A tool for measuring leg circumference

Abstract

This utility model relates to a tool for measuring leg circumference, belonging to the field of medical auxiliary device technology. It includes a flexible measuring tape, and further includes a primary positioning ruler and a secondary positioning ruler that are slidably connected. The bottom of the secondary positioning ruler has a fixed piece and a movable piece slidably connected thereto. A flexible measuring tape is located on one side of the primary positioning ruler, and one end of the flexible tape is slidably connected to the primary positioning ruler. The secondary positioning ruler has an I-shaped structure, and a vertical through-type groove that cooperates with the secondary positioning ruler is opened at the center of the primary positioning ruler. The tool for measuring leg circumference provided by this utility model, through the cooperation of the primary positioning ruler, secondary positioning ruler, fixed piece, movable piece, and flexible measuring tape, can quickly and accurately locate the position 15cm above and 10cm below the midpoint of the patella for leg circumference measurement, comprehensively improving the convenience of leg circumference measurement when monitoring the treatment effect of lower extremity deep vein thrombosis.

Description

Technical Field

[0001] This utility model belongs to the field of medical auxiliary device technology, specifically relating to a tool for measuring leg circumference. Background Technology

[0002] Measuring leg circumference is an important method for observing the treatment effect of lower extremity deep vein thrombosis and understanding disease progression. In practice, nurses need to measure the length of the patient's patella to determine its midpoint and mark it on the patient's leg. Then, based on the location of the patella's midpoint, they measure and mark positions 15cm above and 10cm below the midpoint. Finally, they use a soft measuring tape to measure around the leg at these two points to obtain the leg circumference data. This existing measurement method is inconvenient for both nurses and patients. On the one hand, nurses need to perform multiple measurements on the patient's leg, and patient cooperation and operational accuracy both affect measurement efficiency and accuracy. On the other hand, the need to directly mark multiple points on the patient's leg during measurement not only affects the patient's appearance but also requires the patient to clean up themselves, increasing the burden of medical care. To address these inconveniences, this invention proposes a tool for measuring leg circumference. Utility Model Content

[0003] The purpose of this invention is to provide a tool for measuring leg circumference in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] This utility model provides a tool for measuring leg circumference, including a flexible measuring tape, and a primary positioning ruler and a secondary positioning ruler that are slidably connected. The bottom of the secondary positioning ruler is provided with a fixed piece and a movable piece is slidably connected thereto. A flexible measuring tape is provided on one side of the primary positioning ruler and one end of the flexible measuring tape is slidably connected to the primary positioning ruler.

[0006] As a further optimization of this utility model, the secondary positioning ruler has an I-shaped structure, and a vertical through-type groove that cooperates with the secondary positioning ruler is provided at the center of the primary positioning ruler.

[0007] As a further optimization of this utility model, the starting end of the scale of the ruler is provided with a connecting block, and the other end is connected with a pull ring. The connecting block is slidably connected to the first-level positioning ruler through a slider.

[0008] As a further optimization of this utility model, the connecting block and the slider are rotatably connected through a damping shaft.

[0009] As a further optimization of this utility model, magnetic blocks are provided at both ends of the sliding groove that cooperates with the slider in the first-level positioning ruler, and the magnetic blocks correspond one-to-one with the pull ring and the slider.

[0010] As a further optimization of this utility model, the zero mark on the secondary positioning scale is flush with the side wall of the fixed plate near the movable plate, the movable plate slides along the mark on the secondary positioning scale, and the side wall of the movable plate near the fixed plate is a vertical surface.

[0011] The beneficial effects of this utility model are as follows:

[0012] The tool for measuring leg circumference proposed in this utility model can quickly and accurately locate the midpoint of the patient's patella through the cooperation of a secondary positioning ruler, a fixed plate, and a movable plate. Then, through the cooperation of a primary positioning ruler and a secondary positioning ruler, the positions 15cm above and 10cm below the midpoint of the patella can be located sequentially. Finally, by using a soft measuring tape in conjunction with the primary positioning ruler, the patient's leg circumference can be measured at 15cm above and 10cm below the midpoint of the patella. The operation does not require multiple measurements, positioning, and marking on the patient's leg, making it easy to operate and highly efficient. Moreover, the device can be adjusted to suit patients of different body types, comprehensively improving the convenience of leg circumference measurement when monitoring the treatment effect of lower extremity deep vein thrombosis. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall appearance of this utility model;

[0014] Figure 2 This is a schematic diagram showing the coordination of the fixed plate, the movable plate, and the secondary positioning ruler;

[0015] Figure 3 This is a schematic diagram of the utility model in use;

[0016] Figure 4 This is a cross-sectional view of the present invention.

[0017] In the diagram: 1. Primary positioning ruler; 2. Secondary positioning ruler; 3. Flexible measuring tape; 4. Connecting block; 5. Sliding block; 6. Pull ring; 7. Magnetic block; 8. Fixing plate; 9. Movable plate. Detailed Implementation

[0018] The present application will now be described in further detail. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example 1

[0020] like Figure 1-4As shown, the tool for measuring leg circumference in this embodiment includes a flexible ruler 3, and also includes a primary positioning ruler 1 and a secondary positioning ruler 2 that are slidably connected. The bottom of the secondary positioning ruler 2 is provided with a fixed piece 8 and a movable piece 9 is slidably connected. The flexible ruler 3 is provided on one side of the primary positioning ruler 1 and one end of the flexible ruler 3 is slidably connected to the primary positioning ruler 1.

