Automatic groin puncture point detection and compression system and method

Abstract

The invention relates to a groin puncture point automatic detection and compression system and method. The system comprises an acquisition unit, an analysis unit, a compression unit and a control unit. The acquisition unit comprises a first acquisition assembly and a second acquisition assembly; the analysis unit is provided with a first analysis assembly for continuously receiving images acquired by the first acquisition assembly and a second analysis assembly for receiving images acquired by the second acquisition assembly, and one end, far away from a pressing plate, of a pressing rod in the pressing unit is connected to the surface of a transparent visual window of the pressing unit in a penetrating manner; the first acquisition assembly acquires an image at the pressing plate, the second acquisition assembly acquires an image of skin around the pressing plate, and the first analysis assembly and the second analysis assembly cut the received image respectively and perform binarization processing and contrastive analysis. The control unit obtains a bleeding confirmation signal and / or a red and swollen confirmation signal output by the first analysis assembly and / or the second analysis assembly and outputs a control signal.

Description

[0001] The original basis of this divisional application is the patent application with application number 202211533720.5, application date November 29, 2022, and invention name “An Observable Inguinal Puncture Point Restraint System”. Technical Field

[0002] The present invention relates to the technical field of medical rehabilitation equipment, and in particular to a system and method for automatically detecting and compressing a groin puncture point. Background Art

[0003] The human groin area is primarily located between the lower abdomen and thigh, and is richly distributed with nerves, blood vessels, and ligaments. The arteries in the groin area primarily include the femoral artery, which is a common surface puncture site for interventional therapy. Interventional surgery performed through the femoral artery can treat tumors, hemangiomas, vascular malformations, various bleeding conditions, and other conditions. When performing femoral artery interventional therapy, the following steps are typically performed in sequence: finding a suitable puncture site, disinfecting the puncture site and surrounding skin, anesthetizing the puncture site and surrounding skin, puncturing with a puncture needle, inserting a guidewire into the femoral artery from the puncture needle and removing the puncture needle, inserting the arterial sheath and sheath core assembly along the guidewire, removing the guidewire and sheath core after the sheath is in place, confirming and flushing the sheath position, securing the sheath, and stopping bleeding at the puncture site. Among the above steps, improper sheath fixation at the puncture site and untimely hemostasis, leading to complications around the puncture site, remain common problems.

[0004] In the prior art, for example, the invention patent document with publication number CN113197612A proposes a visual and adjustable pressure hemostasis device for a femoral artery puncture site, which includes a device body and a fixing bandage. The fixing bandage is provided on the device body, and a visual support frame is fixedly connected to the side wall of the device body. The visual support frame is provided during the compression hemostasis process, allowing for visual observation. At the same time, a compression hemostasis mechanism is provided on the device body, and the compression hemostasis mechanism is provided to achieve hemostasis through compression. In this prior art, although the compression hemostasis process can be simply observed, it can only be roughly observed from the side through the visual support frame, and this observation can only be done manually. Medical staff and even patients themselves cannot always pay attention to the specific conditions of the puncture site. Therefore, in this case, other complications such as bleeding, redness and swelling may not be discovered in a timely manner.

[0005] In the prior art, an inflatable downward pressure tourniquet for a femoral artery puncture point is proposed in the invention patent document with publication number CN107970054A, which includes a waist fixation belt and an inguinal fixation belt. The waist fixation belt is arranged horizontally and is used to be fixed around the waist of the human body. The upper end of the inguinal fixation belt is connected to the middle part of the waist fixation belt, and the lower end of the inguinal fixation belt extends obliquely downward. The inguinal fixation belt is used to be wrapped and fixed to the thigh root on the puncture side of the human body. A transparent downward pressure airbag is provided on the inguinal fixation belt at the position corresponding to the femoral artery puncture point of the human body. The transparent downward pressure airbag includes a hard plate located on the outside, a mesh elastic layer located on the inside, and a transparent airbag wrapped between the hard plate and the mesh elastic layer. The two ends of the hard plate are respectively connected to the inguinal fixation belt, and the mesh elastic layer is fixedly connected to the hard plate. A pressure gauge is provided on one side of the transparent airbag.

[0006] In the prior art, for example, the utility model patent document with publication number CN216363758U proposes an adjustable groin compression device, which comprises: a trouser body, which is a pair of boxer shorts; a fixing assembly, which comprises a waist belt, leg fixing straps and a connecting belt arranged between the waist belt and the leg fixing straps; a receiving assembly provided on the connecting belt; a bottom wall of the connecting belt is detachably connected to a compression position corresponding to the boxer shorts; and a compression assembly, which is detachably provided on the receiving assembly and applies pressure to a compression object in the receiving assembly.

[0007] For most of the existing technologies for fixing and stopping bleeding at the femoral artery puncture point in the groin, most of them do not take into account the observation of the specific status of the puncture point, such as the latter two of the aforementioned existing technologies. Even if a small number of existing technologies take into account the need to observe the status of the puncture point, there is still ample room for improvement. For example, the observation method of the existing technology can only be observed from the side by manual observation, and the observation area and observation conditions need to be improved. Secondly, manual observation (including medical staff and patients themselves) cannot always keep an eye on the condition of the puncture point, which may lead to delayed detection of bleeding, redness, swelling or other conditions at the puncture point. In addition, the hemostatic compression device of the existing technology cannot perform compression and hemostasis at the first time of bleeding. Bleeding must be manually observed at the puncture point before the hemostatic compression device can be manually adjusted to stop bleeding. The timeliness of hemostasis needs to be improved.

[0008] In addition, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the inventor studied a large number of documents and patents when making the present invention, but due to space limitations, not all details and contents are listed in detail. However, this does not mean that the present invention does not have the characteristics of these prior arts. On the contrary, the present invention already has all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Summary of the Invention

[0009] In response to the deficiencies of the technical solutions proposed in the prior art, the present application proposes an observable inguinal puncture point constraint system, which includes: an acquisition unit for real-time acquisition of the status information of the puncture point; an analysis unit for analyzing the status information of the puncture point collected by the acquisition unit and outputting the results; a control unit for outputting a control signal based on the analysis results of the analysis unit; and a suppression unit for suppressing and restraining the puncture point after inguinal interventional surgery.

[0010] The collected images of the patient's puncture site are processed by binarization processing to achieve constraint control and management of the puncture point after the patient's inguinal interventional surgery under minimally configured computing processing.

[0011] By configuring the above-mentioned units, real-time monitoring of the puncture point and the skin around the puncture point can be achieved, and timely hemostasis measures and alarm measures can be taken when bleeding or redness and swelling occur at the puncture point. Among them, the compression unit can also stably and for a long time fix the sheath in the puncture point to avoid the sheath from becoming detached and / or displaced.

[0012] Preferably, the pressing unit has a pressing plate capable of pressing the puncture point and a pressing rod connected to the pressing plate, the end of the pressing rod away from the pressing plate passes through the surface of a transparent visual window connected to the pressing unit, and a first acquisition component capable of acquiring images at the pressing plate and a second acquisition component capable of acquiring images of the skin around the pressing plate are arranged inside the visual window. The analysis unit can receive the image information acquired by the acquisition unit and perform binarization and comparative analysis on the image information. The control unit can output a control signal based on the analysis result of the analysis unit and regulate the pressure applied to the puncture point by the pressing plate of the pressing unit.

[0013] In the above configuration, the pressure plate can perform compression hemostasis around the puncture point, and has a certain fixing effect on the sheath retained at the puncture point. The visual window is transparent, and the condition of the puncture point and the surrounding skin can be clearly observed through the top and / or side of the visual window. The acquisition unit can capture image information of the puncture point and the surrounding skin at a certain frequency, and send the acquired image information to the analysis unit for analysis. The control unit receives the analysis results of the analysis unit and determines whether to implement corresponding control operations based on the results. The pressing unit can adjust the pressure applied to the puncture point by the pressure plate through the adjustment component of the pressing unit under the control of the control unit.

[0014] Preferably, the first acquisition component and the second acquisition component of the acquisition unit can respectively acquire initial images of the pressure plate and the skin around the pressure plate at the first time when the restraint system is installed at the puncture point, and the first acquisition component and the second acquisition component can acquire corresponding images at the first frequency in the subsequent time.

[0015] The initial image is collected for comparison and analysis with images collected in subsequent time periods to determine whether bleeding, redness, swelling, etc. are present.

[0016] Preferably, the analysis unit is arranged inside a cavity fixedly connected to the visual window of the pressing component. The analysis unit is provided with a first analysis component capable of continuously receiving images acquired by the first acquisition component and a second analysis component capable of receiving images acquired by the second acquisition component. The first analysis component and the second analysis component will respectively crop the received images. The first analysis component crops to obtain a first image that only retains the state of the pressing plate, and the second analysis component crops to obtain a second image that only retains the state of the skin, thereby avoiding mutual interference between the state of the pressing plate and the state of the skin.

[0017] When the pressing unit is installed, if bleeding occurs at the puncture point, the blood will seep into the pressing plate and change the color of the pressing plate, but will not flow directly onto the surrounding skin. By separately collecting and cropping the image of the pressing plate and the image of the skin around the pressing plate, the bleeding and redness and swelling can be judged separately. The cropped image can also reduce the amount of calculation during the analysis and comparison process.

[0018] Preferably, the first analysis component and the second analysis component are capable of performing binarization processing on the cropped image.

[0019] Furthermore, the first analysis component can binarize the initial image of the first image into white. If bleeding occurs at the puncture point and contaminates the pressing plate, the contaminated portion of the pressing plate will be binarized into black.

[0020] Furthermore, the second analysis component can binarize the initial image of the second image into white. If the skin around the puncture point is red and swollen, the red and swollen skin will be binarized into black.

[0021] Furthermore, the analysis unit can perform pixel analysis on the binary image to obtain the number of white pixels and the number of black pixels, and calculate the pixel difference between the number of white pixels and the number of black pixels.

[0022] According to the above steps, the analysis unit can obtain the pixel difference between the bleeding area or redness and swelling area and the non-bleeding area or non-redness and swelling area in the image collected by the acquisition unit at each frequency, and then compare the pixel difference with the pixel difference of the same type in the initial image. If the difference between the two exceeds a preset threshold, there is a risk of bleeding or redness and swelling.

[0023] Preferably, the analysis unit compares the difference between each acquired image with the difference between the initial image, and when the pixel difference between the two exceeds the set threshold for the first time, the following corresponding operations are performed: if the above situation occurs in the first image, the first analysis component will send a suspected bleeding signal to the first acquisition component, and after receiving the suspected bleeding signal, the first acquisition component will adjust the image acquisition frequency from the first frequency to the second frequency, and if the pixel difference between the first image acquired at the second frequency and the pixel difference between the initial image still exceeds the threshold, the first analysis component will send a confirmation bleeding signal to the control unit; if the above situation occurs in the second image, the second analysis component will send a suspected redness and swelling signal to the second acquisition component, and after receiving the suspected redness and swelling signal, the second acquisition component will adjust the image acquisition frequency from the first frequency to the second frequency, and if the pixel difference between the second image acquired at the second frequency and the pixel difference between the initial image still exceeds the threshold, the second analysis component will send a confirmation redness and swelling signal to the control unit.

[0024] In the above configuration, the suspected bleeding signal and / or suspected redness and swelling signal fed back by the analysis unit is sent to the acquisition unit. After receiving the suspected bleeding signal, the acquisition unit can acquire images of the corresponding area at a second frequency that is faster than the first frequency, thereby speeding up the verification step and avoiding untimely initiation of hemostasis measures and early warning measures.

[0025] Preferably, the control unit disposed inside the top layer of the cavity is capable of acquiring the bleeding confirmation signal and / or the redness and swelling confirmation signal output by the first analysis component and / or the second analysis component.

[0026] Furthermore, when the control unit receives a bleeding confirmation signal, the control unit will drive the adjustment component of the compression unit to make a preliminary adjustment to the pressure applied to the puncture point to temporarily stop bleeding by increasing the pressure, and the control unit will drive the early warning component of the control unit to send a bleeding warning signal.

[0027] Furthermore, when the control unit receives a redness and swelling confirmation signal, the control unit will drive the early warning component to send a redness and swelling warning signal.

[0028] In the above configuration, if bleeding occurs at the puncture point, the puncture point needs to be stopped in time. Therefore, when receiving the bleeding confirmation signal from the first analysis component, the control unit will control the adjustment component to pressurize the pressure plate and transmit a bleeding warning signal to the early warning component at the same time. Redness and swelling do not require emergency treatment measures, so only a redness and swelling warning signal needs to be issued.

[0029] Preferably, the collection unit, analysis unit and control unit are all arranged on the mechanical structure of the pressing unit, and an application layer that can be adhered to the skin around the puncture point is provided around the visible window of the pressing unit. The visible window includes a fixed window and a movable window that can be movably connected to each other. A pressure rod that passes through the surface of the movable window away from the fixed window is connected to a limit block at one end of the outer surface of the movable window to prevent the pressure rod from detaching from the movable window. The pressure rod is connected in series with a movable movable plate on the inner side of the inner surface of the movable window, and a spring member is sleeved on the pressure rod between the movable plate and the pressure plate.

[0030] Through the above configuration, the dressing layer fixes the visual window around the puncture point, and the pressure plate fits exactly against the puncture point to compress, restrain and stop bleeding around the puncture point. Compared with the method of directly applying pressure to the pressure plate by pushing the pressure rod, the method of using the movable plate to compress the spring part has a certain buffering effect on the pressure applied by the spring part, while the direct pushing and pressurizing method has no buffering effect. The applied pressure will directly act on the pressure plate, and excessive pressure may cause additional damage to the wound at the puncture point.

[0031] Preferably, the adjusting component of the pressing unit is inside the cavity, and the adjusting column mounted on the positioning column is driven to rotate by the driving gear shaft to perform stepless adjustment of the position of the movable plate. A slit that allows the shell of the adjusting column to pass through is provided on the bottom surface of the cavity connected to the movable window. The part of the adjusting column that passes through the slit is connected to the movable plate. The adjusting column can be used to adjust the distance between the movable plate and the pressure plate, thereby compressing the spring member between the two. The pressing unit also provides a manual adjustment component on the side of the driving gear shaft away from the adjusting column.

[0032] Preferably, the positioning column and the adjusting column of the adjusting assembly are arranged in a sleeve manner of a screw and a nut, and the end of the adjusting column away from the movable window is provided with a gear plate fixedly connected to the adjusting column, and the gear plate is transmitted through a gear shaft arranged inside the cavity, and the axial direction of the gear shaft is arranged parallel to the axial direction of the adjusting column.

[0033] Compared with the method of directly using the telescopic rod for adjustment, the method of using gears to drive the adjustment column to move can save more length space while meeting the same stroke, thereby facilitating the design of the entire pressing unit to be more compact.

[0034] Preferably, the pressing unit is further provided with a fixing assembly for holding the pressing unit around the puncture point.

[0035] Furthermore, the fixing component is equipped with at least one waist strap that can be wrapped around the patient's waist, and the waist strap is connected to the dressing layer of the pressing unit through a connecting belt. The fixing component is also equipped with at least a first leg strap and a second leg strap that can be wrapped around the patient's legs on the dressing layer. The length of the strap of the fixing component is adjustable, and the surface of the strap that contacts the skin is sticky.

[0036] The compression unit is further fixed by various straps of the fixing assembly, which fully prevents the compression unit from falling off or shifting from the puncture point. The adjustable straps can adapt to patients of different body shapes, thereby improving the versatility of the restraint system of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a simplified connection relationship diagram of the restraint system of the present invention;

[0038] Figure 2 is a simplified structural schematic diagram of the pressing assembly of the present invention;

[0039] Figure 3 It is a partially simplified structural schematic diagram of the pressing assembly of the present invention;

[0040] Figure 4 It is a partially simplified structural schematic diagram of the viewing window of the present invention;

[0041] Figure 5 It is a simplified schematic diagram of the structure of the pressing assembly of the present invention from a top view.

[0042] Reference Signs List

[0043] 100: Collection unit; 200: Analysis unit; 300: Control unit; 400: Pressing unit; 500: Terminal; 110: First collection component; 120: Second collection component; 210: First analysis component; 220: Second analysis component; 310: Warning component; 320: Power component; 410: Adjustment component; 450: Fixing component; 411: Visual window; 412: Pressing plate; 413: Pressing rod; 414: Traps ; 415: Spring member; 416: Positioning column; 417: Adjusting column; 418: Gear shaft; 419: Gear plate; 420: Cavity; 421: First partition; 422: Second partition; 423: Shell; 424: Contact layer; 425: Application layer; 426: Fixing strip; 427: Limiting block; 428: Fixed window; 429: Movable window; 451: Waist strap; 452: First leg strap; 453: Second leg strap. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-5 The present invention will be described in detail.

[0045] Figure 1The diagram shows the connection relationship of the various units of an observable inguinal puncture point restraint system of the present invention. The restraint system includes: an acquisition unit 100, which is used to collect status information of the puncture point in real time; an analysis unit 200, which is used to analyze the status information of the puncture point collected by the acquisition unit 100 and output the result; a control unit 300, which is used to output a control signal according to the analysis result of the analysis unit 200; and a suppression unit 400, which is used to suppress and restrain the puncture point after inguinal interventional surgery.

[0046] By configuring the above-mentioned units, real-time monitoring of the condition of the puncture point and the skin around the puncture point can be achieved, and timely hemostasis measures and alarm measures can be taken when bleeding or redness and swelling occur at the puncture point. Among them, the compression unit 400 can also stably and for a long time fix the sheath in the puncture point to avoid the sheath from becoming detached and / or displaced.

[0047] according to Figure 2-4 As shown, the pressing unit 400 includes a pressing plate 412 capable of pressing the puncture point, and a pressing rod 413 connected to the pressing plate 412. The end of the pressing rod 413, away from the pressing plate 412, extends through the surface of a transparent viewing window 411 connected to the pressing unit 400. Disposed within the viewing window 411 are a first acquisition component 110 capable of capturing images of the pressing plate 412 and a second acquisition component 120 capable of capturing images of the skin surrounding the pressing plate 412. The analysis unit 200 is capable of receiving the image information acquired by the acquisition unit 100 and performing binarization processing and comparative analysis on the image information. Based on the analysis results of the analysis unit 200, the control unit 300 is capable of outputting a control signal and regulating the pressure applied by the pressing plate 412 of the pressing unit 400 to the puncture point.

