Title:
開創器用バルブキャップ
Document Type and Number:
Japanese Patent JP6678894
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a valve cap for retractor that can easily insert a treatment instrument while maintaining air tightness in a body cavity.SOLUTION: A valve cap 1 for a retractor includes: a canopy member 11 mounted in the outside of a body cavity of the retractor 2 for expanding a wound opening W formed in a body wall, and formed by laminating multiple flexible sheet members 15a, 15b; and a mounting member 14 for hermetically mounting the canopy member 11 to the retractor 2. The sheet members 15 includes a slit 16 for introducing a treatment instrument F penetrating in the thickness direction in the body cavity, and openable and closable holes 19. The holes 19 are configured such that the sheet members 15 are extended in the inside direction of the body cavity when inserting the treatment instrument F into the slit 16. Thereby, the holes 19 are expanded and opened to be brought into communication to the interval of the adjacent sheet member 15, and are made to serve as the passage to introduce air.SELECTED DRAWING: Figure 4
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Inventors:
Yoshihiro Miyazawa
Application Number:
JP2016102868A
Publication Date:
April 15, 2020
Filing Date:
May 23, 2016
Export Citation:
Assignee:
KABUSHIKI KAISHA TOP
International Classes:
A61B17/02
Domestic Patent References:
| JP2014039703A | ||||
| JP5011904U | ||||
| JP2011245017A |
Foreign References:
| US20160000420 |
Attorney, Agent or Firm:
Creation International Patent Office