Device for achieving brachial artery compression hemostasis

Abstract

The invention provides a device for achieving brachial artery compression hemostasis, and relates to the technical field of medical instruments.The device for achieving brachial artery compression hemostasis comprises a wearing assembly suitable for being bound to the upper arm of the human body and achieving device wearing; the pressure applying unit array assembly is arranged on the wearing assembly and is used for carrying out compression operation on a puncture point area on the upper arm of the human body; the distributed pressure sensing assembly is arranged on the wearing assembly, located on the outer side of the pressure applying unit array assembly and used for sensing contact pressure information of the pressure applying unit array assembly and the puncture point area; and the controller is used for regulating and controlling the compression operation based on the dynamic pressure distribution represented by the contact pressure information so as to maintain effective compression on the puncture point. According to the technical scheme, compression failure caused by slight change of the posture of the upper limbs of the patient can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a device for achieving brachial artery compression and hemostasis. Background Art

[0002] With the development of minimally invasive intervention, minimally invasive interventional therapy for clinical heart and blood vessels has rapidly become an effective diagnostic method and treatment method. The femoral artery, brachial artery and radial artery of the human body are necessary ways for interventional diagnosis and treatment. In related interventional treatments, radial artery puncture has the advantage that patients do not need to lie flat and immobilize after surgery, while femoral artery puncture has less restrictions on the patient's arm movement after surgery. Therefore, these two applications are more common in clinical treatment. However, in some special cases, some patients still need to puncture the brachial artery to achieve the treatment purpose. After the brachial artery puncture is completed, the puncture point should be fully pressed, otherwise adverse conditions such as hematoma, oozing, bleeding, etc. will occur, and in severe cases, pseudoaneurysms will form. Pressing the puncture site generally needs to last for more than 6 hours, so relevant compression hemostatic devices are required for compression treatment.

[0003] In the existing related technologies, considering that the brachial artery is close to the elbow joint, has a large range of motion, and has no bony platform as support, the compression stability is poor, which can easily cause compression failure. Some instruments have adopted an implementation method of restricting the elbow joint, such as the elbow substructure and connecting belt structure set in the instrument disclosed in the prior patent "Brachial Artery Compressor" with publication number CN 215018273 U, and the support member setting in the prior patent "A Brachial Artery Puncture Compression Hemostat for Fixing the Elbow Joint" with publication number CN221205563U.

[0004] In the process of realizing the present invention, the inventors found that in practice, since the fixed posture of the elbow joint is not a physiological posture, most patients find it difficult to persist for 6 hours. This method of restricting the elbow joint requires the patient to pay attention at all times, and it is easy for the patient to relax and change posture, resulting in compression failure, bleeding and other abnormal conditions.

[0005] Therefore, how to provide a brachial artery compression hemostasis device that can reduce the occurrence of such compression failure has become a technical problem that needs to be solved urgently. Summary of the invention

[0006] In order to overcome the problems existing in the related art to at least a certain extent, an embodiment of the present application provides a device for achieving brachial artery compression hemostasis, which adopts a specific device configuration and arrangement to help reduce the occurrence of compression failure mentioned in the background technology.

[0007] Some embodiments of the present application provide a device for achieving brachial artery compression hemostasis, the device comprising: Wearable component, suitable for binding to the upper arm of the human body to realize the wearability of the device; A pressure unit array component is provided on the wearable component and is used to perform a pressure operation on the puncture point area on the upper arm of the human body; A distributed pressure sensing component, disposed on the wearing component and located outside the pressure unit array component, for sensing contact pressure information between the pressure unit array component and the puncture point area; The controller is used to regulate the compression operation based on the dynamic pressure distribution represented by the contact pressure information to maintain effective compression on the puncture point.

[0008] In some possible implementations, regulating the pressing operation based on the pressure distribution represented by the contact pressure information includes: Based on the comparative analysis of the current sensing value information and the historical sensing value information of each sensing point of the distributed pressure sensing component, the target sensing point whose pressure change characteristics meet the pulsation characteristics is determined among the sensing points; Based on the position coordinates of the target sensing point, determining the projection position of the brachial artery on the pressure unit array assembly; Based on the projection position, the pressure state of each unit of the pressure unit array assembly is adjusted.

