Leg circumference measuring device for patient with lower limb vein intermuscular venous thrombosis
By designing a leg circumference measuring device with a reference plate, fixing strap, scale, and measuring ruler components, the problems of inaccurate reference point positioning and inconvenient operation in the existing technology are solved, and the accuracy and convenience of leg circumference measurement for patients with intermuscular venous thrombosis of the lower extremities are realized.
Patent Information
- Application Number
- CN202423060443.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing leg circumference measurement tools have inaccurate reference point positioning and are inconvenient to operate, resulting in large measurement errors and making it difficult to accurately assess changes in the condition of intermuscular thrombosis in the lower extremities.
A leg circumference measuring device was designed, comprising a reference plate, a fixing strap, Velcro, a ruler, and a measuring scale assembly. The reference plate is attached to the patella, the fixing strap is wrapped around the leg, and the ruler and measuring scale assembly ensure the accuracy and convenience of upper and lower leg circumference measurement. The measuring scale assembly is automatically fixed using an adjusting buckle and a U-shaped clip.
It improves the accuracy and ease of operation of leg circumference measurement, reduces reference point deviation, ensures the reliability and repeatability of measurement results, and facilitates use by medical staff.
Smart Images

Figure CN223773778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a measuring device, and in particular to a leg circumference measuring device for patients with intermuscular venous thrombosis of the lower extremities. Background Technology
[0002] The main clinical manifestations of intermuscular venous thrombosis in the lower extremities are lower limb pain and leg swelling. Measuring the circumference of the calf and thigh during the course of the disease can monitor its progression. A gradual decrease in leg circumference as treatment progresses usually indicates improvement. Therefore, measuring leg circumference is an important indicator for assessing treatment effectiveness and disease progression. Current methods for measuring leg circumference typically use the patella as a reference point, measuring 15cm above and 10cm below it.
[0003] Currently, the tool commonly used in clinical practice to measure leg circumference is a flexible measuring tape. During measurement, first select a point on the patella. Then, using this point as a starting point, measure upwards by 15cm with the measuring tape. Press the tape at the 15cm mark with your finger, then wrap the tape around the marked area once to measure the upper leg circumference. Next, starting from the previous reference point on the patella, measure downwards by 10cm, pressing the tape with your finger and measuring the lower leg circumference.
[0004] However, the above method has the following problems in practice: 1. When measuring the upper and lower leg circumferences, the reference point needs to be positioned twice. Without markings, deviations are very likely to occur, causing the reference points for the upper and lower leg circumferences to deviate significantly, resulting in inaccurate leg circumference measurements. 2. Each measurement requires placing a finger on the patient's leg as a reference point at 15cm and 10cm, and then only one hand can be used to wrap the measuring tape around the patient's leg, which is very inconvenient. Utility Model Content
[0005] In view of the above shortcomings, the purpose of this utility model is to provide a leg circumference measuring device for patients with intermuscular venous thrombosis of the lower extremities, which can reduce the difficulty of leg circumference measurement and ensure the accuracy of the leg circumference measurement value.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] A leg circumference measuring device for patients with intermuscular venous thrombosis of the lower extremities, comprising:
[0008] The reference piece has a concave structure that conforms to the patella;
[0009] A fixing band is disposed on the outer edge of the reference piece and extends radially along the reference piece;
[0010] Velcro is attached to the outer surface of the base piece to adhere to the fixing strap after it wraps around the knee bend once.
[0011] The scale has two scales, which are respectively located on the upper and lower sides of the reference plate and are symmetrically arranged with respect to the fixing band.
[0012] The measuring scale assembly has two sets, which are respectively set at 10cm and 15cm on the two scales.
[0013] Preferably, the measuring tape assembly includes an adjusting buckle, which is adjustablely positioned on the scale. A measuring tape is mounted on the adjusting buckle, and a locking strip is provided at the end of the measuring tape. A U-shaped clamp is also provided on the adjusting buckle. After the measuring tape enters the U-shaped clamp and is pulled back, the locking strip is locked by the U-shaped clamp.
[0014] Preferably, the scale has a plurality of fixed-distance holes at equal intervals, and the adjusting buckle has a protrusion. When the adjusting buckle is fixed on the scale, the protrusion passes through the fixed-distance holes.
[0015] Preferably, the fixing strap is provided with a plurality of nail holes, and the reference piece is provided with two round-headed pins, so that the round-headed pins pass through the nail holes on the fixing strap when the fixing strap is stored.
[0016] Preferably, a cover is also connected to the outer edge of the reference piece, and a zipper is wrapped around the cover and the reference piece. The zipper is pulled or closed so that the cover and the reference piece form a storage cavity that can accommodate the mark and measuring scale components.
[0017] Preferably, the reference sheet also has positioning holes, and the positioning holes are covered with a thin film.
