CN115721911A - A traction finger rehabilitation training mechanism - Google Patents

Abstract

The invention discloses a traction type finger rehabilitation training mechanism which comprises a bottom plate, wherein one end of the bottom plate is provided with a thumb traction assembly, the other end of the bottom plate is provided with a four-finger traction assembly, and a fixed handle assembly for limiting a palm to slide upwards is arranged between the thumb traction assembly and the four-finger traction assembly; the thumb traction assembly comprises a thumb motor mounting plate and a thumb traction motor with a telescopic function, and an execution end of the thumb traction motor penetrates through the thumb motor mounting plate towards the fixed handle assembly; the four-finger traction assembly comprises a four-finger motor mounting plate and a four-finger traction motor with a telescopic function, and the actuating ends of the four-finger traction motor penetrate through the four-finger motor mounting plate towards the fixed handle assembly; the executing end of the thumb traction motor and the end of the executing end of the four-finger traction motor are respectively hinged with a finger fixing mechanism for fixing fingers. The invention has simple structure, can be disassembled for carrying, and realizes the active training and the passive training of five fingers or single finger.

Description

A traction finger rehabilitation training mechanism

technical field

The invention relates to the technical field of medical rehabilitation training equipment, in particular to a traction type finger rehabilitation training mechanism.

Background technique

Stroke is a disease with a high disability rate, which can cause impairment of the limbs of the human body. Hand function is essential in human life. However, due to hand dysfunction caused by stroke, these patients lose their ability to take care of themselves. According to research, through finger rehabilitation treatment, about 20%-30% of patients' hand function can be restored to the state of practical life, and 30%-40% of the patient's hand function can be restored to the state of assisted living.

At present, the best rehabilitation treatment method for patients with finger disabilities or finger trauma at home and abroad is to repair and reshape the damaged nerves and continuous passive exercise rehabilitation training. The traditional recovery treatment for finger patients is to perform one-on-one rehabilitation on patients by rehabilitation technicians. Treatment is labor-intensive and expensive.

With the assistance of finger rehabilitation robots, rehabilitation physicians can provide patients with functional and progressive rehabilitation treatments that can solve problems such as labor load and cost, so finger rehabilitation robots have emerged as the times require.

The specification whose publication number is CN 109549819 B discloses a palm-supported finger rehabilitation training device and a method of use. The device includes a mounting base, a finger rehabilitation training mechanism installed on the mounting base, and a driving mechanism for driving the finger rehabilitation training mechanism; The finger rehabilitation training mechanism includes four sets of independent and identical finger training combined transmission devices, which respectively correspond to the index finger, middle finger, ring finger and little finger of the human hand structure; the mounting base has a supporting surface capable of supporting the human palm; each set of fingers The combined transmission device for training includes MP motion chute, PIP finger cot, DIP finger cot and connecting rod transmission mechanism. The spatial position of the finger is controlled in real time. This invention does not disclose the finger training combined transmission device for the thumb, which cannot complete the rehabilitation training for the thumb, so this finger rehabilitation training device still has relatively large limitations.

The specification whose publication number is CN 211752263 U discloses a stretching device for finger rehabilitation training, which includes a mounting plate, four sets of first mounting blocks are fixedly installed horizontally on the top of the mounting plate, and a fixing plate is fixedly mounted on the top of each set of first mounting blocks. The bottom of the fixed plate is fixedly installed with a first ring, the first ring is detachably installed with a spring, the bottom of the spring is detachably installed with a second ring, the bottom of the second ring is integrally formed with a slider, and the bottom of the slider is fixed with a wire rope. The bottom of the mounting block is provided with a through hole, and the steel wire rope is installed through the through hole, and a ring is fixedly installed at the end of the steel wire rope, and two combination pages are fixedly installed on the right side of the first mounting block. This invention mainly relies on the elastic force of the spring to complete the active training of the patient, but cannot complete the passive training, so it is only suitable for patients with better muscle strength, and cannot be used by patients with poor muscle strength, and the application range has certain limitations.

Contents of the invention

The object of the present invention is to provide a traction-type finger rehabilitation training mechanism that can realize passive training and active training of five fingers of a patient at the same time.

