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Número de publicaciónUS20040267310 A1
Tipo de publicaciónSolicitud
Número de solicitudUS 09/972,594
Fecha de publicación30 Dic 2004
Fecha de presentación5 Oct 2001
Fecha de prioridad20 Oct 2000
También publicado comoCA2426206A1, CA2426206C, CA2708384A1, CA2708384C, DE60141851D1, EP1349503A2, EP1349503B1, EP1349503B8, EP2191778A1, EP2191778B1, US7398907, US7611038, US7824426, US7926692, US8123101, US8684249, US8905287, US9517066, US20040006372, US20060124688, US20080061109, US20100133321, US20110108603, US20110168756, US20120193390, US20140183243, WO2002032322A2, WO2002032322A3
Número de publicación09972594, 972594, US 2004/0267310 A1, US 2004/267310 A1, US 20040267310 A1, US 20040267310A1, US 2004267310 A1, US 2004267310A1, US-A1-20040267310, US-A1-2004267310, US2004/0267310A1, US2004/267310A1, US20040267310 A1, US20040267310A1, US2004267310 A1, US2004267310A1
InventoresDavid Racenet, Hanspeter Bayer, Scott Cunningham
Cesionario originalRacenet David C, Bayer Hanspeter R, Scott Cunningham
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Directionally biased staple and anvil assembly for forming the staple
US 20040267310 A1
Resumen
In accordance with the present disclosure a directionally biased staple is provided for use in all types of surgical staplers having anvil structure against which the staple is formed. The directionally biased staple may be constructed in a wide variety of cross-sectional configurations including rectangular, elliptical, trapezoidal, etc. All of the configurations are distinguished by having a bending region requiring more force to twist or malform the staple than is required to properly form the staple. Preferably, these staples have Moment of Inertia Ratios on the order of between about 1.1 to about 3.0. The staple preferably corresponds in other respects to conventional formed staples, i.e. having at least a pair of leg members interconnected by a crown portion wherein the leg members are formed by direct contact with the anvil. An anvil assembly is also provided for minimizing the malformation of staples.
Imágenes(36)
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Reclamaciones(12)
What is claimed is:
1. An anvil assembly comprising:
an anvil plate having a tissue contact surface defining a plane and a plurality of anvil pockets formed therein, each of the anvil pockets having a central longitudinal axis and including first and second staple forming cups, each of the first and second staple forming cups having an outside portion and an inside portion, the inside portion of the first and second staple forming cups being positioned in close relation to each other on the central longitudinal axis of the anvil pocket, the outside portion of the first and second staple forming cups being positioned in spaced relation to each other on the central longitudinal axis of the anvil pocket, each of the first and second cups being defined by sidewalls and an elongated base surface extending along the central longitudinal axis of the anvil pocket, wherein the sidewalls of each of the first and second cups form an acute angle with respect to the plane defined by the tissue contact surface of the anvil plate at the outside portion of the cup and become progressively more perpendicular towards the inside portion of the cup such that the first and second cups are substantially vertical through at least a portion of the inside portion of the cup.
2. An anvil assembly according to claim 1, wherein the elongated base surface is linear along an axis perpendicular to the longitudinal axis of the anvil pocket.
3. An anvil assembly according to claim 1, wherein the sidewalls defining the inside portion of each cup are substantially perpendicular to the plane defined by the tissue contact surface of the anvil plate such that a substantially vertical trap is formed in a central portion of each of the anvil pockets.
4. An anvil assembly according to claim 3, further including a channeling surface formed about at least a portion of each of the staple forming cups.
5. An anvil assembly according to claim 3, wherein the elongated base surface is concavely curved along the longitudinal axis of the anvil pocket.
6. An anvil assembly according to claim 5, wherein the concavely curved elongated base surface has a radius of curvature r, and the length of the substantially vertical trap is from about 0.5 r to about 2 r.
7. An anvil assembly according to claim 6, wherein the length of the substantially vertical trap is about r.
8. An anvil assembly according to claim 7, wherein the length of the substantially vertical trap is from about 0.030″ to about 0.100 inch.
9. An anvil assembly according to claim 8, wherein the length of the substantially vertical trap is about 0.050 inch.
10. An anvil assembly according to claim 3, wherein the substantially vertical trap extends along the entirety of the length of the inside portion of the staple forming cup.
11. An anvil assembly according to claim 10, wherein the substantially vertical trap starts in the central portion of the staple forming cup.
12. An anvil assembly according to claim 11, wherein the substantially vertical trap starts before the central portion of the staple forming cup.
Descripción
  • [0001]
    This application is a continuation-in-part of U.S. patent application Ser. No. 09/693,379 which was filed on Oct. 20, 2000 and is incorporated herein by reference.
  • BACKGROUND
  • [0002]
    1. Technical Field
  • [0003]
    This invention relates to formable surgical fasteners and, more particularly, to directionally biased formable staples for use in surgical staplers having anvil pockets for forming the staples. This invention also relates to anvil assemblies including anvil pockets for use with surgical staplers.
  • [0004]
    2. Background of Related Art
  • [0005]
    Surgical stapling instruments have become critical to many life saving surgical procedures. Surgical staples are usually mechanically inserted into tissue with surgical stapling instruments such as those known as anastomosis devices, including gastrointestinal anastomosis devices and transverse anastomosis devices. In such devices, the staples are loaded in one or more elongated rows into a cartridge. A mechanism for pushing, or driving the stapler is actuated to drive the staples through two or more sections of tissue toward a deforming anvil. At the conclusion of the driving operation, the legs of each staple are conventionally clamped or bent, by the anvil, to a closed configuration to complete the suture and join the tissue sections together. Gastrointestinal anastomosis-type devices drive and bend the staples aligned in a row sequentially in rapid sequence, while transverse anastomosis-type devices drive and bend all staples simultaneously. See, e.g. U.S. Pat. Nos. 4,520,817 and 4,383,634. Circular anastomosis-type devices simultaneously apply annular rows of staples to tissue. See, e.g. U.S. Pat. No. 4,304,236.
  • [0006]
    One type of conventional staple 20, shown in FIGS. 1-3, used with both gastrointestinal anastomosis and transverse anastomosis-type surgical stapling devices is made of stainless steel or titanium. The undeformed staple 20 (FIG. 1) is generally U-shaped and includes a back span 22 and two legs 24 depending substantially perpendicularly from the back span. Each leg 24 has a sharp chiseled end point 26 for piercing body organs or tissue. The chisel point also creates torque in the staple, allowing it to form. The staple penetrates the tissue from one side to engage an anvil spaced apart and located at an opposing side of the tissue. The staple is bent by having the legs engage and follow an anvil 25 to form a B-shaped closed staple 28 as shown in FIG. 2. In this closed configuration tissue is compressed between the legs and backspan of the staple.
  • [0007]
    Because of their substantially circular cross-section (FIG. 3), these conventional staples require approximately the same amount of force to form the staple into its final shape as is required to twist or malform it.
  • [0008]
    For example, referring back to FIG. 3, a conventional round cross section staple has a moment of inertia in the x forming dimension (Ix) given by the equation:
  • I x r 4
  • [0009]
    Its moment of inertia in the y twisting dimension (Iy) is given by the same equation:
  • I y r 4
  • [0010]
    Using a round wire stock of uniform 0.009 in diameter (r=0.0045), I x = I y = 1 / 4 _ ( .0045 ) 4 = 3.22 × 10 - 10 in 4
  • [0011]
    The Moment of Inertia Ratio, given by the equation:
  • [0012]
    is Iy/Ix 3.22 × 10 - 10 in 4 3.22 × 10 - 10 in 4 = 1
  • [0013]
    In order to insure accurate and consistent formation of these conventional staples, considerable research and development has been conducted in the areas of forming and driving structures. For example, anvils have been developed with specific coatings and/or structure, see, e.g. U.S. Pat. Nos. 5,173,133 and 5,480,089. Also, staple cartridges have been configured with driver structure to balance forces encountered during staple formation. See, commonly assigned U.S. Pat. No. 4,978,049 to Green. Thus, to control and insure consistent staple formation without twisting or deformation, extremely strict manufacturing tolerances have been implemented.
  • [0014]
    Other types of staples for different types of instruments are also found in the prior art. Some have non-circular cross-section. FIGS. 4, 4A and 4B illustrate by way of example a staple of this type marketed by United States Surgical of Norwalk, Conn. for use with its MULTIFIRE ENDO HERNIA and ENDO UNIVERSAL 65 staplers. The anvil in these staplers, as shown in FIGS. 4C and 4D, is adjacent the backspan of the staple as tissue is approached from only one side. Unlike the staples described above which are formed by contact of the staple legs with anvil pockets, these staple legs are bent around an anvil abutting the backspan. This staple has a side portion H with a height dimension greater than the dimension of the base portion B (i.e. 0.020 in vs. 0.015 in.).
  • [0015]
    The Moment of Inertia Ratio is given by the equation: Moment of Inertia Ratio = Iy Ix = Moment of Inertia Twisting Axis Moment of Inertia A bout Forming Axis
  • [0016]
    where Ix=({fraction (1/12)})bh3 and Iy=({fraction (1/12)})hb3, with h=0.020 in. and b=0.015 in.
  • [0017]
    Thus, Ix=({fraction (1/12)})(0.015)(0.020)3=1.0×10−8 in4, and
  • [0018]
    Iy=({fraction (1/12)})(0.020)(0.015)3=6.0×10−9 in4.
  • [0019]
    Accordingly, Moment of Inertia Ratio = 6.01 × 10 - 9 in 4 1.10 × 10 - 8 in 4 = .60 / 1 = .60
  • [0020]
    This staple is specifically configured to accommodate twisting during staple formation to permit the legs of the staple to cross as shown in FIG. 4E. Thus, it is engineered so the force to form the staple is slightly greater than the force to malform or twist the staple. The forming is accomplished by bending the staple legs around an anvil positioned adjacent the inner surface 32 of the backspan 34.
  • [0021]
    U.S. Pat. No. 5,366,479 describes a hernia staple with adjacent anvil having a height of 0.38 mm and a thickness of 0.51 mm. This staple is formed the same way as in FIGS. 4C and 4D. The moment of inertia ratio of this staple in accordance with the foregoing formula is as follows: I x = ( 1 / 12 ) ( .51 ) ( .38 ) 3 = 2.33 × 10 - 3 I y = ( 1 / 12 ) ( .38 ) ( .51 ) 3 = 4.2 × 10 - 3 Moment of Inertia Ratio = 4.2 × 10 - 3 2.33 × 10 - 3 = 1.8
  • [0022]
    This staple for use as described would actually result in greater force to produce the desired shape. In fact, the staple legs would likely contact each other before crossing over into their crossed configuration.
  • [0023]
    Thus, it is apparent that this type of hernia staple, i.e. where the anvil is adjacent the backspan as the tissue is approached from only one side, is quite different than the staple of the present invention, e.g. the B-shaped staple, wherein the legs penetrate through the tissue to contact anvil pockets. These anvil pockets direct the staple legs to form the staple into a closed configuration. Thus staple configuration and considerations of twisting, bending and staple formation of these hernia staples are inapplicable to these considerations for anvil pocket directed staples, such as the B-shaped staples.
