Leg circumference measuring device

Abstract

The utility model discloses a leg circumference measuring device which comprises an upper leg circumference measuring ring ruler, a lower leg circumference measuring ring ruler and two fixing base plates, a patella upper clamping plate is fixed to the upper side between the two fixing base plates, a patella lower clamping plate is connected to the lower side between the two fixing base plates in an up-down sliding mode, and a patella fixing soft strip is connected to the middle between the two fixing base plates in a sliding mode. The upper side of the patella upper clamping plate is connected with an upper leg circumference measuring ring ruler through an upper flexible rule, and the patella lower clamping plate is connected with a lower leg circumference measuring ring ruler through a lower flexible rule; the patella upper clamping plate is fixed on the fixing base plate, and the fixing base plate is connected with the patella lower clamping plate in a sliding manner, so that the patella lower clamping plate and the patella fixing soft strip can be adjusted according to different sizes of patella of a patient, and the measurement precision is improved; in addition, by arranging the upper flexible ruler and the lower flexible ruler, variable fitting can be carried out according to the leg shape of the patient, the legs of the patient can be tightly surrounded, and the measurement precision is improved.

Description

Technical Field

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

[0002] Deep venous thrombosis (DVT) refers to the formation of blood clots in the vein lumen due to various reasons. The typical clinical manifestation of deep venous thrombosis is often swelling and pain in one lower limb (most common in the left lower limb). However, there may be no obvious symptoms in the early stage of thrombosis, which is one of the reasons why venous thrombosis is easily overlooked.

[0003] When a patient has venous thrombosis in the lower limbs, it is necessary to measure the thigh circumference above the patella of the affected limb (generally 15 cm above the upper edge of the patella) and the calf circumference below the patella (generally 10 cm above the lower edge of the patella). For the convenience of measurement, a leg circumference measuring device is required during the measurement process.

[0004] Regarding the leg circumference measuring device, in the prior art, after searching, the utility model patent with Chinese patent announcement number CN218105890U discloses a leg circumference measuring device, such as Figure 1 As shown, it mainly includes a patella fixing shell plate a, the upper part of the patella fixing shell plate a is connected to the upper leg circumference measuring ring ruler c through a long connecting rod b, and the lower part of the patella fixing shell plate a is connected to the lower leg circumference measuring ring ruler e through a lower connecting rod d. When measuring, the patella fixing plate is clamped on the patient's patella, and then the upper leg circumference measuring ring ruler is used to measure the thigh circumference, and the lower leg circumference measuring ring ruler is used to measure the calf circumference.

[0005] In the actual implementation process of the leg circumference measuring device similar to the above technical solution in the prior art, it was found that there are the following areas for improvement: First, the patellar fixation plate cannot be adjusted according to the size of the patient's patella, so the patellar fixation plate is easily misaligned when fixed on the patella, resulting in a large measurement error; Second, the long connecting rod and the short connecting rod cannot be deformed, so they cannot be attached to the leg according to the leg shape. When the upper leg circumference measuring ring ruler and the lower leg circumference measuring ring ruler surround the leg for measurement, it is easy to cause a large gap between the upper leg circumference measuring ring ruler or the lower leg circumference measuring ring ruler and the leg, thereby affecting the measurement accuracy. Utility Model Content

[0006] In view of the deficiencies and defects in the prior art, the purpose of the utility model is to provide a leg circumference measuring device, which solves the problem that the patella fixing plate of the leg circumference measuring device in the prior art cannot be adjusted according to the different sizes of the patient's patella, thus easily causing large measurement errors; and the long connecting rod and the short connecting rod are not deformable, so they cannot be attached to the leg according to the leg shape, easily causing a large gap between the upper leg circumference measuring circle ruler or the lower leg circumference measuring circle ruler and the leg, thereby affecting the measurement accuracy.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions: a leg circumference measuring device, including an upper leg circumference measuring ring ruler and a lower leg circumference measuring ring ruler, and also including two vertical fixed base plates, an upper patella clamping plate is fixed on the upper side between the two fixed base plates, a lower patella clamping plate is slidably connected to the lower side between the two fixed base plates, a patella fixing soft strip is slidably provided in the middle part between the two fixed base plates, an upper soft ruler with adjustable length is connected to the upper side of the upper patella clamping plate, and the other end of the upper soft ruler is connected to the upper leg circumference measuring ring ruler, a lower soft ruler with adjustable length is connected to the lower side of the lower patella clamping plate, and the other end of the lower soft ruler is connected to the lower leg circumference measuring ring ruler.

[0008] As a further improvement of the utility model, a slide groove is provided on the fixed base plate, and a slider slidably connected to the slide groove is provided on the subpatellar clamping plate. The subpatellar clamping plate is slidably connected to the fixed base plate through the slider and is fastened to the fixed base plate by a locking bolt.

[0009] As a further improvement of the utility model, a sliding sleeve is slidably connected to the fixed base plate, a buckle is provided on the inner side of the sliding sleeve, and both ends of the patella fixing soft strip pass through the buckle and are connected by a first buckle.

[0010] As a further improvement of the utility model, the upper side of the patellar upper clamping plate and the lower side of the patellar lower clamping plate are both connected with a second buckle, and the upper and lower soft rulers can be adjusted and buckled on the second buckle.

[0011] As a further improvement of the utility model, a scale is provided on the fixed base plate.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. Fix the upper patella clamping plate on the fixed base plate, slide the lower patella clamping plate on the fixed base plate, and clamp the upper patella clamping plate on the upper edge of the patella during measurement, then slide the lower patella clamping plate, and clamp the lower patella clamping plate at the lower edge of the patella, then slide the patella fixing strip so that the patella fixing strip is in the middle position of the patella, and fix the patella fixing strip on the patient's patella. Therefore, during fixation and positioning, the lower patella clamping plate and the patella fixing strip can be adjusted according to the size of the patient's patella to perform corresponding positioning and fixing, and the fixation and fitting are more precise, thereby improving the accuracy of the measurement position of the upper leg circumference measuring circle ruler and the lower leg circumference measuring circle ruler, thereby improving the measurement accuracy.

[0014] In addition, by connecting the upper leg circumference measuring ring ruler to the upper patella clamping plate through the upper soft ruler, and connecting the lower leg circumference measuring ring ruler to the lower patella clamping plate through the lower soft ruler, the upper soft ruler and the lower soft ruler can be changed to fit according to the patient's leg shape. Then, the upper leg circumference measuring ring ruler and the lower leg circumference measuring ring ruler can tightly circle the patient's legs when measuring the leg circumference, greatly improving the measurement accuracy.

[0015] In addition, the length of the upper and lower tape measures can be adjusted, and the length between the upper leg circumference measuring circle and the upper patellar clamp can be adjusted as needed, and the length between the lower leg circumference measuring circle and the lower patellar clamp can be adjusted, so that the leg circumference at different lengths from the patella can be measured as needed.

[0016] 2. The sliding sleeve is slidably connected to the fixed base plate, so that the patella fixing soft strip can be slid up and down according to the different patellas.

[0017] 3. A second buckle is connected to the upper side of the patellar upper clamping plate and the lower side of the patellar lower clamping plate, and the upper and lower soft rulers can be adjusted and buckled on the second buckle. The extension length of the upper and lower soft rulers can be adjusted through the second buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of the prior art;

[0020] Figure 2 It is a structural schematic diagram of the utility model;

[0021] Figure 3 for Figure 2 A top view of

[0022] Figure 4 for Figure 2 A magnified view at point A;

[0023] Figure 5 for Figure 2Enlarged view at B;

[0024] In the figure: 1. upper leg circumference measuring circle ruler; 2. lower leg circumference measuring circle ruler; 3. fixed base plate; 4. upper patella clamping plate; 5. lower patella clamping plate; 6. patella fixing soft strip; 7. upper soft ruler; 8. lower soft ruler; 9. slide groove; 10. sliding sleeve; 11. buckle; 12. first buckle; 13. second buckle; 14. scale; 15. locking bolt. DETAILED DESCRIPTION

[0025] The following is combined with Figure 2-5 The utility model is further described in detail. For a clearer illustration, only the structure related to the utility model is shown in the figure.

[0026] For the convenience of description, the coordinate system is defined as Figure 1 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0027] The utility model discloses a leg circumference measuring device. Figure 2 and Figure 3 A leg circumference measuring device includes an upper leg circumference measuring ring ruler 1 and a lower leg circumference measuring ring ruler 2, and also includes two vertical fixed base plates 3, on which a scale 14 is provided, an upper patellar clamping plate 4 is fixed on the upper side between the two fixed base plates 3, and a lower patellar clamping plate 5 is slidably connected to the lower side between the two fixed base plates 3. Specifically, Figure 2 and Figure 5 As shown, a slide groove 9 is provided on the fixed base plate 3, and a slider slidably connected to the slide groove 9 is provided on the subpatellar retaining plate 5. The subpatellar retaining plate 5 is slidably connected to the fixed base plate 3 through the slider and is fastened to the fixed base plate 3 by a locking bolt 15.

[0028] In addition, if Figure 2 and Figure 4 As shown, a patella fixing strip 6 is provided in the middle between the two fixed base plates 3 for sliding up and down. A sliding sleeve 10 is slidably connected to the fixed base plate 3. A buckle 11 is provided on the inner side of the sliding sleeve 10. Both ends of the patella fixing strip 6 pass through the buckle 11 and are connected by a first buckle 12, so that the patella fixing strip 6 can be slid up and down according to the different patellas.

[0029] like Figure 2As shown, the upper side of the patellar upper clamping plate 4 is connected with an upper soft ruler 7 of adjustable length, the other end of the upper soft ruler 7 is connected with the upper leg circumference measuring circle ruler 1, the lower side of the patellar lower clamping plate 5 is connected with a lower soft ruler 8 of adjustable length, and the other end of the lower soft ruler 8 is connected with the lower leg circumference measuring circle ruler 2. Specifically, the upper side of the patellar upper clamping plate 4 and the lower side of the patellar lower clamping plate 5 are both connected with a second buckle 13, and the upper soft ruler 7 and the lower soft ruler 8 can be adjustably buckled on the second buckle 13. Through the second buckle 13, the extension length of the upper soft ruler 7 and the lower soft ruler 8 can be adjusted; the length between the upper leg circumference measuring circle ruler 1 and the patellar upper clamping plate 4 can be adjusted as needed, and the length between the lower leg circumference measuring circle ruler 2 and the patellar lower clamping plate 5 can be adjusted, so that the leg circumference at different lengths from the patella can be measured as needed.

[0030] The utility model fixes an upper patella clamping plate 4 on a fixed base plate 3, and a lower patella clamping plate 5 is slidably connected to the fixed base plate 3. When measuring, the upper patella clamping plate 4 is clamped on the upper edge of the patella, and then the lower patella clamping plate 5 is slid, and the lower patella clamping plate 5 is clamped at the lower edge of the patella, and then the patella fixing soft strip 6 is slid, so that the patella fixing soft strip 6 is located in the middle position of the patella, and the patella fixing soft strip 6 is fixed on the patient's patella. Therefore, when fixing and positioning, the lower patella clamping plate 5 and the patella fixing soft strip 6 can be adjusted according to the size of the patient's patella to perform corresponding positioning and fixing, and the fixing and fitting are more accurate, thereby improving the accuracy of the measurement position of the upper leg circumference measuring circle ruler 1 and the lower leg circumference measuring circle ruler 2, thereby improving the measurement accuracy.

[0031] In addition, by connecting the upper leg circumference measuring ring ruler 1 to the upper patellar clamping plate 4 through the upper soft ruler 7, and connecting the lower leg circumference measuring ring ruler 2 to the lower patellar clamping plate 5 through the lower soft ruler 8, the upper soft ruler 7 and the lower soft ruler 8 can be changed to fit according to the patient's leg shape. Then, the upper leg circumference measuring ring ruler 1 and the lower leg circumference measuring ring ruler 2 can tightly circle the patient's legs when measuring the leg circumference, thereby greatly improving the measurement accuracy.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. It should be understood that the specific implementation methods described herein are only used to understand the present utility model, and are not used to limit the present utility model. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present utility model.

Claims

1. A leg circumference measuring device, comprising an upper leg circumference measuring ring ruler and a lower leg circumference measuring ring ruler, characterized in that: It also includes two vertical fixed base plates, an upper patella clamping plate is fixed on the upper side between the two fixed base plates, a lower patella clamping plate is slidably connected to the lower side between the two fixed base plates, a patella fixing soft strip is slidably provided in the middle part between the two fixed base plates, an upper soft ruler with adjustable length is connected to the upper side of the upper patella clamping plate, and the other end of the upper soft ruler is connected to the upper leg circumference measuring circle ruler, a lower soft ruler with adjustable length is connected to the lower side of the lower patella clamping plate, and the other end of the lower soft ruler is connected to the lower leg circumference measuring circle ruler.

2. A leg circumference measuring device according to claim 1, characterized in that: The fixed base plate is provided with a slide groove, the subpatellar clamping plate is provided with a slider slidably connected to the slide groove, the subpatellar clamping plate is slidably connected to the fixed base plate through the slider, and is fastened to the fixed base plate through a locking bolt.

3. A leg circumference measuring device according to claim 1, characterized in that: A sliding sleeve is slidably connected to the fixed base plate, a buckle ring is arranged on the inner side of the sliding sleeve, and two ends of the patella fixing soft strip pass through the buckle ring and are connected by a first buckle.

4. A leg circumference measuring device according to claim 1, characterized in that: The upper side of the patellar upper clamping plate and the lower side of the patellar lower clamping plate are both connected with a second buckle, and the upper and lower soft rulers can be adjusted and buckled on the second buckle.

5. A leg circumference measuring device according to any one of claims 1 to 4, characterized in that: A scale is arranged on the fixed base plate.

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