CN102872501B - Miniaturized intelligent infusion monitoring circuit and monitor - Google Patents
Miniaturized intelligent infusion monitoring circuit and monitor Download PDFInfo
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- CN102872501B CN102872501B CN201210362304.3A CN201210362304A CN102872501B CN 102872501 B CN102872501 B CN 102872501B CN 201210362304 A CN201210362304 A CN 201210362304A CN 102872501 B CN102872501 B CN 102872501B
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Abstract
The invention discloses a miniaturized intelligent infusion monitoring circuit and a monitor. The monitoring circuit comprises a direct-current power supply, an infrared emission tube, a photosensitive tube, a switching tube, a detection resistor and a prompt device, wherein the direct-current power supply supplies power to the whole monitoring circuit; the infrared emission tube acquires voltage supply from the direct-current power supply; the cathode of the photosensitive tube is connected to the direct-current power supply and the anode of the photosensitive tube is grounded through the detection resistor; a switch channel of the switching tube is connected with the direct-current power supply and the prompt device, and the control end of the switching tube is connected to the anode of the photosensitive tube; when the detection resistor has high level, the switching tube is off; and when the detection resistor has low level, the switching tube is on. The infrared emission tube and the photosensitive tube detect the liquid state in an infusion tube, the on/off of the switching tube is controlled by the voltage of the detection resistor connected in series with the photosensitive tube, a prompt function is realized, and the whole circuit only requires a small-power direct-current power supply, so that the whole monitor is miniaturized; moreover, the measurement accuracy is high, the reaction speed is high and the monitoring prompt is striking.
Description
Technical field
The present invention relates to medical equipment technical field, be specifically related to a kind of microminiaturized intelligent transfusion supervisory circuit and apply the watch-dog of this microminiaturization intelligent transfusion supervisory circuit.
Background technology
Current infusion monitor all needs Alternating Current Power Supply, and this forceful electric power power supply has reduced safety undoubtedly, has increased electromagnetic radiation, and external receptacle must be connected with machine.This watch-dog cost is more expensive, and weight is heavier, and volume is large, is unfavorable for operation and promotes, and needing more energy resource consumption.
Summary of the invention
The embodiment of the present invention provides a kind of microminiaturized intelligent transfusion supervisory circuit, can address the above problem.
The microminiaturized intelligent transfusion supervisory circuit that the embodiment of the present invention provides, comprising: DC source VCC, and infrared transmitting tube D1, photosensitive tube D2, switching tube Q1, detects resistance R 1 and the suggestion device for generation of prompt tone and/or prompting optical signal; Wherein, DC source VCC powers to whole supervisory circuit; Infrared transmitting tube D1 obtains voltage from DC source VCC and supplies with, and for launching infrared light, wears and penetrates tube for transfusion and be irradiated to photosensitive tube D2; The negative electrode of photosensitive tube D2 is connected to DC source VCC, and the anode of photosensitive tube D2 is resistance R 1 ground connection after testing; The switch passage of switching tube Q1 connects DC source VCC and suggestion device, and the control end of switching tube Q1 is connected to the anode of photosensitive tube D2, when detection resistance R 1 is high level, and switching tube Q1 cut-off, when detection resistance R 1 is low level, switching tube Q1 conducting; This circuit also comprises a low-voltage cue circuit, and described low-voltage cue circuit comprises: the clamper unit being followed in series to form by multiple diodes, positive-negative-positive audion Q2, NPN type audion Q3, LED 2; Clamper unit is connected to DC source VCC by current-limiting resistance R2, the base stage of positive-negative-positive audion Q2 is connected to the node of clamper unit and current-limiting resistance R2 by current-limiting resistance R3, the emitter stage of positive-negative-positive audion Q2 is connected to DC source VCC, and the colelctor electrode of positive-negative-positive audion Q2 is by current-limiting resistance R5 ground connection; The colelctor electrode of positive-negative-positive audion Q2 is connected to the base stage of NPN type audion Q3 by current-limiting resistance R4, the base stage of NPN type audion Q3 is by biasing resistor R6 ground connection, the colelctor electrode of NPN type audion Q3 is connected to DC source VCC by current-limiting resistance R7, the grounded emitter of NPN type audion Q3, the anodic bonding of LED 2 is to the colelctor electrode of NPN type audion Q3, the minus earth of LED 2.
Preferably, the colelctor electrode of positive-negative-positive audion Q2 is also connected to the control end of switching tube Q1 by resistance R 8.
Preferably, described clamper unit is followed in series to form by diode D3, diode D4, diode D5.
Preferably, described suggestion device comprises: resistance R 11, resistance R 12, resistance R 13, resistance R 14, capacitor C 1, capacitor C 2, audion Q5, audion Q6, buzzer LS, capacitor C 1 is connected between audion Q5 colelctor electrode and audion Q6 base stage, capacitor C 2 is connected between audion Q6 colelctor electrode and audion Q5 base stage, the two ends of capacitor C 1 are connected to respectively the outfan of switching tube Q1 switch passage by resistance R 11 and resistance R 12, the two ends of capacitor C 2 are connected to respectively the outfan of switching tube Q1 switch passage by resistance R 13 and resistance R 14, the equal ground connection of emitter stage of audion Q5 and audion Q6, buzzer LS is connected between the colelctor electrode and emitter stage of audion Q6.
Preferably, between the colelctor electrode of described audion Q5 and emitter stage, be also connected with a LED 3.
Preferably, the outfan of described DC source VCC is connected in series an on and off switch S1.
Preferably, between described on and off switch S1 and ground, be connected in series a LED 1 and current-limiting resistance R10.
The embodiment of the present invention also provides a kind of microminiaturized intelligent transfusion watch-dog, comprise any one microminiaturized intelligent transfusion supervisory circuit in shell and above-described embodiment, described microminiaturized intelligent transfusion supervisory circuit is printed on pcb board, described pcb board is installed in the enclosure, the front of shell is provided with a groove for accommodating tube for transfusion, and infrared transmitting tube D1 and photosensitive tube D2 are installed respectively in the two side of groove on relative position.
Preferably, on the edge of described shell pivot joint one for hiding the cover plate of described groove.
Technique scheme can be found out, because adopting infrared transmitting tube and photosensitive tube, the embodiment of the present invention detects the liquid condition in tube for transfusion, and with the conducting of the ohmically voltage cut-out pipe of detection of connecting with photosensitive tube, thereby the power supply supply of connecting suggestion device realizes prompt facility, therefore, whole circuit only needs small power DC power supply to realize, and makes the volume of whole watch-dog obtain microminiaturization, and certainty of measurement standard, response speed is fast, and monitor prompt is eye-catching.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the circuit theory diagrams of the microminiaturized intelligent transfusion supervisory circuit in the embodiment of the present invention one;
Fig. 2 is the circuit theory diagrams of the microminiaturized intelligent transfusion supervisory circuit in the embodiment of the present invention two;
Fig. 3 is the blast structural representation of the microminiaturized intelligent transfusion watch-dog in the embodiment of the present invention three.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-:
The embodiment of the present invention provides a kind of microminiaturized intelligent transfusion supervisory circuit, as shown in Figure 1, comprising: DC source VCC, and infrared transmitting tube D1, photosensitive tube D2, switching tube Q1, detects resistance R 1 and the suggestion device for generation of prompt tone and/or prompting optical signal; Wherein, DC source VCC powers to whole supervisory circuit; Infrared transmitting tube D1 obtains voltage from DC source VCC and supplies with, and for launching infrared light, wears and penetrates tube for transfusion and be irradiated to photosensitive tube D2; The negative electrode of photosensitive tube D2 is connected to DC source VCC, and the anode of photosensitive tube D2 is resistance R 1 ground connection after testing; The switch passage of switching tube Q1 connects DC source VCC and suggestion device, and the control end of switching tube Q1 is connected to the anode of photosensitive tube D2, when detection resistance R 1 is high level, and switching tube Q1 cut-off, when detection resistance R 1 is low level, switching tube Q1 conducting.
Be understandable that, the switch passage of switch is the input of connecting valve and the passage of outfan, and the control end of switch is to control the conducting of whole switch passage and cut-off.For example, positive-negative-positive triode switch, its switch passage is to consist of emitter stage and colelctor electrode, its control end is base stage.
Be understandable that, suggestion device is for sending cue to medical personnel, and this cue can be independent auditory tone cues signal, as buzzer; Also can be independent light cue, as red signal light; It can certainly be the dual cue that simultaneously has acoustical signal and optical signal, suggestion device in embodiments of the present invention adopts the circuit of buzzer and light emitting diode composition, for concrete circuit structure those skilled in the art, can design the circuit with acoustooptic prompting function by prior art, repeat no longer one by one herein.
