Multi-point accurate measurement device for upper limb lymphedema

Abstract

An upper limb lymphedema multi-point accurate measuring device comprises a vertical flexible rule which is provided with longitudinal scale marks in the length direction, and the longitudinal scale marks are used for recording the fixing position of a transverse flexible rule; a plurality of transverse flexible rulers, wherein each transverse flexible ruler is connected to the vertical flexible ruler in a sliding manner; one end of the transverse flexible rule is fixedly connected with the vertical flexible rule through a magic tape; the vertical flexible rule and the transverse flexible rule are respectively provided with a winding device which is used for respectively recovering the vertical flexible rule and the transverse flexible rule from an unfolded state to a wound state; transverse scale marks are arranged on the transverse flexible rule and are used for measuring perimeter data; an adhesive material is arranged on the back face of the vertical flexible ruler and used for being attached to the upper limb of a patient so as to keep the stability of the measuring position. According to the utility model, the problems of inconsistent positioning of measurement points, sliding displacement of the device, poor measurement repeatability and complex operation in the measurement process are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical devices, concretely relates to a upper limb lymphedema multi-point precision measuring device. BACKGROUND

[0002] Upper limb lymphedema is a common complication of postoperative patients with breast cancer, mainly manifested as abnormal increase of the volume and circumference of the upper limbs. In order to evaluate the severity of lymphedema and develop appropriate treatment programs, the circumference of multiple measurement points on the upper limbs of patients usually needs to be accurately measured in clinical practice. However, the existing measuring devices and methods have many shortcomings.

[0003] At present, ordinary soft rulers are commonly used for manual measurement in clinical practice. This method not only consumes time and effort, but also leads to poor repeatability and accuracy of measurement results due to inconsistent positioning of measurement points. In addition, ordinary soft rulers are prone to sliding or shifting during measurement, especially in the presence of sweat or other liquids on the surface of the patient's upper limbs, which further exacerbates the instability of measurement results. Furthermore, since ordinary soft rulers cannot be fixed at multiple locations simultaneously, medical personnel need to repeatedly adjust measurement points and record data, increasing the complexity of operation and the probability of errors.

[0004] Although some measurement tools attempt to improve the accuracy of measurement by setting scale marks or adding fixed structures for measurement points, these devices often lack flexibility. For example, some existing devices use a fixed scale point design, but they cannot adapt to the specific size and shape of different patients' upper limbs, and cannot meet the demand for multi-point accurate measurement. At the same time, some devices use hard materials or complex structural designs, which increase the discomfort of patients and the production cost of equipment. In addition, there is currently a lack of devices that can be conveniently stored after measurement is completed, making it inconvenient to manage and store the equipment after measurement.

[0005] In summary, the existing technology has the following problems in the multi-point accurate measurement of upper limb lymphedema: the measurement process is tedious and it is difficult to ensure the consistency of measurement points, with poor repeatability and accuracy; the existing devices are prone to sliding or shifting, especially in a sweat or liquid environment; lack of flexibility and adaptability, making it difficult to meet the individualized measurement needs of different patients; the equipment lacks a convenient storage structure, making it inconvenient to store after operation is completed; hard materials or complex designs can cause patient discomfort and increase equipment manufacturing costs. Therefore, there is an urgent need for an upper limb lymphedema multi-point accurate measurement device that is simple in structure, easy to operate and can adapt to the needs of different patients. UTILITY MODEL CONTENTS

[0006] The utility model provides an upper limb lymphedema multi-point precision measuring device to effectively solve the problems of inconsistent positioning of measurement points, device sliding and shifting, poor measurement repeatability and complex operation during measurement.

