CN111904814A - Treatment device and method of detecting blood flow at treatment site - Google Patents

Abstract

The present invention provides a treatment device and a method for detecting blood flow at a treatment site. The treatment device includes: a detection module, a control module, an inflation module, a deflation module and an air bag; the detection module is used for real-time monitoring of the treatment The blood flow of the part is detected, and the detected detection data is sent to the control module in real time; the control module is used to receive the detection data sent by the detection module in real time, and send the detection module to the detection module in real time. The detection data is processed, when it is determined according to the detection data that blood flows back from the treatment site, the inflation module is controlled to inflate the air bag, and when it is determined according to the detection data that blood flows to the treatment site When the position is in place, the deflation module is controlled to extract the gas in the air bag. The present invention provides a treatment device and a method for detecting the blood flow of a treatment site, and better treatment effect can be obtained through the treatment device.

Description

Treatment device and method of detecting blood flow at treatment site

technical field

The present invention relates to the technical field of medical equipment, and in particular, to a treatment device and a method for detecting blood flow at a treatment site.

Background technique

Platelets and fibrinogen aggregate together to form thrombus, which can easily block blood vessels, which can easily lead to myocardial infarction, cerebral infarction, limb arterial infarction, and thromboembolism. Because the blood in the veins of the lower extremities is not easy to return due to the action of gravity, it is more likely to form thrombosis when the venous valve function of the lower extremity is damaged, the venous inflammation of the lower extremity, the deep veins of the lower extremity are squeezed, and the blood is hypercoagulable. Currently, blood flow to the treatment site is promoted by means of an air wave manometer. The air wave pressure instrument repeatedly inflates and deflates the airbags bound to the treatment site (such as limbs) to form a circulatory pressure on the treatment site, squeeze the treatment site evenly and orderly, promote blood flow, and accelerate treatment. It helps to prevent the formation of blood clots and prevent limb edema.

However, the existing air wave pressure instrument squeezes the treatment part according to the natural frequency, it is very likely that when the air wave pressure instrument is squeezing, the heart is also ejecting blood to the treatment part, so that the treatment part cannot be promoted. The effect of blood flow, the treatment effect is poor.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a treatment device and a method for detecting blood flow at a treatment site, and better treatment effects can be obtained through the treatment device.

An embodiment of the present invention provides a treatment device, including: a detection module, a control module, an inflation module, a deflation module, and an air bag;

Wherein, the detection module, the inflation module and the deflation module are all connected to the control module, and the inflation module and the deflation module are all connected to the airbag, wherein the airbag acts on the treatment part;

The detection module is used to detect the blood flow condition of the treatment site in real time, and send the detected detection data to the control module in real time;

The control module is configured to receive the detection data sent by the detection module in real time, and process the detection data sent by the detection module in real time. When the site is backflowing, the inflation module is controlled to inflate the airbag, and when it is determined according to the detection data that blood flows to the treatment site, the deflation module is controlled to extract the gas in the airbag.

Optionally,

The inflatable module includes: a first air tank and a first valve;

the first air storage tank is connected with the air bag through the first valve;

the first valve is connected to the control module;

The air pressure in the first air storage tank is greater than the air pressure in the air bag;

The control module is configured to control the first valve to open when it is determined according to the detection data that blood flows back from the treatment site, so that the first air storage tank is inflated to the air bag, and when the When the air pressure in the airbag is within a first preset air pressure range, the first valve is controlled to be closed, so that the first air storage tank stops inflating the airbag.

Optionally,

The degassing module includes: a second air storage tank and a second valve;

the second air storage tank is connected with the air bag through the second valve;

the second valve is connected to the control module;

The air pressure in the second air storage tank is less than the air pressure in the air bag;

The control module is configured to control the second valve to open when it is determined according to the detection data that the blood flows to the treatment site, so that the second air storage tank can draw out the gas in the air bag, and when the When the air pressure in the air bag is within the second preset air pressure range, the second valve is controlled to be closed, so that the second air storage tank stops extracting the air from the air bag.

Optionally,

The treatment device further includes: a first air pressure sensor;

the first air pressure sensor is arranged inside the airbag;

the first air pressure sensor is connected to the control module;

The first air pressure sensor is used to sense the air pressure in the airbag in real time, and send the sensed air pressure value in the airbag to the control module;

The control module is configured to control the inflation module and the deflation module according to the air pressure value in the airbag sent by the first air pressure sensor.

Optionally,

The treatment device further includes: a positive pressure pump and a second air pressure sensor;

the positive pressure pump is connected to the first air storage tank;

the second air pressure sensor is arranged inside the first air storage tank;

Both the positive pressure pump and the second air pressure sensor are connected to the control module;

The second air pressure sensor is used to sense the air pressure in the first air storage tank in real time, and send the sensed air pressure value in the first air storage tank to the control module;

The control module is configured to control the positive pressure pump to inflate the first air storage tank according to the air pressure value in the first air storage tank sent by the second air pressure sensor, so as to make the first air storage tank inflated. The air pressure in an air storage tank is within a third preset air pressure range.

Optionally,

The treatment equipment further includes: a negative pressure pump and a third air pressure sensor;

the negative pressure pump is connected with the second air storage tank;

the third air pressure sensor is arranged inside the second air storage tank;

Both the negative pressure pump and the third air pressure sensor are connected to the control module;

The third air pressure sensor is used to sense the air pressure in the second air storage tank in real time, and send the sensed air pressure value in the second air storage tank to the control module;

The control module is configured to control the negative pressure pump to pump air to the first air storage tank according to the air pressure value in the first air storage tank sent by the third air pressure sensor, so that the The air pressure in the first air storage tank is within a fourth preset air pressure range.

Optionally,

the detection module, configured to detect the blood volume wave of the treatment site in real time, and send the blood volume wave to the control module;

The control module is configured to receive the blood volume wave sent by the detection module in real time, process the blood volume wave in real time, and control the deflation when the rising edge of the blood volume wave is determined. The module draws out the gas in the air bag, and controls the inflation module to inflate the air bag when the first flat segment after the rising edge of the blood volume wave is determined.