DC source VCC can adopt button battery, can certainly adopt dry cell power supply, and the DC source VCC in the embodiment of the present invention is button battery.
The outfan of the VCC of DC source described in the embodiment of the present invention is connected in series an on and off switch S1, and for controlling the work start and stop of whole supervisory circuit, the on and off switch S1 in the embodiment of the present invention adopts thumb-acting switch.
In order to make operator, know the duty of infusion monitor, between described on and off switch S1 and ground, be connected in series a LED 1 and current-limiting resistance R10, when on and off switch S1 connects, LED 1 can be luminous, alert power supply is in on-state, and infusion monitor starts.In order to prevent that short-circuit state from appearring in whole monitoring infusion circuit, after on and off switch S1, also sealed in an electric fuse F.
Infrared transmitting tube D1 provides running voltage by DC source VCC, in order to prevent that the situation of being burnt from may appear in infrared transmitting tube D1 because electric current is excessive, understand the current-limiting resistance of connecting on infrared transmitting tube, as the current-limiting resistance R9 that connected on infrared transmitting tube D1 in the embodiment of the present invention.
Switching tube Q1 in the embodiment of the present invention selects positive-negative-positive crystal triode, when the base stage of this positive-negative-positive crystal triode is during in low level state, and the conducting of positive-negative-positive crystal triode.
Below in conjunction with Fig. 1, the operation principle of the supervisory circuit in the embodiment of the present invention is made to introduction.
When on and off switch S1 connects, DC source VCC is to whole circuit supply, infrared transmitting tube D1 sends infrared light, if now there is liquid in tube for transfusion, the infrared light of infrared transmitting tube D1 sees through tube for transfusion and is irradiated to photosensitive tube D2 above, and the electric current flowing through on photosensitive tube D2 increases, and the voltage that is connected on the detection resistance R 1 on photosensitive tube D2 raises, therefore select the switching tube Q1 of PNP transistor in cut-off state, suggestion device and DC source VCC isolate in off position.If now there is no liquid in tube for transfusion, when the infrared light of infrared transmitting tube D1 sees through tube for transfusion, its infrared light is weakened, photosensitive tube D2 receives faint infrared light, therefore the electric current flowing through on photosensitive tube D2 reduces, and the voltage being connected in the detection resistance R 1 on photosensitive tube D2 becomes low level, therefore selects the switching tube Q1 of PNP transistor in conducting state, the running voltage of suggestion device acquisition DC source VCC is in running order, sends acousto-optic hint signal.
Be understandable that, in the embodiment of the present invention, switching tube Q1 a kind ofly applies at control end the switch that low level is conducting, and therefore, switching tube Q1 is not limited to PNP transistor, also can select N-MOS pipe, does not enumerate herein.
By technique scheme, can find out, the embodiment of the present invention only adopts several simple semiconductor devices to realize the monitoring to transfusion liquid in pipe, therefore the volume of infusion monitor can be accomplished to microminiaturization, easy to utilize; Simultaneously because used element greatly reduces, therefore more energy-conservation.
Embodiment bis-:
Because existing watch-dog is when electric weight is too low, watch-dog can lose prompt facility, and therefore, the embodiment of the present invention, on the basis of above-described embodiment one, is made improvement.
In the embodiment of the present invention, increased by a low-voltage cue circuit, as shown in Figure 2, described low-voltage cue circuit comprises: the clamper unit being followed in series to form by multiple diodes, positive-negative-positive audion Q2, NPN type audion Q3, LED 2; Clamper unit is connected to DC source VCC by current-limiting resistance R2, the base stage of positive-negative-positive audion Q2 is connected to the node of clamper unit and current-limiting resistance R2 by current-limiting resistance R3, the emitter stage of positive-negative-positive audion Q2 is connected to DC source VCC, and the colelctor electrode of positive-negative-positive audion Q2 is by current-limiting resistance R5 ground connection; The colelctor electrode of positive-negative-positive audion Q2 is connected to the base stage of NPN type audion Q3 by current-limiting resistance R4, the base stage of NPN type audion Q3 is by biasing resistor R6 ground connection, the colelctor electrode of NPN type audion Q3 is connected to DC source VCC by current-limiting resistance R7, the grounded emitter of NPN type audion Q3, the anodic bonding of LED 2 is to the colelctor electrode of NPN type audion Q3, the minus earth of LED 2; The colelctor electrode of positive-negative-positive audion Q2 is also connected to the control end of switching tube Q1 by resistance R 8.
