Covidien LP

Sabastian Koduthully George

Raja Kamaraj

Oksana Buyda

Syed Sarfraz Ahamed

Mohan T Chiruvolu

K V S Manoj Kumar Vadali

Jeevan Maddur Shankar Setty

Anant Tiwari

Garrett P Ebersole

Hari Naga Mahesh Kalepu

Sridharan Varadhan

Hari Naga Kalepu

Logamurugaraj Shanmugavel

Dharani Gandhi

An end effector for a surgical stapling apparatus includes a cartridge assembly and an anvil assembly. The cartridge assembly includes a cartridge channel supporting a reload. The cartridge assembly can include a cartridge channel that supports the reload. The cartridge assembly can include a hinge assembly that pivotally couples to the cartridge channel.

Long stapler reloads with continuous cartridge

A surgical access device includes a cannula assembly, a locking collar, a fixation sleeve assembly, and a tip portion. The cannula assembly includes a housing and a tubular member extending from the housing. The locking collar slidably is received on the tubular member. The fixation sleeve assembly is disposed about the tubular member. The fixation sleeve assembly includes a securing member configured to detachably engage the locking collar, and a sleeve extending distally from the securing member. The tip portion detachably is coupled to a distal portion of the tubular member to retain the fixation sleeve assembly on the tubular member. The fixation sleeve assembly is transitionable between a first configuration, in which, the sleeve has a tubular profile, and a second configuration, in which, the sleeve flexes radially outwards to define a fixation anchor configured to secure the surgical access device relative to an opening in tissue.

Surgical access device with detachable fixation assembly

A tool assembly includes an anvil and a cartridge assembly movable from an open position to a closed position, and a locking member movably supported on a distal portion of the cartridge assembly. The locking member is configured to move into a slot of the anvil as the anvil and cartridge assembly move toward the closed position to set a gap distance between the anvil and cartridge assembly.

Tool assemblies with a gap locking member

A surgical access assembly includes an elongated cannula member having a proximal end portion and a distal end portion, a balloon anchor coupled to the distal end portion of the elongated cannula member, a sleeve of the balloon anchor extending proximally along an outer surface of the elongated cannula member, a chamber defined between the sleeve of the balloon anchor and the outer surface of the elongated cannula member, and a first collar is coupled to the elongated cannula member. The first collar is slidable along the elongated cannula member and engageable with the sleeve of the balloon anchor.

Surgical access assembly having pre-filled air chamber

Access assemblies include an instrument valve housing and a valve assembly disposed within the instrument valve housing. The valve assembly includes a guard assembly, and a seal assembly disposed adjacent the guard assembly. The seal assembly includes a plurality of seal segments defining a substantially hexagonal body. Each seal segment of the plurality of seal segments includes a base portion and a seal portion extending from the base portion. Each base portion including an outer edge formed of three segments. Each seal segment of the plurality of seal segments is disposed relative to an adjacent seal segment of the plurality of seal segments such that two of the three segments of the outer edge of the respective seal segments align with each other. The valve assembly also includes a centering mechanism for biasing the seal assembly and guard assembly towards a center of the cavity of the instrument valve.

Seal assemblies for surgical access assemblies

An end effector for a surgical stapling apparatus includes a cartridge assembly and an anvil assembly. The cartridge assembly includes a cartridge channel supporting a reload. The reload includes a plurality of separate and distinct cartridge units that removably interconnect with one another within the cartridge channel. The cartridge assembly can include a cartridge channel that supports the reload and a hinge assembly that pivotally couples to the cartridge channel.

A surgical loading unit includes an anvil assembly, a staple cartridge assembly pivotably coupled to the anvil assembly, and a knife configured to approximate the staple cartridge assembly and the anvil assembly. The staple cartridge assembly has a staple cartridge chassis having a support protruding outwardly from a proximal end thereof. The knife includes an upper plate coupled to the staple cartridge chassis and a lower plate coupled to the anvil assembly. The support of the staple cartridge chassis has an upper surface that is coplanar with or above an upper surface of the upper plate when the knife is in a proximal position for preventing the knife from catching on a surgical port during use.

Surgical system and surgical loading units thereof

A cartridge assembly for a surgical stapling device includes a staple cartridge that includes a staple array that has a configuration to minimize blood leakage through a staple line formed by the staple cartridge.

Surgical stapler tool assembly to minimize bleeding

An end effector of a surgical stapling apparatus includes an anvil assembly and a cartridge assembly. The anvil assembly has an anvil body that supports an anvil buttress. The anvil buttress includes a distal alignment band that extends distally beyond the anvil body. The cartridge assembly has a cartridge body that supports a cartridge buttress. The cartridge buttress includes a distal alignment band that extends distally beyond the cartridge body.

Stapler line reinforcement continuity

A trigger mechanism for a surgical instrument, particularly, a surgical stapling instrument provides significant mechanical advantages by increasing the length of the firing stroke of the surgical instrument while reducing the degree of movement of the trigger associated with the trigger mechanism. The trigger mechanism also reduces the forces required to actuate the trigger thereby enhancing usability and minimizing operator fatigue.

Surgical stapling instrument and associated trigger mechanisms

The disclosure is directed to a specimen retrieval bag or a kit including a specimen retrieval bag for use in removing tissue from the body of a patient, in aspects, as part of a minimally invasive surgical procedure. The specimen retrieval bag includes a buttress material affixed to at least a portion of an opening of the specimen retrieval bag.

Specimen retrieval bag

A surgical access device includes an elongate tubular member with a proximal region and a distal region. A passage extends through the elongate tubular member. The surgical access device also includes a balloon anchor with an expandable portion. A first portion of the balloon anchor extends proximally along the outer surface of the tubular member. The surgical access device also has a valve assembly disposed in the proximal region of the elongate tubular member that is fluidly coupled to the balloon anchor. A disc is slidably disposed on the elongate tubular member and includes a first blade with a first sharpened edge that is configured to penetrate the first portion of the balloon anchor. The first blade is transitionable between a retracted position and an extended position.

Surgical access device with air release mechanism

A stop member for use with a surgical stapling device includes a plurality of sections that are releasably coupled to each other. Each of the sections includes a coupling member that can be selectively coupled to a tool assembly of the surgical stapling device to limit an actuation stroke of a drive assembly of the stapling device. Sections of the stop member can be removed from the stop member to change the position of a stop surface of the stop member on the tool assembly to change the effective stroke length of the clamp member.

Stapling device with drive assembly stop member

A tool assembly for use with a surgical stapling device includes structure on an anvil assembly and/or a cartridge assembly to obstruct blood from flowing through spaces in a staple line as the staple line is being formed by the stapling device. In aspects of the disclosure, the tool assembly includes protrusions to compress tissue adjacent to spaces in the staple line as the staple line is being formed and tissue is being cut.

Growing community of inventors

Hyderabad Telangana, India

Sabastian Koduthully George