CN102133441A

CN102133441A - Medical infusion pump controlled by static low-power consumption power supply

Info

Publication number: CN102133441A
Application number: CN2011100980237A
Authority: CN
Inventors: 俞欣
Original assignee: SHANGHAI ZHENGHAO ELECTRONIC INSTRUMENT CO Ltd
Current assignee: SHANGHAI ZHENGHAO ELECTRONIC INSTRUMENT CO Ltd
Priority date: 2011-04-19
Filing date: 2011-04-19
Publication date: 2011-07-27
Anticipated expiration: 2031-04-19
Also published as: CN102133441B

Abstract

The invention discloses a medical infusion pump controlled by a static low-power consumption power supply, which comprises an infusion pump body. The medical infusion pump is characterized by further comprising a singlechip processing module, wherein a control signal output end of the singlechip processing module is connected with an output module; an output end of the output module is connected with a switch power module; the output end of the switch power module is connected with the infusion pump body through an infusion pump load interface; the output end of a key processing module is connected with input ends of the singlechip processing module and a circuit control module respectively; the output end of the circuit control module is connected with a voltage conversion module; and the voltage conversion module converts an input voltage into a working voltage of a singlechip and then outputs the working voltage to the singlechip processing module. The medical infusion pump controlled by the static low-power consumption power supply provided by the invention adopts the singlechip processing module which generates a closing control signal to make the infusion pump closed and in a low-power consumption state when the infusion pump is in a non-working state, so that the aim of reducing power consumption is fulfilled.

Description

A kind of medical infusion pump of low static power consumption power supply control

Technical field

The present invention relates to a kind of medical infusion pump of low static power consumption power supply control.

Background technology

At present medical infusion pump generally is used for the key switch circuit, and is all bigger from power consumption, when infusion pump is in off position (resting state), from power consumption every day about 2mA-6mA.If battery is pressed 2000mA/h and calculated, by average every day of electric current 4mA, infusion pump is being under the off position from power consumption, battery can only static work less than 17 days.Be equal to or greater than re-use infusion pump more than 17 days before, if in time charge for infusion pump, the infusion pump battery will be because of under-voltage cisco unity malfunction, even infusion pump is not all driven machine.

(not having under the alternating current situation) might make infusion pump not open or cisco unity malfunction influences first-aid patients from the power consumption reason because of infusion pump with battery powered when running into first-aid patients.Just because of the TV university of infusion pump consumable must so have been quickened cell degradation again often to battery charge, shortened the service life of battery greatly.Do not having alternating current especially, needing to meet an urgent need when using infusion pump, often do not reaching expection working time battery and just do not have.Also, accelerated replacing battery frequency, thereby improved equipment overhead cost because of the big reason of infusion pump power consumption.Abandoning of refuse battery also directly influences environmental conservation etc.

Summary of the invention

The purpose of this invention is to provide a kind of infusion pump at idle situation decline low power consumption energy.

In order to achieve the above object, technical scheme of the present invention has provided a kind of medical infusion pump of low static power consumption power supply control, comprise the infusion pump body, it is characterized in that: also comprise single chip processing module, the control signal output ends of single chip processing module connects output module, the outfan of output module connects switch power module, the outfan of switch power module connects the infusion pump body by the infusion pump loading interfaces, the input that connects single chip processing module and circuit control module by the outfan of key processing module respectively, the outfan of circuit control module connects the voltage transformation module, the input of circuit control module connects the voltage input interface, the circuit control module according to by the output of key processing module with circuit turn-on or end, the voltage transformation module will be to export to single chip processing module after the running voltage of single-chip microcomputer by the change in voltage of voltage input interface input.

The medical infusion pump of a kind of low static power consumption power supply control provided by the invention has the following advantages:

1, when infusion pump is in low static power consumption, from power consumption every day less than 0.1mA.Thus, behind the infusion pump 2000mA/h battery full charge, can keep charged 667 days.Than general infusion pump averaged static every day from power consumption 4mA(less than 17 days) reduced 3.9mA, make infusion pump can open work at any time, reduced cell charging times.

2, can monitor battery, make battery under the normalized curve state, charge, discharge, increase the service life; Reduce the frequency of battery altering, reduce equipment overhead cost, and protected environment.

3, simple in structure, cost is low, be convenient to manufacture.

Description of drawings

Fig. 1 is the circuit block diagram of the medical infusion pump of a kind of low static power consumption power supply control provided by the invention;

Fig. 2 is a voltage self-locking module circuit diagram;

Fig. 3 is a circuit control module circuit diagram.

The specific embodiment

For the present invention is become apparent, now with a preferred embodiment, and conjunction with figs. is described in detail below.

As shown in Figure 1, medical infusion pump for a kind of low static power consumption power supply control provided by the invention, comprise infusion pump body and single chip processing module, the control signal output ends of single chip processing module connects output module, the outfan of output module connects switch power module, the outfan of switch power module connects the infusion pump body by the infusion pump loading interfaces, the input that connects single chip processing module and circuit control module by the outfan of key processing module respectively, the outfan of circuit control module connects the voltage transformation module, the input of circuit control module connects the voltage input interface, by voltage input interface input 17V voltage, the circuit control module according to by the output of key processing module with circuit turn-on or end, the voltage transformation module will be to export to single chip processing module after the 5V running voltage of single-chip microcomputer by the 17V change in voltage of voltage input interface input.

