CN2845746Y - Negative pressure drainage device - Google Patents
Negative pressure drainage device Download PDFInfo
- Publication number
- CN2845746Y CN2845746Y CN 200520143466 CN200520143466U CN2845746Y CN 2845746 Y CN2845746 Y CN 2845746Y CN 200520143466 CN200520143466 CN 200520143466 CN 200520143466 U CN200520143466 U CN 200520143466U CN 2845746 Y CN2845746 Y CN 2845746Y
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- China
- Prior art keywords
- electromagnetic valve
- negative pressure
- air
- bottle
- drainage device
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- Expired - Fee Related
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Abstract
The utility model relates to a negative pressure drainage device which relates to a medical appliance, particularly the negative pressure drainage device which is mainly used for implementing an artificial abortion operation to a pregnant woman of early pregnancy. The negative pressure drainage device which is provided by the utility model has the advantages of accurate setting of the required value of negative pressure, high accuracy, low noise of an aim pump, liquid crystal display for the value of the negative pressure, compact structure and small volume. The negative pressure drainage device comprises a shell body, an air passage system and a control circuit system, wherein the air passage system is provided with an air filter, the air pump, a first electromagnetic valve, a second electromagnetic valve, a buffering bottle and a sucking bottle. A port of the air filter is connected with the air pump which is connected with the buffering bottle through the first electromagnetic valve. The buffering bottle is connected with the sucking bottle through the second electromagnetic valve. The sucking bottle which is externally connected with a sucking gun. A control circuit is provided with a power circuit, a monolithic computer, a pressure sensor, a solid state relay, a controlling and regulating switch, a keyboard and a display, wherein the controlling and regulating switch, the keyboard and the display are arranged on a panel of a shell body and connected with the monolithic computer and the solid state relay, the pressure sensor is connected with the buffering bottle of the air passage system and the solid state relay is in electromechanical connection with the air pump.
Description
Technical field
This utility model relates to a kind of medical appliance, especially relates to the depression drainage device that a kind of anemia of pregnant woman who is mainly used in early pregnancy implements artificial abortion operation.
Background technology
Existing anemia of pregnant woman to early pregnancy implements artificial abortion operation and often adopts abortion suction unit, the electric abortion suction unit that medical suction pump factory of for example Shanghai medicine equipment industry (group) company produces, it adopts the rotary vane type suction pump to make negative pressure source, is made up of the two-stage negative pressure system.But about 1 minute autostop of machine run, and in gas cylinder, produce I level negative pressure system more than the 0.09MPa, negative pressure value is shown by I level vacuum meter.When the anemia of pregnant woman need implement artificial abortion operation attraction, step on foot-operated gas source switch, open electromagnetic valve, in reservoir, form II level negative pressure system, negative pressure value is shown by II level vacuum meter, reaches as high as about 0.08MPa.During clinical use, required negative pressure value (II level negative pressure) when available foot-operated gas source switch and negative pressure bleeder valve control operation suction.Reservoir is connected to the attraction rifle.
Summary of the invention
The purpose of this utility model is at problems such as its structure of existing electric abortion suction unit are comparatively complicated, degree of accuracy is lower, volume is big, provide a kind of and can accurately set required negative pressure value, degree of accuracy is higher, the air pump noise is low, liquid crystal display negative pressure value, compact conformation and the less depression drainage device of volume.
This utility model comprises housing, air-channel system and control circuit system, air-channel system is provided with air filter, air pump, the 1st electromagnetic valve, surge flask, the 2nd electromagnetic valve and suction bottle, the port of air filter connects air pump, air pump connects surge flask through the 1st electromagnetic valve, surge flask connects suction bottle through the 2nd electromagnetic valve again, the external attraction rifle of suction bottle; Control circuit is provided with power circuit, single-chip microcomputer, pressure transducer, solid-state relay, control adjustment switch and keyboard and display, control is adjusted switch and keyboard and display and is located on the panel of housing and with single-chip microcomputer, solid-state relay and is connected, pressure transducer connects the surge flask of air-channel system, and solid-state relay is electrically connected with air pump motor.
The bottle cap of suction bottle is provided with the anti-overflow float, establishes electric contact on the anti-overflow float, and electric contact is connected in series with electromagnetic valve through switch.The set external attraction rifle of pipeline on the suction bottle bottle cap.
Compare with existing like product and since the startup of this utility model by the Single-chip Controlling air pump with close and the accurate adjustment of negative pressure value, therefore not only can accurately set required negative pressure value, the degree of accuracy height, the air pump noise is low, can control constant voltage automatically; And the employing liquid crystal display, intuitively visual, be convenient to timely adjustment, to guarantee the safety of operation.It is simple and compact for structure simultaneously, and volume is little.
Description of drawings
Fig. 1 is the air-channel system structure composition frame chart of this utility model embodiment.
Fig. 2 is the suction bottle structural representation of this utility model embodiment air-channel system.
Fig. 3 is the Circuits System theory of constitution figure of this utility model embodiment.
The specific embodiment
This utility model comprises housing, air-channel system and control circuit system.Referring to Fig. 1, air-channel system is provided with air filter 1, air pump the 2, the 1st electromagnetic valve 3, surge flask the 4, the 2nd electromagnetic valve 5 and suction bottle 6, the port of air filter 1 connects air pump 2, air pump 2 connects surge flask 4 through the 1st electromagnetic valve 3, surge flask 4 connects suction bottle 6 through the 2nd electromagnetic valve 5 again, suction bottle 6 external attraction rifles.Referring to Fig. 2, the bottle cap 61 of suction bottle 6 is provided with anti-overflow float 62, establishes electric contact 63 on the anti-overflow float 62, and electric contact 63 is connected in series with electromagnetic valve through switch 64.When liquid level was higher than certain position, the electric contact 63 of suction bottle 6 disconnected, and promptly closes the 2nd electromagnetic valve 5; Simultaneously, anti-overflow float 62 also cuts out inlet, plays the effect of dual anti-overflow.Set pipeline 65 external attraction rifles on the bottle cap 61.
Referring to Fig. 1 and 3, control circuit is provided with single-chip microcomputer IC1, power circuit IC2 (voltage reference is 5.00V), pressure transducer PS, solid-state relay J, control adjustment switch and keyboard K1～K4 and display lcd (band Chinese character base), control is adjusted switch and keyboard and display and is located on the panel of housing and with single-chip microcomputer IC1 and is connected with solid-state relay J, pressure transducer PS connects the surge flask 4 of air-channel system, 1,2 feet of solid-state relay J are electrically connected with the motor of air pump 2, and the 3rd foot of solid-state relay J meets single-chip microcomputer IC1.
Connection+the 5V of system and+the 8V dc source, single-chip microcomputer IC1 carries out self check to system, if having unusually, 20 feet of single-chip microcomputer IC1 send passage of scintillation light by LED, the expression abnormal information; If system is normal, on the keyboard that K1-K4 forms, select to be provided with respectively the high limit and the lower bound of vacuum.The vacuum of suction pump converts the voltage signal of 0.2～4.7V to through pick off PS, by single-chip microcomputer IC1 mould/number conversion is 10 binary digital signals (IC2 provides reference voltage), send display lcd, instant playback vacuum on display lcd, and compare with the value of setting; When the vacuum of suction pump during less than lower bound, single-chip microcomputer IC1 output signal is connected solid-state relay J, output pin 1,2 closures of solid-state relay J, booster air pump 2; When the vacuum of suction pump is prescribed a time limit greater than height, single-chip microcomputer IC1 output signal is connected solid-state relay J, and solid-state relay J output pin 1,2 turn-offs, and closes air pump 2; The vacuum of suction pump is controlled in the scope of setting exactly.
When needs reset the vacuum of suction pump, on keyboard, press Menu key, display lcd shows main menu, select " high limit " or " lower bound ", press acknowledgement key, and selection " resetting? " press acknowledgement key, again by up and down key increase and decrease, and press acknowledgement key and get final product.
During use, turn on the power switch, press start key, air pump 2 is with 3 actions of the 1st electromagnetic valve, and air pump 2 begins to bleed.On reaching, air pressure quits work in limited time; When being lower than down, pressure starts working in limited time.When needs attracted, 5 actions of the 2nd electromagnetic valve were opened, and close with pressurize when not attracting.When liquid level was higher than certain position, the electric contact 63 of suction bottle 6 disconnected, and promptly closes the 2nd electromagnetic valve 5; Simultaneously, anti-overflow float 62 also cuts out inlet, plays the effect of dual anti-overflow.Pipeline 65 set on the bottle cap 61 connects the attraction rifle.
In Fig. 3, the reference model and the parameter of each main components and parts are as follows:
Single-chip microcomputer IC1:AT tiny 26 types; IC 2:RZF02 type (reference voltage is 5.00V); Display lcd: GDM12864Z type; Pressure transducer PS:MPX5100D type; Solid-state relay J:JGX-1505FB/D-240A10 type; Crystal oscillator XL:3.58MHZ; Resistance R 1:10K, R2～R5:20K, R6, R7:500; Capacitor C 1, C4, C5:0.1 μ, C2, C3; 20P; Inductance L: 30 μ H.
Claims (2)
1, depression drainage device, it is characterized in that comprising housing, air-channel system and control circuit system, air-channel system is provided with air filter, air pump, the 1st electromagnetic valve, surge flask, the 2nd electromagnetic valve and suction bottle, the port of air filter connects air pump, air pump connects surge flask through the 1st electromagnetic valve, surge flask connects suction bottle through the 2nd electromagnetic valve again, the external attraction rifle of suction bottle; Control circuit is provided with power circuit, single-chip microcomputer, pressure transducer, solid-state relay, control adjustment switch and keyboard and display, control is adjusted switch and keyboard and display and is located on the panel of housing and with single-chip microcomputer, solid-state relay and is connected, pressure transducer connects the surge flask of air-channel system, and solid-state relay is electrically connected with air pump motor.
2, depression drainage device as claimed in claim 1 is characterized in that the bottle cap of suction bottle is provided with the anti-overflow float, establishes electric contact on the anti-overflow float, and electric contact is connected in series with electromagnetic valve through switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143466 CN2845746Y (en) | 2005-11-25 | 2005-11-25 | Negative pressure drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143466 CN2845746Y (en) | 2005-11-25 | 2005-11-25 | Negative pressure drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2845746Y true CN2845746Y (en) | 2006-12-13 |
Family
ID=37511161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520143466 Expired - Fee Related CN2845746Y (en) | 2005-11-25 | 2005-11-25 | Negative pressure drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2845746Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829390A (en) * | 2010-04-28 | 2010-09-15 | 北京航空航天大学 | Negative-pressure sealed drainage system suitable for wound rehabilitation |
| CN105477695A (en) * | 2016-01-19 | 2016-04-13 | 戴慧芳 | Embedment-based negative pressure drainage apparatus for emergency treatment |
-
2005
- 2005-11-25 CN CN 200520143466 patent/CN2845746Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829390A (en) * | 2010-04-28 | 2010-09-15 | 北京航空航天大学 | Negative-pressure sealed drainage system suitable for wound rehabilitation |
| CN101829390B (en) * | 2010-04-28 | 2012-05-30 | 北京航空航天大学 | Negative-pressure sealed drainage system suitable for wound rehabilitation |
| CN105477695A (en) * | 2016-01-19 | 2016-04-13 | 戴慧芳 | Embedment-based negative pressure drainage apparatus for emergency treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |