Biopsic forceps

Abstract

Abstract A biopsic forceps for taking structural specimen within body cavities as inserted into a forceps channel of an endoscope or directly into an incised body cavity. Known biopsy forceps have various formations for taking structures within body cavities. However, in the biopsic forceps of this invention, a pair of resilient holding pieces 23 and 24 separate to form a V are provided at the tip of a shaft 22 slidably inserted through a pipe 21, respective cutting blades 25 and 26 opposed to each other are provided on these holding pieces so that, when the holding pieces project from the pipe, they separate from each other to open the cutting blades and, when the holding pieces are retracted into the pipe they close to mesh the cutting blades with each other.. The shaft 22 is supported by one of a pair of handles 31, 32 moving to open and close about an off-set fulcrum 33 as a centre and the pipe 21 is supported by the other handle so as to be moved axially along the shaft so that if the structure of a part to be inspected (affected part) is hard, and strong force needs to be applied to retract the holding pieces into the pipe to mesh the cutting blades, the shaft is not subjected to any unreasonable bending force, and will be enither bent nor broken.

Inventors

• 👤 Shozo Hirayama

Bibliographic Details