Foldable lower limb leg circumference measuring device

Abstract

The utility model belongs to the technical field of medical treatment. The utility model discloses a foldable lower limb leg circumference measuring device which comprises a base structure which can be folded and can position a patella datum point. The upper and lower ends of the base structure are respectively provided with an upper ruler and a lower ruler which are used for positioning the limb positions of a patient at the 15cm upper edge and the 10cm lower edge of the patella of the corresponding lower limb; the ends, away from the base structure, of the upper ruler and the lower ruler are each provided with an automatic contraction measurer used for automatically adjusting and measuring the leg circumference of the corresponding limb position of the corresponding lower limb of a patient so as to judge the thrombolysis and anticoagulation treatment effect. The patella positioning device has the advantages of being convenient to fold, store and manage, and capable of accurately positioning a patella datum point and measuring the leg circumference of a patient so as to accurately judge the thrombolysis and anticoagulation treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, and more specifically, to a foldable lower limb leg circumference measuring device. Background Technology

[0002] In clinical practice, deep vein thrombosis (DVT) of the lower extremities is a venous disease that causes blockage of deep veins and impairs venous return. Common symptoms include sudden swelling and pain in the lower extremities, and in severe cases, it can even lead to disability. Thrombolysis and anticoagulation are important methods for treating DVT. Typically, the degree of swelling in the lower extremities changes after thrombolytic and anticoagulation therapy; therefore, clinically, changes in leg circumference are often measured to assess the effectiveness of the treatment.

[0003] Currently, in clinical practice, the common method for measuring lower limb leg circumference is to use the patella as a reference point. Medical staff use a ruler and measuring tape to measure the leg circumference at 10cm below the patella and 15cm above the patella to assess the effectiveness of thrombolytic and anticoagulant therapy. While this method meets certain needs, the manual manipulation of the ruler and measuring tape by medical staff to locate the patella and measure the leg circumference can easily lead to deviations in patellar positioning and leg circumference measurement, affecting the medical staff's assessment of the effectiveness of thrombolytic and anticoagulant therapy. Furthermore, existing lower limb leg circumference measuring devices made of rulers and measuring tapes are not convenient to fold and store, making them difficult to meet practical application requirements.

[0004] How to solve the above problems has become an urgent technical issue. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a foldable lower limb leg circumference measuring device that is easy to fold, store and manage, can accurately locate the patellar reference point, and can measure the patient's leg circumference to accurately judge the effectiveness of thrombolytic and anticoagulant treatment.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A foldable lower limb leg circumference measuring device includes a foldable base structure capable of locating a patellar reference point; an upper ruler and a lower ruler are respectively provided at the upper and lower ends of the base structure for locating the limb position at 15 cm above the upper edge of the patella and 10 cm below the lower edge of the patella of the corresponding lower limb; an automatic contraction measuring device is provided at the end of the upper and lower rulers away from the base structure for automatically adjusting and measuring the leg circumference size of the corresponding limb position of the corresponding lower limb to determine the effectiveness of thrombolytic and anticoagulant therapy.

[0008] Preferably, the base structure includes an upper positioning plate and a lower positioning plate that are hinged together to facilitate folding, unfolding, and retraction. A positioning port for visually positioning the patellar reference point of the patient's corresponding lower limb is provided between the upper and lower positioning plates. A fixing strap assembly for securely fixing the upper and lower positioning plates to the patient's corresponding lower limb is also provided on the upper and lower positioning plates. The upper ruler is located at the end of the upper positioning plate away from the lower positioning plate, and the lower ruler is located at the end of the lower positioning plate away from the upper positioning plate.

[0009] Preferably, the fixing strap assembly includes a limiting ring disposed on one outer edge of the upper positioning plate via a connecting strap, and a strap body disposed on the other outer edge of the lower positioning plate away from the connecting strap for interlocking with the limiting ring to fix the lower positioning plate and the upper positioning plate together on the corresponding lower limb of the patient. The strap body also has a Velcro surface at one end near the lower positioning plate, and a Velcro hook surface at one end away from the lower positioning plate for adhering to the Velcro surface to securely fix the lower positioning plate and the upper positioning plate together on the corresponding lower limb of the patient.

[0010] Preferably, the automatic shrinkage measuring device includes a housing disposed on the upper ruler or the lower ruler at one end away from the corresponding upper positioning plate or the lower positioning plate. A flexible measuring tape is disposed on one side of the lower end of the housing via a rotating shaft structure, and the movable end of the flexible measuring tape extends out of the housing through that end. A slot is also provided at the bottom of the outer side of the housing away from the rotating shaft structure for detachably engaging with the movable end of the flexible measuring tape to wrap around the corresponding limb position of the patient's lower limb to measure the leg circumference. The device also includes a power supply drive structure disposed in the housing and connected to the rotating shaft structure for driving the rotating shaft structure to move and rewind the flexible measuring tape to realize the automatic measurement of the patient's leg circumference.

[0011] Preferably, the rotating shaft structure includes shaft supports on both sides inside the lower end of the housing, and a rotating shaft is provided between the two shaft supports, with one end of the rotating shaft passing through the outer end of one of the shaft supports and connected to the power supply drive structure. The rotating shaft structure is connected to the fixed end of the flexible measuring tape through the rotating shaft to realize the winding and measurement of the flexible measuring tape.

[0012] Preferably, the power supply drive structure includes a motor disposed within the housing, the output shaft of which is connected to one end of the rotating shaft passing through the outer end of one of the shaft supports via an interleaved helical gear, and also includes a battery disposed within the housing near the motor and electrically connected to the motor.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this invention, after medical personnel determine the patient's patellar reference point, the base structure, along with the upper and lower rulers and the corresponding automatic contraction measuring device, can be accurately positioned and stably fixed at the patellar reference point of the patient's corresponding lower limb. Then, by operating the automatic contraction measuring device located on the upper and lower rulers, the measuring ends of the device can be respectively wrapped around the limb positions 15 cm above the upper edge and 10 cm below the lower edge of the patella. The driving end of the automatic contraction measuring device controls its measuring ends to automatically contract. The measuring end is tightly attached to the patient's lower limb to achieve automatic, rapid, and accurate measurement of the corresponding leg circumference, thereby facilitating medical staff to accurately assess the effectiveness of thrombolytic and anticoagulant therapy based on the leg circumference measurement results. Furthermore, after the leg circumference measurement is completed, the upper ruler, along with the corresponding automatic shrinking measuring device, can be attached to the lower ruler via the folding and collapsing base structure for easy folding and storage. Therefore, this invention has the advantages of easy folding and storage, accurate positioning of the patellar reference point, and accurate measurement of the patient's leg circumference to assess the effectiveness of thrombolytic and anticoagulant therapy. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a structural schematic diagram of a foldable lower limb leg circumference measuring device according to the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Base structure; 11. Upper positioning plate; 12. Lower positioning plate; 13. Positioning port; 14. Fixing belt assembly; 100. Connecting belt; 200. Limiting ring; 300. Belt body; 400. Velcro rough surface; 500. Velcro hook surface; 2. Upper ruler; 3. Lower ruler; 4. Automatic shrinkage measuring device; 41. Housing; 42. Rotating shaft structure; 421. Shaft support; 422. Rotating shaft; 43. Flexible measuring tape; 44. Slot; 45. Power supply drive structure; 451. Motor; 452. Interlocking shaft helical gear; 453. Battery. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1:

[0020] See Figure 1As shown, a foldable lower limb leg circumference measuring device includes a foldable base structure 1 capable of locating the patellar reference point; an upper ruler 2 and a lower ruler 3 are respectively provided at the upper and lower ends of the base structure 1 for locating the limb position at 15 cm above the upper edge of the patella and 10 cm below the lower edge of the patella of the corresponding lower limb; an automatic contraction measuring device 4 is provided at the end of the upper ruler 2 and the lower ruler 3 away from the base structure 1 for automatically adjusting and measuring the leg circumference size of the corresponding limb position of the corresponding lower limb to determine the effectiveness of thrombolytic and anticoagulant treatment.

[0021] In this embodiment, after medical staff determine the patient's patellar reference point, the base structure 1, together with the upper ruler 2, the lower ruler 3, and the corresponding automatic contraction measuring device 4, can be accurately positioned and stably fixed at the patellar reference point of the patient's corresponding lower limb. Then, by operating the automatic contraction measuring device 4 located on the upper ruler 2 and the lower ruler 3, the measuring end of the corresponding automatic contraction measuring device 4 can be wrapped around the limb position 15 cm above the upper edge of the patella and 10 cm below the lower edge of the patella, respectively. Then, the driving end of the automatic contraction measuring device 4 is used to control its measuring end to automatically contract so that the measuring end is tightly attached to the patient's lower limb, thereby realizing the automatic, fast, and accurate measurement of the patient's corresponding lower limb leg circumference. This allows medical staff to accurately judge the effectiveness of thrombolytic and anticoagulant therapy based on the leg circumference measurement results. In addition, after the leg circumference measurement is completed, the upper ruler 2, together with the corresponding automatic contraction measuring device 4 and the lower ruler 3, can be folded and folded together by folding and folding the base structure 1 for easy folding, storage, and management.

[0022] Example 2:

[0023] See Figure 1As shown, the difference between this embodiment and Embodiment 1 is that the base structure 1 includes an upper positioning plate 11 and a lower positioning plate 12 that are hinged together for easy folding and unfolding. A positioning port 13 for visually positioning the patellar reference point of the corresponding lower limb of the patient is provided between the upper positioning plate 11 and the lower positioning plate 12. A fixing strap assembly 14 for securely fixing the upper positioning plate 11 and the lower positioning plate 12 to the corresponding lower limb of the patient is also provided on the upper positioning plate 11 and the lower positioning plate 12. The upper ruler 2 is provided at one end of the upper positioning plate 11 away from the lower positioning plate 12, and the lower ruler 3 is provided at one end of the lower positioning plate 12 away from the upper positioning plate 11. The fixing strap assembly 14 includes a limiting ring 200 disposed on one outer edge of the upper positioning plate 11 via a connecting strap 100, and a strap body 300 disposed on the other outer edge of the lower positioning plate 12 away from the connecting strap 100 for interlocking with the limiting ring 200 to fix the lower positioning plate 12 and the upper positioning plate 11 together on the corresponding lower limb of the patient. A hook and loop fastener surface 400 is provided on one end of the strap body 300 near the lower positioning plate 12, and a hook and loop fastener hook surface 500 is provided on one end of the strap body 300 away from the lower positioning plate 12 for interlocking with the hook and loop fastener surface 400 to securely fix the lower positioning plate 12 and the upper positioning plate 11 together on the corresponding lower limb of the patient.

[0024] In this embodiment, after medical personnel determine the patient's patellar reference point, under the visual positioning adjustment of the positioning port 13 of the base structure 1, the upper positioning plate 11, together with the lower positioning plate 12, the fixing strap assembly 14, the upper ruler 2, the lower ruler 3, and the automatic contraction measuring device 4, are positioned and placed at the patellar reference point of the corresponding lower limb of the patient. Then, the movable end of the strap 300 of the fixing strap assembly 14 is pulled to move around the bottom of the patient's lower limb and pass through the ring hole of the limiting ring 200, and the connecting strap 100... Under the action of the buckle of the limiting ring 200, the movable end of the belt body 300 is pulled relative to the limiting ring 200 towards the fixed end of the belt body 300. Under the connection and limitation of the upper positioning plate 11 and the lower positioning plate 12, until the upper positioning plate 11, the lower positioning plate 12, the connecting belt 100, the limiting ring 200, and the belt body 300 cooperate to securely fit on the patellar reference point of the corresponding lower limb of the patient, the hook and loop fasteners 400 and 500 are then glued together, thereby securing the upper positioning plate 100. Together with the lower positioning plate 12, the upper ruler 2, the lower ruler 3, and the automatic contraction measuring device 4, the device is securely positioned on the patellar reference point of the patient's corresponding lower limb. Guided by the distance and position of the upper ruler 2 and the lower ruler 3, the measuring end of the automatic contraction measuring device 4 located on the upper ruler 2 and the lower ruler 3 can be wrapped around the limb position 15 cm above the upper edge of the patella and 10 cm below the lower edge of the patella, respectively. The driving end of the automatic contraction measuring device 4 is used to control the automatic contraction of its measuring end so that the measuring end is tightly attached to the patient's lower limb, thereby realizing the automatic, rapid, and accurate measurement of the leg circumference of the patient's corresponding lower limb. This allows medical staff to accurately judge the effectiveness of thrombolytic and anticoagulant therapy based on the leg circumference measurement results. In addition, after the leg circumference measurement is completed, the upper positioning plate 11 and the lower positioning plate 12 can be folded and stored together to make the upper ruler 2, the corresponding automatic contraction measuring device 4, and the lower ruler 3 fit together for easy folding and storage.

