CN109199651B

CN109199651B - Artificial limb receiving cavity of myoelectric hand

Info

Publication number: CN109199651B
Application number: CN201811111101.0A
Authority: CN
Inventors: 罗军; 薛景秋; 李静; 杨旭生; 徐海岛
Original assignee: Guangdong Lanwan Intelligent Technology Co ltd
Current assignee: Guangdong Lanwan Intelligent Technology Co ltd
Priority date: 2018-09-22
Filing date: 2018-09-22
Publication date: 2024-07-12
Anticipated expiration: 2038-09-22
Also published as: CN109199651A

Abstract

The invention relates to the technical field of artificial limbs in medical care instruments, in particular to an artificial limb receiving cavity of an myoelectric hand. The artificial limb receiving cavity is integrally formed through 3D printing and is formed by single-layer printing, and compared with a double-layer structure of a traditional receiving cavity, the artificial limb receiving cavity has the advantages of reducing weight and thickness. Meanwhile, the problem of line fixation is solved, the structure is compact, the appearance is attractive, and the broken limb appearance of different patients can be accurately customized. The artificial limb receiving cavity is made of nylon materials, has the characteristics of being warm in winter and cool in summer, and avoids the influence of supercooling or overheating on the use of patients during installation. The prosthetic socket is provided with the fixing part, the middle position of the fixing part is provided with the design which accords with the ergonomics of the arm, the prosthetic socket is ensured to be stably installed and seamlessly fixed at the elbow, and the prosthetic socket is prevented from falling off in the use process. The sweat blocking part is also arranged in the receiving cavity body, can prevent sweat from flowing to the myoelectric hand position, avoid the corrosion and damage of sweat to the myoelectric hand, and can also timely discharge the sweat.

Description

Artificial limb receiving cavity of myoelectric hand

Technical Field

The invention relates to the technical field of artificial limbs in medical care instruments, in particular to an artificial limb receiving cavity of an myoelectric hand.

Background

In the disabled people, the disabled people lose hands, small arms or whole arms, if one myoelectric hand is arranged, the self-care capacity of the disabled people can be enhanced, the whole attractive degree can be improved, the myoelectric hand is connected with the arms through a receiving cavity when the myoelectric hand is arranged, the movement of the myoelectric hand is controlled through the muscle movement of a large arm, the traditional artificial limb receiving cavity is divided into an inner layer and an outer layer, the inner layer is mostly made of low-temperature plates, the outer layer is generally made of hard reinforced plastics, a sensing structure device and a circuit of the myoelectric hand are positioned in a cavity formed by the inner layer and the outer layer, the position of an element for sensing muscle change is fixed and is difficult to finely adjust, and the muscle is not matched with the position of the sensing element any more under the conditions of atrophy, deformation and the like of a plurality of factors, so that the functionality of the hand is easy to lose. And the inner layer of the receiving cavity wraps the rest forearm and can sweat frequently to influence the health of arm skin, and sweat generated on the arm can flow to the myoelectric hand along the artificial limb receiving cavity to cause corrosion and damage to components of the myoelectric hand.

Disclosure of Invention

The invention aims to provide a 3D printing integrally formed myoelectric hand prosthetic socket, which abandons the double-layer structure of the traditional prosthetic socket, ensures compact and stable structure and solves the problem of circuit fixation.

The second purpose of the invention is to provide the myoelectric hand prosthetic socket which is warm in winter and cool in summer, and is made of nylon, so that the use experience of a patient is prevented from being influenced by supercooling or overheating during installation.

The invention further aims to provide the prosthetic socket for preventing the service life of the myoelectric hand from being influenced by sweat corrosion, the prosthetic socket is provided with a large-area hollowed-out part, ventilation is guaranteed, bacteria breeding in the prosthetic socket body is avoided, and meanwhile, the sweat blocking structure is arranged to prevent sweat from flowing to the myoelectric hand position along the interior of the myoelectric hand body to corrode the myoelectric hand.

The invention aims at providing the myoelectric hand prosthetic socket which accords with human engineering, ensures stable installation and seamless fixation of the prosthetic socket at an elbow, avoids the prosthetic socket from falling off in the use process, can be accurately customized according to the broken limb appearance of different patients, enlarges the use range and improves the use experience of the patients.

