Leg circumference measuring tool

Abstract

The utility model relates to the technical field of medical auxiliary instruments, and discloses a leg circumference measuring tool, which comprises a patella midpoint fixing device, a handheld measuring device and a measuring hard tube, and is characterized in that the handheld measuring device comprises a thigh circumference measuring tool and a shank circumference measuring tool; the top ends of the thigh circumference measuring tool, the patella midpoint fixing device and the shank circumference measuring tool are sequentially connected with the measuring hard tube. The multifunctional desk lamp is simple in structure, wide in application range and convenient to store and assemble; medical staff do not need to stoop to the measuring position of a patient for reading, operation can be achieved with one hand, the leg circumference can be directly read at the same time, operation is convenient, fast and accurate, the workload of the medical staff is relieved, and the working efficiency of the medical staff is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a tool for measuring the leg circumference of a VTE patient. Background Art

[0002] Deep vein thrombosis (DVT) refers to a venous reflux disorder caused by abnormal coagulation of blood in the deep veins, which often occurs in the lower limbs. DVT and PE are collectively referred to as venous thromboembolism (VTE), which are manifestations of the same disease at different stages. In the past decade, the hospitalization rate of VTE in China has been increasing year by year. VTE is the third most common cardiovascular disease after ischemic heart disease and stroke, and PE is one of the main causes of sudden death.

[0003] The current measurement work generally requires manual measurement of the leg circumference of both lower limbs, using tape measures, markers, etc., which is time-consuming and requires a lot of preparations, which is neither time-saving nor labor-saving. Different measurers will put the soft tape measure in different degrees of contact with the patient's leg skin during measurement. Even if it is the same measurer, the degree of contact between the soft tape measure and the leg will be different each time in different measurements. The muscles and tissues on the legs are elastic. If the degree of contact is different each time, the degree to which the leg tissues or muscles are tightened will also be different, affecting the measurement results.

[0004] The patent with authorization announcement number CN 217886009 U discloses a VTE patient leg circumference measuring device, which is used to measure the leg circumference of patients with lower limb venous thrombosis, including a measuring device body, which includes a thigh circumference measuring ring, a calf circumference measuring ring and a positioning ring. The thigh circumference measuring ring and the positioning ring are fixedly connected by a first telescopic rod, and the calf circumference measuring ring and the positioning ring are fixedly connected by a second telescopic rod. Inflatable bags are provided on the inner side walls of the thigh circumference measuring ring and the calf circumference measuring ring. Infrared circumference measuring devices and data processing devices are installed on the thigh circumference measuring ring and the calf circumference measuring ring, and the infrared circumference measuring device and the data processing device are electrically connected.

[0005] The leg circumference measuring device uses an air pump to inflate the airbag, which is then pressed against the patient's thigh and calf. An infrared sensor is then used to detect the distance between the inner and outer layers of the airbag. The main control unit of the data processing device then further analyzes and calculates the circumference of the inner layer of the airbag based on the distance. The circumference of the inner layer of the airbag is the patient's leg circumference.

[0006] The entire measurement process requires the use of an external air pump to inflate the airbag, infrared sensor detection, and then the setting of the data processing device to obtain the leg circumference. Once the airbag and air pump fail, the infrared sensor fails, the measurement will not be able to obtain accurate data or even be impossible to measure. The whole operation is relatively complicated. Summary of the invention

[0007] In view of the above-mentioned problems, the utility model aims to provide a leg circumference measuring tool with a simple structure, a wide range of applications, and convenient storage and assembly; during use, medical staff do not need to bend over to the patient's measurement position to read the readings, and it can be operated with one hand to directly read the leg circumference readings at the same time, thereby ensuring the accuracy of the measurement results. The operation is convenient, fast and accurate, which reduces the workload of medical staff and improves their work efficiency.

[0008] The main idea of ​​the technical solution adopted by the utility model is: by setting the top ends of the thigh circumference measuring tool, the patella midpoint fixing device and the calf circumference measuring tool to be connected with the measuring hard tube in sequence, the medical staff does not need to bend over to the patient's measurement position to read the reading, and it can be operated with one hand to directly read the leg circumference readings at the same time.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0010] A leg circumference measuring tool comprises a patella midpoint fixing device, a handheld measuring device, and a measuring hard tube.

