| 摘要 |
In the osteosynthetic treatment of bone fractures there is a problem in that the plate material used must be adapted as optimally as possible to the bone, that is, it must be pre-bent. This bending process is generally carried out by the surgeon using forceps, plate benders and the like. The present invention solves this problem as follows: a readily deformable plate (e.g. one made of lead) whose dimensions correspond to those of the desired osteosynthesis plate is placed on the fracture area in the same manner as the osteosynthesis plate to be used subsequently and is adapted to the shape of the bone by manual pressure. This lead plate is then placed in a device which essentially comprises two rows of pins arranged one on top of the other. These pins make contact with the lead plate, after which the pins of each row are fixed relative to one another, for example by lateral compressive forces. The desired osteosynthesis plate is then placed between the rows of pins and pre-bent in the form of the lead plate in a suitable pressing device. In order to balance out any resilient springing-back of the osteosynthesis plate, beads and notches on the sides of the pins can engage each other in such a way that on clamping the pins laterally those pins which already project somewhat further after the contacting operation slip forward to a somewhat greater extent than their neigbouring pins (see Fig. 2). <IMAGE>
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