CN102889849A - Micro pump distance automatic detection alarm of roller pump - Google Patents
Micro pump distance automatic detection alarm of roller pump Download PDFInfo
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- CN102889849A CN102889849A CN2012103467613A CN201210346761A CN102889849A CN 102889849 A CN102889849 A CN 102889849A CN 2012103467613 A CN2012103467613 A CN 2012103467613A CN 201210346761 A CN201210346761 A CN 201210346761A CN 102889849 A CN102889849 A CN 102889849A
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- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 210000004369 blood Anatomy 0.000 abstract description 10
- 239000008280 blood Substances 0.000 abstract description 10
- 239000010409 thin film Substances 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000003750 conditioning effect Effects 0.000 abstract 3
- 230000005856 abnormality Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 210000003743 erythrocyte Anatomy 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The invention provides a micro pump distance automatic detection alarm of a roller pump. The micro pump distance automatic detection alarm of the roller pump comprises a thin film pressure sensor, a signal conditioning module, a control module and an alarm module, wherein the thin film pressure sensor is arranged between a pump groove and a pump pipe of the roller pump and used for measuring a pressure value of the surface of the pump pipe; the signal conditioning module is electrically connected with the thin film pressure sensor, receives a pressure signal which is measured by the thin film pressure sensor and performs format conversion on the pressure signal; the control module is electrically connected with the signal conditioning module, receives the pressure signal which is subjected to the format conversion, computes according to a pressure signal value to obtain the pressure value and a pump distance value of the roller pump, and compares the pump distance value with a preset threshold value; and the alarm module is electrically connected with the control module and gives an alarm signal under the control of the control module. The micro pump distance automatic detection alarm of the roller pump can measure a micro clearance between a roller shaft and the pump groove in real time and can give an alarm under the condition of abnormality, so blood preparation quality is improved.
Description
Technical field
The present invention relates to medical instruments field, particularly a kind of can the measurement in real time in occlusion pump formula blood salvage system monitored slight clearance between rolling shaft and pump groove, and the device that gives the alarm when needed.
Background technology
Carry, collect blood in the occlusion pump mode and have the advantages such as simple to operate, that expense is low, therefore be widely used in blood recovery system and the blood pump system.Rolling shaft in the occlusion pump is to realize by the setting nut on the pump head to the change of the mechanical presses power of medical grade rubber pump line.Take certain model blood recovery system as example, setting nut can satisfy equipment requirement so that the gap of rolling shaft and pump groove is 2.5mm.But in the process of clinical application behind the continuous long time running of occlusion pump this gap have increase tendency so that roll extrusion power is not enough, thereby directly affect the output of occlusion pump flow.Normally occur unusually, just can pinpoint the problems when blood back is incomplete at the surgical procedure Instrumental, because of the present technological means that does not still possess slight clearance between monitoring rolling shaft and pump groove, so this parameter is entirely adjusted with working experience.This not only has influence on the grade that blood reclaims quality, also will be related to the intraoperative autotransfusion technology at the safety and reliability of clinical practice simultaneously.In addition, pump also is to determine rolling shaft to the key parameter of the shear stress of roll extrusion pump line apart from parameter, and occlusion pump had increased the Erythrocyte Damage chance greatly to constantly the rolling of pump line when pump line was pressed tension, and then there is the destruction of similar vacuum suction in the partially pine that pump line is pressed.
Summary of the invention
The pump that the object of the invention is to solve existing occlusion pump provides a kind of and can measure in real time slight clearance between monitoring rolling shaft and pump groove apart from problem that can't Real-Time Monitoring, and the device that gives the alarm when needed.
For reaching above-mentioned purpose, the invention provides a kind of occlusion pump micro pump apart from the automatic detection warning instrument, comprising: diaphragm pressure sensor is arranged between the pump groove and pump line of occlusion pump, in order to measure the force value on pump line surface; The signal condition module is electrically connected with described diaphragm pressure sensor, receives the pressure signal that described diaphragm pressure sensor is measured, and this pressure signal is carried out format conversion; Control module is electrically connected with described signal condition module, receives the pressure signal through format conversion, and calculates to draw the force value of occlusion pump and pump apart from value according to this pressure signal value, and described pump is compared apart from value and a threshold value of presetting; Alarm module is electrically connected with described control module, sends alerting signal according to the control of described control module.
