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Número de publicaciónUSH1904 H
Tipo de publicaciónConcesión
Número de solicitudUS 08/856,520
Fecha de publicación3 Oct 2000
Fecha de presentación14 May 1997
Fecha de prioridad14 May 1997
También publicado comoCA2237429A1, EP0878168A1
Número de publicación08856520, 856520, US H1904 H, US H1904H, US-H-H1904, USH1904 H, USH1904H
InventoresDavid C. Yates, James W. Voegele, Jesse Kuhns, Anil Nalagatla, Warren P. Williamson, IV
Cesionario originalEthicon Endo-Surgery, Inc.
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Electrosurgical hemostatic method and device
US H1904 H
Resumen
An electrosurgical instrument is provided for cauterization and/or welding of tissue of varying impedance, thickness and vascularity especially in the performance of endoscopic procedures. The instrument compresses the tissue between one pole of a bipolar energy source located on one interfacing surface, and a second interfacing surface applying pressure in a predetermined range. A second pole is located one of the two interfacing surfaces. In a preferred embodiment, the second pole is located on the same interfacing surface as the first pole and an insulator electrically isolates the two poles. A preferred application of the invention is in a cutting instrument wherein a hemostatic line is formed along a cut line using RF energy.
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Reclamaciones(1)
What is claimed is:
1. An electrosurgical device having an end effector, wherein said end effector comprises:
a cutting element arranged on said device to divide tissue engaged by said end effector through a cutting line when said cutting element is actuated.
at least one staple and at least one driver adapted to apply said at least one staple lateral to said cutting line.
first and second opposing interfacing surfaces said interfacing surfaces capable of engaging tissue therebetween, and said end effector capable of receiving bipolar energy therein, said first and second interfacing surfaces applying a predetermined pressure to said tissue in a range of between approximately one hundred fifteen pounds per square inch and approximately one hundred eighty five pounds per square inch a portion of said second interfacing surface comprising a ridge extending from said second interfacing surface to form a tissue compression zone between interfacing surfaces;
electrically isolated first and second poles comprising electrically opposite electrodes capable of conducting bipolar energy therethrough; wherein said first pole is comprised of one or more first electrodes of a first electrical potential; wherein said second pole is comprised of one or more second electrodes of a second electrical potential;
wherein at least one of said one or more first electrodes is located on at least one of said first and said second interfacing surfaces and wherein at least one of said one or more second electrodes is located on at least one of said first and second interfacing surfaces, so that bipolar energy may be communicated between said poles through the tissue; and
wherein each said one or more first electrodes is offset from each said one or more second electrodes, at said first and second interfacing surfaces.
Descripción
FIELD OF THE INVENTION

This invention relates to an improved electrosurgical instrument and method for cauterization, coagulation and/or tissue welding in the performance of surgical procedures, especially endoscopic procedures.

BACKGROUND OF THE INVENTION

Surgical procedures requiring cutting of tissue can cause bleeding at the site of the cutting. Before surgeons had the means to control bleeding many surgical procedures were quite difficult to perform because of excessive blood loss. Hemostasis is even more crucial in endoscopic or laparoscopic surgery where if the bleeding is not kept under control, the laparoscopy must be abandoned and the patient's body cut to perform open surgery so that inaccessible bleeding may be controlled.

Thus, various techniques have been adapted to control bleeding with varying degrees of success such as, for example, suturing, applying clips to blood vessels, and stapling, as well as electrocautery and other thermogenic techniques. Advances in tissue joining, tissue repair and wound closure also have permitted surgical procedures previously not possible or too risky.

Initially, suturing was one of the primary means for providing hemostasis and joining tissue. Before other hemostatic and tissue repair means were introduced, surgeons had to spend a great deal of time sewing the tissue of patients back together.

Surgical clips were introduced as a means to close off blood vessels, particularly when cutting highly vascularized tissue. Application of surgical clips, however, can be cumbersome in certain procedures. The vessels must be identified. Then a clip must be individually applied on both sides of the intended cut of each identified vessel. Also, it may be difficult to find some vessels, particularly where the vessel is surrounded by fatty tissue.

Surgical staplers have been effective in decreasing the amount of time it takes to fasten tissue together. There are various types of surgical staplers. Staplers have been used for tissue joining, and to provide hemostasis in conjunction with tissue cutting. Such devices include, for example, linear and circular cutting and stapling instruments. Typically, a linear cutter has parallel rows of staples with a slot for a cutting means to travel between the rows of staples. This type of surgical stapler secures tissue for improved cutting, joins layers of tissue, and provides hemostasis by applying parallel rows of staples to layers of surrounding tissue as the cutting means cuts between the parallel rows. These types of cutting and stapling devices have been used successfully in procedures involving fleshy tissue such as muscle or bowel, particularly in bowel resection procedures. Circular cutting and stapling devices have successfully been used, for example, in anastomotic procedures where a lumen is rejoined. However, the results with cutting and stapling devices have been less than optimum where the procedure involves cutting highly vascularized tissue, such as mesentery or adnexa, which are prone to having hemostasis problems.

Electrocautery devices have also been used for effecting hemostasis. Monopolar devices utilize one electrode associated with a cutting or cauterizing instrument and a remote return electrode, usually adhered externally to the patient. More recently, bipolar instruments have been used because the cauterizing current is generally limited to tissue between two electrodes of the instrument.

Bipolar forceps have been used for cutting and/or coagulation in various procedures. For example, bipolar forceps have been used in sterilization procedures where the fallopian tubes are sealed off. Generally, bipolar forceps grasp tissue between two poles and apply electrical current through the grasped tissue. Bipolar forceps, however, have certain drawbacks, some of which include the tendency of the current to arc between poles when tissue is thin or the forceps to short when the poles of the forceps touch. The use of forceps for coagulation is also very technique dependent and the forceps are not adapted to simultaneously cauterize a larger area of tissue.

Bipolar scissors have been disclosed where two scissors blades act as two electrodes having insulated shearing surfaces. This device mechanically cuts tissue as coagulating electrical current is delivered to tissue in the current path. Bipolar scissors are also highly technique dependent in their use.

In prior devices, such as the device described in U.S. Pat. No. 5,403,312, electrosurgical energy has been delivered to biologic tissue in order to create a region of coagulation, as, for example, on either side of an incision, thus preventing blood and other bodily fluids from leaking out of the incision. In such a device, if tissue grasped by the jaws is compressed too much by applying excessive pressure to the region of coagulation, the tissue grasped by the end effector may be torn or crushed. If the tissue is not compressed enough because to little pressure is applied to the region of coagulation, the tissue in the region of coagulation may not be not effectively or uniformly cauterized because fluid (e.g. blood) could remain in the region of cauterization. In prior art devices, the surgeon has used tactile feedback and visual clues to determine the amount of pressure to apply to the region in order to obtain optimum coagulation. In instruments wherein the region of coagulation is partially or fully obscured, either by the end effector or by tissue, and is, therefore, not visible to the surgeon, it is particularly difficult for the surgeon to ensure that the appropriate pressure is being applied by the end effectors to ensure proper coagulation. It would, therefore, be advantageous to develop an electrosurgical instrument wherein the surgeon is not required to adjust the pressure applied by the end effector prior to applying electrosurgical energy to tissue in the region of coagulation. It would further be advantageous to design an instrument wherein the pressure applied to the tissue prior to coagulation is within a predetermined range.

One known method of varying the pressure applied to the tissue by the jaws of the end effector involves varying the gap between the jaws depending upon the tissue being grasped. However, such an arrangement would necessitate the use of different instruments, different end effectors or different staple cartridges depending upon the tissue being grasped. It would, therefore, be advantageous to design an instrument wherein the pressure applied by the end effector would vary with the thickness and makeup of the tissue being grasped.

Non electrosurgical endocutters such as those described in U.S. Pat. No. 5,597,107, employ a relatively stiff lower jaw member which includes a staple cartridge in conjunction with a more flexible upper member which acts as an anvil against which the staples are formed. In such instruments, the anvil is generally manufactured to be as stiff as possible, within the limits of size, materials and other design considerations and the spring rate of such an anvil may be, for example, in the range of 350-450 pounds per inch. A stiff anvil helps to ensure that the staples form properly when the instrument is fired. Spring rate, in terms of tissue compression forces in conventional staplers with gap spacing pins, is used in conjunction with the gap pin to create and maintain a minimum gap between the staple cartridge and the anvil, setting the height of the formed staple. Therefore, the designers of conventional stapling instruments with gap spacing pins are primarily interested in the formation of a simple beam with consistent gap to form consistent staples. In other designs, the gap pin is not used and the anvil is designed with sufficient stiffness to facilitate the formation of tissue. It would, therefore, be advantageous to design an electrosurgical instrument where the spring rate of the anvil is sufficiently stiff for the formation of staples while exerting a pressure in a range which facilitates the proper cauterization of tissue.

SUMMARY OF THE INVENTION

It is therefore an object of the present invention to provide a hemostatic electrosurgical instrument which can exert pressure in a range to efficiently provide improved hemostasis in multiple tissue types and thickness, e.g., in fleshy or vascular tissue areas, and high, low or combination impedance tissues. Hemostasis is used herein to mean generally the arresting of bleeding including by coagulation, cauterization and/or tissue joining or welding.

Another object of the invention is to provide an improved cutting and stapling device with an electrocautery means for tissue welding or cauterization along a cutting path wherein the device is adapted to grasp tissue and exert a pressure within a predetermined range in order to provide improved hemostasis prior to cutting the tissue.

These and other objects of the invention are described in an electrosurgical device having an end effector with opposing interfacing surfaces associated with jaws for engaging tissue therebetween, and two electrically opposite poles located on one or both of the opposing surfaces. The poles are isolated from each other with an insulating material, or, where the poles are on opposite interfacing surfaces, they may be offset from each other so that they do not directly oppose each other on interfacing surfaces. In particular, an electrosurgical device according to the present invention includes a substantially fixed lower jaw. Further, an electrosurgical device according to the present invention includes a substantially flexible upper jaw having a spring rate in the range of between approximately 200 pounds per inch and approximately 600 pounds per inch. More particularly, the spring rate of the upper jaw is approximately 275 pounds per inch.

An electrosurgical instrument of a preferred embodiment compresses tissue to a pressure within a predetermined range in a compression zone between a first interfacing surface and a second interfacing surface and applies electrical energy through the compression zone. The first interfacing surface is comprised of: a first pole of a bipolar energy source, which interfaces with the compressed tissue in the compression zone; and a second pole electrically isolated from the first pole and located on the same or opposite interfacing surface. Electrically isolated poles are defined herein to mean electrodes isolated from each other by an insulating material in the end effector and/or offset from each other on opposing surfaces.

In a preferred embodiment, the compression zone is an area defined by a compression ridge on one of the interfacing surfaces which compresses the tissue against the other interfacing surface. Also, there may be a compression ridge on both interfacing surfaces. A coagulation zone is defined by the first pole, the second pole, and an insulator insulating the first pole from the second pole. The second pole, located on one of the interfacing surfaces, is generally adjacent to the insulator on the same interfacing surface or across from the insulator on an opposing surface. This arrangement electrically isolates the two poles and enables the current path between the first and second poles to cross through a desired area of tissue.

It is believed that the tissue compression normalizes tissue impedance by reducing structural differences in tissue which can cause impedance differences. Compression also stops significant blood flow and squeezes out blood which acts as a heat sink, particularly when flowing through blood vessels. Thus, compression optimizes delivery of energy to tissue in part by enabling the rate of energy delivery to exceed the rate of dissipation due to blood flow. The arrangement of the electrodes, which make up the poles, is important to ensure that the current passing between the two poles passes though the compression zone. Also, insulation or isolation of the opposite poles from each other on the instrument permits tissue compression without shorting of the instrument poles or electrical arcing common in bipolar instruments.

In one embodiment of the present invention, the pressure initially applied to tissue in the compression zone is between approximately 30 pounds per square inch (psi) and approximately 250 psi. In a further embodiment of the present invention, the pressure initially applied to tissue in the compression zone is between approximately 75 psi and 250 psi. In a further embodiment of the present invention, the pressure initially applied to tissue in the compression zone is between approximately 115 psi and 185 psi.

Thus, the tissue compression and the arrangement of the electrodes permit more efficient cauterization and offer the advantage of achieving hemostasis in a wide range of tissue impedance, thickness and vascularity.

In an alternative embodiment of the invention, the first pole is located on a first interfacing surface of a first jaw and the second pole is located on the same jaw as the first pole, but not on the interfacing surface.

The present invention also provides a device capable of coagulating a line or path of tissue along or lateral to a cut line or a cutting path. In one embodiment, the first pole comprises an elongated electrode. The elongated electrode along with the adjacent insulator form a ridge to compress the tissue to be cauterized. The second pole is adjacent the insulator on an opposite side of the insulator from the first pole.

In one preferred embodiment, a cutting means for cutting tissue is incorporated into the device and the device provides hemostatic lines adjacent to the path of the cutting means. Of course, cutting may occur at anytime either before, during or after cauterization or welding. In one variation of this preferred embodiment, stapling means is provided on one or both sides of the cutting path.

In one embodiment, an indicator means communicates to the user that the tissue has been cauterized to a desired or predetermined degree.

In another embodiment, the coagulation is completed prior to any mechanical cutting, i.e., actuation of the cutting means. If an indicator means is used, once tissue is cauterized, the cutting means may be actuated to cut between the parallel bars while the rows of staples are applied to the tissue.

In another embodiment, the hemostatic device is incorporated into a linear cutter similar to a linear cutting mechanical stapler. In this embodiment the hemostatic device comprises two parallel and joined elongated electrode bars which form one pole, and a slot for a cutting means to travel between the bars. Optionally, one or more rows of staples may be provided on each side of the slot and bars to provide additional hemostasis. In operation, tissue is clamped between two jaws. Electrical energy in the form of radio frequency current is applied to the compressed tissue to cauterize the blood vessels along the two parallel bars.

Another embodiment provides a means for detecting abnormal impedance or other electrical parameters which are out of a predetermined range. For example, the means for detecting may be used to indicate when the instrument has been applied to tissue exhibiting impedance out of range for anticipated good coagulation. It may also be used for detecting other instrument abnormalities. It is possible to detect the abnormal condition, for example, by using comparisons of normal ranges of initial tissue impedance in the interface electronics. This could be sensed in the first few milliseconds of the application of RF energy and would not present a significant therapeutic dose of energy. A warning mechanism may be used to warn the user when the impedance is out of range. Upon repositioning of the instrument, the same measurement criteria would apply and if the tissue impedance was again out of range, the user would again be warned. This process would continue until the normal impedance range was satisfied and good coagulation could be anticipated.

Similarly another embodiment provides a tissue welding and cauterizing cutting device similar to an intraluminal stapler. Preferably, the poles are formed in two concentric circle electrodes separated by an insulator. The electrodes which make up the poles may be located on either the stapler cartridge or the anvil.

These and other objects of the invention will be better understood from the following attached Detailed Description of the Drawings, when taken in conjunction with the Detailed Description of the invention.

