Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.

Patentes

  1. Búsqueda avanzada de patentes
Número de publicaciónUS3100489 A
Tipo de publicaciónConcesión
Fecha de publicación13 Ago 1963
Fecha de presentación30 Sep 1957
Fecha de prioridad30 Sep 1957
Número de publicaciónUS 3100489 A, US 3100489A, US-A-3100489, US3100489 A, US3100489A
InventoresRussell W Bagley
Cesionario originalMedtronic Inc
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Cautery device
US 3100489 A
Resumen  disponible en
Imágenes(1)
Previous page
Next page
Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)

Aug. 13, 1963 R. w. BAGLEY CAUTERY DEVICE Filed Sept. 30, 1957 IIIIIIIIII!!! I!!! 0 ll M 0 RL v. mm E E5 m w m Mm R% B United States Patent Filed Sept. 30, 1957, Ser. No. 687,150 6 Claims. 01. 128303.17)

This invention relates to a control unit for a radio frequency cautery instrument or the like. More particularly, this inventionrelates to the combination of an elec tro-coagulation forceps with a relay control unit for actuating cautery instruments.

It is a common practice in some surgical techniques to use radio frequency currents forthe cauterizat-ion or electro-coagulation of small blood vessels and the like. The usual practice is to control the operation of the radio frequency apparatus by a switch operated by a foot edal at the surgeons command. The use of foot pedal control has been fraught with danger, both to the patient and to the surgeon. According to prior practice, it has been necessary for the surgeon to contact the tissue to be canterized and then with his foot actuate the foot pedal switch. Often this necessitates removing his eyes from the operative field to locate the foot switch. There has been the possibility of accidental cautery of edges of incisions and adjacent tissues and the like. There has also been the possibility of burning surgeons hands. In addition, there has been the possibility of 110 volt shock dueto faulty wiring in the foot control.

It is the principal object of this invention to afford the surgeon absolute control of electro-coagulations by providing acontrol unit for radio frequency apparatus actuated by a switch in the forceps through a relay.

It is a further object of this invention to overcome the deficiencies of existing control units for radio frequency cauterizing apparatus by providing an insulated electrocoagulation forceps having a built-in control switch automatically operative from the surgeons hand through a relay control unit.

Other objects of the invention will become apparent as the description proceed-s.

To the accomplishment of the foregoing and related ends, this invention thencomprises the features hereinafter fully described and particu-larly pointed out in the claims, the following description setting forth in detail certain illustrative embodiments of the invention, these being indicative, however, of but a few of the various ways in which the principles of the invention may be employed.

The invention is illustrated by the drawings in which the same numeralsrefer to corresponding parts and in which:

FIGURE lis schematic and diagrammatic representation of a radiofrequency cauterizing circuit as used surgically in conjunction with the forceps and relay control according to this invention;

, FIGURE 2 is a side elevation of the electro-coagulat-ion [forceps according to this invention;

FIGURE 3 is a sectional view taken generally along the lines 3-3 of FIGURE 2 and in the direction of the arrows; and

.FIGUR.E 4 is a circuit diagram of the relay control unit.

Referring to FIGURE 1 of the drawings, a radio frequency cautery instrument is indicated generally at 19. This instrument is a standard device, the construction of which forms no part of this invention except that it is controlled by the forceps and relay of this invention.

Qneexample of such a conventional radio frequency apparatus is illustrated and described in United States Patent 31,100,489 Patented Aug. 13, 1963 1,841,968. It is to be understood that the contnol unit of this invention is not limited to any specific cautery instrument but may be adapted to any such present instruments.

