Method and system for identifying treatment of chronic wounds

Abstract

The application provides a chronic wound treatment identification method and system, and relates to the technical field of data processing. The method comprises the following steps: obtaining a mapping area of a target wound of a target patient on a target support surface; obtaining attitude information of the target patient relative to the target support surface and determining a compression duration of the target wound under compression according to the attitude information; and generating a control instruction according to the compression duration and / or a wound recovery state of the target wound, wherein the control instruction is used to control the target support surface to locally release pressure on the mapping area. The application maps the position of the target wound to the target support surface, judges in combination with the attitude information and the compression duration, and generates a control instruction for local pressure release according to the wound recovery state and the compression duration, thereby realizing accurate identification and automatic pressure release control of the compression area of the chronic wound.

Description

Technical Field

[0001] This invention relates to data processing technology, and more particularly to a method and system for identifying and managing chronic wounds. Background Technology

[0002] Chronic wounds refer to skin and subcutaneous tissue injuries that cannot heal on their own through the normal healing process, and are commonly seen in patients who are bedridden for extended periods. Due to limited limb mobility, patients who are bedridden for long periods experience continuous pressure from their own weight and the supporting surface on specific body parts. This leads to prolonged blockage of blood microcirculation in the wound area, resulting in tissue hypoxia and ischemia, and hindering the natural healing process.

[0003] In existing technologies, timed turning or the use of anti-decubitus air mattresses are commonly used to relieve local pressure. However, existing technologies typically only control turning or inflation / deflation based on fixed time intervals, lacking real-time monitoring of the actual wound healing status. This makes it impossible to accurately determine whether the wound has worsened due to pressure, leading to a failure to address the wound in a timely manner when it has already worsened, or unnecessary frequent operations when the wound is healing well, making it difficult to achieve targeted wound care.

[0004] Therefore, how to accurately identify and automatically control the pressure relief area corresponding to chronic wounds based on the wound recovery status and duration of pressure application has become a key issue that urgently needs to be addressed. Summary of the Invention

[0005] This invention provides a method and system for identifying and managing chronic wounds, which can accurately identify and automatically control the pressure relief area corresponding to chronic wounds based on the wound recovery status and duration of pressure application.

[0006] A first aspect of the present invention provides a method for identifying and managing chronic wounds, comprising: Obtain the mapping area of ​​the target patient's target wound on the target support surface; Obtain the current posture information of the target patient relative to the target support surface, and determine the compression duration of the target wound based on the posture information; Based on the compression duration and / or the wound recovery status of the target wound, a control command is generated, which is used to control the target support surface to locally relieve pressure in the mapped area.

[0007] Optionally, in one possible implementation of the first aspect, obtaining the mapping region of the target wound of the target patient on the target support surface includes: Construct a human twin model corresponding to the target patient; Obtain the first location information of the target wound in the human twin model; Based on the current posture information of the target patient relative to the target support surface, the first position information is mapped to the target support surface to obtain a mapping area.

[0008] Optionally, in one possible implementation of the first aspect, obtaining the current posture information of the target patient relative to the target support surface, and determining the compression duration of the target wound based on the posture information, includes: Images containing the pose of the target patient are acquired at preset time intervals; The image is subjected to pose recognition to obtain the pose information, which includes lying flat, lying on the left side, or lying on the right side; Based on the continuous posture information, the duration of the target wound being under pressure is accumulated as the pressure duration.

[0009] Optionally, in one possible implementation of the first aspect, generating control instructions based on the compression duration and / or the wound recovery state of the target wound includes: According to preset time nodes, acquire wound images of the target wound to obtain a wound image sequence; Determine whether the compression duration exceeds a preset compression duration; if the compression duration exceeds the preset compression duration; and / or, The trend of change in the wound images in the wound image sequence is determined to be a deterioration result; Generate control commands to control the target support surface to perform local pressure relief in the mapped area.

[0010] Optionally, in one possible implementation of the first aspect, determining that the trend of change in the wound images in the wound image sequence is a deterioration result includes: The wound images in the wound image sequence are numbered sequentially to obtain the acquisition number sequence of the wound image sequence; The wound regions in the wound image sequence are identified sequentially, and the area of ​​each wound region is obtained. The wound images are sorted in descending order based on the area of ​​the region to obtain a wound recovery sequence, and the numbers of the wound images in the wound recovery sequence are obtained sequentially to obtain a recovery number sequence. The number of discrepancies in the collected number sequence and the recovered number sequence are compared to obtain the number of discrepancies in the number sequence. When the number of differences is determined to be greater than a preset number, a deterioration result is generated.

[0011] Optionally, in one possible implementation of the first aspect, the generation control instructions include: The mapped area is used as the target pressure relief area on the target support surface; If the area of ​​the target pressure relief region exceeds the preset support area, then a set of pressure relief sub-regions is determined based on the target pressure relief region; Generate control commands to control the target support surface to alternately depressurize the depressurization units in the depressurization sub-region set in a preset alternating pattern.