Optionally,

The detection module is configured to sample the amount of hemoglobin in the treatment site according to a preset sampling rate, and send the sampling value obtained by sampling to the control module;

The control module is configured to receive the sampling value sent by the detection module in real time, and when the ratio of the first sampling value to the last sampling value in the first consecutive first number of sampling values is greater than or equal to the first threshold, determine the rising edge of the blood volume wave.

Optionally,

The detection module is configured to sample the amount of hemoglobin in the treatment site according to a preset sampling rate, and send the sampling value obtained by sampling to the control module;

The control module is used to receive the sampling value sent by the detection module in real time, and when any two adjacent sampling values in the second consecutive number of sampling values satisfy the formula 1, determine the value of the blood volume wave. a flat segment;

Wherein, the formula one is:

Wherein, V _n+1 is the n+1 th sampling value in the second consecutive number of sampling values, V _n is the n th sampling value in the second consecutive number of sampling values, and q is the second threshold.

In a second aspect, an embodiment of the present invention provides a method for detecting blood flow at a treatment site, including:

Obtain the blood volume wave of the treatment site in real time;

determining the rising edge of the blood volume wave at the treatment site;

When the rising edge of the blood volume wave at the treatment site is determined, determining that the blood flows to the treatment site;

determining the first flat segment after the rising edge of the blood volume wave;

When the first flat segment after the rising edge of the blood volume wave is determined, it is determined that blood is flowing back from the treatment site.

Optionally,

The real-time acquisition of the blood volume wave of the treatment site includes:

acquiring, in real time, a sampling value obtained by sampling the amount of hemoglobin in the treatment site according to a preset sampling rate;

The determining of the rising edge of the blood volume wave at the treatment site includes:

Determine the ratio of the first sample value to the last sample value in the first consecutive number of sample values;

When the ratio of the first sampling value to the last sampling value in the first number of consecutive sampling values is greater than or equal to the first threshold value, the rising edge of the blood volume wave at the treatment site is determined.

Optionally,

The real-time acquisition of the blood volume wave of the treatment site includes:

acquiring, in real time, a sampling value obtained by sampling the amount of hemoglobin in the treatment site according to a preset sampling rate;

The determining of the first flat segment after the rising edge of the blood volume wave includes:

Determine whether any two adjacent sample values in the second consecutive number of sample values satisfy Equation 1;

Wherein, the formula one is:

Wherein, V _n+1 is the n+1 th sample value in the second consecutive number of sample values, V _n is the n th sample value in the second consecutive number of sample values, and q is the second threshold;

When any two adjacent sampling values in the second consecutive number of sampling values satisfy the formula 1, a flat segment of the blood volume wave is determined.

In the embodiment of the present invention, the detection module detects the blood flow of the treatment site in real time, and sends the detection data to the control module. The control module determines according to the detection data that when the blood flows back from the treatment site to the heart, it controls the inflation module to inflate the airbag, and the airbag inflates the airbag. Squeeze the treatment part to promote the blood backflow in the treatment part. When the control module determines that the blood flows to the treatment part according to the detection data, it controls the deflation module to extract the gas in the air bag to prevent the air bag from squeezing the treatment part and prevent the air bag from obstructing the blood. flow. In the embodiment of the present invention, the airbag acts on the treatment site based on the blood flow condition of the treatment site to promote the blood circulation of the treatment site, so that better treatment effect can be obtained.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a treatment device according to an embodiment of the present invention;

2 is a schematic diagram of a waveform of a blood volume wave provided by an embodiment of the present invention;

3 is a schematic diagram of another treatment device provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of another therapeutic device provided by an embodiment of the present invention;

FIG. 5 is a flowchart of a method for detecting blood flow at a treatment site according to an embodiment of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work are protected by the present invention. scope.

The air wave pressure instrument can squeeze the treatment part to promote the blood circulation of the treatment part, mainly to promote the blood return of the treatment part to the heart. However, the existing air wave pressure instrument squeezes the treatment part according to the natural frequency. No matter what the current blood flow of the treatment part is, the air wave pressure instrument will squeeze the treatment part according to the natural frequency. That is to say, when the heart contracts and ejects blood to the treatment site and blood flows to the treatment site, the air wave pressure meter may squeeze the treatment site, which will not promote the blood circulation of the treatment site, but will hinder the blood circulation of the treatment site. Causes damage to the treatment site; when the diastole causes blood from the treatment site to return to the heart, the airwave pressure gauge may not squeeze the treatment site, which will not promote blood circulation at the treatment site. It can be seen that the treatment effect of the existing air wave pressure instrument is poor.

In order to obtain a better treatment effect, as shown in FIG. 1 , an embodiment of the present invention provides a treatment device, including: a detection module 101 , a control module 102 , an inflation module 103 , a deflation module 104 and an air bag 105 ;

The detection module 101, the inflation module 103 and the deflation module 104 are all connected to the control module 102, and the inflation module 103 and the deflation module 104 are both connected to the airbag 105, wherein , the air bag 105 acts on the treatment site;

The detection module 101 is used to detect the blood flow condition of the treatment site in real time, and send the detected detection data to the control module 102 in real time;

The control module 102 is configured to receive the detection data sent by the detection module 101 in real time, and process the detection data sent by the detection module 101 in real time. When the treatment site is backflowing, the inflation module 103 is controlled to inflate the airbag 105, and when it is determined according to the detection data that blood flows to the treatment site, the deflation module 104 is controlled to extract the gas in the airbag .

In the embodiment of the present invention, the detection module detects the blood flow of the treatment site in real time, and sends the detection data to the control module. The control module determines according to the detection data that when the blood flows back from the treatment site to the heart, it controls the inflation module to inflate the airbag, and the airbag inflates the airbag. Squeeze the treatment part to promote the blood backflow in the treatment part. When the control module determines that the blood flows to the treatment part according to the detection data, it controls the deflation module to extract the gas in the air bag to prevent the air bag from squeezing the treatment part and prevent the air bag from obstructing the blood. flow. In the embodiment of the present invention, the airbag acts on the treatment site based on the blood flow of the treatment site, thereby promoting the blood circulation of the treatment site, and can obtain a better treatment effect.

Wherein, the detection module includes: a clip-on volumetric wave sensor;

The clip-type volumetric wave sensor is clamped at the treatment site, and the clip-type volumetric wave sensor emits infrared light with a wavelength of 640 nm to detect the blood flow in the treatment site.

The clip-on volumetric wave sensor, also known as the opposite-beam infrared finger sleeve, includes an infrared emitting LED and an external receiving tube. The infrared emitting LED is used to emit infrared light with a wavelength of 640 nm, and the external receiving tube is used to receive the infrared light. When using the clip-type volumetric wave sensor, the clip-type volumetric wave sensor is clamped to the treatment site (for example: toes, fingers, etc.), so that the infrared light emitted by the infrared emission LED passes through the treatment site and is received by the external receiving tube, and the external The receiving tube sends detection data to the control module according to the received infrared light.

In addition, the wavelength of the infrared light emitted by the clip-type volumetric wave sensor is 640 nm, and the wavelength of 640 nm is more sensitive to the blood flow, and can accurately reflect the blood flow of the treatment site.

Wherein, the above-mentioned detection data may be the blood volume wave of the treatment site.

In an embodiment of the present invention, the inflatable module includes: a first air storage tank and a first valve;

the first air storage tank is connected with the air bag through the first valve;

the first valve is connected to the control module;

The air pressure in the first air storage tank is greater than the air pressure in the air bag;

The control module is configured to control the first valve to open when it is determined according to the detection data that blood flows back from the treatment site, so that the first air storage tank is inflated to the air bag, and when the When the air pressure in the airbag is within a first preset air pressure range, the first valve is controlled to be closed, so that the first air storage tank stops inflating the airbag.

In the embodiment of the present invention, the inflation module includes an air storage tank and a valve, which are a first air storage tank and a first valve, respectively. A first valve is arranged between the first air storage tank and the air bag. When the first valve is opened, the first air storage tank is communicated with the air bag, and when the first valve is closed, the first air storage tank is not communicated with the air bag. The air pressure in the first air storage tank is greater than the air pressure in the air bag. When the air bag needs to be inflated, the air bag can be quickly inflated due to the high air pressure in the first air storage tank. The higher the air pressure, the faster the inflation speed. For example, the air pressure in the first air storage tank can be 100kPa. The capacity of the first air storage tank is also larger than that of the airbag. Preferably, the capacity of the first air storage tank is 10 times or more than the capacity of the airbag.

Of course, the inflation module can also be realized by an air pump. However, if the airbag is to be inflated instantaneously, a large air pump is required, and the air pump needs to have a very large flow rate and start very fast. Obviously, the air pump is very demanding. The air pump that meets the above requirements is bulky, heavy and expensive, and its application in such a treatment device will increase the cost of the treatment device and make the treatment device very inconvenient to carry.

In the embodiment of the present invention, an air storage tank is used to inflate the airbag, and the inflation speed of the airbag can be increased only by increasing the air pressure of the air storage tank, thereby achieving the purpose of instantaneous inflation. Obviously, the cost of the treatment device can be lower and portable by means of an air storage tank.

In addition, the first valve may be a solenoid valve, and the control module may control the solenoid valve. When the control module controls the first valve to open, the air pressure in the first air storage tank is greater than the air pressure in the airbag, so that the first air storage tank can be inflated to the airbag. Preferably, the air pressure in the first air storage tank is always It is greater than the air pressure in the airbag, so that the inflation speed of the first air storage tank to the airbag can be accelerated.

In addition, the first valve can be a normally closed valve, that is, the first valve is in a closed state when the power is not turned on, and the air circuit of the first valve is connected after the power is turned on, so that the first air storage tank can quickly inflate the airbag.

A solenoid valve may be arranged on the first air storage tank, and the pressure of the first air storage tank is relieved through the solenoid valve. The solenoid valve can be a normally open valve, that is, the solenoid valve is in a state of communicating with the atmosphere when it is not energized, and the solenoid valve is closed after being energized. Its function is to make the air pressure in the first air tank equal to 1 when the treatment equipment is not working. atmospheric pressure.

In an embodiment of the present invention, the treatment device further comprises: a positive pressure pump and a second air pressure sensor;

the positive pressure pump is connected to the first air storage tank;

the second air pressure sensor is arranged inside the first air storage tank;

Both the positive pressure pump and the second air pressure sensor are connected to the control module;

The second air pressure sensor is used to sense the air pressure in the first air storage tank in real time, and send the sensed air pressure value in the first air storage tank to the control module;

The control module is configured to control the positive pressure pump to inflate the first air storage tank according to the air pressure value in the first air storage tank sent by the second air pressure sensor, so as to make the first air storage tank inflated. The air pressure in an air storage tank is within a third preset air pressure range.

In the embodiment of the present invention, after the first air storage tank inflates the airbag, the air pressure in the first air storage tank will decrease. In order to stabilize the air pressure in the first air storage tank within the third preset air pressure range, it is necessary to The first air tank is inflated by a positive pressure pump. The control module controls the operation of the positive pressure pump based on the air pressure value in the first air storage tank output by the second air pressure sensor, so that the air pressure in the first air storage tank is maintained within a third preset air pressure range. Wherein, the positive pressure pump is an air pump, which inflates the first air storage tank under the control of the control module.

The second air pressure sensor may be an air pressure sensor with temperature compensation, which can more accurately sense the air pressure in the first air storage tank. The second air pressure sensor range may be 150kPa. The positive pressure pump can be a DC 24V air pump with a flow rate of 60L/mi and a maximum air pressure of 280kPa.

The control module can control the positive pressure pump to inflate the first air storage tank when the first air storage tank stops inflating the airbag. Of course, it can also control the positive pressure pump to inflate the first air storage tank at any time, as long as the first air storage tank is inflated. The air pressure in the air storage tank only needs to be maintained within the third preset air pressure range before inflating the airbag next time.

A positive pressure pump driving circuit may also be included between the positive pressure pump and the control module, and the control signal sent by the control module to the positive pressure pump is amplified by the positive pressure pump driving circuit to drive the positive pressure pump to work reliably.

In an embodiment of the present invention, the air release module includes: a second air storage tank and a second valve;

the second air storage tank is connected with the air bag through the second valve;

the second valve is connected to the control module;

The air pressure in the second air storage tank is less than the air pressure in the air bag;

The control module is configured to control the second valve to open when it is determined according to the detection data that the blood flows to the treatment site, so that the second air storage tank can draw out the gas in the air bag, and when the When the air pressure in the air bag is within the second preset air pressure range, the second valve is controlled to be closed, so that the second air storage tank stops extracting the air from the air bag.

In the embodiment of the present invention, the air release module includes an air storage tank and a valve, which are respectively a second air storage tank and a second valve. A second valve is arranged between the second air storage tank and the air bag. When the second valve is opened, the second air storage tank is communicated with the air bag, and when the second valve is closed, the second air storage tank is not communicated with the air bag. The air pressure in the second air storage tank is lower than the air pressure in the air bag. When the air bag needs to be deflated, the gas in the air bag can be quickly drawn out due to the low air pressure in the second air storage tank. The larger the air pressure difference is, the faster the pumping speed is. Preferably, the air pressure in the second air storage tank is negative pressure, for example, the air pressure in the second air storage tank can be -20kPa. The capacity of the second air storage tank is also larger than the capacity of the airbag. Preferably, the capacity of the second air storage tank is 10 times or more than the capacity of the airbag.

Of course, the deflation module can also be realized by an air pump. However, if the airbag is to be deflated instantaneously, a large air pump is required, and the air pump needs to have a very large flow rate and start very fast. The requirements are very high, and the air pump that meets the above requirements is large in volume, heavy in weight and high in cost. The application of such a treatment device will increase the cost of the treatment device and make the treatment device very inconvenient to carry.

In the embodiment of the present invention, an air storage tank is used to deflate the air bag, and the air pressure of the air storage tank can be reduced to increase the speed of air extraction from the air bag, thereby achieving the purpose of instantaneous deflation. Obviously, the cost of the treatment device can be lower and portable by means of an air storage tank.

In addition, the second valve can be a solenoid valve, and the control module can control the solenoid valve. When the control module controls the opening of the second valve, the air pressure in the second air storage tank is lower than the air pressure in the air bag, so that the second air storage tank can be guaranteed to be pumped from the air bag. Preferably, the air pressure in the second air storage tank It is always lower than the air pressure in the airbag, so that the speed of deflating the airbag by the second air storage tank can be accelerated.

In addition, the second valve can be a normally closed valve, that is, the second valve is in a closed state when it is not energized, and the air circuit of the second valve is connected after the power is turned on, so that the second gas storage tank can draw out the gas in the air bag, so that the air bag is Rapid decompression.

A solenoid valve may be arranged on the second air storage tank, and the pressure of the second air storage tank is relieved through the solenoid valve. The solenoid valve can be a normally open valve, that is, the solenoid valve is in a state of communicating with the atmosphere when it is not energized, and the solenoid valve is closed after being energized. Its function is to make the air pressure in the second air tank equal to 1 when the treatment equipment is not working. atmospheric pressure.

In an embodiment of the present invention, the treatment device further includes: a negative pressure pump and a third air pressure sensor;

the negative pressure pump is connected with the second air storage tank;

the third air pressure sensor is arranged inside the second air storage tank;

Both the negative pressure pump and the third air pressure sensor are connected to the control module;

The third air pressure sensor is used to sense the air pressure in the second air storage tank in real time, and send the sensed air pressure value in the second air storage tank to the control module;

The control module is configured to control the negative pressure pump to pump air to the first air storage tank according to the air pressure value in the first air storage tank sent by the third air pressure sensor, so that the The air pressure in the first air storage tank is within a fourth preset air pressure range.

In the embodiment of the present invention, after the second air storage tank deflates the airbag, the air pressure in the second air storage tank will increase, in order to stabilize the air pressure in the second air storage tank within the fourth preset air pressure range , it is necessary to extract the gas in the second gas storage tank through the negative pressure pump. The control module controls the operation of the negative pressure pump based on the air pressure value in the second air storage tank output by the third air pressure sensor, so that the air pressure in the second air storage tank is maintained within a fourth preset air pressure range. Wherein, the negative pressure pump is an air pump, which draws out the gas in the second gas storage tank under the control of the control module.

The third air pressure sensor may be an air pressure sensor with temperature compensation, which can more accurately sense the air pressure in the second air storage tank. The third air pressure sensor range may be -50kPa. The negative pressure pump can be a DC 24V air pump with a flow rate of 40L/mi and a minimum air pressure of -80kpa.

The control module can control the negative pressure pump to draw out the gas in the second air storage tank when the second air storage tank stops pumping out the gas in the air bag. Of course, it can also control the negative pressure pump to extract the gas in the second air storage tank at any time. As long as the air pressure in the second air storage tank is maintained within the fourth preset air pressure range before the airbag is deflated next time.

A negative pressure pump driving circuit may also be included between the negative pressure pump and the control module. The control signal sent by the control module to the negative pressure pump is amplified by the negative pressure pump driving circuit to drive the negative pressure pump to work reliably.

In an embodiment of the present invention, the treatment device further includes: a first air pressure sensor;

the first air pressure sensor is arranged inside the airbag;

the first air pressure sensor is connected to the control module;

The first air pressure sensor is used to sense the air pressure in the airbag in real time, and send the sensed air pressure value in the airbag to the control module;

The control module is configured to control the inflation module and the deflation module according to the air pressure value in the airbag sent by the first air pressure sensor.

In the embodiment of the present invention, when the air bag is inflated, the air pressure in the air bag needs to be controlled within a reasonable air pressure range, so as to avoid poor treatment effect on the treatment site due to the too small air pressure in the air bag, and also It can avoid damage to the treatment site due to excessive air pressure in the air bag. In order to control the air pressure within a reasonable air pressure range, an air pressure sensor, that is, a first air pressure sensor, is arranged in the air bag. When the air bag is inflated, the air pressure in the air bag can be controlled at 20-35kPa. When inflating the airbag, when the air pressure value output by the first air pressure sensor reaches the air pressure range, the control module controls the inflation module to stop inflating the airbag. In addition, after the inflation is completed, the air pressure in the airbag can be controlled as required, for example, it can be controlled to 20kPa, 25kPa, 30kPa, 35, etc.

When using the deflation module to deflate, the air pressure in the deflated airbag can also be controlled within a smaller air pressure range according to the first air pressure sensor. When deflating the airbag, when the air pressure value output by the first air pressure sensor reaches the air pressure range, the deflation is stopped.

In an embodiment of the present invention, the detection module is configured to detect the blood volume wave of the treatment site in real time, and send the blood volume wave to the control module;

The control module is configured to receive the blood volume wave sent by the detection module in real time, process the blood volume wave in real time, and control the deflation when the rising edge of the blood volume wave is determined. The module draws out the gas in the air bag, and controls the inflation module to inflate the air bag when the first flat segment after the rising edge of the blood volume wave is determined.

In the embodiment of the present invention, the blood flow of the treatment site is determined by the blood volume wave of the treatment site. As shown in FIG. 2 , FIG. 2 is a waveform of a blood volume wave. The blood volume wave is a periodic waveform, and Figure 2 shows the blood volume wave in one cycle. The vertical axis of the blood volume wave is the amount of hemoglobin, and the horizontal axis is the time. As blood flows in and out of the treatment site, the amount of hemoglobin in the treatment site changes, forming the blood volume wave. When the blood volume wave is in the rising edge stage, it means that the blood flows to the treatment site, and the control module controls the deflation module to extract the gas in the airbag. When the blood volume wave is in the first flat segment after the rising edge, it means that the blood flows from the treatment site Backflow, the control module controls the inflation module to inflate the airbag.

Specifically, the rising edge of the blood volume wave can be determined in the following ways:

The detection module is configured to sample the amount of hemoglobin in the treatment site according to a preset sampling rate, and send the sampling value obtained by sampling to the control module;

The control module is configured to receive the sampling value sent by the detection module in real time, and when the ratio of the first sampling value to the last sampling value in the first consecutive first number of sampling values is greater than or equal to the first threshold, determine the rising edge of the blood volume wave.

In this embodiment of the present invention, when the first sampling value and the last sampling value in the first consecutive number of sampling values are greater than or equal to the first threshold, it means that the blood volume wave at the treatment site is on a rising edge. Specifically, after each sampling value is received by the control module, the sampling value is regarded as the last sampling value of the consecutive first number of sampling values, and the ratio of the sampling value to the first sampling value is determined. For example, the first number is 10, 10 consecutive sample values are V0-V9, and the first threshold is 1.3, then, when (V9/V0)≥1.3, it is determined to be a rising edge.

The rising edge of the hemorrhage volume wave can be determined more accurately in the above manner.

Specifically, the flat segment of the blood volume wave can be determined by:

The detection module is configured to sample the amount of hemoglobin in the treatment site according to a preset sampling rate, and send the sampling value obtained by sampling to the control module;

The control module is used to receive the sampling value sent by the detection module in real time, and when any two adjacent sampling values in the second consecutive number of sampling values satisfy the formula 1, determine the value of the blood volume wave. a flat segment;

Wherein, the formula one is:

Wherein, V _n+1 is the n+1 th sampling value in the second consecutive number of sampling values, V _n is the n th sampling value in the second consecutive number of sampling values, and q is the second threshold.

In the embodiment of the present invention, when any two adjacent sampling values in the second consecutive number of sampling values satisfy the above formula 1, it means that the blood volume wave at the treatment site is in a flat segment. When the flat section is the first flat section after the rising edge in one cycle, the inflation module is controlled to inflate the airbag. For example, the second number is 20, and the second threshold is 0.2.

The flat segment in the hemorrhage volume wave can be determined more accurately in the above manner.

In addition, the falling edge in a cycle of a blood volume wave can also be determined by:

When the ratio of the last sample value to the first sample value in the third consecutive number of sample values is less than or equal to the third threshold value, the falling edge of the hemorrhagic volume wave is determined.

Specifically, the third number may be 5, and the third threshold may be 0.8.

Wherein, after it is determined that the blood volume wave reaches the maximum value, the falling edge of the blood volume wave can be determined.

It should be noted that the duration of the rising edge of the blood volume wave is between 100 milliseconds and 200 milliseconds, and the duration of the flat segment is greater than 100 milliseconds. Therefore, the preset sampling rate of the detection module can be set to 400sps, that is, sampling per second. The number of points is 400. The resolution of the detection module can be 12 bits.

As shown in FIG. 3 , an embodiment of the present invention provides a treatment device, and the treatment device includes:

Clip-on volumetric wave sensor 1011, control module 102, first air tank 1031, first valve 1032, second air tank 1041, second valve 1042, air bag 105, first air pressure sensor 301, positive pressure pump 302, Two air pressure sensors 303, a negative pressure pump 304 and a third air pressure sensor 305;

The first air storage tank 1031 is connected to the air bag 105 through a first valve 1032, and the first valve 1032 is connected to the control module 102;

The second air tank 1041 is connected to the air bag 105 through a second valve 1042, and the second valve 1042 is connected to the control module 102;

The first air pressure sensor 301 is arranged inside the airbag, and the first air pressure sensor 301 is connected to the control module 102;

The positive pressure pump 302 is connected to the first air storage tank 1031, the second air pressure sensor 303 is arranged inside the first air storage tank 1031, and both the positive pressure pump 302 and the second air pressure sensor 303 are connected to the control module 102;

The negative pressure pump 304 is connected to the second air storage tank 1041, the third air pressure sensor 305 is arranged inside the second air storage tank 1041, and both the negative pressure pump 304 and the third air pressure sensor 305 are connected to the control module 102;

The clip-on volumetric wave sensor 1011 is connected to the control module 102 .

