Fail safe system for operating medical fluid valves
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-001/00
A61M-005/00
F16K-005/10
F16K-005/00
출원번호
US-0155288
(2002-05-24)
발명자
/ 주소
Busby,Don
Hopping,Peter
출원인 / 주소
Baxter International Inc.
Baxter Healthcare, S.A.
대리인 / 주소
Bell, Boyd &
인용정보
피인용 횟수 :
57인용 특허 :
93
초록▼
A method, system and apparatus for performing peritoneal dialysis are provided. To this end, in part, a cam arrangement for operating a series of valves in cooperation with a pump that pumps fluid to and from a patient, the valves including a supply valve, a drain valve, a from-patient valve and a t
A method, system and apparatus for performing peritoneal dialysis are provided. To this end, in part, a cam arrangement for operating a series of valves in cooperation with a pump that pumps fluid to and from a patient, the valves including a supply valve, a drain valve, a from-patient valve and a to-patient valve is provided. The cam arrangement includes a camshaft and a series of cams connected to the camshaft. The cams are positioned and arranged to toggle back and forth between a first open position for the supply valve and a second open position for the drain valve, a third open position for the from-patient valve and the second open position, and the first open position and a fourth open position for the to-patient valve.
대표청구항▼
The invention claimed is: 1. A system for operating a series of valves in cooperation with a pump that pumps fluid to and from a patient, the valves including a supply valve, a drain valve, a from-patient valve and a to-patient valve, the cam arrangement comprising: a disposable cassette including
The invention claimed is: 1. A system for operating a series of valves in cooperation with a pump that pumps fluid to and from a patient, the valves including a supply valve, a drain valve, a from-patient valve and a to-patient valve, the cam arrangement comprising: a disposable cassette including the supply valve, the drain valve, the from-patient valve and the to-patent valve; a camshaft; and a series of cams connected to the camshaft, the cams positioned and arranged to toggle back and forth between; a first open position for the supply valve and a second open position for the drain valve, a third open position for the from-patient valve and the second open position, and the first open position and a fourth open position for the to-patient valve. 2. The system of claim 1, wherein the first open position is located between the second open position and the fourth open position. 3. The system of claim 1, wherein the cams further define a plurality of positions wherein all the valves are closed between each of: (i) the third open position and the second open position, (ii) the first open position and the second open position, and (iii) the first open position and the fourth open position. 4. The system of claim 1, wherein the cams further define a fifth open position wherein all the supply valve, drain valve, from-patient valve, and to-patient valve are open. 5. The system of claim 4, wherein the fifth open position is located between the third open position and the fourth open position. 6. The system of claim 1, wherein the cams further define a sixth open position for a last-bag valve. 7. The system of claim 6, wherein the fourth open position is located between the first open position and the sixth open position. 8. The system of claim 6, wherein the cams are further positioned and arranged to toggle back and forth between the sixth open position and the fourth open position. 9. The system of claim 1, wherein the fourth open position is arranged via a plurality of the cams that collectively open a flow path that cooperates with a fluid heater. 10. A method of operating a series of valves to pump fluid to and from a patient comprising the steps of: (a) sequentially toggling a camshaft between a first open position for a from-patient valve and a second open position for a drain valve to drain fluid from a patient, the from-patient valve and the drain valve provided in a disposable cassette; and (b) sequentially toggling the camshaft between a third open position for a supply valve and a fourth open position for a to-patient valve to fill the patient with fluid, the supply valve and the to-patient valve provided in a disposable cassette. 11. The method of claim 10, wherein at least one of the steps (a) and (b) further includes intermittently moving to a position wherein all of the valves are closed. 12. The method of claim 10, which includes the step of sequentially toggling the camshaft between the third open position and the second open position to perform a system prime. 13. The method of claim 10, which includes the step of sequentially toggling the camshaft between the third open position and the fourth open position to perform a patient line prime. 14. The method of claim 10, which includes the step of toggling the camshaft between a fifth open position for a last-bag valve and the fourth open position to deliver a final fluid fill to the patient. 15. The method of claim 10, which includes the step of repeating steps (a) and (b) at least one time. 16. The method of claim 10, which includes the step of rotating the camshaft to a position where all the valves are open prior to a mechanical connection between a valve manifold and the camshaft. 17. An automated medical fluid system comprising: a disposable cassette including a series of valves; a camshaft that operates the valves; a motor that drives the camshaft; and a controller that operates with the motor to: sequentially toggle the camshaft between a first open position for a from-patient valve and a second open position for a drain valve to drain fluid from a patient; and sequentially toggle the camshaft between a third open position for a supply valve and a fourth open position for a to-patient valve to fill the patient with fluid. 18. A medical fluid system comprising: a disposable cassette including at least one flexible membrane attached to a rigid piece, the flexible membrane attached to a rigid piece and a plurality of valves; a camshaft that operates the valves; a motor that drives the camshaft; and a processor that operates with the motor. 19. The fluid system of claim 18, wherein the processor operates with the motor to sequentially toggle the camshaft between a first open position for a from-patient valve and a second open position for a drain valve to drain fluid from a patient; and sequentially toggle the camshaft between a third open position for a supply valve and a fourth open position for a to-patient valve to fill the patient with fluid.
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Pastrone John (Los Gatos CA) Chamness Leland D. (Mountain View CA) Fellingham George H. (San Jose CA) Jimison Walter L. (Palo Alto CA), Drive mechanism for disposable fluid infusion pumping cassette.
Ezell Larry O. (Clinton MS) Schmid John (Jackson MS) Tovey Peter (Jackson MS), Failsafe electrohydraulic control system for variable displacement pump.
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Warner Eric A. (Vista CA) Minami Don S. (Monte Sereno CA) Howard Paul L. (Palo Alto CA) Hobson Phillip M. (Los Altos CA), Interlock, latching, and retaining mechanism for an infusion pump.
Bowser John J. (Newark DE) Hyde Christopher T. (Lincoln University PA), Irradiated expanded polytetrafluoroethylene composites, and devices using them, and processes for making them.
Bryant Robert J. (Manchester NH) Bouchard Clement D. (Pembroke NH) Kamen Dean (Bedford NH) Lanigan Richard (Concord NH) Miller Bradley D. (Londonderry NH) Spencer Geoffrey P. (Manchester NH) Vincent , Liquid pumping mechanisms for peritoneal dialysis systems employing fluid pressure.
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Wecker Sheldon M. (Libertyville IL) Abrahamson Kent D. (Libertyville IL) Joyce Thomas P. (Libertyville IL), Solution pumping system with compressible pump cassette.
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Chapman, Paul R.; Childers, Robert W.; Hecht, Gideon; Wellings, Anders, Noise-reducing dialysis systems and methods of reducing noise in dialysis systems.
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