CN101530643A - Infusion speed and temperature controller - Google Patents

Abstract

The invention discloses an infusion speed and temperature controller, comprising a main microcontroller, a clock module, a speed control module and a temperature control module; wherein, the speed control module is connected with an infusion apparatus control clamp and the main microcontroller; the temperature control module is connected with the main microcontroller. The invention can simultaneously carry out accurate speed monitoring and constant temperature treatment on infused liquid medicines and achieve the aim of safe and reliable infusion, thus being widely applied in infusion rooms, anaesthetic rooms, internal curative departments, and to treatment of cardiovascular and cerebrovascular diseases, tumor chemotherapy and extra-gastrointestinal intravenous fluid infusion, etc.

Description

Transfusion speed and temperature double controller

Technical field

The present invention relates to a kind of controller of transfusion device, particularly a kind of transfusion speed and temperature double controller.

Background technology

The technical merit of medical apparatus and instruments directly affects medical level, concern we everyone healthy.Transfusion is clinical modal treatment measure.Science, normalized clinical administration method are accepted by numerous medical personnels, and particularly the transfusion speed of some specific drugs and especial patient and dosage especially want prudent, need accurately control, otherwise can produce serious consequence.In addition, if the temperature difference of transfusion liquid and blood of human body temperature is too big, can cause patient body to feel cold, and cause multiple complications such as vasoconstriction, spasm, joint aches, stomachache, more serious even possible threat to life.

Existing infusion pump, syringe pump, actuator, and product such as disposable transfusion device all adopts single transfusion control mode, and respectively have pluses and minuses: infusion pump, syringe pump, actuator degree of accuracy high security are also quite a lot of, but complex structure, volume is big, price is difficult to be accepted by common transfusion also than higher; Disposable transfusion device accuracy aspect can not reach the transfusion basic demand again, not reach the purpose of accurate control.

In the transfusion of traditional gravity, medical personnel are the degrees of tightness that relies on the control folder of regulating on the transfusion device to transfusion speed and precision, and the while calculates medicine liquid droplet number in the black Fei Shi pipe by rule of thumb and estimates transfusion speed.The control mode of traditional this transfusion speed depends on medical personnel's experience level, is difficult to accomplish the accurate control and the timing monitoring of transfusion speed; More can't carry out Temperature Treatment, thereby make the patient bear more misery because of the input of ice-cold medicinal liquid to the medicinal liquid of infusion.

Though have some to be provided with the infusion apparatus product that adds temperature controller on the market now, and can accomplish accurate temperature controlling; But volume is big, needs special-purpose lengthening transfusion device, and the price height is not easy to apply.

Summary of the invention

The shortcoming that the objective of the invention is to overcome prior art provides a kind of transfusion speed and temperature double controller with not enough, can control accurately the speed and the temperature of medicinal liquid.

Purpose of the present invention is achieved through the following technical solutions: transfusion speed and temperature double controller, comprise host microcontroller, clock module, it is characterized in that: also comprise rate control module, temperature control modules, described rate control module is connected with transfusion device control folder and host microcontroller, and described temperature control modules is connected with host microcontroller.

Described rate control module comprises transfusion speed motor, transfusion speed control valve, a number feedback transducer that connects successively, wherein transfusion speed motor, a number feedback transducer are connected with host microcontroller respectively, and the transfusion speed control valve is arranged on the transfusion device control folder.

Described number feedback transducer is the infrared number feedback transducer that is clipped on the Mo Shi pipe.

Described temperature control modules comprises heater and the temperature detection sensor that is connected, and heater is connected with host microcontroller respectively with temperature detection sensor.

Described heater is PTC (Positive Temperature Coefficient, a positive temperature coefficient) ring heater.

Above-mentioned transfusion speed and temperature double controller also comprise the operation push-button and the LCD display module that are connected with host microcontroller respectively.

The present invention has following advantage and effect with respect to prior art:

(1) adopts the mode of intelligent monitoring that medicinal liquid is carried out accurate speed, temperature control, simultaneously the medicinal liquid of infusion is realized accurate speed monitoring and constant temperature processing, reach the purpose of safe and reliable transfusion.

(2) use in the time of can carrying out continuous venoclysis medicine to the patient for hospital, clinically be widely used in transfusion room, anesthetic room, internal medicine, cardiovascular and cerebrovascular vessel, chemotherapy of tumors and the fluid infusion of parenteral vein etc., truly realize the two controls of transfusion precision and temperature, improve the safety and the reliability of transfusion greatly.

