Medical nursing baking lamp and baking lamp irradiation area control method

Abstract

The invention relates to a medical nursing baking lamp irradiation area control method comprising the following steps: a doctor input step: inputting preset affected limb information by a doctor; an image acquisition and analysis step: acquiring an affected limb image, matching the acquired affected limb image with the established sample library to determine affected limb type information, and comparing the determined affected limb type information with preset affected limb information input by a doctor to analyze the reliability of the affected limb type information; determining an initial irradiation area: determining the initial irradiation area according to the type information of the affected limb; in the irradiation area correction step, an irradiation area correction model is established by utilizing a deviation area between the adjusted irradiation area and the initial irradiation area and external influence parameters, and a corrected irradiation area is output; in the baking lamp irradiation starting step, the output correction irradiation area serves as an input irradiation area for controlling the baking lamp, the automatic accurate control over the irradiation area of the baking lamp is achieved, the method adapts to the displacement of the diseased limb or the swelling change condition of the diseased limb in the irradiation period, and the dynamic adjustment requirement is met.

Description

[0001] TECHNICAL FIELD The present application relates to the technical field of medical devices, in particular to a medical nursing baking lamp and a baking lamp irradiation area control method. BACKGROUND

[0002] Replantation of severed fingers and vascular transplantation is the core repair surgery for limb amputation and vascular injury in orthopedics and hand surgery. The patency of the transplanted blood vessels after surgery is the key to success or failure of the surgery, and vasospasm of the transplanted blood vessels is the most important risk factor after surgery. Its mechanism is closely related to the physiological characteristics of vascular smooth muscle. The smooth muscle cells of the transplanted blood vessels are extremely sensitive to stimuli such as temperature, pain, and stress. A low-temperature environment can directly activate the calcium channels on the cell membrane of the smooth muscle cells, causing a large influx of extracellular calcium ions, triggering smooth muscle contraction. Especially for small arteries or small veins with a diameter less than 2mm, when the contraction amplitude exceeds 50% of the blood vessel lumen radius, it will cause a significant decrease in blood flow velocity. If it lasts for more than 30 minutes, it will cause ischemia and hypoxia of the transplanted tissue, and metabolic disorders of endothelial cells due to hypoxia, thereby triggering endothelial cell apoptosis. At the same time, ischemia can stimulate platelet aggregation to form microthrombosis, ultimately leading to complete interruption of blood flow. The replanted tissue will undergo irreversible necrosis after 6-8 hours of ischemia. Therefore, maintaining the patency of the transplanted blood vessels and preventing vasospasm are the core goals of postoperative care.

[0003] At present, it is necessary to use a medical baking lamp to continuously and mildly heat the replanted part after surgery, protect the activity of endothelial cells, maintain the stable ratio of endothelins and nitric oxide, and prevent vasospasm. The baking lamp can also optimize local microcirculation. Continuous and mild heating can dilate the precapillary sphincter and increase the number of open capillary beds, thereby increasing local blood flow from the early postoperative period to provide sufficient oxygen and nutrients for the tissue. In addition, the replanted part after surgery is often accompanied by significant pain due to ischemia, edema, and stimulation of nerve endings. The mild heating of the baking lamp can relieve pain, reduce discomfort caused by cold, and indirectly reduce the patient's anxiety. It creates favorable conditions for postoperative recovery.

[0004] However, there are still some deficiencies in the use of the medical baking lamp at present. Since it is used for different patients, the types of affected limbs encountered are different. Some patients have single finger replantation or multiple finger replantation, and some have palm vascular transplantation or metacarpophalangeal joint replantation. The irradiation area of the baking lamp required by different types of affected limbs is different, and the normal skin baking lamp should be avoided because the normal skin has a clear upper limit for temperature tolerance. Prolonged exposure to therapeutic temperatures can easily cause progressive damage to the dermis. Therefore, the irradiation area of the baking lamp needs to be manually adjusted by medical staff, which is low in efficiency and the baking lamp time is relatively long. During this period, the patient's posture is displaced or the affected limb is swollen, which causes deviation of the irradiation area and greatly affects the effect of the baking lamp. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a medical nursing baking lamp and a baking lamp irradiation area control method, which aims to realize accurate control of the irradiation area of the baking lamp, and adapt to the displacement of the affected limb or the swelling change of the affected limb during irradiation, to meet the dynamic adjustment requirement.

[0006] The present application provides a medical nursing baking lamp irradiation area control method, characterized by comprising: A doctor input step, in which the doctor inputs preset affected limb information, including affected limb type information and affected limb anastomosis position information; the doctor input step guides image analysis to preferentially verify the preset affected limb information input by the doctor, and defines a key area that must be covered for image acquisition; An image acquisition and analysis step, in which the affected limb type information is determined by matching the collected affected limb image with the established sample library, and the reliability of the affected limb type information is analyzed by comparing the determined affected limb type information with the preset affected limb information input by the doctor; A determination of initial irradiation area step, in which the clinical irradiation area is determined according to the affected limb type information, the clinical irradiation area and the lamp bead module of the baking lamp are mapped to each other, the corresponding lamp bead module is controlled to be turned on to determine the initial irradiation area of the baking lamp; A correction amount calculation step, in which the adjusted irradiation area of the baking lamp after the medical care adjustment is obtained, the adjusted irradiation area and the initial irradiation area are subtracted to calculate the deviation area, the external influence parameters are obtained to establish an irradiation area correction model, and the correction amount is output; A baking lamp irradiation opening step, in which the correction amount and the initial irradiation area are superimposed and summed to obtain a corrected irradiation area, which is used as an input irradiation area for controlling the baking lamp, and the corresponding lamp bead module of the baking lamp is controlled to be turned on for irradiation through the input irradiation area.