  • [0024]
    It would therefore be desirable to provide a staple configuration for a staple designed to penetrate tissue and contact an anvil pocket on the opposing side of tissue, which, in complement with conventional cartridge and anvil technology, enhances correct staple formation while reducing twisting/malformation caused by misalignment or unusual tissue while minimizing reliance on strict manufacturing tolerances. It would also be desirable to provide an anvil assembly which would minimize staple malformations by misalignment or twisting during formation of the staple.
  • SUMMARY
  • [0025]
    In accordance with the present disclosure a directionally biased staple is provided for use in surgical staplers having anvil structure spaced from the cartridge and having anvil pockets against which the staple is formed as the legs are forced into contact with the anvil. The directionally biased staple may be constructed in a wide variety of cross-sectional configurations including rectangular, elliptical, trapezoidal, etc. All of the configurations are distinguished by having a bending region requiring more force to twist or malform the staple than is required to properly form the staple. Preferably, these staples have Moment of Inertia Ratios on the order of between about 1.1 to about 3.0. The staple preferably corresponds in other respects to conventionally formed staples, i.e. having at least a pair of leg members interconnected by a crown portion wherein the leg members come into contact with and are formed by the anvil.
  • [0026]
    An anvil assembly is also provided which includes a tissue engaging surface and a plurality of staple pockets formed therein and configured to improve the formation of a staple during formation of the staple. Each staple pocket includes a pair of staple forming cups and a channeling surface positioned at least partially about each cup. Each cup includes an inside portion and an outside portion. The inside portion of each cup is positioned adjacent the inside portion of the other cup. Each cup includes a sidewall which defines an angle with respect to the tissue engaging surface which approaches perpendicular in a direction moving from the outside of the cup portion towards the inside portion of the cup. The sidewall defining at least the inside portion of each cup is substantially perpendicular to the tissue engaging surface of the anvil assembly such that each staple forming pocket defines a substantially vertical trap for minimizing misalignment and malformation of a staple.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0027]
    Various preferred embodiments are described herein with reference to the drawings, wherein:
  • [0028]
    [0028]FIG. 1 is a side view of a conventional staple as known in the art;
  • [0029]
    [0029]FIG. 2A is a side view of the staple of FIG. 1 formed into a “B” configuration;
  • [0030]
    [0030]FIGS. 2B, 2C and 2D illustrate the staple of FIG. 2 being formed as the legs, after penetrating tissue, come into contact with the anvil pockets;
  • [0031]
    [0031]FIG. 3 is a cross-sectional view of the staple of FIG. 1 taken along line 3-3;
  • [0032]
    [0032]FIG. 4 is a perspective view of a conventional rectangular cross-section staple as known in the art which is formed around an anvil contacted by the backspan;
  • [0033]
    [0033]FIG. 4A is a side view of the staple of FIG. 4.
  • [0034]
    [0034]FIG. 4B is a cross-sectional view of the staple of FIG. 4 taken along line 4B-4B;
  • [0035]
    [0035]FIGS. 4C, 4D and 4E illustrate the staple of FIG. 4 being formed as the legs are bent by the pusher and the backspan is held against the anvil;
  • [0036]
    [0036]FIG. 5 is a side view of a directionally biased staple in accordance with the present disclosure;
  • [0037]
    [0037]FIG. 6 is a perspective view of the staple of FIG. 5;
  • [0038]
    [0038]FIG. 7 is a top view of the staple of FIG. 5;
  • [0039]
    [0039]FIG. 8 is a cross-sectional view of the staple of FIG. 5 taken along line 8-8;
  • [0040]
    [0040]FIG. 9A is a side view of the staple of FIG. 5 after it has been deformed to a “B” configuration;
  • [0041]
    [0041]FIG. 9B is an end view showing the coplanarity of the AB@ sections of the staple of FIG. 9A;
  • [0042]
    [0042]FIGS. 10AB 10F are side views showing staple formation of the staple of FIG. 5 as the staple penetrates tissue and the legs come into contact with the anvil pockets;
  • [0043]
    [0043]FIG. 11A graphically illustrates the comparison of the mean twist (in inches) vs the offset of the conventional staple of FIG. 1 and the novel staple of FIG. 5.
  • [0044]
    [0044]FIG. 11B graphically illustrates the comparison of the mean twist (in %) vs the offset of the conventional staple of FIG. 1 and the novel staple of FIG. 5;
  • [0045]
    [0045]FIG. 12A is a cross-sectional view of another embodiment of a directionally biased staple in accordance with the present disclosure;
  • [0046]
    [0046]FIG. 12B is a cross-sectional view of another embodiment of a directionally biased staple in accordance with the present disclosure;
  • [0047]
    [0047]FIG. 12C is a cross-sectional view of another embodiment of a directionally biased staple in accordance with the present disclosure;
  • [0048]
    [0048]FIG. 13 is a cross-sectional view of another embodiment of a directionally biased staple in accordance with the present disclosure;
  • [0049]
    [0049]FIG. 14 is a cross-sectional view of another embodiment of a directionally biased staple in accordance with the present disclosure;
  • [0050]
    [0050]FIG. 15 is a perspective view of an endoscopic gastrointestinal anastomosis-type device for firing the staple of FIG. 5;
  • [0051]
    [0051]FIGS. 16-16C are enlarged views showing the staple formation by the anvil pockets of the instrument of FIG. 15;
  • [0052]
    [0052]FIG. 17 is a perspective view of a gastrointestinal anastomosis-type device for firing the staple of FIG. 5;
  • [0053]
    [0053]FIG. 18 is a perspective view of a transverse anastomosis-type device for firing the staple of FIG. 5;
  • [0054]
    [0054]FIG. 18A is an enlarged view of the staple forming anvil and a portion of the disposable loading unit of the device of FIG. 18;
  • [0055]
    [0055]FIGS. 18B and 18C are enlarged views showing the staple formation by the anvil pockets of the instrument of FIG. 18A;
  • [0056]
    [0056]FIG. 19 is a perspective view of a circular anastomosis-type device for firing the staple of FIG. 5;
  • [0057]
    [0057]FIG. 19A is an enlarged view of the staple forming anvil and a portion of the disposable loading unit of the device of FIG. 19;
  • [0058]
    [0058]FIGS. 19B and 19C are enlarged views showing the staple formation by the anvil pockets of the instrument of FIG. 19A;
  • [0059]
    [0059]FIG. 20 is a perspective view of another embodiment of a directionally biased staple in accordance with the present disclosure;
  • [0060]
    [0060]FIG. 21 is a cross-sectional view taken along section lines 21-21 of FIG. 20;
  • [0061]
    [0061]FIG. 22 is a front elevational view of the directionally biased staple shown in FIG. 20 after the staple has been deformed to the B-shaped configuration;
  • [0062]
    [0062]FIG. 23 is a side elevational view from the direction of lines 23-23 of FIG. 22;
  • [0063]
    [0063]FIG. 24 is a perspective view of an anvil adapted for attachment to an endoscopic gastrointestinal anastomosis-type device;
  • [0064]
    [0064]FIG. 25 is an enlarged view of the indicated area of detail shown in FIG. 24;
  • [0065]
    [0065]FIG. 26 is a top partial cutaway view of the anvil shown in FIG. 24;
  • [0066]
    [0066]FIG. 27 is a cross-sectional view taken along section lines 27-27 of FIG. 26;
  • [0067]
    [0067]FIG. 28 is a cross-sectional view taken along section lines 28-28 of FIG. 26;
  • [0068]
    [0068]FIG. 29 is another enlarged top view of a portion of the anvil assembly shown in FIG. 25;
  • [0069]
    [0069]FIG. 29a is a cross-sectional view taken along section lines 29 a-29 a of FIG. 29;
  • [0070]
    [0070]FIG. 29b is a cross-sectional view taken along section lines 29 b-29 b of FIG. 29;
  • [0071]
    [0071]FIG. 29c is a cross-sectional view taken along section lines 29 c-29 c of FIG. 29;
  • [0072]
    [0072]FIG. 29d is a cross-sectional view taken along section lines 29 d-29 d of FIG. 29;
  • [0073]
    [0073]FIG. 29e is a cross-sectional view taken along section lines 29 e-29 e of FIG. 29;
  • [0074]
    [0074]FIG. 29f is a cross-sectional view taken along section lines 29 f-29 f of FIG. 29; and
  • [0075]
    [0075]FIG. 30 is a graph illustrating force vs. deformation of a staple being formed in a pocket of the anvil shown in FIG. 24.
  • DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
  • [0076]
    Preferred embodiments of the presently disclosed directionally biased staple will now be described in detail with reference to the drawings, in which like reference numerals designate identical or corresponding elements in each of the several views.
  • [0077]
    A directionally biased staple 50 in accordance with one embodiment of the present disclosure is illustrated in FIGS. 5-9. Referring specifically to FIGS. 5-7, staple 50 has a U-shaped configuration and includes a pair of substantially parallel legs 52 connected by a crown portion 54 with a bending region 55 therebetween. The legs are shown perpendicular to the backspan and are substantially straight along their length. Tissue penetrating portions 56 are preferably formed adjacent a distal end of legs 52. These penetrating portions 56 may be of any known configuration which facilitates entry of the legs 52 into tissue to be stapled. As shown in FIG. 5, the tissue penetrating portions 56 are preferably formed in a chisel shape with points 58 adjacent inner facing sides of legs 52.
  • [0078]
    In this embodiment, the cross section is preferably formed in a substantially rectangular configuration as shown in FIG. 8 with x designating the major base dimension (b) and y designating the minor height dimension (h) of the crown portion of the staple when positioned in an inverted-U configuration as shown in FIG. 5. As used herein, the staple is intended to be formed about the x dimension (x axis). Thus, as illustrated in FIGS. 10A-10F staple 50 is formed downward relative to the page.
  • [0079]
    This cross-sectional configuration may be achieved by any known method including extrusion, rolling, coining, etc. Preferably, this configuration is accomplished by flat rolling round wire stock on opposing sides. In the fabrication process, the stock can be pre-rolled by the wire manufacturer or may be round wire stock which is rolled into the desired cross-sectional configuration by the staple manufacturer.
  • [0080]
    Iy of the cross-sectional configuration of the novel staple illustrated in FIG. 5 is given by the equation:
  • I y=({fraction (1/12)})(b)3(h)
  • [0081]
    For a base dimension b=0.010 in and a height dimension h=0.008 in,
  • I y=({fraction (1/12)})(0.010)3(0.008)
  • I y=6.67×10−10 in4
  • [0082]
    Ix is given by the equation:
  • I x=({fraction (1/12)})(b)(h)3
  • I x=({fraction (1/12)})(0.010)(0.008)3
  • I x=4.26×10−10 in4
  • [0083]
    The Moment of Inertia ratio (Iy/Ix) is thus 6.67 × 10 - 10 in 4 4.26 × 10 - 10 in 4 = 1.57
  • [0084]
    Similarly, for a base dimension b=0.012 in and a height dimension h=0.008 in, Ix=1.0×10−9 in4 and Iy=5.12×10−10 in4, yielding a Moment of Inertia ratio of 1.95.
  • [0085]
    Given that Iy defines the dimension corresponding to proper formation of the staple when fired and Ix defines the dimension corresponding to twisting and/or malformation, it is readily apparent that the directionally biased configurations provide a “functionally similar” forming force as a conventional round staple while requiring up to twice as much force to twist or malform when compared to conventional staples. This novel staple provides a substantial improvement over conventional staples.
