Rapid wound hemostasis device

Abstract

The invention relates to the technical field of hemostasis devices, in particular to a rapid wound hemostasis device which comprises a binding belt, the binding belt is used for binding limbs of a person, an inflatable cavity and a first pressure sensor are arranged in the binding belt, and the first pressure sensor is installed in the inflatable cavity. The pressure monitoring device comprises an inflatable cavity used for monitoring pressure data in the inflatable cavity and a pressure adjusting assembly, the pressure adjusting assembly adjusts the pressure of gas in the inflatable cavity by inflating the interior of the inflatable cavity and exhausting the gas in the inflatable cavity, and hemostasis of a wound is achieved through an inflatable binding belt of the pressure adjusting assembly. And the bundling pressure can be adjusted through the first pressure sensor, the main control device and the pressure adjusting device, meanwhile, the bundling time can be monitored, and the effects of unbundling and re-bundling of the limbs are automatically achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of hemostatic devices, and more particularly to a wound rapid hemostasis device. Background Art

[0002] The commonly used existing wound hemostatic device is a tourniquet. When a large wound appears on a person's limb, causing arterial bleeding, it is necessary to promptly use a tourniquet to tie the limb to compress the artery of the limb, preventing blood from continuously flowing out of the artery, thereby achieving the purpose of hemostasis. There are many precautions when using a tourniquet. For example, the size of the tying force. If the tying force is too small, it cannot achieve complete hemostasis. If the tying force is too large, it will cause tissue damage to the human body. At the same time, after the tourniquet stops bleeding for a period of time, it needs to be untied for a few minutes and then tied again to avoid ischemic injury and death of cells. Therefore, generally, the tying time needs to be recorded when using a tourniquet for hemostasis. As can be seen from the above, it is very difficult to grasp the tying force when using the existing tourniquet for hemostasis, and at the same time, it is necessary to always remember the tying hemostasis time during the use process, which is inconvenient to use. Based on the above situation, it is necessary to design a wound rapid hemostasis device to solve the above problems. Summary of the Invention

[0003] The present invention provides a wound rapid hemostasis device, in which an inflatable restraint band is used to achieve hemostasis of the wound, and through a first pressure sensor, a main control device and a pressure regulating device, the regulation of the tying pressure can be achieved, and at the same time, the tying time can be monitored, and the effect of automatically releasing and re-tying the limb can be realized.

[0004] The technical problems solved by the present invention are realized by the following technical solutions:

[0005] The present invention provides a wound rapid hemostasis device, including;

[0006] A restraint band, which is used to tie a person's limb and has an inflatable chamber inside;

[0007] A first pressure sensor, which is installed inside the inflatable chamber and is used to monitor the pressure data inside the inflatable chamber;

[0008] A pressure regulating component, which realizes the regulation of the gas pressure inside the inflatable chamber by inflating the inside of the inflatable chamber and discharging the gas inside the inflatable chamber;

[0009] Master control device; the input end of the master control device is connected to the output end of the first pressure sensor for receiving the pressure data inside the inflatable chamber monitored by the first pressure sensor, and the output end of the master control device is used to issue a control signal for controlling the pressure regulating component to act and realizing the regulation of the pressure inside the inflatable chamber.

[0010] Preferably, the master control device performs a hemostasis action by alternately controlling the pressure inside the inflatable chamber to switch between a first pressure value and a second pressure value.

[0011] Preferably, the first pressure value corresponds to the state where the artery inside the human limb is completely compressed by the restraint band when the pressure regulating component inflates the inside of the inflatable chamber, and the second pressure value is less than the first pressure value.

[0012] Preferably, the first pressure value is between the pressure value where the restraint band does not compress the artery at all and the first pressure value.

[0013] Preferably, the master control device also has a clock function, and the master control device adjusts the hemostasis mode by controlling the maintenance time of the pressure inside the inflatable chamber at the first pressure value and the maintenance time of the pressure inside the inflatable chamber at the second pressure value.

[0014] Preferably, the master control device includes a housing, a control main board inside the housing, a rechargeable power supply, and a touch display screen on the surface of the housing.

[0015] Preferably, the pressure regulating component includes an air pump for supplying gas to the inside of the inflatable chamber and having a pipeline installed at its output end, and a pressure relief valve for discharging the gas inside the inflatable chamber, and the output end of the pipeline is communicated with the inside of the inflatable chamber.

[0016] Preferably, a second pressure sensor is also installed on the pipeline.

[0017] Preferably, the surface of the restraint band is provided with Velcro, one end of the restraint band is provided with a buckle, and the other end of the restraint band is adhered and fixed through the buckle using Velcro to realize the bundling of the human limb.

[0018] Preferably, an alarm device is further included, and the alarm device operates under the control of the master control device.

[0019] The beneficial effects of the present invention are: by providing a restraint band, a first pressure sensor, a pressure regulating component, and a master control device, the pressure regulation inside the restraint band can be realized, and the bundling and hemostasis of the human limb can be realized.

[0020] By setting the ligation pressure for hemostasis at the first pressure value that completely compresses the artery inside the human limb by the ligature, the effect of hemostasis can be achieved while avoiding excessive ligation pressure.

[0021] By alternately controlling the ligation pressure between the first pressure value and the second pressure value by the main control device, automatic adjustment during the ligation process can be realized, avoiding the situation of ischemia injury and necrosis of other human cells.

[0022] By controlling the duration of maintaining the pressure inside the inflatable chamber at the first pressure value and the duration of maintaining the pressure inside the inflatable chamber at the second pressure value by the main control device, doctors can adjust the hemostasis mode according to the patient's condition. Brief Description of the Drawings

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the first perspective provided by the present invention;

[0025] Figure 2 It is a schematic structural diagram of the second perspective provided by the present invention;

[0026] Figure 3 It is the first cross-sectional view provided by the present invention;

[0027] Figure 4 It is the second cross-sectional view provided by the present invention;

[0028] Figure 5 It is a schematic circuit principle structure diagram provided by the present invention;

[0029] Figure 6 It is a coordinate system diagram of the pressure monitored by the second sensor and time provided by the present invention.

[0030] In the figure, 1. Ligature; 101. Inflatable chamber; 102. Buckle; 103. Drum; 104. Hairy surface; 105. Hook surface; 2. Main control device; 201. Outer shell; 202. Control main board; 203. Rechargeable power supply; 3. Air pump; 301. Pipeline; 302. Second pressure sensor; 303. Pressure relief valve; 304. First pressure sensor; 4. Alarm device; 5. Touch display screen. Detailed Embodiments

[0031] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below with reference to specific illustrations.

[0032] Existing hemostatic devices are rubber bands (pressure cuffs in clinics) or cloth bands (such as the rotary pressure tourniquets on the market). They achieve the compression of arteries by tying around the limbs to achieve the hemostatic effect. Since the tying method requires controlling the tying force to avoid damage to the body's limb tissues, while also being able to achieve the hemostatic effect, and it is also necessary to loosen the tourniquet at intervals to avoid ischemic damage or necrosis of the tissue cells at the tied part. Therefore, when the existing tourniquets are used to stop bleeding in the human body by tying, different people will have different tying forces and tying duration intervals according to their own experience, and after tying continuously for a certain period of time, it is necessary to tie again, and the operation is relatively cumbersome. Based on this, the present invention provides a rapid wound hemostatic device to solve the above problems.

[0033] A rapid wound hemostatic device provided by the present invention includes a restraint band 1, a first pressure sensor 304, a pressure adjustment component, and a main control device 2. Among them, the restraint band 1 is an inflatable structure, and the restraint band 1 has an inflatable chamber 101 inside. When the restraint band 1 is tied around a human limb, the tying force on the human limb is adjusted by inflating the inflatable chamber 101 inside the restraint band 1. The first pressure sensor 304, as a monitor of the air pressure in the inflatable chamber 101, is arranged inside the inflatable chamber 101 to monitor the pressure data inside the inflatable chamber 101 in real time. The pressure adjustment component is an actuator for regulating the pressure inside the inflatable chamber 101. It mainly increases the pressure inside the inflatable chamber 101 by inflating the inside of the inflatable chamber 101 and releases the gas inside the inflatable chamber 101 to reduce the pressure inside the inflatable chamber 101, thereby realizing the adjustment of the pressure inside the inflatable chamber 101. The main control device 2 is an adjuster for the pressure inside the inflatable chamber 101. It mainly receives the data from the first pressure sensor 304 and judges the received data, thereby controlling the pressure adjustment component to adjust the pressure inside the inflatable chamber 101.

[0034] As can be seen from the above, by inflating the inflatable chamber 101 inside the restraint band 1, the tying force of the restraint band 1 on the human limb can be controlled. When the tying force is sufficient to make the artery in a completely compressed state (the artery is compressed to a blocked state and blood transmission is completely interrupted), the hemostatic effect is achieved.

[0035] Further, since it is necessary to relieve the complete compression state of the artery after the binding band 1 is tied for a certain period of time to avoid tissue ischemic injury or necrosis, the main control device 2 switches the pressure inside the inflatable chamber 101 between a first pressure value and a second pressure value by alternately controlling to perform a hemostasis action. That is, the first pressure value should correspond to the state where the human limb artery is exactly completely compressed, and the second pressure value should be less than the first pressure value. At the second pressure value, the artery is not in a completely compressed state at this time (it may be compressed, but there is also a small amount of blood transmission, or it may not be compressed and is completely in a normal blood delivery state).

[0036] To enable those skilled in the art to know how the main control device 2 of the present invention precisely controls the tying pressure, when starting the pressure regulating component to uniformly inflate the inside of the inflatable chamber 101, refer to Figure 6 , which is a coordinate diagram of the relationship between the pressure monitored by the first pressure sensor 304 and time. Before the time period t1 detected by the first pressure sensor 304, it indicates that during the slow inflation process of the binding band 1, the tying force on the limb is small. At this time, the arterial pulsation of the human body does not affect the air pressure inside the inflatable chamber 101, and the air pressure inside the inflatable chamber 101 is only affected by the inflation of the air pump 3. Therefore, it is roughly in a smooth linear change state before the time period t1. At the time period t1, the first pressure sensor 304 inside the inflatable chamber 101 can just detect the influence of the artery on the pressure inside the inflatable chamber 101, and the corresponding value is B (the value at point B corresponds to the critical point where the binding band 1 just compresses the artery or just does not compress it). During the time period t1 - t2, as the pressure inside the inflatable chamber 101 inside the binding band 1 gradually increases, the tying force of the binding band 1 also increases. At this time, there is a certain compressive force on the artery, and the blood delivery fluctuation of the artery will also affect the pressure inside the inflatable chamber 101. At this time, the relationship change diagram of the pressure inside the inflatable chamber 101 monitored during the time period t1 - t2 shows that although the pressure gradually increases with time, the growth rate will fluctuate (changing suddenly fast and slow), and the corresponding change is no longer a smooth linear change. After the time period t2, since the pressure inside the inflatable chamber 101 continues to increase and the artery has been compressed into a completely closed state, at this time, the artery is closed, and the pressure inside the inflatable chamber 101 is only affected by the air supply of the pressure regulating component. Therefore, the linear relationship returns to a smooth linear change state at this time. The main control device 2 can control the tying pressure in an appropriate state by analyzing the data received by the first sensor. When the main control device 2 controls the tying pressure of the binding band 1 on the human limb, the corresponding pressure inside the corresponding inflatable chamber 101 at this time is Figure 6The pressure corresponding to point A herein, the pressure value corresponding to the inflatable chamber 101, is such that the first pressure sensor 304 just fails to sense the blood pulsation in the artery, and the artery is in a completely compressed state to achieve the hemostatic effect. When the tying time reaches the set time, for example, it has been tied for half an hour, to avoid damage or necrosis of other tissues due to ischemia, that is, to avoid the artery being in a completely compressed state for a long time, resulting in damage or necrosis of other tissues due to ischemia. It is necessary to relieve the artery from the completely compressed state. At this time, the pressure inside the inflatable chamber 101 needs to be maintained at a state lower than the first pressure value. This value is represented by the second pressure value C, and C is less than A. First, C can be greater than 0 and less than A. Second, C can be greater than B and less than A, that is, the tying pressure on the limb is in a semi-compressed state of the artery (compressing the artery, but the artery can still transport blood). Preferably, the second pressure value is set to be greater than B and less than A, which can prevent the restraint band 1 from having a certain binding force and stabilizing on the limb.

