Power-assisted stretching orthosis for finger rehabilitation

Abstract

The invention discloses a power-assisted stretching orthosis for finger rehabilitation, and relates to the field of finger rehabilitation, the power-assisted stretching orthosis comprises a supporting block, the outer side of the supporting block is connected with five groups of elastic metal wires, the end part of each group of elastic metal wires is connected with a silica gel fingerstall, and the two sides of each silica gel fingerstall are respectively provided with a front fixing lantern ring and a silica gel edge sealing ring; the silica gel edge sealing ring is connected to the edge positions of the front fixing lantern ring and the silica gel edge sealing ring, a plurality of sets of air holes are formed in the inner walls of the front fixing lantern ring and the silica gel edge sealing ring, and two sets of connecting pieces are connected to the inner wall of the front fixing lantern ring. In the finger tendon recovery process, the silica gel fingerstall is connected to the finger in a sleeving mode through the front fixing lantern ring and the rear fixing lantern ring, through the elastic metal wires, when the proximal phalanx of the finger of a patient is bent and the finger cannot be reset completely, the finger is driven to reset through the elastic metal wires, and the middle phalanx of the finger of the patient is bent; and when the fingers cannot be reset, the fingers are driven to reset through the elastic sheets.

Description

Technical Field

[0001] The invention relates to the field of finger rehabilitation, in particular to an auxiliary extension orthosis for finger rehabilitation. Background Art

[0002] According to their functions, the tendons of the hand can be divided into extensor tendons and flexor tendons. There are 9 flexor tendons in total. Except for the thumb which has only one, the other four fingers each have one deep and one superficial tendon. The extensor tendons all originate from the distal end of the dorsal extensor muscles of the forearm, run subcutaneously on the back of the hand and fingers, and are located superficially. They are divided into radial and ulnar groups. The radial group is related to the movement of the thumb, and the ulnar group is related to the movement of the other four extensor fingers. When the hand tendons are injured (such as rupture, etc.), they will be treated and connected through surgery and other means. A long recovery time is required after the operation. During the recovery, different activities and training are needed to improve the recovery effect. During the training process, different orthotics will be used.

[0003] Existing orthoses usually adopt a fixed structure. The patient puts his hand into the device and drives the orthosis to bend by the patient himself. When the patient's hand cannot be reset, the pushing structure (such as cylinders, springs, etc.) in the orthosis drives the fingers to be reset, thereby realizing a training cycle. During use, it needs to be fixed in a specific position. If it is portable, the existing orthosis structure is too complicated (such as multiple sets of reset cylinders and joints), resulting in a large weight. Patients usually have undergone surgery and their arm strength is insufficient to support, so they cannot recover for a long time. In addition, the finger tendons have a large number of tendons. Different patients usually need to train different parts. During the rehabilitation process, existing orthoses usually adopt a fixed structure for rehabilitation, which can only rehabilitate the fingers as a whole, and cannot perform specialized training on different tendons. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide a power-assisted extension orthosis for finger rehabilitation to solve the technical problems of being inconvenient to carry and inconvenient to train specific tendons of fingers.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary extension orthosis for finger rehabilitation, comprising a support block, five groups of elastic metal wires are connected to the outside of the support block, the end of each group of elastic metal wires is connected to a silicone finger cuff, a front fixing ring and a silicone edge sealing ring are respectively installed on both sides of the silicone finger cuff, and the edges of the front fixing ring and the silicone edge sealing ring are connected to the silicone edge sealing ring, a plurality of groups of air holes are provided on the inner walls of the front fixing ring and the silicone edge sealing ring, two groups of connecting parts are connected to the inner wall of the front fixing ring, the front fixing ring is connected to the rear fixing ring through a group of connecting parts respectively, a fixing block is provided on the top of the front fixing ring, and an elastic sheet is installed inside the fixing block.

[0006] By adopting the above technical solution, it can be easily installed on the finger, and after installation, the silicone finger sleeve can reduce the discomfort of the patient's hand, and the elastic metal wire and elastic sheet can perform different exercises and recovery on the finger tendons.

[0007] The present invention is further configured such that five groups of mounting grooves are provided inside the support block, four groups of mounting grooves maintain the same orientation, one group of mounting grooves is oriented opposite to the other four groups, and the middle parts of the mounting grooves are all connected with threaded sleeves, the ends of the five groups of elastic metal wires are all threaded, and each group of elastic metal wires extends to the interior of the mounting groove through the threads, and the threaded sleeves are sleeved on the outside of the threads.

[0008] By adopting the above technical solution, different fingers of the patient can be limited and trained synchronously, and the position of the silicone finger cuff can be adjusted through the thread, so that it is convenient to install on different fingers.

