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US 6,514,215 B1Granted
Endoscopic tissue collecting instrument
AssigneePENTAX Corporation
InventorTeruo Ouchi
Life of this patent
Estimating the term…
Abstract
An endoscopic tissue collecting instrument includes a needle shaft with a tip pointed forward, that has a tissue retaining recess formed in a lateral side of an area close to the tip, an outer sheath that is fitted over the needle shaft to be capable of moving back and forth and which has a blade formed at a distal end to cut off a tissue retained in the recess, and an aspiration channel communicating with the recess from a rear side, which is formed between the needle shaft and the outer sheath.
Claims7
An endoscopic tissue collecting instrument comprising:
- a needle shaft with a tip pointed forward, that has a tissue retaining recess formed in a lateral side of an area close to the tip;
- an outer sheath that is fitted over the needle shaft to be capable of moving back and forth and which has a blade formed at a distal end to cut off a tissue retained in the recess;
- and
- a fixing member that is engageable with basal end portions of the needle shaft and the outer sheath and which can be securely connected to or disconnected from an entrance of a treatment instrument insertion channel in an endoscope.
1 more element
Dependencies are inferred from the claim text.