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1. (WO1991009229) ACCURATE PERISTALTIC PUMP
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/009229 International Application No.: PCT/US1990/002336
Publication Date: 27.06.1991 International Filing Date: 30.04.1990
IPC:
A61M 5/142 (2006.01) ,F04B 43/08 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES 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
5
Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
14
Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
142
Pressure infusion, e.g. using pumps
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
43
Machines, pumps, or pumping installations having flexible working members
08
having tubular flexible members
Applicants:
BAXTER INTERNATIONAL INC. [US/US]; One Baxter Parkway Deerfield, IL 60015, US
Inventors:
D'SILVA, Edmund, D.; US
Agent:
SCHAAFSMA, Paul, E. ; One Baxter Parkway Deerfield, IL 60015, US
Priority Data:
451,26914.12.1989US
Title (EN) ACCURATE PERISTALTIC PUMP
(FR) POMPE PERISTALTIQUE DE PRECISION
Abstract:
(EN) A method and device are provided for infusing a fluid (27) into a patient via a tubing (26). A peristaltic pumping apparatus (10) is provided which applies a pumping action to the tubing (26). A linear variable differential transformer (54) measures the diameter of the tubing (26) subject to the pumping action. The diameter of the tubing (26) is measured at various times and changes in the diameter of the tubing (26) are utilized to adjust the pumping action on the tubing (26).
(FR) Un procédé et un dispositif d'infusion d'un liquide (27) dans un patient par l'intermédiaire d'un tubage (26). Un appareil de pompage péristaltique (10) exerce une action de pompage dans le tubage (26). Un transformateur différentiel linéaire variable (54) mesure le diamètre du tubage (26) soumis à l'action de pompage. Le diamètre du tubage (26) est mesuré à des moments différents et les modifications du diamètre du tubage (26) sont utilisées pour régler l'action de pompage sur le tubage (26).
Designated States: AU, CA, JP, NO
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO19913146EP0458910JPH06510918CA2045609AU1990056662