  • [0086]
    Table 1 below sets forth by way of example Moment of Inertia Ratios for a variety of sizes and types of novel directionally biased staples for use in surgical staplers. Clearly staples of other dimensions are contemplated so long as they have the novel moment of inertia ratio described herein.
    Iy/Ix
    Moment of
    Staple Height Base Inertia
    Size (in.) (in.) Iy Ix Ratio
    3.5 mm. .007 .010 5.83 × 10−10 2.86 × 10−10 _2.04/1
    Titanim
    3.5 mm. .007 .0115 8.87 × 10−10 3.29 × 10−10 _2.70/1
    Stainless
    Steel
    3.8 mm. .007 .010 5.83 × 10−10 2.86 × 10−10 _2.04/1
    Stainless
    Steel
    4.8 mm. .009 .014 2.00 × 10−9  8.51 × 10−10 _2.35/1
    Titanim
    4.8 mm. .007 .0115 8.87 × 10−10 3.29 × 10−10 _2.70/1
    Titanim
  • [0087]
    Further, as illustrated below, for comparable size staples, the novel staple configuration provides increased resistance to twist without changing firing forces.
  • [0088]
    For example, twisting stress _b is defined by the equation: _b = M c Iy
  • [0089]
    with moment M kept constant at M=1 lb$in.
  • [0090]
    For a conventional round 0.009 in. diameter staple: M=1 lb$in; c=0.0045 in; and Ix=Iy=3.22×10−10 in4, so _b = ( 1.01 b in ) ( .0045 in ) 3.22 × 10 - 10 in 4 _b = 13 , 975 ksi
  • [0091]
    For the directionally biased staple of FIG. 8 having b=0.010 in and h=0.008 in: M=1.0 lb$in; c=0.005 in; and Iy=6.67×10−10 in4. _b = ( 1.01 b in ) ( .005 in ) 6.67 × 10 - 10 in 4 _b = 7 , 496 ksi
  • [0092]
    Thus, not only is this embodiment of the novel staple more resistant to twisting and/or malformation, e.g. 14,000 ksi for the conventional staple vs. 7,500 ksi for the novel staple, it also maintains minimal firing forces. The directionally biased staple is effectively desensitized against the effects of misalignment during staple formation while, at the same time maintaining a minimal firing force. This directionally intelligent design can reduce malformations caused by misalignment or twisting as well as reduce the need for very sensitive manufacturing tolerances for anvils and anvil forming cups, cartridges, etc.
  • [0093]
    The benefits of the novel staple can also be appreciated by reference to the graphs of FIGS. 11A and 11B. Since staples are forced through thick tissue and the staple cartridge and anvil can flex as tissue is compressed and can move slightly relative to another, this affects the point of contact between the staple leg points and the anvil. For example, if the anvil moves slightly out of alignment, the staple legs will contact a different point of the anvil which can affect uniform formation of the staple. Additionally, due to manufacturing tolerances, the staple points may not contact the anvil in the exact optimal location. Although such staple formation is clinically satisfactory and effective, the novel staple of the present application provides for more uniform formation of the row of staples and accommodates for manufacturing tolerances as it is more resistant to twisting. That is, the staple will have the tendency to bend in the direction of the thinner dimension which is desired since in this case the thinner dimension defines the desired bending direction. By relaxing manufacturing tolerances, the cost of manufacturing is reduced as well.
  • [0094]
    As shown in FIG. 11A, the prior art round staple, since the height and width are the same, can twist in different directions if there is misalignment between the staple and anvil. Thus the direction of twisting cannot be controlled. In contrast, the Moment of Inertia ratio of the novel staple of the present invention results in reduced twisting. Note that not only is there more twisting initially with the prior art staple, but as the offset increases, the amount of twisting in the current staple is greater at any degree of offset. The percentage of twist is defined as x/d x 100% wherein x is the distance between the centerline of the staple and d is the diameter (or width) of the staple.
  • [0095]
    [0095]FIGS. 12-14 illustrate alternate directionally biased cross-sectional configurations in accordance with the disclosure. These cross-sectional configurations all have aspect ratios in the range of about 1.1 to about 3.0 wherein the x axis designates the major base dimension (b) and the y-axis designates the minor height dimension (h) in each of these cross-sections.
  • [0096]
    [0096]FIGS. 15-19 disclose by way of example several types of surgical staplers which can utilize the novel directionally biased staples. Other types of surgical staplers are also contemplated.
  • [0097]
    [0097]FIG. 15 illustrates a known endoscopic sequential stapler 100 including an anvil 110 and a staple cartridge 102 having novel directionally biased staples 50 loaded into the staple cartridge 102 thereof. Referring to FIGS. 16-16C, with anvil 110 and staple cartridge 102 in an open position (FIG. 16), tissue 120 is positioned between anvil 110 and cartridge 102 (FIG. 16A). Anvil 110 is now pivoted in the direction indicated by arrow “A” towards cartridge 102 (FIG. 16B) in a known manner to compress tissue 120 between anvil 110 and staple cartridge 102. Thereafter, staples 50 are ejected from staple cartridge 102 into pockets 122 formed on anvil 110. Pockets 122 deform staples 50 into a substantially B-shaped configuration (FIG. 16C). Anvil 110 can now be pivoted to the open position to permit tissue 120 to be removed from stapler 100.
  • [0098]
    [0098]FIG. 17 illustrates a known open type sequential stapler 150 including an anvil 152 and a staple cartridge 154 having novel directionally biased staples loaded therein. Ejection of staples from stapler occurs in a manner similar to that disclosed in FIGS. 16-16C and will not be discussed in further detail herein.
  • [0099]
    [0099]FIG. 18 illustrates a known transverse type surgical stapler 200 including an anvil 210 and a staple cartridge 202 having novel directionally biased staples 50 loaded into the staple cartridge 202. Referring to FIGS. 18A-18C, with anvil 210 and staple cartridge 202 in an open position, tissue 220 is positioned therebetween (FIG. 18A). Anvil 210 is now moved in the direction indicated by arrow “B” to an approximated position towards cartridge 202 (FIG. 18B) in a known manner to compress tissue 220 between anvil 210 and staple cartridge 202. Thereafter, staples 50 are ejected from staple cartridge 202 into pockets 222 formed on anvil 210. Pockets 222 deform staples 50 into a substantially B-shaped configuration (FIG. 18C). Anvil 210 can now be moved to the open position to permit tissue 220 to be removed from stapler 200.
  • [0100]
    [0100]FIG. 19 illustrates a circular stapler 300 including an anvil 310 and a staple cartridge 302 having the novel directionally biased staples 50 loaded in the staple cartridge 302. Referring to FIGS. 19A-19C, with anvil 310 and staple cartridge 302 in an open position, tissue 320 is positioned therebetween (FIG. 19A). Anvil 310 is now moved towards cartridge 302 in a known manner to compress tissue 320 between anvil 310 and staple cartridge 302 (FIG. 19B). Thereafter, staples 50 are ejected from staple cartridge 302 into pockets 322 formed on anvil 310. Pockets 322 deform staples 50 into a substantially B-shaped configuration (FIG. 19C). Anvil 110 can now be moved to the open position to permit tissue 320 to be removed from stapler 300.
  • [0101]
    [0101]FIGS. 20-23 illustrate another preferred embodiment of the presently disclosed directionally biased staple shown generally as 400. Directionally biased staple 400 includes a crown portion 410 and a pair of outwardly angled legs 412 with a bending region 414. Legs 412 define an angle about 5″ to about 15″ with crown portion 410. Preferably, legs 412 define an angle of about 9″ with respect to crown portion 410. Alternately, other angle orientations are envisioned. The angle of legs 412 function to retain the staple within staple receiving slots of a staple cartridge prior to use, i.e., legs 412 frictionally engage the slot walls of a staple cartridge to retain the staple within a cartridge slot. Tissue penetrating portions 416 are formed at the distal end of legs 412 and preferably have a chisel shape with points 418 adjacent inner facing sides of legs 412. Referring to FIG. 21, staple 400 has a cross-section having flat top and bottom surfaces 420 and 422 and semi-circular side surfaces 424 and 426. Preferably, this cross-section is achieved by rolling top and bottom surfaces of wire stock. Alternately, other methods including extrusion and coining may be used to form staple 400. Using the appropriate formulas, the Moment of Inertia ratio of staple 400 is approximately 2. Alternately, the dimensions of staple 400 may be varied in a manner to achieve a Moment of Inertia ratio within the preferred range of about 1.1 to about 3. FIGS. 22 and 23 illustrate staple 400 in the formed state wherein staple 400 assumes a B-shaped configuration.
  • [0102]
    There are various methods of manufacturing the surgical staple. For example, the method could include the steps of flat rolling the wire stock to form at least one flat surface thereon and cutting a length of round wire stock to a predetermined length corresponding to a desired length of a finished staple or extruding the stock with a flat surface. The stock is bent into a form having a backspan and a pair of legs wherein the staple has an aspect ratio of between about 1.1 to about 3.0.
  • [0103]
    [0103]FIGS. 24-28 illustrate an anvil 500 which is configured for attachment to a transverse-type surgical stapler such as shown in FIG. 18. Anvil 500 includes a plurality of staple pockets 510 formed in the surface of the anvil. Each staple pocket 510 includes first and second staple forming cups 512 and 514 and a channeling surface 516 disposed around each of the staple forming cups. An anvil including such a staple forming pocket has been disclosed in U.S. Pat. No. 5,480,089 filed Aug. 19, 1994, the entirety of which is incorporated herein by reference. Anvil 500, including staple forming cups 512 and 514 and channeling surface 516 can be adapted for use with any of the surgical stapling devices described in the specification above including endoscopic gastrointestinal anastomosis-type devices (FIG. 15), gastrointestinal anastomosis-type devices (FIG. 17), transverse anastomosis-type devices (FIG. 18) and circular anastomosis-type devices (FIG. 19). U.S. patent application Ser. No. 09/687,815, filed Oct. 13, 2000, discloses a transverse anastomosis-type device including such an anvil assembly. This application is incorporated herein in its entirety by reference.
  • [0104]
    [0104]FIGS. 29-29f illustrate in greater detail anvil assembly 500 shown in FIGS. 24-28. Anvil assembly 500 includes an anvil plate 508 defining a tissue contact surface 502 and having a plurality of staple pockets 510 formed in surface 502 of the anvil plate 508. As discussed above, each staple pocket 510 includes first and second staple forming cups 512 and 514 and a channeling surface 516 formed about at least a portion (preferably the majority) of each of the staple forming cups 512 and 514. Each staple forming cup 512 and 514 is defined by sidewalls 520 and an elongated base surface 518. As shown in FIG. 29a each staple forming cup 512, 514 includes an outside portion O, a central portion C, and an inside portion I. Outside portion O extends from the outer extent of the forming cup (shown in FIG. 30f) to central portion C of the forming cup at and about the deepest portion of the forming cup (see the ends of lead lines of reference numbers 512 and 514 in FIG. 28). Inside portion I of each forming cup extends from central portion C of the forming cup to the highest operative staple leg or tip engaging point at or near apex 515 of each pocket 510 (See FIG. 29a). Base surface 518 extends axially from adjacent the outer extent of the outside portions of each of the staple forming cups 512 and 514, as shown in FIG. 29f, through the central and inside portions of each of the staple forming cups 512 and 514 and terminates at or near the apex 515 of pocket 510 (e.g., see FIG. 29a).
