Title:
INTRAVENOUS INFUSION INJECTION NEEDLE
Document Type and Number:
WIPO Patent Application WO/2015/117534
Kind Code:
A1
Abstract:
Disclosed is an intravenous infusion injection needle, comprising an inner needle (2), an outer needle (1), a spring (3), a handle (4) and a colloid material (5). The inner needle (2) and the outer needle (1) are connected by the spring (3) in a resilient and retractable sliding fit, and one of the inner needle (2) and the outer needle (1) is a flat needle, and the other is a sharp-pointed needle. When a nurse punctures a blood vessel, the inner needle (2) shifts backward after coming into contact with the skin, the outer needle (1) shifts forward to pierce the skin and enter into the blood vessel, and the outer needle (1) drives the inner needle 2 into the blood vessel. Due to no resistance being present at the front of the blood vessel, the inner needle (2 ) pops out, the nurse can determine whether the intravenous infusion injection needle has succeeded in puncturing the blood vessel according to the stretching out and drawing back of the spring (3).
More Like This:
| WO/2020/111080 | INDWELLING NEEDLE ASSEMBLY |
| JPS56136569 | CATHETER |
| JPH085714 | [Name of device] Composite needle for anesthesia |
Inventors:
YAN XUESONG (CN)
Application Number:
PCT/CN2015/000075
Publication Date:
August 13, 2015
Filing Date:
February 02, 2015
Export Citation:
Assignee:
YAN XUESONG (CN)
International Classes:
A61M5/158
Domestic Patent References:
| WO2010036003A2 | 2010-04-01 |
Foreign References:
| CN203943968U | 2014-11-19 | |||
| CN2850626Y | 2006-12-27 | |||
| CN201091737Y | 2008-07-30 | |||
| CN202409688U | 2012-09-05 | |||
| CN203291313U | 2013-11-20 | |||
| CN2247536Y | 1997-02-19 | |||
| EP1985324A1 | 2008-10-29 |
Download PDF: