CN117179843A

CN117179843A - Automatic pressurization intelligent hemostasis device based on self-adaptation hemostasis pressure

Info

Publication number: CN117179843A
Application number: CN202311334741.9A
Authority: CN
Inventors: 黄之文; 刘世民; 朱坚民; 刘宝林; 周潘宇
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2023-10-16
Filing date: 2023-10-16
Publication date: 2023-12-08

Abstract

The invention relates to an automatic pressurization intelligent hemostasis device based on self-adaptive hemostasis pressure, which comprises a display and main control unit, a force applying and unloading unit, a sensor and power supply unit, a wearing unit, a base and a top cover; the device contains the upper and lower limb hemostasis buttons, a wounded or medical staff can execute the operation by pressing the hemostasis position buttons, and simultaneously, the automatic pressurization and the pressure relief are carried out according to scientific hemostasis pressure standards, thereby meeting the high-precision and optimal hemostasis pressure hemostasis operation, and having a timing alarm function without manual supervision and management. Compared with the prior art, the invention realizes the real-time display of the hemostatic pressure and the far-end pulse strength by collecting and processing the information of the pressure sensor and the pulse sensor, ensures the simplicity and portability, and helps the wounded or the medical staff to more correctly and effectively implement the hemostatic emergency treatment.

Description

Automatic pressurization intelligent hemostasis device based on self-adaptation hemostasis pressure

Technical Field

The invention relates to the technical field of medical instruments, in particular to an automatic pressurization intelligent hemostasis device based on self-adaptive hemostasis pressure.

Background

Blood loss is a main cause of mortality rate caused by (war) wounds, and the hemostatic device can be effectively and timely used for treating (war) wounded patients, so that the hemostatic device is a key emergency measure for reducing mortality rate.

At present, along with increasing importance of people on hemostasis emergency measures, portable tourniquets capable of being operated by one hand are widely applied. Such as: chinese patent CN214966199U discloses an improved spinning tourniquet, wherein one end of the main belt is connected with one end of the connecting belt through a buckle, the other end of the connecting belt is fixedly connected with the fixing buckle, one end of the twisted belt in the main belt is connected with the buckle through a twisted rod, the other end of the twisted belt is fixed in the main belt to be a free end, the twisted belt is tightened to exert pressure on the limb by rotating the twisted rod when the pressure is applied, and the twisted rod is kept in a hemostatic state by passing through the fixing belt.

This tourniquet has excellent portability and simplicity, but has many problems.

Firstly, can produce the hindrance to the blood circulation of limbs because of tourniquet exerts pressure to limbs, when long-time blood does not circulate, can produce muscle tissue necrosis because of long-time ischemia to wound position, can lead to amputation when serious, secondly because the accumulation of toxic metabolite is gone into blood and is caused shock or renal failure, endanger life. But the hemostatic time is too short and the hemostatic effect is not achieved, thereby missing the optimal hemostatic time. The tourniquet can time by handwriting the hemostatic time, so that the automatic hemostatic time and the alarm function cannot be realized, and the accuracy of the hemostatic time cannot be ensured.

Second, when excessive pressure is applied during hemostasis, paralysis of the limb tissue is easily induced, and necrosis may be caused when severe. And the hemostatic pressure is too small to achieve the hemostatic purpose. The tourniquet drives the stranding belt to apply pressure through the rotation of the stranding rod, and pressure visualization and scientific hemostasis pressure are not available, so that accurate pressure application during pressure application cannot be guaranteed.

Thirdly, when pressure is manually applied, the operation is complicated, basic tourniquet operation knowledge is needed, so that the tourniquet is not suitable for the masses, and the accuracy of each time of pressure application by manual operation cannot be guaranteed.

Fourth, judge this hemostasis whether effective through looking for the intensity of pulse wave signal in hemostasis process, it is very important to hemostasis correctly and effectively.

Chinese patent CN211796707U discloses an intelligent tourniquet, and the mounting frame lateral wall fixedly connected with motor drives the gear through the processor control motor to drive the inner clamping belt that contains the gear, thereby realize hemostatic purpose, its device inside contains pressure sensor and infrared blood flow sensor, can real-time supervision patient hemostasis position receives pressure and the condition of blood circulation. But the hemostatic pressure cannot be adaptively set according to the physical condition of the patient, and has no hemostatic timing and alarm functions.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an automatic pressurizing intelligent hemostatic device based on the self-adaptive hemostatic pressure, which can automatically complete pressurizing and pressure releasing operations while ensuring hemostatic reliability, so that the hemostatic operation is very simple and easy, a pulse wave sensor acquires pulse information of a patient so as to measure the blood pressure value at the moment, and then the optimal pressure value required by the hemostasis of limbs of the patient is calculated. The patient only needs to press the button at the hemostatic position, and the hemostatic device automatically performs hemostatic operation according to the calculated optimal pressure value of the patient at the moment.

The aim of the invention can be achieved by the following technical scheme:

the invention provides an automatic pressurization intelligent hemostasis device based on self-adaptive hemostasis pressure, which comprises a display and main control unit, a force applying and unloading unit, a sensor and power supply unit, a wearing unit, a base and a top cover;

the top cover is arranged above the base;

the display and main control unit comprises an LCD display module, a main control circuit board, a power button, an alarm module and a power module, wherein the main control circuit board is used for controlling and receiving sensor signals, executing calculation and logic operation, the main control circuit board consists of a plurality of integrated circuits, and comprises a Central Processing Unit (CPU), a memory (RAM and ROM), the CPU is one of an x86 architecture, an ARM architecture and a RISC-V architecture processor, when the received hemostatic pressure value is larger than the optimal hemostatic pressure value, the alarm module sends an alarm to remind and pressurize, the LCD display module 12 is used for displaying hemostatic pressure, hemostatic time and pulse wave signal intensity in real time, and an electric wire of the power module passes through a power charging opening arranged on a top cover to realize a charging function.

The main control circuit board is used for controlling and receiving the sensor signals, executing calculation and logic operation, and the LCD display module is used for displaying the hemostasis pressure, hemostasis time and pulse wave signal intensity in real time;

the force applying and unloading unit is used for controlling tightness of the wearing unit so as to increase hemostatic pressure or reduce hemostatic pressure, and comprises an input shaft, an intermediate shaft, an output shaft, a bearing and a motor, wherein the input shaft, the intermediate shaft and the output shaft are sequentially in transmission connection, the bearings are respectively arranged at two ends of the input shaft, the intermediate shaft and the output shaft, and the motor is in transmission connection with the input shaft;

the sensor and the power supply unit are used for acquiring pressure and pulse wave signals born by the wearing unit and realizing power supply of the active device, the sensor and the power supply unit comprise a power supply module, a pulse sensor, a pressure sensor, a blood pressure measurement button, an upper limb hemostasis button and a lower limb hemostasis button, the sensor and the power supply unit are arranged in the base, the pulse sensor and the pressure sensor are all in communication connection with the main control circuit board, and the blood pressure measurement button, the upper limb hemostasis button and the lower limb hemostasis button are arranged on the top cover;

the wearing unit is used for fixing the hemostatic limb part and preventing from shifting in the hemostatic process, the wearing unit comprises a binding belt, the binding belt is connected with an output shaft, and the output shaft is used for adjusting tightness of the binding belt.

Further, be equipped with first order worm on the input shaft, the one end of jackshaft is equipped with first order worm wheel, and the other end is equipped with the second order worm, is equipped with the second order worm wheel on the output shaft, and first order worm wheel cooperatees through line contact characteristic with first order worm, and the second order worm wheel cooperatees through line contact characteristic with the second order worm, carries out the transmission of power and adjusts the elasticity of bandage.

Further, the two ends of the first-stage worm wheel, the first-stage worm, the second-stage worm wheel and the second-stage worm in the force applying and unloading unit are in interference fit with bearing positioning holes arranged on the base through bearings.

Furthermore, the bearing is limited to move along the axial direction through a bearing baffle plate arranged on the outer side of the bearing and shaft shoulders arranged on the input shaft, the intermediate shaft and the output shaft.

Further, the wearing unit further comprises an adhesive hook integrated magic tape, a binding belt connector and an inserting rod, the binding belt and the adhesive hook integrated magic tape are sewn and fixed through edges, the binding belt passes through the binding belt connector by bypassing limbs, the binding belt connector is stuck and fixed through the reverse adhesive hook integrated magic tape, the inserting rod is sleeved with the binding belt connector, and the inserting rod is fixedly connected with the base.