DETAILED DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side elevational view of an endoscopic electrocautery linear stapling and cutting instrument of one embodiment of the present invention;

FIG. 2 is a side cross sectional view of the instrument of FIG. 1;

FIG. 3 is a partial cross sectional view of the distal end of the instrument of FIG. 1 in an open position;

FIG. 4 is a partial cross sectional view of the distal end of the instrument of FIG. 1 in a closed, unfired position;

FIG. 5 is a partial cross sectional view of the distal end of the instrument of FIG. 1 in a closed, fired position;

FIG. 6 is a front cross sectional view of the distal end of the instrument of FIG. 3 taken along the line 6--6;

FIG. 7 is a bottom isolated view of the anvil jaw of the instrument of FIG. 1;

FIG. 8 is a top isolated view of a cartridge of the instrument of FIG. 1;

FIG. 9 is a side cross sectional view of the jaw of FIG. 7 along the line 9--9;

FIG. 10 is a flow chart illustrating a feedback system of the present invention;

FIG. 11 is a front cross sectional view of the end effector of another embodiment of the present invention;

FIG. 12 is a front cross sectional view of the end effector of another embodiment of the present invention;

FIG. 13 is a front cross sectional view of the end effector of another embodiment of the present invention;

FIG. 14 is a front cross sectional view of the end effector of another embodiment of the present invention;

FIG. 15 is a bottom isolated view of the anvil of another embodiment of the present invention;

FIG. 16 is a bottom isolated view of the anvil of another embodiment of the present invention;

FIG. 17 illustrates a cross sectional view of the distal end of another embodiment of the present invention;

FIG. 18 is front cross sectional view of the end effector of FIG. 17;

FIG. 19 is a front cross sectional view of the end effector of another embodiment of the present invention;

FIG. 20 is a top view of a cartridge of a circular cutter of the present invention;

FIG. 21 is a bottom view of the anvil of a circular cutter of the present invention.

FIG. 22 is a cross sectional view of the end effector according to a further embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring now to FIGS. 1-9, there is illustrated a preferred embodiment of the present invention. An endoscopic electrocautery linear cutting and stapling instrument 10 is shown having a body 16 coupled to a shaft 30 with a lumen extending therethrough and an end effector 50 extending from the distal end 21 of the shaft 30. The shaft 30 is formed of an insulative material and has an electrically conductive sheath 38 extending through its lumen. A channel 39 extending through the sheath 38 guides co-axial movement of a driver means 44 within the channel 39. In this particular embodiment, the driver means 44 includes a firing trigger 14 associated with the body 16, coupled to a flexible firing rod 40 coupled to a driving rod 41, coupled to a block 43. The block 43 is coupled to a cutting means 11 and a staple driving wedge 13, which the driving means 44 advances by way of the block 43 into the end effector 50.

The end effector 50 comprises two interfacing jaw members 32, 34. The end effector 50 is secured by way of jaw member 34 to the channel 39. The jaw member 32 is movably secured to jaw member 34. The body 16 has a clamping trigger 12 for closing the jaws 32, 34 which longitudinally advances a close rack 45 coupled to the proximal end of the sheath 38. The close rack 45 advances the sheath 38 co-axially through the shaft 30. The sheath 38 advances over a camming surface 27 of jaw 32 to close the jaws 32 and 34 onto tissue situated between the jaws. As described in more detail below, the close rack 45 also acts as a switch to close the circuit which communicates electrical energy to the end effector 50.

Referring now to FIGS. 3-9 and 22 an enlargement of the end effector 50 of the instrument 10 is illustrated. The jaw members 32 and 34 are shown in an unclamped position in FIG. 3, in a clamped, unfired position in FIG. 4 and in a clamped, fired position in FIG. 5. Jaw member 32 comprises an anvil 18, a U-shaped first pole 52 extending longitudinally with respect to the jaw 32, and a U-shaped insulating material 55 surrounding the outside of the first pole 52. Jaw member 32 has an inner surface 33 which faces an inner surface 35 of jaw 34. The inner surface 33 includes first pole 52 which comprises two electrically communicating electrode bars 53, 54 comprised of stainless steel or aluminum, extending substantially along the length of the inner surface 33. The bars 53, 54 are separated by a knife channel 42 extending longitudinally through the first pole's center to form its U-shape. The surface of the bars are formed in flat strips to provide more surface area contact with tissue. Two series of pockets 36, 37 located on anvil 18, for receiving staple ends, extend along the inner surface 33, lateral to and outside of bars 53, 54 respectively. The electrode bars 53, 54 and the insulating material 55 form a ridge 56 extending out relative to the anvil portion 33a of the inner surface 33 (FIG. 6). The anvil 18 is formed of an electrically conductive material and acts as a second pole electrically opposite to the first pole. The anvil 18 is isolated from the first pole 52 by the U-shaped insulating material 55.

Jaw member 34 comprises a cartridge channel 22 and a cartridge 23. The cartridge 23 includes a track 25 for the wedge 13, knife channel 26 extending longitudinally through the center of the cartridge 23, a series of drivers 24 extending into track 25 and staples 100 arranged in two sets of parallel double rows. When tissue is engaged between the jaws 32, 34, the driver means 44 may be actuated or fired using trigger 14 to advance the cutting means 11 and wedge 13 through the engaged tissue to staple and cut the tissue. When the firing mechanism 14 is actuated, the wedge 13 is advanced through the track 25 causing the drivers 24 to displace towards the staples 100, thereby driving the staples 100 through tissue and into anvil pockets 36, 37.

In the embodiment of the invention illustrated in FIG. 22, dimension B, which is measured from inner surface 33 of jaw member 32 to tissue surface 80 of U-shaped insulating material 55, is preferably in the range of from approximately 0.0 inches to approximately 0.045 inches and preferably approximately 0.0 inches. Dimension C, which is measured from inner edge 82 to outer edge 84 of U-shaped insulator 55 along tissue surface 80, is preferably in the range of from approximately 0.01 inches to approximately 0.04 inches and preferably approximately 0.02 inches. Dimension E, which is measured from inner edge 86 to outer edge 88 of first pole 52 as measured along tissue surface 90, is preferably in the range of from approximately 0.002 inches to 0.04 inches and preferably approximately 0.020 inches. Dimension G, which is measured from tissue surface 90 to tissue surface 92 with jaws 32 and 34 closed, is preferably in the range from approximately 0.0 inches to approximately 0.020 inches and preferably approximately 0.001 inches. Dimension G is measured without tissue engaged.

A knob 15 located on the distal end of the body 16 rotates the shaft 30, sheath 38, channel 39 and end effector 50 which are directly or indirectly coupled to the knob 15 so that the knob 15 may be used for rotational placement of the end effector jaws 32,34.

Bipolar energy is supplied to the end effector 50 from an electrosurgical generator 60 through wires 19, 20 extending into the body 16 of the instrument. The generator 60 is user controlled by way of a footswitch 65.

Wire 19 which provides electrical current to the first pole, is coupled through a wire or other electrical contact means 61 to electrical contact 62, associated with the first pole, located on the distal end of close rack 45. Wire 20 which carries the current of the opposite pole, is coupled through a wire or other electrical contact means 66 to a disc contact 67 located at the distal end of the close rack 45 and electrically isolated from contact 62.

A disc contact 63, associated with the first pole, located at the distal end of the body 16 is in electrical communication with a wire or other contact means 64. Contact means 64 extends through channel 39 to end effector jaw 32 where it contacts first pole 52. The disc contact 63 permits the knob 15 to rotate while contact is maintained between the disc contact 63 and the contact means 64. The contact means 64 is electrically insulated from the sheath 38.

When the clamping trigger 12 is actuated, the close rack 45 moves distally so that the contact 62 comes in electrical communication with the disc contact 63 and the disc contact 67, associated with the second pole 51, comes in electrical contact with the electrically conductive sheath 38. The sheath 38 moves over the camming surface 27 of the electrically conductive anvil 18 which acts as the return electrode. Thus the electrical circuit is closed when and only when the clamping trigger 12 is closed.

In operation, the end effector 50 of the instrument is located at a tissue site where tissue is to be cut. The jaw members 32, 34 are opened by pressing a release button 70 which releases a button spring 71 and permits the close rack 45 to move proximally. Tissue is then placed between the interfacing inner surfaces 33, 35 respectively of the jaw members 32, 34. The clamping trigger 12 is squeezed to cause the sheath 38 to move over the camming surface 27 and thereby close the jaws 32, 34 and simultaneously close the electrical circuit as described above. The electrode bars 53, 54 and the insulating material 55, which together form the ridge 56, compress the tissue against the inner surface 35 of jaw member 34. A user then applies RF energy from the generator 60 using the footswitch 65 or other switch. Current flows through the compressed tissue between the first pole 52, i.e. the bars 53, 54, and the second pole 51, i.e., the anvil 18.

In one embodiment of the present invention the initial pressure applied to compress the tissue in the compression zone is between approximately 30 pounds per square inch (psi) and 250 psi. More particularly, in a further embodiment of the present invention the initial pressure applied to compress the tissue in the compression zone is between approximately 75 psi and 250 psi. More particularly in a further embodiment of the present invention the initial pressure applied to compress the tissue in the compression zone is between approximately 75 psi and 175 psi. In one embodiment of the present invention, the initial pressure applied to compress tissue positioned between the jaws is approximately 125 psi. With sufficient pressure applied fluid, including blood, is forced out of the tissue in the compression zone, facilitating coagulation. In addition, pressure applied to tissue within the compression zone facilitates coupling of electrosurgical energy to the tissue by forcing the tissue against the electrode.

The pressure exerted by the anvil is a function of the spring rate of the anvil. By providing a "pre-bend" angle on the anvil it is possible to obtain a pre-load (at a zero gap.) Thus, where a pre-bend angle is applied, the anvil may be viewed as a prestressed beam. A Preferred value of preload is in the range of between 12 and 18 pounds with a preferred value of approximately 15 pounds. The spring rate of the anvil is more accurately a function of the stiffness of the "system", where the system includes the anvil, channel, cartridge, tube, etc. Each of the elements of the system has a particular spring rate and each may be suitably modified to increase the stiffness of the system.

In one embodiment of the present invention, that the spring rate of jaw 32 is between approximately 225 pounds per inch and approximately 350 pounds per inch. More particularly, the spring rate of anvil 18 on jaw 32 is preferably in the range of approximately 275 pounds per inch.

Preferably the bipolar energy source is a low impedance source providing radio frequency energy from about 300 kHz to 3 MHZ. Preferably, the current delivered to the tissue is from 0.1 to 1.5 amps and the voltage is from 30 to 200 volts RMS.

An audible, visible, tactile, or other feedback system may be used to indicate when sufficient cauterization has occurred at which point the RF energy may be turned off. An example of such a feedback system is described below. After the RF energy is turned off, the cutting means 11 is advanced and the staples 100 are fired using the firing trigger 14. Firing is accomplished by rotating the firing trigger 14 acting as a lever arm about pivot 14a. The driver means 44 advances the cutting means 11 and wedge 13. The cutting means 11 cuts the tissue in between the bars 53, 54 where the tissue has been cauterized. Thus, the cut line is lateral to the coagulation lines formed by the bar electrodes. The wedge 13 simultaneously advances the drivers 24 into the staples 100 causing the staples 100 to fire through tissue and into the pockets 36, 37 of the anvil 18. Staples 100 are applied in two longitudinal double rows on each side of the cutting means 11 as the cutting means cuts the tissue.

Operation of linear staplers are known in the art and are discussed, for example, in U.S. Pat. Nos. 4,608,981, 4,633,874, and U.S. application Ser. No. 07/917,636 incorporated herein by reference.

In one embodiment the cartridge provides multifire stapling capabilities by replacing the double row of staples with a single row. In the laparoscopic stapling and cutting devices presently in use, a single shot replaceable cartridge is used. In order to provide better hemostasis, this type of stapler was designed to provide a double row of staples for each parallel row. Because of the size of the space necessary to contain the double row of staples, a refireable cartridge with stacked staples has not been preferred because of the additional space required for stacking staples. In the multifire stapling embodiment a single row of staples is used. Using a single row of staples permits stacking of staples in the space previously occupied by the second row of staples, providing multifire capabilities. In a further embodiment, no staples are required and the electrical current lines provide the necessary hemostasis.

A preferred embodiment of the present invention includes a feedback system designed to indicate when a desired or predetermined degree of coagulation has occurred. This is particularly useful where the coagulation zone is not visible to the user. In a particular embodiment, the feedback system measures electrical parameters of the system which include coagulation level.

The feedback system may also determine tissue characteristics at or near a coagulation zone which indicate degree of coagulation. The electrical impedance of the tissue to which the electrical energy is applied may also be used to indicate coagulation. Generally, as energy is applied to the tissue, the impedance will initially decrease and then rise as coagulation occurs. An example of the relationship between electrical tissue impedance over time and coagulation is described in Vaellfors, Bertil and Bergdahl, Bjoern "Automatically controlled Bipolar Electrocoagulation," Neurosurg. Rev. p. 187-190 (1984) incorporated herein by reference. Also as desiccation occurs, impedance increases. Tissue carbonization and or sticking to instrument as a result of over application of high voltage may be prevented using a feedback system based on tissue impedance characteristics. Other examples of tissue characteristics which may indicate coagulation include temperature and light reflectance.

Referring to FIG. 10, a flow chart illustrates a feedback system which is implemented in a preferred embodiment of the present invention. First, energy is applied to the tissue. Then the system current and voltage applied to the tissue is determined. The impedance value is calculated and stored. Based on a function of the impedance, for example, which may include the impedance, the change in impedance, and/or the rate of change in impedance, it is determined whether desired coagulation has occurred. If coagulation has occurred to a predetermined or desired degree, an indication means indicates that the energy should be turned off. Such an indication means may include a visible light, an audible sound or a tactile indicator. The feedback means may also control the generator and turn the energy off at a certain impedance level. An alternative embodiment provides a continuous audible sound in which the tone varies depending on the impedance level. An additional feature provides an error indication means for indicating an error or instrument malfunction when the impedance is below a normal minimum and/or above a maximum range.

FIGS. 11-14 illustrate alternative configurations of an end effector. In FIG. 11 the first pole 152 and the second pole 151 are both located on the same jaw 132 having the anvil 118. The U-shaped first pole 152 forms the knife channel 142. A U-shaped insulator 155 surrounds the first pole 152 except on the surface 133 so that it is electrically isolated from the second pole 151. The compression ridge 156 is formed on the cartridge which is made from an electrically non-conductive material. The ridge 156 compresses tissue against the first pole 152 and insulator 155 to form a tissue compression zone.

In FIG. 12, the first pole 252 and the second pole 251 are both located on the same jaw 232 having the anvil 218. The first pole 252 and the second pole 251 each are located on opposing sides of the knife channel 242. An insulator 255 surrounds the poles 251, 252 except on the surface 233 so that the poles 251, 252 are electrically isolated from each other. The compression ridge 256 is formed on the cartridge which is made from an electrically non-conductive material. The ridge 256 compresses tissue against the poles 251, 252 and insulator 255 to form a tissue compression zone.

In FIG. 13, second pole 351 is located on the jaw 332 having the anvil 318 while the first pole 352 is located on the cartridge 323. The U-shaped first pole 352 forms the knife channel 326 and is surrounded by insulator 355a. A U-shaped insulator 355b forms the knife channel 342 in jaw 332. Except for the insulator 355b, the jaw is formed of an electrically conductive material which makes up the second pole 351. The first pole 352 and the insulator 355a form the compression ridge 356 which compresses tissue against the surface 333 of jaw 332 to form a compression zone. The insulator 355b is of sufficient width that it prevents poles 351, 352 form contacting when the jaws 332,334 are closed.

In FIG. 14, the first pole 452 and the second pole 451 are both located on the jaw 434 having the cartridge 423. The first pole 452 and the second pole 451 each are located on opposing sides, forming the knife channel 426 through the cartridge 423. An insulator 455a surrounds the poles 451, 452 except on the surface 435, so that the poles 451, 452 are electrically isolated from each other. The compression ridge 456 is formed on the cartridge 423 and forms a compression zone by compressing tissue against an insulator 455b disposed on the surface 433 of the jaw 432.

FIG. 15 illustrates an alternative embodiment. The first and second poles 551, 552 and knife channel 542 are arranged in a similar configuration as in FIG. 12 except that the first and second poles 551 and 552 each comprise a series of electrically connected electrodes staggered along the length of the knife channel with insulating material in between staggered electrodes.

FIG. 16 illustrates staggered electrodes as in FIG. 15 but with first pole electrodes 652 and second pole electrodes 651 alternating along the length of the knife channel 642 and on each side of the knife channel 642.

FIGS. 17 and 18 illustrate another embodiment in which first and second poles 751, 752 each comprise staggered electrodes. In this embodiment, the first pole 752 is staggered along each side of the knife channel 126 and located on the compression ridge 756 formed on the cartridge 723. The second pole 751 is staggered along each side of the knife channel 742 on the surface 733 of jaw 732. As can be seen from FIG. 18, the poles 751, 752 are vertically aligned, but as illustrated in FIG. 17, are staggered so that when the jaws 732, 734 are closed, the poles are electrically isolated from each other by insulators 755a, 755b.

FIG. 19 illustrates an alternative embodiment of the end effector. The first pole 852 and the second pole 851 are both located on the jaw 832 having an anvil 818. The first pole 852 forms the ridge 856 for compressing tissue in a compression zone and is located on interfacing surface 833. The second pole 851 is located on the side of the anvil 818 and not on interfacing surface 833. FIGS. 20 and 21 illustrate a circular cutter of the present invention with stapling means. FIG. 20 illustrates the stapler cartridge 900 with an interfacing surface 933. A double row of staple apertures 901 through which staples are driven into tissue are staggered about the outer circumference of the surface 932. A first pole 952 encircles the inner circumference of the surface 933. An insulator 955 electrically isolates the first pole 952 from the portion 933a of the surface 933 surrounding the staple apertures. The staple aperture portion 933a is formed of an electrically conductive material and acts as a second pole. A circular cutting knife 911 is recessed within the cartridge 900 radially inward from the inner circumference of the surface 933.

FIG. 21 illustrates an anvil 918 with pockets 937 for receiving staples and a compression ridge 956 for compressing tissue against the first pole 952 and insulator 955 of the cartridge. The circular cutter is operated similarly to the circular stapler described in U.S. Pat. No. 5,104,025 incorporated herein by reference. Prior to stapling and cutting however, tissue welding electrical current may be delivered between the first pole 952 and the staple aperture portion 933a to tissue.

In an alternative embodiment, the circular cutter may be used without staples. Electrical current is delivered through the poles to weld and coagulate tissue, then the knife may be advanced to cut tissue in a procedure such as an anastomosis.

In operation, the jaws of the instrument, for example, jaws 32 and 34 of end effector 50, are closed around the tissue which is to be treated. Tissue trapped between the instrument jaws is compressed as described herein

An electrosurgical instrument according to the present invention is beneficial in that coagulation of tissue is enhanced since the pressures applied force fluid out of the coagulation region without tearing the tissue. The pressure ranges specified herein are also beneficial in that, using an instrument according to the present invention, contact between the tissue and electrodes is improved, coagulation is improved throughout the tissue and charring is reduced.

Several variations of this invention has been described in connection with two specific embodiments involving endoscopic cutting and stapling. Naturally, the invention may be used in numerous applications where hemostasis in desired. Accordingly, will be understood by those skilled in the art that various changes and modifications may be made in the invention without departing from its scope, which is defined by the following claims and their equivalents.

