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Bionic prosthetic hand and device based on 3D printing

A 3D printing and prosthetic hand technology, applied in the field of prosthetics, can solve problems such as cumbersome manufacturing process, high cost, and complex structure

Inactive Publication Date: 2017-07-25
北京展翼计划科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In summary, the technical disadvantages of existing bionic prosthetic hands are: complex structure, cumbersome manufacturing process, limited functions, high cost, and unable to meet the actual needs of disabled people

Method used

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  • Bionic prosthetic hand and device based on 3D printing
  • Bionic prosthetic hand and device based on 3D printing
  • Bionic prosthetic hand and device based on 3D printing

Examples

Experimental program
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Embodiment 1

[0038] In order to facilitate the understanding of this embodiment, the 3D printing-based bionic prosthetic hand disclosed in the embodiment of the present invention is first introduced in detail.

[0039] figure 2 Schematic diagram of the structure of the bionic prosthetic hand based on 3D printing provided by the embodiment of the present invention.

[0040] refer to figure 2, the bionic prosthetic hand based on 3D printing includes: myoelectric signal sensor 10, single-chip microcomputer 20, servo motor 30, transmission structure 40 and actuator 50;

[0041] Myoelectric signal sensor 10 is connected with single-chip microcomputer 20, is used for collecting original myoelectric signal, and sends pulse signal to single-chip microcomputer 20;

[0042] The single-chip microcomputer 20 is connected with the servo motor 30, and is used to correspondingly send a drive signal to the servo motor 30 according to the pulse signal;

[0043] The servo motor 30 is connected with the...

Embodiment 2

[0074] Image 6 Another schematic diagram of the structure of the bionic prosthetic hand based on 3D printing provided by the embodiment of the present invention.

[0075] refer to Image 6 , the structural composition relationship of the bionic prosthetic hand based on 3D printing is as follows: the muscle electrical signal sensor 10 transmits the collected muscle electrical signal to the single-chip microcomputer 20, and the single-chip microcomputer 20 converts it into the required motor motion signal according to the program, and further, the servo The motor 30 drives the motion implementing structure 50 through the transmission structure 40 to realize the motion of the prosthesis. Here, the transmission structure 40 includes a traction rope. The power supply can directly supply power to each electronic component such as the single-chip microcomputer 20, and also can only supply power to the single-chip microcomputer 20, and then the single-chip microcomputer 20 supplies...

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Abstract

The invention provides a bionic prosthetic hand and device based on 3D printing. The hand comprises an electromyography sensor, a single chip microcomputer, a servo motor, a transmission structure and an actuator. The electromyography sensor is connected with the single chip microcomputer, which is used for collecting original electromyography signals and sending impulse signals to the single chip microcomputer. The single chip microcomputer is connected with the servo motor, which is used for sending driving signals to the servo motor correspondingly according to the original electromyography signals or the impulse signals. The servo motor is connected with the transmission structure, which is used for affecting the transmission mechanism connected with the actuator according to the driving signal, thereby achieving the control over movement attitudes of a flexible or elastic hand body in the actuator through the transmission mechanism. According to the bionic prosthetic hand and device based on the 3D printing, bending movements and attitude hold of fingers can be achieved through simple structures, and a variety of hand gesture movements can be completed. The bionic prosthetic hand and device based on the 3D printing have the advantages of being easy and convenient to manufacture, low in cost and high in degree of freedom.

Description

technical field [0001] The invention relates to the technical field of prosthetics, in particular to bionic prosthetic hands and devices based on 3D printing. Background technique [0002] Wearing a hand prosthesis is a common solution for physically disabled people with missing hands. According to the 2006 National Census of the Disabled, there are approximately 24 million physically disabled people in China, and there is a huge market demand for prosthetics. However, because prosthetic products need to be customized one-to-one according to the situation of different people, the cost of prosthetic production is high under the traditional mold opening process. For electronic prosthetics that can realize several gesture controls, the customization cost often reaches hundreds of thousands of RMB. , which is unbearable for ordinary families. 3D printing technology is a manufacturing technology that can quickly manufacture complex shape parts without opening a mold. Using mat...

Claims

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Application Information

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IPC IPC(8): A61F2/54A61F2/58A61F2/72B33Y80/00
CPCA61F2/54A61F2/583A61F2/586A61F2/72B33Y80/00
Inventor 苏江舟张延廖励志王宇翔
Owner 北京展翼计划科技发展有限公司
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