[0048] In the above configuration, the pressure plate 412 can perform compression hemostasis around the puncture point, and has a certain fixing effect on the sheath retained at the puncture point. The visual window 411 is transparent, and the condition of the puncture point and the surrounding skin can be clearly observed through the top and / or side of the visual window 411. The acquisition unit 100 can capture image information of the puncture point and the surrounding skin at a certain frequency, and send the acquired image information to the analysis unit 200 for analysis. The control unit 300 receives the analysis results of the analysis unit 200 and determines whether to implement corresponding control operations based on the results. The pressing unit 400 can adjust the pressure applied to the puncture point by the pressure plate 412 through the adjustment component 410 of the pressing unit 400 under the control of the control unit 300.

[0049] Preferably, the surface where the pressing plate 412 of the pressing unit 400 connects to the pressing rod 413 is provided as a shell 423, and a contact layer 424 is provided on the surface of the shell 423 that contacts the puncture point. Specifically, the shell 423 is also transparent, but has a certain hardness, and the contact layer 424 can be made of medical cotton connected to the surface of the shell 423.

[0050] Specifically, the geometric center area of ​​the shell 423 of the pressure plate 412 is raised, that is, the center area of ​​the shell 423 has a raised point that is higher than the surrounding area. This raised point extends smoothly from the surrounding area, and a groove on the shell 423 extends from the raised point to one of the edges. The configuration of the raised point prevents the pressure plate 412 from directly compressing the skin around the puncture point when compressing the skin, and instead uses the edges to compress and stop bleeding on the surrounding blood vessels. The groove is designed to prevent the pressure plate 412 from excessively compressing the sheath tube retained at the puncture point, causing it to shift. The groove not only fixes the sheath tube, but also prevents the sheath tube from being directly compressed by the pressure plate 412.

[0051] Through the above configuration, the dressing layer 425 fixes the visual window 411 around the puncture point, and the pressure plate 412 fits exactly against the puncture point to compress, restrain and stop bleeding the puncture point. Compared with the method of directly applying pressure to the pressure plate 412 by pushing the pressure rod 413, the method of using the movable plate 414 to compress the spring member 415 has a certain buffering effect on the pressure applied by the spring member 415, while the direct pushing and pressurizing method has no buffering effect. The applied pressure will directly act on the pressure plate 412, and excessive pressure may cause additional damage to the wound at the puncture point.

[0052] Specifically, the mechanical structure of the pressing unit 400 is specifically configured as follows: the pressing unit 400 has a pressing plate 412 capable of pressing the puncture point and a pressing rod 413 connected to the pressing plate 412. The end of the pressing rod 413 away from the pressing plate 412 passes through the surface of a transparent visual window 411 connected to the pressing unit 400. The pressing condition of the pressing plate 412 on the puncture point can be observed through the visual window 411. The outer surface of the visual window 411 away from the pressing plate 412 is provided with an adjustment component 410 that can adjust the pressure applied to the puncture point by the pressing plate 412 through a spring member 415 mounted on the pressure rod 413. A dressing layer 425 that can fit onto the skin around the puncture point is provided on the circumferential outer side of the visual window 411, and several straps of the fixing component 450 are connected to the dressing layer 425.

[0053] Furthermore, the visible window 411 is divided into a fixed window 428 fixedly connected to the application layer 425 and a movable window 429 that can be detachably connected to the fixed window 428. The fixed window 428 is configured as a cylinder with openings at both ends, and the movable window 429 is configured as a cylinder connected to the fixed window 428 with an opening at one end.

[0054] Furthermore, the end of the movable window 429 that is not set as an opening is penetrated by the pressure rod 413, and the pressure rod 413 is connected to a limit block 427 on one end of the outer surface of the movable window 429 to prevent the pressure rod 413 from detaching from the movable window 429. The pressure rod 413 is connected in series with a movable movable plate 414 on the inner side of the inner surface of the movable window 429, and a spring member 415 is sleeved on the pressure rod 413 between the movable plate 414 and the pressure plate 412.

[0055] Furthermore, the adjustment component 410 is provided with a cavity 420 fixedly connected to the outer surface of the movable window 429 on the outer surface of the movable window 429 , and a positioning column 416 fixedly connected to the top of the cavity 420 via a connecting column is provided inside the cavity 420 .

[0056] Furthermore, the outer surface of the positioning column 416 is configured with threads, and the interior of the positioning column 416 is configured as a hollow area. The end of the connecting limit block 427 of the pressure rod 413 passing through the movable window 429 is placed in the hollow area of ​​the positioning column 416.

[0057] Furthermore, an adjustment column 417 having a height greater than that of the positioning column 416 is sleeved on the positioning column 416 inside the cavity 420 , and an inner surface of the adjustment column 417 in contact with the thread of the positioning column 416 is provided with nut threads corresponding to the thread of the positioning column 416 .

[0058] Furthermore, a slit of the shell through which the adjusting column 417 can pass is provided on the bottom surface of the cavity 420 connected to the movable window 429. The part of the adjusting column 417 passing through the slit is connected to the movable plate 414. The distance between the movable plate 414 and the pressure plate 412 can be adjusted by using the adjusting column 417.

[0059] Preferably, the collection unit 100 , the analysis unit 200 and the control unit 300 are all configured on the mechanical structure of the pressing unit 400 .

[0060] Preferably, the adjusting component 410 of the pressing unit 400 is inside the cavity 420, and the driving gear shaft 418 drives the adjusting column 417 mounted on the positioning column 416 to rotate so as to perform stepless adjustment on the position of the movable plate 414. A slit through which the shell of the adjusting column 417 can pass is provided on the bottom surface of the cavity 420 connected to the movable window 429, and the part of the adjusting column 417 passing through the slit is connected to the movable plate 414. The adjusting column 417 can be used to adjust the distance between the movable plate 414 and the pressure plate 412, thereby compressing the spring member 415 between the two.

[0061] Preferably, the positioning column 416 and the adjusting column 417 of the adjusting assembly 410 are arranged in a sleeve manner of a screw and a nut, and the end of the adjusting column 417 away from the movable window 429 is provided with a gear plate 419 fixedly connected to the adjusting column 417, and the gear plate 419 is transmitted through a gear shaft 418 arranged inside the cavity 420, and the axial direction of the gear shaft 418 is arranged parallel to the axial direction of the adjusting column 417.

[0062] Compared with the method of directly using the telescopic rod for adjustment, the method of using gears to drive the adjustment column 417 to move can save more length space while meeting the same stroke, thereby facilitating the design of the entire pressing unit 400 to be more compact.

[0063] Preferably, the first acquisition component 110 and the second acquisition component 120 of the acquisition unit 100 can respectively acquire initial images of the pressure plate 412 and the skin around the pressure plate 412 at the first time when the restraint system is installed at the puncture point, and in the subsequent time, the first acquisition component 110 and the second acquisition component 120 can acquire corresponding images according to the first frequency.

[0064] Specifically, a plurality of first acquisition assemblies 110 are connected to the surface of the flap 414 facing the pressure plate 412. Preferably, there are four first acquisition assemblies 110, evenly distributed in four directions around the flap 414. Each first acquisition assembly 110 is capable of acquiring image information of the pressure plate 412 in a corresponding direction. A plurality of second acquisition assemblies 120 are connected to the inner surface of the movable window 429 surrounding the flap 414. Preferably, there are four second acquisition assemblies 120, evenly distributed in four directions around the flap 414. Each second acquisition assembly 120 is capable of acquiring image information of the skin in a corresponding direction.

[0065] More specifically, the first acquisition component 110 and the second acquisition component 120 can be configured as small cameras, such as mobile phone cameras, to avoid occupying a large space.

[0066] The initial image is collected for comparison and analysis with images collected in subsequent time periods to determine whether bleeding, redness, swelling, etc. are present.

[0067] Specifically, the first frequency of the acquisition unit 100 is adjustable, and the specific time of the first frequency can be set. For example, the first frequency can be ten minutes, five minutes, three minutes, one minute, etc. According to the specific situation of the patient, medical staff can independently select the acquisition frequency.

[0068] Preferably, the images collected by the acquisition unit 100 can be sent not only to the analysis unit 200, but also to the terminal 500. Specifically, the terminal 500 can be a medical staff's work computer, mobile phone, or electronic device capable of receiving image information, so that the medical staff can quickly check the real-time situation of the puncture site when necessary.

[0069] Preferably, the analysis unit 200 is disposed within a cavity 420 fixedly connected to the visual window 411 of the pressing assembly. Specifically, the analysis unit 200 is disposed in the half of the cavity 420 away from the gear shaft 418. A first partition 421 is disposed between the analysis unit 200 and the adjustment assembly 410 to protect the analysis unit 200. The first partition 421 is positioned along the axis of the fixing column 416 and the adjustment column 417 of the adjustment assembly 410, thereby isolating the cavity 420 into two areas.

[0070] Preferably, the analysis unit 200 is configured with a first analysis component 210 that can continuously receive images acquired by the first acquisition component 110 and a second analysis component 220 that receives images acquired by the second acquisition component 120. The first analysis component 210 and the second analysis component 220 will respectively crop the received images. The first analysis component 210 crops to obtain a first image that only retains the state of the pressure plate 412, and the second analysis component 220 crops to obtain a second image that only retains the state of the skin, thereby avoiding mutual interference between the state of the pressure plate 412 and the state of the skin.

[0071] When the pressing unit 400 is installed, if bleeding occurs at the puncture point, the blood will seep into the pressing plate 412 and change the color of the pressing plate 412, but will not flow directly onto the surrounding skin. By separately collecting and cropping the image of the pressing plate 412 and the image of the skin around the pressing plate 412, the bleeding and redness and swelling can be judged separately, and the cropped images can also reduce the amount of calculation during the analysis and comparison process.

[0072] Preferably, the first analysis component 210 and the second analysis component 220 can perform binarization processing on the cropped image.

[0073] Specifically, when performing the binarization process, the analysis unit 200 may process the image using Matlab or Python.

[0074] Furthermore, the first analysis component 210 can binarize the initial image of the first image into white. If bleeding occurs at the puncture point and contaminates the pressing plate 412 , the contaminated portion of the pressing plate 412 will be binarized into black.

[0075] Furthermore, the second analysis component 220 can binarize the initial image of the second image into white. If the skin around the puncture point is red and swollen, the red and swollen skin will be binarized into black.

[0076] Furthermore, the analysis unit 200 can perform pixel analysis on the binary image to obtain the number of white pixels and the number of black pixels, and calculate the pixel difference between the number of white pixels and the number of black pixels.

[0077] According to the above steps, the analysis unit 200 can obtain the pixel difference between the bleeding area or redness and swelling area and the non-bleeding area or non-redness and swelling area in the image collected by the collection unit 100 at each frequency, and then compare the pixel difference with the pixel difference of the same type in the initial image. If the difference between the two exceeds a preset threshold, there is a risk of bleeding or redness and swelling.

[0078] Preferably, the analysis unit 200 compares the difference between each acquired image and the difference between the initial image. When the pixel difference between the two exceeds a set threshold for the first time, the following corresponding operations are performed: if the above situation occurs in the first image, the first analysis component 210 will send a suspected bleeding signal to the first acquisition component 110. After receiving the suspected bleeding signal, the first acquisition component 110 will adjust the image acquisition frequency from the first frequency to the second frequency. If the pixel difference between the first image acquired at the second frequency and the pixel difference between the initial image still exceeds the threshold, the first analysis component 210 will send a confirmation bleeding signal to the control unit 300; if the above situation occurs in the second image, the second analysis component 220 will send a suspected redness and swelling signal to the second acquisition component 120. After receiving the suspected redness and swelling signal, the second acquisition component 120 will adjust the image acquisition frequency from the first frequency to the second frequency. If the pixel difference between the second image acquired at the second frequency and the pixel difference between the initial image still exceeds the threshold, the second analysis component 220 will send a confirmation redness and swelling signal to the control unit 300.

[0079] In the above configuration, the suspected bleeding signal and / or suspected redness and swelling signal fed back by the analysis unit 200 is sent to the acquisition unit 100. After receiving the suspected bleeding signal, the acquisition unit 100 can acquire images of the corresponding area at a second frequency that is faster than the first frequency, thereby speeding up the verification step and avoiding untimely initiation of hemostasis measures and early warning measures.

