초록 ▼

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

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.

대표청구항 ▼

[ What is claimed is:] [1.] A manually actuated sealant applicator for dispensing a mixed output of at least two liquid sealant components, the sealant components being capable, when mixed together, of generating a solid sealant product, the applicator comprising:a) a mixing volume for mixing said a

[ What is claimed is:] [1.] A manually actuated sealant applicator for dispensing a mixed output of at least two liquid sealant components, the sealant components being capable, when mixed together, of generating a solid sealant product, the applicator comprising:a) a mixing volume for mixing said at least two liquid sealant components;b) at least two liquid sealant component delivery passages to deliver respective flows of the sealant components separately to the mixing volume each flow having a sealant component input direction wherein the sealant component input directions are disposed at an included angle of at least 120 degrees, optionally at least 150 degrees, and are disposed to cause the sealant component flows to impinge one upon the other in the mixing volume thereby to cause turbulent flow of the liquid sealant components to enhance mixing of the components; andc) a clearing mechanism capable of providing a clearing force to act on and clear undesired solid sealant product from the mixing volume.