Novel powered dynamic lower extremity medical immobilizer

Abstract

The utility model discloses a novel power-assisted dynamic lower limbs medical fixator, including leg support part, foot support part and buffer reset rod, leg support part includes upper half surrounding part and two upper connecting arms connected in the two sides of upper half surrounding part, foot support part includes lower half surrounding part and two lower connecting arms connected in the two sides of lower half surrounding part, and two lower connecting arms correspond with two upper connecting arms one to one, and corresponding upper connecting arm and lower connecting arm are rotatably connected, buffer reset rod connects upper half surrounding part and lower half surrounding part, and buffer reset rod is hydraulic pressure rod or gas spring. The novel power-assisted dynamic lower limbs medical fixator has novel structure, and when the sole appears to droop after the patient of recovery period wears, buffer reset rod can provide an upward lifting force for lower half surrounding part, thereby assisting the foot back of patient, and it is helpful for the patient to recover better, and due to the pulling of buffer reset rod, the risk of secondary injury of ankle joint of patient is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical rehabilitation equipment technology, and in particular to a novel assisted dynamic lower limb medical fixation device. Background Technology

[0002] Following ankle injuries and some surgeries, plaster casts or lower limb immobilizers are generally required to immobilize the patient's lower limbs. However, plaster casts are relatively bulky and cannot be adjusted later, hindering subsequent observation of the injured area and the implementation of treatment plans. Lower limb immobilizers typically consist of a fixed leg support and a foot support. The leg support is strapped to the patient's lower leg, and the foot support is strapped to the patient's foot. While lower limb immobilizers are easier for patients to wear than plaster casts, the fixed relative positions of the leg and foot supports prevent the patient's foot from rotating relative to the lower leg (i.e., the ankle joint cannot move), which is detrimental to later rehabilitation. Conversely, if the foot support is directly connected to the leg support for rotation, the lower limb immobilizer fails to effectively immobilize the patient's foot, hindering recovery. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a novel assisted dynamic lower limb medical fixator that can assist patients in foot movement to help them recover better.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a novel assisted dynamic lower limb medical fixator, comprising:

[0005] A leg support portion, the leg support portion including an upper half enclosure portion and two upper connecting arms connected to both sides of the upper half enclosure portion;

[0006] The foot support includes a lower half-enclosing part and two lower connecting arms connected to both sides of the lower half-enclosing part. The two lower connecting arms correspond one-to-one with the two upper connecting arms, and the corresponding upper connecting arms are rotatably connected to the lower connecting arms.

[0007] A buffer reset rod, which connects the upper half of the enclosure and the lower half of the enclosure, is a hydraulic rod or a gas spring.

[0008] In one embodiment, the system further includes a rotary motor and a planetary gear transmission mechanism. The rotary motor is located at the connection between the upper connecting arm and the lower connecting arm. The rotary motor is fixed on the lower connecting arm and connected to the planetary gear transmission mechanism, which is connected to the upper connecting arm. Alternatively, the rotary motor is fixed on the upper connecting arm and connected to the planetary gear transmission mechanism, which is connected to the lower connecting arm.

[0009] In one embodiment, the drive angle range of the rotary motor is ±45°.

[0010] In one embodiment, the driving angle range of the rotary motor is ±30°.

[0011] In one embodiment, the system further includes a battery and a controller, the controller being electrically connected to both the battery and the rotary motor, and the controller being used to control the operation of the rotary motor.

[0012] In one embodiment, a lower breathable pad is provided on the inner side of the lower half of the enclosure.

[0013] In one embodiment, an upper breathable pad is provided on the inner side of the upper half of the enclosure.

[0014] In one embodiment, the upper half of the enclosure is provided with a plurality of ventilation holes.

[0015] In one embodiment, an air duct plate is provided on the outer side of the upper half enclosure, and an air duct is formed between the air duct plate and the upper half enclosure. At least one end of the air duct is connected to the outside atmosphere, and a fan is provided on the air duct plate.

[0016] In one embodiment, the buffer reset rod is connected to the air duct plate to indirectly connect to the upper half of the enclosure.

[0017] The beneficial effects of this utility model are as follows: This novel assisted dynamic lower limb medical fixator has a novel structure. When a patient in the rehabilitation period wears it and the foot droops, the buffer return rod can provide an upward lifting force to the lower half of the enclosure, thereby assisting the patient's foot to return to its original position. The patient's foot can move to a certain extent, promoting blood circulation in the ankle joint area and helping the patient to recover better. Moreover, due to the pulling of the buffer return rod, this novel assisted dynamic lower limb medical fixator can still play the role of fixing the patient's foot and lower limb, reducing the risk of secondary ankle injury. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the novel assisted dynamic lower limb medical fixation device according to Embodiment 1 of this utility model.

[0020] Explanation of icon numbers:

[0021] 1. Leg support section; 11. Upper half-coverage section; 111. Ventilation holes; 12. Upper connecting arm; 13. Upper breathable pad;

[0022] 2. Foot support section; 21. Lower half-coverage section; 22. Lower connecting arm; 23. Lower breathable pad;

[0023] 3. Buffer reset rod;

[0024] 4. Rotary motor;

[0025] 5. Planetary gear transmission mechanism;

[0026] 6. Spring pad structure; 61. Spring; 62. Base plate;

[0027] 7. Air duct panel;

[0028] 8. Fan. Detailed Implementation

[0029] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0033] Furthermore, if the meaning of "and / or" appears throughout the text, it refers to three parallel solutions. For example, "and / or" includes solution 1, solution 2, and solution 3, which simultaneously satisfy the above conditions. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] Example 1

[0036] Please refer to Figure 1 The first embodiment of this utility model is as follows: a novel assisted dynamic lower limb medical fixator, including a leg support part 1, a foot support part 2, and a buffer reset rod 3. The leg support part 1 includes an upper half-enclosing part 11 and two upper connecting arms 12 connected to both sides of the upper half-enclosing part 11. The foot support part 2 includes a lower half-enclosing part 21 and two lower connecting arms 22 connected to both sides of the lower half-enclosing part 21. The two lower connecting arms 22 correspond one-to-one with the two upper connecting arms 12, and the corresponding upper connecting arms 12 are rotatably connected to the lower connecting arms 22. The buffer reset rod 3 connects the upper half-enclosing part 11 and the lower half-enclosing part 21. The buffer reset rod 3 is a hydraulic rod or a gas spring 61.

[0037] For ease of processing and production, it is preferable that the upper half-enclosing part 11 and the two upper connecting arms 12 are integrally formed into a single structure. Similarly, the lower half-enclosing part 21 and the two lower connecting arms 22 are integrally formed into a single structure.

[0038] The upper half of the enclosure 11 has upper strap holes (not shown in the figure) on both sides, through which a first strap (not shown in the figure) is threaded. The lower limb support is fixed to the patient's calf by the cooperation of the first strap and the upper half of the enclosure 11. The lower half of the enclosure 21 has lower strap holes (not shown in the figure) on both sides, through which a second strap (not shown in the figure) is threaded. The foot support is fixed to the patient's foot by the cooperation of the second strap and the lower half of the enclosure 21.

[0039] To better facilitate patient rehabilitation, the novel assisted dynamic lower limb medical fixator may optionally include a rotary motor 4 and a planetary gear transmission mechanism 5. The rotary motor 4 is located at the connection between the upper connecting arm 12 and the lower connecting arm 22. The rotary motor 4 is fixed to the lower connecting arm 22 and connected to the planetary gear transmission mechanism 5, which is connected to the upper connecting arm 12. Alternatively, the rotary motor 4 is fixed to the upper connecting arm 12 and connected to the planetary gear transmission mechanism 5, which is connected to the lower connecting arm 22.

[0040] When the rotary motor 4 is working, it drives the planetary gear transmission mechanism 5 to rotate relative to the upper connecting arm 12 and the lower connecting arm 22. This causes the lower leg and foot of the patient wearing the new assisted dynamic lower limb medical fixation device to rotate relative to each other. In other words, without the patient needing to consciously control it, the new assisted dynamic lower limb medical fixation device can actively assist the patient in foot movement, thus better supporting the patient's rehabilitation. The planetary gear transmission mechanism 5 has the advantages of small size, light weight, compact structure, smooth movement, and strong resistance to impact and vibration.

[0041] The driving angle range of the rotary motor 4 is ±45°, meaning that the foot support 2 can only rotate within a limited angle range relative to the leg support 1. This effectively avoids secondary injury to the patient caused by the novel assisted dynamic lower limb medical fixation device. Furthermore, the driving angle range of the rotary motor 4 is ±30°. When the patient is in the early stage of rehabilitation, the rotary motor 4 maintains a smaller driving angle range, further minimizing the risk of injury. In other words, in actual use, the driving angle range of the rotary motor 4 can be adjusted according to the patient's rehabilitation progress.

