阅读说明：本技术 一种可智能调控墙壁负压吸引的阀门装置 (Valve device capable of intelligently regulating and controlling wall negative pressure suction ) 是由 任广凯 吴丹凯 彭传刚 袁宝明 刘贺 吴阳 于 2019-11-05 设计创作，主要内容包括：本发明公开了一种可智能调控墙壁负压吸引的阀门装置,涉及医疗器械技术领域,包括控制装置、电机座、电机、阀门、带信号输出的气压表和电源,电机的末端固定在电机座上且电机的输出端与阀门的阀杆连接并传递扭矩,电机座与阀门固连,控制装置与电源通过导线连接,电机与控制装置通过导线连接,带信号输出的气压表连接在阀门的进气端并与控制装置连接,该调控阀门装置通过连接插头将其安装于墙壁负压吸引通道上,通过带信号输出的气压表检测阀门出口压力,并与控制装置内部设定压力值比较,控制装置输出调控信号,通过驱动步进电机,旋转阀门,经过阀芯的节流,变为阀后压力,从而实现对墙壁负压吸引力的智能调控。(The invention discloses a valve device capable of intelligently regulating and controlling wall negative pressure suction, which relates to the technical field of medical instruments and comprises a control device, a motor seat, a motor, a valve, a barometer with signal output, and a power supply, wherein the tail end of the motor is fixed on the motor seat, the output end of the motor is connected with a valve rod of the valve and transmits torque, the motor seat is fixedly connected with the valve, the control device is connected with the power supply through a lead, the motor is connected with the control device through a lead, the barometer with the signal output is connected with the air inlet end of the valve and is connected with the control device, the regulating and controlling valve device is arranged on a wall negative pressure suction channel through a connecting plug, the outlet pressure of the valve is detected through the barometer with the signal output, the outlet pressure of the valve is compared with the set pressure value in the control device, the control, and the pressure is changed into the pressure behind the valve, so that the intelligent regulation and control of the wall negative pressure attraction are realized.)

1. The utility model provides a but valve gear of intelligent control wall vacuum aspiration which characterized in that: including controlling means (1), motor cabinet (2), motor (3), valve (4), barometer (5) and the power of signal output, the end of motor (3) is fixed on motor cabinet (2) and the output of motor (3) is connected and the transmission moment of torsion with valve rod (40) of valve (4), motor cabinet (2) link firmly with valve (4), controlling means (1) passes through the wire with the power and is connected, motor (3) pass through the wire with controlling means (1) and are connected, barometer (5) of signal output are connected at the inlet end of valve (4) and are connected with controlling means (1).

2. The valve device capable of intelligently regulating and controlling negative pressure suction of the wall according to claim 1, wherein: the control device (1) comprises a display screen, a control button and a single chip microcomputer.

3. The valve device capable of intelligently regulating and controlling negative pressure suction of the wall according to claim 1, wherein: the control device (1) is a PLC module.

4. The valve device capable of intelligently regulating and controlling negative pressure suction of the wall according to claim 1, wherein: the control device (1) is a timer.

5. The valve device capable of intelligently regulating and controlling negative pressure suction of the wall according to claim 1, wherein: the motor (3) is a stepping motor.

6. The valve device capable of intelligently regulating and controlling negative pressure suction of the wall according to claim 1, wherein: the power supply is a battery.

7. The valve device capable of intelligently regulating and controlling negative pressure suction of the wall according to claim 1, wherein: the valve (4) is a plug valve.

8. The valve device capable of intelligently regulating and controlling negative pressure suction of the wall according to claim 1, wherein: the valve (4) comprises a valve rod (40), an upper valve cover (41), a sleeve (42), a valve core (43), a valve seat (44) and a valve body (45).

9. The valve device capable of intelligently regulating and controlling negative pressure suction of the wall according to claim 1, wherein: the air pressure meter (5) with the signal output is an electronic air pressure meter with the signal output.

10. The valve device capable of intelligently regulating and controlling negative pressure suction of the wall according to claim 2, wherein: the model of the single chip microcomputer is 80C 51.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a valve device capable of intelligently regulating and controlling wall negative pressure suction, which mainly provides automatic regulation and control for a continuous closed negative pressure drainage technology.

Background

Wound healing is a very important aspect of surgical treatment, and as early as the seventies of the twentieth century, there are many documents in the soviet union about exploring wounds and wounds that are difficult to heal by applying negative pressure therapy.

