1) Surgical instrument 
A bioptome is a small pincer-shaped cutting/grasping instrument used in medicine for taking biopsy specimens. It can either be built into or threaded through a vascular catheter or endotracheal tube that delivers the bioptome directly to the desired site of tissue sample (in this case, probably the inner walls of the heart or gastrointestinal trac...
A biopsy instrument passed through a catheter into the heart to obtain pieces of tissue for diagnosis. ... Origin: biopsy + G. Tome, a cutting ... (05 Mar 2000) ... 
Type: Term Pronunciation: bī-op′tōm Definitions: 1. A biopsy instrument passed through a catheter into the heart to obtain pieces of tissue for diagnosis.
bioptome Of or relating to a biopsy.