Further, one end of the binding belt penetrates through a binding belt interface arranged on the binding belt connector, and the other end of the binding belt penetrates through a stranded rope opening arranged at the bottom of the base, and is further fixed in a worm gear groove arranged on the output shaft, and is fixed through screws.

Further, the base comprises a motor base, a rope opening, a motor U-shaped groove, a bearing opening, a pressure sensor opening and a pulse sensor opening. The motor U-shaped groove and the motor base are matched to limit the axial and radial movement of the motor, so that the motor position is kept stable when the motor rotates at a high speed.

Further, the pulse sensor penetrates out of a pulse sensor opening arranged on the side face of the lower cavity of the base and is attached to the inner side of the pulse sensor binding band.

Further, the pressure sensor module penetrates out of a pressure sensor opening arranged in the direction of the lower cavity of the base and is attached to the inner side of the binding belt.

Furthermore, the input shaft, the intermediate shaft and the output shaft are fixed in the base through bearings, bearing retainer rings and bearing baffle plates, the relative positions of the input shaft, the intermediate shaft, the output shaft and the bearings are fixed through the bearing retainer rings, and the positions of the bearings, the input shaft, the intermediate shaft and the output shaft on the base are fixed through the bearing baffle plates.

The specific application method of the automatic pressurization intelligent hemostatic device based on the self-adaptive hemostatic pressure comprises the following steps:

the four limbs of wounded are surrounded by the bandage, then the tail end of the bandage is pulled out from the bandage connector, the stretching band body is tensioned to the position that three fingers cannot be buckled in the band body gap, and the part of the hook-sticking integrated magic tape passing through the interface and the part of the hook-sticking integrated magic tape not passing through the interface band body are attached to realize preliminary tightening, and the pulse sensor is fixed at the tail end of the hemostatic position through the pulse sensor bandage, in particular to the upper arm brachial artery, the wrist radial artery or the thigh artery. When a power button arranged on the top cover is pressed, the device is automatically started, and the LCD display module displays the 'select hemostatic position or measure blood pressure' to prompt the operation of a patient. When a blood pressure measurement button arranged on the top cover is pressed, the main control circuit board receives and processes pulse wave data and calculates Blood Pressure (BP), so that the system can automatically determine the optimal hemostatic pressure value of the patient at the moment, such as an arm: (bp+30) mmHg, thigh: (BP+80) mmHg, the next compression will be performed according to the calculated optimal hemostatic pressure value. When a lower limb hemostasis button and an upper limb hemostasis button arranged on the top cover are pressed down, a pressure sensor on the inner side of the wearing unit detects the pressure when the primary tightening is carried out, a pulse sensor detects the pulse wave intensity information, and the contents are displayed on the LCD display module in real time.

When the patient presses the lower limb hemostasis button and the upper limb hemostasis button, the main control circuit board controls the motor to rotate so as to drive the input shaft, the middle shaft and the output shaft to rotate, and then the binding belt is tightened for hemostasis. The main control circuit board receives pressure information fed back by the pressure sensor, when the applied pressure reaches the optimal hemostatic pressure calculated by the specified, the motor stops driving, and a patient can observe pulse strength signals to judge whether the hemostasis reaches the standard or not, so that the pressurizing process is completed. Because the worm gear and the worm have self-locking performance, the worm gear and the worm cannot be reversed when the hemostatic operation is kept. When the pressurization is finished, the system starts an automatic timing function and displays the automatic timing function on an LCD display screen of the LCD display module, and when the pressure maintaining is finished, an automatic alarm prompt is set, and at the moment, the main control circuit board controls the motor to reversely rotate for pressure relief, so that the pressure relief operation is finished.

On one hand, the structure part of the hemostatic device adopts the worm and gear to realize the self-locking effect in the hemostatic process and prevent abrupt pressure relief when hemostatic pressure is maintained; and the main control unit controls the stepping motor to drive the worm gear and the worm rod to tighten the telescopic belt for automatic hemostasis operation, so that non-professional medical staff can also accurately perform hemostasis.

On the other hand, the blood pressure value of the patient at the moment is acquired through the pulse wave sensor, the optimal hemostatic pressure value at the moment is calculated, and the medical staff and the patient can conveniently and accurately perform hemostasis by combining the designed four-limb hemostatic buttons. Can prevent limb injury caused by excessive hemostasis pressure and optimal time for missing hemostasis caused by insufficient hemostasis.

