Sliding type accurate positioning and measuring device for leg circumference and arm circumference of lymphedema patient

Abstract

The utility model discloses a sliding type accurate positioning and measuring device for leg circumference and arm circumference of a lymphedema patient. The sliding type accurate positioning and measuring device comprises a first bearing plate, a second bearing plate, a baffle and a measuring assembly. The two sides of the upper surface of the first bearing plate are each provided with a first scale line, and the first scale lines extend in the length direction of the first bearing plate. The second bearing plate is connected to the tail end of the first bearing plate in a pivoted mode, the second bearing plate can be switched between a first state and a second state, when the second bearing plate is in the first state, the bottom face of the second bearing plate is attached to the bottom face of the first bearing plate, and when the second bearing plate is in the second state, the bottom face of the second bearing plate is attached to the bottom face of the second bearing plate. The upper surface of the second bearing plate and the upper surface of the first bearing plate are located on the same horizontal plane. The baffle is connected to the head end of the first bearing plate in a pivoted mode so as to block the palm or the sole of a patient, the baffle can be switched between a third state and a fourth state, when the baffle is in the third state, the baffle is attached to the upper surface of the first bearing plate, and when the baffle is in the fourth state, the baffle is attached to the lower surface of the first bearing plate. The baffle is perpendicular to the first bearing plate. The measuring assembly comprises a sliding block and a measuring belt, the sliding block is arranged in the middle of the upper surface of the first bearing plate and can slide in the length direction of the first bearing plate, and the measuring belt transversely penetrates through the upper end of the sliding block and can be drawn left and right to measure the arm circumference and the leg circumference. When the second bearing plate is in the second state, the measuring assembly can slide to the surface of the second bearing plate and move in the length direction of the second bearing plate. The device is simple in structure and convenient and accurate in measurement.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema. Background Technology

[0002] Lymphedema is a localized swelling caused by dysfunction of the lymphatic system, commonly found in the arms or legs. Accurately measuring the circumference of the patient's arms or legs is a crucial step in assessing the degree of swelling, developing a treatment plan, and monitoring treatment effectiveness during the treatment of lymphedema.

[0003] Currently, the common method for measuring the circumference of the arms or legs of patients with lymphedema is for medical staff to hold a measuring tape and take measurements every 5 cm along the length of the arm or leg. However, this method has some problems in practice.

[0004] First, maintaining a 5cm interval is difficult. Because the measuring tape needs to be manually moved during the measurement process, medical staff may introduce some error in determining the position for each measurement. This error could affect the accuracy of the measurement data, thereby impacting subsequent treatment plans and outcome evaluations.

[0005] Secondly, taking measurements by hand requires a certain amount of time and effort. For patients with lymphedema, frequent and accurate measurements are necessary, but holding the measuring tape by hand may increase the workload of medical staff and may also cause discomfort to patients.

[0006] Therefore, it is necessary to make further improvements to the existing technology. Utility Model Content

[0007] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this invention is to provide a sliding-type device for accurately measuring the leg and arm circumference of patients with lymphedema.

[0008] To achieve the above objectives, a sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema, according to an embodiment of the present invention, includes a first support plate, a second support plate, a baffle, and a measuring component.

[0009] The first support plate has first scale lines on both sides of its upper surface, and the first scale lines extend along the length of the first support plate.

[0010] The second support plate is pivotally connected to the tail end of the first support plate. The second support plate can switch between a first state and a second state. When the second support plate is in the first state, the bottom surface of the second support plate is in contact with the bottom surface of the first support plate. When the second support plate is in the second state, the upper surface of the second support plate and the upper surface of the first support plate are on the same horizontal plane.

[0011] The baffle is pivotally connected to the first support plate to block the patient's palm or foot. The baffle can switch between a third state and a fourth state. When the baffle is in the third state, the baffle is attached to the upper surface of the first support plate. When the baffle is in the fourth state, the baffle is perpendicular to the first support plate.

[0012] The measuring component includes a sliding block and a measuring band. The sliding block is located at the middle of the upper surface of the first support plate and can slide along the length of the first support plate. The measuring band passes laterally through the upper end of the sliding block and can be pulled left and right to measure arm circumference and leg circumference.

[0013] When the second support plate is in the second state, the measuring component can slide onto the surface of the second support plate and move along its length.

[0014] In addition, the sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to the above embodiments of this utility model may also have the following additional technical features:

[0015] According to one embodiment of the present invention, a first groove is provided in the middle of the upper surface of the first support plate. The groove extends along the length direction of the first support plate and passes through to the tail end of the first support plate. The slider is disposed in the first groove and forms a sliding engagement with it.

