Acute bleeding emergency device for interventional catheter room nursing

Abstract

The invention relates to the technical field of medical instruments, in particular to an acute bleeding emergency device for interventional catheter room nursing, which comprises a shell and a binding component, a hemostasis component is arranged in the shell, the bottom of the shell is detachably connected with a Doppler probe, the Doppler probe is in signal connection with a control system, and a pressure detection component is further arranged at the bottom of the shell. The hemostasis assembly comprises a first air bag filled with gas, the outer top wall of the first air bag is fixedly connected with the inner top wall of the shell, an expansion layer is arranged at the bottom of the first air bag and has the characteristics of water absorption expansion and expansion cooling, and a plurality of temperature change springs are arranged in the first air bag. A hemostasis mechanism which replaces traditional monitoring signal response with mechanical response is designed, and the subsequent hemostasis condition of a patient is detected, so that the hemostasis compression acting force of the patient is adjusted, rapid and accurate hemostasis operation is achieved, and the comfort of the patient is improved while the hemostasis efficiency and safety are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an acute bleeding emergency device for interventional catheter room nursing. Background Art

[0002] Interventional catheter room nursing is a specialized nursing work carried out around minimally invasive interventional surgeries (such as cardiovascular intervention, tumor embolization, etc.). Its core lies in ensuring the safety of the surgery through real-time monitoring, instrument assistance, and emergency treatment. Since interventional operations often involve steps such as blood vessel puncture and catheter insertion, patients may suddenly experience acute bleeding due to blood vessel injury, use of anticoagulant drugs, or instrument-related complications. Such situations are characterized by high concealment and rapid progression. If not intervened in a timely manner, serious consequences such as shock and organ ischemia may occur. As an emergency hemostasis device specifically designed for the interventional catheter room, the acute bleeding emergency device usually integrates functions such as pressure sensing, rapid response, and local compression, aiming to reduce human operation delays through automated or semi-automated operations and gain critical treatment time for medical staff.

[0003] Existing bleeding emergency devices are usually designed in the form of a tourniquet-like device, consisting of a strap and a hemostasis mechanism. They rely on manual triggering or simple threshold alarms, and there is a significant delay in signal reception, transmission, and finally execution by the hemostasis mechanism. During interventional surgery, a blood loss of 200 ml / min can be life-threatening. In addition, the compression force and range of traditional devices are fixed, making it difficult to adapt to different bleeding scenarios such as blood oozing from the femoral artery puncture site (requiring low-pressure coverage) and jet bleeding from a cardiac perforation (requiring high-intensity focused compression). As a result, in most cases of acute bleeding, medical staff need to make secondary manual adjustments to the device. When a patient has acute bleeding, saving time means safeguarding the patient's life, and time loss will directly increase the risk of rescue failure.

[0004] Therefore, it is necessary to propose an acute bleeding emergency device for interventional catheter room nursing to optimize the deficiencies of the existing technology, achieve a faster, more accurate, and emergency response adapted to different bleeding scenarios, ensure the safety of patients, and improve the nursing efficiency of the interventional catheter room. Summary of the Invention

[0005] To solve the above problems, the present invention provides an acute bleeding emergency device for interventional catheter room nursing. A hemostasis mechanism that can respond quickly is designed according to the characteristics of blood exudation during acute bleeding, and the subsequent hemostasis situation of the patient is detected to adjust the magnitude of the hemostatic compression force on the patient, realizing a fast and accurate hemostasis operation, improving the hemostasis efficiency while increasing the comfort of the patient.

[0006] To achieve the above object, the technical solution of the present invention is as follows: An acute bleeding emergency device for interventional catheterization room care, including a housing and a binding assembly. The binding assembly includes a telescopic adjustment fastener and two straps. One end of each of the two straps is detachably connected to the two inner side walls of the housing, and the ends of the two straps away from the housing are fixed to each other through the telescopic adjustment fastener. A hemostasis component is provided inside the housing. The bottom of the housing is detachably connected with a Doppler probe. The Doppler probe is signal-connected to a control system for detecting the bleeding condition at the patient's wound. The bottom of the housing is also provided with a pressure detection component for detecting the patient's blood pressure condition. The pressure detection component is signal-connected to the control system;

[0007] The hemostasis component includes a first airbag filled with gas. The outer top wall of the first airbag is fixedly connected to the inner top wall of the housing. There is an expansion layer at the bottom of the first airbag. The periphery of the expansion layer is detachably connected to the inner wall of the housing. The expansion layer has the characteristics of absorbing water and expanding and expanding and cooling down. And the expansion layer is filled with hemostatic components;

[0008] A number of temperature-variable springs are provided inside the first airbag. Both ends of the temperature-variable springs are respectively fixedly connected to the inner top wall and the inner bottom wall of the first airbag. When the expansion layer expands, the increase in volume causes the temperature-variable springs to exert an elastic supporting force on the expansion layer. The decrease in temperature causes the temperature-variable springs to change from elastic to rigid.

