BIPOLAR ELECTROSURGICAL FEATURES FOR TARGETED HEMOSTASIS

An apparatus is configured to operate on tissue. The apparatus includes an end effector with an upper jaw and a lower jaw. The upper jaw is configured to pivot relative to the lower jaw. The apparatus also includes an electrode cap coupled to either the upper or lower jaw. The electrode cap includes a first electrode surface configured at a first polarity and a second electrode surface configured at a second polarity. The second polarity is opposite to the first polarity. The electrode cap is configured to be applied to tissue such that the electrode cap is operable to deliver bipolar RF energy to the tissue. The electrode cap may be used to selectively weld bleeding tissue in a localized fashion, without having to place the tissue between the jaws, and without having to use an instrument separate from the jaws. 120-. (canceled)21. An electrosurgical instrument end effector for operating on tissue , the end effector comprising:(a) a tip;(b) a blade arranged on an outer surface of the tip; and(c) at least one deformable electrode member extending from the tip, wherein the at least one deformable electrode member is configured to deform against tissue;wherein the at least one deformable electrode member is configured to deliver RF energy to tissue electrically coupled with the at least one deformable electrode member to thereby seal the tissue.22. The end effector of claim 21 , wherein the blade is configured to provide an electrode that cooperates with the at least one deformable electrode member to deliver bipolar RF energy to tissue electrically coupled with the electrode and the at least one deformable electrode.23. The end effector of claim 21 , wherein the blade is configured to deliver ultrasonic energy to tissue.24. The end effector of claim 21 , wherein the end effector is configured to emit a conductive liquid to facilitate electrical coupling of the at least one deformable electrode member with tissue being treated.25. The end effector of claim 24 , wherein ...

Tissue thickness compensator configured to redistribute compressive forces

A tissue thickness compensator may generally comprise a compressible core comprising a plurality of movable particles, and a wrap surrounding the compressible core. The plurality of movable particles may comprise at least one medicament. A tissue thickness compensator may generally comprise a compressible core comprising a plurality of crushable particles, and a wrap surrounding the compressible core. The plurality of crushable particles may comprise at least one medicament. The compressible core may comprise a material selected from a group consisting of a biocompatible material. The wrap may comprise a material selected from a group consisting of a biocompatible material. Articles of manufacture comprising the tissue thickness compensator and methods of making and using the tissue thickness compensator are also described.

Surgical stapling instruments

The present invention provides circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed.

BIPOLAR ELECTROSURGICAL FEATURES FOR TARGETED HEMOSTASIS

An apparatus is configured to operate on tissue. The apparatus includes an end effector with an upper jaw and a lower jaw. The upper jaw is configured to pivot relative to the lower jaw. The apparatus also includes an electrode cap coupled to either the upper or lower jaw. The electrode cap includes a first electrode surface configured at a first polarity and a second electrode surface configured at a second polarity. The second polarity is opposite to the first polarity. The electrode cap is configured to be applied to tissue such that the electrode cap is operable to deliver bipolar RF energy to the tissue. The electrode cap may be used to selectively weld bleeding tissue in a localized fashion, without having to place the tissue between the jaws, and without having to use an instrument separate from the jaws. 120-. (canceled)21. A surgical instrument end effector for operating on tissue , the end effector comprising:(a) a blade configured to vibrate at an ultrasonic frequency;(b) a clamp member configured to move relative to the blade for clamping tissue against the blade;(c) a first electrode surface; and(d) a second electrode surface spaced from the first electrode surface,wherein the end effector is operable to simultaneously cut and seal tissue by delivering ultrasonic energy to the tissue through the blade for cutting the tissue and simultaneously delivering bipolar RF energy to the tissue through the first and second electrode surfaces for sealing the tissue.22. The end effector of claim 21 , wherein at least one of the first or second electrode surfaces is arranged on the clamp member.23. The end effector of claim 22 , wherein the first electrode surface is arranged on the blade and the second electrode surface is arranged on the clamp member.24. The end effector of claim 23 , wherein the first electrode surface extends to a distal tip of the blade.25. The end effector of claim 21 , wherein the clamp member is configured to pivot relative to the blade.26. ...

Bipolar electrosurgical features for targeted hemostasis

An apparatus is configured to operate on tissue. The apparatus includes an end effector with an upper jaw and a lower jaw. The upper jaw is configured to pivot relative to the lower jaw. The apparatus also includes an electrode cap coupled to either the upper or lower jaw. The electrode cap includes a first electrode surface configured at a first polarity and a second electrode surface configured at a second polarity. The second polarity is opposite to the first polarity. The electrode cap is configured to be applied to tissue such that the electrode cap is operable to deliver bipolar RF energy to the tissue. The electrode cap may be used to selectively weld bleeding tissue in a localized fashion, without having to place the tissue between the jaws, and without having to use an instrument separate from the jaws.

COLLAPSIBLE ANVIL PLATE ASSEMBLIES FOR CIRCULAR SURGICAL STAPLING DEVICES

Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed. 1. An anvil plate for a surgical stapling instrument , said anvil plate comprising a plurality of anvil plate segments movably interconnected and reconfigurable from a first orientation wherein said anvil plate segments may be inserted through a cannula opening as a unit and then reconfigured into a second orientation in the form of a substantially planar anvil plate assembly that has a diameter that is larger than said cannula opening.2. The anvil plate of wherein said plurality of anvil plate segments are supported on a flexible ring member that is configurable between said first orientation to said second orientation.3. The anvil plate of wherein said flexible ring member is fabricated from an elastomeric material and said plurality of anvil plate segments are fabricated from metal material.4. The anvil plate of wherein said plurality of anvil plate segments are coupled together by a plurality of hinges.5. The anvil plate of wherein said plurality of anvil plate segments comprises four arcuate plate segments coupled by said hinges in end-to-end fashion such that when said arcuate plate segments are in said first orientation claim 4 , said four arcuate plate segments may be substantially stacked on top of each other.6. The anvil plate of wherein each said arcuate plate segment has an outer configuration of staple formation pockets and an inner ...

ADJUNCT THERAPY DEVICE FOR APPLYING HEMOSTATIC AGENT

A surgical instrument includes a handle portion, a shaft housing a firing bar, an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft. The lower jaw is configured to receive a removable cartridge. The cartridge includes a housing, a plurality of staples disposed in the housing, and a deck disposed over the plurality of staples. The deck defines apertures, with each aperture being substantially disposed over each staple. The cartridge further receives a buttress material stored in one or both of the anvil or cartridge. The material is releasable onto severed tissue via a firing bar severing the buttress material in response to the longitudinal closing motion. 1. A surgical instrument apparatus comprising:(a) a handle portion;(b) a shaft housing a firing bar;(c) an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft; (i) a housing,', '(ii) a plurality of staples disposed in the housing,', '(iii) a deck disposed over the plurality of staples, the deck defining apertures, wherein each aperture is substantially disposed over a respective staple,', '(iv) at least a first biocompatible material disposed in each aperture, and', '(v) at least a second biocompatible material disposed on the deck., '(d) a removable cartridge, wherein the lower jaw is configured to receive the cartridge, the cartridge comprising2. The apparatus of claim 1 , wherein the first biocompatible material is the same as the second biocompatible material.3. The apparatus of claim 2 , wherein the first biocompatible material differs from the second biocompatible material.4. The apparatus of claim 1 , wherein each staple is configured to puncture the first biocompatible material and the second biocompatible material in response to the longitudinal closing motion ...

