The invention relates to tubular shaft instruments, which are provided with a handle, a tubular shaft and a tool head. The tool head usually has two mouth parts, which can be displaced in relation to one another for gripping and fixing tissue. The invention discloses a slotted guide system for forming...http://www.google.com/patents/US8142474?utm_source=gb-gplus-sharePatent US8142474 - Tubular shaft instrument
