Apparatus for endoscopic procedures
First Claim
1. A shaft assembly for selectively interconnecting an end effector and an electromechanical power source, the shaft assembly comprising:
- an outer tube;
a rotatable drive shaft supported therein;
a proximal neck housing supported at a distal end of the outer tube;
a distal neck housing pivotally connected to the proximal neck housing, wherein a distal end of the distal neck housing is configured and adapted for operative connection with the end effector;
a pivot pin interconnecting the proximal neck housing and the distal neck housing; and
a gear train supported in the proximal neck housing, on the pivot pin, and in the distal neck housing, wherein the gear train includes;
a proximal gear rotatably supported in the proximal neck housing and being coupled to a distal end of the rotatable drive shaft;
an intermediate gear rotatably supported on the pivot pin and being in operative engagement with the proximal gear;
a distal gear rotatably supported in the distal neck housing and being in operative engagement with the intermediate gear; and
a pair of output gears rotatably supported in the distal neck housing and each being in operative engagement with the distal gear, wherein each output gear defines a coupling socket each configured to selectively receive the drive axle of the end effector; and
a release assembly disposed at a distal end of the shaft assembly, the release assembly includes a pair of opposing cam blocks and is configured for selective engagement with the end effector, the release assembly being actuatable from a proximal end of the shaft assembly such that the pair of cam blocks rotate about a rotation axis defined by the pair of cam blocks, the rotation axis being transverse to a central longitudinal axis defined by the shaft assembly.
1 Assignment
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Accused Products
Abstract
An electromechanical surgical device includes an end effector configured to perform at least one function, the end effector including an input drive axle projecting therefrom; and a shaft assembly. The shaft assembly includes a rotatable drive shaft; a proximal neck housing supported at a distal end of an outer tube; a distal neck housing pivotally connected to the proximal neck housing; a pivot pin interconnecting the proximal neck housing and the distal neck housing; and a gear train supported in the proximal neck housing, on the pivot pin, and in the distal neck housing. The gear train includes a proximal gear; an intermediate gear; a distal gear; and a pair of output gears, wherein each output gear defines a coupling socket each configured to selectively receive the drive axle of the end effector.
963 Citations
19 Claims
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1. A shaft assembly for selectively interconnecting an end effector and an electromechanical power source, the shaft assembly comprising:
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an outer tube; a rotatable drive shaft supported therein; a proximal neck housing supported at a distal end of the outer tube; a distal neck housing pivotally connected to the proximal neck housing, wherein a distal end of the distal neck housing is configured and adapted for operative connection with the end effector; a pivot pin interconnecting the proximal neck housing and the distal neck housing; and a gear train supported in the proximal neck housing, on the pivot pin, and in the distal neck housing, wherein the gear train includes; a proximal gear rotatably supported in the proximal neck housing and being coupled to a distal end of the rotatable drive shaft; an intermediate gear rotatably supported on the pivot pin and being in operative engagement with the proximal gear; a distal gear rotatably supported in the distal neck housing and being in operative engagement with the intermediate gear; and a pair of output gears rotatably supported in the distal neck housing and each being in operative engagement with the distal gear, wherein each output gear defines a coupling socket each configured to selectively receive the drive axle of the end effector; and a release assembly disposed at a distal end of the shaft assembly, the release assembly includes a pair of opposing cam blocks and is configured for selective engagement with the end effector, the release assembly being actuatable from a proximal end of the shaft assembly such that the pair of cam blocks rotate about a rotation axis defined by the pair of cam blocks, the rotation axis being transverse to a central longitudinal axis defined by the shaft assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification