Leg circumference measuring scale for venous thrombosis of lower limbs

Abstract

The utility model discloses a lower limb venous thrombosis leg circumference measuring scale, which relates to the field of lower limb venous thrombosis and comprises a first flexible rule, the side surface of the first flexible rule is connected with a second flexible rule, the end parts of the first flexible rule and the second flexible rule are respectively connected with a winding mechanism, and the surfaces of a second rotating roller and a first rotating roller are respectively connected with the first flexible rule in a winding manner. A first gear and a second gear are rotationally arranged in the second rotating groove, and the second gear and the first gear are connected in an engaged mode. According to the lower limb venous thrombosis leg circumference measuring ruler, after measurement is completed, the elastic rolling strip can automatically reset the first flexible ruler and the second flexible ruler through the elasticity of the elastic rolling strip, the leg circumference measuring efficiency of the measuring ruler is improved, a push block is pushed to drive a rotating rod to rotate in a second rotating groove, and therefore the rotating rod is rotated out of the side face of a ratchet wheel; automatic curling of the measuring ruler is achieved, the second flexible ruler can be curled by pushing the push block, the second flexible ruler is not too loose when curled, and more accurate reading can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lower limb venous thrombosis, in particular to a leg circumference measuring ruler for lower limb venous thrombosis. Background Art

[0002] Lower limb venous thrombosis is a thrombosis of the leg veins, which refers to blood clots formed in the veins. It is usually formed by the aggregation of platelets and other components in the blood, resulting in obstructed blood flow. The most common location of venous thrombosis is the legs. The impact of the thrombosis will cause leg swelling. The leg circumference can be measured by a measuring tape, which helps doctors assess the possibility of edema and thrombosis.

[0003] The current leg circumference measuring ruler for lower extremity venous thrombosis still has certain shortcomings, such as inaccurate measurement:

[0004] To overcome the problem of inaccurate measurement with a measuring ruler, a prior art Chinese patent (publication number: CN218419853U) discloses a leg circumference measuring ruler for lower extremity venous thrombosis. The ruler is fixed to the patient's leg by placing a fixed sleeve structure around the patient's patella, thereby preventing the problem of inaccurate measurement caused by the patient's leg shaking.

[0005] However, a leg circumference measuring ruler for lower limb venous thrombosis currently in use still has certain shortcomings. The above document avoids the problem of inaccurate measurement caused by the shaking of the patient's legs. However, the measuring ruler is more troublesome to roll up, and manual rolling up will take time, which reduces the efficiency of measurement. Therefore, the existing structure needs to be improved. Utility Model Content

[0006] The purpose of the utility model is to provide a leg circumference measuring ruler for lower limb venous thrombosis, so as to solve the problem in the above background technology that the measuring ruler is inconvenient to operate and affects the measurement efficiency.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a leg circumference measuring ruler for lower extremity venous thrombosis, comprising a first soft ruler, a second soft ruler connected to the side of the first soft ruler, and a winding mechanism connected to the ends of the first soft ruler and the second soft ruler;

[0008] The winding mechanism includes a first connecting block, the first tape measure is symmetrically connected to the inside of the first connecting block, a first rotating groove is formed inside the first connecting block, a fixing rod is fixed inside the first rotating groove, an elastic rolling strip is connected to the surface of the fixing rod, a first roller is connected to the surface of the elastic rolling strip, the first roller rotates inside the first rotating groove, a second roller is rotatably connected to the side of the first rotating groove near the first roller, and a second rotating groove is formed on the side of the first rotating groove;

[0009] A ratchet is connected to the interior of the second rotating groove, and the ratchet is fixed to the side surface of the first gear. A positioning mechanism for positioning the first soft ruler is provided inside the second rotating groove.

[0010] Furthermore, a first soft ruler is wound around the surface of the second roller and the surface of the first roller, and a first gear and a second gear are respectively rotated inside the second rotating groove.

[0011] Furthermore, the second gear is meshed with the first gear, the first gear is fixed on one side of the first roller, and the second gear is connected to one side of the second roller.

[0012] Furthermore, the positioning mechanism includes a rotating rod, which rotates inside the second rotating groove. A spring is connected between the rotating rod and the second rotating groove. The rotating rod is rotatably connected to the second rotating groove through the spring, and a push block is fixed on one side of the rotating rod.

[0013] Furthermore, the push block rotates through the second rotating groove, the end of the first soft ruler is connected to the second connecting block, and the interior of the second connecting block is connected to the second soft ruler via a winding mechanism.

[0014] Furthermore, the end of the second tape measure is further provided with a positionable fixing mechanism, and the fixing mechanism includes an insert block, which is connected to the end of the second tape measure, and a slot is provided on the back of the second connecting block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This lower extremity venous thrombosis leg circumference measuring ruler has an elastic coil that automatically resets the first and second tape measures through its own elastic force after the measurement is completed, improving the efficiency of the measuring ruler in measuring leg circumference. Pushing the push block can drive the rotating rod to rotate within the second rotating slot, thereby rotating the rotating rod out of the side of the ratchet wheel, achieving automatic retraction of the measuring ruler. Pushing the push block can retract the second tape measure, and the second tape measure will not be too loose when retracted, allowing for more accurate readings and improving the accuracy of the measuring ruler in measuring leg circumference.

[0017] 2. An elastic coil is provided to generate tension on the first and second tape measures, so that the first and second tape measures can automatically return to their original position after being extended, thus improving the operating efficiency of the measuring ruler.

[0018] 3. A first gear and a second gear are provided. The meshing rotation of the first gear and the second gear can simultaneously drive the rotation of the second roller, so that the first soft ruler on the surface of the second roller can be extended and rolled out, thereby running synchronously with the first soft ruler on the surface of the first roller, thereby improving measurement accuracy;

[0019] 4. A ratchet is provided, and the first gear can be positioned through the ratchet and the rotating rod, so that the first tape measure will not be affected by the elastic force of the elastic strip when it is rolled out, thereby improving the convenience of measuring ruler operation;

[0020] 5. An insert block is provided. By positioning the insert block and the slot, the second tape measure can be rolled up by the winding mechanism when measuring the leg circumference, so that the second tape measure is tightened, thereby improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall front-view three-dimensional structure of the utility model;

[0022] Figure 2 This is an enlarged three-dimensional structural diagram of the second soft ruler of the utility model;

[0023] Figure 3 This is a schematic diagram of the sectional three-dimensional structure of the first connecting block of the present invention;

[0024] Figure 4 This is an enlarged three-dimensional structural diagram of the first gear of the utility model;

[0025] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged three-dimensional structure of the middle part A;

[0026] Figure 6 This is a schematic diagram of the cross-sectional three-dimensional structure of the second connecting block of the present invention.

[0027] In the figure: 1. First tape measure; 2. Second tape measure; 3. Winding mechanism; 301. First rotating groove; 302. Fixed rod; 303. Elastic winding strip; 304. First roller; 305. Second roller; 307. Second rotating groove; 308. First gear; 309. Second gear; 310. Ratchet; 311. Rotating rod; 312. Spring; 313. Push block; 314. First connecting block; 315. Second connecting block; 316. Insert block; 317. Slot. DETAILED DESCRIPTION

[0028] 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.

[0029] Example 1:

[0030] like Figure 1-Figure 3The technical solution shown in the figure, the utility model provides the following technical solutions: In order to solve the problem that the measuring ruler is inconvenient to operate and affects the measurement efficiency, a winding mechanism is disclosed:

[0031] The first flexible ruler 1 includes a first flexible ruler 1, a second flexible ruler 2 is connected to the side of the first flexible ruler 1, and the ends of the first flexible ruler 1 and the second flexible ruler 2 are both connected to a winding mechanism 3, the winding mechanism 3 includes a first connecting block 314, the first flexible ruler 1 is symmetrically connected to the inside of the first connecting block 314, a first rotating groove 301 is opened through the inside of the first connecting block 314, a fixing rod 302 is fixed inside the first rotating groove 301, an elastic coil 303 is connected to the surface of the fixing rod 302, and a first roller 304 is connected to the surface of the elastic coil 303, the first roller 304 rotates inside the first rotating groove 301, and the side of the first rotating groove 301 near the first roller 304 is rotatably connected There is a second rotating roller 305, and a second rotating groove 307 is formed on the side of the first rotating groove 301. A ratchet 310 is connected to the inside of the second rotating groove 307. The ratchet 310 is fixed to the side of the first gear 308. A positioning mechanism for positioning the first soft ruler 1 is provided inside the second rotating groove 307. The first soft ruler 1 is wound around the surface of the second rotating roller 305 and the first rotating roller 304. A first gear 308 and a second gear 309 rotate inside the second rotating groove 307 respectively. The second gear 309 is meshed with the first gear 308. The first gear 308 is fixed to one side of the first rotating roller 304, and the second gear 309 is connected to one side of the second roller 305.

