Automatic needle insertion mechanism

Details Automatic needle insertion mechanism Automatic needle insertion mechanism

1997-07-03

1999-11-09

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604137, A61M 520

Patent

active

059804912

ABSTRACT:
An automatic needle insertion device for a pen shaped syringe comprising a cartridge holder (2) wherein a cartridge with a drug can be accommodated, and a dose setting and injection part (1) by which a wanted dose may be set an subsequently pressed out from the cartridge by pressing a button (12) projecting from the dose setting and injection part (1). The device comprises a mainly tubular housing (31) in which a tubular pen holder (22) in which a pen can be mounted can be axially displaced in a proximal direction to cock a spring (30) which can thereafter be released to drive the pen holder (22) with the pen a set distance in a distal direction.

REFERENCES:
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patent: 5141496 (1992-08-01), Dalto et al.
patent: 5282793 (1994-02-01), Larson
patent: 5358489 (1994-10-01), Wyrick
patent: 5478316 (1995-12-01), Bitdinger et al.
patent: 5591188 (1997-01-01), Wasman
patent: 5634906 (1997-06-01), Haber et al.
patent: 5637094 (1997-06-01), Stewart, Jr. et al.

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