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US 5,279,550 AGranted
Orthopedic autotransfusion system
AssigneeGish Biomedical, Inc.
InventorsMagdi F. Habib, George W. White, Jack W. Brown
Life of this patent
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AssigneeGish Biomedical, Inc.
InventorsMagdi F. Habib, George W. White, Jack W. Brown
Estimating the term…
The following disclosure comprises a medical autotransfusion and blood drainage reservoir for withdrawing blood from the site of an operation under vacuum. A walled reservoir is connected to the operation site and a vacuum is drawn therein to draw fluids from the operation site. Vacuum is provided by a piston pump connected to check valves. The check valves allow for movement of the piston pump in one direction to discharge air therefrom, and in the other direction to withdraw air from the reservoir. Alternatively a spring driven bellows can be used to draw a vacuum with attendant check valves. The inlet of blood flow is through a filter. Blood is then capable of flowing outwardly to be reinfused by autotransfusion or reinfusion at a later time. Vacuum indication means and bleed off valves are included for maintenance of a proper vacuum.
A medical device for withdrawing blood from the site of an operation by a tube which has been connected for drainage therefrom comprising:
A device for providing autotransfusion and/or withdrawal of fluids from the site of an operation wherein an inlet tube has been connected to the site of the operation comprising:
The method of withdrawing blood from the site of an operation by a tube which is connected in proximate relationship to said site comprising:
Dependencies are inferred from the claim text.