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US3898992 *8 Jul 197412 Ago 1975Ultrasonic SystemsUltrasonic surgical methods
US4655216 *23 Jul 19857 Abr 1987Alfred TischerCombination instrument for laparoscopical tube sterilization
US4671274 *30 Ene 19849 Jun 1987Kharkovsky Nauchno-Issledovatelsky Institut Obschei IBipolar electrosurgical instrument
US5151102 *31 May 199029 Sep 1992Kyocera CorporationBlood vessel coagulation/stanching device
US5290287 *11 Sep 19921 Mar 1994Richard Wolf GmbhEndoscopic coagulation forceps
US5383880 *16 Dic 199224 Ene 1995Ethicon, Inc.Endoscopic surgical system with sensing means
US5389098 *14 May 199314 Feb 1995Olympus Optical Co., Ltd.Surgical device for stapling and/or fastening body tissues
US5403312 *22 Jul 19934 Abr 1995Ethicon, Inc.Electrosurgical hemostatic device
US5465895 *3 Feb 199414 Nov 1995Ethicon Endo-Surgery, Inc.Surgical stapler instrument
US5597107 *1 Jun 199528 Ene 1997Ethicon Endo-Surgery, Inc.Surgical stapler instrument
US5735848 *20 Abr 19957 Abr 1998Ethicon, Inc.Electrosurgical stapling device
US5810811 *4 Abr 199722 Sep 1998Ethicon Endo-Surgery, Inc.Electrosurgical hemostatic device
EP0640315A1 *21 Jul 19941 Mar 1995Ethicon Inc.Electrosurgical stapling device
EP0717960A2 *21 Dic 199526 Jun 1996Ethicon Endo-SurgeryElectrosurgical hemostatic device
EP0737446A1 *11 Abr 199616 Oct 1996Ethicon Endo-Surgery, Inc.Electrosurgical hemostatic device with recessed and deformable electrodes
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US67266861 Abr 200227 Abr 2004Sherwood Services AgBipolar electrosurgical instrument for sealing vessels
US67432291 Mar 20021 Jun 2004Sherwood Services AgBipolar electrosurgical instrument for sealing vessels
US67558278 Jul 200229 Jun 2004Medtronic, Inc.Tissue sealing electrosurgery device and methods of sealing tissue
US677678026 Ago 200217 Ago 2004Medtronic, Inc.Tissue sealing electrosurgery device and methods of sealing tissue
US7041102 *22 May 20039 May 2006Surgrx, Inc.Electrosurgical working end with replaceable cartridges
US7384420 *19 May 200410 Jun 2008Sherwood Services AgVessel sealer and divider
US74317309 May 20037 Oct 2008Tyco Healthcare Group LpSurgical stapling apparatus having a wound closure material applicator assembly
US74556821 Feb 200525 Nov 2008Tyco Healthcare Group LpStructure containing wound treatment material
US74617672 Jun 20069 Dic 2008Tyco Healthcare Group LpBattery powered surgical instrument
US74648472 Jun 200616 Dic 2008Tyco Healthcare Group LpSurgical stapler with timer and feedback display
US748509218 Ene 20023 Feb 2009Maquet Cardiovascular LlcVessel harvesting apparatus and method
US751735616 Abr 200314 Abr 2009Tyco Healthcare Group LpSurgical stapler and method
US75342436 Jun 200319 May 2009Maquet Cardiovascular LlcDissection and welding of tissue
US762537016 Ene 20031 Dic 2009Applied Medical Resources CorporationTissue fusion/welder apparatus and method
US763226918 Ene 200515 Dic 2009Ethicon Endo-Surgery, Inc.Electrosurgical instrument with replaceable cartridge
US76350732 Jun 200822 Dic 2009Tyco Healthcare Group LpSurgical stapler and method
US764484831 Ene 200612 Ene 2010Ethicon Endo-Surgery, Inc.Electronic lockouts and surgical instrument including same
US764527722 Dic 200512 Ene 2010Salient Surgical Technologies, Inc.Fluid-assisted medical device
US7645278 *22 Feb 200612 Ene 2010Olympus CorporationCoagulating cutter
US76480555 Sep 200819 Ene 2010Tyco Healthcare Group LpSurgical stapling apparatus with powered articulation
US765149429 Ene 200326 Ene 2010Salient Surgical Technologies, Inc.Fluid-assisted medical device
US765500718 Dic 20062 Feb 2010Covidien AgMethod of fusing biomaterials with radiofrequency energy
US766564729 Sep 200623 Feb 2010Ethicon Endo-Surgery, Inc.Surgical cutting and stapling device with closure apparatus for limiting maximum tissue compression force
US766974631 Ago 20052 Mar 2010Ethicon Endo-Surgery, Inc.Staple cartridges for forming staples having differing formed staple heights
US767033410 Ene 20062 Mar 2010Ethicon Endo-Surgery, Inc.Surgical instrument having an articulating end effector
US76737809 Nov 20059 Mar 2010Ethicon Endo-Surgery, Inc.Articulation joint with improved moment arm extension for articulating an end effector of a surgical instrument
US76737834 Nov 20059 Mar 2010Ethicon Endo-Surgery, Inc.Surgical stapling instruments structured for delivery of medical agents
US767811129 Nov 200516 Mar 2010Medtronic, Inc.Device and method for ablating tissue
US768680410 Ene 200630 Mar 2010Covidien AgVessel sealer and divider with rotating sealer and cutter
US768682721 Oct 200530 Mar 2010Covidien AgMagnetic closure mechanism for hemostat
US769547023 Jun 200313 Abr 2010Maquet Cardiovascular LlcIntegrated vessel ligator and transector
US769920428 Oct 200820 Abr 2010Tyco Healthcare Group LpStructure containing wound treatment material
US770873519 Jul 20054 May 2010Covidien AgIncorporating rapid cooling in tissue fusion heating processes
US771731231 May 200618 May 2010Tyco Healthcare Group LpSurgical instruments employing sensors
US772193430 May 200725 May 2010Ethicon Endo-Surgery, Inc.Articulatable drive shaft arrangements for surgical cutting and fastening instruments
US77226078 Nov 200625 May 2010Covidien AgIn-line vessel sealer and divider
US77272324 Feb 20051 Jun 2010Salient Surgical Technologies, Inc.Fluid-assisted medical devices and methods
US77401592 Ago 200622 Jun 2010Ethicon Endo-Surgery, Inc.Pneumatically powered surgical cutting and fastening instrument with a variable control of the actuating rate of firing with mechanical power assist
US774461518 Jul 200629 Jun 2010Covidien AgApparatus and method for transecting tissue on a bipolar vessel sealing instrument
US774462818 Abr 200529 Jun 2010Tyco Healthcare Group LpSurgical stapling apparatus having a wound closure material applicator assembly
US775390431 Ene 200613 Jul 2010Ethicon Endo-Surgery, Inc.Endoscopic surgical instrument with a handle that can articulate with respect to the shaft
US775390929 Abr 200413 Jul 2010Covidien AgElectrosurgical instrument which reduces thermal damage to adjacent tissue
US775792523 Abr 200820 Jul 2010Tyco Healthcare Group LpBattery powered surgical instrument
US776621031 Ene 20063 Ago 2010Ethicon Endo-Surgery, Inc.Motor-driven surgical cutting and fastening instrument with user feedback system
US77669109 Nov 20063 Ago 2010Tyco Healthcare Group LpVessel sealer and divider for large tissue structures
US777077531 Ene 200610 Ago 2010Ethicon Endo-Surgery, Inc.Motor-driven surgical cutting and fastening instrument with adaptive user feedback
US77714256 Feb 200610 Ago 2010Covidien AgVessel sealer and divider having a variable jaw clamping mechanism
US777603613 Mar 200317 Ago 2010Covidien AgBipolar concentric electrode assembly for soft tissue fusion
US77760377 Jul 200617 Ago 2010Covidien AgSystem and method for controlling electrode gap during tissue sealing
US778987829 Sep 20067 Sep 2010Covidien AgIn-line vessel sealer and divider
US779447529 Sep 200614 Sep 2010Ethicon Endo-Surgery, Inc.Surgical staples having compressible or crushable members for securing tissue therein and stapling instruments for deploying the same
US779902613 Nov 200321 Sep 2010Covidien AgCompressible jaw configuration with bipolar RF output electrodes for soft tissue fusion
US779902826 Sep 200821 Sep 2010Covidien AgArticulating bipolar electrosurgical instrument
US77990399 Nov 200521 Sep 2010Ethicon Endo-Surgery, Inc.Surgical instrument having a hydraulically actuated end effector
US781128214 Nov 200512 Oct 2010Salient Surgical Technologies, Inc.Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof
US78112838 Oct 200412 Oct 2010Covidien AgOpen vessel sealing instrument with hourglass cutting mechanism and over-ratchet safety
US781563422 Dic 200319 Oct 2010Salient Surgical Technologies, Inc.Fluid delivery system and controller for electrosurgical devices
US781987229 Sep 200626 Oct 2010Covidien AgFlexible endoscopic catheter with ligasure
US78237601 May 20072 Nov 2010Tyco Healthcare Group LpPowered surgical stapling device platform
US782879827 Mar 20089 Nov 2010Covidien AgLaparoscopic bipolar electrosurgical instrument
US783708018 Sep 200823 Nov 2010Ethicon Endo-Surgery, Inc.Surgical stapling instrument with device for indicating when the instrument has cut through tissue
US783768513 Jul 200523 Nov 2010Covidien AgSwitch mechanisms for safe activation of energy on an electrosurgical instrument
US784553422 Dic 20097 Dic 2010Tyco Healthcare Group LpSurgical stapler with timer and feedback display
US784553731 Ene 20067 Dic 2010Ethicon Endo-Surgery, Inc.Surgical instrument having recording capabilities
US78461585 May 20067 Dic 2010Covidien AgApparatus and method for electrode thermosurgery
US784616129 Sep 20067 Dic 2010Covidien AgInsulating boot for electrosurgical forceps
US785781218 Dic 200628 Dic 2010Covidien AgVessel sealer and divider having elongated knife stroke and safety for cutting mechanism
US787098924 Jul 200818 Ene 2011Tyco Healthcare Group LpSurgical stapler with timer and feedback display
US787785219 Sep 20081 Feb 2011Tyco Healthcare Group LpMethod of manufacturing an end effector assembly for sealing tissue
US787785319 Sep 20081 Feb 2011Tyco Healthcare Group LpMethod of manufacturing end effector assembly for sealing tissue
US78790358 Nov 20061 Feb 2011Covidien AgInsulating boot for electrosurgical forceps
US788753517 Ago 200415 Feb 2011Covidien AgVessel sealing wave jaw
US788753619 Ago 200915 Feb 2011Covidien AgVessel sealing instrument
US789687812 Mar 20091 Mar 2011Coviden AgVessel sealing instrument
US79092218 Oct 200822 Mar 2011Tyco Healthcare Group LpBattery powered surgical instrument
US790982317 Ene 200622 Mar 2011Covidien AgOpen vessel sealing instrument
US792206316 Oct 200812 Abr 2011Tyco Healthcare Group, LpPowered surgical instrument
US792271812 Oct 200612 Abr 2011Covidien AgOpen vessel sealing instrument with cutting mechanism
US792295328 Sep 200612 Abr 2011Covidien AgMethod for manufacturing an end effector assembly
US793164914 Feb 200726 Abr 2011Tyco Healthcare Group LpVessel sealing instrument with electrical cutting mechanism
US793166010 May 200726 Abr 2011Tyco Healthcare Group LpPowered tacker instrument
US793505214 Feb 20073 May 2011Covidien AgForceps with spring loaded end effector assembly
US79388425 Oct 199910 May 2011Maquet Cardiovascular LlcTissue dissector apparatus
US794704119 Ago 200924 May 2011Covidien AgVessel sealing instrument
US795056013 Abr 200731 May 2011Tyco Healthcare Group LpPowered surgical instrument
US79511486 Feb 200431 May 2011Salient Surgical Technologies, Inc.Electrosurgical device having a tissue reduction sensor
US795114917 Oct 200631 May 2011Tyco Healthcare Group LpAblative material for use with tissue treatment device
US795115022 Feb 201031 May 2011Covidien AgVessel sealer and divider with rotating sealer and cutter
US795533114 Mar 20057 Jun 2011Ethicon Endo-Surgery, Inc.Electrosurgical instrument and method of use
US7963431 *28 Ago 200821 Jun 2011Tyco Healthcare Group, LpGrasping jaw mechanism
US796396510 May 200721 Jun 2011Covidien AgBipolar electrosurgical instrument for sealing vessels
US796679929 Jun 200728 Jun 2011Ethicon Endo-Surgery, Inc.Method of manufacturing staples
US796717814 Ene 200928 Jun 2011Tyco Healthcare Group LpGrasping jaw mechanism
US799814030 Mar 200416 Ago 2011Salient Surgical Technologies, Inc.Fluid-assisted medical devices, systems and methods
US800279515 Abr 201023 Ago 2011Tyco Healthcare Group, L.P.Surgical instruments employing sensors
US800688712 Ene 201030 Ago 2011Tyco Healthcare Group LpSurgical stapling apparatus with powered articulation
US80168279 Oct 200813 Sep 2011Tyco Healthcare Group LpApparatus, system, and method for performing an electrosurgical procedure
US80340521 Nov 201011 Oct 2011Covidien AgApparatus and method for electrode thermosurgery
US803867022 Dic 200518 Oct 2011Salient Surgical Technologies, Inc.Fluid-assisted medical devices, systems and methods
US804807011 Feb 20031 Nov 2011Salient Surgical Technologies, Inc.Fluid-assisted medical devices, systems and methods
US80520243 Dic 20108 Nov 2011Tyco Healthcare Group LpSurgical stapler with timer and feedback display
US806223621 Abr 200622 Nov 2011Tyco Healthcare Group, LpMethod and system to determine an optimal tissue compression time to implant a surgical element
US80661692 Mar 201029 Nov 2011Tyco Healthcare Group LpStructure containing wound treatment material
US807074625 May 20076 Dic 2011Tyco Healthcare Group LpRadiofrequency fusion of cardiac tissue
US807555730 Oct 200713 Dic 2011Salient Surgical Technologies, Inc.Fluid-assisted medical devices and methods
US80755582 Jul 200513 Dic 2011Surgrx, Inc.Electrosurgical instrument and method
US809249320 Jul 201110 Ene 2012Tyco Healthcare Group LpSurgical stapling apparatus with powered articulation
US811340525 Ago 200914 Feb 2012Tyco Healthcare Group, LpSurgical instrument with indicator
US81134109 Feb 201114 Feb 2012Ethicon Endo-Surgery, Inc.Surgical stapling apparatus with control features
US812374329 Jul 200828 Feb 2012Covidien AgMechanism for dividing tissue in a hemostat-style instrument
US812862430 May 20066 Mar 2012Covidien AgElectrosurgical instrument that directs energy delivery and protects adjacent tissue
US81327031 Feb 201013 Mar 2012Tyco Healthcare Group, LpSurgical instrument with indicator
US813270510 Dic 201013 Mar 2012Tyco Healthcare Group LpSurgical stapler with timer and feedback display
US81424733 Oct 200827 Mar 2012Tyco Healthcare Group LpMethod of transferring rotational motion in an articulating surgical instrument
US814748917 Feb 20113 Abr 2012Covidien AgOpen vessel sealing instrument
US815715020 Oct 201117 Abr 2012Tyco Healthcare Group LpSurgical stapler with timer and feedback display
US81571534 Feb 201117 Abr 2012Ethicon Endo-Surgery, Inc.Surgical instrument with force-feedback capabilities
US816197723 Sep 200824 Abr 2012Ethicon Endo-Surgery, Inc.Accessing data stored in a memory of a surgical instrument
US816297315 Ago 200824 Abr 2012Tyco Healthcare Group LpMethod of transferring pressure in an articulating surgical instrument
US816718518 Nov 20101 May 2012Ethicon Endo-Surgery, Inc.Surgical instrument having recording capabilities
US81721244 Feb 20118 May 2012Ethicon Endo-Surgery, Inc.Surgical instrument having recording capabilities
US818183927 Jul 201122 May 2012Tyco Healthcare Group LpSurgical instruments employing sensors
US818655531 Ene 200629 May 2012Ethicon Endo-Surgery, Inc.Motor-driven surgical cutting and fastening instrument with mechanical closure system
US818656016 Oct 200929 May 2012Ethicon Endo-Surgery, Inc.Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features
US819243321 Ago 20075 Jun 2012Covidien AgVessel sealing instrument with electrical cutting mechanism
US819679513 Ago 201012 Jun 2012Ethicon Endo-Surgery, Inc.Disposable motor-driven loading unit for use with a surgical cutting and stapling apparatus
US81967963 Feb 201112 Jun 2012Ethicon Endo-Surgery, Inc.Shaft based rotary drive system for surgical instruments
US819747910 Dic 200812 Jun 2012Tyco Healthcare Group LpVessel sealer and divider
US819763315 Mar 201112 Jun 2012Covidien AgMethod for manufacturing an end effector assembly
US82017219 Mar 201119 Jun 2012Tyco Healthcare Group LpPowered surgical instrument
US82111057 May 20073 Jul 2012Covidien AgElectrosurgical instrument which reduces collateral damage to adjacent tissue
US821553017 Oct 201110 Jul 2012Tyco Healthcare Group LpSurgical instrument with indicator
US822069029 Sep 200617 Jul 2012Ethicon Endo-Surgery, Inc.Connected surgical staples and stapling instruments for deploying the same
US82405377 Dic 201114 Ago 2012Tyco Healthcare Group LpSurgical stapling apparatus with powered articulation
US82412825 Sep 200814 Ago 2012Tyco Healthcare Group LpVessel sealing cutting assemblies
US82412845 Ene 200914 Ago 2012Covidien AgVessel sealer and divider with non-conductive stop members
US825199623 Sep 200828 Ago 2012Tyco Healthcare Group LpInsulating sheath for electrosurgical forceps
US8256655 *8 Sep 20114 Sep 2012Tyco Healthcare Group LpCartridge for applying varying amounts of tissue compression
