Living body tissue harvesting apparatus
AssigneeOlympus Corporation
InventorsHideyuki Kasahara, Takahiro Kogasaka, Takumi Dejima, Manabu Miyamoto
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Abstract
In a bipolar cutter for a living body tissue, a groove part is formed in a member that is arranged close to an active electrode, thereby providing a constitution to cut while the blood stanching is ensured since when a heat amount generated by the active electrode is conducted in the member, an excessive heat conduction to the member is efficiently interrupted by a layer of air that is produced due to the groove part and the living tissue is thus provided with more heat.
Claims16
A living body tissue harvesting apparatus for cutting a living body tissue, comprising:
- a cutter body made of an insulating member;
- an active electrode arranged on one side of the cutter body;
- a return electrode arranged on the other side of the cutter body;
- a heat-resistant member arranged in the cutter body between the active electrode and the return electrode, the heat-resistant member having a groove part that is formed such as to surround the tip part of the active electrode with which the living body tissue comes in contact.
A living body tissue harvesting apparatus for cutting a living body tissue, comprising:
- an insertion section which is inserted in a human body and through which an endoscope is passed;
- a holding unit provided at the lower side of the tip of the insertion section for holding the living body tissue;
- a cutting unit provided at the upper side of the tip of the insertion section for cutting the living body tissue, the cutting unit including a cutter body having a groove for guiding the living body tissue to the tip part thereof, a set of electrodes provided at the tip side of the butter body, and a heat-resistant member arranged between the set of electrodes, the heat-resistant member having a slit groove that extends towards the base end side of the groove for guiding the living body tissue and a groove part that is formed such as to surround the tip part of one of the set of electrodes which comes in contact with the living body tissue and applies an electric current thereto.
Dependencies are inferred from the claim text.