Entries |
Document | Title | Date |
20080210739 | Surgical Stapling Device - A surgical stapling device is disclosed for the treatment of internal hemorrhoids. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. The head portion includes an anvil assembly including a tiltable anvil which will tilt automatically after the device has been fired and unapproximated. The tiltable anvil provides a reduced anvil profile to reduce trauma during removal of the device after the anastomoses procedure has been performed. The anvil assembly of the stapling device may include an approximation mechanism having an anvil retainer including an elongated distal extension dimensioned to be telescopingly received within a longitudinal bore of an anvil center rod of the anvil assembly. The elongated distal extension is of a length to provide telescopic engagement with the anvil center rod without obstructing visualization of the surgical site. A kit including a surgical instrument having a removable anvil assembly and an anvil assembly insertion handle is also disclosed. The kit may also include a speculum, an anal dialator and/or an obturator. | 09-04-2008 |
20080245842 | Surgical stapling apparatus with powered retraction - A surgical stapling apparatus comprises a handle assembly, an actuation shaft having a connector, and a retraction mechanism positioned within the handle assembly. The retraction mechanism includes a motor coupled to a transmission shaft, a first gear rotatably mounted on the transmission shaft, the first gear configured to engage a second gear, a clutch operatively attached to the second gear, a main shaft rotatably connected to the clutch, and a pulley coupled to the main shaft, the pulley being operatively attached to the connector. The connector and the pulley may be attached via a cable. The retraction mechanism may include a spring motor for maintaining the cable in tension. The spring motor may have a spring element wrapped around and interconnecting at least two arbors. | 10-09-2008 |
20080277450 | Staples, Staplers, Anastomosis Devices, and Methods for Their Applications - A stapling element is provided, operative to pierce and penetrate a tissue by a first end, and close around the tissue. The staple is adapted for joining tissue of diverse geometries, for example, joining edge to edge, joining two or more layers together, and joining a mesh, or a patch to the tissue. Three factors help prevent local necrosis: 1. The self-closing feature of the staple does not lead to tissue crushing. 2. Edge seams are applied generally perpendicular to the tissue edge, allowing for blood supply to the tissue edge. 3. Excess tissue is cut off at the seam, minimizing the amount of tissue that may undergo local necrosis. A physical feature prevents the staple from rotating, when in an application shaft, to maintain a predetermined closing direction. The application devices provide ergonomic means for staple application in difficult-to-reach places. In addition, they provide standardization, so that the skilled and the less so may reach results of comparable quality, and the effects of fatigue and loss of patience will be minimized. The wide variety of stapling elements, which come in different sizes and shapes, and the wide variety of devices that are disclosed provide solutions to many surgical problems, for open and minimally invasive surgeries. The stapling element may be formed of an alloy, a pure metal, a polymer, or a composite of at least two materials. Additionally, staplers, anastomosis devices, and methods for their applications are described. | 11-13-2008 |
20080290135 | Surgical Stapler - A surgical device is described herein that can be used to fire different types and sizes of disposable loading units. In a preferred embodiment, the device applies parallel rows of surgical fasteners to body tissue and concomitantly forms an incision between the rows of staples during an endoscopic or laparoscopic surgical procedure. The device can be utilized with disposable loading units configured to apply linear rows of staples measuring from about 15 mm in length to about 60 mm in length and can be used to fire disposable loading units containing surgical clips and individual staples. | 11-27-2008 |
20080302855 | Device and Method for the Thereapy of Obesity - An anastomotic device, particularly a circular stapler ( | 12-11-2008 |
20090001127 | Rotatable Stapling Head Of A Surgical Stapler - The present invention provides a rotatable stapling head of a surgical stapler, which comprises a staple cartridge ( | 01-01-2009 |
20090001128 | Washer for use with a surgical stapling instrument - A surgical stapler including a “breakaway” washer that is inserted into an anvil. In various embodiments, the washer can include a circular inner portion and a circular outer portion. In one various embodiment, the outer portion may include a number of staple guide sections that define openings through which staple ends of surgical staples are driven when the surgical stapler is fired and are thereafter bent, or turned, by the anvil. In various embodiments, the staple ends may then contact and be retained by the staple guide sections so that the staple ends do not re-penetrate or otherwise re-puncture stapled tissue. In one various embodiment, the washer can be dissolvable or bioabsorbable. | 01-01-2009 |
20090001129 | SURGICAL STAPLING APPARATUS WITH POWERED ARTICULATION - The surgical stapling apparatus includes a handle assembly, an elongated body extending distally from the handle assembly, and an articulation mechanism for articulating a tool assembly. The articulation mechanism includes a first gear rotatably mounted on a transmission shaft and configured to engage a second gear, a clutch interconnecting the second gear and a main shaft; and a yoke shaft coupled to the main shaft and adapted to linearly advance a J-channel, the J-channel operatively connected to an articulation link. A motor assembly may rotate the transmission shaft of the articulation mechanism. Alternatively, the articulation mechanism may include an articulation knob. Users may manually rotate the articulation knob to articulate the tool assembly of the surgical stapling apparatus. | 01-01-2009 |
20090039138 | Vascular Closure System With Splayable Staple - A medical device for closing an opening in tissue may include a staple with a plurality of tines, where the staple is deformable from an initial configuration to a splayed configuration and then to a closed configuration; a cradle that includes a distal stop and a proximal stop proximal to the distal stop extending therefrom, where the cradle holds a portion of the staple between the proximal stop and the distal stop, and where the proximal stop and distal stop are spaced apart from one another a fixed distance substantially equal to the thickness of the portion of the staple held therebetween, where that portion of the staple substantially contacts both stops in the initial configuration; and a housing, where the cradle is movable relative to that housing. | 02-12-2009 |
20090057370 | Surgical Stapling Apparatus - A surgical stapling device particularly suited for endoscopic procedures is described. The device includes a handle assembly and an elongated body extending distally from the handle assembly. The distal end of the elongated body is adapted to engage a disposable loading unit. A control rod having a proximal end operatively connected to the handle assembly includes a distal end extending through the elongated body. A control rod locking member is provided to prevent movement of the control rod until the disposable loading unit is fully secured to the elongated body of the stapling device. | 03-05-2009 |
20090095792 | HUB FOR POSITIONING ANNULAR STRUCTURE ON A SURGICAL DEVICE - An apparatus for forming an anastomosis between adjacent intestinal sections is provided. The apparatus includes an anastomosis device having a cartridge assembly; and an anvil assembly having a shaft extending therefrom and a connection feature on the shaft. The apparatus further including a hub having a connection portion selectively attachable to the connection feature of the shaft, the connection portion defining a lumen for receiving the shaft; and an annular structure operatively connected to the hub and extending radially outwardly therefrom, the hub being arranged for locating the annular structure between the adjacent intestinal sections when connected to the shaft. | 04-16-2009 |
