Method and device for manufacturing plungers for medical...

Details Method and device for manufacturing plungers for medical... Method and device for manufacturing plungers for medical...

2003-09-24

2011-12-06

Huson, Monica A (Department: 1742)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C264S328800

Reexamination Certificate

active

08071001

ABSTRACT:
Method for manufacturing plungers for medical syringes, whereby such a plunger (3) consists of at least two parts, namely a longitudinal plunger body (4) made of plastic and a piston body (5) provided at the front end of the plunger body (4) which consists of a plastic which is softer than the plastic of the plunger body (4), characterised in that such a plunger (3), or at least a part (36) thereof, is formed by first manufacturing the piston body (5) and then the plunger body (4), or at least a part (37) of this plunger body (4), by means of injection moulding, whereby the plunger body (4), or the above-mentioned part (37) thereof, is injected against the piston body (5).

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Translation of JP 2001-259031 (related to document to WO 01/70311).

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