[0011] The handheld measuring device includes a thigh circumference measuring tool and a calf circumference measuring tool;

[0012] The top ends of the thigh circumference measuring tool, the patella midpoint fixing device and the calf circumference measuring tool are connected to the measuring hard tube in sequence.

[0013] The utility model is further configured as follows: the patella midpoint fixing device comprises a wrapping structure provided with a patella positioning hole, and a supporting structure for connecting the wrapping structure and the measuring hard tube.

[0014] In the above solution, the support structure includes a support frame and a connecting buckle arranged at the top of the support frame, and the connecting buckle is movably connected to the support frame.

[0015] In the above scheme, the connecting buckle is symmetrically provided with connecting holes on the left and right sides and the front and rear sides, and the connecting holes are installed with retaining springs.

[0016] In the above scheme, the connection between the measuring hard tube and the support frame and the connecting hole is provided with a card slot.

[0017] In the above solution, the support frame includes at least two symmetrically arranged support rods, and the support rods are telescopic.

[0018] The beneficial effect of the utility model is that compared with the prior art, the improvement of the utility model is that:

[0019] By setting the thigh circumference measuring tool, the patella midpoint fixing device and the calf circumference measuring tool to be connected to the measuring hard tube at the top in sequence, the structure is simple, the application range is wide, and it is convenient to store and assemble; the medical staff does not need to bend over to the patient's measurement position to read the reading, and it can be operated with one hand to directly read the leg circumference reading at the same time. In addition, the degree of tightening of the leg muscles or tissues is consistent during each measurement, ensuring the accuracy of the measurement results. The operation is convenient, fast and accurate, reducing the workload of medical staff and improving their work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the patella midpoint fixing device of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the support structure of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the connecting buckle of the utility model;

[0024] Figure 5 It is a cross-sectional schematic diagram of the connecting buckle AA of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the support frame of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the measuring hard tube of the utility model;

[0027] Figure 8 It is a structural schematic diagram of the handheld measuring device of the utility model;

[0028] Fig. 9 It is a structural schematic diagram of the ruler box of the utility model;

[0029] Fig.10 It is a structural schematic diagram of the tape measure of the utility model;

[0030] Fig.11 It is a structural schematic diagram of the gear set of the utility model;

[0031] Fig.12 It is an enlarged schematic diagram of part B of the utility model;

[0032] Wherein: 1. Patella midpoint fixing device, 2. Handheld measuring device, 2-1. Ruler box, 2-2. Tape measure, 2-3. Upper box cover, 2-4. Lower box cover, 2-5. Reed, 2-6. Ruler tape, 2-7. Gear set, 2-8. Retraction button, 2-9. Anti-retraction device, 2-10. Spring, 3. Measuring hard tube, 3-1. A hard scale tube, 3-2. B hard scale tube, 4. Thigh circumference measuring tool, 5. Calf circumference measuring tool, 6. Wrapping structure, 6-1. Fastener, 7. Support structure, 7-1. Support frame, 7-2. Connecting buckle, 7-3. Connecting hole, 7-4. Retaining spring, 7-5. Slot, 7-6. Support rod, 8. Patella positioning hole. Implementation

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments. Example 1

[0034] refer to Figure 1-7 The utility model provides a leg circumference measuring tool, including a patella midpoint fixing device 1, a handheld measuring device 2, and a measuring hard tube 3. The handheld measuring device 1 includes a thigh circumference measuring tool 4 and a calf circumference measuring tool 5; the top ends of the thigh circumference measuring tool 4, the patella midpoint fixing device 1, and the calf circumference measuring tool 5 are connected to the measuring hard tube 3 in sequence.

[0035] like Figure 8-11 As shown, the handheld measuring device 2 includes a ruler box 2-1 and a measuring tape 2-2. The ruler box 2-1 includes an upper box cover and a lower box cover. The upper box cover 2-3 is engaged with the lower box cover 2-4. The ruler box 2-1 is provided with an arc-shaped recess. An outlet for the measuring tape 2-2 is opened on one side of the arc-shaped recess. The measuring tape 2-2 includes a spring 2-5 and a measuring tape 2-6. One end of the spring 2-5 is fixed on the ruler box 2-1 and can tighten the measuring tape 2-6. One end of the measuring tape 2-6 is provided with an anti-retraction device 2-9 and extends out of the outlet of the measuring tape 2-2 of the ruler box 2-1.

[0036] During each measurement, the tape 2-6 can be automatically retracted with one button, and the tension of the reed 2-5 is relatively fixed, thereby ensuring that the degree of tightening of the leg muscles or tissues during each measurement is consistent, thereby ensuring the accuracy of the measurement results.

[0037] Due to the mutual meshing of the gear set 2-7, when the retraction button 2-8 is not pressed, the ruler tape 2-6 does not retract, and there is no need to bend over to the patient's measuring position to read the reading.

[0038] like Figure 1As shown, the measuring hard tube 3 includes A hard scale tube 3-1 and B hard scale tube 3-2. A hard scale tube 3-1 and B hard scale tube 3-2 are telescopically adjustable, and the thigh circumference measuring tool 4 and the calf circumference measuring tool 5 are respectively located at the top of A hard scale tube 3-1 and B hard scale tube 3-2.

[0039] like Figure 2 As shown, the patella midpoint fixing device 1 includes a wrapping structure 6 provided with a patella positioning hole 8 and a supporting structure 7 for connecting the wrapping structure 6 and the measuring hard tube 3 .

[0040] The center point of the patella positioning hole 8 is aligned with the center point of the patella, and fasteners 6-1 are provided on both sides of the wrapping structure 6 symmetrically, so that the wrapping structure 6 can wrap the patient's knee accurately and firmly.

[0041] like Figure 3 As shown, the support structure 7 includes a support frame 7-1 and a connecting buckle 7-2 arranged at the top of the support frame 7-1, and the connecting buckle 7-2 is movably connected to the support frame 7-1. The connecting buckle 7-2 is symmetrically provided with connecting holes 7-3 on both sides, front and back. Fig.12 As shown, a retaining spring 7-4 is installed in the connecting hole 7-3. The support frame 7-1 includes at least two symmetrically arranged support rods 7-6, and the support rods 7-6 are retractable.

[0042] The A hard scale tube 3-1 and the B hard scale tube 3-2 are connected through the left and right connecting holes 7-3 respectively, and the support frame 7-1 is connected through the front and rear connecting holes 7-3. The connection points of the A hard scale tube 3-1, the B hard scale tube 3-2 and the support frame 7-1 and the connecting holes 7-3 are all provided with a card slot 7-5.

[0043] During measurement, the support rod 7-6 can be adjusted according to the height of the A hard scale tube 3-1 and the B hard scale tube 3-2, so that the height of the support rod 7-6 is always kept in the same straight line with the thigh circumference measuring tool 4 and the calf circumference measuring tool 5.

[0044] When in use, insert the A hard scale tube 3-1 and the B hard scale tube 3-2 into the left and right connecting holes 7-3 respectively, insert the support frame 7-1 into the front and rear connecting holes 7-3, and connect the thigh circumference measuring tool 4, the patella midpoint fixing device 1 and the calf circumference measuring tool 5 in the same straight line. Wrap the wrapping structure 6 around the knee. Adjust the A hard scale tube 3-1 and the B hard scale tube 3-2 to the set position as needed. Measure the leg circumference of the VET patient, slide the A hard scale tube 3-1 and the B hard scale tube 3-2 with the midpoint of the patella as the zero point, complete the measurement of 15cm above the patella and 10cm below the patella, so that the personnel can quickly find the longitudinal measurement position of the leg circumference; the measuring tool has a simple structure, a wide range of applications, and is convenient for storage and assembly; it can be operated with one hand, and the leg circumference readings can be directly read at the same time. The operation is convenient, fast and accurate, which reduces the workload of medical staff and improves the work efficiency of medical staff. Example 2

[0045] The structures of the leg circumference measuring tool of this embodiment and embodiment 1 are the same, the only difference is that, with the connecting buckle 7-2 as the center, the scale length of the A hard scale tube 3-1 is set to 15 cm, and the scale length of the B hard scale tube 3-2 is set to 10 cm. After the measuring tool is assembled, the leg circumference of the VET patient can be directly measured, and the measurement of 15 cm above the patella and 10 cm below the patella can be completed, so that the personnel can quickly find the longitudinal measurement position of the leg circumference. Example 3

[0046] The structure of the leg circumference measuring tool of this embodiment is the same as that of the embodiment 1 and the embodiment 2. The only difference is that two infrared sensors are respectively provided at the two ends of the bottom of the ruler box 2-1 to display the measured leg circumference data, which is faster and improves the accuracy of the measurement. The infrared sensor is a prior art. The working principle of the infrared sensor is similar to that of the object detection sensor. The sensor includes an infrared LED and an infrared photodiode, so by combining the two, an optical coupler can be formed. The infrared LED is a transmitter that emits infrared radiation. The LED looks similar to a standard LED, and the radiation generated thereby is invisible to the human eye. The infrared receiver mainly uses an infrared transmitter to detect radiation. These infrared receivers are provided in the form of photodiodes. The measuring tool can directly measure the leg circumference data of the patient, and can also measure the leg circumference data of the patient through the infrared sensor.