The working process of a treatment device shown in Figure 3 is as follows:

The clip-type volumetric wave sensor samples the hemoglobin amount of the treatment site in real time according to the preset sampling rate, and sends the sampled value obtained by sampling to the control module;

The first air pressure sensor senses the air pressure in the airbag in real time, and sends the sensed air pressure value in the airbag to the control module;

The second air pressure sensor senses the air pressure in the first air storage tank in real time, and sends the sensed air pressure value in the first air storage tank to the control module;

The third air pressure sensor senses the air pressure in the second air storage tank in real time, and sends the sensed air pressure value in the second air storage tank to the control module;

The control module receives the sampling value sent by the clip-on volume wave sensor in real time, and when the ratio of the first sampling value to the last sampling value in the first consecutive number of sampling values is greater than or equal to the first threshold value, determine the rise of the hemorrhagic volume wave along, when any two adjacent sampling values in the second consecutive number of sampling values satisfy the following formula, a flat segment of the hemorrhagic volume wave is determined;

When the control module determines the first flat segment after the rising edge of the hemorrhagic volume wave, it controls the first valve to open, so that the first air storage tank is inflated to the air bag. When the air pressure value in the air bag sent by the first air pressure sensor is within When the air pressure is within the first preset air pressure range, the first valve is controlled to be closed, so that the first air storage tank stops inflating the air bag;

When the control module determines the rising edge of the hemorrhagic volume wave, it controls the second valve to open, so that the second air storage tank can draw out the gas in the air bag. When the air pressure value in the air bag sent by the first air pressure sensor is at the second preset air pressure When it is within the range, control the second valve to close, so that the second gas storage tank stops drawing out the air bag to extract gas;

The control module controls the positive pressure pump to inflate the first air tank according to the air pressure value in the first air tank sent by the second air pressure sensor, so that the air pressure in the first air tank is within the third preset air pressure range ;

The control module controls the negative pressure pump to pump air to the first air storage tank according to the air pressure value in the first air storage tank sent by the third air pressure sensor, so that the air pressure in the first air storage tank is within the fourth preset air pressure range Inside.

In the embodiment of the present invention, the airbag may be composed of a plurality of sub-airbags, and each of the sub-airbags is communicated with each other. For example: the balloon can be divided into left and right parts, and the two parts can treat the left and right feet at the same time, or treat the left and right hands at the same time. As shown in FIG. 4 , which shows the treatment device treating the foot, the clip-on volume wave sensor 1011 and the balloon 105 of the treatment device are shown in FIG. 4 .

In the embodiment of the present invention, the treatment device inflates and deflates the airbag according to the blood flow at the treatment site, which is synchronized with the blood flow at the treatment site and does not oppose the blood flow at the treatment site. The air bag can be quickly inflated and deflated through the air storage tank, which maximizes the positive effect on blood flow and minimizes the negative impact on the blood flow at the treatment site.

In the embodiment of the present invention, the air pressure of the second air storage tank can be set to negative pressure, so that the air bag can be quickly deflated, and the air pressure in the air bag can be set to 0 or negative pressure, which will not cause any inconvenience to the treatment site. necessary oppression.

In the embodiment of the present invention, the treatment device may further include: a driving constant current circuit for the infrared emission LED of the clip-on volumetric wave sensor, the driving mode of the infrared emission LED is 5mA constant current drive, and the constant current drive is used to reduce the effect of temperature. The driving constant current circuit of the infrared emitting LED is connected with the infrared emitting LED of the clip-type volumetric wave sensor, and is used for driving the infrared emitting LED.

The treatment equipment may also include: an infrared signal receiving and processing circuit, the infrared signal receiving and processing circuit includes two-stage AC amplification, a power frequency 50Hz filter circuit to filter out grid interference, a low-pass filter to filter out frequencies above 80Hz components, while filtering out high-frequency interference, the signal is also smoothed. The infrared signal receiving and processing circuit is connected with the external receiving tube of the clip-type volumetric wave sensor, and the data output by the external receiving tube is processed and sent to the control module.

The treatment device may further include: at least one valve drive circuit, the valve drive circuit is arranged between the control module and the valve, each valve corresponds to a valve drive circuit, and the function of the valve drive circuit is to carry out the current control signal output by the control module. Amplify to push the solenoid valve coil of the valve to work reliably.

The treatment device may further include at least one sensor signal conditioning circuit, each air pressure sensor corresponds to a sensor signal conditioning circuit, and the sensor signal conditioning circuit is arranged between the air pressure sensor and the control module. The function of the sensor signal conditioning circuit is to amplify the output signal of the air pressure sensor. Specifically, a sensor signal conditioning circuit is provided for the first air pressure sensor, the second air pressure sensor and the third air pressure sensor.

The treatment device may further include four A/D conversion circuits, the three A/D conversion circuits are arranged between the sensor signal conditioning circuit and the control module, each sensor signal conditioning circuit corresponds to an A/D conversion circuit, and the three A/D conversion circuits are arranged between the sensor signal conditioning circuit and the control module. The function of the A/D conversion circuit is to convert the analog quantity output by the sensor signal conditioning circuit into a digital quantity. Another A/D conversion circuit is set between the external receiving tube and the control module. The function of this A/D converting circuit is to convert the signal output by the external receiving tube into analog. The sampling rate of the four A/D conversion circuits is Both can be 400sps, and the resolution can be 12-bit.