The continuous closed negative pressure drainage treatment does not need to change the medicine regularly, the affected limb of the patient does not need to move regularly, the whole operation time is short, the content is simple, and the continuous closed negative pressure drainage treatment has a leap progress compared with the traditional complex binding process. The continuous closed negative pressure drainage technology comprises the following steps: suction Wound Closure Therapy (SWCT), superficial Negative Pressure Therapy (TNP), Vacuum Assisted Closure (VAC), Vacuum Sealing Drainage (VSD), Negative Pressure Wound Therapy (NPWT), and the like. The negative pressure wound treating technology is basically the same application method and technology, namely, the special foam material is covered and sealed by a medical semipermeable membrane and connected with a negative pressure suction device, so that the aims of increasing wound drainage, improving wound microcirculation, promoting wound healing and the like are fulfilled.

The existing bedside electric negative pressure suction apparatus has the defects of high working noise of a compressor, poor compliance of patients, poor mechanical stability after long-time working, high equipment price and certain limitation.

With the construction and development of hospitals, hospitals in various places are provided with central suction systems, and the drainage of wounds is achieved through wall negative pressure suction, so that infection and lacuna formation are avoided. The suction system has no noise, constant pressure, no air leakage, no seepage accumulation in wound surface, and is favorable to the growth of granulation tissue, promote skin grafting and promote wound healing.

The existing wall type negative pressure suction terminal is matched with a medical negative pressure meter, a pressure meter is arranged on a wall negative pressure suction device, a drainage tube is connected with a sterile glass bottle, and the wall type negative pressure suction terminal is connected with a continuous negative pressure drainage device sealed on a wound surface. The pressure can be adjusted at any time according to the suction condition in the application, but the pressure cannot be adjusted automatically and dynamically, intermittent or pulse type suction of a continuous closed negative pressure drainage technology is not realized, and the method has certain limitation.

Disclosure of Invention

The invention aims to solve the defects in the background technology, and provides a valve device capable of intelligently regulating and controlling wall negative pressure suction, which is used for solving the technical problems that the existing bedside electric negative pressure suction device compressor has high working noise, poor patient compliance, poor mechanical stability after long-time working, expensive equipment, certain limitation, incapability of realizing automatic and dynamic regulation, and certain limitation due to no realization of intermittent or pulse suction of a continuous closed negative pressure drainage technology.

The utility model provides a but valve gear of intelligent control wall negative pressure attraction, includes controlling means, motor cabinet, motor, valve, the barometer of signal output of signal and power, the end of motor is fixed on the motor cabinet and the output of motor is connected and the transmission moment of torsion with the valve rod of valve, the motor cabinet links firmly with the valve, controlling means passes through the wire with the power and is connected, the motor passes through the wire with controlling means and is connected, the barometer of signal output of signal is connected at the inlet end of valve and is connected with controlling means.

Preferably, the control device comprises a display screen, a control button and a single chip microcomputer.

Preferably, the control device is a PLC module, and the PLC module can improve the reliability, the anti-interference performance, the accuracy and the universality of the control system.

Preferably, the control device is a timer.

Preferably, the motor is a stepping motor.

Preferably, the power source is a battery.

Preferably, the valve is a plug valve.

Preferably, the valve comprises a valve rod, an upper valve cover, a sleeve, a valve core, a valve seat and a valve body.

Preferably, the barometer with the signal output is an electronic barometer with the signal output.

Preferably, the single chip microcomputer is 80C51 in model number.

The regulating valve device is installed on a wall negative pressure suction channel through a connecting plug, the pressure meter with signal output detects the pressure of a valve outlet, the pressure is compared with the set pressure value in the control device, the control device outputs a regulating signal, the valve is rotated through driving a stepping motor, the valve core is throttled, the pressure is changed into the pressure behind the valve, and therefore intelligent regulation and control of wall negative pressure suction are achieved.

The invention has the beneficial effects that:

1. the invention adopts the valve, the barometer with signal output, the stepping motor and other elements as working components, and can realize the intelligent regulation and control of the negative pressure at the outlet of the valve.

2. The invention eliminates the defect that the traditional medical negative pressure meter cannot accurately control the negative pressure and improves the pressure control precision.

3. The invention adopts an intelligent control mode to realize the automatic adjustment of the pressure value of the wall negative pressure port and reduce the working intensity of medical workers.