[0018] Beneficial effects: This solution ensures stability between the reference plate and the patella during leg circumference measurement by setting a fixing strap on the reference plate, avoiding measurement inaccuracies caused by the back-and-forth movement of the measurement reference. Furthermore, the inclusion of a scale allows for precise setting of the measuring scale components for the upper and lower leg circumferences, thus ensuring measurement accuracy. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 yes Figure 1 The reverse view;
[0021] Figure 3 This is an enlarged view of the mark I;
[0022] Figure 4 This is an enlarged view of mark II;
[0023] Figure 5 This is an enlarged view of marker III.
[0024] Figure reference numerals: 1. Reference plate 2. Cover plate 3. Zipper 4. Velcro 5. Round pin 6. Fixing strap 61. Nail eye 7. Ruler 71. Distance hole 8. Measuring tool assembly 81. Adjusting buckle 82. Measuring tape 83. Clip 84. U-shaped clip 85. Protrusion 9. Film. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] like Figures 1-5 The illustrated device for measuring leg circumference in patients with intermuscular venous thrombosis of the lower extremities includes a reference plate 1. This reference plate has a concave structure that conforms to the protruding shape of the patella, facilitating proper fit and positioning on the patella using this concave structure. It should be noted that the reference plate is made of silicone or rubber to improve comfort during contact with the patient.
[0027] like Figure 1 As shown, a fastening strap 6 is fixed to the outer edge of the reference piece. This strap extends radially along the reference piece so that it can return to the reference piece after wrapping around the patient's leg bend. It should be noted that this fastening strap is made of Velcro with a velvet surface.
[0028] Correspondingly, a Velcro strip 4 is provided on the outer surface of the reference piece, which is in the same straight line as the extension direction of the fixation strap. The Velcro strip is made of a hook-and-loop material that can be bonded to the fixation strap, so that after the fixation strap wraps around the patient's leg, it can be bonded to the Velcro strip to fix the reference piece 1 to the patient's patella.
[0029] Two scales 7 are also set on the upper and lower outer edges of the reference piece, symmetrically positioned with respect to the diameter of the fixing strap. A set of measuring scale components 8 is set on each of these scales 7. Based on the leg circumference measurement requirements, the upper measuring scale component is located 15cm above the center of the reference piece 1, while the lower measuring scale component 8 is located 10cm below the center of the reference piece.
[0030] It should be noted that the measuring tape component 8 in this solution includes a self-retractable measuring tape 82. When leg circumference measurement is required, after holding the measuring tape body, the flexible tape portion is pulled out and wrapped around the leg to obtain the corresponding leg circumference value. As a preferred method, in this solution, for ease of operation and accurate value reading, the position of the measuring tape on the patient's leg needs to be finely adjusted during leg circumference measurement (to make the measuring tape fit the skin more closely and to ensure the wrapped position is at the same horizontal level). The measuring tape component 8 in this solution also includes the following structure: an adjustment buckle 81 fixed to the scale by clamping, on which the measuring tape is mounted. Additionally, a rigid locking strip 83 is installed at the end of the flexible tape portion of the measuring tape. In contrast, a U-shaped clip 84 is installed on the adjustment buckle. When it is necessary to measure the leg circumference, pull out the soft measuring tape, and then wrap the soft measuring tape around the patient's leg. Its end enters the U-shaped clip. At this time, simply release the fingers pulling the end of the soft measuring tape. The clip is then held in place by the U-shaped clip. The soft measuring tape can then naturally and tautly wrap around the patient's leg because the body is rolled up, without the medical staff having to hold it with their hands. The medical staff can then free up their hands to adjust the position of the measuring tape on the patient's leg, and it is more convenient and clear to read the values without the obstruction of their hands.
[0031] Additionally, it should be noted that the position of the adjustment buckle on the scale 7 is adjustable in this design. That is, by opening the adjustment buckle, its position on the scale can be easily adjusted. The significance of this design lies in the fact that for a small number of patients, the leg circumference measurement is not at the 15cm or 10cm points. In this case, the position of the adjustment buckle on the scale can be adjusted for a better fit. To provide a more intuitive and accurate understanding of the distance from each position on the scale to the center of the reference piece 1 during adjustment, this design features several evenly spaced distance holes 71 on the scale, each 1cm apart. Medical staff can quickly identify the position of the adjustment buckle 81 on the scale by counting the number of distance holes during adjustment. To prevent the adjustment buckle from slipping on the scale, a protruding protrusion 85 is also provided on the adjustment buckle. When the adjustment buckle 81 is closed and clamps the scale, this protrusion passes through the distance holes on the scale.
[0032] Furthermore, considering that the reference sheet in this design has several strip-like structures connected to its edge, they are prone to tangling during subsequent storage. Therefore, this solution incorporates the following optimized design: Specifically, two round-headed pins 5 are provided on the reference sheet, located at both ends of the Velcro. Simultaneously, several nail holes 61 are provided on the fixing strap. When storing this solution, the fixing strap is wrapped around the reference sheet, with the round-headed pins passing through the nail holes to ensure that the fixing strap does not come undone later.