  • [0105]
    Elongated base surface 518 is substantially linear, i.e., substantially flat (herein understood to include flat), along its transverse axis and is concavely or curved along its longitudinal axis. The substantially linear surface preferably corresponds to the shape of the points of a staple to be formed thereagainst. Since the preferred staple has substantially linear tips (See staple 400 in FIGS. 20-22), the preferred base surface for such a staple is substantially linear. This provides line-to-line contact between the flat surfaces of the staple tips and the substantially linear base surface. By providing a base surface having a shape that corresponds to the shape of the staple point, friction is reduced and galling of the staple tip during staple formation is minimized. The shape of base surface 518 may be altered to conform to the shape of the staple points of different staples, which may be rounded, triangular, etc.
  • [0106]
    In the preferred embodiment shown, sidewalls 520, which partly define staple forming cups 512 and 514, are angular as they extend from the lower portion of the channeling surface to base surface 518. Side walls 520 gradually become progressively more vertical (or perpendicular in relation to tissue contact surface 502) along elongated base surface 518 starting from the outer extent of outside portion O of cups 512 and 514 where sidewalls 520 are widely angular [relative to tissue contact surface 502 or to the vertical axis VA of the pocket (FIG. 30f)] towards and through central portion C and inside portion I of cups 512 and 514. Preferably, the central and inside portions of cups 512 and 514 are defined by substantially vertical (herein understood to include vertical) sidewalls 520, such that a substantially vertical trap 522 is formed at least in the central and inside portions of each staple forming cup. The substantially vertical trap can start at any suitable location along the longitudinal axis of staple forming cup 512, 514 (FIG. 30). While it is preferred that the trap begin in outside portion O of the staple forming cup before or when the first peak force occurs (FIG. 30), properly formed staples in accordance with the invention can also be obtained when the substantially vertical trap starts in the central or inside portion of the staple forming cup. Briefly, substantially vertical trap 522 functions to align and accurately form staples therein. The substantially vertical trap can be of any suitable length depending on, for example, the dimensions and configuration of the particular staple and staple forming cup, and the desired configuration of the finished staple. The length of substantially vertical trap 522 is preferably between about 0.5r and about 2r, where r is the radius of curvature of each pocket, and more preferably, the length of the vertical trap is about r. A preferred radius r is from about 0.030 inch to about 0.100 inch, more preferably about 0.050 inch, herein understood to include 0.054 inch.
  • [0107]
    Referring to FIG. 30, as a staple is formed against an anvil, the force applied to the staple typically will increase as the staple moves into the staple pocket until the force is sufficient to buckle or plastically deform the staple. This peak force applied to the staple is schematically illustrated in the graph shown in FIG. 30 by the letter AX@ and typically occurs first when the tips of the legs of a staple engage base surface 518 in the outside portion of cups 512 and 514, where the legs begin to plastically deform. The first peak force typically occurs when the tips of the staple legs strike base surface 518 and move approximately between the positions shown in FIGS. 10B and 10C. A second peak force identified by the letter AY@ in the graph shown in FIG. 30 is applied to the staple to bend the staple legs upwardly. The second peak force Y typically occurs when a portion of the legs of the staple is positioned in engagement with base surface 518, also in outside portion O, of cups 512 and 514 approximately between the positions shown in FIGS. 10D and 10E. Staple pockets 510 of anvil assembly 500 are preferably configured as a trough that preferably gradually funnels and directs movement of the staple tips and legs of a staple being formed into the substantially vertical trap at least by the time peak forces X and Y are reached. The substantially vertical trap captures the tips and the legs of the staples within and along the trap, preferably including during the peak loads of staple formation. Capturing the tip and legs of a staple herein means that at least a portion, preferably the base portion, of the sidewalls of the substantially vertical trap of the staple forming cup closely confines the staple tips and legs in a slip fit relationship to minimize lateral or transverse movement of the tips and legs and positively direct the staple through the substantially vertical trap portion of the staple forming cup. By doing so, malformation by misalignment or twisting of the staple is minimized or eliminated.
  • [0108]
    [0108]FIGS. 29b-29 f show that side walls 520 with base surface 518 form a trough that gradually funnels the tips and legs of a staple from outside portion O of cups 512 and 514 into a substantially vertical trap in the outside, central and inside portions O, C and I, respectively, of the cups, and terminates at or near apex 515 of cups 512 and 514.
  • [0109]
    [0109]FIG. 29f shows that the outside portion O of staple forming cup 514 is widely angled relative to tissue forming surface 502 or vertical axis VA to provide a large target area to receive the tips of the staple legs as they are fired into anvil pocket 510.
  • [0110]
    [0110]FIG. 29e, also taken through outside portion O of forming cup 514, shows that sidewalls 520 are at a sharper angle relative to vertical axis VA to more closely guide the staple tips and legs along forming cup 514.
  • [0111]
    [0111]FIG. 29d shows that the sidewalls 520 along inside portion I, although at an angle of about 8°, are substantially vertical relative to vertical axis VA. In FIGS. 29c and 29 b, the sidewalls are shown as vertical. Ideally and most preferably a major portion of sidewalls 520 of the substantially vertical traps are actually vertical. It is to be understood that in attempting to obtain a vertical sidewall, whether the sidewalls are actually vertical or are substantially vertical may depend on how the anvil pockets are formed. Preferably, for economic reasons and ease of manufacture, the anvil is formed from a thin sheet of metal and the pockets are stamped therein. Since there is some spring back, i.e., elastic deformation, during cup formation by stamping, the sidewalls of the cups will in some instances actually be substantially vertical. If the anvil is cast or machined, the sidewall typically truly will be vertical. Thus, in accordance with the invention, the object is to provide a trough that funnels and guides the staple tips and legs into an elongated substantially vertical trap that traps or captures and positively directs the staple tips and the legs within and along the substantially vertical trap in its path to or near the apex as the staple is formed. While it is preferred that the sidewalls of the staple forming cups that lead to the substantially vertical trap be angular, such is not essential. Such sidewalls and/or upper portions of the sidewalls along the substantially vertical trap can be arcuate (520′, FIG. 29g) or otherwise shaped, so long as enough of the height of the or a lower portion, e.g., “L”, of the sidewalls of the substantially vertical trap are substantially vertical in order to trap the staple in accordance with the invention. It is contemplated that “enough of the height of the or a lower portion of the sidewall” means that the height is at least about ½of the thickness or diameter of the particular staple being formed. It is contemplated that substantially vertical sidewalls are those that are less than about 20° relative to the vertical axis, preferably less than about 15° and more preferably less than about 10°.
  • [0112]
    While the parameters of the start, length, configuration and end of the vertical trap and the substantially vertical disposition of the sidewalls has been attempted to be explained, it is understood that these parameters can vary depending on various factors, for example, the starting staple configuration and its dimensions and desired final shape, so long as the principle of capturing the tips and legs of a staple in a substantially vertical trap is present or employed to capture and positively and direct the movement and direction of the staple to optimize proper staple formation.
  • [0113]
    The employment of substantially vertical traps in staple forming cups, especially those having a substantially linear base surface is especially advantageous for use in connection with the directionally biased staples disclosed herein, particularly those having substantially linear tips. This combination is particularly effective in compensating for variations in the staple manufacturing and forming systems to minimize the occurrence of malformed staples, including those malformed because of variations in the density of the tissue to be stapled, in staple shape, geometry, or material, and in the configuration of the staple tips, e.g., uneven angular or rounded.
  • [0114]
    Although specific embodiments of the present disclosure have been described above in detail, it will be understood that this description is merely for purposes of illustration. Various modifications of and equivalent structures corresponding to the disclosed aspects of the preferred embodiment in addition to those described above may be made by those skilled in the art without departing from the spirit of the present disclosure which is defined in the following claims, the scope of which is to be accorded the broadest interpretation so as to encompass such modifications and equivalent structures.
Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US3490675 *10 Oct 196620 Ene 1970United States Surgical CorpInstrument for placing lateral gastrointestinal anastomoses
US3494533 *10 Oct 196610 Feb 1970United States Surgical CorpSurgical stapler for stitching body organs
US3499591 *23 Jun 196720 Sep 1988 Título no disponible
US4281785 *21 Dic 19794 Ago 1981Dayco CorporationStapling apparatus and method and thermoplastic stables used therewith
US4319576 *26 Feb 198016 Mar 1982Senco Products, Inc.Intralumenal anastomosis surgical stapling instrument
US4425915 *26 Feb 198217 Ene 1984Ethicon, Inc.Surgical clip applier with in-line cartridge and interruptable biased feeder
US4427008 *26 Feb 198224 Ene 1984Ethicon, Inc.Multiple ligating clip applier with rocking escapement
US4438769 *15 Abr 198227 Mar 1984Pratt Clyde RMedical staple device
US4454875 *15 Abr 198219 Jun 1984Techmedica, Inc.Osteal medical staple
US4467805 *25 Ago 198228 Ago 1984Mamoru FukudaSkin closure stapling device for surgical procedures
US4531522 *20 Jun 198330 Jul 1985Ethicon, Inc.Two-piece tissue fastener with locking top and method for applying same