20090173767 | Raised Boss for Staple Guide - A surgical stapling device including a handle assembly, a body portion, and a head portion is disclosed. The handle assembly includes a firing trigger. The body portion extends distally from the handle assembly. The head portion includes an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The shell assembly includes a pusher and an inner guide portion. The pusher includes at least one slot therein and is movable in relation to the anvil assembly between retracted and extended positions. The inner guide portion is disposed adjacent at least a portion of the pusher and includes a raised boss extending therefrom. The raised boss is configured to shroud the slot in the pusher when the pusher is in the retracted position. | 07-09-2009 |
20090188965 | DEVICE AND METHOD FOR APPLYING ROTARY TACKS - A tacker for applying a rotary tack, including a drive shaft coupled to a trigger, wherein operating the trigger causes rotation of the drive shaft, an articulated applicator arm pivotally connected to the drive shaft at a pivot, the articulated applicator arm including a rotatable output shaft connected to a magazine that holds a rotary tack, and a clutch mechanism which, at initial movement of the trigger, has a first orientation that causes the articulated applicator arm to pivot about the pivot until reaching a stop, and has a second orientation wherein upon continued movement of the trigger, the clutch mechanism permits the drive shaft to rotate the output shaft and cause application of the rotary tack from the magazine. | 07-30-2009 |
20090250502 | SURGICAL STAPLING DEVICE - A surgical stapling device including a self-righting anvil assembly is disclosed. The anvil assembly includes an anvil center rod and a pivotable anvil head. The surgical stapling device includes an anvil retainer assembly having a locking member in the form of a trocar for moving the anvil head from its tilted position to its operative position upon attachment of the anvil assembly to the stapling device. A cam member is provided to retain the locking member in a first or locked position and, thus, the anvil head in the operative position until after the stapling device has been fired. In another embodiment, a tiltable anvil assembly for use with a surgical stapling device is disclosed. The anvil assembly includes a center rod and a head assembly which is pivotally secured to the center rod. The head assembly includes a housing, a post, an anvil plate and a backup member. The backup member is movably positioned about the post from a first position preventing pivotal movement of the head assembly to a second position permitting pivotal movement of the head assembly. A retainer member is positioned between the backup member and the housing to prevent movement of the backup member from its first position to its second position until a predetermined force has been applied to the backup member. In another embodiment, a passive lockout mechanism is disclosed which is operably associated with a trigger lock on the handle assembly of the surgical stapling device. The passive lockout mechanism is positioned to prevent movement of the anvil assembly in relation to the shell assembly of the device from an approximated position to an unapproximated position when the trigger lock is in an unlocked position. | 10-08-2009 |
20090272786 | SURGICAL STAPLING INSTRUMENT FOR APPLYING A LARGE STAPLE THROUGH A SMALL DELIVERY PORT AND A METHOD OF USING THE SURGICAL STAPLER TO SECURE A TISSUE FOLD - A low-profile surgical stapler enables a large-sized staple to be delivered into a body cavity through a small opening or port. The surgical stapler includes a handle having a trigger movably coupled to the handle. The surgical stapler also includes an elongated, tubular shaft extends distally from the handle. The tubular shaft includes a proximal end secured to the handle and a distal end in which a deployment opening is formed. A staple deploying assembly is disposed within an interior of the shaft for discharging staples from the deployment opening at the distal end of the shaft, the staple deploying assembly supporting a staple such that a longitudinal axis of the staple is aligned with a longitudinal axis of the shaft. The deployment opening is shaped and dimensioned to permit the deployment of the staples from within the shaft, out of the deployment opening and into adjacent tissue. | 11-05-2009 |
20090302089 | COMPRESSION ASSEMBLIES AND APPLICATORS FOR USE THEREWITH - A compression assembly for use in compressing tissue comprising a first portion which includes a first compression element and a second portion which comprises a second compression element, at least one support element, and at least one spring element. Typically the spring element is formed of a shape-memory material. The at least one spring element is in compressive force contact with the second compression element and the tissue to be joined is positioned between the first and second compression elements. A plurality of needles on one of the support elements is operative to pierce the tissue and the first portion of the assembly, holding the first compression element to the second portion of the assembly. The invention is appropriate for joining severed tissue in anastomosis procedures or closing natural or surgically produced tissue perforations. | 12-10-2009 |
20100001038 | PIVOTING TACKER - A tacker for applying a rotary tack, including a drive shaft coupled to a trigger, wherein operating the trigger causes rotation of the drive shaft, a magazine that holds a rotary tack rotatingly connected to the drive shaft, and an articulated applicator arm including a rotatable output shaft rotatingly connected to the magazine, wherein the magazine is proximal to the articulated applicator arm, the articulated applicator arm including one or more pivoting links, each pivoting link including a link shaft, wherein operation of the trigger causes the driver shaft and the one or more link shafts to rotate so as to distally advance the rotary tack from the magazine past the one or more pivoting links. | 01-07-2010 |
20100019016 | Vascular Anastomotic Staplers - Vascular anastomotic staplers ( | 01-28-2010 |
20100044410 | Endovascular Stapling Apparatus and Methods of Use - An endovascular stapling apparatus for delivering a staple to a vessel of a patient, including a plurality of clips, a housing, and a rod. Each of the clips includes a bridge and legs that self-transition from a biased state to a natural state in which the legs each form a loop. The housing defines a channel and a window open to the channel. The clips are retained within the channel in the biased state. The rod is slidably disposed within the channel, selectively moves the clips toward and away from the window, and releases the clips from the window. | 02-25-2010 |
20100084453 | Circular stapler - A circular stapler facilitate performing end to end anastomosis; further an occasional prompt with sound effect warning timely firing the stapler bolts. A circular stapler includes a bolting machine ( | 04-08-2010 |
20100096435 | SURGICAL STAPLING INSTRUMENT WITH APPARATUS FOR PROVIDING ANVIL POSITION FEEDBACK - Circular stapling instruments for cutting and applying one or more surgical staples to tissue are disclosed. The instruments include various forms of feedback systems designed to provide at least one mode of feedback to the surgeon when the anvil has been attached to the device and/or when the anvil has been attached to the device and oriented in a firing position. Various types of feedback indicators are disclosed such as illumination devices, sound generating devices and vibration generating devices. In various embodiments, the feedback indicator comprises at least one illumination device mounted on the anvil which indicates that the anvil has been properly attached to the instrument and which can also serve to illuminate the surgical site. | 04-22-2010 |
