Clinical leg stretching device for orthopedics department

By designing an adjustment and replacement mechanism for the orthopedic clinical leg stretching device, the problems of muscle atrophy and secondary injury in patients after surgery are solved, and safe and efficient leg stretching training is achieved, which is suitable for different recovery stages.

CN223429890UActive Publication Date: 2025-10-14HARBIN MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202422829796.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-10-14
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

In current orthopedic clinics, patients suffer from leg muscle atrophy after surgery. Existing training methods cannot effectively utilize the patient's own strength, resulting in slow recovery and the risk of secondary injury.

Method used

A leg stretching device for clinical orthopedic use was designed, which included an adjustment mechanism and a replacement mechanism. The adjustment mechanism was used to adjust the stretching force to prevent the sliding plate from rebounding, and the replacement mechanism was used to replace damaged parts to ensure safety and adaptability to different recovery stages.

Benefits of technology

It improves the safety and applicability of training, is suitable for different recovery stages, prevents secondary injuries, extends the service life of the device, and improves the training effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of orthopedic clinical leg stretching, and discloses an orthopedic clinical leg stretching device which comprises a stretching support, a seat is fixedly installed at the top of the stretching support, a fixing frame is fixedly installed at the top of the stretching support, and an adjusting mechanism is arranged at the top of the stretching support. A replacement mechanism is arranged at the top of the stretching support, the adjusting mechanism comprises an adjusting assembly and a stretching assembly, and the stretching assembly is arranged on the outer side of the adjusting assembly. The problem that the sliding plate rebounds rapidly can be prevented through assistance of the hand, it is guaranteed that the legs of the patient are not subjected to secondary injury, the safety of the device is improved, the distance between the sliding plate and the patient is adjusted, and then the stretching elastic force can be flexibly adjusted; therefore, the device is suitable for stretching exercises of the patient in different stages, and the practicability is greatly improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic clinical leg stretching, in particular to a leg stretching device for orthopedic clinical use. Background Art

[0002] There are many different rehabilitation treatments available in orthopedic clinics. Leg stretching can help smooth the coordination between leg ligaments, muscles, and joints, reducing the likelihood of injury. Existing postoperative leg stretching methods are divided into active stretching and passive stretching, with active stretching being the most common method used by patients.

[0003] After an orthopedic patient's leg is injured, the patient cannot exercise for a long time, which easily leads to leg muscle atrophy, thereby affecting the patient's normal walking. Therefore, the leg needs to be stretched. At present, when patients are given leg stretching training, most of them are assisted by medical staff or trained by electric assistive devices. This training method cannot enable patients to train through their own strength, and the training effect is poor, which in turn reduces the patient's recovery speed and has poor practicality. Therefore, it is necessary to improve an orthopedic clinical leg stretching device to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a leg stretching device for clinical orthopedic use to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a leg stretching device for clinical orthopedics, comprising a stretching bracket, a seat fixedly mounted on the top of the stretching bracket, a fixing bracket fixedly mounted on the top of the stretching bracket, an adjustment mechanism provided on the top of the stretching bracket, and a replacement mechanism provided on the top of the stretching bracket;

[0006] The adjusting mechanism includes an adjusting component and a stretching component, and the stretching component is arranged outside the adjusting component.

[0007] Preferably, the adjustment assembly includes a power box, which is fixedly mounted on the bottom of the stretching bracket, a bevel gear 1 is rotatably mounted inside the power box, a handwheel is fixedly mounted on the top of the bevel gear 1, a bevel gear 2 is rotatably mounted inside the power box, a threaded rod is fixedly mounted on the right side of the bevel gear 2, a sliding block is threadedly mounted on the outer side of the threaded rod, and a sliding frame is fixedly mounted on the top of the sliding block, so that the device is suitable for stretching exercises of patients at different stages, greatly improving its practicality.

[0008] Preferably, the bevel gear 1 is meshed with the bevel gear 2, and a slide groove is provided at the corresponding positions of the stretching bracket and the power box and the sliding block, and the sliding block is slidably installed inside the slide groove and fixedly installed with the sliding frame through the slide groove, so as to adjust the distance between the sliding plate and the patient, thereby being able to flexibly adjust the stretching elastic force.

[0009] Preferably, the stretching assembly includes a sliding plate, which is slidably mounted inside a sliding frame, a mounting plate 1 is provided inside the sliding plate, a spring 1 is fixedly mounted on the inner side of the mounting plate 1, a mounting plate 2 is fixedly mounted on the end of the spring 1 away from the mounting plate 1, a foot pedal is fixedly mounted on the outer side of the sliding plate, a pull rope is fixedly mounted on the right side of the foot pedal, a rotating wheel is rotatably mounted on the outside of the fixing frame, and a pull ring is fixedly mounted on the end of the pull rope away from the foot pedal to prevent the sliding plate from rebounding quickly, ensure that the patient's legs will not suffer secondary injuries, and improve the safety of the device.

[0010] Preferably, the second mounting plate is arranged inside the right side of the sliding frame, the pull rope is wrapped around the outside of the rotating wheel, and five groups of pull rings are provided, which are arranged at the end of the pull rope away from the pedal. With the assistance of the pull ring, the sliding plate is prevented from rebounding quickly.

[0011] Preferably, the replacement mechanism includes a second spring, which is fixedly mounted inside the first mounting plate, and the end of the second spring away from the first mounting plate is fixedly mounted to the slider, a pinch block is fixedly mounted on the top of the slider, and an insert block is fixedly mounted on the end of the slider away from the second spring, so as to prevent the device from having a poor exercise effect due to damage to the first spring and ensure the exercise effect.

[0012] Preferably, the slider and the insert block are slidably installed inside the mounting plate 1, the replacement mechanism is provided with two groups, and the other group is provided inside the mounting plate 2, slots are provided at the corresponding positions of the sliding plate and the insert block, and the insert block is inserted into the slot, so that the mounting plate 1, spring 1 and mounting plate 2 can be removed and replaced.

[0013] Compared with the existing technology, the utility model provides a leg stretching device for clinical orthopedics, which has the following beneficial effects:

[0014] 1. This orthopedic clinical leg stretching device, through the provided adjustment mechanism, compresses spring 1 during use, thereby achieving flexion and extension of the leg. The device can also be assisted by the hand to prevent the sliding plate from rebounding quickly, ensuring that the patient's legs will not suffer secondary injuries, thereby improving the safety of the device. By adjusting the distance between the sliding plate and the patient, the stretching elastic force can be flexibly adjusted, making the device suitable for stretching exercises at different stages of the patient, greatly improving its practicality.

[0015] 2. The orthopedic clinical leg stretching device has a replacement mechanism. During use, the mounting plate 1, spring 1 and mounting plate 2 can be removed and replaced to prevent poor exercise effect of the device due to damage to spring 1, thereby ensuring the exercise effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the adjustment mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the exploded structure of the replacement mechanism of the present invention.

[0020] In the figure: 1. stretching bracket; 2. adjustment mechanism; 21. adjustment assembly; 211. power box; 212. bevel gear 1; 213. hand wheel; 214. bevel gear 2; 215. threaded rod; 216. sliding block; 217. sliding frame; 22. stretching assembly; 221. sliding plate; 222. mounting plate 1; 223. spring 1; 224. mounting plate 2; 225. foot pedal; 226. pull rope; 227. rotating wheel; 228. pull ring; 3. replacement mechanism; 31. spring 2; 32. slider; 33. pinch block; 34. insert block; 4. seat; 5. fixing frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] Example 1:

[0024] See also Figure 1-2 The utility model provides a technical solution: a leg stretching device for clinical orthopedics, comprising a stretching bracket 1, a seat 4 fixedly installed on the top of the stretching bracket 1, a fixing bracket 5 fixedly installed on the top of the stretching bracket 1, an adjustment mechanism 2 provided on the top of the stretching bracket 1, and a replacement mechanism 3 provided on the top of the stretching bracket 1;

[0025] The adjusting mechanism 2 includes an adjusting component 21 and a stretching component 22 . The stretching component 22 is arranged outside the adjusting component 21 .

