CN2751791Y - Instrument for preventing deep phlebothrombosis - Google Patents
Instrument for preventing deep phlebothrombosis Download PDFInfo
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- CN2751791Y CN2751791Y CN 200420086407 CN200420086407U CN2751791Y CN 2751791 Y CN2751791 Y CN 2751791Y CN 200420086407 CN200420086407 CN 200420086407 CN 200420086407 U CN200420086407 U CN 200420086407U CN 2751791 Y CN2751791 Y CN 2751791Y
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Abstract
The utility model discloses an instrument for preventing deep phlebothrombosis, which is mainly composed of a control circuit and a pneumatic device. An embedded type single chip computer is used as a control core, the air pressure in air bags is detected by a pressure sensor, a signal is transmitted to the single chip computer system through an interface circuit, and after the signal is processed by software, an executing signal is sent out; an air inlet valve and an air release valve are controlled by an isolation driving circuit to operate according to a certain rule, then the three air bags are inflated and deflated according to the rule to apply pressure of certain gradient for lower limbs of patients, and thus, the purpose of preventing DVT medically is achieved. The instrument for preventing deep phlebothrombosis has the advantages of simple structure, low cost, stable performance and high intelligent degree.
Description
Technical field
This utility model relates to physical therapy device, especially relates to a kind of deep vein embolus preventing instrument.
Background technology
Deep venous thrombosis (Deep Vein Thrombosis, DVT) form be owing to thrombus obstruction certain blood backflow obstacle that props up dark vein hyperamization bolt distally cause and organize blood stasis.Along with developing rapidly of vascular surgery specialty, the applying of multiple diagnosis and treatment technology, the recall rate of DVT increases, and becomes commonly encountered diseases, frequently-occurring disease in the peripheral vascular disease, and the trend that rises is year by year arranged.The effective measures of prevention DVT mainly are anticoagulants at present.The application of anticoagulant exists bleeding tendency, gastrointestinal side effect and allergic problem, especially to the patient of advanced age, pulmonary insufficiency Ying Shenyong more.
Summary of the invention
The purpose of this utility model is to provide a kind of deep vein embolus preventing instrument, utilizes mechanical means (elastic pressure) the prevention DVT of periodically inflation pressurization, thereby eliminates by the anticoagulant treatment side effect that DVT produced.
Technical scheme:
The technical scheme that its technical problem that solves this utility model adopts is: it comprises control circuit and pneumatic means, wherein:
1) control circuit: comprise microcontroller system circuit, keyboard control circuit, display control circuit, buzzer alarm circuit, EEPROM memory circuit, power supply processing circuit, A/D convertor circuit, isolated drive circuit, signal amplification circuit, sensor interface circuitry; Microcontroller system circuit is connected with isolated drive circuit with keyboard control circuit, display control circuit, buzzer alarm circuit, EEPROM memory circuit, power supply processing circuit, A/D convertor circuit respectively with I/O mouth pin by the control pin, and A/D convertor circuit is connected with sensor interface circuitry with signal amplification circuit successively;
2) pneumatic means: comprise three independently gas circuits, each road all has intake valve, vent valve, four-way connection, pressure transducer and air bag; Four-way connection is connected with intake valve, vent valve, pressure transducer and air bag respectively, and intake valve and vent valve connect isolated drive circuit respectively, and pressure transducer is connected with voltage amplifier circuit through sensor interface circuitry, connects mini air pump after three intake valve parallel connections.
The useful effect that the utlity model has is:
After this utility model started, the control core read each key assignments of keyboard earlier, sets parameters.Read the digital value after pressure transducer is changed again, judge by internal control, the output control signal is controlled intake valve, vent valve and is carried out action according to certain rules, make three air bags fill, exit by rule, patient's lower limbs is applied the pressure of certain gradient, to reach the purpose of medically preventing DVT.This apparatus structure is simple, low cost of manufacture, stable performance, intelligent degree height.
Description of drawings
Fig. 1 is this utility model population structure block diagram;
Fig. 2 is a pneumatic means structure principle chart of the present utility model;
Fig. 3 is this utility model single channel gas circuit decomposition of movement figure;
Fig. 4 is the main program block diagram of this utility model control circuit;
Fig. 5 is this utility model control circuit figure.
Among the figure: 1. mini air pump, 2. intake valve, 3. vent valve, 4. four-way connection, 5. pressure transducer, 6. air bag, 7. sensor interface circuitry, 8. signal amplification circuit, 9.AD change-over circuit, 10. driving buffer circuit, 11. microcontroller system circuits, 12. keyboard control circuits, 13. display control circuit, 14. buzzer alarm circuit, 15.EEPROM memory circuit, 16. power supply processing circuits.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further specified.
As shown in Figure 1 and Figure 2, this utility model comprises control circuit and pneumatic means, wherein:
1) control circuit: comprise microcontroller system circuit 11, keyboard control circuit 12, display control circuit 13, buzzer alarm circuit 14, EEPROM memory circuit 15, power supply processing circuit 16, A/D convertor circuit 9, isolated drive circuit 10, signal amplification circuit 8, sensor interface circuitry 7; Microcontroller system circuit 11 is connected with keyboard control circuit 12, display control circuit 13, buzzer alarm circuit 14, EEPROM memory circuit 15, power supply processing circuit 16, A/D convertor circuit 9 and isolated drive circuit 10 respectively with I/O mouth pin by the control pin, and A/D convertor circuit 9 is connected with sensor interface circuitry 7 with signal amplification circuit 8 successively;
2) pneumatic means: comprise three independently gas circuits, each road all has intake valve 2, vent valve 3, four-way connection 4, pressure transducer 5 and air bag 6; Four-way connection 4 is connected with intake valve 2, vent valve 3, pressure transducer 5 and air bag 6 respectively, intake valve 2 and vent valve 3 connect isolated drive circuit 10 respectively, pressure transducer 5 is connected with voltage amplifier circuit 8 through sensor interface circuitry 7, connects mini air pump 1 after three intake valve 2 parallel connections.
Described microcontroller system circuit 11 adopts AT89C52, AT89C2051 or AT89C51; Keyboard control circuit 12 has 4 buttons, adopts 2 * 2 structures, and line and alignment directly insert the P14～P17 mouth of single-chip microcomputer; Display control circuit 13 adopts 6 LED to show that dynamically single-chip microcomputer P24～P26 inserts 3～8 decoder 74LS138 inputs, exports 6 road useful signals and amplifies through reverser 74LS14 and transistor, connects LED as the position signal; P20～the P23 of single-chip microcomputer inserts 4 lines-7 segment decoders/driver 74LS247, exports 7 road signals and connects LED as segment encode; Buzzer alarm circuit 14 its buzzers directly are connected with the P06 of single-chip microcomputer by Voltage stabilizing module 7805 power supplies; EEPROM memory circuit 15 is X25045, adopts this chip standard circuit; Power supply processing circuit 16 employing filtered diode and Voltage stabilizing module 7824, Voltage stabilizing module 7805, Voltage stabilizing module 7905, Voltage stabilizing module LM336 provide power supply, and adopt the LM324 circuit to reduce voltage, for AD620 provides reference power source; A/D convertor circuit 9 is AD7706, and adopts this chip standard circuit; Isolated drive circuit 10 is single-chip microcomputer P00～P05 process isolating chip TLP521-2, controls intake valve, the vent valve on each road again through the chip ULN2003 that overdrives; Signal amplification circuit 8 adopts AD620 and adopts this chip standard circuit; Sensor interface circuitry 7 its power supplys are provided by regulated power supply LM336, again through voltage follower LM324, power supply processing circuit 16 are isolated.
Described intake valve 2 is that 2/2-way electromagnetic valve, vent valve 3 are the MPX10 pressure transducer for 2/2-way electromagnetic valve, four-way connection 4 for common plastics four-way connection, pressure transducer 5.
Machinery and circuit interface part mainly are the gas pressures that pressure transducer 5 detects in the air bag, pass the signal along to signal amplification circuit 8 seams by sensor interface circuitry 7.Microcontroller system circuit 11 sends the signal after software processes, by isolated drive circuit 10 control intake valves 2, vent valve 3.After instrument starts, power supply processing circuit 16 begins power supply, mini air pump 1 is opened, microcontroller system circuit 11 reads the parameter original value in the EEPROM memory circuit 15 earlier, read keyboard control circuit 12 key assignments again, set parameters, send 15 storages of EEPROM memory circuit and display control circuit 13 to show.Parameter after setting completed, the digital value of read sensor interface circuit 7 behind voltage amplifier circuit 8, A/D convertor circuit 9, judge by microcontroller system circuit 11 software controls, the output control signal, buffer circuit 10 is controlled intake valves 2, vent valve 3 is carried out action according to certain rules through driving, communicate by four-way connection 4 air pressure inside, make three air bags 6 fill, exit by rule.Cause internal pressure to surpass alarm pressure when instrument breaks down, or after having moved the setting circulation, buzzer alarm circuit 14 is reported to the police.
Shown in Fig. 2 schematic diagram of gas circuit, gas circuit provides total source of the gas by a mini air pump 1, is divided into independently three gas circuits.In the instrument implementation process, microcontroller system circuit 11 control cores are sent control signal to the intake valve 2 in three independent gas circuits, vent valve 3 successively, make three air bags 6 inflate successively, exit.Microcontroller system circuit 11 control cores power on to intake valve in the first via 2 earlier, then air bag 6 inflations in the first via, when pressure transducer 5 reached setting value, intake valve 2 stopped to power on, and air bag enters packing state in the first via, after the time-delay, vent valve in the first via 3 is powered on, then air bag 6 venting in the first via is when detecting internal gas pressure and drop to atmospheric pressure again, vent valve 3 stops to power on, and venting finishes.After the time-delay, again the intake valve in next gas circuit 2, vent valve 3 are operated equally, all finished, again the first via is operated again, enter new circulation, thereby realize that three air bags 6 fill successively, exit up to three gas circuits.
In implementation process shown in Fig. 3 list gas circuit decomposition of movement figure, a mouth of intake valve 2 is connected with mini air pump 1, and another mouthful is connected with four-way connection 4, and a mouth of vent valve 3 is connected with four-way connection 4, and another mouthful directly communicates with atmosphere.Two outlets in addition of four-way connection link to each other with air bag 6 with pressure transducer 5 respectively.Instrument starts back mini air pump 1 air feed, when intake valve 2 powers on, during vent valve 3 power down, intake valve 2 is in channel status, gas in the mini air pump 1 directly enters air bag 6 through intake valve 2, and this moment, vent valve 3 was in the pass line state, made internal gas and isolated from atmosphere, airbag aeration and supercharging; When intake valve 2, vent valve 3 power down simultaneously, intake valve 2 is in the pass line state, and mini air pump 1 is isolated with inner air path and can not air feed, and this moment, vent valve 3 also was in the pass line state, make internal gas and isolated from atmosphere, the QI KOU of air bag 6 all is closed and pressurize; When intake valve 2 power down, when vent valve 3 powered on, intake valve 2 was in the pass line state, and mini air pump 1 is isolated with inner air path and can not air feed, and this moment, vent valve 3 was in channel status, and air bag 6 is directly communicated with atmosphere, exitted and blood pressure lowering.Microcontroller system circuit 11 control cores are by sending switching signal, control intake valve 2, vent valve 3 and realize the gas that charges and discharge to single air bag 6.
Fig. 4 is a main program flow chart, and system boot reads every initial parameter from EEPROM memory circuit 15, and " execution " key or " setting " key signals are waited in initialization.If " executions " key responds then that program directly enters running status, be introduced into parameter state is set if " setting " key responds then program, after the parameter that setting completed, value is sent into EEPROM memory circuit 15, and send display control circuit 13 demonstrations.All parameter directly enters running status after setting completed.During operation, software is set gas circuit tag mark n=1 earlier, intake valve 2 in the n road is gone up electric control, and the signal of detection A/D converter 9 outputs, send display control circuit 13 to show actual pressure pick off 5 values of measuring, be raised to setting value up to pressure, again intake valve in the n road 2 carried out power down control.The time-delay pressurize, software is gone up electric control to vent valve 3 in the n road again, and detects the signal of A/D converter 9 outputs, send display control circuit 13 to show actual pressure pick off 5 values of measuring, when pressure drops to atmospheric pressure, again vent valve in the n road 3 is carried out power down control.After the time-delay, gas circuit mark number n adds one, judges whether to finish one-period (n=4), does not finish (n＜4) and then same operation is carried out on next road.When software finished operation (n=4) on one side to three gas circuits after, cycle period symbol m subtracted one, detected cycle period symbol m and whether equaled 0.If equal 0, then program is returned, otherwise program enters next periodic duty, the first via is operated again.
At Fig. 5 is the circuit diagram of control section, and each circuit elements device and operation principle are as follows: microcontroller system circuit 11: core is AT89C52, and its elementary cell also comprises the 12MHZ crystal resonator.By control pin and I/O mouth pin, read and control each branch circuit.Keyboard control circuit 12: this instrument one has that 4 button-execution are read key, key is set, lifting key, decline key.Adopt 2 * 2 structures for saving I/O, when keyboard did not have key closed, all lines and alignment disconnected.When some keys are closed on the keyboard, pairing row of this key and row short circuit.Line and alignment directly insert the P14～P17 mouth of single-chip microcomputer.Display control circuit 13: adopt 6 LED dynamically to show, single-chip microcomputer P24～P26 inserts 3～8 decoder 74LS138 inputs, exports 6 road useful signals and amplifies through reverser 74LS14 and transistor, connects LED as the position signal.Single-chip microcomputer P20～P23 inserts 4 lines-7 segment decoders/driver 74LS247, exports 7 road signals as segment encode, connects LED.Signal amplification circuit 8: instrumentation amplifier adopts AD620, outputs to A/D convertor circuit 9 after the signal amplification with pick off output.AD7706 is adopted in A/D convertor circuit 9:AD conversion, accepts the signal from signal amplification circuit 8, and the signal after the conversion is directly outputed to single-chip microcomputer.Power supply processing circuit 16: adopt civil power 220V power supply, transformator output 24V, 5V ,-5V three tunnel.The rectification of every Lu Zaijing bridge circuit behind the capacitor filtering, inserts Voltage stabilizing module 7824, Voltage stabilizing module 7805, Voltage stabilizing module 7905 respectively, and the out-put supply place in circuit provides power supply to each device.The reference voltage of A/D convertor circuit 9 is exported back reuse operational amplifier LM324 by benchmark Zener diode LM336, and the source of stable pressure that component property is good provides reliable reference voltage to amplifying circuit and A/D convertor circuit, guarantees conversion accuracy.Buzzer alarm circuit 14: buzzer directly is connected with the P06 of single-chip microcomputer, by software control buzzer state by Voltage stabilizing module 7805 power supplies.EEPROM memory circuit 15: circuit adopts X25045, includes the 4k serial EEPROM, by being connected with single-chip microcomputer P10～P13, can in time system's parameters be preserved, and falls a little or next the start read again in order to system's accident.This chip includes watchdog circuit, and external knob provides functions such as software reset, knob reset.Sensor interface circuitry 7: pick off adopts the MPX10 of Motorola, and its power supply is provided by regulated power supply, again through voltage follower LM324, the forward direction circuit is isolated.Output signal is directly inputted to the input of voltage amplifier circuit.Drive buffer circuit 10: single-chip microcomputer P00～P05 controls intake valve 2, the vent valve 3 on each road again through isolating chip TLP521-2 through the chip ULN2003 that overdrives.
Claims (3)
1, a kind of deep vein embolus preventing instrument is characterized in that: comprise control circuit and pneumatic means, wherein:
1) control circuit: comprise microcontroller system circuit (11), keyboard control circuit (12), display control circuit (13), buzzer alarm circuit (14), EEPROM memory circuit (15), power supply processing circuit (16), A/D convertor circuit (9), isolated drive circuit (10), signal amplification circuit (8), sensor interface circuitry (7); Microcontroller system circuit (11) is connected with keyboard control circuit (12), display control circuit (13), buzzer alarm circuit (14), EEPROM memory circuit (15), power supply processing circuit (16), A/D convertor circuit (9) and isolated drive circuit (10) respectively with I/O mouth pin by the control pin, and A/D convertor circuit (9) is connected with sensor interface circuitry (7) with signal amplification circuit (8) successively;
2) pneumatic means: comprise three independently gas circuits, each road all has intake valve (2), vent valve (3), four-way connection (4), pressure transducer (5) and air bag (6); Four-way connection (4) is connected with intake valve (2), vent valve (3), pressure transducer (5) and air bag (6) respectively, intake valve (2) and vent valve (3) connect isolated drive circuit (10) respectively, pressure transducer (5) is connected with voltage amplifier circuit (8) through sensor interface circuitry (7), connects mini air pump (1) after three intake valves (2) parallel connection.
2, want 1 described a kind of deep vein embolus preventing instrument according to right, it is characterized in that: described microcontroller system circuit (11) adopts AT89C52, AT89C2051 or AT89C51; Keyboard control circuit (12) has 4 buttons, adopts 2 * 2 structures, and line and alignment directly insert the P14～P17 mouth of single-chip microcomputer; Display control circuit (13) adopts 6 LED to show that dynamically single-chip microcomputer P24～P26 inserts 3～8 decoder 74LS138 inputs, exports 6 road useful signals and amplifies through reverser 74LS14 and transistor, connects LED as the position signal; P20～the P23 of single-chip microcomputer inserts 4 lines-7 segment decoders/driver 74LS247, exports 7 road signals and connects LED as segment encode; Its buzzer of buzzer alarm circuit (14) directly is connected with the P06 of single-chip microcomputer by Voltage stabilizing module 7805 power supplies; EEPROM memory circuit (15) is X25045; Power supply processing circuit (16) adopts filtered diode and Voltage stabilizing module 7824, Voltage stabilizing module 7805, Voltage stabilizing module 7905 and Voltage stabilizing module LM336 that power supply is provided, and adopts the LM324 circuit to reduce voltage, for AD620 provides reference power source; A/D convertor circuit (9) is AD7706; Isolated drive circuit (10) is single-chip microcomputer P00～P05 process isolating chip TLP521-2, controls intake valve, the vent valve on each road again through the chip ULN2003 that overdrives; Signal amplification circuit (8) adopts AD620; Its power supply of sensor interface circuitry (7) is provided by regulated power supply LM336, again through voltage follower LM324, power supply processing circuit (16) is isolated.
3, want 1 described a kind of deep vein embolus preventing instrument according to right, it is characterized in that: described intake valve (2) is MPX10 pressure transducer for 2/2-way electromagnetic valve, four-way connection (4) for plastics four-way connection, pressure transducer (5) for 2/2-way electromagnetic valve, vent valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086407 CN2751791Y (en) | 2004-12-11 | 2004-12-11 | Instrument for preventing deep phlebothrombosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086407 CN2751791Y (en) | 2004-12-11 | 2004-12-11 | Instrument for preventing deep phlebothrombosis |
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| Publication Number | Publication Date |
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| CN2751791Y true CN2751791Y (en) | 2006-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420086407 Expired - Fee Related CN2751791Y (en) | 2004-12-11 | 2004-12-11 | Instrument for preventing deep phlebothrombosis |
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| CN (1) | CN2751791Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104352344A (en) * | 2014-12-08 | 2015-02-18 | 重庆南方数控设备有限责任公司 | Improved limb-pressurization physical therapy instrument |
| CN105055146A (en) * | 2015-08-14 | 2015-11-18 | 成都千里电子设备有限公司 | Airwave therapeutic apparatus system |
| CN105105902A (en) * | 2015-04-23 | 2015-12-02 | 安徽清大德人医疗科技股份有限公司 | Double-air-channel monitor system of cervical vertebra therapeutic instrument |
| CN105147509A (en) * | 2015-08-14 | 2015-12-16 | 成都千里电子设备有限公司 | Therapeutic apparatus system based on pressure therapy |
| CN105193606A (en) * | 2015-08-14 | 2015-12-30 | 成都千里电子设备有限公司 | Therapeutic apparatus system beneficial to convenience in use |
| CN107595572A (en) * | 2017-08-15 | 2018-01-19 | 广东泰宝医疗器械技术研究院有限公司 | A kind of gas circuit shape chamber of multichannel |
| CN109789050A (en) * | 2016-08-23 | 2019-05-21 | 昇科股份有限公司 | Therapeutic compressorium and its application method |
| CN109907956A (en) * | 2017-12-22 | 2019-06-21 | 北京中科盛康科技有限公司 | A kind of split reduction thrombus prevention instrument and its control method |
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-
2004
- 2004-12-11 CN CN 200420086407 patent/CN2751791Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104352344A (en) * | 2014-12-08 | 2015-02-18 | 重庆南方数控设备有限责任公司 | Improved limb-pressurization physical therapy instrument |
| CN105105902A (en) * | 2015-04-23 | 2015-12-02 | 安徽清大德人医疗科技股份有限公司 | Double-air-channel monitor system of cervical vertebra therapeutic instrument |
| CN105055146A (en) * | 2015-08-14 | 2015-11-18 | 成都千里电子设备有限公司 | Airwave therapeutic apparatus system |
| CN105147509A (en) * | 2015-08-14 | 2015-12-16 | 成都千里电子设备有限公司 | Therapeutic apparatus system based on pressure therapy |
| CN105193606A (en) * | 2015-08-14 | 2015-12-30 | 成都千里电子设备有限公司 | Therapeutic apparatus system beneficial to convenience in use |
| CN109789050A (en) * | 2016-08-23 | 2019-05-21 | 昇科股份有限公司 | Therapeutic compressorium and its application method |
| CN109789050B (en) * | 2016-08-23 | 2024-02-13 | 昇科股份有限公司 | Therapeutic compression device and method of use thereof |
| CN107595572A (en) * | 2017-08-15 | 2018-01-19 | 广东泰宝医疗器械技术研究院有限公司 | A kind of gas circuit shape chamber of multichannel |
| CN109907956A (en) * | 2017-12-22 | 2019-06-21 | 北京中科盛康科技有限公司 | A kind of split reduction thrombus prevention instrument and its control method |
| JP7246772B1 (en) | 2021-12-20 | 2023-03-28 | 株式会社テクノ高槻 | Air supply and exhaust system for gas massage machine and gas massage machine provided with the same |
| JP7246773B1 (en) | 2021-12-20 | 2023-03-28 | 株式会社テクノ高槻 | Air supply and exhaust system for gas massage machine and gas massage machine provided with the same |
| JP2023091548A (en) * | 2021-12-20 | 2023-06-30 | 株式会社テクノ高槻 | Air supply and exhaust system for gas-type massage machine and gas-type massage machine equipped with the same |
| JP2023091547A (en) * | 2021-12-20 | 2023-06-30 | 株式会社テクノ高槻 | Air supply and exhaust system for gas-type massage machine and gas-type massage machine equipped with the same |
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| 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 |