Surgical stapling apparatus with interlockable firing system
First Claim
1. A surgical stapling apparatus, comprising:
- a handle assembly including a movable handle and a stationary handle housing, the movable handle being movable through actuation strokes relative to said stationary handle housing;
an actuation shaft supported at least in part within said stationary handle housing and mounted for longitudinal movement in response to manipulation of said movable handle through said actuation strokes;
a control rod assembly having a proximal end interfacing with said actuation shaft, said control rod assembly protruding distally from said handle housing and having a distal end configured to be operably attached to a disposable loading unit;
a firing lock out assembly supported at least in part within said stationary handle housing and configured to selectively prevent longitudinal movement of said actuation shaft in a distal direction; and
a firing release trigger supported on said movable handle for travel therewith and interfacing with said firing lockout assembly to selectively release said firing lockout assembly to permit said actuation shaft to move longitudinally in said distal direction upon manipulation of said movable handle.
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Accused Products
Abstract
A surgical stapling apparatus. Various embodiments include a handle assembly that has a movable handle that is movable through actuation strokes relative to a stationary handle housing. An actuation is shaft supported at least in part within the stationary handle housing and is movable in response to manipulation of the movable handle. Various embodiments further include a firing lock out assembly that is configured to selectively prevent longitudinal movement of the actuation shaft in a distal direction. A firing release trigger is supported on the movable handle for travel therewith and is configured to interface with the firing lockout assembly to selectively release the firing lockout assembly to permit the actuation shaft to move longitudinally in the distal direction upon manipulation of the movable handle.
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Citations
12 Claims
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1. A surgical stapling apparatus, comprising:
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a handle assembly including a movable handle and a stationary handle housing, the movable handle being movable through actuation strokes relative to said stationary handle housing; an actuation shaft supported at least in part within said stationary handle housing and mounted for longitudinal movement in response to manipulation of said movable handle through said actuation strokes; a control rod assembly having a proximal end interfacing with said actuation shaft, said control rod assembly protruding distally from said handle housing and having a distal end configured to be operably attached to a disposable loading unit; a firing lock out assembly supported at least in part within said stationary handle housing and configured to selectively prevent longitudinal movement of said actuation shaft in a distal direction; and a firing release trigger supported on said movable handle for travel therewith and interfacing with said firing lockout assembly to selectively release said firing lockout assembly to permit said actuation shaft to move longitudinally in said distal direction upon manipulation of said movable handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A surgical stapling apparatus, comprising:
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a handle assembly including a movable handle and a stationary handle housing, the movable handle being movable through actuation strokes relative to said stationary handle housing; an elongated body extending distally from the handle assembly and having a distal end adapted to releasably engage both articulating and non-articulating disposable loading units and transmit actuation motions thereto; an actuation member supported in said stationary handle housing and configured to apply a said actuation motion to said elongated body in response to manipulation of said movable handle through said actuation strokes; a firing lock out assembly supported at least in part within said stationary handle housing and configured to selectively prevent longitudinal movement of said actuation shaft in a distal direction; and a firing release trigger supported on said movable handle for travel therewith and interfacing with said firing lockout assembly to selectively release said firing lockout assembly to generate said actuation motions upon manipulation of said movable handle. - View Dependent Claims (10, 11)
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12. A surgical stapling apparatus, comprising:
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a handle assembly including a movable handle and a stationary handle housing, the movable handle being movable through actuation strokes relative to said stationary handle housing; actuation means supported in said handle assembly for generating actuation motions in response to manipulation of said movable handle; control means interfacing with said actuation means for transferring said actuation motions to a disposable loading unit operably coupled thereto; means for selectively preventing said actuation means from generating said actuation motions; and trigger means on said movable handle for controlling said means for selectively preventing.
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Specification