Straumann Holding Ag

Institut Straumann Ag

Martin Vogt

Hans Schurch

Werner Schmutz

Eduardo Stadelmann

An assembly for handling a bone implant includes a transfer cap which can be snapped onto the implant, and an adapter which engages with the implant. The head of the implant has a polygonal socket, an outer implant shoulder, and a shoulder edge located beneath the shoulder, while the transfer cap has an elastic lip that snaps over the shoulder edge, and the adapter has a polygonal drive projection adapted to engage within the polygonal socket. The adapter also has a plug-type extension for attaching a screw-in instrument. When the transfer cap is snapped onto the implant and the adapter is inserted, the polygonal projection engages with the polygonal socket on the implant, while the plug-type extension of the adapter that projects through the transfer cap is located on the outside. The transfer cap and the adapter plugged therein are detachably connected to one another.

Assembly for handling an implant

The torque wrench (1) comprises a torque instrument (10) which is known per se--in the present case a ratchet instrument--as well as a torque indicator (40) which can be attached thereto. The torque indicator (40) possesses a sleeve-shaped support (41) which can be pushed onto the handle (12) of the torque instrument (10) and on which a linearly elastic bending rod (51) is fastened. Upon operation, the force (F) is exerted upon the free end of the bending rod (51) and the torque generated is displayed on a graduation (48). At its very front the support (41) possesses a non-rotationally symmetrical insertion zone (42) which receives the transition region (121) of the handle (12) in a manner fixed against rotation. The principal advantages of the torque wrench (1) are its dismantlability and the combination possibilities. The display accuracy of the torque indicator (40) is checked using a special test device.

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Sissach, Switzerland

Martin Vogt