[0033] In addition, the storage of the ruler 7 and measuring tool assembly 8 must also be considered. This design also includes a cover 2 on the reference plate 1, with a zipper 3 sewn onto the edge of the cover and the reference plate. When the zipper is closed, the cover and the reference plate form a sealed storage cavity, in which the ruler and measuring tool assembly can be stored.
[0034] In addition, to improve the accuracy of the reference film's positioning on the patella, this design incorporates a central hole 11 at the center of the reference film. During reference film positioning, medical personnel can observe the patient's patella through this central hole, allowing the reference film to be positioned centered on the patella. It should be noted that, to prevent items in the storage cavity from falling out of the central hole, a transparent film 9 can be placed over the central hole. Furthermore, the size of the central hole in this design is close to the size of the human patella, enabling rapid positioning of the reference film by simply attaching it to the patella through the central hole.
[0035] Working principle: When measuring leg circumference, medical staff first attach the reference plate to the patient's patella. Then, the fixing strap is wrapped around the patient's leg once and glued to the Velcro, at which point the reference plate is fixed to the patient's patella. Next, the measuring tape is pulled upwards and straightened. One hand holds the main body of the measuring tape, while the other hand pulls out the flexible section of the measuring tape and wraps it around the patient's leg, inserting the flexible section into the U-shaped clip. After the above operations are completed, the medical staff releases the fingers holding the flexible section, and the excess flexible section is retracted by the measuring tape body, so that the measuring tape fits snugly around the outside of the leg. At this point, the medical staff adjusts the position of the measuring tape on the leg (adjusting it to the same horizontal height) as needed, and can then easily read the upper leg circumference value. The lower leg circumference is measured using the same operation as the upper leg circumference. After the upper and lower leg circumference measurements are completed, the measuring tape and measuring tape assembly are stored away in the storage cavity formed by the cover and the reference plate. Then, wrap the fixing strap around the outside of the reference piece and pass the round-headed pin through the eyelet on the fixing strap to prevent the fixing strap from coming loose. At this point, the measurement of the patient's upper and lower leg circumferences and the storage of the measuring tools are all completed.
Claims
1. A leg circumference measuring device for patients with intermuscular venous thrombosis of the lower extremities, characterized in that: include The reference piece (1) has a concave structure that fits the patella; A fixing band (6) is provided on the outer edge of the reference piece (1) and extends radially along the reference piece (1); Velcro (4) is provided on the outer surface of the reference piece (1) to be bonded to the fixing strap (6) after the fixing strap (6) is wrapped around the knee bend once; The scale (7) has two scales, which are respectively located on the upper and lower sides of the reference plate (1) and are symmetrically arranged with respect to the fixing band (6). The measuring scale assembly (8) has two sets, which are respectively set at 10cm and 15cm on the two scales (7).
2. The leg circumference measuring device for patients with lower extremity venous intermuscular thrombosis as described in claim 1, characterized in that: The measuring tape assembly (8) includes an adjusting buckle (81), which is adjustablely positioned on the scale (7). A measuring tape (82) is provided on the adjusting buckle (81), and a locking strip (83) is provided at the end of the measuring tape (82). A U-shaped clip (84) is also provided on the adjusting buckle (81). After the measuring tape (82) enters the U-shaped clip (84) and is pulled back, the locking strip (83) is locked by the U-shaped clip (84).
3. The leg circumference measuring device for patients with lower extremity venous intermuscular thrombosis as described in claim 2, characterized in that: The scale (7) has several fixed-distance holes (71) at equal intervals, and the adjusting buckle (81) has a protrusion (85). When the adjusting buckle (81) is fixed on the scale (7), the protrusion (85) passes through the fixed-distance hole (71).
4. The leg circumference measuring device for patients with lower extremity venous intermuscular thrombosis as described in claim 3, characterized in that: The fixing band (6) is provided with a number of nail holes (61), and the reference piece (1) is provided with two round-headed pins (5). When the fixing band (6) is stored, the round-headed pins (5) pass through the nail holes (61) on the fixing band (6).
5. The leg circumference measuring device for patients with lower extremity venous intermuscular thrombosis as described in claim 4, characterized in that: A cover plate (2) is also connected to the outer edge of the reference plate (1). A zipper (3) is wrapped around the cover plate (2) and the reference plate (1). The zipper (3) is pulled and closed so that the cover plate (2) and the reference plate (1) form a storage cavity that can store the mark and measuring scale assembly (8).
6. The leg circumference measuring device for patients with lower extremity venous intermuscular thrombosis as described in claim 5, characterized in that: The reference plate (1) is also provided with a positioning hole (11), and the positioning hole is covered with a thin film (9).