Surgical Stapling Device with Adjunct Material Application Feature

A surgical instrument includes a handle portion, a shaft housing a firing bar, an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft. The lower jaw is configured to receive a removable cartridge. The cartridge includes a housing, a plurality of staples disposed in the housing, and a deck disposed over the plurality of staples. The deck defines apertures, with each aperture being substantially disposed over each staple. The cartridge further includes an agent. The firing bar is operable to assist with releasing the agent onto a severed line of tissue when the firing bar is advanced. 1. A surgical instrument apparatus comprising:(a) a handle portion;(b) a shaft housing a firing bar;(c) an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft; and (i) a housing,', '(ii) a plurality of staples disposed in the housing,', '(iii) a deck disposed over the plurality of staples, the deck defining apertures, each aperture being substantially disposed over each staple, and', '(iv) a biocompatible material, wherein the firing bar is operable to apply the biocompatible material to tissue while the stapling and severing assembly simultaneously severs and drives staples into the tissue., '(d) a removable cartridge, wherein the lower jaw is configured to receive the cartridge, the cartridge comprising2. The apparatus of claim 1 , the firing bar includes a notch configured to receive the biocompatible material.3. The apparatus of claim 2 , wherein the biocompatible material is disposed on or beneath the deck of the cartridge at a proximal end of the cartridge.4. The apparatus of claim 2 , wherein the biocompatible material is wrapped about a pair of spools.5. The apparatus of claim 4 , wherein the spools are resiliently biased.6. The apparatus of ...

GRID AND ROTATABLE CUBE GUIDE LOCALIZATION FIXTURE FOR BIOPSY DEVICE

A biopsy system with a grid plate used as either a lateral or medial compression plate of a localization fixture used with a breast coil includes a rotatable guide cube that may be inserted into a desired rectangular recess in the grid plate after rotating to position a selected guide hole in the desired spatial orientation. Versions of a guide cube include those rotatable in two axes to provide additional hole positions, angled holes, enlarged circular holes that function with a rotating guide to support a noncircular biopsy instrument cannula (e.g., trocar/sleeve combination, core biopsy probe of a biopsy device) for rotation. A rotating guide may have an unlocked state for easily sliding to a selected longitudinal position thereon. Thereafter, the rotating guide is locked to serve as a positive depth stop (e.g., quarter turn locking elastomeric rings, triangular and scissor clips, and shutter depth stops). 1. A guide for guiding a biopsy instrument relative to a breast compression assembly , the guide comprising a body insertable at different orientations into one or more grid apertures of a breast compression assembly , the body having:(a) a first pair of faces;(b) at least two guide holes extending between the first pair of faces;(c) a second pair of faces; and(d) at least one guide hole extending between the second pair of faces;wherein the at least one guide hole extending between the second pair of faces intersects with at least one of the at least two guide holes extending between the first pair of faces.2. The guide of claim 1 , wherein the first pair of faces are generally parallel with respect to each other claim 1 , wherein the second pair of faces are generally parallel to each other.3. The guide of claim 1 , wherein at least one guide hole extends along an axis claim 1 , wherein the axis is obliquely angled with respect to the pair of opposed faces between which the guide hole extends.4. The guide of claim 1 , wherein the guide comprises a pair of ...

ELECTROSURGICAL END EFFECTOR WITH TISSUE TACKING FEATURES

An apparatus is provided for operating on tissue. The apparatus includes an end effector having an upper jaw and lower jaw. The upper and lower jaws each include an electrode surface. The apparatus also includes a tissue tacking cartridge coupled to one of either the upper jaw or the lower jaw. The tissue tacking cartridge includes at least one fastener positioned outside of the electrode surfaces. The fastener is operable to be deployed from the tissue tacking cartridge. A tack loading cartridge may also be operable to load the end effector with at least one fastener. 1. An apparatus for operating on tissue , the apparatus comprising: (i) an upper jaw, wherein the upper jaw comprises an electrode surface, and', '(ii) a lower jaw, wherein the lower jaw comprises an electrode surface corresponding with the electrode surface of the upper jaw; and, '(a) an end effector, wherein the end effector comprises(b) a tissue tacking cartridge, wherein the tissue tacking cartridge is coupled to one of either the upper jaw or the lower jaw, wherein the tissue tacking cartridge comprises at least one fastener, wherein the at least one fastener is positioned outside of the electrode surfaces, wherein the at least one fastener is operable to be deployed from the tissue tacking cartridge.2. The apparatus of claim 1 , wherein the lower jaw is fixed and the upper jaw is rotatable relative to the lower jaw claim 1 , wherein the tissue tacking cartridge is coupled to the lower jaw.3. The apparatus of claim 2 , wherein the end effector comprises a firing beam claim 2 , wherein the firing beam is configured to advance distally through the end effector claim 2 , wherein the firing beam is operable to deploy the at least one fastener from the tissue tacking cartridge.4. The apparatus of claim 3 , wherein the firing beam comprises fastener driving cams configured to deploy the at least one fastener from the tissue tacking cartridge.5. The apparatus of claim 3 , wherein the end effector ...