[0012] Optionally, in one possible implementation of the first aspect, determining the set of pressure relief sub-regions based on the target pressure relief region includes: Based on the target pressure relief area, multiple alternating units are determined; Based on the spatial distribution relationship of the multiple alternating units, the set of pressure relief sub-regions is determined.

[0013] Optionally, in one possible implementation of the first aspect, determining a plurality of alternating units based on the target depressurization area includes: Acquire multiple pressure relief units at the target support surface; Determine the pressure relief units that intersect with the target pressure relief area as alternating units.

[0014] Optionally, in one possible implementation of the first aspect, determining the set of pressure relief sub-regions based on the spatial distribution relationship of the plurality of alternating units includes: By combining alternating units, a combined region is obtained; When the combined region is determined to be rectangular, two alternating units that are symmetrically distributed based on the center point of the combined region are used to obtain a set of pressure relief sub-regions. When the combined region is determined to be non-rectangular, the corresponding combined region is regarded as an irregular region, and the completed rectangle is obtained based on the coordinate extreme values ​​of the irregular region. Based on the statistically symmetrical distribution of two pressure relief units at the center point of the completed rectangle, multiple selection sub-region sets are obtained; When it is determined that all selected sub-region sets are alternating units, the corresponding selected sub-region set is taken as the pressure relief sub-region set, and the remaining selected sub-region sets are taken as the non-alternating sub-region set. The alternating units in the set of non-alternating sub-regions are taken as the first unit, and the remaining pressure relief units in the set of non-alternating sub-regions are taken as the second unit. The first unit is controlled to depressurize, and the second unit is controlled to pressurize.

[0015] A second aspect of the present invention provides a system for identifying and treating chronic wounds, comprising: The identification module is used to obtain the mapping area of ​​the target wound of the target patient on the target support surface; The determination module is used to acquire the current posture information of the target patient relative to the target support surface, and determine the compression duration of the target wound based on the posture information; The control module is used to generate control commands based on the compression duration and / or the wound recovery status of the target wound. The control commands are used to control the target support surface to locally relieve pressure on the mapped area.

[0016] The beneficial effects of this invention are as follows: 1. This invention obtains the mapping area of ​​the target wound on a target support surface from the target patient, and acquires the current posture information of the target patient relative to the target support surface. Based on the posture information, it determines the compression duration of the target wound, and generates control commands for controlling the target support surface to locally relieve pressure on the mapping area based on the compression duration and / or the wound recovery state. This invention incorporates changes in patient posture into the calculation of compression duration, avoiding the deficiency of existing technologies that cannot clearly determine the actual pressure state of the wound under fixed-time interval pressure relief methods, and realizing dynamic identification and automated pressure relief control of the pressure area of ​​chronic wounds.

[0017] 2. This invention constructs a human twin model corresponding to the target patient, obtains the first position information of the target wound in the human twin model, and maps the first position information to the target support surface to obtain the mapping area. This achieves dynamic transformation of the target wound from the human coordinate system to the target support surface coordinate system under different postures. This invention acquires images containing the target patient's posture at preset time intervals and performs posture recognition. Based on continuous posture information, the duration of pressure on the target wound is accumulated as the compression duration. This achieves dynamic accumulation of the compression duration of the target wound based on real-time posture changes, avoiding the problem in existing technologies that only rely on fixed turning cycles for pressure relief while ignoring the patient's actual posture.

[0018] 3. This invention acquires wound images of the target wound according to preset time nodes to obtain a wound image sequence. The wound images in the sequence are sequentially numbered to obtain an acquisition number sequence. The area of ​​the wound region is identified and sorted in descending order based on the area to obtain a recovery number sequence. The acquisition number sequence and the recovery number sequence are compared to obtain the number of differences. When the number of differences exceeds a preset number, a deterioration result is generated. This allows for the judgment of the wound recovery status of the target patient based on the trend of wound area changes. This invention uses the mapped area as the target pressure relief area. When the area of ​​the target pressure relief area exceeds a preset support area, a set of pressure relief sub-regions is determined, and control commands are generated to alternately relieve pressure on the pressure relief units in an alternating mode. This ensures the wound decompression effect while avoiding patient discomfort caused by local loss of support on the support surface. Attached Figure Description

[0019] Figure 1 A flowchart of a method for identifying and treating chronic wounds provided by the present invention; Figure 2 This is a schematic diagram of the target pressure relief region and alternating units in this invention; Figure 3 This is a schematic diagram of the structure of the pressure relief sub-region set in this invention; Figure 4 A schematic diagram of the structure of a chronic wound treatment and identification system provided by the present invention; Figure 5 This is a schematic diagram of the hardware structure of an electronic device provided by the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein.

