Self-service bandage winding auxiliary device for lymphedema patient

Abstract

The invention relates to the technical field of medical instruments, in particular to a lymphedema patient self-service bandage winding auxiliary device which comprises a bandage winding part, an axial rotating part, a transverse moving part and an intelligent control part. The bandage winding part comprises a winding plate, a bandage positioning piece, a tensioning roller assembly and a winding plate driving assembly, the bandage positioning piece and the tensioning roller assembly are arranged on the winding plate, the winding plate is arranged on the winding plate driving assembly, an axial rotating part is arranged on the upper side of the winding plate driving assembly, and a transverse moving part is arranged on the axial rotating part; an intelligent control part is arranged on the transverse moving part, the intelligent control part is used for controlling cooperative work of the bandage winding part, the axial rotating part and the transverse moving part, and by means of reciprocating swing of the axial rotating part and front-back transverse movement of the transverse moving part, bandage winding of the lymphedema patient is achieved through a self-service gradient pressurization splayed binding method.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a self-service bandage wrapping aid for patients with lymphedema. Background Technology

[0002] Lymphedema refers to lymphatic obstruction, mainly caused by the accumulation of protein-containing edema fluid in the interstitial spaces due to obstructed or insufficient lymphatic return. It is most common in the upper and lower limbs. The occurrence and development of lymphedema is a chronic and complex pathophysiological process. Currently, lymphedema cannot be cured and requires appropriate intervention for improvement and management. The preferred approach is gradient pressure bandaging, which uses decreasing pressure from distal to proximal to promote centripetal lymphatic return. The figure-eight bandaging method is commonly used because it can create a directional pressure gradient.

[0003] Currently, bandaging patients with lymphedema requires experienced nurses to apply gradient pressure, which takes a long time and requires precise control of the crossing angle and pressure gradient. At present, most hospitals are still short of nursing staff, and the workload of staff is also heavy. Therefore, there is an urgent need for a bandage wrapping aid that can be used by lymphedema patients themselves, so that patients can wrap and bandage themselves to achieve the purpose of home care.

[0004] While reviewing the literature, the inventor found several technical solutions for bandage wrapping, such as a leg fracture auxiliary bandage wrapping bed for orthopedic departments disclosed in application number 2021107912145, which includes a bandage wrapping mechanism to wrap the bandage around the patient's leg; and an orthopedic trauma bandage auxiliary wrapping device disclosed in application number 202122201580.9, which uses a rotating motor to drive a threaded rod to rotate, which in turn drives a rotating ring to move, which in turn moves the bandage. With the automatic wrapping of the bandage, it is convenient to automatically wrap and bandage the patient's hand or leg. However, these technical solutions can only perform simple wrapping and bandaging, and cannot perform the gradient pressure bandaging required for patients with lymphedema, nor can they perform the figure-eight bandaging method. Furthermore, their portability is also problematic, making it difficult for patients to use them independently at home.

[0005] To address the needs of lymphedema patients for bandages, the inventors designed a self-service bandage wrapping aid device for lymphedema patients that can perform gradient pressure figure-eight bandages, allowing patients to wrap bandages themselves at home. Summary of the Invention

[0006] The purpose of this invention is to provide a self-service bandage wrapping aid for patients with lymphedema, to solve the problems mentioned in the background art. The specific technical solution is as follows:

[0007] To achieve the above and other related objectives, the present invention aims to provide a self-service bandage wrapping aid for patients with lymphedema, comprising a bandage wrapping part, an axial rotation part, a lateral movement part, and an intelligent control part; wherein,

[0008] The bandage winding unit includes a winding plate, a bandage positioning component, a tension roller assembly, and a winding plate drive assembly. The winding plate is equipped with the bandage positioning component and the tension roller assembly. The bandage positioning component is used to place the bandage. The winding plate drive assembly is equipped with the winding plate and is used to drive the winding plate to perform circumferential motion. An axial rotation part is provided on the upper side of the winding plate drive assembly. The axial rotation part is used to drive the winding plate drive assembly to rotate by a preset angle. A lateral movement part is provided on the axial rotation part. An intelligent control part is provided on the lateral movement part. The intelligent control part is used to control the coordinated operation of the bandage winding unit, the axial rotation part, and the lateral movement part.

[0009] Preferably, the winding board is a semi-enclosed arc-shaped board with an arc greater than that of a semicircle.

[0010] Preferably, the tension roller assembly includes a mounting plate, a damping roller shaft, an electrically adjustable rotary damper, a clamping component, a guide roller shaft, a pressure sensor, a first power supply module, and a wireless connection module. The mounting plate is mounted on the winding plate. The damping roller shaft is connected to the mounting plate via the electrically adjustable rotary damper. The clamping component is mounted on the mounting plate to ensure the bandage adheres tightly to the damping roller shaft. The guide roller shaft is connected to the mounting plate via the pressure sensor. After the bandage is led out from the bandage positioning component, it passes around the damping roller shaft and the guide roller shaft in sequence and enters the winding plate through a notch in the winding plate. The pressure sensor is used to detect the pressure on the guide roller shaft. The pressure sensor is wirelessly connected to the intelligent control unit. The first power supply module is electrically connected to the pressure sensor, the electrically adjustable rotary damper, and the wireless connection module to provide power. The wireless connection module is electrically connected to the pressure sensor and the electrically adjustable rotary damper. The wireless connection module is wirelessly connected to the intelligent control unit to send the data detected by the pressure sensor and the operating status of the electrically adjustable rotary damper to the intelligent control unit.

[0011] Preferably, the winding plate drive assembly includes a drive frame, limit guide wheels, drive gears, racks, and drive motors. The drive frame is provided with multiple sets of limit guide wheels, and the top of the drive frame is provided with an axial rotating part. The limit guide wheels are tumblingly connected to the winding plate and are used to limit the winding plate. The rack is a semi-enclosed arc-shaped rack with an arc greater than a semicircle and is connected to the winding plate. There are at least two sets of drive gears and drive motors. The two drive motors are respectively arranged on the lower left and lower right sides of the drive frame. The drive motors are provided with drive gears. When the winding plate rotates, at least one of the two drive gears will mesh with the rack.

[0012] Preferably, the electrically adjustable rotary damper is a magnetorheological rotary damper.

[0013] Preferably, the intelligent control unit is configured as follows:

[0014] The control lateral movement part drives the axial rotation part to move to the initial position of the distal end of the limb, the electric adjustable rotary damper of the tension roller assembly starts pre-tensioning, and the pressure sensor enters real-time detection state.

[0015] The drive motor rotates the winding plate to tighten the bandage, and the axial rotation part adjusts the preset angle of the winding plate's swing.

[0016] The lateral movement part moves a preset distance towards the proximal end of the limb;

[0017] The drive motor rotates the winding plate 1.5 times to complete the winding of the upper half of the figure-eight shape;

[0018] The axial rotation part adjusts the angle corresponding to the opposite swing direction of the winding plate;

[0019] The lateral movement part moves back a preset distance to the distal end of the limb;

[0020] The drive motor drives the winding plate to rotate 1.5 times to complete the cross winding of the lower half of the figure eight. The winding is repeated. During the winding process, the distance that the lateral moving part moves towards the proximal end of the limb gradually increases according to the preset range, and the return movement also gradually increases according to the preset range.

[0021] Throughout the bandaging process, the intelligent control unit receives pressure sensor data at a preset frequency. Based on the received pressure information, it uses PID control to adjust the electrically adjustable rotary damper, achieving a gradual reduction in pressure from the distal to the proximal end of the limb during wrapping.

[0022] If the detected pressure is less than the preset threshold: increase the coil current of the electrically adjustable rotary damper to increase the bandage tension;

[0023] If the detected pressure is greater than the preset threshold: reduce the coil current and decrease the bandage tension;

[0024] After the joint area is bandaged, the axially rotating part is reset, and the drive motor drives the wrapping plate to continue rotating, thus fixing the end of the bandage.

[0025] Preferably, the intelligent control unit further includes an image acquisition unit and an image processing unit. The image acquisition unit is used to capture images of the figure-eight bandage in real time. The image acquisition unit is mounted on the drive frame. The image processing unit is used to analyze the captured images of the bandage to obtain the edge spacing data of the figure-eight bandage. The intelligent control unit is also configured to: compare the target spacing with the edge spacing, automatically adjust the lateral movement stroke and axial rotation angle of the next segment; repeat the above steps until the joint area is covered, and the spacing gradually increases from the far end to the near end.

[0026] Preferably, the end of the lateral moving part is provided with a support frame for supporting the hand or foot.

[0027] The present invention provides a self-service bandage wrapping aid device for patients with lymphedema, which has the following beneficial effects:

[0028] This invention comprises a bandage wrapping section, an axial rotation section, a lateral movement section, and an intelligent control section. The bandage wrapping section wraps the bandage around the patient's limb, while the intelligent control section controls the bandage wrapping section, the axial rotation section, and the lateral movement section to work together. By relying on the reciprocating swing of the axial rotation section and the forward and backward lateral movement of the lateral movement section, the patient with lymphedema can achieve a self-service gradient pressure figure-eight bandage wrapping method. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the bandage wrapping part;

[0032] Figure 3 yes Figure 2 The right view;

[0033] Figure 4 It is the winding route of the bandage in the bandage wrapping section. Detailed Implementation

[0034] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a self-service bandage wrapping aid device for patients with lymphedema, as proposed in this invention. The advantages and features of the invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0035] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the state, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0037] like Figure 1 As shown, a self-service bandage wrapping aid for patients with lymphedema includes a bandage wrapping part 1, an axial rotation part 2, a lateral movement part 3, and an intelligent control part 4. The bandage wrapping part 1 is used to control the rotation of the bandage wrapping part 1 to wrap the bandage around the patient's limb. The axial rotation part 2 is provided on the bandage wrapping part 1, and the axial rotation part 2 is used to drive the wrapping plate drive assembly to rotate a certain angle. The lateral movement part 3 is provided on the axial rotation part 2, and the intelligent control part 4 is provided on the lateral movement part 3.

[0038] In some embodiments, the bandage wrapping portion 1 includes:

[0039] like Figure 2 As shown, in some embodiments, the wrapping plate 11 is a cylindrical structure, and the patient needs to pass the leg or hand through the wrapping plate 11. In other embodiments, the wrapping plate 11 is a semi-enclosed arc plate with an arc greater than a semicircle. The wrapping plate 11 in this embodiment can be placed directly on the patient's leg or arm, making it more convenient to use.

[0040] Bandage positioning member 12 is disposed on the winding plate 11 and is used for placing bandages. In some embodiments, the bandage positioning member 12 has a cylindrical structure and directly places the bandage roll. The side of the bandage positioning member 12 has a bandage outlet. In other embodiments, the bandage positioning member 12 has a T-shaped structure and is used to pass through the center of the bandage roll and fix the bandage roll.

[0041] like Figure 2-4As shown, the tension roller assembly 13 is mounted on the winding plate 11 and is used to tension the bandage and provide resistance. The tension roller assembly 13 includes a mounting plate 131, a damping roller shaft 132, an electrically adjustable rotary damper 133, a clamping element 134, a guide roller shaft 135, a pressure sensor, a first power supply module 136, and a wireless connection module. The mounting plate 131 is mounted on the winding plate 11. The damping roller shaft 132 is connected to the mounting plate 131 via the electrically adjustable rotary damper 133, which is used to adjust the damping magnitude of the damping roller shaft 132. The clamping element 134 is mounted on the mounting plate 131 and is used to make the bandage adhere tightly to the damping roller shaft 132. The guide roller shaft 135... 5. The bandage is led out from the bandage positioning member 12 via the pressure sensor connected to the mounting plate 131, passes around the damping roller 132 and the guide roller 135 in sequence, and enters the winding plate 11 through the notch opened on the winding plate 11. The pressure sensor is used to detect the pressure on the guide roller 135. The pressure sensor is wirelessly connected to the intelligent control unit 4. The electrically adjustable rotary damper 133 can be a magnetorheological rotary damper. By adjusting the current intensity of the built-in coil, the magnetic field intensity is controlled, thereby changing the viscosity of the magnetorheological fluid and realizing the adjustment of damping. It has the characteristics of fast response speed and wide torque range. The electrically adjustable rotary damper 133 can also be an electromagnetic rotary damper, a motor-driven damper, etc.