[0021] When using this tool to measure leg circumference, first, ensure the patient's leg is straight. Then, place the tool on the patient's leg, positioning the secondary positioning ruler 2 above the patella. Place the fixed piece 8 against one side of the patella, and then slide the movable piece 9 so that it rests against the other side of the patella. Determine the scale corresponding to the center point between the movable piece 9 and the fixed piece 8 based on the scale markings on the movable piece 9. Use the secondary positioning ruler 2 as the marked scale line for the midpoint of the patella. Next, move the primary positioning ruler 1 until one of its scale lines aligns with the marked scale line. Use this scale line as the reference scale line. Then, according to the scale line on the primary positioning ruler 1, move the slider 5 to a position 15cm above the patella and 15cm from the reference scale line. After alignment, use a soft measuring tape to measure the leg circumference. Finally, move the slider 5 to a position 10cm below the patella and 10cm from the reference scale line to measure the leg circumference again. This completes the leg circumference observation.

[0022] It is important to emphasize that when measuring the leg circumference of two locations, the specific position of the reference scale line on the primary positioning ruler 1 can be adjusted according to the needs. For example, when the scale of the primary positioning ruler 1 is set to 15cm, when positioning 15cm above the patella, the outermost scale line of the primary positioning ruler 1 should be aligned with the marked scale line as the reference scale line. When positioning 10cm below the patella, first move the primary positioning ruler 1 to adjust the position of the reference scale line so that the length of the scale line of the primary positioning ruler 1 below the patella is greater than 10cm.

[0023] Preferably, the secondary positioning ruler 2 has an I-shaped structure, and the center of the primary positioning ruler 1 has a vertical through-type sliding groove that matches the secondary positioning ruler 2. This structure ensures that there is no obstruction on both sides of the primary positioning ruler 1, making it convenient to adjust the soft measuring tape 3 for leg circumference measurement.

[0024] Preferably, the starting end of the scale of the flexible ruler 3 is provided with a connecting block 4, and the other end is connected with a pull ring 6. The connecting block 4 is slidably connected to the first-level positioning ruler 1 through the slider 5. The position of the starting end of the scale of the flexible ruler 3 can be positioned by using the connecting block 4 and the slider 5.

[0025] Connecting block 4 and slider 5 are rotatably connected via a damping shaft;

[0026] The sliding groove inside the first-level positioning ruler 1 that cooperates with the slider 5 is provided with magnetic blocks 7 at both ends. The magnetic blocks 7 correspond one-to-one with the pull ring 6 and the slider 5.

[0027] It should be emphasized that the length of the flexible ruler 3 is not limited by the length of the primary positioning ruler 1. When not in use, the flexible ruler 3 can be rolled up, and the slider 5 and pull ring 6 can be aligned with the corresponding magnetic blocks 7 to fix the two ends of the flexible ruler 3. This completes the storage of the flexible ruler 3. When in use, the flexible ruler 3 is unfolded and then rotated until it is perpendicular to the top of the primary positioning ruler 1.

[0028] Preferably, the zero mark on the secondary positioning scale 2 is flush with the side wall of the fixed piece 8 closest to the movable piece 9, the movable piece 9 slides along the mark on the secondary positioning scale 2, and the side wall of the movable piece 9 closest to the fixed piece 8 is a vertical surface.

[0029] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A tool for measuring leg circumference, comprising a flexible measuring tape (3), characterized in that, It also includes a primary positioning ruler (1) and a secondary positioning ruler (2) that are slidably connected. The secondary positioning ruler (2) has a fixed piece (8) at its bottom and a movable piece (9) that is slidably connected to it. The primary positioning ruler (1) has a flexible ruler (3) on one side and one end of the flexible ruler (3) is slidably connected to the primary positioning ruler (1).

2. A tool for leg circumference measurement according to claim 1, characterized in that, The secondary positioning ruler (2) has an I-shaped structure, and the center of the primary positioning ruler (1) has a vertical through-type groove that cooperates with the secondary positioning ruler (2).

3. A tool for leg circumference measurement according to claim 1, wherein The soft ruler (3) has a connecting block (4) at the starting end of the scale and a pull ring (6) at the other end. The connecting block (4) is slidably connected to the first-level positioning ruler (1) through a slider (5).

4. A tool for leg circumference measurement according to claim 3, wherein The connecting block (4) and the slider (5) are rotatably connected by a damping shaft.

5. A tool for leg circumference measurement according to claim 1, wherein The sliding groove opened in the first-level positioning ruler (1) that cooperates with the slider (5) is provided with magnetic blocks (7) at both ends. The magnetic blocks (7) correspond one-to-one with the pull ring (6) and the slider (5).

6. A tool for leg circumference measurement according to claim 1, wherein The zero mark on the secondary positioning ruler (2) is flush with the side wall of the fixed piece (8) near the movable piece (9). The movable piece (9) slides along the mark on the secondary positioning ruler (2), and the side wall of the movable piece (9) near the fixed piece (8) is a vertical surface.

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