Granted Patent
B2
US 12,383,260 · App. 16/713,345 · Granted Aug 12, 2025
Surgical stapler with universal tip reload
Inventors:
Pawel Abramek (Berlin, CT); Kenneth M. Cappola (Monroe, CT); Matthew J. Chowaniec (Madison, CT); Zalika Walcott (Hamden, CT)
Assignee:
Covidien LP
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Abstract
A surgical stapler includes a tool assembly that has a cartridge assembly, an anvil assembly, and a dissector tip. The dissector tip is moveable between a first configuration aligned with a longitudinal axis of the tool assembly and a second configuration defining an acute angle with the longitudinal axis of the tool assembly.
Claims (17)
1. A surgical stapler comprising:
an elongate body having a proximal portion and a distal portion; and
a tool assembly defining a longitudinal axis and including:
a cartridge assembly;
an anvil assembly including a proximal portion and a distal portion, the distal portion of the anvil assembly having a support bracket, the anvil assembly coupled to the cartridge assembly such that the tool assembly is moveable from an open position to a clamped position; and
a dissector tip including a body having a proximal end and a distal end, the body having a thickness that decreases towards the distal end, the body being movably coupled to the anvil assembly for movement between a first configuration substantially aligned with the longitudinal axis and a second configuration defining an acute angle with the longitudinal axis, wherein the dissector tip includes a tip beam and a tip beam cover, the tip beam including a proximal portion and a deformable distal beam portion, the proximal portion of the tip beam fixedly secured to the support bracket, the tip beam cover received about the tip beam and the support bracket and having an atraumatic configuration, the deformable distal beam portion being formed of a material that is manually bendable by a clinician to any desired configuration including and between the first and second configurations, the material having properties to retain the deformable distal beam portion in the desired configuration absent an external force applied to the dissector tip.
2. The surgical stapler of claim 1 , wherein the proximal portion of the tip beam is secured to the support bracket of the anvil assembly by welding.
3. The surgical stapler of claim 1 , wherein the tip beam cover is formed of a biocompatible material selected from the group consisting of polymeric materials, metals, ceramics, and elastomeric materials.
4. The surgical stapler of claim 1 , wherein the dissector tip has a width that decreases towards the distal end of the dissector tip.
5. A tool assembly comprising:
a cartridge assembly;
an anvil assembly including a proximal portion and a distal portion, the distal portion of the anvil assembly having a support bracket, the anvil assembly coupled to the cartridge assembly such that the tool assembly is moveable from an open position to a clamped position, the tool assembly defining a longitudinal axis; and
a dissector tip including a body having a proximal end and a distal end, the body having a thickness that decreases towards the distal end, the body being movably coupled to the anvil assembly for movement between a first configuration substantially aligned with the longitudinal axis and a second configuration defining an acute angle with the longitudinal axis, wherein the dissector tip includes a tip beam and a tip beam cover, the tip beam including a proximal portion and a deformable distal beam portion, the proximal portion of the tip beam fixedly secured to the support bracket, the tip beam cover received about the tip beam and the support bracket and having an atraumatic configuration, the deformable distal beam portion being formed of a material that is manually bendable by a clinician to any desired configuration including and between the first and second configurations, the material having properties to retain the tip beam portion in the desired configuration absent an external force applied to the dissector tip.
6. A tool assembly comprising:
a cartridge assembly;
an anvil assembly including a proximal portion and a distal portion, the anvil assembly including a base portion and an anvil portion, the base portion coupled to the cartridge assembly such that the tool assembly is moveable from an open position to a clamped position, the anvil portion secured to the base portion and including a plurality of staple deforming pockets, the anvil portion including a distal portion including a support bracket, the tool assembly defining a longitudinal axis; and
a dissector tip including a body having a tapered distal surface and a thickness that decreases in the distal direction, the body being movably coupled to the anvil assembly for movement between a first configuration substantially aligned with the longitudinal axis and a second configuration defining an acute angle with the longitudinal axis, the dissector tip including a tip beam and a tip beam cover, the tip beam having a proximal portion and a deformable distal beam portion, the proximal portion of the tip beam fixedly secured to the support bracket, the tip beam cover received about the tip beam and the support bracket and having an atraumatic configuration, the proximal portion of the dissector tip secured to the bracket and the deformable distal beam portion formed of a material that is manually bendable by a clinician to any desired configuration including and between the first and second configurations, the material having properties to retain the distal beam portion in the desired configuration absent an external force applied to the dissector tip.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Dec 13, 2019
From: ABRAMEK, PAWEL; CAPPOLA, KENNETH M.; CHOWANIEC, MATTHEW J.; WALCOTT, ZALIKA
To: COVIDIEN LP
Reel/Frame 051274/0664 →
Continuity (1)
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