Title:
積層型止具を含む医療用送達装置
Document Type and Number:
Japanese Patent JP7348216
Kind Code:
B2
Abstract:
The present disclosure relates to a medical delivery device that includes a barrel having an inner surface, a plunger rod having a distal end inserted within the barrel, and a stopper attached to the distal end of the plunger rod and contacting at least a portion of the inner surface of the barrel. In at least one embodiment, the inner surface is hydrophilic. The stopper may include an elastomeric body, one or more polyethylene layers, and two or more ribs laminated with the one or more polyethylene layers. In some embodiments, the contact width between at least one rib having a sealing surface and the portion of the inner surface of the barrel measured at a compressibility of greater than about 7.9% of the stopper is less than about 1.0 mm.
Inventors:
Greg Rush
Robert Sea Basham
Robert Sea Basham
Application Number:
JP2021007025A
Publication Date:
September 20, 2023
Filing Date:
January 20, 2021
Export Citation:
Assignee:
W.L. GORE & ASSOCIATES, INCORPORATED
International Classes:
A61M5/315; A61L31/04; A61M5/31
Domestic Patent References:
| JP2006519070A | ||||
| JP2013509270A | ||||
| JP5722766A |
Foreign References:
| WO2015016170A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Junichi Tsuruta
Tomohiro Minamiyama
Youichi Watanabe
Kazuhiro Nakamura
Satoshi Deno
Shinji Mihashi
Junichi Tsuruta
Tomohiro Minamiyama
Youichi Watanabe
Kazuhiro Nakamura
Satoshi Deno
Previous Patent: Valves for fluid pressure equipment
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