Leg circumference measuring tool based on patella
By designing a patella-based leg circumference measurement tool and using limit components and drive components to locate the upper and lower edges of the patella, the problem of large measurement errors of traditional soft tape is solved, fast and accurate leg circumference measurement is achieved, and the homogeneity and accuracy of measurement are improved.
Patent Information
- Application Number
- CN202422468748.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-10-12
AI Technical Summary
In the existing technology, traditional tape measures have large measurement errors due to different techniques and experiences when measuring the patellar leg circumference of patients, and cannot guarantee the homogeneity of measurement, which affects the accuracy of health status judgment.
A patella-based leg circumference measurement tool was designed, which includes a shell, a positioning ruler and a fixing strap. Through the cooperation of the limit component and the drive component, the upper and lower edges of the patella can be quickly and accurately located, and the tool is fixed to the patient's leg through the fixing strap to ensure the accuracy of the measurement.
It achieves rapid and accurate measurement of patients with different patella sizes, reduces measurement errors, and improves measurement homogeneity and accuracy.
Smart Images
Figure CN223453223U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical supplies, and in particular relates to a leg circumference measuring tool based on the patella. Background Art
[0002] In clinical practice, the tool used to measure the patient's patellar leg circumference is a traditional soft tape measure. When measuring the patient's leg circumference, the leg circumference 15 cm above the patella and the leg circumference 10 cm below the patella are measured simultaneously as the measurement standard. However, during the measurement process, due to the different techniques and experience of each medical staff, as well as the individual physical differences of the patients being measured, such as the different patella sizes between men and women, and the different heights, weights and sizes of the patellas among the same sex, medical staff are unable to quickly and accurately locate the upper and lower edges of the patient's patella. This is prone to measurement errors and cannot ensure the homogeneity of the measurement, thus affecting the accuracy of the judgment of the patient's health status. Therefore, a patella-based leg circumference measurement tool is designed to address the above technical defects. Utility Model Content
[0003] (1) Technical problems to be solved
[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a patella-based leg circumference measurement tool, which aims to solve the technical problem that the soft tape measure in the existing technology cannot quickly and accurately measure the patient's leg circumference.
[0005] (2) Technical solution
[0006] In order to solve the above technical problems, the utility model provides a patella-based leg circumference measuring tool, including a shell, a through hole is opened in the middle of the shell, the top rear side and the bottom rear side of the shell are hinged with positioning rulers, two first fixing belts and two second fixing belts are fixedly connected to the left and right sides of the shell respectively, a chamber is opened inside the shell, two symmetrically distributed limit assemblies are provided inside the through hole, and driving assemblies for driving the two limit assemblies are provided inside both sides of the chamber.
[0007] Preferably, the length of the upper positioning ruler is smaller than that of the lower positioning ruler, and two convex strips are fixedly connected to the front faces of the ends of the two positioning rulers that are away from each other.
[0008] Furthermore, the inner top wall and the inner bottom wall of the through hole are both configured to be arc-shaped, and a circular chamfer is provided at the bottom edge of the through hole, and an anti-slip pad is fixedly connected to the outer side of the circular chamfer.
[0009] Furthermore, the two first fixing straps on the left and the two second fixing straps on the right are symmetrically distributed about the center line of the shell, the upper surface of the first fixing strap is fixedly connected with the Velcro hook surface, and the lower surface of the second fixing strap is fixedly connected with the Velcro fleece surface.
[0010] Further, the two limiting assemblies each include a movable plate, the two movable plates are respectively slidably connected to the upper end and the bottom end of the inner portion of the through hole, and the side of the two movable plates away from each other is fixedly connected with two guide columns, and the end of the guide column away from the movable plate slidably penetrates the inner wall of the through hole and extends into the inner portion of the cavity and is fixedly connected with a connecting rod.
[0011] Further, the movable plate is arc-shaped, the rear end of the movable plate is provided with an arc-shaped convex edge, the side of the convex edge matched with the arc-shaped chamfer, and the side of the convex edge away from the arc-shaped chamfer is fixedly connected with a flexible pad.
[0012] Further, the two drive assemblies each include a fixed rod, the two ends of the two fixed rods are respectively fixedly connected with the inner top wall and the inner bottom wall of the cavity, the outer portions of the two fixed rods are fixedly connected with two guide sleeves, the spring is sleeved on the outer side of the fixed rod and located between the two guide sleeves on the same side, the ends of the two guide sleeves on the same side away from each other are respectively hingedly connected with a drive rod, the end of the drive rod away from the guide sleeve is hingedly connected with the same pressing block, the end of the pressing block away from the drive rod slidably penetrates the inner side wall of the cavity and extends to the outside, the ends of the two guide sleeves on the same side away from each other are respectively fixedly connected with the corresponding connecting rods, the edge of the end of the pressing block close to the drive rod is fixedly connected with a limiting ring, and the side of the limiting ring is in contact with the inner wall of the cavity.
