525 results about "Surgical Staplers" patented technology

A surgical stapler can comprise an anvil comprising a staple pocket formed in a tissue contacting surface. The staple pocket can comprise a midline or centerline, a first forming cup, and a second forming cup. The first forming cup can comprise a first interior sidewall comprising a first vertical portion which is substantially perpendicular to the tissue contacting surface. The second forming cup can comprise a second interior sidewall comprising a second vertical portion which is substantially perpendicular to the tissue contacting surface. The first vertical portion and the second vertical portion can extend through the centerline, wherein the first interior sidewall and the second interior sidewall can comprise a trap for deforming a first staple leg of a staple to a first side of the centerline and for deforming a second staple leg of the staple to a second side of the centerline.

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.

A surgical stapler which includes or onto which a tool assembly can be mounted for deforming a plurality of surgical fasteners through and fastening tissue includes a housing having a fixed handle and a clamping handle mountable to the housing. The clamping handle is selectively movable relative to the fixed handle from a first position in spaced relation relative to the fixed handle to a second position closer to the fixed handle to actuate the clamping of tissue. An adapter yoke is included which translates within the housing upon actuation of the clamping handle. The adapter yoke mechanically cooperates with a lead screw to actuate the tool assembly to clamp tissue. A drive assembly is also included for rotating a shaft which mechanically engages the lead screw. Upon selective activation of the drive assembly, the shaft rotates the lead screw to advance a roll nut and force a firing piston into the tool assembly to deform the surgical fasteners through and fasten the tissue.

A surgical stapling instrument including a latch for securing first and second jaw members together, a cutting member which can be advanced and / or retracted relative to first and second jaw members, and, in addition, a lock which can prevent, or at least inhibit, the cutting member from being moved, or at least advanced, relative to the first and second jaw members before the latch has been closed. In at least one embodiment, the latch can be configured to engage the lock as the latch is moved from a fully open position to a fully closed position and operably disengage the lock from the cutting member.

A surgical stapler can comprise an anvil comprising a staple pocket formed in a tissue contacting surface. The staple pocket can comprise a longitudinal axis, a first forming cup, and a second forming cup. The first forming cup can comprise a first interior sidewall comprising a first vertical portion which is substantially perpendicular to the tissue contacting surface. The second forming cup can comprise a second interior sidewall comprising a second vertical portion which is substantially perpendicular to the tissue contacting surface. The first vertical portion and the second vertical portion can extend through the longitudinal axis, wherein the first interior sidewall and the second interior sidewall can comprise a trap for deforming a first staple leg of a staple to a first side of the longitudinal axis and for deforming a second staple leg of the staple to a second side of the longitudinal axis.

The present invention includes a surgical stapler having a staple cartridge, an anvil, and a cutting member having a cutting surface, wherein the cutting member is relatively movable with respect to the anvil and the staple cartridge. In at least one embodiment, the anvil is movable between an open position and a partially-closed position. When the anvil is in its partially-closed position, the anvil and the staple cartridge can be configured to capture tissue therebetween without fully compressing the tissue. In at least one embodiment, the anvil includes a proximal portion, a distal portion, and a middle portion intermediate the proximal portion and the distal portion. In these embodiments, the tissue can be captured between the proximal and distal portions of the anvil before the middle portion of the anvil is brought into contact with the tissue.

A surgical stapler can comprise an anvil comprising a staple pocket formed in a tissue contacting surface. The staple pocket can comprise a midline or centerline, a first forming cup, and a second forming cup. The first forming cup can comprise a first interior sidewall comprising a first vertical portion which is substantially perpendicular to the tissue contacting surface. The second forming cup can comprise a second interior sidewall comprising a second vertical portion which is substantially perpendicular to the tissue contacting surface. The first vertical portion and the second vertical portion can extend through the centerline, wherein the first interior sidewall and the second interior sidewall can comprise a trap for deforming a first staple leg of a staple to a first side of the centerline and for deforming a second staple leg of the staple to a second side of the centerline.

A buttress for use with circular surgical staplers that does not require adhesive to securely fasten the buttress to the stapler. Following cutting and stapling by the circular stapler, the buttress has an adaptive opening through its central region with a diameter smaller than the outer diameter of the stapler anvil. Because of relief features built into the buttress, the stapler anvil may be pulled through the buttress material without causing permanent alteration to the buttress. These relief features may be provided regardless of whether the buttress is made of inelastic or elastic materials. The buttress is generally circular in shape with an outer diameter sized to coincide with the outer diameter of the stapler body staple compression surface and the outer diameter of the anvil compression surface of a circular stapler with which it is used. Prior to surgical use, the buttress is attached to the stapler with disruptable portions extending from outer perimetal areas of the buttress.

