Handleless clamping device
The present invention relates to surgical clamps and clamp devices that provide a handle-free surgical field. The clamp jaws may be opened or closed by a rotationally or translationally moveable drive element that may be actuated from a position proximal or distal to the jaws. The surgical clamps may also be deployed using a clamp applier which slidably engages the clamp along a wire to releasably attach itself to the clamp.
1. A surgical clamp comprising
first and second body portions having proximal and distal ends, the proximal ends being pivotally connected, and said first and second body portions further comprising first and second jaw portions extending from the first and second body portions respectively, said first body portion including a first slot and said second body portion including a second slot;
a rotational drive element extending between the first body portion and the second body portion, the rotational drive element axially aligned with the first and second jaw portions when the first and second jaw portions are in a clamped position; and
a threaded member coupled to the rotational drive element and positioned within the first and second slots, wherein movement of the drive element moves the threaded member along the second slot to apply a force to the first body portion that pivots the first body portion with respect to the second body portion.
2. The surgical clamp of claim 1 further comprising a drive shaft extending proximally from the drive element.
3. The surgical clamp of claim 2 further comprising an actuating knob mounted on the drive shaft.
4. The surgical clamp of claim 3 wherein the actuating knob includes a cylindrical V-groove.
5. The surgical clamp of claim 4 further comprising an applier having a distal portion sized and shaped for grasping the cylindrical V-groove.
6. The surgical clamp of claim 3 further comprising an applier having a rotating shaft having a distal and proximal end, a drive head at the rotating shaft distal end, a handle at the rotating shaft proximal end, such that rotation of the handle, rotating shaft, and drive head relative to the actuating knob rotates the drive element.
7. The surgical clamp of claim 1 wherein the drive element comprises a rod threaded through the threaded member, a drive shaft extending proximally from the rod, and an actuating knob mounted on the drive shaft, such that rotation of the actuating knob rotates the rod which applies an axial force on the threaded member and first body portion.
8. The surgical clamp of claim 1 further comprising an applier releasably attached to said clamp and engaged with the drive element to actuate the drive element.
9. The surgical clamp of claim 1 wherein the second slot constrains the threaded member to linear movement parallel to the second jaw portion.
10. The surgical clamp of claim 1 wherein the first slot pivots with respect to the threaded member when the threaded member applies the force to the first body portion.
11. The surgical clamp of claim 1 wherein the first slot is a through slot in a wall of the first body portion.