US82573527 Sep 20104 Sep 2012Covidien AgBipolar forceps having monopolar extension
US825738715 Ago 20084 Sep 2012Tyco Healthcare Group LpMethod of transferring pressure in an articulating surgical instrument
US826792413 Ene 201118 Sep 2012Tyco Healthcare Group LpPowered surgical instrument
US82679354 Abr 200718 Sep 2012Tyco Healthcare Group LpElectrosurgical instrument reducing current densities at an insulator conductor junction
US82921552 Jun 201123 Oct 2012Ethicon Endo-Surgery, Inc.Motor-driven surgical cutting and fastening instrument with tactile position feedback
US82928866 Oct 200923 Oct 2012Tyco Healthcare Group LpApparatus, system, and method for performing an electrosurgical procedure
US829822816 Sep 200830 Oct 2012Coviden AgElectrosurgical instrument which reduces collateral damage to adjacent tissue
US829823224 Mar 200930 Oct 2012Tyco Healthcare Group LpEndoscopic vessel sealer and divider for large tissue structures
US830358215 Sep 20086 Nov 2012Tyco Healthcare Group LpElectrosurgical instrument having a coated electrode utilizing an atomic layer deposition technique
US830358610 Feb 20096 Nov 2012Covidien AgSpring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument
US831707028 Feb 200727 Nov 2012Ethicon Endo-Surgery, Inc.Surgical stapling devices that produce formed staples having different lengths
US831707316 Feb 201227 Nov 2012Covidien LpSurgical instrument with indicator
US831778728 Ago 200827 Nov 2012Covidien LpTissue fusion jaw angle improvement
US832245527 Jun 20064 Dic 2012Ethicon Endo-Surgery, Inc.Manually driven surgical cutting and fastening instrument
US832258831 Oct 20114 Dic 2012Covidien LpStructure containing wound treatment material
US832882321 Mar 201111 Dic 2012Covidien LpPowered tacker instrument
US83337654 Jun 201218 Dic 2012Covidien AgVessel sealing instrument with electrical cutting mechanism
US83367516 Oct 200625 Dic 2012Covidien LpGrasping jaw mechanism
US834812521 Mar 20118 Ene 2013Covidien LpBattery powered surgical instrument
US834813129 Sep 20068 Ene 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument with mechanical indicator to show levels of tissue compression
US834894829 Jul 20108 Ene 2013Covidien AgVessel sealing system using capacitive RF dielectric heating
US836029729 Sep 200629 Ene 2013Ethicon Endo-Surgery, Inc.Surgical cutting and stapling instrument with self adjusting anvil
US836106812 Oct 201029 Ene 2013Medtronic Advanced Energy LlcFluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof
US836107128 Ago 200829 Ene 2013Covidien AgVessel sealing forceps with disposable electrodes
US836107219 Nov 201029 Ene 2013Covidien AgInsulating boot for electrosurgical forceps
US836597629 Sep 20065 Feb 2013Ethicon Endo-Surgery, Inc.Surgical staples having dissolvable, bioabsorbable or biofragmentable portions and stapling instruments for deploying the same
US836670927 Dic 20115 Feb 2013Covidien AgArticulating bipolar electrosurgical instrument
US838275426 Ene 200926 Feb 2013Covidien AgElectrosurgical forceps with slow closure sealing plates and method of sealing tissue
US838865222 Jun 20105 Mar 2013Covidien LpSurgical stapling apparatus having a wound closure material applicator assembly
US839409512 Ene 201112 Mar 2013Covidien AgInsulating boot for electrosurgical forceps
US839409611 Abr 201112 Mar 2013Covidien AgOpen vessel sealing instrument with cutting mechanism
US83979715 Feb 200919 Mar 2013Ethicon Endo-Surgery, Inc.Sterilizable surgical instrument
US84138692 Dic 20099 Abr 2013Covidien LpSurgical stapler and method
US841457719 Nov 20099 Abr 2013Ethicon Endo-Surgery, Inc.Surgical instruments and components for use in sterile environments
US841890529 Jun 201216 Abr 2013Covidien LpSurgical instrument with indicator
US841972726 Mar 201016 Abr 2013Aesculap AgImpedance mediated power delivery for electrosurgery
US841976810 Jul 201216 Abr 2013Covidien LpSurgical stapling apparatus with powered articulation
US84247368 Jun 201123 Abr 2013Covidien LpGrasping jaw mechanism
US84247404 Nov 201023 Abr 2013Ethicon Endo-Surgery, Inc.Surgical instrument having a directional switching mechanism
US842550430 Nov 201123 Abr 2013Covidien LpRadiofrequency fusion of cardiac tissue
US843087627 Ago 200930 Abr 2013Tyco Healthcare Group LpVessel sealer and divider with knife lockout
US845390614 Jul 20104 Jun 2013Ethicon Endo-Surgery, Inc.Surgical instruments with electrodes
US84546024 May 20124 Jun 2013Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US845952010 Ene 200711 Jun 2013Ethicon Endo-Surgery, Inc.Surgical instrument with wireless communication between control unit and remote sensor
US845952126 Ago 201011 Jun 2013Covidien LpPowered surgical stapling device platform
US845952514 Feb 200811 Jun 2013Ethicon Endo-Sugery, Inc.Motorized surgical cutting and fastening instrument having a magnetic drive train torque limiting device
US846033122 Abr 201111 Jun 2013Maquet Cardiovascular, LlcTissue dissector apparatus and method
US846492328 Ene 201018 Jun 2013Ethicon Endo-Surgery, Inc.Surgical stapling devices for forming staples with different formed heights
US846995621 Jul 200825 Jun 2013Covidien LpVariable resistor jaw
US84699577 Oct 200825 Jun 2013Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US847545528 Oct 20032 Jul 2013Medtronic Advanced Energy LlcFluid-assisted electrosurgical scissors and methods
US84799699 Feb 20129 Jul 2013Ethicon Endo-Surgery, Inc.Drive interface for operably coupling a manipulatable surgical tool to a robot
US848541229 Sep 200616 Jul 2013Ethicon Endo-Surgery, Inc.Surgical staples having attached drivers and stapling instruments for deploying the same
US848610720 Oct 200816 Jul 2013Covidien LpMethod of sealing tissue using radiofrequency energy
US849615614 Ago 201230 Jul 2013Covidien LpCartridge for applying varying amounts of tissue compression
US849615718 Feb 201130 Jul 2013Covidien LpTilting anvil for annular surgical stapler
US849665616 Ene 200930 Jul 2013Covidien AgTissue sealer with non-conductive variable stop members and method of sealing tissue
US849668212 Abr 201030 Jul 2013Ethicon Endo-Surgery, Inc.Electrosurgical cutting and sealing instruments with cam-actuated jaws
US849999312 Jun 20126 Ago 2013Ethicon Endo-Surgery, Inc.Surgical staple cartridge
US85057999 Abr 201213 Ago 2013Covidien LpBattery powered surgical instrument
US850580229 Feb 201213 Ago 2013Covidien LpSurgical stapler with timer and feedback display
US850655710 Jul 201213 Ago 2013Covidien LpPowered surgical instrument
US851724314 Feb 201127 Ago 2013Ethicon Endo-Surgery, Inc.Surgical instrument with wireless communication between control unit and remote sensor
US852389810 Ago 20123 Sep 2013Covidien LpEndoscopic electrosurgical jaws with offset knife
US852956616 Jul 201210 Sep 2013Covidien LpVessel sealer and divider with knife lockout
US85345281 Mar 201117 Sep 2013Ethicon Endo-Surgery, Inc.Surgical instrument having a multiple rate directional switching mechanism
US853531122 Abr 201017 Sep 2013Ethicon Endo-Surgery, Inc.Electrosurgical instrument comprising closing and firing systems
US853531225 Sep 200817 Sep 2013Covidien LpApparatus, system and method for performing an electrosurgical procedure
US854012811 Ene 200724 Sep 2013Ethicon Endo-Surgery, Inc.Surgical stapling device with a curved end effector
US854071111 Jul 200724 Sep 2013Covidien AgVessel sealer and divider
US854071229 Oct 201224 Sep 2013Covidien LpSurgical instrument configured for use with interchangeable hand grips
US855102531 Oct 20118 Oct 2013Covidien LpMethod and system to determine an optimal tissue compression time to implant a surgical element
US85510881 Abr 20098 Oct 2013Applied Medical Resources CorporationElectrosurgical system
US85510893 Nov 20098 Oct 2013Applied Medical Resources CorporationTissue fusion/welder apparatus and method
US855109130 Mar 20118 Oct 2013Covidien AgVessel sealing instrument with electrical cutting mechanism
US856187124 Nov 201022 Oct 2013Covidien LpIndicators for surgical staplers
US85625981 Abr 200922 Oct 2013Applied Medical Resources CorporationElectrosurgical system
US856765628 Mar 201129 Oct 2013Ethicon Endo-Surgery, Inc.Staple cartridges for forming staples having differing formed staple heights
US856840821 Abr 201129 Oct 2013Covidien LpSurgical forceps
US856841131 Mar 200929 Oct 2013Applied Medical Resources CorporationElectrosurgical system
US85684447 Mar 201229 Oct 2013Covidien LpMethod of transferring rotational motion in an articulating surgical instrument
US85734619 Feb 20125 Nov 2013Ethicon Endo-Surgery, Inc.Surgical stapling instruments with cam-driven staple deployment arrangements
US85734659 Feb 20125 Nov 2013Ethicon Endo-Surgery, Inc.Robotically-controlled surgical end effector system with rotary actuated closure systems
US857423022 Ene 20135 Nov 2013Covidien LpOpen vessel sealing instrument with pivot assembly
US85742319 Oct 20095 Nov 2013Ethicon Endo-Surgery, Inc.Surgical instrument for transmitting energy to tissue comprising a movable electrode or insulator
US857917710 May 201212 Nov 2013Covidien LpSurgical instruments employing sensors
US85798941 Abr 200912 Nov 2013Applied Medical Resources CorporationElectrosurgical system
US858491914 Feb 200819 Nov 2013Ethicon Endo-Sugery, Inc.Surgical stapling apparatus with load-sensitive firing mechanism
US859076229 Jun 200726 Nov 2013Ethicon Endo-Surgery, Inc.Staple cartridge cavity configurations
US859150616 Oct 201226 Nov 2013Covidien AgVessel sealing system
US85915107 Sep 201126 Nov 2013Covidien LpVessel sealing instrument with cutting mechanism
US859151122 Ene 201326 Nov 2013Covidien LpOpen vessel sealing instrument with pivot assembly
US859729631 Ago 20123 Dic 2013Covidien AgBipolar forceps having monopolar extension
US859729729 Ago 20063 Dic 2013Covidien AgVessel sealing instrument with multiple electrode configurations
US86022871 Jun 201210 Dic 2013Ethicon Endo-Surgery, Inc.Motor driven surgical cutting instrument
US86022889 Feb 201210 Dic 2013Ethicon Endo-Surgery. Inc.Robotically-controlled motorized surgical end effector system with rotary actuated closure systems having variable actuation speeds
US860804510 Oct 200817 Dic 2013Ethicon Endo-Sugery, Inc.Powered surgical cutting and stapling apparatus with manually retractable firing system
US8613383 *14 Jul 201024 Dic 2013Ethicon Endo-Surgery, Inc.Surgical instruments with electrodes
US861642914 Nov 201231 Dic 2013Covidien LpStructure containing wound treatment material
US86164319 Feb 201231 Dic 2013Ethicon Endo-Surgery, Inc.Shiftable drive interface for robotically-controlled surgical tool
US862227414 Feb 20087 Ene 2014Ethicon Endo-Surgery, Inc.Motorized cutting and fastening instrument having control circuit for optimizing battery usage
US862301723 Jul 20097 Ene 2014Covidien AgOpen vessel sealing instrument with hourglass cutting mechanism and overratchet safety
US86232769 Feb 20097 Ene 2014Covidien LpMethod and system for sterilizing an electrosurgical instrument
US862852926 Oct 201014 Ene 2014Ethicon Endo-Surgery, Inc.Surgical instrument with magnetic clamping force
US862855711 Jul 201114 Ene 2014Covidien LpSurgical forceps
US86361873 Feb 201128 Ene 2014Ethicon Endo-Surgery, Inc.Surgical stapling systems that produce formed staples having different lengths
US863673614 Feb 200828 Ene 2014Ethicon Endo-Surgery, Inc.Motorized surgical cutting and fastening instrument
US86367619 Oct 200828 Ene 2014Covidien LpApparatus, system, and method for performing an endoscopic electrosurgical procedure
US864171315 Sep 20104 Feb 2014Covidien AgFlexible endoscopic catheter with ligasure
US864734127 Oct 200611 Feb 2014Covidien AgVessel sealer and divider for use with small trocars and cannulas
US865717414 Feb 200825 Feb 2014Ethicon Endo-Surgery, Inc.Motorized surgical cutting and fastening instrument having handle based power source
US86571789 Ene 201325 Feb 2014Ethicon Endo-Surgery, Inc.Surgical stapling apparatus
US866813024 May 201211 Mar 2014Ethicon Endo-Surgery, Inc.Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features
US866868919 Abr 201011 Mar 2014Covidien AgIn-line vessel sealer and divider
US86722085 Mar 201018 Mar 2014Ethicon Endo-Surgery, Inc.Surgical stapling instrument having a releasable buttress material
US867909813 Sep 201125 Mar 2014Covidien LpRotation knobs for surgical instruments
US867911423 Abr 201025 Mar 2014Covidien AgIncorporating rapid cooling in tissue fusion heating processes
US867914030 May 201225 Mar 2014Covidien LpSurgical clamping device with ratcheting grip lock
US868424725 Jul 20111 Abr 2014Covidien LpGrasping jaw mechanism
US868425327 May 20111 Abr 2014Ethicon Endo-Surgery, Inc.Surgical instrument with wireless communication between a control unit of a robotic system and remote sensor
US86850049 Jul 20131 Abr 2014Covidien LpPowered surgical instrument
US868500916 May 20111 Abr 2014Covidien LpThread-like knife for tissue cutting
US868505618 Ago 20111 Abr 2014Covidien LpSurgical forceps
US86966626 Feb 200715 Abr 2014Aesculap AgElectrocautery method and apparatus
US86966679 Ago 201215 Abr 2014Covidien LpDual durometer insulating boot for electrosurgical forceps
US87027378 Ago 201122 Abr 2014Covidien LpSurgical forceps
US87027499 Jun 201122 Abr 2014Covidien LpLever latch assemblies for vessel sealer and divider
US870821331 Ene 200629 Abr 2014Ethicon Endo-Surgery, Inc.Surgical instrument having a feedback system
US871443024 Nov 20106 May 2014Covidien LpIndicator for surgical stapler
US87152778 Dic 20106 May 2014Ethicon Endo-Surgery, Inc.Control of jaw compression in surgical instrument having end effector with opposing jaw members
US872076629 Sep 200613 May 2014Ethicon Endo-Surgery, Inc.Surgical stapling instruments and staples
US87280726 Feb 200720 May 2014Aesculap AgElectrocautery method and apparatus
US873444319 Sep 200827 May 2014Covidien LpVessel sealer and divider for large tissue structures
US874090120 Ene 20103 Jun 2014Covidien AgVessel sealing instrument with electrical cutting mechanism
US874584011 Jul 201110 Jun 2014Covidien LpSurgical forceps and method of manufacturing thereof
US87465292 Dic 201110 Jun 2014Ethicon Endo-Surgery, Inc.Accessing data stored in a memory of a surgical instrument
US874653028 Sep 201210 Jun 2014Ethicon Endo-Surgery, Inc.Surgical instrument with wireless communication between control unit and remote sensor
US874723828 Jun 201210 Jun 2014Ethicon Endo-Surgery, Inc.Rotary drive shaft assemblies for surgical instruments with articulatable end effectors
US87474049 Oct 200910 Jun 2014Ethicon Endo-Surgery, Inc.Surgical instrument for transmitting energy to tissue comprising non-conductive grasping portions
US874743420 Feb 201210 Jun 2014Covidien LpKnife deployment mechanisms for surgical forceps
US87522646 Mar 201217 Jun 2014Covidien LpSurgical tissue sealer
US875274720 Mar 201217 Jun 2014Ethicon Endo-Surgery, Inc.Surgical instrument having recording capabilities
US875274927 May 201117 Jun 2014Ethicon Endo-Surgery, Inc.Robotically-controlled disposable motor-driven loading unit
US875333810 Jun 201017 Jun 2014Ethicon Endo-Surgery, Inc.Electrosurgical instrument employing a thermal management system
US875678529 Sep 201124 Jun 2014Covidien LpSurgical instrument shafts and methods of manufacturing shafts for surgical instruments
US87638756 Mar 20131 Jul 2014Ethicon Endo-Surgery, Inc.End effector for use with a surgical fastening instrument
US87638791 Mar 20111 Jul 2014Ethicon Endo-Surgery, Inc.Accessing data stored in a memory of surgical instrument
US876474710 Jun 20101 Jul 2014Ethicon Endo-Surgery, Inc.Electrosurgical instrument comprising sequentially activated electrodes
US876474828 Ene 20091 Jul 2014Covidien LpEnd effector assembly for electrosurgical device and method for making the same
US87647498 Ene 20131 Jul 2014CovidienJaw closure detection system
US87835419 Feb 201222 Jul 2014Frederick E. Shelton, IVRobotically-controlled surgical end effector system
US878441728 Ago 200822 Jul 2014Covidien LpTissue fusion jaw angle improvement
US878974123 Sep 201129 Jul 2014Ethicon Endo-Surgery, Inc.Surgical instrument with trigger assembly for generating multiple actuation motions