20100102105 | DEVICE AND METHOD FOR DELIVERING SHAPE-MEMORY STAPLES - An apparatus comprising a plurality of chambers for receiving an associated plurality of staples, each formed with a shape memory that allows the staple to adopt a straightened configuration, when placed in a stapler, and a deployed configuration for suturing when released from the stapler; and a sleeve moveable relative to the chambers between a first position, in which the staples are trapped by the sleeve within the chambers in the straightened configuration, and a second position, whereby the staples are freed to adopt the deployed configuration, wherein the sleeve is adapted to move between the first and second positions by rotating relative to the chambers. | 04-29-2010 |
20100108741 | SURGICAL STAPLER - A surgical stapler comprising a handle assembly, an elongated body portion extending distally from the handle assembly, and a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The anvil assembly has an anvil head and a plurality of projections extending proximally of the anvil head, the projections engageable with a portion of the shell assembly. | 05-06-2010 |
20100147923 | CIRCULAR ANASTOMOSIS STRUCTURES - The present disclosure provides annular support structures for use in conjunction with stapling devices. These annular support structures may be suitable for reducing occurrences of leaking, bleeding and/or stricture, as well as anastomotic tension, when anastomosing various body structures. | 06-17-2010 |
20100155454 | STRUCTURE CONTAINING WOUND TREATMENT MATERIAL - According to an aspect of the present disclosure, an anvil assembly for a circular stapling apparatus, is disclosed. The anvil assembly includes an anvil head configured to support an anvil plate thereon; a shaft extending from the anvil head and configured to selectively engage a connection member of the circular stapling apparatus; an anvil plate operatively connected to the anvil head, the anvil plate defining a plurality of staple forming pockets therein; and a wound treatment material disposed in each staple forming pocket of the anvil plate. The wound treatment material is at least one of an adhesive, a sealant, a hemostat and a medicament. | 06-24-2010 |
20100187285 | SURGICAL STAPLER FOR APPLYING A LARGE STAPLE THOUGH A SMALL DELIVERY PORT AND A METHOD OF USING THE STAPLER TO SECURE A TISSUE FOLD - A surgical fastener applier having a handle and a fastener housing extending from the handle. The housing contains a plurality of surgical fasteners. The surgical fasteners have a base, and two legs extending away from the base, wherein the legs have distal end segments. The fastener has a first shape wherein the distal end segments bend towards each other so that they are adjacent and form the fastener into a first loop. The fastener has a second shape wherein the distal end segments are spaced apart from each other along substantially an entire length thereof. The fastener also has a third shape wherein the distal end segments bend towards each other in so that they are adjacent and form the fastener into a second loop wherein the second loop having a width greater than a width of the first loop. The applier includes a means for forming the fastener into the second and third shapes. | 07-29-2010 |
20100230466 | SURGICAL APPARATUS AND STRUCTURE FOR APPLYING SPRAYABLE WOUND TREATMENT MATERIAL - According to an aspect of the present disclosure, an apparatus for forming an anastomosis between adjacent sections of tissue is provided. The apparatus includes a body portion; an actuation assembly operatively supported at a proximal end of the body portion; an anvil assembly movably mounted at the distal end of the body portion for movement toward and away from the body portion; an approximation assembly extending between the body portion and the anvil assembly for moving the anvil toward and away from the tubular body portion; a dispersion assembly operatively associated with the approximation assembly, the dispersion assembly including at least one angled surface defining at least one channel interposed between the anvil assembly and the body portion and being configured to dispense a fluid therefrom; and at least one conduit for conducting wound treatment material to the dispersion assembly. | 09-16-2010 |
20100230467 | Surgical Apparatus and Structure for Applying Sprayable Wound Treatment Material - According to an aspect of the present disclosure, an apparatus for forming an anastomosis between adjacent sections of tissue is provided. The apparatus includes a body portion; an actuation assembly operatively supported at a proximal end of the body portion; an anvil assembly movably mounted at the distal end of the body portion for movement toward and away from the body portion; an approximation assembly extending between the body portion and the anvil assembly for moving the anvil toward and away from the tubular body portion; a dispersion assembly operatively associated with the approximation assembly, the dispersion assembly including at least one angled surface defining at least one channel interposed between the anvil assembly and the body portion and being configured to dispense a fluid therefrom; and at least one conduit for conducting wound treatment material to the dispersion assembly. | 09-16-2010 |
20100301098 | SURGICAL INSTRUMENT AND METHOD FOR PERFORING A RESECTION - An end effector for use with a surgical instrument comprising an anvil shaft, a first anvil assembly disposed at a distal portion of the anvil shaft and a second anvil assembly mountable on the anvil shaft proximally of the first anvil assembly. Also, a method for performing a surgical procedure is provided including the steps of providing a surgical instrument including a first cartridge assembly and a first anvil assembly having an anvil shaft, approximating the first anvil assembly and first cartridge assembly and ejecting staples from the first cartridge assembly. The method further includes removing the first cartridge assembly from the tubular organ, and inserting a second anvil assembly into the tubular organ to engage the anvil shaft of the first anvil assembly and ejecting staples from a second cartridge assembly towards the second anvil assembly. | 12-02-2010 |
20110006104 | INSTRUMENT FOR APPLYING A SURGICAL FASTENER - An instrument for applying one or more surgical fasteners includes a tubular shaft having a distal end through which each fastener is deployed. A delivery system is contained within the tubular shaft for advancing the surgical fasteners along, and out of, the instrument. An actuator is operatively associated with the delivery system. On or more wall structure modifications in the tubular shaft, such as openings, reliefs or cut-outs, interact with the delivery system. An outer tubular shaft is mounted over the wall structure modifications to reinforce the instrument against permanent deformation or inward distortion if excessive forces are encountered. | 01-13-2011 |
20110011916 | ANASTOMOSIS DEVICE - The present invention is directed to a circular anastomosis surgical stapler and methods of use. The circular anastomosis surgical stapler includes an operator control assembly, a tubular shaft having a distal end that is associated with a head portion, and an actuating head portion. The actuating head portion includes a detachable anvil portion with an axially extending stem portion. The anvil portion is engagable with the remainder of the head portion, which receives an array of staples. The head portion also includes an associated stapling portion with a stapling mechanism for firing an array of staples against the anvil portion. The anvil portion and the head portion matingly engage along a mating edge. The mating edge is defined by locations around the stem portion spaced from a particular position on the axis of the stem portion at axially and/or radially varying distances. | 01-20-2011 |
20110036894 | SUPPORT STRUCTURES AND METHODS OF USING THE SAME - According to an aspect of the present disclosure, an apparatus for forming an anastomosis between adjacent intestinal sections of tissue is provided. The apparatus includes an anastomosis device having an anvil and a tubular body portion, wherein the anvil is selectively attachable to the tubular body portion by a shaft; and a support structure for deposition between the intestinal sections of tissue. The support structure includes a body defining an aperture therein for receiving the shaft. The body has an outer terminal edge. The support structure includes at least one layer of expandable material disposed at the outer terminal edge of the body. | 02-17-2011 |
20110042442 | Annular Adhesive Structure - An assembly for joining tissue is provided and includes an anvil assembly and a body portion juxtaposed with respect to one another along a shaft and arranged so as to be approximated with respect to one another; and an applicator supported on the anvil assembly and configured for retaining a wound treatment material therein and for dispensing the wound treatment material therefrom. A method for joining tissue is provided and includes the steps of dispensing the wound treatment material from the applicator so as to distribute wound treatment material onto at least one of a first tissue section and a second tissue section; and approximating the anvil assembly and the body portion to one another so that the first tissue section and the second tissue section are in contact with one another with the dispensed wound treatment material interposed therebetween. | 02-24-2011 |
20110057016 | Support Structures and Methods of Using the Same - According to an aspect of the present disclosure, an apparatus for forming an anastomosis between adjacent intestinal sections of tissue is provided. The apparatus includes an anastomosis device having an anvil and a tubular body portion, wherein the anvil is selectively attachable to the tubular body portion by a shaft; and a support structure for deposition between the intestinal sections of tissue. The support structure includes a body defining an aperture therein for receiving the shaft. The body has an outer terminal edge. The support structure includes at least one layer of expandable material disposed at the outer terminal edge of the body. | 03-10-2011 |
20110084115 | SURGICAL STAPLER HAVING A CLOSURE MECHANISM - A surgical stapler comprising a first handle portion comprising a staple cartridge channel configured to receive a staple cartridge and a second handle portion comprising an anvil. The stapler further comprises a rotatable latch and a latch projection, wherein the latch is rotatably coupled to one of the first handle portion and the second handle portion and wherein the latch projection extends from the other of the first handle portion and the second handle portion. The latch is configured to engage the latch projection to move the first handle portion and the second handle portion toward one another. In various embodiments, the latch projection comprises a rotatable bearing wherein the latch is configured to contact the rotatable bearing when the latch engages the latch projection. | 04-14-2011 |
20110108604 | Method and Device for Full Thickness Resectioning of an Organ - A full-thickness resection system comprises a flexible endoscope and a stapling mechanism, wherein the endoscope is slidably received through at least a portion of the stapling mechanism. The stapling mechanism comprises an anvil and a stapling head mounted to the anvil so that the anvil and the stapling head are moveable with respect to one another between a tissue receiving position and a stapling position and wherein a gap formed between the stapling head and the anvil is larger in the tissue receiving position than it is in the stapling position. A position adjusting mechanism is provided for moving the anvil and the stapling head between the tissue receiving and stapling positions and a staple firing mechanism sequentially fires a plurality of staples from the stapling head across the gap against the anvil and through any tissue received in the gap and a knife cuts a portion of tissue received within the gap. A control unit which remains outside the body is coupled to the stapling mechanism for controlling operation of the position adjusting mechanism and the staple firing mechanism. | 05-12-2011 |
20110114700 | DEVICES AND METHODS FOR INTRODUCING A SURGICAL CIRCULAR STAPLING INSTRUMENT INTO A PATIENT - Introducers for introducing a surgical circular stapler into a patient. Various embodiments comprise cover members that are applied over a stapling head portion of the circular stapler. In some embodiments, the cover members are fabricated from a flexible stretchable material and have a bumper portion that protrudes distally beyond the distal face of the stapling head. The staples may be fired through the cover member and the balance of the cover member is withdrawn from the patient with the stapling head. Other cover embodiments are selectively movable from a position wherein the distal face of the stapling head is covered and other positions wherein the distal face of the stapling head is exposed. | 05-19-2011 |
20110220703 | END-TO-END ANASTOMOSIS INSTRUMENT AND METHOD FOR PERFORMING SAME - A surgical instrument for performing an end-to-end anastomosis of first and second luminal structures includes a housing having an actuator attached thereto and a selectively removable loading unit attached to a distal end of the housing which supports any array of surgical fasteners at a distal end thereof. The surgical fasteners are simultaneously deformable upon activation of the actuator such that a distal end of each surgical fastener secures each end of each luminal structure to complete the end-to-end anastomosis wherein the resulting eversion is exterior to the luminal structures. | 09-15-2011 |
20110284617 | RAISED BOSS FOR STAPLE GUIDE - A surgical stapling device including a handle assembly, a body portion, and a head portion is disclosed. The handle assembly includes a firing trigger. The body portion extends distally from the handle assembly. The head portion includes an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The shell assembly includes a pusher and an inner guide portion. The pusher includes at least one slot therein and is movable in relation to the anvil assembly between retracted and extended positions. The inner guide portion is disposed adjacent at least a portion of the pusher and includes a raised boss extending therefrom. The raised boss is configured to shroud the slot in the pusher when the pusher is in the retracted position. | 11-24-2011 |
20120031951 | CIRCULAR STAPLER FOR HEMORRHOID OPERATIONS - A circular stapler for performing hemorrhoidal operations is disclosed. The circular stapler includes an anvil, a stapler head and a shaft which movably supports the anvil in relation to the stapler head between open and closed positions. The stapler includes at least one displacing member, each of which is arbitrarily and/or independently displaceable along the shaft. Each of the at least one displacing members has a first end configured to engage a pursestring suture and a second end which extends through the body, e.g., the neck of the stapler. The displacing member is arbitrarily displaceable along the shaft. In one embodiment, two independently displaceable displacing members are provided. In another embodiment, the at least one displacing member is at least partially embedded in the shaft. | 02-09-2012 |
20120043370 | Structure Containing Wound Treatment Material - According to an aspect of the present disclosure, an anvil assembly for a circular stapling apparatus, is disclosed. The anvil assembly includes an anvil head configured to support an anvil plate thereon; a shaft extending from the anvil head and configured to selectively engage a connection member of the circular stapling apparatus; an anvil plate operatively connected to the anvil head, the anvil plate defining a plurality of staple forming pockets therein; and a wound treatment material disposed in each staple forming pocket of the anvil plate. The wound treatment material is at least one of an adhesive, a sealant, a hemostat and a medicament. | 02-23-2012 |
20120067937 | INTERNAL GASTRIC BANDER FOR OBESITY - A non-surgical gastric bander device and process is described. The non-surgical gastric bander device includes a staple device, an elongated articulated shaft, an operations handle and a cable connecting the operations handle to the staple device. The staple device includes a housing having an interior housing channel for receiving a slidable tube. The slidable tube includes at least one suction port, a constriction band surrounding the exterior surface of the slidable tube and a plurality of staples removably positioned adjacent the exterior surface of the slidable tube and held in place by the constriction band. The gastric bander device further includes an elongated, articulated shaft connecting the staple device to an operations handle. | 03-22-2012 |