Effect is for the base stage of positive-negative-positive audion Q2 is carried out to clamper, therefore the number of diodes of series connection has determined the level of clamp voltage, the clamper unit of the embodiment of the present invention is followed in series to form by diode D3, diode D4, diode D5, for example, in the embodiment of the present invention, DC source VCC adopts 5V running voltage, and the forward bias voltage of the diode D3 selecting, diode D4, diode D5 is 0.8V, the clamp voltage of clamper unit is 2.4V.Therefore, when DC source VCC is normal, the emitter stage of transistor Q2 and the junction voltage of base stage are 5V-2.4V=2.6V, transistor Q2 is in conducting state, voltage on biasing resistor R6 is high level, and transistor Q3 is switched on, therefore, be connected in parallel on LED 2 on transistor Q3 by short circuit, in off position.When DC source VCC electric weight is not enough, for example its supply voltage is reduced to 2.5V, the emitter voltage of transistor Q2 is 2.5V, and the base voltage of transistor Q2 is 2.4V by clamper, the emitter stage of transistor Q2 and the junction voltage of base stage are 0.1V, transistor Q2 can end, voltage on biasing resistor R6 is low level, transistor Q3 is cut off, LED 2 obtains the running voltage of DC source VCC by current-limiting resistance R7, in running order, sends bright alert, battery electric quantity is too low, need to change battery.
For when there is low electric weight in DC source VCC, can start suggestion device points out, in the embodiment of the present invention, the colelctor electrode of positive-negative-positive audion Q2 is also connected to the control end of switching tube Q1 by resistance R 8, during transistor Q2 cut-off, voltage on current-limiting resistance R5 is low level, by resistance R 8, the control end of switching tube Q1 is applied to low level, switching tube Q1 conducting, thereby startup suggestion device, is convenient to further alert.
For the suggestion device microminiaturization to the embodiment of the present invention, described suggestion device comprises: resistance R 11, resistance R 12, resistance R 13, resistance R 14, capacitor C 1, capacitor C 2, audion Q5, audion Q6, buzzer LS, capacitor C 1 is connected between audion Q5 colelctor electrode and audion Q6 base stage, capacitor C 2 is connected between audion Q6 colelctor electrode and audion Q5 base stage, the two ends of capacitor C 1 are connected to respectively the outfan of switching tube Q1 switch passage by resistance R 11 and resistance R 12, the two ends of capacitor C 2 are connected to respectively the outfan of switching tube Q1 switch passage by resistance R 13 and resistance R 14, the equal ground connection of emitter stage of audion Q5 and audion Q6, buzzer LS is connected between the colelctor electrode and emitter stage of audion Q6.
For realize sound and light signal time prompting, the embodiment of the present invention is also also connected with a LED 3 between the colelctor electrode of audion Q5 and emitter stage, by optical signal alert.
By technique scheme, can find out, the embodiment of the present invention has increased low-voltage prompt facility on the basis of embodiment mono-, and suggestion device carries out Reduced Design, adopts to wait to swing circuit and provide stable oscillator signal to buzzer and LED 3.
Embodiment tri-:
Based on the microminiaturized intelligent transfusion supervisory circuit in above-described embodiment, the embodiment of the present invention provides a kind of microminiaturized intelligent transfusion watch-dog, as shown in Figure 3, comprise the microminiaturized intelligent transfusion supervisory circuit in shell 1 and above-described embodiment two, described microminiaturized intelligent transfusion supervisory circuit is printed on pcb board 3, described pcb board 3 is arranged in shell 1, the front of shell 1 is provided with a groove 11 for accommodating tube for transfusion, and the two side of groove 11 installs respectively in infrared transmitting tube D1(Fig. 3 31 on relative position) and photosensitive tube D2(Fig. 3 in 32).
During use, tube for transfusion is put in described groove 11, infrared transmitting tube 31 and photosensitive tube 32 are oppositely arranged, and the infrared light that infrared transmitting tube 31 sends can see through tube for transfusion and be irradiated on photosensitive tube 32.
