Title:
いずれの方向への回転にも抗う摩擦パッド
Document Type and Number:
Japanese Patent JP6940708
Kind Code:
B2
Abstract:
An assembly for advancing a piston through a rotationally fixed cartridge includes a rotatable, axially fixed first member and an axially movable, rotatable second member connected thereto via a threaded connection and connectable to the piston. A friction pad is rotationally fixedly connected with the second member and includes first and second sets of fingers extending radially outwardly from a central disk. Both the first and second sets of fingers are configured to contact an interior side wall of the cartridge. The first set of fingers are angled toward a first rotational direction and are configured to wedge the friction pad between the side wall and the second member upon rotation of the first member in the first direction, thereby substantially preventing rotation in the first direction. The second set of fingers are angled toward a second rotational direction and are configured to substantially prevent rotation in the second direction.
Inventors:
Hezukiahu Ran
Dauphiné Samuel
Faris Jason W
Dauphiné Samuel
Faris Jason W
Application Number:
JP2020550734A
Publication Date:
September 29, 2021
Filing Date:
March 22, 2019
Export Citation:
Assignee:
West Pharma Services Israel Limited
International Classes:
A61M5/315; A61M5/24; F16D63/00; F16D65/09; F16D65/16; F16D69/00
Domestic Patent References:
| JP2013530778A |
Foreign References:
| US20170080158 |
Attorney, Agent or Firm:
Shoji Suzue