In order to achieve the above purpose, the prosthetic socket of the myoelectric hand according to the present invention is a 3D printing integrated single-layer socket with a hollow interior, the single-layer socket comprises a socket body 10, one end of the socket body 10 is provided with a fixing portion 20, the other end is provided with a myoelectric hand mounting portion 30, the fixing portion 20 has an ergonomic radian, and is fixedly buckled at an elbow joint, and the myoelectric hand mounting portion 30 is provided with a plurality of myoelectric hand mounting holes 31; a chip mounting part 11 is arranged at one end close to the fixing part 20, the chip mounting part 11 protrudes outwards and internally is provided with a sensing chip for sensing the muscle action of the elbow, a battery mounting groove 12 is arranged on the cavity wall of the middle section of the receiving cavity body 10, and a convex circuit tube 13 is arranged on the cavity wall between the chip mounting part 11 and the battery mounting groove 12; the sweat blocking component 40 is further arranged, the sweat blocking component 40 comprises a sweat blocking piece 41 arranged on the inner cross section of the receiving cavity body 10, a sweat blocking ring 42 which is arranged on the sweat blocking piece 41 and faces the fixing portion 20 and protrudes outwards, and a sealing buckle 43 arranged on the sweat blocking ring 42, the sealing buckle 43 comprises a sealing plate 44 and a plurality of buckle pieces 45, the buckle pieces 45 are fixed on the sealing plate 44 and are buckled on the periphery of the sweat blocking ring 42, the sealing plate 44 is sealed with the top of the sweat blocking ring 42, a first wire passing hole 46 is formed in the sweat blocking piece 41, and a second wire passing hole 47 with the inner diameter smaller than that of the first wire passing hole 46 is formed in the sealing plate 44.

Further, the side of the sweat blocking piece 41 provided with the sweat blocking ring 42 is an inclined surface, a plurality of converging surfaces 49 are arranged on the inclined surface, a drainage groove 48 is arranged in the converging surfaces 49, drainage holes 14 are arranged on the cavity wall of the receiving cavity body 10, and the positions of the drainage holes 14 correspond to the positions of the outlets of the drainage groove 48.

Further, the socket body 10 includes a front cavity 15 and a rear cavity 16, and the inner space of the rear cavity 16 to the front cavity 15 is gradually narrowed.

Further, the socket body 10 is provided with a hollowed-out portion 17, and the hollowed-out portion 17 is located on a cavity wall of the front cavity 15 opposite to the battery mounting groove 12.

Further, an induction chip fixing member 113 is mounted in the chip mounting portion 11, and the induction chip is fixed on the induction chip fixing member 113.

Further, one side of the chip mounting portion 11 is further provided with a plurality of adjusting bolts 111, the adjusting bolts 111 penetrate through the side of the chip mounting portion 11 and are in contact connection with the sensing chips, springs 112 with the same number as that of the adjusting bolts 111 are arranged on the other inner side of the chip mounting portion 11, the springs 112 extend out and are in contact connection with the sensing chips, and the positions of the sensing chips in the chip mounting portion 11 are adjusted by rotating the adjusting bolts 111.

Further, the socket body 10, the fixing portion 20 and the myoelectric hand mounting portion 30 are all made of nylon materials.

The invention provides the artificial limb receiving cavity of the myoelectric hand, which is integrally formed through 3D printing and is printed in a single layer, so that compared with a double-layer structure of the traditional receiving cavity, the artificial limb receiving cavity has the advantages of weight reduction and thickness reduction. Meanwhile, the problem of line fixation is solved, the structure is compact, the appearance is attractive, and the broken limb appearance of different patients can be accurately customized. The artificial limb receiving cavity is made of nylon materials, is light and firm, has a small difference from the body temperature, is relatively metal cavities in winter, is not too cold, can attach water molecules in air in summer, volatilizes water molecules to take away heat, enables the temperature of the receiving cavity body to be relatively low, has the characteristic of being warm in winter and cool in summer, and avoids the influence of supercooling or overheating on the use of patients during installation. The artificial limb receiving cavity is provided with the fixing part, the middle position of the fixing part is provided with the design which accords with the ergonomics of the arm, the stable installation and the seamless fixing of the artificial limb receiving cavity at the elbow position are ensured, and the artificial limb receiving cavity is prevented from falling off in the using process. The sweat blocking component is further arranged in the receiving cavity body, sweat can be prevented from flowing to the myoelectric hand position along the inside of the receiving cavity body by the sweat blocking component, corrosion and damage of sweat to the myoelectric hand are avoided, meanwhile, the sweat can be discharged in time, and bacterial breeding of the body in the receiving cavity is prevented. The cavity wall of the receiving cavity body is also provided with a large-area hollow, ventilation can be guaranteed at the hollow part, breeding of sweat is reduced, and cleaning of the cavity body and discharge of sweat are facilitated. In addition, the battery mounting groove, the chip mounting part and the circuit tube are arranged on the receiving cavity body, so that a mounting position is provided for mounting the myoelectric hand parts, the myoelectric hand parts and the receiving cavity body are integrated, and the occupied space of the parts is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of another view of the present invention.

FIG. 3 is a schematic view of the installation of the sweat blocking structure of the present invention.

Fig. 4 is an exploded view of the sweat blocking structure of the present invention.

Fig. 5 is an exploded view of another perspective of the sweat retaining structure of the present invention.

Fig. 6 is a schematic view of the internal structure of the chip mounting portion.

In the figure: the device comprises a 10 receiving cavity body, a 11 chip mounting part, a 111 adjusting bolt, a 112 spring, a 113 sensing chip fixing part, a 12 battery mounting groove, a 13 wire wheel tube, a 14 drainage hole, a 15 front cavity, a 16 rear cavity, a 17 hollowed-out part, a 20 fixing part, a 30 myoelectric hand mounting part, a 31, a myoelectric hand mounting hole, a 40 sweat blocking part, a 41 sweat blocking piece, a 42 sweat blocking ring, a 43 sealing buckle, a 44 sealing plate, a 45 buckle, a 46 first wire passing hole, a 47 second wire passing hole, a 48 drainage groove and a 49 converging surface.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical ideas claimed in the present invention.

Example 1

As shown in fig. 1-5, the prosthetic socket of the myoelectric hand in this embodiment is a 3D printing integrated single-layer socket with a hollow interior, the single-layer socket includes a socket body 10, one end of the socket body 10 is provided with a fixing portion 20, the other end is provided with a myoelectric hand mounting portion 30, the fixing portion 20 has an ergonomic radian, and is fixedly fastened at an elbow joint, and the myoelectric hand mounting portion 30 is provided with a plurality of myoelectric hand mounting holes 31; a chip mounting part 11 is arranged at one end close to the fixing part 20, the chip mounting part 11 protrudes outwards and internally is provided with a sensing chip for sensing the muscle action of the elbow, a battery mounting groove 12 is arranged on the cavity wall of the middle section of the receiving cavity body 10, and a convex circuit tube 13 is arranged on the cavity wall between the chip mounting part 11 and the battery mounting groove 12; the sweat blocking component 40 is further arranged, the sweat blocking component 40 comprises a sweat blocking piece 41 arranged on the inner cross section of the receiving cavity body 10, a sweat blocking ring 42 which is arranged on the sweat blocking piece 41 and faces the fixing portion 20 and protrudes outwards, and a sealing buckle 43 arranged on the sweat blocking ring 42, the sealing buckle 43 comprises a sealing plate 44 and a plurality of buckle pieces 45, the buckle pieces 45 are fixed on the sealing plate 44 and are buckled on the periphery of the sweat blocking ring 42, the sealing plate 44 is sealed with the top of the sweat blocking ring 42, a first wire passing hole 46 is formed in the sweat blocking piece 41, and a second wire passing hole 47 with the inner diameter smaller than that of the first wire passing hole 46 is formed in the sealing plate 44.

By providing the fixing portion 20 on the socket body 10, the middle position of the fixing portion 20 is recessed inward to conform to the ergonomics of the arm, and the whole socket body 10 is fixed at the elbow position. The accepting cavity body 10 is integrally formed by 3D printing, is single-layer but is of a double-layer structure compared with a traditional accepting cavity, reduces weight and thickness, and meanwhile, the convex circuit tube 13 is arranged, so that the problem of line walking is solved, the structure is compact, and the appearance is attractive.