Pressure information displayed by the LEDs and pulse wave information acquired in the hemostatic process are displayed immediately, so that medical staff or patients can conveniently observe whether the hemostasis reaches the standard or not.

Finally, the device can display hemostatic timing and alarm functions to facilitate viewing of hemostatic time by medical personnel and patients. Can lead the patient to automatically stop bleeding according to the physical condition at the moment without professional hemostasis operation so as to achieve better tourniquet use effect.

Compared with the prior art, the invention has the following advantages:

(1) The stepping motor is arranged in the groove in the motor boss in the base, the appearance of the groove is consistent with that of the stepping motor, and the groove in the motor boss and the U-shaped groove of the worm adopt a coaxiality design. The control module controls the stepping motor to drive the worm so as to drive the turbine, so that the tourniquet is tightened to provide hemostatic pressure. Because the worm and gear has self-locking effect, the hemostatic pressure can be maintained, and when hemostasis is completed, the control module commands the motor to realize reversal, so that pressure relief can be completed. The compression and pressure relief operation is automatically completed while the hemostatic reliability is ensured, so that the hemostasis is very simple and easy to operate.

(2) The pulse wave sensor of the invention collects the pulse information of the patient so as to measure the blood pressure value at the moment, and then calculates the optimal pressure value required by the hemostasis of the limbs of the patient. The patient only needs to press the button at the hemostatic position, and the hemostatic device automatically performs hemostatic operation according to the calculated optimal pressure value of the patient at the moment. Calculating hemostatic pressure information can prevent limb injury caused by excessive hemostatic pressure and optimal time for missing hemostasis caused by insufficient hemostatic pressure.

(3) The display unit, the alarm unit and the main control unit are used for acquiring pressure information and pulse wave signals in the hemostatic process through the pressure sensor and the pulse wave sensor and sending the pressure information and the pulse wave signals to the control unit, the control unit controls the LCD display module to display hemostatic pressure values of the control unit, and when pressurization is completed and hemostatic operation is completed, the alarm is controlled to remind a patient. Pressure information displayed through the LCD display module and pulse wave information acquired in the hemostatic process, medical staff or patients can conveniently observe whether the hemostasis reaches the standard or not.

Drawings

Fig. 1 is a schematic diagram of an automatic pressurized intelligent hemostatic device based on adaptive hemostatic pressure.

Fig. 2 is a schematic diagram of the display and master control unit, the sensor and the power supply unit.

Fig. 3 is a schematic view of the force applying and releasing unit and the wearing unit.

Fig. 4 is a schematic view of a base.

Fig. 5 is a partial schematic view of the top cover.

Reference numerals: 1-pulse sensor strap; 2-pulse sensor; 3-top cover; 4-a base; a 5-strap connector; 6-binding bands; 7-a main control circuit board; 8-an alarm module; 9-blood pressure measurement button; 10-lower limb hemostasis button; 11-upper limb hemostasis button; a 12-LCD display module; 13-a power key; 14-a pressure sensor; 15-a motor base; 16-an electric motor; 17-inserting a rod; 18-an output shaft; 19-a bearing; 20-an intermediate shaft; 21-an input shaft; 50-bearing positioning holes; 51-bearing baffles; 52-rope opening; 53-motor U-shaped groove; 54-pressure sensor opening; 55-pulse sensor opening; 56-a power charging opening; 57-a power module; 58-a base aperture; 59-strap interface; 60-turbine grooves.

Detailed Description

The invention will now be described in detail with reference to the drawings and specific examples. Features such as a part model, a material name, a connection structure, a control method, an algorithm and the like which are not explicitly described in the technical scheme are all regarded as common technical features disclosed in the prior art.

The embodiment provides an automatic pressurization intelligent hemostasis device based on self-adaptive hemostasis pressure, which comprises a display and main control unit, a force applying and unloading unit, a sensor and power supply unit, a wearing unit, a base 4 and a top cover 3 as shown in fig. 1 and 2.

