Syringe for automatic injection of an extemporaneous mixture

Details Syringe for automatic injection of an extemporaneous mixture Syringe for automatic injection of an extemporaneous mixture

2005-05-17

2005-05-17

Lucchesi, Nicholas D. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S138000, C604S136000, C604S191000, C604S090000, C604S194000

Reexamination Certificate

active

06893420

ABSTRACT:
The syringe (10) for self-injecting an extemporaneous mixture comprises:a body (60) containing at least two substances (36, 38) initially separated by an intermediate piston (32), which body (60) has two relatively movable portions (64, 66) that are movable between an initial position in which the two substances (36, 38) are separate and a final position in which the two substances (36, 38) are mixed together to form an extemporaneous mixture;automatic means (70, 72) for injecting the extemporaneous mixture out from the body (60) in order to proceed with injection; andlatch means (73) for preventing triggering of the automatic injection means (70, 72).The syringe includes locking means (154, 109) for locking the latch means (73) so as to prevent the automatic injection means (70, 72) being triggered until the two substances have finished being mixed together.

REFERENCES:
patent: 4723937 (1988-02-01), Sarnoff et al.
patent: 4820286 (1989-04-01), van der Wal
patent: 4822340 (1989-04-01), Kamstra
patent: 5281198 (1994-01-01), Haber et al.
patent: 0 405 320 (1991-01-01), None
patent: 0 562 671 (1993-09-01), None
patent: WO 94 09839 (1994-05-01), None

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