20120080499 | JAW CLOSURE ARRANGEMENTS FOR SURGICAL INSTRUMENTS - A surgical instrument having a handle assembly and an elongated shaft configured for use with end effectors that support a staple cartridge therein. The end effectors have an anvil portion that is movable relative to the staple cartridge upon application of firing motions thereto. Various embodiments of the surgical instrument include movable closure tube arrangements that are configured to apply firing motions to the anvil upon application of a pulling motion to the closure tube from a firing system operably supported in the handle assembly. | 04-05-2012 |
20120080500 | SURGICAL STAPLING INSTRUMENT WITH COMPACT ARTICULATION CONTROL ARRANGEMENT - A surgical cutting and stapling instrument with an articulatable elongated shaft. The elongated shaft is operably coupled to a handle assembly and has an articulation joint therein. The distal end of the elongated shaft is couplable to and end effector that supports a staple cartridge therein. The end effector may be articulated relative to the elongated shaft by an articulation control system operably supported in the handle assembly. | 04-05-2012 |
20120160896 | FASTENER FOR MECHANICAL SUTURE - The fastener, in rest position, lies fully flat along a general plane. It is in a deformable material perpendicular to the said general plane so that it is able to be deformed at the time of implanting. Starting from its distal end, it comprises a curved part curved along at least a main arc of a circle and a terminal part extending the curved part and passing through or close to the centre of the main arc of a circle. | 06-28-2012 |
20120193398 | Surgical Fastener Applying Apparatus - A surgical stapler is provided. The stapler includes a tubular body portion. A cartridge assembly is disposed at a distal end of the body portion for expelling an annular array of staples. Each of the staples of the annular array of staples has a generally bent backspan. An anvil member disposed at the distal end of the tubular body portion is positioned opposite the cartridge assembly to clinch the staples in tissue upon expulsion of the staples from the cartridge assembly. The anvil member has a corresponding annular array of staple forming buckets. Each of the buckets is configured to accommodate the generally bent configuration of the staples to facilitate formation thereof. | 08-02-2012 |
20120234898 | CIRCULAR STAPLING DEVICES WITH TISSUE-PUNCTURING ANVIL FEATURES - 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. Various embodiments have a tissue-piercing feature. | 09-20-2012 |
20120241505 | TISSUE THICKNESS COMPENSATORS FOR CIRCULAR SURGICAL STAPLERS - Tissue thickness compensators for use with circular surgical staplers. Various tissue thickness compensators are disclosed for deployment between a stapler head of a surgical circular stapler and an anvil attached thereto to accommodate variances in tissue thickness during stapling. Some tissue thickness compensator arrangements include means and configurations for deploying healing agents for enhancing the healing process. | 09-27-2012 |
20120292371 | CIRCULAR STAPLING INSTRUMENT HAVING A BREAKAWAY WASHER ATTACHMENT MEMBER - A stapling cartridge assembly for a circular stapling instrument includes a casing, a staple driver, and a blade. The staple driver is receivable within the casing and configured to move within the casing from a pre-fired position to a fired position. The blade is attachable to the staple driver. The blade includes a cutting edge and a breakaway washer attachment member for fixedly attaching to a breakaway washer when the staple driver is moved from the pre-fired position to the fired position. | 11-22-2012 |
20120292372 | LOW COST ANVIL ASSEMBLY FOR A CIRCULAR STAPLER - An anvil assembly for a circular stapling instrument is provided. The anvil assembly includes a one-piece, polymer anvil and a staple-forming surface. The one-piece, polymer anvil comprises an anvil base surface and an anvil shaft extending from the anvil base surface. The staple-forming surface is attached to the anvil base surface. | 11-22-2012 |
20120292373 | ANVIL AND CARTRIDGE ALIGNMENT CONFIGURATION FOR A CIRCULAR STAPLER - A stapling reload assembly for a circular stapling instrument includes a casing, a staple holder, a staple driver, and an anvil assembly. The staple holder is attached to the casing. The staple driver includes a driver alignment surface. The staple driver is receivable within the casing and is configured to move within the casing from a pre-fired position to a fired position. The anvil assembly includes an anvil base surface, an anvil alignment surface, and a staple forming surface. The anvil base surface is configured to move from an open position away from the casing to a closed position adjacent the casing. The anvil alignment surface is configured to mate with the driver alignment surface, to rotationally align the staple forming surface with the staple holder, when the anvil base surface is in the closed position. | 11-22-2012 |
20120292374 | CIRCULAR STAPLER WITH FRICTIONAL REDUCING MEMBER - A circular stapling instrument is provided which includes a reciprocating drive shaft and a firing bar. The reciprocating drive shaft has a first engagement member at a tip of the reciprocating drive shaft and a threaded adjustment member at a base of the reciprocating drive shaft. The firing bar is movably connected at a first end with a firing trigger and movably connected at a second end with a stapling head assembly through a second engagement member. The firing bar forms a first engagement surface which faces a respective second engagement surface formed on the reciprocating drive shaft. The circular stapling instrument also includes a frictional reducing member located in between the first and second engagement surfaces in order to reduce friction between the reciprocating drive shaft and the firing bar. | 11-22-2012 |
20120305629 | Annular Support Structures - Reinforcing lumen rings are configured and adapted for use in conjunction with a circular endoscopic stapling instrument having a staple cartridge assembly and an anvil assembly. The reinforcing lumen rings maintain anastomotic lumen, e.g. as formed by the circular endoscopic stapling apparatus, in an open condition. The reinforcing lumen rings can include an annular ring having an outer terminal edge and an inner terminal edge, the outer terminal edge having a diameter which is substantially equal to an outer diameter of the staple cartridge assembly and the inner terminal edge having a diameter which is substantially equal to an inner diameter of the staple cartridge assembly. | 12-06-2012 |
20130032628 | ANORECTAL SURGICAL INSTRUMENT AND ANAL DILATOR - An anal dilator ( | 02-07-2013 |
20130032629 | Flexible Endoluminal Surgical Instrument - A surgical instrument comprises a first elongated member and a second elongated member, the first elongated member and the second elongated member being operatively connected and configured to rotate in opposite directions to substantially limit counter torque. The first and second elongated members are flexible shafts. The surgical instrument can be configured to apply fasteners to a tissue portion. This embodiment of the surgical instrument includes a cartridge having a plurality of fasteners, an anvil, said anvil and cartridge being relatively movable between spaced and approximated positions, and a sled disposed in the cartridge. The sled includes a cam member. The cam member is designed to drive the fasteners through tissue and toward the anvil. | 02-07-2013 |
20130037599 | STAPLER FOR MUCOSECTOMY - A head for a stapler used during a mucosectomy is disclosed that includes an external body, an internal body, an anvil, and a blade. The internal body includes a central hole into which a rod is slidingly inserted. One or more annular grooves are formed on a lateral surface of the rod, and are intended to receive a portion of mucosa which is included in a purse string suture as the mucosa is tied around the rod. By retracting the rod in the central hole of the internal body, the mucosa to be removed is carried into the internal body. | 02-14-2013 |
20130105551 | SURGICAL STAPLING HEAD ASSEMBLY WITH FIRING LOCKOUT FOR A SURGICAL STAPLER | 05-02-2013 |
20130126587 | SEAL ELEMENT FOR ANASTOMOSIS - A seal element for sealing between tissue lumens includes a first material for allowing tissue ingrowth and a second sealant material. | 05-23-2013 |