The top cover 3 is arranged above the base 4, and as shown in fig. 4 and 5, the base 4 comprises a motor base 15, a rope opening 52, a motor U-shaped groove 53, a pressure sensor opening 54 and a pulse sensor opening 55. The top cover 3 is connected with the base 4 through the base hole 58 and the screw provided on the base hole 58. The motor U-shaped groove and the motor base are matched to limit the axial and radial movement of the motor, so that the motor position is kept stable when the motor rotates at a high speed.

As shown in fig. 1 and 2, the display and main control unit includes an LCD display module 12, a main control circuit board 7, a power key 13, an alarm module 8, and a power module 57, where the main control circuit board 7 is used to control and receive sensor signals, perform computation and logic operations, the main control circuit board 7 is composed of a plurality of integrated circuits, including a Central Processing Unit (CPU), a memory (RAM and ROM), and when the received hemostatic pressure value is greater than the optimal hemostatic pressure value, the alarm module 8 sends an alarm to remind to apply pressure, and the LCD display module 12 is used to display hemostatic pressure, hemostatic time and pulse wave signal intensity in real time, and the electric wire of the power module 57 passes through a power charging opening 56 provided on the top cover 3 to realize a charging function.

As shown in fig. 3, the force applying and unloading unit is used for controlling tightness of the wearing unit so as to increase or decrease hemostatic pressure, and comprises an input shaft 21, an intermediate shaft 20, an output shaft 18, a bearing 19, a bearing fixing hole 50, a bearing baffle 51 and a motor 16, wherein the motor 16 is a stepper motor; the input shaft 21, the intermediate shaft 20 and the output shaft 18 are sequentially connected in a transmission way, bearings are respectively arranged at two end parts of the input shaft 21, the intermediate shaft 20 and the output shaft 18, and a motor is connected with the input shaft 21 in a transmission way; the input shaft 21, the intermediate shaft 20 and the output shaft 18 are fixed in the base 4 through the bearing 19, a bearing retainer ring and a bearing baffle plate 51 which are arranged on the bearing 19, the relative positions of the input shaft 21, the intermediate shaft 20, the output shaft 18 and the bearing 19 are fixed through the bearing retainer ring, and the positions of the bearing 19, the input shaft 21, the intermediate shaft 20 and the output shaft 18 on the base 4 are fixed through the bearing baffle plate 51; the bearing shield 51 is used to protect the bearings at both ends of the bearing 19.

In the force applying and unloading unit, a first-stage worm is arranged on an input shaft 21, a first-stage worm wheel is arranged at one end of an intermediate shaft 20, a second-stage worm is arranged at the other end of the intermediate shaft, and a second-stage worm wheel is arranged on an output shaft 18; the first-stage worm wheel is matched with the first-stage worm through a line contact characteristic, and the second-stage worm wheel is matched with the second-stage worm through a line contact characteristic to transmit force and tighten the hemostatic device; the two ends of the first-stage worm wheel, the first-stage worm, the second-stage worm wheel and the second-stage worm in the force applying and unloading unit are in interference fit with the bearing positioning holes 50 through bearings 19, and the bearings 19 are limited to move along the axial direction by adopting bearing baffles and shaft shoulders arranged on the input shaft 21, the intermediate shaft 20 and the output shaft 18.

As shown in fig. 2, the sensor and power supply unit is used for acquiring pressure and pulse wave signals born by the wearing unit and realizing power supply of the active device, and the sensor and power supply unit comprises a power supply module 57, a pulse sensor 2, a pressure sensor 14, a blood pressure measurement button 9, an upper limb hemostasis button 11 and a lower limb hemostasis button 10; the sensor and the power supply unit are arranged in the base 4, the pulse sensor 2 and the pressure sensor 14 are both in communication connection with the main control circuit board 7, and the blood pressure measuring button 9, the upper limb hemostasis button 11 and the lower limb hemostasis button 10 are arranged on the top cover 3; the pulse sensor 2, the pressure sensor 14 and the power supply module 57 are all connected with the main control circuit board 7.

As shown in fig. 3, the wearing unit is used for fixing the hemostatic limb part and preventing from shifting in the hemostatic process, the wearing unit comprises a binding belt 6, a hook-and-loop integrated magic tape, a binding belt connector 5 and an inserting rod 17, the binding belt 6 is connected with an output shaft 18, and the output shaft 18 is used for adjusting tightness of the binding belt 6.