[0009] In some possible implementations, the pressure unit array assembly and the distributed pressure sensing assembly are relatively fixed in position, and the same two-dimensional coordinate system is used for position description; the process of determining the projection position of the brachial artery on the pressure unit array assembly includes: Analyzing the position coordinates of the characteristic sensing points to determine the maximum and minimum values ​​of the horizontal coordinates; The position corresponding to the strip area defined by the maximum value and the minimum value in the two-dimensional coordinate system is determined as the projection position of the brachial artery on the pressure-applying unit array assembly.

[0010] In some possible implementations, the process of adjusting the pressure state of each unit of the pressure unit array assembly based on the projection position includes: Obtaining the pressure calibration information of each unit of the predetermined pressure unit array assembly; Determining an offset amount of position adjustment according to a brachial artery calibration projection position represented by the pressure calibration information and a position change of the projection position; Based on the offset, an overall translation adjustment of the pressure is performed according to the pressure value distribution represented by the pressure value calibration information, so as to achieve a relatively unchanged compression operation on the brachial artery.

[0011] In some possible implementations, the position change is a change in a lateral coordinate.

[0012] In some possible implementations, in order to achieve the predetermination of the pressure calibration information, the controller is further configured to: After the device is worn, in response to the input of the first trigger instruction, each unit of the pressure unit array assembly is controlled to synchronously apply a basic pressure, and then in response to the input of the second trigger instruction, the initial contact pressure distribution is sensed by the distributed pressure sensing assembly to obtain the pressure calibration information.

[0013] Some possible implementations also include, based on a comparative analysis of the current moment sensing value information of each sensing point of the distributed pressure sensing component and the historical moment sensing value information, determining whether abnormal bleeding has occurred based on the pressure fluctuation characteristics of each sensing point obtained by analysis; when it is determined that abnormal bleeding has occurred, a corresponding alarm prompt message is generated and output.

[0014] In some possible implementations, the determination of whether abnormal bleeding occurs based on the pressure fluctuation characteristics of each sensing point obtained by analysis is specifically that abnormal bleeding occurs when the pressure fluctuation characteristics of multiple sensing points show that the pressure values ​​continue to rise.

[0015] In some possible implementations, the pressure unit array assembly is implemented based on a micro-airbag unit array in which each unit is independently controlled.

[0016] In some possible implementations, the distributed pressure sensing component is implemented based on an arrayed piezoresistive sensor network.

[0017] The device for achieving brachial artery compression hemostasis provided in an embodiment of the present application includes: a wearing component, which is suitable for binding to the upper arm of a human body to achieve the wearing of the device; a pressure unit array component, which is arranged on the wearing component and is used to perform a compression operation on the puncture point area on the upper arm of the human body; a distributed pressure sensing component, which is arranged on the wearing component and is located outside the pressure unit array component, and is used to sense contact pressure information between the pressure unit array component and the puncture point area; a controller, which is used to regulate the compression operation based on the dynamic pressure distribution represented by the contact pressure information, so as to maintain effective compression on the puncture point; In the technical solution of the present application, a pressure unit array component is provided to perform a pressure operation on the puncture point area, and a distributed pressure sensing component is used to sense the contact pressure information between the pressure unit array component and the puncture point area. The pressure operation is adjusted by the dynamic pressure distribution represented by the contact pressure information to achieve the maintenance of effective compression. For example, after the device is normally worn and adjusted, the contact pressure information represents a pressure state that can achieve effective compression. According to the research and analysis of the inventor, in practice, when the user's posture changes slightly, due to the characteristics of the human body structure at the brachial artery, the brachial artery will produce relative movement, which will cause the original pressure state to be unable to maintain effective compression. At the same time, this relative movement will cause a change in pressure distribution, and then the pressure state of the pressure unit array component can be adjusted based on the change in pressure distribution, so as to continue to maintain effective compression. That is, in practice, the application of the device with the above-mentioned configuration and arrangement of the present application can effectively reduce the occurrence of such compression failure caused by slight changes in the patient's posture, which is beneficial to the postoperative care of relevant minimally invasive interventional surgeries in clinical practice.