20130153638 | Surgical Stapling Apparatus Including Releasable Surgical Buttress - A staple cartridge for use with a surgical stapling apparatus includes a cartridge body including a tissue contacting surface defining a plurality of staple retaining slots, a staple disposed within each staple retaining slot of the cartridge body, and a substantially circular buttress. The buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion. At least one stiffened region joins the buttress to the tissue contacting surface of the cartridge body. The inner portion, the middle portion, the outer portion, and the at least one stiffened region are all formed from a common material. | 06-20-2013 |
20130193190 | Circular Stapler Including Buttress - A surgical stapling device for joining tissue portions includes a handle assembly, and a tubular body portion having a staple cartridge assembly containing a plurality of surgical staples in an annular array. The surgical stapling device includes an anvil assembly having a shaft for removably connecting the anvil assembly to the tubular body portion. The anvil assembly and the tubular body portion are juxtaposed with respect to one another along the shaft and are arranged so as to be approximated with respect to one another. The surgical stapling device includes a buttress material supported by the tubular body portion and disposed between the anvil assembly and the staple cartridge assembly. The surgical stapling device includes a suture material that is adapted for engagement with the tubular body portion and the buttress material to secure the buttress material to the tubular body portion. | 08-01-2013 |
20130193191 | Buttress Support Design For EEA Anvil - An apparatus for joining two hollow organ sections with an annular array of surgical staples includes a staple cartridge, an anvil, a buttress member, and a buttress mount. In particular, the staple cartridge includes a plurality of surgical staples in an annular array. The anvil includes an anvil member and a shaft extending therefrom. The anvil member defines a plurality of staple pockets for deforming the surgical staples. The anvil is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp tissue between the staple cartridge and the anvil. The buttress member is concentrically aligned with the plurality of staple pockets defined in the anvil member. The buttress mount is detachably secured with the shaft of the anvil. The buttress mount includes at least one support member radially extending outward to secure the buttress member to the anvil member. | 08-01-2013 |
20130193192 | Surgical Device Including Buttress Material - The present disclosure provides a surgical stapling device and a method for joining tissue portions. The surgical stapling device includes a handle assembly and a tubular body portion supported on a distal end of the handle assembly having a staple cartridge assembly containing a plurality of surgical staples in an annular array. An anvil assembly is at a distal end of the stapling device and has a shaft for removably connecting the anvil assembly to the tubular body portion. The anvil assembly and tubular body portion are juxtaposed with respect to one another along the shaft and are arranged so as to be approximated with respect to one another. A support member extends from the tubular body portion towards the anvil assembly and a buttress material is supported by the support member and removably attached to the support member. | 08-01-2013 |
20130206816 | Circular Stapler with Increased Lumen Diameter - A surgical stapling device is provided having a shell assembly including an outer housing portion having areas of varying wall thicknesses. Individual staple pockets in a row of staple pockets are positioned in areas of thinner wall thicknesses. Areas of increased wall thicknesses form longitudinally extending strengthening ribs along an inner surface of the outer housing portion. The longitudinally extending strengthening ribs may be solid, indented in the wall of the outer housing portion and or bisected by a slot extending through the outer housing portion. | 08-15-2013 |
20130277412 | Surgical Stapling Device for Performing Circular Anastomoses - This application is directed to a surgical stapling device for performing circular anastomoses. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. A tactile indication mechanism is also provided for notifying a surgeon that the device has been fired and for notifying a surgeon that the anvil head has been unapproximated a distance sufficient to permit the anvil head to tilt. | 10-24-2013 |
20130306707 | ANNULAR ADHESIVE STRUCTURE - An apparatus for forming an anastomosis between adjacent intestinal sections of tissue is provided. The apparatus includes a circular surgical stapler having an anvil assembly with an anvil shaft and an anvil, the circular surgical stapler further having a tubular body portion with an annular knife and a body portion shaft selectively attachable to the anvil shaft; and a seal structure for deposition between the intestinal sections of tissue including a hub configured to engage attachment structure on at least one of the anvil shaft and the body portion shaft. The attachment structure is positioned so that the seal structure is located between the intestinal sections of tissue when the circular surgical stapler is disposed within the intestinal sections of tissue. | 11-21-2013 |
20140008413 | T-SLOT TILT ANVIL FOR CIRCULAR STAPLING INSTRUMENT - A surgical stapling device and method for joining tissue portions are provided including a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly supported on a distal end of the elongate body, and an anvil assembly at a distal end of the surgical stapling device. The anvil assembly includes a shaft for removably coupling the anvil assembly to the cartridge assembly and a head pivotally mounted to a distal end of the shaft. A sleeve member is slidably disposed about the shaft of the anvil assembly and is transitionable between a first position, where the sleeve member engages the head of the anvil assembly to secure the head in an un-tilted condition, and a second position, where the sleeve member is disengaged from the head of the anvil assembly to allow the head to tilt. | 01-09-2014 |
20140097226 | Surgical Instrument with Preload Assembly - A surgical instrument comprising a handle assembly, an elongated body portion extending distally from the handle assembly, a head portion and a preload assembly is disclosed. The head portion is disposed adjacent a distal end of the elongated body portion and includes an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The preload assembly is disposed in mechanical cooperation with the shell assembly and enables longitudinal movement of the shell assembly with respect to the elongated body portion. | 04-10-2014 |
20140151436 | Flexible Endoluminal Surgical Instrument - A surgical instrument comprises a first elongated member and a second elongated member, the first elongated member and the second elongated member being operatively connected and configured to rotate in opposite directions to substantially limit counter torque. The first and second elongated members are flexible shafts. The surgical instrument can be configured to apply fasteners to a tissue portion. This embodiment of the surgical instrument includes a cartridge having a plurality of fasteners, an anvil, said anvil and cartridge being relatively movable between spaced and approximated positions, and a sled disposed in the cartridge. The sled includes a cam member. The cam member is designed to drive the fasteners through tissue and toward the anvil. | 06-05-2014 |
20140158747 | SURGICAL STAPLER WITH VARYING STAPLE WIDTHS ALONG DIFFERENT CIRCUMFERENCES - An apparatus for stapling tissue includes a head assembly, a handle actuator in communication with the head assembly, and a staple cartridge. The head assembly is operable to drive a plurality of staples in response to actuating the handle actuator. The staple cartridge is in communication with the head assembly. The staple cartridge comprises a first annular ring of apertures and a second ring of apertures. The first annular ring of apertures includes apertures having a different size than the second annular ring of apertures, such that the apertures accommodate staples having different crown lengths. The staples may include pledgets that are configured to provide a greater staple footprint. | 06-12-2014 |
