CN203329129U - Transfusion alarm - Google Patents
Transfusion alarm Download PDFInfo
- Publication number
- CN203329129U CN203329129U CN2013203168753U CN201320316875U CN203329129U CN 203329129 U CN203329129 U CN 203329129U CN 2013203168753 U CN2013203168753 U CN 2013203168753U CN 201320316875 U CN201320316875 U CN 201320316875U CN 203329129 U CN203329129 U CN 203329129U
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- transfusion
- outfan
- acousto
- multivibrator
- cavity
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Abstract
The utility model discloses a transfusion alarm which comprises a contact pin. The contact pin comprises a transfusion pin head and a transfusion pipe. A cavity for containing medicine liquid is arranged between the transfusion pin head and the transfusion pipe. The cavity is communicated with external space through a gas conducting pipe. The transfusion alarm further comprises a circuit board. Two metal probes are arranged on a cavity body. One end of each metal probe is installed in the cavity, while the other end of the metal probe is connected to the circuit board. According to the transfusion alarm, the two metal probes are used for detecting the amount of medicine liquid in the cavity of the contact pin. When the medicine liquid between the two metal probes drains out, the circuit board detects the state information through the metal probes and meanwhile emits light and sound prompt.
Description
Technical field
This utility model relates to the suggestion device for medical transfusion, relates in particular to a kind of transfusion indicator.
Background technology
At present, when infusion treatment is carried out to patient in hospital or clinic, infusion process often will expend the long period, if infused, but can not in time medicine bottle be pulled out, will cause unnecessary injury to clients, generation for fear of this phenomenon, various types of infusion alarms have appearred on market, existing infusion alarm adopts gravity principle, law of buoyancy, Infrared refraction principle to realize reporting to the police more, wherein, because the medicinal liquid weight of different capabilities is inconsistent, so adopt the method for measuring medicinal liquid weight, both inconvenience was also inaccurate; Simultaneously, use the method for law of buoyancy to place a float in medicinal liquid, this float easily pollutes medicinal liquid and has unsafe factor; In addition, the Infrared refraction principle is to be slanted through the pipeline of transfusion device with a branch of infrared light, when liquid medicine drips off, infrared light is by the medicinal liquid liquid level of process refraction trigger alarm, therefore easily by the bubble in extraneous infrared light and transfusion device, disturbed and cause erroneous judgement, and the pipeline of some transfusion device belongs to matte surface, can produce diffuse-reflectance to infrared light, make it to lose efficacy.In conjunction with above-mentioned some can find out, there are the defects such as safety is inadequate, reliability is not enough, poor compatibility, poor practicability in existing infusion alarm, so that fail wide popularization and application.
The utility model content
The technical problems to be solved in the utility model is, a kind of transfusion indicator is provided, this transfusion indicator is detected the amount of liquid medicine in the cavity of contact pin by two metal probes, when the medicinal liquid between two metal probes flows to end, wiring board detects this status information by this metal probe, sends sound, light prompting simultaneously.
For solving the problems of the technologies described above, this utility model adopts following technical scheme.
A kind of transfusion indicator, it includes a contact pin, this contact pin includes an infusion needle and a tube for transfusion, be provided with a cavity for accommodating medicinal liquid between the two, described cavity is communicated with space outerpace by an airway, this transfusion indicator also includes a wiring board, the cavity of described cavity is provided with two metal probes, one end of each metal probe is positioned at cavity, its other end is electrically connected on wiring board, described wiring board is provided with a power supply BT, one phase inverter U1A, one diode D1, one multivibrator and an acousto-optic hint unit, a positive pole that is connected in power supply BT in two metal probes, another in two metal probes is connected in the negative pole of power supply BT by resistance R 1, this metal probe is connected with the input of phase inverter U1A with the junction point of resistance R 1, the outfan of this phase inverter U1A is connected with the negative electrode of diode D1, the anode of diode D1 is connected with the input of multivibrator, the outfan of described multivibrator is connected with the acousto-optic hint unit, described multivibrator for producing the self-oscillation signal when disturbance appears in its input signal, and this self-oscillation signal is transferred to the acousto-optic hint unit to make the acousto-optic hint unit send acousto-optic hint.
Preferably, described multivibrator includes a phase inverter U1B and an inverter group, described inverter group consists of a plurality of phase inverters parallel with one another, the input of described phase inverter U1B is connected with the anode of diode D1, its outfan is connected with the input of inverter group, the outfan of described inverter group is connected with the acousto-optic hint unit, the input of described phase inverter U1B is by resistance R 2 and capacitor C 2 outfan that is connected in inverter group of series connection successively, and the junction point of described resistance R 2 and capacitor C 2 is connected in the outfan of reverse U1B by resistance R 3.
Preferably, described acousto-optic hint unit includes a speaker LS, a current-limiting resistance R5 and a luminous tube LED1, successively the current-limiting resistance R5 of series connection and luminous tube LED1 and speaker LS parallel with one another after, be connected between the negative pole of the outfan of multivibrator and power supply BT.
Preferably, between the positive pole of described power supply BT and negative pole, be connected with current-limiting resistance R4 and the luminous tube LED2 connected successively, described luminous tube LED2 is for pointing out the power-up state of complete machine.
Preferably, described metal probe is electrically connected on wiring board by a clip, and the inboard of described clip is provided with two conducting strips, and two conducting strips are connected in wiring board by two wires respectively, when described clip is held on contact pin, two conducting strips are electrically connected to two metal probes respectively.
Preferably, also include a circuit box, described wiring board is located in this circuit box, and described circuit box is provided with a prompt window, and described luminous tube LED1 is arranged in this prompt window.
Preferably, described circuit box is provided with a messenger wire hole.
In the disclosed transfusion indicator of this utility model, when the medicine bottle inner liquid medicine is more, two metal probes are conducting state by medicinal liquid, the input of phase inverter U1A is high level state, its outfan continues low level signal is transferred to the input of multivibrator, multivibrator is nonoscillating state, and the acousto-optic hint unit does not send sound, light prompting; When the medicine bottle inner liquid medicine is totally lost, and while between two metal probes, there is no medicinal liquid, the resistance of the two part does not trend towards infinity, now, the input of phase inverter U1A is low level state, its outfan becomes rapidly high level, make the input of multivibrator disturbance occur, this multivibrator produces the self-oscillation signal by this disturbance, and this self-oscillation transfers to the acousto-optic hint unit and sends sound, light prompting.The beneficial effects of the utility model are, this transfusion indicator is detected the amount of liquid medicine in the cavity of contact pin by two metal probes, it compares existing employing gravity principle, law of buoyancy, the detection mode of Infrared refraction principle, avoided causing detecting mistake because the medicine bottle weight of different capabilities is inconsistent, because float pollutes medicinal liquid and because of bubble, the interference of infrared light is caused the situation appearance of erroneous judgement, by above some can find out, the transfusion indicator the utility model proposes has safety preferably, reliability, compatibility and practicality, being adapted at field of medicaments applies, and there is market prospect preferably.
The accompanying drawing explanation
The circuit theory diagrams that Fig. 1 is wiring board.
The side sectional view that Fig. 2 is contact pin.
The overall structure schematic diagram that Fig. 3 is clip.
The overall structure schematic diagram that Fig. 4 is circuit box.
The specific embodiment
Below in conjunction with drawings and Examples, this utility model is described in more detail.
The utility model discloses a kind of transfusion indicator, shown in Fig. 1 and Fig. 2, it includes a contact pin, and this contact pin includes an infusion needle 1 and a tube for transfusion 11, be provided with a cavity for accommodating medicinal liquid 2 between the two, described cavity 2 is communicated with space outerpace by an airway 3.
This transfusion indicator also includes a wiring board, the cavity of described cavity 2 is provided with two metal probes 2, one end of each metal probe 2 is positioned at cavity 2, its other end is electrically connected on wiring board, described wiring board is provided with a power supply BT, one phase inverter U1A, one diode D1, one multivibrator 12 and an acousto-optic hint unit 13, a positive pole that is connected in power supply BT in two metal probes 2, another in two metal probes 2 is connected in the negative pole of power supply BT by resistance R 1, this metal probe 2 is connected with the input of phase inverter U1A with the junction point of resistance R 1, the outfan of this phase inverter U1A is connected with the negative electrode of diode D1, the anode of diode D1 is connected with the input of multivibrator 12, the outfan of described multivibrator 12 is connected with acousto-optic hint unit 13, described multivibrator 12 for producing the self-oscillation signal when disturbance appears in its input signal, and this self-oscillation is transferred to acousto-optic hint unit 13 to make acousto-optic hint unit 13 send acousto-optic hint.
The operation principle of above-mentioned transfusion indicator is: when the medicine bottle inner liquid medicine is more, two metal probes 2 are conducting state by medicinal liquid, now, power supply BT, two metal probes 2 and resistance R 1 form loop, metal probe 2 is high level state with the junction point of resistance R 1, after this high level is anti-phase by phase inverter U1A, make the anode of diode D1 be constantly low level, multivibrator 12 in nonoscillating state, makes acousto-optic hint unit 13 not send sound, light prompting because of this lasting low level; When the medicine bottle inner liquid medicine is totally lost, and while between two metal probes 2, there is no medicinal liquid, the resistance of the two does not trend towards infinity, now, metal probe 2 is low level state with the junction point of resistance R 1, the outfan of phase inverter U1A becomes high level, make the input of multivibrator 12 disturbance occur, this multivibrator 12 produces the self-oscillation signal by this disturbance, and this self-oscillation signal transfers to acousto-optic hint unit 13 and sends sound, light prompting.
In the present embodiment, described multivibrator 12 includes a phase inverter U1B and an inverter group, described inverter group consists of a plurality of phase inverters parallel with one another, the input of described phase inverter U1B is connected with the anode of diode D1, its outfan is connected with the input of inverter group, the outfan of described inverter group is connected with acousto-optic hint unit 13, the input of described phase inverter U1B is by resistance R 2 and capacitor C 2 outfan that is connected in inverter group of series connection successively, the junction point of described resistance R 2 and capacitor C 2 is connected in the outfan of reverse U1B by resistance R 3.Wherein, when between two metal probes 2, medicinal liquid being arranged, phase inverter U1A carries out reverse process by the high level signal of its input, output low level afterwards, make phase inverter U1B output high level and this high level charge to capacitor C 2 by resistance R 3, and remain on charged state under the afterflow effect of diode D1.When between two metal probes 2, there is no medicinal liquid, phase inverter U1A carries out anti-phase processing by the low level signal of its input, export afterwards high level, diode D1 is cut-off state, and capacitor C 2 is by resistance R 2 electric discharges, make the input terminal voltage of phase inverter U1B be increased to high level, its outfan becomes rapidly low level, and the outfan of inverter group is rapidly high level, now, multivibrator enters the first temporary stable state, and capacitor C 2 is by resistance R 3 electric discharges, afterwards, the high level of inverter group outfan is to capacitor C 2 reverse chargings, the input terminal voltage of phase inverter U1B constantly descends and while dropping to its low voltage threshold, its outfan moment output high level, the outfan moment output low level of inverter group, now, multivibrator enters the second transient state, the high level of phase inverter U1B output charges to capacitor C 2 by resistance R 3, repetitiousness ground, make the outfan of inverter group produce because of the first transient state and the second transient state replaced the oscillator signal that height changes, and drive the acousto-optic hint unit to send sound by this oscillator signal, the light prompting.
In the present embodiment, described acousto-optic hint unit 13 includes a speaker LS, a current-limiting resistance R5 and a luminous tube LED1, successively the current-limiting resistance R5 of series connection and luminous tube LED1 and speaker LS parallel with one another after, be connected between the negative pole of the outfan of multivibrator 12 and power supply BT.Be connected with current-limiting resistance R4 and the luminous tube LED2 connected successively between the positive pole of described power supply BT and negative pole, described luminous tube LED2 is for pointing out the power-up state of complete machine.Wherein, speaker LS is with the predeterminated frequency prompting of sounding under the effect of above-mentioned oscillator signal, and simultaneously, luminous tube LED1 sends flash for prompting.
For the ease of operation, in conjunction with shown in Fig. 1 to Fig. 4, described metal probe 2 is electrically connected on wiring board by a clip 5, the inboard of described clip 5 is provided with two conducting strips 6, two conducting strips 6 are connected in wiring board by two wires 7 respectively, when described clip 5 is held on contact pin, two conducting strips 6 are electrically connected to two metal probes 4 respectively.This transfusion alarm device also includes a circuit box 8, and described wiring board is located in this circuit box 8, and described circuit box 8 is provided with a prompt window 10, and described luminous tube LED1 is arranged in this prompt window 10.Described circuit box 8 is provided with a messenger wire hole 9, and by this messenger wire hole 9, circuit box 8 is hung on to appropriate location.
In the disclosed transfusion indicator of this utility model, when the medicine bottle inner liquid medicine is more, two metal probes 2 are conducting state by medicinal liquid, the input of phase inverter U1A is high level state, its outfan continues low level signal is transferred to the input of multivibrator 12, multivibrator 12 is nonoscillating state, and acousto-optic hint unit 13 does not send sound, light prompting; When the medicine bottle inner liquid medicine is totally lost, and while between two metal probes 2, there is no medicinal liquid, the resistance of the two part does not trend towards infinity, now, the input of phase inverter U1A is low level state, its outfan becomes rapidly high level, make the input of multivibrator 12 disturbance occur, this multivibrator 12 produces the self-oscillation signal by this disturbance, and this self-oscillation transfers to acousto-optic hint unit 13 and sends sound, light prompting.This transfusion indicator is detected the amount of liquid medicine in the cavity 2 of contact pin by two metal probes, it compares existing employing gravity principle, law of buoyancy, the detection mode of Infrared refraction principle, avoided causing detecting mistake because the medicine bottle weight of different capabilities is inconsistent, because float pollutes medicinal liquid and because of bubble, the interference of infrared light is caused the situation appearance of erroneous judgement, by above some can find out, the transfusion indicator the utility model proposes has safety preferably, reliability, compatibility and practicality, being adapted at field of medicaments applies, and there is market prospect preferably.
The above is this utility model preferred embodiment, is not limited to this utility model, all modifications of making in technical scope of the present utility model, is equal to and replaces or improvement etc., all should be included in the scope that this utility model protects.
Claims (7)
1. a transfusion indicator, it includes a contact pin, this contact pin includes an infusion needle (1) and a tube for transfusion (11), be provided with a cavity for accommodating medicinal liquid (2) between the two, described cavity (2) is communicated with space outerpace by an airway (3), it is characterized in that, also include a wiring board, the cavity of described cavity (2) is provided with two metal probes (2), one end of each metal probe (2) is positioned at cavity (2), its other end is electrically connected on wiring board, described wiring board is provided with a power supply BT, one phase inverter U1A, one diode D1, one multivibrator (12) and an acousto-optic hint unit (13), a positive pole that is connected in power supply BT in two metal probes (2), another in two metal probes (2) is connected in the negative pole of power supply BT by resistance R 1, this metal probe (2) is connected with the input of phase inverter U1A with the junction point of resistance R 1, the outfan of this phase inverter U1A is connected with the negative electrode of diode D1, the anode of diode D1 is connected with the input of multivibrator (12), the outfan of described multivibrator (12) is connected with acousto-optic hint unit (13), described multivibrator (12) for producing the self-oscillation signal when disturbance appears in its input signal, and this self-oscillation signal is transferred to acousto-optic hint unit (13) to make acousto-optic hint unit (13) send acousto-optic hint.
2. transfusion indicator as claimed in claim 1, it is characterized in that, described multivibrator (12) includes a phase inverter U1B and an inverter group, described inverter group consists of a plurality of phase inverters parallel with one another, the input of described phase inverter U1B is connected with the anode of diode D1, its outfan is connected with the input of inverter group, the outfan of described inverter group is connected with acousto-optic hint unit (13), the input of described phase inverter U1B is by resistance R 2 and capacitor C 2 outfan that is connected in inverter group of series connection successively, the junction point of described resistance R 2 and capacitor C 2 is connected in the outfan of reverse U1B by resistance R 3.
3. transfusion indicator as claimed in claim 1, it is characterized in that, described acousto-optic hint unit (13) includes a speaker LS, a current-limiting resistance R5 and a luminous tube LED1, successively the current-limiting resistance R5 of series connection and luminous tube LED1 and speaker LS parallel with one another after, be connected between the negative pole of the outfan of multivibrator (12) and power supply BT.
4. transfusion indicator as claimed in claim 1, is characterized in that, between the positive pole of described power supply BT and negative pole, is connected with current-limiting resistance R4 and the luminous tube LED2 connected successively, and described luminous tube LED2 is for pointing out the power-up state of complete machine.
5. transfusion indicator as claimed in claim 1, it is characterized in that, described metal probe (2) is electrically connected on wiring board by a clip (5), the inboard of described clip (5) is provided with two conducting strips (6), two conducting strips (6) are connected in wiring board by two wires (7) respectively, when described clip (5) is held on contact pin, two conducting strips (6) are electrically connected to two metal probes (4) respectively.
6. transfusion indicator as claimed in claim 3, it is characterized in that, also include a circuit box (8), described wiring board is located in this circuit box (8), described circuit box (8) is provided with a prompt window (10), and described luminous tube LED1 is arranged in this prompt window (10).
7. transfusion indicator as claimed in claim 6, is characterized in that, described circuit box (8) is provided with a messenger wire hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203168753U CN203329129U (en) | 2013-06-04 | 2013-06-04 | Transfusion alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203168753U CN203329129U (en) | 2013-06-04 | 2013-06-04 | Transfusion alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203329129U true CN203329129U (en) | 2013-12-11 |
Family
ID=49697833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203168753U Expired - Fee Related CN203329129U (en) | 2013-06-04 | 2013-06-04 | Transfusion alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203329129U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964022A (en) * | 2017-03-13 | 2017-07-21 | 西南交通大学 | transfusion monitoring device |
| CN109172940A (en) * | 2018-06-07 | 2019-01-11 | 石从永 | A kind of transfusion detection device |
-
2013
- 2013-06-04 CN CN2013203168753U patent/CN203329129U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964022A (en) * | 2017-03-13 | 2017-07-21 | 西南交通大学 | transfusion monitoring device |
| CN106964022B (en) * | 2017-03-13 | 2023-05-26 | 西南交通大学 | Infusion monitoring device |
| CN109172940A (en) * | 2018-06-07 | 2019-01-11 | 石从永 | A kind of transfusion detection device |
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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: 20131211 Termination date: 20140604 |