Medical fluid pump valve integrity test methods and systems
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-037/00
A61M-001/16
A61M-001/34
A61M-001/36
A61M-001/28
출원번호
US-0249603
(2011-09-30)
등록번호
US-9072831
(2015-07-07)
발명자
/ 주소
Kelly, Thomas
Childers, Robert W.
Busby, Don
Roger, Rodolfo
El Sayyid, Waleed Mutasem
Din, Shahid
출원인 / 주소
Baxter International Inc.
대리인 / 주소
K&L Gates LLP
인용정보
피인용 횟수 :
6인용 특허 :
104
초록▼
A valve integrity method for a medical fluid pump includes pumping fluid into the medical fluid pump while an outlet valve is closed and an inlet valve is open, closing the inlet valve while the outlet valve is closed, attempting to pump fluid out of the medical fluid pump while the inlet valve and
A valve integrity method for a medical fluid pump includes pumping fluid into the medical fluid pump while an outlet valve is closed and an inlet valve is open, closing the inlet valve while the outlet valve is closed, attempting to pump fluid out of the medical fluid pump while the inlet valve and the outlet valve are closed, and determining that at least one of the valves is leaking if a change in medical fluid volume within the medical fluid pump is detected.
대표청구항▼
1. A valve integrity method for a medical fluid pump placed in line with an inlet valve and an outlet valve, the method comprising: (a) pumping fluid into the medical fluid pump while the outlet valve is closed and the inlet valve is open;(b) closing the inlet valve while the outlet valve is closed;
1. A valve integrity method for a medical fluid pump placed in line with an inlet valve and an outlet valve, the method comprising: (a) pumping fluid into the medical fluid pump while the outlet valve is closed and the inlet valve is open;(b) closing the inlet valve while the outlet valve is closed;(c) attempting to pump fluid out of the medical fluid pump while the inlet valve and the outlet valve are closed by applying a pressure that is less than a maximum possible pressure so as not to damage the medical fluid pump; and(d) determining that at least one of the valves is leaking if a change in medical fluid volume within the medical fluid pump is detected. 2. The valve integrity method of claim 1, which includes using a volumetric balancing device to detect whether the volume change within the medical fluid pump occurs. 3. The valve integrity method of claim 1, which includes using a pressure volume relationship to detect whether the volume change within the medical fluid pump occurs. 4. The valve integrity method of claim 1, which includes performing (a) to (d) periodically throughout a medical fluid therapy. 5. The valve integrity method of claim 1, which includes performing (a) to (d) for a therapy selected from the group consisting of: hemodialysis, hemofiltration, hemodiafiltration, peritoneal dialysis and any combination thereof. 6. The valve integrity method of claim 1, which includes detecting whether a flexible membrane positioned in the medical fluid pump moves. 7. The valve integrity method of claim 1, which includes attempting to pump medical fluid out of a pump chamber via a pump actuator. 8. The valve integrity method of claim 1, which includes one of (i) issuing an alarm if the determination is a change in medical fluid volume, and (ii) stopping the medical fluid pump from pumping medical fluid if the determination is a change in medical fluid volume. 9. The valve integrity method of claim 1, which includes performing (a) to (d) at the beginning of a medical fluid therapy. 10. The valve integrity method of claim 1, which includes performing (a) to (d) on a plurality of medical fluid pumps of a machine, each of the plurality of medical fluid pumps including an inlet valve and an outlet valve. 