A kind of occlusion pump micro pump that the present invention proposes also comprises display module apart from the automatic detection warning instrument, is electrical connected with described control module, shows that the force value of described occlusion pump and pump are apart from value.
A kind of occlusion pump pump that the present invention proposes is apart from the automatic detection warning instrument, and wherein said diaphragm pressure sensor is the piezoresistor type sensor.
A kind of occlusion pump pump that the present invention proposes is apart from the automatic detection warning instrument, and wherein said control module is single-chip microcomputer.
Compared with prior art, beneficial effect of the present invention is:
On the basis of not changing original occlusion pump basic system and working method, the present invention can independent operating.The present invention has the characteristics such as volume is little, portable, easy to use, can reduce the workload that the medical worker pays close attention to blood salvage system, improve the quality of preparation blood, for autotransfusion in the operation provides the support of high-quality, had huge Social benefit and economic benefit.
Description of drawings
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is that the present invention is applied to the connection diagram in the occlusion pump;
Fig. 3 is the circuit diagram of the present invention's one specific embodiment.
Fig. 4 is the circuit diagram of diaphragm pressure sensor in the present invention's one specific embodiment.
Description of reference numerals: 1-control module; The 2-diaphragm pressure sensor; 3-signal condition module; The 4-alarm module; The 5-display module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not paying the every other embodiment that obtains under the creative work prerequisite.
See also Fig. 1, be structured flowchart of the present invention.The present invention includes control module 1, diaphragm pressure sensor 2, signal condition module 3, alarm module 4 and display module 5.Wherein, diaphragm pressure sensor 1 is used for measuring occlusion pump to the pressure signal of pump line.Signal condition module 2 is electrically connected with diaphragm pressure sensor 1, receives this pressure signal that this diaphragm pressure sensor is measured, and this pressure signal is nursed one's health the data layout that can identify to be converted into control module 1.Control module 1 is electrically connected with signal condition module 2, the pressure signal of reception behind signal condition module 2 format transformations, this pressure signal is calculated, by the control module 1 inside good curve of demarcating in advance match obtain rolling shaft to the current force value of pipeline and the pump between occlusion pump and pump groove apart from value, and this pump compared apart from value and default threshold value.When this pump exceeded default threshold value apart from value, control module 1 was sent control signal to alarm module 4 immediately, and order alarm module 4 is reported to the police.Display module 5 is electrically connected with control module 1, in order to show that force value that occlusion pump is current and pump are apart from value.
Continue to consult Fig. 2, for the present invention is applied to connection diagram in the occlusion pump.During use, diaphragm pressure sensor 2 is arranged between pump cell wall and the pump line, diaphragm pressure sensor 2 is subject to the relevant pressure of pump line in the time of rolling shaft extruding pump line, thereby draws pressure signal.For the ease of carrying, control module 1 of the present invention, signal condition module 3, alarm module 4 and display module 5 all have been integrated in internal body.
Fig. 3 is the integrated circuit figure of a specific embodiment of the present invention.In this embodiment, what control module 1 was selected is STC12C5A60S2 type single-chip microcomputer, is connected with necessary auxiliary circuit around this single-chip microcomputer, comprises the power regulator module, filter capacitor, crystal oscillator and the reset resistor that are made of LM7805CT.Simultaneously single-chip microcomputer has also passed through pull-up resistor and has been connected a triode Q1 with divider resistance and drives hummer LS1.Single-chip microcomputer has also connected liquid crystal in addition, and the R1 variable resistor is used for the contrast of adjustable liquid crystal display display screen, and DB0-DB7 is the liquid-crystal data end, connects the P0 mouth of single-chip microcomputer, and ES is that the sheet choosing enables, and R/W is that read-write enables the selecting side, and R/S is the order data selecting side.
What the thin film sensor 2 in the present embodiment was selected is the piezoresistor type sensor, and this piezoresistor type sensor connects the P1.0 mouth of single-chip microcomputer, to enter the inside AD converter of single-chip microcomputer.Fig. 4 is the circuit structure diagram of piezoresistor type sensor, as seen from the figure, this piezoresistor type sensor converts resistance variations to voltage signal by the R2 dividing potential drop, through the white noise filtering of low-pass filter with high frequency interference and resistance itself, thereby can obtain pressure signal than high-quality.
More than explanation is just illustrative for the purpose of the present invention, and nonrestrictive, those of ordinary skills understand; in the situation that does not break away from the spirit and scope that following claims limit, can make many modifications, change; or equivalence, but all will fall within the scope of protection of the present invention.
Claims (4)
1. an occlusion pump micro pump is characterized in that apart from the automatic detection warning instrument, comprising:
Diaphragm pressure sensor is arranged between the pump groove and pump line of occlusion pump, in order to measure the force value on pump line surface;
The signal condition module is electrically connected with described diaphragm pressure sensor, receives the pressure signal that described diaphragm pressure sensor is measured, and this pressure signal is carried out format conversion;
Control module is electrically connected with described signal condition module, receives the pressure signal through format conversion, and calculates to draw the force value of occlusion pump and pump apart from value according to this pressure signal value, and described pump is compared apart from value and a threshold value of presetting;
Alarm module is electrically connected with described control module, sends alerting signal according to the control of described control module.
2. a kind of occlusion pump micro pump according to claim 1 is characterized in that apart from the automatic detection warning instrument, also comprises display module, is electrical connected with described control module, shows that the force value of described occlusion pump and pump are apart from value.
3. a kind of occlusion pump pump according to claim 1 and 2 is characterized in that apart from the automatic detection warning instrument, and described diaphragm pressure sensor is the piezoresistor type sensor.
4. a kind of occlusion pump pump according to claim 1 and 2 is characterized in that apart from the automatic detection warning instrument, and described control module is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103467613A CN102889849A (en) | 2012-09-18 | 2012-09-18 | Micro pump distance automatic detection alarm of roller pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103467613A CN102889849A (en) | 2012-09-18 | 2012-09-18 | Micro pump distance automatic detection alarm of roller pump |
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| Publication Number | Publication Date |
|---|---|
| CN102889849A true CN102889849A (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103467613A Pending CN102889849A (en) | 2012-09-18 | 2012-09-18 | Micro pump distance automatic detection alarm of roller pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196359B (en) * | 2013-04-03 | 2016-04-20 | 广州广电运通金融电子股份有限公司 | A kind of measuring method of gap and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01147179A (en) * | 1987-12-01 | 1989-06-08 | Tosoh Corp | Roller pump with liquid leakage detector |
| US5957839A (en) * | 1995-02-16 | 1999-09-28 | Wayne State University | Apparatus and method for continuous monitoring of tissue gas composition and pH using recirculating gas tonometry |
| CN101194826A (en) * | 2006-12-22 | 2008-06-11 | 四川川大智胜软件股份有限公司 | Portable intelligent fetal movement counter and processing method for acquiring signal |
| CN101884525A (en) * | 2010-06-18 | 2010-11-17 | 上海理工大学 | Portable device for real-time dynamic medical monitoring system |
| CN102393186A (en) * | 2011-08-30 | 2012-03-28 | 哈尔滨工业大学 | Method for measuring clearance between rolling pump groove and rolling shaft in real time |
-
2012
- 2012-09-18 CN CN2012103467613A patent/CN102889849A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01147179A (en) * | 1987-12-01 | 1989-06-08 | Tosoh Corp | Roller pump with liquid leakage detector |
| US5957839A (en) * | 1995-02-16 | 1999-09-28 | Wayne State University | Apparatus and method for continuous monitoring of tissue gas composition and pH using recirculating gas tonometry |
| CN101194826A (en) * | 2006-12-22 | 2008-06-11 | 四川川大智胜软件股份有限公司 | Portable intelligent fetal movement counter and processing method for acquiring signal |
| CN101884525A (en) * | 2010-06-18 | 2010-11-17 | 上海理工大学 | Portable device for real-time dynamic medical monitoring system |
| CN102393186A (en) * | 2011-08-30 | 2012-03-28 | 哈尔滨工业大学 | Method for measuring clearance between rolling pump groove and rolling shaft in real time |
Non-Patent Citations (1)
| Title |
|---|
| 田勇: "自体血液回收机滚压泵微量泵距自动监控报警仪的研制", 《中国医疗设备》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196359B (en) * | 2013-04-03 | 2016-04-20 | 广州广电运通金融电子股份有限公司 | A kind of measuring method of gap and device |
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Application publication date: 20130123 |