[0018] Other advantages, objectives and features of the present application will be described in part in the following description, and in part will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the technical solution of the present application or the prior art, and constitute a part of the specification. Among them, the accompanying drawings expressing the embodiments of the present application are used together with the embodiments of the present application to explain the technical solution of the present application, but do not constitute a limitation on the technical solution of the present application.

[0020] Figure 1 This is a schematic diagram illustrating the overall structure of a device for achieving brachial artery compression hemostasis in one embodiment of the present application; Figure 2 for Figure 1 A schematic diagram illustrating a block diagram of the control implementation of the device for achieving brachial artery compression hemostasis in the illustrated embodiment; Figure 3 This is a schematic diagram illustrating the control logic of a device for achieving brachial artery compression hemostasis in one embodiment of the present application.

[0021] In the figure, 10-wearing component; 20-pressure unit array component; 30-distributed pressure sensing component; 40-controller. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other implementation methods obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0023] It should also be noted that, for ease of description, only parts related to the relevant embodiments are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments disclosed in this application can be combined with each other.

[0024] It should be noted that the concepts such as "first" and "second" mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0025] It should be noted that the modifications of "one" and "plurality" mentioned in the present application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0026] As described in the background technology, after the brachial artery puncture is completed, the puncture point should be fully pressed, otherwise adverse conditions such as hematoma, oozing, bleeding, etc. will occur. In severe cases, a pseudoaneurysm will be formed. This process generally takes more than 6 hours, so it is necessary to use relevant compression hemostasis instruments for compression treatment. In the existing related technologies, considering that the brachial artery is close to the elbow joint, has a large range of motion, lacks bony platform support, and has poor compression stability, which can easily cause compression failure, some instruments use a method of limiting the elbow joint, such as the elbow lower structure and connecting belt structure set in the instrument disclosed in the prior patent "Brachial Artery Compressor" with announcement number CN 215018273 U, such as the setting of the support member in the prior patent "A Brachial Artery Puncture Compression Hemostasis Device for Fixing the Elbow Joint" with announcement number CN221205563U.

[0027] In the process of realizing the present invention, the inventors found that in practice, since the fixed posture of the elbow joint is not a physiological posture, most patients find it difficult to persist for 6 hours. This method of restricting the elbow joint requires the patient to pay attention at all times. It is easy for the patient to relax and change the posture slightly, resulting in compression failure, bleeding and other abnormal conditions.

[0028] In view of this, the present application proposes a device for achieving brachial artery compression hemostasis, which adopts a specific device configuration and arrangement to help reduce the occurrence of compression failure mentioned in the background technology.

[0029] like Figure 1 and Figure 2 As shown, in one embodiment, the device for achieving brachial artery compression hemostasis proposed in the present application includes: Wearing component 10, suitable for binding to the upper arm of a human body to realize wearing of the device; like Figure 1 As shown, for example, as a specific implementation, the wearing component can adopt the same fixing plate and winding belt structure as the existing related products, so as to realize the wearing of the device, such as Figure 1 In the embodiment, the upper part of the wearing component 10 is a fixed plate structure, and the lower part is a winding structure. One end of the winding is fixedly connected to one end of the fixed plate, and the other end is connected to the fixed plate through a connecting component ( Figure 1 The left end of the middle fixing plate is shown in the figure) to achieve a detachable connection; It should be noted that the above structural description of the wearing component is only an exemplary description, and the specific implementation method of the wearing component is not limited in this application.

