Medical fluid therapy flow control systems and methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-037/00
C02F-001/44
C02F-001/00
B01D-024/38
B01D-029/00
출원번호
UP-0738446
(2003-12-16)
등록번호
US-7744553
(2010-07-19)
발명자
/ 주소
Kelly, Thomas D.
El Sayyid, Waleed M.
출원인 / 주소
Baxter International Inc.
Baxter Healthcare S.A.
대리인 / 주소
K&L Gates LLP
인용정보
피인용 횟수 :
69인용 특허 :
129
초록▼
Systems and methods for improving medical fluid delivery systems, such as hemofiltration (“HF”) and hemodiafiltration (“HDF”) are provided. In first embodiments, systems and methods for selectively performing pre- and postdilution HF and HDF clearance modes is provided. I
Systems and methods for improving medical fluid delivery systems, such as hemofiltration (“HF”) and hemodiafiltration (“HDF”) are provided. In first embodiments, systems and methods for selectively performing pre- and postdilution HF and HDF clearance modes is provided. In other embodiments, systems and methods for providing prime bolus and rinseback fluid volumes before, during and/or after HF and HDF therapies are provided. In further embodiments, improved systems and methods for removing ultrafiltrate from the patient are provided. Still further, improved filtration configurations and methods are provided.
대표청구항▼
The invention is claimed is: 1. A medical fluid system comprising: a medical fluid flow path having a medical fluid supply, a first pump operable in a non-isolated condition to pump medical fluid from the supply to an extracorporeal circuit/blood filtering device and a second pump operable to pull
The invention is claimed is: 1. A medical fluid system comprising: a medical fluid flow path having a medical fluid supply, a first pump operable in a non-isolated condition to pump medical fluid from the supply to an extracorporeal circuit/blood filtering device and a second pump operable to pull fluid from the blood filtering device; at least one ultrafilter upstream of the blood filtering device; a flowmeter in fluid communication with a rinse outlet of the at least one ultrafilter; an apparatus operable to isolate the blood filtering device from the rest of the medical fluid flow path to form an isolated condition; and a control scheme programmed to (a) receive a volume from an entry by an operator when commencing delivery of the volume and (b) deliver the volume of fluid to the extracorporeal circuit by commanding: (i) the isolating apparatus to isolate the blood filtering device and (ii) the first pump to concurrently deliver the volume of fluid from the medical fluid supply to the extracorporeal circuit. 2. The medical fluid system of claim 1, wherein the fluid volume is a bolus volume, the control scheme configured to deliver the bolus volume during therapy to help prevent a patient from becoming hypotensive. 3. The medical fluid system of claim 2, wherein the fluid volume is a bolus volume, and wherein the control scheme is programmed to receive an operator input to commence delivery of the bolus volume. 4. The medical fluid system of claim 2, wherein the fluid volume is a bolus volume, and wherein the control scheme is programmed to receive an amount of the bolus volume prior to commencement of therapy. 5. The medical fluid system of claim 2, wherein the fluid volume is a bolus volume, and wherein the control scheme is programmed upon a biosensor input to commence delivery of the bolus volume. 6. The medical fluid system of claim 5, wherein the biosensor is selected from the group consisting of a hematocrit sensor, a blood volume sensor, an electrolytic sensor, an oxygen sensor and any combination thereof. 7. The medical fluid system of claim 1, wherein the fluid volume is a rinseback volume, the control scheme configured to deliver the rinseback volume at the end of therapy to rinse blood in the extracorporeal circuit back to a patient. 8. The medical fluid system of claim 1, wherein the apparatus operable to isolate comprises a three-way valve allowing selective delivery of the medical fluid supply to the blood filtering device and to the extracorporeal circuit. 9. A medical fluid system, comprising: a medical fluid flow path having a medical fluid supply, a first pump operable to pump medical fluid from the supply to an extracorporeal circuit/blood filtering device and a second pump operable to pull fluid from the blood filtering device; at least one ultrafilter upstream of the blood filtering device; an apparatus operable to isolate the blood filtering device from the rest of the medical fluid flow path to form an isolated condition; and a control scheme programmed to (a) receive an amount of a volume prior to commencement of therapy and (b) deliver the volume of fluid to the extracorporeal circuit as a prime, a rinseback or a bolus by commanding: (i) the isolating apparatus to isolate the blood filtering device and (ii) the first pump to concurrently deliver the volume of fluid from the medical fluid supply. 