Surgical instrument
OwnerWoojin Leeinventor
Life of this patent
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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 and a locking mechanism for fixing the position of the tool at a selected position and having locked and unlocked states.
Claims33
An instrument having a proximal control handle and a distal tool that are intercoupled by an elongated instrument shaft, proximal and distal movable members that respectively intercouple said proximal control handle and said distal tool with said instrument shaft, means disposed between said movable members so that a motion at said proximal movable member controls said distal movable member, means for restraining said distal movable member at a first relative position between said movable members, means for enabling said proximal movable member to be moved from said first relative position to a second relative position between said movable members while said distal movable member is so restrained by said means for restraining, said means for restraining being releasable to enable subsequent control of said distal movable member from said proximal movable member commencing from said second relative position, wherein said means disposed between said movable members includes cabling and said means for restraining includes a cable pinching member that holds the cabling distal thereof immobile, and wherein said means for enabling includes a follower having locked and unlocked states, said follower spacedly disposed proximal to said proximal movable member, and said follower being in its unlocked state to enable said proximal movable member to be moved from said first relative position to said second relative position.
An instrument having a proximal handle and a distal tool that are intercoupled by an elongated instrument shaft;
- proximal and distal movable members that respectively intercouple said proximal handle and said distal tool with said instrument shaft;
- cabling disposed between said movable members so that a motion at said proximal movable member controlled from said proximal handle, in turn, controls said distal movable member;
- a cable pinch member disposed distally of said proximal movable member and having locked and released states;
- said cable pinch member, in the locked state thereof, fixing the position of the distal movable member and distal tool;
- and a follower mechanism disposed proximally of the proximal movable member and having locked and unlocked states;
- said follower mechanism, in the unlocked state thereof, enabling said proximal movable member to be repositioned, controlled from said proximal handle, while said distal movable member is so restrained by said cable pinch member.
An instrument having a proximal control handle and a distal tool that are intercoupled by an elongated instrument shaft;
- proximal and distal movable members that respectively intercouple said proximal control handle and said distal tool with said instrument shaft;
- cabling disposed between said proximal and distal movable members and including proximal and distal cabling ends so that a motion at said proximal movable member controls said distal movable member and, in turn, the positioning of said distal tool;
- and
- a follower mechanism spaced from said proximal movable member, disposed proximal of said proximal movable member and having locked and unlocked states;
- said follower mechanism, in the unlocked state thereof, enabling said proximal movable member to be moved without controlling the movement of the distal movable member.
Dependencies are inferred from the claim text.