[0037] Furthermore, the main control device 2 also has a clock function, which is realized by installing a clock chip on the control main board 202 below. This is a mature existing technology, mainly assisting in realizing the timing function and will not be elaborated in detail here. Since the main control device 2 has a clock function, the adjustment of the hemostasis mode can be achieved by adjusting the maintenance time of the pressure inside the inflatable chamber 101 at the first pressure value and the maintenance time of the pressure inside the inflatable chamber 101 at the second pressure value. Under normal hemostasis conditions, the pressure inside the inflatable chamber 101 should be maintained for an interval of half an hour to one hour, and then the inflatable chamber 101 is maintained at the second pressure value for 3 - 5 minutes, and the two states are continuously switched during the hemostasis process. And the present invention can select the mode according to the patient's own situation. For example, if the blood loss of the limb is less, at this time, it is preferred to consider avoiding the long tying time when the artery is completely compressed, which may cause damage or necrosis due to long-term ischemia of cells. The pressure inside the inflatable chamber 101 can be controlled to be maintained at the first pressure value for a shorter time, such as 20 minutes, appropriately reducing the time when the artery is completely compressed, while the second pressure value inside the inflatable chamber 101 is maintained for a longer time, such as 5 - 8 minutes, appropriately increasing the blood supply time of the artery to cells. On the contrary, if the patient has bled a large amount before using this hemostasis device, it is necessary to relatively increase the maintenance time of the pressure inside the inflatable chamber 101 at the first pressure value, and correspondingly reduce the maintenance time of the pressure inside the inflatable chamber 101 at the second pressure value to reduce the blood outflow from the human body.

[0038] Specifically, the main control device 2 includes a housing 201, a control main board 202 inside the housing 201, a rechargeable power supply 203, and a touch display screen 5 on the surface of the housing 201. The control main board 202 analyzes the data of the first pressure sensor 304 and controls the pressure regulating component in combination with the clock function. The touch display screen 5 is used to set execution parameters, such as setting the time parameter for maintaining the first pressure value, the time parameter for maintaining the second pressure value, or directly adjusting the first pressure value parameter and the second pressure value parameter, and displaying various parameters during the hemostasis operation. For example, when the main control device 2 analyzes the data monitored by the first pressure sensor 304 and controls the pressure inside the inflatable chamber 101 to be maintained at the first pressure value to achieve hemostasis, and the body's shaking causes the first pressure value to be unstable and fluctuate, and it is visually observed that there is still a small amount of blood slowly overflowing from the wound, then the first pressure value can be manually increased slightly to achieve the effect of complete hemostasis. Or when the main control device 2 controls the inside of the inflatable chamber 101 to be maintained at the second pressure value parameter and it is observed that the blood flow overflow speed of the wound is too fast, the second pressure value can also be appropriately increased. If it is observed that the tissue of the limb turns blue or other ischemic symptoms worsen, the second pressure value can also be appropriately decreased to supply blood to the limb tissue.

[0039] Specifically, the pressure regulating component includes an air pump 3 for supplying gas to the inside of the inflatable chamber 101 and having a pipeline 301 installed at its output end, and a pressure relief valve 303 for discharging the gas inside the inflatable chamber 101. The output end of the pipeline 301 is communicated with the inside of the inflatable chamber 101. The main control device 2 controls the air pump 3 to work to inflate the inside of the inflatable chamber 101, and controls the action of the pressure relief valve 303 to exhaust the gas inside the inflatable chamber 101, thereby performing pressure regulation on the inside of the inflatable chamber 101. The air pump 3 of the pressure regulating component can be installed inside the housing of the main control device 2, and the pressure relief valve 303 is preferably installed on the pipeline 301.

