A device for measuring the height of heel lift after achilles tendon rupture repair

By designing a measuring device that includes a housing, a contact detection rod, and a digital display panel, the accuracy and error problems in measuring heel raise height of patients with Achilles tendon rupture were solved, enabling fast and accurate heel raise height measurement, and supporting convenient disassembly, assembly, and maintenance of the device.

CN121196532BActive Publication Date: 2026-03-20GENERAL HOSPITAL OF THE CENT WAR ZONE OF THE CHINESE PEOPLES LIBERATION ARMY
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Patent Information

Application Number
CN202511736083.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-03-20
Estimated Expiration
2045-11-25

AI Technical Summary

Technical Problem

Existing ruler-based or laser rangefinder methods cannot accurately measure heel raise height during the brief period of heel raises performed by patients after Achilles tendon rupture repair surgery, and are prone to measurement errors.

Method used

A measuring device comprising a housing, contact detection rods, a contact sensing panel, and a digital display panel is designed. By synchronously triggering the contact sensing panel through multi-rod detection, the heel height can be measured quickly and accurately. A reset component is used to ensure stable use and cyclic measurement of the device.

Benefits of technology

It enables rapid and accurate measurement of heel height, reduces measurement errors, and the modular design of the device facilitates disassembly and maintenance.

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Abstract

The application belongs to the field of medical equipment and specifically discloses an ankle height measuring device for achilles tendon rupture repair, which comprises a shell body, a plurality of installation channels are formed through the inside of the shell body in the horizontal direction, a plurality of contact detection rods are installed in the installation channels one by one, one end of the contact detection rod is located in the inside of the shell body as a panel contact end, the other end is located in the outside of the shell body as a foot contact end, the axis direction of the contact detection rod is the same as the layout direction of the installation channel, a contact sensing panel is fixedly connected to the shell body, and a digital display panel is arranged on the shell body and / or the contact sensing panel and electrically connected with the contact sensing panel. Through the structural design, the highest point of the heel can be quickly captured in the moment when the patient briefly lifts the ankle, and the digital height reading can be instantaneously output, so that the ankle height measurement is fast, accurate and error-free.
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Description

Technical Field

[0001] This application belongs to the field of medical devices, and more specifically, relates to a device for measuring heel raise height after Achilles tendon rupture repair surgery. Background Technology

[0002] In recent years, the number of patients with Achilles tendon rupture and Achilles tendon distalization has been increasing. Acute Achilles tendon rupture is more common among male sports enthusiasts, while Achilles tendon distalization is more common among athletes, dancers, and people with long-term overuse injuries. As the strongest tendon in the human body, the Achilles tendon can withstand loads up to 12 times the body weight during walking and running. Once ruptured or distalized, it often leads to weakness in plantar flexion, difficulty pushing off the ground, and even the inability to perform heel raises, significantly limiting daily activities and work capacity. Acute rupture is often accompanied by severe pain and local depression; distalization manifests as morning stiffness and chronic pain that worsens after activity. In later stages, calcification or bone spurs can further damage the tendon structure. In addition, patients also face the risk of complications such as muscle atrophy, traumatic arthritis, Achilles tendon shortening, or adhesions.

[0003] Patients with this condition generally have a poor prognosis. Although structural healing can be achieved through surgery or conservative treatment, a small number of patients still experience long-term ankle stiffness or limited mobility. The re-rupture rate after conservative treatment is higher than that after surgery, and the Achilles tendon may heal in a lengthened state, leading to loss of strength and gait abnormalities. A particularly prominent aspect of patient outcomes is the poor recovery of heel raise ability. Due to decreased Achilles tendon mechanical properties (such as weakened shear resistance and abnormal viscosity) and atrophy of the triceps surae muscle, patients experience a significant reduction in heel raise height and endurance.