[0042] The first power supply module 136 is electrically connected to the pressure sensor, the electrically adjustable rotary damper 133, and the wireless connection module to provide power.

[0043] The wireless connection module is electrically connected to the pressure sensor and the electrically adjustable rotary damper 133, and wirelessly connected to the intelligent control unit 4 to send the data detected by the pressure sensor and the working status of the electrically adjustable rotary damper 133 to the intelligent control unit 4.

[0044] The winding plate drive assembly 14 has a winding plate 11 mounted on it for driving the winding plate 11 to perform circular motion. The winding plate drive assembly 14 includes a drive frame 141, limiting guide wheels 142, a drive gear 143, a rack 144, and a drive motor 145. The drive frame 141 has multiple sets of limiting guide wheels 142, which are tactilely connected to the winding plate 11 and used for limiting the winding plate 11. When the winding plate 11 has a cylindrical structure, the rack 144 has an annular structure and is mounted on the winding plate 11. The drive gear 143 is mounted on the drive motor. On 145, drive gear 143 meshes with rack 144, and drive motor 145 is mounted on drive frame 141. When the winding plate 11 is a semi-enclosed arc plate with an arc greater than half a circle, rack 144 is a semi-enclosed arc rack 144 with an arc greater than half a circle and is connected to winding plate 11. There are at least two sets of drive gear 143 and drive motor 145. The two drive motors 145 are respectively arranged on the lower left and lower right sides of drive frame 141. Drive gear 143 is mounted on drive motor 145. When winding plate 11 rotates, at least one of the two drive gears 143 will mesh with rack 144.

[0045] The top of the drive frame 141 is provided with an axial rotation part 2. The axial rotation part 2 is a servo motor with high precision angle control, high torque density, compact and lightweight, and fast dynamic response. The lateral movement part 3 is a linear motor.

[0046] The intelligent control unit 4 is wirelessly connected to the wireless connection module. The intelligent control unit 4 is used to control the operation of the servo motor, linear motor, drive motor 145, and electrically adjustable rotary damper 133. The intelligent control unit 4 includes a mode setting unit, which is used by the user to select the winding method and set the winding start pressure and end pressure.

[0047] During operation, when the user selects the figure-eight wrapping method, the operator first manually wraps the patient's feet or hands, then places the bandage on the bandage positioning component 12, and passes the head of the bandage through the tension roller assembly 13. The intelligent control unit 4 controls the lateral movement unit 3 to drive the axial rotation unit 2 to move to the initial position at the distal end of the limb. The electrically adjustable rotary damper 133 of the tension roller assembly 13 starts pre-tensioning, the pressure sensor enters real-time detection mode, and the drive motor 145 drives the wrapping plate 11 to rotate one revolution, completing the tensioning of the bandage. The axial rotation unit 2 adjusts the swing of the wrapping plate 11 to a certain angle, for example, 15° for the leg and 10° for the arm; the lateral movement... The moving part 3 moves a certain distance towards the proximal end of the limb, for example, 2-3 cm for the leg and 1.5-2 cm for the arm; the drive motor 145 drives the winding plate 11 to rotate 1.5 times to complete the upper half of the figure-eight wrapping; the axial rotation part 2 adjusts the winding plate 11 to swing in the opposite direction at the corresponding angle; the lateral movement part 3 moves back 1 cm towards the distal end of the limb; the drive motor 145 drives the winding plate 11 to rotate 1.5 times to complete the lower half of the figure-eight cross wrapping, and repeats the process. During the wrapping process, the spacing of the figure-eight bandage from the distal end of the limb to the proximal end of the limb should gradually increase, that is, the distance that the lateral movement part 3 moves towards the proximal end of the limb should gradually increase, and the return movement should also gradually increase.

