CA2594084A1 - Pump set with safety interlock - Google Patents

Pump set with safety interlock Download PDF

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Publication number
CA2594084A1
CA2594084A1 CA002594084A CA2594084A CA2594084A1 CA 2594084 A1 CA2594084 A1 CA 2594084A1 CA 002594084 A CA002594084 A CA 002594084A CA 2594084 A CA2594084 A CA 2594084A CA 2594084 A1 CA2594084 A1 CA 2594084A1
Authority
CA
Canada
Prior art keywords
electromagnetic radiation
set forth
channel
pump set
facing surface
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
CA002594084A
Other languages
French (fr)
Other versions
CA2594084C (en
Inventor
James G. Hanlon
David R. Swisher
Kevin C. Meier
Joel D. Wiesner
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.)
KPR US LLC
Original Assignee
Tyco Healthcare Group LP
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 Tyco Healthcare Group LP filed Critical Tyco Healthcare Group LP
Publication of CA2594084A1 publication Critical patent/CA2594084A1/en
Application granted granted Critical
Publication of CA2594084C publication Critical patent/CA2594084C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A61M5/168—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
    • 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
    • A61M5/14212—Pumping with an aspiration and an expulsion action
    • A61M5/14232—Roller pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0081—Special features systems, control, safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0468—Liquids non-physiological
    • A61M2202/0482—Enteral feeding product
    • 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
    • A61M2205/14—Detection of the presence or absence of a tube, a connector or a container in an apparatus
    • 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
    • A61M2205/3306—Optical measuring means
    • 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
    • A61M2205/3306—Optical measuring means
    • A61M2205/3313—Optical measuring means used specific wavelengths
    • 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
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6063—Optical identification systems

Abstract

A pump set for use with a pump to deliver a supply of liquid to a patient. The feeding set has a conduit for the nutrient liquid and a safety interlock device associated with the conduit. The pumping apparatus has a pumping device and a control system for controlling operation of the pump. An electromagnetic radiation source is operatively connected to the control system of the pump for emitting an electromagnetic radiation signal in a direction for striking the safety interlock device of the feeding set. The safety interlock device is adapted to affect the direction of the electromagnetic radiation. An electromagnetic radiation detector is operatively connected to the control system for receiving the electromagnetic radiation signal when the direction is affected by the safety interlock device, and providing an indication to the control system that the feeding set conduit is properly positioned in the feeding pump.

Claims (31)