[0030] like Figure 1 and Figure 2 As shown, the device also includes a pressure unit array component 20, which is arranged on the wearing component 10 and is used to perform a compression operation on the puncture point area on the upper arm of the human body, such as Figure 1 As shown, here we continue to take the wearing component of the fixing plate and the winding belt structure as an example, the pressure unit array component 20 is embedded in the structure of the fixing plate of the wearing component; It is easy to understand that the pressure unit array assembly here is an array assembly composed of a plurality of pressure units, each of which can perform independent pressure operation, so that the entire pressure unit array assembly can perform pressure operation on each local area in the surface of the puncture point area after the device is worn; In actual implementation, considering the maturity of the technology, the pressure unit array assembly can be implemented based on a micro airbag unit array in which each unit is independently controlled, and it should be noted that: Figure 1 What is shown in the figure is only a schematic diagram of the structure of the implementation method, and the gas source, distribution pipeline and micro valve in the implementation of the micro airbag unit array are not shown. Those skilled in the art can use the relevant existing technology to implement the actual arrangement of each part of the pressure unit array component based on actual needs; In addition, it should be noted that, considering the development of existing material technology, smart hydrogels can also be used to realize the pressure unit array assembly; smart hydrogels are a type of polymer network material that changes its physical or chemical properties in response to external stimuli. This type of hydrogel can absorb a large amount of water or other biological fluids while maintaining a three-dimensional structure, and can change volume, release loads or change shape under specific conditions. It can be widely used in biomedicine, tissue engineering, drug delivery systems, sensors, soft robots and other fields; specifically in this application, electroactive hydrogels can be used, which can deform or change volume under the action of an electric field. Based on this characteristic, the above-mentioned pressure unit array assembly can be combined with a honeycomb-like restriction frame structure and related control drive circuits. Compared with the micro-airbag unit array implementation, this implementation is more conducive to the integration of the device.

[0031] like Figure 1 and Figure 2 As shown, the device further includes a distributed pressure sensing component 30, which is disposed on the wearing component 10 and located outside the pressure unit array component 20, and is used to sense the contact pressure information between the pressure unit array component and the puncture point area. In actual implementation, the distributed pressure sensing component here can be implemented based on an array piezoresistive sensor network; An array piezoresistive sensor network is a network system composed of multiple piezoresistive sensors, which are arranged in a matrix form and simultaneously monitor the pressure distribution on a complex surface based on the piezoresistive effect. In actual implementation, the components also have signal conditioning circuits, multiplexers and other components. Further technical implementation details and related principles can be found in existing public technical information, which will not be described in detail in this application.

[0032] like Figure 2 As shown, in order to achieve relevant regulation, the device also includes a controller 40, which is used to regulate the compression operation based on the dynamic pressure distribution represented by the contact pressure information to maintain effective compression on the puncture point; In actual implementation, relative to Figure 1 In the device structure shown in , the controller 40 can be separately set up and electrically connected to the pressure unit array component and the distributed pressure sensing component in the device by wired and / or wireless means, so as to facilitate the wearing and use of the device.

[0033] In the technical solution of the present application, a pressure unit array component is provided to perform a pressure operation on the puncture point area, and a distributed pressure sensing component is used to sense the contact pressure information between the pressure unit array component and the puncture point area. The pressure operation is adjusted according to the dynamic pressure distribution represented by the contact pressure information to achieve effective compression maintenance. Specifically, after the device is normally worn and adjusted, the contact pressure information represents a pressure state that can achieve effective compression. According to the inventor's observation and analysis of actual scenes, the human upper arm bone is only the humerus, which lacks a platform bone structure, and the brachial artery runs on the inner side of the humerus. When the user's posture changes slightly, due to the characteristics of the human body structure at the brachial artery, the compression position, the brachial artery puncture point and the humerus are prone to rotation, and the brachial artery will produce relative movement, which will cause the original pressure state to be unable to maintain effective compression. At the same time, this relative movement will cause a change in the pressure distribution, and then the pressure state of the pressure unit array assembly can be adjusted based on the change information of the pressure distribution, so as to continue to maintain effective compression. That is, the application of the above-mentioned configuration and configuration of the device in this application in practice can effectively reduce the occurrence of such compression failure caused by slight changes in the patient's posture, which is beneficial to the postoperative care of related minimally invasive interventional surgeries in clinical practice.

[0034] To facilitate understanding of the technical solution of the present application, the technical solution of the present application will be further introduced and explained from the control logic of the device.

[0035] In one embodiment, the device for achieving brachial artery compression hemostasis of the present application includes: Wearable component, suitable for binding to the upper arm of the human body to realize the wearability of the device; A pressure unit array component is provided on the wearable component and is used to perform a pressure operation on the puncture point area on the upper arm of the human body; A distributed pressure sensing component is provided on the wearing component and is located outside the pressure unit array component, and is used to sense contact pressure information between the pressure unit array component and the puncture point area; The controller is used to regulate the compression operation based on the dynamic pressure distribution represented by the contact pressure information to maintain effective compression on the puncture point.

[0036] Further, in this embodiment, as a specific implementation method, Figure 3 As shown, the pressure distribution represented by the contact pressure information is used to regulate the pressing operation, including: Step S301, acquiring sensing value information of each sensing point of the distributed pressure sensing component from the distributed pressure sensing component, and comparing and analyzing the current sensing value information of each sensing point of the distributed pressure sensing component with the sensing value information of the historical time; Step S302, based on comparative analysis of current sensing value information and historical sensing value information of each sensing point of the distributed pressure sensing assembly, determining a target sensing point whose pressure change characteristics meet the pulsation characteristics among the sensing points; It is easy for a person skilled in the art to understand that the brachial artery is one of the main arteries of the upper limb of the human body, and in practice, blood pressure and pulse monitoring is often performed through the brachial artery, such as existing related electronic sphygmomanometer products. The present application is based on a similar principle to determine the target sensing points whose pressure change characteristics among the sensing points meet the pulsation characteristics. The positions of these target sensing points obviously correspond to the current positions of the brachial artery. Then, step S303 may be performed to determine the projection position of the brachial artery on the pressure unit array assembly based on the position coordinates of the target sensing point; Specifically, in the present application, the positions of the pressure unit array assembly and the distributed pressure sensing assembly are relatively fixed, and the same two-dimensional coordinate system is used for position description. In the technical solution of the present application, from the perspective of engineering implementation, the contact surface between the device and the puncture point area can be approximately regarded as a plane. Correspondingly, the two-dimensional coordinate system is a plane rectangular coordinate system, and the direction parallel to the axial direction of the upper arm of the human body is the longitudinal direction of the coordinate system, that is, the y-axis direction. The above process of determining the projection position of the brachial artery on the pressure unit array assembly includes: Analyze the position coordinates of the target sensing point and determine the maximum and minimum values ​​of the horizontal coordinates (i.e., x-coordinates); The position corresponding to the strip area defined by the maximum value and the minimum value in the two-dimensional coordinate system is determined as the projection position of the brachial artery on the pressure unit array component; The above settings are adopted considering that in practice, identification based only on pulsation characteristics cannot accurately identify the position boundary of the brachial artery, but the overall direction of the brachial artery is certain. The above method can maximize the accuracy of the determined projection position to facilitate subsequent adjustment and implementation.

[0037] After step S303, step S304 is performed to adjust the pressure state of each unit of the pressure unit array assembly based on the projection position determined in step S303; Specifically, the process of adjusting the pressure state of each unit of the pressure unit array assembly based on the projection position includes: Obtain the predetermined pressure calibration information of each unit of the pressure unit array assembly. The pressure calibration information here refers to the pressure information determined based on the relevant calibration operation after the device is worn and adjusted. The pressure parameters represented by the pressure information can achieve effective compression when the calibration is implemented. The pressure parameters here include the pressure value parameters of each unit in the pressure unit array assembly. The pressure calibration information also includes the corresponding brachial artery calibration projection position information when the calibration is implemented.

[0038] Afterwards, the offset of the position adjustment is determined according to the position change of the brachial artery calibration projection position represented by the pressure calibration information and the projection position determined in step S303; As mentioned above, the projection area corresponding to the brachial artery is a strip-shaped area, and the projection position is actually the position coordinates of the corresponding strip-shaped area in data form, so the offset here is calculated using coordinates, such as the position change here is the change in the transverse coordinate; further, considering the uncertainty of the actual position change direction and area size, in actual implementation, the coordinates of the transverse center position can be calculated separately for the coordinate data of the projection position and the calibrated projection position, and then the value of the above offset can be determined based on the interpolation of the two transverse coordinates.

[0039] Afterwards, based on the offset, the overall translation adjustment of the pressure can be performed according to the pressure value distribution represented by the pressure value calibration information, so as to achieve a relatively unchanged compression operation on the brachial artery; As mentioned above, the pressure parameters represented by the pressure value calibration information include the pressure value parameters of each unit in the pressure unit array component. The pressure value and the position coordinates of the pressure unit corresponding to the pressure value here represent the pressure value distribution. It is easy to understand that the overall translation here refers to the corresponding change of the position coordinates in the pressure value parameter according to the offset value to achieve distributed pressure on the new projection area, thereby achieving a compression operation similar to that during the calibration implementation for the brachial artery (new position). Taking into account the actual pressure distribution, when the coordinates change, only the position coordinates of the pressure value higher than a basic value (corresponding to the edge position) can be changed, and the basic pressure value of the remaining positions remains unchanged; It is also easy to understand that this compression operation is targeted at the puncture point during calibration, and the puncture point must be on the brachial artery. In practice, the failure of compression caused by changes in patient posture is mainly because the position of the brachial artery has changed and the pressure cannot be adjusted accordingly. In this application, the above-mentioned change in contact pressure based on the compression surface is used to detect the new relative position of the brachial artery, and then the compression operation is followed and adjusted accordingly according to the detection results to maintain the effectiveness of the compression; this method essentially simulates the mechanism of manual compression operation by medical staff, and because it is automatically implemented based on the configuration and configuration of the device, compared with manual compression by medical staff, there is no fatigue problem of manual implementation by human power, and other related problems caused by different experience and techniques of medical staff can also be avoided.

[0040] Furthermore, considering that during the actual compression operation, as the puncture point gradually heals, the compression force should be gradually reduced, therefore, as a preferred implementation, the process of adjusting the overall translation of the pressure according to the pressure value distribution represented by the pressure value calibration information also includes: Calculate and determine the time interval information between the adjustment time and the calibration time; perform attenuation processing on each pressure value in the pressure value calibration information and update it according to the time interval information, and then perform translation adjustment according to the attenuated information. For example, attenuation processing can be performed by a fixed attenuation step, such as by determining an attenuation coefficient through the following expression, etc., (1) In expression (1), t represents the time interval from the adjustment time to the calibration time, and λ represents the decay rate parameter, which controls the decay speed and its specific value can be determined based on corresponding experiments.

[0041] In addition, it should be noted that the control logic of the above detection and adjustment in the present application is carried out in a fixed cycle. In other words, even if there is no position offset, that is, the offset is zero, the above time-based pressure adjustment is still carried out. At this time, the function of the device is actually equivalent to automatically adjusting the attenuation of the compression pressure over time.

[0042] In some embodiments, similar to existing compression hemostatic instruments, the device of the present application also has a timing reminder function, that is, the controller is also configured to start timing after the device calibration is completed, and when the timing reaches a preset time, generate and output a reminder message to indicate that the compression task is completed, so as to facilitate relevant medical staff to remove the device.

[0043] The following is a brief description of the implementation method and calibration process of pre-determining the pressure calibration information. This process actually takes into account the differences in the actual conditions of different individual patients. The initial pressure calibration information should be determined based on the actual conditions of the individual patients.