11. A medical fluid machine comprising: a medical fluid pump;an inlet valve and an outlet valve each in fluid communication with the medical fluid pump;a volume measuring device configured to detect a medical fluid volume within the medical fluid pump; anda controller configured to (i) pump medical fluid into the medical fluid pump with the outlet valve closed and the inlet valve open, (ii) close the inlet valve while the outlet valve is closed; (iii) attempt to pump medical fluid out of the medical fluid pump while the inlet valve and the outlet valve are closed by applying a pressure that is less than a maximum possible pressure so as not to damage the medical fluid pump; and (iv) determine, via the volume measuring device, that at least one of the valves is leaking if a change in medical fluid volume within the medical fluid pump is detected. 12. The medical fluid machine of claim 11, wherein the volume measuring device includes a volumetric reference chamber and an ideal gas law relationship manipulated by the controller. 13. The medical fluid machine of claim 11, wherein the volume measuring device includes a volumetric balancing device. 14. The medical fluid machine of claim 11, wherein the medical fluid machine is constructed to perform a therapy selected from the group consisting of: hemodialysis, hemofiltration, hemodiafiltration, peritoneal dialysis and any combination thereof. 15. The medical fluid machine of claim 11, wherein the medical fluid pump includes a pump chamber and a flexible membrane positioned within the pump chamber. 16. The medical fluid machine of claim 11, which includes a pump actuator, and the controller is configured to attempt to pump medical fluid out of the pump chamber via the pump actuator. 17. The medical fluid machine of claim 11, wherein the controller is configured to one of (i) issue an alarm if the determination is a change in medical fluid volume, and (ii) stop the medical fluid pump from pumping if the determination is a change in medical fluid volume. 18. The medical fluid machine of claim 11, wherein the controller is configured to perform (i) to (iv) at the beginning of a medical fluid therapy. 19. The medical fluid machine of claim 11, wherein the controller is configured to perform (i) to (iv) periodically throughout a medical fluid therapy. 20. The medical fluid machine of claim 11, which includes a plurality of medical fluid pumps each including an inlet valve and an outlet valve, wherein the controller is configured to perform (i) to (iv) on the plurality of medical fluid pumps.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (104)
Lipps Bennie J. (Walnut Creek CA) Landau Julian I. (Concord CA), Apparatus and method for automatically controlling hemodialysis at a pre-selected ultrafiltration rate.
Allan Jonathan M. (Portland OR) Burton Richard J. (Tigard OR) Jurock Volker (Rodgau DEX), Apparatus and method for controlling ultrafiltration during hemodialysis.
Allan Jonathan M. (Portland OR) Burton Richard J. (Tigard OR) Jurock Volker (Rodgau DEX), Apparatus and method for controlling ultrafiltration during hemodialysis.
Dahlberg Bengt A. G. (Veberd SEX) Jeppsson Jan-Bertil (Lomma SEX) Ohlsson Lars I. (Asarum SEX) Simonsson Tord B. (Landskrona SEX), Apparatus for the measurement of fluid flow.
Bene Bernard (Irigny FRX) Chevallet Jacques (Serezin du Rhone FRX), Artificial kidney and method for adjusting a concentration of substance in blood using thereof.
Papanek Thomas H. (Oakland CA) Egler Mark S. (Boston MA) Landau Julian I. (Concord CA), Automated diaphragm apparatus and method for controlling negative pressure hemodialysis treatment.
Burbank, Jeffrey H.; Brugger, James M.; Treu, Dennis M.; Finch, Jr., C. David, Blood treatment systems and methods that maintain sterile extracorporeal processing conditions.
Kerns Ralph M. (Laguna Hills CA) Rubalcaba ; Jr. Bernardino (Laguna Beach CA) Bobo Donald E. (Fountain Valley CA) Rake Kenneth W. (Laguna Niguel CA) Weyant Robert R. (Claremont CA), Centrally managed modular infusion pump system.
Wamsiedler Ralf (Oberursel DEX) Wojke Ralf (Frankfurt DEX) Pieper Walter (Florstadt DEX) Christmann-Braun Horst (Kelkheim DEX), Diaphragm gage for measuring the pressure of a fluid.
Burbank, Jeffrey H.; Brugger, James M; Treu, Dennis M., Extracorporeal circuits for performing hemofiltration employing pressure sensing without an air interface.
Treu Dennis M. ; Burbank Jeffrey H. ; Brugger James M., Flow-through peritoneal dialysis systems and methods with on-line dialysis solution regeneration.
