Thumb interphalangeal joint hyperextension auxiliary orthosis

Abstract

The utility model provides a thumb interphalangeal joint hyperextension auxiliary orthosis, which belongs to the technical field of medical instruments, and comprises a device main body, the device main body comprises a fingerstall, a longitudinal elastic pull rope and a magic tape; one end of the longitudinal elastic pull rope is arranged at the upper end of the finger pulp of the fingerstall, the longitudinal elastic pull rope downwards and longitudinally extends to the position above the metacarpophalangeal joint of the fingerstall, and the hook-and-loop fastener is arranged at the other end of the longitudinal elastic pull rope. The device can activate the body sensory receptor, the condition of low tension is improved to a certain extent, and the problem of joint hyperextension is fundamentally solved; personalized customization can be provided, and requirements of children of different age groups can be met; the material is light and thin, has elasticity and air holes, and does not hinder the joint motion range of the thumb required by daily activities; the manufacturing cost is low, and generally, families with requirements can bear the device.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a hyperextension auxiliary orthosis of the thumb interphalangeal joint. Background Art

[0002] Due to the change in the spectrum of children's diseases, children's diseases have gradually changed from cerebral palsy to some diseases characterized by comprehensive developmental delay, such as autism spectrum disorder, developmental coordination disorder and Down syndrome. Studies have shown that the prevalence of comprehensive developmental delay in children under 5 years old is 2%-3%. In addition to comprehensive developmental delay with different focuses in the early stage, these children often have hypotonia, which also leads to hyperextension of the interphalangeal joints of the thumbs, abnormal postures and pain during strength training or skill learning. In severe cases, it can even lead to limited participation. In the past, assistive devices for children's upper limbs and hands mainly presented the following types:

[0003] 1. Braking type: This type of assistive device is mainly used to fix the injured part after trauma to facilitate the repositioning and healing of the damaged limb. Its typical feature is that the injured part and its adjacent joints will be braked and cannot move. However, if a child has hyperextension of the joints, they cannot be braked for a long time, otherwise it will affect the child's normal development.

[0004] 2. Flexion inhibition mode type: This type of assistive device is mainly for children with cerebral palsy. Due to central nervous system damage, the flexor muscles of the upper limb joints of these children generally show high muscle tone, that is, flexion state. Therefore, this type of assistive device mainly achieves the treatment purpose through the principle of inhibiting flexion in the opposite direction. However, for the current mainstream clinical diseases - various neurodevelopmental disorders characterized by developmental delay, most of them show low muscle tone, and the range of motion of each joint is significantly greater than the normal range, which is completely opposite to the adaptive symptoms of this type of assistive device, and therefore it is not applicable.

[0005] Since previous hand function assistive devices were mostly for children with cerebral palsy, the starting point of their research and development was mostly focused on inhibiting spasms or limiting flexion patterns, etc., and there was no auxiliary orthosis for the current clinical hyperextension of the thumb interphalangeal joint. Therefore, it is very necessary to develop a device for auxiliary orthosis of the hyperextension of the thumb interphalangeal joint. Summary of the invention

[0006] The purpose of the utility model is to provide a thumb interphalangeal joint hyperextension auxiliary orthosis, which fills the market gap. At the same time, the material is light and thin, elastic, and has air holes. It does not hinder the joint activity of the thumb required for daily activities and can be used for daily wear. It can provide personalized customization and is suitable for children of different ages. At the same time, the cost is low and generally affordable for families in need.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A thumb interphalangeal joint hyperextension auxiliary orthosis, characterized in that it comprises a device body, the device body comprises: a finger sleeve, a longitudinal elastic pull rope, and a Velcro;

[0009] One end of the longitudinal elastic pull rope is arranged on the upper end of the fingertip, the longitudinal elastic pull rope extends longitudinally downward to above the metacarpophalangeal joint of the fingertip, and the other end of the longitudinal elastic pull rope is provided with the Velcro.

[0010] Furthermore, the other end of the longitudinal elastic pull cord is adhered to the finger sleeve through the Velcro.

[0011] Furthermore, the device body comprises: an annular fixing patch, which is arranged at the metacarpophalangeal joint of the finger sleeve and can fix the finger sleeve.

[0012] Furthermore, the device body includes: a fixing device, the fixing device is arranged at one end of the longitudinal elastic pull rope, and one end of the longitudinal elastic pull rope is fixed to the upper end of the fingertip through the fixing device.

[0013] Furthermore, the finger sleeve is provided with a plurality of ventilation holes.

[0014] Furthermore, the size of the finger sleeve is customized according to the size of the finger and is suitable for children of different ages.

[0015] Furthermore, the finger sleeve is made of elastic material, which can shrink and squeeze the finger accordingly when the finger moves.

[0016] Furthermore, the Velcro can freely adjust the sticking strength.

[0017] Advantages of the utility model:

[0018] The device proposed by the utility model is an auxiliary orthosis for hyperextension of the interphalangeal joint of the thumb, which can activate proprioceptive receptors, improve the situation of low tension to a certain extent, and fundamentally solve the problem of joint hyperextension; it can provide personalized customization and is suitable for the needs of children of different age groups; the material is light and thin, elastic, and has air holes, and does not hinder the joint activity of the thumb required for daily activities; the cost is low, and families in need can generally afford it. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] In the figure: 1. Finger sleeve, 2. Longitudinal elastic drawstring, 3. Velcro, 4. Ring fixing sticker, 5. Fixing device. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0022] like Figure 1 As shown, a hyperextension auxiliary orthosis for the interphalangeal joint of the thumb includes a device body, which includes: a finger sleeve 1, a longitudinal elastic pull rope 2, and a Velcro 3. One end of the longitudinal elastic pull rope 2 is arranged at the upper end of the finger pulp of the finger sleeve 1, and the longitudinal elastic pull rope 2 extends longitudinally downward to the upper part of the metacarpophalangeal joint of the finger sleeve 1, and the other end of the longitudinal elastic pull rope 2 is provided with the Velcro 3. The other end of the longitudinal elastic pull rope 2 is attached to the finger sleeve 1 through the Velcro 3, which is suitable for limiting the hyperextension of the thumb.

[0023] As a preferred embodiment of the utility model, the device body includes: an annular fixing patch 4, which is arranged at the metacarpophalangeal joint of the finger sleeve 1. The annular fixing patch 4 can fix the finger sleeve 1, and increase the stability of the metacarpophalangeal joint while fixing the entire finger sleeve 1.

[0024] As a preferred embodiment of the utility model, the device body includes: a fixing device 5, the fixing device 5 is arranged at one end of the longitudinal elastic pull rope 2, and one end of the longitudinal elastic pull rope 2 is fixed to the upper end of the fingertip 1 through the fixing device 5.

[0025] As a preferred embodiment of the present invention, the finger sleeve 1 is provided with a plurality of ventilation holes to improve the suitability of the finger sleeve for children to wear in daily activities.

[0026] As a preferred embodiment of the utility model, the size of the finger sleeve 1 is customized according to the size of the finger and is suitable for children of different ages.

[0027] As a preferred embodiment of the utility model, the material of the finger sleeve 1 is a retractable material, which can shrink and squeeze the finger accordingly when the finger moves, and can activate the proprioceptors to a certain extent, while not hindering the joint mobility of the thumb required for daily activities.

[0028] As a preferred embodiment of the present invention, the Velcro 3 can freely adjust the sticking strength.

[0029] The steps for using the device are as follows:

[0030] After the child wears the finger sleeve 1 on the thumb (the longitudinal elastic drawstring is located on the side of the finger pulp), the longitudinal elastic drawstring 2 is adjusted to limit the range of motion of the interphalangeal joint of the thumb. After finding the optimal tension through active flexion and extension of the thumb, the end of the longitudinal elastic drawstring is fixed on the Velcro 3, and then the annular fixing patch 4 is wrapped around the interphalangeal joint of the thumb for fixing.

[0031] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Those skilled in the art can still adjust the technical solutions recorded in the above embodiments, or replace some of the technical features by equivalents. Therefore, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalent technologies, the utility model is also intended to include these modifications and variations.

Claims

1. A thumb interphalangeal joint hyperextension auxiliary orthosis, characterized in that: The device comprises a device body, wherein the device body comprises: a finger sleeve (1), a longitudinal elastic pull rope (2), and a Velcro (3); One end of the longitudinal elastic pull cord (2) is arranged on the upper end of the fingertip of the finger sleeve (1), the longitudinal elastic pull cord (2) extends longitudinally downward to above the metacarpophalangeal joint of the finger sleeve (1), and the other end of the longitudinal elastic pull cord (2) is provided with the Velcro (3).

2. The thumb interphalangeal joint hyperextension auxiliary orthosis according to claim 1, characterized in that: The other end of the longitudinal elastic pull cord (2) is adhered to the finger sleeve (1) via the Velcro (3).

3. The thumb interphalangeal joint hyperextension auxiliary orthosis according to claim 2, characterized in that: The device body comprises: an annular fixing patch (4), the annular fixing patch (4) being arranged at the metacarpophalangeal joint of the finger sleeve (1), and the annular fixing patch (4) being capable of fixing the finger sleeve (1).

4. The thumb interphalangeal joint hyperextension auxiliary orthosis according to claim 3, characterized in that: The device body comprises: a fixing device (5), wherein the fixing device (5) is arranged at one end of the longitudinal elastic pull rope (2), and one end of the longitudinal elastic pull rope (2) is fixed to the upper end of the fingertip of the finger sleeve (1) through the fixing device (5).

5. The thumb interphalangeal joint hyperextension auxiliary orthosis according to claim 4, characterized in that: The finger sleeve (1) is provided with a plurality of ventilation holes.

6. The thumb interphalangeal joint hyperextension auxiliary orthosis according to claim 5, characterized in that: The size of the finger sleeve (1) is customized according to the size of the finger and is suitable for children of different ages.

7. The thumb interphalangeal joint hyperextension auxiliary orthosis according to claim 6, characterized in that: The finger sleeve (1) is made of elastic material, which can shrink and squeeze the finger accordingly when the finger moves.

8. The thumb interphalangeal joint hyperextension auxiliary orthosis according to claim 7, characterized in that: The Velcro (3) can freely adjust the sticking strength.

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