US4534351 *20 Oct 198213 Ago 1985Senmed, Inc.Ligator
US4548202 *20 Jun 198322 Oct 1985Ethicon, Inc.Mesh tissue fasteners
US4550870 *13 Oct 19835 Nov 1985Alchemia Ltd. PartnershipStapling device
US4589582 *23 Ago 198420 May 1986Senmed, Inc.Cartridge and driver assembly for a surgical stapling instrument
US4607638 *20 Abr 198426 Ago 1986Design Standards CorporationSurgical staples
US4632290 *17 Ago 198130 Dic 1986United States Surgical CorporationSurgical stapler apparatus
US4724839 *18 Sep 198616 Feb 1988Ethicon, Inc.Surgical fastening systems made from polymeric materials
US4767044 *4 Oct 198530 Ago 1988United States Surgical CorporationSurgical fastener applying apparatus
US4787387 *13 Mar 198729 Nov 1988American Cyanamid CompanySurgical closure element
US4805823 *18 Mar 198821 Feb 1989Ethicon, Inc.Pocket configuration for internal organ staplers
US4878608 *6 Dic 19887 Nov 1989M.G.S. Japan Co., Ltd.Hand stapler for use with a bar of ornamented staples
US4887601 *6 Nov 198719 Dic 1989Ophthalmic Ventures Limited PartnershipAdjustable surgical staple and method of using the same
US4955898 *30 Oct 198911 Sep 1990Matsutani Seisakusho Co., Ltd.Surgical staple
US5007921 *26 Oct 198916 Abr 1991Brown Alan WSurgical staple
US5026390 *20 Sep 199025 Jun 1991Brown Alan WSurgical staple
US5111987 *14 May 199012 May 1992Moeinzadeh Manssour HSemi-disposable surgical stapler
US5221036 *11 Jun 199222 Jun 1993Haruo TakaseSurgical stapler
US5246443 *28 Abr 199221 Sep 1993Christian MaiClip and osteosynthesis plate with dynamic compression and self-retention
US5342396 *2 Mar 199330 Ago 1994Cook Melvin SStaples
US5350400 *30 Jun 199227 Sep 1994American Cyanamid CompanyMalleable, bioabsorbable, plastic staple; and method and apparatus for deforming such staple
US5395030 *2 Jun 19937 Mar 1995Olympus Optical Co., Ltd.Surgical device for stapling and fastening body tissues
US5415334 *5 May 199316 May 1995Ethicon Endo-SurgerySurgical stapler and staple cartridge
US5454814 *2 Sep 19933 Oct 1995Orthomed SarlSurgical clamp and clamp driving device
US5480089 *19 Ago 19942 Ene 1996United States Surgical CorporationSurgical stapler apparatus with improved staple pockets
US5486187 *4 Ene 199423 Ene 1996Schenck; Robert R.Anastomosis device and method
US5489058 *2 May 19946 Feb 1996Minnesota Mining And Manufacturing CompanySurgical stapler with mechanisms for reducing the firing force
US5630541 *21 Dic 199420 May 1997Ethicon Endo-Surgery, Inc.Surgical stapler and staple cartridge
US5632432 *19 Dic 199427 May 1997Ethicon Endo-Surgery, Inc.Surgical instrument
US5702048 *18 Mar 199430 Dic 1997Eberlin; ReneDevice for microanatomosis of blood vessels
US5725554 *8 Oct 199310 Mar 1998Richard-Allan Medical Industries, Inc.Surgical staple and stapler
US5732872 *6 Feb 199631 Mar 1998Heartport, Inc.Surgical stapling instrument
US5735444 *23 Sep 19967 Abr 1998Arrow Fastener Co., Inc.Insulated staple driving system
US5749896 *21 Ene 199712 May 1998Cook; Melvin S.Staple overlap
US5758812 *26 Nov 19962 Jun 1998Raffoni; GiuseppeLaminar staple for joining at an angle profiled strips
US5814055 *12 Sep 199629 Sep 1998Ethicon Endo-Surgery, Inc.Surgical clamping mechanism
US5890642 *30 Dic 19976 Abr 1999Sato; HisaoClip driver
US5941890 *26 Jun 199824 Ago 1999Ethicon Endo-Surgery, Inc.Implantable surgical marker
US5947363 *20 Mar 19987 Sep 1999Heartport, Inc.Surgical stapling instrument and method thereof
US5947999 *3 Dic 19967 Sep 1999Groiso; Jorge A.Surgical clip and method
US5951576 *2 Mar 199814 Sep 1999Wakabayashi; AkioEnd-to-side vascular anastomosing stapling device
US5972023 *5 Ago 199626 Oct 1999Eva CorporationImplantation device for an aortic graft method of treating aortic aneurysm
US5993476 *9 Dic 199830 Nov 1999Groiso; Jorge A.Surgical clip and method
US6083242 *17 Feb 19994 Jul 2000Holobeam, Inc.Surgical staples with deformation zones of non-uniform cross section
US6306150 *2 Oct 200023 Oct 2001Scion International, Inc.Surgical clips for surgical instrument for stapling and cutting blood vessels and organic structures
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US769054728 May 20086 Abr 2010Tyco Healthcare Group LpTool assembly for a surgical stapling device
US77219353 Oct 200625 May 2010Tyco Healthcare Group LpSurgical stapling device
US77265376 Oct 20031 Jun 2010Tyco Healthcare Group LpSurgical stapler with universal articulation and tissue pre-clamp
US777077412 May 200810 Ago 2010Tyco Healthcare Group LpSurgical stapler
US77800556 Abr 200524 Ago 2010Tyco Healthcare Group LpLoading unit having drive assembly locking mechanism
US77892836 Jun 20087 Sep 2010Tyco Healthcare Group LpKnife/firing rod connection for surgical instrument
US77938141 Dic 200814 Sep 2010Tyco Healthcare Group LpSurgical stapling device
US7815092 *27 Jul 200619 Oct 2010Power Medical Interventions, LlcStaple pocket arrangement for surgical stapler
US781989631 Ago 200926 Oct 2010Tyco Healthcare Group LpTool assembly for a surgical stapling device
US78455356 Oct 20067 Dic 2010Tyco Healthcare Group LpSurgical instrument having a plastic surface
US785718428 Oct 200928 Dic 2010Tyco Healthcare Group LpTool assembly for surgical stapling device
US786652527 Ago 200811 Ene 2011Tyco Healthcare Group LpSurgical instrument having a plastic surface
US78915326 Ago 200822 Feb 2011Tyco Healthcare Group LpSurgical stapler
US789621423 Sep 20081 Mar 2011Tyco Healthcare Group LpTissue stop for surgical instrument
US791389322 Dic 200929 Mar 2011Tyco Healthcare Group LpSurgical stapler
US79423036 Jun 200817 May 2011Tyco Healthcare Group LpKnife lockout mechanisms for surgical instrument
US795468530 Oct 20087 Jun 2011Tyco Healthcare Group LpArticulation and firing force mechanisms
US80115537 Jun 20106 Sep 2011Mastri Dominick LSurgical stapler
US80159764 Abr 201113 Sep 2011Tyco Healthcare Group LpKnife lockout mechanisms for surgical instrument
US803343813 Oct 200611 Oct 2011Tyco Healthcare Group LpSurgical stapling device
US803344228 Nov 200711 Oct 2011Tyco Heathcare Group LpTool assembly for a surgical stapling device
US805678813 Ene 201115 Nov 2011Tyco Healthcare Group LpSurgical stapler
US806157616 Oct 200922 Nov 2011Tyco Healthcare Group LpSurgical instrument
US80615778 Oct 201022 Nov 2011Tyco Healthcare Group LpTool assembly for a surgical stapling device
US807486214 May 201013 Dic 2011Tyco Healthcare Group LpKnife/firing rod connection for surgical instrument
US809175321 Oct 201010 Ene 2012Tyco Healthcare Group LpSurgical stapling device
US809175422 Jul 201010 Ene 2012Tyco Healthcare Group LpSurgical fastener applying apparatus
US81134109 Feb 201114 Feb 2012Ethicon Endo-Surgery, Inc.Surgical stapling apparatus with control features
US811820721 Abr 201021 Feb 2012Tyco Healthcare Group LpSurgical stapling device
US81279768 May 20096 Mar 2012Tyco Healthcare Group LpStapler cartridge and channel interlock
US81327065 Jun 200913 Mar 2012Tyco Healthcare Group LpSurgical stapling apparatus having articulation mechanism
US814176219 Nov 200927 Mar 2012Ethicon Endo-Surgery, Inc.Surgical stapler comprising a staple pocket
US815714531 May 200717 Abr 2012Ethicon Endo-Surgery, Inc.Pneumatically powered surgical cutting and fastening instrument with electrical feedback
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
US816219716 Ago 201124 Abr 2012Tyco Healthcare Group LpSurgical stapler
US8163010 *3 Jun 200824 Abr 2012Cardica, Inc.Staple-based heart valve treatment
US816718621 Jun 20101 May 2012Tyco Healthcare Group LpSurgical stapling device
US81721244 Feb 20118 May 2012Ethicon Endo-Surgery, Inc.Surgical instrument having recording capabilities
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
US819175230 Nov 20105 Jun 2012Tyco Healthcare Group LpSurgical instrument having a plastic surface
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
US82057813 Jun 201126 Jun 2012Ethicon Endo-Surgery, Inc.Surgical stapler with apparatus for adjusting staple height
US821553129 Ene 201010 Jul 2012Ethicon Endo-Surgery, Inc.Surgical stapling instrument having a medical substance dispenser
US821553223 Nov 201010 Jul 2012Tyco Healthcare Group LpTissue stop for surgical instrument
US823527414 Oct 20117 Ago 2012Tyco Healthcare Group LpSurgical instrument
US82459008 Dic 201021 Ago 2012Tyco Healthcare Group LpSurgical instrument having a plastic surface
US826730030 Dic 200918 Sep 2012Ethicon Endo-Surgery, Inc.Dampening device for endoscopic surgical stapler
US82725537 Mar 201225 Sep 2012Tyco Healthcare Group LpSurgical stapler
US827659430 Ago 20112 Oct 2012Tyco Healthcare Group LpKnife lockout mechanisms for surgical instrument
US829214827 Abr 201123 Oct 2012Tyco Healthcare Group LpArticulation and firing force mechanisms
US829215122 Dic 201123 Oct 2012Tyco Healthcare Group LpTool assembly for surgical stapling device
US82921552 Jun 201123 Oct 2012Ethicon Endo-Surgery, Inc.Motor-driven surgical cutting and fastening instrument with tactile position feedback
US830804022 Abr 201013 Nov 2012Ethicon Endo-Surgery, Inc.Surgical stapling instrument with an articulatable end effector
US830804110 Nov 201013 Nov 2012Tyco Healthcare Group LpStaple formed over the wire wound closure procedure
US831707028 Feb 200727 Nov 2012Ethicon Endo-Surgery, Inc.Surgical stapling devices that produce formed staples having different lengths
US832245527 Jun 20064 Dic 2012Ethicon Endo-Surgery, Inc.Manually driven surgical cutting and fastening instrument
US83225892 Jul 20104 Dic 2012Ethicon Endo-Surgery, Inc.Surgical stapling instruments
US83280659 Nov 201111 Dic 2012Covidien LpKnife/firing rod connection for surgical instrument
US83333133 Jun 201118 Dic 2012Ethicon Endo-Surgery, Inc.Surgical stapling instrument with a firing member return mechanism
US83423782 Jun 20101 Ene 2013Covidien LpOne handed stapler
US83481277 Abr 20108 Ene 2013Covidien LpSurgical fastener applying apparatus
US834812919 Nov 20098 Ene 2013Ethicon Endo-Surgery, Inc.Surgical stapler having a closure mechanism
US834813129 Sep 20068 Ene 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument with mechanical indicator to show levels of tissue compression
US83534371 Feb 201015 Ene 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument with a geared return mechanism
US835343819 Nov 200915 Ene 2013Ethicon Endo-Surgery, Inc.Circular stapler introducer with rigid cap assembly configured for easy removal
US835343919 Nov 200915 Ene 2013Ethicon Endo-Surgery, Inc.Circular stapler introducer with radially-openable distal end portion
US83602969 Sep 201029 Ene 2013Ethicon Endo-Surgery, Inc.Surgical stapling head assembly with firing lockout for a surgical stapler
US836029729 Sep 200629 Ene 2013Ethicon Endo-Surgery, Inc.Surgical cutting and stapling instrument with self adjusting anvil
US836597629 Sep 20065 Feb 2013Ethicon Endo-Surgery, Inc.Surgical staples having dissolvable, bioabsorbable or biofragmentable portions and stapling instruments for deploying the same
US839351430 Sep 201012 Mar 2013Ethicon Endo-Surgery, Inc.Selectively orientable implantable fastener cartridge
US83979715 Feb 200919 Mar 2013Ethicon Endo-Surgery, Inc.Sterilizable surgical instrument