[0025] Example 3:

[0026] See Figure 1As shown, the difference between this embodiment and Embodiment 1 is that the automatic shrinkage measuring device 4 includes a housing 41 disposed on the upper ruler 2 or the lower ruler 3 away from the corresponding upper positioning plate 11 or lower positioning plate 12. A soft measuring tape 43 is provided on the lower side of the inner side of the housing 41 through a rotating shaft structure 42, and the movable end of the soft measuring tape 43 extends out of the housing 41 through that end. A slot 44 is also provided on the outer bottom of the housing 41 away from the rotating shaft structure 42 for detachably engaging with the movable end of the soft measuring tape 43 to wrap around the corresponding limb position of the patient's lower limb to measure the leg circumference. It also includes a power supply drive structure 45 disposed in the housing 41 and connected to the rotating shaft structure 42 for driving the rotating shaft structure 42 to move and rewind the soft measuring tape 43 to realize the automatic measurement of the patient's leg circumference.

[0027] In this embodiment, guided by the distance and position of the upper ruler 2 and the lower ruler 3, and positioned within the housing 41 of the automatic contraction measuring device 4, the movable end of the flexible measuring tape 43 of the automatic contraction measuring device 4, located on the upper ruler 2 and the lower ruler 3, is pulled around the bottom of the corresponding lower limb of the patient until the movable end of the flexible measuring tape 43 is inserted into the corresponding slot 44. Then, the power supply drive structure 45 is activated to drive the rotating shaft structure 42 to rotate in a predetermined direction. The rotation of the rotating shaft structure 42 drives the flexible measuring tape 43 to move and rewind, so that each flexible measuring tape 43 is tightly wrapped and attached to the limb position 15 cm above the upper edge of the patella and 10 cm below the lower edge of the patella under the limitation of the corresponding housing 41, thereby measuring the patient's leg circumference. This achieves automatic, rapid, and accurate measurement of the patient's corresponding lower limb leg circumference, allowing medical personnel to accurately determine the effectiveness of thrombolytic and anticoagulant therapy based on the leg circumference measurement results.

[0028] Example 4:

[0029] See Figure 1 As shown, the difference between this embodiment and Embodiment 1 is that: the rotating shaft structure 42 includes shaft supports 421 located on both sides of the interior of the lower end of the housing 41. A rotating shaft 422 is provided between the two shaft supports 421, and one end of the rotating shaft 422 passes through the outer end of one of the shaft supports 421 and is connected to the power supply drive structure 45. The rotating shaft structure 42 is connected to the fixed end of the flexible measuring tape 43 through the rotating shaft 422 to realize the winding and measurement of the flexible measuring tape 43. The power supply drive structure 45 includes a motor 451 located in the housing 41, and the output shaft of the motor 451 is connected to the end of the rotating shaft 422 passing through the outer end of one of the shaft supports 421 through a cross-shaft helical gear 452. It also includes a battery 453 located in the housing 41 near the motor 451 and electrically connected to the motor 451.

[0030] In this embodiment, guided by the distance and position of the upper ruler 2 and lower ruler 3, and positioned within the housing 41 of the automatic contraction measuring device 4, the movable end of the flexible measuring tape 43 of the automatic contraction measuring device 4, located on the upper ruler 2 and lower ruler 3, is pulled around the bottom of the corresponding lower limb of the patient until the movable end of the flexible measuring tape 43 is inserted into the corresponding slot 44. Then, powered by the battery 453 of the power supply drive structure 45, the motor 451 is started. Supported by the shaft support 421 of the rotating shaft structure 42, the motor 451... The output shaft drives the interlocking helical gear 452 to rotate the shaft 422 relative to the shaft support 421 in a predetermined direction. The rotation of the shaft 422 drives the corresponding soft measuring tape 43 to move and rewind, so that each soft measuring tape 43 is tightly wrapped and attached to the limb position 15 cm above the upper edge of the patella and 10 cm below the lower edge of the patella under the limitation of the corresponding housing 41, so as to realize the measurement of the patient's leg circumference. This enables the automatic, fast and accurate measurement of the patient's corresponding lower limb leg circumference, so that medical staff can accurately judge the effectiveness of thrombolytic and anticoagulant therapy with the leg circumference measurement results.

[0031] In specific use of this embodiment, firstly, after medical personnel determine the patient's patellar reference point, under the visual positioning adjustment function of the positioning port 13 of the base structure 1, the upper positioning plate 11, together with the lower positioning plate 12, the fixing strap assembly 14, the upper ruler 2, the lower ruler 3, and the automatic contraction measuring device 4, are positioned and placed at the patellar reference point of the corresponding lower limb of the patient. Then, the movable end of the strap body 300 of the fixing strap assembly 14 is pulled to move around the bottom of the patient's lower limb and pass through the ring hole of the limiting ring 200. Under the limiting function of the connecting strap 100 and the buckle of the limiting ring 200, the movable end of the strap body 300 is pulled relative to the limiting ring 200 towards the strap. The fixed end of the strap 300 moves, under the connection and limitation of the upper positioning plate 11 and the lower positioning plate 12, until the upper positioning plate 11, the lower positioning plate 12, the connecting strap 100, the limiting ring 200, and the strap body 300 cooperate to securely fit onto the patellar reference point of the corresponding lower limb of the patient; next, the hook and loop sides 400 and the hook and loop sides 500 of the Velcro are glued together, thereby securing the upper positioning plate 11 together with the lower positioning plate 12, the upper ruler 2, the lower ruler 3, and the automatic contraction measuring device 4 to the patellar reference point of the corresponding lower limb of the patient; then, the distance guidance and position limitation of the upper ruler 2 and the lower ruler 3, and the automatic contraction measuring device 4 Under the positional limitation of the housing 41, by pulling the movable end of the flexible measuring tape 43 of the automatic contraction measuring device 4 located on the upper ruler 2 and lower ruler 3, the flexible measuring tape 43 moves around the bottom of the corresponding lower limb of the patient until the movable end of the corresponding flexible measuring tape 43 is inserted into the corresponding slot 44. Then, under the power supply of the battery 453 of the power supply drive structure 45, the motor 451 is started to work. Under the support and limitation of the shaft support 421 of the rotating shaft structure 42, the output shaft of the motor 451 drives the interlocking helical gear 452 to drive the rotating shaft 422 to rotate relative to the shaft support 421 in a predetermined direction. The rotation of the rotating shaft 422 drives the corresponding flexible measuring tape 43 to move. The automatic retraction mechanism allows each soft measuring tape 43 to be tightly wrapped and attached to the patient's leg at 15 cm above the patella and 10 cm below the patella, within the constraints of the corresponding housing 41, thus measuring the patient's leg circumference. This enables automatic, rapid, and accurate measurement of the patient's leg circumference, allowing medical staff to accurately assess the effectiveness of thrombolytic and anticoagulant therapy. Finally, after the leg circumference measurement is completed, the upper positioning plate 11 and the lower positioning plate 12 can be folded together to attach the upper ruler 2, along with the corresponding automatic shrinkage measuring device 4, to the lower ruler 3 for easy storage and management.

[0032] In summary, the present invention, with the above-described structure, has the advantages of being easy to fold and store, accurately locating the patellar reference point, and measuring the patient's leg circumference to accurately determine the effectiveness of thrombolytic and anticoagulant therapy.