The instrument It) is provided with a plug 11 attached to a cord 12 by which the instrument is connected to the ordinary available commercial electrical current. In most instances, this will be volt, 60 cycle alternating current, but, of course, such instruments may be adapted to operate from standard current of different voltage. The instrument is provided with a single terminal socket 0r jack 13 by means of which a radio frequency current conductor 14 may be connected to the instrument. The radio frequency line 1-4 is connected by means of a sin gle terminal socket or jack 15 to a relay control unit or box indicated generally at 16. The radio frequency instrument 10 is provided With a multiple terminal socket 17 by which it is connected through a multiple conductor cable or cord 18 to a similar multiple terminal socket 19 in the relay control unit 16 for purposes which will be explained in detail hereinafter. The instrument 10 is also provided with a single terminal jack or socket 20- through whichit is connected by means of a conductor 21 to a ground plate 22 which is in contact with the body of a patient, indicated generally at 23, for grounding the patient to the instrument to complete the path of'the radio frequency circuit.

other conductor 26 from the relay box 16 is connected in electrical contact with a switch contact element 29 disposed on the inner surface of the other arm of the forceps but electrically insulated from the forceps. Conductor Wire 26 is likewise electrically insulated from the forceps body.

The switch contacts 28 and 29 are disposed on the inside surfaces of the arms of the forceps so as to touch one another when the forceps arms are closed under pressure of the surgeons fingers to bring the tips 30 and 31 together. The curvature of the arms of the forceps is preferably such that after the tips 30 and 3:] are brought together, a slight additional pressure is required to bring the switch contacts 28 and 29' together. The conductor 25 may desirably be connected to the forceps body by means of any suitable connector member 32 riveted as at 33 or soldered, welded or otherwise secured in contact with the metal forceps body. The switch contact surface 28 is direct metallic contact with the forceps body, and is rigidly secured by means of riveting, soldering, welding or the like. The switch contact surface 29 on the other hand is provided with a conducting metallic pin 34 which extends through the side arm of the forceps and is insulated from it by means of a sleeve 35 of insulating material set in an opening in the forceps arm. The conductor '26 is soldered or otherwise suitably attached to the pin 34 of the switch contact 29. The entire surface of the forceps with the exception of the switch con-tact surfaces 28 and 29 and the forceps tips 30* and 31 are provided with an over-all pliable insulating coating of rubber or synthetic rubber-like material applied by dipping, brushing, etc. and indicated at 36. The conductor 26 is spaced and insulated from the metal of the forceps body by an intermediate layer of the insulating coating.

Referring to FIGURE 4 there is shown a circuit diagram of the relay control unit 16. A conductor 37 I carries the radio frequency current between the terminal of socket 15 and one of the terminals of the socket 24 from whence it is passed through conductor 25 to the body of the forceps 27. The relay circuit includes a 12.6 volt transformer 38 the primary of which is connected by means of conductors 39 and All to terminals .41 and 42 of the socket 19'. By this means, the primary of the transformer draws through the multi-conductor cable 18 from the power circuit of the cautery instrument it).

One side of the secondary of transformer 38 is connected in series through a conductor 43 to the choke coil 44 of a relay. The double pole, single throw switch 45 is connected by means of conductors 46 and 47 to terminals 48 and 49 of the multiple socket 19. The

switch45 is thus connected through the cable 18 to the operating circuit of the cautery instrument it to control the operation of that circuit. The contacts of switch 45 :are normally disengaged when coil 44 is deenergized and are brought into engagement when the coil is energized. The relay box is grounded through I conductor 56 to terminal 51 of the socket l9 and thence through the multiple conductor cable 18 to the ground circuit of the cautery instrument 10. r

The other side of the secondary of the transformer 38 is connected through a conductor 52, a 4 mh., 600 ma. radio frequency choke 53 and aconductor 54 to the terminal 55 of socket 24 and thence through conductor 26 to-the switch contact surface 29 on the forceps. The opposite side of relay choke coil 44 is connected through conductor 56, a 4 mh., 600 me. radio frequency choke to the metal relay box are connected across the radio frequency chokes on the low frequency relay side the circuit. I

The radio frequency choke circuit acts as a low pass filter unit to insulate the relay circuit from the high frequency radio current. The chokes have high reactanceto radio frequency current and tend to isolate radio frequency flow to prevent loss of radio frequency current to the relay circuit which is grounded. The con- ;densers 61 and 62 have low reactance to radio frequency current and tend to hold the relay circuit side of the chokes at ground potential so far as radio frequency current is. concerned. The condenser 60 has low reactance to radio frequency current and effectively shorts the control wires so far as radio frequency current is concerned.

The resistance 59 is a limiting resistance to protect the condenser against surges in current. The double pole relay switch is used as a safety factor. A single pole switch would be effective to control the cautery instrument but a double pole switch insures better contact and prolongs the life of the relay unit. Twelve vol-t current is induced in the transformer secondary coil although only 6 volt is required by the relay. However, about lralf of the voltage is lost across the radio frequency chokes which have high internal resistance.

In the operation of the control device of this invention, the patient 23 rests in-contact with plate 22 which is grounded to the cautery, instrument 10. A radio frequency circuit runs from the cautery instrument through conductor 14 to the relay box, through con.-

.ductor 37 in the relay box, through conductor '25 to the forceps, through the forceps to the patient and thence to the ground plate and conductor 21 back to the cautery'instrumeut. The relay box 16 is grounded to the cautery instrument and the relay circuit is powered from the power circuit of the cautery instrument;

The operating (radio frequency generating) circuit runs from the cautery instrument 10 to the relay box 16, through terminal 48 and conductor 46 to the switch 45 and back through'the conductor 47 and terminal 49' to the cautery instrument 10 So long as the forceps switch control circuit is open switches 45 are open and the cautery instrument is inoperative. The control circuit is powered through the tnansformer'lls' and runs from the secondary to the relay coil 44, through radio frequency choke 57, through radio frequency conductor 37 and through conductor 25 to the forceps 27 and switch contact surface $8 and thence from switch contact surface 29, through conductor 26 and radio frequency choke 53 back to the secondary of the transformer. It will be noticed thata portion of conductor 37, all of conductor 25 and a portion of the forceps 27 carry both high radio frequency current and low frequency control current. i v

The operating surgeon grasps the tissue to be cauterized between the exposed tips 30' and 31 of'the forceps 27. 'With the tissue thus grasped, he then exerts the slight additional amount of pressure required to bring contacts 28 and 29 together to close the controlswitch and complete the control circuit. Current then flows from the secondary of the transformer 38 to the relaycoil to energize its core to actuate switch 45 to close it. With switch 45 'clo'sedthe operating circuit of the radio frequency apparatus is closed. Radio frequency current is genera-ted and flows through the previously described ci-rcuitto the patient 23.

As soon as the desired coagulation has taken place, the

, surgeon relaxes his grip upon the forceps. The normal spring tension of the forceps separates the contact surfaces 28'and 2? to open the control switch and break the control circuit. Current then ceases to pass through the circuit, the relay is de energized and switch 45 is opened therebyshutting off the operating circuit of the cautery instrument. I

The surgeon is provided with immediate and absolute 7 in a conventional foot control has been eliminated. The

loss of radio frequency current to'the relay circuit during cauterization is prevented by the'radio frequency choke.

Although the construction of the device of this invention has lbeendescribed with specific reference to a 110 volt, -60 cycle alternating operating current and various circuit elements have beenidescribed by reference to their specific resistances, inductances, capacities, etc., it will be understood that this represents merely a preferred embodiment of the invention and those specifically described elements may have varying relative values.

It is apparent that many modifications and variations of this invention as herein-before set forth may be made without departing from the spiritfand scope thereof. The specific embodiments described are given by way of example only and the invention is limited only by the terms of the appended claims.

I claim: V

1. A control unit for .a radio frequency cautery instrument, said control unit comprising a forceps comprising a pair of opposed elongated forceps arms secured together at one end and adapted to be brought together at their free ends by slight pressure on the opposite arms, a pair of electrical switch contact elements positioned on the respective inside surfaces of said forceps arms intermediate of their free and secured ends, said switch elements being positioned to come into contact with each other upon application of pressure to the outside surfaces of said forceps arms, one of said switch contact elements being in direct electrical contact with the body of said forceps, the second of said switch contacts being electrically insulated airornsaid :Eorceps body, a first electrical conductor secured in electrical contact with said forceps body and first switch contact element, a second electrical conductor secured in electrical contact with said second switch con-tact element but electrically insulated from said forceps body and an insulating coating covering all of said forceps except the tree end tips and said switch contact elements, means for connecting the first conductor secured in electrical contact with said forceps body and first switch contact element to the radio frequency output terminal of said cautery instrument, a relay having an operating coil and cooperating movable and fixed contacts, said contacts being normally disengaged when said coil is deenergized and normally engaging one another when said coil is energized, means for connecting said relay contacts in the operating circuit of said cautery instrument to govern the operation thereof, a transformer having a primary and secondary, a power circuit adapted for connection to an alternating current power supply and including said primary, the secondary being connected in series with one of said forceps conductors and the operating coil of said relay, the operating coil of the relay also being connected to the other of said forceps conductors, and a low pass filter unit in the circuit between said forceps conductors and said relay.

2. A control unit according to claim 1 further characterized in that said low pass filter unit includes a parallel pair of radio frequency chokes.

3. A control unit according to claim 2 further characterized in that a pair of condensers and a ground connection are connected across the circuit containing said radio frequency chokes between the chokes and relay.

'4. A control unit according to claim 2 further characterized in that a limiting resistance and condenser in series are connected across the circuit containing said radio frequency chokes between the chokes and forceps contact elements:

5. A control unit according to claim 1 further characterized in that means are provided for grounding said low pass filter units to said cautery instrument.

6. A control unit according to claim 1 further characterized in that means are provided for connecting said power circuit to the power circuit of said caute-ry instrument.

References Cited in the file of this patent UNITED STATES PATENTS 1,071,978 Wlhite Sept. 2, 1913 2,012,937 Benoy Sept. 3, 1935