[0009] The present invention is further configured such that the edge of the threaded sleeve extends to the outside of the support block, and when the threaded sleeve rotates, the thread moves inside the support block, thereby driving the elastic metal wire to move inside the support block.

[0010] By adopting the above technical solution, the elastic metal wire with threads can be easily driven to move inside the support block.

[0011] The present invention is further configured such that the inner diameter of the installation grooves on both sides of the threaded sleeve is greater than the diameter of the thread, and the diameter of the installation grooves decreases when they are close to the outer wall of the support block and fit with the outer wall of the elastic metal wire.

[0012] By adopting the above technical solution, it is convenient to limit the elastic metal wire through the support block, thereby reducing the deviation of the elastic metal wire.

[0013] The present invention is further configured such that the top end of the rear fixing ring is connected to a connecting block, the end of the elastic metal wire extends to the inside of the connecting block, and the elastic metal wire is fixedly connected to the silicone finger sleeve.

[0014] By adopting the above technical solution, it is convenient to connect the rear fixing ring with the elastic metal wire.

[0015] The present invention is further configured such that the connecting piece is a plurality of groups of protruding snap-fit ​​blocks, and the snap-fit ​​blocks match the shape of the air holes, and the silicone finger sleeves are plugged and snap-fitted with the air holes through the connecting piece, thereby fixing the front fixing ring and the rear fixing ring at both ends of the silicone finger sleeve.

[0016] By adopting the above technical solution, the silicone finger sleeve can be easily installed and the installation stability of the silicone finger sleeve can be improved.

[0017] The present invention is further configured such that the connecting piece is a groove on the inner wall of the silicone finger sleeve, a protruding ring is provided on the outer wall of the front fixing ring, and a protruding ring is also provided on the outer wall of the rear fixing ring, and the front fixing ring and the rear fixing ring are both rotatably connected to the silicone finger sleeve via the protruding ring.

[0018] By adopting the above technical solution, after the silicone finger sleeve is limited, the silicone finger sleeve can be driven to rotate between the front and rear fixed rings, thereby adjusting the angle of the elastic sheet.

[0019] In summary, the present invention mainly has the following beneficial effects:

[0020] 1. The silicone ring finger sleeve of the present invention can fit the finger through the silicone finger sleeve when it is put on the outside of the finger, so as to facilitate the bending of the finger. The silicone edge sealing ring can wrap the hard edges and corners of the front and rear fixing rings, reduce the squeezing of the finger skin, improve the patient's comfort, and effectively reduce the overall weight of the device. There is no need to use a complex structure to install it on the hand, which is convenient for the finger to return to its original position and easy to carry.

[0021] 2. The present invention can also, during the process of fully bending the finger, by providing a silicone finger sleeve and front and rear fixing rings, connect the silicone finger sleeve to the finger through the front and rear fixing rings, and by using an elastic metal wire, when the proximal phalanx of the patient's finger is bent and the finger cannot be completely reset, the finger can be driven to reset through the elastic metal wire, and when the middle phalanx of the patient's finger is bent and the finger cannot be reset, the finger can be driven to reset through the elastic sheet, and different positions of the finger can be reset in a specialized manner, thereby realizing the rehabilitation of different parts of the finger and improving the rehabilitation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the support block of the present invention;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure of the support block at center A;

[0025] Figure 4 This is a schematic diagram of the structure of the silicone finger sleeve of the present invention;

[0026] Figure 5 This is a schematic diagram of the explosion structure of the silicone finger sleeve of the present invention;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the silicone finger sleeve of the present invention;

[0028] Figure 7Schematic diagram of the cross-sectional structure of a silicone finger sleeve according to the second embodiment of the present invention.