In order to prevent the myoelectric hand from affecting the service life due to sweat corrosion, a sweat blocking structure 40 is arranged in the socket body 10, and the sweat blocking structure 40 can prevent sweat from flowing to the myoelectric hand position along the interior of the myoelectric hand body 10 to corrode the myoelectric hand. The sweat blocking component 40 comprises a sweat blocking piece 41 arranged on the inner cross section of the socket body 10, a sweat blocking ring 42 arranged on the sweat blocking piece 41 towards the fixing part 20 and protruding outwards, and a sealing buckle 43 arranged on the sweat blocking ring 42, wherein the sealing buckle 43 comprises a sealing plate 44 and a plurality of buckle pieces 45, the buckle pieces 45 are fixed on the sealing plate 44 and buckled on the periphery of the sweat blocking ring 42, and the sealing plate 44 is sealed with the top of the sweat blocking ring 42. This design has blocked sweat flow to the way of myoelectric hand, separates sweat in receiving cavity body 10 through the combined action of sweat piece 41 and sweat that keeps off trades 42, and sealed buckle 43 is sealed with the sweat that keeps off the top of ring 42 and guarantees that sweat can not enter into the myoelectric hand position through sweat that keeps off trades 42.

The battery mounting groove 12, the chip mounting part 11 and the circuit tube 13 are arranged on the receiving cavity body 10, so that the receiving cavity body has a compact structure, integrates the structure and reduces the occupied space of parts.

Example 2

As shown in fig. 3,4 and 5, this embodiment perfects the converging, draining and perspiration structure of the perspiration blocking structure, one surface of the perspiration blocking piece 41 provided with the perspiration blocking ring 42 is an inclined surface, a plurality of converging surfaces 49 are arranged on the inclined surface, a drainage groove 48 is arranged in the converging surface 49, a drainage hole 14 is arranged on the cavity wall of the receiving cavity body 10, and the position of the drainage hole 14 corresponds to the outlet position of the drainage groove 48. The sweat baffle 41 is arranged to be an inclined plane, so that sweat flows to the periphery of the sweat baffle 41 under the condition that the receiving cavity body 10 is vertical, is far away from the second through hole 47, meanwhile, the converging surface 49 and the drainage groove 48 further realize the converging effect on sweat, the sweat is converged to the outlet position of the drainage groove 48, the drainage hole 14 is arranged on the cavity wall of the receiving cavity body 10, the position of the drainage hole 14 corresponds to the outlet position of the drainage groove 48, the sweat is discharged out of the receiving cavity body 10, the aim of preventing bacterial breeding is fulfilled, meanwhile, the probability of the sweat to myoelectric hand corrosion invasion is greatly reduced, and the sweat collecting device is particularly suitable for high-temperature areas in the south.

Example 3

As shown in fig. 1 and 2, the socket body 10 includes a front cavity 15 and a rear cavity 16, and the inner space of the rear cavity 16 to the front cavity 15 is gradually narrowed. The purpose is to conform to the ergonomics of the arm so that the whole prosthetic socket is more firmly mounted on the limb.

Example 4

As shown in fig. 1 and 2, the socket body 10 is provided with a hollowed-out portion 17, the hollowed-out portion 17 is located on a cavity wall of the front cavity 15 opposite to the battery mounting groove 12, sweat can be generated when the prosthetic socket is used for a long time, or a great amount of sweat can flow into the cavity when the prosthetic socket is used in summer, so that the interior of the prosthetic socket is in a damp-heat state, the humidity and the temperature of the interior of the socket can change, various bacteria are greatly propagated to cause skin infection or various tinea, and the interior of the socket smells bad, and the skin of the residual limb is greatly damaged, so that new damage and lesions are caused to the skin of the residual limb, the hollowed-out design can ventilate the interior of the cavity, the interior of the cavity is always in a dry state, bacteria are prevented from breeding, and water or sweat flowing into the interior of the cavity can also flow out along the hollowed-out portion 7, so that the interior of the prosthetic socket is kept clean and sanitary.

Example 5

As shown in fig. 6, the chip mounting part 11 is provided therein with an induction chip fixing member 113, and the induction chip is fixed to the induction chip fixing member 113. One side of the chip mounting part 11 is also provided with a plurality of adjusting bolts 111, the adjusting bolts 111 penetrate through the side of the chip mounting part 11 and are in contact connection with the sensing chips, springs 112 with the same quantity as the adjusting bolts 111 are arranged on the other inner side of the chip mounting part 11, the springs 112 extend out and are in contact connection with the sensing chips, and the positions of the sensing chips in the chip mounting part 11 are adjusted by rotating the adjusting bolts 111. The design of this structure is mainly in order to guarantee that the inductive chip of installing in chip installation department 11 can have stable contact with the elbow muscle, avoids leading to the fact inductive chip to respond to the action of elbow muscle because of accepting cavity body 10 has the position variation in the use, and adjusting bolt 111 rotation adjustable inductive chip's position in chip installation department 11, fine setting guarantees the contact of inductive chip and elbow muscle.

