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Method for controlling bone implantation type artificial limb using internal bioelectricity signal

A bioelectrical signal, bone implantation technology, applied in the field of biomedical engineering, can solve the problems of poor air permeability, affecting the full manifestation of the advantages of bone implantable prostheses, and it is difficult to ensure the stable positioning of electrodes, and achieves simple circuit processing. , high reliability, less interference signal effect

Inactive Publication Date: 2004-11-17
TSINGHUA UNIV
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Problems solved by technology

One solution is to still use surface myoelectricity control, which requires the electrodes to be attached to the skin surface. Although the interface between the bandage and the skin is better than that of the socket, it still has the problem of poor air permeability, and it is not easy to ensure that the electrode Stable positioning on the skin surface, thus affecting the full manifestation of the superiority of bone-implanted prostheses

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  • Method for controlling bone implantation type artificial limb using internal bioelectricity signal

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Embodiment Construction

[0011] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0012] like figure 1 As shown, the method for controlling bone-implanted prostheses with in vivo bioelectrical signals of the present invention comprises the following steps:

[0013] 1) Insert the upper end of the implant 3 with holes into the remaining bone 2 of the amputee's residual limb 1, and the lower end protrudes out of the body to connect with the prosthesis;

[0014] 2) The electrodes 5 for detecting bioelectrical signals are surgically implanted into nerve bundles or muscle bundles in the soft tissue 4;

[0015] 3) Lead the lead wire 6 of the electrode to the signal conditioner 7 outside the body through the through hole on the implant body. After the lead wire of the electrode is drawn out, the hole on the implant body is sealed. Sealed with biocompatible material;

[0016] 4) The in vivo bioelectrical signal collected by t...

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Abstract

The invention discloses a method for controlling bone implantation artificial limb by means of biological electrical signal in human body, which comprises the steps of, plugging the upper end of the implantation member with holes into the remnant bones of the amputee's stump, connecting the lower projecting member with the artificial limb, implanting the electrodes into the nerve-tract or muscle hank in the soft tissue, leading the contact conductor to the external signal conditioning device through the through-hole on the implantation member, carrying out magnification and filtration to the signal collected by the electrodes, mapping the signal into the control message for artificial limb motion, the control signal feeding to the motor to drive the artificial limb.

Description

technical field [0001] The invention relates to a method for controlling a bone-implanted prosthesis by using implanted electrodes to detect bioelectrical signals in a human body, and belongs to the field of biomedical engineering. Background technique [0002] The bone-implanted prosthesis draws on the implantation technology of dental implants and artificial joints. One end of the implant is bonded to the stump bone, the other end protrudes out of the body, and the end protruding out of the body is connected to the prosthesis. This kind of prosthesis does not have the traditional prosthetic socket used to transmit motion and power, and directly transmits force to the main bone through the implant body, which conforms to the laws of human biomechanics and fundamentally solves the traditional prosthetic socket-residual limb interface environment and ventilation. In addition, it can solve the problem that patients with too short residual limbs cannot be fitted with prostheses...

Claims

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Application Information

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IPC IPC(8): A61F2/72
Inventor 王人成姜明文张济川金德闻
Owner TSINGHUA UNIV
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