[0033] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A foldable lower limb leg circumference measuring device, comprising a foldable base structure (1) capable of locating the patellar reference point; characterized in that: At the upper and lower ends of the base structure (1), there are an upper ruler (2) and a lower ruler (3) for locating the limb position of the patient at 15 cm above the upper edge of the patella and 10 cm below the patella, respectively; at the end of the upper ruler (2) and the lower ruler (3) away from the base structure (1), there is an automatic contraction measuring device (4) for automatically adjusting and measuring the leg circumference size of the corresponding limb position of the patient to judge the effectiveness of thrombolytic and anticoagulant treatment.

2. The foldable lower limb leg circumference measuring device according to claim 1, characterized in that: The base structure (1) includes an upper positioning plate (11) and a lower positioning plate (12) that are hinged together for easy folding and unfolding. A positioning port (13) for visually positioning the patellar reference point of the corresponding lower limb of the patient is provided between the upper positioning plate (11) and the lower positioning plate (12). A fixing strap assembly (14) for securely fixing the upper positioning plate (11) and the lower positioning plate (12) to the corresponding lower limb of the patient is also provided on the upper positioning plate (11) and the lower positioning plate (12). The upper ruler (2) is located on the upper positioning plate (11) at one end away from the lower positioning plate (12), and the lower ruler (3) is located on the lower positioning plate (12) at one end away from the upper positioning plate (11).

3. The foldable lower limb leg circumference measuring device according to claim 2, characterized in that: The fixing strap assembly (14) includes a limiting ring (200) on one outer edge of the upper positioning plate (11) via a connecting strap (100), and a strap body (300) on the other outer edge of the lower positioning plate (12) away from the connecting strap (100) for interlocking with the limiting ring (200) to fix the lower positioning plate (12) and the upper positioning plate (11) together on the corresponding lower limb of the patient. The strap body (300) also has a hook and loop fastener (400) at one end near the lower positioning plate (12), and a hook and loop fastener (500) at one end away from the lower positioning plate (12) for sticking with the hook and loop fastener (400) to securely fix the lower positioning plate (12) and the upper positioning plate (11) together on the corresponding lower limb of the patient.

4. The foldable lower limb leg circumference measuring device according to claim 2, characterized in that: The automatic shrinkage measuring device (4) includes a housing (41) disposed on the upper ruler (2) or the lower ruler (3) at one end away from the corresponding upper positioning plate (11) or lower positioning plate (12). A soft measuring tape (43) is provided on the lower side of the inner side of the housing (41) through a rotating shaft structure (42), and the movable end of the soft measuring tape (43) extends out of the housing (41) through that end. A slot (44) is also provided at the bottom outer side of the housing (41) away from the rotating shaft structure (42) for detachably engaging with the movable end of the soft measuring tape (43) to wrap around the corresponding limb position of the patient's lower limb to measure the leg circumference. It also includes a power supply drive structure (45) disposed in the housing (41) and connected to the rotating shaft structure (42) for driving the rotating shaft structure (42) to drive the soft measuring tape (43) to move and rewind to realize the automatic measurement of the patient's leg circumference.

5. The foldable lower limb leg circumference measuring device according to claim 4, characterized in that: The rotating shaft structure (42) includes shaft supports (421) located on both sides of the inner side of the lower end of the housing (41). A rotating shaft (422) is provided between the two shaft supports (421), and one end of the rotating shaft (422) passes through the outer end of one of the shaft supports (421) and is connected to the power supply drive structure (45). The rotating shaft structure (42) is connected to the fixed end of the flexible measuring tape (43) through the rotating shaft (422) to realize the winding measurement of the flexible measuring tape (43).

6. The foldable lower limb leg circumference measuring device according to claim 5, characterized in that: The power supply drive structure (45) includes a motor (451) disposed in the housing (41), and the output shaft of the motor (451) is connected to one end of the rotating shaft (422) passing through the outer end of one of the shaft supports (421) via an interleaved helical gear (452). It also includes a battery (453) disposed in the housing (41) near the motor (451) and electrically connected to the motor (451).

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