CN102764466A - Infusion drop monitoring system on basis of sound wave vibration signal - Google Patents

Abstract

The invention discloses an infusion drop monitoring system on the basis of a sound wave vibration signal, which comprises a terminal controller, a ZigBee router, a ZigBee coordinator and a PC (Personal Computer) upper computer. The terminal controller comprises a sound wave signal acquisition device (8), a control main board (7) and a precision stepping clamping motor (9); a diaphragm (3) is arranged on the close contact surface of the sound wave signal acquisition device (8) and a Murphy dropper (2); a diaphragm cavity (4) and a cavity duct (5) are arranged in the sound wave signal acquisition device (8); a pick-up device (6) is arranged at one end of the cavity duct (5); the pick-up device (6) is connected with the control main board (7); and the control main board (7) is connected with the precision stepping clamping motor (9) by a wire. The infusion drop monitoring system has simple and practical structure and low using cost; the infusion speed and the infusion volume are controlled by processing the drop sound wave vibrating signal; and the infusion drop monitoring system has no any radiation influence on liquid medicine.

Description

Transfusion drop monitoring system based on the sound wave vibration signal

Technical field

The invention belongs to medical instruments field, be specifically related to a kind of transfusion drop monitoring system of controlling transfusion speed based on drop sound wave vibration signal.

Background technology

When at present carrying out infusion treatment in medical institutions such as the large, medium and small type hospital of China and subordinate's community sanitary institute, clinics, transfusion speed and amount of infusion almost are inaccurate all.Transfusion speed is that the nurse comes the controlling liquid flow velocity through the manual pulley that rotates on the transfusion device, and amount of infusion also is that the nurse topples over the back estimation with the liquid bottles of having only two labellings.Instrument and equipments such as transfusion speed monitoring are not by extensive employing; So not only can influence the expection therapeutic effect; And for some human organ effect sensitivity is needed the medicine of strict control transfusion speed and amount of infusion because individual variation body tolerance is different, particularly in operation, after the major operation and the state of an illness is critical needs the strict crowd who controls transfusion speed and amount of infusion; Can cause the state of an illness to increase the weight of, have in addition threat to life.Infusion pump is a kind of effective ways that solve transfusion speed, adopts power extruding transfusion, and amount of infusion is certain within a certain period of time, but during dropping speed and inhomogeneous; And machine cost and consumables cost are too high, only are applicable to first aid and serious symptom situation.The stable performance of SJK type numeral transfusion monitoring instrument, easy to use, easy to operate, but price comparison is expensive, uses less.And at present the common transfusion pipe is dripped speed and detect and to mainly contain ultrasound examination, infrared detection, capacitance detecting, whether this type of detects medicinal liquid influential also under study for action.And in the medical institutions in future; Particularly in some large and medium-sized hospitals; When patient infusion; Requirement meeting to the order of accuarcy of the numerical value of transfusion speed and amount of infusion is increasingly high, therefore, be badly in need of on the market a kind of not only practical but also cheap automatic drop controller product and reliably monitoring system occur.

Summary of the invention

The objective of the invention is to deficiency to prior art; Provide a kind of simple and practical, use cost is low, and to medicinal liquid have no radiation effect, control the transfusion drop monitoring system of transfusion speed and amount of infusion through handling drop sound wave vibration signal.

To achieve these goals, the present invention has adopted following technical scheme: a kind of transfusion drop monitoring system based on the sound wave vibration signal comprises terminal controller, ZigBee coordinator and PC host computer; Said terminal controller carries out wireless data transmission based on the ZigBee network through ZigBee coordinator and PC host computer; Described terminal controller comprises acoustic signals harvester, control main board and accurate stepping clamping motor; The tight contact surface of said acoustic signals harvester and Murphy's burette is provided with vibrating diaphragm, is provided with film chamber and tract in the acoustic signals harvester, and an end of tract communicates with the film chamber, and the other end is equipped with pick up; Pick up is connected with control main board, and control main board is connected with accurate stepping clamping motor.

Described acoustic signals harvester can be gathered the sound wave vibration signal that produces when fluid drips in the infusion bottle is fallen Murphy's burette; The sound wave vibration signal amplifies the back via tract and is detected by pick up; Be transferred to control main board after amplifying through electronics again and carry out the bandpass filtering algorithm process; Control main board is controlled the clamping degree of accurate stepping clamping motor after drawing result, and control main board is transferred to the PC host computer with result simultaneously.

Be provided with the ZigBee router between described terminal controller and the ZigBee coordinator, realize the wireless data remote transmission between a plurality of terminal controllers and the PC host computer.Setting up of ZigBee router can not only more be arranged terminal controller, and can be arranged into from PC host computer place far away, also can realize transfer of data.

Be provided with data processing module and wirelessly transmitting data module etc. in the described control main board.Control main board mainly is a single-chip microcomputer, and indoor design has date processing, bandpass filtering algorithm process, storage, transmission supervisor.Data processing module and wirelessly transmitting data module all be in single-chip microcomputer with computer language editor's functional program module with corresponding function, convert the electronic signal supervisor to as mainly having comprised bandpass filtering algorithm process, acoustic signals in the data processing module; The wirelessly transmitting data module has then mainly comprised the function program that realizes data processed result is transmitted through network coordinator the PC host computer.