Description of drawings

Fig. 1 is a control principle block diagram of the present invention.

The specific embodiment

The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.

Embodiment

As shown in Figure 1,external power source 1 voltage is DC 12V, and providing of entire equipment work capacity is provided, and also is responsible for providing when Ni-MH battery 2 (voltage is 7.2V) charges energy simultaneously.Do not have when system under the situation ofexternal power source 1, Ni-MH battery 2 also can be responsible for the entire equipment operate as normal more than 4hours.Host microcontroller 3 is that the clock signal that relies onclock module 4 to provide promotes and works, and is the control maincenter of entire equipment, is responsible for the co-ordination of all inputs of control and output function module.In the present embodiment,host microcontroller 3 adopts the Atmega32 chip, promptly adopts 8 the AVR microcontrollers of the Flash able to programme with 32KB.Operation push-button 5 is connected withhost microcontroller 3, is the input module of entire equipment, and the control of all man-machine interactions refers to order parameter and all sets input through operation push-button 5.LCD display module 6 is connected withhost microcontroller 3, and the parameter and instruction of demonstration work and setting can be selected the liquid crystal display screen of 128 * 64 dot matrix for use.LED is connected withhost microcontroller 3 with buzzerabnormality warnings module 7, is to sound when device discovery has abnormal conditions or light warning, sends which kind of alarm and lies in the seriousness of abnormal conditions and deciding.Transfusionspeed control valve 9 is arranged on the transfusion device control folder,transfusion speed motor 8 is the power sources that promote transfusionspeed control valve 9, the size through drippingnumber feedback transducer 10 feedback control threshold switch and the speed parameter of setting contrast and revise and adjust, and finally reach the purpose of accurate control; The medicinal liquid of infusion heats through PTC (positive temperature coefficient)ring heater 11, revises the energy to 11 heating of PTC ring heater aftertemperature detection sensor 12 feedbacks, thereby reaches thermostatically controlled target.

Control principle of the present invention is: the size that at first relies on the transfusionspeed control valve 9 control transfusion speeds that are arranged on the transfusion device control folder; Rely on the infrarednumber feedback transducer 10 detection transfusion speeds be clipped on the Mo Shi pipe simultaneously, and with the speed feedback that detected tohost microcontroller 3;Host microcontroller 3 is regulated transfusionspeed control valve 9 according to feedback signal bytransfusion speed motor 8, further revise the size of transfusion device control folder, finally reach accurate, thereby reach the accurate purpose of controlling institute's infusion medicinal liquid speed by the transfusion speed infusion medicinal liquid of setting.Medicinal liquid is after speed controlling, again through 11 heating of PTC ring heater, inject at last in patient's body, the temperature of heating feeds back tohost microcontroller 3 in thePTC ring heater 11 aftertemperature detection sensor 12 detects,host microcontroller 3 is analyzed the output thatPTC ring heater 11 is adjusted in the back as calculated, finally adjust to set temperature value and keep instant and revise, finally reach the purpose of constant temperature medicinal liquid.

The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (7)

1. transfusion speed and temperature double controller, comprise host microcontroller, clock module, it is characterized in that: also comprise rate control module, temperature control modules, described rate control module is connected with transfusion device control folder and host microcontroller, and described temperature control modules is connected with host microcontroller.

2. transfusion speed according to claim 1 and temperature double controller, it is characterized in that: described rate control module comprises transfusion speed motor, transfusion speed control valve, a number feedback transducer that connects successively, wherein transfusion speed motor, a number feedback transducer are connected with host microcontroller respectively, and the transfusion speed control valve is arranged on the transfusion device control folder.

3. transfusion speed according to claim 2 and temperature double controller is characterized in that: described number feedback transducer is the infrared number feedback transducer that is clipped on the Mo Shi pipe.

4. transfusion speed according to claim 1 and temperature double controller is characterized in that: described temperature control modules comprises heater and the temperature detection sensor that is connected, and heater is connected with host microcontroller respectively with temperature detection sensor.

5. transfusion speed according to claim 4 and temperature double controller is characterized in that: described heater is the PTC ring heater.

6. transfusion speed according to claim 1 and temperature double controller is characterized in that: described transfusion speed also comprises operation push-button and the LCD display module that is connected with host microcontroller respectively with the temperature double controller.

7. transfusion speed according to claim 1 and temperature double controller is characterized in that: described host microcontroller adopts the Atmega32 chip.

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