CN214596412U - Finger motion function rehabilitation device - Google Patents
Finger motion function rehabilitation device Download PDFInfo
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- CN214596412U CN214596412U CN202022406303.7U CN202022406303U CN214596412U CN 214596412 U CN214596412 U CN 214596412U CN 202022406303 U CN202022406303 U CN 202022406303U CN 214596412 U CN214596412 U CN 214596412U
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Abstract
The utility model provides a finger motion function rehabilitation device, relating to the field of medical appliances. The finger motion function rehabilitation device comprises an arm supporting mechanism, an SMA wire, a rope and a displacement amplifying mechanism. The arm supporting mechanism is suitable for being fixed on an arm; two ends of the SMA wire penetrate through the front end of the arm supporting mechanism to the rear end of the arm supporting mechanism and are fixed at the rear end of the arm supporting mechanism respectively, and the two ends of the SMA wire are suitable for being connected with the anode and the cathode of a power supply respectively; the front end of the displacement amplification mechanism is suitable for being connected with one end of the rope, the rear end of the displacement amplification mechanism is suitable for being connected with the part of the SMA wire exposed out of the front end of the arm support mechanism, and the displacement amplification mechanism is used for amplifying the contraction displacement of the SMA wire in the electrified state to a set multiple and then transmitting the contraction displacement to the rope; wherein the other end of the cord is adapted to be connected to a distal segment of a finger.
Description
Technical Field
The utility model relates to the field of medical equipment, particularly, relate to a finger motion function rehabilitation device.
Background
Stroke, also known as "stroke," refers to a group of diseases in which brain tissue is damaged due to sudden rupture of a patient's cerebral blood vessels, or due to blockage of blood vessels, so that blood cannot flow into the brain. The disability rate is high, and the defect of the hand movement function caused by the disability rate brings inconvenience to the daily life of a patient. Thus, many rehabilitation machines have been created that are associated with the rehabilitation of hand functions.
For hand motor function damage caused by central paralysis possibly occurring in a cerebral apoplexy patient, the brain function of the patient can be remodeled through neurorehabilitation therapy in medicine. Usually, a puppet lifting cooperative exercise training method is adopted through a specific device to induce combined reaction, and after a plurality of months of nerve rehabilitation treatment, the patient can gradually recover the motion function of the fingers. Therefore, in order to meet the above-mentioned needs, researchers have begun to research small and portable rehabilitation arms.
The driving device in the rehabilitation machine is driven by pneumatic, hydraulic, electric and intelligent materials, and the like, and is widely used due to the high driving speed of the pneumatic driving mode. However, the pneumatic and hydraulic driving methods have many and complicated auxiliary devices, the reliability and the power-weight ratio of the system are low, and the system is inconvenient to carry.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving current hand motion rehabilitation device's actuating mechanism structure complicacy to a certain extent, reliability and merit are than lower, the inconvenient problem of carrying.
In order to solve at least one problem, the utility model provides a finger motion function rehabilitation device, include:
the arm supporting mechanism is suitable for being fixed on an arm;
the two ends of the SMA wire penetrate from the front end of the arm supporting mechanism to the rear end of the arm supporting mechanism and are fixed at the rear end of the arm supporting mechanism respectively, and the two ends of the SMA wire are suitable for being connected with the anode and the cathode of a power supply respectively;
a rope; and
the front end of the displacement amplification mechanism is suitable for being connected with one end of the rope, the rear end of the displacement amplification mechanism is suitable for being connected with the part of the SMA wire exposed out of the front end of the arm support mechanism, and the displacement amplification mechanism is used for amplifying the contraction displacement of the SMA wire in the electrified state to a set multiple and then transmitting the contraction displacement to the rope;
wherein the other end of the cord is adapted to be connected to a distal segment of a finger.
Further, the displacement amplification mechanism comprises a box body, a cylinder and a slide block mechanism;
the sliding block mechanism and the cylinder are arranged in the box body, the sliding block mechanism is connected to the length direction of the box body in a sliding mode, and the rear end of the sliding block mechanism is connected with the part, exposed out of the SMA wire, of the front end of the arm supporting mechanism;
the box body is provided with five cylinders, a first cylinder, a second cylinder, a third cylinder, a fourth cylinder and a fifth cylinder are sequentially arranged at intervals along the direction from the front end to the rear end of the box body, the first cylinder and the second cylinder are fixed with the box body, and the third cylinder, the fourth cylinder and the fifth cylinder are connected with the front end of the sliding block mechanism;
one end of the rope is fixed at the front end of the box body, and the other end of the rope sequentially winds the fifth cylinder, the first cylinder, the fourth cylinder, the second cylinder and the third cylinder and then penetrates out of the front end of the box body.
Furthermore, the box body comprises a base and a box cover, a front baffle and a rear baffle are respectively fixed at the front end and the rear end of the base, the front end of the box cover is detachably connected with the front baffle, the rear end of the box cover is detachably connected with the rear baffle, the rear baffle is provided with a notch, and the part of the SMA wire exposed out of the front end of the arm supporting mechanism is suitable for penetrating through the notch to be connected with the rear end of the sliding block mechanism;
the first cylinder and the second cylinder are fixed with the base respectively, and a first groove body and a second groove body which are matched with the first cylinder and the second cylinder respectively are formed in the box cover.
Furthermore, the sliding block mechanism comprises two first sliding blocks, two second sliding blocks and two third sliding blocks, the two first sliding blocks are respectively fixed at two ends of the third cylinder, the fourth cylinder and the fifth cylinder, the rear end of the third sliding block is connected with the part, exposed out of the front end of the arm supporting mechanism, of the SMA wire, and the second sliding block connects the fifth cylinder with the third sliding block.
Further, the finger motion function rehabilitation device further comprises a glove, the displacement amplification mechanism is connected with the glove, one end, far away from the displacement amplification mechanism, of the rope is suitable for being connected with the front end of the finger sleeve of the glove, a plurality of aluminum sleeves are arranged on the back side and the palm side of the finger sleeve of the glove, and the aluminum sleeves are used for allowing the rope to penetrate through.
Further, the SMA wire is provided with ten, the rope is provided with ten, the displacement amplification mechanism is provided with ten, every two the SMA wire, every two the rope and every two the displacement amplification mechanism constitute the recovered unit body of finger, the recovered unit body of finger is used for controlling the extension and the bucking of a finger, one in the recovered unit body of finger displacement amplification mechanism, one SMA wire and one the palm side of the finger is corresponded to the rope, another in the recovered unit body of finger displacement amplification mechanism, another SMA wire and another the dorsal part of the finger is corresponded to the rope.
Furthermore, the arm supporting mechanism comprises a fabric piece, two wire connecting rings, an elastic sleeve and a plastic pipe, wherein the two wire connecting rings are respectively arranged at two ends of the fabric piece, the elastic sleeve is used for fixing the fabric piece on an arm, the plastic pipe sequentially penetrates through the wire connecting ring at the front end of the fabric piece, the fabric piece and the wire connecting ring at the rear end of the fabric piece, and the plastic pipe is used for allowing the SMA wire to penetrate through.
Compared with the prior art, the utility model provides a pair of finger motion function rehabilitation device has but not be limited to following technological effect:
the two ends of the SMA wire penetrate through the front end of the arm supporting mechanism to the rear end of the arm supporting mechanism and are fixed to the rear end of the arm supporting mechanism, the part of the SMA wire exposed out of the front end of the arm supporting mechanism is connected with the rear end of the displacement amplification mechanism, under the condition that the two ends of the SMA wire are respectively connected with the positive electrode and the negative electrode of a power supply, the SMA wire generates phase change contraction due to temperature rise, then the bending part of the SMA wire contracts and moves backwards (moves towards the direction of the arm supporting mechanism), the contraction displacement of the SMA wire is amplified to a set multiple through the displacement amplification mechanism and then is transmitted to the rope, and the rope drives a finger to extend or buckle in a larger range. The problems of complex structure, low reliability and power-weight ratio and inconvenient carrying of a driving mechanism of the conventional hand motion rehabilitation device are solved.
Drawings
Fig. 1 is a schematic structural view of a finger exercise function rehabilitation device according to an embodiment of the present invention;
FIG. 2 is a schematic exploded view of a displacement amplification mechanism according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a displacement amplification mechanism according to an embodiment of the present invention connected to a rope and an SMA wire;
FIG. 4 is a schematic structural diagram of the connection of SMA wires with an arm support mechanism according to an embodiment of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Further, the direction along the arm in the drawing is the up-down direction, and the elbow-to-wrist direction of the arm indicates the front, and the wrist-to-elbow direction of the arm indicates the front indicates the rear; the direction from the palm side to the back side of the hand represents the upper side, and the direction from the back side to the palm side of the hand represents the lower side.
