CN200998469Y - Calling device-accessory for transfusion - Google Patents
Calling device-accessory for transfusion Download PDFInfo
- Publication number
- CN200998469Y CN200998469Y CNU2007200339923U CN200720033992U CN200998469Y CN 200998469 Y CN200998469 Y CN 200998469Y CN U2007200339923 U CNU2007200339923 U CN U2007200339923U CN 200720033992 U CN200720033992 U CN 200720033992U CN 200998469 Y CN200998469 Y CN 200998469Y
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- China
- Prior art keywords
- light
- hole
- dropping funnel
- transfusion
- calling unit
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Abstract
The utility model relates to an automatic transfusion calling device, which comprises a casing body, a hanging rod, a light emitting tube, a light absorption tube and an alarm circuit. A drip funnel hole is arranged in the casing body, and a light emission hole and a receiving hole which are the mutually aligned is arranged on the inner wall of the drip funnel hole, the distance h between the straight line formed by connecting the light emission hole and the receiving hole and the central axle of a drip funnel is within the range that 6R/17 is less than or equal and h is less than or equal to 16R/17, wherein, R is the radium of the drip funnel. By utilizing the refraction principle of the light in water, the range of the distance between the straight line formed by connecting the light emission hole and the receiving hole and the central axle of a drip funnel is accurately designed for the calling device, to ensure that the light emitted from the light emitting tube can refract when entering into the drip funnel, thus skillfully solving the fluid level monitoring problem of the drip funnel, and whether the transfusion is completed or not can be determined through detecting the on/off of the optical path. The utility model has the advantages that the sensitivity, the precision and the reliability are high, the structure is simple, the cost is low, the operation is convenient, and the service life is long, additionally, and the automatic transfusion calling device is not contacted with the liquid medicine, thus the safety is high, being favorable for popularizing.
Description
Technical field
This utility model relates to a kind of calling set, particularly a kind of transfusion automatic calling unit.
Background technology
At present, in the big infirmary at home, venous transfusion has become main treatment means.When carrying out venous transfusion, if transfusion finishes and the untimely syringe needle of extracting, the air admission vein will be arranged, may cause malpractice, cause patient's life danger.So during the transfusion of present hospital, often need patient or entourage to monitor liquid level position, when liquid level is reduced to a certain degree, should in time notify the nurse, patient can not get good rest like this, and the entourage is also tired to can't bear.
Someone has designed the automatic pager of transfusion, when medicinal liquid soon is totally lost, sends signal automatically, reminds patient to notify the nurse in time to handle.Domestic in recent years also have many people be devoted to infuse R﹠D work of automatic pager, proposed the technical scheme of multiple principle, and applied for patent.These technology have plenty of the weighing principle of using, has plenty of the principle that changes with measuring pressure, have plenty of and adopt the principle that liquid level changes in the ultrasonic listening bottle, these a few class devices all exist complex structure, cost higher, be awkward, and sensitivity, accuracy and reliability are relatively poor, the sensing element of some calling set contacts with medicinal liquid, may pollute medicinal liquid, work the mischief, what have also needs medical disposable material, increases patient's financial burden.Also have a kind of calling set to utilize the optoelectronic induction principle, its have lay respectively at the dropping funnel upper and lower part two couples to photoemissive device and photoelectric receiving device, by monitoring that whether having medicinal liquid to continue to splash into dropping funnel judges whether transfusion finishes, its Rule of judgment complexity, structure is more complicated also, in order to guarantee that the ray refraction angle is enough big, also dropping funnel must be squeezed into the cross section is leg-of-mutton cylinder.
Because there is above-mentioned drawback in prior art, up to now, does not see that the automatic pager of above-mentioned transfusion is used for clinical.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the shortcoming of existing photoelectric induction type calling set, and a kind of transfusion automatic calling unit simple in structure is provided.
The technical scheme that its technical problem that solves this utility model adopts is as follows: a kind of transfusion automatic calling unit, form and comprise housing, suspension rod, luminous tube, light absorption pipe and warning circuit, it is characterized in that having the dropping funnel hole in the described housing, dropping funnel hole inwall has light-emitting hole and the light-receiving hole that is aligned with each other, the straight line that light-emitting hole and light-receiving hole are linked to be is 6R/17≤h≤16R/17 to the scope of the distance h of dropping funnel central shaft, and wherein R is the dropping funnel radius.
