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 inserted into the first and second body portions respectively;
a rotational drive element connected between the first body portion and the second body portion and axially aligned with the body portions when the first and second jaw portions are in a clamped position, such that movement of the drive element pivotally moves the body portions relative to one another;
a drive shaft extending proximally from the drive element; and
an actuating knob mounted on the drive shaft, the actuating knob including a first knob portion with a grooved grasping surface and a second knob portion rotatable and translationally immobile relative to the body portions and the first knob portion, wherein the drive shaft extends through and is rotatable relative to the first knob portion.
2. The surgical clamp of claim 1 wherein the drive element comprises a worm rotatably mounted in the first body portion, a drive shaft extending proximally from the worm, an actuating knob mounted on the drive shaft, and a worm wheel within the second body portion, such that rotation of the knob rotates the worm rotatably mounted in the first body portion and the worm wheel within the second body portion.
3. 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.
4. The surgical clamp of claim 1 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.
5. The surgical clamp of claim 1 further comprising an applier having a distal portion sized and shaped for grasping the cylindrical groove.