Turbulence mixing head for a tissue sealant applicator and spray

Details Turbulence mixing head for a tissue sealant applicator and spray Turbulence mixing head for a tissue sealant applicator and spray

1998-03-09

2000-05-16

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604191, A61M 500

Patent

active

060630558

ABSTRACT:
The invention provides a handheld, manually operable fluid applicator, particularly suited to the needs of surgeons, for dispensing a multi-component fluid applicator, for example fibrin and thrombin components of a tissue adhesive. The sealant components undergo turbulent mixing in a mixing chamber which causes a sharp change of at least 60 degrees in the direction of flow of each sealant component, to provide effective mixing and a quality sealant product. The mixing chamber has an increased cross-sectional area over the combined areas of the component supply passages and the fluid flows are directly opposed to impinge on each other in the mixing chamber. The mixing chamber is incorporated in a novel one-piece flexible and resilient manifold. Dual nozzle spray applicators with poppet valves are also disclosed.

REFERENCES:
patent: 3159312 (1964-12-01), Sciver, II
patent: 4040420 (1977-08-01), Speer
patent: 4735616 (1988-04-01), Eibl et al.
patent: 4874368 (1989-10-01), Miller et al.
patent: 5116315 (1992-05-01), Capozzi et al.
patent: 5474540 (1995-12-01), Miller et al.

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