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US 10,646,219 B2Granted
Surgical stapling device with independent tip rotation
AssigneeCovidien LP
InventorsDavid C. Racenet, Ralph A. Stearns, Philip C. Roy, John W. Beardsley, Lee Ann Olson
Life of this patent
Estimating the term…
Abstract
A surgical stapling device is disclosed which includes a handle assembly, an endoscopic body portion and a tool assembly. The tool assembly is rotatably and pivotally supported on a distal end of the endoscopic body portion. A tool assembly rotation mechanism is provided which includes a rotation knob, a substantially rigid tube and a flexible member interconnecting the rigid tube to the tool assembly. The substantially rigid tube translates rotation of the rotation knob to rotation of the flexible member and provides a channel for passage of other components of the surgical stapling device.
Claims18
A surgical instrument comprising:
- an elongate portion defining a longitudinal axis and supporting a first rotation knob and a second rotation knob, the elongate portion being rotatable about the longitudinal axis upon manipulation of the first rotation knob, the elongate portion having an inner tube and an outer tube, the inner tube having a proximal portion and a distal portion;
- and
- a tool assembly having an anvil assembly, a cartridge assembly, a torque transmitting member, and a dynamic clamping member, the tool assembly being disposed at an end of the elongate portion for independent rotation with respect to the elongate portion and for pivotal movement with respect to the elongate portion;
- the second rotation knob having teeth enmeshed with a gear, the gear being attached to the proximal portion of the inner tube of the elongate portion, the torque transmitting member of the tool assembly being attached to the distal portion of the inner tube so that rotation of the second rotation knob rotates the inner tube within the outer tube to effect rotation of the tool assembly in relation to the outer tube.
1 more element
A surgical instrument comprising:
- an elongate portion defining a longitudinal axis and supporting a first rotation knob and a second rotation knob, the elongate portion being rotatable about the longitudinal axis upon manipulation of the first rotation knob, the elongate portion having an inner tube and an outer tube, the inner tube having a proximal portion and a distal portion;
- and
- a tool assembly having an anvil assembly, a cartridge assembly, a torque transmitting member, and a dynamic clamping member, the tool assembly being disposed at an end of the elongate portion for independent rotation with respect to the elongate portion and for pivotal movement with respect to the elongate portion;
- the second rotation knob having teeth enmeshed with a gear, the gear being attached to the proximal portion of the inner tube of the elongate portion, the torque transmitting member of the tool assembly being attached to the distal portion of the inner tube so that rotation of the second rotation knob rotates the inner tube within the outer tube to effect rotation of the tool assembly in relation to the outer tube;
- wherein the dynamic clamping member includes an upper flange portion and a lower flange portion, the upper flange portion being positioned to engage the anvil assembly.
2 more elements
A surgical instrument comprising:
- an elongate portion defining a longitudinal axis and supporting a first rotation knob and a second rotation knob, the elongate portion being rotatable about the longitudinal axis upon manipulation of the first rotation knob, the elongate portion having an inner tube and an outer tube, the inner tube having a proximal portion and a distal portion;
- a tool assembly having an anvil assembly, a cartridge assembly, a torque transmitting member, and a dynamic clamping member, the tool assembly being disposed at an end of the elongate portion for independent rotation with respect to the elongate portion and for pivotal movement with respect to the elongate portion;
- the second rotation knob having teeth enmeshed with a gear, the gear being attached to the proximal portion of the inner tube of the elongate portion, the torque transmitting member of the tool assembly being attached to the distal portion of the inner tube so that rotation of the second rotation knob rotates the inner tube within the outer tube to effect rotation of the tool assembly in relation to the outer tube;
- and
- a firing cable and a retraction cable coupled to the dynamic clamping member;
- wherein the dynamic clamping member is movable through the tool assembly and engages the cartridge assembly and the anvil assembly to limit outward deflection of the anvil and the cartridge assemblies.
3 more elements
A surgical instrument comprising:
- an elongate portion defining a longitudinal axis and supporting a first rotation knob and a second rotation knob, the elongate portion being rotatable about the longitudinal axis upon manipulation of the first rotation knob, the elongate portion having an inner tube and an outer tube, the inner tube having a proximal portion and a distal portion;
- and
- a tool assembly having an anvil assembly, a cartridge assembly, and a torque transmitting member, the tool assembly being disposed at an end of the elongate portion for independent rotation with respect to the elongate portion and for pivotal movement with respect to the elongate portion;
- the second rotation knob having teeth enmeshed with a gear, the gear being attached to the proximal portion of the inner tube of the elongate portion, the torque transmitting member of the tool assembly being attached to the distal portion of the inner tube so that rotation of the second rotation knob rotates the inner tube within the outer tube to effect rotation of the tool assembly in relation to the outer tube.
1 more element
Dependencies are inferred from the claim text.