Title:
PRESS-TYPE BLOOD LANCET
Document Type and Number:
WIPO Patent Application WO/2022/198440
Kind Code:
A1
Abstract:
A press-type blood lancet, comprising a shell (1), a sliding sleeve (2), a needle core (3) and a first spring (4). A needle outlet is formed at the lower end of the shell (1), and an upper cover (5) is detachably connected to the upper end of the shell (1); the sliding sleeve (2) can slide in the shell (1) and the lower end of the sliding sleeve (2) can extend out of the shell (1) from the needle outlet; the lower end of the needle core (3) is provided with a needle, and the needle core (3) can slide relative to the sliding sleeve (2) to expose the needle at the needle outlet; the shell (1) is internally provided with a first channel (11) and a second channel (12) which are communicated with each other and coaxially arranged from bottom to top; the sliding sleeve (2) is provided with a plurality of elongate grooves (21) extending from the upper opening to the lower rend; the elongate grooves (21) provide radial deformation elasticity for the side wall of the sliding sleeve located at the upper end; at least one sliding block (31) abutting against the upper end of the side wall of the sliding sleeve is arranged on the side wall of the needle core (3) and extends outwards; when the sliding sleeve (2) is located in the first channel (11), the sliding block (31) abuts against the upper end of the side wall of the sliding sleeve (2); when the sliding sleeve (2) moves into the second channel (12) under the action of an external force, the outer wall of the sliding sleeve (2) expands under the pressing of the sliding block (31), the needle core (3) slides in the sliding sleeve (2) under the action of the first spring (4) and pierces the needle outlet. The press-type blood lancet is convenient to assemble, stable in release and good in blood sampling effect.
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Inventors:
SHI YE (CN)
Application Number:
PCT/CN2021/082378
Publication Date:
September 29, 2022
Filing Date:
March 23, 2021
Export Citation:
Assignee:
SUZHOU KYUAN MEDICAL APPARATUS CO LTD (CN)
International Classes:
A61B5/151
Foreign References:
| CN204394532U | 2015-06-17 | |||
| CN104490406A | 2015-04-08 | |||
| CN110013257A | 2019-07-16 | |||
| CN102370487A | 2012-03-14 | |||
| CN111759325A | 2020-10-13 | |||
| CN212307845U | 2021-01-08 | |||
| CN106419934A | 2017-02-22 | |||
| CN107157494A | 2017-09-15 | |||
| US20180256081A1 | 2018-09-13 | |||
| CN111436951A | 2020-07-24 |
Attorney, Agent or Firm:
SHANGHAI HUICHENGHEYI INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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