[0022] It should be understood that in the various embodiments of the present invention, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0023] It should be understood that in this invention, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0024] It should be understood that in this invention, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains A, B, and C", "Contains A, B, and C" means that all three A, B, and C are contained; "Contains A, B, or C" means that one of A, B, and C is contained; "Contains A, B, and / or C" means that any one, two, or three of A, B, and C are contained.

[0025] It should be understood that in this invention, "B corresponding to A", "B corresponding to A", "A and B correspond", or "B and A correspond" means that B is associated with A, and B can be determined based on A. Determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information. Matching A and B is defined as a similarity between A and B that is greater than or equal to a preset threshold.

[0026] Depending on the context, "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection."

[0027] The technical solution of the present invention will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0028] This invention provides a method for identifying and managing chronic wounds, such as... Figure 1 As shown, it includes: S1, Obtain the mapping area of ​​the target wound of the target patient on the target support surface.

[0029] It's important to note that when a patient who is bedridden for an extended period lies on an anti-decubitus air mattress, the area of ​​their body containing a chronic wound will be in continuous pressure contact with the mattress surface. However, since the chronic wound is on the body, and decompression operations need to be performed on the air cushion units, it's impossible to decompress the corresponding air cushion unit if the location of the chronic wound on the mattress surface is unknown. This step maps the target wound on the patient onto the target support surface, creating a mapped area so that subsequent decompression operations can be applied to the air cushion unit on the mattress corresponding to the target wound.

[0030] Among them, the target patient refers to a patient with chronic wounds on the body surface; the target wound refers to a chronic wound on the target patient's body that requires targeted care; the target support surface refers to the surface of a carrier that is in direct contact with the target patient's body and bears the weight of the target patient, and the carrier can be an anti-decubitus air cushion; the mapping area refers to the area on the target support surface that the target wound is mapped onto.

[0031] In some embodiments, step S1 (obtaining the mapping area of ​​the target wound on the target support surface of the target patient) includes S11-S13: S11, Construct a human twin model corresponding to the target patient.

[0032] It should be noted that each target patient has a different body shape and the specific location of the chronic wound on the body surface is also different. Therefore, this step involves constructing a human twin model that matches the body shape of each target patient.

[0033] Understandably, a human twin model is a 3D digital model that matches the body dimensions of a target patient. The process of constructing a human twin model can be as follows: First, the body shape parameters of the target patient are collected, including height, shoulder width, bone joints, and the length of each limb. These parameters can be obtained by a full-body scan of the target patient using a camera mounted above the target support surface. Next, a pre-stored standard human body model is retrieved. This standard human body model is a standard template with adjustable height, shoulder width, bone joints, and limb lengths. The collected body shape parameters of the target patient are input into the standard human body model. The standard human body model automatically adjusts its height, shoulder width, bone joints, and limb lengths according to the input body shape parameters, so that the adjusted model matches the body dimensions of the target patient. This adjusted model is then used as the human twin model corresponding to that target patient.

[0034] S12, Obtain the first location information of the target wound in the human twin model.

[0035] Understandably, after the human twin model is constructed, the region corresponding to the target wound on the human twin model is located, and the coordinate data of the corresponding region obtained from the location is used as the first location information of the target wound.

[0036] The first location information refers to the coordinate data of the target wound in the human twin model coordinate system.

[0037] S13, based on the current posture information of the target patient relative to the target support surface, the first position information is mapped to the target support surface to obtain a mapping area.

[0038] It should be noted that the same target wound will be projected onto the target support surface differently when the patient is lying flat or on their side. This step combines posture information to map the wound location in the human twin model onto the target support surface according to the patient's current posture.

[0039] Understandably, the process involves acquiring the target patient's current posture information relative to the target support surface. Posture information refers to the target patient's current lying position, including supine, left lateral, or right lateral decubitus. Based on this posture information, the human twin model's posture is adjusted to match the target patient's current posture. Next, the initial position information is mapped onto the target support surface to obtain the mapped area.

[0040] S2, obtain the current posture information of the target patient relative to the target support surface, and determine the compression duration of the target wound based on the posture information.

[0041] It's important to note that the healing of the target wound is affected by continuous pressure. The longer the target wound is compressed, the deeper the blood circulation in the local tissues is blocked, and the more difficult the wound healing becomes. However, not all the time the patient lies on the target support surface is considered time when the target wound is under pressure. For example, when the patient changes from lying flat to lying on their side, the previously compressed back wound may be released from contact with the target support surface and is no longer under pressure. This step obtains the patient's posture information, determines whether the target wound is under pressure in the current posture, and accumulates the duration of pressure on the target wound.

[0042] The compression duration refers to the cumulative time that the target wound remains under compression in its current position.

[0043] In some embodiments, step S2 (obtaining the current posture information of the target patient relative to the target support surface, and determining the compression duration of the target wound based on the posture information) includes S21-S23: S21, Acquire images containing the pose of the target patient at preset time intervals.