[0009] The technical principle of the above solution is as follows: The function of firmly binding the housing near the patient's wound is realized through the design of the telescopic adjustment fastener and the two straps, which is convenient for subsequent hemostasis treatment and monitoring operations; Through the characteristics of the expansion layer of absorbing water and expanding and expanding and cooling down, and the design of the filled hemostatic components, when contacting the blood, the expansion layer can quickly absorb water and expand, and at the same time produce a cooling effect, which helps to slow down blood circulation, promote blood coagulation, and the hemostatic components further accelerate the hemostasis process; Through the design that both ends of the temperature-variable spring are respectively fixedly connected to the inner top wall and the inner bottom wall of the first airbag, the supporting force on the expansion layer is adjusted according to the changes in the volume and temperature of the expansion layer. When the temperature rises, the temperature-variable spring changes from elastic to rigid, providing additional support to ensure that the expansion layer maintains a stable shape and pressure during the expansion process; Through the signal connection design of the control system with the Doppler probe and the pressure detection component, the collection and analysis of data are realized, providing comprehensive patient status information for medical staff and assisting in making decisions on hemostasis measures and subsequent treatment plans.

[0010] Adopting the above solution has the following beneficial effects:

[0011] 1. The device utilizes the water absorption and expansion characteristics of the expansion layer. Once acute bleeding occurs at the patient's wound, the flowing blood will be quickly absorbed by the expansion layer, resulting in an increase in the volume of the expansion layer. This process not only directly exerts pressure on the wound to achieve initial compression hemostasis, but also reduces the time delay caused by signal transmission, enabling the hemostasis operation to be carried out more quickly.

[0012] 2. This solution utilizes the expansion and cooling characteristics of the expansion layer. When a patient's wound is bleeding, the expansion of the expansion layer will lower the temperature of the patient's wound. The temperature reduction is accompanied by the contraction of vascular smooth muscles, which causes the diameter of the blood vessels at the patient's wound to shrink, thereby achieving the effect of reducing bleeding flow and alleviating the bleeding trend.

[0013] 3. In this solution, through the synergistic effect of the Doppler probe and the pressure detection component, the control system can monitor the bleeding status and blood pressure of the patient's wound in real time, and by judging the patient's hemostasis situation, on the one hand, control the size of the subsequent hemostasis pressure, and on the other hand, automatically adjust the restraint force after successful hemostasis, thereby reducing the restraint force on the patient and improving comfort.

[0014] Furthermore, the temperature-dependent springs are all hollow structures, and the hollow parts of the temperature-dependent springs are all filled with gallium-indium alloy.

[0015] Beneficial effects: Since the melting point of the gallium-indium alloy is about 15°C, when the device is in operation, the temperature inside the shell gradually decreases as the expansion layer absorbs water and expands and has a cooling effect. When the temperature drops below the melting point of the gallium-indium alloy, the alloy solidifies and expands in volume, causing the temperature-dependent spring to change from an elastic state to a rigid state. The support force of the temperature-dependent spring is automatically adjusted according to changes in ambient temperature, thereby improving the adaptability and response speed of the device, helping to maintain the shape and stability of the expansion layer, and ensuring that it applies continuous and uniform pressure to the patient's wound, thereby improving the hemostatic effect. In addition, the rigidity enhancement process of the temperature-dependent spring is carried out simultaneously with this process, thereby achieving dynamic adjustment of the pressure on the patient's wound, which helps to ensure that the hemostatic effect will neither fail due to too little pressure nor cause secondary damage to the patient due to too much pressure.

[0016] Furthermore, a plurality of temperature-dependent springs are arranged in a circumferential array with the center point of the bottom surface of the first airbag as the center.

