Title:
MEDICAL CANNULA
Document Type and Number:
Japanese Patent JP3833484
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cannula which enables quick mounting thereof with a simple operation along repeated use thereof and realize a less cost with a simple structure.
SOLUTION: The cannula 1 is used being fitted into an operation hole in the operation under a laparoscope and is a cylindrical body integrally molded by the same material in which the inner circumference part is uniform in the inner diameter over the entire length thereof without protrusion. At the outer circumference part, a minimum outer diameter part 10, a large diameter part 11 with the outer diameter thereof larger than the allowable maximum inner diameter of the operation hole, a small diameter part 12 enough to leave a repulsive contraction force of the operation hole and a flange part 13 with the diameter the same as or larger than that of the large diameter part 11 are arranged successively through a gradient part in the order closer to the operation hole along the axial direction thereof.
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Inventors:
Tojiro Terachi
Ryuichiro Shinseki
Ryuichiro Shinseki
Application Number:
JP2001066204A
Publication Date:
October 11, 2006
Filing Date:
March 09, 2001
Export Citation:
Assignee:
Morita Manufacturing Co., Ltd.
International Classes:
A61B1/00; A61B17/34; G02B23/24; (IPC1-7): A61B1/00
Domestic Patent References:
| JP9224943A | ||||
| JP9192086A | ||||
| JP9028666A | ||||
| JP7023967A | ||||
| JP6041744U |
Attorney, Agent or Firm:
Hiroyuki Nakai