The embodiment of the present invention also provides a method for detecting the blood flow of a treatment site based on the treatment device in the embodiment of the present invention, which may specifically include the following steps:

The detection module samples the amount of hemoglobin in the treatment site according to the preset sampling rate, and sends the sampling value obtained by sampling to the control module;

The control module receives the sampling value sent by the detection module in real time;

When the ratio of the first sampling value to the last sampling value in the first number of consecutive sampling values is greater than or equal to the first threshold, the control module determines the rising edge of the hemorrhagic volume wave, and determines the blood flow to the treatment site;

When any two adjacent sampling values in the second consecutive number of sampling values satisfy Equation 1, the control module determines a flat segment of the hemorrhagic volume wave;

Wherein, the formula one is:

Wherein, V _n+1 is the n+1 th sample value in the second consecutive number of sample values, V _n is the n th sample value in the second consecutive number of sample values, and q is the second threshold;

When the determined flat segment is the first flat segment after the rising edge of the blood volume wave, the control module determines that blood flows back from the treatment site.

As shown in FIG. 5 , an embodiment of the present invention provides a method for detecting blood flow at a treatment site, including:

Step 501: Acquire the blood volume wave of the treatment site in real time;

Step 502: Determine the rising edge of the blood volume wave at the treatment site;

Step 503: when the rising edge of the blood volume wave of the treatment site is determined, determine that blood flows to the treatment site;

Step 504: Determine the first flat segment after the rising edge of the blood volume wave;

Step 505: When the first flat segment after the rising edge of the blood volume wave is determined, it is determined that blood flows back from the treatment site.

In an embodiment of the present invention, the real-time acquisition of the blood volume wave of the treatment site includes:

acquiring, in real time, a sampling value obtained by sampling the amount of hemoglobin in the treatment site according to a preset sampling rate;

The determining of the rising edge of the blood volume wave at the treatment site includes:

Determine the ratio of the first sample value to the last sample value in the first consecutive number of sample values;

When the ratio of the first sampling value to the last sampling value in the first number of consecutive sampling values is greater than or equal to the first threshold value, the rising edge of the blood volume wave at the treatment site is determined.

In an embodiment of the present invention, the real-time acquisition of the blood volume wave of the treatment site includes:

acquiring, in real time, a sampling value obtained by sampling the amount of hemoglobin in the treatment site according to a preset sampling rate;

The determining of the first flat segment after the rising edge of the blood volume wave includes:

Determine whether any two adjacent sample values in the second consecutive number of sample values satisfy Equation 1;

Wherein, the formula one is:

Wherein, V _n+1 is the n+1 th sample value in the second consecutive number of sample values, V _n is the n th sample value in the second consecutive number of sample values, and q is the second threshold;

When any two adjacent sampling values in the second consecutive number of sampling values satisfy the formula 1, a flat segment of the blood volume wave is determined.

The embodiment of the present invention provides a treatment device, which at least has the following beneficial effects:

1. In the embodiment of the present invention, the detection module detects the blood flow of the treatment site in real time, and sends the detection data to the control module. The control module determines according to the detection data that when blood flows back from the treatment site to the heart, it controls the inflation module to inflate the airbag. , the airbag squeezes the treatment part to promote the blood backflow in the treatment part. When the control module determines that the blood flows to the treatment part according to the detection data, it controls the deflation module to extract the gas in the airbag to prevent the airbag from squeezing the treatment part and avoid the airbag. Obstruct blood flow. In the embodiment of the present invention, the airbag acts on the treatment site based on the blood flow condition of the treatment site to promote the blood circulation of the treatment site, so that better treatment effect can be obtained.

2. In the embodiment of the present invention, a first valve is provided between the first air storage tank and the air bag. When the first valve is opened, the first air storage tank is communicated with the air bag, and when the first valve is closed, the first air storage tank is closed. The air tank is not in communication with the bladder. The air pressure in the first air storage tank is greater than the air pressure in the air bag. When the air bag needs to be inflated, the air bag can be quickly inflated due to the high air pressure in the first air storage tank. The faster the inflation speed is, the faster the airbag can be inflated by adjusting the air pressure in the first air storage tank.

3. In the embodiment of the present invention, a second valve is provided between the second air storage tank and the air bag. When the second valve is opened, the second air storage tank is communicated with the air bag, and when the second valve is closed, the second air storage tank is closed. The air tank is not in communication with the bladder. The air pressure in the second air storage tank is lower than the air pressure in the air bag. When the air bag needs to be deflated, the gas in the air bag can be quickly drawn out due to the low air pressure in the second air storage tank. The larger the air pressure difference is, the faster the pumping speed is, and the air bag can be quickly deflated by adjusting the air pressure in the second air storage tank.

It can be understood that the structures illustrated in the embodiments of the present invention do not constitute a specific limitation on the treatment device. In other embodiments of the present invention, the treatment device may include more or fewer components than shown, or combine some components, or separate some components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

It should be noted that not all steps and modules in the above-mentioned processes and system structure diagrams are necessary, and some steps or modules may be omitted according to actual needs. The execution order of each step is not fixed and can be adjusted as required. The system structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or may be implemented by multiple physical entities. Some components in separate devices are implemented together.

In the above embodiments, the hardware unit may be implemented mechanically or electrically. For example, a hardware unit may include permanent dedicated circuits or logic (eg, dedicated processors, FPGAs or ASICs) to perform corresponding operations. The hardware unit may also include programmable logic or circuits (such as a general-purpose processor or other programmable processors), which may be temporarily set by software to complete corresponding operations. The specific implementation (mechanical, or dedicated permanent circuit, or temporarily provided circuit) can be determined based on cost and time considerations.

The present invention is shown and described in detail above through the accompanying drawings and preferred embodiments. However, the present invention is not limited to these disclosed embodiments. Those skilled in the art can know that the above-mentioned different embodiments can be combined. More embodiments of the present invention can be obtained by the code review method in the present invention, and these embodiments are also within the protection scope of the present invention.