[0004] When reviewing these patients, it is crucial to record their heel-raising ability. Common techniques include ruler measurement or laser rangefinder measurement. However, after surgery, patients often experience lower limb muscle atrophy and wound pain, leading to decreased heel-raising ability, lower heel-raising height, and shorter duration of heel-raising. Using ruler measurement or laser rangefinder to measure heel-raising height in these patients cannot accurately measure the reading within the short duration of the heel-raising motion, and it is also impossible to ensure the ruler is perfectly perpendicular to the ground, resulting in inaccurate readings and measurement errors. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this application provides a device for measuring heel raise height after Achilles tendon rupture repair surgery. It aims to solve the problems that existing ruler measurement methods or laser rangefinder measurements cannot accurately measure readings during the short period of heel raises and that the measurement results are prone to errors.

[0006] This application provides a device for measuring heel raise height after Achilles tendon rupture repair surgery, specifically comprising:

[0007] A shell body, an inside of the shell body is provided with a plurality of installation channels in a horizontal direction;

[0008] A plurality of contact detection rods, each of the contact detection rods is installed in the installation channel one by one, one end of the contact detection rod is located in the inside of the shell body as a panel contact end, the other end is located outside the shell body as a foot contact end, the axis direction of the contact detection rod is the same as the layout direction of the installation channel and the contact detection rod can be movably arranged along the axis direction;

[0009] A contact sensing panel, the contact sensing panel is fixedly connected to the shell body and located at the rear end of the installation channel, when any of the contact detection rods moves a distance to the rear end of the installation channel, the panel contact end of the contact detection rod abuts against the contact sensing panel;

[0010] A digital display panel, the digital display panel is arranged on the shell body and / or the contact sensing panel and electrically connected to the contact sensing panel.

[0011] Compared with the prior art, the above technical scheme conceived by the present application realizes synchronous and rapid measurement of the height of the heel of the patient after the Achilles tendon rupture repair, because the measuring device is provided with a plurality of contact detection rods which can be independently slid in the shell body and are linked with the contact sensing panel and the digital display panel at the rear end; when the patient lifts the heel, the rear ankle heel is the most protruding point of the patient's sagittal plane, after the whole measuring device is moved to make the plurality of contact detection rods contact the heel, the contact detection rod corresponding to the rear ankle heel is pushed and triggers the contact sensing panel, and the digital display panel instantly displays the corresponding height data, so that the height of the ankle heel is read, the reading is the height of the sensing panel perpendicular to the ground, and the beneficial effects of simple operation, high measurement accuracy and intuitive results can be achieved.

[0012] As a further preferred, the inside of the shell body is provided with a limiting cavity which is communicated with the installation channel and is located near the rear end of the installation channel, the panel contact end of the contact detection rod is located in the limiting cavity, the panel contact end is provided with a first ball, and the diameter of the first ball is greater than the inner diameter of the installation channel, so as to limit the contact detection rod from being pulled out.

[0013] As a further preferred, the measuring device further comprises a reset assembly for driving the contact detection rod to move away from the contact sensing panel.

[0014] As a further preferred, the inside of the shell body is further provided with an installation cavity which is communicated with the installation channel, the contact detection rod penetrates through the installation cavity and the part of the contact detection rod located in the installation cavity is fixedly connected with a second ball; the reset assembly is arranged in the installation cavity and acts on the second ball.

[0015] As a further preferred embodiment, the reset assembly includes a reset plate and a reset spring. The reset plate is disposed in the mounting cavity and has several through holes for the contact detection rod to pass through. The diameter of the through holes is smaller than the diameter of the second ball. The second ball is located on the side of the reset plate near the front end of the mounting channel. The reset spring is fixedly connected between the reset plate and the inner wall of the mounting cavity and drives the reset plate and the second ball to move away from the contact sensing panel with elastic force.

[0016] As a further preferred embodiment, the outer shell body includes a first mounting member, a first annular connector, a second mounting member, and a second annular connector arranged sequentially in a horizontal direction. The first mounting member and the second mounting member are both detachably connected to the first annular connector. The interior of the first annular connector is configured as a cavity to form the mounting cavity. The second mounting member and the contact sensing panel are both detachably connected to the second annular connector. The interior of the second annular connector is configured as a cavity to form the limiting cavity.

