1032 results about "Buttress" patented technology

A surgical instrument for being endoscopically or laparoscopically inserted to a surgical site for simultaneous stapling and severing of tissue includes electrically actuated deployment of buttress pads held on inner surfaces of upper and lower jaws of a staple applying assembly. Thereby, thick or thin layers may be stapled and severed without improper staple formation nor with nonoptimal deployment of the buttress pads. Electroactive polymer (EAP) actuated latches, an EAP channel, or a rigid channel with an EAP pinch lock reliably hold the buttress pad until deployment is desired with a low force to separate the stapled and severed buttress pad / tissue combination with the respective EAP mechanism activated for deployment.

A combination medical device comprising a circular stapler instrument and one or more portions of preformed buttress material adapted to be stably positioned upon the staple cartridge and / or anvil components of the stapler prior or at the time of use. Positioned buttress material(s) are delivered to a tissue site where the circular stapler is actuated to connect previously severed tissue portions. The buttress material is retained and provides an improved seal between the joined tissue sections. The buttress material is made up of two regions, one of which serves primarily to secure the buttress material to the stapler prior to actuation, and one of which serves primarily to form the improved seal. The former region is severed and discarded upon activation of the circular stapler to form an anastomoses. Methods of use and preparation of the buttress material are also described.

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.

A surgical buttress for use with a surgical stapling apparatus having a first jaw in the form of an anvil assembly and a second jaw configured to selectively receive a staple cartridge assembly. The surgical buttress includes a first body portion and a second body portion. The first body portion substantially overlies a portion of a plurality of fastener slots of the staple cartridge assembly. The staple cartridge assembly is removably operably couplable to the second jaw of the surgical stapling apparatus. The second body portion extends from the first body portion and is configured and dimensioned to be removably positioned to substantially overlie a portion of a plurality of fastener pockets of the anvil assembly of the surgical stapling apparatus when the staple cartridge assembly is operably coupled to the second jaw of the surgical stapling apparatus.

A material comprising a matrix or a buttress is impregnated with an adhesive initiator and is used with a surgical stapling device and an adhesive. The tissue and material are stapled together, and a knife in the surgical stapling device cuts the tissue and the material. The adhesive is applied across the cut and sets up or polymerizes to seals the cut when the adhesive contacts the adhesive initiator. The surgical stapling device can place the staples in a linear, arcuate, or circular array, and can anastomose luminal tissue. The methods of use can include stapling luminal tissue end to end, stapling two portions of material onto ether side of tissue, and stapling two portions of tissue onto a portion of material. Additionally, a portion of adhesive filed material can be stapled onto one side of portion of tissue and the adhesive initiator impregnated material can be stapled onto the other. Cutting the material and tissue provides a path for the adhesive across the cut, and catalyzes the adhesive from contact with the adhesive initiator.

An end effector for use with a surgical stapler. The end effector comprising a staple cartridge having a tissue contacting surface having at least one recessed groove defined therein and an anvil plate having a tissue contacting surface having at least one recessed groove defined therein. A surgical buttress releasably disposed on the tissue contacting surfaces of each of the staple cartridge and the anvil plate. At least one suture is disposed within the at least one recessed groove of each of the staple cartridge and anvil plate and configured to retain the respective surgical buttress atop the respective tissue contacting surface.

An end effector for use with a surgical stapler comprising a staple cartridge having a tissue contacting surface, a first side surface, and a second side surface opposite the first side surface, an anvil plate having a tissue contacting surface, a first side surface, and a second side surface opposite the first side surface, wherein the first and second side surfaces of each of the staple cartridge and anvil plate have overmolded zones, a buttress releasably disposed on the tissue contacting surfaces of each of the staple cartridge and the anvil plate, and a pair of sutures wherein each suture is bonded to the respective overmolded zones of the first and second side surfaces configured to retain the respective buttress atop the respective tissue contacting surfaces.

A surgical stapling apparatus includes a housing, an end effector, fasteners, and one or more surgical buttresses. The end effector is secured to the housing and has first and second jaw assemblies. The first jaw assembly defines slots and the second jaw assembly defines pockets. One or both of the first and second jaw assemblies define recesses. The fasteners are disposed in the slots of the first jaw assembly and are formed by the pockets of the second jaw assembly. The one or more surgical buttresses have a body that includes plugs that are integrally formed with the body for insertion into the recesses to secure the surgical buttress(es) to one or both of the first and second jaw assemblies. The body substantially overlies at least some of the slots of the first jaw assembly and / or at least some of the pockets of the second jaw assembly.

A surgical stapling apparatus includes a housing and an end effector secured to the housing. The housing supports a knife assembly including a knife. The end effector has first and second jaw members. One or both of the first and second jaw members define a knife channel. The first jaw member defines fastener slots and the second jaw member defines fastener pockets. One or more of the knife channel, the fastener slots, and the fastener pockets includes lateral recesses. Fasteners are disposed in the fastener slots and formed by the fastener pockets. One or more surgical buttresses have a body that overlies one or both of the fastener slots and the fastener pockets. Portions of the body of the one or more surgical buttresses are disposed within the lateral recesses to secure the one or more surgical buttresses to one or both of the first jaw member and the second jaw member.

Articles are provided having no orientation or a multi-directional orientation. Such articles may be in the form of films, ribbons, sheets, and / or tapes and may be utilized as buttresses with a surgical stapling apparatus or as reinforcing means for suture lines. The articles may be produced with etchings on at least a part of a surface of the article.

A method of treating obstructive sleep apnea includes providing an elongated element having a central buttress area and first and second arms extending from opposite ends of the central buttress area. The method includes implanting the central buttress area in a tongue so that a longitudinal axis of the central buttress area intersects an anterior-posterior axis of the tongue. The first and second arms are advanced through the tongue until the first and second arms engage inframandibular musculature. Tension is applied to the first and second arms for pulling the central buttress area toward the inframandibular musculature for moving a posterior surface of the tongue away from an opposing surface of a pharyngeal wall. The first and second arms are anchored to the inframandibular musculature for maintaining a space between the posterior surface of the tongue and the opposing surface of the pharyngeal wall.