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A multi-channel miniature electrical stimulator for sensory feedback in a prosthetic hand

An electrical stimulator, multi-channel technology, applied in the direction of prosthesis, medical science, artificial arm, etc., can solve the problems of lack of multiple feedback channels, poor reliability of sensory feedback, lack of general interfaces, etc., and achieve a high degree of interface generalization, Avoid charge accumulation, the effect of strong versatility

Inactive Publication Date: 2011-12-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of poor reliability of sensory feedback, low comfort, lack of multiple feedback channels, poor accuracy, large size and lack of universal interface existing in the multi-freedom prosthetic hand that adopts electrical stimulation as sensory feedback, and provides A multi-channel miniature electrical stimulator for sensory feedback in a prosthetic hand

Method used

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  • A multi-channel miniature electrical stimulator for sensory feedback in a prosthetic hand
  • A multi-channel miniature electrical stimulator for sensory feedback in a prosthetic hand
  • A multi-channel miniature electrical stimulator for sensory feedback in a prosthetic hand

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0010] Specific implementation mode one: according to the instructions attached figure 2 and 3 Describe this embodiment in detail. This embodiment includes a power module circuit A, a waveform generator circuit B, and an amplifying drive circuit C. The +20V drive power output end of the power module circuit A is connected to the positive-phase drive power input of the amplifying drive circuit C. terminal, the -20V drive power output terminal of the power module circuit A is connected to the negative-phase drive power input terminal of the amplifying drive circuit C, the waveform output terminal of the waveform generator circuit B is connected to the waveform input terminal of the amplifying drive circuit C,

[0011] The amplifying driving circuit C includes three amplifying driving channels: the first amplifying driving channel C-1, the second amplifying driving channel C-2 and the third amplifying driving channel C-3, and each amplifying driving channel includes an amplifyin...

specific Embodiment approach 2

[0013] Specific implementation mode two: according to the instructions attached figure 1 Describe this embodiment in detail. This embodiment is a further description of Embodiment 1. The power module circuit A described in this embodiment includes: an inductor L2, a first rectifier diode D1, a second rectifier diode D2, a second rectifier diode Three rectifier diodes D3, fourth rectifier diode D4, first energy storage capacitor C2, second energy storage capacitor C5, first configuration resistor R1, second configuration resistor R2, positive feedback capacitor C4 and the main control of the power module The chip 4-1, the power supply input terminal of the main control chip 4-1 of the power module and the first terminal of the inductance L2 are connected to the 3.3V power supply, the second terminal of the inductance L2, the first terminal of the first energy storage capacitor C2 and the first terminal of the first energy storage capacitor C2 The first end of the second energy ...

specific Embodiment approach 3

[0014] Specific implementation mode three: according to the instructions attached figure 1 Describe this embodiment in detail. The difference between this embodiment and the first embodiment is that the power module circuit A also includes a first decoupling capacitor C1, a first output capacitor C6, and a second output capacitor C3. The first decoupling The two ends of the capacitor C1 are respectively connected to the 3.3V power supply and the power ground; The output terminal is connected to the power ground.

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Abstract

A multi -channel miniature stimulator used for fake -handed feedback, which belongs to the field of biomechatronics technology. It solves the sensory feedback reliability of multi -free vacation hands using electrical stimuli as a sensory feedback method, poor feedback, reliability, and reliability, and reliability.The problem of low comfort, no multiple feedback channels, poor accuracy, large size, and lack of general interfaces.The invention includes the power module circuit, the waveform generator circuit, and the amplifier driving circuit.The stimulating waveform generated by the device circuit is transformed into a bilateral stimulation waveform, and it produces a bipolar stimulus signal used to stimulate the human body after amplification.The invention lays the foundation for the development of the prosthetic limb.

Description

technical field [0001] The invention relates to a sensory feedback electric stimulation device for a multi-free artificial hand electric control system, which belongs to the technical field of Biomechatronics. Background technique [0002] As a high-tech product in the field of robotics, prosthetic hands are applied to people with hand disabilities due to congenital diseases or acquired accidents, which means that prosthetic hands will serve as a substitute for human hands and accompany disabled people in their daily lives. An ideal prosthetic hand should have bionic characteristics similar to the human hand, which puts forward requirements for the design of the prosthetic hand from three main aspects: first, it should have the appearance, weight, flexibility and grasping ability similar to the human hand; second, it should have The simple and reliable control method enables the disabled to freely control the movement of the prosthetic hand; thirdly, it has the ability to fe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/72A61F2/54
Inventor 姜力李楠刘宏
Owner HARBIN INST OF TECH
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