Device for separating the connecting end of a hypodermic...

Details Device for separating the connecting end of a hypodermic... Device for separating the connecting end of a hypodermic...

2005-05-10

2005-05-10

Gehman, Bryon P. (Department: 3728)

Special receptacle or package

For a tool

Body treatment

C206S366000, C600S576000, C600S577000, C604S192000

Reexamination Certificate

active

06889830

ABSTRACT:
The connecting end of the hypodermic needle is so designed that it can be attached to and then disconnected from the tip of an injection instrument by pressure, that is, an axial tractional force exerted between the said needle and the said injection instrument. The extraction device has an opening delimited by locking elements forming one piece with elastic pieces so as to allow its diameter to vary between a minimum diameter and a maximum diameter at least equal to the diameter of the said connecting end and at least one piece associated with the said locking elements for the purpose of converting an axial force exerted on the said piece into at least one radial component capable of being applied to the said elastic pieces so as to deform them radially in order to increase the diameter of the said opening when axial pressure is exerted by the said connecting end.

REFERENCES:
patent: 4932418 (1990-06-01), Coburn
patent: 4989307 (1991-02-01), Sharpe et al.
patent: 5092462 (1992-03-01), Sagstetter et al.
patent: 5273161 (1993-12-01), Sagstetter
patent: 5409112 (1995-04-01), Sagstetter
patent: 5545145 (1996-08-01), Clinton et al.
patent: 5810167 (1998-09-01), Fujii
patent: 5873462 (1999-02-01), Nguyen
patent: 5968021 (1999-10-01), Ejlersen
patent: 0 364 839 (1990-04-01), None
patent: WO 9213585 (1992-08-01), None
patent: WO 9740869 (1997-11-01), None

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