Referring to fig. 1, the embodiment provides a finger movement function rehabilitation device, which is characterized by comprising an arm support mechanism 1, an SMA wire 2, a rope 3 and a displacement amplification mechanism 4.
The arm supporting mechanism 1 is suitable for being fixed on an arm; two ends of the SMA wire 2 respectively penetrate from the front end of the arm supporting mechanism 1 to the rear end of the arm supporting mechanism 1 and are fixed at the rear end of the arm supporting mechanism 1, and two ends of the SMA wire 2 are respectively suitable for being connected with the anode and the cathode of a power supply; the front end of the displacement amplification mechanism 4 is suitable for being connected with one end of the rope 3, the rear end of the displacement amplification mechanism 4 is suitable for being connected with the part of the SMA wire 2 exposed out of the front end of the arm support mechanism 1, and the displacement amplification mechanism 4 is used for amplifying the contraction displacement of the SMA wire 2 in the electrified state to a set multiple and then transmitting the contraction displacement to the rope 3; wherein the other end of the cord 3 is adapted to be connected to a distal segment of a finger.
It can be understood that, after the two ends of the SMA wire 2 are folded in half, the two ends of the SMA wire 2 respectively penetrate from the front end of the arm support mechanism 1 to the rear end of the arm support mechanism 1 and are fixed at the rear end of the arm support mechanism 1, the bending part of the SMA wire 2 is connected with the rear end of the displacement amplification mechanism 4, under the condition that the two ends of the SMA wire 2 are respectively connected with the positive electrode and the negative electrode of a power supply, the SMA wire 2 undergoes phase change contraction due to temperature rise, and then the bending part of the SMA wire 2 contracts and moves backwards (moves towards the direction of the arm support mechanism 1), the contraction displacement of the SMA wire 2 is amplified to a set multiple by the displacement amplification mechanism 4 and then is transmitted to the rope 3, and then the rope 3 drives the finger to extend or buckle in a larger amplitude.
Compared with the traditional hand motion rehabilitation device, the finger motion function rehabilitation device provided by the embodiment realizes the deformation of the SMA wire 2 through the electrification and the outage of the SMA wire 2, and then the rope 3 is controlled to drive the finger to move under the transmission of the displacement amplification mechanism 4, so that the structure is simple, the driving is reliable, and the carrying is convenient.
Referring to fig. 2 and 3, preferably, the displacement amplification mechanism 4 includes a case 41, a cylinder and a slider mechanism; the sliding block mechanism and the column body are arranged inside the box body 41, the sliding block mechanism is connected with the length direction of the box body 41 in a sliding mode, and the rear end of the sliding block mechanism is connected with the part, exposed out of the front end of the arm supporting mechanism 1, of the SMA wire 2; the five cylinders are arranged, the first cylinder 51, the second cylinder 52, the third cylinder 53, the fourth cylinder 54 and the fifth cylinder 55 are sequentially arranged at intervals along the direction from the front end to the rear end of the box body 41, the first cylinder 51 and the second cylinder 52 are fixed with the box body 41, and the third cylinder 53, the fourth cylinder 54 and the fifth cylinder 55 are connected with the front end of the sliding block mechanism; one end of the rope 3 is fixed at the front end of the box body 41, and the other end of the rope 3 sequentially winds around the fifth cylinder 55, the first cylinder 51, the fourth cylinder 54, the second cylinder 52 and the third cylinder 53 and then penetrates out of the front end of the box body 41.
Here, the rear end of the slider mechanism is connected with the bent portion of the SMA wire 2, by "one end of the rope 3 is fixed at the front end of the box body 41, the other end of the rope 3 sequentially passes through the front end of the box body 41 after passing around the fifth cylinder 55, the first cylinder 51, the fourth cylinder 54, the second cylinder 52 and the third cylinder 53", and then the other end of the rope 3 is fixed at the distal finger of the finger, the rope 3 is wound three times in the box body 41 and then extends out of the box body 41 to be fixed at the distal finger of the finger, such winding manner of the rope 3 at the position of the box body 41 is matched with the slider mechanism, so that when the SMA wire 2 is pulled to move backwards by the slider mechanism, the slider mechanism further increases the rope 3 of the three turns by six times of the contraction displacement of the SMA wire 2 (this is because the first cylinder and the second cylinder are fixed, the slider mechanism drives the third cylinder 53, the fourth cylinder 54 and the fifth cylinder 55 to move backwards synchronously, so that the rope 3 of the three turns increases the contraction displacement of the SMA wire 2 by six times, and then the rope 3 outside the shell 41 is shortened by six times of the contraction displacement of the SMA wire 2, and the rope 3 drives the finger to move.
