Leg circumference measuring device

By designing a leg circumference measuring device with an arc-shaped ruler and a patella position marker, the problem of inconvenient operation of leg circumference measurement is solved, and higher accuracy and convenience are achieved.

CN223336109UActive Publication Date: 2025-09-16TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Application Number
CN202422707392.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-09-16
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

In the prior art, leg circumference measurement is inconvenient to operate and prone to errors, which affects the accuracy and convenience of measurement.

Method used

A leg circumference measurement device is designed, which includes a ruler, a patella position marker, a thigh circumference measurement component, a calf circumference measurement component and a patella fixator. The ruler is arc-shaped and fits the leg, the patella position marker is used to locate the patella, and the patella fixator is used to fix the knee, thereby improving the accuracy and convenience of measurement.

Benefits of technology

The design of the arc-shaped ruler and the patella position mark ensures that the ruler fits the leg tightly, reducing measurement errors and improving measurement accuracy and convenience.

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Abstract

The utility model provides a leg circumference measuring device which comprises a scale, a thigh circumference measuring assembly, a shank circumference measuring assembly and a patella fixing piece, the middle of the scale is recessed inwards to form a leg fitting curved surface with an arc-shaped cross section, the leg fitting curved surface is used for fitting with the leg of a patient, and the measuring accuracy is improved; a patella position mark is arranged at the preset position of the protruding surface, opposite to the leg fitting curved surface, of the ruler, so that the patella position mark corresponds to the central position of the patella of the patient, and the measurement convenience is improved; the thigh circumference measuring assembly is fixed to the end of the first end of the scale, and the shank circumference measuring assembly is fixed to the end of the second end of the scale, so that the thigh circumference and the shank circumference of a patient can be measured at the same time through the thigh circumference measuring assembly and the shank circumference measuring assembly; the patella fixing pieces are symmetrically distributed on the two sides of the patella position mark, so that the leg circumference measuring device is fixed to the knee position of the patient through the patella fixing pieces, and the convenience of measuring operation is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of leg circumference measurement, in particular to a leg circumference measuring device. Background Art

[0002] Measuring leg circumference is not only a basic nursing task; it is also a key step in clinically assessing lower limb conditions, assisting in the diagnosis of complications, and accurately formulating treatment strategies and personalized rehabilitation plans. By comparing the leg circumference differences between the affected and unaffected limbs, and by comparing the changes in measurement results over multiple consecutive days, doctors can intuitively understand the degree of edema in the affected limb and its changing trends. This is important for determining whether there is blood flow obstruction, evaluating treatment effectiveness, and predicting rehabilitation progress. Based on this detailed data analysis, doctors can develop more scientific and reasonable treatment and rehabilitation plans. For example, for patients with significant edema, measures such as elevating the affected limb, applying pressure with elastic bandages, and administering anticoagulants to prevent thrombosis may be adopted. During the rehabilitation phase, the intensity and content of rehabilitation exercises will be gradually adjusted based on the recovery of the affected limb to promote functional recovery of the affected limb.

[0003] However, during the specific measurement process, the leg circumference of the patient's left and right thighs and the same position of the left and right calves need to be measured each time. This measurement method is prone to operational errors, is extremely inconvenient to operate, and can easily affect the medical staff's judgment of the patient's condition.

[0004] That is, how to provide a leg circumference measuring device to achieve the technical effect of improving measurement convenience is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] In view of the above problems, the present invention aims to provide a leg circumference measuring device to solve at least one of the above technical problems.

[0006] The utility model provides a leg circumference measuring device, which includes:

[0007] A ruler, wherein the middle portion of the ruler is concave inward to form a leg-fitting curved surface with an arc-shaped cross section, and a patella position mark is provided at a preset position on a protruding surface of the ruler opposite to the leg-fitting curved surface;

[0008] a thigh circumference measuring assembly, the thigh circumference measuring assembly being fixed to the end portion of the first end of the ruler;

[0009] a calf circumference measurement assembly, the calf circumference measurement assembly being fixed to an end portion of the second end of the ruler;

[0010] A patella fixing piece is fixedly arranged at the preset position of the ruler, and the patella fixing piece is symmetrically distributed on both sides of the patella position mark.

[0011] Preferably, the thigh circumference measurement assembly includes a first tape measure and a first clamping piece, the first tape measure and the first clamping piece are respectively fixed to both sides of the first end of the ruler, the telescopic end of the first tape measure is fixedly connected to the right edge of the first end of the ruler, the first clamping piece is fixedly connected to the left edge of the first end of the ruler, the first clamping piece has a clamping area, and the body of the first tape measure is clamped in the clamping area of ​​the first clamping piece.

[0012] Preferably, the calf circumference measurement assembly includes a second tape measure and a second clip, the second tape measure and the second clip are respectively fixed to both sides of the second end of the ruler, the telescopic end of the second tape measure is fixedly connected to the right edge of the second end of the ruler, the second clip is fixedly connected to the left edge of the second end of the ruler, the second clip has a clipping area, and the body of the second tape measure is clipped into the clipping area of ​​the second clip.

[0013] Preferably, the first measuring tape comprises:

[0014] a first housing, wherein the first housing is a columnar structure, and a first scroll is disposed in the columnar structure;

[0015] A first soft tape measure is wound around the first reel, a telescopic end of the first soft tape measure extends from the first housing and is fixedly connected to the right edge of the first end of the ruler, and an elastic retraction structure is provided between the first reel and the first soft tape measure.

[0016] Preferably, the second measuring tape comprises:

[0017] a second housing, wherein the second housing is a columnar structure, and a second scroll is disposed in the columnar structure;

[0018] A second soft tape measure is wound around the second reel, the telescopic end of the first soft tape measure extends from the second housing and is fixedly connected to the right edge of the second end of the ruler, and an elastic retraction structure is provided between the second reel and the second soft tape measure.

[0019] Preferably, the arc length of the cross section of the ruler is 2 cm.

[0020] Preferably, the starting scales of the first soft measuring tape and the second soft measuring tape are both 2 cm.

[0021] Preferably, the patella fixing component includes a pair of fixing straps, which are respectively fixed to both sides of the ruler and symmetrically distributed on both sides of the patella position mark, and are fixed by Velcro.

[0022] Preferably, the maximum measuring length of the first soft measuring tape and the second soft measuring tape are both 60 cm.

[0023] Preferably, the distance between the center of the patella position mark and the setting position of the first tape measure is 15 cm, and the distance between the center of the patella position mark and the setting position of the second tape measure is 10 cm.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] Specifically, the utility model provides a leg circumference measuring device, including a ruler, a thigh circumference measuring component, a calf circumference measuring component and a patella fixing component. The middle part of the ruler is concave inward to form a leg-fitting curved surface with an arc-shaped cross-section, which is used to fit the patient's leg, so that the ruler can fit the leg more closely and naturally, avoiding gaps or unevenness caused by the straight line design, and further improving the accuracy of the measurement. A patella position mark is provided at a preset position of the protruding surface of the ruler opposite to the leg fitting curved surface, so that the patella position mark corresponds to the central position of the patient's patella, thereby improving the convenience and accuracy of measurement; the thigh circumference measuring component is fixed to the end of the first end of the ruler, so that the patient's thigh circumference can be measured by the thigh circumference measuring component; the calf circumference measuring component is fixed to the end of the second end of the ruler, so that the patient's calf circumference can be measured by the calf circumference measuring component; the patella fixing part is fixedly provided at the preset position of the ruler and is symmetrically distributed on both sides of the patella position mark, so that the leg circumference measuring device can be fixed to the patient's knee position by the patella fixing part, thereby improving the convenience of the measurement operation.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 Schematic diagram of the structure of the leg circumference measuring device in an embodiment of the present application.