US840843922 Abr 20102 Abr 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument with an articulatable end effector
US840844226 Sep 20112 Abr 2013Covidien LpTool assembly for a surgical stapling device
US84138686 Jul 20129 Abr 2013Covidien LpSurgical instrument
US841457719 Nov 20099 Abr 2013Ethicon Endo-Surgery, Inc.Surgical instruments and components for use in sterile environments
US84189076 Oct 201016 Abr 2013Covidien LpSurgical stapler having cartridge with adjustable cam mechanism
US84247404 Nov 201023 Abr 2013Ethicon Endo-Surgery, Inc.Surgical instrument having a directional switching mechanism
US845390812 Ago 20104 Jun 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument with improved firing trigger arrangement
US845391224 Ago 20124 Jun 2013Covidien LpSurgical stapler
US845952010 Ene 200711 Jun 2013Ethicon Endo-Surgery, Inc.Surgical instrument with wireless communication between control unit and remote sensor
US845952514 Feb 200811 Jun 2013Ethicon Endo-Sugery, Inc.Motorized surgical cutting and fastening instrument having a magnetic drive train torque limiting device
US846492328 Ene 201018 Jun 2013Ethicon Endo-Surgery, Inc.Surgical stapling devices for forming staples with different formed heights
US847467730 Sep 20102 Jul 2013Ethicon Endo-Surgery, Inc.Fastener system comprising a retention matrix and a cover
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
US84854135 Feb 200916 Jul 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument comprising an articulation joint
US849615220 Sep 201230 Jul 2013Covidien LpArticulation and firing force mechanisms
US849999312 Jun 20126 Ago 2013Ethicon Endo-Surgery, Inc.Surgical staple cartridge
US850580119 Dic 201113 Ago 2013Covidien LpSurgical fastener applying apparatus
US85172395 Feb 200927 Ago 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument comprising a magnetic element driver
US851724314 Feb 201127 Ago 2013Ethicon Endo-Surgery, Inc.Surgical instrument with wireless communication between control unit and remote sensor
US85172449 Jul 201227 Ago 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument having a medical substance dispenser
US852960030 Sep 201010 Sep 2013Ethicon Endo-Surgery, Inc.Fastener system comprising a retention matrix
US85345281 Mar 201117 Sep 2013Ethicon Endo-Surgery, Inc.Surgical instrument having a multiple rate directional switching mechanism
US854012811 Ene 200724 Sep 2013Ethicon Endo-Surgery, Inc.Surgical stapling device with a curved end effector
US854012926 Jul 201024 Sep 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument with improved firing trigger arrangement
US85401308 Feb 201124 Sep 2013Ethicon Endo-Surgery, Inc.Disposable motor-driven loading unit for use with a surgical cutting and stapling apparatus
US854013317 Mar 201024 Sep 2013Ethicon Endo-Surgery, Inc.Staple cartridge
US856187028 Feb 201122 Oct 2013Ethicon Endo-Surgery, Inc.Surgical stapling instrument
US856187428 Jun 201122 Oct 2013Covidien LpSurgical instrument with articulating tool assembly
US856765628 Mar 201129 Oct 2013Ethicon Endo-Surgery, Inc.Staple cartridges for forming staples having differing formed staple heights
US85734607 Mar 20135 Nov 2013Covidien LpSurgical 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
US858491914 Feb 200819 Nov 2013Ethicon Endo-Sugery, Inc.Surgical stapling apparatus with load-sensitive firing mechanism
US85849216 Oct 200619 Nov 2013Covidien LpSurgical instrument with articulating tool assembly
US859076229 Jun 200726 Nov 2013Ethicon Endo-Surgery, Inc.Staple cartridge cavity configurations
US859651328 Nov 20073 Dic 2013Covidien LpSurgical stapler with universal articulation and tissue pre-clamp
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
US86080436 Oct 200617 Dic 2013Covidien LpSurgical instrument having a multi-layered drive beam
US860804510 Oct 200817 Dic 2013Ethicon Endo-Sugery, Inc.Powered surgical cutting and stapling apparatus with manually retractable firing system
US861642725 Sep 201231 Dic 2013Covidien LpTool assembly for surgical stapling device
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
US862227519 Nov 20097 Ene 2014Ethicon Endo-Surgery, Inc.Circular stapler introducer with rigid distal end portion
US862854423 Sep 200814 Ene 2014Covidien LpKnife bar for surgical instrument
US863198717 May 201021 Ene 2014Ethicon Endo-Surgery, Inc.Pneumatically powered surgical cutting and fastening instrument with a variable control of the actuating rate of firing with mechanical power assist
US863246213 Jul 201121 Ene 2014Ethicon Endo-Surgery, Inc.Trans-rectum universal ports
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
US863676630 Nov 201228 Ene 2014Covidien LpSurgical stapling apparatus including sensing mechanism
US865212010 Ene 200718 Feb 2014Ethicon Endo-Surgery, Inc.Surgical instrument with wireless communication between control unit and sensor transponders
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
US867220730 Jul 201018 Mar 2014Ethicon Endo-Surgery, Inc.Transwall visualization arrangements and methods for surgical circular staplers
US86722085 Mar 201018 Mar 2014Ethicon Endo-Surgery, Inc.Surgical stapling instrument having a releasable buttress material
US868425327 May 20111 Abr 2014Ethicon Endo-Surgery, Inc.Surgical instrument with wireless communication between a control unit of a robotic system and remote sensor
US87019596 Jun 200822 Abr 2014Covidien LpMechanically pivoting cartridge channel for surgical instrument
US87082105 Oct 200629 Abr 2014Covidien LpMethod and force-limiting handle mechanism for a surgical instrument
US872076629 Sep 200613 May 2014Ethicon Endo-Surgery, Inc.Surgical stapling instruments and staples
US873361329 Sep 201027 May 2014Ethicon Endo-Surgery, Inc.Staple cartridge
US873447813 Jul 201127 May 2014Ethicon Endo-Surgery, Inc.Rectal manipulation devices
US874003430 Sep 20103 Jun 2014Ethicon Endo-Surgery, Inc.Surgical stapling instrument with interchangeable staple cartridge arrangements
US874003530 May 20133 Jun 2014Covidien LpSurgical stapler
US87400361 Dic 20113 Jun 2014Covidien LpSurgical instrument with actuator spring arm
US874003730 Sep 20103 Jun 2014Ethicon Endo-Surgery, Inc.Compressible fastener cartridge
US874003829 Abr 20113 Jun 2014Ethicon Endo-Surgery, Inc.Staple cartridge comprising a releasable portion
US874003928 Ene 20113 Jun 2014Covidien LpTissue stop for surgical instrument
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
US874653418 Ene 201110 Jun 2014Covidien LpTissue stop for surgical instrument
US874653529 Abr 201110 Jun 2014Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising detachable portions
US874723828 Jun 201210 Jun 2014Ethicon Endo-Surgery, Inc.Rotary drive shaft assemblies for surgical instruments with articulatable end effectors
US875269930 Sep 201017 Jun 2014Ethicon Endo-Surgery, Inc.Implantable fastener cartridge comprising bioabsorbable layers
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
US875746530 Sep 201024 Jun 2014Ethicon Endo-Surgery, Inc.Fastener system comprising a retention matrix and an alignment matrix
US875839114 Feb 200824 Jun 2014Ethicon Endo-Surgery, Inc.Interchangeable tools for surgical instruments
US87638756 Mar 20131 Jul 2014Ethicon Endo-Surgery, Inc.End effector for use with a surgical fastening instrument
US876387630 Jun 20111 Jul 2014Covidien LpSurgical instrument and cartridge for use therewith
US876387730 Sep 20101 Jul 2014Ethicon Endo-Surgery, Inc.Surgical instruments with reconfigurable shaft segments
US87638791 Mar 20111 Jul 2014Ethicon Endo-Surgery, Inc.Accessing data stored in a memory of surgical instrument
US877045810 Jul 20128 Jul 2014Covidien LpSurgical instrument having a plastic surface
US877700429 Abr 201115 Jul 2014Ethicon Endo-Surgery, Inc.Compressible staple cartridge comprising alignment members
US87835419 Feb 201222 Jul 2014Frederick E. Shelton, IVRobotically-controlled surgical end effector system
US878354230 Sep 201022 Jul 2014Ethicon Endo-Surgery, Inc.Fasteners supported by a fastener cartridge support
US878354330 Jul 201022 Jul 2014Ethicon Endo-Surgery, Inc.Tissue acquisition arrangements and methods for surgical stapling devices
US87897396 Sep 201129 Jul 2014Ethicon Endo-Surgery, Inc.Continuous stapling instrument
US878974030 Jul 201029 Jul 2014Ethicon Endo-Surgery, Inc.Linear cutting and stapling device with selectively disengageable cutting member
US878974123 Sep 201129 Jul 2014Ethicon Endo-Surgery, Inc.Surgical instrument with trigger assembly for generating multiple actuation motions
US879449718 Dic 20125 Ago 2014Ethicon Endo-Surgery, Inc.Surgical stapling head assembly with firing lockout for a surgical stapler
US88008389 Feb 201212 Ago 2014Ethicon Endo-Surgery, Inc.Robotically-controlled cable-based surgical end effectors
US880084115 Mar 201112 Ago 2014Ethicon Endo-Surgery, Inc.Surgical staple cartridges
US880173430 Jul 201012 Ago 2014Ethicon Endo-Surgery, Inc.Circular stapling instruments with secondary cutting arrangements and methods of using same
US880173530 Jul 201012 Ago 2014Ethicon Endo-Surgery, Inc.Surgical circular stapler with tissue retention arrangements
US880831118 Feb 201119 Ago 2014Covidien LpSurgical instruments including MEMS devices
US880832519 Nov 201219 Ago 2014Ethicon Endo-Surgery, Inc.Surgical stapling instrument with staples having crown features for increasing formed staple footprint
US881402430 Sep 201026 Ago 2014Ethicon Endo-Surgery, Inc.Fastener system comprising a plurality of connected retention matrix elements
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
US882713513 Sep 20109 Sep 2014Transenterix, Inc.Hernia stapler with integrated mesh manipulator
US882790313 Jul 20119 Sep 2014Ethicon Endo-Surgery, Inc.Modular tool heads for use with circular surgical instruments
US88336326 Sep 201116 Sep 2014Ethicon Endo-Surgery, Inc.Firing member displacement system for a stapling instrument
US884000330 Sep 201023 Sep 2014Ethicon Endo-Surgery, Inc.Surgical stapling instrument with compact articulation control arrangement
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
US885769429 Abr 201114 Oct 2014Ethicon Endo-Surgery, Inc.Staple cartridge loading assembly
US885859013 Jul 201114 Oct 2014Ethicon Endo-Surgery, Inc.Tissue manipulation devices
US886400730 Sep 201021 Oct 2014Ethicon Endo-Surgery, Inc.Implantable fastener cartridge having a non-uniform arrangement
US886400929 Abr 201121 Oct 2014Ethicon Endo-Surgery, Inc.Tissue thickness compensator for a surgical stapler comprising an adjustable anvil
US886401020 Ene 201221 Oct 2014Covidien LpCurved guide member for articulating instruments
US887004921 Mar 201228 Oct 2014Transenterix, Inc.Hernia stapler
US888797914 Feb 201418 Nov 2014Covidien LpSurgical stapler
US888881424 Oct 201318 Nov 2014Covidien LpSurgical instrument
US889394923 Sep 201125 Nov 2014Ethicon Endo-Surgery, Inc.Surgical stapler with floating anvil
US88939509 Oct 201225 Nov 2014Covidien LpSurgical apparatus for applying tissue fasteners
US889946112 Ago 20112 Dic 2014Covidien LpTissue stop for surgical instrument
US889946330 Sep 20102 Dic 2014Ethicon Endo-Surgery, Inc.Surgical staple cartridges supporting non-linearly arranged staples and surgical stapling instruments with common staple-forming pockets