US879527428 Ago 20085 Ago 2014Covidien LpTissue fusion jaw angle improvement
US880083713 Abr 200712 Ago 2014Covidien LpPowered surgical instrument
US88008389 Feb 201212 Ago 2014Ethicon Endo-Surgery, Inc.Robotically-controlled cable-based surgical end effectors
US880083918 Oct 201312 Ago 2014Covidien LpSurgical instruments employing sensors
US880832519 Nov 201219 Ago 2014Ethicon Endo-Surgery, Inc.Surgical stapling instrument with staples having crown features for increasing formed staple footprint
US88206031 Mar 20112 Sep 2014Ethicon Endo-Surgery, Inc.Accessing data stored in a memory of a surgical instrument
US88206059 Feb 20122 Sep 2014Ethicon Endo-Surgery, Inc.Robotically-controlled surgical instruments
US88215144 May 20102 Sep 2014Covidien LpPowered tack applier
US882713311 Ene 20079 Sep 2014Ethicon Endo-Surgery, Inc.Surgical stapling device having supports for a flexible drive mechanism
US882799219 Oct 20109 Sep 2014Aesculap AgImpedance mediated control of power delivery for electrosurgery
US883451812 Abr 201016 Sep 2014Ethicon Endo-Surgery, Inc.Electrosurgical cutting and sealing instruments with cam-actuated jaws
US88406033 Jun 201023 Sep 2014Ethicon Endo-Surgery, Inc.Surgical instrument with wireless communication between control unit and sensor transponders
US88447899 Feb 201230 Sep 2014Ethicon Endo-Surgery, Inc.Automated end effector component reloading system for use with a robotic system
US884563616 Sep 201130 Sep 2014Covidien LpSeal plate with insulation displacement connection
US885218519 May 20117 Oct 2014Covidien LpApparatus for performing an electrosurgical procedure
US88521869 Ago 20117 Oct 2014Covidien LpMicrowave sensing for tissue sealing
US88522288 Feb 20127 Oct 2014Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US88585544 Jun 201314 Oct 2014Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US886475313 Dic 201121 Oct 2014Covidien LpSurgical Forceps Connected to Treatment Light Source
US88647953 Oct 201121 Oct 2014Covidien LpSurgical forceps
US887086723 Mar 201128 Oct 2014Aesculap AgArticulable electrosurgical instrument with a stabilizable articulation actuator
US88759706 Dic 20134 Nov 2014Covidien LpStructure containing wound treatment material
US888276624 Ene 200611 Nov 2014Covidien AgMethod and system for controlling delivery of energy to divide tissue
US888737324 Feb 201218 Nov 2014Covidien LpVessel sealing instrument with reduced thermal spread and method of manufacture therefor
US888877028 Abr 201118 Nov 2014Aesculap AgApparatus for tissue cauterization
US88887769 Jun 201018 Nov 2014Ethicon Endo-Surgery, Inc.Electrosurgical instrument employing an electrode
US889394923 Sep 201125 Nov 2014Ethicon Endo-Surgery, Inc.Surgical stapler with floating anvil
US889888826 Ene 20122 Dic 2014Covidien LpSystem for manufacturing electrosurgical seal plates
US88994655 Mar 20132 Dic 2014Ethicon Endo-Surgery, Inc.Staple cartridge comprising drivers for deploying a plurality of staples
US89001643 Sep 20132 Dic 2014Covidien LpMethod and system to determine an optimal tissue compression time to implant a surgical element
US89060169 Oct 20099 Dic 2014Ethicon Endo-Surgery, Inc.Surgical instrument for transmitting energy to tissue comprising steam control paths
US891147114 Sep 201216 Dic 2014Ethicon Endo-Surgery, Inc.Articulatable surgical device
US89159101 Abr 200923 Dic 2014Applied Medical Resources CorporationElectrosurgical system
US89204611 May 201230 Dic 2014Covidien LpSurgical forceps with bifurcated flanged jaw components
US89257838 May 20126 Ene 2015Covidien LpPowered surgical instrument
US89257883 Mar 20146 Ene 2015Ethicon Endo-Surgery, Inc.End effectors for surgical stapling instruments
US893168227 May 201113 Ene 2015Ethicon Endo-Surgery, Inc.Robotically-controlled shaft based rotary drive systems for surgical instruments
US89399726 May 201127 Ene 2015Covidien LpSurgical forceps
US893997327 Nov 201327 Ene 2015Covidien AgSingle action tissue sealer
US89399749 Oct 200927 Ene 2015Ethicon Endo-Surgery, Inc.Surgical instrument comprising first and second drive systems actuatable by a common trigger mechanism
US893997515 Mar 201327 Ene 2015Covidien LpGap control via overmold teeth and hard stops
US894512510 Sep 20103 Feb 2015Covidien AgCompressible jaw configuration with bipolar RF output electrodes for soft tissue fusion
US894512627 Nov 20133 Feb 2015Covidien AgSingle action tissue sealer
US894512723 Ene 20143 Feb 2015Covidien AgSingle action tissue sealer
US896151325 Ene 201224 Feb 2015Covidien LpSurgical tissue sealer
US89615146 Mar 201224 Feb 2015Covidien LpArticulating surgical apparatus
US896151528 Sep 201124 Feb 2015Covidien LpElectrosurgical instrument
US89674448 Ago 20143 Mar 2015Covidien LpSurgical instruments employing sensors
US896821730 Jul 20143 Mar 2015Covidien LpMethod and system to determine an optimal tissue compression time to implant a surgical element
US896828319 May 20113 Mar 2015Covidien LpUltrasound device for precise tissue sealing and blade-less cutting
US896829815 Mar 20123 Mar 2015Covidien LpElectrosurgical instrument
US89683069 Ago 20113 Mar 2015Covidien LpSurgical forceps
US896830718 Ago 20113 Mar 2015Covidien LpSurgical forceps
US896830820 Oct 20113 Mar 2015Covidien LpMulti-circuit seal plates
US896830910 Nov 20113 Mar 2015Covidien LpSurgical forceps
US896831030 Nov 20113 Mar 2015Covidien LpElectrosurgical instrument with a knife blade lockout mechanism
US89683111 May 20123 Mar 2015Covidien LpSurgical instrument with stamped double-flag jaws and actuation mechanism
US896831313 Mar 20133 Mar 2015Covidien LpElectrosurgical instrument with a knife blade stop
US896831425 Sep 20083 Mar 2015Covidien LpApparatus, system and method for performing an electrosurgical procedure
US896831718 Ago 20113 Mar 2015Covidien LpSurgical forceps
US896836025 Ene 20123 Mar 2015Covidien LpSurgical instrument with resilient driving member and related methods of use
US897380418 Mar 201410 Mar 2015Ethicon Endo-Surgery, Inc.Cartridge assembly having a buttressing member
US897895429 Abr 201117 Mar 2015Ethicon Endo-Surgery, Inc.Staple cartridge comprising an adjustable distal portion
US897984323 Jul 201017 Mar 2015Ethicon Endo-Surgery, Inc.Electrosurgical cutting and sealing instrument
US898542813 Mar 201424 Mar 2015Covidien LpIndicator for surgical stapler
US898633510 Jun 201324 Mar 2015Maquet Cardiovascular LlcTissue dissector apparatus and method
US899167629 Jun 200731 Mar 2015Ethicon Endo-Surgery, Inc.Surgical staple having a slidable crown
US899167721 May 201431 Mar 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US899242227 May 201131 Mar 2015Ethicon Endo-Surgery, Inc.Robotically-controlled endoscopic accessory channel
US8992526 *12 Jul 200531 Mar 2015Erbe Elektromedizin GmbhSurgical instrument
US899805820 May 20147 Abr 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US900519910 Jun 201014 Abr 2015Ethicon Endo-Surgery, Inc.Heat management configurations for controlling heat dissipation from electrosurgical instruments
US900523018 Ene 201314 Abr 2015Ethicon Endo-Surgery, Inc.Motorized surgical instrument
US901143524 Feb 201221 Abr 2015Covidien LpMethod for manufacturing vessel sealing instrument with reduced thermal spread
US901143615 Mar 201321 Abr 2015Covidien LpDouble-length jaw system for electrosurgical instrument
US901143723 Jul 201021 Abr 2015Ethicon Endo-Surgery, Inc.Electrosurgical cutting and sealing instrument
US90230356 Ene 20125 May 2015Covidien LpMonopolar pencil with integrated bipolar/ligasure tweezers
US902304323 Sep 20085 May 2015Covidien LpInsulating mechanically-interfaced boot and jaws for electrosurgical forceps
US902423729 Sep 20095 May 2015Covidien LpMaterial fusing apparatus, system and method of use
US902849218 Ago 201112 May 2015Covidien LpSurgical instruments with removable components
US90284938 Mar 201212 May 2015Covidien LpIn vivo attachable and detachable end effector assembly and laparoscopic surgical instrument and methods therefor
US902849428 Jun 201212 May 2015Ethicon Endo-Surgery, Inc.Interchangeable end effector coupling arrangement
US90285197 Feb 201112 May 2015Ethicon Endo-Surgery, Inc.Motorized surgical instrument
US90339818 Jun 201219 May 2015Covidien LpVessel sealer and divider
US90340091 May 201219 May 2015Covidien LpSurgical forceps
US903969129 Jun 201226 May 2015Covidien LpSurgical forceps
US903970422 Jun 201126 May 2015Covidien LpForceps
US90397318 May 201226 May 2015Covidien LpSurgical forceps including blade safety mechanism
US903973211 Jul 201126 May 2015Covidien LpSurgical forceps
US904423013 Feb 20122 Jun 2015Ethicon Endo-Surgery, Inc.Surgical cutting and fastening instrument with apparatus for determining cartridge and firing motion status
US904424330 Ago 20112 Jun 2015Ethcon Endo-Surgery, Inc.Surgical cutting and fastening device with descendible second trigger arrangement
US905008323 Sep 20089 Jun 2015Ethicon Endo-Surgery, Inc.Motorized surgical instrument
US905008423 Sep 20119 Jun 2015Ethicon Endo-Surgery, Inc.Staple cartridge including collapsible deck arrangement
US905594123 Sep 201116 Jun 2015Ethicon Endo-Surgery, Inc.Staple cartridge including collapsible deck
US906077027 May 201123 Jun 2015Ethicon Endo-Surgery, Inc.Robotically-driven surgical instrument with E-beam driver
US906078029 Sep 201123 Jun 2015Covidien LpMethods of manufacturing shafts for surgical instruments
US907251525 Jun 20147 Jul 2015Ethicon Endo-Surgery, Inc.Surgical stapling apparatus
US907252429 Jun 20127 Jul 2015Covidien LpSurgical forceps
US907253527 May 20117 Jul 2015Ethicon Endo-Surgery, Inc.Surgical stapling instruments with rotatable staple deployment arrangements
US907253628 Jun 20127 Jul 2015Ethicon Endo-Surgery, Inc.Differential locking arrangements for rotary powered surgical instruments
US908460115 Mar 201321 Jul 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US90846089 Jun 201421 Jul 2015Covidien LpKnife deployment mechanisms for surgical forceps
US909533919 May 20144 Ago 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US909534718 Sep 20084 Ago 2015Covidien AgElectrically conductive/insulative over shoe for tissue fusion
US910135815 Jun 201211 Ago 2015Ethicon Endo-Surgery, Inc.Articulatable surgical instrument comprising a firing drive
US910138528 Jun 201211 Ago 2015Ethicon Endo-Surgery, Inc.Electrode connections for rotary driven surgical tools
US910767219 Jul 200618 Ago 2015Covidien AgVessel sealing forceps with disposable electrodes
US911387228 Ene 201325 Ago 2015Covidien LpSurgical stapling apparatus having a wound closure material applicator assembly
US911387424 Jun 201425 Ago 2015Ethicon Endo-Surgery, Inc.Surgical instrument system
US911387611 Dic 201425 Ago 2015Covidien LpPowered surgical instrument
US911388223 Ene 201225 Ago 2015Covidien LpMethod of manufacturing an electrosurgical instrument
US911389715 Ene 201325 Ago 2015Covidien LpPartitioned surgical instrument
US91138989 Sep 201125 Ago 2015Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US911389929 Nov 201125 Ago 2015Covidien LpCoupling mechanisms for surgical instruments
US911390114 May 201225 Ago 2015Covidien LpModular surgical instrument with contained electrical or mechanical systems
US911390329 Oct 201225 Ago 2015Covidien LpEndoscopic vessel sealer and divider for large tissue structures
US911390520 Jun 201325 Ago 2015Covidien LpVariable resistor jaw
US91139062 Jul 201325 Ago 2015Covidien LpCompact jaw including split pivot pin
US911390721 Nov 201325 Ago 2015Covidien LpVessel sealing instrument with cutting mechanism
US911390830 Sep 201425 Ago 2015Covidien LpSeal plate with insulation displacement connection
US91139091 Sep 201125 Ago 2015Covidien LpSurgical vessel sealer and divider
US911393316 May 201125 Ago 2015Covidien LpOptical energy-based methods and apparatus for tissue sealing
US911393416 May 201125 Ago 2015Covidien LpOptical energy-based methods and apparatus for tissue sealing
US911393713 Ene 201425 Ago 2015Covidien LpSurgical forceps
US91139389 Sep 201125 Ago 2015Covidien LpApparatus for performing electrosurgical procedures having a spring mechanism associated with the jaw members
US911394022 Feb 201225 Ago 2015Covidien LpTrigger lockout and kickback mechanism for surgical instruments
US911394110 Abr 201325 Ago 2015Covidien LpVessel sealer and divider with knife lockout
US911963028 Oct 20131 Sep 2015Covidien LpSurgical forceps
US911965728 Jun 20121 Sep 2015Ethicon Endo-Surgery, Inc.Rotary actuatable closure arrangement for surgical end effector
US912566228 Jun 20128 Sep 2015Ethicon Endo-Surgery, Inc.Multi-axis articulating and rotating surgical tools
US913822526 Feb 201322 Sep 2015Ethicon Endo-Surgery, Inc.Surgical stapling instrument with an articulatable end effector
US914927417 Feb 20116 Oct 2015Ethicon Endo-Surgery, Inc.Articulating endoscopic accessory channel
US914932325 Ene 20106 Oct 2015Covidien AgMethod of fusing biomaterials with radiofrequency energy
US914932629 May 20136 Oct 2015Ethicon Endo-Surgery, Inc.Electrosurgical instrument and method
US916180618 Nov 201420 Oct 2015Covidien LpVessel sealing instrument with reduced thermal spread and method of manufacture therefor
US916180723 May 201120 Oct 2015Covidien LpApparatus for performing an electrosurgical procedure
US916805229 Mar 201327 Oct 2015Covidien LpApparatus for performing an electrosurgical procedure
US916808820 Feb 201527 Oct 2015Covidien LpSurgical forceps
US917369818 May 20113 Nov 2015Aesculap AgElectrosurgical tissue sealing augmented with a seal-enhancing composition
US917991123 May 201410 Nov 2015Ethicon Endo-Surgery, Inc.End effector for use with a surgical fastening instrument
US917991227 May 201110 Nov 2015Ethicon Endo-Surgery, Inc.Robotically-controlled motorized surgical cutting and fastening instrument
US918614325 Jun 201417 Nov 2015Ethicon Endo-Surgery, Inc.Robotically-controlled shaft based rotary drive systems for surgical instruments
US918620624 Feb 201517 Nov 2015Covidien LpElectrosurgical instrument
US919238115 Mar 201324 Nov 2015Covidien LpSurgical stapling apparatus with powered articulation
US919242115 Mar 201324 Nov 2015Covidien LpBlade lockout mechanism for surgical forceps
US919243123 Jul 201024 Nov 2015Ethicon Endo-Surgery, Inc.Electrosurgical cutting and sealing instrument
US919243229 May 201224 Nov 2015Covidien LpLever latch assemblies for surgical improvements
US919243322 Jul 201324 Nov 2015Covidien LpApparatus for performing an electrosurgical procedure
US919243422 Dic 201424 Nov 2015Covidien LpGap control via overmold teeth and hard stops
US919865923 Ene 20151 Dic 2015Covidien LpSurgical instruments employing sensors
US919866226 Jun 20121 Dic 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator having improved visibility
US91987172 Feb 20151 Dic 2015Covidien AgSingle action tissue sealer
US920487814 Ago 20148 Dic 2015Ethicon Endo-Surgery, Inc.Surgical stapling apparatus with interlockable firing system
US920488028 Mar 20128 Dic 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising capsules defining a low pressure environment
US920491921 Abr 20158 Dic 2015Covidien LpVessel sealing instrument with reduced thermal spread and method of manufacturing therefor
US920492411 Jun 20138 Dic 2015Covidien LpEndoscopic vessel sealer and divider having a flexible articulating shaft
US921112028 Mar 201215 Dic 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising a plurality of medicaments
US921112113 Ene 201515 Dic 2015Ethicon Endo-Surgery, Inc.Surgical stapling apparatus
US92116575 Jun 201415 Dic 2015Covidien LpSurgical tissue sealer
US921601923 Sep 201122 Dic 2015Ethicon Endo-Surgery, Inc.Surgical stapler with stationary staple drivers
US922050028 Mar 201229 Dic 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising structure to produce a resilient load
US922050128 Mar 201229 Dic 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensators
US922675128 Jun 20125 Ene 2016Ethicon Endo-Surgery, Inc.Surgical instrument system including replaceable end effectors
US923294128 Mar 201212 Ene 2016Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising a reservoir
US923789127 May 201119 Ene 2016Ethicon Endo-Surgery, Inc.Robotically-controlled surgical stapling devices that produce formed staples having different lengths