[0007] Further, the image acquisition and analysis step is configured with an analysis strategy, which is specifically: The affected limb image is collected by an image camera, and the affected limb effective area in the image is segmented by using the gray value difference, the affected limb effective area being specifically an area that has a difference in gray value compared with the cradle; The affected limb feature points are extracted from the affected limb effective area to determine the affected limb type information, and the anastomosis position is identified by penetrating the dressing through an infrared camera, the affected limb feature points including the palm root midpoint, the finger root joint inflection point, the finger tip endpoint, and the wrist horizontal line vertex; The sample library pre-stores the affected limb type information and the clinical irradiation rule, the clinical irradiation rule including the clinical irradiation area and the irradiation temperature, the affected limb information is matched with the affected limb type information in the sample library, and the affected limb type information with the highest similarity is selected as the selected affected limb type information; The selected limb type information and the anastomosis position are matched with preset limb information for matching degree analysis. If the matching degree exceeds a preset matching degree threshold, it is indicated that the doctor inputs the preset limb information correctly, otherwise, an artificial interaction module is triggered to interact with the doctor to confirm or supplement the limb type information.

[0008] The effective area of the limb is segmented by using the gray value difference to exclude the interference of the fixed background such as the bracket, and image data containing only the limb is obtained, which provides an analysis basis without clutter for subsequent feature extraction. The anastomosis position under the dressing is obtained by the infrared camera to avoid the algorithm only delineating the irradiation area according to the surface contour of the dressing. The reliability is improved by using the temperature dissection feature point of the skeleton support to judge the limb type during image analysis. The obtained limb type is matched and analyzed with the preset information input by the medical staff to ensure the reliability of the limb type information.

[0009] Further, the determination of the initial area step is configured with a mapping strategy for mapping the clinical irradiation area and the lamp bead module of the baking lamp to each other. The mapping strategy is specifically: According to the limb type information, the corresponding clinical irradiation area is obtained, and a standard two-dimensional coordinate system is established based on the bracket to obtain the coordinate interval of the clinical irradiation area; The origin of the lamp bead mounting plate is aligned with the origin of the bracket to complete the fixed mapping of the lamp bead two-dimensional coordinate system and the standard two-dimensional coordinate system; The initial irradiation area of the baking lamp is obtained according to the clinical irradiation area through the mapping relationship.

[0010] By establishing the standard two-dimensional coordinate system based on the bracket and the lamp bead two-dimensional coordinate system based on the lamp bead mounting plate, the origins of the two are aligned to realize fixed mapping, and the clinical irradiation area is converted into the opening instruction of the lamp bead module of the baking lamp, realizing the accurate conversion of abstract clinical demand to specific hardware control.

[0011] Further, the external influence parameters include the ambient light intensity and the distance between the baking lamp and the limb. The ambient light intensity is detected by an ambient light sensor, and the distance between the baking lamp and the limb is obtained by a distance measuring sensor.

[0012] The external influence parameters affecting the deviation of the irradiation area include the ambient light intensity, which affects the region segmentation error during image analysis, and the distance between the baking lamp and the limb, which affects the image acquisition area.

[0013] Further, the baking lamp irradiation opening step is further configured with an irradiation adjustment strategy. The irradiation adjustment strategy is specifically: Two groups of images are selected from the multiple groups of collected images according to the image acquisition time. The image with earlier image acquisition time is the first image, and the image with later image acquisition time is the second image; The same stable background feature points, which are edge points of the bracket, are extracted from the first image and the second image respectively, and the alignment of the two images is completed by using the registration of the stable background feature points on the two images; The limb feature points are extracted from the two registered images respectively, and the coordinates of the limb feature points are obtained, and by comparing the coordinate deviations of the same limb feature points in the two images, if the coordinate deviation exceeds the deviation threshold, the image acquisition and analysis step is triggered again to obtain a corrected irradiation area; The paired limb feature points located on the same limb part in the first image and the second image are extracted, and the coordinate difference of each pair of limb feature points is obtained, and the relative distance of each pair of limb feature points is calculated; The difference between the two sets of relative distances is compared, and if the difference exceeds the difference threshold, the image acquisition and analysis step is triggered again to obtain a corrected irradiation area.

[0014] Through the irradiation adjustment strategy during the baking lamp period, the displacement and swelling of the affected limb are detected, the irradiation area is reacquired in time when the affected limb is displaced, the irradiation area is avoided to be misaligned with the affected limb, and the irradiation area is reacquired in time when the affected limb is swollen, and the irradiation area caused by swelling or the healthy skin caused by subsiding is avoided.