[0044] Specifically, in order to achieve the predetermination of the pressure calibration information, the controller is further configured as follows: After the device is worn, in response to the input of the first trigger instruction, each unit of the pressure unit array component is controlled to synchronously apply a basic pressure, such as the basic value mentioned above. Then, in response to the input of the second trigger instruction, the contact pressure distribution is sensed by the distributed pressure sensing component to obtain pressure calibration information.

[0045] From the perspective of medical users, the device is worn on the patient's upper arm, the center of the fixed plate structure is aligned with the top of the blood vessel puncture port (not the skin puncture port), and the winding structure is fastened to achieve close contact between the distributed pressure sensing component and the human body; then the first trigger instruction is input through the relevant input device electrically connected to the controller, such as input through the touch screen, so that the controller controls each unit of the pressure unit array component to synchronously apply basic pressure to achieve further compression. At the same time, the user presses the outer side of the fixed plate structure to compress the puncture site and pulls out the sheath from the puncture site. After pulling it out, the second trigger instruction is input so that the distributed pressure sensing component senses the contact pressure distribution at this time and obtains the pressure calibration information. Then the pressing hand is slowly lifted, and the device is based on Figure 3 The control logic shown maintains effective compression.

[0046] On the other hand, in view of the complexity of actual scenarios, the device proposed in this application for achieving brachial artery compression hemostasis may still experience abnormal bleeding during use. Due to the structural configuration adopted by the device of this application, this abnormality cannot be observed from the outside in a timely manner, which will lead to delays and amplification of the problem. Therefore, relevant technical means need to be taken to deal with new problems that may arise in the implementation of the technical solution of this application.

[0047] Specifically, as a preferred implementation, the control method logic of the controller also includes, based on the comparative analysis of the current sensing value information of each sensing point of the distributed pressure sensing component and the sensing value information of the historical moment, judging whether abnormal bleeding occurs according to the pressure change characteristics of each sensing point, and when it is judged that abnormal bleeding occurs, generating and outputting an alarm prompt message accordingly, so as to prompt relevant medical staff to deal with it in time; For example, a wireless communication module can be set in the controller, and based on the wireless communication link with the external medical information system, the alarm prompt message can be pushed to the medical staff's medical PDA (Personal Digital Assistant) through the external system, so that the corresponding holder of the medical PDA can respond to the abnormality in time according to the alarm prompt message.

[0048] Furthermore, according to the inventor's observation and analysis of the mechanism of abnormal bleeding, during bleeding, the flowing blood will flow out of the blood vessel cavity into the surrounding tissue gap until the pressure of the tissue gap around the brachial artery reaches equilibrium with the pressure in the arterial cavity, and the bleeding will stop; the arterial pressure is very high, which is the blood pressure level of the human body, so the surrounding tissue gap is filled with blood, resulting in obvious swelling in the area near the puncture point, which will lead to an increase in regional contact pressure, so the judgment of abnormal bleeding can be made based on this; Specifically, as a judgment of abnormal bleeding, the judgment of whether abnormal bleeding occurs according to the pressure change characteristics of each sensing point is specifically that when the pressure change characteristics of multiple sensing points are that the pressure values ​​continue to rise, it is judged that abnormal bleeding occurs; It is easy to understand that in the above judgment process, the specific number of multiple sensing points is related to the specifications of the distributed pressure sensing component. In the actual implementation of the solution, the specific number can be flexibly selected under the premise of ensuring that the area monitored by these sensing points meets certain requirements.

[0049] Furthermore, considering that in the technical solution of the present application, the projection area corresponding to the brachial artery can be identified, the pressure change characteristics of the sensing points close to the projection area can be used to judge abnormal bleeding, so as to improve the timeliness of the judgment alarm.

[0050] In addition, regarding the position description and processing of the distributed pressure sensing components and the pressure unit array components, since the resolution of the devices may be different, such as multiple sensing points may correspond to one pressure unit, in order to achieve an effective corresponding description of pressure and position, data processing methods in related flow field monitoring technologies can be used, such as spatial interpolation, triangulation and other processing methods. The relevant technical principles of these data processing methods can be found in existing public technical information, and this application will not describe them in detail here.

