GB2226879A - Level sensor for intravenous drip bottle - Google Patents
Level sensor for intravenous drip bottle Download PDFInfo
- Publication number
- GB2226879A GB2226879A GB8900132A GB8900132A GB2226879A GB 2226879 A GB2226879 A GB 2226879A GB 8900132 A GB8900132 A GB 8900132A GB 8900132 A GB8900132 A GB 8900132A GB 2226879 A GB2226879 A GB 2226879A
- Authority
- GB
- United Kingdom
- Prior art keywords
- warning device
- photoelectric
- sensor
- dripping bottle
- photoelectric 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.)
- Withdrawn
Links
- 238000001990 intravenous administration Methods 0.000 title 1
- 238000010253 intravenous injection Methods 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 3
- 230000001070 adhesive effect Effects 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 20
- 239000007788 liquid Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000001256 tonic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
- G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
-
- 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
- A61M2205/18—General characteristics of the apparatus with alarm
-
- 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
- A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
- A61M2205/3386—Low level detectors
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A warning device for a drip bottle used for intravenous injection comprises a photoelectric level sensor 40 connected electrically by means of a flexible bus cable to an alarm. The photoelectric sensor is attached by adhesive to the outer lower end of the bottle and comprises an infra-red source and sensor in separate compartments, the amount of light reflected to the sensor depending on the presence or absence of liquid. <IMAGE>
Description
A WARNING DEVICE FOR DRIPPING BOTTLE IN
INTRAVENOUS INJECTION
This invention relates to a warning device for dripping bottle in intravenous injection, particularly, this invention relates to a device which can send out a warning signal to remind the person attend to the dripping bottle.
Regarding the warning devices for the dripping bottle in intravenous injection in the prior art, there are Spani's "Empty Container Detectar" Patent No.4,665,391; Jinotti's "Fluid-dispensing Apparatus Having Level Control and Alarm Means" Patent No.4,014,010; Deltour's "Drop
Monitor", etc.. Among the aforesaid inventious, Spani's and Jinotti's inventious are used to detect the fluid level scales by means of photoelectric transducers being installed across a fluid container; one of the photoelectric transducer is associated with the fluid container above the fluid level in the container to establish a reference signal corresponding to the condition wherein the hight path is not refracted or attenuated by the presence of a fluid.Electrical means are provided to connect the first photoelectric transducer to the second photoelectric transduser to linearize and normolize the reference signal with a contral signal generated by another photoelectric transducer. A comparator is associated with the photoelectric transducer, and connected to an alarm,which indicates when the contral signal is substantially equivalent to the reference signal, and thus indicating the lowering of the fluid level below the hight path of the first photoelectric transducer; however, the aforesaid inventions are quite different from the present invention. For instance, the photoelectric sensor of the present invention is attached to the lower outside of the dripping bottle. The alarm would not send out a sound signal until the fluid in the dripping bottle almost being used up.
In Deltour's invention (U.S. Pat. 3,563,090), the structure and design of the "Drop Monitor" is similar to Spani's invention. The light source and the photoresistive cell are installed at one side of the drop observation tube 24 instead of being installed on a same level. On the opposite side of the light source and the photo-resistive cell, there installs a mirror so as to let a light pass through a medium surface, and then the light is reflected back to the photo-resistive cell.
This invention provides a warning device for dripping bottle in intravenous injection, of which the features are that a photoelectric transmitter can send out an infrared, and the infrared can, after passing and being refracted through different media, generate different signals, whereby the level of a medical fluid can be detected. When a medical fluid in a dripping bottle lowers to a given level, a photoelectric sensor will generate a signal to cause an alarm to send out warning signal to remind a person, who should attend the injection set of a dripping bottle.
An embodiment of this invention will now be described, by way of example, with reference to the accompanying drawings in which:
Fig. 1 is a perspective view of the present invention.
Fig. 2 is block diagram of the present invention.
Fig. 3 illustrates the operation made of the photoelectric sensor according to the present invention.
Fig. 4 illustrates the operation of the photoelectric sensor according to the present invention.
As shown in Fig. 1, there shows the dripping bottle unit for intravenous injection and the warning device according to the present invention. The dripping bottle 10 is used for containing salt water or tonic fluid. The top of the dripping bottle 10 has a hook 11 for hanging the dripping bottle on a hook frame 20 to administer the dripping fluid. The bottom (the mouth part) of the dripping bottle 10 is connected with a buffer tube 12, which is further connected with a connecting tube 13; the tube 13 is then connected with an injection needle. The warning device according to the present invention comprises an electronic control unit 30 and a pnotoelectric sensor 40 being adhered to the dripping bottle 10.