Example 6

The receiving chamber body 10, the fixing portion 20 and the myoelectric hand mounting portion 30 are all made of nylon materials. Nylon material, light, firm, and because it is little different with the body temperature, possess warm in winter and cool in summer's characteristics, avoid supercooling or overheated influence patient's use experience when the installation.

Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing description and the accompanying drawings, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.

Claims

1. A prosthetic socket for an electromyographic hand, comprising: the artificial limb receiving cavity is a single-layer receiving cavity with a hollow inside and formed by 3D printing integrally, the single-layer receiving cavity comprises a receiving cavity body (10), one end of the receiving cavity body (10) is provided with a fixing part (20), the other end of the receiving cavity body is provided with an electromyographic hand installing part (30), the fixing part (20) is provided with an arc degree which accords with human engineering, the fixing part is fixedly buckled at an elbow joint, and a plurality of electromyographic hand installing holes (31) are formed in the electromyographic hand installing part (30);

A chip mounting part (11) is arranged at one end close to the fixing part (20), the chip mounting part (11) protrudes outwards and is internally provided with a sensing chip for sensing the muscle action of the elbow, a battery mounting groove (12) is arranged on the cavity wall of the middle section of the receiving cavity body (10), and a convex circuit tube (13) is arranged on the cavity wall between the chip mounting part (11) and the battery mounting groove (12);

The sweat blocking component (40) is further arranged, the sweat blocking component (40) comprises a sweat blocking piece (41) arranged on the inner cross section of the receiving cavity body (10), a sweat blocking ring (42) arranged on the sweat blocking piece (41) towards the fixing part (20) and protruding outwards, and a sealing buckle (43) arranged on the sweat blocking ring (42), the sealing buckle (43) comprises a sealing plate (44) and a plurality of buckle pieces (45), the buckle pieces (45) are fixed on the sealing plate (44) and are buckled on the periphery of the sweat blocking ring (42), the sealing plate (44) is sealed with the top of the sweat blocking ring (42), a first through hole (46) is arranged on the sweat blocking piece (41), a second through hole (47) with the inner diameter smaller than that of the first through hole (46) is arranged on the sealing plate (44), one surface of the sweat blocking piece (41) provided with the sweat blocking ring (42) is an inclined surface, a plurality of drainage surfaces (49) are arranged on the inclined surface, a body (48) is arranged in the confluence surface (49), the drainage surface (48) is sealed with the top of the sweat blocking ring (42), the drainage surface (48) is provided with the first through hole (46), the drainage surface (14) is provided with the corresponding drainage hole (14) on the receiving cavity (14) and the receiving cavity (14), the hollowed-out parts (17) are positioned on the cavity walls of the front cavity (15) opposite to the battery mounting groove (12).

2. The prosthetic socket of an myoelectric hand according to claim 1, wherein: the receiving cavity body (10) comprises a front cavity (15) and a rear cavity (16), and the inner space from the rear cavity (16) to the front cavity (15) is gradually narrowed.

3. The prosthetic socket of an myoelectric hand according to claim 1, wherein: an induction chip fixing piece (113) is arranged in the chip mounting part (11), and the induction chip is fixed on the induction chip fixing piece (113).

4. A prosthetic socket for an myoelectric hand according to claim 3, wherein: one of the side surfaces of the chip installation part (11) is also provided with a plurality of adjusting bolts (111), the adjusting bolts (111) penetrate through the side surface of the chip installation part (11) and are in contact connection with the sensing chip, springs (112) with the same quantity as the adjusting bolts (111) are arranged on the other inner side surface of the installation part (11), the springs (112) extend out and are in contact connection with the sensing chip, and the position of the sensing chip in the chip installation part (11) is adjusted by rotating the adjusting bolts (111).

5. The prosthetic socket of an myoelectric hand according to claim 1, wherein: the receiving cavity body (10), the fixing part (20) and the myoelectric hand mounting part (30) are all made of nylon materials.