Title:
多機能な針ホルダーと保持器リングのアッセンブリを有するシリンジ
Document Type and Number:
Japanese Patent JP7441236
Kind Code:
B2
Abstract:
A syringe for medical use, the syringe having a selectively retractable needle and a multifunctional needle holder and retainer ring assembly including a needle holder with a head section having an inwardly tapering frustoconical section of the fluid pathway and a rearwardly facing annular surface surrounding the rear opening, and an elastomeric retainer ring with a substantially unexpanded collar extending rearwardly beyond the rearwardly facing annular surface to increase needle pushout force, reduce activation force and improve fluid flow through the syringe. Annular projections inside the retainer ring and on the outer surface of the head section of the needle holder are also disclosed.
Inventors:
SHAW,Thomas J.
Zhou
Deuceman, Jordan
Zhou
Deuceman, Jordan
Application Number:
JP2021549953A
Publication Date:
February 29, 2024
Filing Date:
September 19, 2019
Export Citation:
Assignee:
Retractable Technologies, Inc.
SHAW,Thomas J.
SHAW,Thomas J.
International Classes:
A61M5/32
Domestic Patent References:
| JP2005177467A | ||||
| JP2012509716A | ||||
| JP2008516676A | ||||
| JP200761623A |
Attorney, Agent or Firm:
Maruyama International Patent Office