In order to prevent the impact of ambient light on photosensitive tube 32, on the edge of described shell 1, pivot joint one is for hiding the cover plate 2 of described groove 11.On the edge of shell 1, establish this pivot connected slot 13 for pivot joint cover plate 2, cover plate 2 is articulated in this pivot connected slot 13, and meanwhile, placement and the taking-up of tube for transfusion are also convenient in the pivot joint setting of cover plate 2.
Be understandable that, according to the circuit structure of microminiaturized intelligent transfusion supervisory circuit, the structure of microminiaturized intelligent transfusion watch-dog is corresponding with it, for example, in embodiment mono-, microminiaturized intelligent transfusion supervisory circuit does not have low-voltage cue circuit, therefore, microminiaturized intelligent monitoring circuit need to not arrange the hole of this LED 2 on shell.
Because the microminiaturized intelligent transfusion watch-dog in the embodiment of the present invention is that circuit structure based in above-described embodiment two designs, therefore, on shell 1, be also provided with the switch hole 17 for fixed power source switch S, on shell 1, be provided for power supply indicator (in the figure 34) lamp hole 14 of fixing LED 1, on shell 1, be provided for low capacity prompt lamp (in the figure 35) lamp hole 15 of fixing LED 2, on shell 1, be provided for fixing LED 3 without transfusion warning light (in figure 36) lamp hole 16.Above-mentioned lamp hole can be arranged on front or the side of shell, and concrete setting position determines according to the circuit layout on pcb board 3.
In the embodiment of the present invention in buzzer LS(figure 37) be arranged on the bottom surface of pcb board 3, therefore also correspondingly in the bottom of shell 1 be provided with the sound hole (not shown) for playback.
Embodiment of the present invention housing 1 comprises upper shell and lower house, upper shell and lower house snapping, and lower house has a cavity volume 12, can fix pcb board 3.If DC source VCC adopts dry cell power supply, aneroid battery can be contained in cavity volume 12.
In use, only need to open cover plate 2, then tube for transfusion is placed in the groove 11 of infusion monitor, then cover plate 2 covers back original position, turn on the power switch S1.
By technique scheme, can be found out, the infusion monitor in the embodiment of the present invention only needs a shell and a pcb board.Realized microminiaturized design, easy to carry, simple to operate, simultaneously can energy savings.
The microminiaturized intelligent transfusion supervisory circuit of one and the watch-dog that above the embodiment of the present invention are provided are described in detail, applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (9)
1. microminiaturized intelligent transfusion supervisory circuit, is characterized in that, comprising: DC source VCC, and infrared transmitting tube D1, photosensitive tube D2, switching tube Q1, detects resistance R 1 and the suggestion device for generation of prompt tone and/or prompting optical signal; Wherein, DC source VCC powers to whole supervisory circuit; Infrared transmitting tube D1 obtains voltage from DC source VCC and supplies with, and for launching infrared light, wears and penetrates tube for transfusion and be irradiated to photosensitive tube D2; The negative electrode of photosensitive tube D2 is connected to DC source VCC, and the anode of photosensitive tube D2 is resistance R 1 ground connection after testing; The switch passage of switching tube Q1 connects DC source VCC and suggestion device, and the control end of switching tube Q1 is connected to the anode of photosensitive tube D2, when detection resistance R 1 is high level, and switching tube Q1 cut-off, when detection resistance R 1 is low level, switching tube Q1 conducting; Also comprise a low-voltage cue circuit, described low-voltage cue circuit comprises: the clamper unit being followed in series to form by multiple diodes, positive-negative-positive audion Q2, NPN type audion Q3, LED 2; Clamper unit is connected to DC source VCC by current-limiting resistance R2, the base stage of positive-negative-positive audion Q2 is connected to the node of clamper unit and current-limiting resistance R2 by current-limiting resistance R3, the emitter stage of positive-negative-positive audion Q2 is connected to DC source VCC, and the colelctor electrode of positive-negative-positive audion Q2 is by current-limiting resistance R5 ground connection; The colelctor electrode of positive-negative-positive audion Q2 is connected to the base stage of NPN type audion Q3 by current-limiting resistance R4, the base stage of NPN type audion Q3 is by biasing resistor R6 ground connection, the colelctor electrode of NPN type audion Q3 is connected to DC source VCC by current-limiting resistance R7, the grounded emitter of NPN type audion Q3, the anodic bonding of LED 2 is to the colelctor electrode of NPN type audion Q3, the minus earth of LED 2.