[0013] (3) Beneficial effects
[0014] Compared with the prior art, the beneficial effects of the utility model lie in that:
[0015] The utility model discloses a shell with a cavity is provided, the middle part of shell is provided with through -hole, the inside of through -hole is provided with limiting assembly, drive assembly is provided in the cavity, can drive the drive rod of same side motion and makes the guide sleeve slide on the fixed rod through extruding the pressing block, makes the guide sleeve away from each other and stretch spring, the guide sleeve can drive the guide column motion through the connecting rod, thereby making the movable plate away from each other, the distance between the two movable plates is greater than the height of the upper and lower edges of the patella, so that the through -hole is only needed to be placed on the patella, and the pressing block is loosened, under the spring reset action, the movable plate can be reset and close to each other, so that the movable plate contacts the upper and lower edges of the patella, the shell is fixed with the patella through the first fixed band and the second fixed band, and then the positioning ruler is turned over, so that not only can adapt to the patients with different patella sizes, but also can quickly and accurately measure the leg circumference. ACCURACY
[0016] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.
[0017] Figure 2 It is another perspective structure schematic diagram of the utility model.
[0018] Figure 3 It is a top view structural schematic diagram of the utility model.
[0019] Figure 4 It is an explosion structural schematic diagram of the utility model.
[0020] Figure 5 It is a sectional view structural schematic diagram of the utility model.
[0021] Figure 6 It is a sectional view structural schematic diagram of the utility model. Figure 5 It is a sectional view structural schematic diagram of the utility model.
[0022] The marks in the drawing are: 1, shell; 2, positioning ruler; 3, convex strip; 4, first fixing belt; 5, second fixing belt; 6, through hole; 7, limiting assembly; 8, movable plate; 9, guide column; 10, connecting rod; 11, fixed rod; 12, guide sleeve; 13, spring; 14, pressing block; 15, drive rod; 16, cavity; 17, non-slip pad. DETAILED DESCRIPTION
[0023] The specific embodiment is a kind of based on patella's leg circumference measuring tool, its structural schematic diagram as shown in Figures 1-6 The middle part of shell 1 is provided with through hole 6, the top rear side and bottom rear side of shell 1 are hinged with positioning ruler 2, the left and right sides of shell 1 are respectively fixedly connected with two first fixing belts 4 and two second fixing belts 5, the inside of shell 1 is provided with cavity 16, the inside of through hole 6 is provided with two limiting assemblies 7 that are symmetrically distributed, the inside of the two sides of cavity 16 is provided with drive assembly that drives two limiting assemblies 7.
[0024] By aligning through hole 6 on shell 1 with the patient's patella, and pressing two drive assemblies simultaneously, two drive assemblies drive two limiting assemblies 7 to separate, so that the distance between two limiting assemblies 7 is greater than the upper and lower edge height of the patient's patella, then cover the through hole 6 on the patella and release the drive assembly, the drive assembly drives the limiting assembly 7 to reset and limits the upper and lower edges of the patella, so that the shell 1 is in the appropriate position of the patella, the shell 1 is fixed on the patient's leg by the first fixing belt 4 and the second fixing belt 5, the upper positioning ruler 2 is tightly attached to the upper part of the patella by reversing the upper and lower positioning rulers 2, the lower positioning ruler 2 is tightly attached to the lower part of the patella, in addition, the elastic measuring ruler (not shown) is placed between the two convex strips 3 above and below to measure.
[0025] Wherein, the length of the upper positioning ruler 2 is less than the length of the lower positioning ruler 2, and the two positioning rulers 2 are fixedly connected with two convex strips 3 on the front end away from each other; the space between the two convex strips 3 is matched with the width of the elastic measuring ruler; the upper positioning ruler 2 and the convex strip 3 on the same side thereof can position the measuring position 15cm above the patella, and the lower positioning ruler 2 and the convex strip 3 on the same side thereof can position the measuring position 10cm below the patella, so as to facilitate the rapid and accurate measurement of the leg circumference.
[0026] In addition, the inner top wall and the inner bottom wall of the through hole 6 are arranged in an arc shape, a circular arc chamfer is arranged at the bottom edge of the through hole 6, and an anti-skid pad 17 is fixedly connected to the outer side of the circular arc chamfer; the circular arc chamfer can increase the contact area by contacting the skin around the patella, and the anti-skid pad 17 can be rubber or silicone, which increases the friction with the skin and prevents the shell 1 from being deviated.
