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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0810325 (1991-12-19) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 556 인용 특허 : 0 |
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 b
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 reservoir with walls of sufficient strength to resist collapse under a given vacuum; an inlet port of said reservoir for connection of the tube connected to th
A medical device for withdrawing blood from the site of an operation by a tube which has been connected for drainage therefrom comprising: a reservoir with walls of sufficient strength to resist collapse under a given vacuum; an inlet port of said reservoir for connection of the tube connected to the operation site; an outlet means from said reservoir; a hand operated piston type displacement pump in connected relationship to said reservoir for withdrawing air from said reservoir and creating an attendant vacuum, means for reciprocating said piston type displacement pump; and, means for checking the introduction of air into the reservoir after a displacement thereof has taken place.
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