[0029] In the figure: 1, support block; 101, threaded sleeve; 102, mounting groove; 2, elastic metal wire; 201, thread; 3, silicone finger sleeve; 301, front fixing ring; 302, rear fixing ring; 303, silicone edge sealing ring; 304, fixing block; 305, connecting block; 306, air vent; 307, connecting piece; 308, elastic sheet; 309, protruding ring. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] A finger rehabilitation extension orthosis, as shown in the figure, includes a support block 1, five groups of elastic metal wires 2 are connected to the outside of the support block 1, five groups of mounting grooves 102 are opened inside the support block 1, four groups of mounting grooves 102 maintain the same direction, one group of mounting grooves 102 is opposite to the other four groups, and the middle parts of the mounting grooves 102 are all connected to threaded sleeves 101, the ends of the five groups of elastic metal wires 2 are all provided with threads 201, and each group of elastic metal wires 2 extends to the inside of the mounting groove 102 through the threads 201, and the threaded sleeves 101 are sleeved on the threads 201. On the outside, the edge of the threaded sleeve 101 extends to the outside of the support block 1, and when the threaded sleeve 101 rotates, it drives the thread 201 to move inside the support block 1, thereby driving the elastic metal wire 2 to move inside the support block 1. The mounting groove 102 is located on both sides of the threaded sleeve 101. The inner diameter is larger than the diameter of the thread 201, and the diameter of the mounting groove 102 decreases when it is close to the outer wall of the support block 1, and fits with the outer wall of the elastic metal wire 2, so that the distance between the silicone finger sleeve 3 and the support block 1 can be easily adjusted, so as to facilitate the installation of fingers of different sizes. The ends of each group of elastic metal wires 2 They are all connected with a silicone finger sleeve 3, and a front fixing ring 301 and a silicone edge sealing ring 303 are respectively installed on both sides of the silicone finger sleeve 3, and the edges of the front fixing ring 301 and the silicone edge sealing ring 303 are connected with the silicone edge sealing ring 303, and the inner walls of the front fixing ring 301 and the silicone edge sealing ring 303 are provided with multiple groups of air holes 306, and the inner wall of the front fixing ring 301 is connected with two groups of connecting pieces 307, and the connecting pieces 307 are multiple groups of protruding snap-fit ​​blocks, and the snap-fit ​​blocks match the shape of the air holes 306, and the silicone finger sleeve 3 is plugged and snap-fitted with the air holes 306 through the connecting pieces 307. The silicone finger sleeve 3 can be conveniently installed on the front and rear fixing rings. When the tendon is rehabilitated, different tendon exercises can be performed by driving the silicone finger sleeve 3, so that the front fixing ring 301 and the rear fixing ring 302 are fixed to the two ends of the silicone finger sleeve 3. The silicone finger sleeve 3 is respectively connected to the front fixing ring 301 and the rear fixing ring 302 through a group of connecting pieces 307. A fixing block 304 is provided at the top of the front fixing ring 301. An elastic sheet 308 is installed inside the fixing block 304. After the finger is bent, the elastic sheet 308 can be used to drive the finger to reset.

[0033] See also Figure 5 and Figure 6 The top end of the rear fixing ring 302 is connected to a connecting block 305 , the end of the elastic metal wire 2 extends to the inside of the connecting block 305 , and the elastic metal wire 2 is fixedly connected to the silicone finger sleeve 3 .

[0034] See also Figure 7, which is a second embodiment of the present invention, includes structural adjustment of the connecting member 307, specifically, the connecting member 307 is a groove on the inner wall of the silicone finger sleeve 3, the outer wall of the front fixing ring 301 is provided with a protruding ring 309, and the outer wall of the rear fixing ring 302 is also provided with a protruding ring 309, the front fixing ring 301 and the rear fixing ring 302 are both rotatably connected to the silicone finger sleeve 3 through the protruding ring 309, and the silicone finger sleeve 3 can be installed while the angle of the silicone finger sleeve 3 can be adjusted. After the elastic metal wire 2 is adjusted, the angle of the silicone finger sleeve 3 is offset, resulting in the elastic sheet 308 not being aligned with the top of the interphalangeal joint. The angle of the elastic sheet 308 is adjusted to align with the interphalangeal joint, thereby improving the use efficiency, and the elastic sheet 308 can be rotated to rotate the elastic sheet 308 below the interphalangeal joint, so as to exercise the fingers at different angles, thereby improving the exercise effect.

[0035] When the orthosis is assembling the finger sleeve, first install the front and rear fixing rings to the two ends of the silicone finger sleeve 3 (the fixing ring can be customized according to the patient's finger size, and the material can be hard PC material), then install the silicone edge sealing ring 303 to the edges of the front and rear fixing rings, then insert multiple groups of elastic metal wires 2 with threads 201 into the mounting groove 102 in the support block 1, so that the threads 201 fit with the thread sleeve 101, and then rotate the thread sleeve 101, so that the elastic metal wire 2 is limited by the thread 201, and then the elastic metal wire 2 is installed with the rear fixing ring 302 through the connecting block 305 (the material of the connecting block 305 is consistent with that of the rear fixing ring, and the connecting block 305 can be softened by water bath heating or other methods, and then the elastic metal wire 2 is connected to the connecting block 305), so that the connection of multiple groups of silicone finger sleeves 3 is realized, and then according to the length of the patient's finger, the thread sleeve 101 is rotated to pull part of the elastic metal wire 2 into the support block 1, so as to limit the elastic metal wire 2 The length of the metal wire 2 is adjusted. After the adjustment is completed, the silicone finger sleeve 3 is sleeved on the patient's finger in sequence. The proximal phalanx of the patient's finger will drive the elastic metal wire 2 to bend. When the patient's tendon tries to be reset but cannot be reset, the elastic metal wire 2 drives the bent finger to straighten, which is convenient for subsequent bending of the finger, and thus multiple finger bending is achieved, thereby exercising and recovering the flexor tendon of the finger, etc. When rehabilitating the finger, the position of the silicone finger sleeve 3 can be adjusted according to the injury of the patient's finger, so that the silicone finger sleeve 3 is moved to the phalanx joint position, the front fixing ring 301 is sleeved on the outside of the middle phalanx, and the rear fixing ring 302 is sleeved on the outside of the proximal phalanx, which can be used for the bending process of the middle phalanx. The silicone finger sleeve 3 facilitates the complete bending of the middle phalanx, and if the middle phalanx cannot be restored after being completely bent (the superficial flexor tendon of the digitorum is damaged, adhered, etc.), the elastic sheet 308 is used to return the bent middle phalanx to its original position, thereby specializing in the exercise of the superficial flexor tendon of the digitorum, and improving the accuracy and effect of finger rehabilitation.

[0036] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A finger extension orthosis for rehabilitation, comprising a support block (1), Features: Five groups of elastic metal wires (2) are connected to the outer side of the support block (1), and the end of each group of elastic metal wires (2) is connected to a silicone finger sleeve (3). A front fixing ring (301) and a silicone edge sealing ring (303) are respectively installed on both sides of the silicone finger sleeve (3), and the edges of the front fixing ring (301) and the silicone edge sealing ring (303) are connected to the silicone edge sealing ring (303). The inner walls of the front fixing ring (301) and the silicone edge sealing ring (303) are provided with a plurality of groups of air holes (306). The inner wall of the front fixing ring (301) is connected with two groups of connecting pieces (307). The silicone finger sleeve (3) is connected to the front fixing ring (301) and the rear fixing ring (302) through a group of connecting pieces (307). A fixing block (304) is provided at the top of the front fixing ring (301), and an elastic sheet (308) is installed inside the fixing block (304).

2. The finger rehabilitation extension orthosis according to claim 1, Features: The support block (1) is provided with five groups of mounting grooves (102) inside, four groups of mounting grooves (102) maintain the same orientation, one group of mounting grooves (102) is oriented opposite to the other four groups, and the middle parts of the mounting grooves (102) are all connected with threaded sleeves (101), the ends of the five groups of elastic metal wires (2) are all provided with threads (201), and each group of elastic metal wires (2) extends to the inside of the mounting groove (102) through the threads (201), and the threaded sleeves (101) are sleeved on the outside of the threads (201).

3. The finger rehabilitation extension orthosis according to claim 2, Features: The edge of the threaded sleeve (101) extends to the outside of the support block (1), and when the threaded sleeve (101) rotates, it drives the thread (201) to move inside the support block (1), thereby driving the elastic metal wire (2) to move inside the support block (1).

4. The finger rehabilitation extension orthosis according to claim 2, Features: The installation groove (102) is located on both sides of the threaded sleeve (101) and has an inner diameter greater than the diameter of the thread (201). The diameter of the installation groove (102) decreases when it is close to the outer wall of the support block (1) and fits with the outer wall of the elastic metal wire (2).

5. The finger rehabilitation extension orthosis according to claim 1, Features: The top end of the rear fixing ring (302) is connected to a connecting block (305), the end of the elastic metal wire (2) extends to the inside of the connecting block (305), and the elastic metal wire (2) is fixedly connected to the silicone finger sleeve (3).

6. The finger rehabilitation extension orthosis according to claim 1, Features: The connecting piece (307) is a plurality of groups of protruding snap-fit ​​blocks, and the snap-fit ​​blocks match the shape of the air holes (306). The silicone finger sleeve (3) is plugged and snap-fitted with the air holes (306) through the connecting piece (307), thereby fixing the front fixing ring (301) and the rear fixing ring (302) at both ends of the silicone finger sleeve (3).

7. The finger rehabilitation extension orthosis according to claim 1, Features: The connecting member (307) is a groove on the inner wall of the silicone finger sleeve (3), the outer wall of the front fixing ring (301) is provided with a protruding ring (309), and the outer wall of the rear fixing ring (302) is also provided with a protruding ring (309), and the front fixing ring (301) and the rear fixing ring (302) are both rotatably connected to the silicone finger sleeve (3) through the protruding ring (309).

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