Patent ID: 8357164
Filing Date: 2013-01-22
Classification: A61B

Abstract:
1. A surgical punch, comprising: a lower part; an upper part which is guided on the lower part in a longitudinally displaceable manner and which can be lifted off said lower part; a punch foot arranged at a distal end of the lower part; a punch blade arranged at a distal end of the upper part and which interacts with the punch foot during a distally directed closing movement of the upper part; a collection chamber arranged in the upper part, in which resected chips cut off by the punch blade are transported, the collection chamber having a retaining serration running in a longitudinal direction of the collection chamber, the retaining serration retaining the resected chips in the collection chamber during the closing movement of the upper part; a cartridge, wherein the cartridge is configured to be inserted into a distal end of the punch, the cartridge having a casing which forms the collection chamber and which is fixed in a non-displaceable manner in the upper part once the cartridge is inserted, wherein the retaining serration is formed on a tooth rail which is guided in the cartridge in a longitudinally displaceable manner and which is fixed in the lower part in a non-displaceable manner once the cartridge is inserted, wherein a distal end of the casing is open and abuts against an inner contour of the punch blade once the cartridge is inserted, wherein a transport serration is formed in the casing, the transport serration running in a longitudinal direction and which, during a proximally directed opening movement of the upper part, pushes the resected chips collected in the casing over the retaining serration of the tooth rail.