[0029] Reference numerals:

[0030] 1. Ruler;

[0031] 11. Patella position mark;

[0032] 2. Thigh circumference measurement component;

[0033] 21. First tape measure;

[0034] 211, first shell;

[0035] 212. First soft measuring tape;

[0036] 22. First clamping member;

[0037] 3. Calf circumference measurement component;

[0038] 31. Second measuring tape;

[0039] 311, second shell;

[0040] 312. Second soft measuring tape;

[0041] 32. Second clamping member;

[0042] 4. Patellar fixation device. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this utility model; the "and / or" keywords involved in this implementation represent both and, or. In other words, A and / or B mentioned in the embodiments of this specification represent both A and B, and A or B, and describe the three states of A and B. For example, A and / or B means: only A is included but not B; only B is included but not A; and both A and B are included.

[0044] Meanwhile, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component.

[0045] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0046] Example 1

[0047] See also Figure 1 Specifically, in an embodiment of the leg circumference measuring device, the leg circumference measuring device provided by the present application specifically includes a ruler 1, a thigh circumference measuring component 2, a calf circumference measuring component 3 and a patella fixing component 4. The middle part of the ruler 1 is recessed inward to form a leg fitting curved surface with an arc-shaped cross-section. A patella position mark 11 is provided at a preset position of the protruding surface of the ruler 1 opposite to the leg fitting curved surface; the thigh circumference measuring component 2 is fixed to the end of the first end of the ruler 1; the calf circumference measuring component 3 is fixed to the end of the second end of the ruler 1; the patella fixing component 4 is fixedly arranged at a preset position of the ruler 1, and the patella fixing components 4 are symmetrically distributed on both sides of the patella position mark 11.

[0048] Specifically, the embodiment of the present invention provides a leg circumference measuring device, comprising a ruler 1, a thigh circumference measuring component 2, a calf circumference measuring component 3 and a patella fixing component 4. The middle portion of the ruler 1 is concave inward to form a leg fitting curved surface with an arc-shaped cross section, which is used to fit the patient's leg, so that the ruler 1 can fit the leg more closely and naturally, avoiding gaps or unevenness caused by a straight line design, and further improving the accuracy of measurement; a patella position mark 11 is provided at a preset position on the protrusion surface of the ruler 1 opposite to the leg fitting curved surface, so that the patella position mark 11 can be fixed to the patient's leg. Corresponding to the center position of the patient's patella, the convenience and accuracy of measurement are improved; the thigh circumference measuring component 2 is fixed to the end of the first end of the ruler 1, so as to measure the patient's thigh circumference through the thigh circumference measuring component 2; the calf circumference measuring component 3 is fixed to the end of the second end of the ruler 1, so as to measure the patient's calf circumference through the calf circumference measuring component 3; the patella fixing component 4 is fixedly set at the preset position of the ruler 1, and is symmetrically distributed on both sides of the patella position mark 11, so as to fix the leg circumference measuring device to the patient's knee position through the patella fixing component 4, thereby improving the convenience of the measurement operation.

[0049] In one possible embodiment, the thigh circumference measurement assembly 2 includes a first tape measure 21 and a first clip 22. The first tape measure 21 and the first clip 22 are respectively fixed on both sides of the first end of the ruler 1. The telescopic end of the first tape measure 21 is fixedly connected to the right edge of the first end of the ruler 1, and the first clip 22 is fixedly connected to the left edge of the first end of the ruler 1. The first clip 22 has a clipping area, and the body of the first tape measure 21 is clipped into the clipping area of ​​the first clip 22.

[0050] Furthermore, the first tape measure 21 includes a first shell 211 and a first soft tape measure 212. The first shell 211 is a columnar structure, and a first reel is provided inside the columnar structure; the first soft tape measure 212 is wound on the first reel, and the telescopic end of the first soft tape measure 212 extends from the first shell 211 and is fixedly connected to the right edge of the first end of the ruler 1. An elastic retraction structure is also provided between the first reel and the first soft tape measure 212.

[0051] Specifically, a thigh circumference measurement component 2 is provided at the end of the first end of the ruler 1 to measure the patient's thigh circumference through the thigh circumference measurement component 2. A retractable tape measure is provided for easy operation and storage. The elastic retraction structure in the tape measure can be implemented using existing technology, as long as the first soft tape measure 212 can be pulled out and retracted from the first shell 211 of the first tape measure 21.

[0052] The first clamping component 22 is adapted to the structure of the first shell 211 of the first tape measure 21. The first clamping component 22 can be set to a hollow cylindrical structure with an opening, so that under the action of external force, the first shell 211 can enter the clamping area from the opening to achieve clamping, and the width of the opening is smaller than the outer diameter of the first shell 211.

[0053] In one possible embodiment, the calf circumference measurement assembly 3 includes a second tape measure 31 and a second clip 32, and the second tape measure 31 and the second clip 32 are respectively fixed on both sides of the second end of the ruler 1, the telescopic end of the second tape measure 31 is fixedly connected to the right edge of the second end of the ruler 1, and the second clip 32 is fixedly connected to the left edge of the second end of the ruler 1. The second clip 32 has a clipping area, and the body of the second tape measure 31 is clipped into the clipping area of ​​the second clip 32.

[0054] In one possible embodiment, the second tape measure 31 includes a second shell 311 and a second soft tape measure 312. The second shell 311 is a columnar structure, and a second reel is provided in the columnar structure; the second soft tape measure 312 is wound on the second reel, and the telescopic end of the first soft tape measure 212 extends from the second shell 311 and is fixedly connected to the right edge of the second end of the ruler 1. An elastic retraction structure is also provided between the second reel and the second soft tape measure 312.

[0055] Specifically, a calf circumference measurement component 3 is provided at the end of the second end of the ruler 1 to measure the calf circumference of the patient through the calf circumference measurement component 3. A retractable tape measure is provided for easy operation and storage. The elastic retraction structure in the tape measure can be implemented using existing technology. As long as the first soft tape measure 212 can be pulled out and retracted from the first shell 211 of the first tape measure 21, the second tape measure 31 and the first tape measure 21 can be implemented using the same structure.

[0056] Among them, the second clamping part 32 is adapted to the structure of the second shell 311 of the second tape measure 31. The second clamping part 32 can be set to a hollow cylindrical structure with an opening, so that under the action of external force, the second shell 311 can enter the clamping area from the opening to achieve clamping, and the width of the opening is smaller than the outer diameter of the second shell 311.

[0057] In one possible embodiment, the maximum measuring length of the first soft measuring tape 212 and the second soft measuring tape 312 can be set to 60 cm to adapt to the measurement needs of patients of different body shapes, while reducing the setting size of the measuring tape to avoid waste of materials or resources.

[0058] In a possible implementation, the arc length of the cross section of the ruler 1 is 2 cm. Furthermore, the starting scales of the first soft measuring tape 212 and the second soft measuring tape 312 are both 2 cm.

[0059] Specifically, since the arc length of the cross section of the ruler 1 is 2 cm, the starting scales of the first soft measuring tape 212 and the second soft measuring tape 312 are set to 2 cm accordingly to take the width of the ruler 1 into account. This facilitates measurement readings while reducing the error caused by the size of the ruler 1 in measurement and improving measurement accuracy.

[0060] In one possible embodiment, the patellar fixing member 4 includes a pair of fixing straps, which are respectively fixed on both sides of the ruler 1 and symmetrically distributed on both sides of the patellar position mark 11. The pair of fixing straps are fixed by Velcro, so that the leg circumference measuring device of the present application is fixed to the patient's knee by the Velcro on the fixing straps.

[0061] In a possible implementation, the distance between the center of the patella position mark 11 and the setting position of the first measuring tape 21 is 15 cm, and the distance between the center of the patella position mark 11 and the setting position of the second measuring tape 31 is 10 cm.

