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1. WO2020198030 - FLOW RESTRICTION DEVICES, METHODS, AND SYSTEMS

Publication Number WO/2020/198030
Publication Date 01.10.2020
International Application No. PCT/US2020/023924
International Filing Date 20.03.2020
IPC
F16K 7/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
7Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage
02with tubular diaphragm
04constrictable by external radial force
06by means of a screw-spindle, cam, or other mechanical means
A61B 1/015 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
012characterised by internal passages or accessories therefor
015Control of fluid supply or evacuation
A61M 5/142 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
142Pressure infusion, e.g. using pumps
A61M 5/145 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
142Pressure infusion, e.g. using pumps
145using pressurised reservoirs, e.g. by means of pistons
A61M 5/168 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters
F04B 43/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
43Machines, pumps, or pumping installations having flexible working members
08having tubular flexible members
Applicants
  • NXSTAGE MEDICAL, INC. [US]/[US]
Inventors
  • ZOGLIO, Eric
Agents
  • CATAN, Mark A.
  • DOLINA, George S.
Priority Data
62/822,11722.03.2019US
62/937,90720.11.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FLOW RESTRICTION DEVICES, METHODS, AND SYSTEMS
(FR) DISPOSITIFS, PROCÉDÉS, ET SYSTÈMES DE RESTRICTION DE DÉBIT
Abstract
(EN)
A flow restrictor includes a flexible tube held in a housing and a linear actuator connected through an intermediate link to a distal link via a first revolute joint proximate the linear actuator and a second revolute joint connecting the intermediate and distal links. The distal link has a distal end adjacent the flexible tube and the intermediate and distal links are constrained to move such that when the linear actuator moves the first revolute joint toward the linear actuator, the distal end of the distal link is driven into the side of the tube thereby progressively occluding the flexible tube.
(FR)
L'invention concerne un réducteur de débit comprenant un tube flexible maintenu dans un boîtier et un actionneur linéaire relié par l'intermédiaire d'une liaison intermédiaire à une liaison distale par l'intermédiaire d'une première articulation rotoïde à proximité de l'actionneur linéaire et d'une seconde articulation rotoïde reliant les liaisons intermédiaires et distales. La liaison distale présente une extrémité distale adjacente au tube flexible et les liaisons intermédiaires et distales sont contraintes pour se déplacer de telle sorte que lorsque l'actionneur linéaire déplace la première articulation rotoïde vers l'actionneur linéaire, l'extrémité distale de la liaison distale est entraînée dans le côté du tube, ce qui permet d'occlure progressivement le tube flexible.
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