Lower limb vein circumference measuring device

Abstract

The utility model relates to a lower limb vein circumference measuring device, and belongs to a medical detection instrument. According to the technical scheme, the device comprises a main measuring plate, a flexible ruler, a centering track, a centering sliding block and a centering triangular plate. Scales are arranged on the main measuring plate, the two groups of flexible rulers are arranged at the two ends of the main measuring plate, and the centering track is arranged in the middle of the main measuring plate and is perpendicular to the length direction of the main measuring plate; a centering sliding block is arranged on the centering track, a centering triangular plate is arranged on the centering sliding block and is an isosceles triangle, identical and symmetrical scales are arranged on the two equiangular edges, and the vertex angle of the centering triangle is located on the centering track. The centering speed is high, rapid centering can be achieved, and inaccuracy of the measurement position is avoided; the structure is suitable for single-person operation, and is more friendly to patients compared with a marking pen.

Description

Technical Field

[0001] The utility model relates to a device for measuring the circumference of lower limb veins, belonging to a medical detection instrument. Background Art

[0002] Deep vein thrombosis (DVT) of the lower extremities is a common peripheral vascular disease in clinical practice. Abnormal coagulation of blood in the deep veins leads to obstructed blood return, resulting in swelling, high skin temperature, pain, and functional impairment of the limbs. Once the thrombus breaks off, complications such as pulmonary embolism (PE) may occur. Common clinical examination methods include venography, blood tests, and color Doppler ultrasound, but there is still room for improvement in the measurement of lower extremity circumference. Due to the lack of understanding of measurement standards by nursing staff, inconsistent measurement sites, incorrect measurement methods, markings, and body positioning, there is a certain degree of measurement error and low accuracy. Therefore, standardized measurement of lower extremity circumference is particularly important.

[0003] Observing the signs of deep vein thrombosis in the lower limbs, as a major indicator for disease monitoring, can assess the severity of the disease and provide a basis for diagnosis; according to changes in leg circumference, the treatment plan can be adjusted at any time; and it can provide good guidance for the later selection of the size and pressure of elastic stockings.

[0004] Currently, the upper and lower edges of the patella are manually marked, the midpoint of the patella is measured and marked; 15 cm above the midpoint of the patella and 10 cm below the midpoint of the patella are marked; the upper edge of the tape measure is placed 15 cm above the midpoint of the patella, the limb circumference is measured and the lower edge of the tape measure is marked; the lower edge of the tape measure is placed 10 cm below the midpoint of the patella, the limb circumference is measured and the upper edge of the tape measure is marked.

[0005] This type of measurement uses a tape measure, and the key marks of the upper and lower edges of the patella need to be written on the patient's leg with a marker, which is not patient-friendly.

[0006] The current measuring instruments have a complex structure and are still not convenient for centering and finding. Summary of the Invention

[0007] The invention relates to a device for measuring the circumference of lower limb veins, which solves the problem of standardized measurement of the circumference of lower limbs.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] The utility model is a device for measuring the circumference of lower limb veins.

[0010] It includes a main measuring plate, a flexible ruler, a centering rail, a centering slide and a centering triangle;

[0011] The main measuring plate is provided with a scale, and the flexible ruler is provided in two parts at both ends of the main measuring plate. The centering track is provided in the middle of the main measuring plate and is perpendicular to the length direction of the main measuring plate.

[0012] A centering slider is provided on the centering track, and a centering triangle is provided on the centering slider. The centering triangle is an isosceles triangle, and the two equal angle sides are provided with the same and symmetrical scales. The vertex of the centering triangle is on the centering track.

[0013] According to the lower limb vein circumference measuring device, the flexible ruler is set at 15 cm and 10 cm away from the centering track on the scales on the main measuring plate on both sides of the centering track. The outlet of the flexible ruler is on the lower side of the main measuring plate. The main measuring plate is a transparent plate, and the scale where the 0 scale end of the flexible ruler intersects with the middle degree is observed through the light-transmitting main measuring plate.

[0014] According to the lower limb vein circumference measuring device, the centering triangle plate is a transparent plate, the middle position of the lower side is fixed on the centering slider, and a limit setting is embedded between the bottom of the centering slider and the centering track.

[0015] According to the lower limb vein circumference measuring device, the main measuring plate is divided into two parts, left and right, from the middle, and a hinge is provided between the left and right parts. The hinge is perpendicular to the length direction of the main measuring plate, and the track is provided on the hinge or at the edge of the intersection of the left and right parts.

[0016] According to the lower limb vein circumference measuring device, the left and right parts of the main measuring plate have space at the hinged position for arranging the centering track, and the centering track and the hinge shaft are an integrated structure.

[0017] The advantages of the present invention are:

[0018] The centering speed is fast, which can achieve rapid centering and avoid inaccurate measurement position;

[0019] The structure is suitable for single-person operation and is more patient-friendly than using a marker pen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural view of the utility model.

[0021] Figure 2 It is a side view of the utility model.

[0022] Figure 3 It is a usage diagram of the present utility model.

[0023] Reference numerals: 1 main measuring plate, 11 length scale, 12 hinge shaft, 2 flexible ruler, 3 centering rail, 4 centering slider, 5 centering triangle plate, 51 centering scale, 6 knee patella, 7 leg. DETAILED DESCRIPTION

[0024] The following is a further explanation of the specific structure of this usage confidence:

[0025] The utility model of the lower limb vein circumference measuring device is used for positioning and measuring the circumference of the lower limb veins. Figure 1 As shown, it includes a main measuring plate 1, a flexible ruler 2, a centering rail 3, a centering slider 4 and a centering triangle 5.

[0026] The main measuring plate 1 is provided with a length scale 11 , and the flexible ruler 2 is divided into two groups and arranged at both ends of the main measuring plate 1 . The centering track 3 is arranged in the middle of the main measuring plate 1 and perpendicular to the length direction of the main measuring plate 1 .

[0027] A centering slider 4 is provided on the centering track 3 , and a centering triangle plate 5 is provided on the centering slider 4 . The centering triangle plate 5 is an isosceles triangle, and the two equal angle sides are provided with identical and symmetrical centering scales 51 . The vertex angle of the centering triangle is on the centering track 3 .

[0028] The centering triangle is positioned in the middle by aligning the two isosceles sides of the centering triangle with the upper and lower edges of the patella at the same scale. The flexible rulers at both ends of the main measuring plate 1 are used to measure the circumference of the leg and register the measured value to complete a measurement.

[0029] Specifically, such as Figure 1 As shown, the length scales 11 on the main measuring plate 1 on both sides of the centering track 3 are set at 15 cm and 10 cm away from the centering track 3. The outlet of the flexible ruler 2 is located on the lower side of the main measuring plate 1. The main measuring plate 1 is a transparent plate. The scale of the flexible ruler 2 where the 0 scale end and the middle degree intersect is observed through the main measuring plate 1.

[0030] The transparent main measuring plate allows for easy viewing of the measured value. The flexible ruler is retractable, allowing users to pull it out during use and retract it afterward using a spring mechanism. The structure is identical to existing steel rulers.

[0031] To facilitate centering, the centering triangle 5 is a transparent plate, the middle position of the lower side of which is fixed to the centering slider 4. A limiter is embedded between the lower side of the centering slider 4 and the centering track 3. The centering track and the centering slider need to be in a structured manner, and the embedded structure can maintain the stability of the two structures.

[0032] To accommodate the curved structure of the knee, the device's main measurement plate 1 is divided into two sections, with a hinge 12 positioned between them. This hinge 12 runs perpendicular to the length of the main measurement plate 1. The track is located on hinge 12 or at the intersection of the two sections. Space is left at the hinged joint between the left and right sections of the main measurement plate 1 for the centering track 3, which is integral with the hinge 12.

[0033] When using, place the middle of the main measuring plate against the knee, and move both sides down to the thigh and calf, keeping the flexible ruler as close to the leg as possible to improve measurement accuracy.

[0034] The main measuring plate hinges at the bottom, leaving space above for the centering rail. The left and right sections of the main measuring plate feature circular holes, staggered to accommodate pins. The pins connect to the centering rails at their ends. When the left and right sections of the main measuring plate tilt downward, the centering triangles must be kept parallel to the legs to prevent them from tilting to one side.

Claims

1. A device for measuring the circumference of lower limb veins, characterized in that: It includes a main measuring plate (1), a flexible ruler (2), a centering track (3), a centering slider (4) and a centering triangle plate (5); A length scale (11) is provided on the main measuring plate (1), and the flexible ruler (2) is provided in two groups at both ends of the main measuring plate (1). The centering track (3) is provided in the middle of the main measuring plate (1) and is perpendicular to the length direction of the main measuring plate (1); A centering slide block (4) is provided on the centering track (3), and a centering triangle plate (5) is provided on the centering slide block (4). The centering triangle plate (5) is an isosceles triangle, and two equal angle sides are provided with identical and symmetrical centering scales (51). The vertex of the centering triangle is located on the centering track (3).

2. The lower limb vein circumference measuring device according to claim 1, characterized in that: The length scales (11) on the main measuring plates (1) on both sides of the centering track (3) are provided with the flexible ruler (2) at 15 cm and 10 cm from the centering track (3). The outlet of the flexible ruler (2) is located on the lower side of the main measuring plate (1). The main measuring plate (1) is a transparent plate. The scale of the flexible ruler (2) at the intersection of the 0 scale end and the middle degree is observed through the light-transmitting main measuring plate (1).

3. The lower limb vein circumference measuring device according to claim 1, characterized in that: The centering triangle plate (5) is a transparent plate, the middle position of the lower side of which is fixed on the centering slider (4), and a limit setting is embedded between the lower side of the centering slider (4) and the centering track (3).

4. The lower limb vein circumference measuring device according to claim 1, characterized in that: The main measuring plate (1) is divided into two parts, left and right, from the middle. A hinge shaft (12) is provided between the left and right parts. The hinge shaft (12) is perpendicular to the length direction of the main measuring plate (1). The track is provided on the hinge shaft (12) or at the edge of the intersection of the left and right parts.

5. The lower limb vein circumference measuring device according to claim 4, characterized in that: The left and right parts of the main measuring plate (1) have space at the hinged position for arranging the centering track (3), and the centering track (3) and the hinge shaft (12) are an integrated structure.

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