US924171228 Jul 201526 Ene 2016Covidien LpPowered surgical instrument
US924171428 Mar 201226 Ene 2016Ethicon Endo-Surgery, Inc.Tissue thickness compensator and method for making the same
US924798821 Jul 20152 Feb 2016Covidien LpVariable resistor jaw
US925926522 Jul 201116 Feb 2016Ethicon Endo-Surgery, LlcSurgical instruments for tensioning tissue
US92592667 Ene 201416 Feb 2016Covidien LpMethod and system for sterilizing an electrosurgical instrument
US92592686 Dic 201116 Feb 2016Covidien LpVessel sealing using microwave energy
US92655522 Dic 201423 Feb 2016Covidien LpMethod of manufacturing electrosurgical seal plates
US926556529 Nov 201123 Feb 2016Covidien LpOpen vessel sealing instrument and method of manufacturing the same
US92655661 Oct 201323 Feb 2016Covidien LpSurgical instrument
US926556816 May 201123 Feb 2016Coviden LpDestruction of vessel walls for energy-based vessel sealing enhancement
US926556929 Mar 201223 Feb 2016Covidien LpMethod of manufacturing an electrosurgical forceps
US926557119 May 201523 Feb 2016Covidien LpSurgical forceps
US92659268 Nov 201323 Feb 2016Ethicon Endo-Surgery, LlcElectrosurgical devices
US927179925 Jun 20141 Mar 2016Ethicon Endo-Surgery, LlcRobotic surgical system with removable motor housing
US92724068 Feb 20131 Mar 2016Ethicon Endo-Surgery, LlcFastener cartridge comprising a cutting member for releasing a tissue thickness compensator
US927791928 Mar 20128 Mar 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising fibers to produce a resilient load
US927796225 Mar 20118 Mar 2016Aesculap AgImpedance mediated control of power delivery for electrosurgery
US92829628 Feb 201315 Mar 2016Ethicon Endo-Surgery, LlcAdhesive film laminate
US92829667 Feb 201415 Mar 2016Ethicon Endo-Surgery, Inc.Surgical stapling instrument
US928297428 Jun 201215 Mar 2016Ethicon Endo-Surgery, LlcEmpty clip cartridge lockout
US928302723 Oct 201215 Mar 2016Ethicon Endo-Surgery, LlcBattery drain kill feature in a battery powered device
US928305423 Ago 201315 Mar 2016Ethicon Endo-Surgery, LlcInteractive displays
US928920615 Dic 201422 Mar 2016Ethicon Endo-Surgery, LlcLateral securement members for surgical staple cartridges
US928921217 Sep 201022 Mar 2016Ethicon Endo-Surgery, Inc.Surgical instruments and batteries for surgical instruments
US928922522 Jun 201022 Mar 2016Ethicon Endo-Surgery, LlcEndoscopic surgical instrument with a handle that can articulate with respect to the shaft
US928925628 Jun 201222 Mar 2016Ethicon Endo-Surgery, LlcSurgical end effectors having angled tissue-contacting surfaces
US929551430 Ago 201329 Mar 2016Ethicon Endo-Surgery, LlcSurgical devices with close quarter articulation features
US930175228 Mar 20125 Abr 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising a plurality of capsules
US930175328 Mar 20125 Abr 2016Ethicon Endo-Surgery, LlcExpandable tissue thickness compensator
US93017599 Feb 20125 Abr 2016Ethicon Endo-Surgery, LlcRobotically-controlled surgical instrument with selectively articulatable end effector
US930179725 Sep 20125 Abr 2016Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US93017988 Jul 20135 Abr 2016Covidien LpSurgical forceps including reposable end effector assemblies
US930796525 Jun 201212 Abr 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorporating an anti-microbial agent
US93079861 Mar 201312 Abr 2016Ethicon Endo-Surgery, LlcSurgical instrument soft stop
US930798828 Oct 201312 Abr 2016Ethicon Endo-Surgery, LlcStaple cartridges for forming staples having differing formed staple heights
US930798926 Jun 201212 Abr 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorportating a hydrophobic agent
US93080123 Feb 201512 Abr 2016Covidien LpArticulating surgical apparatus
US931424625 Jun 201219 Abr 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorporating an anti-inflammatory agent
US931424726 Jun 201219 Abr 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorporating a hydrophilic agent
US931429223 Oct 201219 Abr 2016Ethicon Endo-Surgery, LlcTrigger lockout mechanism
US931429520 Oct 201119 Abr 2016Covidien LpDissection scissors on surgical device
US931429723 Ene 201519 Abr 2016Covidien LpElectrosurgical instrument with a knife blade stop
US931869114 May 201319 Abr 2016Covidien LpMethod of constructing a jaw member for an end effector assembly
US932051825 Jun 201226 Abr 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorporating an oxygen generating agent
US932052019 Ago 201526 Abr 2016Ethicon Endo-Surgery, Inc.Surgical instrument system
US932052129 Oct 201226 Abr 2016Ethicon Endo-Surgery, LlcSurgical instrument
US932052328 Mar 201226 Abr 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising tissue ingrowth features
US93205636 Feb 201226 Abr 2016Applied Medical Resources CorporationElectrosurgical instruments and connections thereto
US93267671 Mar 20133 May 2016Ethicon Endo-Surgery, LlcJoystick switch assemblies for surgical instruments
US932676812 Mar 20133 May 2016Ethicon Endo-Surgery, LlcStaple cartridges for forming staples having differing formed staple heights
US93267696 Mar 20133 May 2016Ethicon Endo-Surgery, LlcSurgical instrument
US93267706 Mar 20133 May 2016Ethicon Endo-Surgery, LlcSurgical instrument
US933297428 Mar 201210 May 2016Ethicon Endo-Surgery, LlcLayered tissue thickness compensator
US933298427 Mar 201310 May 2016Ethicon Endo-Surgery, LlcFastener cartridge assemblies
US933298714 Mar 201310 May 2016Ethicon Endo-Surgery, LlcControl arrangements for a drive member of a surgical instrument
US933302523 Oct 201210 May 2016Ethicon Endo-Surgery, LlcBattery initialization clip
US933302816 Abr 201510 May 2016Covidien LpDouble-length jaw system for electrosurgical instrument
US933932315 May 200817 May 2016Aesculap AgElectrocautery method and apparatus
US933932728 Jun 201217 May 2016Aesculap AgElectrosurgical tissue dissecting device
US934547725 Jun 201224 May 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator comprising incorporating a hemostatic agent
US934548113 Mar 201324 May 2016Ethicon Endo-Surgery, LlcStaple cartridge tissue thickness sensor system
US93455348 Mar 201224 May 2016Covidien LpVessel sealing instrument
US934553514 Oct 201424 May 2016Covidien LpApparatus, system and method for performing an electrosurgical procedure
US934553622 Dic 201424 May 2016Covidien LpSurgical forceps with bifurcated flanged jaw components
US935172614 Mar 201331 May 2016Ethicon Endo-Surgery, LlcArticulation control system for articulatable surgical instruments
US935172714 Mar 201331 May 2016Ethicon Endo-Surgery, LlcDrive train control arrangements for modular surgical instruments
US935173028 Mar 201231 May 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising channels
US93580031 Mar 20137 Jun 2016Ethicon Endo-Surgery, LlcElectromechanical surgical device with signal relay arrangement
US935800522 Jun 20157 Jun 2016Ethicon Endo-Surgery, LlcEnd effector layer including holding features
US935802826 May 20157 Jun 2016Covidien LpSurgical forceps
US935806921 Oct 20147 Jun 2016Covidien LpSurgical forceps
US936421829 Nov 201214 Jun 2016Covidien LpGrasping jaw mechanism
US93642228 May 201314 Jun 2016Covidien LpPowered surgical stapling device platform
US936422515 Jul 201314 Jun 2016Covidien LpCartridge for applying varying amounts of tissue compression
US936423028 Jun 201214 Jun 2016Ethicon Endo-Surgery, LlcSurgical stapling instruments with rotary joint assemblies
US936423328 Mar 201214 Jun 2016Ethicon Endo-Surgery, LlcTissue thickness compensators for circular surgical staplers
US937035819 Oct 201221 Jun 2016Ethicon Endo-Surgery, LlcMotor-driven surgical cutting and fastening instrument with tactile position feedback
US937036111 Jul 201321 Jun 2016Covidien LpSurgical stapler with timer and feedback display
US93703645 Mar 201321 Jun 2016Ethicon Endo-Surgery, LlcPowered surgical cutting and stapling apparatus with manually retractable firing system
US93752057 Oct 201328 Jun 2016Covidien LpDeployment mechanisms for surgical instruments
US937523210 Mar 201428 Jun 2016Ethicon Endo-Surgery, LlcSurgical cutting and sealing instrument with reduced firing force
US937524522 Oct 201528 Jun 2016Covidien LpSurgical forceps
US937525425 Sep 200828 Jun 2016Covidien LpSeal and separate algorithm
US93752566 Dic 201328 Jun 2016Covidien LpElectrosurgical forceps
US93752588 May 201228 Jun 2016Covidien LpSurgical forceps
US937525915 Oct 201328 Jun 2016Covidien LpElectrosurgical instrument including an adhesive applicator assembly
US937526014 Nov 201328 Jun 2016Covidien LpSurgical instrument with non-contact electrical coupling
US93752629 Dic 201328 Jun 2016Covidien LpLimited use medical devices
US937526323 Ene 201528 Jun 2016Covidien LpSurgical instrument with stamped double-flange jaws and actuation mechanism
US93752643 Mar 201528 Jun 2016Covidien LpMulti-circuit seal plates
US937526627 Oct 201528 Jun 2016Covidien LpElectrosurgical instrument
US937526730 Abr 201328 Jun 2016Covidien LpApparatus for performing an electrosurgical procedure
US93752705 Nov 201328 Jun 2016Covidien AgVessel sealing system
US93752715 Nov 201328 Jun 2016Covidien AgVessel sealing system
US937528226 Mar 201228 Jun 2016Covidien LpLight energy sealing, cutting and sensing surgical device
US938698327 May 201112 Jul 2016Ethicon Endo-Surgery, LlcRobotically-controlled motorized surgical instrument
US93869848 Feb 201312 Jul 2016Ethicon Endo-Surgery, LlcStaple cartridge comprising a releasable cover
US938698828 Mar 201212 Jul 2016Ethicon End-Surgery, LLCRetainer assembly including a tissue thickness compensator
US939301414 Mar 201319 Jul 2016Covidien LpSurgical instrument with indicator
US939301510 May 201319 Jul 2016Ethicon Endo-Surgery, LlcMotor driven surgical fastener device with cutting member reversing mechanism
US939301628 Mar 201319 Jul 2016Covidien LpGrasping jaw mechanism
US93989111 Mar 201326 Jul 2016Ethicon Endo-Surgery, LlcRotary powered surgical instruments with multiple degrees of freedom
US940262618 Jul 20122 Ago 2016Ethicon Endo-Surgery, LlcRotary actuatable surgical fastener and cutter
US940268528 Jul 20152 Ago 2016Covidien LpOptical energy-based methods and apparatus for tissue sealing
US940860428 Feb 20149 Ago 2016Ethicon Endo-Surgery, LlcSurgical instrument comprising a firing system including a compliant portion
US940860628 Jun 20129 Ago 2016Ethicon Endo-Surgery, LlcRobotically powered surgical device with manually-actuatable reversing system
US940866017 Ene 20149 Ago 2016Ethicon Endo-Surgery, LlcDevice trigger dampening mechanism
US941483828 Mar 201216 Ago 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprised of a plurality of materials
US941488023 Oct 201216 Ago 2016Ethicon Endo-Surgery, LlcUser interface in a battery powered device
US942106023 Oct 201223 Ago 2016Ethicon Endo-Surgery, LlcLitz wire battery powered device
US943341928 Mar 20126 Sep 2016Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising a plurality of layers
US94334614 Sep 20136 Sep 2016Covidien LpInstruments, systems, and methods for sealing tissue structures
US943964912 Dic 201213 Sep 2016Ethicon Endo-Surgery, LlcSurgical instrument having force feedback capabilities
US943971118 Sep 201313 Sep 2016Covidien LpMedical devices for thermally treating tissue
US943971715 Abr 201413 Sep 2016Covidien LpSurgical forceps including thermal spread control
US944581323 Ago 201320 Sep 2016Ethicon Endo-Surgery, LlcClosure indicator systems for surgical instruments
US94458654 Jun 201420 Sep 2016Covidien LpElectrosurgical instrument with end-effector assembly including electrically-conductive, tissue-engaging surfaces and switchable bipolar electrodes
US94519585 Ago 201327 Sep 2016Ethicon Endo-Surgery, LlcSurgical instrument with firing actuator lockout
US945196225 Jul 201327 Sep 2016Covidien LpTilting anvil for annular surgical stapler
US945686313 Dic 20134 Oct 2016Covidien LpSurgical instrument with switch activation control
US94568643 Feb 20144 Oct 2016Ethicon Endo-Surgery, LlcSurgical instruments and end effectors therefor
US945687016 May 20114 Oct 2016Covidien LpOptical energy-based methods and apparatus for tissue sealing
US94630675 Nov 201311 Oct 2016Covidien AgVessel sealing system
US94684381 Mar 201318 Oct 2016Eticon Endo-Surgery, LLCSensor straightened end effector during removal through trocar
US946845318 Feb 201418 Oct 2016Covidien LpEndoscopic surgical forceps
US946849021 May 201518 Oct 2016Covidien LpGap control via overmold teeth and hard stops
US946849120 Oct 201518 Oct 2016Covidien LpVessel sealing instrument with reduced thermal spread and method of manufacture therefor
US94745704 Jun 201425 Oct 2016Covidien LpJaw closure detection system
US948047628 Mar 20121 Nov 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising resilient members
US948621420 May 20138 Nov 2016Ethicon Endo-Surgery, LlcMotor driven surgical fastener device with switching system configured to prevent firing initiation until activated
US9486220 *28 Sep 20118 Nov 2016Covidien LpSurgical tissue occluding device
US949216714 Mar 201315 Nov 2016Ethicon Endo-Surgery, LlcArticulatable surgical device with rotary driven cutting member
US949222120 Oct 201115 Nov 2016Covidien LpDissection scissors on surgical device
US94922236 Jun 201315 Nov 2016Covidien LpApparatus for performing an electrosurgical procedure
US949222420 Sep 201315 Nov 2016EthiconEndo-Surgery, LLCMulti-function bi-polar forceps
US949222511 Feb 201415 Nov 2016Covidien AgVessel sealer and divider for use with small trocars and cannulas
US949821930 Jun 201522 Nov 2016Ethicon Endo-Surgery, LlcDetachable motor powered surgical instrument
US949828018 Nov 201522 Nov 2016Covidien LpBlade lockout mechanism for surgical forceps
US949828130 Sep 201322 Nov 2016Covidien LpSurgical apparatus
US950451321 Jul 201529 Nov 2016Covidien LpApparatus for performing electrosurgical procedures having a spring mechanism associated with the jaw members
US95045142 Mar 201529 Nov 2016Covidien LpSurgical instrument with resilient driving member and related methods of use
US950451911 Sep 201529 Nov 2016Covidien LpSurgical forceps
US951082823 Ago 20136 Dic 2016Ethicon Endo-Surgery, LlcConductor arrangements for electrically powered surgical instruments with rotatable end effectors
US951083023 Oct 20146 Dic 2016Ethicon Endo-Surgery, LlcStaple cartridge
US951089120 Jun 20136 Dic 2016Covidien LpSurgical instruments with structures to provide access for cleaning
US951089626 May 20156 Dic 2016Covidien LpSurgical forceps
US951706328 Mar 201213 Dic 2016Ethicon Endo-Surgery, LlcMovable member for use with a tissue thickness compensator
US95170685 Ago 201313 Dic 2016Ethicon Endo-Surgery, LlcSurgical instrument with automatically-returned firing member
US952202912 Mar 201320 Dic 2016Ethicon Endo-Surgery, LlcMotorized surgical cutting and fastening instrument having handle based power source
US95265641 Oct 201327 Dic 2016Covidien LpElectric stapler device
US95265658 Nov 201327 Dic 2016Ethicon Endo-Surgery, LlcElectrosurgical devices
US952656718 Feb 201427 Dic 2016Covidien LpThread-like knife for tissue cutting
US953904922 Abr 201510 Ene 2017Covidien LpMonopolar pencil with integrated bipolar/ligasure tweezers
US95390539 May 201410 Ene 2017Covidien LpVessel sealer and divider for large tissue structures
US954526229 Mar 201317 Ene 2017Covidien LpApparatus for performing an electrosurgical procedure
US95497325 Mar 201324 Ene 2017Ethicon Endo-Surgery, LlcMotor-driven surgical cutting instrument
US954974920 Sep 201324 Ene 2017Covidien LpSurgical forceps
US954977511 Mar 201424 Ene 2017Covidien AgIn-line vessel sealer and divider
US95547941 Mar 201331 Ene 2017Ethicon Endo-Surgery, LlcMultiple processor motor control for modular surgical instruments
US955484110 Abr 201431 Ene 2017Covidien LpDual durometer insulating boot for electrosurgical forceps
US95548448 Feb 201631 Ene 2017Covidien LpOpen vessel sealing instrument and method of manufacturing the same
US955484518 Feb 201431 Ene 2017Covidien LpSurgical forceps for treating and cutting tissue
US955484625 Ago 201431 Ene 2017Ethicon Endo-Surgery, LlcSurgical instrument with jaw member
