Finger flexor tendon rupture rehabilitation orthosis and guiding method

Abstract

The invention relates to the technical field of medical rehabilitation devices, in particular to a finger flexor tendon rupture rehabilitation orthosis and a guiding method.The finger flexor tendon rupture rehabilitation orthosis comprises a line body controller and a telescopic line body, and the line body controller is used for controlling extension or contraction of the telescopic line body; the finger protection device further comprises knuckle protectors, and the knuckle protectors are fixed to the fingers and used for protecting the knuckles of the fingers. One end of each telescopic line body is arranged in the line body controller, and the other end of each telescopic line body is fixedly connected with the corresponding knuckle protector; the line body controller is fixed to the arm, and when the telescopic line body is in a static state, the positions of the knuckle protector and the line body controller are fixed, so that the fingers, the palm and the arm form a fixed posture; by arranging a line body controller, a telescopic line body, a knuckle protection tool and a limiting mechanism, a finger posture fixing device and a rehabilitation corrector are fused into an integrated structure, the situation that a patient needs to detach the fixing device when doing rehabilitation exercise is avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical rehabilitation devices, and in particular to a rehabilitation orthosis for ruptured finger flexor tendons and a guiding method. Background Art

[0002] Hand tendon injuries are mostly open, with more traumatic factors such as cutting, as well as electric saw injuries, crush injuries, etc. Most of them are caused by tendon rupture and cause corresponding symptoms.

[0003] Finger flexor tendon rehabilitation is divided into three stages in terms of time: the early stage, generally 0-4 weeks, the middle stage, generally 4-6 weeks, and the late stage, 6-12 weeks. It should be noted that both the early and middle stages require wearing correctors, and the correctors fix the posture: when the wrist is flexed 20-30°, the metacarpophalangeal joint is flexed 40-50°, and the interphalangeal joint is fully extended. The rehabilitation movements in the early stage are active finger bending movements, which bend the fingers into the palm and maintain them for 1-2 seconds.

[0004] At present, in the prior art, the auxiliary equipment used for rehabilitation movements in the early stage generally adopts rubber bands. During training, one end of the rubber band is fixed between the fingers, and the other end is fixed with a pin on the flexion side of the forearm, on the dressing or wristband at the navicular bone, and then the finger bending exercise is actively performed. The fingers need to be tied with rubber bands before each rehabilitation training, and the rubber bands need to be removed after the training, and the help of others is required, which is more inconvenient to use.

[0005] After searching, the Chinese patent application number 201610514074.6 discloses a finger flexor tendon rupture rehabilitation orthosis, which belongs to the field of medical machinery technology, including a spring elastic trainer and a back of hand protection orthosis, the spring elastic trainer is arranged on the palm surface, the back of hand protection orthosis is arranged on the back of the hand, the spring elastic trainer includes a fingertip fixing belt, a fixing strap, a tension positioning button, a traction string, a wrist strap and a power device, the tension positioning button is used to limit the traction string, The power device includes a knob, a power spring, a concentric shaft and a power spring box. The power spring drives the traction string to move. The back of the hand protection orthosis is composed of a hand back plate and a forearm back plate. An angle of 120° to 180° is set between the hand back plate and the forearm back plate. The above patent has the following shortcomings: the angle of the back of the hand protection orthosis is fixed and cannot be adjusted at any time, and the spring elastic trainer needs to be removed after the rehabilitation movement is completed, and then the corrector needs to be installed to maintain the posture of the fingers and palms, and the use process is cumbersome.

[0006] The purpose of the invention of this application is to solve the problem of multiple replacement of correctors between finger-palm posture fixation and rehabilitation movements in the early rehabilitation stage of finger flexor tendon rupture. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides a finger flexor tendon rupture rehabilitation orthosis and a guiding method, which can effectively solve the existing problems.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a rehabilitation orthosis for ruptured flexor tendons of fingers, comprising a wire controller and a telescopic wire, wherein the wire controller is used to control the extension or contraction of the telescopic wire; and also comprising a knuckle protector, wherein the knuckle protector forms a fixed relationship with the finger and is used to protect the finger knuckles; one end of the telescopic wire is arranged inside the wire controller, and the other end of the telescopic wire is fixedly connected to the knuckle protector; the wire controller is fixed to the arm; when the telescopic wire is in a stationary state, the positions of the knuckle protector and the wire controller are fixed so that the fingers, palm and arm form a fixed posture; when the telescopic wire is in a state of extension or contraction, the knuckle protector moves based on the position of the wire controller so as to assist the rehabilitation movement of the finger.