[0007] The utility model discloses a technical scheme that is adopted to solve the above-mentioned problems:

[0008] A upper limb lymphedema multi-point precision measuring device, it includes:

[0009] A vertical flexible ruler is provided with longitudinal scale marks along the length direction, and the longitudinal scale marks are used for recording the fixed position of the horizontal flexible ruler;

[0010] A plurality of horizontal flexible rulers are slidably connected to the vertical flexible ruler;

[0011] One end of the horizontal flexible ruler is connected and fixed with the vertical flexible ruler through magic tape;

[0012] The vertical flexible ruler and the horizontal flexible ruler are all provided with winding devices, which are used for recovering the vertical flexible ruler and the horizontal flexible ruler from the unfolded state to the wound state respectively;

[0013] The horizontal flexible ruler is provided with horizontal scale marks, which are used for measuring the circumference data;

[0014] The back of the vertical flexible ruler is provided with an adhesive material, which is used for adhering to the upper limb of a patient to keep the stability of the measuring position.

[0015] Preferably, the winding devices are arranged at the ends of the vertical flexible ruler and the horizontal flexible ruler respectively, each winding device is provided with a spiral spring, the head end of the spiral spring is fixed to the inner wall of the spring reel, and the head end and the tail end of the spiral spring are connected to the tail end of the vertical flexible ruler and the horizontal flexible ruler respectively.

[0016] Preferably, the winding device includes a locking mechanism, the locking mechanism includes a knob connected to the shell of the winding device through threads, a friction pad made of rubber or polyurethane material with high friction coefficient is arranged in the winding device, and the knob is connected to the friction pad through the winding device.

[0017] Preferably, the vertical flexible ruler and the horizontal flexible ruler are both made of flexible polyurethane material.

[0018] Preferably, the longitudinal scale marks on the vertical flexible ruler and the horizontal scale marks on the horizontal flexible ruler are both made of wear-resistant polyimide coating, the font and scale lines of the longitudinal scale marks and the horizontal scale marks are embedded and engraved in the inner surface of the coating through laser engraving technology, and the width of the scale lines is 0.5mm to 1.0mm.

[0019] Preferably, one end of the horizontal flexible ruler is provided with an annular fixing part, the annular fixing part forms a closed ring structure, and is used for sleeving on the vertical flexible ruler.

[0020] The inner side surface of the annular fixing part is provided with a magic tape, and the adhering surface of the magic tape is distributed along the inner periphery of the annular fixing part;

[0021] The outer surface of the vertical flexible ruler is continuously provided with an adhering area corresponding to the magic tape along the length direction of the vertical flexible ruler;

[0022] When the annular fixing part is sleeved on the vertical flexible ruler, the sliding of the horizontal flexible ruler is limited by the mutual cooperation of the magic tape and the adhering area on the outer surface of the vertical flexible ruler, and relative fixation is realized.

[0023] Preferably, the back surface of the vertical flexible ruler is provided with an adhering material layer; the adhering material layer is integrally formed by a flexible silica gel material, and the surface is uniformly distributed with fine convex point structures.

[0024] The utility model discloses novel structure, clever idea, simple and convenient operation, and has the following advantages compared with prior art:

[0025] 1) accurate measurement, high stability: the device ensures the accurate positioning of measurement through the sliding connection design of the longitudinal scale mark on the vertical flexible ruler and the horizontal flexible ruler. Each horizontal flexible ruler is fixed to the vertical flexible ruler by magic tape, avoiding measurement errors caused by sliding or displacement. The adhering material layer on the back surface of the vertical flexible ruler can effectively fit the upper limbs of the patient, ensuring the stability of the position during measurement.

[0026] 2) convenient storage and locking design, improving operation efficiency: the device is provided with a winding device at the end of the vertical flexible ruler and the horizontal flexible ruler, and the design of the spiral spring and the locking mechanism enables the flexible ruler to recover from the unfolded state to the wound state. The friction pad and knob design in the winding device enable the flexible ruler to be easily retracted and fixed, not only improving the convenience of operation, but also making the storage of the equipment more efficient, avoiding tedious manual operation.

