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组装系统制造商发明导管卷边新方法 - China Medical Device Manufacturer
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Fri, January 19th, 2018

2006年7/8月刊 » 技术新知
组装系统制造商发明导管卷边新方法

卷边工作站降低了不合格卷边引发导管故障的机率。

一家集成组装和检测系统的制造商受托解决导管卷边的问题,并将此挑战成功地化为商机。自诩为问题解决者的Promess公司(美国密歇根州, Brighton; www.promessinc.com)发明了一种新的导管卷边法,可使导管性能稳定,确保在关键医疗应用中不会发生故障。

因为导管均用于生命支持系统中,任何卷边故障都有可能导致极为严重的后果。Promess公司总裁Larry Stockline说道:如果卷边不够理想,牵拉时导管就会散开,或者引起管腔完全闭合,最终导致导管失去作用。

卷边的加工过程通常由一台液压机来执行,但是制造商无法精确测量和控制液压机的压力。经过几次工艺改良的尝试后,一家制造商最终还是求助于Promess公司的电机组装压力(EMAP)技术。这种伺服控制压力机适合需要精确控制的组装操作。在此类加工过程中,对压力和位置的精确控制是影响卷边效果的关键。

在导管卷边的操作中,保持质量稳定的关键在于同时监控所用压力和卷边工具的准确位置,Stockline说,一旦获得了已知正确操作中压力和位置的量化参数,我们就可以将其作为基准来测量后续的操作过程。

系统对卷边质量进行严密监控。通过与软件和传感器的整合,卷边工作站具有差动监控的功能,这使机器能够检测出不符合用户生产标准的部件。

为了确保卷边深度的正确性,EMAP系统还配有用于监控工具的传感器。此外,该系统的压力偏差在0.5%以内。

由于配备了上述的监控和精密控制功能,EMAP卷边工作站已成功实现了生产优质卷边的最初目标,这也证明了该公司确实名副其实。


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