DE102007008918A1 - Movably supported guide tube for use with carpal forceps, has continuous opening in center to allow surgeon to insert Kirschner wire or drill piece in bone, where tube and holding device are pivotably supported in end piece of shank - Google Patents

Abstract

The tube (5) has a continuous opening in the center to allow a surgeon to insert a Kirschner wire or a drill piece e.g. spiral drill, in a bone e.g. carpal bone. The tube and a tube-shaped holding device (4) are individually movable and pivotably supported in an end piece of a clamping shank (1). A width of an intermediate space between tips of a clasp (6) and an end of the tube are adapted according to anatomical and/or surgical requirements. A forceps with a catch, a notch, or a closure spring is provided according to anatomical requirements, where ends of the tube are toothed.

Description

Bone holding forceps with two clamping legs ( 1 ), with a pin, rivet or screw ( 2 ) are pivotally connected to each other. At the two lower ends of the clamping legs finger rings ( 3 ) for transmitting the hand movement to the terminal legs ( 1 ) serve.

At the upper end of the carpus-Zielzange is a movably mounted tube-shaped holding device ( 4 ). In this movably mounted tubular formed holding device ( 4 ) slides a movably mounted guide tube ( 5 ), which is formed toothed at the end.

On the movably mounted tubular formed holding device ( 4 ) is a hook attached by welding, soldering or other joining technique ( 6 ). The tip of the hook is located axially to the center of the guide tube ( 5 ). The distance between the tip of the hook and the guide tube end can be determined by means of the attached at the bottom of the pliers finger rings ( 3 ) can be varied by moving.

function

The Carpus Target Forceps are designed to accurately insert Kirschner Fixation Wires for fixation of bone fragments in hand surgery fractures, especially in carpal, metacarpal and phalangeal bones. The surgeon can accurately insert a fixation wire (eg Kirschner wire) into the bone or into the bone fragments immediately after the fracture is repositioned, whereby the axially centric tip of the hook ( 6 ) is the destination point.

Claims (8)

The movably mounted guide tube ( 5 ) has a continuous opening in the center, allowing the surgeon to accurately insert a Kirschner wire or a drill bit (such as a twist drill) into the bone. The tubular formed holding device ( 4 ) and the movably mounted guide tube ( 5 ) are each individually rotatably mounted in the tail of the terminal leg movable. In this way, a change of direction / angular deviation during axial movement by opening and closing the rings ( 3 ) prevented. The shape of the hook ( 6 ) may be circular, rectangular, sickle-shaped or a combination of several elements, depending on the antomic requirement. The clear width between the tip of the hook ( 6 ) and end of the guide tube ( 5 ) can - depending on anatomical, or surgical requirement - be adjusted. Depending on the anatomical requirement, the forceps with a lock or catch or closing spring are provided. the guide tube ( 5 ) is movably mounted in a tubular formed holding device ( 4 ). at the tubular formed holding device ( 4 ) is a hook attached by welding, soldering or other joining technique ( 6 ). The tip of the hook ( 6 ) is located axially to the center of the guide tube ( 5 ). The distance between the tip of the hook ( 6 ) and the guide tube end ( 5 ) can be fixed with the help of the finger rings ( 3 ) can be varied by moving. The guide tube end ( 5 ) is formed toothed.