20140166727 | CIRCULAR STAPLER WITH SELECTABLE MOTORIZED AND MANUAL CONTROL - An apparatus is operable to clamp, cut, and staple tissue. The apparatus includes a stapling head assembly, a shaft assembly coupled to the stapling head assembly, and an actuator handle assembly coupled to the shaft assembly. The stapling head assembly is operable to clamp tissue, cut tissue, and staple tissue in response to rotation imparted by a single rotary drive shaft extending through the shaft assembly. The actuator handle assembly includes a motor positioned within a motor housing, a rotation knob, and a selection assembly. The rotation knob is coupled to a proximal end of the motor housing. The rotation knob is configured to translate between a proximal position and a distal position. The selection assembly is operable to select between motorized operation of the apparatus or manual operation of the apparatus, based on the longitudinal position of the rotation knob. | 06-19-2014 |
20140166728 | MOTOR DRIVEN ROTARY INPUT CIRCULAR STAPLER WITH MODULAR END EFFECTOR - A surgical stapling device comprises a handle assembly, a shaft assembly, and a stapling head assembly. The shaft assembly comprises a rotary drive shaft that translates between two longitudinal positions to alternate between a tissue clamping mode and a tissue cutting/stapling mode. The stapling head assembly includes a first set of rotary drive elements that convert rotary motion of the drive shaft into a tissue clamping action when the drive shaft is in a distal position. The stapling head assembly also includes a second set of rotary drive elements that convert rotary motion of the drive shaft into a tissue cutting/stapling action when the drive shaft is in a proximal position. The drive shaft may be driven manually or by a motor. The stapling head assembly may be provided in a cartridge form that is removable from the shaft assembly. | 06-19-2014 |
20140197224 | Buttress Retainer for EEA Anvil - An apparatus for joining two hollow organ sections with an annular array of staples includes a staple cartridge assembly, an anvil assembly, and a buttress assembly. The staple cartridge assembly includes a plurality of surgical staples in an annular array. The anvil assembly includes an anvil member and a shaft extending therefrom. The anvil member defines a plurality of staple pockets for deforming the staples. The anvil assembly is movable relative to the staple cartridge assembly between spaced apart and approximated positions to adjustably clamp tissue between the staple cartridge and the anvil assemblies. The buttress assembly includes a cut ring secured with the anvil member, a buttress member disposed in a superposed relation with the plurality of staple pockets defined in the anvil member, and a retaining member having an attaching member configured to be secured with the cut ring to secure the buttress member with the anvil assembly. | 07-17-2014 |
20140197225 | Circular Stapling Instrument - A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The knife assembly is selectively fixed relative to the pusher assembly. | 07-17-2014 |
20140217147 | Circular Stapling Device Including Buttress Material - An anvil assembly includes a circular anvil head that supports a crush ring, an anvil cap that supports an o-ring, and a circular anvil buttress member. The cap connects to the head and is movable relative to the head between approximated and unapproximated positions. The crush ring is spaced from the cap when the cap is in the approximated position and movable into engagement with the cap to move the cap to the unapproximated position. The buttress member includes a body portion and an extension portion. The body portion is supported on the head and the extension portion is secureable between the o-ring and the head when the cap is in the approximated position. The extension portion is releasable from between the o-ring and the head when the cap is disposed in the unapproximated position so that the body portion separates from the head. | 08-07-2014 |
20140217148 | Buttress Attachment for Circular Stapling Device - A circular stapling device includes a circular anvil assembly and a circular cartridge assembly. The anvil assembly includes a cap and head. The cap is movable relative to the head. The head supports a crush ring member that is movable into engagement with the cap to move the cap to an unapproximated position relative to the head to release a portion of an anvil buttress member supported between the anvil cap and the anvil head. The cartridge assembly includes a housing, a pusher member, a retaining ring member, and a fastener cartridge. The retaining ring member releasably secures a portion of a cartridge buttress member to one or both of the housing and the fastener cartridge. The retaining ring member releases the cartridge buttress member when the retaining ring member moves from a radially constricted condition to a radially expanded condition in response to a movement of the pusher member. | 08-07-2014 |
20140263563 | METHOD AND APPARATUS FOR SEALING END-TO-END ANASTOMOSIS - A cuff is used to provide a form for curing fluid about the exterior of an end-to-end anastomosis site. The cuff includes a port through which fluid may be injected to reach an interior space defined between the exterior of tissue at the anastomosis site and the inner surface of the cuff. A circular stapler may be used as a mandrel for the cuff and fluid. Alternatively, inflatable balloons may be used as a mandrel. The curing fluid may comprise a mixture of fibrin and thrombin. | 09-18-2014 |
20140284373 | TISSUE ACQUISITION ARRANGEMENTS AND METHODS FOR SURGICAL STAPLING DEVICES - A surgical instrument that includes an elongated shaft that defines defining a central axis. The elongated shaft may have a distal end portion that is configured to operably support a circular staple cartridge therein. A tissue acquisition shaft may be axially movable within the elongated shaft such that a distal end portion of the tissue acquisition shaft may be distally advanced beyond the distal end portion of the elongated shaft. At least one tissue acquisition member may be pivotally attached to the distal end portion of the tissue acquisition shaft such that at least one tissue acquisition member is selectively pivotable about a corresponding acquisition axis that is substantially parallel to the central axis from a retracted position to deployed positions upon application of a deployment motion thereto. Various embodiments include an annular cutting member that is supported by the distal end of the elongated shaft for selective axial travel relative thereto. | 09-25-2014 |
20140367449 | SURGICAL INSTRUMENT WITH CURVILINEAR TISSUE-CONTACTING SURFACES - A surgical stapling instrument including a handle assembly, an elongated body portion, a shell assembly and an anvil assembly. The elongated body portion extends distally from the handle assembly and defines a longitudinal axis. The shell assembly is disposed adjacent a distal end of the elongated body portion and includes a non-planar, tissue-contacting surface oriented obliquely with respect to the longitudinal axis. The anvil assembly includes a non-planar, tissue-contacting surface oriented obliquely with respect to the longitudinal axis. The tissue-contacting surface of the anvil assembly is configured to align with the tissue-contacting surface of the shell assembly when the anvil assembly and shell assembly are in the approximated position. | 12-18-2014 |
20150048141 | ENDOLUMINAL STAPLER WITH ROTATING WHEEL CAM FOR MULTI-STAPLE FIRING - A surgical stapler has a body, a shaft assembly extending distally from the body, and an end effector coupled with a distal end of the shaft assembly. The end effector has a stapling head assembly, an anvil, and a vacuum port. The vacuum port is operable to draw tissue between the stapling head assembly and the anvil. The anvil is operable to move toward and away from the stapling head assembly to thereby capture the tissue drawn between the stapling head assembly and the anvil. The stapling head assembly comprises a plurality of wheel assemblies and staple cartridges. At least one wheel assembly is operable to rotate to thereby move the anvil toward and away from the body. The remaining wheel assemblies are operable to rotate to thereby drive staples through the captured tissue. The body includes user input features operable to drive the wheel assemblies. | 02-19-2015 |