[0080] Specifically, the second frequency of the acquisition unit 100 needs to quickly acquire images, so the second frequency is preferably set to ten seconds, five seconds, three seconds, etc., so as to quickly confirm the suspected bleeding signal and avoid spending too much time on verifying the suspected bleeding signal.

[0081] Preferably, the control unit 300 disposed inside the top layer of the cavity 420 can obtain the bleeding confirmation signal and / or the redness and swelling confirmation signal output by the first analysis component 210 and / or the second analysis component 220 .

[0082] Specifically, a second partition plate 422 is provided at the top of the cavity 420, thereby isolating the positioning column 416 and the adjustment column 417 of the adjustment assembly 410, as well as a portion of the gear shaft 418, from the control unit 300. A portion of the gear shaft 418 extends through the second partition plate 422, and the power assembly 320 of the control unit 300, which is configured as a motor and is used by the control unit 300 to drive the gear shaft 418, is connected to the portion of the gear shaft 418 that extends beyond the second partition plate 422.

[0083] Furthermore, when the control unit 300 receives a bleeding confirmation signal, the power assembly 320 of the control unit 300 drives the adjustment assembly 410 of the compression unit 400 to initially adjust the pressure applied to the puncture point, thereby temporarily stopping the bleeding by increasing the pressure. Furthermore, the control unit 300 drives the warning assembly 310 of the control unit 300 to send a bleeding warning signal. Specifically, the power assembly 320 can be configured as a small rotary motor, and the control unit 300 controls the rotation of the motor by controlling the power supply connected to the power assembly 320.

[0084] Furthermore, when a redness and swelling confirmation signal is received, the control unit 300 drives the early warning component 310 to send a redness and swelling warning signal.

[0085] In the above configuration, if bleeding occurs at the puncture point, it is necessary to stop the bleeding in time. Therefore, when receiving the bleeding confirmation signal from the first analysis component 210, the control unit 300 will control the adjustment component 410 to pressurize the pressure plate 412, and at the same time transmit a bleeding warning signal to the early warning component 310. No emergency measures are required for redness and swelling, so only a redness and swelling warning signal needs to be issued.

[0086] Preferably, after the control unit 300 issues a warning signal, the early warning component 310 will sound an alarm. The alarm method can be through sound, such as a buzzer, or through light, such as flashing indicator light; or a combination of the two.

[0087] Preferably, the warning signal of the control unit 300 can also be sent to the terminal 500 of the medical staff. When the signal is sent to the terminal 500 of the medical staff, it can attract the attention of the medical staff through vibration, ringing, etc., thereby conveying the information to the medical staff and promptly handling the abnormal condition of the puncture point.

[0088] Preferably, the pressing unit 400 is further provided with a manual adjustment component on the side of the driving gear shaft 418 away from the adjustment column 417.

[0089] Specifically, when configuring the initial pressure of the pressing unit 400, the pressure applied by the pressing unit 400 to the puncture point can be adjusted through the manual adjustment component. The manual adjustment component is specifically configured on the right side of the driving gear shaft 418, and its specific shape is also a kind of gear shaft. This gear shaft fixes the manual adjustment component in the cavity 420 through the shaft body. The shaft body extends out of the upper surface of the cavity 420 at one end, and a knob for rotating the manual adjustment component is provided at the end extending out of the surface of the cavity 420. A clamping shaft is provided at one end of the knob. When manual adjustment is not required, the clamping shaft is clamped on the upper surface of the cavity 420. When manual adjustment is required, the clamping shaft is rotated into the interior of the cavity 420. In this way, the gears on the gear shaft of the manual adjustment component can be switched between separation and engagement with the gears of the driving gear shaft. When manual adjustment is required, the two gears are in an engaged state. When manual adjustment is not required, the two gears are in a separated state up and down.

[0090] Preferably, the information transmission between the above-mentioned acquisition unit 100, analysis unit 200, control unit 300 and pressing unit 400 can be wired or wireless.

[0091] According to Figure 5 As shown, the pressing unit 400 is further provided with a fixing component 450 for holding the pressing unit 400 around the puncture point.

[0092] Furthermore, the fixing component 450 is at least provided with a waist strap 451 that can be wound around the patient's waist. The waist strap 451 is connected to the dressing layer 425 of the pressing unit 400 through a connecting strap. The fixing component 450 is at least further provided with a first leg strap 452 and a second leg strap 453 that can be wound around the patient's legs on the dressing layer 425. The length of the straps of the fixing component 450 is adjustable, and the surface of the straps that fits the skin has adhesiveness.

[0093] Specifically, each strap consists of a strap body, a length adjustment buckle and a buckle. The two ends of the strap body sequentially pass through the length adjustment buckle and the buckle, and then fold back and are fixed on the length adjustment buckle, so that both ends of the strap form a circular structure. The length adjustment buckle is in the shape of a Chinese character 'Ri' (day). The two ends of the strap body sequentially pass through the two end holes of the length adjustment buckle and the buckle, and then fold back and are fixed on the middle edge of the 'Ri'-shaped length adjustment buckle. The buckle consists of a 'Mu'-shaped component and a card that can be stuck on the 'Mu'-shaped component. The 'Mu'-shaped component and the card are respectively connected to the two ends of the strap body. By changing the size of the loop formed by the above-mentioned strap, the length of the strap can be adjusted.

[0094] Specifically, all of the above-mentioned straps have a certain degree of elasticity, and the ends of the straps are also provided with adhesion areas that can be connected to the back of the straps with nylon buckles. The back refers to the surface of the strap away from the skin, and its surface is sewn with elastic gauze. Pressure-sensitive adhesive is coated on the elastic gauze layer to further fix the pressed component.

[0095] Preferably, a fixing strip 426 is also disposed within the application layer 425 of the compression unit 400 to secure the sheath tube at the puncture site. The fixing strip 426 has a higher adhesiveness than the application layer 425. However, because excessive adhesiveness makes it difficult to remove from the skin or can cause greater pain to the patient during removal, the smaller fixing strip 426 is only used to secure the sheath tube at its three-way connection.

