Measurer for comparing arm girth and leg girth on two sides
By designing a measuring device that compares the bilateral arm and leg circumferences, using a sliding ruler and a magnet block for fixation and a limit column for support, the problem of measurement error caused by inconsistent swelling of the patient's limbs is solved, and accurate measurement and convenient recording of arm and leg circumferences are achieved.
Patent Information
- Application Number
- CN202422735574.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In the existing technology, the inconsistent degree of swelling in the left and right, upper and lower limbs of patients leads to inconsistent measurement positions of the measuring tape, resulting in large measurement errors, especially when measuring arm circumference and leg circumference, which makes accurate comparison difficult.
A measuring device for comparing bilateral arm and leg circumferences was designed. The device includes a storage box, a sliding ruler, a tape measure, a magnet, a limit column, and an auxiliary mechanism. The device uses a sliding ruler to measure at the patient's midline, and is fixed with a magnet, supported by a limit column, and has an auxiliary mechanism to improve measurement accuracy and storage convenience.
It achieves accurate measurement of the patient's arm and leg circumference, reduces measurement errors, improves the uniformity and convenience of measurement, and ensures the accuracy of measurement results and clarity of records.
Smart Images

Figure CN223380590U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of measuring instruments, in particular to a measuring instrument for comparing bilateral arm circumferences and leg circumferences. Background Art
[0002] Measuring arm circumference can be used to assess a patient's nutritional status, monitor children's growth and development, and compare the arm circumference of the affected limb before and after breast cancer surgery to monitor edema in the affected limb and provide a reliable basis for treatment. However, the current clinical method for measuring arm circumference involves first using a ruler to determine the desired location on the patient, then using a tape measure to measure around the area. This method is inconvenient and can lead to inaccurate measurements. Furthermore, the measurement results are recorded in a chaotic and inconsistent manner, making it difficult to record them.
[0003] Existing technology, such as the "Arm Circumference Measuring Device" (China Authorization Publication No. CN213345644U), includes a scale plate and a measuring box. The scale plate is provided with a placement slot and a slide slot along its length. A suitable recording paper strip can be removably placed in the placement slot. The bottom of the measuring box is connected to a sliding foot that fits the slide slot. The measuring box and the scale plate are connected by the sliding rod and the slide slot, and the measuring box can be moved along the slide slot under force. A soft tape measure is wrapped around the measuring box, and the pull head of the tape measure extends through the left side wall of the measuring box. This measuring device not only conveniently and effectively measures the patient's arm circumference at different arm positions, but also can uniformly record multiple measurement information.
[0004] When measuring leg circumference in existing technologies, due to the inconsistent degree of swelling in patients' left and right limbs and upper and lower limbs, the measuring tape may cause large measurement errors due to inconsistent measurement positions.
[0005] Therefore, it is necessary to provide a measuring device for comparing bilateral arm circumference and leg circumference to solve the above technical problems. Utility Model Content
[0006] The utility model provides a measuring device for comparing bilateral arm and leg circumferences, which solves the problem that the measurement error of a measuring tape is large due to inconsistent measurement positions because the swelling degrees of the left and right limbs and upper and lower limbs of clinical patients are inconsistent.
[0007] In order to solve the above technical problems, the utility model provides a measuring device for comparing bilateral arm circumference and leg circumference, including a storage box, a sliding ruler is movably sleeved inside the storage box, one end of the sliding ruler is fixedly connected to a baffle, the front of the storage box is fixedly connected to a magnet block, a tape measure is movably sleeved on the side of the storage box, a winding column is movably sleeved inside the storage box, a limiting column is movably sleeved inside the storage box, and a limiting mechanism is provided on the side of the storage box, an auxiliary mechanism is provided on the side of the tape measure, and a shock absorbing mechanism is provided at one end of the sliding ruler.
[0008] Preferably, there are two measuring tapes, and the two measuring tapes are symmetrically distributed with the sliding ruler as the axis of symmetry.
[0009] Preferably, the number of the magnet blocks is two, and the two magnet blocks are symmetrically distributed with the baffle as the symmetry axis.
[0010] Preferably, the measuring tape is movably sleeved on the outside of the winding column, and the measuring tape and the sliding ruler are perpendicular to each other.
[0011] Preferably, the limiting posts are in close contact with the sliding ruler, and there are several limiting posts.
[0012] Preferably, the limiting mechanism includes a limiting sleeve, the limiting sleeve is fixedly sleeved on the side surface of the storage box, and the interior of the limiting sleeve is movably sleeved on the limiting rod.