[0027] 3) strong adaptability and high comfort: the vertical flexible ruler and the horizontal flexible ruler are made of flexible polyurethane material, which can adapt to the shape and size of different patients' upper limbs, increasing the flexibility and adaptability of the equipment. In addition, the adhering material layer on the back surface of the vertical flexible ruler is integrally formed by flexible silica gel material, and the surface is uniformly distributed with fine convex point structures, which can firmly fit the skin of the patient, enhance the comfort and reduce the discomfort, suitable for long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 It is an isometric view of the upper limb lymphedema multi-point accurate measurement device of the utility model.

[0029] Fig. 2 It is a structure view of the winding device of the upper limb lymphedema multi-point accurate measurement device of the utility model.

[0030] In the attached diagram: 1-Vertical measuring tape, 2-Horizontal measuring tape, 4-Rewinding device, 12-Vertical scale mark, 21-Horizontal scale mark, 42-Helical spring, 44-Locking mechanism, 441-Knob, 442-Friction pad, 23-Annular fixing part. Detailed Implementation

[0031] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0032] like Figs. 1-2 As shown, this utility model provides a multi-point precise measurement device for upper limb lymphedema. The device includes a vertical flexible ruler 1 and multiple horizontal flexible rulers 2. The vertical flexible ruler 1 has longitudinal graduation marks 12 along its upper length. These graduation marks 12 help record the fixed position of the horizontal flexible rulers 2 on the vertical flexible ruler, ensuring consistent positioning during measurement and avoiding errors. The horizontal flexible rulers 2 and the vertical flexible ruler 1 are slidably connected, allowing the horizontal flexible rulers to move freely on the vertical flexible ruler as needed to accommodate different patients' upper limb sizes. One end of the horizontal flexible ruler 2 is connected and fixed to the vertical flexible ruler 1 via Velcro. This design ensures that the horizontal flexible ruler 2 is firmly fixed during measurement and is not easily displaced, further guaranteeing measurement accuracy.

[0033] For ease of use, this invention provides a winding device 4 at the ends of both the vertical measuring tape 1 and the horizontal measuring tape 2. The winding device 4 contains a helical spring 42. When the vertical measuring tape 1 or the horizontal measuring tape 2 is stretched, the helical spring 42 stores elastic potential energy. When released, the winding device 4 automatically returns the measuring tape to its wound state, thus avoiding the problems of the measuring tape being easily misplaced and difficult to store in traditional measuring devices.

[0034] In addition, the back of the vertical measuring tape 1 is equipped with an adhesive material, which allows the tape to adhere firmly to the surface of the patient's upper limb, maintaining the stability of the measurement position and avoiding measurement errors caused by factors such as patient movement or sweat. The horizontal measuring tape 2 is also equipped with horizontal scale markings 21 for accurately measuring the circumference of the patient's upper limb, providing accurate measurement values ​​for clinical use.

[0035] The winding device 4 is arranged at the end of the vertical flexible ruler 1 and the horizontal flexible ruler 2 respectively, which can effectively wind the flexible ruler during use, and avoid the problem of disorder or difficult storage after measurement. Each winding device 4 comprises a spiral spring 42, the first end of which is fixed to the inner wall of the spring reel 41, and the other end is connected to the tail end of the flexible ruler. Specifically, the first end of the spiral spring 42 is fixed to the inner wall of the spring reel 41, so that the spring reel becomes the support point of the spring. The tail end of the spiral spring 42 is connected to the tail end of the vertical flexible ruler 1 and the horizontal flexible ruler 2 respectively, and the tension of the spring is transmitted to the flexible ruler through the connecting piece.

[0036] When the vertical flexible ruler 1 or the horizontal flexible ruler 2 is stretched, the spiral spring 42 stores elastic potential energy, providing a certain tension and restoring force. This enables the spiral spring to automatically drive the spring reel 41 to rotate and quickly and neatly wind the flexible ruler into the winding device 4 when the medical staff completes the measurement and releases the flexible ruler during use, avoiding the influence of the subsequent use or storage due to the hanging or curling of the flexible ruler. The automatic winding function of the winding device not only improves the convenience of the equipment, but also reduces the interference to the operator during measurement.