[0016] According to one embodiment of the present invention, a second sliding groove is provided in the middle of the upper surface of the second support plate. The second sliding groove extends along the length direction of the second support plate. When the second support plate is in the second state, the second sliding groove and the first sliding groove are arranged opposite each other and are at the same horizontal height.

[0017] According to one embodiment of the present invention, the upper surface of the slider is provided with a protrusion, and the side of the protrusion is provided with a transverse strap groove. The strap groove extends to the other side of the protrusion, and the measuring strap is inserted into the strap groove and can be pulled laterally.

[0018] According to one embodiment of the present invention, a second scale line is provided on both sides of the upper surface of the second support plate, and the second scale line extends along the length direction of the second support plate.

[0019] According to one embodiment of the present invention, a locking component is further included, which is disposed on the side of the baffle to lock the baffle in a fourth state.

[0020] According to one embodiment of the present invention, the locking assembly includes an extension platform, a locking post, and a locking table.

[0021] The extension platform is located on the side of the baffle.

[0022] The locking pin is vertically inserted into the extension platform and can move up and down.

[0023] The locking platform is located on the side of the first support plate and extends to the rear end of the first support platform. The upper surface of the locking platform is provided with an insertion hole, and the insertion hole and the locking post are arranged vertically opposite each other.

[0024] When the locking pin moves downward, the lower end of the locking pin is inserted into the socket.

[0025] According to one embodiment of the present utility model, the bottom surface of the first support plate is provided with two storage slots on the side near the first end. The two storage slots are arranged opposite each other. A pad is provided in each of the two storage slots. The pad is pivotally connected to the top of the side wall of the storage slot and can be switched between the fifth state and the sixth state.

[0026] When the pad is in the fifth state, the pad is stored in the storage groove. When the pad is in the sixth state, the pad is flipped over and attached to the bottom surface of the first support plate.

[0027] According to one embodiment of the present invention, the side of the storage groove away from the baffle is provided with an arc-shaped groove, and the arc-shaped groove extends through to the bottom surface of the first support plate.

[0028] According to one embodiment of the present invention, the side of the pad away from the baffle is provided with a handle groove so as to pivot the pad through the handle groove.

[0029] According to the embodiments of this utility model, the sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema features a pivotable second support plate design, allowing for flexible switching between arm and leg circumference measurements. When the second support plate is in a closed position, it is suitable for arm circumference measurement; when unfolded to the same level as the first support plate, it is suitable for leg circumference measurement, enhancing the device's versatility and practicality. The baffle design allows users to easily switch between a blocked (for positioning the arm or leg) and retracted state according to measurement needs, improving measurement accuracy and operational convenience. The combination of the sliding block and measuring band makes the measurement process more intuitive and faster; users can simply slide the measuring band to obtain a reading. The first scale line facilitates accurate measurement spacing by medical personnel. Both the second support plate and the baffle are pivotable and retractable, allowing the entire device to be compactly folded when not in use, facilitating carrying and storage. This design not only saves space but also improves user portability and experience.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this utility model;

[0033] Figure 2 This is another schematic diagram of the overall structure in an embodiment of this utility model;

[0034] Figure 3 This is a schematic diagram of the changing states in an embodiment of this utility model;

[0035] Figure 4 This is another schematic diagram of the changing states in an embodiment of this utility model;

[0036] Figure 5 This is a schematic diagram of the folded state in an embodiment of this utility model;

[0037] Figure 6 This is another schematic diagram of the folded state in an embodiment of this utility model;

[0038] Figure 7 This is a schematic diagram of the overall structure of the measuring component in an embodiment of this utility model;

[0039] Figure 8 This is a schematic diagram of the overall structure of the sliding block in an embodiment of this utility model;

[0040] Figure 9 This is an embodiment of the present utility model. Figure 1 Enlarged view of section A in the middle;

[0041] Figure 10 This is an embodiment of the present utility model. Figure 2 Enlarged view of section B.

[0042] Icon labels:

[0043] First support plate 10;

[0044] First scale line 11;

[0045] First groove 12;

[0046] Storage slot 13;

[0047] Spacer 14;

[0048] Handle groove 141;

[0049] Arc groove 15;

[0050] Second support plate 20;

[0051] Second slide 21;

[0052] Second graduation line 22;

[0053] baffle 30;

[0054] Measurement component 40;

[0055] Sliding block 41;

[0056] Bump 411;

[0057] 412 threaded groove;

[0058] Measuring band 42;

[0059] Locking component 50;

[0060] Extension platform 51;

[0061] Locking pin 52;

[0062] Locking platform 53;

[0063] Socket 531.

[0064] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0065] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0066] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0067] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0069] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0070] The following describes in detail, with reference to the accompanying drawings, a sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to an embodiment of the present invention.

[0071] Reference Figures 1 to 10 As shown, the sliding lymphedema patient leg and arm circumference precision positioning and measuring device provided according to the embodiment of this utility model includes a first support plate 10, a second support plate 20, a baffle 30 and a measuring component 40.

[0072] The first support plate 10 has a first scale line 11 on both sides of its upper surface, and the first scale line 11 extends along the length of the first support plate 10.

[0073] The second support plate 20 is pivotally connected to the tail end of the first support plate 10. The second support plate 20 can switch between a first state and a second state. When the second support plate 20 is in the first state, the bottom surface of the second support plate 20 is in contact with the bottom surface of the first support plate 10. When the second support plate 20 is in the second state, the upper surface of the second support plate 20 and the upper surface of the first support plate 10 are on the same horizontal plane. The first support plate 10 and the second support plate 20 can be made of a relatively lightweight material for easy transfer and storage. The parts of the first support plate 10 and the second support plate 20 that come into contact with the human body are designed with a soft material to increase comfort.

[0074] The baffle 30 is pivotally connected to the first support plate 10 to block the patient's palm or foot. The baffle 30 can switch between a third state and a fourth state. When the baffle 30 is in the third state, the baffle 30 is attached to the upper surface of the first support plate 10. When the baffle 30 is in the fourth state, the baffle 30 is perpendicular to the first support plate 10.

[0075] The measuring component 40 includes a sliding block 41 and a measuring band 42. The sliding block 41 is located in the middle of the upper surface of the first support plate 10 and can slide along the length of the first support plate 10. The measuring band 42 is transversely inserted through the upper end of the sliding block 41 and can be pulled left and right to measure arm circumference and leg circumference.

[0076] When the second support plate 20 is in the second state, the measuring component 40 can slide onto the surface of the second support plate 20 and move along its length.

[0077] Based on the above, the device, through the design of a pivotable second support plate 20, can flexibly switch between measuring arm circumference and leg circumference. When the second support plate 20 is in a closed state (first state), it is suitable for arm circumference measurement; when it is unfolded to the same horizontal plane as the first support plate 10 (second state), it is suitable for leg circumference measurement (the second support plate 20 extends the overall length, making it easier to place longer legs), enhancing the versatility and practicality of the device. The design of the baffle 30 allows users to easily switch between a blocking (for positioning the arm or leg) and a retracted state according to measurement needs, improving measurement accuracy and ease of operation. The combination of the sliding block 41 and the measuring band 42 makes the measurement process more intuitive and faster; users can simply slide the measuring band 42 to obtain a reading. The first scale line 11 helps medical personnel accurately grasp the measurement interval. Both the second support plate 20 and the baffle 30 can be pivotally retracted (i.e., the second support plate 20 is in the first state, and the baffle 30 is in the third state), allowing the entire device to be compactly folded when not in use, making it easy to carry and store. This design not only saves space, but also improves user portability and user experience.

[0078] Meanwhile, since traditional positioning methods locate from the skin surface, the degree of swelling of the patient changes the positioning position and increases the measurement error. However, in this application, the positioning measurement position is performed by the first scale line 11 and the second scale line 22 on the first support plate 10 and the second support plate 20, making the positioning more accurate.

[0079] Preferably, in one embodiment of the present invention, a first groove 12 is provided in the middle of the upper surface of the first support plate 10. The groove extends along the length direction of the first support plate 10 and passes through to the tail end of the first support plate 10. The slider is disposed in the first groove 12 and forms a sliding engagement with it.

[0080] In this way, the groove provides a clear and restricted path for the slider, ensuring that the slider can slide smoothly and linearly along the length of the first support plate 10 during measurement, avoiding deviation or wobbling during measurement, thereby improving the stability and accuracy of the measurement. The cooperative design of the groove and the slider allows users to adjust the position of the measuring band 42 more easily and accurately.

[0081] Preferably, in one embodiment of the present invention, a second groove 21 is provided in the middle of the upper surface of the second support plate 20. The second groove 21 extends along the length direction of the second support plate 20. When the second support plate 20 is in the second state, the second groove 21 and the first groove 12 are arranged opposite each other and at the same horizontal height.

[0082] Thus, when the second support plate 20 is in the second state (i.e., the unfolded state), the second slide 21 and the first slide 12 are opposite each other and at the same horizontal height. This means that the slider (and the attached measuring strip 42) can smoothly transition from the first support plate 10 to the second support plate 20 without interruption, achieving continuous measurement of the entire length. This design greatly improves the continuity and accuracy of measurement, especially when measuring longer sections (such as the entire leg). The addition of the second slide 21 not only enhances the device's measurement capability but also increases its flexibility. Users can choose to use only the first support plate 10 for measuring shorter sections, or simultaneously use both the first support plate 10 and the second support plate 20 for measuring longer sections, depending on their actual needs. This flexibility makes the device more adaptable to different scenarios and user requirements.

[0083] Preferably, in one embodiment of the present invention, the upper surface of the slider is provided with a protrusion 411, the side of the protrusion 411 is provided with a transverse strap groove 412, the strap groove 412 extends to the other side of the protrusion 411, the measuring strap 42 is inserted into the strap groove 412 and can be pulled laterally.

[0084] Thus, the design of the protrusion 411 and the threading groove 412 provides a stable attachment point for the measuring tape 42. The measuring tape 42, threaded within the threading groove 412, ensures that it will not easily fall off or shift due to slippage or external forces during measurement, thereby guaranteeing the accuracy and stability of the measurement. The threading groove 412 allows the measuring tape 42 to move laterally within the protrusion 411; users can easily adjust its position by pulling on both ends of the measuring tape 42 to achieve precise measurements. This design not only improves the convenience of measurement but also makes the measurement process more intuitive and easier to operate.

[0085] Preferably, in one embodiment of the present invention, the second support plate 20 has a second scale line 22 on both sides of its upper surface, and the second scale line 22 extends along the length direction of the second support plate 20.

[0086] Thus, when the second support plate 20 is in the unfolded state, the second scale line 22 and the first scale line 11 on the first support plate 10 together form a longer measurement range. This provides users with greater measurement flexibility, especially when measuring longer parts (such as the entire leg), ensuring the completeness and accuracy of the measurement.

[0087] Preferably, in one embodiment of the present invention, a locking component 50 is further included, which is disposed on the side of the baffle 30 to lock the baffle 30 in the fourth state.

[0088] Thus, during the measurement process, especially when measuring the legs, the baffle 30 serves a positioning and support function. The addition of the locking component 50 allows the baffle 30 to more reliably block the legs, reducing potential safety risks caused by the movement of the baffle 30. This is of great significance in protecting users from accidental injury.

[0089] Preferably, in one embodiment of the present invention, the locking assembly 50 includes an extension platform 51, a locking post 52, and a locking platform 53.

[0090] The extension platform 51 is located on the side of the baffle 30.

[0091] The locking pin 52 is vertically inserted into the extension platform 51 and can move up and down.

[0092] The locking platform 53 is located on the side of the first support plate 10 and extends to the rear end of the first support platform. The upper surface of the locking platform 53 is provided with an insertion hole 531, and the insertion hole 531 and the locking post 52 are arranged opposite each other vertically.

[0093] When the locking pin 52 moves downward, the lower end of the locking pin 52 is inserted into the insertion hole 531.

[0094] Thus, the locking pin 52 can be vertically inserted into the extension stage 51 and inserted into the socket 531 of the locking stage 53 by moving downwards, thereby achieving a stable lock on the baffle 30. This design ensures that the baffle 30 will not move or shake accidentally due to external factors during measurement, providing reliable stability and safety. Users can simply move the locking pin 52 to lock and unlock the baffle 30. This design simplifies the operation process, allowing users to easily lock or release the baffle 30 as needed during measurement.

[0095] Preferably, in one embodiment of the present invention, the bottom surface of the first support plate 10 is provided with two storage slots 13 near the first end, the two storage slots 13 are arranged opposite each other, and each of the two storage slots 13 is provided with a pad 14. The pad 14 is pivotally connected to the top of the side wall of the storage slot 13 and can be switched between the fifth state and the sixth state.

[0096] When the pad 14 is in the fifth state, the pad 14 is stored in the storage groove 13. When the pad 14 is in the sixth state, the pad 14 is flipped over and attached to the bottom surface of the first support plate 10.

[0097] Understandably, when the second support plate 20 is in the first state, it adheres to the bottom surface of the first support plate 10, creating a height difference between its ends. This difference causes the first support plate 10 to no longer remain horizontal. Therefore, by providing the pad 14, when the second support plate 20 is in the first state, the pad 14 can be adjusted to the sixth state, thereby raising the height of the first end of the first support plate 10, allowing the first support plate 10 to remain as horizontal as possible, facilitating the placement of the patient's arm or leg.

[0098] Meanwhile, when the second support plate 20 is in the second state, the bottom surfaces of the second support plate 20 and the first support plate 10 are at the same horizontal level. At this time, the pad 14 can be adjusted to the fifth state so that it can be stored in the storage groove 13.