One end of the binding belt 6 passes through a binding belt interface 59 arranged on the binding belt connector 5, and the other end passes through a stranded rope opening 52 arranged at the bottom of the base 4, and is further fixed in a worm gear groove 60 arranged on the output shaft 18, and is fixed through screws. The binding band 6 and the hook-and-loop integrated magic tape are sewn and fixed through edges, and when in operation, the binding band passes through the binding band connector 5 around limbs and is stuck and fixed through the reverse hook-and-loop integrated magic tape.

The pressure sensor module 14 and the pulse sensor module 2 are arranged in the lower cavity in the base 4, the pressure sensor module 14 penetrates out from the pressure sensor opening 54 in the direction of the lower cavity of the base 4 and is attached to the inner side of the binding band 6, and the pulse sensor 2 penetrates out from the pulse sensor opening 55 in the side surface of the lower cavity of the base 4 and is attached to the inner side of the pulse sensor binding band 1.

the four limbs of the wounded are surrounded by the binding belt 6, then the tail end of the binding belt 6 is pulled out from the binding belt connector 5, the stretching belt body is tensioned until three fingers cannot be buckled in the belt body gap, the part of the hook-and-loop-sticking integrated magic tape passing through the interface and the part of the hook-and-loop-sticking integrated magic tape not passing through the interface belt body can be attached to realize preliminary tightening, and the pulse sensor 2 is fixed at the tail end of the hemostatic part, in particular to the upper arm brachial artery, the wrist radial artery or the thigh artery through the pulse sensor binding belt 1. When the power button 13 provided on the top cover 3 is pressed, the device is automatically turned on, and the LCD display module 12 displays "select hemostatic site or measure blood pressure" to prompt the patient to operate. When the blood pressure measuring button 9 arranged on the top cover 3 is pressed, the main control circuit board 7 receives pulse wave information transmitted by the pulse sensor 2 and calculates blood pressure, so that the optimal hemostatic pressure value of the patient is automatically determined, and the next pressurization can be performed according to the calculated optimal hemostatic pressure value. When the lower limb hemostasis button 10 and the upper limb hemostasis button 11 arranged on the top cover 3 are pressed down, the pressure sensor 14 on the inner side of the wearing unit detects the pressure when the primary tightening is carried out, the pulse sensor 2 detects the pulse wave intensity information, and the LCD display module 12 displays the contents in real time.

When the patient presses the lower limb hemostasis button 10 and the upper limb hemostasis button 11, the main control circuit board 7 controls the motor 16 to rotate so as to drive the input shaft 21, the intermediate shaft 20 and the output shaft 18 to rotate, and then the binding belt 6 is tightened for hemostasis. The main control circuit board 7 receives the pressure information fed back by the pressure sensor 14, when the applied pressure reaches the optimal hemostatic pressure calculated by the specified calculation, the motor 16 stops driving, and the patient can observe the pulse strength signal to judge whether the hemostasis reaches the standard or not, so that the pressurizing process is completed. Because the worm gear and the worm have self-locking performance, the worm gear and the worm cannot be reversed when the hemostatic operation is kept. When the pressurization is finished, the system starts an automatic timing function and displays the automatic timing function on an LCD display screen of the LCD display module 12, and when the pressure maintaining is finished, an automatic alarm prompt is set, and at the moment, the main control circuit board 7 controls the motor 16 to reversely rotate for pressure relief, so that the pressure relief operation is finished.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.

Claims

1. An automatic pressurizing intelligent hemostatic device based on self-adaptive hemostatic pressure is characterized by comprising a display and main control unit, a force applying and unloading unit, a sensor and power supply unit, a wearing unit, a base (4) and a top cover (3);

the sensor and the power supply unit are arranged in the base (4), the top cover (3) is arranged above the base (4), and the sensor and the power supply unit are used for acquiring pressure and pulse wave signals born by the wearing unit and realizing power supply of the active device;

the display and main control unit comprises an LCD display module (12) and a main control circuit board (7), wherein the main control circuit board (7) is used for controlling and receiving signals of the sensor and the power supply unit and outputting pressure regulation decision signals, and the LCD display module (12) is used for displaying hemostatic pressure, hemostatic time and pulse wave signal intensity in real time;

the force applying and unloading unit comprises an input shaft (21), an intermediate shaft (20), an output shaft (18) and a motor (16), wherein the input shaft (21), the intermediate shaft (20) and the output shaft (18) are sequentially connected in a transmission manner, and the motor (16) is connected with the input shaft (21) in a transmission manner;

the wearing unit is used for fixing a hemostatic limb part and comprises a binding belt (6), the binding belt (6) is connected with an output shaft (18), and the output shaft (18) is based on an instruction signal output by a main control circuit board (7) to realize self-adaptive adjustment of tightness of the binding belt (6).