The beneficial effects of the utility model are as follows: this calling set utilizes light to produce this principle of refraction in water, accurately designed straight line that light-emitting hole and light-receiving hole be linked to be scope to the distance of dropping funnel central shaft, produce refraction when guaranteeing medicinal liquid in entering dropping funnel of light that luminous tube penetrates, solved the problem of liquid level monitoring in the dropping funnel cleverly, during the transfusion beginning, liquid level is higher than the path channels of light-emitting hole and the formation of light-receiving hole in the dropping funnel, the light that luminous tube penetrates produces refraction after light-emitting hole enters dropping funnel, can't enter the light-receiving hole, light path is interrupted, and warning circuit is not worked; When infusing approaching finishing, liquid level descends in the dropping funnel, and be lower than above-mentioned path channels, at this moment the light that penetrates of luminous tube does not reflect in dropping funnel, thereby this light enters the light-receiving hole, and is incident upon on the light absorption pipe in the light-receiving hole, light path is connected, warning circuit work gives the alarm, and notifies nurse or related personnel in time to handle.Judge whether transfusion finishes, and its sensitivity, accuracy and reliability are higher, and it is simple in structure, cost is low, be convenient to operation by the break-make that detects light path, and long service life, characteristics that do not come in contact with medicinal liquid in addition, it is safe, helps applying.
Description of drawings
Fig. 1 faces structural representation for this utility model transfusion automatic calling unit.
Fig. 2 is this utility model transfusion automatic calling unit plan structure sketch map.
Fig. 3 is this utility model transfusion automatic calling unit perspective view.
Fig. 4 is this utility model transfusion automatic calling unit electricity principle schematic.
Fig. 5 is this utility model transfusion automatic calling unit light path principle figure.
The specific embodiment
With reference to the accompanying drawings and in conjunction with the embodiments this utility model is described in further detail.But this utility model is not limited to given example.
As Fig. 1, Fig. 2, shown in Figure 3, originally be to use the novel infusion automatic calling unit, form and comprise housing 1, suspension rod 2, luminous tube G
1, light absorption pipe G
2And warning circuit, as shown in Figure 3, peg 2 hangs on the hook 9, has dropping funnel hole 11 in the housing 1, dropping funnel hole 11 inwalls have light-emitting hole 12 and the light-receiving hole 13 that is aligned with each other, the straight line that light-emitting hole 12 and light-receiving hole 13 are linked to be is 6R/17≤h≤16R/17 to the scope of the distance h of dropping funnel 3 central shafts, be the dropping funnel radius wherein for R, dropping funnel is the dropping funnel of the diameter that uses of present hospital as 17mm among the embodiment, therefore the scope of h is 3mm≤h≤8mm, and through experiment repeatedly, the straight line that light-emitting hole 12 and light-receiving hole 13 are linked to be is 10R/17≤h≤16R/17 to the optimum range of the distance h of dropping funnel 3 central shafts, adopting diameter is the dropping funnel of 17mm, and then the optimum range of h then is 5mm≤h≤8mm.In the present embodiment, warning circuit comprises alarm lamp D
2With buzzer F, 5 is on and off switch, D
1Be power supply indicator, 10 is infusion bottle, and 4 is infusion tube; As shown in Figure 4, for originally being that K is switch, R among the figure with novel electric principle schematic
1, R
2Be current-limiting resistance, D
1Be power supply indicator, D
2For alarm lamp, F are buzzer, G
1Be luminous tube, G
2For the light absorption pipe, work as switch closure, power supply indicator D
1Light luminous tube G
1Luminous, if this ray cast is to light absorption pipe G
2On, this moment, warning circuit was connected, alarm lamp D
2Lighted, buzzer F sends chimes of doom simultaneously, reminds nurse or related personnel in time to handle.
Be illustrated in figure 5 as light path principle figure of the present utility model, among the figure, G
1Be luminous tube, G
2For light absorption pipe, 12 is that light-emitting hole, 13 is that light-receiving hole, 3 is dropping funnel, when liquid level is higher than the path channels of light-emitting hole and the formation of light-receiving hole, G
1The light that luminous tube penetrates produces refraction after light-emitting hole enters dropping funnel, refractive light ob takes place can't enter the light-receiving hole; When liquid level in the dropping funnel descended and is lower than above-mentioned path channels, light oa did not reflect in dropping funnel, from entering the light-receiving hole, and was incident upon light absorption pipe G
2On, light path is connected, and sends alarm signal.
As Fig. 1, Fig. 2, embodiment shown in Figure 3, dropping funnel hole 11 is an open slot, the width of notch 112 is greater than the infusion tube external diameter and less than the external diameter of dropping funnel, such structure is convenient to dropping funnel and is entered the dropping funnel hole, during installation, the infusion tube of dropping funnel 3 bottoms is entered the dropping funnel hole along notch 112, then dropping funnel 3 is inserted dropping funnel hole 11 and get final product.
For the ease of allowing dropping funnel 3 and housing keep relative static, among Fig. 1, the embodiment shown in Figure 2, the diameter of 11 bottoms 111, dropping funnel hole is greater than the infusion tube external diameter and less than the external diameter of dropping funnel, the bottom of dropping funnel is held in the bottom 111 in dropping funnel hole 11, both can not become flexible slippage, and can prevent accident from pulling infusion tube to a certain extent and the malpractice that causes.
In order to obtain collimated light beam, avoid light in path channels, to reach the interference of emission reflection in the turnover dropping funnel wall process, diffraction, through testing repeatedly, testing, obtain the width of path channels, promptly the diameter optimum range in light-emitting hole, light-receiving hole is 1.2mm～1.5mm; The length in light-emitting hole, light-receiving hole can be avoided the interference of extraneous light more preferably greater than 10mm.