[0026] Furthermore, the adjustment component 21 includes a power box 211, which is fixedly installed at the bottom of the stretching bracket 1. A bevel gear 1 212 is rotatably installed inside the power box 211, and a handwheel 213 is fixedly installed on the top of the bevel gear 1 212. A bevel gear 2 214 is rotatably installed inside the power box 211, and a threaded rod 215 is fixedly installed on the right side of the bevel gear 214. A sliding block 216 is threadedly installed on the outer side of the threaded rod 215, and a sliding frame 217 is fixedly installed on the top of the sliding block 216, so that the device is suitable for stretching exercises of patients at different stages, greatly improving its practicality.

[0027] Furthermore, bevel gear 1 212 is meshed with bevel gear 2 214, and sliding grooves are provided at corresponding positions of the stretching bracket 1, the power box 211 and the sliding block 216, and the sliding block 216 is slidably installed inside the sliding groove and fixedly installed with the sliding frame 217 through the sliding groove, thereby adjusting the distance between the sliding plate 221 and the patient, and thus being able to flexibly adjust the stretching elastic force.

[0028] Furthermore, the stretching component 22 includes a sliding plate 221, which is slidably installed inside the sliding frame 217, and a mounting plate 222 is provided inside the sliding plate 221. A spring 223 is fixedly installed on the inner side of the mounting plate 222, and a mounting plate 224 is fixedly installed on the end of the spring 223 away from the mounting plate 222. A foot pedal 225 is fixedly installed on the outer side of the sliding plate 221, and a pull rope 226 is fixedly installed on the right side of the foot pedal 225. A rotating wheel 227 is rotatably installed on the outside of the fixing frame 5, and a pull ring 228 is fixedly installed on the end of the pull rope 226 away from the foot pedal 225 to prevent the sliding plate 221 from rebounding quickly, thereby ensuring that the patient's legs will not suffer secondary injuries and improving the safety of the device.

[0029] Furthermore, the second mounting plate 224 is arranged inside the right side of the sliding frame 217, the pull rope 226 is wrapped around the outside of the rotating wheel 227, and five groups of pull rings 228 are provided, which are arranged at the end of the pull rope 226 away from the pedal 225. With the assistance of the pull ring 228, the sliding plate 221 is prevented from rebounding quickly.

[0030] Embodiment 2:

[0031] See also Figure 3 , and combined with Example 1, it is further obtained that the replacement mechanism 3 includes a second spring 31, the second spring 31 is fixedly installed inside the mounting plate 1 222, the end of the second spring 31 away from the mounting plate 1 222 is fixedly installed with the slider 32, a pinch block 33 is fixedly installed on the top of the slider 32, and an insert block 34 is fixedly installed on the end of the slider 32 away from the second spring 31 to prevent the poor exercise effect of the device due to damage to the first spring 223, thereby ensuring the exercise effect.

[0032] Furthermore, the slider 32 and the insert block 34 are slidably installed inside the mounting plate 1 222. The replacement mechanism 3 is provided with two groups, and the other group is provided inside the mounting plate 224. Slots are provided at the corresponding positions of the sliding plate 221 and the insert block 34, and the insert block 34 is inserted into the slot. The mounting plate 1 222, the spring 1 223 and the mounting plate 2 224 can be removed and replaced.