[0015] The application also provides a medical care baking lamp applying the medical care baking lamp irradiation area control method, which is characterized by comprising an adjusting lifting rod, a box body, a baking lamp body and a bracket, the box body is fixedly installed on the fixed part of the adjusting lifting rod through a mounting frame, the telescopic part of the adjusting lifting rod penetrates through the top of the box body and extends into the box body, the end of the telescopic part of the adjusting lifting rod is provided with the baking lamp body, the lower part of the baking lamp body is provided with the bracket, the bracket is connected with the lifting seat installed on the bottom of the box body, and the lifting seat is used for adjusting the height of the bracket.

[0016] The bracket is used for supporting the affected limb of the patient, and the height of the bracket can be adjusted to meet the demand of lifting the affected limb during recovery.

[0017] Further, a placing opening is arranged on the side wall of the box body, a limiting part is arranged on the bracket and located at the position of the placing opening, a medical fixing belt is fixedly installed at the limiting part, the medical fixing belt is used for limiting the affected limb, the bracket is of a groove type structure, a soft layer is arranged on the upper surface of the bracket, the side wall of at least one side of the box body is arranged as an observation transparent plate, an operation opening is arranged on the box body, and a matched sealing cover is arranged at the operation opening.

[0018] The soft layer arranged on the bracket is used for improving the comfort of the patient and reducing the generation of pressure sores, and the medical fixing belt is matched to play a braking role on the affected limb.

[0019] Further, the bottom end of the adjusting lifting rod is installed on the moving seat, and the moving seat is used to move the position of the baking lamp.

[0020] The moving seat meets the requirement of convenient movement of the medical baking lamp.

[0021] Further, the baking lamp body comprises a lampshade, a lamp bead mounting plate and lamp beads, the lamp bead mounting plate is arranged in the lampshade, a plurality of groups of lamp beads are arranged in a ring shape on the lamp bead mounting plate, the lamp bead mounting plate is a transparent plate, an image camera and an infrared camera are arranged above the center of the lamp bead mounting plate, the distance measuring sensor is installed in the lampshade, and the ambient light sensor is installed in the box body.

[0022] For the design of the baking lamp body, the image camera and the infrared camera are installed above the center of the lamp bead mounting plate made of transparent material, which not only does not affect image acquisition, but also avoids the influence of the heat of the baking lamp on the camera installed beside the lamp source.

[0023] Further, at least one infrared temperature sensor and a temperature sensor are arranged on the side wall of the box body, the infrared temperature sensor is used to detect the temperature of the affected limb, the temperature sensor is used to detect the temperature in the box body, and a control panel is arranged on the outer wall of the box body.

[0024] By arranging the sensor for detecting the temperature of the affected limb and the sensor for detecting the temperature in the box body, the constant temperature in the box body is maintained, and the abnormal temperature of the affected limb can be found in time.

[0025] The beneficial effects of the present application are: The irradiation area control method designed by the present application realizes the correlation between the irradiation area deviation and the external influence parameter by establishing an irradiation area correction model, finally calculates the corrected irradiation area, realizes the accurate control of the irradiation area of the automatic baking lamp, and adapts to the displacement of the affected limb or the swelling change of the affected limb during irradiation, meets the demand of dynamic adjustment.

[0026] The medical nursing baking lamp designed by the present application is located in the box body, and the affected limb of the patient is extended into the box body to irradiate the postoperative replantation part, which not only satisfies the local irradiation baking lamp, but also maintains the affected limb at a constant temperature by using the box body, which is more conducive to recovery, and the height of the bracket designed for supporting the affected limb can be adjusted, which meets the demand of lifting the affected limb during irradiation. DETAILED DESCRIPTION

[0027] Figure 1 The flowchart of the irradiation area control method of the medical nursing baking lamp in one embodiment of the present application is shown in the figure; Figure 2 The overall schematic diagram of the structure of the medical nursing baking lamp in one embodiment of the present application is shown in the figure; Figure 3It is a schematic view of the inside of the box of the medical care baking lamp structure in an embodiment of the present application; Figure 4 It is a schematic view of the side of the box of the medical care baking lamp structure in an embodiment of the present application; Figure 5 It is a schematic view of the structure of the baking lamp body of the medical care baking lamp structure in an embodiment of the present application; The reference signs are as follows: 1, moving seat; 2, adjusting lifting rod; 3, box; 31, observation transparent plate; 32, placing port; 33, operation port; 34, sealing cover; 4, baking lamp body; 41, lampshade; 42, lamp bead mounting plate; 43, lamp bead; 5, bracket; 51, medical fixing belt; 61, infrared temperature measurement sensor; 62, temperature sensor; 10, control panel. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be an intervening component. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be an intervening component. When a component is referred to as being "disposed" on another component, it can be directly disposed on the other component or there can be an intervening component. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for purposes of illustration only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] In an embodiment of the present application, as Figures 2-5As shown, the medical care baking lamp applying the medical care baking lamp irradiation area control method comprises an adjusting lifting rod 2, a box body 3, a baking lamp body 4 and a bracket 5, the box body 3 is fixedly installed on the fixed part of the adjusting lifting rod 2 through a mounting frame, the telescopic part of the adjusting lifting rod 2 penetrates through the top of the box body 3 and extends into the box body 3, the end of the telescopic part of the adjusting lifting rod 2 is provided with the baking lamp body 4, the bracket 5 is arranged below the baking lamp body 4, the bracket 5 is connected with a lifting seat installed on the bottom of the box body 3, the lifting seat is used for adjusting the height of the bracket 5, a placing opening 32 is arranged on the side wall of the box body 3, the bracket 5 is provided with a limiting part and the limiting part is located at the position of the placing opening 32.

[0032] The bottom end of the adjusting lifting rod 2 is installed on the moving seat 1, the position of the baking lamp is conveniently moved through the moving seat 1, the adjusting lifting rod 2 is used for adjusting the height of the baking lamp body 4, the distance between the baking lamp body 4 and the affected limb is adjusted, the adjusting lifting rod 2 can adopt a screw rod transmission type lifting rod, the rotation movement is converted into the linear movement through the thread cooperation of the screw rod and the nut, the lifting of the telescopic part in the adjusting lifting rod is realized, and the driving mode of the screw rod can adopt motor driving; or a rack and pinion type lifting rod is adopted, the output shaft of the motor is connected with a gear disc, the gear disc is engaged with a rack, the up and down movement of the rack is realized when the gear disc rotates, the adjusting operation of the telescopic part is completed, or a manual clamping type lifting rod is adopted, the spring buckle or the pin is arranged on the fixed part, and the limiting hole arranged on the telescopic part is matched to complete the step fixing.

[0033] The bracket 5 is used for supporting the affected limb of the patient, the height of the bracket 5 can be adjusted, the demand of the affected limb lifting during the recovery period is met, the lifting seat for adjusting the bracket can adopt an electric push rod driving type lifting seat, one end of the bracket 5 near the placing opening 32 of the box body 3 is hingedly installed on the bottom plate in the lifting seat, the other end away from the placing opening 32 of the box body 3 is hingedly connected with the telescopic end of the electric push rod below, the end of the electric push rod is installed on the bottom plate in the lifting seat, the end of the bracket 5 is driven to lift through the linear telescopic, the inclination angle is formed by cooperating with the hinged point, and the demand of the height adjustment of the affected limb is realized; or a screw rod transmission type lifting seat is adopted, one end of the bracket 5 near the placing opening 32 of the box body 3 is also hingedly installed on the bottom plate of the lifting seat, the other end of the bracket 5 is in contact with the top of the top rod below, the screw rod is installed on the bottom plate of the lifting seat, and the driving mode of the screw rod can adopt manual or electric, the top rod is screwed on the screw rod, and the top rod can move below the bracket. Since the height of the top rod is determined, as the top rod moves towards the hinged point of the bracket, the inclination degree of the bracket is adjusted, and the demand of the affected limb lifting is met.

[0034] By Figure 3 And Figure 4The limiting part of the bracket 5 is fixedly provided with a medical fixing belt 51, which is used for limiting the affected limb and plays a braking role on the affected limb. In addition, at least one side wall of the box body 3 is provided with an observation transparent plate 31, which is used for the medical staff to judge the recovery condition in the box body 3, and the box body 3 is provided with an operation opening 33, and the operation opening 33 is provided with a matched sealing cover 34, so that the medical staff can touch the skin temperature or capillary response of the affected limb by opening the sealing cover 34 and putting the hand into the box body 3.

[0035] Through Figure 5 It can be seen that the baking lamp body 4 comprises a lampshade 41, a lamp bead mounting plate 42 and lamp beads 43, the lamp bead mounting plate 42 is arranged in the lampshade 41, a plurality of groups of lamp beads 43 are arranged in a ring shape on the lamp bead mounting plate 42, the lamp beads 43 are infrared lamp beads, the lamp bead mounting plate 42 is made of a transparent plate with high temperature resistance, an image camera and an infrared camera are arranged in an installation cavity formed between the upper center of the lamp bead mounting plate 42 and the lampshade 41, the image camera and the infrared camera are used for image acquisition of the affected limb on the bracket 5, a distance measuring sensor is also arranged in the cavity, the distance measuring sensor is used for detecting the distance between the baking lamp body and the affected limb, and an ambient light sensor is arranged in the box body 3, which is used for detecting the ambient light intensity of the affected limb during image acquisition.

[0036] As Figure 1 The present application also designs a medical nursing baking lamp irradiation area control method, which comprises: The doctor input step is used for inputting preset affected limb information by the doctor, the preset affected limb information comprises affected limb type information and affected limb anastomosis position information; the doctor input step is used for guiding image analysis to preferentially verify the preset affected limb information input by the doctor, and the key area that must be covered is determined for image acquisition; after the key area for image acquisition is determined, the image camera can automatically focus on the area, and the doctor input is based on clinical diagnosis, which also sets a verification standard for subsequent image recognition, The image acquisition and analysis step matches the limb image with the established sample library to determine the limb type information, and compares the determined limb type information with the preset limb information input by the doctor to analyze the reliability of the limb type information. This step quickly matches the current limb image through the matching algorithm, and can also timely find deviations to trigger manual interaction confirmation, avoiding subsequent irradiation errors caused by algorithm or doctor input errors, The initial irradiation area determination step determines the clinical irradiation area according to the limb type information, and maps the clinical irradiation area and the lamp bead module of the baking lamp to each other to control the corresponding lamp bead module to be turned on to determine the initial irradiation area of the baking lamp. This step directly converts the clinical irradiation area into a lamp bead start-stop signal through the mapping relationship, avoiding missing the irradiation of the anastomotic stoma or misirradiating the normal skin, The correction amount calculation step obtains the adjusted irradiation area of the baking lamp after the medical care adjustment, calculates the deviation area by subtracting the initial irradiation area from the adjusted irradiation area, and establishes an irradiation area correction model by obtaining the external influence parameter to output the correction amount. This step uses the correction model to make the subsequent irradiation area meet the actual needs without medical care adjustment, and the correction model will automatically update the parameters after each medical care adjustment, The baking lamp irradiation opening step adds and sums the correction amount and the initial irradiation area to obtain a corrected irradiation area, which is used as an input irradiation area for controlling the baking lamp. The lamp bead module of the corresponding baking lamp is turned on for irradiation through the input irradiation area.

[0037] Further, the image acquisition and analysis step is configured with an analysis strategy, and the analysis strategy specifically includes: The limb image is acquired by the image camera, and the limb effective area in the image is segmented by using the gray value difference. The limb effective area specifically refers to the area that has a difference in gray value compared with the cradle. It should be noted that the gray value difference refers to the gray value of the pixels in different areas of the image. For example, the gray value range is 0-255, which represents the difference between 0 (pure black) and 255 (pure white). Different objects such as limbs and cradles can be distinguished by the difference. Since the gray value of the limb skin is usually lower than that of the cradle material, the limb effective area is the image area containing only the limb after removing the background area such as the cradle and the box, and is the core analysis object for subsequent feature extraction and type identification, The feature points of the affected limb are extracted from the effective area of the affected limb to determine the type information of the affected limb, and the anastomosis position is identified by penetrating the dressing through the infrared camera. The feature points of the affected limb include the midpoint of the heel, the knuckle joint inflection point of the finger root, the fingertip endpoint, and the vertex of the wrist horizontal wrinkle. In detail, the infrared camera can use 8-14 μm mid-wave infrared light, which can achieve a medical dressing penetration rate of more than 85%. The device for collecting internal structure images of the affected limb can penetrate the dressing to identify the anastomosis, and also avoids radiation damage to the human body. The dressing is a sterile medical covering that covers the anastomosis and surrounding area of the affected limb after surgery. Common materials are absorbent cotton, gauze or transparent medical film. The role of the dressing is to protect the wound and prevent infection. The anastomosis position is the suture connection site of blood vessels, nerves or bones after finger replantation, vascular transplantation, etc. It is the core area that needs to be covered by the baking lamp. The feature points of the affected limb are points on the surface of the affected limb that have fixed anatomical features. The midpoint of the heel is the geometric center point near the wrist joint at the root of the palm. The knuckle joint inflection point of the finger root is the turning vertex of the joint at the root of the finger. The fingertip endpoint is the endpoint of the finger tip. The vertex of the wrist horizontal wrinkle is the highest vertex of the horizontal skin wrinkle at the wrist joint. These feature points can reflect the type and shape of the affected limb, The sample library pre-stores the type information of the affected limb and the clinical irradiation rule. The clinical irradiation rule includes the clinical irradiation area and the irradiation temperature. The affected limb information is matched with the type information of the affected limb in the sample library, and the type information of the affected limb with the highest similarity is selected as the selected type information of the affected limb. The type information of the affected limb stored in the sample library includes single finger replantation, palm vascular transplantation, etc. Each type information of the affected limb has a corresponding clinical irradiation rule in the clinical experience process. The clinical irradiation rule is the irradiation area, such as the clinical irradiation area of single finger replantation, which needs to cover the middle finger anastomosis and the surrounding 5mm range. The irradiation temperature is 38°-40°. The clinical irradiation area of palm vascular transplantation needs to cover the palm vascular transplantation area and the surrounding 3mm range. The irradiation temperature is 37°-39°. The similarity refers to the similarity between the current affected limb information and the standard information of a certain type of affected limb in the sample library. If the value is 0-1, the closer to 1, the higher the similarity, The selected type information of the affected limb and the anastomosis position are matched with the preset affected limb information to determine the matching degree. If the matching degree exceeds the preset matching degree threshold, it means that the doctor inputs the preset affected limb information correctly. Otherwise, the artificial interaction module interacts with the doctor to confirm or supplement the type information of the affected limb.

[0038] The analysis strategy is to segment the effective area of the affected limb by using the gray value difference, to exclude the interference of the fixed background such as the bracket, to obtain the image data containing only the affected limb, to provide a clean analysis basis for subsequent feature extraction, to obtain the anastomosis position under the dressing by the infrared camera, to avoid the algorithm only according to the surface contour of the dressing to demarcate the irradiation area, and to use the temperature dissection feature points of the skeleton support to judge the type of the affected limb during image analysis, to improve the reliability, and to match the obtained type of the affected limb with the preset information input by the medical staff for analysis, to ensure the reliability of the type information of the affected limb.

[0039] Further, the mapping strategy for mapping the clinical irradiation area and the lamp bead module of the baking lamp is configured in the initial area determination step, and the mapping strategy is specifically: According to the type information of the affected limb, the corresponding clinical irradiation area is obtained, and a standard two-dimensional coordinate system is established based on the bracket, and the coordinate interval of the clinical irradiation area is obtained; The lamp bead two-dimensional coordinate system is established based on the lamp bead mounting plate, the origin of the lamp bead mounting plate is aligned with the origin of the bracket, and the fixed mapping of the lamp bead two-dimensional coordinate system and the standard two-dimensional coordinate system is completed; The initial irradiation area of the baking lamp is obtained according to the clinical irradiation area through the mapping relationship.

[0040] For example, during use, there are two cases of parallel and non-parallel between the bracket and the baking lamp, When the bracket is used to meet the demand of supporting the affected limb, an angle appears between the bracket and the baking lamp, which is the spatial angle between the plane where the upper surface of the bracket is located and the plane where the lamp bead mounting plate is located, indicating that the two are in a non-parallel state. When the fixed mapping of the lamp bead two-dimensional coordinate system and the standard two-dimensional coordinate system is performed, an inclination sensor needs to be installed at the bottom of the bracket to detect the inclination angle of the bracket. The inclination sensor used is an existing commercially available device, so it will not be described in detail. When the standard two-dimensional coordinate system based on the bracket is established, a point on the bracket is taken as the origin O, the horizontal direction along the length direction of the bracket and decomposed by the inclination angle is defined as the X-axis direction, and the horizontal direction along the width direction of the bracket and decomposed by the inclination angle is defined as the Y-axis direction. The standard two-dimensional coordinate system is established. The center point on the baking lamp is taken as the origin O', the X' axis direction is defined as parallel to the X axis direction, and the Y' axis direction is defined as parallel to the Y axis direction. The lamp bead two-dimensional coordinate system is established. The mapping is completed by aligning the origins of the standard two-dimensional coordinate system and the lamp bead two-dimensional coordinate system; When the inclination angle of the bracket does not need to be adjusted, the bracket is parallel to the baking lamp, a standard two-dimensional coordinate system is established based on the bracket, a point on the bracket is defined as the origin O, the length direction of the bracket is defined as the X-axis direction, the width direction of the bracket is defined as the Y-axis direction, a standard two-dimensional coordinate system is established, the center point of the baking lamp is defined as the origin O', the X' axis direction is parallel to the X-axis direction, and the Y' axis direction is parallel to the Y-axis direction, a lamp bead two-dimensional coordinate system is established, and the mapping is completed by aligning the origins of the standard two-dimensional coordinate system and the lamp bead two-dimensional coordinate system. At this time, the coordinates (x, y) of any point in the standard two-dimensional coordinate system and the coordinates (x', y') of the corresponding point in the lamp bead two-dimensional coordinate system satisfy the relationship x' = x, y' = y, and the two coordinate systems are completely corresponding.

[0041] The mapping strategy is to align the origins of the standard two-dimensional coordinate system based on the bracket and the lamp bead two-dimensional coordinate system based on the lamp bead mounting plate to realize fixed mapping, convert the clinical irradiation area into an opening instruction of the lamp bead module of the baking lamp, and realize accurate conversion of abstract clinical requirements to specific hardware control.

[0042] Further, the external influence parameters include environmental light intensity and the distance between the baking lamp and the affected limb. The environmental light intensity is detected by an environmental light sensor, and the distance between the baking lamp and the affected limb is obtained by a distance measuring sensor.

[0043] The formula of the irradiation area correction model is: = , wherein ΔA is the correction amount; is the initial irradiation area; is the adjusted irradiation area; α and β are weight coefficients, satisfying α + β = 1, for distributing the influence weight of the environmental light and the distance on the correction result; L is the actual environmental light parameter, indicating the real-time environmental light intensity when the baking lamp is working; is the standard environmental light parameter, indicating the preset ideal working environmental light intensity; D is the actual distance parameter, indicating the real-time distance between the baking lamp and the affected limb; is the standard distance parameter, indicating the preset optimal distance between the baking lamp and the affected limb.

[0044] The calculation formula of the corrected irradiation area is: , wherein is the corrected irradiation area, indicating the final determined irradiation area after compensation of the external parameters.

[0045] Further, the baking lamp irradiation opening step is further configured with an irradiation adjustment strategy, and the irradiation adjustment strategy specifically comprises: Two groups of images are selected from the multiple groups of collected images according to image collection time, the image collected earlier in time is the first image, and the image collected later in time is the second image; The same stable background feature points are extracted from the first image and the second image respectively, the stable background feature points are edge points on the bracket, and alignment of the two images is completed by registration of the stable background feature points on the two images; The limb feature points are extracted from the two groups of registered images respectively, and the coordinates of the limb feature points are obtained, by comparing the coordinate deviations of the same limb feature points in the two groups of images, if the coordinate deviation exceeds the deviation threshold, the image collection and analysis step is triggered to obtain a corrected irradiation area again; For example, from the continuously collected images, two groups of images are selected according to the time interval of 10 minutes, the image collected at 10:00 is the first image, and the image collected at 10:10 is the second image, the coordinates of the corresponding 2 groups of edge points on the bracket are extracted from the first image and the second image respectively, the coordinates of the 2 groups of edge points obtained on the first image are 、 , the coordinates of the 2 groups of edge points on the second image are 、 , the perspective transformation matrix of the 2 groups of feature points is calculated to complete the registration and alignment of the two images, 3 groups of limb feature points are extracted from the registered images on the limb, the coordinates of the metacarpal midpoint, the knuckle joint inflection point and the fingertip endpoint are obtained, the coordinates of the three feature points in the first image are 、 、 , the corresponding coordinates of the three feature points in the second image are 、 、 The coordinate deviation of the two groups of coordinates of the unified feature points in the two groups of images is calculated by the least square method, and compared with the preset deviation threshold to determine whether to trigger the correction.

[0046] The paired limb feature points located on the same limb part in the first image and the second image are extracted, and the coordinate difference of each pair of limb feature points is obtained, and the relative distance of each pair of limb feature points is calculated; The difference between the two groups of relative distances is compared, if the difference exceeds the difference threshold, the image collection and analysis step is triggered to obtain a corrected irradiation area again.

[0047] During the baking lamp period, the displacement and swelling of the affected limb are detected by the irradiation adjustment strategy, the irradiation area is reacquired in time when the affected limb is displaced, the irradiation area is avoided to be misaligned with the affected limb, and the irradiation area is reacquired in time when the swelling of the affected limb is detected, the irradiation area is avoided to be insufficient due to swelling or healthy skin is avoided to be mis-irradiated due to subsiding.

[0048] For example, in the case of a single-finger amputated replantation of a limb type, the first image with a collection time of 8:00 is selected from the image set, and the second image with a collection interval of three hours and a time of 11:00 is selected. From each image, two pairs of feature points are selected, the proximal phalanx base point M of the index finger and the distal nail root point N of the index finger, which are used to reflect the longitudinal length variation of the finger, and the skin midpoint W and Y on both sides of the proximal phalanx of the index finger, which are used to reflect the transverse diameter change of the finger. The relative distance between the coordinates of

[0049] The present application establishes a radiation area correction model to associate the radiation area deviation with external influence parameters, and finally calculates the corrected radiation area, realizes the precise control of the radiation area of the automatic baking lamp, and adapts to the displacement of the affected limb or the swelling change of the affected limb during the radiation period, meets the dynamic adjustment demand.

[0050] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the scope of the present application is within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application are also considered as the protection scope of the present application.​​​​​​​​​​​​​​​​​​​​​​​​

Claims

1. A medical care broiler lamp irradiation area control method characterized by, The method comprises the following steps: A doctor input step, in which a doctor inputs preset limb information, the preset limb information comprising limb type information and limb anastomosis position information; An image acquisition and analysis step, in which a limb image is acquired and matched with a sample library to determine the limb type information, and the determined limb type information is compared with the preset limb information to analyze the reliability of the limb type information; A determination of an initial irradiation area step, in which a clinical irradiation area is determined according to the limb type information, the clinical irradiation area and lamp bead modules of a baking lamp are mapped to each other, and corresponding lamp bead modules are controlled to be turned on to determine the initial irradiation area of the baking lamp; A correction amount calculation step, in which an adjusted irradiation area of the baking lamp after adjustment by medical staff is obtained, a difference between the adjusted irradiation area and the initial irradiation area is calculated to obtain a deviation area, an external influence parameter is obtained to establish an irradiation area correction model, and a correction amount is output; A baking lamp irradiation opening step, in which the correction amount and the initial irradiation area are superimposed and summed to obtain a corrected irradiation area, which is used as an input irradiation area for controlling the baking lamp, and corresponding lamp bead modules of the baking lamp are controlled to be turned on for irradiation through the input irradiation area.

2. The method of claim 1, wherein the method further comprises: The image acquisition and analysis step is configured with an analysis strategy, and the analysis strategy specifically comprises: A limb image is acquired by an image camera, and a limb effective area in the image is segmented by using a gray value difference, the limb effective area specifically being an area having a difference in gray value compared with the cradle; Limb feature points are extracted from the limb effective area to determine the limb type information, and an anastomosis position is identified by penetrating a dressing through an infrared camera, the limb feature points comprising a palm root midpoint, a finger root joint inflection point, a finger tip endpoint, and a wrist horizontal line vertex; The sample library pre-stores limb type information and clinical irradiation rules, the clinical irradiation rules comprising a clinical irradiation area and an irradiation temperature, the limb information is matched with the limb type information in the sample library, and the limb type information with the highest similarity is selected as selected limb type information; The selected limb type information and the anastomosis position are analyzed for matching degree with the preset limb information, and if the matching degree exceeds a preset matching degree threshold, it is indicated that the doctor input of the preset limb information is correct, otherwise, an artificial interaction module is triggered to interact with the doctor to confirm or supplement the limb type information.

3. The method of claim 1, wherein the method further comprises: The determination of the initial area step is configured with a mapping strategy for mapping the clinical irradiation area and the lamp bead modules of the baking lamp to each other, and the mapping strategy specifically comprises: A corresponding clinical irradiation area is obtained according to the limb type information, a standard two-dimensional coordinate system is established based on the cradle, and a coordinate interval of the clinical irradiation area is obtained; A lamp bead two-dimensional coordinate system is established based on a lamp bead mounting plate of the baking lamp, an origin of the lamp bead mounting plate is aligned with an origin of the cradle, and fixed mapping of the lamp bead two-dimensional coordinate system and the standard two-dimensional coordinate system is completed; The initial irradiation area of the baking lamp is obtained according to the clinical irradiation area through the mapping relationship.

4. The method of claim 1, wherein the method further comprises: The external influence parameter comprises environmental light intensity and a distance between the baking lamp and the limb, the environmental light intensity is detected by an environmental light sensor, and the distance between the baking lamp and the limb is obtained by a distance measuring sensor.

5. The method of claim 1, wherein the method further comprises: The baking lamp irradiation opening step is further configured with an irradiation adjustment strategy, and the irradiation adjustment strategy specifically comprises: Two groups of images are selected from the multiple groups of collected images according to image collection time, the image collected earlier in time is the first image, and the image collected later in time is the second image; The same stable background feature points are extracted from the first image and the second image, the stable background feature points are edge points of the bracket, and alignment of the two images is completed by registration of the stable background feature points on the two images; The limb feature points are extracted from the two groups of images after registration, and the coordinates of the limb feature points are obtained, by comparing the coordinate deviations of the same limb feature points in the two groups of images, if the coordinate deviation exceeds the deviation threshold, the image collection and analysis step is triggered to obtain a corrected irradiation area again; The paired limb feature points located on the same limb part in the first image and the second image are extracted, and the coordinates of each pair of limb feature points are obtained, and the relative distances of each pair of limb feature points are calculated. If the difference between the two relative distances exceeds the difference threshold, the image collection and analysis step is triggered to obtain a corrected irradiation area again.

6. A medical care baking lamp using the method of any one of claims 1 to 5, wherein The adjusting lifting rod (2), the box body (3), the baking lamp body (4) and the bracket (5) are included, the box body (3) is fixedly installed on the fixed part of the adjusting lifting rod (2) through the mounting frame, the telescopic part of the adjusting lifting rod (2) penetrates through the top of the box body (3) and extends into the box body (3), the end of the telescopic part of the adjusting lifting rod (2) is provided with the baking lamp body (4), the bracket (5) is arranged below the baking lamp body (4), the bracket (5) is connected with the lifting seat installed at the bottom of the box body (3), and the lifting seat is used for adjusting the height of the bracket (5).

7. A medical treatment lamp according to claim 6, characterized in that A placing opening (32) is arranged on the side wall of the box body (3), the bracket (5) is provided with a limiting part located at the position of the placing opening (32), a medical fixing belt (51) is fixedly installed at the limiting part, the medical fixing belt (51) is used for limiting the limb, the bracket (5) is of a groove type structure, a soft layer is arranged on the upper surface of the bracket (5), the side wall of at least one side of the box body (3) is arranged as an observation transparent plate (31), an operation opening (33) is arranged on the box body (3), and a matched sealing cover (34) is arranged at the operation opening (33).

8. A medical treatment lamp according to claim 6, characterized in that The bottom end of the adjusting lifting rod (2) is installed on the moving seat (1), and the moving seat (1) is used for moving the position of the baking lamp.

9. A medical treatment lamp according to claim 6, characterized in that The baking lamp body (4) includes a lampshade (41), a lamp bead mounting plate (42) and lamp beads (43), the lamp bead mounting plate (42) is arranged in the lampshade (41), a plurality of groups of lamp beads (43) are arranged in a ring shape on the lamp bead mounting plate (42), the lamp bead mounting plate (42) is a transparent plate, an image camera and an infrared camera are arranged above the center of the lamp bead mounting plate (42), a distance measuring sensor is installed in the lampshade (41), and an ambient light sensor is installed in the box body (3).

10. The medical treatment broiler lamp according to claim 6, wherein The side wall inside the box (3) is provided with at least one infrared temperature sensor (61) and a temperature sensor (62), the infrared temperature sensor (61) is used for detecting the temperature of the affected limb, the temperature sensor (62) is used for detecting the temperature in the box (3), and the outer wall of the box (3) is provided with a control panel (10).

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