[0032] When the measuring ruler is in use, the first connecting block 314 is moved to the patella of the leg for fitting. After fitting, the first flexible ruler 1 is pulled to drive the first roller 304 to rotate. When the first roller 304 rotates, it can rotate inside the first rotating groove 301. When the first roller 304 rotates, the first flexible ruler 1 on the surface can be extended and rolled out. At the same time, when the first roller 304 rotates, the elastic winding strip 303 can be wound out. When the first roller 304 rotates, it can drive the first gear 308 to rotate. When the first gear 308 rotates, it can mesh with the second gear 309 to rotate. When the second gear 309 meshes and rotates, it can drive the second roller 305 to rotate. When the second roller 305 rotates, it can drive another set of first flexible rulers 1 to extend and roll out, thereby The two first flexible rulers 1 are extended in different directions. After the first flexible ruler 1 is extended to a specified position, the length can be measured. When the first flexible ruler 1 is extended, the second connecting block 315 at the end can be moved. After the second connecting block 315 moves to the specified position, the second flexible ruler 2 is pulled. When the second flexible ruler 2 is pulled, it is extended and rolled out in the same way as the first flexible ruler 1. When the second flexible ruler 2 is rolled out, it can be wrapped around the patient's leg. The leg circumference can be measured by the required length of the wrapping around the leg. Since the elastic roll 303 is unwound when the first and second flexible rulers 1 and 2 are extended during measurement, the elastic roll 303 can automatically reset the first and second flexible rulers 1 and 2 by its own elastic force after the measurement is completed, thereby improving the efficiency of measuring the leg circumference with the measuring ruler.

[0033] Example 2:

[0034] like Figure 3 、 Figure 4 and Figure 5 The technical solution shown in the figure, the utility model provides the following technical solution: In order to solve the problem that the first soft ruler 1 and the second soft ruler 2 of the measuring ruler are easily affected by the elastic force and are inconvenient to operate, a positioning mechanism is disclosed on the basis of the first embodiment:

[0035] The positioning mechanism includes a rotating rod 311, which rotates inside the second rotating groove 307. The rotating rod 311 rotates inside the second rotating groove 307. A spring 312 is connected between the rotating rod 311 and the second rotating groove 307. The rotating rod 311 is rotatably connected to the second rotating groove 307 through the spring 312. A push block 313 is fixed on one side of the rotating rod 311. The push block 313 rotates through the second rotating groove 307. The end of the first soft ruler 1 is connected to the second connecting block 315, and the second soft ruler 2 is connected to the inside of the second connecting block 315 through the winding mechanism 3. When the first soft ruler 1 and the second soft ruler 2 of the measuring ruler are extended and wound out, the first gear 308 can rotate inside the second rotating groove 307. When the first gear 308 rotates, it can drive the ratchet 310 to rotate. When the ratchet 310 rotates, the meshing inclined surface can squeeze the side of the rotating rod 311. When the rotating rod 311 is squeezed, it can pass through the second When the second rotating groove 307 rotates, the rotating rod 311 rotates to squeeze the spring 312. When the rotating rod 311 is squeezed to a certain position, the ratchet 310 can rotate. When the first soft ruler 1 and the second soft ruler 2 are extended and rolled out to a specified length, the ratchet 310 will return to its original position under the elastic force of the elastic coiling strip 303. At this time, the spring 312 can push the rotating rod 311 to return to its original position. When the rotating rod 311 is returned to its original position, the ratchet 310 can be positioned. When the ratchet 310 is positioned, the first soft ruler 1 and the second soft ruler 2 will not return to their original position when not in operation, thereby improving the convenience of operating the measuring ruler. At the same time, pushing the pushing block 313 can drive the rotating rod 311 to rotate inside the second rotating groove 307, thereby rotating the rotating rod 311 out of the side of the ratchet 310. At this time, the elastic coiling strip 303 will drive the first soft ruler 1 and the second soft ruler 2 to return to their original position, realizing automatic retraction of the measuring ruler, further improving the convenience of leg circumference measurement.