[0096] The compression unit 400 is further fixed by various straps of the fixing assembly 450, which fully prevents the compression unit 400 from falling off or shifting from the puncture point. In addition, the adjustable straps can adapt to patients of different body shapes, thereby improving the versatility of the restraint system of the present invention.

[0097] According to a preferred embodiment, this embodiment provides a device that can quickly and in real time acquire an image of the puncture site near the patient's puncture site and make targeted and rapid judgments on various exudate conditions and formulate corresponding prevention plans. This embodiment is generally similar to the structure of the above-mentioned embodiment, with the improvement being that the portion of the pressing unit 400 in this embodiment that applies pressure to the patient's physiological part, that is, the pressing plate 412 and its motion-participating portion, are configured as differentiated areas and can be individually controlled to apply or reduce pressure to the desired target location. For example, when the pressing plate 412 is configured in an annular shape, at least two areas thereof are differentially divided, for example, the two parts are directly physically separated in the structure to form two semicircular rings or a combination of a partial ring and another partial ring. The two rings complement each other and can together form the annular structure of the entire pressing plate 412.

[0098] Furthermore, the pressure plate 412 is not only divided into two independent areas, but can also be divided into more areas when more compression requirements are met.

[0099] Preferably, in this embodiment, the pressing plate 412 is divided into at least an exudate point pressing area, a puncture needle pressing area and a side pressing area. The three pressing areas are respectively used to press the exudate point, the puncture needle and the remaining parts when the device is used. At this time, the three pressing areas are divided according to their functions. Specifically, the pressing plate 412 itself can be divided into several independent pressing areas, each of which can be called a pressing unit 400 area. When one or several pressing unit 400 areas are used to press a certain object (such as an exudate point), the one or several pressing unit 400 areas constitute the corresponding pressing area.

[0100] In response to the pressing requirements of different targets, different pressing areas can be configured to have different functions and even structures. In detail, the puncture needle pressing area is constituted as a pressing structure containing at least a medical film, the seepage point pressing area is constituted as a pressing structure containing at least a variety of switchable disinfection and dressing materials, and the bypass pressing area is constituted as a switchable pressing structure having at least a liquid absorption detection unit combined with a bypass pressing unit 400.

[0101] The switchable structure can be used, for example, to divide different sub-areas within the same compression area, each of which has an independently adjustable compression structure and each sub-area is coated with a dressing or is equipped with a cloth structure coated with a corresponding dressing. When necessary, one or several sub-areas can be individually controlled to be compressed onto the patient's body. Further, it is divided into at least three sub-areas, one of which is a single gauze dressing sub-area, the second is a dressing sub-area containing a coagulation component, and the third is a silver ion alginate dressing sub-area, wherein the coagulation component can be a gelatin sponge, aminocaproic acid, or other substances that can coagulate blood. The sub-areas can be arranged in parallel along the radial direction of the pressure plate 412 in a ring-shaped outward expansion manner so that each sub-area can apply pressure to as many areas of the patient's body as possible. Preferably, the silver ion alginate area also has a liquid absorption detection unit.

[0102] Based on the above, this embodiment provides an automatic compression detection solution.

[0103] During normal time, a single gauze dressing sub-area is pressed at the patient's puncture point, and the acquisition unit 100 acquires the single gauze dressing surface corresponding to the puncture wound site. When the exudate point is detected by visual recognition, the analysis unit 200 confirms the first exudate point position and first controls the single gauze dressing sub-area to increase pressure and simultaneously controls the injection needle pressing area to increase pressure. During the process, the acquisition unit 100 continuously acquires the diffusion image of the exudate on the single gauze dressing surface at a second frequency. The analysis unit 200 analyzes the ratio of the proportion of the black level in the diffusion image to the white level on the single gauze dressing surface based on the video frame. When the ratio is lower than the first threshold, the current operation is maintained until the analysis unit is reached. The unit 200 confirms that the exudation has stopped by collecting images. When the change ratio is higher than the first threshold and lower than the second threshold, the control unit 300 controls the puncture needle pressing area to reduce the pressure. The analysis unit 200 continues to analyze the collected images at the same time. If the change ratio changes to continuously decrease and can change to be lower than the first threshold, the current reduced puncture needle pressing area pressure and the single gauze sub-area pressure are maintained and compression is continued until it is judged that the exudation has stopped. If the change ratio still maintains the current level or continues to increase, the control unit 300 controls the puncture needle pressing area to increase the pressure and switches the single gauze dressing sub-area to the dressing sub-area containing coagulation components, and continues to maintain compression until it is detected that the exudation has stopped.

[0104] This solution, based on fully automated detection of the patient's puncture site, is able to detect bleeding immediately compared to traditional manual methods. It can also rapidly detect bleeding rates, enabling simultaneous changes in compression patterns and re-verification of the effectiveness of these changes. This allows for rapid identification of the most appropriate compression strategy for the current exudate situation. For example, this solution notes that exudate may be caused by needle pressure, in addition to changes in puncture site pressure or vascular cavitation. Excessive needle pressure can lead to exudate at the puncture site, while insufficient needle pressure can also cause vascular cavitation. Therefore, the severity of needle pressure is an urgent consideration. Traditional manual care models are unable to rapidly respond to exudate and adjust compression strategies based on short-term exudate conditions. Often, by the time exudate is detected, the gauze has already been completely or largely contaminated by the fluid. Neither the location of the exudate point nor the exudate rate are known, making it impossible to accurately adjust the compression strategy based on these factors. This results in slow and inadequate exudate treatment, or even worsening the effects. This solution can use the short golden period of exudation to quickly identify the exudate point and the optimal compression method. It can also adjust the compression method based on the exudate situation and quickly judge and adjust the final compression method based on the exudate situation. This can significantly increase the expected benefits of this step and improve the safety of the patient's puncture. Here, the puncture needle can be understood as the part of the puncture needle or indwelling catheter that is inserted into the patient's body.

[0105] Additionally, when the liquid absorption detection unit detects the leakage point, the control unit 300 controls the silver ion-containing alginate sub-region and / or the bypass suppression region to suppress the corresponding region alone or jointly. In one case, the suppression region corresponding to the liquid absorption detection unit that detects the corresponding signal is activated. In another case, no matter which liquid absorption detection unit generates the detection signal, both of the above-mentioned suppression regions are activated. This solution enables the device to deal with not only leakage of blood, but also leakage of lymph. Since lymph is usually colorless and difficult to judge by image recognition, the infiltration of lymph is obtained by configuring liquid absorption detection, so that targeted compression prevention measures can be implemented. The bypass suppression region mainly suppresses the lymphatic vessels accompanying the blood vessels. Compared with directly compressing the puncture area, which is usually a blood vessel, the compression effect of the bypass area is better.