[0040] A second pressure sensor 302 is further provided on the specific pipeline 301. The second pressure sensor 302 is used to monitor the pressure in the pipeline 301. The output end of the second pressure sensor 302 is connected to the input end of the control main board 202 for transmitting the pressure signal inside the pipeline 301 to the control main board 202. An alarm device is further provided at the output end of the control main board 202. The alarm device can be arranged on the outer shell 201 of the main control device 2. When the pipeline 301 becomes blocked due to folding, the main control device 2 combines the data of the first pressure sensor 304 and the second pressure sensor 302 to judge that the current pipeline 301 has poor air ventilation, and controls the alarm device to give an alarm for prompt. The alarm device can specifically be an audible and visual alarm. The setting of the two sensors can also avoid the problem that the wound rapid hemostasis device cannot be used when one sensor is damaged.

[0041] Specifically, a magic tape is provided on the surface of the restraint band 1. A buckle 102 is provided at one end of the restraint band 1. The other end of the restraint band 1 is fixed by passing through the buckle 102 and then using the magic tape to realize the bundling of the limb. The magic tape includes a hook surface 105 and a plush surface 104. A rotating cylinder 103 is further provided on the buckle 102 to facilitate pulling the end passing through the buckle 102. Of course, the fixing method of the restraint band 1 is not limited to this implementation method. For example, the existing methods such as snap buttons, hooks, and adhesives can also achieve fixation, which will not be further elaborated here.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid wound hemostasis device, characterized in that, Comprising; A restraint band (1) for binding a human limb and having an inflatable chamber (101) therein; A first pressure sensor (304) installed inside the inflatable chamber (101) for monitoring the pressure data inside the inflatable chamber (101); A pressure regulating assembly that adjusts the gas pressure inside the inflatable chamber (101) by inflating the inside of the inflatable chamber (101) and discharging the gas inside the inflatable chamber (101); A main control device (2); the input end of the main control device (2) is connected to the output end of the first pressure sensor (304) for receiving the pressure data inside the inflatable chamber (101) monitored by the first pressure sensor (304), and the output end of the main control device (2) is used to issue a control signal for controlling the pressure regulating assembly to act and adjust the pressure inside the inflatable chamber (101).

2. The rapid wound hemostasis device according to claim 1, wherein, The main control device (2) performs a hemostasis action by alternately controlling the pressure inside the inflatable chamber (101) to switch between a first pressure value and a second pressure value.

3. The rapid hemostasis device for wound according to claim 2, wherein, The first pressure value corresponds to the state where the artery inside the human limb is completely compressed by the restraint band (1) when the pressure regulating assembly inflates the inside of the inflatable chamber (101), and the second pressure value is less than the first pressure value.

4. The rapid wound hemostasis device according to claim 3, characterized in that, The first pressure value is between the pressure value where the restraint band (1) does not compress the artery at all and the first pressure value.

5. The wound rapid hemostasis device according to claim 3, wherein, The main control device (2) also has a clock function, and the main control device (2) adjusts the hemostasis mode by controlling the maintenance time of the pressure inside the inflatable chamber (101) at the first pressure value and the maintenance time of the pressure inside the inflatable chamber (101) at the second pressure value.

6. The rapid hemostasis device for wound according to claim 1, characterized in that, The main control device (2) includes a housing (201), a control main board (202) inside the housing (201), a rechargeable power supply (203), and a touch display screen (5) on the surface of the housing (201).

7. A rapid wound hemostasis device according to claim 1, characterized in that, The pressure regulating assembly includes an air pump (3) for supplying gas to the inside of the inflatable chamber (101) and having a pipeline (301) installed at its output end, and a pressure relief valve (303) for discharging the gas inside the inflatable chamber (101), and the output end of the pipeline (301) is communicated with the inside of the inflatable chamber (101).

8. The wound rapid hemostasis device according to claim 7, characterized in that, A second pressure sensor (302) is also installed on the pipeline (301).

9. The rapid hemostasis device for wounds according to claim 1, wherein The surface of the restraint band (1) is provided with Velcro, one end of the restraint band (1) is provided with a buckle (102), and the other end of the restraint band (1) is adhered and fixed by passing through the buckle (102) and using Velcro to bind the human limb.

10. A rapid wound hemostasis device according to any one of claims 1-9, characterized in that, An alarm device (4) is also included, and the alarm device (4) operates under the control of the main control device (2).

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