BIPOLAR ELECTROSURGICAL FEATURES FOR TARGETED HEMOSTASIS

An apparatus is configured to operate on tissue. The apparatus includes an end effector with an upper jaw and a lower jaw. The upper jaw is configured to pivot relative to the lower jaw. The apparatus also includes an electrode cap coupled to either the upper or lower jaw. The electrode cap includes a first electrode surface configured at a first polarity and a second electrode surface configured at a second polarity. The second polarity is opposite to the first polarity. The electrode cap is configured to be applied to tissue such that the electrode cap is operable to deliver bipolar RF energy to the tissue. The electrode cap may be used to selectively weld bleeding tissue in a localized fashion, without having to place the tissue between the jaws, and without having to use an instrument separate from the jaws. 1. An apparatus for operating on tissue , the apparatus comprising: (i) an upper jaw, and', '(ii) a lower jaw, wherein the upper jaw is configured to pivot relative to the lower jaw; and, '(a) an end effector, wherein the end effector comprises (i) a first electrode surface configured at a first polarity, and', '(ii) a second electrode surface configured at a second polarity, wherein the second polarity is opposite to the first polarity;', 'wherein the electrode cap is configured to be applied to tissue, wherein the electrode cap is operable to deliver bipolar RF energy to tissue., '(b) an electrode cap, wherein the electrode cap is selectively coupled to one of either the upper or lower jaw, wherein the electrode cap comprises2. The apparatus of claim 1 , wherein the electrode cap is coupled to the lower jaw.3. The apparatus of claim 2 , wherein the lower jaw comprises an engagement recess claim 2 , wherein the electrode cap comprises a protrusion claim 2 , wherein the protrusion is configured to be inserted within the engagement recess to couple the electrode cap to the lower jaw.4. The apparatus of claim 1 , wherein the first electrode surface and the ...

Anvil assemblies with collapsible frames for circular staplers

Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed.

TISSUE THICKNESS COMPENSATOR CONFIGURED TO REDISTRIBUTE COMPRESSIVE FORCES

A tissue thickness compensator may generally comprise a compressible core comprising a plurality of movable particles, and a wrap surrounding the compressible core. The plurality of movable particles may comprise at least one medicament. A tissue thickness compensator may generally comprise a compressible core comprising a plurality of crushable particles, and a wrap surrounding the compressible core. The plurality of crushable particles may comprise at least one medicament. The compressible core may comprise a material selected from a group consisting of a biocompatible material. The wrap may comprise a material selected from a group consisting of a biocompatible material. Articles of manufacture comprising the tissue thickness compensator and methods of making and using the tissue thickness compensator are also described. 1. A tissue thickness compensator configured to redistribute compressive forces applied to said tissue thickness compensator , said tissue thickness compensator comprising:a compressible core comprising a plurality of crushable particles distributed within; anda wrap surrounding said compressible core.2. The tissue thickness compensator of claim 1 , wherein said crushable particles comprise at least one medicament.3. The tissue thickness compensator of claim 1 , wherein said compressible core comprises a material selected from the group consisting of albumin claim 1 , alginate claim 1 , carbohydrate claim 1 , casein claim 1 , cellulose claim 1 , chitin claim 1 , chitosan claim 1 , collagen claim 1 , blood claim 1 , dextran claim 1 , elastin claim 1 , fibrin claim 1 , fibrinogen claim 1 , gelatin claim 1 , heparin claim 1 , hyaluronic acid claim 1 , keratin claim 1 , protein claim 1 , serum claim 1 , starch claim 1 , poly(lactic acid) claim 1 , poly(glycolic acid) claim 1 , poly(hydroxybutyrate) claim 1 , poly(phosphazine) claim 1 , polyesters claim 1 , polyethylene glycols claim 1 , polyalkyleneoxides claim 1 , polyacrylamides claim 1 , ...

