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Measurement and control circuit for infusion temperature and infusion amount

A circuit and liquid medicine technology, applied in flow control, flow monitor, non-electric variable control, etc., can solve the problems of low liquid temperature, human discomfort, unfavorable monitoring, etc., to achieve convenient observation, avoid discomfort, and good infusion effect of effect

Inactive Publication Date: 2015-03-18
宋璟玟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: 1. The infusion flow rate of the liquid medicine cannot be directly reflected, which is not conducive to monitoring; secondly, when the liquid medicine is injected into the human body, there may be a problem of low temperature of the liquid medicine, which will cause discomfort to the human body

Method used

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  • Measurement and control circuit for infusion temperature and infusion amount

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 As shown, it is an infusion temperature and infusion volume measurement and control circuit, which mainly includes

[0016] Light-controlled switch: It is set on the side of the dripping hopper of the infusion set, and the light-controlled switch is turned on and off through the liquid drops in the dropping hopper. Every time a drop of liquid is dropped, the light-controlled switch is turned on and off once.

[0017] Counter: Count the number of liquid droplets according to the on-off of the light-controlled switch and send the counting result to the control unit.

[0018] Temperature detector: used to detect the infusion temperature in the infusion tube to form a temperature analog signal.

[0019] Analog-to-digital conversion unit: Convert the temperature analog signal into a digital signal and send it to the control unit.

[0020] Control unit: Calculate the infusion flow rate signal according to the received count signal; give the temperature disp...

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Abstract

The invention relates to a measurement and control circuit for infusion temperature and infusion amount. The measurement and control circuit for infusion temperature and infusion amount comprises a light-operated switch, a counter, a temperature detector, an analog-digital conversion unit, a control unit, a driving unit, a display unit and a heating circuit. The control unit calculates the flow velocity signal of the infusion flow according to the received count signal, provides the temperature display signal according to the digital signal relative to the temperature, compares the display signal with the set temperature and provides the control amount; the flow velocity signal of the infusion flow, the temperature display signal and the control amount are respectively sent to the driving unit; the infusion flow and the flow velocity can be displayed by the display unit to be conveniently watched by the patient and the medical workers, the flow velocity can be changed by adjusting the throttle valve in necessity for obtaining better infusion effect. In addition, the heating circuit is used for heating the medicine liquid to the temperature, which is close to the temperature of human body, and the discomfort caused by the low temperature of the medicine liquid can be avoided for the patient.

Description

technical field [0001] The invention relates to an infusion device, in particular to a measurement and control circuit device for counting infusion flow and controlling infusion temperature. Background technique [0002] In the prior art, there is an infusion set, its structure mainly includes an upper tube body, the upper end of the upper tube body is provided with an infusion tube needle and a ventilation tube needle for inserting into the infusion bottle, and the lower end of the upper tube body is connected with a drip funnel, and the drip funnel The lower end of the lower body is connected with a lower pipe body, the lower end of the lower pipe body is connected with a venous needle, and the lower pipe body is also provided with a throttle valve. When using the infusion set, insert the needle of the infusion tube and the needle of the ventilation tube into the infusion bottle prepared with the liquid medicine, and at the same time insert the needle of the vein into the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/44A61M5/168
CPCA61M5/16804A61M5/16886A61M5/44
Inventor 宋璟玟
Owner 宋璟玟
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