CA2235720C - Dispositif de regulation du debit d'un liquide - Google Patents

Dispositif de regulation du debit d'un liquide Download PDF

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Publication number
CA2235720C
CA2235720C CA002235720A CA2235720A CA2235720C CA 2235720 C CA2235720 C CA 2235720C CA 002235720 A CA002235720 A CA 002235720A CA 2235720 A CA2235720 A CA 2235720A CA 2235720 C CA2235720 C CA 2235720C
Authority
CA
Canada
Prior art keywords
fluid
chamber
flow
level
region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002235720A
Other languages
English (en)
Other versions
CA2235720A1 (fr
Inventor
Phillip H. Darling, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/674,552 external-priority patent/US5730730A/en
Application filed by Individual filed Critical Individual
Publication of CA2235720A1 publication Critical patent/CA2235720A1/fr
Application granted granted Critical
Publication of CA2235720C publication Critical patent/CA2235720C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—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
    • A61M5/00—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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/1411—Drip chambers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—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
    • A61M5/00—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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804—Flow controllers
    • A61M5/16818—Flow controllers by changing the height of the reservoir
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—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
    • A61M5/00—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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16877—Adjusting flow; Devices for setting a flow rate
    • A61M5/16881—Regulating valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
    • A61M2205/3382—Upper level detectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—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
    • A61M5/00—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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
    • A61M5/40—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 with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir

Landscapes

  • Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Anesthesiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Flow Control (AREA)

Abstract

Dispositif de régulation du débit d'un liquide comprenant une première chambre (60) ventilée de liquide, dont une extrémité supérieure d'entrée de liquide est pourvue d'une pointe creuse (46). Un obturateur (70) flottant dans la première chambre arrête la pénétration dans ladite chambre du liquide provenant d'un réservoir de liquide (12), ce qui crée une pression constante. Une extrémité inférieure de la première chambre est reliée, par l'intermédiaire d'un régulateur de débit (66) à une extrémité supérieure d'entrée d'une deuxième chambre (62) ventilée de goutte-à-goutte, dont l'extrémité inférieure est conçue pour être accouplée à un tube d'évacuation. Un deuxième obturateur (140) flottant librement dans la deuxième chambre, prévient la pénétration dans le tube d'évacuation du liquide provenant de ladite chambre, quand le niveau du liquide dans ladite deuxième chambre est égal ou inférieur à un niveau minimum prédéterminé et prévient la pénétration du liquide dans la deuxième chambre quand le niveau de liquide dans ladite chambre atteint un niveau prédéterminé.
CA002235720A 1995-09-29 1996-09-24 Dispositif de regulation du debit d'un liquide Expired - Fee Related CA2235720C (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US463495P 1995-09-29 1995-09-29
US60/004,634 1995-09-29
US08/674,552 1996-07-01
US08/674,552 US5730730A (en) 1995-09-29 1996-07-01 Liquid flow rate control device
US71788296A 1996-09-23 1996-09-23
US08/717,882 1996-09-23
PCT/US1996/015250 WO1997011729A1 (fr) 1995-09-29 1996-09-24 Dispositif de regulation du debit d'un liquide

Publications (2)

Publication Number Publication Date
CA2235720A1 CA2235720A1 (fr) 1997-04-03
CA2235720C true CA2235720C (fr) 2002-08-06

Family

ID=27357676

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002235720A Expired - Fee Related CA2235720C (fr) 1995-09-29 1996-09-24 Dispositif de regulation du debit d'un liquide

Country Status (4)

Country Link
EP (1) EP0862470A4 (fr)
AU (1) AU723789B2 (fr)
CA (1) CA2235720C (fr)
WO (1) WO1997011729A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9731070B2 (en) 2014-06-30 2017-08-15 Carefusion 303, Inc. Passive start drip chamber
EP3710078A1 (fr) * 2017-11-14 2020-09-23 Fresenius Medical Care Holdings, Inc. Élimination de microbulles à travers des sites de nucléation de chambre d'égouttage
CN109908427A (zh) * 2019-04-19 2019-06-21 长春市亿健科技有限公司 一种输液装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667464A (en) * 1970-09-04 1972-06-06 Lawrence M Alligood Jr Fluid dispensing device
US3929157A (en) 1974-06-17 1975-12-30 Juan R Serur Fluid flow regulator
US3931818A (en) * 1974-07-22 1976-01-13 Michael Goldowsky Liquid administration apparatus
IL45485A (en) * 1974-08-18 1976-10-31 Yarden Medical Eng Ltd Constant-flow device for intravenous infusion set
US3989043A (en) * 1974-12-23 1976-11-02 John Dimeff Automatic flow control and automatic shut off for intravenous feeders
US4096879A (en) * 1976-08-19 1978-06-27 International Biomedical Laboratories, Inc. Adjustable fluid flow regulator
US4269222A (en) * 1979-03-27 1981-05-26 Palti Yoram Prof Constant flow device
GB2089944A (en) * 1980-12-23 1982-06-30 Wallace Ltd H G Flow Regulating Device
US4340050A (en) 1980-12-29 1982-07-20 Delmed Inc. Medical fluid flow rate indicating/controlling device
US4588396A (en) 1982-10-22 1986-05-13 Stroebel Maurice G Apparatus for gravity feed of liquid under constant hydrostatic pressure
US4807660A (en) 1984-07-13 1989-02-28 Aslanian Jerry L Flow control device for administration of intravenous fluids
US4802506A (en) 1984-07-13 1989-02-07 Aslanian Jerry L Flow control device for administration of intravenous fluids
US4789000A (en) 1984-07-13 1988-12-06 Aslanian Jerry L Flow control device for administration

Also Published As

Publication number Publication date
WO1997011729A1 (fr) 1997-04-03
AU723789B2 (en) 2000-09-07
EP0862470A1 (fr) 1998-09-09
EP0862470A4 (fr) 1999-06-16
AU7369696A (en) 1997-04-17
CA2235720A1 (fr) 1997-04-03

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