Title:
SAFE VENOUS INDWELLING NEEDLE
Document Type and Number:
WIPO Patent Application WO/2019/201093
Kind Code:
A1
Abstract:
A safe venous indwelling needle, comprising a needle tube (11), a needle tube holder (12), a sleeve (14) and a sleeve seat (15); the needle tube seat (12) and the sleeve seat (15) are sleeved with each other, and the sleeved portions may slide relative to the axial direction under mutual guidance, at least one elastic component (18), which is deformed by an external force and which comprises a selectable compression spring (18a) therein, being provided between the needle tube holder (12) and the sleeve seat (15); further comprised is at least one needle tube seat handle (16) that may be integrated with the needle tube seat (12), the needle tube seat handle (16) being provided thereon with a contact component (17) that may contact the sleeve seat (15) under the drive of an external force; the contact component (17) may be a region on the needle tube seat handle (16) that may contact the sleeve seat (15), or may be a movable portion that extends from the needle tube seat handle (16) and that may be deformed by an external force, such as a sheet-shaped extension from the needle tube seat handle (16), at least one position on the contact component (17) being in contact with a portion of the area of the sleeve seat (15).
Inventors:
DONG DONGSHENG (CN)
Application Number:
PCT/CN2019/081278
Publication Date:
October 24, 2019
Filing Date:
April 03, 2019
Export Citation:
Assignee:
BEIJING YANGSHENG HENGTAI TECH CO LTD (CN)
International Classes:
A61M5/158
Foreign References:
| CN206700475U | 2017-12-05 | |||
| CN206214515U | 2017-06-06 | |||
| CN201414968Y | 2010-03-03 | |||
| CN206995555U | 2018-02-13 | |||
| CN203355026U | 2013-12-25 | |||
| JP2003175112A | 2003-06-24 |
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