Title:
NEEDLE STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2017/185729
Kind Code:
A1
Abstract:
Disclosed is a needle structure (100), comprising a needle body (200), a housing (300) and a separator (400). The housing (300) is connected to the needle body (200) and includes a housing chamber (310) and an aperture (320). The needle body (200) includes a needle chamber (210) and a needle opening (220). The needle body chamber (210) is connected to the housing chamber (310) to form a needle cavity (102). The separator (400) separates the needle cavity (102) into a first chamber (410) and a second chamber (420).The separator (400) separates the needle opening (220) into an injection opening (430) and a blood return opening (440). The first chamber (410) is loaded with a filler and communicates with the injection opening (430), and the second chamber (420) is connected to the blood return opening (440) and the aperture (320).With the needle structure, the blood return can be determined using the transparency of the second chamber (420) and the aperture (320), so as to avoid injection to a blood vessel to cause embolism when applied by an injector, thereby further ensuring the surgical safety.
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| JP2005237639 | SAFE INDWELLING NEEDLE |
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Inventors:
HUANG HSIANG (CN)
Application Number:
PCT/CN2016/107071
Publication Date:
November 02, 2017
Filing Date:
November 24, 2016
Export Citation:
Assignee:
HUANG HSIANG (CN)
International Classes:
A61M5/158; A61M5/178; A61M5/32; A61M37/00
Foreign References:
| CN204932477U | 2016-01-06 | |||
| US20140025035A1 | 2014-01-23 | |||
| CN205515814U | 2016-08-31 | |||
| CN104010578A | 2014-08-27 | |||
| CN104225727A | 2014-12-24 | |||
| US20030144594A1 | 2003-07-31 |
Attorney, Agent or Firm:
GENUINEWAYS INC. (CN)
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