[0036] Example 3:

[0037] like Figure 2 and Figure 6 The technical solution shown in the figure, the utility model provides the following technical solution: In order to solve the problem that the measurement value of the second soft ruler 2 of the measuring ruler is prone to error, a fixing mechanism is disclosed:

[0038] The end of the second flexible ruler 2 is further provided with a positionable fixing mechanism, which includes an insertion block 316. The insertion block 316 is connected to the end of the second flexible ruler 2. A slot 317 is provided on the back of the second connecting block 315. When the second flexible ruler 2 of the measuring ruler is used to measure the leg circumference, the insertion block 316 is pulled to drive the second flexible ruler 2 to extend and reel out. When the insertion block 316 wraps around the leg and reaches the side of the slot 317, it is inserted at a selected angle. After the insertion block 316 is inserted into the slot 317, the reeling mechanism 3 inside the second connecting block 315 is operated. The second flexible ruler 2 can be retracted by pushing the pushing block 313. The second flexible ruler 2 will not be too loose when retracted, so a more accurate reading can be obtained, thereby improving the accuracy of the measuring ruler in measuring the leg circumference.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A leg circumference measuring ruler for lower limb venous thrombosis, comprising a first soft ruler (1), a second soft ruler (2) connected to the side of the first soft ruler (1), and a winding mechanism (3) connected to the ends of the first soft ruler (1) and the second soft ruler (2). It is characterized by: The winding mechanism (3) comprises a first connecting block (314), the first tape measure (1) is symmetrically connected to the inside of the first connecting block (314), a first rotating groove (301) is provided inside the first connecting block (314), a fixing rod (302) is fixed inside the first rotating groove (301), an elastic coil (303) is connected to the surface of the fixing rod (302), a first roller (304) is connected to the surface of the elastic coil (303), the first roller (304) rotates inside the first rotating groove (301), a second roller (305) is rotatably connected to the side of the first rotating groove (301) close to the first roller (304), and a second rotating groove (307) is provided on the side of the first rotating groove (301); A ratchet (310) is connected to the inside of the second rotating groove (307), and the ratchet (310) is fixed to the side of the first gear (308). A positioning mechanism for positioning the first soft ruler (1) is provided inside the second rotating groove (307).

2. A leg circumference measuring ruler for lower extremity venous thrombosis according to claim 1, characterized in that: The surfaces of the second roller (305) and the first roller (304) are both wound with a first soft ruler (1), and the insides of the second rotating groove (307) respectively rotate with a first gear (308) and a second gear (309).

3. The leg circumference measuring ruler for lower extremity venous thrombosis according to claim 2, characterized in that: The second gear (309) is meshedly connected to the first gear (308), the first gear (308) is fixed on one side of the first rotating roller (304), and the second gear (309) is connected to one side of the second rotating roller (305).

4. The leg circumference measuring ruler for lower extremity venous thrombosis according to claim 3, characterized in that: The positioning mechanism includes a rotating rod (311), the rotating rod (311) rotates inside the second rotating groove (307), the rotating rod (311) rotates inside the second rotating groove (307), a spring (312) is connected between the rotating rod (311) and the second rotating groove (307), the rotating rod (311) is rotatably connected to the second rotating groove (307) through the spring (312), and a push block (313) is fixed on one side of the rotating rod (311).

5. The leg circumference measuring ruler for lower extremity venous thrombosis according to claim 4, characterized in that: The push block (313) rotates through the second rotating groove (307), the end of the first flexible ruler (1) is connected to the second connecting block (315), and the interior of the second connecting block (315) is connected to the second flexible ruler (2) via the winding mechanism (3).

6. The leg circumference measuring ruler for lower extremity venous thrombosis according to claim 1, characterized in that: The end of the second flexible ruler (2) is also provided with a positionable fixing mechanism, the fixing mechanism comprising an insert block (316), the insert block (316) being connected to the end of the second flexible ruler (2), and a slot (317) being provided on the back of the second connecting block (315).

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