[0099] As a preferred embodiment of the present invention, a magnetic sheet may be provided on the bottom surface of the storage groove 13, and a metal sheet may be provided on the pad 14. When the pad 14 is in the fifth state, the magnetic sheet and the metal sheet attract each other, thereby making the pad 14 stably stored in the storage groove 13.

[0100] Preferably, in one embodiment of the present invention, the side of the storage groove 13 away from the baffle 30 is provided with an arc-shaped groove 15, and the arc-shaped groove 15 extends through to the bottom surface of the first support plate 10.

[0101] Thus, by setting the arc-shaped groove 15, it is easy for the operator to insert their fingers and apply force to its side to flip it out of the storage groove 13.

[0102] Preferably, in one embodiment of the present invention, the pad 14 is provided with a handle groove 141 on the side away from the baffle 30, so that the pad 14 can be pivoted through the handle groove 141.

[0103] Thus, by setting the hand-holding groove 141, it is convenient for the operator to insert their fingers into the hand-holding groove 141, thereby flipping the pad 14, making the flipping process simpler, faster, and more time-saving.

[0104] 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 the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer 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.

[0105] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sliding-type precise positioning and measuring device for leg and arm circumference in patients with lymphedema, characterized in that, include: The first support plate has first scale lines on both sides of its upper surface, and the first scale lines extend along the length of the first support plate. The second support plate is pivotally connected to the tail end of the first support plate. The second support plate can switch between a first state and a second state. When the second support plate is in the first state, the bottom surface of the second support plate is in contact with the bottom surface of the first support plate. When the second support plate is in the second state, the upper surface of the second support plate and the upper surface of the first support plate are on the same horizontal plane. A baffle, pivotally connected to the first support plate, is used to block the patient's palm or foot. The baffle can switch between a third state and a fourth state. When the baffle is in the third state, it is attached to the upper surface of the first support plate. When the baffle is in the fourth state, it is perpendicular to the first support plate. The measuring component includes a sliding block and a measuring band. The sliding block is located at the middle of the upper surface of the first support plate and can slide along the length of the first support plate. The measuring band passes laterally through the upper end of the sliding block and can be pulled left and right to measure arm circumference and leg circumference. When the second support plate is in the second state, the measuring component can slide onto the surface of the second support plate and move along its length.

2. The sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to claim 1, characterized in that, A first groove is provided in the middle of the upper surface of the first support plate. The groove extends along the length of the first support plate and passes through to the tail end of the first support plate. The sliding block is disposed in the first groove and forms a sliding engagement with it.

3. The sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to claim 2, characterized in that, The second support plate has a second groove in the middle of its upper surface. The second groove extends along the length of the second support plate. When the second support plate is in the second state, the second groove and the first groove are arranged opposite each other and at the same horizontal height.

4. The sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to claim 1, characterized in that, The upper surface of the sliding block is provided with a protrusion, and a transverse strap groove is provided on the side of the protrusion. The strap groove extends to the other side of the protrusion, and the measuring strap is inserted into the strap groove and can be pulled laterally.

5. The sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to claim 1, characterized in that, The second support plate has second scale lines on both sides of its upper surface, and the second scale lines extend along the length of the second support plate.

6. The sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to claim 1, characterized in that, It also includes a locking component, which is disposed on the side of the baffle to lock the baffle in the fourth state.

7. The sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to claim 6, characterized in that, The locking component includes: An extension platform is provided on the side of the baffle. A locking pin is vertically inserted into the extension platform and can move up and down; A locking platform is provided on the side of the first support plate and extends to the rear end of the first support plate. The upper surface of the locking platform is provided with an insertion hole, and the insertion hole and the locking post are arranged vertically opposite each other. When the locking pin moves downward, the lower end of the locking pin is inserted into the socket.

8. The sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to claim 1, characterized in that, The bottom surface of the first support plate is provided with two storage slots near the first end. The two storage slots are arranged opposite each other. Each storage slot is provided with a pad. The pad is pivotally connected to the top of the side wall of the storage slot and can be switched between the fifth state and the sixth state. When the pad is in the fifth state, the pad is stored in the storage groove. When the pad is in the sixth state, the pad is flipped over and attached to the bottom surface of the first support plate.

9. The sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to claim 8, characterized in that, The storage slot has an arc-shaped groove on one side away from the baffle, and the arc-shaped groove extends to the bottom surface of the first support plate.

10. The sliding-type precise positioning and measuring device for leg and arm circumference of patients with lymphedema according to claim 9, characterized in that, The pad block has a handle groove on one side away from the baffle, so that the pad block can be pivoted through the handle groove.

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