[0017] Beneficial effects: The circumferential array arrangement of the temperature-variable springs can ensure that when the expansion layer expands due to blood infiltration, it can evenly distribute pressure on the patient's wound. The evenly distributed pressure helps to achieve a wider range of hemostasis coverage and reduce the risk of poor hemostasis or secondary injury caused by uneven pressure. In addition, the design of the circumferential array arrangement can make the compressive force of the temperature-variable springs apply corresponding compressive force according to the corresponding area of ​​the patient's wound where bleeding occurs, that is, the temperature-variable springs in the corresponding area of ​​the spray-type wound expand quickly and cool down, while for the oozing wound, the blood will spread to multiple points, so that the temperature-variable springs provide decentralized low-pressure hemostasis, thereby adapting to a wider range of bleeding scenarios.

[0018] Furthermore, the bottoms of the two straps are fixedly connected to second airbags, and the second airbags are connected to the first airbags.

[0019] Beneficial effects: When the first airbag contracts under external pressure (such as the thrust when the expansion layer expands), the gas inside it will flow through the connecting pipe to the second airbag, increasing the volume of the second airbag. This change not only enhances the binding force of the strap on the patient's body, thereby improving the compression hemostasis effect of the outer shell and the hemostasis component on the patient's wound; at the same time, due to the enhancement of the binding force of the strap, the blood circulation at the wound will also be correspondingly reduced, which helps to assist in hemostasis by compressing the blood vessels at the distal end of the wound, further improving the hemostasis efficiency.

[0020] Furthermore, a device shell is fixedly welded on one side of the outer shell. A pump air component is fixedly connected inside the device shell. The pump air component is communicated with the first airbag and is signal-connected to the control system.

[0021] Beneficial effects: After initial hemostasis, if the control system determines that the bleeding situation has not been fully controlled, the pump air component can automatically increase the gas volume in the first airbag to enhance the hemostasis effect. On the contrary, if the bleeding has been effectively controlled, the pump air component can reduce the gas volume in the first airbag to avoid unnecessary compression and discomfort to the patient.

[0022] Furthermore, the pressure detection component includes a pressure sensor, and the pressure sensor is fixedly connected to the bottom end of the outer shell.

[0023] Beneficial effects: The pressure sensor can real-time monitor the blood pressure situation at the patient's wound, providing accurate and continuous blood pressure data, which helps medical staff to timely understand the patient's physiological state. Especially in the case of acute bleeding, the real-time monitoring of blood pressure is crucial for evaluating the hemostasis effect and the patient's condition.

[0024] Furthermore, a signal air valve is provided on the side wall of the second airbag on one side, and the signal air valve is signal-connected to the control system.

[0025] Beneficial effects: Automatically adjust the device state after successful hemostasis, control the gas leakage in the second airbag through the signal air valve, weaken the binding force on the patient, and improve comfort.

[0026] Furthermore, image sensors are fixedly connected to both sides of the outer shell, and the image sensors are signal-connected to the control system.

[0027] Beneficial effects: By combining the data of the image sensor and the pressure sensor, the control system can more comprehensively evaluate the patient's hemostasis situation; for example, when the image sensor shows that the bleeding at the wound is significantly reduced and the pressure sensor shows that the blood pressure is gradually stable, it can be more certain that the hemostasis measure is effective.

[0028] Furthermore, an indicator light and a buzzer are fixedly connected to the outer top wall of the outer shell, and both the indicator light and the buzzer are signal-connected to the control system.

[0029] Beneficial effects: When the control system detects that the hemostasis condition of the patient is abnormal or the working state of the device requires special attention, the indicator light will emit a light of a specific color, and at the same time, the buzzer will emit an alarm sound. The instant alarm function can quickly attract the attention of medical staff, ensuring that they can respond in a timely manner and take necessary measures.

[0030] Furthermore, the control system includes an image acquisition module, a blood flow detection module, a blood pressure detection module, and a pulse detection module;

[0031] The image acquisition module is used to capture the connection image of the outer shell and the strap through an image sensor, and determine whether there is a crack in the connection between the strap and the outer shell. When a crack appears at this connection, the image acquisition module sends a stop instruction to the air pumping assembly to stop the operation of pumping air into the first airbag;

[0032] The blood flow detection module is used to emit continuous ultrasonic waves through a Doppler probe and receive the frequency shift signal reflected by red blood cells, calculate the frequency shift amount of red blood cells, then extract the frequency shift spectrum, calculate the average flow velocity, analyze the bleeding state at the current patient's wound by judging the magnitude and duration of the average flow velocity, and correspondingly transmit a driving signal to the air pumping assembly to perform periodic air pumping on the first airbag;

[0033] The blood pressure detection module is used to collect the dynamic pressure signal of the contact surface between the second airbag and the skin through a pressure sensor, output the pressure signal, convert and digitize the pressure signal to obtain pressure data, and transmit the pressure data to the pulse detection module;

[0034] The pulse detection module is used to receive the pressure data transmitted by the blood pressure detection module, emit ultrasonic signals through a Doppler probe, receive the arterial wall vibration signal of the patient, extract the pulse waveform, calculate the pulsatility index, judge the current hemostasis condition of the patient by combining the pulsatility index and the pressure data, and transmit the corresponding driving signal to the signal air valve according to the judgment result.

[0035] Beneficial effects: This design integrates advanced image processing technology, Doppler ultrasound technology, and pressure sensing technology, demonstrating the innovation and advancement of modern medical technology, contributing to the continuous progress and development of medical technology, and providing a more scientific and reliable guarantee for the rehabilitation and prognosis of patients; each module works in coordination to achieve comprehensive monitoring and accurate judgment of the patient's bleeding situation, helping to improve the hemostasis efficiency, reduce the bleeding time and amount of bleeding, and at the same time reduce the risk of secondary injury caused by excessive compression or insufficient compression. And through real-time monitoring and accurate judgment, medical staff can adjust the state and parameters of the emergency device more timely and effectively, thereby reducing the pain and discomfort of the patient, helping to improve the patient's satisfaction and trust in nursing services, and promoting the harmonious development of the doctor-patient relationship.

[0036] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0037] Figure 1 It is a schematic diagram of the overall structure of an embodiment of an acute bleeding emergency device for interventional catheterization room care of the present invention;

[0038] Figure 2 It is a front sectional view of the outer shell in an embodiment of an acute bleeding emergency device for interventional catheterization room care of the present invention;

[0039] Figure 3 For an embodiment of an acute bleeding emergency device for interventional catheterization room care of the present invention Figure 2 The structural sectional view of the temperature-variable spring at position A;

[0040] Figure 4 It is an axonometric view of the bottom arrangement of the device in an embodiment of an acute bleeding emergency device for interventional catheterization room care of the present invention;

[0041] Figure 5 It is a schematic diagram of the operation of the control system of an embodiment of an acute bleeding emergency device for interventional catheterization room care of the present invention.

[0042] Reference numerals in the accompanying drawings of the specification include: 1, outer shell; 2, binding assembly; 201, telescopic adjustment fastener; 202, binding strap; 3, first airbag; 4, expansion layer; 5, temperature-variable spring; 6, second airbag; 7, equipment shell; 8, pressure sensor; 9, signal air valve; 10, image sensor; 11, indicator light; 12, buzzer; 13, Doppler probe. Detailed Embodiments

[0043] The technical solutions of the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The following is a further detailed description through specific embodiments:

[0047] Embodiment 1:

[0048] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 : An acute bleeding emergency device for interventional catheterization room care, including a housing 1 and a binding assembly 2. The binding assembly 2 includes a telescopic adjustment fastener 201 and two straps 202. One end of each of the two straps 202 is detachably connected to both side walls of the housing 1 through a snap structure, and the ends of the two straps 202 away from the housing 1 are fixed to each other through the telescopic adjustment fastener 201. A hemostasis assembly for treating the patient's bleeding condition by compression hemostasis method is provided inside the housing 1. The lengths of the two straps 202 are adjusted according to the actual wound position and the patient's body type. During the nursing process, the medical staff align the housing 1 with the wound of the patient at risk of acute bleeding, and tie the two straps 202 to the patient's body through the telescopic adjustment fastener 201 to achieve real-time detection of the bleeding condition of the patient's wound. In addition, due to the elastic characteristics design of the telescopic adjustment fastener 201 and the straps 202, during the normal wearing process of the patient, it will not affect the normal activities of the patient, and can avoid the strangulation injury caused to the patient due to too tight binding and the compression injury caused to the wound.

[0049] When acute bleeding occurs at the wound, conventional emergency devices need to detect the bleeding condition through the sensing component, and the time loss caused by signal transmission will directly increase the risk of rescue failure. Therefore, a hemostatic component is designed, which includes a first airbag 3 filled with gas. The outer top wall of the first airbag 3 is adhesively fixed to the inner top wall of the housing 1. A swelling layer 4 is provided at the bottom of the first airbag 3. The periphery of the swelling layer 4 is detachably adhered to the inner wall of the housing 1. The swelling layer 4 has the characteristics of water absorption and swelling and swelling and cooling, and the swelling layer 4 is filled with a hemostatic component. The water absorption and swelling characteristic of the swelling layer 4 is realized by mixing carboxymethyl chitosan and sodium alginate composite hydrogel, and the swelling and cooling characteristic of the swelling layer 4 is realized by paraffin / silica microcapsules embedded in the hydrogel network. Its hemostatic component is chitosan microspheres loaded. When acute bleeding occurs at the patient's wound, since the housing 1 covers the patient's wound at this time, the blood flowing out of the wound will gather under the swelling layer 4 and gradually accumulate. When the blood contacts the swelling layer 4 that absorbs water and swells, the volume of the swelling layer 4 increases. The pressure generated due to the increase in the volume of the swelling layer 4 acts on the bottom of the first airbag 3 and the top of the patient's wound respectively, so as to achieve the effect of pressing on the patient's wound. And because the first airbag 3 has the property of elastic plasticity, the pressure is relatively gentle, playing a role in the initial compression hemostasis at the initial stage of the patient's emergency bleeding.

[0050] In addition, during the swelling process of the swelling layer 4, the temperature inside the housing 1 will decrease as the volume of the swelling layer 4 increases. The decrease in temperature can stimulate the contraction of vascular smooth muscle, resulting in the narrowing of the blood vessel diameter at the patient's wound, thereby reducing the blood flow rate and alleviating the bleeding trend.

[0051] This design uses the physical characteristics during bleeding as the condition for triggering the hemostatic mechanism, reducing the time loss caused by signal transmission, enabling the hemostatic operation to be carried out more quickly, and strengthening the safety protection for patient care.

[0052] Particularly, as a strategy to relieve the acute bleeding trend, the initial compression hemostasis is difficult to completely stop the patient's bleeding trend. Therefore, the following design is carried out:

[0053] First, a number of hollow temperature-variable springs 5 are designed inside the first airbag 3. Both ends of the temperature-variable springs 5 are welded and fixed to the inner top wall and the inner bottom wall of the first airbag 3 respectively. At the initial stage of the patient's emergency bleeding, the pressure exerted on the first airbag 3 by the increase in the volume of the swelling layer 4 will cause the volume of the first airbag 3 to shrink. At this time, the contraction of the number of temperature-variable springs 5 will gradually exert a supporting force to slow down the shrinking trend of the volume of the first airbag 3, manifested as an increase in the rigidity of the first airbag 3, becoming the force-bearing support surface for the swelling layer 4 to exert hemostatic pressure on the patient's wound, so as to improve the effectiveness of the initial compression hemostasis;

[0054] Secondly, the hollow part of the temperature-variable spring 5 is filled with gallium-indium alloy. Since the melting point of gallium-indium alloy is about 15°C, the expansion layer 4 expands and cools down when expanding. As the temperature in the shell 1 gradually decreases, the gallium-indium alloy inside the temperature-variable spring 5 gradually solidifies, expands in volume and forms a rigid network, which is reflected in the enhancement of the rigidity of the temperature-variable spring 5. The rigidity of the first airbag 3 is enhanced, and the pressure converted by the volume expansion of the expansion layer 4 is completely converted into hemostatic pressure directed to the patient's wound. The rigidity enhancement process changes with the change of temperature, so as to achieve the effect of being able to dynamically adjust according to the amount of bleeding in the patient's wound, that is, the patient's hemostatic effect will neither cause secondary damage to the wound due to being too strong, nor affect the hemostatic effect due to being too weak.

[0055] Thirdly, a plurality of temperature-dependent springs 5 ​​are arranged in a circumferential array with the center point of the bottom surface of the first airbag 3 as the center of the circle. Since the expansion layer 4 fits the wound of the patient, when the device acts on a spray-type wound, the blood exuding from the wound will first contact the corresponding area of ​​the expansion layer 4, causing the corresponding area to expand and cool down first, thereby realizing concentrated high-pressure hemostasis. On the contrary, when the device acts on a bleeding wound, the blood exuding from the wound will diffuse at multiple points, causing the expansion layer 4 to expand evenly, thereby realizing decentralized low-pressure hemostasis. The device can dynamically adjust the range of compression according to the range of bleeding from the patient's wound, thereby reducing the operation of secondary adjustment of the hemostasis mechanism by medical staff, reducing the time loss during the hemostasis process, and improving the hemostasis efficiency.

[0056] Embodiment 2:

[0057] As attached Figure 1 and Figure 2 As shown, the difference from Example 1 is that the bottom of the two straps 202 are both adhered and fixed with the second airbag 6, and the second airbag 6 is connected to the first airbag 3 through the trachea. Through the flexibility of the second airbag 6, it can closely fit the patient's body curve, reduce the pressure of the strap on the patient's skin, and improve the patient's comfort during wearing. At the same time, after being inflated, the second airbag 6 can further enhance the fixing effect of the strap 202, ensuring that the shell 1 and the hemostatic mechanism inside it are firmly attached to the wound and will not fall off or shift due to the movement or activity of the patient.

[0058] In particular, the second airbags 6 on both sides are connected to the first airbag 3. When the first airbag 3 is squeezed and contracted, the gas in the first airbag 3 will escape to the second airbags 6 on both sides due to the air pressure generated by the reduction in the volume of the first airbag 3, so that the volume of the second airbag 6 increases, thereby increasing the restraining force of the strap 202. On the one hand, it can enhance the force support for a series of hemostatic movements in the shell 1. On the other hand, the enhancement of the restraining force of the strap 202 means that the blood circulation at the wound is reduced, achieving the effect of assisting hemostasis by compressing the blood vessels distal to the wound, which is beneficial to enhancing the efficiency of hemostasis.

[0059] Example 3:

[0060] As shown in the attached Figure 1 and Figure 4 figures, the difference from Example 2 is that a Doppler probe 13 is detachably connected to the bottom wall of the expansion layer 4 through a snap structure. The Doppler probe 13 is signal-connected to a control system for detecting the bleeding condition at the patient's wound. One side of the outer shell 1 is welded and fixed with an equipment shell 7. A pump gas assembly is fixedly connected in the equipment shell 7 through bolts. The pump gas assembly is signal-connected to the control system, and the pump gas assembly is communicated with the first airbag 3 through an air pipe. The pump gas assembly is preferably a micro air pump. With this design, the Doppler probe 13 emits and receives ultrasonic signals and transmits them to the control system. The control system calculates and analyzes the change in the blood flow velocity at the patient's wound to determine whether the patient is currently in a bleeding state. When it is determined that the patient is still in a bleeding state, the micro air pump is controlled to periodically pump air into the first airbag 3 to increase the volume of the first airbag 3 and enhance the compressive force on the patient's wound. At the same time, the bleeding state of the patient is continuously detected to achieve adjustable compressive force that can be detected. Compared with the design with a fixed compressive force, this design avoids the problem of ineffective hemostasis at the patient's wound due to too small a compressive force. Moreover, through periodic pumping of air, it also avoids the problem of compressive injury to the patient's wound due to continuously increasing compressive force.

[0061] Example 4:

[0062] As shown in the attached Figure 4 figures, the difference from Example 3 is that a signal air valve 9 is provided on the side wall of the second airbag 6 on one side. The signal air valve 9 is signal-connected to the control system. And a pressure sensor 8 is welded and fixed to the bottom of the outer shell 1. The pressure sensor 8 is signal-connected to the control system. The pressure sensor 8 is designed to detect the patient's real-time blood pressure. Since after hemostasis, the patient's blood pressure will remain stable and the heart rate will gradually return to normal, while during bleeding, the patient's blood pressure will continuously drop and the heart rate will gradually increase. Through the detection of blood pressure and combined with the detection of the patient's arterial pulsation by the Doppler probe 13, the control system can judge in real time whether the patient has successfully stopped bleeding. When it is determined that the bleeding at the patient's wound has stopped, the control system transmits a driving signal to the signal air valve 9 to control the gas in the second airbag 6 to leak out. The leakage of the gas in the second airbag 6 drives the gas in the first airbag 3 to leak out, thereby weakening the binding force of the strap 202 on the patient and returning to the normal wearing state, improving the patient's comfort. After hemostasis is completed, the binding force is timely reduced to reduce the probability of pressing and injuring the patient's skin.