[0037] The winding device 4 comprises a locking mechanism 44, which is designed to ensure that the horizontal flexible ruler 2 can be stably fixed during use, avoiding measurement errors or operational inconvenience caused by unstable or loose winding devices. The locking mechanism 44 comprises a knob 441 and a friction pad 442, and the knob 441 is connected to the housing of the winding device 4 by threads. The knob 441 is designed to facilitate the user to adjust the locking and releasing state of the winding device by rotating. Specifically, the knob 441 is firmly connected to the housing of the winding device 4 by threads, and when the knob is rotated, the friction between the friction pad 442 and the surface of the flexible ruler can be adjusted.

[0038] The friction pad 442 is located inside the winding device 4 and is made of rubber or polyurethane material with high friction coefficient, which can produce sufficient contact with the surface of the horizontal flexible ruler 2 when the knob is rotated, thereby generating sufficient friction to fix the position of the horizontal flexible ruler 2. The material and structural characteristics of the friction pad 442 enable it to effectively limit the sliding of the flexible ruler when pressure is applied, preventing it from loosening due to external force, and ensuring that the fixed position of the horizontal flexible ruler 2 does not change during measurement. In particular, the friction pad 442 can effectively avoid the problem of inaccurate measurement caused by insufficient friction during use.

[0039] When the knob 441 is rotated, the knob moves axially through the threads, applying pressure to the friction pad 442, which comes into contact with the surface of the transverse flexible ruler 2 and fixes the position of the flexible ruler through friction. When the knob is rotated in the opposite direction, the friction pad 442 is released from contact with the flexible ruler, reducing the friction and allowing the transverse flexible ruler 2 to slide freely. This locking mechanism can ensure that the flexible ruler is accurately fixed as needed during measurement, and it is easy to quickly unlock and retract after use.

[0040] The vertical flexible ruler 1 and the transverse flexible ruler 2 are both made of flexible polyurethane material, which has good flexibility, wear resistance and tensile strength, can adapt to the shape of the upper limbs of different patients, and can maintain its performance stability during multiple uses. The use of polyurethane material not only ensures the long-term durability of the flexible ruler, but also enhances the comfort of the flexible ruler during measurement, avoiding the discomfort caused by traditional hard materials. In addition, the flexible nature of the polyurethane material also allows the flexible ruler to flexibly fit the patient's skin, ensuring the accuracy of the measurement.

[0041] In the design of the vertical flexible ruler 1 and the transverse flexible ruler 2, the longitudinal scale marks 12 and the transverse scale marks 21 are respectively located on the surface of the flexible ruler for accurately recording measurement data. These scale marks are made of a wear-resistant polyimide coating, which not only has excellent wear resistance, but also effectively prevents the scale marks from falling off or wearing out during use, thereby prolonging the service life of the flexible ruler. The use of polyimide coating ensures the stability and clarity of the scale marks during long-term use.

[0042] In addition, the font and scale lines of the longitudinal scale marks 12 and the transverse scale marks 21 are precisely embedded on the inner surface of the coating through laser engraving technology. Laser engraving technology can achieve high-precision scale lines, ensuring that the width of each scale line is between 0.5mm and 1.0mm, achieving optimal readability and detail accuracy. This technology not only improves the durability of the scale, but also avoids the falling or blurring problems that may occur with traditional printing or pasting marks, ensuring accurate data for each measurement.

[0043] One end of the transverse flexible ruler 2 is provided with an annular fixing part 23, which is designed to form a closed ring structure for securely sleeving the transverse flexible ruler 2 on the vertical flexible ruler 1, ensuring that the transverse flexible ruler does not shift or slide during measurement. The annular fixing part 23 not only ensures the stability of the connection between the transverse flexible ruler 2 and the vertical flexible ruler 1, but also has structural flexibility, making it easy for users to quickly install or remove the flexible ruler as needed, greatly improving the convenience of use.

