Telescopic arm circumference measuring device for breast cancer patient

Abstract

A telescopic arm circumference measuring device for a breast cancer patient comprises an arc-shaped outer bottom plate, the outer bottom plate is hollow, an inner bottom plate matched with the outer bottom plate in shape is slidably connected into the outer bottom plate, an opening facilitating drawing out of the inner bottom plate is formed in one end of the outer bottom plate, and corresponding graduated scales are arranged on the outer bottom plate and the inner bottom plate; an outer sliding rail is fixed to the top of one side of the outer bottom plate, an inner sliding rail is slidably connected into the outer sliding rail, a pulley device is slidably connected into the inner sliding rail, a fixing shaft is fixed to the pulley device, and strip-shaped holes are formed in the inner side of the inner sliding rail and the inner side of the outer sliding rail in the length direction. One end of the fixing shaft sequentially extends out of the strip-shaped hole in the inner sliding rail and the strip-shaped hole in the outer sliding rail and is fixedly provided with a soft tape device, and the outer sliding rail and the inner sliding rail are also provided with corresponding graduated scales. The device is simple in use method and convenient for the patient to use at home, so that the compliance of the patient in home monitoring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, in particular to a telescopic arm circumference measuring device for breast cancer patients. Background Art

[0002] Breast cancer is the leading malignant tumor globally affecting women. The incidence of new breast cancer cases has surpassed lung cancer to become the highest globally. Breast cancer-related lymphedema is a common complication following breast cancer treatment. Studies have shown that 5% to 50% of breast cancer patients experience lymphedema, which is difficult to reverse. Early detection and treatment are crucial, and self-monitoring is crucial for early detection.

[0003] Lymphedema is often difficult to detect visually in its early stages. Currently, the most commonly used and effective method is circumference measurement. This involves measuring the circumference of both limbs with a non-elastic tape measure: at the base of the thumb, the wrist crease, 10 cm above the wrist crease, the antecubital fossa, 10 cm above the antecubital fossa, and the top of the axilla. Alternatively, the circumference can be measured every 10 cm, starting at the wrist and following the ulna or radius of the arm. Each arm circumference is measured twice, and the average value is taken. Lymphedema is defined if any circumference exceeds the unaffected limb by more than 2 cm.

[0004] However, the methods of measuring circumference in clinical practice are not uniform, and different personnel select different measurement points. Most personnel first use a tape measure to locate the point to be measured and mark it, and then use the tape measure to circle the upper limb to record the data. This method is prone to deviations during operation, affecting work efficiency, and is complicated for patients to perform self-monitoring at home.

[0005] The patent publication number is CN216090485U, and the patent name is "Simple Measuring Ruler for Breast Cancer Lymphedema". The technical solution disclosed in the patent can perform measurements, but the operation process is cumbersome. Each time a part is measured, it needs to be marked and moved, making it difficult for patients to complete self-testing independently. Utility Model Content

[0006] The purpose of the utility model is to provide a retractable arm circumference measuring device for breast cancer patients, which is simple to use and convenient for patients to use at home, thereby improving the compliance of patients with home monitoring.

[0007] The technical solution adopted by this utility model is:

[0008] A telescopic arm circumference measuring device for breast cancer patients comprises an arc-shaped outer bottom plate, which is hollow inside, and an inner bottom plate adapted to its shape is slidably connected inside the outer bottom plate, one end of the outer bottom plate is provided with an opening for facilitating the withdrawal of the inner bottom plate, and corresponding scales are provided on the outer bottom plate and the inner bottom plate; an outer slide rail is fixed to the top of one side of the outer bottom plate, an inner slide rail is slidably connected inside the outer slide rail, a pulley device is slidably connected inside the inner slide rail, a fixed shaft is fixed to the pulley device, the inner sides of the inner and outer slide rails are provided with strip holes arranged along their length directions, one end of the fixed shaft extends to the strip holes on the inner and outer slide rails in sequence and is fixed with a soft tape measure device, and the outer and inner slide rails are also provided with corresponding scales.

[0009] The pulley device comprises two pulleys spaced apart from each other, a connecting shaft is fixed between the two pulleys, and the connecting shaft is fixedly connected to the fixed shaft.

[0010] The soft tape measure device comprises a soft tape measure shell fixed on a fixed shaft, a retractable soft tape measure wound in the soft tape measure shell, an opening is provided on the soft tape measure shell, and the free end of the soft tape measure extends out of the opening.

[0011] The cross sections of the outer bottom plate and the inner bottom plate are both half-circle ring structures, and the outer diameter of the inner bottom plate is smaller than the outer diameter of the outer bottom plate.

[0012] The outer slide rail and the inner slide rail are rectangular parallelepiped structures with a hollow interior, and one end of the outer slide rail close to the opening of the outer bottom plate is open.

[0013] The length of the outer slide rail is the same as the length of the outer bottom plate.

[0014] The top of the inner side of the outer bottom plate and the top of the inner side of the inner bottom plate are both provided with corresponding scales; the top of the outer slide rail and the top of the inner slide rail are both provided with corresponding scales.

[0015] End covers are detachably mounted on both ends of the inner slide rail; plug-in posts are fixed on the inner sides of the end covers, and plug-in holes that cooperate with the plug-in posts are provided at the ends of the inner slide rail.

[0016] The outer side of the outer bottom plate is threadedly connected to a first locking bolt, the inner end of which is tightened against the inner bottom plate; the outer side of the outer slide rail is threadedly connected to a second locking bolt, the inner end of which is tightened against the inner slide rail.

[0017] A pull-out column is fixed on one end of the inner bottom plate.

[0018] The utility model is simple to use and convenient for patients to use at home, thereby improving the compliance of patients with home monitoring, wherein the outer bottom plate is hollow inside, and the inner bottom plate adapted to its shape is slidably connected inside the outer bottom plate, and an opening is provided at one end of the outer bottom plate for facilitating the extraction of the inner bottom plate, so that the inner bottom plate can be pulled out from the outer bottom plate according to needs, and both the outer bottom plate and the inner bottom plate are arc-shaped, which are convenient for placing the patient's arm; an outer slide rail is fixed to the top of one side of the outer bottom plate, and an inner slide rail is slidably connected inside the outer slide rail, and the inner slide rail can slide left and right along the outer slide rail, and a pulley device is slidably connected inside the inner slide rail, and the pulley device can slide left and right along the inner slide rail Slide right, and the pulley device is connected to a soft tape measure device through a fixed axis to measure the circumference of the arm; corresponding scales are provided on the outer bottom plate and the inner bottom plate, and corresponding scales are also provided on the outer slide rail and the inner slide rail, which are convenient for observing and recording the moving positions of the inner bottom plate and the inner slide rail; when measuring, pull out the inner bottom plate and the inner slide rail to the appropriate position, stretch out the soft tape measure device from the soft tape measure device, straighten the arm, align the ulnar styloid process with the 0 scale line, place the arm on the outer bottom plate, and measure the result by moving the pulley device to the scale line corresponding to the part to be measured to complete the entire measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model (1);

[0020] Figure 2 This is a schematic diagram of the structure of the utility model (II);

[0021] Figure 3 It is a schematic diagram of the partial structure of the outer slide rail and the inner slide rail;

[0022] Figure 4 It is a structural diagram of the outer slide rail, inner slide rail and pulley device;

[0023] Figure 5 is a schematic diagram of the structure of the end cover (1);

[0024] Figure 6 Schematic diagram of the structure of the end cover (2). DETAILED DESCRIPTION