[0044] Understandably, images of the target patient are captured by pre-deployed image acquisition devices at preset time intervals (e.g., every 5 seconds), and the posture of the target patient is obtained through the captured images.

[0045] The preset time interval refers to the time period that is set in advance to control the image acquisition frequency.

[0046] S22, perform pose recognition on the image to obtain the pose information, which includes lying flat, lying on the left side, or lying on the right side.

[0047] Understandably, the image acquired in step S21 is identified, specifically the orientation of the target patient's chest in the image. Based on the orientation of the chest, the target patient's posture information is determined. The posture information includes three states: supine, left lateral decubitus, or right lateral decubitus. For example, if the chest is facing left, the posture information is left lateral decubitus; if the chest is facing upward, the posture information is supine; and if the chest is facing right, the posture information is right lateral decubitus.

[0048] S23, based on the continuous posture information, the duration of the target wound being under pressure is accumulated as the pressure duration.

[0049] It should be noted that not all postures will result in pressure on the target wound. This step, based on continuously acquired posture information, determines whether the target wound is under pressure at each time interval and accumulates the time spent under pressure to obtain the pressure duration. When a change in posture causes the target wound to escape the pressure state, the pressure duration is reset to zero; when the posture changes again and the target wound re-enters the pressure state, the pressure duration is restarted from zero.

[0050] It is understandable that if multiple consecutive frames of images show the target patient corresponding to the same posture information, and the target wound is in contact with the target support surface under this posture information, then the target wound is determined to be in a state of continuous compression, and the duration corresponding to these multiple frames of images is taken as the compression duration.

[0051] S3, based on the compression duration and / or the wound recovery status of the target wound, generate a control command, which is used to control the target support surface to locally relieve pressure on the mapped area.

[0052] It should be noted that if only the duration of pressure is considered without taking into account the wound's healing status, situations may arise where the wound is already deteriorating but pressure is not released in time because the pressure duration has not yet reached the threshold. Furthermore, if only the wound's healing status is considered without considering the duration of pressure, dangerous situations may be missed where the wound, though not yet deteriorated, has been subjected to prolonged pressure. This step assesses both the duration of pressure and the wound's healing status. When either or both of these conditions are met, a control command is generated, which then locally releases pressure on the mapped area corresponding to the target wound on the target support surface.

[0053] Among them, the wound recovery status refers to the healing trend of the target wound over a period of time; the control command refers to the control signal used to control the local pressure relief operation of the mapped area on the target support surface; local pressure relief means releasing air pressure only to the airbag corresponding to the mapped area to cause it to collapse, thereby reducing the pressure of the mapped area on the target wound.

[0054] In some embodiments, step S3 (generating control instructions based on the compression duration and / or the wound recovery status of the target wound) includes S31-S34: S31. According to the preset time nodes, acquire the wound image of the target wound to obtain the wound image sequence.

[0055] It should be noted that a single wound image cannot determine the recovery trend of the target wound, because the healing or deterioration of the target wound is a process. Wound images need to be collected at multiple time points and compared to identify whether the area of ​​the target wound is shrinking or expanding.

[0056] Understandably, an image acquisition device for the target wound is deployed near the target support surface. This device acquires images of the target wound at preset time points. The wound images acquired at each preset time point are arranged in chronological order to obtain a wound image sequence.

[0057] Among them, the preset time node refers to the time point set in advance for the acquisition of wound images; the wound image refers to the image obtained by acquiring images of the target wound; the wound image sequence refers to an ordered sequence of multiple wound images arranged in the order of acquisition time.

[0058] S32, determine whether the compression duration exceeds a preset compression duration; if the compression duration exceeds the preset compression duration; and / or, Understandably, the compression duration is compared numerically with a preset compression duration to determine if the current compression duration has exceeded the preset duration. If the compression duration exceeds the preset duration, a control command is generated; if the compression duration does not exceed the preset duration, the generation of a control command is determined based on the wound recovery status displayed in the wound image sequence.

[0059] S33, determine the trend of change in the wound images in the wound image sequence as a deterioration result; It should be noted that when the compression duration does not exceed the preset compression duration, it is necessary to further assess the actual trend of the target wound. If the target wound area shows an expanding trend during continuous compression, it indicates that the compression is exacerbating the deterioration of the target wound, and pressure relief must be implemented immediately. This step determines whether the trend indicates a worsening outcome by analyzing the changes in the target wound area in the wound image sequence.

[0060] In some embodiments, step S33 (determining the trend of change in the wound images in the wound image sequence as a deterioration result) includes S331-S335: S331, The wound images in the wound image sequence are numbered sequentially to obtain the acquisition number sequence of the wound image sequence.

[0061] Understandably, the wound images are numbered sequentially starting from the first image in the wound image sequence, and these numbers are arranged in order to form the acquisition number sequence.

[0062] The acquisition number sequence refers to the numbering sequence formed by sequentially numbering the wound images according to their chronological order in the wound image sequence.

