Surgical instrument
First Claim
1. A surgical instrument comprising:
- an instrument shaft having proximal and distal ends;
a tool disposed from the distal end of the instrument shaft;
a control handle disposed from the proximal end of the instrument shaft;
a distal motion member for coupling the distal end of said instrument shaft to said tool;
a proximal motion member for coupling the proximal end of said instrument shaft to said handle;
actuation means extending between said distal and proximal motion members for coupling motion of said proximal motion member to said distal motion member for controlling the positioning of said tool;
a rotation knob disposed adjacent the control handle and rotatable relative to the control handle for causing a corresponding rotation of the instrument shaft and tool;
and a locking mechanism for fixing the position of the tool at a selected position and having locked and unlocked states;
said rotation knob having a first position in which the locking mechanism is controlled to be in its locked state and a second position in which the locking mechanism is released to its unlocked state so as to allow tool positioning.
4 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument that includes an instrument shaft having proximal and distal ends, a tool disposed from the distal end of the instrument shaft, a control handle disposed from the proximal end of the instrument shaft, a distal motion member for coupling the distal end of the instrument shaft to the tool, a proximal motion member for coupling the proximal end of the instrument shaft to the handle, actuation means extending between the distal and proximal motion members for coupling motion of the proximal motion member to the distal motion member for controlling the positioning of the tool, a rotation knob disposed adjacent the control handle and rotatable relative to the control handle for causing a corresponding rotation of the instrument shaft and tool and a locking mechanism for fixing the position of the tool at a selected position and having locked and unlocked states. The rotation knob has a first position in which the locking mechanism is controlled to be in its locked state and a second position in which the locking mechanism is released to its unlocked state so as to allow tool positioning.
152 Citations
30 Claims
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1. A surgical instrument comprising:
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an instrument shaft having proximal and distal ends; a tool disposed from the distal end of the instrument shaft; a control handle disposed from the proximal end of the instrument shaft; a distal motion member for coupling the distal end of said instrument shaft to said tool; a proximal motion member for coupling the proximal end of said instrument shaft to said handle; actuation means extending between said distal and proximal motion members for coupling motion of said proximal motion member to said distal motion member for controlling the positioning of said tool; a rotation knob disposed adjacent the control handle and rotatable relative to the control handle for causing a corresponding rotation of the instrument shaft and tool; and a locking mechanism for fixing the position of the tool at a selected position and having locked and unlocked states; said rotation knob having a first position in which the locking mechanism is controlled to be in its locked state and a second position in which the locking mechanism is released to its unlocked state so as to allow tool positioning. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A surgical instrument comprising:
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an instrument shaft having proximal and distal ends; a tool disposed from the distal end of the instrument shaft; a control handle disposed from the proximal end of the instrument shaft; a distal motion member for coupling the distal end of said instrument shaft to said tool; a proximal motion member for coupling the proximal end of said instrument shaft to said handle; actuation means extending between said distal and proximal motion members for coupling motion of said proximal motion member to said distal motion member for controlling the positioning of said tool; said control handle including a pistol grip handle; and an actuation lever for controlling said tool and pivotally supported from said handle; said actuation lever having a free end with a recess for receiving a finger of the user to control the actuation lever. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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- 22. In a medical instrument having a proximal control handle and a distal tool that are intercoupled by an elongated instrument shaft that is meant to pass internally of an anatomic body, proximal and distal movable members that respectively intercouple said proximal control handle and said distal tool with said instrument shaft, cable actuation means disposed between said movable members, said control handle having proximal and distal ends, an actuation lever for controlling said distal tool, means for pivotally supporting said actuation lever from the proximal end of said handle at one side thereof, a horn and means for fixedly supporting said horn from the distal end of said handle at an opposite side thereof.
Specification