[0017] As a further preferred embodiment, the first mounting member and the second mounting member are each provided with a first stepped groove on the side that is close to each other, the first annular connector is sleeved on the outside of the first stepped groove, the second mounting member and the contact sensing panel are each provided with a second stepped groove on the side that is close to each other, the second annular connector is sleeved on the outside of the second stepped groove, and after the first mounting member, the first annular connector, the second mounting member, the second annular connector and the contact sensing panel are connected in sequence, their outer surfaces form a continuous and flat whole.

[0018] As a further preferred embodiment, the contact detection rod includes a panel contact section and a foot contact section, which are detachably connected, and the second ball is disposed on the foot contact section.

[0019] As a further preferred embodiment, a buffer protective layer is provided on the contact surface of the contact sensing panel.

[0020] As a further preferred embodiment, the foot contact end of the contact detection rod is configured as a smooth round end.

[0021] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages:

[0022] 1. The measuring device in the application can quickly capture the highest point of the heel and output digital height reading instantaneously through the integrated structure design of "multi-rod detection - panel trigger - data display", effectively solving the problem of inaccurate reading and inability to measure in time caused by operation delay and angle deviation of existing ruler method or laser ranging due to poor ankle heel-raising ability and short heel-raising time of patients with Achilles tendon rupture after surgery, realizing fast, accurate and error-free heel-raising height measurement.

[0023] 2. The measuring device in the application is sequentially arranged and detachably connected along the axial direction by the first mounting member, the first annular connecting member, the second mounting member, the second annular connecting member and the contact sensing panel, and the inner cavity of the annular connecting member forms the first mounting cavity. The modular assembly structure makes the device easy to disassemble and calibrate, maintain and store and transport.

[0024] 3. The reset assembly in the application is hidden in the mounting cavity. The reset plate and the reset spring act on the second ball together, so that all contact detection rods are synchronized and returned to the measured state instantaneously after measurement. The perforated limiting structure ensures that the reset plate only pushes the second ball without clamping the rod, ensuring smooth and consistent rebound of the reset plate, realizing stable use and cyclic measurement of the device. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the overall structure schematic diagram of the measuring device provided by the embodiment of the application;

[0026] Figure 2 is the side view structure schematic diagram of the measuring device provided by the embodiment of the application;

[0027] Figure 3 is the exploded view of the measuring device shell body and the contact sensing panel provided by the embodiment of the application;

[0028] Figure 4 is the sectional view structure schematic diagram of the measuring device provided by the embodiment of the application;

[0029] Figure 5 is the overall structure schematic diagram of the installation channel contact detection rod provided by the embodiment of the application;

[0030] Figure 6 is the sectional view structure schematic diagram of the contact detection rod provided by the embodiment of the application;

[0031] Figure 7 is the structure schematic diagram of the measuring device in use provided by the embodiment of the application.

[0032] In all the drawings, the same reference signs are used to represent the same elements or structures, wherein:

[0033] 1, housing body; 11, mounting channel; 12, limiting cavity; 13, mounting cavity; 14, first mounting piece; 15, first annular connecting piece; 16, second mounting piece; 17, second annular connecting piece; 2, contact detection rod; 21, panel contact section; 211, first sphere; 22, foot contact section; 221, foot contact end; 222, second sphere; 3, contact sensing panel; 4, digital display panel; 5, reset assembly; 51, reset plate; 52, reset spring. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0035] The present application discloses a heel height measuring device for Achilles tendon rupture repair, which can accurately and quickly read the ankle heel height compared with the traditional ruler method or the use of laser range finder measurement, solves the problems of poor ankle heel ability, short heel time, difficulty in measuring ankle heel height, and cannot guarantee perpendicularity with the ground when using a ruler to measure the heel height, and the naked eye reading is not accurate, etc.

