Title:
SAFETY HYPODERMIC NEEDLE
Document Type and Number:
WIPO Patent Application WO/2022/121091
Kind Code:
A1
Abstract:
A safety hypodermic needle, consisting of a hub (1), a shaft (2), and a protective sheath (3). The protective sheath (3) is divided into an upper protective sheath body (32), a lower fixing plate (31), and a connecting part (33) between the upper protective sheath body (32) and the lower fixing plate (31); the protective sheath body (32) is connected to the connecting part (33) by a first thin wall (331); the fixing plate (31) is connected to the connecting part (33) by a second thin wall (332); the fixing plate (31) is embedded on the outer surface of the hub (1); the protective sheath body (32) is a U-shaped groove (321), and the length of the protective sheath body (32) is greater than that of the shaft (2); the inner wall of the U-shaped groove (321) is provided with two locking pieces (325) extending downwards to the opposite side, the locking pieces may intersect with each other, and the intersection is located below the central line (C) of the groove.
Inventors:
ZHANG YAPING (CN)
Application Number:
PCT/CN2021/073867
Publication Date:
June 16, 2022
Filing Date:
January 27, 2021
Export Citation:
Assignee:
ZHANG YAPING (CN)
International Classes:
A61M5/32
Foreign References:
| CN112386770A | 2021-02-23 | |||
| CN205287134U | 2016-06-08 | |||
| CN110354342A | 2019-10-22 | |||
| CN101031327A | 2007-09-05 | |||
| CN103285458A | 2013-09-11 | |||
| CN104117117A | 2014-10-29 | |||
| US20160220766A1 | 2016-08-04 | |||
| US5492536A | 1996-02-20 |
Attorney, Agent or Firm:
MUDA INTELLECTUAL PROPERTY FIRM (CN)
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