CA2613866A1 - Pump set and pump with electromagnetic radiation operated interlock - Google Patents
Pump set and pump with electromagnetic radiation operated interlock Download PDFInfo
- Publication number
- CA2613866A1 CA2613866A1 CA002613866A CA2613866A CA2613866A1 CA 2613866 A1 CA2613866 A1 CA 2613866A1 CA 002613866 A CA002613866 A CA 002613866A CA 2613866 A CA2613866 A CA 2613866A CA 2613866 A1 CA2613866 A1 CA 2613866A1
- Authority
- CA
- Canada
- Prior art keywords
- pump
- electromagnetic radiation
- detector
- output signal
- medical
- 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
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
- A61M5/14212—Pumping with an aspiration and an expulsion action
- A61M5/14232—Roller pumps
-
- 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
- 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
- A61M5/14228—Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
Abstract
A medical pump including an electromagnetic emitter and detector is provided. The emitter emits electromagnetic radiation of a predetermined wavelength. A pump set that is compatible with the medical pump modifies the emitted electromagnetic radiation when properly installed in the pump. The detector receives electromagnetic radiation, and a filter excludes electromagnetic radiation having a wavelength other than the predetermined wavelength. The pump monitors the filtered signal to determine whether the received electromagnetic radiation corresponds to the emitted electromagnetic radiation as modified by a properly loaded, compatible pump set and determines whether a compatible pump set is properly loaded in the pump as a function thereof.
Claims (25)
1. A medical pump for pumping fluid through a pump set loaded therein, said pump set being adapted for modifying electromagnetic radiation transmitted therethrough when properly loaded in the medical pump, said medical pump comprising:
an emitter for emitting electromagnetic radiation having a predetermined wavelength;
a detector for receiving electromagnetic radiation including the electromagnetic radiation having the predetermined wavelength emitted by the emitter and providing a detector signal representative of the received electromagnetic radiation;
a filter for filtering the detector signal provided by the detector to exclude a portion of the detector signal representative of electromagnetic radiation having a wavelength other than the predetermined wavelength, said filter providing an output signal representative of the electromagnetic radiation having the predetermined wavelength received by the detector; and a controller for determining whether a compatible pump set is properly loaded in the pump as a function of the output signal, said controller being configured to enable the pump for pumping when the compatible pump set is properly loaded in the pump as indicated by the output signal.
an emitter for emitting electromagnetic radiation having a predetermined wavelength;
a detector for receiving electromagnetic radiation including the electromagnetic radiation having the predetermined wavelength emitted by the emitter and providing a detector signal representative of the received electromagnetic radiation;
a filter for filtering the detector signal provided by the detector to exclude a portion of the detector signal representative of electromagnetic radiation having a wavelength other than the predetermined wavelength, said filter providing an output signal representative of the electromagnetic radiation having the predetermined wavelength received by the detector; and a controller for determining whether a compatible pump set is properly loaded in the pump as a function of the output signal, said controller being configured to enable the pump for pumping when the compatible pump set is properly loaded in the pump as indicated by the output signal.
2. The medical pump of claim 1 further comprising:
a second emitter for emitting electromagnetic radiation having a second predetermined wavelength;
a second detector for receiving electromagnetic radiation including the electromagnetic radiation having the second predetermined wavelength emitted by the second emitter and providing a second detector signal representative of the intensity of the received electromagnetic radiation; and wherein the controller determines whether a compatible pump set is properly loaded in the pump as a function of the output signal and the second detector signal.
a second emitter for emitting electromagnetic radiation having a second predetermined wavelength;
a second detector for receiving electromagnetic radiation including the electromagnetic radiation having the second predetermined wavelength emitted by the second emitter and providing a second detector signal representative of the intensity of the received electromagnetic radiation; and wherein the controller determines whether a compatible pump set is properly loaded in the pump as a function of the output signal and the second detector signal.