[0033] In actual operation, when the device is used, the patient sits on the seat 4, places his feet on the outside of the footrest 225, holds the pull ring 228 with his hand, and pushes the footrest 225 hard, which drives the sliding plate 221 to slide inside the sliding frame 217, thereby squeezing the spring 1 223, thereby achieving the flexion and extension operation of the leg. The hand can be used to prevent the sliding plate 221 from rebounding quickly, ensuring that the patient's legs will not be injured again, thereby improving the safety of the device. Turn the hand wheel 213, the rotation of the hand wheel 213 drives the bevel gear 1 212 to rotate, and the rotation of the bevel gear 1 212 drives the bevel gear meshing with it. The second wheel 214 rotates, thereby rotating the threaded rod 215, causing the sliding frame 217 to move outside the threaded rod 215, thereby adjusting the distance between the sliding plate 221 and the patient, and thus being able to flexibly adjust the stretching elasticity, thereby being suitable for stretching exercises of patients at different stages, greatly improving its practicality. After repeated use, the spring 1 223 is damaged, and the pinching block 33 can be pinched inward. The pinching block 33 drives the inserting block 34 to disengage from the limit of the slot through the slider 32, and the mounting plate 1 222, spring 1 223 and mounting plate 2 224 can be removed and replaced, thereby preventing the device from having a poor exercise effect due to damage to the spring 1 223, thereby ensuring the exercise effect.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A leg stretching device for clinical orthopedics, comprising a stretching bracket (1), characterized in that: A seat (4) is fixedly mounted on the top of the stretching bracket (1), a fixing frame (5) is fixedly mounted on the top of the stretching bracket (1), an adjustment mechanism (2) is provided on the top of the stretching bracket (1), and a replacement mechanism (3) is provided on the top of the stretching bracket (1); The adjusting mechanism (2) comprises an adjusting component (21) and a stretching component (22), wherein the stretching component (22) is arranged outside the adjusting component (21).

2. The orthopedic clinical leg stretching device according to claim 1, characterized in that: The adjustment assembly (21) comprises a power box (211), the power box (211) being fixedly mounted on the bottom of the stretching bracket (1), a bevel gear 1 (212) being rotatably mounted inside the power box (211), a hand wheel (213) being fixedly mounted on the top of the bevel gear 1 (212), a bevel gear 2 (214) being rotatably mounted inside the power box (211), a threaded rod (215) being fixedly mounted on the right side of the bevel gear 2 (214), a sliding block (216) being threadedly mounted on the outer side of the threaded rod (215), and a sliding frame (217) being fixedly mounted on the top of the sliding block (216).

3. The orthopedic clinical leg stretching device according to claim 2, characterized in that: The bevel gear 1 (212) is meshed with the bevel gear 2 (214), and a slide groove is provided at corresponding positions of the stretching bracket (1), the power box (211) and the sliding block (216), and the sliding block (216) is slidably installed inside the slide groove and is fixedly installed with the sliding frame (217) through the slide groove.

4. The orthopedic clinical leg stretching device according to claim 2, characterized in that: The stretching assembly (22) includes a sliding plate (221), the sliding plate (221) is slidably mounted inside the sliding frame (217), a mounting plate 1 (222) is provided inside the sliding plate (221), a spring 1 (223) is fixedly mounted inside the mounting plate 1 (222), a mounting plate 2 (224) is fixedly mounted on the end of the spring 1 (223) away from the mounting plate 1 (222), a pedal (225) is fixedly mounted on the outside of the sliding plate (221), a pull rope (226) is fixedly mounted on the right side of the pedal (225), a rotating wheel (227) is rotatably mounted on the outside of the fixing frame (5), and a pull ring (228) is fixedly mounted on the end of the pull rope (226) away from the pedal (225).

5. The orthopedic clinical leg stretching device according to claim 4, characterized in that: The second mounting plate (224) is arranged inside the right side of the sliding frame (217), the pull rope (226) is wound around the outside of the rotating wheel (227), and the pull ring (228) is provided with five groups, which are arranged at one end of the pull rope (226) away from the pedal (225).

6. The orthopedic clinical leg stretching device according to claim 4, characterized in that: The replacement mechanism (3) includes a second spring (31), the second spring (31) is fixedly mounted inside the first mounting plate (222), the end of the second spring (31) away from the first mounting plate (222) is fixedly mounted to the slider (32), a pinch block (33) is fixedly mounted on the top of the slider (32), and an insert block (34) is fixedly mounted on the end of the slider (32) away from the second spring (31).

7. The orthopedic clinical leg stretching device according to claim 6, characterized in that: The slider (32) and the insert block (34) are slidably mounted inside the first mounting plate (222). The replacement mechanism (3) is provided with two groups, and the other group is provided inside the second mounting plate (224). Slots are provided at positions corresponding to the sliding plate (221) and the insert block (34), and the insert block (34) is inserted into the slots.