[0063] Example 5:

[0064] As shown in the attached Figure 1 and Figure 4As shown, the difference from Embodiment 4 is that fixing plates are welded on both sides of the outer shell 1, and image sensors 10 are fixedly connected to the bottoms of the fixing plates through screws. The image sensors 10 are all signal-connected to the control system. The image sensors 10 are used to collect the connection images of the outer shell 1 and the straps 202 on both sides, and analyze whether the connection is firm through the analysis of the connection images. When it is recognized that there is a crack in the connection between the strap 202 and the outer shell 1, the driving of the micro air pump is stopped in time to avoid secondary injuries caused by the breakage of the strap 202 to the patient.

[0065] An indicator light 11 and a buzzer 12 are fixedly welded to the outer top wall of the outer shell 1. The indicator light 11 and the buzzer 12 are both signal-connected to the control system. When it is detected that acute bleeding occurs in the patient's wound, the indicator light 11 and the buzzer 12 are started simultaneously to prompt the patient and medical staff of acute bleeding in the wound, and remind the medical staff to detect the patient's vital signs for corresponding care.

[0066] Embodiment 6:

[0067] As shown in the appendix Figure 5 The difference from Embodiment 5 is that the control system includes an image acquisition module, a blood flow detection module, a blood pressure detection module, and a pulse detection module.

[0068] The image acquisition module captures the connection images of the outer shell 1 and the strap 202 through the image sensor 10, and processes the images using image recognition and analysis algorithms to determine whether there are cracks or other abnormal conditions in the connection between the strap 202 and the outer shell 1. When there are cracks or abnormal conditions at this connection, the image acquisition module will send a stop command to the air pumping assembly to stop further air pumping operations, thereby avoiding the breakage of the strap due to excessive tension and causing secondary injuries to the patient.

[0069] The blood flow detection module emits continuous ultrasonic waves through the Doppler probe 13 and receives the frequency shift signals reflected by red blood cells to calculate the frequency shift amount, and then extracts the frequency shift spectrum and calculates the average flow velocity. By judging the magnitude and duration of the average flow velocity, if the average flow velocity is detected to be less than 0.5 cm / s continuously for 3 times and lasts for 10 seconds, it is determined as a non-bleeding state. If the average flow velocity is greater than or equal to 0.5 cm / s or there are continuous increases and decreases, it is determined that the current patient's wound is in a bleeding state, and a driving signal is transmitted to the air pumping assembly to perform periodic air pumping on the first airbag 3.

[0070] The blood pressure detection module collects the dynamic pressure signals on the contact surface between the second airbag 6 and the skin through the pressure sensor 8, outputs the pressure signals, converts the pressure signals into digital form to obtain pressure data, and transmits the pressure data to the pulse detection module.

[0071] The pulse detection module receives the pressure data transmitted by the blood pressure detection module, emits ultrasonic signals through the Doppler probe 13, receives the arterial wall vibration signals of the patient, extracts the pulse waveform, calculates the pulsatility index, and judges the current hemostasis situation of the patient by combining the pulsatility index and the pressure data. When the pulsatility index approaches and remains stable at the pulsatility index of the patient in the normal state, and at the same time the pressure data also remains stable, it is judged that the patient's wound has stopped bleeding. At this time, a driving signal is transmitted to the signal air valve 9 to deflate each airbag.

[0072] Obviously, the above embodiments are only examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. An acute bleeding emergency device for interventional catheterization room nursing, comprising a housing (1) and a binding assembly (2). The binding assembly (2) includes a telescopic adjustment fastener (201) and two straps (202). One end of each of the two straps (202) is detachably connected to the inner walls on both sides of the housing (1), and the ends of the two straps (202) far from the housing (1) are fixed to each other through the telescopic adjustment fastener (201). It is characterized in that, The housing (1) is provided with a hemostasis component. The bottom of the housing (1) is detachably connected with a Doppler probe (13). The Doppler probe (13) is signal-connected to a control system for detecting the bleeding condition at the patient's wound. The bottom of the housing (1) is also provided with a pressure detection component for detecting the patient's blood pressure condition. The pressure detection component is signal-connected to the control system; The hemostasis component includes a first airbag (3) filled with gas. The outer top wall of the first airbag (3) is fixedly connected to the inner top wall of the housing (1). The bottom of the first airbag (3) is provided with an expansion layer (4). The periphery of the expansion layer (4) is detachably connected to the inner wall of the housing (1). The expansion layer (4) has the characteristics of water absorption expansion and expansion cooling, and the expansion layer (4) is filled with hemostatic components; A number of temperature-variable springs (5) are arranged inside the first airbag (3). Both ends of each temperature-variable spring (5) are fixedly connected to the inner top wall and the inner bottom wall of the first airbag (3) respectively. When the expansion layer (4) expands, the increase in volume causes the temperature-variable spring (5) to exert an elastic supporting force on the expansion layer (4), and the decrease in temperature causes the temperature-variable spring (5) to transform from elasticity to rigidity.

2. The acute bleeding emergency device for interventional catheterization room care according to claim 1, wherein, Each temperature-variable spring (5) has a hollow structure, and the hollow part of each temperature-variable spring (5) is filled with a gallium-indium alloy.

3. The acute bleeding emergency device for interventional catheterization room care according to claim 2, characterized in that, A number of temperature-variable springs (5) are arranged in a circumferential array with the center point of the bottom surface of the first airbag (3) as the center.

4. The acute bleeding emergency device for interventional catheterization room care according to claim 3, wherein, Both bottoms of two straps (202) are fixedly connected with a second airbag (6), and both second airbags (6) are communicated with the first airbag (3).

5. The acute bleeding emergency device for interventional catheterization room care according to claim 4, characterized in that, One side of the housing (1) is fixedly connected with an equipment housing (7). A gas pumping component is fixedly connected inside the equipment housing (7). The gas pumping component is communicated with the first airbag (3), and the gas pumping component is signal-connected to the control system.

6. The acute bleeding emergency device for interventional catheterization room care according to claim 5, wherein, The pressure detection component includes a pressure sensor (8), and the pressure sensor (8) is fixedly connected to the bottom end of the housing (1).

7. The acute bleeding emergency device for interventional catheterization room care according to claim 6, characterized in that, A signal air valve (9) is arranged on the side wall of one second airbag (6), and the signal air valve (9) is signal-connected to the control system.

8. The acute bleeding emergency device for interventional catheterization room care according to claim 7, characterized in that, Image sensors (10) are fixedly connected to both sides of the housing (1), and the image sensors (10) are signal-connected to the control system.

9. The acute bleeding emergency device for interventional catheterization room care according to claim 8, characterized in that, An indicator light (11) and a buzzer (12) are fixedly connected to the outer top wall of the housing (1), and both the indicator light (11) and the buzzer (12) are signal-connected to the control system.

10. The acute bleeding emergency device for interventional catheterization room care according to claim 9, characterized in that, The control system includes an image acquisition module, a blood flow detection module, a blood pressure detection module, and a pulse detection module; The image acquisition module is used to capture the connection image between the housing (1) and the strap (202) through the image sensor (10) to judge whether there is a crack in the connection between the strap (202) and the housing (1). When a crack appears at this connection, the image acquisition module sends a stop instruction to the gas pumping component to stop the operation of pumping gas into the first airbag (3); The blood flow detection module is used to emit ultrasonic waves through the Doppler probe (13) and receive the frequency shift signal reflected by red blood cells, calculate the red blood cell frequency shift amount, then extract the frequency shift spectrum, calculate the average flow velocity, analyze the bleeding state at the current patient's wound by judging the magnitude and duration of the average flow velocity, and correspondingly transmit a driving signal to the gas pumping component to perform periodic gas pumping on the first airbag (3); The blood pressure detection module is used to collect the dynamic pressure signal of the contact surface between the second airbag (6) and the skin through the pressure sensor (8), output the pressure signal, convert the pressure signal into digital form to obtain pressure data, and transmit the pressure data to the pulse detection module; The pulse detection module is used to receive the pressure data transmitted by the blood pressure detection module, emit ultrasonic signals through the Doppler probe (13), receive the arterial wall vibration signals of the patient, extract the pulse waveform, calculate the pulsatility index, judge the current hemostasis situation of the patient by combining the pulsatility index and the pressure data, and transmit the corresponding drive signal to the signal air valve (9) according to the judgment result.

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