[0013] Preferably, the auxiliary mechanism includes a ferrule, the ferrule is fixedly sleeved on one end of the measuring tape, and a snap ring is movably sleeved inside the ferrule.
[0014] Preferably, the shock absorbing mechanism includes a clamping block, the clamping block is fixedly connected to one end of the sliding ruler, the exterior of the clamping block is fixedly connected to a shock absorbing plate, and the material of the shock absorbing plate is rubber material.
[0015] Compared with the related art, the measuring device for comparing bilateral arm circumference and leg circumference provided by the present invention has the following beneficial effects:
[0016] The utility model provides a measuring device for comparing the arm circumference and leg circumference of both sides. By setting a tape measure, when it is necessary to measure the arm circumference and leg circumference, the sliding ruler is stretched so that the sliding ruler can be removed from the inside of the storage box. At this time, the sliding ruler is placed at the vertical line position of the patient's body, and the tape measure is further stretched so that the tape measure can measure the patient's arm circumference and leg circumference. In this way, the two tape measures can accurately measure the swelling degree values of the patient's arm circumference and leg circumference, thereby avoiding the problem of large measurement error caused by large reference position error in leg circumference measurement, thereby improving the accuracy of arm circumference and leg circumference measurement.
[0017] By setting up the magnet block, when the leg circumference measurement is completed, the sliding ruler is pushed so that the sliding ruler can drive the baffle to be tightly pressed against the surface of the magnet block, thereby achieving the fixing effect of the baffle, so that the sliding ruler can be fixed inside the storage box, thereby achieving the storage effect of the sliding ruler, and bringing convenience to the use and storage of the measuring instrument. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic structural diagram of a preferred embodiment of a measuring device for comparing bilateral arm and leg circumferences provided by the present invention;
[0019] Figure 2 for Figure 1 A schematic diagram of the structure of a winding column in a measuring device for comparing bilateral arm and leg circumferences is shown;
[0020] Figure 3 for Figure 1 A schematic diagram of the structure of a storage box in a measuring device for comparing bilateral arm and leg circumferences is shown;
[0021] Figure 4 for Figure 1 The figure shows a schematic diagram of the structure of a sliding ruler in a measuring device for comparing bilateral arm and leg circumferences.
[0022] Numbers in the figure: 1. Storage box; 2. Sliding ruler; 3. Baffle; 4. Magnet block; 5. Tape measure; 6. Winding column; 7. Limit column; 8. Limit mechanism; 81. Limit sleeve; 82. Limit rod; 9. Auxiliary mechanism; 91. Clamping sleeve; 92. Snap ring; 10. Shock-absorbing mechanism; 101. Clamping block; 102. Shock-absorbing plate. DETAILED DESCRIPTION
[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples.
[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 ,in, Figure 1 This is a schematic structural diagram of a preferred embodiment of a measuring device for comparing bilateral arm and leg circumferences provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of a winding column in a measuring device for comparing bilateral arm and leg circumferences is shown; Figure 3 for Figure 1 A schematic diagram of the structure of a storage box in a measuring device for comparing bilateral arm and leg circumferences is shown; Figure 4 for Figure 1A schematic diagram of the structure of a sliding ruler in a measuring device for comparing bilateral arm and leg circumferences is shown. The measuring device for comparing bilateral arm and leg circumferences comprises a storage box 1, a sliding ruler 2 movably sleeved within the storage box 1, a baffle 3 fixedly connected to one end of the sliding ruler 2, a magnet 4 fixedly connected to the front of the storage box 1, a measuring tape 5 movably sleeved on the side of the storage box 1, a winding post 6 movably sleeved within the storage box 1, a limit post 7 movably sleeved within the storage box 1, a limit mechanism 8 provided on the side of the storage box 1, an auxiliary mechanism 9 provided on the side of the measuring tape 5, and a shock absorbing mechanism 10 provided on one end of the sliding ruler 2.
[0025] There are two tape measures 5, and the two tape measures 5 are symmetrically distributed with the sliding ruler 2 as the axis of symmetry; by setting the tape measures 5, when it is necessary to measure the arm circumference and leg circumference, the sliding ruler 2 is stretched so that the sliding ruler 2 can be removed from the inside of the storage box 1. At this time, the sliding ruler 2 is placed at the perpendicular position of the patient's body, and then the tape measures 5 are stretched so that the tape measures 5 can measure the patient's arm circumference and leg circumference, so that the two tape measures 5 can accurately measure the swelling degree values of the patient's arm circumference and leg circumference, thereby avoiding the problem of large measurement error caused by large reference position error in leg circumference measurement, thereby improving the accuracy of arm circumference and leg circumference measurement.