3. The medical pump of claim 2 wherein the second emitter is pulsed at a predetermined frequency; and further comprising:
a second filter for filtering the second detector signal provided by the second detector to exclude frequencies other than the predetermined frequency such that the second detector signal is representative of the intensity of the electromagnetic radiation pulsed at the predetermined frequency received by the second detector.
a second filter for filtering the second detector signal provided by the second detector to exclude frequencies other than the predetermined frequency such that the second detector signal is representative of the intensity of the electromagnetic radiation pulsed at the predetermined frequency received by the second detector.
4. The medical pump of claim 1 wherein the pump set comprises an electromagnetic radiation propagation affecting member for substantially blocking the detector from receiving the emitted electromagnetic radiation when the pump set is properly loaded in the pump, and wherein the controller is responsive to the output signal being less than a threshold for enabling the pump for pumping.
5. The medical pump of claim 1 wherein the pump set comprises an electromagnetic radiation propagation affecting member for conducting electromagnetic radiation from the emitter to the detector, and wherein the controller is responsive to the output signal exceeding a threshold for enabling the pump for pumping.
6. The medical pump of claim 1 further comprising a user interface responsive to the controller for notifying a user that a pump set loaded in the pump is not compatible with the pump or is not properly loaded in the pump as indicated by the output signal.
7. The medical pump of claim 1 further comprising a cover for blocking ambient light from the detector.
8. The medical pump of claim 1 wherein the controller comprises:
an amplifier for amplifying the output signal; and an offset circuit for referencing the amplified output signal to about half of a voltage of a power supply of the medical pump.
an amplifier for amplifying the output signal; and an offset circuit for referencing the amplified output signal to about half of a voltage of a power supply of the medical pump.
9. The medical pump of claim 8 wherein the controller further comprises a comparator for comparing the output signal to a threshold for determining whether a compatible pump set is properly loaded in the pump, and wherein the threshold of the comparator is about 2/3 of the voltage of the power supply of the medical pump and the filter is a bandpass filter.
10. The medical pump of claim 9 wherein the bandbpass filter is a Bessel type bandpass filter.
11. The medical pump of claim 1 wherein the predetermined wavelength of the electromagnetic radiation is one of approximately 880 nanometers or approximately 510 nanometers.
12. A method of determining whether a compatible pump set is properly loaded in a medical pump, said pump set modifying electromagnetic radiation transmitted therethrough when properly loaded in the pump, said method comprising:
emitting, by an emitter of the pump, electromagnetic radiation through a portion of a pump set loaded in the pump, said electromagnetic radiation having a predetermined wavelength and being pulsed at a predetermined frequency;
receiving electromagnetic radiation including the electromagnetic radiation having the predetermined wavelength at a detector of the pump and providing a detector signal representative of the received electromagnetic radiation;
filtering the provided detector signal to exclude frequencies other than the predetermined frequency, said filter providing an output signal representative of the intensity of the electromagnetic radiation pulsed at the predetermined frequency received by the detector;
comparing the output signal to a threshold to determine whether the emitted electromagnetic radiation transmitted through the pump set has been modified;
generating a detection signal representative of the comparison; and determining whether the pump set is compatible with the pump and properly loaded in the pump as a function of the detection signal.
emitting, by an emitter of the pump, electromagnetic radiation through a portion of a pump set loaded in the pump, said electromagnetic radiation having a predetermined wavelength and being pulsed at a predetermined frequency;
receiving electromagnetic radiation including the electromagnetic radiation having the predetermined wavelength at a detector of the pump and providing a detector signal representative of the received electromagnetic radiation;
filtering the provided detector signal to exclude frequencies other than the predetermined frequency, said filter providing an output signal representative of the intensity of the electromagnetic radiation pulsed at the predetermined frequency received by the detector;
comparing the output signal to a threshold to determine whether the emitted electromagnetic radiation transmitted through the pump set has been modified;
generating a detection signal representative of the comparison; and determining whether the pump set is compatible with the pump and properly loaded in the pump as a function of the detection signal.
