Lower limb leg circumference measuring device

By designing an adjustment tube and a motor-driven clamp positioning device, the problems of inaccurate patella positioning and difficulty in simultaneous measurement of the thigh and calf in the existing technology are solved, and the accuracy and convenience of lower limb leg circumference measurement are achieved.

CN223311178UActive Publication Date: 2025-09-09THE 960TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Application Number
CN202421492581.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-09-09
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

Existing lower limb circumference measurement devices are not convenient for locating the patient's patella and are not convenient for measuring the thigh and calf at the same time, resulting in inaccurate measurements and increased operation time.

Method used

A lower limb circumference measuring device was designed, which included an adjustment tube, a motor, a driving gear, a side gear, a threaded tube and a clamping ring. The motor-driven gear drove the threaded tube to rotate, thereby positioning and fixing the clamping ring. Combined with the measuring rulers on the upper and lower rods, the thigh and calf could be measured simultaneously.

Benefits of technology

The accuracy and convenience of patella positioning are improved, and the leg circumference of the thigh and calf can be measured at the same time, which reduces the operation time and improves the accuracy and convenience of measurement.

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Abstract

The utility model discloses a lower limb leg circumference measuring device, which relates to the technical field of leg circumference measurement and comprises two adjusting pipes, two connecting rods are fixedly arranged at one ends of opposite surfaces of the two adjusting pipes, a plurality of first clamping rings and a plurality of second clamping rings are respectively arranged on two sides of the lower part of each adjusting pipe, and the first clamping rings and the second clamping rings are connected with the connecting rods. Wherein an upper rod is fixedly arranged at the outer end of one adjusting pipe, a lower rod is fixedly arranged at the outer end of the other adjusting pipe, measuring scales are fixedly arranged at one end of the upper rod and one end of the lower rod, and motors are arranged at the upper ends of the adjusting pipes. The auxiliary measurement effect is good, subsequent measurement is facilitated, the accuracy and convenience of lower limb leg circumference measurement are improved, the leg circumference of the thigh and the leg circumference of the shank can be measured at the same time, and the lower limb leg circumference of a patient suffering from lower limb thrombus can be conveniently measured.
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Description

Technical Field

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

[0002] For patients who need bed rest with some diseases such as deep vein thrombosis of the lower limbs and lower limb edema diseases, changes in leg circumference can indicate the development of the disease. If the leg circumference suddenly increases, it may indicate thrombosis or worsening edema. At this time, the lower limb leg circumference measuring device can be used to measure the patient's leg circumference.

[0003] After checking the announcement number: CN 220124686 U, a lower limb leg circumference measuring tool is disclosed. This technology discloses "including an elastic ring, the front and rear surfaces of the elastic ring are fixed with scales, the outer wall of the elastic ring is provided with a sliding groove, the upper and lower surfaces of the inner part of the sliding groove are provided with ratchet grooves, the inner part of the sliding groove is slidably connected to two arc blocks, the outer walls of the two arc blocks are fixed with a fixing rod, the other end of the right fixing rod passes through the elastic ring, and the top and bottom of the arc block are provided with sliding holes, and the elastic ring, rotating rod, fixing rod, second spring, rotating head, first magnetic block, second magnetic block, third magnetic block, blocking rod, arc block and ratchet groove are provided. The technical solution has the following advantages: the elastic ring is placed on the leg, the fixing rod is moved by fingers, the two fixing rods are closed, the blocking rod at the left end is engaged with the ratchet groove, so that the arc block and fixing rod on the left side do not move, while the arc block and fixing rod on the right side move";

[0004] However, the above technology still has the following problems:

[0005] First, the existing lower limb circumference measurement device is not convenient for locating the patient's patella. Currently, most clinical methods use a tape measure and a marker, which can easily lead to errors in positioning.

[0006] Secondly, the lower limb circumference measuring device of the prior art is not convenient for measuring the thigh and calf at the same time. The same side is measured after measuring one side, which increases the operation time.

[0007] In response to the above problems, the inventors propose a lower limb circumference measuring device to solve the above problems. Utility Model Content

[0008] In order to solve the problem of inconvenience in locating the patient's patella and facilitate simultaneous measurement of the thigh and calf, the purpose of the utility model is to provide a lower limb leg circumference measuring device.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions: a lower limb leg circumference measuring device, comprising two adjusting tubes, two connecting rods are fixedly provided at one end of the opposite surfaces of the two adjusting tubes, a plurality of first clamping rings and a plurality of second clamping rings are respectively provided on both sides of the lower side of the adjusting tubes, an upper rod is fixedly provided at the outer end of one of the adjusting tubes, and a lower rod is fixedly provided at the outer end of the other adjusting tube, a measuring ruler is fixedly provided at one end of the upper rod and the lower rod, a motor is provided at the upper end of the adjusting tube, a guard plate is fixedly provided between the adjusting tube and the motor, the guard plate can protect and support the motor, and the output end of the motor passes through The adjusting tube is fixed with a driving gear, and the outer surface of the driving gear is meshed with two side gears, and the outer end of the side gear is fixed with a threaded tube, and the inner wall of the threaded tube is threadedly sleeved with a threaded column, and the outer end of the threaded column is provided with a connecting block, and a bearing is provided between the threaded column and the connecting block, and the outer end of the connecting block is fixed with a connecting column, and the outer end of the connecting column is fixed with a movable plate, and the lower side of the inner end of the movable plate is fixed with a carrier plate, the inner end of the carrier plate on one side is fixedly connected to three first retaining rings, and the inner end of the carrier plate on the other side is fixedly connected to four second retaining rings.

[0010] Preferably, the length of the upper rod is 15 cm, the length of the lower rod is 10 cm, the outer surfaces of the two measuring rulers are provided with scales, the measuring rulers are made of soft material, the upper ends of the upper rod and the lower rod are fixed with locking blocks, and one end of the locking block is provided with a through groove for use with the measuring ruler.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model enables the device to be fixed on the patient's patella, which has a better auxiliary measurement effect, facilitates subsequent measurements, and improves the accuracy and convenience of lower limb leg circumference measurement;

[0013] 2. The utility model uses a measuring ruler for measurement, which is simple to operate and reasonably designed. It can measure the leg circumference of the thigh and calf at the same time, and can conveniently measure the leg circumference of patients suspected of having lower limb thrombosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the regulating pipe of the utility model.

[0017] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure in the middle.

[0018] Figure 4 This is a schematic diagram of the cross-section of the threaded pipe and the threaded column structure of the utility model.

[0019] Figure 5 This is a structural diagram of the utility model when two movable plates are close to each other.

[0020] In the figure: 1. Adjusting tube; 11. Connecting rod; 12. Measuring ruler; 13. Upper rod; 14. Lower rod; 15. Scale; 16. Locking block; 2. Motor; 21. Driving gear; 22. Side gear; 23. Threaded tube; 24. Threaded column; 25. Connecting block; 26. Connecting column; 27. Support member; 28. Limiting member; 29. ​​Reinforcing strip; 210. Strip groove; 3. Moving plate; 31. Carrier plate; 32. First snap ring; 33. Second snap ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: Figure 1-5 As shown, the utility model provides a lower limb leg circumference measuring device, including two adjusting tubes 1, two connecting rods 11 are fixedly provided at one end of the opposite surfaces of the two adjusting tubes 1, and multiple first clamping rings 32 and multiple second clamping rings 33 are respectively provided on both sides of the lower side of the adjusting tubes 1. An upper rod 13 is fixedly provided at the outer end of one adjusting tube 1, and a lower rod 14 is fixedly provided at the outer end of the other adjusting tube 1. A measuring ruler 12 is fixedly provided at one end of the upper rod 13 and the lower rod 14. The adjusting tube 1 and the connecting rod 11 constitute the main body of the device. The adjusting tube 1 can be adjusted, and the positioning on the patella is completed by the contact between the first clamping ring 33 and the second clamping ring 32. The measurement work is performed by the measuring ruler 12 on the upper rod 13 and the lower rod 14. The overall structural design is simple and the operation is reliable.

[0023] The upper end of the regulating tube 1 is provided with a motor 2, the output end of the motor 2 passes through the regulating tube 1 and is fixed with a driving gear 21, the outer surface of the driving gear 21 is meshed and connected to two side gears 22, the outer end of the side gear 22 is fixed with a threaded tube 23, the inner wall of the threaded tube 23 is threadedly sleeved with a threaded column 24, the outer end of the threaded column 24 is provided with a connecting block 25, the outer end of the connecting block 25 is fixed with a connecting column 26, the outer end of the connecting column 26 is fixed with a moving plate 3, the lower side of the inner end of the moving plate 3 is fixed with a carrier plate 31, the inner end of the carrier plate 31 on one side is fixedly connected to the three first snap rings 32, and the inner end of the carrier plate 31 on the other side is fixedly connected to the four second snap rings 33, the corresponding three first snap rings 3 2 and the four second clips 33 are alternately distributed at equal intervals. When the adjusting tube 1 is placed above the knee, the motors 2 on the two adjusting tubes 1 are started, thereby driving the driving gear 21 to rotate. The rotation of the driving gear 21 drives the two side gears 22 to rotate, so that the threaded tube 23 rotates, thereby driving the threaded column 24 to move outward. The threaded column 24 moves through the connecting block 25 and the connecting column 26 to drive the movable plate 3 to move. When the two movable plates 3 move inward at the same time, the first clip 32 and the second clip 33 on the carrier plate 31 approach each other until they contact the side of the patient's knee, and finally complete the positioning, so that the device can be fixed on the patient's patella, the auxiliary measurement effect is better, and subsequent measurements are convenient, thereby improving the accuracy and convenience of lower limb leg circumference measurement.

[0024] A support member 27 is fixedly provided on the middle part of the inner wall of the adjusting tube 1, and the inner ends of the two side gears 22 are rotatably connected to the support member 27. The support member 27 provides support for the side gears 22 to improve the stability of the simultaneous rotation of the threaded tubes 23 on both sides. A plurality of limit members 28 are fixedly provided on the upper and lower inner walls of the adjusting tube 1, and the inner walls of the two limit members 28 on one side are respectively in active contact with the outer surfaces of the corresponding threaded tubes 23. The limit members 28 support and protect the position of the threaded tubes 23.

[0025] Reinforcing strips 29 are fixedly provided at both ends of the connecting block 25, and the ends on the same side of the two reinforcing strips 29 are fixedly connected to the corresponding movable plate 3. The inner wall of the adjusting tube 1 is provided with a strip groove 210 used to cooperate with the reinforcing strip 29. The sliding of the reinforcing strip 29 in the strip groove 210 improves the movement stability of the connecting block 25 and the movable plate 3.

[0026] Example 2: Figure 1As shown, the length of the upper rod 13 is 15 cm, and the length of the lower rod 14 is 10 cm. The outer surfaces of the two measuring rulers 12 are provided with scales 15. The upper ends of the upper rod 13 and the lower rod 14 are fixed with locking blocks 16, and one end of the locking block 16 is provided with a through slot for use with the measuring ruler 12. The measuring ruler 12 is used to measure the leg circumference. Specifically, the measuring ruler 12 is encircled around the leg, and the end with the scale 15 is inserted into the locking block 16. At this time, the leg circumference can be measured by observing the scale 15. After the device is positioned on the patella, the thigh circumference is measured above the patella through the 15 cm upper rod 13, and the thigh circumference is measured below the patella through the 10 cm lower rod 14. The operation is simple and the design is reasonable. The leg circumference of the thigh and calf can be measured at the same time, which can conveniently measure the lower limb leg circumference of patients suspected of having lower limb thrombosis.

[0027] Working Principle: The adjusting tube 1 and connecting rod 11 constitute the main body of the device. The adjusting tube 1 can be adjusted and positioned on the patella through the contact between the first clamping ring 33 and the second clamping ring 32. Measurement is performed using the measuring ruler 12 on the upper rod 13 and the lower rod 14. The overall structural design is simple and the operation is reliable.

[0028] When the adjusting tube 1 is placed above the knee, the motors 2 on the two adjusting tubes 1 are started, thereby driving the driving gear 21 to rotate. The rotation of the driving gear 21 drives the two side gears 22 to rotate, so that the threaded tube 23 rotates, thereby driving the threaded column 24 to move outward. The threaded column 24 moves through the connecting block 25 and the connecting column 26 to drive the movable plate 3 to move. When the two movable plates 3 move inward at the same time, the first clamping ring 32 and the second clamping ring 33 on the carrying plate 31 approach each other until they contact the side of the patient's knee, and finally complete the positioning, so that the device can be fixed on the patient's patella, the auxiliary measurement effect is better, and subsequent measurements are convenient, thereby improving the accuracy and convenience of lower limb leg circumference measurement;

[0029] The support member 27 provides support for the side gear 22, improving the stability of the threaded tubes 23 on both sides rotating simultaneously, and the limit member 28 supports and protects the position of the threaded tubes 23;

[0030] By reinforcing the sliding of the strip 29 in the strip groove 210, the movement stability of the connecting block 25 and the movable plate 3 is improved;

[0031] Use the measuring ruler 12 to measure the leg circumference. Specifically, put the measuring ruler 12 around the leg, insert the end with the scale 15 into the locking block 16, and then observe the scale 15 to measure the leg circumference. After the device is positioned on the patella, the thigh circumference is measured above the patella through the 15cm upper rod 13, and the thigh circumference is measured below the patella through the 10cm lower rod 14. The device is simple to operate and reasonably designed. It can measure the leg circumference of the thigh and calf at the same time, and can conveniently measure the leg circumference of the lower limbs of patients suspected of having lower limb thrombosis.

[0032] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A lower limb circumference measuring device, comprising two adjustment tubes (1), characterized in that: Two connecting rods (11) are fixedly provided at one end of the opposite surfaces of the two adjusting tubes (1), and a plurality of first clamping rings (32) and a plurality of second clamping rings (33) are respectively provided on both sides of the lower side of the adjusting tubes (1). An upper rod (13) is fixedly provided at the outer end of one of the adjusting tubes (1), and a lower rod (14) is fixedly provided at the outer end of the other adjusting tube (1). A measuring ruler (12) is fixedly provided at one end of each of the upper rod (13) and the lower rod (14).

2. A lower limb circumference measuring device according to claim 1, characterized in that: The length of the upper rod (13) is 15 cm, the length of the lower rod (14) is 10 cm, the outer surfaces of the two measuring rulers (12) are provided with scales (15), the upper ends of the upper rod (13) and the lower rod (14) are fixed with locking blocks (16), and one end of the locking block (16) is provided with a through slot for use with the measuring ruler (12).

3. The lower limb circumference measuring device according to claim 1, characterized in that: The upper end of the regulating tube (1) is provided with a motor (2), the output end of the motor (2) passes through the regulating tube (1) and is fixedly provided with a driving gear (21), the outer surface of the driving gear (21) is meshedly connected with two side gears (22), the outer end of the side gear (22) is fixedly provided with a threaded tube (23), the inner wall of the threaded tube (23) is threadedly sleeved with a threaded column (24), the outer end of the threaded column (24) is provided with a connecting block (25), the outer end of the connecting block (25) is fixedly provided with a connecting column (26), and the outer end of the connecting column (26) is fixedly provided with a movable plate (3).

4. A lower limb circumference measuring device according to claim 3, characterized in that: A carrier plate (31) is fixedly provided on the lower side of the inner end of the movable plate (3), the inner end of the carrier plate (31) on one side is fixedly connected to three first clamping rings (32), and the inner end of the carrier plate (31) on the other side is fixedly connected to four second clamping rings (33).

5. The lower limb circumference measuring device according to claim 3, characterized in that: A support member (27) is fixedly provided at the middle portion of the inner wall of the regulating tube (1), and the inner ends of the two side gears (22) are both rotatably connected to the support member (27).

6. The lower limb circumference measuring device according to claim 3, characterized in that: A plurality of limiting members (28) are fixedly provided on the upper and lower inner walls of the regulating tube (1), and the inner walls of the two limiting members (28) on one side are in movable contact with the outer surfaces of the corresponding threaded tubes (23).

7. The lower limb circumference measuring device according to claim 3, characterized in that: Both ends of the connecting block (25) are fixedly provided with reinforcing strips (29), and the ends on the same side of the two reinforcing strips (29) are fixedly connected to the corresponding movable plate (3), and the inner wall of the regulating tube (1) is provided with a strip groove (210) used in conjunction with the reinforcing strips (29).

8. The lower limb circumference measuring device according to claim 4, characterized in that: The corresponding three first clamping rings (32) and four second clamping rings (33) are alternately distributed at equal intervals.

Citation Information

Patent Citations

  • Lower limb leg circumference measuring tool

    CN220124686U