Pharmaceutical storage and mixing syringe

Details Pharmaceutical storage and mixing syringe Pharmaceutical storage and mixing syringe

1993-10-20

1995-08-29

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604 91, 604191, A61M 3700

Patent

active

054456142

ABSTRACT:
A unitary syringe assembly including a diluent syringe and a jell syringe stores and enables convenient transport of isolated components required for injection. A valve is placed between the two syringes. Immediately before required injection, the valve is opened and intermixing injection and reception of the diluent and jell between the two syringes occurs to thoroughly intermix the diluent and jell. The valve aperture size is selected to provide viscous resistance by the jell until thorough mixing has occurred to provide the user with a tactile indication of sufficient mixing. Upon complete mixing, a needle is attached and injection occurs. Paired side-by-side unitary syringes are utilized with an interconnecting mixing manifold with injection occurring from one syringe only to enable higher needle injection pressure.

REFERENCES:
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patent: 4609371 (1986-09-01), Pizzino
patent: 4620794 (1986-11-01), Leka
patent: 4689042 (1987-08-01), Sarnoff et al.
patent: 5067948 (1991-11-01), Haber et al.
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patent: 5211285 (1993-05-01), Haber et al.
patent: 5240146 (1993-08-01), Smedley et al.
patent: 5281198 (1994-01-01), Haber et al.
patent: 5290259 (1994-03-01), Fischer

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