Described wirelessly transmitting data module is a ZigBee wireless network transmissions data module; Can realize with hospital in ZigBee wireless network monitoring system carry out transfer of data.

The vibrating diaphragm that the present invention uses does not have too big requirement to material, as long as can cause the film of vibration, all can.

Pick up has the advantages that volume is little, simple in structure, electroacoustic performance is good, price is low, is widely used in the circuit such as cassette recorder, wireless microphone and acoustic control.Belong to the most frequently used capacitor microphone like Electret condenser microphone.Because the input and output impedance is very high, so a FET will be set as impedance transducer in this microphone enclosure, electret capacitor microphone needs direct-current working volts when work for this reason.And the function that pick up of the present invention need be realized does not need FET, only needs simple amplifier amplification of acoustic signals or audion amplification are got final product.

Operation principle of the present invention:

When the fluid drips in the infusion bottle was fallen Murphy's burette, after the generation sound wave was agitated the vibrating diaphragm of acoustic signals harvester, the closed gas of film intracavity shook thereupon; Because tract is carefully narrow, the gas pulsation amplitude just amplitude than film intracavity is a lot of greatly, has amplified the sound wave vibrations that the drop drippage produces thus; And frequency there is not change, and detect with pick up (miaow head) this moment, again through after amplifying; Send into control main board, realize converting the signal of telecommunication into by the sound wave vibrations, control main board is dripped blanking time according to drop; Through algorithm process, can obtain transfusion speed, more relatively according to setting value; Control the clamping degree of accurate stepping clamping motor, reach control transfusion speed purpose, and then data processed result is transferred to the PC host computer through the ZigBee wireless network to tube for transfusion.

Compared with prior art, advantage of the present invention:

1. the present invention is simple and practical, and control is accurate, and reliability is high, and capacity of resisting disturbance is strong, and production cost is low.

2. the present invention controls transfusion speed and amount of infusion through handling drop sound wave vibration signal, does not contact medicinal liquid or medicinal liquid is carried out radiation, the influence that the property of medicine of medicinal liquid is had no.

3. the present invention is in the ZigBee network monitoring system, and the terminal controller of a plurality of transfusion drops can be transferred to the PC host computer in the hospital via ZigBee router, ZigBee coordinator with the transfusion situation at each terminal, is convenient to hospital's unified monitoring, management.

Description of drawings

Fig. 1 is the structural representation of one embodiment of the invention.

Fig. 2 is the structural representation of another embodiment of the present invention.

Fig. 3 is the structural representation of terminal controller in the embodiment of the invention.

Reference numeral: infusion bottle 1, Murphy's burette 2, vibratingdiaphragm 3,film chamber 4,tract 5, pick up 6, controlmain board 7,acoustic signals harvester 8, accuratestepping clamping motor 9.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is further specified.

Embodiment 1:

Shown in accompanying drawing, the transfusion drop monitoring system based on the sound wave vibration signal that certain hospital uses comprises a plurality of terminal controllers, ZigBee coordinator and PC host computer; Said terminal controller carries out wireless data transmission based on the ZigBee network through ZigBee coordinator and PC host computer; Described terminal controller comprisesacoustic signals harvester 8, controlmain board 7 and accuratestepping clamping motor 9; Saidacoustic signals harvester 8 is provided with vibratingdiaphragm 3 with the tight contact surface of Murphy's burette 2, is provided withfilm chamber 4 andtract 5 in theacoustic signals harvester 8, and an end oftract 5 communicates withfilm chamber 4, and the other end is equipped with pick up 6; Pick up 6 is connected with controlmain board 7, and controlmain board 7 is connected with accuratestepping clamping motor 9 lines; Be provided with data processing module and wirelessly transmitting data module in the described controlmain board 7; Described wirelessly transmitting data module is a ZigBee wireless network transmissions data module, can realize with hospital in ZigBee wireless network monitoring system carry out transfer of data; The sound wave vibration signal that fluid drips in the described acoustic signals harvester 8 collection infusion bottles 1 produces when falling Murphy's burette 2; The sound wave vibration signal amplifies the back viatract 5 and is detected by pick up 6; Being transferred to controlmain board 7 after amplifying through electronics handles again; Draw after the result clamping degree of 7 pairs of accuratestepping clamping motors 9 of control main board and control, controlmain board 7 is transferred to the PC host computer with result simultaneously.That is, when the fluid drips in the infusion bottle 1 was fallen Murphy's burette 2, after the generation sound wave was agitated the vibratingdiaphragm 3 of acoustic signals harvester 8, the closed gas in thefilm chamber 4 shook thereupon; Becausetract 5 is carefully narrow, the gas pulsation amplitude is just a lot of greatly than the amplitude in thefilm chamber 4, has amplified the sound wave vibrations that the drop drippage produces thus; And frequency there is not change, and detect with pick up 6 this moment, after amplifying through electronics again; Send into controlmain board 7, realize converting the signal of telecommunication into by the sound wave vibrations, controlmain board 7 is dripped blanking time according to drop; Through algorithm process, can obtain transfusion speed, more relatively according to setting value; Control the clamping degree of 9 pairs of tube for transfusions of accurate stepping clamping motor, reach control transfusion speed purpose, and then data processed result is transferred to the PC host computer through the ZigBee wireless network.