Malmgren Arthur L. (386 NW. 112th. St. Seattle WA 98177) Johnson Bryan E. (21708 80th W. Edmonds WA 98020), Fluid metering and mixing device having inlet and outlet valves.
Burbank, Jeffrey H.; Brugger, James M.; Treu, Dennis M., Fluid processing systems and methods using extracorporeal fluid flow panels oriented within a cartridge.
Kitaevich Yuli (Milford OH) Hemasilpin Nat (Fairfield OH) Marchevsky J. Gabriel (Cincinnati OH) Bissler John J. (Cincinnati OH) Benzing ; III George (Cincinnati OH) McEnery Paul T. (Cincinnati OH), Hemofiltration system and method.
Shaldon Stanley (Montpellier CA FRX) Gullberg Claes-Ake (Covina CA) Larsson Lars-Ake (Lddekpinge SEX), Hemofiltration system and safety system therefor.
Vogler Tina C. (South Orange NJ) Asher William J. (Fanwood NJ), Liquid membrane capsule systems resistant to coalescence by means of an irreversible coating.
Brugger, James M.; Burbank, Jeffrey H.; Treu, Dennis M., Method for performing renal replacement therapy including producing sterile replacement fluid in a renal replacement therapy unit.
Pedrini, Luciano; Wiesen, Gerhard, Method for the purification of blood by means of hemodialysis and/or hemofiltration and apparatus for performing said method.
Tsuji Tsuyoshi (Saitama JPX) Satoh Masaaki (Tokyo JPX) Yunoki Masayuki (Saitama JPX), Method of controlling amount of removed water by ultrafiltration and control device for controlling amount of removed wa.
Lane Leslie A. (Santa Clara CA) Lybeck Lynn V. (Moss Beach CA) Perloff David S. (Sunnyvale CA) Kumagi Shoji (Santa Clara CA), Process control interface with simultaneously displayed three level dynamic menu.
Faict Dirk,BEX ; Chen Chi J. ; Peluso Francesco,BEX ; Childers Robert Warren ; Balteau Patrick,BEX ; Eerlingen Vital,BEX ; Emerson Paul Frederick ; Colleran Lisa, System and method for providing sterile fluids for admixed solutions in automated peritoneal dialysis.
Burbank, Jeffrey H.; Brugger, James M.; Treu, Dennis M.; Finch, Jr., C. David; Fulkerson, Barry N.; White, Steven A., Systems and methods for performing blood processing and/or fluid exchange procedures.
Truitt Lori A. ; Corbin ; III Frank ; Lobdell Donn D. ; Miller Douglas P. ; Manica Keith ; Eilers George J. ; Johnson Steven H. ; Leppert Lawrence L., Technique for extracorporeal treatment of blood.
Norris, Michael G.; Scarpaci, Jacob W.; Bryant, Jr., Robert J.; Spencer, Geoffrey P.; Hibbard, David J.; Dale, James D.; Kerwin, John M.; Coll, Andrew S.; Beavers, David A.; McGill, David W.; Helmore, Simon C.; Doherty, David B.; Bolton, Edgar J.; Yoo, Jinsun; Girouard, Paul G.; Karol, Daniel S.; Singer, Daniel B.; Rushlow, Joseph P., Medical treatment system and methods using a plurality of fluid lines.
Norris, Michael G.; Scarpaci, Jacob W.; Bryant, Jr., Robert J.; Spencer, Geoffrey P.; Hibbard, David J.; Dale, James D.; Kerwin, John M.; Coll, Andrew S.; Beavers, David A.; McGill, David W.; Helmore, Simon C.; Doherty, David B.; Bolton, Edgar J.; Yoo, Jinsun; Girouard, Paul G.; Karol, Daniel S.; Singer, Daniel B.; Rushlow, Joseph P., Medical treatment system and methods using a plurality of fluid lines.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.