Fig. 3 illustrates the photoelectric sensor 40, which is divided, with a partition board 41, into a signal transmission area 42 and a signal reception area 43. The signal transmission area 42 further includes a photoelectric transmitter 44 to transmit infrared. The signal reception area 43 has a photoelectric receptor 45.
After the focal length of the photoelectric transmitter 44 being adjusted properly, the transmitter 44 will transmit an infrared signal to a reflecting mirror 50, which will reflect the infrared signal to the photoelectric receptor 45. In the embodiment of the present invention as shown in Fig. 4, the dripping bottle 10 is used to replace the reflecting mirror 50.A light would have different reflective index upon passing through different medium; by the same taken, the infrared according to the present invention would have different reflective index upon passing through the air 60 and the medical fluid 70 in the dripping bottle 10; as a result, the infrared after being reflected and received would cause the photoelectric receptor 45 to generator different signals, and therefore the different signals will be used to indicate and measure the level height of the mecical fluid in the dripping bottle 10. That signal generated can be used to trigger the electronic control unit 30 and the alarm 31 so as to warn and remind the nurse personnel to watch the operation of dripping bottle.
As shown in Figs 2 and 4, there shows the photoelectric sensor 40 being attached, with an adhesive 46, to a suitable position on the outside of the dripping bottle 10, i.e.. the position to facilitate the medical fluid level in the dripping bottle 10 to be watched by nurse personnel. Whenever the medical fluid 0 loweres below the sensing level A, the photoelectric sensor 40 will send out an infrared signal to pass through the air 60 and the medical fluid 70 and to be reflected into the photoelectric receptor 45, which will trigger the electronic control unit 30 to provide a signal output 47, which will be coupled to a signal comparator 48; the output of the comparator 48 will have the circuit become conducting so as to cause the alarm 31 to send out a warning signal to remind the nurse personnel that an attention to the dripping bottle is necessary.
Another feature of the present invention is that a flexible bus cable 80 is connected between the photoelectric sensor 40 and the electric control unit 0.
Since that bus cable 80 is flexible and bendable, it can still connect the aforesaid sensor 40 and unit 30 properly no matter the dripping bottle being placed at any position.
According to the aforesaid description, the warning device of the dripping bottle of the present invention mainly comprises a pnotoelectric sensor, an electronic control unit and an alarm. Whenever the medical fluid in the dripping bottle lowers below the sensing level
A on the dripping bottle, the photoelectric sensor will generate a signal to trigger the alarm. The present invention is deemed a simple, novel and practical device.
Claims (5)
1. A warning device for dripping bottle in intravenous injection, mainly comprising a dripping bottle in intravenous injection and a warning device, and characterized in that said warning device including an electronic contral unit and a photoelectric sensor being attached to said dripping bottle; and said photoelectric sensor having a photoelectric transmitter able to transmit infrared which would, after passing through different media such as medical fluid and air, generate differentsigna3s co indicate the level of the medical fluid; and whenever the level of the medical fluid being lowered than a sensing level, a photoelectric receptor in said pnotoelectric sensor generating a signal and comparing said signal so as to have a circuit become conductive to trigger an alarm.
2. A warning device according to claim 1, wherein the angle of incidence of said photoelectric transmitter in said photoelectric sensor is equal to the angle of reflection; and said both angles being preferred at an angle of 900 to the medium.
3. A warning device according to claim 1, wherein said photoelectric sensor and said electronic control unit are electrically connected together by means of a flexible bus cable.
4. A warning device according to claim 1, wherein the surface of said photoelectric sensor has an adhesive means so as to have said ph#toelectric sensor attached to the outer surface of said dripping bottle.