10. The medical fluid system of claim 9, wherein the control scheme is programmed to receive a volume from an entry by an operator when commencing delivery of the volume. 11. The medical fluid system of claim 9, wherein the control scheme is programmed to deliver a rinseback volume until a threshold amount of blood is no longer sensed in the extracorporeal circuit. 12. The medical fluid system of claim 9, wherein the fluid volume is a prime, the control scheme configured to deliver the prime at the beginning of the therapy to remove air from the extracorporeal circuit. 13. The medical fluid system of claim 12, further comprising a flowmeter in fluid communication with the medical fluid flow path and the at least one ultrafilter. 14. The medical fluid system of claim 9, further comprising a third pump operable to receive the medical fluid from the apparatus operable to isolate and to pump the medical fluid to the extracorporeal circuit. 15. The medical fluid system of claim 9, wherein the apparatus operable to isolate comprises a valve and a three-way valve. 16. A medical fluid system comprising: a medical fluid flow path having a medical fluid supply, a first pump operable in a non-isolated condition to pump medical fluid from the supply to an extracorporeal circuit and a blood filtering device, a second pump operable to pull fluid from the blood filtering device and a third pump operably connected to the extracorporeal circuit; at least one ultrafilter upstream of the blood filtering device and a flowmeter in fluid communication with a rinse outlet of the at least one ultrafilter and the medical fluid flow path; an apparatus operable to isolate the blood filtering device from the rest of the medical fluid flow path to form an isolated condition; and a control scheme configured for periodic flow from the rinse outlet of the at least one ultrafilter to a drain, the control scheme programmed to deliver a volume of fluid to the extracorporeal circuit by commanding: (i) the isolating apparatus to isolate the blood filtering device and (ii) the third pump to deliver the volume of fluid from the apparatus operable to isolate to the extracorporeal circuit. 17. The medical fluid system of claim 16, wherein the control scheme is programmed to deliver the prime until air is no longer sensed in the extracorporeal circuit. 18. The medical fluid system of claim 16, wherein the system is programmed to perform hemodiafiltration and the isolating apparatus includes first and second valves placed upstream and downstream of the blood filtering device. 19. The medical fluid system of claim 16, wherein the system is programmed to perform hemofiltration and the isolating apparatus includes a valve placed downstream of the blood filtering device. 20. The medical fluid system of claim 16, wherein the isolating apparatus includes a bypass valve operable to bypass fresh medical fluid around the blood filtering device in the medical fluid flow path. 21. The medical fluid system of claim 16, wherein the medical fluid flow path is configured to selectively deliver medical fluid to the extracorporeal circuit upstream or downstream of the blood filtering device. 22. The medical fluid system of claim 16, wherein the rinse outlet of the at least one ultrafilter is in operable communication with the flow meter.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (129)
Yang Ming-Tung (No. 4-3 ; Lane 97 ; Lung Chuan St. Panchiao ; Taipei Hsien TWX), Adjustable-type additive pressure windshield wiper.
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.
Heath Gary B. (Aurora CO) Palsulich William G. (Boulder CO) Manica Keith J. (Littleton CO) Swan ; Jr. Jack C. (Boulder CO), Apparatus for use with fluid flow transfer device.
Gortz Norman (4985 Paseo De Vega Irvine CA 92715) Huson Andrew S. (13841 E. Tustin Dr. Tustin CA 92680) MacIntyre Robert M. (2421 E. Ball Rd. Anaheim CA 92806), Automated cleaning method for dialyzers.
Fischel Halbert (5301 Newcastle ; No. 16 Encino CA 91316), Blood leak detector comparing intensities of high absorption band and low absorption band of a single beam of light pass.
Ishihara Toshikazu (Yatagawa Park House C ; 10-7 ; Daiko-cho Aichi JPX) Kitano Tomoyuki (Yatagawa Park House C ; 10-7 ; Daiko-cho Aichi JPX) Maeda Kenji (Yatagawa Park House C ; 10-7 ; Daiko-cho Higa, Blood purification apparatus.
Burbank, Jeffrey H.; Brugger, James M.; Treu, Dennis M.; Finch, Jr., C. David, Blood treatment systems and methods that maintain sterile extracorporeal processing conditions.
Quang Minh B. (Rathausmarkt 2d 2406 Stockelsdorf DEX) Frank Eberhard (W\rth Weg 18 7910 Neu-Ulm 8 DEX), Devices for de-aerating liquids flowing in medical liquid systems.