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US1071978 *2 Sep 1913 Device for removing hairs.
US2012937 *27 Nov 19343 Sep 1935Beuoy George HElectrical caponizing forceps
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US3643663 *15 Oct 196922 Feb 1972F L FischerCoagulating instrument
US3645265 *25 Jun 196929 Feb 1972Majzlin GregoryIntrauterine cauterizing device
US3653385 *20 Oct 19704 Abr 1972Charles BurtonProduction of focal brain lesions by inductive heating
US3685518 *29 Jul 197022 Ago 1972Aesculap Werke AgSurgical instrument for high-frequency surgery
US3752160 *15 Jul 197114 Ago 1973Sybron CorpDisposable electrode switch
US3911241 *15 Dic 19727 Oct 1975Neomed IncSwitching device for electro-surgical instruments
US3999552 *20 May 197528 Dic 1976Universal Technology, Inc.Epilator
US4011872 *28 Mar 197515 Mar 1977Olympus Optical Co., Ltd.Electrical apparatus for treating affected part in a coeloma
US4274413 *1 Dic 197823 Jun 1981Hahn Robert HDepilatory tweezer
US4370980 *11 Mar 19811 Feb 1983Lottick Edward AElectrocautery hemostat
US4375218 *26 May 19811 Mar 1983Digeronimo Ernest MForceps, scalpel and blood coagulating surgical instrument
US4433364 *21 Mar 197921 Feb 1984Noble Edward ELighted handgrip
US4552143 *22 Nov 198212 Nov 1985Lottick Edward ARemovable switch electrocautery instruments
US4657018 *15 Oct 198414 Abr 1987Hakky Said IAutomatic/manual resectoscope
US4681105 *18 Abr 198321 Jul 1987S+T Marketing AgMicrosurgical tool
US5026370 *2 Jul 198625 Jun 1991Lottick Edward AElectrocautery instrument
US5116332 *8 Feb 199026 May 1992Lottick Edward AElectrocautery hemostat
US5122139 *8 Nov 199016 Jun 1992Select-Medizintechnik Hermann Sutter GmbhMedical coagulation instrument
US5207691 *1 Nov 19914 May 1993Medical Scientific, Inc.Electrosurgical clip applicator
US5250046 *26 Mar 19925 Oct 1993Lee Curtis OHeated forceps
US5306280 *5 Ago 199226 Abr 1994Ethicon, Inc.Endoscopic suture clip applying device with heater
US5396900 *17 Ago 199314 Mar 1995Symbiosis CorporationEndoscopic end effectors constructed from a combination of conductive and non-conductive materials and useful for selective endoscopic cautery
US5709224 *7 Jun 199520 Ene 1998Radiotherapeutics CorporationMethod and device for permanent vessel occlusion
US5810810 *6 Jun 199522 Sep 1998Scimed Life Systems, Inc.Apparatus and method for sealing vascular punctures
US5954692 *9 Jul 199721 Sep 1999SymbiosisEndoscopic robotic surgical tools and methods
US6041679 *19 Sep 199428 Mar 2000Symbiosis CorporationEndoscopic end effectors constructed from a combination of conductive and non-conductive materials and useful for selective endoscopic cautery
US6063085 *22 Oct 199316 May 2000Scimed Life Systems, Inc.Apparatus and method for sealing vascular punctures
US6077261 *31 Dic 199720 Jun 2000Radiotherapeutics CorporationDevice for permanent vessel occlusion
US6086586 *14 Sep 199811 Jul 2000Enable Medical CorporationBipolar tissue grasping apparatus and tissue welding method
US6235027 *21 Ene 199922 May 2001Garrett D. HerzonThermal cautery surgical forceps
US627049522 Feb 19967 Ago 2001Radiotherapeutics CorporationMethod and device for enhancing vessel occlusion
US629663517 May 19992 Oct 2001Symbiosis CorporationEndoscopic robotic surgical tools and methods
US6533778 *26 Abr 200118 Mar 2003Garrett D. HerzonThermal cautery surgical forceps
US665617330 Abr 20012 Dic 2003Radio Therapeutics CorporationMethod and device for enhancing vessel occlusion
US7166106 *4 Jun 200223 Ene 2007Erbe Elektromedizin GmbhBipolar clamp
US76253725 Ago 20051 Dic 2009Vnus Medical Technologies, Inc.Methods and apparatus for coagulating and/or constricting hollow anatomical structures
US78244085 Ago 20042 Nov 2010Tyco Healthcare Group, LpMethods and apparatus for coagulating and/or constricting hollow anatomical structures
US7896878 *12 Mar 20091 Mar 2011Coviden AgVessel sealing instrument
US79283382 Feb 200719 Abr 2011Plasma Surgical Investments Ltd.Plasma spraying device and method
US795115022 Feb 201031 May 2011Covidien AgVessel sealer and divider with rotating sealer and cutter