[0036] REFERENCE Figures 1-4 The heel height measuring device specifically comprises a housing body 1, a contact detection rod 2, a contact sensing panel 3, a digital display panel 4, and a reset assembly 5, wherein the housing body 1 serves as the bearing matrix of the whole measuring device, the contact detection rod 2, the contact sensing panel 3, the digital display panel 4, and the reset assembly 5 are all installed on the housing body 1; one end of the contact detection rod 2 directly contacts the heel and can be pushed to displace for real-time sensing of the heel-off height; the contact detection rod 2 contacts the contact sensing panel 3 after displacement, the contact sensing panel 3 can convert the displacement of the contact detection rod 2 into an electrical signal, the contact sensing panel 3 is a commonly used component in the art, which can trigger a response after receiving pressure, and an electrical signal is generated after the corresponding height sensor inside the contact sensing panel 3 responds; the digital display panel 4 is electrically connected with the contact sensing panel 3, and the digital display panel 4 can display the heel height value in real time after receiving the electrical signal transmitted by the contact sensing panel 3; the reset assembly 5 can reset the contact detection rod 2 after displacement, and make the digital display zero after one measurement, so as to facilitate re-measurement.

[0037] Specifically, the outer casing 1 is placed horizontally during use, and several installation channels 11 are opened horizontally inside it. The front end of the outer casing 1 is the front end of the installation channel 11. When the device is in use, the front end of the outer casing 1 faces the patient's heel, and the rear end of the outer casing 1 is the rear end of the installation channel 11. At the same time, several contact detection rods 2 are also provided, and the number of the same number of installation channels 11 is provided. The contact detection rods 2 are installed one by one in the installation channel 11. The axial direction of the contact detection rods 2 is the same as the layout direction of the installation channel 11, and the contact detection rods 2 can be moved along the axial direction. The inner diameter of the installation channel 11 is slightly larger than the diameter of the contact detection rods 2, so that the contact detection rods 2 can move smoothly along the axial direction without large shaking. The contact detection rods 2 are arranged densely so that multiple contact detection rods 2 at the same height can simultaneously contact the heel and be pushed to move, ensuring that the contact sensing panel 3 accurately senses the heel, so that the digital display panel 4 can display the accurate heel raise height. The measuring device uses a dense array and multi-rod synchronous triggering structure design. When the heel is raised, multiple contact detection rods 2 at the same height layer are pushed simultaneously, generating multi-point synchronous signals. After being collected by the contact sensing panel 3, the height value is output by the digital display panel 4, improving measurement accuracy and repeatability.

[0038] Reference Figures 5-6 More specifically, the contact detection rod 2 has a segmented structure, including a panel contact section 21 and a foot contact section 22. The end of the panel contact section 21 is the panel contact end, which cooperates with the contact sensing panel 3. The end of the foot contact section 22 is the foot contact end 221, which is set as a smooth round end and directly contacts the heel. The panel contact end of the contact detection rod 2 is located inside the outer shell 1, and the foot contact end 221 of the contact detection rod 2 is located outside the outer shell 1. The panel contact section 21 and the foot contact section 22 are detachably connected to facilitate the installation and removal of the contact detection rod 2 in the measuring device. Specifically, the detachable connection between the panel contact section 21 and the foot contact section 22 can be achieved by a threaded connection. In other embodiments, the detachable connection can also be achieved by magnetic attraction.