[0063] S332, sequentially identify the wound regions of the wound images in the wound image sequence, and obtain the area of ​​the wound regions.

[0064] Understandably, each wound image in the wound image sequence is read sequentially, the outline boundary of the target wound in the wound image is identified, the area enclosed by the outline boundary is determined as the wound area, and the area of ​​the wound area is obtained.

[0065] Among them, the wound area refers to the area occupied by the target wound identified in the wound image; the area refers to the size of the wound area.

[0066] S333, sort the wound images in descending order based on the area of ​​the region to obtain a wound recovery sequence, and sequentially obtain the numbers of the wound images in the wound recovery sequence to obtain a recovery number sequence.

[0067] It should be noted that the area of ​​a normally healing target wound should gradually decrease over time. If all wound images are arranged in descending order of area, under normal healing conditions, the image of the wound with the largest area should be the earliest acquired, and the image of the wound with the smallest area should be the latest acquired. In other words, the numbering order after sorting by area in descending order should be consistent with the numbering order of acquisition time.

[0068] Understandably, all wound images in the wound image sequence are sorted in descending order of their respective area (i.e., the largest area is placed first, and the smallest area is placed last). The sorted sequence is the wound recovery sequence. Next, according to the order of the wound images in the wound recovery sequence, the number assigned to each wound image in step S331 is read sequentially to form a recovery number sequence. For example, if the acquisition number sequence of 5 wound images is 1, 2, 3, 4, 5, and the descending order of the area numbers is 1, 3, 2, 4, 5, then the recovery number sequence is 1, 3, 2, 4, 5.

[0069] Among them, the wound recovery sequence refers to the sequence formed by sorting the wound images in the wound image sequence in descending order of area; the recovery number sequence refers to the number sequence formed by extracting the numbers of each wound image in the order of arrangement of the wound images in the wound recovery sequence.

[0070] S334, compare the collected number sequence and the recovered number sequence to obtain the number of discrepancies in the numbering.

[0071] Understandably, the collected number sequence and the recovered number sequence are compared digit by digit, and the number of digits that do not match at the same position is counted, i.e., the number of differences. For example, if the collected number sequence is 1, 2, 3, 4, 5, and the recovered number sequence is 1, 3, 2, 4, 5, then the second and third digits do not match, and the number of differences is 2.

[0072] The number of differences refers to the total number of instances where the collected number sequence and the recovered number sequence are inconsistent in the same position.

[0073] S335, when it is determined that the number of differences is greater than a preset number, a deterioration result is generated.

[0074] It should be noted that the larger the number of discrepancies, the more severely the actual trend of the target wound area deviates from the expected trend of normal healing. In other words, the target wound has not shrunk as expected, but has instead experienced repeated fluctuations or even expansion. When the number of discrepancies exceeds the preset number, it can be determined that the trend of the target wound has deviated from the normal healing trend, resulting in a worsening outcome.

[0075] It is easy to understand that the difference count obtained in step S334 is compared with the preset number, and when the difference count is greater than the preset number, the trend of change of the wound image in the wound image sequence is determined to be a deterioration result.

[0076] Among them, the preset quantity refers to the threshold of the difference quantity used to judge whether the trend of the target wound is deteriorating; the deterioration result refers to the judgment result that the target wound is in a deteriorating state after comparison and judgment.

[0077] S34, generate control instructions for controlling the target support surface to perform local pressure relief in the mapped area.

[0078] Understandably, after determining that the trend of change in the wound image indicates a deterioration, control instructions are generated. Based on these instructions, airbags corresponding to the mapped area on the target support surface are identified, and these airbags are controlled to release air pressure to relieve pressure.

[0079] In some embodiments, step S3 (generating control instructions) includes S35-S37: S35, the mapped area is used as the target pressure relief area on the target support surface.

[0080] It is understandable that the mapped area is the area on the target support surface where the pressure relief operation needs to be performed, i.e., the target pressure relief area.

[0081] The target depressurization area refers to the area on the target support surface that corresponds to the mapped area and requires depressurization.

[0082] S36, if the area of ​​the target pressure relief region exceeds the preset support area, then a set of pressure relief sub-regions is determined based on the target pressure relief region.

[0083] It should be noted that when the target decompression area is small, decompressing all the airbag units within that area will not affect the patient's balance. However, when the target decompression area exceeds the preset support area, simultaneously decompressing all airbag units within that area will cause the patient to lose support, leading to discomfort and potentially injury due to a sudden shift in the patient's center of gravity. This step, when the target decompression area exceeds the preset support area, divides the target decompression area into multiple decompression sub-areas and decompresses the airbag units alternately while maintaining partial airbag support.

[0084] Understandably, the area of ​​the target pressure relief region is calculated and compared with a pre-set support area. When the area of ​​the target pressure relief region exceeds the pre-set support area, the target pressure relief region is divided into a set of pressure relief sub-regions.