[0047] The specific application cases of this new type of leg circumference measurement tool are:

[0048] Before measurement, first put the thigh circumference measuring tool 4 and the calf circumference measuring tool 5 on the thigh and calf, align the center point of the patella positioning hole 8 with the center point of the patella, and after the wrapping structure 6 wraps the knee, fix it with the fastener 6-1. Then insert the support frame 7-1 into the front and rear connecting holes 7-3 of the connecting buckle 7-2, and insert the A hard scale tube 3-1 and the B hard scale tube 3-2 into the left and right connecting holes 7-3 of the connecting buckle 7-2. Finally, connect the thigh circumference measuring tool 4 to the top of the A hard scale tube 3-1, and connect the calf circumference measuring tool 5 to the top of the B hard scale tube 3-2. Set the length scales of the A hard scale tube 3-1 and the B hard scale tube 3-2 at a distance of 15cm above the patella and 10cm below the patella, respectively.

[0049] When measuring, ensure that the patient's legs are relaxed, and the thigh circumference measuring tool 4 and the calf circumference measuring tool 5 should be stably attached to the skin. Pull up the A hard scale tube 3-1 and the B hard scale tube 3-2 with one hand or both hands to pull out the tape 2-6 in the thigh circumference measuring tool 4 and the calf circumference measuring tool 5. The gear set 2-7 rotates and the reed 2-5 is tightened. When the tape 2-6 is stopped from being pulled, the gear set 2-7 is clamped and the tape 2-6 cannot be retracted. Insert the retraction button 2-8 into the clamping hole, and then press the retraction button 2-8 to compress the spring 2-10. Due to the retraction tension of the reed 2-5, the tape 2-6 can be retracted. When the tape 2-6 retracts to the position that fits the leg circumference, the tape 2-6 stops retracting. Release the retraction button 2-8, the position of the tape 2-6 is fixed, and the reading can be recorded.

[0050] When the measurement is finished, the above components can be disassembled, and then the anti-retraction device 2-9 can be removed, and the retraction button 2-8 can be continued to be pressed, and the tape 2-6 will continue to retract and rewind, thereby facilitating the positioning and rewinding of the tape 2-6.

[0051] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A leg circumference measuring tool, comprising a patella midpoint fixing device (1), a handheld measuring device (2), and a measuring hard tube (3), characterized in that: The handheld measuring device (2) comprises a thigh circumference measuring tool (4) and a calf circumference measuring tool (5); The top ends of the thigh circumference measuring tool (4), the patella midpoint fixing device (1) and the calf circumference measuring tool (5) are connected to the measuring hard tube (3) in sequence.

2. A leg circumference measuring tool according to claim 1, characterized in that: The patella midpoint fixing device (1) comprises a wrapping structure (6) provided with a patella positioning hole (8), and a supporting structure (7) for connecting the wrapping structure (6) and a measuring hard tube (3).

3. A leg circumference measuring tool according to claim 2, characterized in that: The support structure (7) comprises a support frame (7-1) and a connecting buckle (7-2) arranged at the top end of the support frame (7-1), and the connecting buckle (7-2) is movably connected to the support frame (7-1).

4. A leg circumference measuring tool according to claim 3, characterized in that: The connecting buckle (7-2) is symmetrically provided with connecting holes (7-3) for connecting the measuring hard tube (3) and the support frame (7-1) on both left and right sides and front and rear sides, and a retaining spring (7-4) is installed in the connecting hole (7-3).

5. A leg circumference measuring tool according to claim 4, characterized in that: The connection points between the measuring hard tube (3) and the support frame (7-1) and the connection hole (7-3) are all provided with a clamping groove (7-5).

6. A leg circumference measuring tool according to claim 3, characterized in that: The support frame (7-1) comprises at least two symmetrically arranged support rods (7-6), and the support rods are telescopic.

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