US955485418 Mar 201431 Ene 2017Ethicon Endo-Surgery, LlcDetecting short circuits in electrosurgical medical devices
US956103213 Ago 20137 Feb 2017Ethicon Endo-Surgery, LlcStaple cartridge comprising a staple driver arrangement
US956103828 Jun 20127 Feb 2017Ethicon Endo-Surgery, LlcInterchangeable clip applier
US95660618 Feb 201314 Feb 2017Ethicon Endo-Surgery, LlcFastener cartridge comprising a releasably attached tissue thickness compensator
US956610811 Nov 201314 Feb 2017Applied Medical Resources CorporationElectrosurgical system
US957252914 Oct 201321 Feb 2017Covidien LpSurgical devices and methods utilizing optical coherence tomography (OCT) to monitor and control tissue sealing
US957257422 Jun 201521 Feb 2017Ethicon Endo-Surgery, LlcTissue thickness compensators comprising therapeutic agents
US957257727 Mar 201321 Feb 2017Ethicon Endo-Surgery, LlcFastener cartridge comprising a tissue thickness compensator including openings therein
US957464430 May 201321 Feb 2017Ethicon Endo-Surgery, LlcPower module for use with a surgical instrument
US95791454 Feb 201428 Feb 2017Covidien AgFlexible endoscopic catheter with ligasure
US95856578 Feb 20137 Mar 2017Ethicon Endo-Surgery, LlcActuator for releasing a layer of material from a surgical end effector
US95856587 Abr 20167 Mar 2017Ethicon Endo-Surgery, LlcStapling systems
US958565931 Jul 20137 Mar 2017Covidien LpBattery powered surgical instrument
US95856638 Mar 20167 Mar 2017Ethicon Endo-Surgery, LlcSurgical stapling instrument configured to apply a compressive pressure to tissue
US958566413 Jun 20167 Mar 2017Covidien LpPowered surgical stapling device platform
US95857163 Jun 20147 Mar 2017Covidien AgVessel sealing instrument with electrical cutting mechanism
US95920508 Feb 201314 Mar 2017Ethicon Endo-Surgery, LlcEnd effector comprising a distal tissue abutment member
US959205212 Mar 201414 Mar 2017Ethicon Endo-Surgery, LlcStapling assembly for forming different formed staple heights
US959205322 May 201414 Mar 2017Ethicon Endo-Surgery, LlcStaple cartridge comprising multiple regions
US95920544 Nov 201514 Mar 2017Ethicon Endo-Surgery, LlcSurgical stapler with stationary staple drivers
US960359528 Feb 201428 Mar 2017Ethicon Endo-Surgery, LlcSurgical instrument comprising an adjustable system configured to accommodate different jaw heights
US960359830 Ago 201328 Mar 2017Ethicon Endo-Surgery, LlcSurgical stapling device with a curved end effector
US960365221 Ago 200828 Mar 2017Covidien LpElectrosurgical instrument including a sensor
US961009110 Mar 20144 Abr 2017Ethicon Endo-Surgery, LlcElectrosurgical cutting and sealing instruments with jaws having a parallel closure motion
US961011623 Ene 20154 Abr 2017Covidien LpElectrosurgical instrument with a knife blade lockout mechanism
US961012124 Jun 20164 Abr 2017Covidien LpLight energy sealing, cutting and sensing surgical device
US96158268 Feb 201311 Abr 2017Ethicon Endo-Surgery, LlcMultiple thickness implantable layers for surgical stapling devices
US961587717 Jun 201111 Abr 2017Covidien LpTissue sealing forceps
US962281010 Feb 201418 Abr 2017Covidien LpSurgical forceps
US962962314 Mar 201325 Abr 2017Ethicon Endo-Surgery, LlcDrive system lockout arrangements for modular surgical instruments
US96296297 Mar 201425 Abr 2017Ethicon Endo-Surgey, LLCControl systems for surgical instruments
US962981420 Mar 201425 Abr 2017Ethicon Endo-Surgery, LlcTissue thickness compensator configured to redistribute compressive forces
US963616828 May 20132 May 2017Covidien LpElectrosurgical instrument including nested knife assembly
US963616919 Sep 20112 May 2017Covidien LpElectrosurgical instrument
US964267118 Jul 20149 May 2017Covidien LpLimited-use medical device
US96491109 Abr 201416 May 2017Ethicon LlcSurgical instrument comprising a closing drive and a firing drive operated from the same rotatable output
US964911128 Jun 201216 May 2017Ethicon Endo-Surgery, LlcReplaceable clip cartridge for a clip applier
US96491216 Oct 201416 May 2017Covidien LpApparatus for performing an electrosurgical procedure
US964915110 Mar 201416 May 2017Covidien LpEnd effector assemblies and methods of manufacturing end effector assemblies for treating and/or cutting tissue
US964915228 Mar 201616 May 2017Covidien LpSurgical forceps
US965561411 Mar 201323 May 2017Ethicon Endo-Surgery, LlcRobotically-controlled motorized surgical instrument with an end effector
US965562430 Ago 201323 May 2017Ethicon LlcSurgical stapling device with a curved end effector
US96556734 Mar 201423 May 2017Covidien LpSurgical instrument
US96556741 Oct 201423 May 2017Covidien LpApparatus, system and method for performing an electrosurgical procedure
US965567521 Abr 201523 May 2017Covidien LpVessel sealer and divider
US966211015 Sep 201530 May 2017Ethicon Endo-Surgery, LlcSurgical stapling instrument with an articulatable end effector
US966873111 Ene 20166 Jun 2017Covidien LpPowered surgical instrument
US966873321 Abr 20146 Jun 2017Covidien LpStapling device with features to prevent inadvertent firing of staples
US966873523 Nov 20156 Jun 2017Covidien LpSurgical instruments employing sensors
US966880629 Sep 20116 Jun 2017Covidien LpSurgical forceps including a removable stop member
US966880725 Sep 20136 Jun 2017Covidien LpSimplified spring load mechanism for delivering shaft force of a surgical instrument
US966880811 Ago 20146 Jun 2017Covidien LpBifurcated shaft for surgical instrument
US966881021 Ago 20156 Jun 2017Covidien LpModular surgical instrument with contained electrical or mechanical systems
US967535530 Ago 201313 Jun 2017Ethicon LlcSurgical stapling device with a curved end effector
US96819085 Sep 201320 Jun 2017Covidien LpJaw assemblies for electrosurgical instruments and methods of manufacturing jaw assemblies
US968723014 Mar 201327 Jun 2017Ethicon LlcArticulatable surgical instrument comprising a firing drive
US96872378 Jun 201527 Jun 2017Ethicon Endo-Surgery, LlcStaple cartridge including collapsible deck arrangement
US968729018 Sep 201327 Jun 2017Covidien LpEnergy-based medical devices
US96872959 Dic 201427 Jun 2017Covidien LpMethods of manufacturing a pair of jaw members of an end-effector assembly for a surgical instrument
US969036226 Mar 201427 Jun 2017Ethicon LlcSurgical instrument control circuit having a safety processor
US969377724 Feb 20144 Jul 2017Ethicon LlcImplantable layers comprising a pressed region
US969381630 Ene 20124 Jul 2017Covidien LpElectrosurgical apparatus with integrated energy sensing at tissue site
US97003091 Mar 201311 Jul 2017Ethicon LlcArticulatable surgical instruments with conductive pathways for signal communication
US970031023 Ago 201311 Jul 2017Ethicon LlcFiring member retraction devices for powered surgical instruments
US970031417 Nov 201511 Jul 2017Covidien LpSurgical stapling apparatus with powered articulation
US97003178 Feb 201311 Jul 2017Ethicon Endo-Surgery, LlcFastener cartridge comprising a releasable tissue thickness compensator
US970032128 May 201411 Jul 2017Ethicon LlcSurgical stapling device having supports for a flexible drive mechanism
US970033330 Jun 201411 Jul 2017Ethicon LlcSurgical instrument with variable tissue compression
US970039820 Feb 201511 Jul 2017Maquet Cardiovascular LlcVessel harvester
US970699119 Feb 201418 Jul 2017Ethicon Endo-Surgery, Inc.Staple cartridge comprising staples including a lateral base
US970703030 Jun 201418 Jul 2017Ethicon Endo-Surgery, LlcSurgical instrument with jaw member
US970703120 May 201518 Jul 2017Covidien LpSurgical forceps and method of manufacturing thereof
US971349112 Dic 201325 Jul 2017Covidien LpMethod for manufacturing an electrode assembly configured for use with an electrosurigcal instrument
US971349330 Abr 201225 Jul 2017Covidien LpMethod of switching energy modality on a cordless RF device
US97175483 Jun 20141 Ago 2017Covidien LpElectrode for use in a bipolar electrosurgical instrument
US971754914 Oct 20141 Ago 2017Covidien LpSurgical forceps
US971755027 Jun 20161 Ago 2017Covidien LpMulti-circuit seal plates
US972409129 Ago 20138 Ago 2017Ethicon LlcSurgical stapling device
US97240945 Sep 20148 Ago 2017Ethicon LlcAdjunct with integrated sensors to quantify tissue compression
US972409813 Nov 20148 Ago 2017Ethicon Endo-Surgery, LlcStaple cartridge comprising an implantable layer
US972411616 Ago 20138 Ago 2017Covidien LpJaw, blade and gap manufacturing for surgical instruments with small jaws
US97241573 Oct 20148 Ago 2017Covidien LpMicrowave sensing for tissue sealing
US973069212 Mar 201315 Ago 2017Ethicon LlcSurgical stapling device with a curved staple cartridge
US973069517 Sep 201515 Ago 2017Ethicon Endo-Surgery, LlcPower management through segmented circuit
US973069723 Abr 201515 Ago 2017Ethicon Endo-Surgery, LlcSurgical cutting and fastening instrument with apparatus for determining cartridge and firing motion status
US973078220 Feb 201515 Ago 2017Maquet Cardiovascular LlcVessel harvester
US973366326 Mar 201415 Ago 2017Ethicon LlcPower management through segmented circuit and variable voltage protection
US97373015 Sep 201422 Ago 2017Ethicon LlcMonitoring device degradation based on component evaluation
US97373028 Mar 201622 Ago 2017Ethicon LlcSurgical stapling instrument having a restraining member
US973730310 Sep 201522 Ago 2017Ethicon LlcArticulating surgical stapling instrument incorporating a two-piece E-beam firing mechanism
US973735531 Mar 201422 Ago 2017Ethicon LlcControlling impedance rise in electrosurgical medical devices
US973735724 Sep 201322 Ago 2017Covidien AgVessel sealer and divider
US973735820 Mar 201522 Ago 2017Ethicon LlcHeat management configurations for controlling heat dissipation from electrosurgical instruments
US974392825 Mar 201429 Ago 2017Ethicon Endo-Surgery, Inc.Surgical instrument having a feedback system
US974392926 Mar 201429 Ago 2017Ethicon LlcModular powered surgical instrument with detachable shaft assemblies
US974397627 Jun 201629 Ago 2017Covidien LpSurgical forceps
US975049828 Sep 20155 Sep 2017Ethicon Endo Surgery, LlcDrive systems for surgical instruments
US975049926 Mar 20145 Sep 2017Ethicon LlcSurgical stapling instrument system
US975050124 May 20165 Sep 2017Ethicon Endo-Surgery, LlcSurgical stapling devices having laterally movable anvils
US975051923 Jul 20155 Sep 2017Covidien LpCoupling mechanisms for surgical instruments
US975056122 Feb 20165 Sep 2017Covidien LpSystem for manufacturing electrosurgical seal plates
US97571237 Mar 201312 Sep 2017Ethicon LlcPowered surgical instrument having a transmission system
US975712424 Feb 201412 Sep 2017Ethicon LlcImplantable layer assemblies
US97571285 Sep 201412 Sep 2017Ethicon LlcMultiple sensors with one sensor affecting a second sensor's output or interpretation
US975713012 Mar 201412 Sep 2017Ethicon LlcStapling assembly for forming different formed staple heights
US975718617 Abr 201412 Sep 2017Ethicon LlcDevice status feedback for bipolar tissue spacer
US20030014052 *6 Jun 200216 Ene 2003Buysse Steven P.Laparoscopic bipolar electrosurgical instrument
US20030014053 *5 Abr 200216 Ene 2003Nguyen Lap P.Vessel sealing instrument
US20030018331 *25 Jun 200223 Ene 2003Dycus Sean T.Vessel sealer and divider
US20030181910 *8 Ene 200325 Sep 2003Dycus Sean T.Bipolar electrosurgical forceps with non-conductive stop members
US20040098040 *30 Jul 200320 May 2004Olympus Optical Co., Ltd.Surgical instrument
US20050010212 *9 Ago 200413 Ene 2005Tissuelink Medical. Inc.Fluid-assisted medical devices, systems and methods
US20050184121 *16 Abr 200325 Ago 2005Russell HeinrichSurgical stapler and method
US20050192628 *18 Abr 20051 Sep 2005Viola Frank J.Surgical stapling apparatus having a wound closure material applicator assembly
US20060085032 *1 Feb 200520 Abr 2006Viola Frank JStructure containing wound treatment material
US20060273135 *31 May 20067 Dic 2006Beetel Robert JSurgical instruments employing sensors
US20070179408 *21 Abr 20062 Ago 2007Soltz Michael AMethod and system to determine an optimal tissue compression time to implant a surgical element
US20070198005 *22 Feb 200623 Ago 2007Hiroshi IchihashiCoagulating cutter
US20080083806 *6 Oct 200610 Abr 2008Tyco Healthcare Group LpGrasping jaw mechanism
US20080197167 *24 Abr 200821 Ago 2008Tyco Healthcare Group LpSurgical stapler with timer and feedback display
US20080230583 *2 Jun 200825 Sep 2008Tyco Healthcare Group LpSurgical Stapler and Method
US20080314958 *28 Ago 200825 Dic 2008Tyco Healthcare Group LpGrasping Jaw Mechanism
US20090043305 *12 Jul 200512 Feb 2009Erbe Elektromedizin GmbhSurgical instrument
US20090050670 *28 Oct 200826 Feb 2009Tyco Healthcare Group LpStructure Containing Wound Treatment Material
US20090145947 *14 Ene 200911 Jun 2009Paul SciricaGrasping jaw mechanism
US20090248007 *1 Abr 20091 Oct 2009Applied Medical Resources CorporationElectrosurgical system
US20100042142 *15 Ago 200818 Feb 2010Cunningham James SMethod of Transferring Pressure in an Articulating Surgical Instrument
US20100051668 *20 Ago 20094 Mar 2010Milliman Keith LSurgical instrument with indicator
US20100076429 *2 Dic 200925 Mar 2010Tyco Healthcare Group LpSurgical stapler and method
US20100133319 *1 Feb 20103 Jun 2010Milliman Keith LSurgical instrument with indicator
US20100155454 *2 Mar 201024 Jun 2010Tyco Healthcare Group LpStructure containing wound treatment material
US20100200637 *15 Abr 201012 Ago 2010Beetel Robert JSurgical Instruments Employing Sensors
US20110054469 *27 Ago 20093 Mar 2011Tyco Healthcare Group LpVessel Sealer and Divider with Knife Lockout
US20110082457 *6 Oct 20097 Abr 2011Tyco Healthcare Group LpApparatus, System, and Method for Performing an Electrosurgical Procedure
US20110168757 *21 Mar 201114 Jul 2011Tyco Healthcare Group LpBattery powered surgical instrument
US20110245829 *19 Mar 20116 Oct 2011Fujifilm CorporationEndoscopic high-frequency treatment instrument
US20110315739 *8 Sep 201129 Dic 2011Tyco Healthcare Group LpCartridge for Applying Varying Amounts of Tissue Compression
US20120012636 *14 Jul 201019 Ene 2012Ethicon Endo-Surgery, Inc.Surgical instruments with electrodes
US20130079760 *28 Sep 201128 Mar 2013Tyco Healthcare Group LpSurgical Tissue Occluding Device
US20150122871 *16 Ene 20157 May 2015Covidien LpSurgical stapling apparatus
USD64924915 Feb 200722 Nov 2011Tyco Healthcare Group LpEnd effectors of an elongated dissecting and dividing instrument
USD66139424 Feb 20115 Jun 2012Tyco Healthcare Group LpDevice jaw
USD68022012 Ene 201216 Abr 2013Coviden IPSlider handle for laparoscopic device
USD7269105 Feb 201414 Abr 2015Covidien LpReusable forceps for open vessel sealer with mechanical cutter
USD7287863 May 20135 May 2015Covidien LpVessel sealer with mechanical cutter and pistol-grip-style trigger
USD7369205 Feb 201418 Ago 2015Covidien LpOpen vessel sealer with mechanical cutter
USD7374395 Feb 201425 Ago 2015Covidien LpOpen vessel sealer with mechanical cutter
USD7384995 Feb 20148 Sep 2015Covidien LpOpen vessel sealer with mechanical cutter
USD7446445 Feb 20141 Dic 2015Covidien LpDisposable housing for open vessel sealer with mechanical cutter
USD74825929 Dic 201426 Ene 2016Applied Medical Resources CorporationElectrosurgical instrument
USD77419016 Jul 201513 Dic 2016Covidien LpOpen vessel sealer with mechanical cutter
USD77533324 Ago 201527 Dic 2016Covidien LpOpen vessel sealer with mechanical cutter
USD78830213 Oct 201530 May 2017Covidien LpKnife for endoscopic electrosurgical forceps
USRE448347 Dic 20128 Abr 2014Covidien AgInsulating boot for electrosurgical forceps
USRE4617924 Jun 201518 Oct 2016Covidien LpRotation knobs for surgical instruments
Clasificaciones
Clasificación de EE.UU.606/50, 606/142, 606/40, 606/205, 606/41, 606/46, 606/143, 606/49
Clasificación internacionalA61B19/00, A61B18/14, A61B17/32, A61B18/12, A61B17/072, A61B17/115
Clasificación cooperativaA61B2018/00875, A61B17/32, A61B18/1447, A61B17/07207, A61B18/1402, A61B18/1206, A61B2090/032
Clasificación europeaA61B18/12G, A61B18/14F2V, A61B17/072B
Eventos legales
FechaCódigoEventoDescripción
14 May 1997ASAssignment
Owner name: ETHICON ENDO-SURGERY, INC., OHIO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YATES, DAVID C.;VOEGELE, JAMES W.;KUHNS, JESSE;AND OTHERS;REEL/FRAME:008563/0281;SIGNING DATES FROM 19970401 TO 19970411