Retractor
AssigneesTokusen Kogyo Co., Ltd., Osaka University
InventorsKiyokazu Nakajima, Hiroyuki Yamashita
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Abstract
A retractor has a rigid piercing tube and an expansion body. The expansion body has an introduction tube which is received within the piercing tube, a movable wire which is received within the introduction tube, and stationary wires which are arranged around the movable wire. The proximal end of each of the stationary wires is affixed to the distal end of the introduction tube. The distal end of each of the stationary wires is joined to the distal end of the movable wire. The respective proximal ends of the piercing tube, the introduction tube, and the movable wire are respectively joined to first, second, and third grip sections.
Claims6
A retractor for excluding an inside wall of a hollow organ or an organ in a body cavity, the retractor comprising:
- a rigid perforation tube;
- a developing body that is configured to be accommodated and extended with respect to the perforation tube;
- and
- a grip connected to respective proximal ends of the perforation tube and the developing body, wherein
- the developing body includes
- an excluding section configured by a movable wire and a plurality of fixing wires arranged at a periphery of the movable wire, and
- an introducing tube extended from the excluding section, the movable wire being passed through the introducing tube;
- and
- a distal end of the movable wire and a distal end of the fixing wire are joined in the excluding section.
Dependencies are inferred from the claim text.