[0085] The preset support area refers to the pre-set area threshold used to determine whether the target pressure relief area needs to be divided into zones.

[0086] In some embodiments, step S36 (determining the set of pressure relief sub-regions based on the target pressure relief region) includes S361-S362: S361, Based on the target pressure relief area, determine multiple alternating units.

[0087] It is understandable that, such as Figure 2 As shown, based on the range covered by the target pressure relief area on the target support surface, pressure relief units that intersect with the spatial position of the target pressure relief area are selected from the pressure relief unit array of the target support surface, and these pressure relief units are used as alternating units.

[0088] Among them, the alternating unit refers to the pressure relief unit that is selected within the target pressure relief area and needs to be alternately pressure relieved.

[0089] In some embodiments, step S361 (determining multiple alternating units based on the target pressure relief area) includes S3611-S3612: S3611, acquire multiple pressure relief units at the target support surface.

[0090] Understandably, the configuration information corresponding to the target support surface is extracted to obtain all the pressure relief units on the target support surface. Multiple airbag units, each with independently controllable inflation and deflation states, are arranged in an array on the target support surface; each airbag unit is a pressure relief unit.

[0091] S3612, Determine the pressure relief unit that intersects with the target pressure relief area as the alternation unit.

[0092] Understandably, the target pressure relief area is compared with each pressure relief unit, and pressure relief units that intersect with the target pressure relief area are selected and these pressure relief units are used as alternating units.

[0093] S362, determine the set of pressure relief sub-regions based on the spatial distribution relationship of the multiple alternating units.

[0094] It is understandable that these alternating units are grouped and paired according to their spatial distribution on the target support surface.

[0095] Among them, spatial distribution relationship refers to the arrangement shape and relative position of alternating units on the target support surface.

[0096] In some embodiments, step S362 (determining the set of pressure relief sub-regions based on the spatial distribution relationship of the plurality of alternating units) includes S3621-S3627: S3621, combine the alternating units to obtain the combined region.

[0097] It is understandable that all the alternating units obtained in step S3612 are merged to obtain a whole region, i.e., a combined region.

[0098] The combined area refers to the overall area formed by merging all alternating units on the target support surface.

[0099] S3622, when the combined region is determined to be rectangular, two alternating units that are statistically symmetrically distributed based on the center point of the combined region are used to obtain a set of pressure relief sub-regions.

[0100] It should be noted that when the combined regions are arranged in a regular rectangular pattern, the two alternating units that are symmetrically distributed about the center point can be paired based on the central symmetry of the rectangle to obtain a set of pressure relief sub-regions.

[0101] It is understandable that, such as Figure 3As shown, when the combined region is determined to be rectangular, the coordinates of the geometric center point of the combined region are calculated. All alternating units within the combined region are traversed, and two alternating units that are symmetrically distributed about the center point are paired together. Each pair constitutes a pressure relief sub-region set. When one is depressurized, the other is pressurized, thereby ensuring the patient's body balance during the pressure relief process.

[0102] S3623, when the combined region is determined to be non-rectangular, the corresponding combined region is taken as an irregular region, and a complete rectangle is obtained based on the coordinate extreme values ​​of the irregular region.

[0103] It should be noted that when the shape of the combined region is irregular, the central symmetry of the rectangle cannot be directly used to pair and group the alternating units. This step constructs a minimum bounding rectangle that can enclose the irregular region by extracting the extreme coordinate values ​​of the irregular region, i.e., the filling rectangle.

[0104] It is understandable that when the combined region is not rectangular, the corresponding combined region is treated as an irregular region. The extreme values ​​of the coordinates of the irregular region are extracted, and a complete rectangle that fully surrounds the irregular region is constructed.

[0105] Among them, the irregular region refers to a combination region whose shape is not rectangular; the filling rectangle refers to the smallest bounding rectangle that can completely enclose the irregular region, constructed based on the coordinate extreme values ​​of the irregular region.

[0106] S3624, based on the statistically symmetrical distribution of two pressure relief units at the center point of the filling rectangle, a set of multiple selection sub-regions is obtained.

[0107] Understandably, the coordinates of the center point of the filling rectangle are calculated, and among all the pressure relief units within the coverage area of ​​the filling rectangle, two pressure relief units that are symmetrically distributed about the center point are paired together to obtain multiple selection sub-region sets.

[0108] Among them, the selection of sub-region set refers to the combination of pressure relief units obtained by pairing them based on the central symmetry relationship within the completed rectangle.

[0109] S3625, when it is determined that all selected sub-region sets are alternating units, the corresponding selected sub-region set is taken as the pressure relief sub-region set, and the remaining selected sub-region sets are taken as the non-alternating sub-region set.

[0110] It should be noted that since the range of the filling rectangle is larger than the range of the irregular region, there may be pressure relief units within the filling rectangle that are not alternating units. When both paired pressure relief units in a selection sub-region set are alternating units, it means that this pair of pressure relief units both fall within the target pressure relief region and can directly participate in alternating pressure relief; therefore, it is considered a pressure relief sub-region set. When there is a non-alternating unit among the paired pressure relief units, it means that at least one pressure relief unit is not within the target pressure relief region; this is considered a non-alternating sub-region set.

