CA2176473A1 - A syringe infusion pump having a syringe plunger sensor - Google Patents

A syringe infusion pump having a syringe plunger sensor

Info

Publication number
CA2176473A1
CA2176473A1 CA002176473A CA2176473A CA2176473A1 CA 2176473 A1 CA2176473 A1 CA 2176473A1 CA 002176473 A CA002176473 A CA 002176473A CA 2176473 A CA2176473 A CA 2176473A CA 2176473 A1 CA2176473 A1 CA 2176473A1
Authority
CA
Canada
Prior art keywords
plunger
syringe
barrel
infusion pump
sensor
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.)
Granted
Application number
CA002176473A
Other languages
French (fr)
Other versions
CA2176473C (en
Inventor
Marc Mandro
Jean Bellerose
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.)
Baxter International Inc
Original Assignee
Marc Mandro
Jean Bellerose
Baxter International Inc.
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
Application filed by Marc Mandro, Jean Bellerose, Baxter International Inc. filed Critical Marc Mandro
Publication of CA2176473A1 publication Critical patent/CA2176473A1/en
Application granted granted Critical
Publication of CA2176473C publication Critical patent/CA2176473C/en
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
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1456—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable 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
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1458—Means for capture of the plunger flange

Abstract

An infusion pump (10) for dispensing fluid from a syringe (22) having a barrel (24) and a plunger (26) slidably inserted into the barrel (24), is disclosed. The infusion pump (10) provides a housing (12) having a bracket (18) which supports the barrel (24).
A syringe driver (20) is movably attached to the housing (12) such that the syringe driver (20) abuts the plunger (26) to slide the plunger (26) into the barrel (24). A sensor is provided for sensing both the position of the plunger (26) to the barrel (24) and the capture of the plunger (26) in the syringe driver (20). Control circuitry is electrically connected to the sensor for determining the capture and position of the plunger (26).
The sensor comprises a potentiometer (46) attached to the housing (12) and electrically connected to the control circuitry. The sensor further comprises a wiper (44) supported by the syringe driver (20). The wiper (44) operatively contacts the potentiometer (46) such that the control circuitry receives an output signal from the potentiometer to determine the position of the plunger (26) and the capture of the syringe driver (20) in the plunger (26).
CA002176473A 1994-10-06 1995-09-18 A syringe infusion pump having a syringe plunger sensor Expired - Fee Related CA2176473C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/319,277 1994-10-06
US08/319,277 US5533981A (en) 1994-10-06 1994-10-06 Syringe infusion pump having a syringe plunger sensor
PCT/US1995/011881 WO1996011024A1 (en) 1994-10-06 1995-09-18 A syringe infusion pump having a syringe plunger sensor

Publications (2)

Publication Number Publication Date
CA2176473A1 true CA2176473A1 (en) 1996-04-18
CA2176473C CA2176473C (en) 2001-06-12

Family

ID=23241581

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002176473A Expired - Fee Related CA2176473C (en) 1994-10-06 1995-09-18 A syringe infusion pump having a syringe plunger sensor

Country Status (7)

Country Link
US (1) US5533981A (en)
EP (2) EP0732948B1 (en)
JP (1) JPH09506288A (en)
AU (1) AU686884B2 (en)
CA (1) CA2176473C (en)
DE (2) DE69533007D1 (en)
WO (1) WO1996011024A1 (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US8403888B2 (en) 2010-04-15 2013-03-26 Teneo Innovations Inc. Device and electronic controller for syringe piston control

Also Published As

Publication number Publication date
EP0732948A4 (en) 1997-08-13
US5533981A (en) 1996-07-09
CA2176473C (en) 2001-06-12
DE69533007D1 (en) 2004-06-09
WO1996011024A1 (en) 1996-04-18
DE69530474T2 (en) 2004-02-19
JPH09506288A (en) 1997-06-24
AU3555695A (en) 1996-05-02
AU686884B2 (en) 1998-02-12
DE69530474D1 (en) 2003-05-28
EP0732948A1 (en) 1996-09-25
EP0732948B1 (en) 2003-04-23
EP1279410B1 (en) 2004-05-06
EP1279410A1 (en) 2003-01-29

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