[0027] In addition, the two first fixing bands 4 on the left side and the two second fixing bands 5 on the right side are symmetrically distributed about the center line of the shell 1, the upper surface of the first fixing band 4 is fixedly connected with a Velcro hook surface, and the lower surface of the second fixing band 5 is fixedly connected with a Velcro loop surface; by winding the two first fixing bands 4 on the left side to the back of the patella and contacting the skin, and winding the two second fixing bands 5 on the right side to the back of the patella to make the Velcro loop surface on the second fixing band 5 adhere to the Velcro hook surface on the first fixing band 4, the shell 1 can be fixed on the outside of the patella.
[0028] In addition, the two limiting assemblies 7 each include a movable plate 8, the two movable plates 8 are respectively slidably connected to the inner top end and the inner bottom end of the through hole 6, the two movable plates 8 are each fixedly connected with two guide columns 9 on the side away from each other, and the ends of the guide columns 9 away from the movable plates 8 are slidably connected to the inner wall of the through hole 6 and extend into the cavity 16 and are fixedly connected with a connecting rod 10; the driving mechanism can drive the movable plates 8 to move in the through hole 6 through the connecting rod 10 and the guide columns 9, so that the two movable plates 8 can move away from or towards each other, thereby adjusting the distance between the two movable plates 8 and the upper and lower edges of the patella.
[0029] In addition, the movable plate 8 is arranged in an arc shape, the rear end of the movable plate 8 is provided with a convex edge in an arc shape, one side of the convex edge is matched with the circular arc chamfer, and a flexible pad is fixedly connected to the side of the convex edge away from the circular arc chamfer; the arc-shaped movable plate 8 is matched with the patella, which can increase the contact area between the movable plate 8 and the patella and ensure the stability of the shell 1; at the same time, the convex edge can also increase the contact area with the patella and the surrounding skin, and the flexible pad can be made of sponge.
[0030] Moreover, the two driving assemblies each comprise a fixed rod 11, two ends of the two fixed rods 11 are fixedly connected with an inner top wall and an inner bottom wall of the cavity 16 respectively, the outer part of the two fixed rods 11 is fixedly connected with two guide sleeves 12, the outer side of the fixed rod 11 and located between the two guide sleeves 12 on the same side is sleeved with a spring 13, the end of the two guide sleeves 12 on the same side and close to each other is hingedly connected with a driving rod 15, the end of the two driving rods 15 on the same side and away from the guide sleeve 12 is hingedly connected with the same pressing block 14, the end of the pressing block 14 and away from the driving rod 15 slides through the inner side wall of the cavity 16 and extends to the outside, the end of the two guide sleeves 12 on the same side and away from each other is fixedly connected with the corresponding connecting rod 10, the end edge of the pressing block 14 close to the driving rod 15 is fixedly connected with a limiting ring, one side of the limiting ring is in contact with the inner wall of the cavity 16; by pressing the two pressing blocks 14 on the two sides with fingers at the same time, the two pressing blocks 14 move towards the inside of the shell 1 at the same time and drive the end of the driving rod 15 to move towards the inside of the cavity 16, at the same time, the end of the driving rod 15 extrudes the other end, so that the other end of the driving rod 15 drives the corresponding guide sleeve 12 to slide on the fixed rod 11, so that the two guide sleeves 12 on the same side move away from each other and stretch the spring 13, the guide sleeve 12 can also drive the connecting rod 10 to move when moving, so that the connecting rod 10 drives the guide column 9 to move towards the inside of the cavity 16, so that the guide column 9 drives the movable plate 8 to move, realizing that the two movable plates 8 move away from each other; when the pressing block 14 is released, the pressing block 14 can move outward under the reset action of the spring 13, at the same time, the two movable plates 8 move close to each other.