[0111] Understandably, each selection sub-region set is traversed, and it is checked whether the two paired pressure relief units are both alternating units. If they are both alternating units, then the selection sub-region set is taken as the pressure relief sub-region set; if there are non-alternating units, then the selection sub-region set is taken as the non-alternating sub-region set.

[0112] Among them, the non-alternating sub-region set refers to the selection sub-region set where the paired pressure relief units are not all alternating units.

[0113] S3626, the alternating unit in the non-alternating sub-region set is taken as the first unit, and the remaining pressure relief unit in the non-alternating sub-region set is taken as the second unit.

[0114] It is understandable that in the set of non-alternating subregions, the alternating unit is regarded as the first unit, and the remaining pressure relief unit is regarded as the second unit.

[0115] S3627 controls the first unit to depressurize and controls the second unit to pressurize.

[0116] It should be noted that the first unit in the non-alternating sub-region set is located within the target decompression area and requires decompression protection of the wound. The second unit, however, is not within the target decompression area and does not require decompression; it should remain pressurized to maintain support for the patient. Since the first and second units cannot alternate decompression in a symmetrical pairing manner, the first unit is directly controlled to decompress, while the second unit is controlled to maintain pressurization.

[0117] It is understandable that a control command is sent to the control system of the target support surface to control the airbag corresponding to the first unit to release air pressure and cause it to collapse into a depressurization state, while controlling the airbag corresponding to the second unit to maintain an inflated support state.

[0118] S37, generate control instructions for controlling the target support surface to alternately depressurize the depressurization units in the depressurization sub-region set in a preset alternating pattern.

[0119] Understandably, a control command is generated, specifying that the target support surface performs alternating depressurization on each depressurization unit in the depressurization sub-region set according to a preset alternating pattern. The alternating pattern means that at any given time, only some depressurization units in the depressurization sub-region set are in a depressurized state, while the remaining depressurization units remain in a pressurized support state. Depressurization and pressurization are exchanged according to a preset time cycle. For example, if two units in each depressurization sub-region set are labeled as Unit A and Unit B, and the control cycle is 10 minutes, in each cycle, for the first 5 minutes, the airbag containing control unit A depressurizes, reducing its internal pressure to 5 kPa, while Unit B remains pressurized at 15 kPa; for the next 5 minutes, control unit B depressurizes to 5 kPa, while Unit A repressurizes to 15 kPa, and this cycle repeats.

[0120] The alternating mode refers to the working mode in which each pressure relief unit in the pressure relief sub-region takes turns to relieve and inflate pressure according to a preset time cycle; the pressure relief unit refers to the smallest airbag unit on the anti-bedsore air cushion that can be independently controlled to inflate or deflate.

[0121] See Figure 4 This is a schematic diagram of a chronic wound treatment and identification system provided in an embodiment of the present invention. The system includes: The identification module is used to obtain the mapping area of ​​the target wound of the target patient on the target support surface; The determination module is used to acquire the current posture information of the target patient relative to the target support surface, and determine the compression duration of the target wound based on the posture information; The control module is used to generate control commands based on the compression duration and / or the wound recovery status of the target wound. The control commands are used to control the target support surface to locally relieve pressure on the mapped area.

[0122] See Figure 5 This is a schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present invention. The electronic device 50 includes: a processor 51, a memory 52, and a computer program; wherein... The memory 52 is used to store the computer program, and the memory may also be flash memory. The computer program is, for example, an application program or functional module that implements the above method.

[0123] The processor 51 is configured to execute the computer program stored in the memory to implement the various steps performed by the device in the above method. For details, please refer to the relevant descriptions in the preceding method embodiments.

[0124] Alternatively, the memory 52 can be either standalone or integrated with the processor 51.

[0125] When the memory 52 is a device independent of the processor 51, the device may further include: Bus 53 is used to connect the memory 52 and the processor 51.

[0126] The present invention also provides a readable storage medium storing a computer program, which, when executed by a processor, is used to implement the methods provided in the various embodiments described above.

[0127] The readable storage medium can be a computer storage medium or a communication medium. A communication medium includes any medium that facilitates the transfer of computer programs from one location to another. A computer storage medium can be any available medium accessible to a general-purpose or special-purpose computer. For example, a readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application-Specific Integrated Circuit (ASIC). Alternatively, the ASIC can be located in a user equipment. Of course, the processor and the readable storage medium can also exist as discrete components in a communication device. The readable storage medium can be a read-only memory (ROM), random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0128] The present invention also provides a program product including executable instructions stored in a readable storage medium. At least one processor of the device can read the executable instructions from the readable storage medium, and the at least one processor executes the executable instructions to cause the device to implement the methods provided in the various embodiments described above.