[0044] The inner side surface of the annular fixing part 23 is provided with a magic tape, and the adhesive surface of the magic tape is distributed along the inner periphery of the annular fixing part 23. The selection of the magic tape enables the device to provide sufficient friction during use to ensure that the flexible ruler is fixed and not easily displaced during measurement. The magic tape design on the inner side can ensure reliable cooperation with the adhesive area of the magic tape nappe material on the outer surface of the vertical flexible ruler 1, and enhance the fixing effect. The use of magic tape not only provides strong adhesion, but also enables users to conveniently adjust the fixed position of the horizontal flexible ruler according to their needs, improving the flexibility of use.

[0045] The outer surface of the vertical flexible ruler 1 is continuously provided with an adhesive area corresponding to the magic tape along the length direction, which is made of magic tape nappe material and can be firmly bonded with the magic tape to prevent the fixed position from being unstable due to friction or external force during use. This design can effectively limit the sliding of the horizontal flexible ruler 2, ensure the accuracy of each measurement, and avoid errors caused by displacement of the flexible ruler.

[0046] The back of the vertical flexible ruler 1 is provided with an adhesive material layer, which is designed to provide sufficient adhesion to ensure that the vertical flexible ruler can be firmly attached to the surface of the patient's upper limb, avoiding the displacement of the flexible ruler due to the patient's activity or body position change. The adhesive material layer is integrally formed of flexible silicone material, and silicone is a soft and slightly adhesive material that can adapt to the curved shape of the patient's skin, providing stable and comfortable attachment. The use of flexible silicone material not only ensures the stability of the flexible ruler, but also ensures that the patient will not feel uncomfortable or irritation during measurement, improving the comfort of the patient.

[0047] In addition, the surface of the adhesive material layer is uniformly distributed with fine convex point structures. This structure design increases the friction between the contact surface and the skin, improving the stability of the adhesion. The fine convex point structure not only strengthens the contact with the skin without adding too much additional pressure, but also effectively reduces the sliding friction, further preventing the flexible ruler from moving during use, thereby ensuring the accuracy of the measurement results. Especially in the measurement of diseases such as upper limb lymphedema, this design can avoid the sliding phenomenon caused by skin sweating or other factors, ensuring stable measurement.

[0048] In use, first of all, ensure that the measurement area is clean and dry, so as to avoid sweat or grease affecting the adhesion of the adhesive material layer. ①Take out the upper limb lymphedema multi-point precision measurement device, check whether the vertical flexible ruler 1 and the horizontal flexible ruler 2 are intact, and ensure that the winding device of the flexible ruler is in the locked state to avoid accidental retraction before use. ②The back of the vertical flexible ruler 1 is attached to the skin of the patient's upper limb, and attention should be paid to selecting the measurement site and making appropriate adjustments as needed. The back of the vertical flexible ruler can ensure that the flexible ruler is firmly attached to the skin, avoiding sliding or displacement during measurement. ③Next, one end of the horizontal flexible ruler 2 is inserted into the annular fixing part 23 of the vertical flexible ruler 1, and the annular fixing part 23 of the horizontal flexible ruler is slid along the surface of the vertical flexible ruler 1, ensuring that the fixing part can be docked with the Velcro adhesion area on the outer surface of the vertical flexible ruler 1. At this time, the sliding of the horizontal flexible ruler 2 will be limited by the fixing part, ensuring that the measurement point does not deviate. ④Adjust the length of the horizontal flexible ruler by rotating the Velcro on the horizontal flexible ruler 2, so that it corresponds to the measurement area, and the scale mark 21 on the horizontal flexible ruler should be accurately aligned with the position to be measured. ⑤If you need to measure the circumference of multiple positions, you can adjust the position of the horizontal flexible ruler one by one and measure in turn. Each time you adjust, make sure the Velcro is firmly fixed to avoid the flexible ruler from sliding. ⑥When all the points to be measured have been measured, check whether all the horizontal flexible rulers 2 have been locked by the Velcro. Then, rotate the knob 441 of the winding device 4 to release the pressure of the friction pad 442, ensuring that the flexible ruler can be smoothly retracted. At this time, the spiral spring 42 will drive the winding device to automatically restore the vertical flexible ruler 1 and the horizontal flexible ruler 2 from the unfolded state to the wound state. ⑦After use, arrange all the flexible rulers neatly and put them in the storage bag, making sure that the Velcro surface does not stick together to prolong the service life.

[0049] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways instead, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A multi-point precision measuring device for upper limb lymphedema, characterized in that, The utility model relates to a kind of soft ruler for measuring upper limb circumference of patient, including: Vertical soft ruler (1) is provided with longitudinal scale mark (12) on length direction, and longitudinal scale mark (12) is used to record the fixed position of transverse soft ruler (2); Multiple transverse soft ruler (2) is slidably connected to vertical soft ruler (1); One end of transverse soft ruler (2) is connected and fixed with vertical soft ruler (1) by magic tape; Vertical soft ruler (1) and transverse soft ruler (2) are provided with winding device (4), for recovering vertical soft ruler (1) and transverse soft ruler (2) from unfolded state to winding state respectively; Transverse scale mark (21) is provided on transverse soft ruler (2), for measuring perimeter data; Wherein, the back of vertical soft ruler (1) is provided with adhesive material, for sticking patient upper limb to keep the stability of measurement position.

2. The multi-point precise measuring device for upper limb lymphedema according to claim 1, wherein, Winding device (4) is respectively arranged in the end of vertical soft ruler (1) and transverse soft ruler (2), and each winding device (4) is provided with a coil spring (42), the first end of coil spring (42) is fixed to the inner wall of spring reel (41), and the first end of coil spring (42) is connected to the tail end of vertical soft ruler (1) and transverse soft ruler (2) respectively.

3. The multi-point precise measuring device for upper limb lymphedema according to claim 2, characterized in that: The winding device (4) includes a locking mechanism (44), the locking mechanism (44) includes: a knob (441) is connected by thread on the shell of winding device (4);A friction pad (442) is located inside winding device (4) and is made of high-friction rubber or polyurethane material;Knob (441) is connected with friction pad (442) through winding device (4).

4. The multi-point precise measuring device for upper limb lymphedema according to claim 1, characterized in that: Vertical soft ruler (1) and transverse soft ruler (2) are made of flexible polyurethane material.

5. The multi-point precise measuring device for upper limb lymphedema according to claim 1, characterized in that: The longitudinal scale mark (12) on the vertical soft ruler (1) and the transverse scale mark (21) on the transverse soft ruler (2) are made of wear-resistant polyimide coating. The font and scale line of the longitudinal scale mark (12) and the transverse scale mark (21) are embedded in the inner surface of the coating by laser engraving technology, and the width of the scale line is 0.5mm to 1.0mm.

6. The multi-point precise measuring device for upper limb lymphedema according to claim 1, wherein, One end of the transverse soft ruler (2) is provided with an annular fixing part (23), which forms a closed ring structure for sleeving on the vertical soft ruler (1); The inner surface of the annular fixing part (23) is provided with a magic tape, and the adhesive surface of the magic tape is distributed along the inner periphery of the annular fixing part (23); The outer surface of the vertical soft ruler (1) is continuously provided with an adhesive area corresponding to the magic tape along the length direction of the vertical soft ruler (1); When the annular fixing part (23) is sleeved on the vertical soft ruler (1), the sliding of the transverse soft ruler (2) is limited by the mutual cooperation of the magic tape and the adhesive area on the outer surface of the vertical soft ruler (1), and relative fixation is realized.

7. The multi-point precise measuring device for upper limb lymphedema according to claim 1, wherein, The back of the vertical soft ruler (1) is provided with an adhesive material layer, and the adhesive material layer is integrally formed by flexible silica gel material, and the surface is uniformly distributed with fine convex point structure.

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