Luminous tube is selected the far-infrared light-emitting diode, and the light of its ejaculation is far red light, though the far red light refractive index is little, it can avoid the interference of visible light, prevents to produce misoperation.
Originally be with novel be to report to the police by sound, light, remind patient or entourage to notify the nurse to handle, on this basis, can also expand the wireless automatic alarming function, be to have wireless signal transmitter in the warning circuit, alarm signal is sent on the wireless signal receiver of the wireless signal receiver of main frame or operating beds calling device, the nurse can obtain information during the very first time, and in time handles.
Model, the parameter of this utility model main circuit device are as follows:
Power supply: 3V direct current (No. 5 aneroid battery of 2 joints);
Current-limiting resistance R
1, R
2: 51 Ω, 1W;
Luminous tube G
1: far-infrared light-emitting diode 2CR5308;
Light absorption pipe G
2: photosensitive tube BPW1 7N;
Power supply indicator D
1, alarm lamp D
2: the 3mm light emitting diode;
Buzzer F:3V, HYSZ
Claims (8)
1, transfusion automatic calling unit, form and comprise housing, suspension rod, luminous tube, light absorption pipe and warning circuit, it is characterized in that having the dropping funnel hole in the described housing, dropping funnel hole inwall has light-emitting hole and the light-receiving hole that is aligned with each other, the straight line that light-emitting hole and light-receiving hole are linked to be is 6R/17≤h≤16R/17 to the scope of the distance h of dropping funnel central shaft, and wherein R is the dropping funnel radius.
2, transfusion automatic calling unit according to claim 1 is characterized in that straight line that light-emitting hole and light-receiving hole be linked to be is 10R/17≤h≤16R/17 to the scope of the distance h of dropping funnel central shaft, and wherein R is the dropping funnel radius.
3, transfusion automatic calling unit according to claim 1 and 2 is characterized in that described suspension rod is a telescopic boom.
4, transfusion automatic calling unit according to claim 1 and 2 is characterized in that described dropping funnel hole is an open slot.
5, transfusion automatic calling unit according to claim 1 and 2, the lower diameter that it is characterized in that described dropping funnel hole is greater than the infusion tube external diameter and less than the external diameter of dropping funnel.
6, transfusion automatic calling unit according to claim 1 and 2, the diameter range that it is characterized in that described light-emitting hole, light-receiving hole is 1.2mm～1.5mm.
7, transfusion automatic calling unit according to claim 1 and 2 is characterized in that described luminous tube is the far-infrared light-emitting diode.
8, transfusion automatic calling unit according to claim 1 and 2 is characterized in that having wireless signal transmitter in the warning circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200339923U CN200998469Y (en) | 2007-02-02 | 2007-02-02 | Calling device-accessory for transfusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200339923U CN200998469Y (en) | 2007-02-02 | 2007-02-02 | Calling device-accessory for transfusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200998469Y true CN200998469Y (en) | 2008-01-02 |
Family
ID=39012876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200339923U Expired - Fee Related CN200998469Y (en) | 2007-02-02 | 2007-02-02 | Calling device-accessory for transfusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200998469Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102475934A (en) * | 2010-11-20 | 2012-05-30 | 沈永培 | Light-operated safe infusion device |
| CN102526836A (en) * | 2011-12-16 | 2012-07-04 | 司立众 | Centralized monitoring system for transfusion and main physical signs of patient |
| CN104736992A (en) * | 2012-08-30 | 2015-06-24 | Lts勒曼治疗***股份公司 | Test device for dispensing a substance into a medium |
| CN105194762A (en) * | 2015-10-12 | 2015-12-30 | 广西壮族自治区人民医院 | Infusion drip cup alarm device |
| CN107497016A (en) * | 2017-09-30 | 2017-12-22 | 中山市民众镇民众中心小学 | A kind of transfusion detecting alarm |
-
2007
- 2007-02-02 CN CNU2007200339923U patent/CN200998469Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102475934A (en) * | 2010-11-20 | 2012-05-30 | 沈永培 | Light-operated safe infusion device |
| CN102475934B (en) * | 2010-11-20 | 2016-03-16 | 沈永培 | Light-operated safe infusion device |
| CN102526836A (en) * | 2011-12-16 | 2012-07-04 | 司立众 | Centralized monitoring system for transfusion and main physical signs of patient |
| CN104736992A (en) * | 2012-08-30 | 2015-06-24 | Lts勒曼治疗***股份公司 | Test device for dispensing a substance into a medium |
| CN105194762A (en) * | 2015-10-12 | 2015-12-30 | 广西壮族自治区人民医院 | Infusion drip cup alarm device |
| CN107497016A (en) * | 2017-09-30 | 2017-12-22 | 中山市民众镇民众中心小学 | A kind of transfusion detecting alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20140202 |