阅读说明：本技术 一种骨科用手掌指骨间关节矫正机 (Orthopedic palm phalangeal joint straightening machine ) 是由 丁舒雅 于 2020-06-12 设计创作，主要内容包括：本发明涉及手掌关节矫正训练设备领域,具体为一种骨科用手掌指骨间关节矫正机,包括座板,座板上设置有用于手指活动的弯折机构,弯折机构上设置有对指骨施加推力的指骨整形机构,弯折机构可与指骨整形机构传动连接,座板上设置有对关节施加推力的关节整形机构,弯折机构可与关节整形机构传动连接。该种骨科用手掌指骨间关节矫正机,实现可以根据病患手指的弯曲方向调节本装置的矫正方,提高使用范围和实用性,利用弯折机构带动关节整形机构和指骨整形机构对手指施加挤压力,实现在手指施力活动时对关节矫正,一方面能够促使手指血液顺畅流通,另一方面帮助手指在用力时保持正确的施力状态,有助于手矫正康复的稳定性。(The invention relates to the field of palm joint correction training equipment, in particular to an orthopedic palm phalangeal joint corrector, which comprises a seat plate, wherein a bending mechanism for finger movement is arranged on the seat plate, a phalangeal shaping mechanism for applying thrust to phalanges is arranged on the bending mechanism, the bending mechanism can be in transmission connection with the phalangeal shaping mechanism, a joint reshaping mechanism for applying thrust to joints is arranged on the seat plate, and the bending mechanism can be in transmission connection with the joint reshaping mechanism. This joint unscrambler between palm phalanx for orthopedics realizes can adjusting the correction side of this device according to the crooked direction that the disease pointed, improves application range and practicality, utilizes buckle mechanism to drive joint plastic mechanism and indicate bone plastic mechanism to exert the extrusion force to the finger, realizes correcting the joint when the finger application of force is movable, can make finger blood smoothly circulate on the one hand, and on the other hand helps the finger keep the exact application of force state when exerting oneself, helps the recovered stability of hand correction.)

1. The utility model provides an orthopedics is with joint correction machine between palm phalanx, includes bedplate (1), its characterized in that: the finger bending mechanism is characterized in that a bending mechanism used for movement of fingers is arranged on the seat plate (1), a phalanx shaping mechanism used for applying thrust to phalanges is arranged on the bending mechanism, the bending mechanism can be in transmission connection with the phalanx shaping mechanism, a joint shaping mechanism used for applying thrust to joints is arranged on the seat plate (1), and the bending mechanism can be in transmission connection with the joint shaping mechanism.

2. The orthopedic interphalangeal joint correction machine according to claim 1, characterized in that: the bending mechanism comprises a first finger groove (7) and a second finger groove (2) used for clamping fingers, the first finger groove (7) and the second finger groove (2) are identical in structure, the cross section of the first finger groove is in a shape of a [ -with an upward opening, the first finger groove (7) is fixed on the seat plate (1), the end portion of the first finger groove (7) is connected with the end portion of the second finger groove (2), one end, pointing to the second finger groove (2), of the first finger groove (7) is fixed with a shaft sleeve (15), a rotating shaft (19) is arranged inside the shaft sleeve (15), the rotating shaft (19) can rotate in the shaft sleeve (15) in a fixed shaft mode, one end, pointing to the first finger groove (7), of the second finger groove (2) is fixed with a lug (18), and the lug (18) is fixedly connected with the rotating shaft (19).

3. The orthopedic interphalangeal joint correction machine according to claim 2, characterized in that: be fixed with protruding frame (13) on bedplate (1), protruding frame (13) and first finger groove (7) are located the both sides of second finger groove (2), be provided with two sets of wire wheel (14) on protruding frame (13) side by side, every group wire wheel (14) are provided with two, the one end of the one end fixed connection stay cord (12) of the directional protruding frame (13) of second finger groove (2), stay cord (12) can twine respectively on two sets of wire wheel (14), the lateral wall both sides of first finger groove (7) and second finger groove (2) all are provided with finger bone plastic mechanism, the one end accessible couple that second finger groove (2) was kept away from in stay cord (12) is connected with finger bone plastic mechanism with the same one side on first finger groove (7), the second finger groove (2) respectively.

