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The Research on A Transcutaneous Energy Transmission System for A Novel Rechargeable Cardiac Pacemaker

新型可充电心脏起搏器经皮能量传输系统的研究

基本信息

批准号：
06805037
负责人：
NISHIMURA Toshihiro
金额：
$ 1.09万
依托单位：
THE OITA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06805037/
关键词：
Rechargeable Cardiac Pacemaker Analysis of Electromagnetic Field for Distribution Resonant ZVS ZCS DC to DC Converter Titanium Scield Case 人工臓器 2次電池経皮的エネルギー伝送充電心臓ペースメーカー渦電流電磁障害

项目摘要

The technique would need a power supply wihch uses a transcutaneous transformer to change the battery of rechargeable cardiac pacemaker. A flat transformer for a resonant converter which transfers several W of power across a large variable human skin gap is presented and built. The secondary of the transformer would be implanted under the skin 10 mm depth and primary of the transformer would be placed on top of the secondary, extemal to the body. This spacing cannot be assumed constant ; the alignment of the cores and distance between them would certainly vary during the operation of the power supply.The converter can power a novel cardiac pacemaker battery through intact skin by utilizing a novel transformer with an air gap which is 10 mm. An analysis for a presumption on magnetic flux distribution in the transformer is presented, and coupling coefficient and conversion efficiency are measured with an experimental set up. Power levels of up to 1 W have been safety transmitted across the tissue in our laboratory animal. Furthermore, no apparent negative effects have been observed in living tissue after long-term exposure to electromagnetic fields generated by a transcutaneous power supply.

这项技术需要一个电源，它使用一个经皮变压器来改变可充电心脏起搏器的电池。提出并制造了一种用于谐振变换器的平板变压器，该变压器可在较大的可变人体皮肤间隙内传输数W的功率。变压器的次级将被植入皮肤下10毫米深，变压器的初级将被放置在次级的顶部，在身体外部。这个间距不能假定为常数；在电源运行期间，核心的对齐和它们之间的距离肯定会有所不同。该转换器可以利用具有10毫米气隙的新型变压器，通过完整的皮肤为新型心脏起搏器电池供电。对变压器内磁通分布的假设进行了分析，并在实验装置上测量了耦合系数和转换效率。在我们的实验动物中，高达1w的功率水平已经安全地通过组织传递。此外，长期暴露于经皮电源产生的电磁场后，在活组织中没有观察到明显的负面影响。