A traction-type finger rehabilitation training mechanism, comprising a base plate, characterized in that one end of the base plate is provided with a thumb traction assembly, the other end is provided with a four-finger traction assembly, and there is a set between the thumb traction assembly and the four-finger traction assembly. A fixed handle assembly to limit the upward sliding of the palm;

The thumb traction assembly includes a thumb motor mounting plate and a thumb traction motor with a telescopic function, and the execution end of the thumb traction motor passes through the thumb motor mounting plate toward the fixed handle assembly;

The four-finger traction assembly includes a four-finger motor mounting plate and four four-finger traction motors with telescoping functions, and the execution ends of the four-finger traction motor pass through the four-finger motor mounting plate toward the fixed handle assembly;

Five finger fixing mechanisms for fixing fingers are respectively hinged to the ends of the executing end of the thumb pulling motor and the executing end of the four-finger pulling motor.

When the user needs to perform finger rehabilitation training, the palm of the hand is placed against the fixed handle assembly, and the distal knuckle of the thumb and the second knuckles of the index finger, middle finger, ring finger and little finger are fixed by the finger fixing mechanism. By controlling the operation of one or more of the thumb traction motor and the four-finger traction motor, when one or more of the thumb traction motor and the four-finger traction motor are working, the corresponding fingers of the traction motor are passively trained. When the execution end of the traction motor stretches out to push the finger to do circular motion; when one or more of the thumb traction motor and the four-finger traction motor stop working, the finger corresponding to the traction motor is active training, and the execution of the traction motor at this time The end relies on the strength of the fingers to stretch. According to the above principles, training methods such as palm-to-palm and fist-clenching in finger rehabilitation training can be carried out.

The fixed handle assembly includes a fixed adjustment base fixed on the bottom plate, a vertical rod is arranged on the fixed adjustment base, a vibration motor is fixed on the side wall of the vertical rod in contact with the center of the palm, and a belt is arranged on the upper end of the vertical rod. Telescopic adjustment lever with duckbill top. The telescopic adjustment rod can be adjusted up and down according to the size of the user's palm until the duckbill-shaped top can effectively limit the upward sliding of the palm. The vibrating motor is provided to provide the user with a tactile feedback prompt, which effectively enhances the sensory experience of the user.

Preferably, the upper end of the fixed adjustment seat is provided with an arc-shaped groove for placing the palm, and the width of the arc-shaped groove matches the thickness of the user's palm, so as to provide comfort for the user during use.

The thumb traction assembly is also provided with a first fixing bracket fixed on the bottom plate, and the thumb motor mounting plate is bolted to the first fixing bracket through a vertically arranged waist hole. The vertical position of the thumb motor mounting plate can be adjusted through the vertically arranged waist hole.

The thumb motor mounting plate is provided with a thumb U-shaped groove for slidingly connecting the execution end of the thumb traction motor, and a thumb for adjusting the movement or swing range of the execution end of the thumb traction motor is arranged in the thumb U-shaped groove. Compression screw: the adjustment and compression of the thumb compression screw can make the execution end of the thumb traction motor move or swing to adapt to the length of thumbs of different users.

The four-finger traction assembly is also provided with a second fixing bracket fixed on the bottom plate, and the four-finger motor mounting plate is bolted to the second fixing bracket through a vertically arranged waist hole. The vertical position of the four-finger motor mounting plate can be adjusted through the vertical waist hole.

There are four parallel four-finger U-shaped grooves on the four-finger motor mounting plate, and the four-finger U-shaped grooves are respectively used for slidingly connecting the execution end of the four-finger traction motor. All are equipped with a four-finger compression screw for adjusting the movement or swing amplitude of the execution end of the four-finger traction motor; the adjustment and compression of the compression screw can make the movement or swing amplitude of the execution end of the four-finger traction motor adapt to different The user's four-finger length.

Preferably, the four parallel four-finger U-shaped slots are arranged in a circular arc on the four-finger motor mounting plate; different transverse slotting positions are set on the four-finger motor mounting plate to meet the different length requirements of the four fingers .