[0026] There are two magnet blocks 4, and the two magnet blocks 4 are symmetrically distributed with the baffle 3 as the symmetry axis; by setting the magnet blocks 4, when the leg circumference measurement is completed, the sliding ruler 2 is pushed so that the sliding ruler 2 can drive the baffle 3 to be tightly squeezed on the surface of the magnet block 4, thereby achieving the fixing effect of the baffle 3, so that the sliding ruler 2 can be fixed inside the storage box 1, thereby achieving the storage effect of the sliding ruler 2.
[0027] The tape measure 5 is movably sleeved on the outside of the winding column 6, and the tape measure 5 and the sliding ruler 2 are perpendicular to each other; by setting the tape measure 5, when the leg circumference measurement is completed, the winding column 6 is rotated so that the winding column 6 can wind up the tape measure 5, so that the tape measure 5 can be wound into the inside of the storage box 1, thereby achieving the winding and storage effect of the tape measure 5.
[0028] The limiting posts 7 are in close contact with the sliding ruler 2, and there are several limiting posts 7. By setting the limiting posts 7, when the sliding ruler 2 is pushed or pulled, the limiting posts 7 can support and limit the reciprocating sliding ruler 2, thereby avoiding the problem of frequent friction between the sliding ruler 2 and the inner wall of the storage box 1 when pushing or pulling, thereby improving the smoothness of the sliding ruler 2 when pushing or pulling.
[0029] The limiting mechanism 8 includes a limiting sleeve 81, which is fixedly sleeved on the side of the storage box 1, and the limiting sleeve 81 is movably sleeved inside the limiting sleeve 81 to limit the limiting rod 82; by setting the limiting mechanism 8, when the tape measure 5 is rolled up, the limiting sleeve 81 can limit the rolled up tape measure 5, thereby avoiding the problem of position deviation of the tape measure 5 when it is rolled up, causing the tape measure 5 to fold, thereby improving the stability of the tape measure 5 when it is rolled up.
[0030] The auxiliary mechanism 9 includes a clamping sleeve 91, which is fixedly sleeved on one end of the tape measure 5, and a clamping ring 92 is movably sleeved inside the clamping sleeve 91; by setting the auxiliary mechanism 9, when the tape measure 5 is wound, the clamping ring 92 and the clamping sleeve 91 are able to limit the wound tape measure 5, thereby avoiding the problem that the tape measure 5 is difficult to pull out when it is completely stored in the storage box 1, thereby improving the convenience of stretching the tape measure 5.
[0031] The shock-absorbing mechanism 10 includes a clamping block 101, which is fixedly connected to one end of the sliding ruler 2. A shock-absorbing plate 102 is fixedly connected to the outside of the clamping block 101, and the material of the shock-absorbing plate 102 is a rubber material. By providing the shock-absorbing mechanism 10, when the sliding ruler 2 is quickly withdrawn, the clamping block 101 and the shock-absorbing plate 102 are able to limit the extension length of the sliding ruler 2, thereby avoiding the problem of the sliding ruler 2 falling out of the storage box 1 when it is quickly withdrawn, thereby improving the stability of the sliding ruler 2 when it is stretched.
[0032] The working principle of the measuring device for comparing bilateral arm and leg circumferences provided by the utility model is as follows:
[0033] Step 1: First, when it is necessary to measure the arm circumference and leg circumference, stretch the sliding ruler 2 so that the sliding ruler 2 can be removed from the inside of the storage box 1. At this time, the sliding ruler 2 is placed at the vertical position of the patient's body, and then the tape measure 5 is stretched so that the tape measure 5 can measure the patient's arm circumference and leg circumference, so that the two tape measures 5 can accurately measure the swelling degree of the patient's arm circumference and leg circumference, thereby avoiding the problem of large measurement error caused by large reference position error in leg circumference measurement, thereby improving the accuracy of arm circumference and leg circumference measurement. When the leg circumference measurement is completed, push the sliding ruler 2 so that the sliding ruler 2 can drive the baffle 3 to be tightly squeezed on the magnet block. 4, thereby achieving the fixing effect of the baffle 3, so that the sliding ruler 2 can be fixed inside the storage box 1, thereby achieving the storage effect of the sliding ruler 2. When the leg circumference measurement is completed, the winding column 6 is rotated to allow the winding column 6 to wind up the tape measure 5, so that the tape measure 5 can be wound into the storage box 1, thereby achieving the winding and storage effect of the tape measure 5. When the sliding ruler 2 is pushed and pulled, the limiting column 7 is able to support and limit the reciprocating sliding ruler 2, thereby avoiding the problem of frequent friction between the sliding ruler 2 and the inner wall of the storage box 1 when pushing and pulling, thereby improving the smoothness of the sliding ruler 2 when pushing and pulling;
[0034] Step 2: When the tape measure 5 is rolled up, the limiting sleeve 81 is able to limit the rolled up tape measure 5, thereby avoiding the problem of position displacement of the tape measure 5 during rolling up, which causes the tape measure 5 to fold, thereby improving the stability of the tape measure 5 during rolling up. When the tape measure 5 is rolled up, the retaining ring 92 and the retaining sleeve 91 are able to limit the rolled up tape measure 5, thereby avoiding the problem of the tape measure 5 being difficult to pull out when it is completely stored in the storage box 1, thereby improving the convenience of stretching the tape measure 5. When the sliding ruler 2 is quickly pulled out, the clamping block 101 and the shock-absorbing plate 102 are able to limit the extended length of the sliding ruler 2, thereby avoiding the problem of the sliding ruler 2 falling off from the storage box 1 when it is quickly pulled out, thereby improving the stability of the sliding ruler 2 during stretching.