Wherein, infusion pump is a kind of automatic infusion device, and it adopts micro-computer technology that infusion process is implemented control comprehensively, and to refer to that the formula peristaltic pump is a power source, is equipped with a plurality of pick offs key position is implemented monitoring, carries out the high accuracy infusion.

The single-chip microcomputer model that single chip processing module adopts is ATINY15, and it has following function: 1. timer/counter; 2. inside and outside interrupt source is arranged; 3.I/O mouthful; 4.A/D conversion mouth etc.

Purposes by key processing module is: 1. when button is closed, open switch power module and guarantee the infusion pump reliably working, 2. when button disconnects, the cut-off switch power module, the medical infusion pump of low static power consumption power supply control quits work (resting state), and the medical infusion pump that guarantees the control of low static power consumption power supply is in low from power consumption (every day from power consumption less than 0.1mA).

Press the outfan of key processing module, be connected with an I/O interface of single chip processing module, its purposes is to send control signal to give single chip processing module, and at this moment, single chip processing module is started working.

Be connected with voltage self-locking module between single chip processing module and circuit control module, its purposes is to guarantee circuit control module reliably working.

Further, between single chip processing module and circuit control module, be connected with voltage self-locking module.

Single chip processing module connects interrupt module, and interrupt module connects preserves data-interface, and interrupt module is closed the back at described infusion pump body and produced time-delay.

As shown in Figure 2, voltage self-locking module comprises diode D1, and the positive pole of diode D1 connects described single chip processing module, and by resistance R 1 ground connection, the negative pole of diode D1 connects described circuit control module.Voltage self-locking module remains unchanged and equipment working stability in running in order to guarantee voltage.

As shown in Figure 3, the circuit control module comprises resistance R 2, and resistance R 2 connects the base stage of audion Q1, the grounded emitter of audion Q1, the colelctor electrode of audion Q1 connects resistance R 3 backs and links to each other with the base stage of audion Q2, and the emitter stage of audion Q2 and colelctor electrode connect described voltage transformation module.Input 17V voltage service voltage conversion module when the circuit control module guarantees audion Q2 conducting, input 0V voltage service voltage conversion module when ending.

Work process of the present invention is: after button is pressed, input voltage is transformed to 5V voltage and supplies with single chip processing module after oversampling circuit control module and voltage transformation module, single chip processing module provides the conducting control signal to make output module produce 17V voltage and supplies with Switching Power Supply, Switching Power Supply provides to infusion pump load current and voltage, by aforesaid operations infusion pump is opened, and be in normal operating conditions.After button is pressed again, produce an interrupt signal, preserve data by preserving data-interface, simultaneously, the circuit control module disconnects, and making voltage transformation is that 0V supplies with single chip processing module, output module provides the closing control signal to produce 0V voltage by single-chip microcomputer and supplies with Switching Power Supply, Switching Power Supply is closed, and by aforesaid operations infusion pump is closed, and is in low power consumpting state.

Claims

1. the medical infusion pump of low static power consumption power supply control, comprise the infusion pump body, it is characterized in that: also comprise single chip processing module, the control signal output ends of single chip processing module connects output module, the outfan of output module connects switch power module, the outfan of switch power module connects the infusion pump body by the infusion pump loading interfaces, the input that connects single chip processing module and circuit control module by the outfan of key processing module respectively, the outfan of circuit control module connects the voltage transformation module, the input of circuit control module connects the voltage input interface, the circuit control module according to by the output of key processing module with circuit turn-on or end, the voltage transformation module will be to export to single chip processing module after the running voltage of single-chip microcomputer by the change in voltage of voltage input interface input.

2. the medical infusion pump of a kind of low static power consumption power supply control as claimed in claim 1 is characterized in that: be connected with voltage self-locking module between described single chip processing module and described circuit control module.

3. the medical infusion pump of a kind of low static power consumption power supply control as claimed in claim 2, it is characterized in that: described voltage self-locking module comprises diode D1, the positive pole of diode D1 connects described single chip processing module, and by resistance R 1 ground connection, the negative pole of diode D1 connects described circuit control module.

4. the medical infusion pump of a kind of low static power consumption power supply control as claimed in claim 1, it is characterized in that: described single chip processing module connects interrupt module, interrupt module connects preserves data-interface, and interrupt module is closed the back at described infusion pump body and produced time-delay.

5. the medical infusion pump of a kind of low static power consumption power supply control as claimed in claim 1, it is characterized in that: described circuit control module comprises resistance R 2, resistance R 2 connects the base stage of audion Q1, the grounded emitter of audion Q1, the colelctor electrode of audion Q1 connects resistance R 3 backs and links to each other with the base stage of audion Q2, and the emitter stage of audion Q2 and colelctor electrode connect described voltage transformation module.