TISSUE THICKNESS COMPENSATOR CONFIGURED TO REDISTRIBUTE COMPRESSIVE FORCES

A tissue thickness compensator may generally comprise a compressible core comprising a plurality of movable particles, and a wrap surrounding the compressible core. The plurality of movable particles may comprise at least one medicament. A tissue thickness compensator may generally comprise a compressible core comprising a plurality of crushable particles, and a wrap surrounding the compressible core. The plurality of crushable particles may comprise at least one medicament. The compressible core may comprise a material selected from a group consisting of a biocompatible material. The wrap may comprise a material selected from a group consisting of a biocompatible material. Articles of manufacture comprising the tissue thickness compensator and methods of making and using the tissue thickness compensator are also described. 1. A tissue thickness compensator configured to redistribute compressive forces applied to said tissue thickness compensator , said tissue thickness compensator comprising:a compressible core comprising a plurality of crushable particles distributed within; anda wrap surrounding said compressible core.2. The tissue thickness compensator of claim 1 , wherein said crushable particles comprise at least one medicament.3. The tissue thickness compensator of claim 1 , wherein said compressible core comprises a material selected from the group consisting of albumin claim 1 , alginate claim 1 , carbohydrate claim 1 , casein claim 1 , cellulose claim 1 , chitin claim 1 , chitosan claim 1 , collagen claim 1 , blood claim 1 , dextran claim 1 , elastin claim 1 , fibrin claim 1 , fibrinogen claim 1 , gelatin claim 1 , heparin claim 1 , hyaluronic acid claim 1 , keratin claim 1 , protein claim 1 , serum claim 1 , starch claim 1 , poly(lactic acid) claim 1 , poly(glycolic acid) claim 1 , poly(hydroxybutyrate) claim 1 , poly(phosphazine) claim 1 , polyesters claim 1 , polyethylene glycols claim 1 , polyalkyleneoxides claim 1 , polyacrylamides claim 1 , ...

TISSUE THICKNESS COMPENSATOR CONFIGURED TO REDISTRIBUTE COMPRESSIVE FORCES

A tissue thickness compensator may generally comprise a compressible core comprising a plurality of movable particles, and a wrap surrounding the compressible core. The plurality of movable particles may comprise at least one medicament. A tissue thickness compensator may generally comprise a compressible core comprising a plurality of crushable particles, and a wrap surrounding the compressible core. The plurality of crushable particles may comprise at least one medicament. The compressible core may comprise a material selected from a group consisting of a biocompatible material. The wrap may comprise a material selected from a group consisting of a biocompatible material. Articles of manufacture comprising the tissue thickness compensator and methods of making and using the tissue thickness compensator are also described. 1. A tissue thickness compensator configured to redistribute compressive forces applied to said tissue thickness compensator , said tissue thickness compensator comprising:a compressible core comprising a plurality of crushable particles distributed within; anda wrap surrounding said compressible core.2. The tissue thickness compensator of claim 1 , wherein said crushable particles comprise at least one medicament.3. The tissue thickness compensator of claim 1 , wherein said compressible core comprises a material selected from the group consisting of albumin claim 1 , alginate claim 1 , carbohydrate claim 1 , casein claim 1 , cellulose claim 1 , chitin claim 1 , chitosan claim 1 , collagen claim 1 , blood claim 1 , dextran claim 1 , elastin claim 1 , fibrin claim 1 , fibrinogen claim 1 , gelatin claim 1 , heparin claim 1 , hyaluronic acid claim 1 , keratin claim 1 , protein claim 1 , serum claim 1 , starch claim 1 , poly(lactic acid) claim 1 , poly(glycolic acid) claim 1 , poly(hydroxybutyrate) claim 1 , poly(phosphazine) claim 1 , polyesters claim 1 , polyethylene glycols claim 1 , polyalkyleneoxides claim 1 , polyacrylamides claim 1 , ...