Palm-size staplers for surgical procedures are proposed. The staplers include cartridge and slider assemblies with the cartridge assembly containing staples. As the slider assembly advances step-wise incrementally it provides a staple ejection force causing ejection of staples. Optionally, a blade element may be included for cutting. An anvil member is operable in closed and open positions with respect to the cartridge assembly. When in a closed position, the anvil member holds a portion of tissue against the cartridge assembly, ejected staples passing through the held tissue. Actuation of the staplers is effected by a lever member. A locking mechanism, when in its locked position, holds the anvil member adjacent to the cartridge assembly allowing closure of the staple to occur. The devices are intended for one hand use.

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.

Palm-size staplers for surgical procedures are proposed. The staplers include cartridge and slider assemblies with the cartridge assembly containing staples. As the slider assembly advances step-wise incrementally it provides a staple ejection force causing ejection of staples. Optionally a blade element may be included for cutting. An anvil member is operable in closed and open positions with respect to the cartridge assembly. When in a closed position, the anvil member holds a portion of tissue against the cartridge assembly, ejected staples passing through the held tissue. Actuation of the staplers is effected by a lever member. The staplers have a selector element which is used to select an operational mode of the stapler. A locking linking mechanism, when in its locked position, holds the anvil member adjacent to the cartridge assembly allowing closure of the staple to occur. The devices are intended for one hand use.

A surgical stapling instrument including first and second jaw members which can be pivotably connected to each other and secured in position relative to each other by a latch. The first and second jaw members can include first and second locking members which can allow the first and second jaw members to be rotated relative to one another but prevent, or at least inhibit, the first and second jaw members from being separated from one another. Such embodiments may be particularly useful in circumstances when the latch is in a partially-closed position and the first and second jaw members are being manipulated to position tissue therebetween. The first and second jaw members can be sufficiently connected together in order to prevent, or at least reduce the possibility of, the first and second jaw members from becoming detached from one another and exposing a cutting member.

A surgical instrument including a shaft and an end effector. The end effector may comprise a first jaw and a second jaw. The first jaw may be movable relative to the second jaw between an open configuration and a closed configuration. The surgical instrument may comprise a closure assembly which may be operably engaged with the first jaw. The closure assembly may comprise a closure trigger and a dampening system. The closure trigger may be configured to be actuated from a first position to a second position to close the first jaw. The dampening system may be configured to retard the opening of the closure trigger. The dampening system may comprise an aperture configured to receive the projection at a first end of the aperture and a seal configured to form a fluid seal between said projection and said aperture sidewall.

A strip for use with a surgical stapler facilitates sealing tissue of a patient, such as the lungs, stomach, etc. The strip includes retaining elements near opposed ends of the strip for connecting to associated parts of a surgical stapler device. An aperture also extends through the strip at a location intermediate its opposed ends for receiving an alignment feature of the surgical stapler.In another aspect, a second elongated strip having retaining elements near opposed ends thereof may be utilized in conjunction with the strip and a surgical stapler to seal the patient's tissue. In addition, the strips may be connected together by a bridge of material to facilitate selection and use of appropriate strips.

A surgical tool system includes a surgical tool for cutting and stapling tissue and a tactile feedback system integrated onto a handle of the tool that generates relevant feedback in at least the form of haptic effects to the user. The tactile feedback alerts the user of tissue properties, i.e., the type of tissue or other structures located within the jaws of the stapler, whether the quantity or thickness of tissue located within the jaws of the stapler is appropriate for the selected stapler cartridge, whether the proper length of staples has been fired based on the length of tissue located in the jaws, whether a blood vessel is located within the jaws of the stapler, whether the stapling process has successfully sealed the tissue located within the jaws of the stapler, the position of the cutting element, and / or when the stapling procedure or firing cycle is completed.

An apparatus for use with a surgical stapler to provide a reinforced surgical staple line. The apparatus includes an applicator that carries a first and second bioimplantable material connected by a hinge. An applicator clip may be provided to releasably secure the first and second bioimplantable material onto the applicator.