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Auxiliary implantable flexible microelectrode of non-absorbable suture line and production method thereof

A micro-electrode and implantable technology, applied in the direction of electrodes, internal electrodes, etc., can solve the problems of methods or systems without the accuracy of micro-electrode implantation parts, and less research on accuracy, so as to ensure accuracy and operability strong effect

Inactive Publication Date: 2012-06-20
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, the current research on microelectrode implantation methods focuses on how to improve the accuracy of the implanted site during implantation, and there are few studies on the long-term site accuracy after microelectrode implantation. Method or system for long-term assurance of microelectrode implant site accuracy

Method used

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  • Auxiliary implantable flexible microelectrode of non-absorbable suture line and production method thereof
  • Auxiliary implantable flexible microelectrode of non-absorbable suture line and production method thereof
  • Auxiliary implantable flexible microelectrode of non-absorbable suture line and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Such as figure 1 As shown, the non-absorbable suture-assisted implantable flexible microelectrode prepared in Example 1 includes: medical suture needle 1, non-absorbable suture wire 2, flexible microelectrode 4, polydimethylsiloxane 5 with fixed binding ends .

[0020] In this embodiment, the medical suture needle 1 is a variety of commercial surgical suture needles.

[0021] In this embodiment, the non-absorbable suture wire 2 is a commercially available non-absorbable suture needle with thread.

[0022] In this embodiment, the flexible microelectrode 4 can be a noble metal wire microelectrode (such as platinum wire, iridium wire, gold wire, etc.), a polymer microelectrode (such as a Parylene film microelectrode, a conductive polymer film microelectrode, etc. ) in one.

[0023] In this embodiment, the flexible microelectrode 4 is provided with electrode points 3, and there may be one or more flexible microelectrode electrode points 3.

[0024] In the p...

Embodiment 2

[0035] This embodiment provides a preparation method of the nonabsorbable suture-assisted implantable flexible microelectrode described in Embodiment 1. The specific preparation process is as follows: firstly, the flexible microelectrode 4 (here, a platinum wire electrode is used as an example) is combined with a nonabsorbable suture The suture wire 2 is helically wound together, and the wire should not be too loose, and it is advisable to see the contact between the wire and the platinum wire electrode with the naked eye. Then apply an appropriate amount of polydimethylsiloxane to the joint end of the wire and the platinum wire electrode, and finally heat-treat in an oven at 70°C for 6 hours.

[0036] In this embodiment, the polydimethylsiloxane 5 at the bonding end of the non-absorbable suture wire 2 and the flexible microelectrode 4 has a mass ratio of silicone rubber to curing agent of 10:1.

[0037] In this embodiment, when winding the microelectrode, the medical su...

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Abstract

The invention discloses an auxiliary implantable flexible microelectrode of a non-absorbable suture line and a production method thereof, wherein the electrode comprises a flexible microelectrode, a non-absorbable suture line and a medical suture needle, the flexible microelectrode and the non-absorbable suture line are spirally wounded together, the combination tail end of the non-absorbable suture line and the flexible microelectrode is fixed via polydimethysiloxane, and the medical suture needle is connected with the two ends of the non-absorbable suture line. The auxiliary implantable flexible microelectrode utilizes the characteristics that the suture line penetrates through the tissues easily and has the relatively fixed positions, so the flexible microelectrode and the suture line are produced together, and the flexible microelectrode is implanted when the suture line penetrates through the tissues. The auxiliary implantable flexible microelectrode has strong operability, the prepared suture line with the flexible microelectrode is only needed to be implanted and fixed in the targeted tissues through a surgical suture technology for use, so the accuracy of the implantation position of the microelectrode can be ensured for a long term.

Description

technical field [0001] The invention relates to a microelectrode in the technical field of medical devices, in particular to a non-absorbable suture-assisted implantable flexible microelectrode for paralysis rehabilitation and a preparation method thereof. Background technique [0002] In recent years, with the continuous advancement of micro-electromechanical systems (MEMS: Micro-Electro-Mechanical Systems) technology, the application range of micro-systems such as micro-electronic devices and micro-sensors has continued to expand, and has been widely used in many fields, especially in the medical field. . [0003] Microelectrodes for paralysis rehabilitation are an important application. Skeletal muscles are innervated by nerves, but if the nerves are damaged, the skeletal muscles will be paralyzed or paralyzed, unable to perform motor functions. If the microelectrode is used to load the functional electrical stimulation signal to the target muscle or target site, then t...

Claims

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Application Information

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IPC IPC(8): A61N1/05
Inventor 刘景全康晓洋田鸿昌杨春生
Owner SHANGHAI JIAO TONG UNIV
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