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US 11,109,862 B2Granted
Surgical stapling device with flexible shaft
AssigneeCovidien LP
InventorJustin Williams
Life of this patent
Estimating the term…
Abstract
A surgical stapling device includes a housing assembly that is coupled to a tool assembly by a flexible elongate body that having an outer tube, a middle tube, and an inner cable. Each of the outer tube and the inner cable has a proximal end portion fixedly connected to the housing assembly and a distal end portion that is fixedly connected to the tool assembly. The middle tube is positioned within the outer tube about the inner cable and is movable from a retracted position to an advanced position to operate the tool assembly.
Claims20
A surgical stapling device comprising:
- a housing assembly including a body defining a cavity, and a drive mechanism positioned within the cavity;
- an elongate body including an outer tube, a middle tube extending through the outer tube, and an inner cable extending through the middle tube, the outer tube, middle tube, and inner cable being formed of flexible materials;
- and
- a tool assembly including an anvil assembly, a cartridge assembly, and a clamp member, the cartridge assembly movable in relation to the anvil assembly between open and clamped positions and including a cartridge body and a plurality of staples, the cartridge body defining a plurality of staple receiving slots, each of the staple receiving slots receiving one of the plurality of staples, the clamp member movable within the tool assembly from a retracted position to an advanced position to eject the plurality of staples from the cartridge body;
- the inner cable including a proximal end portion fixedly coupled to the body of the housing assembly and a distal end portion fixedly coupled to the tool assembly, the middle tube including a proximal end portion coupled to the drive mechanism and a distal end portion coupled to the clamp member, and the outer tube having a proximal end portion coupled to the body of the housing assembly and a distal end portion coupled to the tool assembly;
- wherein the drive mechanism is actuable to advance the middle tube within the outer tube along the inner cable to advance the clamp member between its retracted and advanced positions.
3 more elements
A surgical stapling device comprising:
- a housing assembly including a body defining a cavity, and a drive mechanism positioned within the cavity;
- an elongate body including an outer tube, a middle tube extending through the outer tube, and an inner cable extending through the middle tube, the outer tube, middle tube, and inner cable formed from flexible materials;
- and
- a tool assembly supported on the elongate body including an operating member;
- the inner cable including a proximal end portion fixedly coupled to the body of the housing assembly and a distal end portion fixedly coupled to the tool assembly, the middle tube including a proximal end portion coupled to the drive mechanism and a distal end portion coupled to the operating member, and the outer tube having a proximal end portion coupled to the body of the housing assembly and a distal end portion coupled to the tool assembly;
- and
- an inner cable tensioning mechanism including a shaft and a turnabout supported on the shaft within the cavity of the body of the housing assembly, the inner cable wrapped about the turnabout;
- wherein the drive mechanism is actuable to advance the middle tube within the outer tube along the inner cable to advance the operating member between its retracted and advanced positions.
5 more elements
A surgical stapling device comprising:
- a housing supporting a drive mechanism;
- an elongate body including an outer tube, a middle tube extending through the outer tube, and an inner cable extending through the middle tube, the outer tube, middle tube, and inner cable being formed of a flexible materials;
- and
- a tool assembly including an anvil assembly, a cartridge assembly, and a clamp member, the cartridge assembly movable in relation to the anvil assembly between open and clamped positions and including a cartridge body and a plurality of staples, the cartridge body defining a plurality of staple receiving slots, each of the staple receiving slots receiving one of the plurality of staples, the clamp member movable within the tool assembly from a retracted position to an advanced position to eject the plurality of staples from the cartridge body;
- the inner cable including a proximal end portion fixedly coupled to the body of the housing assembly and a distal end portion fixedly coupled to the tool assembly, the middle tube including a proximal end portion coupled to the drive mechanism and a distal end portion coupled to the clamp member, and the outer tube having a proximal end portion coupled to the body of the housing assembly and a distal end portion coupled to the tool assembly;
- wherein the drive mechanism is actuable to advance the middle tube within the outer tube along the inner cable to advance the clamp member between its retracted and advanced positions.
3 more elements
Dependencies are inferred from the claim text.