[0106] It should be noted that the above-described specific embodiments are illustrative only. Those skilled in the art may devise various solutions based on the disclosure of the present invention, and such solutions fall within the scope of the present invention and are intended to be protected by the present invention. Those skilled in the art should understand that the present description and its accompanying drawings are intended to be illustrative only and are not intended to limit the scope of the claims. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. An automatic inguinal puncture point detection and compression system, characterized in that: The system comprises: A collection unit (100) comprising a first collection component (110) and a second collection component (120); An analysis unit (200) is configured with a first analysis component (210) for continuously receiving images acquired by the first acquisition component (110) and a second analysis component (220) for receiving images acquired by the second acquisition component (120); The pressing unit (400) comprises a pressing plate (412) capable of pressing the puncture point and a pressing rod (413) connected to the pressing plate (412), wherein one end of the pressing rod (413) away from the pressing plate (412) penetrates the surface of a transparent visual window (411) connected to the pressing unit (400); The first acquisition component (110) acquires images at the pressure plate (412), the second acquisition component (120) acquires images of the skin around the pressure plate (412), and the first analysis component (210) and the second analysis component (220) respectively crop the received images, perform binarization processing on the cropped images, and conduct comparative analysis; The control unit (300) obtains the bleeding confirmation signal and / or the redness and swelling confirmation signal output by the first analysis component (210) and / or the second analysis component (220), and outputs a control signal.

2. The system according to claim 1, wherein: The first analysis component (210) crops to obtain a first image that only retains the state of the pressure plate (412), and the second analysis component (220) crops to obtain a second image that only retains the state of the skin.

3. The system according to claim 1 or 2, characterized in that The first analysis component (210) binarizes the initial image of the first image into white. If bleeding occurs at the puncture point and contaminates the pressing plate (412), the contaminated portion of the pressing plate (412) is binarized into black. The second analysis component (220) binarizes the initial image of the second image into white. If the skin around the puncture point is red and swollen, the red and swollen skin will be binarized into black.

4. The system according to any one of claims 1 to 3, characterized in that: The analysis unit (200) calculates the pixel difference between the bleeding area or the red and swollen area and the non-bleeding area or the non-red and swollen area in the image collected by the collection unit (100) at each collection frequency, and compares the pixel difference with the pixel difference of the same type in the initial image. If the difference between the two exceeds a preset threshold, there is a risk of bleeding or red and swollen.

5. The system according to any one of claims 1 to 4, characterized in that: The analysis unit (200) compares the difference value of each acquired image with the difference value of the initial image, and when the pixel difference value of the two exceeds a set threshold for the first time, performs the following corresponding operations: If the above situation occurs in the first image, the first analysis component (210) will send a suspected bleeding signal to the first acquisition component (110). After receiving the suspected bleeding signal, the first acquisition component (110) will adjust the image acquisition frequency from the first frequency to the second frequency. If the pixel difference between the first image acquired at the second frequency and the pixel difference between the initial image still exceeds a threshold, the first analysis component (210) will send a bleeding confirmation signal to the control unit (300).

6. The system according to any one of claims 1 to 5, characterized in that: The analysis unit (200) compares the difference value of each acquired image with the difference value of the initial image, and when the pixel difference value of the two exceeds a set threshold for the first time, performs the following corresponding operations: If the above situation occurs in the second image, the second analysis component (220) will send a suspected redness and swelling signal to the second acquisition component (120). After receiving the suspected redness and swelling signal, the second acquisition component (120) will adjust the image acquisition frequency from the first frequency to the second frequency. If the pixel difference between the second image acquired at the second frequency and the pixel difference between the initial image still exceeds the threshold, the second analysis component (220) will send a confirmation redness and swelling signal to the control unit (300).

7. The system according to any one of claims 1 to 6, characterized in that: When a bleeding confirmation signal is received, the control unit (300) drives the adjustment component (410) of the pressing unit (400) to preliminarily adjust the pressure applied to the puncture point to temporarily stop bleeding by increasing the compression force, and the control unit (300) drives the early warning component (310) to send a bleeding warning signal.

8. The system according to any one of claims 1 to 7, characterized in that: When receiving the redness and swelling confirmation signal, the control unit (300) drives the early warning component (310) to send a redness and swelling warning signal.

9. A method for automatic detection and compression of groin puncture points, characterized in that: The method comprises: The first acquisition component (110) and the second acquisition component (120) respectively acquire initial images of the pressing plate (412) and the skin around the pressing plate (412) at the first time when the system is installed at the puncture point, and the first acquisition component (110) and the second acquisition component (120) acquire corresponding images at a first frequency in a subsequent period of time; The first analysis component (210) continuously receives the image acquired by the first acquisition component (110); The second analysis component (220) receives the image acquired by the second acquisition component (120); The first analysis component (210) and the second analysis component (220) respectively crop the received image, perform binarization processing and comparative analysis on the cropped image; The control unit (300) obtains the bleeding confirmation signal and / or the redness and swelling confirmation signal output by the first analysis component (210) and / or the second analysis component (220); When receiving the bleeding confirmation signal, the control unit (300) drives the adjustment component (410) of the pressing unit (400) to preliminarily adjust the pressure applied to the puncture point to temporarily stop bleeding by increasing the pressure, and the control unit (300) drives the early warning component (310) to send a bleeding warning signal; When receiving the redness and swelling confirmation signal, the control unit (300) drives the early warning component (310) to send a redness and swelling warning signal.

10. The method according to claim 9, characterized in that The method further comprises: The analysis unit (200) sends a suspected bleeding signal and / or a suspected redness and swelling signal to the acquisition unit (100). After receiving the suspected bleeding signal, the acquisition unit (100) acquires an image of the corresponding area at a second frequency that is faster than the first frequency, thereby speeding up the verification step and avoiding untimely initiation of hemostasis measures and early warning measures.

Images