US8025668 *28 Abr 200527 Sep 2011C. R. Bard, Inc.Medical device removal system
US803084911 Sep 20094 Oct 2011Plasma Surgical Investments LimitedPulsed plasma device and method for generating pulsed plasma
US80837381 Nov 201027 Dic 2011Tyco Healthcare Group LpMethod and apparatus for coagulating and/or constricting hollow anatomical structures
US81053257 Jul 200631 Ene 2012Plasma Surgical Investments LimitedPlasma-generating device, plasma surgical device, use of a plasma-generating device and method of generating a plasma
US81099287 Jul 20067 Feb 2012Plasma Surgical Investments LimitedPlasma-generating device, plasma surgical device and use of plasma surgical device
US812862312 Oct 20096 Mar 2012Garrett D HerzonThermal cautery surgical forceps
US814748917 Feb 20113 Abr 2012Covidien AgOpen vessel sealing instrument
US8152806 *11 Sep 200810 Abr 2012Black & Black Surgical, Inc.Monopolar electrosurgical instrument
US819763315 Mar 201112 Jun 2012Covidien AgMethod for manufacturing an end effector assembly
US82573527 Sep 20104 Sep 2012Covidien AgBipolar forceps having monopolar extension
US833749426 Ene 201225 Dic 2012Plasma Surgical Investments LimitedPlasma-generating device having a plasma chamber
US834894829 Jul 20108 Ene 2013Covidien AgVessel sealing system using capacitive RF dielectric heating
US83571577 Dic 201122 Ene 2013Covidien LpMethods and apparatus for coagulating and/or constricting hollow anatomical structures
US836106125 Nov 200929 Ene 2013Covidien LpMethods and apparatus for coagulating and/or constricting hollow anatomical structures
US8361070 *19 Feb 200729 Ene 2013Synergetics, Inc.Non-stick bipolar forceps
US836107219 Nov 201029 Ene 2013Covidien AgInsulating boot for electrosurgical forceps
US836670615 Ago 20085 Feb 2013Cardiodex, Ltd.Systems and methods for puncture closure
US837207222 Nov 201112 Feb 2013Cardiodex Ltd.Methods and apparatus for hemostasis following arterial catheterization
US839409512 Ene 201112 Mar 2013Covidien AgInsulating boot for electrosurgical forceps
US839409611 Abr 201112 Mar 2013Covidien AgOpen vessel sealing instrument with cutting mechanism
US840919929 Dic 20112 Abr 2013Garrett D. HerzonThermal cautery surgical forceps
US843523621 Nov 20057 May 2013Cardiodex, Ltd.Techniques for heat-treating varicose veins
US84546024 May 20124 Jun 2013Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US846548725 Ene 201218 Jun 2013Plasma Surgical Investments LimitedPlasma-generating device having a throttling portion
US852389810 Ago 20123 Sep 2013Covidien LpEndoscopic electrosurgical jaws with offset knife
US855109130 Mar 20118 Oct 2013Covidien AgVessel sealing instrument with electrical cutting mechanism
US85684447 Mar 201229 Oct 2013Covidien LpMethod of transferring rotational motion in an articulating surgical instrument
US859150616 Oct 201226 Nov 2013Covidien AgVessel sealing system
US859729631 Ago 20123 Dic 2013Covidien AgBipolar forceps having monopolar extension
US861374229 Ene 201024 Dic 2013Plasma Surgical Investments LimitedMethods of sealing vessels using plasma
US864171315 Sep 20104 Feb 2014Covidien AgFlexible endoscopic catheter with ligasure
US866868919 Abr 201011 Mar 2014Covidien AgIn-line vessel sealer and divider
US867911423 Abr 201025 Mar 2014Covidien AgIncorporating rapid cooling in tissue fusion heating processes
US872163921 Dic 201213 May 2014Covidien LpMethods and apparatus for coagulating and/or constricting hollow anatomical structures
US87357666 Ago 200727 May 2014Plasma Surgical Investments LimitedCathode assembly and method for pulsed plasma generation
US879526621 Dic 20125 Ago 2014Covidien LpMethods and apparatus for coagulating and/or constricting hollow anatomical structures
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
US889888826 Ene 20122 Dic 2014Covidien LpSystem for manufacturing electrosurgical seal plates
US893663120 Ago 201020 Ene 2015Covidien LpApparatus and methods for treating hollow anatomical structures
US894512510 Sep 20103 Feb 2015Covidien AgCompressible jaw configuration with bipolar RF output electrodes for soft tissue fusion
US90284938 Mar 201212 May 2015Covidien LpIn vivo attachable and detachable end effector assembly and laparoscopic surgical instrument and methods therefor
