Photographing device for lymphedema patient

Abstract

The utility model discloses a photographing device for a lymphedema patient, which belongs to the technical field of medical detection equipment and comprises an image acquisition mechanism, a roller shutter type photographing background wall component and a ground body position indication identification platform, the ground body position indication identification platform comprises a positioning platform and two pairs of footprint marks arranged on the positioning platform, the roller shutter type photographing background wall assembly comprises a roller shutter type background assembly and a driving mechanism, the power output end of the driving mechanism is connected with the power input end of the roller shutter type background assembly, the driving mechanism can drive the roller shutter type background assembly to achieve lifting motion and winding motion, and the positioning platform is located under the roller shutter type background assembly. According to the photographing device for the lymphedema patient, accurate positioning and data collection of the body position can be achieved, background standardization is achieved, and image data are reliable and efficient in management.

Description

Technical Field

[0001] This utility model relates to the field of medical testing equipment technology, and in particular to a photographic device for patients with lymphedema. Background Technology

[0002] In current technology, photos of lymphedema patients are mostly taken with mobile phones or cameras. More standardized methods involve adding a blue background cloth. However, the assessment of lymphedema treatment presents the following problems:

[0003] 1. Insufficient body position control: The lack of standardized positioning markers when taking pictures of patients leads to large deviations in angle and position when taking pictures multiple times;

[0004] 2. Lack of background reference: Ordinary background cloths lack scale markings, making it difficult to quantify changes in patient body shape;

[0005] 3. Inefficient data management: It relies on manual annotation of shooting time and patient information, which is prone to errors and cannot be integrated with the medical system.

[0006] In summary, patients with lymphedema require multiple photographs before and after treatment to assess the effectiveness of the treatment. Current equipment struggles to maintain a consistent angle across multiple photographs, thus failing to accurately reflect the patient's treatment progress. Secondly, the need to label photographs with the patient's name and the date of capture, followed by post-processing and uploading, increases workload and increases the risk of errors and omissions. Furthermore, simultaneous measurement and data recording hinders data processing and statistical analysis. These issues collectively restrict the improvement of medical service quality and urgently require solutions through improved equipment design. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a photographic device for patients with lymphedema, which can achieve accurate positioning and data acquisition, background standardization, and reliable and efficient management of image data.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] This utility model provides a photographic device for patients with lymphedema, including an image acquisition mechanism for acquiring image data of the patient. The photographic device for patients with lymphedema also includes a roller shutter-type photographic background wall assembly and a ground-based body positioning indicator platform. The ground-based body positioning indicator platform is located directly below the roller shutter-type photographic background wall assembly. The ground-based body positioning indicator platform includes a positioning platform and two pairs of footprint markers set on the positioning platform. The roller shutter-type photographic background wall assembly includes a roller shutter-type background assembly and a drive mechanism. The power output end of the drive mechanism is connected to the power input end of the roller shutter-type background assembly. The drive mechanism can drive the roller shutter-type background assembly to achieve lifting and rolling movements. The positioning platform is located directly below the roller shutter-type background assembly.

[0010] The preferred technical solution of this utility model is that a symmetrical center line is provided on the middle part of the positioning platform, and the symmetrical center line is aligned with the torso positioning center line provided on the roller shutter background component.

[0011] The preferred technical solution of this utility model is that the two pairs of footprint markers are respectively configured as footprint orientation indicator markers and footprint side position indicator markers, with the footprint orientation indicator markers located in the middle of the footprint side position indicator markers.

[0012] The preferred technical solution of this utility model is that the footprint orientation indicator includes two first foot positioning grooves formed on the positioning platform, the two first foot positioning grooves being symmetrically distributed on both sides of the center line of symmetry, and the footprint side orientation indicator includes two second foot positioning grooves formed on the positioning platform, the two second foot positioning grooves being symmetrically distributed on both sides of the center line of symmetry, and the two first foot positioning grooves being located between the two second foot positioning grooves.

[0013] The preferred technical solution of this utility model is that the roller blind background assembly includes a roller blind background cloth, a rotating shaft, two bearing assemblies and two columns. The top of the roller blind background cloth is fixed on the outer circular surface of the rotating shaft. The positioning platform is located directly below the roller blind background cloth. One end of the rotating shaft passes through a bearing assembly and is connected to the power output end of the drive mechanism. The other end of the rotating shaft is located in another bearing assembly. The bearing assembly is fixed on the top of the columns.

[0014] The preferred technical solution of this utility model is that the roller blind background cloth is provided with a grid pattern marking, the grid pattern marking is printed with fluorescent material, and the torso positioning center axis is provided at the central axis position of the roller blind background cloth.

[0015] The preferred technical solution of this utility model is that the image acquisition mechanism includes a camera component and a positioning bracket. The positioning bracket holds the camera component, and a number of equally spaced camera position marks are provided on the ground in front of the positioning platform. The positioning bracket is set on one of the camera position marks.

[0016] The preferred technical solution of this utility model is that the image acquisition mechanism uploads the acquired image data to the patient information database for storage via a wireless transmission unit.

[0017] The preferred technical solution of this utility model is that the wireless transmission unit integrates a QR code scanning module for matching patient file information.

[0018] The preferred technical solution of this utility model is that the patient information database transmits information to the hospital PACS system, and the DICOM format data is directly transmitted through the hospital PACS system.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. Standardized Posture Control: Dual positioning is achieved through the synergistic effect of the foot positioning groove on the ground and the torso positioning axis on the background wall, which makes the deviation of the patient's frontal / lateral standing angle smaller and the limb positioning accuracy higher each time.

[0021] 2. Improved Image Data Comparability: The use of a fluorescent grid ensures clear visibility even in low-light conditions. Combined with a standardized grid, this enhances the sensitivity and accuracy of detecting changes in limb circumference before and after treatment. The camera positioning bracket works in conjunction with ground markings to ensure consistency in parameters such as shooting height, pitch angle, and focal length throughout the entire process, achieving multi-dimensional parameter locking and reducing measurement errors.

[0022] 3. Efficient and accurate management of patient medical data: The wireless transmission unit integrates a QR code scanning module to automatically associate patient IDs with captured images, eliminating identity confusion caused by manual annotation and achieving intelligent and accurate data association. Simultaneously, the patient information database achieves direct DICOM data transmission to the PACS system via the HL7 protocol, significantly reducing image report generation time. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the photographic device for patients with lymphedema provided in a specific embodiment of this utility model.

[0024] Figure 2 This is a detailed structural schematic diagram of the photographing device for patients with lymphedema provided in a specific embodiment of this utility model.

[0025] Figure 3 yes Figure 2 A magnified schematic diagram of the photographic device for patients with lymphedema, shown in section A.

[0026] Figure 4 This is a schematic diagram of the data transmission module architecture of the photographic device for patients with lymphedema provided in a specific embodiment of this utility model.

[0027] In the picture:

[0028] 1. Image acquisition mechanism; 11. Camera assembly; 12. Positioning bracket; 13. Camera position marker; 2. Roll-up photo backdrop assembly; 21. Roll-up backdrop assembly; 211. Roll-up backdrop cloth; 212. Rotating shaft; 213. Bearing assembly; 214. Column; 22. Drive mechanism; 3. Ground position indicator platform; 31. Positioning platform; 32. Footprint marker; 321. Footprint positivity indicator; 3211. First foot positioning groove; 322. Footprint lateral positioning indicator; 3221. Second foot positioning groove; 4. Wireless transmission unit; 5. Patient information database; 6. Hospital PACS system. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 4 As shown in the figure, the photographic device for patients with lymphedema provided in this embodiment includes an image acquisition mechanism 1, which is used to acquire the patient's image data. In order to enable the photographic device for patients with lymphedema to achieve accurate positioning and data acquisition, background standardization, and reliable and efficient management of image data, the photographic device for patients with lymphedema further includes a roller shutter-type photographic background wall component 2 and a ground positioning indicator platform 3. The ground positioning indicator platform 3 is located directly below the roller shutter-type photographic background wall component 2. The ground positioning indicator platform 3 includes a positioning platform 31 and two pairs of footprint markers 32 set on the positioning platform 31. The roller shutter-type photographic background wall component 2 includes a roller shutter-type background component 21 and a drive mechanism 22. The power output end of the drive mechanism 22 is connected to the power input end of the roller shutter-type background component 21. The drive mechanism 22 can drive the roller shutter-type background component 21 to achieve lifting and rolling movements. The positioning platform 31 is located directly below the roller shutter-type background component 21. The drive mechanism 22 uses a stepper motor to drive the roller shutter-type background component 21 to achieve lifting and rolling movements. The motor has a built-in encoder to control the lifting accuracy of the roller shutter (error ≤ 1mm). The roller shutter-type background component 21 can be pulled down or retracted like a projection screen via a button, serving as a reference for changes in the patient's body shape. The positioning platform 31 is covered with a non-slip rubber layer and has a laser-etched symmetrical center line in the middle. Furthermore, the positioning platform 31 uses a 304 stainless steel substrate (8mm thick) with a non-slip coating (friction coefficient μ≥0.75). The footprint marker 32 ensures that the patient's body position is consistent for each photo, reducing or avoiding shooting errors caused by body position deviation. Through the above process, the imaging device used for patients with lymphedema can achieve precise body position positioning for data collection, background standardization, reduce or avoid shooting errors caused by body position deviation, and ensure accurate and reliable management of the collected image data.

[0031] Preferably, a symmetrical center line is provided on the center of the positioning platform 31, which is aligned with the torso positioning center axis provided on the roller shutter-type background component 21. The symmetrical center line is formed by laser engraving to create a permanent marking line with a width of 2mm (error ±0.1mm). Aligning the symmetrical center line of the positioning platform 31 with the torso positioning center axis of the roller shutter-type background component 21 reduces torso deflection measurement error and further reduces body position adjustment time, achieving efficient and accurate measurement.

[0032] Preferably, the two pairs of footprint markers 32 are respectively configured as a frontal footprint indicator 321 and a lateral footprint indicator 322, with the frontal footprint indicator 321 located in the middle of the lateral footprint indicator 322. The frontal footprint indicator 321 is used to locate the foot when the patient is taking a standing photograph in a frontal position, and the lateral footprint indicator 322 is used to locate the foot when the patient is taking a standing photograph in a lateral position. By using the above-mentioned frontal or lateral footprint indicators, the consistency of the patient's position before and after measurement is ensured, thereby enabling more accurate and intuitive measurement of changes in the edema area, reducing measurement errors, and ensuring measurement accuracy.

[0033] Preferably, the footprint alignment indicator 321 includes two first foot positioning grooves 3211 formed on the positioning base 31, the two first foot positioning grooves 3211 being symmetrically distributed on both sides of the center line of symmetry. The footprint lateral alignment indicator 322 includes two second foot positioning grooves 3221 formed on the positioning base 31, the two second foot positioning grooves 3221 being symmetrically distributed on both sides of the center line of symmetry. Both first foot positioning grooves 3211 are located between the two second foot positioning grooves 3221. The first foot positioning grooves 3211 and 3221 are designed with a depth of 15mm and an inner wall inclination angle of 45°. Further, the two second foot positioning grooves 3221 are distributed at a 180-degree angle. Further, a pressure sensor can be embedded in the groove to detect the foot fit.

[0034] Preferably, the roller blind backdrop assembly 21 includes a roller blind backdrop 211, a rotating shaft 212, two bearing assemblies 213, and two uprights 214. The top end of the roller blind backdrop 211 is fixed to the outer circular surface of the rotating shaft 212. The positioning platform 31 is located directly below the roller blind backdrop 211. One end of the rotating shaft 212 passes through a bearing assembly 213 and is connected to the power output end of the drive mechanism 22. The other end of the rotating shaft 212 is located inside another bearing assembly 213, which is fixed to the top of the uprights 214. The drive mechanism 22 can drive the rotating shaft 212 to rotate, thereby causing the roller blind backdrop 211 to rise and retract or fall and unfold. The bearing components of the bearing assembly 213 are NSK high-precision ball bearings (radial runout ≤0.01mm) used to support the positioning rotating shaft 212 and ensure that the rotating shaft 212 achieves smooth transmission. The height of the support column 214 is adjustable, and it is equipped with an anti-tipping counterweight at the bottom. The anti-tipping counterweight design of the support column 214 (base weight ≥ 20kg) and the anti-slip rubber layer (friction coefficient μ > 0.8) ensure the stability of the equipment during emergency movement and reduce the risk of operational interruption. Furthermore, the roller shutter backdrop 211 has an adjustable lifting speed (0.1-1m / s), and the backdrop can be switched within 3 seconds, which is 8 times more efficient than traditional backdrop laying and has rapid deployment capabilities.

[0035] Preferably, the roller blind background cloth 211 has a grid-like scale marking, which is printed with fluorescent material. A torso positioning centerline is located at the central axis of the roller blind background cloth 211. The grid-like scale marking design on the roller blind background cloth 211 serves as a reference for changes in the patient's body shape, allowing for a more intuitive representation of changes before and after treatment. Furthermore, the surface of the roller blind background cloth 211 is printed with a fluorescent grid, the grid markings of which are erasable and support personalized annotation. The torso positioning centerline can be marked with a red LED light strip. The fluorescent grid has a luminous intensity ≥300 cd / m². 2 It can still be clearly displayed in low light conditions, and with the 10cm×10cm standardized grid, the sensitivity of detecting changes in limb circumference before and after treatment is improved to the 3mm level.

[0036] Preferably, the image acquisition mechanism 1 includes a camera assembly 11 and a positioning bracket 12. The positioning bracket 12 holds the camera assembly 11. Several equally spaced camera position markers 13 are provided on the ground in front of the positioning platform 31, and the positioning bracket 12 is mounted on one of the camera position markers 13. The camera position markers 13 are spaced 50cm apart, and in conjunction with a laser ranging module (accuracy ±1mm), ensure consistent object distance during multi-angle shooting. The positioning bracket 12 adopts a tripod anti-sinking design (base contact area ≥400cm²). 2 This ensures that the shooting height fluctuation is less than 0.3 mm / hour. The positioning bracket 12 works in conjunction with the camera position marker 13 on the ground to ensure that parameters such as shooting height (error ±2cm), pitch angle (error ±0.3°), and focal length (fixed 35mm) are consistent throughout the entire process, achieving multi-dimensional parameter locking. Through the above settings, it is ensured that the position, height, and angle of the camera component 11 are consistent for each shooting.

[0037] Preferably, the image acquisition unit 1 uploads the acquired image data to the patient information database 5 for storage via the wireless transmission unit 4. The wireless transmission unit 4 supports the 802.11ac protocol with a transmission rate ≥867Mbps, ensuring efficient and stable data transmission, avoiding errors and omissions caused by manual data copying, and making data management more accurate, reliable, and efficient.

[0038] Preferably, the wireless transmission unit 4 integrates a QR code scanning module for matching patient file information. The QR code scanning module (with a recognition speed of <0.3s) automatically associates the patient ID with the captured image, eliminating identity confusion caused by manual annotation (error rate reduced from 12% to 0.2%), and achieving intelligent data association.

[0039] Preferably, the patient information database 5 transmits information with the hospital PACS system 6, and the DICOM format data is directly transmitted through the hospital PACS system 6. The patient information database 5 achieves direct transmission of DICOM data with the PACS system via the HL7 protocol (transmission delay <150ms), which reduces the image report generation time from the traditional 30 minutes to within 5 minutes, improving data processing efficiency.

[0040] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

[0041] It should be noted that any reference signs placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. This invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0042] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0043] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples. The above descriptions are merely preferred embodiments of this utility model, and all equivalent variations and modifications made within the scope of the claims of this utility model should fall within the coverage of this utility model.

Claims

1. A photographic device for patients with lymphedema, comprising an image acquisition mechanism (1), said image acquisition mechanism (1) being used to acquire image data of the patient, characterized in that: The photographic device for patients with lymphedema also includes a roll-up photographic background wall assembly (2) and a ground-based body position indicator platform (3); The ground position indicator platform (3) is located directly below the roller shutter-type photo backdrop assembly (2); The ground position indicator platform (3) includes a positioning platform (31) and two pairs of footprint markers (32) set on the positioning platform (31); The roller shutter-type photo backdrop assembly (2) includes a roller shutter-type backdrop assembly (21) and a drive mechanism (22); The power output end of the drive mechanism (22) is connected to the power input end of the roller blind background assembly (21). The drive mechanism (22) can drive the roller blind background assembly (21) to achieve lifting and rolling movements. The positioning platform (31) is located directly below the roller blind background component (21).

2. The photographic device for patients with lymphedema according to claim 1, characterized in that: The positioning platform (31) has a symmetrical center line in the middle; The center line of symmetry is aligned with the center line of torso positioning provided on the roller blind background assembly (21).

3. The photographic device for patients with lymphedema according to claim 2, characterized in that: The two pairs of footprint markers (32) are respectively configured as a footprint orientation indicator (321) and a footprint lateral orientation indicator (322); The positive footprint indicator (321) is located in the middle of the lateral footprint indicator (322).

4. The photographic device for patients with lymphedema according to claim 3, characterized in that: The footprint positioning indicator (321) includes two first foot positioning grooves (3211) formed on the positioning platform (31); The two first foot positioning grooves (3211) are symmetrically distributed on both sides of the center line of symmetry; The footprint side position indicator (322) includes two second foot positioning grooves (3221) formed on the positioning base (31); Two second foot positioning grooves (3221) are symmetrically distributed on both sides of the center line of symmetry; Both of the first foot positioning grooves (3211) are located between the two second foot positioning grooves (3221).

5. The photographic device for patients with lymphedema according to claim 1, characterized in that: The roller blind background assembly (21) includes a roller blind background cloth (211), a rotating shaft (212), two bearing assemblies (213), and two uprights (214); The top end of the roller blind background cloth (211) is fixed on the outer circular surface of the rotating shaft (212), and the positioning platform (31) is located directly below the roller blind background cloth (211). One end of the rotating shaft (212) passes through a bearing assembly (213) and is connected to the power output end of the drive mechanism (22), and the other end of the rotating shaft (212) is located in another bearing assembly (213); The bearing assembly (213) is fixed to the top of the column (214).

6. The photographic device for patients with lymphedema according to claim 5, characterized in that: The roller blind background cloth (211) is provided with checkered scale markings; The grid-like scale markings are printed with fluorescent material; The central axis of the roller blind background cloth (211) is provided with a torso positioning central axis.

7. The photographic device for patients with lymphedema according to claim 1, characterized in that: The image acquisition mechanism (1) includes a camera assembly (11) and a positioning bracket (12); The positioning bracket (12) holds the camera assembly (11); The positioning platform (31) has several equally spaced camera position markers (13) on the ground in front of it; The positioning bracket (12) is mounted on one of the camera position markers (13).

8. The photographic device for patients with lymphedema according to claim 1, characterized in that: The image acquisition mechanism (1) uploads the acquired image data to the patient information database (5) for storage via the wireless transmission unit (4).

9. The photographic device for patients with lymphedema according to claim 8, characterized in that: The wireless transmission unit (4) is equipped with a QR code scanning module for matching patient file information.

10. The photographic device for patients with lymphedema according to claim 8, characterized in that: The patient information database (5) transmits information to the hospital PACS system (6) and realizes direct transmission of DICOM format data through the hospital PACS system (6).

Images