Driving instrument

Details Driving instrument Driving instrument

A - Human Necessities

61

F

128/41

A61F 2/46 (2006.01) A61B 17/00 (2006.01) A61B 17/74 (2006.01) A61B 17/92 (2006.01) A61B 17/72 (2006.01)

Patent

CA 1187751

Abstract The present invention relates to a driving instrument for driving a fixing means (1), preferably a spike for thigh- -bone necks, for fixing bone fragments (35, 36) at bone fractures, preferably fractures of the thigh-bone neck, whereby said fixing means (1) comprises a sleeve (2), a pin (8) provided in the sleeve (2) and a driving device (12, 13) connected to the sleeve (2) for driving the end portion (9) of the pin (8) out of the sleeve (2) via a side opening (7) therein and into a certain part (38) of surrounding bone material. In order to provide by simple means a driving instrument which by determining the posi- tion of the driving instrument itself, allows for an exact decision of the position of the collum-spike sleeve, where- by eventual adjustment of the position of the collum-spike sleeve to set the opening exactly, may be carried out quickly and without risk fox errors in setting or loosening of the instrument, a portion (13) of the driving device (12, 13) connected to the sleeve (2) holds a maneuvering member (11) unrotatably connected to the sleeve (2), said maneuvering member (11) being arranged for rotating the sleeve (2) in a predrilled passage (37) in the bone and provided with a marking (47) for indicating how the side opening (7) in the sleeve (2) is directed relative to said passage (37).

402632

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