[0129] In the embodiments of the above-described device, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly manifested as execution by a hardware processor, or execution by a combination of hardware and software modules within the processor.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for identifying and managing chronic wounds, characterized in that, include: Obtain the mapping area of ​​the target wound on the target support surface of the target patient; Obtain the current posture information of the target patient relative to the target support surface, and determine the compression duration of the target wound based on the posture information; Based on the compression duration and / or the wound recovery status of the target wound, a control command is generated, which is used to control the target support surface to locally relieve pressure in the mapped area.

2. The method according to claim 1, characterized in that, The process of obtaining the mapping region of the target patient's target wound on the target support surface includes: Construct a human twin model corresponding to the target patient; Obtain the first location information of the target wound in the human twin model; Based on the current posture information of the target patient relative to the target support surface, the first position information is mapped to the target support surface to obtain a mapping area.

3. The method according to claim 1, characterized in that, The step of obtaining the current posture information of the target patient relative to the target support surface, and determining the compression duration of the target wound based on the posture information, includes: Images containing the pose of the target patient are acquired at preset time intervals; The image is subjected to pose recognition to obtain the pose information, which includes lying flat, lying on the left side, or lying on the right side; Based on the continuous posture information, the duration of the target wound being under pressure is accumulated as the pressure duration.

4. The method according to claim 1, characterized in that, The step of generating control commands based on the compression duration and / or the wound recovery status of the target wound includes: According to preset time nodes, acquire wound images of the target wound to obtain a wound image sequence; Determine whether the compression duration exceeds a preset compression duration; if the compression duration exceeds the preset compression duration; and / or, The trend of change in the wound images in the wound image sequence is determined to be a deterioration result; Generate control commands to control the target support surface to perform local pressure relief in the mapped area.

5. The method according to claim 4, characterized in that, Determining the trend of change in the wound images within the wound image sequence as a deterioration result includes: The wound images in the wound image sequence are numbered sequentially to obtain the acquisition number sequence of the wound image sequence; The wound regions in the wound image sequence are identified sequentially, and the area of ​​each wound region is obtained. The wound images are sorted in descending order based on the area of ​​the region to obtain a wound recovery sequence, and the numbers of the wound images in the wound recovery sequence are obtained sequentially to obtain a recovery number sequence. The number of discrepancies in the collected number sequence and the recovered number sequence are compared to obtain the number of discrepancies in the number sequence. When the number of differences is determined to be greater than a preset number, a deterioration result is generated.

6. The method according to claim 1, characterized in that, The generation control instructions include: The mapped area is used as the target pressure relief area on the target support surface; If the area of ​​the target pressure relief region exceeds the preset support area, then a set of pressure relief sub-regions is determined based on the target pressure relief region; Generate control commands to control the target support surface to alternately depressurize the depressurization units in the depressurization sub-region set in a preset alternating pattern.

7. The method according to claim 6, characterized in that, The step of determining the set of pressure relief sub-regions based on the target pressure relief region includes: Based on the target pressure relief area, multiple alternating units are determined; Based on the spatial distribution relationship of the multiple alternating units, the set of pressure relief sub-regions is determined.

8. The method according to claim 7, characterized in that, Based on the target pressure relief area, multiple alternating units are determined, including: Acquire multiple pressure relief units at the target support surface; Determine the pressure relief units that intersect with the target pressure relief area as alternating units.

9. The method according to claim 8, characterized in that, The step of determining the set of pressure relief sub-regions based on the spatial distribution relationship of the multiple alternating units includes: By combining alternating units, a combined region is obtained; When the combined region is determined to be rectangular, two alternating units that are symmetrically distributed based on the center point of the combined region are used to obtain a set of pressure relief sub-regions. When the combined region is determined to be non-rectangular, the corresponding combined region is regarded as an irregular region, and the completed rectangle is obtained based on the coordinate extreme values ​​of the irregular region. Based on the statistically symmetrical distribution of two pressure relief units at the center point of the completed rectangle, multiple selection sub-region sets are obtained; When it is determined that all selected sub-region sets are alternating units, the corresponding selected sub-region set is taken as the pressure relief sub-region set, and the remaining selected sub-region sets are taken as the non-alternating sub-region set. The alternating units in the set of non-alternating sub-regions are taken as the first unit, and the remaining pressure relief units in the set of non-alternating sub-regions are taken as the second unit. The first unit is controlled to depressurize, and the second unit is controlled to pressurize.

10. A system for identifying and treating chronic wounds, characterized in that, include: The identification module is used to obtain the mapping area of ​​the target wound of the target patient on the target support surface; The determination module is used to acquire the current posture information of the target patient relative to the target support surface, and determine the compression duration of the target wound based on the posture information; The control module is used to generate control commands based on the compression duration and / or the wound recovery status of the target wound. The control commands are used to control the target support surface to locally relieve pressure on the mapped area.

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