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连接器可将植入手术风险减至最小 - China Medical Device Manufacturer
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Wed, January 17th, 2018

2008年9月CMDM电子快讯 » 行业新闻
连接器可将植入手术风险减至最小

对于诸如心脏起搏器和神经刺激器等植入器械来说,可靠性是一个极为重要的因素,因为一旦器械失灵或出现故障,就会对生命造成威胁。不止如此,太小或太笨重的产品可能在手术过程中掉落或失准,同样会造成危险。伊倍达电子公司(Hypertronics; 上海市;www.hypertronics.com.cn)针对这些考量,开发出一种无生理排斥的连接器,让电极导线连接植入器械的过程变的更加容易。ImplanTac为植入应用提供了必需的可靠性水平,同时将植入过程中对器械和病人造成损害的可能性减至最低。

当植入起搏器时,外科医生在手术过程中使用固定螺钉或具有插针插孔的连接器将植入器械与电极导线连接。由于导线是依据感知反馈来监控并施放电脉冲,电极导线和器械之间的连接必须稳固、可靠。然而,将器械与其电极相连接是一个极容易产生风险的过程。

使用固定螺钉的连接器必须用到微小、特殊的扭矩螺丝起子和螺丝钉,这对于戴着手套的外科医生来说,不是件简单的任务,有时甚至还会在手术过程中丢失。ImplanTac连接器使用插针插孔,不同于固定螺钉产品,不需要使用任何配合工具。插孔连接器结构更为简单,同时插拔力和接触电阻也较低,使得操作变得更为简单。

由于植入器械的元件在极短的距离内相连接,插拔力和电阻也是很重要的考虑因素。 伊倍达医疗部经理Tom Kannally表示,由于植入物连接器的元件很小,因此设计不当的插座连接器在连接时会被损坏 。 他说道: “外科医生在手术过程中无法每次都察觉到连接器是否被损坏,而损坏一旦发生,就不能进行修复,这样就必须植入一个新的器械。”修复植入器械不但价格高昂又耗费时间,对于制造商和外科医生而言都不实际,Kannally补充道。

以公司现有的高可靠性的Hypertac连接技术为基础,ImplanTac连接器的开发旨在满足客户以及行业内对植入器械日益增多的需求。尽管应用领域日益增大,器械的大小却在不断地缩小。据Kannally介绍,在开发ImplanTac 连接器的过程中,最大的挑战就是如何 设计出微小器械,使其在人体中极小的操作面积内,也能顺利进行操作。可植入器械通常必须具有多个连接器,这些连接器是不能容忍连接失误的。他补充道,伊倍达可以定制连接器的大小特征和插拔力及电阻,以满足具体的应用要求。

连接器的材料也是可以进行定制的。取决于不同的器械,电极和插孔连接器可以使用不同的无生理排斥的材料制造。但Kannally也提到,材料之间的相互影响对于电连接和器械最终的功能性与可靠性有决定性的作用。

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