| 摘要 |
PCT No. PCT/DE94/00156 Sec. 371 Date Aug. 16, 1995 Sec. 102(e) Date Aug. 16, 1995 PCT Filed Feb. 15, 1994 PCT Pub. No. WO94/18899 PCT Pub. Date Sep. 1, 1994A device and method for preparing for and supporting surgical operations includes a numerically controlled positioning appliance which is arranged in a predetermined or measurable geometric relationship with respect to an operating site. A surgical instrument, such as a machining tool or a holder for a graft, can be releasably connected to this positioning appliance for movement in relation to the operation site. A measurement appliance is used for measuring coordinates of the operation site in relation to a stationary reference system. The holder can be releasably secured to the positioning appliance or, alternatively, can be secured on a securing device which is stationary in relation to the reference system. The securing device is arranged in a predetermined or measurable geometric relationship with respect to the operation site. A data processing unit with memory controls the positioning appliance. The memory stores a data record of a three-dimensional structural image of the operation site. The three-dimensional image of the operation site is prepared from individual morphology data determined by noninvasive examination procedures prior to surgery. This image is used as the basis for the planning of osteotomy lines. The coordinates of the osteotomy lines are taken over in control commands for the positioning. |