[0039] Further, the contact sensing panel 3 is vertically fixedly connected to the shell body 1 and located at the rear end of the mounting channel 11, and a buffer protection layer is arranged on the contact surface of the contact sensing panel 3, when any contact detection rod 2 moves a distance to the rear end of the mounting channel 11, the panel contact end thereof abuts against the contact sensing panel 3, and the buffer protection layer can effectively reduce the pressure of the contact detection rod 2 on the contact sensing panel 3, so as to prolong the service life of the contact sensing panel 3. The digital display panel 4 is fixedly installed on the shell body 1 or the contact sensing panel 3, or the digital display panel 4 is installed on both the shell body 1 and the contact sensing panel 3, so that the measurer can read from different angles, and after the overall installation of the measuring device, the digital display panel 4 is electrically connected with the contact sensing panel 3, when the contact detection rod 2 contacts the contact sensing panel 3, the contact sensing panel 3 can obtain the reading of the height at which the corresponding contact detection rod 2 is located, and the reading is displayed on the digital display panel 4 for reading, and when multiple contact detection rods 2 contact the contact sensing panel 3, the maximum reading is taken as the display reading on the display panel, that is, the heel height. When the patient lifts the heel, the rear malleolus heel is the most protruding point of the patient's sagittal plane, and after moving the overall measuring device to make the several contact detection rods 2 contact the heel, the contact detection rod 2 corresponding to the rear malleolus heel is pushed and triggers the contact sensing panel 3, and the digital display panel 4 instantly displays the corresponding height data, so as to read the ankle heel height, and the reading is the height of the height of the sensing panel perpendicular to the ground, after the detection is completed, the overall measuring device is removed, and the reset assembly 5 can reset the pushed contact detection rod 2, so as to be used again, that is, the reset assembly 5 can drive the contact detection rod 2 to move away from the contact sensing panel 3.

[0040] With reference to Figure 4 In order to prevent the contact detection rod 2 from being pulled out of the mounting channel 11, in the embodiment, a limiting cavity 12 is arranged in the shell body 1 and communicates with the mounting channel 11, and the panel contact end of the contact detection rod 2 is located in the limiting cavity 12, the panel contact end is arranged as an integral first ball 211, and the diameter of the first ball 211 is greater than the inner diameter of the mounting channel 11, and the first ball 211 is always located in the limiting cavity 12, and the limiting cavity 12 limits the overall contact detection rod 2 through the first ball 211, so that the contact detection rod 2 can freely slide in the axial direction under the action of the reset assembly 5, but will not be pulled out of the mounting channel 11.

[0041] With reference to Figure 4Furthermore, the outer casing 1 also has an installation cavity 13 communicating with the installation channel 11. The installation cavity 13 is located in the middle of the installation channel 11. The contact detection rod 2 passes through the installation cavity 13 and a second ball 222 is fixedly connected to its position within the installation cavity 13. The second ball 222 is integrally formed on the foot contact section 22 of the contact detection rod 2. The reset assembly 5 is disposed in the installation cavity 13 and acts on the second ball 222. In this embodiment, the reset assembly 5 includes a reset plate 51 and a reset spring 52. The reset plate 51 is disposed in the installation cavity 13. Inside, several through holes are provided for the contact detection rod 2 to pass through, and the diameter of the through holes is smaller than the diameter of the second ball 222, so that the reset plate 51 can effectively act on the second ball 222. The second ball 222 is located on the side of the reset plate 51 near the front end of the mounting channel 11. At least four reset springs 52 are provided and are located at the four corners of the reset plate 51 respectively. The reset springs 52 are fixedly connected between the reset plate 51 and the inner wall of the mounting cavity 13, and drive the reset plate 51 and the second ball 222 to move away from the contact sensing panel 3 with elastic force.

[0042] In this embodiment, one end of the reset spring 52 is fixedly connected to the reset plate 51, and the other end is fixedly connected to the side of the mounting cavity 13 near the contact sensing panel 3. A damping plate is fixedly connected to the side of the reset plate 51 away from the reset spring 52 to reduce the impact force during reset. When the contact detection rod 2 is pushed by the foot, the second ball 222 drives the reset plate 51 to compress the reset spring 52. When the pushing force disappears, the reset plate 51 and the contact detection rod 2 are reset under the elastic force of the reset spring 52. When the reset plate 51 is compressed to the limit, the distance between it and the contact sensing panel 3 is equal to the distance between the first ball 211 and the second ball 222, ensuring that the contact detection rod 2 just touches the contact sensing panel 3 when the reset spring 52 is compressed to the limit, avoiding too many contact detection rods 2 touching the contact sensing panel 3, which would interfere with the reading.