[0031] The working principle is that, in use, the shell 1 is held and the through hole 6 on the shell 1 is aligned with the patient's patella, and then the two driving assemblies are pressed, the two pressing blocks 14 on the two sides are pressed by fingers at the same time, the two pressing blocks 14 move towards the inside of the shell 1 at the same time and drive one end of the driving rod 15 to move towards the cavity 16, at the same time, the one end of the driving rod 15 extrudes the other end of the driving rod 15, so that the other end of the driving rod 15 drives the corresponding guide sleeve 12 to slide on the fixed rod 11, so that the two guide sleeves 12 on the same side move away from each other and stretch the spring 13, when the guide sleeve 12 moves, the connecting rod 10 can also be driven to move, so that the connecting rod 10 drives the guide column 9 to move towards the cavity 16, so that the guide column 9 drives the movable plate 8 to move, the two movable plates 8 move away from each other, and the distance between the two movable plates 8 is greater than the height of the upper and lower edges of the patient's patella, then the through hole 6 is covered on the patella and the pressing blocks 14 are loosened, when the pressing blocks 14 are loosened, the pressing blocks 14 can move outward under the restoring action of the spring 13, at the same time, the two movable plates 8 move close to each other and limit the patella, then the two first fixing belts 4 on the left side are wound towards the back of the patella and contact the skin, the two second fixing belts 5 on the right side are wound towards the back of the patella, so that the Velcro male face on the first fixing belt 4 is adhered to the Velcro female face on the second fixing belt 5, so that the shell 1 is fixed on the outside of the patella and the movable plates 8 firmly limit the patella, so that the shell 1 is positioned, the two positioning rulers 2 are reversed, the upper positioning ruler 2 is tightly attached to the upper part of the patella, and the lower positioning ruler 2 is tightly attached to the lower part of the patella, in addition, the elastic measuring ruler (not shown) is wound on the upper part of the patella and the lower part of the patella respectively, and the elastic measuring ruler is located between the two convex strips 3 for accurate measurement.
[0032] All the technical features in the embodiment can be freely combined according to actual needs.
[0033] The above embodiment is a preferred implementation scheme of the utility model, in addition, the utility model can be realized in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.
Claims
1. A patella-based calf measurement tool, characterized by: The utility model provides a kind of measuring tape, including shell (1), the middle part of the shell (1) is equipped with through hole (6), the rear side of the top end and the rear side of the bottom end of the shell (1) are hinged with positioning ruler (2), the left and right sides of the shell (1) are respectively fixedly connected with two first fixed band (4) and two second fixed band (5), the inside of the shell (1) is equipped with cavity (16), the inside of the through hole (6) is equipped with two limit components (7) of symmetry distribution, the two sides of the cavity (16) are equipped with drive two limit components (7) drive component.
2. A patellar-based calf measurement tool according to claim 1, wherein: The length of the upper positioning ruler (2) is less than the length of the lower positioning ruler (2), and the front end of the two positioning rulers (2) away from each other is fixedly connected with two convex strips (3).
3. A patellar-based calf measurement tool according to claim 1, wherein: The inner top wall and the inner bottom wall of the through hole (6) are arranged in an arc shape, the bottom edge of the through hole (6) is provided with a circular arc chamfer, and the outer side of the circular arc chamfer is fixedly connected with a non-slip pad (17).
4. A patellar-based calf measurement tool according to claim 1, wherein, The left two first fixed bands (4) and the right two second fixed bands (5) are symmetrically distributed about the center line of the shell (1), the upper surface of the first fixed band (4) is fixedly connected with a hook surface of a magic tape, and the lower surface of the second fixed band (5) is fixedly connected with a fuzzy surface of a magic tape.
5. A patellar-based calf measurement tool as claimed in claim 1, wherein: Both limit components (7) include a movable plate (8), both movable plates (8) are respectively slidably connected to the inner top end and the inner bottom end of the through hole (6), both movable plates (8) are fixedly connected with two guide columns (9) on the side away from each other, one end of the guide column (9) away from the movable plate (8) slidably penetrates the inner wall of the through hole (6) and extends into the inside of the cavity (16) to be fixedly connected with a connecting rod (10).
6. A patellar-based calf measurement tool according to claim 5, wherein: The movable plate (8) is arranged in an arc shape, the rear end of the movable plate (8) is provided with an arc-shaped convex edge, one side of the convex edge is matched with the circular arc chamfer, and the side of the convex edge away from the circular arc chamfer is fixedly connected with a flexible pad.
7. A patellar-based calf measurement tool as claimed in claim 1, wherein: Both drive components include a fixed rod (11), both ends of the fixed rod (11) are respectively fixedly connected with the inner top wall and the inner bottom wall of the cavity (16), both fixed rods (11) are fixedly connected with two guide sleeves (12) on the outside, a spring (13) is sleeved on the outside of the fixed rod (11) and between the two guide sleeves (12) on the same side, one end of the two guide sleeves (12) on the same side away from each other and away from one side of the through hole (6) is hingedly connected with a drive rod (15), one end of the two drive rods (15) away from the guide sleeve (12) on the same side is hingedly connected with the same pressing block (14), one end of the pressing block (14) away from the drive rod (15) slidably penetrates the inner side wall of the cavity (16) and extends to the outside, one end of the two guide sleeves (12) away from each other is respectively fixedly connected with the corresponding connecting rod (10), the edge of one end of the pressing block (14) close to the drive rod (15) is fixedly connected with a limiting ring, and one side of the limiting ring is in contact with the inner wall of the cavity (16).