[0025] like Figures 1-6As shown, a retractable arm circumference measuring device for breast cancer patients includes an arc-shaped outer bottom plate 1, which is hollow inside. An inner bottom plate 2 that adapts to its shape is slidably connected to the outer bottom plate 1. An opening is provided at one end of the outer bottom plate 1 for facilitating the withdrawal of the inner bottom plate 2. Corresponding scales 7 are provided on the outer bottom plate 1 and the inner bottom plate 2 for facilitating observation and recording of the position of the inner bottom plate 2. The outer bottom plate 1 and the inner bottom plate 2 are made of TPU material with good elasticity. An outer slide rail 6 is fixed to the top of one side of the outer bottom plate 1. An inner slide rail 5 is slidably connected to the outer slide rail 6. The inner slide rail 5 can slide left and right along the outer slide rail 6. The inner slide is connected to a pulley device 4, which can slide left and right along the inner slide rail 5. A fixed shaft 10 is fixed on the pulley device 4. The inner sides of the inner slide rail 5 and the outer slide rail 6 are provided with strip holes 20 arranged along their length directions. One end of the fixed shaft 10 extends to the outside of the strip holes 20 on the inner slide rail 5 and the strip holes 20 on the outer slide rail 6 in sequence and is fixed with a soft tape measure device 3. The soft tape measure device 3 is connected to the pulley device 4 through the fixed shaft 10 and can move left and right with the sliding of the pulley device 4. Corresponding scales 7 are also provided on the outer slide rail 6 and the inner slide rail 5 to facilitate observation and recording of the moving position of the inner slide rail 5.

[0026] The pulley device 4 includes two pulleys 9 spaced apart from each other. The pulleys 9 can slide left and right along the inner wall of the inner slide rail 5. A connecting shaft 8 is fixed between the two pulleys 9 to serve as a connection. The connecting shaft 8 is fixedly connected to the fixed shaft 10.

[0027] When both ends of the strip hole 20 are closed, the fixed shaft 10 and the connecting shaft 8 adopt a detachable connection method, such as a threaded connection, which facilitates the detachable fixation of the fixed shaft 10 on the connecting shaft 8. Both ends of the strip hole 20 are closed, which also plays a limiting role to prevent the fixed shaft 10 from falling out of the strip hole 20.

[0028] The soft tape measure device 3 includes a soft tape measure shell fixed on the fixed shaft 10, and a retractable soft tape measure 19 is wound inside the soft tape measure shell. An opening is provided on the soft tape measure shell, and the free end of the soft tape measure 19 extends out of the opening to facilitate pulling out the soft tape measure 19. The soft tape measure device 3 preferably uses an automatically retractable soft tape measure 19 to facilitate the retraction of the soft tape measure 19.

[0029] The cross-sections of the outer bottom plate 1 and the inner bottom plate 2 are both half-circular ring structures. The outer diameter of the inner bottom plate 2 is smaller than that of the outer bottom plate 1 , and the inner bottom plate 2 can slide left and right along the inner cavity of the outer bottom plate 1 .

[0030] The outer slide rail 6 and the inner slide rail 5 are rectangular parallelepiped structures with hollow interiors. One end of the outer slide rail 6 close to the opening of the outer bottom plate 1 is open to facilitate the extraction of the inner slide rail 5.

[0031] The length of the outer slide rail 6 is the same as that of the outer bottom plate 1 .

[0032] The top of the inner side of the outer bottom plate 1 and the top of the inner side of the inner bottom plate 2 are both provided with corresponding scales 7; the top of the outer slide rail 6 and the top of the inner slide rail 5 are both provided with corresponding scales 7 for easy observation.

[0033] End covers 15 are detachably mounted on both ends of the inner slide rail 5 to prevent the pulley device 4 from sliding out; a plug-in column 14 is fixed on the inner side of the end cover 15, and a plug-in hole that cooperates with the plug-in column 14 is provided at the end of the inner slide rail 5 to facilitate installation and disassembly.

[0034] The outer side of the outer bottom plate 1 is threadedly connected to a first locking bolt 17, and the inner end of the first locking bolt 17 is tightened against the inner bottom plate 2. When the inner bottom plate 2 is moved into place, it is used to lock the position of the inner bottom plate 2; the outer side of the outer slide rail 6 is threadedly connected to a second locking bolt 16, and the inner end of the second locking bolt 16 is tightened against the inner slide rail 5. When the inner slide rail 5 is moved into place, it is used to lock the position of the inner slide rail 5.

[0035] A pull-out post 18 is fixed to one end of the inner bottom plate 2 , so that the pull-out post 18 can be easily grasped and pulled out.