2. An automatic compression intelligent hemostatic device based on self-adaptive hemostatic pressure according to claim 1, wherein a first-stage worm is arranged on the input shaft (21), a first-stage worm wheel is arranged at one end of the intermediate shaft (20), a second-stage worm is arranged at the other end of the intermediate shaft, a second-stage worm wheel is arranged on the output shaft (18), the first-stage worm wheel is matched with the first-stage worm through a line contact feature, and the second-stage worm wheel is matched with the second-stage worm through a line contact feature to transmit force and adjust tightness of the binding band (6).

3. An automatic pressurizing intelligent hemostasis device based on self-adaptive hemostasis pressure according to claim 2, characterized in that the force applying and unloading unit further comprises bearings (19), the bearings (19) are respectively arranged at two ends of the input shaft (21), the intermediate shaft (20) and the output shaft (18), and two ends of a first-stage worm wheel, a first-stage worm, a second-stage worm wheel and a second-stage worm in the force applying and unloading unit are in interference fit with bearing positioning holes (50) arranged on the base (4) through the bearings (19).

4. An automatic compression intelligent hemostatic device based on self-adaptive hemostatic pressure according to claim 3, wherein the axial movement of the bearing (19) is limited by a bearing baffle plate arranged outside the bearing (19) and shoulders arranged on the input shaft (21), the intermediate shaft (20) and the output shaft (18).

5. An automatic compression intelligent hemostatic device based on self-adaptive hemostatic pressure according to claim 3, wherein the input shaft (21), intermediate shaft (20), output shaft (18) are fixed in the base (4) through the bearing (19), bearing retainer ring and bearing baffle plate arranged on the bearing (19).

6. The automatic pressurizing intelligent hemostatic device based on the self-adaptive hemostatic pressure according to claim 1, wherein the wearing unit further comprises a hook-and-loop integrated magic tape, a strap connector (5) and an inserting rod (17), the strap (6) and the hook-and-loop integrated magic tape are fixed through edge sewing, the strap (6) passes through the strap connector (5) by bypassing limbs, the strap connector (5) is fixed through reverse hook-and-loop integrated magic tape sticking, the strap connector (5) is sleeved on the inserting rod (17), and the inserting rod (17) is fixedly connected with the base (4).

7. An automatic compression intelligent hemostatic device based on self-adaptive hemostatic pressure according to claim 1, wherein one end of the binding band (6) passes through a binding band interface (59) arranged on the binding band connector (5), and the other end passes through a stranded rope opening (52) arranged at the bottom of the base (4), and is further fixed in a worm gear groove (60) arranged on the output shaft (18) through a screw.

8. An automatic compression intelligent hemostasis device based on self-adaptive hemostasis pressure according to claim 1, characterized in that the base (4) includes a motor base (15), a strand opening (52), a motor U-shaped groove (53), a pressure sensor opening (54), a pulse sensor opening (55);

the sensor and power supply unit comprises a power supply module (57), a pulse sensor (2), a pressure sensor (14), a blood pressure measuring button (9), an upper limb hemostasis button (11) and a lower limb hemostasis button (10), wherein the pulse sensor (2) and the pressure sensor (14) are all in communication connection with the main control circuit board (7), and the blood pressure measuring button (9), the upper limb hemostasis button (11) and the lower limb hemostasis button (10) are arranged on the top cover (3).

9. An automatic compression intelligent hemostatic device based on self-adaptive hemostatic pressure according to claim 8, wherein the pulse sensor (2) is penetrated out from a pulse sensor opening (55) arranged on the side surface of the lower cavity of the base (4) and is attached to the inner side of the pulse sensor bandage (1).

10. An automatic compression intelligent hemostatic device based on self-adaptive hemostatic pressure according to claim 8, wherein the pressure sensor module (14) is penetrated out from a pressure sensor opening (54) arranged in the direction of a lower cavity of the base (4) and is attached to the inner side of the bandage (6).