Title:
METHOD OF MANUFACTURING SYRINGE GASKET AND SYRINGE USING THE GASKET
Document Type and Number:
Japanese Patent JP2018201841
Kind Code:
A
Abstract:
To provide a method of manufacturing a syringe gasket in which a minute protrusion is formed to a peripheral surface of a product after releasing from a mold, and thereby the reliable sealing property of a medicinal solution is improved.SOLUTION: There is provided the method of manufacturing a syringe gasket that comprises a cylindrically-shaped body 2 formed of elastic material and an inactive resin film 3 laminated on the surface of the body 2. At least one minute protrusion 5 extending in the circumferential direction is formed on the surface of the laminated inactive resin film 3 by the thermal processing using a laser beam.EFFECT: A syringe gasket superior in sealing property can be manufactured.SELECTED DRAWING: Figure 1
Inventors:
SAKASHITA YUKI
Application Number:
JP2017110359A
Publication Date:
December 27, 2018
Filing Date:
June 02, 2017
Export Citation:
Assignee:
SUMITOMO RUBBER IND
International Classes:
A61M5/315
Domestic Patent References:
| JP2017023459A | 2017-02-02 | |||
| JP2015146871A | 2015-08-20 | |||
| JP2009213898A | 2009-09-24 | |||
| JP2016509912A | 2016-04-04 |
Foreign References:
| US6090081A | 2000-07-18 |
Attorney, Agent or Firm:
Patent Business Corporation Ai Patent Office