[0036] The utility model is simple to use and convenient for patients to use at home, thereby improving the compliance of patients with home monitoring. Before measurement, the inner bottom plate 2 is pulled out from the outer bottom plate 1, and the inner slide rail 5 is pulled out from the outer slide rail 6 as needed. They can be pulled out to the limit position. When measuring, the patient's arm is placed on the outer bottom plate 1 and the inner bottom plate 2, the pulley device 4 is moved to the position to be measured, the soft tape device 3 moves to the corresponding position with the pulley device 4, and the soft ruler is stretched out from the soft tape device 3. The measurer straightens the arm, aligns the ulnar styloid process with the 0 scale line position, and measures the result by moving the pulley device 4 one by one to the scale line corresponding to the part to be measured to complete all measurements; when not in use, the inner bottom plate 2 and the inner slide rail 5 can be pushed back to the initial position for easy storage. Compared with the simple soft ruler measurement commonly used in clinical practice, the positioning is more accurate and faster, reduces measurement deviation, and improves the work efficiency of nurses.

[0037] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A retractable arm circumference measuring device for breast cancer patients, comprising an arc-shaped outer bottom plate, characterized in that: The outer bottom plate is hollow inside, and an inner bottom plate that matches its shape is slidably connected inside the outer bottom plate. An opening is provided at one end of the outer bottom plate for easy withdrawal of the inner bottom plate, and corresponding scales are provided on the outer bottom plate and the inner bottom plate; an outer slide rail is fixed to the top of one side of the outer bottom plate, and an inner slide rail is slidably connected inside the outer slide rail, and a pulley device is slidably connected inside the inner slide rail, and a fixed shaft is fixed on the pulley device. The inner sides of the inner and outer slide rails are provided with strip holes arranged along their length directions, and one end of the fixed shaft extends to the strip holes on the inner and outer slide rails in sequence and is fixed with a soft tape measure device, and corresponding scales are also provided on the outer and inner slide rails.

2. The retractable arm circumference measuring device for breast cancer patients according to claim 1, characterized in that: The pulley device comprises two pulleys spaced apart from each other, a connecting shaft is fixed between the two pulleys, and the connecting shaft is fixedly connected to the fixed shaft.

3. The retractable arm circumference measuring device for breast cancer patients according to claim 2, characterized in that: The soft tape measure device comprises a soft tape measure shell fixed on a fixed shaft, a retractable soft tape measure wound in the soft tape measure shell, an opening is provided on the soft tape measure shell, and the free end of the soft tape measure extends out of the opening.

4. The retractable arm circumference measuring device for breast cancer patients according to claim 1, wherein: The cross sections of the outer bottom plate and the inner bottom plate are both half-circle ring structures, and the outer diameter of the inner bottom plate is smaller than the outer diameter of the outer bottom plate.

5. The retractable arm circumference measuring device for breast cancer patients according to claim 1, characterized in that: The outer slide rail and the inner slide rail are rectangular parallelepiped structures with a hollow interior, and one end of the outer slide rail close to the opening of the outer bottom plate is open.

6. The retractable arm circumference measuring device for breast cancer patients according to claim 1, characterized in that: The length of the outer slide rail is the same as the length of the outer bottom plate.

7. The retractable arm circumference measuring device for breast cancer patients according to claim 1, characterized in that: The top of the inner side of the outer bottom plate and the top of the inner side of the inner bottom plate are both provided with corresponding scales; the top of the outer slide rail and the top of the inner slide rail are both provided with corresponding scales.

8. The retractable arm circumference measuring device for breast cancer patients according to claim 1, wherein: End covers are detachably mounted on both ends of the inner slide rail; plug-in posts are fixed on the inner sides of the end covers, and plug-in holes that cooperate with the plug-in posts are provided at the ends of the inner slide rail.

9. The retractable arm circumference measuring device for breast cancer patients according to claim 1, characterized in that: The outer side of the outer bottom plate is threadedly connected to a first locking bolt, the inner end of which is tightened against the inner bottom plate; the outer side of the outer slide rail is threadedly connected to a second locking bolt, the inner end of which is tightened against the inner slide rail.

10. The retractable arm circumference measuring device for breast cancer patients according to claim 1, characterized in that: A pull-out column is fixed on one end of the inner bottom plate.

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