[0009] Furthermore, the knuckle protector includes at least two protectors, namely a first protector and a second protector, the first protector is provided with a connecting outer wheel at the bottom, the second protector is provided with a connecting inner wheel at the bottom, the connecting outer wheel is rotatably connected to the connecting inner wheel; the connecting outer wheel and the connecting inner wheel are both constructed as an annular structure with a hole in the middle.

[0010] Furthermore, a raised outer ring is provided on the inner side of the connecting outer wheel, and a positioning rod is provided on the side of the raised outer ring facing the hole of the connecting outer wheel; a positioning ring is provided on the inner side of the connecting inner wheel, and a notch is provided on the positioning ring; the raised outer ring rotates on the inner side of the connecting inner wheel, the positioning ring rotates on the inner side of the connecting outer wheel, and the positioning rod moves in the notch of the positioning ring.

[0011] Furthermore, it also includes a limiting mechanism for adjusting the rotation angle between two adjacent knuckle protectors; the limiting mechanism includes a limiting plate and a limiting screw, one side of the limiting plate is fixedly connected to one side of the connecting inner wheel by a screw, one end of the limiting plate is fixedly connected to a limiting cylinder, a thread groove is provided inside the limiting cylinder, and the external thread on the limiting screw fits with the thread groove inside the limiting cylinder.

[0012] Furthermore, a circular groove is processed inside one side of the limit screw, a fixed rack is arranged at the notch of the circular groove of the limit screw, an extrusion push rod is slidably connected inside the circular groove of the limit screw, square blocks are arranged around the extrusion push rod, a linkage push rod is arranged at the bottom of the extrusion push rod, triangular blocks are arranged around the upper part of the linkage push rod, telescopic springs are arranged around the lower part of the linkage push rod, and the bottom end of the linkage push rod is connected to a rotating connecting rod through a rotating shaft; a supporting connecting rod is connected to a supporting connecting rod at the bottom of the circular groove of the limit screw through a rotating shaft, and the rotating connecting rod is sleeved on the supporting connecting rod.

[0013] Furthermore, a limiting groove is processed on one side of the circular groove of the limiting screw, and the limiting groove and the limiting hole and the notch of the positioning ring are connected to each other; when the extrusion push rod moves toward the inside of the circular groove of the limiting screw, the connection between the rotating connecting rod and the supporting connecting rod moves toward the outside of the limiting hole, and when the extrusion push rod moves toward the outside of the circular groove of the limiting screw, the connection between the rotating connecting rod and the supporting connecting rod moves toward the inside of the limiting hole.

[0014] Furthermore, a screw handle is fixedly connected to the top end of the limiting screw, an anti-touch baffle is fixedly connected to one side of the screw handle, and the anti-touch baffle is located at the central axis of the extrusion push rod.

[0015] Furthermore, an angle engraved disk is provided on the outer side of the connecting outer wheel; and the angle of the notch on the positioning ring is 90°.

[0016] Furthermore, each of the knuckle protectors is provided with a through hole at the top, and a fastening bolt is also provided at the top of the protector.

[0017] A method for guiding a rehabilitation orthosis for a ruptured finger flexor tendon, comprising: S1: Tie the wire controller to the patient's arm, tie the knuckle protector to the patient's finger, and then fix the knuckle protector and the wire controller by retracting the wire; S2: Use screws to fix the limit plate on the inner wheel of the connection, and then screw the limit screw into the limit cylinder; fix the patient's arm posture and proceed to S3, and perform rehabilitation exercises on the patient and proceed to S4; S3: Rotate the screw handle to make the anti-touch baffle point to the starting point of the angle scale plate, and extend the telescopic wire through the wire controller to make the patient's wrist flex 20-30° and the metacarpophalangeal joint flex 40-50°; S4: Rotate the screw handle so that the reading of the angle scale disk pointing to the anti-touch baffle is 15°, and the patient's fingers make a bending movement. At this time, the wire controller controls the telescopic wire to extend and retract to assist in rehabilitation. Repeat 5 times as a group, and do two groups. Then continue to rotate the screw handle so that the reading of the angle scale disk pointing to the anti-touch baffle increases by 15°, that is, 30°. The patient's fingers make a bending movement. At this time, the wire controller controls the telescopic wire to extend and retract to assist in rehabilitation. Repeat 5 times as a group, and do two groups. Repeat the above operations until the patient can no longer persist or the reading of the angle scale disk pointing to the anti-touch baffle is 90°.

[0018] Beneficial Effects Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects: By setting up a wire controller, a telescopic wire, a knuckle protector and a limit mechanism, the finger posture fixing device and the rehabilitation corrector are integrated into an integrated structure, so that the patient does not need to remove the fixing device when doing rehabilitation exercises, thereby improving the practicality of the device; The knuckle guard of the device is grouped and segmented, which can protect and fix the patient's designated fingers, while other uninjured fingers will not be affected in their normal life, thus improving the flexibility of the device; The device limits the rotation angle of the knuckle protector through a limit mechanism, and uses a linear controller to assist the patient in doing rehabilitation exercises. By incrementally increasing the rotation angle of the patient's finger knuckles, on the one hand, it can prevent the patient from excessive exercise and cause finger injuries, and on the other hand, it can help the patient recover to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the finger flexor tendon rupture rehabilitation orthosis of the present invention; Figure 2 It is a schematic structural diagram of the knuckle protector of the present invention; Figure 3 It is a schematic diagram of the explosion structure of the knuckle protector of the present invention; Figure 4 It is a schematic diagram of the bonding side structure of the connected outer wheel and the connected inner wheel of the present invention; Figure 5 It is a structural schematic diagram of the limiting mechanism of the present invention; Figure 6It is a schematic diagram of the explosion structure of the limiting mechanism of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the limiting screw of the present invention; Figure 8 It is a schematic cross-sectional structure diagram of the limiting mechanism of the present invention.

[0021] Reference numerals 100-line controller; 200- telescopic line body; 300-knuckle guard, 301-through hole, 302-fastening bolt, 303-fastening finger strap, 310-first guard, 311-connecting outer wheel, 312-angle engraved disk, 313-convex outer ring, 314-positioning support rod, 320-second guard, 321-connecting inner wheel, 322-recessed inner ring, 323-positioning ring, 330-third guard; 400-limiting mechanism, 410-limiting plate, 411-limiting cylinder, 412-limiting hole, 420-limiting screw, 421-screw handle, 422-limiting groove, 423-extrusion push rod, 424-linkage push rod, 425-rotating connecting rod, 426-support connecting rod, 427-telescopic spring, 428-fixed rack. DETAILED DESCRIPTION

[0022] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0023] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0024] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0025] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0026] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0027] The present invention will be further described below in conjunction with the embodiments.

[0028] Example: A rehabilitation orthosis for ruptured finger flexor tendons, such as Figure 1-8 As shown, it includes a line controller 100 and a telescopic line 200. The telescopic line 200 is made of nylon rope and is coated with lubricating oil on the outside to prevent the telescopic line 200 from rubbing on the skin and causing damage. The line controller 100 is used to control the extension or contraction of the telescopic line 200. Specifically, a motor and a roller are provided inside the line controller 100, and the roller is bound to the telescopic line 200, so that the extension and contraction of the telescopic line 200 can be controlled by manipulating the line controller 100. A strap is also provided at the bottom of the line controller 100, so that the line controller 100 can be bound to the patient's arm, which is convenient for the patient to carry. The knuckle protector 300 forms a fixed relationship with the finger and is used to protect the finger knuckles; according to the protection of different fingers of the patient, the knuckle protector 300 is divided into two protectors and three protectors. For the injured thumb, the knuckle protector 300 with two protectors is used, and for other fingers, the knuckle protector 300 with three protectors is needed, which are the first protector 310, the second protector 320 and the third protector 330. The first protector 310, the second protector 320 and the third protector 330 are all provided with a fastening finger belt 303 inside to fix the protector to the knuckles of the finger, so as to facilitate the subsequent driving of the bending thereof. It is worth noting that for special cases, such as finger amputation, For a limb, a knuckle protector 300 of a protective gear can be used alone. In this case, the bending of the knuckles of the fingers can be ignored. It should be noted that different schemes are selected to formulate orthotics according to the different injured fingers and the number of injured fingers of the patient, so that the product has a wide range of applications. A through hole 301 is processed on the top of each protector in the knuckle protector 300, and a fastening bolt 302 is also processed on the top of the protector. The through hole 301 is used to pass the telescopic wire body 200, and the fastening bolt 302 is used to fix the telescopic wire body 200 in the current protector. The fastening bolt 302 allows the rotated protectors to form a stable relationship, further improving the practicality of the device. One end of the telescopic wire 200 is arranged inside the wire controller 100, and the other end of the telescopic wire 200 is fixedly connected to the knuckle protector 300; the wire controller 100 is fixed to the arm; when the telescopic wire 200 is in a stationary state, the positions of the knuckle protector 300 and the wire controller 100 are fixed so that the fingers, palms and arms form a fixed posture; the fixed posture is that the patient's wrist is flexed 20-30°, the metacarpophalangeal joint is flexed 40-50°, and the interphalangeal joints are fully extended. When the telescopic wire 200 is in an extended or contracted state of motion, the knuckle protector 300 moves based on the position of the wire controller 100 to assist the rehabilitation exercise of the fingers, and the rehabilitation exercise is the finger bending exercise.

