Obtained tissue extractor and biopsy forceps
AssigneeOlympus Corporation
InventorTsutomu Okada
Life of this patent
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Abstract
An obtained tissue extractor is used in combination with a biopsy forceps. The biopsy forceps includes an elongate insertion portion to be inserted into a body, and a biopsy cup provided at a tip of the insertion portion, including a pair of cup bodies which obtains a living body tissue, and having holes communicating with the inside of the cup bodies. The obtained tissue extractor includes protrusions, and the protrusions enter the inside of the cup bodies from the holes of the cup bodies when the cup bodies are driven to open in a state set at the distal end of the insertion portion, in order to release the obtained tissue from the cup bodies.
Claims14
An obtained tissue extractor which is used in combination with a biopsy forceps, the biopsy forceps comprising:
- an elongated insertion portion to be inserted into a body;
- a biopsy cup provided at a distal end of the insertion section, including a pair of cup bodies at least one of which is able to be opened/closed and which are configured to obtain a living body tissue, and having holes communicating with the inside of the cup bodies;
- and
- a link mechanism configured to drive the biopsy cup to open/close by remote manipulation at a proximal end of the insertion portion,
- wherein the obtained tissue extractor is able to extract the obtained tissue from the biopsy cup, and the obtained tissue extractor comprises protrusions entering the inside of the cup bodies from the holes of the cup bodies when the cup bodies are driven to open in a state set at the distal end of the insertion portion, in order to release the obtained tissue from the cup bodies.
A biopsy forceps comprising:
- an elongate insertion portion to be inserted into a body;
- a biopsy cup provided at a distal end of the insertion portion, including a pair of cup bodies at least one of which is able tot be opened/closed and which are configured to obtain a living body tissue, and including holes communicating with the inside of the cup bodies;
- a link mechanism configured to drive the biopsy cup to open/close by remote manipulation at hand;
- and
- an obtained tissue extractor having protrusions, the protrusions being slidably provided in the insertion portion, and entering the inside of the cup bodies through the holes of the cup bodies when the cup bodies are driven to open in a state set at the distal end of the insertion portion, in order to release the obtained tissue from the cup bodies.
Dependencies are inferred from the claim text.