US88994655 Mar 20132 Dic 2014Ethicon Endo-Surgery, Inc.Staple cartridge comprising drivers for deploying a plurality of staples
US889946619 Nov 20092 Dic 2014Ethicon Endo-Surgery, Inc.Devices and methods for introducing a surgical circular stapling instrument into a patient
US89059771 Jun 20059 Dic 2014Ethicon Endo-Surgery, Inc.Surgical stapling instrument having an electroactive polymer actuated medical substance dispenser
US891147114 Sep 201216 Dic 2014Ethicon Endo-Surgery, Inc.Articulatable surgical device
US892578230 Sep 20106 Ene 2015Ethicon Endo-Surgery, Inc.Implantable fastener cartridge comprising multiple layers
US89257883 Mar 20146 Ene 2015Ethicon Endo-Surgery, Inc.End effectors for surgical stapling instruments
US893168113 May 201413 Ene 2015Covidien LpSurgical instrument and cartridge for use therewith
US893168227 May 201113 Ene 2015Ethicon Endo-Surgery, Inc.Robotically-controlled shaft based rotary drive systems for surgical instruments
US89316839 Jul 200913 Ene 2015Covidien LpSurgical stapling device
US893934331 Dic 201327 Ene 2015Covidien LpSurgical stapling apparatus including a drive beam
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
US897895513 Jul 201117 Mar 2015Ethicon Endo-Surgery, Inc.Anvil assemblies with collapsible frames for circular staplers
US897895630 Sep 201017 Mar 2015Ethicon Endo-Surgery, Inc.Jaw closure arrangements for surgical instruments
US897982714 Mar 201217 Mar 2015Covidien LpSurgical instrument with articulation mechanism
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
US899805820 May 20147 Abr 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US90043403 Jul 201414 Abr 2015Covidien LpSurgical instrument having a plastic surface
US900523018 Ene 201314 Abr 2015Ethicon Endo-Surgery, Inc.Motorized surgical instrument
US901653925 Oct 201128 Abr 2015Covidien LpMulti-use loading unit
US902227113 Jul 20095 May 2015Covidien LpSurgical instrument having a plastic surface
US902781715 Dic 201412 May 2015Covidien LpSurgical stapling apparatus including sensing mechanism
US902849428 Jun 201212 May 2015Ethicon Endo-Surgery, Inc.Interchangeable end effector coupling arrangement
US90285197 Feb 201112 May 2015Ethicon Endo-Surgery, Inc.Motorized surgical instrument
US90332027 May 201219 May 2015Covidien LpSurgical instrument having a plastic surface
US903320330 Sep 201019 May 2015Ethicon Endo-Surgery, Inc.Fastening instrument for deploying a fastener system comprising a retention matrix
US903320413 Jul 201119 May 2015Ethicon Endo-Surgery, Inc.Circular stapling devices with tissue-puncturing anvil features
US904422730 Sep 20102 Jun 2015Ethicon Endo-Surgery, Inc.Collapsible fastener cartridge
US904422830 Sep 20102 Jun 2015Ethicon Endo-Surgery, Inc.Fastener system comprising a plurality of fastener cartridges
US904423013 Feb 20122 Jun 2015Ethicon Endo-Surgery, Inc.Surgical cutting and fastening instrument with apparatus for determining cartridge and firing motion status
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
US907251525 Jun 20147 Jul 2015Ethicon Endo-Surgery, Inc.Surgical stapling apparatus
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
US907865326 Mar 201214 Jul 2015Ethicon Endo-Surgery, Inc.Surgical stapling device with lockout system for preventing actuation in the absence of an installed staple cartridge
US908460115 Mar 201321 Jul 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US908933013 Jul 201128 Jul 2015Ethicon Endo-Surgery, Inc.Surgical bowel retractor devices
US909533919 May 20144 Ago 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
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
US91076636 Sep 201118 Ago 2015Ethicon Endo-Surgery, Inc.Stapling instrument comprising resettable staple drivers
US910766411 Jun 201218 Ago 2015Covidien LpTissue stop for surgical instrument
US911386230 Sep 201025 Ago 2015Ethicon Endo-Surgery, Inc.Surgical stapling instrument with a variable staple forming system
US911386316 Oct 201225 Ago 2015Covidien LpSurgical fastening assembly
US911386430 Sep 201025 Ago 2015Ethicon Endo-Surgery, Inc.Surgical cutting and fastening instruments with separate and distinct fastener deployment and tissue cutting systems
US911386529 Abr 201125 Ago 2015Ethicon Endo-Surgery, Inc.Staple cartridge comprising a layer
US911387424 Jun 201425 Ago 2015Ethicon Endo-Surgery, Inc.Surgical instrument system
US911388313 Jul 201125 Ago 2015Ethicon Endo-Surgery, Inc.Collapsible anvil plate assemblies for circular surgical stapling devices
US911388413 Jul 201125 Ago 2015Ethicon Endo-Surgery, Inc.Modular surgical tool systems
US911965728 Jun 20121 Sep 2015Ethicon Endo-Surgery, Inc.Rotary actuatable closure arrangement for surgical end effector
US912565413 Jul 20118 Sep 2015Ethicon Endo-Surgery, Inc.Multiple part anvil assemblies for circular surgical stapling devices
US912566228 Jun 20128 Sep 2015Ethicon Endo-Surgery, Inc.Multi-axis articulating and rotating surgical tools
US913194021 Feb 201315 Sep 2015Ethicon Endo-Surgery, Inc.Staple cartridge
US913822526 Feb 201322 Sep 2015Ethicon Endo-Surgery, Inc.Surgical stapling instrument with an articulatable end effector
US913822626 Sep 201122 Sep 2015Covidien LpCartridge assembly for a surgical stapling device
US914927417 Feb 20116 Oct 2015Ethicon Endo-Surgery, Inc.Articulating endoscopic accessory channel
US915553711 Jul 201213 Oct 2015Covidien LpSurgical fastener applying apparatus
US916803829 Abr 201127 Oct 2015Ethicon Endo-Surgery, Inc.Staple cartridge comprising a tissue thickness compensator
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
US91986616 Sep 20111 Dic 2015Ethicon Endo-Surgery, Inc.Stapling instrument comprising a plurality of staple cartridges stored therein
US919866226 Jun 20121 Dic 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator having improved visibility
US920487814 Ago 20148 Dic 2015Ethicon Endo-Surgery, Inc.Surgical stapling apparatus with interlockable firing system
US920487928 Jun 20128 Dic 2015Ethicon Endo-Surgery, Inc.Flexible drive member
US920488028 Mar 20128 Dic 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising capsules defining a low pressure environment
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
US921112213 Jul 201115 Dic 2015Ethicon Endo-Surgery, Inc.Surgical access devices with anvil introduction and specimen retrieval structures
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
US92329442 May 201312 Ene 2016Covidien LpSurgical instrument and bushing
US92329457 Jul 201412 Ene 2016Ethicon Endo-Surgery, Inc.Surgical stapling head assembly with firing lockout for a surgical stapler
US923789127 May 201119 Ene 2016Ethicon Endo-Surgery, Inc.Robotically-controlled surgical stapling devices that produce formed staples having different lengths
US924171428 Mar 201226 Ene 2016Ethicon Endo-Surgery, Inc.Tissue thickness compensator and method for making the same
US927172816 May 20121 Mar 2016Covidien LpSurgical fastener applying apparatus
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
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
US928305423 Ago 201315 Mar 2016Ethicon Endo-Surgery, LlcInteractive displays
US928920615 Dic 201422 Mar 2016Ethicon Endo-Surgery, LlcLateral securement members for surgical staple cartridges
US928920916 May 201222 Mar 2016Covidien LpSurgical fastener applying apparatus
US928921021 May 201222 Mar 2016Ethicon Endo-Surgery, LlcSurgical stapler with apparatus for adjusting staple height
US928921121 Jun 201322 Mar 2016Covidien LpSurgical stapling apparatus
US928925628 Jun 201222 Mar 2016Ethicon Endo-Surgery, LlcSurgical end effectors having angled tissue-contacting surfaces
US929546429 Abr 201129 Mar 2016Ethicon Endo-Surgery, Inc.Surgical stapler anvil comprising a plurality of forming pockets
US929546530 Nov 201229 Mar 2016Covidien LpTissue stop for surgical instrument
US929546823 Jul 201429 Mar 2016Covidien LpSurgical instruments including MEMS devices
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
US930175529 Abr 20115 Abr 2016Ethicon Endo-Surgery, LlcCompressible staple cartridge assembly
US93017599 Feb 20125 Abr 2016Ethicon Endo-Surgery, LlcRobotically-controlled surgical instrument with selectively articulatable end effector
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
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
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
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
US93267714 Mar 20113 May 2016Ethicon Endo-Surgery, LlcStaple cartridge
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
US934547725 Jun 201224 May 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator comprising incorporating a hemostatic agent
US934548018 Ene 201324 May 2016Covidien LpSurgical instrument and cartridge members for use therewith
US934548113 Mar 201324 May 2016Ethicon Endo-Surgery, LlcStaple cartridge tissue thickness sensor system
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
US936421716 Oct 201214 Jun 2016Covidien LpIn-situ loaded stapler
US936422322 May 201314 Jun 2016Covidien LpSurgical instrument having a multi-layered drive beam
US936422712 Dic 201414 Jun 2016Covidien LpSurgical instrument and cartridge for use therewith
US936423028 Jun 201214 Jun 2016Ethicon Endo-Surgery, LlcSurgical stapling instruments with rotary joint assemblies
US936423222 Jul 201514 Jun 2016Covidien LpTissue stop for surgical instrument
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
US937035918 Mar 201321 Jun 2016Covidien LpSurgical stapler having cartridge with adjustable cam mechanism
US93703645 Mar 201321 Jun 2016Ethicon Endo-Surgery, LlcPowered surgical cutting and stapling apparatus with manually retractable firing system
US938101618 Jul 20135 Jul 2016Covidien LpArticulation and firing force mechanisms
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
US939301510 May 201319 Jul 2016Ethicon Endo-Surgery, LlcMotor driven surgical fastener device with cutting member reversing 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
US940262924 Jul 20132 Ago 2016Covidien LpSurgical fastener applying apparatus
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
US941483828 Mar 201216 Ago 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprised of a plurality of materials
US94334117 Mar 20136 Sep 2016Covidien LpTool assembly for a surgical stapling device
US943341928 Mar 20126 Sep 2016Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising a plurality of layers
US943964912 Dic 201213 Sep 2016Ethicon Endo-Surgery, LlcSurgical instrument having force feedback capabilities
US944581012 Jun 201320 Sep 2016Covidien LpStapling device with grasping jaw mechanism
US944581119 Dic 201320 Sep 2016Covidien LpKnife bar for surgical instrument
US944581323 Ago 201320 Sep 2016Ethicon Endo-Surgery, LlcClosure indicator systems for surgical instruments
US94519585 Ago 201327 Sep 2016Ethicon Endo-Surgery, LlcSurgical instrument with firing actuator lockout
US945195916 May 201227 Sep 2016Covidien LpSurgical fastener applying apparatus
US94684381 Mar 201318 Oct 2016Eticon Endo-Surgery, LLCSensor straightened end effector during removal through trocar