4. The precise dynamic regulation and control of the negative pressure at the outlet of the valve are completed by matching with an intelligent regulation module, and the intermittent or pulse type suction mode of the continuous closed negative pressure drainage technology is realized. The pressure can be adjusted at any time according to the suction condition in clinical application, which is beneficial to dynamic suction and has simple operation.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic view of the structure of the motor connected to the valve.

Fig. 3 is a cross-sectional view of the valve of the present invention.

Fig. 4 is a schematic view of the working state of the present invention.

Detailed Description

Please refer to fig. 1 to 4, a valve device capable of intelligently controlling wall negative pressure suction, comprising a control device 1, a motor base 2, a motor 3, a valve 4, a barometer 5 with signal output and a power supply, wherein the end of the motor 3 is fixed on the motor base 2, the output end of the motor 3 is connected with a valve rod 40 of the valve 4 and transmits torque, the motor base 2 is fixedly connected with the valve 4, the control device 1 is connected with the power supply through a wire, the motor 3 is connected with the control device 1 through a wire, and the barometer 5 with signal output is connected with the air inlet end of the valve 4 and is connected with the control device 1.

Preferably, the control device 1 comprises a display screen, a control button and a single chip microcomputer.

Preferably, the control device 1 is a PLC module, and the PLC module can improve the reliability, the interference resistance, the accuracy and the versatility of the control system.

Preferably, the control device 1 is a timer.

Preferably, the motor 3 is a stepping motor.

Preferably, the power source is a battery.

Preferably, the valve 4 is a plug valve.

Preferably, the valve 4 includes a valve stem 40, an upper valve cover 41, a sleeve 42, a valve core 43, a valve seat 44 and a valve body 45.

Preferably, the air pressure meter 5 with signal output is an electronic air pressure meter with signal output.

Preferably, the single chip microcomputer is 80C51 in model number.

The working principle and the using process of the embodiment are as follows:

the specific process of driving the stepping motor to act comprises the following steps: the control device 1 obtains a valve outlet pressure value through a barometer 5 with signal output, and then compares the valve outlet pressure value with a set pressure value in the control device 1 to judge whether the pressure is normal, if the deviation between the measured pressure value and the set pressure value is within an allowable range, a stepping motor does not need to act, and a system performs program circulation, namely performs continuous negative pressure suction on a wound of a patient; if the deviation between the measured pressure value and the set pressure value exceeds the allowable range, the output signal of the control device 1 needs to be changed according to the actual deviation condition, the stepping motor is driven to rotate in the corresponding direction and angle, the pressure of the valve is adjusted, after the pressure adjustment is completed, the system performs program circulation again, the method used for the pressure detection is automatic detection, and the PLC module is used as a control device to control the opening and closing of the valve or compare and adjust the outlet pressure of the valve, belongs to the prior art and is commonly used in industrial plants, unmanned plants or dangerous chemical plants.

The manual driving of the stepping motor to rotate corresponding direction and angle can also be adopted to further adjust the negative pressure value flowing through the valve, because the pressure value sucked by the central suction system of each hospital is not changed, and the pressure value possibly slightly different in different hospitals can be changed, under the condition, the invention is inserted into a wall negative pressure channel, the pressure value of the current valve body 45 and the connection end of the drainage tube can be obtained by observing the barometer 5, and if the pressure is too large or too small, the stepping motor is manually controlled to rotate corresponding direction and angle, so that the adjustment and setting of the pressure value are completed.

The specific method when the system needs to reset the pressure is as follows: the single chip microcomputer detects that the pressure setting key is input, namely, a keyboard input program is switched to carry out pressure setting, after the setting is finished, data are automatically stored in the EPROM, the set pressure value stored in the EPROM is read again, then the main program is jumped into to read the advancing and outlet pressure values, and the program is circularly driven to regulate and control the pressure valve of the stepping motor until the pressure meets the requirement.

The working principle and the using process of the embodiment are as follows:

referring to fig. 1 to 3, one end of the valve body 45 is connected to the drainage tube, the other end is connected to the negative pressure channel through the connection plug, different control programs are set according to different situations for medical personnel, the control device 1 controls the motor 3 to further control the valve core 43 to move up and down in the sleeve 42, the flow rate in the valve 4 can be controlled through the movement of the valve core 43, and the pressure in the valve 4 can be clearly displayed by the barometer 5.