[0048] Throughout the wrapping process, the intelligent control unit 4 receives pressure sensor data every 50ms. Based on the received pressure information, it uses PID control to adjust the electrically adjustable rotary damper 133 to achieve wrapping with gradually decreasing pressure from the distal to the proximal end of the limb.

[0049] If the detected pressure is less than the preset threshold: increase the coil current of the electrically adjustable rotary damper 133 to increase the bandage tension;

[0050] If the detected pressure is greater than the preset threshold: reduce the coil current and decrease the bandage tension;

[0051] After the joint area is bandaged, the drive motor 145 drives the wrapping plate 11 to rotate 2 revolutions to fix the end of the bandage.

[0052] In some embodiments, such as Figure 4As shown, the intelligent control unit 4 also includes an image acquisition unit 41 and an image processing unit. The image acquisition unit 41 is used to capture images of the figure-eight bandage in real time. The image acquisition unit 41 is mounted on the drive frame 141. The image processing unit is used to analyze the captured bandage images to obtain the edge spacing data of the figure-eight bandage. Specifically, the image is first subjected to grayscale conversion, threshold segmentation, edge enhancement, and other operations to highlight the contrast between the bandage and the limb skin. The OpenCV contour detection algorithm is used to identify the continuous contour of the bandage and calculate the edge spacing of adjacent bandage contours. The intelligent control unit 4 compares the target spacing with the edge spacing and automatically adjusts the lateral movement stroke and axial rotation angle of the next segment. The above steps are repeated until the joint area is covered, and the spacing gradually increases from the far end to the near end.

[0053] In some embodiments, such as Figure 1 As shown, the linear motor is provided with a support frame 31 for supporting the hand or foot.

[0054] The intelligent control unit 4 can also be equipped with a touch screen or connected to a mobile phone via a WiFi module to view the winding process.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A self-service bandage wrapping aid device for patients with lymphedema, characterized in that: It includes a bandage wrapping section, an axial rotation section, a lateral movement section, and an intelligent control section; among which, The bandage winding unit includes a winding plate, a bandage positioning component, a tension roller assembly, and a winding plate drive assembly. The winding plate is equipped with the bandage positioning component and the tension roller assembly. The bandage positioning component is used to place the bandage. The winding plate drive assembly is equipped with the winding plate and is used to drive the winding plate to perform circumferential motion. An axial rotation part is provided on the upper side of the winding plate drive assembly. The axial rotation part is used to drive the winding plate drive assembly to rotate by a preset angle. A lateral movement part is provided on the axial rotation part. An intelligent control part is provided on the lateral movement part. The intelligent control part is used to control the coordinated operation of the bandage winding unit, the axial rotation part, and the lateral movement part.

2. The self-service bandage wrapping auxiliary device for patients with lymphedema according to claim 1, characterized in that, The spiral wound board is a semi-enclosed arc-shaped board with an arc greater than a semicircle.

3. The self-service bandage wrapping auxiliary device for patients with lymphedema according to claim 1, characterized in that, The tension roller assembly includes a mounting plate, a damping roller shaft, an electrically adjustable rotary damper, a clamping component, a guide roller shaft, a pressure sensor, a first power supply module, and a wireless connection module. The mounting plate is mounted on the winding plate. The damping roller shaft is connected to the mounting plate via the electrically adjustable rotary damper. The clamping component is mounted on the mounting plate to ensure the bandage adheres tightly to the damping roller shaft. The guide roller shaft is connected to the mounting plate via the pressure sensor. After the bandage is led out from the bandage positioning component, it passes around the damping roller shaft and the guide roller shaft in sequence and enters the winding plate through a notch in the winding plate. The pressure sensor is used to detect the pressure on the guide roller shaft and is wirelessly connected to the intelligent control unit. The first power supply module is electrically connected to the pressure sensor, the electrically adjustable rotary damper, and the wireless connection module to provide power. The wireless connection module is also electrically connected to the pressure sensor and the electrically adjustable rotary damper, and is wirelessly connected to the intelligent control unit to send the data detected by the pressure sensor and the operating status of the electrically adjustable rotary damper to the intelligent control unit.

4. The self-service bandage wrapping auxiliary device for patients with lymphedema according to claim 2, characterized in that, The winding plate drive assembly includes a drive frame, limit guide wheels, drive gears, racks, and drive motors. The drive frame is equipped with multiple sets of limit guide wheels, and the top of the drive frame is equipped with an axial rotating part. The limit guide wheels are rolledly connected to the winding plate and are used to limit the winding plate. The rack is a semi-enclosed arc-shaped rack with an arc greater than a semicircle and is connected to the winding plate. There are at least two sets of drive gears and drive motors. The two drive motors are respectively arranged on the lower left and lower right sides of the drive frame. The drive motors are equipped with drive gears. When the winding plate rotates, at least one of the two drive gears will mesh with the rack.

5. The self-service bandage wrapping aid device for patients with lymphedema according to claim 3, characterized in that, The electrically adjustable rotary damper is a magnetorheological rotary damper.

6. The self-service bandage wrapping auxiliary device for patients with lymphedema according to claim 3, characterized in that, The intelligent control unit is configured as follows: The control lateral movement part drives the axial rotation part to move to the initial position of the distal end of the limb, the electric adjustable rotary damper of the tension roller assembly starts pre-tensioning, and the pressure sensor enters real-time detection state. The drive motor rotates the winding plate to tighten the bandage, and the axial rotation part adjusts the preset angle of the winding plate's swing. The lateral movement part moves a preset distance towards the proximal end of the limb; The drive motor rotates the winding plate 1.5 times to complete the winding of the upper half of the figure-eight shape; The axial rotation part adjusts the angle corresponding to the opposite swing direction of the winding plate; The lateral movement part moves back a preset distance to the distal end of the limb; The drive motor drives the winding plate to rotate 1.5 times to complete the cross winding of the lower half of the figure eight. The winding is repeated. During the winding process, the distance that the lateral moving part moves towards the proximal end of the limb gradually increases according to the preset range, and the return movement also gradually increases according to the preset range. Throughout the bandaging process, the intelligent control unit receives pressure sensor data at a preset frequency. Based on the received pressure information, it uses PID control to adjust the electrically adjustable rotary damper, achieving a gradual reduction in pressure from the distal to the proximal end of the limb during wrapping. If the detected pressure is less than the preset threshold: increase the coil current of the electrically adjustable rotary damper to increase the bandage tension; If the detected pressure is greater than the preset threshold: reduce the coil current and decrease the bandage tension; After the joint area is bandaged, the axially rotating part is reset, and the drive motor drives the wrapping plate to continue rotating, thus fixing the end of the bandage.

7. A self-service bandage wrapping aid device for patients with lymphedema according to claim 6, characterized in that, The intelligent control unit also includes an image acquisition unit and an image processing unit. The image acquisition unit is used to capture images of the figure-eight bandage in real time. The image acquisition unit is mounted on the drive frame. The image processing unit is used to analyze the captured images of the bandage to obtain the edge spacing data of the figure-eight bandage. The intelligent control unit is also configured to: compare the target spacing with the edge spacing, automatically adjust the lateral movement stroke and axial rotation angle of the next segment; repeat the above steps until the joint area is covered, and the spacing gradually increases from the far end to the near end.

8. The self-service bandage wrapping auxiliary device for patients with lymphedema according to claim 1, characterized in that, The end of the lateral moving part is provided with a support frame for supporting the hand or foot.

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