13. The method of claim 12 further comprising:
emitting, by a second emitter of the pump, second electromagnetic radiation through a portion of a pump set loaded in the pump, said second electromagnetic radiation having a second predetermined wavelength;
receiving electromagnetic radiation including the second electromagnetic radiation having the second predetermined wavelength at a second detector of the pump and providing a second detector signal representative of the received electromagnetic radiation;
comparing the second detector signal to a second threshold to determine whether the emitted second electromagnetic radiation transmitted through the pump set has been modified; and generating a second detection signal representative of the comparison of the second detector signal to the second threshold; and wherein determining whether the pump set is compatible with the pump and properly loaded in the pump is a function of the detection signal and the second detection signal.
emitting, by a second emitter of the pump, second electromagnetic radiation through a portion of a pump set loaded in the pump, said second electromagnetic radiation having a second predetermined wavelength;
receiving electromagnetic radiation including the second electromagnetic radiation having the second predetermined wavelength at a second detector of the pump and providing a second detector signal representative of the received electromagnetic radiation;
comparing the second detector signal to a second threshold to determine whether the emitted second electromagnetic radiation transmitted through the pump set has been modified; and generating a second detection signal representative of the comparison of the second detector signal to the second threshold; and wherein determining whether the pump set is compatible with the pump and properly loaded in the pump is a function of the detection signal and the second detection signal.
14. The method of claim 13 wherein emitting further comprises pulsing the second electromagnetic radiation at a second predetermined frequency; and further comprising:
filtering the provided second detector signal to exclude frequencies other than the second predetermined frequency such that said second detector signal is representative of the intensity of the electromagnetic radiation pulsed at the second predetermined frequency received by the second detector.
filtering the provided second detector signal to exclude frequencies other than the second predetermined frequency such that said second detector signal is representative of the intensity of the electromagnetic radiation pulsed at the second predetermined frequency received by the second detector.
15. The method of claim 12 further comprising substantially blocking electromagnetic radiation transmitted through the pump set from reaching the detector of the pump when the pump set is properly loaded in the pump, and wherein generating the detection signal is responsive to the output signal being less than the threshold.
16. The method of claim 12 further comprising conducting electromagnetic radiation transmitted through the pump set from the emitter of the pump to the detector of the pump when the pump set is properly loaded in the pump, and wherein generating the detection signal is responsive to the filtered output signal exceeding the threshold.
17. The method of claim 12 further comprising preventing the pump from pumping unless the pump set is compatible with the pump and is properly loaded in the pump as determined as a function of the detection signal.
18. The method of claim 12 further comprising notifying a user via a user interface of the pump when the detection signal indicates that at least one of:
the pump set is not compatible with the medical pump; and the pump set is improperly loaded in the medical pump.
the pump set is not compatible with the medical pump; and the pump set is improperly loaded in the medical pump.
19. The method of claim 12 wherein determining whether the pump set is compatible with the pump and properly loaded in the pump is initiated by closing a cover of the pump, said cover substantially blocking ambient light from the detector.
20 20. The method of claim 12 further comprising:
amplifying the output signal; and referencing the amplified output signal to about half of a voltage of a power supply of the pump; and wherein: the threshold is about 2/3 of the voltage of the power supply of the pump;
and filtering comprises filtering with a bandpass filter.
amplifying the output signal; and referencing the amplified output signal to about half of a voltage of a power supply of the pump; and wherein: the threshold is about 2/3 of the voltage of the power supply of the pump;
and filtering comprises filtering with a bandpass filter.
21. The method of claim 20 wherein the bandpass filter is a Bessel type bandpass filter.
22. The method of claim 12 wherein the predetermined wavelength of the electromagnetic radiation is one of: approximately 880 nanometers or approximately 510 nanometers; and the predetermined frequency is approximately 1 kHz.
23. A method of detecting electromagnetic radiation having a predetermined wavelength pulsed at a predetermined frequency in the presence of ambient light, said ambient light comprising electromagnetic radiation having a plurality of wavelengths, said method being for use with a medical pump, said pump including an emitter for emitting electromagnetic radiation having substantially the predetermined wavelength and a detector for receiving electromagnetic radiation, said method comprising:
receiving electromagnetic radiation at the detector of the pump, said received electromagnetic radiation including the electromagnetic radiation having the predetermined wavelength emitted by the emitter of the pump at the predetermined frequency and providing a detector signal representative of the received electromagnetic radiation;
filtering the provided detector signal to exclude a portion of the detector signal representative of electromagnetic radiation having a frequency other than the predetermined frequency and providing an output signal representative of the electromagnetic radiation having the predetermined frequency received by the detector;
comparing the provided output signal to a threshold;
generating a detection signal when the output signal exceeds the threshold;
and determining, as a function of the detection signal, that the emitted electromagnetic radiation is being received at the detector.
receiving electromagnetic radiation at the detector of the pump, said received electromagnetic radiation including the electromagnetic radiation having the predetermined wavelength emitted by the emitter of the pump at the predetermined frequency and providing a detector signal representative of the received electromagnetic radiation;
filtering the provided detector signal to exclude a portion of the detector signal representative of electromagnetic radiation having a frequency other than the predetermined frequency and providing an output signal representative of the electromagnetic radiation having the predetermined frequency received by the detector;
comparing the provided output signal to a threshold;
generating a detection signal when the output signal exceeds the threshold;
and determining, as a function of the detection signal, that the emitted electromagnetic radiation is being received at the detector.
24. The method of claim 23 further comprising:
amplifying the output signal; and referencing the amplified output signal to about 1/2 of a voltage of a power supply of the medical pump; and wherein:
the threshold is equal to about 2/3 of the voltage of the power supply of the medical pump;
the predetermined wavelength is one of about 510 nanometers or about 880 nanometers; and filtering comprises filtering with a bandpass filter.
amplifying the output signal; and referencing the amplified output signal to about 1/2 of a voltage of a power supply of the medical pump; and wherein:
the threshold is equal to about 2/3 of the voltage of the power supply of the medical pump;
the predetermined wavelength is one of about 510 nanometers or about 880 nanometers; and filtering comprises filtering with a bandpass filter.
25. The method of claim 24 wherein the bandpass filter is a Bessel type bandpass filter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/609,234 | 2006-12-11 | ||
| US11/609,234 US7560686B2 (en) | 2006-12-11 | 2006-12-11 | Pump set and pump with electromagnetic radiation operated interlock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2613866A1 true CA2613866A1 (en) | 2008-06-11 |
| CA2613866C CA2613866C (en) | 2011-02-01 |
Family
ID=39205292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2613866A Active CA2613866C (en) | 2006-12-11 | 2007-12-10 | Pump set and pump with electromagnetic radiation operated interlock |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US7560686B2 (en) |
| EP (2) | EP2298383B1 (en) |
| CN (2) | CN101947338A (en) |
| AT (1) | ATE552021T1 (en) |
| AU (1) | AU2007240235B2 (en) |
| CA (1) | CA2613866C (en) |
| ES (1) | ES2383787T3 (en) |
| HK (1) | HK1118741A1 (en) |
| IL (1) | IL188058A0 (en) |
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Also Published As
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|---|---|
| EP2298383A1 (en) | 2011-03-23 |
| US20080135725A1 (en) | 2008-06-12 |
| CN101254324B (en) | 2011-03-23 |
| ES2383787T3 (en) | 2012-06-26 |
| US20090264824A1 (en) | 2009-10-22 |
| CA2613866C (en) | 2011-02-01 |
| AU2007240235B2 (en) | 2009-05-14 |
| AU2007240235A1 (en) | 2008-06-26 |
| EP1932554A1 (en) | 2008-06-18 |
| EP2298383B1 (en) | 2012-04-04 |
| IL188058A0 (en) | 2008-12-29 |
| US7560686B2 (en) | 2009-07-14 |
| ATE552021T1 (en) | 2012-04-15 |
| CN101254324A (en) | 2008-09-03 |
| EP1932554B1 (en) | 2013-03-13 |
| CN101947338A (en) | 2011-01-19 |
| US8053721B2 (en) | 2011-11-08 |
| HK1118741A1 (en) | 2009-02-20 |
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