[0043] Reference Figure 3More specifically, in order to facilitate the maintenance of the measuring device, the shell body 1 comprises a first mounting member 14, a first annular connecting member 15, a second mounting member 16 and a second annular connecting member 17 arranged in sequence along the horizontal direction, the first mounting member 14 and the second mounting member 16 are detachably connected with the first annular connecting member 15, the inside of the first annular connecting member 15 is provided with a cavity to form an installation cavity 13, the second mounting member 16 and the contact sensing panel 3 are detachably connected with the second annular connecting member 17, the inside of the second annular connecting member 17 is provided with a cavity to form a limiting cavity 12, the first mounting member 14 and the second mounting member 16 are both solid bodies provided with a plurality of through holes, and the through holes on the same axis on the first mounting member 14 and the second mounting member 16 jointly form an installation channel 11. The side of the first mounting member 14 and the second mounting member 16 close to each other is integrally formed with a first stepped groove, the first annular connecting member 15 is sleeved outside the first stepped groove and fixed by screws, the side of the second mounting member 16 and the contact sensing panel 3 close to each other is integrally formed with a second stepped groove, the second annular connecting member 17 is sleeved outside the second stepped groove and fixed by screws, and after the first mounting member 14, the first annular connecting member 15, the second mounting member 16, the second annular connecting member 17 and the contact sensing panel 3 are connected in sequence, the overall assembly of the measuring device is completed, and the outer surface forms a continuous and smooth whole. The modular assembly structure of the measuring device makes the device easy to disassemble and reassemble, and facilitates later calibration and maintenance.

[0044] When the patient performs the heel height measurement, the patient stands back to the measuring device, and when the patient lifts the heel, the device is placed horizontally on the ground and then pushed slowly to the back ankle. Since the heel is the most protruding point of the sagittal plane, the contact detection rod 2 corresponding to the heel is first pushed to the back contact sensing panel 3, the contact sensing panel 3 immediately triggers a signal, and the digital display panel 4 generates a reading. The digital display panel 4 can instantaneously output the vertical distance between the contact point and the ground, which is the heel height of the ankle on that side. The device can complete the reading and automatically reset in an instant through multiple independent detection and elastic reset, support continuous multiple measurements, avoid errors caused by angle deviation and time delay in traditional ruler measurement or laser ranging, and provide objective and repeatable height data for ankle heel height measurement. As shown in FIG. Figure 7 When the measuring device is in use, the contact detection rod 2 at a height of 12 cm contacts the contact sensing panel 3 after being moved by the pushing force of the heel, at which time the digital display panel 4 displays a reading of 12 cm. It can be seen that the ankle heel height measurement this time is 12 cm, and according to the measurement data, the recovery degree diagnosis of the patient can be facilitated.

[0045] It is to be understood that the terms such as "include" and "may include" used in the present application indicate the presence of disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In the present application, terms such as "include" and / or "have" can be construed to denote a specific characteristic, number, operation, constituent element, component or a combination thereof, but cannot be construed to exclude the existence of or a possibility of addition of one or more other characteristics, numbers, operations, constituent elements, components or combinations thereof.

[0046] It should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0047] In addition, the terms "first", "second", etc. are used only for the purpose of description and cannot be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0048] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] Those skilled in the art will readily understand that the above description is only the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for measuring heel raise height after Achilles tendon rupture repair surgery, characterized in that, include: The outer shell body (1) has several installation channels (11) that are opened horizontally through its interior; A plurality of contact detection rods (2) are installed one-to-one in the mounting channel (11). One end of the contact detection rod (2) is located inside the outer shell body (1) as the panel contact end, and the other end is located outside the outer shell body (1) as the foot contact end (221). The axial direction of the contact detection rod (2) is the same as the layout direction of the mounting channel (11) and it can be moved along the axial direction. The contact sensing panel (3) is fixedly connected to the outer shell body (1) and located at the rear end of the mounting channel (11). When any of the contact detection rods (2) moves a certain distance to the rear end of the mounting channel (11), its panel contact end abuts against the contact sensing panel (3). A digital display panel (4) is disposed on the housing body (1) and / or the contact sensing panel (3) and is electrically connected to the contact sensing panel (3); Several contact detection rods (2) are densely arranged; when the heel is raised, the measuring device is pushed close to the ankle, and the contact detection rod (2) corresponding to the heel can be pushed to make displacement and contact the sensing panel (3). The contact sensing panel (3) triggers a signal, and the digital display panel (4) generates a reading. The digital display panel (4) can instantly output the vertical distance between the contact point and the ground.