It will be understood that the amplification factor can be increased by increasing the number of windings of the rope 3 in the displacement amplification mechanism 4, and when the number of windings is n, the displacement amount of the free end of the rope 3 (i.e., the end of the rope 3, i.e., the end connected to the finger) is 2n times the amount of contraction of the SMA wire.
It will be appreciated that the number of columns may be other than the five ones described above, since the amount of displacement of the free end of the cord 3 is not determined by the number of columns, but by the number of windings.
Referring to fig. 2, preferably, the box body 41 includes a base 412 and a box cover 411, a front baffle 4121 and a rear baffle 4122 are respectively fixed at the front end and the rear end of the base 412, the front end of the box cover 411 is detachably connected with the front baffle 4121, the rear end of the box cover 411 is detachably connected with the rear baffle 4122, the rear baffle 4122 is provided with a notch 4123, and the part of the SMA wire 2 exposed at the front end of the arm support mechanism 1 is suitable for passing through the notch 4123 to be connected with the rear end of the slider mechanism; the first column 51 and the second column 52 are fixed to the base 412, and the box cover 411 is provided with a first groove and a second groove which are matched with the first column 51 and the second column 52.
Here, through carrying out split type design to box body 41, can be convenient for twine rope 3 on the cylinder with certain order, simultaneously, also be convenient for SMA silk 2 and slider mechanism's being connected, simultaneously, also conveniently design in order to guarantee slider mechanism's motion to the structure of box body 41 inside.
It will be appreciated that the detachable connection of the cover 411 to the front panel 4121 and the cover 411 to the rear panel 4122 may be by screw connection.
Referring to fig. 2, preferably, the slider mechanism includes two first sliders 61, two second sliders 62 and two third sliders 63, the two first sliders 61 are respectively fixed to two ends of the third column 53, the fourth column 54 and the fifth column 55, the rear end of the third slider 63 is connected to the portion of the SMA wire 2 exposed at the front end of the arm support mechanism 1, and the second slider 62 connects the fifth column 55 to the third slider 63.
Here, by providing one first slider 61 at each end of the third, fourth and fifth cylinders 53, 54, 55, the cylinder is prevented from falling off after the rope 3 is wound, and the structure is made compact.
Here, the slider hole 631 is formed at the rear end of the third slider 63, and the connection between the SMA wire 2 and the slider mechanism is achieved by passing the bent end of the SMA wire 2 through the slider hole 631, so that the connection is firmer. Of course, a baffle hole for the rope 3 to pass through may be formed at the front baffle 4121 to provide a guide for the rope 3 to pass into or out of the box 41.
It will be appreciated that one end of the cord 3 may be secured to the front end of the housing 41, particularly at the front bezel 4121, by screws, by selecting different lengths of cord 3, or by leaving a suitable length of cord 3 secured.
Referring to fig. 1, preferably, the finger exercise function rehabilitation device further includes a glove, the displacement amplification mechanism 4 is connected to the glove, one end of the rope 3 far from the displacement amplification mechanism 4 is suitable for being connected to the front end of the finger stall of the glove, and the dorsal side and the palm side of the finger stall of the glove are provided with a plurality of aluminum sleeves for the rope 3 to pass through.
Here, rope 3 not only can be directly be connected with the finger, also can be through being connected with gloves, and then the motion of controlling the finger through gloves, through this gloves, can stitch rope 3 on the gloves by the diameter, also can fix displacement mechanism 4 of amplification on the gloves simultaneously, like this, more portable, when needing to carry out the rehabilitation training to patient's finger, wear the gloves on the back on hand, again with arm supporting mechanism 4 fix on the arm can, it is more convenient.
Here, a plurality of aluminum sleeves are provided on the palm side and the back side of the finger stall of the glove, respectively, and the aluminum sleeves can be sewn on the glove to guide the direction of the cord 3 so as to be always kept in the sagittal plane where the center line of the finger is located.
Referring to fig. 1, preferably, the SMA wires 2 are provided with ten, the ropes 3 are provided with ten, the displacement amplification mechanisms 4 are provided with ten, every two SMA wires 2, every two ropes 3 and every two displacement amplification mechanisms 4 form a finger rehabilitation unit body, the finger rehabilitation unit body is used for controlling extension and flexion of one finger, one displacement amplification mechanism 4, one SMA wire 2 and one rope 3 in the finger rehabilitation unit body correspond to the palm side of the finger, and the other displacement amplification mechanism 4, the other SMA wire 2 and the other rope 3 in the finger rehabilitation unit body correspond to the back side of the finger.
Here, each finger rehabilitation unit body is used for controlling the movement of one finger, taking the index finger as an example, the rope 3 on the back side of the index finger can pull the index finger to stretch, the rope 3 on the palm side of the index finger can pull the index finger to bend, and the other fingers can do the same. And electrifying two ends of different SMA wires 2 through a power supply, and further controlling corresponding fingers to stretch or bend.
Referring to fig. 4 and 5, preferably, the arm support mechanism 1 includes a fabric member 11, two wire connection rings 12, an elastic sleeve 13 and a plastic tube 14, wherein the two wire connection rings 12 are respectively disposed at both ends of the fabric member 11, the elastic sleeve 13 is used for fixing the fabric member 11 to the arm, the plastic tube 14 sequentially passes through the wire connection rings 12 at the front end of the fabric member 11, the fabric member 11 and the wire connection rings 12 at the rear end of the fabric member 11, and the plastic tube 14 is used for the SMA wire 2 to pass through.
Here, the fabric piece 11 and the plastic pipe 14 have greater flexibility, can fit the shape of an arm, and are tightly attached and fixed on the arm under the constraint of the elastic oversleeve 13, so that the volume of the whole device and the use amount of the SMA wire 2 are reduced to the maximum extent, and meanwhile, the elastic oversleeve 13 can be worn by people with different arm thicknesses, and the application range is wide. Meanwhile, the elastic sleeve 13 can also fix the plastic tube 14 and the SMA wire 2 in the fabric piece 11 to prevent the plastic tube 14 and the SMA wire 2 from deflecting. The plastic tube 14 fixed in the fabric piece 11 plays a role in guiding the SMA wires 2, and the SMA wires 2 in the plastic tube 14 are protected from scalding the arms when being electrified and heated.
Here, after two ends of the SMA wire 2 penetrate out of the rear end of the plastic tube 14, two ends of the SMA wire 2 can be fixed at the wiring ring 12 at the rear end through screws, and meanwhile, eyelet nails 9 can be arranged at an outlet of the SMA wire at the front end of the wiring ring 12 to prevent the outlet edge of the SMA wire at the front end of the wiring ring 12 from being locally heated and melted due to the phase change temperature rise after the SMA wire is electrified. And facilitates the penetration of both ends of the SMA wire 2.
The terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or an implicit indication of the number of technical features indicated. Thus, features defined as "first," "second," "third," and "fourth" may explicitly or implicitly include at least one of the features.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Without departing from the spirit and scope of the present disclosure, those skilled in the art can make various changes and modifications, which will fall into the scope of the present disclosure.
Claims (7)
1. A finger motor function rehabilitation device, comprising:
the arm supporting mechanism (1) is suitable for being fixed on an arm;
the two ends of the SMA wire (2) respectively penetrate from the front end of the arm supporting mechanism (1) to the rear end of the arm supporting mechanism (1) and are fixed at the rear end of the arm supporting mechanism (1), and the two ends of the SMA wire (2) are respectively suitable for being connected with the anode and the cathode of a power supply;
a rope (3); and
the front end of the displacement amplification mechanism (4) is suitable for being connected with one end of the rope (3), the rear end of the displacement amplification mechanism is suitable for being connected with the part of the SMA wire (2) exposed at the front end of the arm support mechanism (1), and the displacement amplification mechanism (4) is used for amplifying the contraction displacement of the SMA wire (2) in a power-on state to a set multiple and then transmitting the contraction displacement to the rope (3);
wherein the other end of the rope (3) is suitable for being connected with a remote knuckle of a finger.
2. The finger motor function rehabilitation device according to claim 1, wherein the displacement amplification mechanism (4) comprises a box (41), a cylinder and a slider mechanism;
the sliding block mechanism and the cylinder are arranged in the box body (41), the sliding block mechanism is connected to the length direction of the box body (41) in a sliding mode, and the rear end of the sliding block mechanism is connected with the part, exposed out of the front end of the arm supporting mechanism (1), of the SMA wire (2);
the five cylinders are arranged, a first cylinder (51), a second cylinder (52), a third cylinder (53), a fourth cylinder (54) and a fifth cylinder (55) are sequentially arranged at intervals along the direction from the front end to the rear end of the box body (41), the first cylinder (51) and the second cylinder (52) are fixed with the box body (41), and the third cylinder (53), the fourth cylinder (54) and the fifth cylinder (55) are connected with the front end of the sliding block mechanism;
one end of the rope (3) is fixed at the front end of the box body (41), and the other end of the rope (3) sequentially winds around the fifth cylinder (55), the first cylinder (51), the fourth cylinder (54), the second cylinder (52) and the third cylinder (53) and then penetrates out of the front end of the box body (41).
3. The finger exercise function rehabilitation device according to claim 2, wherein the box body (41) comprises a base (412) and a box cover (411), a front baffle plate (4121) and a rear baffle plate (4122) are respectively fixed at the front end and the rear end of the base (412), the front end of the box cover (411) is detachably connected with the front baffle plate (4121), the rear end of the box cover (411) is detachably connected with the rear baffle plate (4122), the rear baffle plate (4122) is provided with a notch (4123), and the part of the SMA wire (2) exposed at the front end of the arm support mechanism (1) is suitable for being connected with the rear end of the slider mechanism through the notch (4123);
the first cylinder (51) and the second cylinder (52) are fixed to the base (412) respectively, and a first groove body and a second groove body which are matched with the first cylinder (51) and the second cylinder (52) respectively are formed in the box cover (411).
4. The finger motor function rehabilitation device according to claim 2, wherein the slider mechanism includes a first slider (61), a second slider (62) and a third slider (63), two first sliders (61) are provided, the two first sliders (61) are respectively fixed to two ends of the third column (53), the fourth column (54) and the fifth column (55), a rear end of the third slider (63) is connected to a portion of the SMA wire (2) exposed at a front end of the arm support mechanism (1), and the second slider (62) connects the fifth column (55) to the third slider (63).
5. The finger motor function rehabilitation device according to any one of claims 1 to 4, further comprising a glove, wherein the displacement amplification mechanism (4) is connected with the glove, one end of the rope (3) far away from the displacement amplification mechanism (4) is suitable for being connected with the front end of the finger stall of the glove, and a plurality of aluminum sleeves are arranged on both the dorsal side and the palmar side of the finger stall of the glove and used for the rope (3) to pass through.
6. The finger motor function rehabilitation device according to any one of claims 1 to 4, ten SMA wires (2) are arranged, ten ropes (3) are arranged, the displacement amplification mechanisms (4) are provided with ten, every two SMA wires (2), every two ropes (3) and every two displacement amplification mechanisms (4) form a finger rehabilitation unit body, the finger rehabilitation unit body is used for controlling extension and flexion of one finger, one displacement amplification mechanism (4), one SMA wire (2) and one rope (3) in the finger rehabilitation unit body correspond to the palm side of the finger, the other displacement amplification mechanism (4), the other SMA wire (2) and the other rope (3) in the finger rehabilitation unit body correspond to the back side of the finger.
7. The finger motor function rehabilitation device according to any one of claims 1 to 4, wherein the arm support mechanism (1) includes a fabric member (11), a wire connection ring (12), an elastic sleeve (13) and a plastic tube (14), the two wire connection rings (12) are respectively provided at both ends of the fabric member (11), the elastic sleeve (13) is used for fixing the fabric member (11) on the arm, the plastic tube (14) is sequentially passed through the wire connection ring (12) at the front end of the fabric member (11), the fabric member (11) and the wire connection ring (12) at the rear end of the fabric member (11), and the plastic tube (14) is used for passing the SMA wire (2).
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| CN202022406303.7U CN214596412U (en) | 2020-10-26 | 2020-10-26 | Finger motion function rehabilitation device |
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| CN112263437A (en) * | 2020-10-26 | 2021-01-26 | 东北林业大学 | Finger motion function rehabilitation device |
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| CN112263437A (en) * | 2020-10-26 | 2021-01-26 | 东北林业大学 | Finger motion function rehabilitation device |
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Effective date of registration: 20221207 Address after: 150066 A 4, No. 20 Xinghai Road, Ping Fang District, Harbin, Heilongjiang. Patentee after: Harbin dujiaoxian Technology Co.,Ltd. Address before: 150040 No. 26 Hexing Road, Xiangfang District, Heilongjiang, Harbin Patentee before: NORTHEAST FORESTRY University |
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