[0062] Specifically, the distance between the center of the patella position mark 11, that is, the preset position and the outer edge of the setting position of the first tape measure 21 is 15 cm, and the distance between the center of the patella position mark 11 (that is, the preset position) and the outer edge of the setting position of the second tape measure 31 is 10 cm, so that the thigh circumference at a distance of 15 cm from the patient's patella can be measured by the thigh circumference measurement component 2, and the calf circumference at a distance of 10 cm from the patient's patella can be measured at the same time by the calf circumference measurement component 3, and at the same time, it can be ensured that the position of each test is the same. The specific setting of 15 cm and 10 cm from the patella is because the muscle tissue structure at these two positions is relatively complete, which can fully reflect the edema caused by obstruction of venous return, making the measurement results more accurate and rapid.

[0063] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology, and are not used to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0064] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A leg circumference measuring device, characterized in that: The leg circumference measuring device comprises: A ruler, wherein the middle portion of the ruler is concave inward to form a leg fitting curved surface with an arc-shaped cross section, and a patella position mark is provided at a preset position on a protruding surface of the ruler opposite to the leg fitting curved surface; a thigh circumference measuring assembly, the thigh circumference measuring assembly being fixed to the end portion of the first end of the ruler; a calf circumference measurement assembly, the calf circumference measurement assembly being fixed to an end portion of the second end of the ruler; A patella fixing piece is fixedly arranged at the preset position of the ruler, and the patella fixing piece is symmetrically distributed on both sides of the patella position mark.

2. The leg circumference measuring device according to claim 1, wherein: The thigh circumference measurement assembly includes a first tape measure and a first clip, which are respectively fixed to both sides of the first end of the ruler. The telescopic end of the first tape measure is fixedly connected to the right edge of the first end of the ruler, and the first clip is fixedly connected to the left edge of the first end of the ruler. The first clip has a clipping area, and the body of the first tape measure is clipped into the clipping area of ​​the first clip.

3. The leg circumference measuring device according to claim 2, wherein: The calf circumference measurement assembly includes a second tape measure and a second clip, which are respectively fixed to both sides of the second end of the ruler, the telescopic end of the second tape measure is fixedly connected to the right edge of the second end of the ruler, and the second clip is fixedly connected to the left edge of the second end of the ruler. The second clip has a clipping area, and the body of the second tape measure is clipped into the clipping area of ​​the second clip.

4. The leg circumference measuring device according to claim 3, wherein: The first measuring tape comprises: a first housing, wherein the first housing is a columnar structure, and a first scroll is disposed in the columnar structure; A first soft tape measure is wound around the first reel, a telescopic end of the first soft tape measure extends from the first housing and is fixedly connected to the right edge of the first end of the ruler, and an elastic retraction structure is provided between the first reel and the first soft tape measure.

5. The leg circumference measuring device according to claim 4, characterized in that: The second measuring tape comprises: a second housing, wherein the second housing is a columnar structure, and a second scroll is disposed in the columnar structure; A second soft tape measure is wound around the second reel, the telescopic end of the first soft tape measure extends from the second housing and is fixedly connected to the right edge of the second end of the ruler, and an elastic retraction structure is provided between the second reel and the second soft tape measure.

6. The leg circumference measuring device according to claim 5, wherein: The arc length of the cross section of the ruler is 2 cm.

7. The leg circumference measuring device according to claim 6, wherein: The initial scales of the first soft measuring tape and the second soft measuring tape are both 2 cm.

8. The leg circumference measuring device according to claim 1, wherein: The patella fixing component includes a pair of fixing straps, which are respectively fixed on both sides of the ruler and symmetrically distributed on both sides of the patella position mark. The pair of fixing straps are fixed by Velcro.

9. The leg circumference measuring device according to claim 7, wherein: The maximum measuring length of the first soft measuring tape and the second soft measuring tape are both 60 cm.

10. The leg circumference measuring device according to claim 9, wherein: The distance between the center of the patella position mark and the setting position of the first tape measure is 15 cm, and the distance between the center of the patella position mark and the setting position of the second tape measure is 10 cm.