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
US949216714 Mar 201315 Nov 2016Ethicon Endo-Surgery, LlcArticulatable surgical device with rotary driven cutting member
US949821630 Abr 201422 Nov 2016Covidien LpSurgical instrument with actuator spring arm
US949821930 Jun 201522 Nov 2016Ethicon Endo-Surgery, LlcDetachable motor powered surgical instrument
US951082725 Mar 20136 Dic 2016Covidien LpMicro surgical instrument and loading unit for use therewith
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
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
US952649725 Mar 201327 Dic 2016Covidien LpSurgical instrument with articulation mechanism
US952649921 Abr 201527 Dic 2016Covidien LpMulti-use loading unit
US953900711 Jul 201210 Ene 2017Covidien LpSurgical fastener applying aparatus
US95497325 Mar 201324 Ene 2017Ethicon Endo-Surgery, LlcMotor-driven surgical cutting instrument
US954973523 Dic 201324 Ene 2017Ethicon Endo-Surgery, LlcFastener cartridge comprising a firing member including fastener transfer surfaces
US95547941 Mar 201331 Ene 2017Ethicon Endo-Surgery, LlcMultiple processor motor control for modular surgical instruments
US956103126 Sep 20117 Feb 2017Covidien LpSurgical instrument including MEMS 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
US956606421 Jun 201314 Feb 2017Covidien LpSurgical stapling apparatus
US95660679 Abr 201514 Feb 2017Covidien LpSurgical stapling apparatus including sensing mechanism
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
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
US958566223 Dic 20137 Mar 2017Ethicon Endo-Surgery, LlcFastener cartridge comprising an extendable firing member
US95856638 Mar 20167 Mar 2017Ethicon Endo-Surgery, LlcSurgical stapling instrument configured to apply a compressive pressure to tissue
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
US95970759 Jun 201421 Mar 2017Ethicon Endo-Surgery, Inc.Tissue acquisition arrangements and methods for surgical stapling devices
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
US960399129 Jul 201328 Mar 2017Ethicon Endo-Surgery, LlcSurgical stapling instrument having a medical substance dispenser
US96158268 Feb 201311 Abr 2017Ethicon Endo-Surgery, LlcMultiple thickness implantable layers for surgical stapling devices
US961582920 May 201611 Abr 2017Covidien LpTissue stop for surgical instrument
US962962314 Mar 201325 Abr 2017Ethicon Endo-Surgery, LlcDrive system lockout arrangements for modular surgical instruments
US962962823 Ene 201425 Abr 2017Covidien LpSurgical stapling apparatus
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
US96361285 Feb 20142 May 2017Covidien LpMethod and force-limiting handle mechanism for a surgical instrument
US964262023 Dic 20139 May 2017Ethicon Endo-Surgery, LlcSurgical cutting and stapling instruments with articulatable end effectors
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
US965561411 Mar 201323 May 2017Ethicon Endo-Surgery, LlcRobotically-controlled motorized surgical instrument with an end effector
US965561717 Oct 201423 May 2017Covidien LpSurgical instrument
US965562430 Ago 201323 May 2017Ethicon LlcSurgical stapling device with a curved end effector
US966210830 Ago 201330 May 2017Covidien LpSurgical stapling apparatus
US966211015 Sep 201530 May 2017Ethicon Endo-Surgery, LlcSurgical stapling instrument with an articulatable end effector
US966872821 Jun 20136 Jun 2017Covidien LpSurgical stapling apparatus
US966872921 Jun 20136 Jun 2017Covidien LpSurgical stapling apparatus
US966873321 Abr 20146 Jun 2017Covidien LpStapling device with features to prevent inadvertent firing of staples
US967535530 Ago 201313 Jun 2017Ethicon LlcSurgical stapling device with a curved end effector
US968187023 Dic 201320 Jun 2017Ethicon LlcArticulatable surgical instruments with separate and distinct closing and firing systems
US968723014 Mar 201327 Jun 2017Ethicon LlcArticulatable surgical instrument comprising a firing drive
US968723121 Oct 201327 Jun 2017Ethicon LlcSurgical stapling instrument
US96872378 Jun 201527 Jun 2017Ethicon Endo-Surgery, LlcStaple cartridge including collapsible deck arrangement
US969036226 Mar 201427 Jun 2017Ethicon LlcSurgical instrument control circuit having a safety processor
US969377724 Feb 20144 Jul 2017Ethicon LlcImplantable layers comprising a pressed region
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
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
US970699119 Feb 201418 Jul 2017Ethicon Endo-Surgery, Inc.Staple cartridge comprising staples including a lateral base
US971749831 Ene 20141 Ago 2017Covidien LpSurgical stapling apparatus
US972409129 Ago 20138 Ago 2017Ethicon LlcSurgical stapling device
US972409223 Dic 20138 Ago 2017Ethicon LlcModular surgical instruments
US972409317 Ene 20148 Ago 2017Covidien LpSurgical instrument and loading unit for use therewith
US97240945 Sep 20148 Ago 2017Ethicon LlcAdjunct with integrated sensors to quantify tissue compression
US972409511 Jul 20128 Ago 2017Covidien LpSurgical fastener applying apparatus
US972409813 Nov 20148 Ago 2017Ethicon Endo-Surgery, LlcStaple cartridge comprising an implantable layer
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
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
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
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
US97571237 Mar 201312 Sep 2017Ethicon LlcPowered surgical instrument having a transmission system
US975712424 Feb 201412 Sep 2017Ethicon LlcImplantable layer assemblies
US975712631 Mar 201412 Sep 2017Covidien LpSurgical stapling apparatus with firing lockout mechanism
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
US976366223 Dic 201319 Sep 2017Ethicon LlcFastener cartridge comprising a firing member configured to directly engage and eject fasteners from the fastener cartridge
US97702458 Feb 201326 Sep 2017Ethicon LlcLayer arrangements for surgical staple cartridges
US977560824 Feb 20143 Oct 2017Ethicon LlcFastening system comprising a firing member lockout
US977560923 Ago 20133 Oct 2017Ethicon LlcTamper proof circuit for surgical instrument battery pack
US977561330 Ago 20133 Oct 2017Ethicon LlcSurgical stapling device with a curved end effector
US977561425 Ene 20163 Oct 2017Ethicon Endo-Surgery, LlcSurgical stapling instruments with rotatable staple deployment arrangements
US97821691 Mar 201310 Oct 2017Ethicon LlcRotary powered articulation joints for surgical instruments
US97888348 Feb 201317 Oct 2017Ethicon LlcLayer comprising deployable attachment members
US97888365 Sep 201417 Oct 2017Ethicon LlcMultiple motor control for powered medical device
US97953817 Abr 201624 Oct 2017Ethicon Endo-Surgery, LlcRobotically-controlled shaft based rotary drive systems for surgical instruments
US979538220 Ago 201324 Oct 2017Ethicon LlcFastener cartridge assembly comprising a cam and driver arrangement
US979538322 Sep 201624 Oct 2017Ethicon LlcTissue thickness compensator comprising resilient members
US979538427 Mar 201324 Oct 2017Ethicon LlcFastener cartridge comprising a tissue thickness compensator and a gap setting element
US98016269 Abr 201431 Oct 2017Ethicon LlcModular motor driven surgical instruments with alignment features for aligning rotary drive shafts with surgical end effector shafts
US980162726 Sep 201431 Oct 2017Ethicon LlcFastener cartridge for creating a flexible staple line
US980162826 Sep 201431 Oct 2017Ethicon LlcSurgical staple and driver arrangements for staple cartridges
US980163420 Oct 201431 Oct 2017Ethicon LlcTissue thickness compensator for a surgical stapler
US980461826 Mar 201431 Oct 2017Ethicon LlcSystems and methods for controlling a segmented circuit
US980824414 Mar 20137 Nov 2017Ethicon LlcSensor arrangements for absolute positioning system for surgical instruments
US98082466 Mar 20157 Nov 2017Ethicon Endo-Surgery, LlcMethod of operating a powered surgical instrument
US980824730 Jun 20157 Nov 2017Ethicon LlcStapling system comprising implantable layers
US980824923 Ago 20137 Nov 2017Ethicon LlcAttachment portions for surgical instrument assemblies
US98144609 Abr 201414 Nov 2017Ethicon LlcModular motor driven surgical instruments with status indication arrangements
US981446110 Mar 201514 Nov 2017Covidien LpSurgical instrument having a plastic surface
US981446223 Jun 201414 Nov 2017Ethicon LlcAssembly for fastening tissue comprising a compressible layer
US981446321 Jun 201314 Nov 2017Covidien LpSurgical stapling apparatus
US982073826 Mar 201421 Nov 2017Ethicon LlcSurgical instrument comprising interactive systems
US983942224 Feb 201412 Dic 2017Ethicon LlcImplantable layers and methods for altering implantable layers for use with surgical fastening instruments
US983942324 Feb 201412 Dic 2017Ethicon LlcImplantable layers and methods for modifying the shape of the implantable layers for use with a surgical fastening instrument
US984887320 Ago 201326 Dic 2017Ethicon LlcFastener cartridge assembly comprising a driver and staple cavity arrangement
US984887414 Feb 201426 Dic 2017Covidien LpSmall diameter endoscopic stapler
US98488758 Feb 201326 Dic 2017Ethicon LlcAnvil layer attached to a proximal end of an end effector
US984887830 Ago 201626 Dic 2017Covidien LpTool assembly for a surgical stapling device
US20050131390 *25 Abr 200316 Jun 2005Russell HeinrichSurgical instruments including mems devices
US20060291981 *1 Jun 200628 Dic 2006Viola Frank JExpandable backspan staple
US20070057014 *27 Jul 200615 Mar 2007Whitman Michael PStaple pocket arrangement for surgical stapler
US20090001130 *29 Jun 20071 Ene 2009Hess Christopher JSurgical procedure using a cutting and stapling instrument having releasable staple-forming pockets
US20090318957 *1 Sep 200924 Dic 2009Viola Frank JExpandable backspan staple
US20110144640 *18 Feb 201116 Jun 2011Tyco Healthcare Group LpSurgical instruments including mems devices
US20120241504 *7 Jun 201227 Sep 2012Tyco Healthcare Group LpStaple with Multiple Cross Sectional Shapes
CN104739488A *24 Feb 20141 Jul 2015温州冠美医疗科技有限公司Nail plate of prepuce loop cutting suturing instrument
EP1728473A12 Jun 20066 Dic 2006Tyco Healthcare Group LpExpandable backspan staple
Clasificaciones
Clasificación de EE.UU.606/219, 227/175.1
Clasificación internacionalA61B17/072, A61B17/115, A61B17/10, A61B17/08, A61B17/12, A61B17/064
Clasificación cooperativaA61B17/0686, A61B2017/320052, A61B17/115, A61B17/068, A61B2017/07264, A61B17/0644, A61B17/0684, A61B17/07207, A61B17/072, A61B17/0682
Clasificación europeaA61B17/068, A61B17/072, A61B17/068B4, A61B17/072B, A61B17/115, A61B17/068B2, A61B17/064D
Eventos legales
FechaCódigoEventoDescripción
18 Dic 2000ASAssignment
Owner name: 3M INNOVATIVE PROPERTIES COMPANY, MINNESOTA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MINNESOTA MINING AND MANUFACTURING COMPANY, A CORPORATIONOF DELAWARE;REEL/FRAME:011391/0444
Effective date: 20001208
26 May 2004ASAssignment
Owner name: TYCO HEALTHCARE GROUP LP, CONNECTICUT
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RACENET, DAVID C.;BAYER, HANSPETER R.;CUNNINGHAM, SCOTT;REEL/FRAME:015366/0455;SIGNING DATES FROM 20040414 TO 20040519