Embodiment 2:

Shown in accompanying drawing, the transfusion drop monitoring system based on the sound wave vibration signal that certain hospital uses comprises terminal controller, ZigBee router, ZigBee coordinator and PC host computer; Said terminal controller carries out wireless data transmission based on the ZigBee network through ZigBee router, ZigBee coordinator and PC host computer; Described terminal controller comprisesacoustic signals harvester 8, controlmain board 7 and accuratestepping clamping motor 9; Saidacoustic signals harvester 8 is provided with vibratingdiaphragm 3 with the tight contact surface of Murphy's burette 2, is provided withfilm chamber 4 andtract 5 in theacoustic signals harvester 8, and an end oftract 5 communicates withfilm chamber 4, and the other end is equipped with pick up 6; Pick up 6 is connected with controlmain board 7, and controlmain board 7 is connected with accuratestepping clamping motor 9 lines; Be provided with data processing module and wirelessly transmitting data module in the described controlmain board 7; Described wirelessly transmitting data module is a ZigBee wireless network transmissions data module, can realize with hospital in ZigBee wireless network monitoring system carry out transfer of data; The sound wave vibration signal that fluid drips in the described acoustic signals harvester 8 collection infusion bottles 1 produces when falling Murphy's burette 2; The sound wave vibration signal amplifies the back viatract 5 and is detected by pick up 6; Being transferred to controlmain board 7 after amplifying through electronics handles again; Draw after the result clamping degree of 7 pairs of accuratestepping clamping motors 9 of control main board and control, controlmain board 7 is transferred to the PC host computer with result simultaneously.That is, when the fluid drips in the infusion bottle 1 was fallen Murphy's burette 2, after the generation sound wave was agitated thevibrating diaphragm 3 of acoustic signals harvester 8, the closed gas in thefilm chamber 4 shook thereupon; Becausetract 5 is carefully narrow, the gas pulsation amplitude is just a lot of greatly than the amplitude in thefilm chamber 4, has amplified the sound wave vibrations that the drop drippage produces thus; And frequency there is not change, and detect with pick up 6 this moment, after amplifying through electronics again; Send into controlmain board 7, realize converting the signal of telecommunication into by the sound wave vibrations, controlmain board 7 is dripped blanking time according to drop; Through algorithm process, can obtain transfusion speed, more relatively according to setting value; Control the clamping degree of 9 pairs of tube for transfusions of accurate stepping clamping motor, reach control transfusion speed purpose, and then data processed result is transferred to the PC host computer through the ZigBee wireless network.Set up router in the present embodiment, mainly be to arrange terminal controllers for can be more, and can be arranged into from PC host computer place far away and also can realize transfer of data.

Claims (5)

1. the transfusion drop monitoring system based on the sound wave vibration signal comprises terminal controller, ZigBee coordinator and PC host computer; It is characterized in that: said terminal controller carries out wireless data transmission based on the ZigBee network through ZigBee coordinator and PC host computer; Described terminal controller comprises acoustic signals harvester (8), control main board (7) and accurate stepping clamping motor (9); Said acoustic signals harvester (8) is provided with vibrating diaphragm (3) with the tight contact surface of Murphy's burette (2); Be provided with film chamber (4) and tract (5) in the acoustic signals harvester (8); One end of tract (5) communicates with film chamber (4), and the other end is equipped with pick up (6); Pick up (6) is connected with control main board (7), and control main board (7) is connected with accurate stepping clamping motor (9).

2. the transfusion drop monitoring system based on the sound wave vibration signal according to claim 1; It is characterized in that: the sound wave vibration signal that produces when the fluid drips in described acoustic signals harvester (8) the collection infusion bottle (1) is fallen Murphy's burette (2); The sound wave vibration signal amplifies the back via tract (5) and is detected by pick up (6); Be transferred to control main board (7) after amplifying through electronics again and carry out the bandpass filtering algorithm process; Control main board (7) is controlled the clamping degree of accurate stepping clamping motor (9) after drawing result, and control main board (7) is transferred to the PC host computer with result simultaneously.

3. the transfusion drop monitoring system based on the sound wave vibration signal according to claim 1 and 2; It is characterized in that: be provided with the ZigBee router between described terminal controller and the ZigBee coordinator, realize the wireless data remote transmission between a plurality of terminal controllers and the PC host computer.

4. the transfusion drop monitoring system based on the sound wave vibration signal according to claim 1 and 2 is characterized in that: be provided with data processing module and wirelessly transmitting data module in the described control main board (7).

5. the transfusion drop monitoring system based on the sound wave vibration signal according to claim 4 is characterized in that: described wirelessly transmitting data module is a ZigBee wireless network transmissions data module.

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