5. A warning device substantially as herein before described with reference to, and as illustrated in, the accompanying drawings.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8900132A GB2226879A (en) | 1989-01-05 | 1989-01-05 | Level sensor for intravenous drip bottle |
| FR8900191A FR2641610B3 (en) | 1989-01-05 | 1989-01-10 | WARNING DEVICE FOR DROPPER VIALS FOR INTRAVENOUS INJECTIONS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8900132A GB2226879A (en) | 1989-01-05 | 1989-01-05 | Level sensor for intravenous drip bottle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8900132D0 GB8900132D0 (en) | 1989-03-01 |
| GB2226879A true GB2226879A (en) | 1990-07-11 |
Family
ID=10649595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8900132A Withdrawn GB2226879A (en) | 1989-01-05 | 1989-01-05 | Level sensor for intravenous drip bottle |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2641610B3 (en) |
| GB (1) | GB2226879A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2373573A (en) * | 2001-03-12 | 2002-09-25 | Ming-Fang Pai | Automatic infusion-monitoring instrument |
| WO2007033182A3 (en) * | 2005-09-13 | 2007-10-11 | Dial Corp | Vapor-emitting device with an active end of use indicator |
| US8112293B2 (en) | 2006-03-24 | 2012-02-07 | Ipventure, Inc | Medical monitoring system |
| CN106310452A (en) * | 2016-08-31 | 2017-01-11 | 杭州国辰迈联机器人科技有限公司 | Detecting device and using method for transfusion infrared liquid level |
| CN106345001A (en) * | 2016-08-31 | 2017-01-25 | 中山嘉合医疗科技有限公司 | Infusion tube liquid detection system and detection method thereof |
| US20170089750A1 (en) * | 2015-09-28 | 2017-03-30 | Endress+Hauser Conducta Gmbh+Co. Kg | Device for dispensing a liquid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3563090A (en) * | 1968-09-18 | 1971-02-16 | Basil V Deltour | Drop monitor |
| US3636360A (en) * | 1968-05-13 | 1972-01-18 | Hitachi Ltd | Apparatus for detection of liquid level in transparent tube comprising photocell located to receive light which has been totally reflected |
| GB2035561A (en) * | 1978-11-06 | 1980-06-18 | Hansmann R | A photoelectric level switch |
| EP0061797A2 (en) * | 1981-03-27 | 1982-10-06 | BONOTTO s.n.c. di Bonotto Giovanni & C. | Apparatus for in-line checking of the liquid level in phials |
| GB2107463A (en) * | 1981-10-14 | 1983-04-27 | Smiths Industries Plc | Liquid level detection |
| EP0199904A1 (en) * | 1985-05-03 | 1986-11-05 | PKL Verpackungssysteme GmbH | Level-measuring device for liquids, especially H0202 |
| EP0228217A1 (en) * | 1985-12-18 | 1987-07-08 | LUCAS INDUSTRIES public limited company | Liquid level detection |
-
1989
- 1989-01-05 GB GB8900132A patent/GB2226879A/en not_active Withdrawn
- 1989-01-10 FR FR8900191A patent/FR2641610B3/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3636360A (en) * | 1968-05-13 | 1972-01-18 | Hitachi Ltd | Apparatus for detection of liquid level in transparent tube comprising photocell located to receive light which has been totally reflected |
| US3563090A (en) * | 1968-09-18 | 1971-02-16 | Basil V Deltour | Drop monitor |
| GB2035561A (en) * | 1978-11-06 | 1980-06-18 | Hansmann R | A photoelectric level switch |
| EP0061797A2 (en) * | 1981-03-27 | 1982-10-06 | BONOTTO s.n.c. di Bonotto Giovanni & C. | Apparatus for in-line checking of the liquid level in phials |
| GB2107463A (en) * | 1981-10-14 | 1983-04-27 | Smiths Industries Plc | Liquid level detection |
| EP0199904A1 (en) * | 1985-05-03 | 1986-11-05 | PKL Verpackungssysteme GmbH | Level-measuring device for liquids, especially H0202 |
| EP0228217A1 (en) * | 1985-12-18 | 1987-07-08 | LUCAS INDUSTRIES public limited company | Liquid level detection |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2373573A (en) * | 2001-03-12 | 2002-09-25 | Ming-Fang Pai | Automatic infusion-monitoring instrument |
| WO2007033182A3 (en) * | 2005-09-13 | 2007-10-11 | Dial Corp | Vapor-emitting device with an active end of use indicator |
| US8112293B2 (en) | 2006-03-24 | 2012-02-07 | Ipventure, Inc | Medical monitoring system |
| US20170089750A1 (en) * | 2015-09-28 | 2017-03-30 | Endress+Hauser Conducta Gmbh+Co. Kg | Device for dispensing a liquid |
| US10161781B2 (en) * | 2015-09-28 | 2018-12-25 | Endress+Hauser Conducta Gmbh+Co. Kg | Device for dispensing a liquid |
| CN106310452A (en) * | 2016-08-31 | 2017-01-11 | 杭州国辰迈联机器人科技有限公司 | Detecting device and using method for transfusion infrared liquid level |
| CN106345001A (en) * | 2016-08-31 | 2017-01-25 | 中山嘉合医疗科技有限公司 | Infusion tube liquid detection system and detection method thereof |
| CN106345001B (en) * | 2016-08-31 | 2019-03-22 | 中山嘉合医疗科技有限公司 | A kind of detection method of perfusion tube liquid detecting system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2641610A3 (en) | 1990-07-13 |
| GB8900132D0 (en) | 1989-03-01 |
| FR2641610B3 (en) | 1990-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |