A fixing device for securely fixing surgical equipment to a surgical field of a human or animal body includes a first lever element including a first gripping portion and a first handling portion, and a second lever element including a second gripping portion and a second handling po
A method for defining an antetorsion angle .gamma. of a femur is provided. The antetorsion angle .gamma. is defined by two angles .alpha.' and .beta. that can be determined by means of two images of the femur, wherein the equation tan .gamma.=tan .alpha.'/(cos .beta.cos .theta.) can
A method for optimizing the interpretation of analog image signals or sequences of image signals output by medical image recording devices. The correlation of consecutively recorded image signals is tested and, based on the test, the image signals are identified as depicting the same or