The finger fixing mechanism includes a strap and a strap fixing ring, one end of the strap fixing ring is a U-shaped block that is internally hinged to the execution end of the thumb traction motor or the execution end of the four-finger traction motor, and the thumb The other end of the strap fixing ring is a semicircular plate fixed to the U-shaped block, and the semicircular plate is provided with a long hole for fixing the strap. The setting of the straps can be applied to fingers of different thicknesses.

The present invention has designed traction type finger rehabilitation training mechanism, compared with prior art, the advantage of the present invention is:

1. The present invention realizes simultaneous active training and passive training of five fingers, and can also realize active training and passive training of a single finger.

2. Copying the mirror image of the mechanism of the present invention can realize the traction rehabilitation training of the left and right hands.

3. The present invention is simple in structure, convenient to use, easy to assemble, detachable and portable; at the same time, the present invention has low cost and is favorable for popularization.

Description of drawings

Fig. 1 is a schematic structural diagram of a traction-type finger rehabilitation training mechanism according to an embodiment of the present invention.

FIG. 2 is a schematic structural view of the fixed handle assembly shown in FIG. 1 .

FIG. 3 is a schematic structural diagram of the thumb traction assembly shown in FIG. 1 .

FIG. 4 is a schematic structural diagram of the four-finger traction assembly shown in FIG. 1 .

Fig. 5 is a schematic view of the use of the traction finger rehabilitation training mechanism shown in Fig. 1 when the fingers are fixed.

Fig. 6 is a schematic diagram of the use of the traction finger rehabilitation training mechanism shown in Fig. 1 when the fingers are traction.

Detailed ways

As shown in FIGS. 1-4 , the traction finger rehabilitation training mechanism includes a bottom plate 1 , a fixed handle assembly 2 , a thumb traction assembly 3 and a four-finger traction assembly 4 . The thumb traction assembly 3 is arranged on the end of the bottom plate 1 close to the human body, the four-finger traction assembly 4 is located on the end of the bottom plate 1 away from the human body, and the fixed handle assembly 2 is arranged between the thumb traction assembly 3 and the four-finger traction assembly 4 .

The fixed handle assembly 2 includes a fixed adjustment seat 6 , a vibration motor 7 and a telescopic adjustment rod 5 . The lower end of the fixed adjustment seat 6 is fixed on the base plate 1, and the upper end of the fixed adjustment seat 6 is fixed with a vertical rod 61, and the side wall of the vertical rod 61 in contact with the center of the palm is fixed with the vibrating motor 7 for providing the tactile force prompt of the palm . The upper end of the fixed adjustment seat 6 is also provided with an arc-shaped groove 62 for placing the palm. The width of the arc-shaped groove 62 is 25-30 mm, and matches the thickness of the user's palm to provide comfort for the user.

The upper end of the vertical rod 61 is fixed with a telescopic adjustment rod 5, and the upper end of the telescopic adjustment rod 5 is a duckbill-shaped top, and the telescopic adjustment rod 5 can be adjusted up and down according to the size of the user's palm until the duckbill-shaped top can effectively limit the upward sliding of the palm . The bottom of the telescopic adjustment rod 5 adopts a cylindrical shape, which increases the comfort when the center of the palm and the telescopic adjustment rod 5 offset each other.

The thumb traction assembly 3 includes a thumb traction motor 8 with a telescoping function, a thumb motor mounting plate 9 , a first fixing bracket 10 and a finger fixing mechanism 11 . The first fixed support 10 is an L-shaped support, and its bottom is fixed on the base plate 1 by bolts; the part of the thumb motor mounting plate 9 near the human body is provided with a vertical waist hole for bolts to fix the first fixed support 10, and the thumb motor mounting plate 9. Adjust the vertical position through the vertical waist hole and bolts, which can meet the adjustment of the thumb height of different users.

The upper part of the thumb motor mounting plate 9 extends away from the human body and has a thumb U-shaped groove 91 for slidingly connecting the execution end of the thumb traction motor 8, and the execution end of the thumb traction motor 8 is installed toward the fixed handle assembly 2 through the thumb motor. plate 9.

The outer end in the thumb U-shaped groove 91 is fixed with a thumb compression screw 92 for adjusting the movement of the execution end of the thumb traction motor 8 or a swing range; The range of movement or swing adapts to the length of thumbs of different users.

The four-finger traction assembly 4 includes four four-finger traction motors 12 with telescopic functions, a four-finger motor mounting plate 13 , a second fixing bracket 14 and a finger fixing mechanism 11 . The second fixed bracket 14 is an L-shaped bracket, and its bottom is fixed on the base plate 1 by bolts; the part of the four-finger motor mounting plate 13 near the human body is provided with a vertical waist hole for bolt-fixing the second fixed bracket 14, and the four-finger motor The mounting plate 13 adjusts the vertical position through vertical waist holes and bolts, which can meet the adjustment of the overall height position of the four fingers of different users.

The part of the four-finger motor mounting plate 13 away from the human body has four parallel four-finger U-shaped grooves 131 for slidingly connecting the execution ends of the four-finger traction motor 12, and the vertical distance between the four-finger U-shaped grooves 131 is 24 mm. The execution end of the four-finger traction motor 12 passes through the four-finger motor mounting plate 13 toward the fixed handle assembly 2 .

Four parallel four-finger U-shaped grooves 131 are arranged in an arc shape on the four-finger motor mounting plate 13, and the distance between them in the transverse direction is 10-13 mm. Different transverse slotting positions are set on the four-finger motor mounting plate 13 to meet the different length requirements of the four fingers.

The outer end in the four-finger U-shaped groove 131 is fixed with a four-finger compression screw 132 for adjusting the execution end movement or swing amplitude of the four-finger traction motor 12; The actuator end of the motor 12 moves or swings to adapt to different finger lengths of different users.

The finger fixing mechanism 11 comprises a strap 111 and a strap fixing ring 112. One end of the strap fixing ring 112 is a U-shaped block 113 that is hinged with the execution end of the thumb traction motor 8 or the execution end of the four-finger traction motor 12. The thumb strap The other end of the fixing ring 112 is a semicircular plate 114 fixed to the U-shaped block 113. The radius of the semicircular plate 114 is 9-10mm.

As shown in Figure 5 and Figure 6, when the user needs to carry out finger rehabilitation training, adjust the height of the telescopic adjustment rod 5, the thumb motor mounting plate 9 and the four-finger motor mounting plate 13 according to the size of the user's palm, and then adjust the height according to the user's palm size. Loosen the thumb compression screw 92 and the four-finger compression screw 132 respectively for the length of the fingers, adjust the positions of the thumb traction motor 8 and the four-finger traction motor 12 by moving or swinging, and tighten the thumb compression screw 92 and the four-finger compression Screw 132 compresses. Put the palm in the arc-shaped groove 62, and the center of the palm is against the vibrating motor 7, put the fingers into the semicircular plate 114, and then fix them with straps 111. The second knuckle of the ring finger and little finger.

By controlling one or more of the thumb traction motor 8 and the four-finger traction motor 12, when one or more of the thumb traction motor 8 and the four-finger traction motor 12 is working, the corresponding fingers of the traction motor are Passive training; when one or more of the thumb traction motor 8 and the four-finger traction motor 12 stopped working, the corresponding fingers of the traction motor were active training, and now the executive end of the traction motor relied on the strength of the fingers to stretch.

Taking the independent passive training of the thumb as an example, the thumb traction motor 8 is independently controlled to work, and the execution end of the thumb traction motor 8 is extended outward. Through the articulation of the finger fixing mechanism 11 and the execution end of the thumb traction motor 8, the linear motion of the execution end of the thumb traction motor 8 is converted into a circular arc motion that bends in the palm during thumb rehabilitation training. The remaining four fingers rely on the strength of the fingers themselves to bend inward in a circular arc, through the hinge of the finger fixing mechanism 11 and the four-finger traction motor 12, the circular arc motion of the four fingers is converted into a straight line at the execution end of the four-finger traction motor 12. Stretch, bend five fingers until the vibration motor 7 vibration prompts the training is completed. According to the above principles, training methods such as palm-to-palm and fist-clenching in finger rehabilitation training can be carried out.

Claims (9)

1. a traction type finger rehabilitation training mechanism, comprising a base plate (1), is characterized in that, one end of the base plate (1) is provided with a thumb traction assembly (3), and the other end is provided with a four-finger traction assembly (4), A fixed handle assembly (2) for limiting the upward sliding of the palm is provided between the thumb traction assembly (3) and the four-finger traction assembly (4); the thumb traction assembly (3) includes a thumb motor mounting plate (9) and A thumb traction motor (8) with a telescopic function is provided, and the execution end of the thumb traction motor (8) passes through the thumb motor mounting plate (9) toward the fixed handle assembly (2); the four-finger traction assembly (4) comprising a four-finger motor mounting plate (13) and four four-finger traction motors (12) with telescoping functions, the execution ends of the four-finger traction motors (12) are all facing the fixed handle assembly (2) Through the four-finger motor mounting plate (13); the ends of the execution end of the thumb traction motor (8) and the execution end of the four-finger traction motor (12) are respectively hinged with five finger fixing mechanisms (11) for fixing fingers . 2. The traction type finger rehabilitation training mechanism according to claim 1, characterized in that, said fixed handle assembly (2) comprises a fixed adjustment seat (6) fixed on the base plate (1), said fixed adjustment seat ( 6) A vertical bar (61) is provided on the top, and a vibration motor (7) is fixed on the side wall of the vertical bar (61) in contact with the center of the palm. The upper end of the vertical bar (61) is provided with a duckbill top. Telescopic adjustment rod (5). 3. The traction finger rehabilitation training mechanism according to claim 2, characterized in that, the upper end of the fixed adjustment seat (6) is provided with an arc-shaped groove (62) for placing the palm, and the arc-shaped recess The width of the slot (62) matches the thickness of the user's palm. 4. traction type finger rehabilitation training mechanism according to claim 1, is characterized in that, described thumb traction assembly (3) is also provided with the first fixing support (10) that is fixed on the base plate (1), and described The thumb motor mounting plate (9) is bolted to the first fixing bracket (10) through a vertically arranged waist hole. 5. The traction-type finger rehabilitation training mechanism according to claim 1, characterized in that, said thumb motor mounting plate (9) is provided with a thumb U-shaped for slidingly connecting the execution end of said thumb traction motor (8). slot (91), the thumb U-shaped slot (91) is provided with a thumb compression screw (92) for adjusting the movement or swing range of the execution end of the thumb traction motor (8). 6. traction type finger rehabilitation training mechanism according to claim 1, is characterized in that, described four-finger traction assembly (4) is also provided with the second fixed bracket (14) that is fixed on the base plate (1), so The four-finger motor mounting plate (13) is bolted to the second fixing bracket (14) through a vertically arranged waist hole. 7. The traction type finger rehabilitation training mechanism according to claim 1, characterized in that, the four-finger motor mounting plate (13) has four parallel four-finger U-shaped slots (131), the four fingers Finger U-shaped slots (131) are respectively used to slidably connect the execution ends of the four-finger traction motors (12), and the four-finger U-shaped slots (131) are provided with four-finger traction motors (12) for adjusting The four-finger compression screw (132) of the actuator end moves or swings. 8. The traction-type finger rehabilitation training mechanism according to claim 7, characterized in that, said four parallel four-finger U-shaped slots (131) are arc-shaped on said four-finger motor mounting plate (13) shape arrangement. 9. traction type finger rehabilitation training mechanism according to claim 1, is characterized in that, described finger fixing mechanism (11) comprises strap (111) and strap fixing ring (112), and described strap fixing ring ( One end of 112) is the U-shaped block (113) that internally hinges the execution end of the thumb traction motor (8) or the execution end of the four-finger traction motor (12), and the other of the thumb strap fixing ring (112) One end is a semicircular plate (114) fixed to the U-shaped block (113), and the semicircular plate (114) is provided with a long hole for fixing the strap (111).

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