[0051] The above descriptions are only some preferred embodiments disclosed in this application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments disclosed in this application is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments disclosed in this application to form a technical solution.

Claims

1. A device for achieving brachial artery compression hemostasis, characterized in that: include: Wearable component, suitable for binding to the upper arm of the human body to realize the wearability of the device; A pressure unit array component is provided on the wearable component and is used to perform a pressure operation on the puncture point area on the upper arm of the human body; A distributed pressure sensing component, disposed on the wearing component and located outside the pressure unit array component, for sensing contact pressure information between the pressure unit array component and the puncture point area; The controller is used to regulate the compression operation based on the dynamic pressure distribution represented by the contact pressure information to maintain effective compression on the puncture point.

2. The device for achieving brachial artery compression hemostasis according to claim 1, wherein: The regulating the pressing operation based on the dynamic pressure distribution represented by the contact pressure information includes: Based on the comparative analysis of the current sensing value information and the historical sensing value information of each sensing point of the distributed pressure sensing component, the target sensing point whose pressure change characteristics meet the pulsation characteristics is determined among the sensing points; Based on the position coordinates of the target sensing point, determining the projection position of the brachial artery on the pressure unit array assembly; Based on the projection position, the pressure state of each unit of the pressure unit array assembly is adjusted.

3. The device for achieving brachial artery compression hemostasis according to claim 2, wherein: The pressure unit array component and the distributed pressure sensing component are relatively fixed in position, and the same two-dimensional coordinate system is used for position description; The process of determining the projection position of the brachial artery on the pressure applying unit array assembly includes: Analyzing the position coordinates of the target sensing point to determine the maximum and minimum values ​​of the horizontal coordinates; The position corresponding to the strip area defined by the maximum value and the minimum value in the two-dimensional coordinate system is determined as the projection position of the brachial artery on the pressure-applying unit array assembly.

4. The device for achieving brachial artery compression hemostasis according to claim 3, wherein: The process of adjusting the pressure state of each unit of the pressure unit array assembly based on the projection position includes: Obtaining the pressure calibration information of each unit of the predetermined pressure unit array assembly; Determining an offset amount of position adjustment according to a brachial artery calibration projection position represented by the pressure calibration information and a position change of the projection position; Based on the offset, an overall translation adjustment of the pressure is performed according to the pressure value distribution represented by the pressure value calibration information, so as to achieve a relatively unchanged compression operation on the brachial artery.

5. The device for achieving brachial artery compression hemostasis according to claim 4, wherein: The position change is a change in the horizontal coordinate.

6. The device for achieving brachial artery compression hemostasis according to claim 4, wherein: In order to achieve the predetermination of the pressure calibration information, the controller is further configured to: After the device is worn, in response to the input of the first trigger instruction, each unit of the pressure unit array assembly is controlled to synchronously apply a basic pressure, and then in response to the input of the second trigger instruction, the contact pressure distribution is sensed by the distributed pressure sensing assembly to obtain the pressure calibration information.

7. The device for achieving brachial artery compression hemostasis according to claim 2, wherein: It also includes a method of judging whether abnormal bleeding has occurred based on a comparative analysis of the current sensing value information of each sensing point of the distributed pressure sensing component and the sensing value information of the historical moments, and generating and outputting a corresponding alarm prompt message when it is judged that abnormal bleeding has occurred.

8. The device for achieving brachial artery compression hemostasis according to claim 7, wherein: The determination of whether abnormal bleeding occurs based on the pressure change characteristics of each sensing point obtained by analysis is specifically that abnormal bleeding occurs when the pressure change characteristics of multiple sensing points show that the pressure values ​​continue to rise.

9. The device for achieving brachial artery compression hemostasis according to claim 1, wherein: The pressure unit array assembly is implemented based on a micro airbag unit array in which each unit is independently controlled.

10. The device for achieving brachial artery compression hemostasis according to claim 1, wherein: The distributed pressure sensing component is implemented based on an array-type piezoresistive sensor network.

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