[0035] Compared with the related art, the measuring device for comparing bilateral arm circumference and leg circumference provided by the present invention has the following beneficial effects:
[0036] By setting up the tape measure 5, when it is necessary to measure the arm circumference and leg circumference, the sliding ruler 2 is stretched so that the sliding ruler 2 can be removed from the inside of the storage box 1. At this time, the sliding ruler 2 is placed at the vertical line position of the patient's body, and then the tape measure 5 is stretched so that the tape measure 5 can measure the patient's arm circumference and leg circumference, so that the two tape measures 5 can accurately measure the swelling degree values of the patient's arm circumference and leg circumference, thereby avoiding the problem of large measurement error caused by large error in the reference position of leg circumference measurement, thereby improving the accuracy of arm circumference and leg circumference measurement.
[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A measuring device for comparing bilateral arm circumference and leg circumference, comprising a storage box (1), characterized in that: The storage box (1) is movably sleeved with a sliding ruler (2), one end of the sliding ruler (2) is fixedly connected to a baffle (3), the front of the storage box (1) is fixedly connected to a magnet block (4), the side of the storage box (1) is movably sleeved with a tape measure (5), the interior of the storage box (1) is movably sleeved with a winding column (6), the interior of the storage box (1) is movably sleeved with a limiting column (7), and a limiting mechanism (8) is provided on the side of the storage box (1), an auxiliary mechanism (9) is provided on the side of the tape measure (5), and one end of the sliding ruler (2) is provided with a shock absorbing mechanism (10).
2. A measuring device for comparing bilateral arm and leg circumferences according to claim 1, characterized in that: The number of the measuring tapes (5) is two, and the two measuring tapes (5) are symmetrically distributed with the sliding ruler (2) as a symmetry axis.
3. The measuring device for comparing bilateral arm circumference and leg circumference according to claim 1, characterized in that: The number of the magnet blocks (4) is two, and the two magnet blocks (4) are symmetrically distributed with the baffle (3) as the symmetry axis.
4. The measuring device for comparing bilateral arm and leg circumferences according to claim 1, characterized in that: The tape measure (5) is movably sleeved on the outside of the winding column (6), and the tape measure (5) and the sliding ruler (2) are perpendicular to each other.
5. The measuring device for comparing bilateral arm and leg circumferences according to claim 1, characterized in that: The limiting posts (7) are in close contact with the sliding ruler (2), and there are several limiting posts (7).
6. The measuring device for comparing bilateral arm circumference and leg circumference according to claim 1, characterized in that: The limiting mechanism (8) comprises a limiting sleeve (81), the limiting sleeve (81) is fixedly sleeved on the side of the storage box (1), and the interior of the limiting sleeve (81) is movably sleeved on a limiting rod (82).
7. The measuring device for comparing bilateral arm and leg circumferences according to claim 1, characterized in that: The auxiliary mechanism (9) comprises a clamping sleeve (91), the clamping sleeve (91) is fixedly sleeved on one end of the tape measure (5), and a clamping ring (92) is movably sleeved inside the clamping sleeve (91).
8. The measuring device for comparing bilateral arm circumference and leg circumference according to claim 1, characterized in that: The shock absorbing mechanism (10) comprises a clamping block (101), the clamping block (101) being fixedly connected to one end of the sliding ruler (2), and a shock absorbing plate (102) being fixedly connected to the outside of the clamping block (101), the material of the shock absorbing plate (102) being a rubber material.
Citation Information
Patent Citations
Arm circumference measurer
CN213345644U