Claims (10)

1. therapeutic equipment, is characterized in that, comprises: detection module, control module, inflation module, deflation module and air bag; Wherein, the detection module, the inflation module and the deflation module are all connected with the control module, and the inflation module and the deflation module are all connected with the air bag, wherein the air bag acts on the treatment part; The detection module is used to detect the blood flow condition of the treatment site in real time, and send the detected detection data to the control module in real time; The control module is configured to receive the detection data sent by the detection module in real time, and process the detection data sent by the detection module in real time. When the site is backflowing, the inflation module is controlled to inflate the airbag, and when it is determined according to the detection data that blood flows to the treatment site, the deflation module is controlled to extract the gas in the airbag. 2. The treatment device of claim 1, wherein The inflatable module includes: a first air tank and a first valve; the first air storage tank is connected with the air bag through the first valve; the first valve is connected to the control module; The air pressure in the first air storage tank is greater than the air pressure in the air bag; The control module is configured to control the first valve to open when it is determined according to the detection data that blood flows back from the treatment site, so that the first air storage tank is inflated to the air bag, and when the When the air pressure in the airbag is within a first preset air pressure range, the first valve is controlled to be closed, so that the first air storage tank stops inflating the airbag. 3. The treatment device of claim 1, wherein The degassing module includes: a second air storage tank and a second valve; the second air storage tank is connected with the air bag through the second valve; the second valve is connected to the control module; The air pressure in the second air storage tank is less than the air pressure in the air bag; The control module is configured to control the second valve to open when it is determined according to the detection data that the blood flows to the treatment site, so that the second air storage tank can draw out the gas in the air bag, and when the When the air pressure in the air bag is within a second preset air pressure range, the second valve is controlled to be closed, so that the second air storage tank stops drawing out the air from the air bag. 4. The therapeutic device of claim 1, wherein Further comprising: a first air pressure sensor; the first air pressure sensor is arranged inside the airbag; the first air pressure sensor is connected to the control module; The first air pressure sensor is used to sense the air pressure in the airbag in real time, and send the sensed air pressure value in the airbag to the control module; The control module is configured to control the inflation module and the deflation module according to the air pressure value in the airbag sent by the first air pressure sensor. 5. The treatment device of claim 2, wherein Further comprising: a positive pressure pump and a second air pressure sensor; the positive pressure pump is connected to the first air storage tank; the second air pressure sensor is arranged inside the first air storage tank; Both the positive pressure pump and the second air pressure sensor are connected to the control module; The second air pressure sensor is used to sense the air pressure in the first air storage tank in real time, and send the sensed air pressure value in the first air storage tank to the control module; The control module is configured to control the positive pressure pump to inflate the first air storage tank according to the air pressure value in the first air storage tank sent by the second air pressure sensor, so as to make the first air storage tank inflated. The air pressure in an air storage tank is within a third preset air pressure range. 6. The therapeutic device of claim 3, wherein Further comprising: a negative pressure pump and a third air pressure sensor; the negative pressure pump is connected with the second air storage tank; the third air pressure sensor is arranged inside the second air storage tank; Both the negative pressure pump and the third air pressure sensor are connected to the control module; The third air pressure sensor is used to sense the air pressure in the second air storage tank in real time, and send the sensed air pressure value in the second air storage tank to the control module; The control module is configured to control the negative pressure pump to pump air to the first air storage tank according to the air pressure value in the first air storage tank sent by the third air pressure sensor, so that the The air pressure in the first air storage tank is within a fourth preset air pressure range. 7. The treatment device of claim 1, wherein the detection module, configured to detect the blood volume wave of the treatment site in real time, and send the blood volume wave to the control module; The control module is configured to receive the blood volume wave sent by the detection module in real time, process the blood volume wave in real time, and control the deflation when the rising edge of the blood volume wave is determined. The module draws out the gas in the air bag, and controls the inflation module to inflate the air bag when the first flat segment after the rising edge of the blood volume wave is determined. 8. The therapeutic device of claim 7, wherein The detection module is configured to sample the amount of hemoglobin in the treatment site according to a preset sampling rate, and send the sampling value obtained by sampling to the control module; The control module is configured to receive the sampling value sent by the detection module in real time, and when the ratio of the first sampling value to the last sampling value in the first consecutive first number of sampling values is greater than or equal to the first threshold, determine the rising edge of the blood volume wave; and / or, The detection module is configured to sample the amount of hemoglobin in the treatment site according to a preset sampling rate, and send the sampling value obtained by sampling to the control module; The control module is used to receive the sampling value sent by the detection module in real time, and when any two adjacent sampling values in the second consecutive number of sampling values satisfy the formula 1, determine the value of the blood volume wave. a flat segment; Wherein, the formula one is:

Wherein, V _n+1 is the n+1 th sampling value in the second consecutive number of sampling values, V _n is the n th sampling value in the second consecutive number of sampling values, and q is the second threshold. 9. A method for detecting blood flow at a treatment site, comprising: Obtain the blood volume wave of the treatment site in real time; determining the rising edge of the blood volume wave at the treatment site; When the rising edge of the blood volume wave at the treatment site is determined, determining that the blood flows to the treatment site; determining the first flat segment after the rising edge of the blood volume wave; When the first flat segment after the rising edge of the blood volume wave is determined, it is determined that blood is flowing back from the treatment site. 10. The method according to claim 9, characterized in that, The real-time acquisition of the blood volume wave of the treatment site includes: acquiring, in real time, a sampling value obtained by sampling the amount of hemoglobin in the treatment site according to a preset sampling rate; The determining of the rising edge of the blood volume wave at the treatment site includes: Determine the ratio of the first sample value to the last sample value in the first consecutive number of sample values; When the ratio of the first sampling value to the last sampling value in the first number of consecutive sampling values is greater than or equal to the first threshold, determining the rising edge of the blood volume wave at the treatment site; and / or, The real-time acquisition of the blood volume wave of the treatment site includes: acquiring, in real time, a sampling value obtained by sampling the amount of hemoglobin in the treatment site according to a preset sampling rate; The determining of the first flat segment after the rising edge of the blood volume wave includes: Determine whether any two adjacent sample values in the second consecutive number of sample values satisfy Equation 1; Wherein, the formula one is:

Wherein, V _n+1 is the n+1 th sample value in the second consecutive number of sample values, V _n is the n th sample value in the second consecutive number of sample values, and q is the second threshold; When any two adjacent sampling values in the second consecutive number of sampling values satisfy the formula 1, a flat segment of the blood volume wave is determined.

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