[0029] Further, the bottom of the first protective gear 310 and the third protective gear 330 are both provided with a connecting outer wheel 311, and the bottom of the second protective gear 320 is provided with a connecting inner wheel 321, and the connecting outer wheel 311 is rotatably connected to the connecting inner wheel 321; a protruding outer ring 313 is provided on the inner side of the connecting outer wheel 311, and a positioning support rod 314 is provided on the side of the protruding outer ring 313 facing the hole of the connecting outer wheel 311; a positioning ring 323 is provided on the inner side of the connecting inner wheel 321; the protruding outer ring 313 rotates on the inner side of the connecting inner wheel 321 (such as Figure 4 As shown, the recessed inner ring 322 is formed between the connecting inner ring 321 and the positioning ring 323, and the positioning ring 323 rotates on the inner side of the connecting outer wheel 313 (as shown in FIG. Figure 4 The positioning ring 323 is provided with a notch, and the positioning support rod 314 moves in the notch of the positioning ring 323. The angle of the notch on the positioning ring 323 is 90°. It is worth noting that the movement of the positioning support rod 314 in the notch of the positioning ring 323 represents the rotation between two adjacent protective gears, that is, the bending of the finger knuckles. Since the maximum inward and outward area of ​​the finger knuckles is 90°, the angle at the notch is 90°. In addition, a magnet layer is provided on the recessed inner ring 322, and a magnet layer is also provided on the raised outer ring 313, so as to ensure the connection stability between adjacent protective gears, and the protective gear will not fall off even during the rotation process; Furthermore, it also includes a limiting mechanism 400, which is used to adjust the rotation angle between two adjacent knuckle protectors 300; the connecting outer wheel 311 and the connecting inner wheel 321 are both constructed as an annular structure with a hole in the middle, and the limiting mechanism 400 is inserted into the holes of the connecting outer wheel 311 and the connecting inner wheel 321, and the rotation angle of the positioning support rod 314 in the notch of the positioning ring 323 is limited. When the limiting mechanism 400 fixes the positioning support rod 314 at the starting position, that is, the positioning support rod 314 cannot move in the notch of the positioning ring, thereby ensuring the straightness of the two adjacent protectors, and by changing the limit of the rotation angle of the positioning support rod 314 by the limiting mechanism 400, the movable angle between the patient's finger knuckles is adjusted, the patient is assisted in rehabilitation exercises, and the practicality of the device is improved. The specific scheme of the limiting mechanism 400 is as follows: The limiting mechanism 400 includes a limiting plate 410 and a limiting screw 420. One side of the limiting plate 410 is fixedly connected to one side of the connecting inner wheel 321 by a screw. One end of the limiting plate 410 is fixedly connected to a limiting cylinder 411. A thread groove is arranged inside the limiting cylinder 411. The external thread on the limiting screw 420 is matched with the thread groove inside the limiting cylinder 411. A circular groove is processed inside one side of the limiting screw 420. A fixed rack 428 is arranged at the notch of the circular groove of the limiting screw 420. The circular groove of 20 is slidably connected with an extrusion push rod 423, and the extrusion push rod 423 is provided with square blocks around it. A linkage push rod 424 is provided at the bottom of the extrusion push rod 423, and a triangular block is provided around the upper part of the linkage push rod 424. A telescopic spring 426 is provided around the lower part of the linkage push rod 424, and the bottom end of the linkage push rod 424 is connected to a rotating connecting rod 425 through a rotating shaft. It should be noted that the extrusion push rod 423, the linkage push rod 424, the telescopic spring 426, the fixed rack 428 and the square block and the triangular block are composed of a mechanism type The mechanism is similar to a "ballpoint pen". Its function is to press the extrusion push rod 423 so that the rotating link 425 at the bottom of the linkage push rod 424 is driven downward and forms a self-locking state. At the same time, the extrusion push rod 423 is continued to be pressed to reset the rotating link 425 at the bottom of the linkage push rod 424. The working process is that the extrusion push rod 423 is pressed, and the extrusion push rod 423 moves downward along the circular groove of the limit screw 420. The square block on it cooperates with the fixed rack 428 to drive the linkage push rod 424 with the triangular block, so that the linkage push rod 424 moves downward. The movement and rotation occur at the same time, so that the rotating link 425 moves downward. After the pressing is completed, the telescopic spring 427 pushes the linkage push rod 424 upward to move and rotate. The triangular block on the linkage push rod 424 is stuck on the fixed rack 428. At this time, the downward movement of the rotating link 425 is completed. When the rotating link 425 needs to be reset, the squeezing push rod 423 is pressed again, and the above operation is repeated. In the above process, it is required that the fixed rack 428 is a rod body with a triangular notch, which is placed at intervals, the square block moves in its interval, and the triangular block moves in its triangular notch; The bottom of the circular groove of the limiting screw 420 is connected with a supporting connecting rod 426 through a rotating shaft, and the rotating connecting rod 425 is sleeved on the supporting connecting rod 426; a limiting groove 422 is processed on one side of the circular groove of the limiting screw 420, and the limiting groove 422 and the limiting hole 412 and the notch of the positioning ring 323 are connected to each other; specifically, when the limiting screw 420 is screwed into the limiting cylinder 411, it is necessary to ensure that the limiting groove 422 and the limiting hole 412 and the notch of the positioning ring 323 are connected to each other. At this time, the smooth operation of the device can be ensured. When the extrusion push rod 423 moves toward the inside of the circular groove of the limiting screw 420, the connection between the rotating connecting rod 425 and the supporting connecting rod 426 moves toward the outside of the limiting hole 412. When the extrusion push rod 423 moves toward the outside of the circular groove of the limiting screw 420, the rotating connecting rod 4 25 and the connection between the support link 426 moves toward the inside of the limiting hole 412. It is worth mentioning that when the rotating link 425 moves downward, the driving support link 426 performs a circular motion with its axis of rotation as the center, thereby making the connection between the rotating link 425 and the support link 420 move from the inside of the limiting screw 420 to the notch position of the positioning ring 323, thereby limiting the movement angle of the positioning support rod 314 through the connection between the rotating link 425 and the support link 420. The preferred rehabilitation exercise in this embodiment is incremental, that is, the rotation angle between the knuckles of the patient's injured finger is increased by 15° successively, and the patient performs active finger bending exercise, cooperates with the line controller 100 to assist the patient to avoid finger injury caused by excessive amplitude of the patient, and each finger bending is repeated 5 times as a group, and two groups are performed until the patient can no longer persist or the knuckle bending angle is 90°.

[0030] Furthermore, a screw handle 421 is fixedly connected to the top of the limit screw 420, and the screw handle 421 is convenient for medical staff to rotate the limit screw 420. An anti-touch baffle is fixedly connected to one side of the screw handle 421, and the anti-touch baffle is located at the central axis of the extrusion push rod 423. The shape of the anti-touch baffle is pointer-shaped. It is worth noting that the anti-touch baffle is above the extrusion push rod 423. During actual use, the extrusion push rod 423 will not be squeezed due to the collision between two fingers, thereby ensuring the stability of the device during use. The pointer-shaped anti-touch baffle, on the one hand, protects the extrusion push rod from touch, and on the other hand, locates the connection between the rotating connecting rod 425 and the supporting connecting rod 426, so as to facilitate medical staff to adjust the angle. An angle scale disk 312 is arranged on the outer side of the connecting outer wheel 311, and the range of the angle scale disk 312 is 0-90°. Through the cooperation of the angle scale disk 312 and the pointer-shaped anti-touch baffle, it is more convenient and quick to adjust to the required angle.

[0031] A method for guiding a rehabilitation orthosis for a ruptured finger flexor tendon, comprising: S1: Tie the wire controller 100 to the patient's arm, tie the knuckle protector 300 to the patient's finger, and then fix the knuckle protector 300 and the wire controller 100 by retracting the wire 200; S2: Use screws to fix the limit plate 410 on the connecting inner wheel 321, and then screw the limit screw 420 into the limit cylinder 411; fix the patient's arm posture and proceed to S3, and perform rehabilitation exercises on the patient and proceed to S4; S3: Rotate the screw handle 421 so that the anti-touch baffle points to the starting point of the angle scale plate 312, and extend the telescopic wire 200 through the wire controller 100 so that the patient's wrist is flexed by 20-30° and the metacarpophalangeal joint is flexed by 40-50°; S4: Rotate the screw handle 421 so that the reading of the angle scale disk 312 that the anti-touch baffle points to is 15°, and the patient's fingers bend. At this time, the wire controller 100 controls the telescopic wire 200 to extend and retract to assist in rehabilitation movements. Repeat 5 times as a group, and do two groups. Then continue to rotate the screw handle 421 so that the reading of the angle scale disk 312 that the anti-touch baffle points to increases by 15°, that is, 30°. The patient's fingers bend. At this time, the wire controller 100 controls the telescopic wire 200 to extend and retract to assist in rehabilitation movements. Repeat 5 times as a group, and do two groups. Repeat the above operations until the patient can no longer persist or the reading of the angle scale disk 312 that the anti-touch baffle points to is 90°. For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0032] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0033] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A rehabilitation orthosis for ruptured finger flexor tendon, characterized in that: It comprises a wire body controller (100) and a telescopic wire body (200), wherein the wire body controller (100) is used to control the extension or contraction of the telescopic wire body (200); Also included is a knuckle protector (300), wherein the knuckle protector (300) forms a fixed relationship with the finger and is used to protect the knuckle of the finger; One end of the telescopic wire (200) is arranged inside the wire controller (100), and the other end of the telescopic wire (200) is fixedly connected to the knuckle protector (300); the wire controller (100) is fixed to the arm; When the telescopic wire (200) is in a stationary state, the knuckle protector (300) and the wire controller (100) are fixed in position, so that the fingers, palm and arm form a fixed posture; When the telescopic wire (200) is in an extended or contracted motion state, the finger joint protector (300) moves based on the position of the wire controller (100) to assist the rehabilitation movement of the finger.

2. A rehabilitation orthosis for ruptured finger flexor tendons according to claim 1, characterized in that: The knuckle protector (300) comprises at least two protectors, namely a first protector (310) and a second protector (320); a connecting outer wheel (311) is provided at the bottom of the first protector (310); a connecting inner wheel (321) is provided at the bottom of the second protector (320); the connecting outer wheel (311) is rotatably connected to the connecting inner wheel (321); The connecting outer wheel (311) and the connecting inner wheel (321) are both constructed as an annular structure with a hole in the middle.

3. A rehabilitation orthosis for ruptured finger flexor tendons according to claim 2, characterized in that: A raised outer ring (313) is provided on the inner side of the connecting outer wheel (311), and a positioning support rod (314) is provided on one side of the raised outer ring (313) facing the hole of the connecting outer wheel (311); A positioning ring (323) is provided on the inner side of the connecting inner wheel (321), and a notch is provided on the positioning ring (323); The raised outer ring (313) rotates on the inner side of the connecting inner wheel (321), the positioning ring (323) rotates on the inner side of the connecting outer wheel (313), and the positioning support rod (314) moves in the notch of the positioning ring (323).

4. A rehabilitation orthosis for ruptured finger flexor tendons according to claim 3, characterized in that: It also includes a limiting mechanism (400) for adjusting the rotation angle between two adjacent knuckle protectors (300); The limiting mechanism (400) comprises a limiting plate (410) and a limiting screw (420); one side of the limiting plate (410) is fixedly connected to one side of the connecting inner wheel (321) by means of a screw; one end of the limiting plate (410) is fixedly connected to a limiting cylinder (411); a thread groove is provided inside the limiting cylinder (411); and the external thread on the limiting screw (420) fits with the thread groove inside the limiting cylinder (411).

5. The rehabilitation orthosis for ruptured finger flexor tendons according to claim 4, characterized in that: A circular groove is machined inside one side of the limiting screw (420), a fixed rack (428) is arranged at the notch of the circular groove of the limiting screw (420), an extrusion push rod (423) is slidably connected inside the circular groove of the limiting screw (420), square blocks are arranged around the extrusion push rod (423), a linkage push rod (424) is arranged at the bottom of the extrusion push rod (423), triangular blocks are arranged around the upper part of the linkage push rod (424), telescopic springs (426) are arranged around the lower part of the linkage push rod (424), and the bottom end of the linkage push rod (424) is connected to a rotating connecting rod (425) via a rotating shaft; The bottom of the circular groove of the limiting screw rod (420) is connected to a supporting connecting rod (426) via a rotating shaft, and the rotating connecting rod (425) is sleeved on the supporting connecting rod (426).

6. The rehabilitation orthosis for ruptured finger flexor tendons according to claim 5, characterized in that: A limiting groove (422) is machined on one side of the circular groove of the limiting screw (420), and the limiting groove (422) and the limiting hole (412) and the notch of the positioning ring (323) are connected to each other; When the extrusion push rod (423) moves toward the inside of the circular groove of the limiting screw (420), the connection between the rotating connecting rod (425) and the supporting connecting rod (426) moves toward the outside of the limiting hole (412). When the extrusion push rod (423) moves toward the outside of the circular groove of the limiting screw (420), the connection between the rotating connecting rod (425) and the supporting connecting rod (426) moves toward the inside of the limiting hole (412).

7. A rehabilitation orthosis for ruptured finger flexor tendons according to claim 6, characterized in that: The top end of the limiting screw (420) is fixedly connected to a screw handle (421), and one side of the screw handle (421) is fixedly connected to an anti-touch baffle, wherein the anti-touch baffle is located at the central axis of the extrusion push rod (423).

8. The rehabilitation orthosis for ruptured finger flexor tendons according to claim 7, characterized in that: An angle-marked disc (312) is provided on the outer side of the connecting outer wheel (311); The angle of the notch on the positioning ring (323) is 90°.

9. The rehabilitation orthosis for ruptured finger flexor tendons according to claim 2, characterized in that: Each knuckle protector (300) is machined with a through hole (301) on its top, and a fastening bolt (302) is also machined on its top.

10. A method for guiding a rehabilitation orthosis for a ruptured finger flexor tendon, applied to a rehabilitation orthosis for a ruptured finger flexor tendon as claimed in claim 8, characterized in that: include: S1: tying the wire controller (100) to the patient's arm, tying the knuckle protector (300) to the patient's finger, and then fixing the knuckle protector (300) and the wire controller (100) by retracting the wire (200); S2: fix the limit plate (410) to the connecting inner wheel (321) by screws, and then screw the limit screw (420) into the limit cylinder (411); fix the patient's arm posture and proceed to S3, and perform rehabilitation exercises on the patient and proceed to S4; S3: Rotate the screw handle (421) so that the anti-touch baffle points to the starting point of the angle scale disk (312), and extend the telescopic wire (200) through the wire controller (100) so that the patient's wrist is flexed by 20-30° and the metacarpophalangeal joint is flexed by 40-50°; S4: The screw handle (421) is rotated so that the reading of the angle scale disk (312) at which the anti-touch baffle plate points is 15°, and the patient's finger performs a bending movement. At this time, the wire controller (100) controls the telescopic wire body (200) to telescope to assist in the rehabilitation movement. This is repeated five times as a group, and two groups are performed. Then, the screw handle (421) is continuously rotated so that the reading of the angle scale disk (312) at which the anti-touch baffle plate points increases by 15°, i.e., to 30°. The patient's finger performs a bending movement. At this time, the wire controller (100) controls the telescopic wire body (200) to telescope to assist in the rehabilitation movement. This is repeated five times as a group, and two groups are performed. The above operation is repeated until the patient can no longer persist or the reading of the angle scale disk (312) at which the anti-touch baffle plate points is 90°.

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