BIOPSY CANNULA ADJUSTABLE DEPTH STOP

A biopsy system with a grid plate used as either a lateral or medial compression plate of a localization fixture used with a breast coil includes a rotatable guide cube that may be inserted into a desired rectangular recess in the grid plate after rotating to position a selected guide hole in the desired spatial orientation. Versions of a guide cube include those rotatable in two axes to provide additional hole positions, angled holes, enlarged circular holes that function with a rotating guide to support a noncircular biopsy instrument cannula (e.g., trocar/sleeve combination, core biopsy probe of a biopsy device) for rotation. A rotating guide may have an unlocked state for easily sliding to a selected longitudinal position thereon. Thereafter, the rotating guide is locked to serve as a positive depth stop (e.g., quarter turn locking elastomeric rings, triangular and scissor clips, and shutter depth stops). 1. A device for use with a biopsy cannula , the device comprising:a guiding portion defining a shaft aperture sized to receive and at least partially circumferentially encompass the biopsy cannula;a locking member defining an elongate through hole configured to receive the biopsy cannula, wherein the locking member comprises one or more resilient ribs extending inwardly within the through hole, wherein the one or more resilient ribs are configured to bind against the biopsy cannula upon relative rotation between the biopsy cannula and the locking member to a locking position, wherein the locking member and guiding portion are configured to restrict the depth of insertion of the biopsy cannula through the guiding portion when the one or more resilient ribs of the locking members are bound against the biopsy cannula in a locking position.2. The device of claim 1 , wherein the locking member has flattened elongate sides.3. The device of claim 1 , wherein the elongate through hole has an inner corner claim 1 , wherein at least one of the one or more resilient ribs ...

CIRCULAR SURGICAL STAPLERS WITH FOLDABLE ANVIL ASSEMBLIES

Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed.

TISSUE THICKNESS COMPENSATOR CONFIGURED TO REDISTRIBUTE COMPRESSIVE FORCES

A tissue thickness compensator may generally comprise a compressible core comprising a plurality of movable particles, and a wrap surrounding the compressible core. The plurality of movable particles may comprise at least one medicament. A tissue thickness compensator may generally comprise a compressible core comprising a plurality of crushable particles, and a wrap surrounding the compressible core. The plurality of crushable particles may comprise at least one medicament. The compressible core may comprise a material selected from a group consisting of a biocompatible material. The wrap may comprise a material selected from a group consisting of a biocompatible material. Articles of manufacture comprising the tissue thickness compensator and methods of making and using the tissue thickness compensator are also described. 1. A tissue thickness compensator configured to redistribute compressive forces applied to said tissue thickness compensator , said tissue thickness compensator comprising:a compressible core comprising a plurality of crushable particles distributed within; anda wrap surrounding said compressible core.2. The tissue thickness compensator of claim 1 , wherein said crushable particles comprise at least one medicament.3. The tissue thickness compensator of claim 1 , wherein said compressible core comprises a material selected from the group consisting of albumin claim 1 , alginate claim 1 , carbohydrate claim 1 , casein claim 1 , cellulose claim 1 , chitin claim 1 , chitosan claim 1 , collagen claim 1 , blood claim 1 , dextran claim 1 , elastin claim 1 , fibrin claim 1 , fibrinogen claim 1 , gelatin claim 1 , heparin claim 1 , hyaluronic acid claim 1 , keratin claim 1 , protein claim 1 , serum claim 1 , starch claim 1 , poly(lactic acid) claim 1 , poly(glycolic acid) claim 1 , poly(hydroxybutyrate) claim 1 , poly(phosphazine) claim 1 , polyesters claim 1 , polyethylene glycols claim 1 , polyalkyleneoxides claim 1 , polyacrylamides claim 1 , ...