Irie Yasubumi (Funabashi JPX) Kurano Kenichi (Tokyo JPX) Suzuki Toshikatsu (Tokyo JPX) Ishizuka Hiroaki (Tokyo JPX) Uehara Hirokazu (Tokyo JPX) Ohwaki Shingo (Tokyo JPX), Dialysis system for returning blood in the system after the completion of dialysis.
Howard David B. (4620 Timberlane Rd. Crystal Lake IL 68675) Kenley Rodney (816 Fairway Libertyville IL 60048) Berry Dennis (209 S. Shannon Dr. Woodstock IL 60098) Keshaviah Prakash (10840 41st Ave. N, Dialyzer clearance check system.
Amiot Bruce P. (St. Louis Park MN) Fuller Larry E. (Minnetonka MN) Martinez Felix J. (Plymouth MN) Cosentino Louis C. (Wayzata MN) Harm William H. (Columbia Heights MN) Nelson Wayne I. (Brooklyn Park, Dialyzer reuse machine.
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.
Weitzel, William Frederick; Humes, H. David; Paganini, Emil Presley; Buffington, Deborah Ann; Funke, Angela J., Extracorporeal fluid circuit and related methods.
Treu Dennis M. ; Burbank Jeffrey H. ; Brugger James M., Flow-through peritoneal dialysis systems and methods with on-line dialysis solution regeneration.
Burbank, Jeffrey H.; Brugger, James M.; Treu, Dennis M., Fluid processing systems and methods using extracorporeal fluid flow panels oriented within a cartridge.
Issautier Grald (Domaine des Alpilles - Immeuble le Saint Rmy 397 ; Corniche Kennedy 13007 - Marseille FRX), Haemodialysis device automatically monitoring loss of weight.
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.
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.
Kenley Rodney S. (Libertyville IL) Treu Dennis M. (Gurnee IL) Peter ; Jr. Frederick H. (Barrington IL) Feldsein Thomas M. (Palatine IL) Pawlak Kenneth E. (Vernon Hills IL) Adolf Wayne F. (Mt. Prospec, Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof.
Chevallet Jacques (Serezin du Rhone FRX), Method and apparatus for controlling the quantities of liquid circulating in the dialysis liquid circuit of an artificia.
Ash Stephen R. (Lafayette IN) Echard Terrance G. (West Lafayette IN), Method and apparatus for determining a rate of flow of blood for an extracorporeal blood therapy instrument.
Hirel Jean C. (Villebon-sur-Yvette FRX) Goupy Francois M. (Paris FRX) Bloch Pierre G. (Sceaux FRX) Degoulet Patrice E. (Paris FRX), Method and apparatus for regulating haemodialysis conditions.
Eigendorf Hans-Gnter (Bad Saarow-Pieskow DEX), Method and assembly for the on-line flushing and filling of an extracorporeal blood circulation system of dialysis machi.
Fentress, Philip W.; Kenley, Rodney S.; Schnell, William J., Method for disinfecting, for reuse, separation devices for blood and associated fluid lines.
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.
Hart Stephen (Hants GB2) Pascale Frank R. (Glen Cove NY) Matkovich Vlado I. (Glen Cove NY), Method for processing a biological fluid including leukocyte removal in an extracorporeal circuit.
Pedrini, Luciano; Wiesen, Gerhard, Method for the purification of blood by means of hemodialysis and/or hemofiltration and apparatus for performing said method.
Heath Gary B. (Aurora CO) Palsulich William G. (Boulder CO) Manica Keith J. (Littleton CO) Swan ; Jr. Jack C. (Boulder CO), Method of operating a fluid flow transfer device.
Kenley Rodney S. (Libertyville IL) Matthews Dawn (Grayslake IL) Treu Dennis M. (Gurnee IL) Peter ; Jr. Frederick H. (Barrington IL) Feldsein Thomas M. (Palatine IL), Method of rinsing back blood to hemodialysis patient.
Zanger Frank (Hayward CA) Surber Tim (San Leandro CA) Lehmer Donald E. (Berkeley CA), Pressure transducer magnetically-coupled interface complementing minimal diaphragm movement during operation.
Ogawa Francis T. (Lakewood CO) Eilers George J. (Evergreen CO) Manes Michael R. (Littleton CO) Lobdell Donn D. (Englewood CO) Boucher Terry D. (Littleton CO), Remote conductivity sensor using square wave excitation.
Hlavinka Dennis J. (Lakewood CO) Johnson Steven H. (Lakewood CO) Zook James L. (Denver CO), Rinsing, cleaning and disinfecting dialysate preparation and supply apparatus.
Jonsson Lennart U. P. (Furulund SEX) Carlsson Per-Olov A. V. (Sosdala SEX) Jonsson Dan (Lund SEX) Jonsson Sven (Staffanstorp SEX) Knutsson Stefan L. (Bjarred SEX) Tryggvason Ragnar (Loddekopinge SEX), System for preparing a fluid intended for a medical procedure by mixing at least one concentrate in powder form with wat.
Clarke Rolf W. (Balboa Island CA) Balding David P. (Mission Viejo CA) Gordon Lucas S. (Lagune Beach CA), Venous reservoir bag with integral high-efficiency bubble removal system.
Sutherland Karl M. (Laguna Hills CA) Patterson William R. (Long Beach CA), Venous reservoir with improved inlet configuration and integral screen for bubble removal.
Grant, Kevin L.; Dale, James D.; Wilt, Michael J.; Demers, Jason A.; Collins, David E.; Tracey, Brian D., Blood circuit assembly for a hemodialysis system.
Grant, Kevin L.; Dale, James D.; Wilt, Michael J.; Demers, Jason A.; Collins, David E.; Tracey, Brian D., Blood circuit assembly for a hemodialysis system.
Wilt, Michael J.; van der Merwe, Dirk A.; Ballantyne, Todd A.; Grant, Kevin L.; Rosse, Jonathan P.; Flynn, Catharine N.; Yee, Brian K., Blood treatment systems and methods.
Hogard, Michael Edward; Lingam, Gopi; Hu, Dean; Maniam, Balaji M.; Ritson, James; Uchida, Andy H.; Stienmier, John David; McGregor, Paul David, Dialysis system and methods.
Hogard, Michael Edward; Lingam, Gopi; Hu, Dean; Maniam, Balaji M.; Ritson, James; Uchida, Andy H.; Stienmier, John David; McGregor, Paul David, Dialysis system and methods.
Hogard, Michael Edward; Lingam, Gopi; Hu, Dean; Maniam, Balaji M.; Ritson, James; Uchida, Andy H.; Stienmier, John David; McGregor, Paul David, Dialysis system and methods.
Grant, Kevin L.; Demers, Jason A.; Dale, James D.; Chawan, Arun D.; Collins, David E., Dialyzer cartridge mounting arrangement for a hemodialysis system.
Tracey, Brian D.; Gray, Larry B.; Demers, Jason A.; Dale, James D.; Perry, N. Christopher; Wilt, Michael J.; Leonard, Scott A., Fluid pumping systems, devices and methods.
Tracey, Brian; Gray, Larry B.; Demers, Jason A.; Dale, James D.; Perry, N. Christopher; Wilt, Michael J.; Leonard, Scott A., Fluid pumping systems, devices and methods.
Grant, Kevin L.; Wilt, Michael J.; Tracey, Brian D.; Rudolf, Brett A.; Collins, David E.; Gustin, Lisa A.; Dale, James D.; Bodwell, Jesse T., Hemodialysis system.
Kelly, Thomas; Childers, Robert W.; Busby, Don; Roger, Rodolfo; El Sayyid, Waleed Mutasem; Din, Shahid, Hemodialysis system including a disposable cassette.
Kelly, Thomas; Childers, Robert W.; Busby, Don; Roger, Rodolfo; El Sayyid, Waleed Mutasem; Din, Shahid, Hemodialysis system including a disposable cassette.
Kamen, Dean; Demers, Jason A.; Wilt, Michael J.; Grant, Kevin L.; Prescott, Shannon; Collins, David E., Modular assembly for a portable hemodialysis system.
Kamen, Dean; Perry, N. Christopher; Demers, Jason A.; Tracey, Brian D.; Chawan, Arun D.; Grant, Kevin L., Sensor apparatus systems, devices and methods.
Kamen, Dean; Perry, N. Christopher; Demers, Jason A.; Tracey, Brian D.; Chawan, Arun D.; Grant, Kevin L., Sensor apparatus systems, devices and methods.
Wegener, Christopher J.; Weasler, Marc N.; Kusters, Benjamin E.; Boggs, Daniel R.; Min, Kyungyoon, Systems and methods of controlling fouling during a filtration procedure.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.