US904424215 Ene 20132 Jun 2015Kogent Surgical, LLCBipolar forceps
US908931922 Jul 201028 Jul 2015Plasma Surgical Investments LimitedVolumetrically oscillating plasma flows
US91138989 Sep 201125 Ago 2015Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US911394022 Feb 201225 Ago 2015Covidien LpTrigger lockout and kickback mechanism for surgical instruments
US93455348 Mar 201224 May 2016Covidien LpVessel sealing instrument
US934553514 Oct 201424 May 2016Covidien LpApparatus, system and method for performing an electrosurgical procedure
US936424716 Ago 201314 Jun 2016Covidien LpEndoscopic electrosurgical jaws with offset knife
US93752705 Nov 201328 Jun 2016Covidien AgVessel sealing system
US93752715 Nov 201328 Jun 2016Covidien AgVessel sealing system
US945201223 Abr 201527 Sep 2016Kogent Surgical, LLCBipolar forceps
US945686313 Dic 20134 Oct 2016Covidien LpSurgical instrument with switch activation control
US94630675 Nov 201311 Oct 2016Covidien AgVessel sealing system
US94982799 Jul 201522 Nov 2016Covidien LpVessel sealing instrument
US954977511 Mar 201424 Ene 2017Covidien AgIn-line vessel sealer and divider
US95791454 Feb 201428 Feb 2017Covidien AgFlexible endoscopic catheter with ligasure
US961624620 Ago 201011 Abr 2017Covidien LpApparatus and methods for treating hollow anatomical structures
US96556724 Oct 201023 May 2017Covidien LpVessel sealing instrument
US96556734 Mar 201423 May 2017Covidien LpSurgical instrument
US96556741 Oct 201423 May 2017Covidien LpApparatus, system and method for performing an electrosurgical procedure
US97954399 Feb 201624 Oct 2017Covidien LpVessel sealing instrument
US980168022 Ago 201631 Oct 2017Kogent Surgical, LLCBipolar forceps
US20030125735 *23 Dic 20023 Jul 2003Herzon Garrett D.Thermal cautery surgical forceps
US20040153020 *4 Jun 20025 Ago 2004Volker BartelBipolar clamp
US20060030849 *5 Ago 20049 Feb 2006Vnus Medical Technologies, Inc.Methods and apparatus for coagulating and/or constricting hollow anatomical structures
US20060189979 *5 Ago 200524 Ago 2006Esch Brady DMethods and apparatus for coagulating and/or constricting hollow anatomical structures
US20060247572 *28 Abr 20052 Nov 2006C. R. Bard, Inc.Medical device removal system
US20060293648 *30 Ago 200628 Dic 2006Herzon Garrett DThermal cautery surgical forceps
US20070029292 *7 Jul 20068 Feb 2007Nikolay SuslovPlasma-generating device, plasma surgical device and use of a plasma surgical device
US20080200914 *19 Feb 200721 Ago 2008Synergetics, Inc.Non-Stick Bipolar Forceps
US20090171353 *12 Mar 20092 Jul 2009Johnson Kristin DVessel Sealing Instrument
US20100030205 *12 Oct 20094 Feb 2010Herzon Garrett DThermal cautery surgical forceps
US20100063502 *11 Sep 200811 Mar 2010Black & Black Surgical, Inc.Monopolar electrosurgical instrument
US20100152723 *25 Nov 200917 Jun 2010Tyco Healthcare Group, LpMethods and apparatus for coagulating and/or constricting hollow anatomical structures
US20110144642 *1 Nov 201016 Jun 2011Tyco Healthcare Group, LpMethod and apparatus for coagulating and/or constricting hollow anatomical structures
US20110166518 *20 Ago 20107 Jul 2011Tyco Healthcare Group, L.P.Apparatus and methods for treating hollow anatomical structures
US20110166519 *20 Ago 20107 Jul 2011Tyco Healthcare Group, L.P.Apparatus and methods for treating hollow anatomical structures
US20110196368 *17 Feb 201111 Ago 2011Covidien AgOpen Vessel Sealing Instrument
USD68022012 Ene 201216 Abr 2013Coviden IPSlider handle for laparoscopic device
USRE40863 *22 Oct 199321 Jul 2009Boston Scientific Scimed, Inc.Apparatus and method for sealing vascular punctures
EP2436330A1 *30 Sep 20114 Abr 2012Tyco Healthcare Group, LPVessel sealing instrument
WO1983002389A1 *10 Ene 198321 Jul 1983Gerrida BoltonFacial hair removal appliance
WO1993008741A1 *14 Oct 199213 May 1993Medical Scientific, Inc.Electrosurgical clip applicator
Clasificaciones
Clasificación de EE.UU.606/42, 200/505, 606/52, 606/40
Clasificación internacionalA61B18/14, A61B18/00
Clasificación cooperativaA61B2018/00928, A61B18/1442
Clasificación europeaA61B18/14F