SYRINGE PLUNGER - DONGGUAN INJECTION RUBBER IND

Title:

SYRINGE PLUNGER

Document Type and Number:

WIPO Patent Application WO/2008/151480

Kind Code:

A1

Abstract:

A syringe plunger has a hole arranged in its plunger central axis, with a diaphragm arranged in the hole. The thickness of the diaphragm in the hole is from 0.01mm to 0.5mm. A manufacturing method of a syringe plunger includes the steps of: adding pigment into medical rubber and stirring uniformly; each of a fixed die and a movable die of a medical rubber syringe die being embedded with an impacting and penetrating needle, when molding and die closing, space between the impacting and penetrating needles of the fixed die and the movable die being 0.01mm to 0.5mm; demolding the molded medical rubber plunger.

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Inventors:

LI JIANXIN (CN)

Application Number:

PCT/CN2007/003267

Publication Date:

December 18, 2008

Filing Date:

November 19, 2007

Export Citation:

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Assignee:

DONGGUAN INJECTION RUBBER IND (CN)
LI JIANXIN (CN)

International Classes:

B29C45/00; A61M5/315

Foreign References:

CN101066483A	2007-11-07
CN2601682Y	2004-02-04
CN2772523Y	2006-04-19
CN1903386A	2007-01-31
CN1487873A	2004-04-07
US6562009B1	2003-05-13

Attorney, Agent or Firm:

DONGGUAN CITY ZHONGZHENG INTELLECTUAL PROPERTY OFFICE (Junda Business CenterNo. 23 Dongchengdadao,Dongguan, Guangdong 0, CN)

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