20150053747 | EEA ABDOMINAL ACCESS DEVICE - A surgical system is disclosed, and includes a surgical fastening apparatus and an access device. The access device defines an internal lumen configured to receive the surgical fastening apparatus. The access device also includes a proximal portion and a distal portion being more flexible than the proximal portion. The access device is reconfigurable between a first condition and a different, second condition in which the distal portion of the access device is configured to fold radially inwardly and proximally upon movement of the surgical fastening apparatus therewith. | 02-26-2015 |
20150060524 | SURGICAL INSTRUMENT WITH DOUBLE CARTRIDGE AND ANVIL ASSEMBLIES - An end effector for use with a surgical instrument having a first cartridge assembly configured to deploy a first set of fasteners and a second cartridge assembly disposed distally of the first cartridge assembly. The second cartridge assembly is configured to move between an open position and an approximated position relative to clamp tissue. A central rod extends between the first cartridge assembly and the second cartridge assembly. | 03-05-2015 |
20150115015 | CIRCULAR SURGICAL STAPLING DEVICE INCLUDING BUTTRESS MATERIAL - A buttress material and mounting structure assembly is provided for use with a circular surgical stapling device. The assembly comprises a ring-like mounting structure sized to have an outer diameter that frictionally engages a radial inner surface of a staple cartridge assembly, wherein the mounting structure is disposed within the radial inner surface of the staple cartridge assembly; an annular buttress material overlaying a tissue facing surface of the staple cartridge assembly, the annular buttress material defining an outer radial terminal edge extending radially beyond a pair of annular arrays of staple receiving slots, and a radial inner terminal edge extending across the mounting structure; and at least one suture securing the buttress material to the mounting structure. | 04-30-2015 |
20150122872 | SURGICAL STAPLING APPARATUS - A loading unit for use with a surgical stapling apparatus is provided and includes a tool assembly having a cartridge assembly and an anvil assembly that are movable in relation to one another; a surgical buttress releasably secured to a tissue contacting surface of the anvil assembly and/or the cartridge assembly, wherein each surgical buttress is secured to the anvil assembly and/or the cartridge assembly by at least one anchor; a release assembly associated with the anvil assembly and/or the cartridge assembly; and a drive assembly slidably translatable through the tool assembly between proximal and distal positions, wherein the drive assembly actuates the release assembly to thereby release the anchor to free the surgical buttress from the anvil assembly and/or the cartridge assembly. | 05-07-2015 |
20150289872 | CIRCULAR STAPLER AND STAPLE HEAD ASSEMBLY THEREOF - A circular stapler includes a staple body and an anvil assembly. The staple body includes an annular staple cartridge and an annular cutter located at a distal end thereof. The anvil assembly includes an annular anvil, an annular cutting pad and an anvil shaft. When the staple body and the anvil assembly are closed, the annular staple cartridge is associated with the annular anvil and the annular cutting pad to form at least two connected fixing spaces having height difference. The circular stapler facilitates fixing the severed staples for easily cutting. A buffer may be formed between the tissues near the new formed staples and the tissue near the severed staples in order to avoid or reduce lateral slipping, thereby reducing dragging the tissues on the end face of the anvil. | 10-15-2015 |
20150297220 | SURGICAL CUTTING AND STAPLING DEVICE - The present invention, in accordance with various embodiments thereof, relates to a surgical device for at least one of cutting and stapling a section of tissue. The surgical device includes a housing including at least two drivers. The surgical device also includes an anvil mechanically attachable to the housing and moveable relative to the housing between an open position and a closed position. The first driver operates to move the anvil relative to the housing to an intermediate position between the open position and the closed position. The second driver operates to move at least a portion of the housing relative to the anvil between the intermediate position and the closed position. | 10-22-2015 |
20150351769 | SURGICAL STAPLING APPARATUS WITH REUSABLE COMPONENTS - A surgical stapling apparatus includes a handle, an elongated body, a firing assembly, and a stapling assembly. The body extends from the handle and includes an engagement member rotatably supported on to a distal portion of the body. The engagement member defines an engagement slot and is axially movable about the body from a retracted position to an advanced position. The firing assembly includes a trigger, firing link, and pusher link. The pusher link is movably supported for distal translation through the body in response to actuation of the trigger. The stapling assembly houses a plurality of surgical staples and includes an outer shell having an engagement tab. The engagement member is rotatable relative to the body and the stapling assembly to releasably position the engagement tab within the engagement slot, thereby securing the stapling assembly at the distal end of the body. | 12-10-2015 |
20160045200 | CIRCULAR STAPLING DEVICE INCLUDING BUTTRESS MATERIAL - An anvil assembly includes a circular anvil head that supports a crush ring, an anvil cap that supports an o-ring, and a circular anvil buttress member. The cap connects to the head and is movable relative to the head between approximated and unapproximated positions. The crush ring is spaced from the cap when the cap is in the approximated position and movable into engagement with the cap to move the cap to the unapproximated position. The buttress member includes a body portion and an extension portion. The body portion is supported on the head and the extension portion is secureable between the o-ring and the head when the cap is in the approximated position. The extension portion is releasable from between the o-ring and the head when the cap is disposed in the unapproximated position so that the body portion separates from the head. | 02-18-2016 |
20160089146 | CIRCULAR FASTENER CARTRIDGES FOR APPLYING RADIALLY EXPANDABLE FASTENER LINES - A fastener cartridge assembly for use with a circular surgical fastening device. The fastener cartridge assembly includes a cartridge body that has a circular deck. A plurality of fastener cavities is provided in the circular deck. Each fastener cavity includes two cavity ends wherein one cavity end of each of the fastener cavities is positioned on a first circular axis having a first radius and wherein the other cavity end of each fastener cavity is positioned on a second circular axis that has a second radius that differs from the first radius. | 03-31-2016 |
20160174989 | Surgical Stapling Device for Performing Circular Anastomoses | 06-23-2016 |
20160374684 | FIRING ASSEMBLY FOR CIRCULAR STAPLER - A surgical instrument includes a body, a shaft assembly, a stapling head assembly, and a drive assembly. The shaft assembly includes an actuator. The stapling head assembly is operable to drive an annularly arranged array of staples into tissue in response to translation of the actuator along a first axis relative to the body. The drive assembly is operable to translate the actuator along the first axis. The drive assembly comprises first and second rotary members. The first rotary member is rotatable about a second axis. The second axis is non-parallel with the first axis. The second rotary member is rotatable about a third axis. The third axis is non-parallel with the first axis and non-parallel with the second axis. The first rotary member is operable to drive the second rotary member to rotate about the third axis to thereby drive the actuator along the first axis. | 12-29-2016 |
20170231636 | ANVIL ASSEMBLY WITH SLIDING SLEEVE | 08-17-2017 |
20190142427 | SURGICAL STAPLING APPARATUS WITH REUSABLE COMPONENTS | 05-16-2019 |