TISSUE THICKNESS COMPENSATOR CONFIGURED TO REDISTRIBUTE COMPRESSIVE FORCES

A tissue thickness compensator may generally comprise a compressible core comprising a plurality of movable particles, and a wrap surrounding the compressible core. The plurality of movable particles may comprise at least one medicament. A tissue thickness compensator may generally comprise a compressible core comprising a plurality of crushable particles, and a wrap surrounding the compressible core. The plurality of crushable particles may comprise at least one medicament. The compressible core may comprise a material selected from a group consisting of a biocompatible material. The wrap may comprise a material selected from a group consisting of a biocompatible material. Articles of manufacture comprising the tissue thickness compensator and methods of making and using the tissue thickness compensator are also described. 118-. (canceled)19. A surgical stapler , comprising:a first jaw comprising a first bioabsorbable matrix; anda second jaw comprising a second bioabsorbable matrix, wherein at least one of said first jaw and said second jaw is moveable between an open position and a closed position to clamp tissue between said first bioabsorbable matrix and said second bioabsorbable matrix;wherein at least one of said first bioabsorbable matrix and said second bioabsorbable matrix comprises a plurality of layers including a fibrous layer, wherein said fibrous layer further comprises a plurality of deformable structures each having an equilibrium configuration, and wherein said deformable structures are expandable and compressible from said equilibrium configurations to reshape said fibrous layer and accommodate for variations in tissue thickness when tissue is clamped between said first bioabsorbable matrix and said second bioabsorbable matrix.20. The surgical stapler of claim 19 , wherein said fibrous layer comprises a woven material.21. The surgical stapler of claim 20 , wherein said fibrous layer further comprises a fiber selected from the group consisting of ...

Articulation joint features for articulating surgical device

An electrosurgical device comprises a body, an end effector, a cutting member, and a shaft extending between the body and the end effector. The end effector includes a pair of jaws and at least one electrode operable to deliver RF energy to tissue clamped between the jaws. The cutting member is operable to cut tissue clamped between the jaws. The shaft includes an articulation section that is operable to selectively position the end effector at non-parallel positions relative to the longitudinal axis of the shaft. The articulation section may include beads, segments, asymmetric features, preformedly bent features, an integral hinge, a helical cutout or spring, clevis features, an angled joint, a beaded actuation linkage, and/or an offset pivot, among other things. The device may also include a crimped cutting member, a retroacting cutting member, dual pivoting jaws, and/or a wire tensioning assembly.

Surgical stapling device with adjunct material application feature

A surgical instrument includes a handle portion, a shaft housing a firing bar, an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft. The lower jaw is configured to receive a removable cartridge. The cartridge includes a housing, a plurality of staples disposed in the housing, and a deck disposed over the plurality of staples. The deck defines apertures, with each aperture being substantially disposed over each staple. The cartridge further includes an agent. The firing bar is operable to assist with releasing the agent onto a severed line of tissue when the firing bar is advanced.

Collapsible anvil plate assemblies for circular surgical stapling devices

Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed.

Bipolar electrosurgical features for targeted hemostasis

An apparatus is configured to operate on tissue. The apparatus includes an end effector with an upper jaw and a lower jaw. The upper jaw is configured to pivot relative to the lower jaw. The apparatus also includes an electrode cap coupled to either the upper or lower jaw. The electrode cap includes a first electrode surface configured at a first polarity and a second electrode surface configured at a second polarity. The second polarity is opposite to the first polarity. The electrode cap is configured to be applied to tissue such that the electrode cap is operable to deliver bipolar RF energy to the tissue. The electrode cap may be used to selectively weld bleeding tissue in a localized fashion, without having to place the tissue between the jaws, and without having to use an instrument separate from the jaws.

Adjunct therapy device for applying hemostatic agent

A surgical instrument includes a handle portion, a shaft housing a firing bar, an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft. The lower jaw is configured to receive a removable cartridge. The cartridge includes a housing, a plurality of staples disposed in the housing, and a deck disposed over the plurality of staples. The deck defines apertures, with each aperture being substantially disposed over each staple. The cartridge further receives a buttress material stored in one or both of the anvil or cartridge. The material is releasable onto severed tissue via a firing bar severing the buttress material in response to the longitudinal closing motion.

Surgical stapling instruments

Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple- forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed.

surgical instrument apparatus

DISPOSITIVO DE TERAPIA AUXILIAR PARA APLICAÇÃO DE AGENTE HEMOSTÁTICO. A presente invenção refere-se a um instrumento cirúrgico que inclui um porção de cabo, uma haste que aloja uma barra de disparo, e um atuador de extremidade que compreende uma bigorna, uma mandíbula inferior, e um conjunto de grampeamento e separação responsivo a um movimento de fechamento longitudinal produzido pela porção de cabo e pela haste. A mandíbula inferior é configurada para receber um cartucho removível. O cartucho inclui um compartimento, uma pluralidade de grampos dispostos no alojamento, e uma plataforma disposta na pluralidade de grampos. A plataforma define aberturas, sendo que cada abertura é substancialmente disposta em cada grampo. O cartucho recebe, adicionalmente, um material de apoio armazenado em um ou ambos dentre a bigorna ou cartucho. O material é liberável sobre o tecido separado através de uma barra de disparo que separa o material de apoio em resposta ao movimento de fechamento longitudinal. AUXILIARY THERAPY DEVICE FOR APPLICATION OF HEMOSTATIC AGENTS. The present invention relates to a surgical instrument that includes a cable portion, a rod that houses a firing bar, and an end actuator that comprises an anvil, a lower jaw, and a stapling and separation set responsive to a longitudinal closing movement produced by the cable portion and the stem. The lower jaw is configured to receive a removable cartridge. The cartridge includes a compartment, a plurality of clips arranged in the housing, and a platform arranged in the plurality of clips. The platform defines openings, each opening being substantially arranged in each clamp. The cartridge additionally receives support material stored in one or both of the anvil or cartridge. The material is released on the separated tissue through a firing bar that separates the support material in response to the longitudinal closing movement.

Grid and rotatable cube guide localization fixture for biopsy device

A biopsy system with a grid plate used as either a lateral or medial compression plate of a localization fixture used with a breast coil includes a rotatable guide cube that may be inserted into a desired rectangular recess in the grid plate after rotating to position a selected guide hole in the desired spatial orientation. Versions of a guide cube include those rotatable in two axes to provide additional hole positions, angled holes, enlarged circular holes that function with a rotating guide to support a noncircular biopsy instrument cannula (e.g., trocar/sleeve combination, core biopsy probe of a biopsy device) for rotation. A rotating guide may have an unlocked state for easily sliding to a selected longitudinal position thereon. Thereafter, the rotating guide is locked to serve as a positive depth stop (e.g., quarter turn locking elastomeric rings, triangular and scissor clips, and shutter depth stops).

Articulation joint features for articulating surgical device

An electrosurgical device comprises a body, an end effector, a cutting member, and a shaft extending between the body and the end effector. The end effector includes a pair of jaws and at least one electrode operable to deliver RF energy to tissue clamped between the jaws. The cutting member is operable to cut tissue clamped between the jaws. The shaft includes an articulation section that is operable to selectively position the end effector at non-parallel positions relative to the longitudinal axis of the shaft. The articulation section may include beads, segments, asymmetric features, preformedly bent features, an integral hinge, a helical cutout or spring, clevis features, an angled joint, a beaded actuation linkage, and/or an offset pivot, among other things. The device may also include a crimped cutting member, a retroacting cutting member, dual pivoting jaws, and/or a wire tensioning assembly.

Articulation joint features for articulating surgical device