4. The orthopedic interphalangeal joint correction machine according to claim 2, characterized in that: the joint plastic mechanism sets up the junction downside in first finger groove (7) and second finger groove (2), joint plastic mechanism includes balladeur train (4), what balladeur train (4) was the ascending "[" shape of opening, the middle part bottom surface of balladeur train (4) is fixed with slider (17), spout (16) have been seted up to the position that corresponds first finger groove (7) and second finger groove (2) junction on bedplate (1), slider (17) sliding connection is in spout (16), the trend of spout (16) is parallel with pivot (19).

5. The orthopedic interphalangeal joint correction machine according to claim 4, characterized in that: the joint reshaping mechanism further comprises two supports (6) fixed on two side plates outside the first finger groove (7), the two supports (6) are symmetrically arranged, a screw rod (5) is connected to each support (6) in a threaded manner, the screw rod (5) is parallel to the rotating shaft (19), the two screw rods (5) share a central axis and are positioned between the first finger groove (7) and the second finger groove (2), a top plate II (9) is fixed at one opposite end of each screw rod (5), and a gear I (11) is fixed at one end, opposite to each other, of each screw rod (5); both ends of pivot (19) all are fixed with gear two (20), two gear two (20) and two gear one (11) one-to-one, and gear two (20) are located the downside of the gear one (11) that corresponds, the equal dead axle rotation of both ends inboard of balladeur train (4) is linked there are tooth post (10), two tooth post (10) sharing the central axis, tooth post (10) are parallel to each other with screw rod (5), and two tooth post (10) and two screw rod (5) one-to-ones, two tooth post (10) are located the both sides in first finger groove (7) and second finger groove (2) respectively, tooth post (10) can mesh simultaneously and connect gear one (11) and gear two (20) that correspond.

6. The orthopedic interphalangeal joint correction machine according to claim 3, characterized in that: the phalanx plastic mechanism symmetrical formula setting of the lateral wall both sides of second finger groove (2), phalanx plastic mechanism is including fixing bearing board (3) on second finger groove (2) lateral wall, bearing board (3) are parallel to each other with bedplate (1), be fixed with leading truck (25) on the side of keeping away from second finger groove (2) on bearing board (3), sliding connection has rack (24) on leading truck (25), rack (24) are perpendicular with pivot (19) different face, the one end accessible couple and stay cord fixed connection of the directional protruding frame (13) of rack (24), the one end that rack (24) deviate from protruding frame (13) is connected with lug (27) through spring two (26), and lug (27) are fixed on bearing board (3).

7. The orthopedic interphalangeal joint correction machine according to claim 6, characterized in that: a third gear (28) is rotationally connected to the bearing plate (3) in a fixed-shaft mode, the third gear (28) is meshed with the rack (24) and connected with the third gear (28), and a cam (23) is fixed to the third gear (28).

8. The orthopedic interphalangeal joint correction machine according to claim 7, characterized in that: an ejector rod (29) penetrates through the side wall of the second finger groove (2), the ejector rod (29) can slide on the side wall of the second finger groove (2), the ejector rod (29) is perpendicular to the rack (24), a pressing plate (22) is fixed at one end, pointing to the rack (24), of the ejector rod (29), the pressing plate (22) is in abutting contact with the cam (23), the pressing plate (22) is connected with the outer side wall of the second finger groove (2) through a first spring (21), and a first top plate (8) is fixed at one end, pointing to the inside of the second finger groove (2), of the ejector rod (29).

Technical Field

The invention relates to the field of palm joint correction training equipment, in particular to an orthopedic palm interphalangeal joint correction machine.

Background

The knuckle position of palm leads to phalanx joint to take place bending deformation when receiving disease, wound, use and standardize, and is not pleasing to the eye on the one hand, if on the other hand is not corrected in time, can make the bending degree aggravate, aggravate the sick pain, influences the normal use function of finger.

In the existing finger joint correction mode, a fixing device is usually adopted to keep fingers fixed and set constant external force to enable joints to be continuously corrected, the fingers cannot move in the mode, unsmooth finger blood circulation is often caused, numbness, pain and the like are prone to occurring, correction and rehabilitation of the fingers are affected, in addition, the fingers corrected in the fixing mode are prone to being bent and deformed again when gravity labor is carried out again, multiple correction is needed, and inconvenience is brought to life.

Disclosure of Invention

The present invention is directed to an orthopedic interphalangeal joint orthosis, which solves the above-mentioned problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an orthopedics is with joint straightening machine between palm phalanx, includes the bedplate, is provided with the bending mechanism who is used for pointing the activity on the bedplate, is provided with the phalanx plastic mechanism that exerts thrust to the phalanx on the bending mechanism, and bending mechanism can be connected with phalanx plastic mechanism transmission, is provided with the joint plastic mechanism that exerts thrust to the joint on the bedplate, and bending mechanism can be connected with joint plastic mechanism transmission.

Preferably, the bending mechanism comprises a first finger groove and a second finger groove for clamping fingers, the first finger groove and the second finger groove are identical in structure, the cross section of the first finger groove is in a shape of [ -with an upward opening, the first finger groove is fixed on the seat plate, the end part of the first finger groove is connected with the end part of the second finger groove, a shaft sleeve is fixed at one end of the first finger groove, which points to the second finger groove, a rotating shaft is arranged in the shaft sleeve, the rotating shaft can rotate in the shaft sleeve in a rotating mode, a lug is fixed at one end of the second finger groove, which points to the first finger groove, and the lug is fixedly connected with the rotating shaft.

Preferably, be fixed with the ledge on the bedplate, ledge and first finger groove are located the both sides in second finger groove, be provided with two sets of wire wheels on the ledge side by side, every group wire wheel is provided with two, the one end fixed connection stay cord of the directional ledge in second finger groove one end, the stay cord can twine respectively on two sets of wire wheels, the lateral wall both sides in first finger groove and second finger groove all are provided with finger bone plastic mechanism, the one end accessible couple that the second finger groove was kept away from to the stay cord is connected with finger bone plastic mechanism with one side on the first finger groove respectively, the second finger groove.

Preferably, the joint shaping mechanism is arranged on the lower side of the joint of the first finger groove and the second finger groove and comprises a sliding frame, the sliding frame is in an upward-opening [ -shape, a sliding block is fixed on the bottom surface of the middle of the sliding frame, a sliding groove is formed in the seat plate corresponding to the joint of the first finger groove and the second finger groove, the sliding block is connected in the sliding groove in a sliding mode, and the direction of the sliding groove is parallel to the rotating shaft.

Preferably, the joint reshaping mechanism further comprises two supports fixed on two side plates outside the first finger groove, the two supports are symmetrically arranged, screw rods are connected to the supports in a threaded manner, the screw rods are parallel to the rotating shaft, the two screw rods share the central axis and are located between the first finger groove and the second finger groove, one ends, opposite to the screw rods, are fixed with a second top plate, and one ends, opposite to each other, of the two screw rods are fixed with a first gear.

Preferably, both ends of pivot all are fixed with gear two, two gear two and two gear one-to-one, and gear two is located the downside of the gear one that corresponds, and the equal dead axle of both ends inboard of balladeur train rotates and is linked there is the tooth post, two the central axis is shared to the tooth post, and the tooth post is parallel to each other with the screw rod, and two tooth posts and two screw rod one-to-ones, two the tooth post is located the both sides in first finger groove and second finger groove respectively, and the tooth post can mesh simultaneously and connect corresponding gear one and gear two.

Preferably, the phalanx plastic mechanism symmetrical formula setting of the lateral wall both sides in second finger groove, phalanx plastic mechanism is including fixing the bearing board on the second finger groove lateral wall, bearing board and bedplate are parallel to each other, it is fixed with the leading truck to keep away from the side in second finger groove on the bearing board, sliding connection has the rack on the leading truck, the rack is perpendicular with the different face of pivot, the one end accessible couple and the stay cord fixed connection of the directional ledge of rack, the rack deviates from the one end of ledge and is connected with the lug through spring two, and the lug is fixed on the bearing board.

Preferably, the fixed shaft on the bearing plate is rotatably connected with a third gear, the third gear is meshed with the rack and is fixedly provided with a cam.

Preferably, a push rod penetrates through the side wall of the second finger groove, the push rod can slide on the side wall of the second finger groove, the push rod is perpendicular to the rack, a pressing plate is fixed at one end, pointing to the rack, of the push rod, the pressing plate is in abutting and buckling contact with the cam, the pressing plate is connected with the outer side wall of the second finger groove through a first spring, and a first top plate is fixed at one end, pointing to the inside of the second finger groove, of the push rod.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the joint reshaping mechanism and the phalanx reshaping mechanism are adjusted to correspond to the finger according to the bending direction of the finger, so that the correction direction of the device can be adjusted according to the bending direction of the finger of a patient, the adjustment operation is simple and convenient, the device is convenient to apply to patients with different finger bending directions, and the application range and the practicability are improved; the bending mechanism is driven by the fingers, and the bending mechanism is utilized to drive the joint reshaping mechanism and the phalanx reshaping mechanism to apply extrusion force to the fingers, so that the joints are corrected when the fingers apply force to move. In the use process, firstly, the joint plastic mechanism and the phalange plastic mechanism are adjusted to correspond to the fingers according to the bending direction of the fingers; then the bending mechanism drives the joint reshaping mechanism and the phalanx reshaping mechanism to apply extrusion force to the fingers; and finally, the phalangeal plastic mechanism drives the bending mechanism and the joint plastic mechanism to reset.

On the one hand can make finger blood smoothly circulate, on the other hand helps the finger to keep the exact application of force state when exerting oneself, helps the recovered stability of hand correction to the activity degree can be controlled by the disease, so that according to actual conditions automatically regulated, the extrusion force of two pairs of fingers on roof one and roof improves the safety guarantee.

Drawings

FIG. 1 is a top view of the final assembly structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

FIG. 4 is a second top view of the final assembly structure of the present invention;

FIG. 5 is a schematic view of the cross-sectional structure C-C of FIG. 4;

FIG. 6 is a first schematic view of the cross-sectional structure of FIG. 4 taken along line D-D;

FIG. 7 is a schematic view of the cross-sectional structure D-D of FIG. 4;

FIG. 8 is a schematic diagram of a second finger groove structure according to the present invention.

In the figure: 1. a seat plate; 2. a second finger groove; 3. a support plate; 4. a carriage; 5. a screw; 6. a support; 7. a first finger groove; 8. a first top plate; 9. a second top plate; 10. a tooth post; 11. a first gear; 12. pulling a rope; 13. a convex frame; 14. a wire guide wheel; 15. a shaft sleeve; 16. a chute; 17. a slider; 18. a lug; 19. a rotating shaft; 20. a second gear; 21. a first spring; 22. pressing a plate; 23. a cam; 24. a rack; 25. a guide frame; 26. a second spring; 27. a bump; 28. a third gear; 29. and a push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

the utility model provides an orthopedics is with joint straightening machine between palm phalanx, includes bedplate 1, is provided with the bending mechanism who is used for pointing the activity on bedplate 1, is provided with the phalanx plastic mechanism that exerts thrust to the phalanx on the bending mechanism, and bending mechanism can be connected with phalanx plastic mechanism transmission, is provided with the joint plastic mechanism that exerts thrust to the joint on bedplate 1, and bending mechanism can be connected with joint plastic mechanism transmission.

In this embodiment, as shown in fig. 1, 2, 6 and 7, the bending mechanism includes a first finger groove 7 and a second finger groove 2 for clamping fingers, the first finger groove 7 and the second finger groove 2 have the same structure, as shown in fig. 8, and the cross section is in a shape of [, which is open upward, the first finger groove 7 is fixed on the seat plate 1, the first finger groove 7 is connected with the end of the second finger groove 2, a shaft sleeve 15 is fixed at one end of the first finger groove 7, which is directed to the second finger groove 2, a rotating shaft 19 is arranged inside the shaft sleeve 15, the rotating shaft 19 can rotate within the shaft sleeve 15, a lug 18 is fixed at one end of the second finger groove 2, which is directed to the first finger groove 7, and the lug 18 is fixedly connected with the rotating shaft 19.

Among the various parts of this application, including but not limited to the second finger groove, first finger groove, the top board is provided with the blotter around the outside of top board two, promotes the comfort.

In this embodiment, as shown in fig. 1 and 4, a protruding frame 13 is fixed on the seat plate 1, the protruding frame 13 and the first finger groove 7 are located on two sides of the second finger groove 2, two sets of guide rollers 14 are arranged on the protruding frame 13 side by side, two guide rollers 14 are arranged on each set, one end of the second finger groove 2 pointing to the protruding frame 13 is fixedly connected with one end of a pull rope 12, the pull rope 12 can be respectively wound on the two sets of guide rollers 14, finger bone shaping mechanisms are arranged on two sides of the outer side wall of the first finger groove 7 and the second finger groove 2, and one end of the pull rope 12 far away from the second finger groove 2 can be respectively connected with the finger bone shaping mechanisms on the same side of the first finger groove 7 and the second finger groove 2 through hooks.

In this embodiment, as shown in fig. 1, fig. 2, fig. 4, fig. 5, fig. 6, and fig. 7, the joint shaping mechanism is disposed at the lower side of the connection portion of the first finger slot 7 and the second finger slot 2, the joint shaping mechanism includes the carriage 4, the carriage 4 is in a "[" shape with an upward opening, a slider 17 is fixed on the bottom surface of the middle portion of the carriage 4, a sliding slot 16 is disposed on the seat plate 1 at a position corresponding to the connection portion of the first finger slot 7 and the second finger slot 2, the slider 17 is slidably connected in the sliding slot 16, and the sliding slot 16 runs parallel to the rotation shaft 19.

In this embodiment, as shown in fig. 1, fig. 2, fig. 4, and fig. 5, the joint reshaping mechanism further includes two brackets 6 fixed on two side plates outside the first finger groove 7, the two brackets 6 are symmetrically arranged, the brackets 6 are connected with screws 5 in a threaded manner, the screws 5 are parallel to the rotating shaft 19, the two screws 5 share a central axis and are located between the first finger groove 7 and the second finger groove 2, a second top plate 9 is fixed at an opposite end of each of the two screws 5, and a first gear 11 is fixed at an opposite end of each of the two screws 5.

In this embodiment, as shown in fig. 1, 2 and 5, two gears 20 are fixed at both ends of the rotating shaft 19, the two gears 20 correspond to the two gears 11 one by one, the gear 20 is located at the lower side of the corresponding gear 11, the inner sides of both ends of the carriage 4 are fixedly and rotatably linked with the tooth posts 10, the two tooth posts 10 share a central axis, the tooth posts 10 are parallel to the screw 5, the two tooth posts 10 correspond to the two screw 5 one by one, the two tooth posts 10 are located at both sides of the first finger groove 7 and the second finger groove 2, and the tooth posts 10 can be simultaneously engaged with and connected with the corresponding gear 11 and the gear 20.

In this embodiment, as shown in fig. 1, 3 and 4, the phalange plastic mechanisms on the first finger groove 7 and the second finger groove 2 are the same, taking the phalange plastic mechanism on the second finger groove 2 as an example, the phalange plastic mechanisms on both sides of the outer side wall of the second finger groove 2 are symmetrically arranged, the phalange plastic mechanism includes a supporting plate 3 fixed on the outer side wall of the second finger groove 2, the supporting plate 3 is parallel to the seat plate 1, a guide frame 25 is fixed on the side of the supporting plate 3 away from the second finger groove 2, a rack 24 is slidably connected on the guide frame 25, the rack 24 is perpendicular to the different surface of the rotating shaft 19, one end of the rack 24 pointing to the protruding frame 13 can be fixedly connected with the pulling rope through a hook, one end of the rack 24 departing from the protruding frame 13 is connected with a bump 27 through a second spring 26, and the bump 27 is fixed on the supporting plate.

In this embodiment, as shown in fig. 1, 3 and 4, a third gear 28 is connected to the supporting plate 3 in a fixed-axis rotation manner, the third gear 28 is engaged with the rack 24, and the third gear 28 is fixed with the cam 23.

In this embodiment, as shown in fig. 1, 3 and 4, a push rod 29 penetrates through a side wall of the second finger groove 2, the push rod 29 can slide on the side wall of the second finger groove 2, the push rod 29 is perpendicular to the rack 24, a pressing plate 22 is fixed at one end of the push rod 29, which points to the rack 24, the pressing plate 22 is in abutting contact with the cam 23, the pressing plate 22 is connected with an outer side wall of the second finger groove 2 through a spring one 21, and a top plate one 8 is fixed at one end of the push rod 29, which points to the inside of the second finger groove 2.

When the palm phalangeal joint correction machine for orthopedics of this application is used, carry out following use and introduce:

the method comprises the following steps: as shown in fig. 1 and fig. 2, when the finger joints of a patient are convexly curved to the left and need to be corrected, the pulling rope 12 is passed through the middle position of the two wire guiding wheels 14 in the manner shown in fig. 1, and is wound around the wire guiding wheel 14 on the right side of the protruding frame 13, and is respectively connected with the rack 24 in the finger bone shaping mechanism on the right side of the first finger groove 7 and the second finger groove 2 through the hook after 180 degrees, then the carriage 4 is pulled to the right, so that the carriage 4 drives the sliding block 17 to move to the right in the sliding groove 16, the right movement of the carriage 4 synchronously drives the two tooth posts 10 to move to the right, so that the tooth post 10 on the right end of the carriage 4 is disengaged from the corresponding gear one 11 and gear two 20, further the gear two 20 on the right end of the rotating shaft 19 has no transmission function with the corresponding gear one 11, and the tooth post 10 on the left end of the carriage 4 moves to the right and then approaches, so that the gear column 10 is meshed with the corresponding first gear 11 and the second gear 20 at the same time, and at the moment, the second gear 20 at the left end of the rotating shaft 19 can be in transmission connection with the corresponding first gear 11 through the gear column 10;

as shown in fig. 4 and 5, when the finger phalangeal joint of a patient needs to be corrected by bending and deforming to the right, the pulling rope 12 is passed through the middle position of the two sets of wire guiding wheels 14 in the manner shown in fig. 4, and is wound around the wire guiding wheels 14 on the left side of the protruding frame 13, and is connected with the rack 24 in the finger bone shaping mechanism on the left side of the first finger groove 7 and the second finger groove 2 through the hook after 180 degrees, and then the carriage 4 is pulled to the left, so that the carriage 4 drives the sliding block 17 to move to the left in the sliding groove 16, the left movement of the carriage 4 synchronously drives the two tooth posts 10 to move to the left, so that the tooth post 10 on the left end of the carriage 4 is disengaged from the corresponding gear one 11 and gear two 20, further the gear two 20 on the left end of the rotating shaft 19 has no transmission function with the corresponding gear one 11, and the tooth post 10 on the right end of the carriage 4 moves to the left and approaches to, so that the gear column 10 is meshed with the corresponding first gear 11 and the second gear 20 at the same time, and at this time, the second gear 20 at the right end of the rotating shaft 19 can be in transmission connection with the corresponding first gear 11 through the gear column 10.

Above-mentioned using-way can realize adjusting this device's correction direction according to the crooked direction of disease finger, and it is convenient to adjust easy operation moreover, and then makes this device conveniently use with the disease of different finger crooked directions, improves application range and practicality.

Step two: taking the case of the finger phalangeal joint of the patient in fig. 1 and 2 with a convex left curvature and deformation requiring correction as an example, according to the adjustment operation described in step one, the pulling rope 12 is connected to the rack 24 of the phalangeal joint on the right side of the first finger groove 7 and the second finger groove 2, and the toothed column 10 on the left end of the carriage 4 is engaged with the second gear 20 on the left end of the rotating shaft 19 and the corresponding first gear 11, and then the finger of the patient requiring correction is simultaneously clamped in the first finger groove 7 and the second finger groove 2, and the finger points to the ledge 13, the convex side of the finger curved knuckle is opposite to the second top plate 9 on the left side of fig. 1, the concave sides of the finger on both sides of the finger are opposite to the first top plate 8 on the right side of the first finger groove 7 and the second finger groove 2, and in the initial state, i.e. when the finger is not bent, the second finger groove 2 is flush with the first finger groove 7, and as shown in fig. 6, the rack 24 is not under the pulling, after the finger is placed, the joint of the finger is bent, at this time, as shown in fig. 7, the phalanx on the side of the finger head drives the second finger groove 2 to rotate around the central axis of the shaft 19 anticlockwise, the second finger groove 2 rotates around the central axis of the shaft 19 anticlockwise and drives the shaft 19 to rotate anticlockwise, so that the shaft 19 synchronously drives the second gear 20 at the left end to rotate, as shown in fig. 2, the rotation of the second gear 20 drives the first gear 11 to rotate through the tooth column 10 at the left end of the carriage 4, so that the first gear 11 drives the corresponding screw 5 to rotate, the rotation of the screw 5 drives the screw 5 to move rightwards through the thread transmission effect between the screw 5 and the bracket 6, so that the screw 5 applies thrust to the inward concave side of the finger joint through the second top plate 9, and further the joint tends to be flat, so as to realize the correction of the joint during the force application movement of the finger, on one hand, on the other hand, the device helps the fingers to keep a correct force application state when exerting force, and is beneficial to the stability of hand correction and rehabilitation;

the second finger groove 2 rotates anticlockwise around the central axis of the rotating shaft 19, meanwhile, the pull rope 12 applies a pulling force to the racks 24 on the right sides of the first finger groove 7 and the second finger groove 2, as shown in fig. 3, after the racks 24 are pulled by the pull rope 12, the second spring 26 is stretched, so that the second spring 26 obtains a restoring force, when the racks 24 move upwards along with the pull rope 12 in fig. 3, the third gear 28 is driven to rotate anticlockwise around the central axis of the third gear 28 by using the tooth transmission action between the racks 24 and the third gear 28, the anticlockwise rotation of the third gear 28 synchronously drives the cam 23 to rotate anticlockwise, so that the side wall of the cam 23 applies a leftward extrusion force to the corresponding pressure plate 22, so that the pressure plate 22 compresses the first spring 21, so that the first spring 21 obtains a restoring force, and simultaneously the pressure plate 22 synchronously drives the ejector rod 29 to move leftwards, and the left movement of the ejector rod 29 applies a leftward thrust force, therefore, the phalanges move in the outward convex direction, and the right pushing force applied to the joints by the second top plate 9 is matched, so that the finger joints which protrude outwards leftwards are straightened, the activity degree of the second finger grooves 2 can be controlled by patients, the automatic adjustment can be realized according to the actual situation, the extrusion force of the first top plate 8 and the second top plate 9 on the fingers can be realized, and the safety guarantee is improved;

step three: when the finger head loosens the second finger groove 2, the second finger groove 2 does not have a pulling force effect on the pulling rope 12 at the moment, so that the rack 24 is not under the pulling force effect of the pulling rope 12, the rack 24 moves downwards and resets under the restoring force effect of the second spring 26, the third gear 28 is driven to rotate clockwise around the central axis of the third gear 28 under the tooth transmission effect between the rack 24 and the third gear 28, the clockwise rotation of the third gear 28 synchronously drives the cam 23 to rotate clockwise, the side wall of the cam 23 does not exert force on the corresponding pressing plate 22, and the pressing plate 22 drives the first top plate 8 to move rightwards and reset under the restoring force effect of the first spring 21 through the ejector rod 29, so that the first top plate 8 does not exert extrusion force on the phalanx;

when the rack 24 is reset, the rack 24 applies a pulling force to the second finger groove 2 through the pulling rope 12, and drives the second finger groove 2 to rotate clockwise in fig. 7 and reset, the second finger groove 2 rotates clockwise around the central axis of the rotating shaft 19 and drives the rotating shaft 19 to rotate clockwise, so that the rotating shaft 19 synchronously drives the gear two 20 at the left end to rotate reversely, as shown in fig. 2, the rotation of the gear two 20 drives the gear one 11 to rotate reversely through the tooth post 10 at the left end of the sliding frame 4, so that the gear one 11 drives the corresponding screw 5 to rotate reversely, the reverse rotation of the screw 5 drives the screw 5 to move leftwards through the screw transmission action between the screw 5 and the bracket 6, so that the screw 5 drives the top plate two 9 to move leftwards and reset, so that the top plate two 9 does not apply an extrusion force to the finger joint, after the top plate one 8 and the top plate two 9 are reset, the fingers are not applied with, therefore, smooth blood circulation of the fingers is ensured, and the finger can be corrected and recovered as soon as possible through the bending movement of the reciprocating circulation of the fingers as described in the step two and the step three.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.