2. The device for measuring heel raise height after Achilles tendon rupture repair surgery as described in claim 1, characterized in that, The outer shell body (1) has a limiting cavity (12) connected to the mounting channel (11) at the rear end of the inner part of the outer shell body (1). The panel contact end of the contact detection rod (2) is located in the limiting cavity (12). The panel contact end is set as a first ball (211), and the diameter of the first ball (211) is larger than the inner diameter of the mounting channel (11) to restrict the contact detection rod (2) from coming out.

3. The device for measuring heel raise height after Achilles tendon rupture repair surgery as described in claim 2, characterized in that, The measuring device also includes a reset assembly (5) for driving the contact detection rod (2) to move away from the contact sensing panel (3).

4. The device for measuring heel raise height after Achilles tendon rupture repair surgery as described in claim 3, characterized in that, The outer shell body (1) is further provided with an installation cavity (13) communicating with the installation channel (11). The contact detection rod (2) passes through the installation cavity (13) and is fixedly connected to a second ball (222) at the part located in the installation cavity (13). The reset component (5) is disposed in the installation cavity (13) and acts on the second ball (222).

5. A device for measuring heel raise height after Achilles tendon rupture repair surgery as described in claim 4, characterized in that, The reset assembly (5) includes a reset plate (51) and a reset spring (52). The reset plate (51) is located in the mounting cavity (13) and has several through holes for the contact detection rod (2) to pass through. The diameter of the through holes is smaller than the diameter of the second ball (222). The second ball (222) is located on the side of the reset plate (51) near the front end of the mounting channel (11). The reset spring (52) is fixedly connected between the reset plate (51) and the inner wall of the mounting cavity (13) and drives the reset plate (51) and the second ball (222) to move away from the contact sensing panel (3) with elastic force.

6. A device for measuring heel raise height after Achilles tendon rupture repair surgery as described in claim 4, characterized in that, The outer shell body (1) includes a first mounting member (14), a first annular connector (15), a second mounting member (16), and a second annular connector (17) arranged sequentially along the horizontal direction. The first mounting member (14) and the second mounting member (16) are detachably connected to the first annular connector (15). The interior of the first annular connector (15) is set as a cavity to form the mounting cavity (13). The second mounting member (16) and the contact sensing panel (3) are detachably connected to the second annular connector (17). The interior of the second annular connector (17) is set as a cavity to form the limiting cavity (12).

7. The device for measuring heel raise height after Achilles tendon rupture repair surgery as described in claim 6, characterized in that, The first mounting member (14) and the second mounting member (16) are provided with a first step groove on the side that is close to each other. The first annular connector (15) is sleeved on the outside of the first step groove. The second mounting member (16) and the contact sensing panel (3) are provided with a second step groove on the side that is close to each other. The second annular connector (17) is sleeved on the outside of the second step groove. After the first mounting member (14), the first annular connector (15), the second mounting member (16), the second annular connector (17) and the contact sensing panel (3) are connected in sequence, their outer surfaces form a continuous and flat whole.

8. A device for measuring heel raise height after Achilles tendon rupture repair surgery as described in claim 4, characterized in that, The contact detection rod (2) includes a panel contact section (21) and a foot contact section (22), which are detachably connected. The second ball (222) is disposed on the foot contact section (22).

9. A device for measuring heel raise height after Achilles tendon rupture repair surgery as described in claim 1, characterized in that, A buffer protective layer is provided on the contact surface of the contact sensing panel (3).

10. A device for measuring heel raise height after Achilles tendon rupture repair surgery as described in claim 1, characterized in that, The foot contact end (221) of the contact detection rod (2) is configured as a smooth round end.

Citation Information

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