1. A pump set for use in a pumping apparatus having a control system for controlling operation of the pumping apparatus to supply fluid to a patient through the pump set loaded in the pumping apparatus, a source of electromagnetic radiation operatively connected to the control system of the pumping apparatus for emitting electromagnetic radiation, an electromagnetic radiation detector operatively connected to the control system for providing an indication that the pump set is properly loaded on the pumping apparatus, the pump set comprising:
a conduit for carrying fluid to a patient;
an electromagnetic radiation propagation affecting member associated with the conduit and adapted for mounting in the pumping apparatus in the path of the electromagnetic radiation from the source of electromagnetic radiation, the propagation affecting member comprising a body defining a fluid passage in communication with the conduit for passing fluid through the body, the fluid passage having an axis, the body including a light transmitting portion projecting generally radially from the fluid passage, the light transmitting portion being formed of a material that transmits electromagnetic radiation, the light transmitting portion including at least one interposing surface and at least one channel located closer to the axis of the fluid passage than the interposing surface, the channel defining a reflection surface generally disposed on a radially outward side of the channel.
2. A pump set as set forth in 1 wherein the body has a generally axially facing surface, and the channel extends axially inward from the axially facing surface.
3. A pump set as set forth in claim 2 wherein the channel is at least partially in axial alignment with the interposing surface
4. A pump set as set forth in claim 3 wherein the channel and reflection surface are generally annular extending around the axis of the fluid passage.
5. A pump set as set forth in claim 4 wherein the axially facing surface constitutes a first axially facing surface, the light transmitting portion of the body further comprising a second generally axially facing surface facing in an axial direction opposite to the first axially facing surface.
6. A pump set as set forth in claim 5 wherein the second axially facing surface is disposed at an angle to the axis of the fluid passage.
7. A pump set as set forth in claim 6 wherein the second axially facing surface is generally frustoconical in shape.
8. A pump set as set forth in claim 5 wherein the channel in the first axially facing surface constitutes a first channel, and wherein the second axially facing surface has a second channel formed therein.
9. A pump set as set forth in claim 1 wherein the channel has a generally L-shaped cross section.
10. A pump set as set forth in claim 9 wherein the channel includes a first portion extending a first axial distance into the body, and a second portion extending a second axial distance into the body greater than the first axial distance.
11. A pump set as set forth in claim 10 wherein the second channel has a generally L-shaped cross section.
12. A pump set as set forth in claim 1 wherein the body includes first and second generally cylindrical portions extending axially in opposite directions from the light transmitting portion, the fluid passage extending through the cylindrical portions.
13. A pump set as set forth in claim 1 wherein the light transmitting portion of the body is formed of a material that transmits electromagnetic radiation in the infrared range and blocks transmission of electromagnetic radiation in the visible range.
14. A pump set as set forth in claim 1 in combination with the pumping apparatus, the pumping apparatus comprising a housing including a recess sized and shaped for receiving the propagation affecting member of the pump set therein, and a door pivotally mounted on the housing for movement between an open position in which the recess is exposed for insertion of the propagation affecting member into and removal from the recess, and a closed position in which the door is adapted to substantially close the propagation affecting member in the recess and block ambient light from entering the recess.
15. A pump set as set forth in claim 14 wherein the pumping apparatus further comprises a door pivotally mounted on the housing for movement between an open position in which the recess is exposed for insertion of the propagation affecting member into and removal from the recess, and a closed position in which the door is adapted to substantially close the propagation affecting member in the recess and block ambient light from entering the recess.
16. A pump set as set forth in claim 1 wherein the ratio of the radius of the reflection surface to the radius of the interposing surface is less than or equal to about 60 percent.
17. A safety interlock for use in a medical device having a control system for controlling operation of the medical device, a source of electromagnetic radiation operatively connected to the control system of the medical device for emitting electromagnetic radiation, an electromagnetic radiation detector operatively connected to the control system for providing an indication that the safety interlock is properly loaded on the medical device, the safety interlock comprising an electromagnetic radiation propagation affecting member associated with the conduit and adapted for mounting in the medical device in the path of the electromagnetic radiation from the source of electromagnetic radiation, the propagation affecting member comprising a body defining a fluid passage in communication with the conduit for passing fluid through the body, the fluid passage having an axis, the body including a light transmitting portion projecting generally radially from the fluid passage, the light transmitting portion being formed of a material that transmits electromagnetic radiation, the light transmitting portion including at least one interposing surface and at least one channel located closer to the axis of the fluid passage than the interposing surface, the channel defining a reflection surface generally disposed on a radially outward side of the channel.
18. A safety interlock as set forth in 17 wherein the body has a generally axially facing surface and the channel extends axially inward from the axially facing surface.
19. A safety interlock as set forth in claim 18 wherein the channel is at least partially in axial alignment with the interposing surface
20. A safety interlock as set forth in claim 19 wherein the channel and reflection surface are generally annular extending around the axis of the fluid passage.
21. A safety interlock as set forth in claim 20 wherein the axially facing surface constitutes a first axially facing surface, the light transmitting portion of the body further comprising a second generally axially facing surface facing in an axial direction opposite to the first axially facing surface.
22. A safety interlock as set forth in claim 21 wherein the second axially facing surface is disposed at an angle to the axis of the fluid passage.
23. A safety interlock as set forth in claim 22 wherein the second axially facing surface is generally frustoconical in shape.
24. A safety interlock as set forth in claim 21 wherein channel in the first axially facing surface constitutes a first channel, and wherein the second axially facing surface has a second channel formed therein.
25. A safety interlock as set forth in claim 17 wherein the channel has a generally L-shaped cross section.
26. A safety interlock as set forth in claim 25 wherein the channel includes a first portion extending a first axial distance into the body, and a second portion extending a second axial distance into the body greater than the first axial distance.
27. A safety interlock as set forth in claim 26 wherein the second channel has a generally L-shaped cross section.
28. A safety interlock as set forth in claim 17 wherein the body includes first and second generally cylindrical portions extending axially in opposite directions from the light transmitting portion, the fluid passage extending through the cylindrical portions.
29. A pump set as set forth in claim 17 wherein the light transmitting portion of the body is formed of a material that transmits electromagnetic radiation in the infrared range and blocks transmission of electromagnetic radiation in the visible range.
30. A pump set as set forth in claim 17 wherein the ratio of the radius of the reflection surface to the radius of the interposing surface is less than or equal to about 60 percent.
31. A pumping system comprising:
pumping apparatus having a control system for controlling operation of the pumping apparatus to supply fluid to a patient through a pump set loaded in the pumping apparatus, a source of electromagnetic radiation operatively connected to the control system of the pumping apparatus for emitting electromagnetic radiation, an electromagnetic radiation detector operatively connected to the control system for providing an indication that the pump set is properly loaded on the pumping apparatus;
the pump set comprising;
a conduit for carrying fluid to a patient, an electromagnetic radiation propagation affecting member associated with the conduit and adapted for mounting in the pumping apparatus in the path of the electromagnetic radiation from the source of electromagnetic radiation, the propagation affecting member comprising a body defining a fluid passage in communication with the conduit for passing fluid through the body, the fluid passage having an axis, the body including a light transmitting portion projecting generally radially from the fluid passage, the light transmitting portion being formed of a material that transmits electromagnetic radiation, the light transmitting portion including at least one interposing surface and at least one channel located closer to the axis of the fluid passage than the interposing surface, the channel defining a reflection surface generally disposed on a radially outward side of the channel.
CA2594084A 2007-01-05 2007-07-19 Pump set with safety interlock Active CA2594084C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/620,353 US7722562B2 (en) 2006-03-02 2007-01-05 Pump set with safety interlock
US11/620,353 2007-01-05

Publications (2)

Publication Number Publication Date
CA2594084A1 true CA2594084A1 (en) 2008-07-05
CA2594084C CA2594084C (en) 2010-11-09

Family

ID=39323028

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2594084A Active CA2594084C (en) 2007-01-05 2007-07-19 Pump set with safety interlock

Country Status (12)

Country Link
US (2) US7722562B2 (en)
EP (2) EP2298384A1 (en)
JP (1) JP2008168111A (en)
KR (1) KR100962741B1 (en)
CN (1) CN101214398B (en)
AU (1) AU2007203342B2 (en)
BR (1) BRPI0703324A (en)
CA (1) CA2594084C (en)
IL (1) IL184616A0 (en)
MX (1) MX2007009163A (en)
SG (1) SG144017A1 (en)
TW (1) TWI337879B (en)

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