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1. WO2000041746 - CONTINUOUS RENAL REPLACEMENT THERAPY HEAT LOSS COMPENSATION

Publication Number WO/2000/041746
Publication Date 20.07.2000
International Application No. PCT/US2000/000625
International Filing Date 11.01.2000
IPC
A61M 1/16 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
14Dialysis systems; Artificial kidneys; Blood oxygenators
16with membranes
A61M 1/36 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation
CPC
A61M 1/16
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
14Dialysis systems; Artificial kidneys; Blood oxygenators; ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for haemofiltration, pheris
16with membranes
A61M 1/3621
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; ; Extra-corporeal blood circuits
3621Extra-corporeal blood circuits
A61M 1/3627
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; ; Extra-corporeal blood circuits
3621Extra-corporeal blood circuits
3627Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
A61M 1/3639
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; ; Extra-corporeal blood circuits
3621Extra-corporeal blood circuits
3639Blood pressure control, pressure transducers specially adapted therefor
A61M 1/369
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; ; Extra-corporeal blood circuits
369Temperature treatment
A61M 2209/082
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2209Ancillary equipment
08Supports for equipment
082Mounting brackets, arm supports for equipment
Applicants
  • GAMBRO, INC. [US/US]; Patent Department 10810 Collins Ave. Lakewood, CO 80215, US
  • HOSPAL INDUSTRIE [FR/FR]; Patent Department 7 Avenue Linel Terray F-69883 Meyzieu Cedex, FR
Inventors
  • FRESSINET, Jean-Louis; FR
  • LITTLE, James, S., Jr.; US
  • GREENE, David, B.; US
  • FRUGIER, Alain; FR
Agents
  • WINSOR, Bruce, R. ; Patent Department 10810 Collins Avenue Lakewood, CO 80215, US
Priority Data
60/115,58312.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONTINUOUS RENAL REPLACEMENT THERAPY HEAT LOSS COMPENSATION
(FR) COMPENSATION DE PERTE DE CHALEUR PENDANT UNE THERAPIE RENALE CONTINUE DE REMPLACEMENT
Abstract
(EN)
An integrated CRRT method and apparatus (10) incorporates steps and means for compensating for heat loss from blood in an extracorporeal circuit. A blood warmer (20) is designed to engage and hold a disposable blood tube segment to transfer heat at a closely controlled temperature to blood flowing in the disposable blood tube segment. Another significant aspect of the present invention is a blood tube segment for engagement with the blood warmer (20) is located in downstream of a dialyzer and upstream of a venous pressure monitor (15), an air bubble detector (90) and a venous line clamp (95). The disposable blood tube segment may be selectively connected when heat loss compensation is required and left disconnected when heat loss compensation is not required.
(FR)
L'invention concerne une technique et un appareil (10) de thérapie rénale continue de remplacement (CRRT), suivant des étapes et utilisant des moyens pour compenser une perte de chaleur dans du sang circulant dans un circuit extracorporel. Un réchauffeur de sang (20) est conçu de manière à venir en contact avec un segment jetable de tube de sang et à le maintenir, afin de transférer de la chaleur, selon une température étroitement surveillée, au sang s'écoulant dans ledit segment de tube. Selon un autre aspect significatif, l'invention concerne un segment de tube de sang conçu pour venir en contact avec le réchauffeur de sang (20) situé en aval d'un dialyseur et en amont d'un moniteur (15) de pression veineuse, un détecteur de bulle d'air (90), et un clamp (95) de ligne veineuse. Le segment de tube jetable peut être sélectivement connecté lorsqu'il est nécessaire de compenser une perte de chaleur, et déconnecté lorsqu'il n'est pas nécessaire de compenser ladite perte de chaleur.
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