2. microminiaturized intelligent transfusion supervisory circuit as claimed in claim 1, is characterized in that: the colelctor electrode of positive-negative-positive audion Q2 is also connected to the control end of switching tube Q1 by resistance R 8.
3. microminiaturized intelligent transfusion supervisory circuit as claimed in claim 1 or 2, is characterized in that, described clamper unit is followed in series to form by diode D3, diode D4, diode D5.
4. microminiaturized intelligent transfusion supervisory circuit as claimed in claim 1 or 2, it is characterized in that, described suggestion device comprises: resistance R 11, resistance R 12, resistance R 13, resistance R 14, capacitor C 1, capacitor C 2, audion Q5, audion Q6, buzzer LS, capacitor C 1 is connected between audion Q5 colelctor electrode and audion Q6 base stage, capacitor C 2 is connected between audion Q6 colelctor electrode and audion Q5 base stage, the two ends of capacitor C 1 are connected to respectively the outfan of switching tube Q1 switch passage by resistance R 11 and resistance R 12, the two ends of capacitor C 2 are connected to respectively the outfan of switching tube Q1 switch passage by resistance R 13 and resistance R 14, the equal ground connection of emitter stage of audion Q5 and audion Q6, buzzer LS is connected between the colelctor electrode and emitter stage of audion Q6.
5. microminiaturized intelligent transfusion supervisory circuit as claimed in claim 4, is characterized in that: between the colelctor electrode of described audion Q5 and emitter stage, be also connected with a LED 3.
6. microminiaturized intelligent transfusion supervisory circuit as claimed in claim 1 or 2, is characterized in that: the outfan of described DC source VCC is connected in series an on and off switch S1.
7. microminiaturized intelligent transfusion supervisory circuit as claimed in claim 6, is characterized in that: between described on and off switch S1 and ground, be connected in series a LED 1 and current-limiting resistance R10.
8. microminiaturized intelligent transfusion watch-dog, it is characterized in that: comprise the microminiaturized intelligent transfusion supervisory circuit described in any one in shell and the claims 1 to 7, described microminiaturized intelligent transfusion supervisory circuit is printed on pcb board, described pcb board is installed in the enclosure, the front of shell is provided with a groove for accommodating tube for transfusion, and infrared transmitting tube D1 and photosensitive tube D2 are installed respectively in the two side of groove on relative position.
9. microminiaturized intelligent transfusion watch-dog as claimed in claim 8, is characterized in that: on the edge of described shell, pivot joint one is for hiding the cover plate of described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362304.3A CN102872501B (en) | 2012-09-25 | 2012-09-25 | Miniaturized intelligent infusion monitoring circuit and monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362304.3A CN102872501B (en) | 2012-09-25 | 2012-09-25 | Miniaturized intelligent infusion monitoring circuit and monitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102872501A CN102872501A (en) | 2013-01-16 |
| CN102872501B true CN102872501B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210362304.3A Expired - Fee Related CN102872501B (en) | 2012-09-25 | 2012-09-25 | Miniaturized intelligent infusion monitoring circuit and monitor |
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| CN (1) | CN102872501B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100127A (en) * | 2013-03-01 | 2013-05-15 | 南基学 | Novel transfusion controller |
| CN112618377A (en) * | 2021-01-05 | 2021-04-09 | 北京麦康医疗器械有限公司 | Infusion pipeline blockage and bubble detection device of enteral nutrition pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836562A (en) * | 1981-08-28 | 1983-03-03 | テルモ株式会社 | Control apparatus for drip amount |
| CN2097005U (en) * | 1991-05-21 | 1992-02-26 | 郎江明 | Mini-infusion monitor |
| CN2548633Y (en) * | 2002-07-03 | 2003-05-07 | 柯爱文 | Infusion flow alarm |
| CN202802365U (en) * | 2012-09-25 | 2013-03-20 | 广州德米医用设备有限公司 | Miniaturized intelligent transfusion monitoring circuit and miniaturized intelligent transfusion monitor |
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2012
- 2012-09-25 CN CN201210362304.3A patent/CN102872501B/en not_active Expired - Fee Related
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Granted publication date: 20140507 Termination date: 20210925 |