[0042] The novel assisted dynamic lower limb medical fixation device also includes a battery and a controller (not shown in the figure). The controller is electrically connected to the battery and the rotary motor 4 respectively. The battery is used to power the controller, and the controller is used to control the operation of the rotary motor 4. Specifically, the controller includes a main control board, which has a microprocessor unit (MCU) and a memory unit. The memory unit stores a program. When the rotary motor 4 executes the program, the lower connecting arm 22 reciprocates at a uniform speed relative to the upper connecting arm 12 under the driving action of the rotary motor 4.

[0043] The battery and the controller can be mounted on the leg support 1 or externally connected, depending on actual needs.

[0044] To improve patient comfort, the lower half of the enclosure 21 is provided with a lower breathable pad 23 on the inside, and the upper half of the enclosure 11 is provided with an upper breathable pad 13 on the inside.

[0045] To further improve patient comfort, the lower half of the enclosure 21 may optionally have a spring pad structure 6 on its bottom side. The spring pad structure 6 includes a spring 61 and a base plate 62, with the spring 61 connecting the base plate 62 to the lower half of the enclosure 21.

[0046] In this embodiment, the upper half of the enclosure 11 is provided with a plurality of ventilation holes 111.

[0047] To improve the ventilation of the leg support 1 and make it more comfortable for the patient, in this embodiment, an air duct plate 7 is provided on the outer side of the upper half of the enclosure 11. An air duct is formed between the air duct plate 7 and the upper half of the enclosure 11, and at least one end of the air duct is connected to the outside atmosphere. A fan 8 is provided on the air duct plate 7. It is easy to understand that the air flowing in the air duct passes through the ventilation holes 111 and contacts the patient's lower leg skin through the upper breathable pad 13. In the actual product, the fan 8 can be controlled by the controller.

[0048] In this embodiment, the buffer reset rod 3 is connected to the air duct plate 7 to indirectly connect to the upper half of the enclosure 11.

[0049] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A novel assisted dynamic lower limb medical fixation device, characterized in that: include A leg support portion, the leg support portion including an upper half enclosure portion and two upper connecting arms connected to both sides of the upper half enclosure portion; The foot support includes a lower half-enclosing part and two lower connecting arms connected to both sides of the lower half-enclosing part. The two lower connecting arms correspond one-to-one with the two upper connecting arms, and the corresponding upper connecting arms are rotatably connected to the lower connecting arms. A buffer reset rod, which connects the upper half of the enclosure and the lower half of the enclosure, is a hydraulic rod or a gas spring.

2. The novel assisted dynamic lower limb medical fixator according to claim 1, characterized in that: It also includes a rotary motor and a planetary gear transmission mechanism. The rotary motor is located at the connection between the upper connecting arm and the lower connecting arm. The rotary motor is fixed on the lower connecting arm and connected to the planetary gear transmission mechanism, and the planetary gear transmission mechanism is connected to the upper connecting arm. Alternatively, the rotary motor is fixed on the upper connecting arm and connected to the planetary gear transmission mechanism, and the planetary gear transmission mechanism is connected to the lower connecting arm.

3. The novel assisted dynamic lower limb medical fixator according to claim 2, characterized in that: The driving angle range of the rotary motor is ±45°.

4. The novel assisted dynamic lower limb medical fixator according to claim 3, characterized in that: The driving angle range of the rotary motor is ±30°.

5. The novel assisted dynamic lower limb medical fixator according to claim 2, characterized in that: It also includes a battery and a controller, the controller being electrically connected to both the battery and the rotating motor, and the controller being used to control the operation of the rotating motor.

6. The novel assisted dynamic lower limb medical fixator according to claim 1, characterized in that: The lower half of the enclosure is provided with a breathable protective pad on the inner side.

7. The novel assisted dynamic lower limb medical fixator according to claim 1, characterized in that: The inner side of the upper half of the enclosure is provided with an upper breathable pad.

8. The novel assisted dynamic lower limb medical fixator according to claim 7, characterized in that: The upper half of the enclosure is provided with multiple ventilation holes.

9. The novel assisted dynamic lower limb medical fixator according to claim 8, characterized in that: An air duct plate is provided on the outer side of the upper half of the enclosure, and an air duct is formed between the air duct plate and the upper half of the enclosure. At least one end of the air duct is connected to the outside atmosphere, and a fan is provided on the air duct plate.

10. The novel assisted dynamic lower limb medical fixator according to claim 9, characterized in that: The buffer reset rod is connected to the air duct plate to indirectly connect to the upper half of the enclosure.

Images