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Medical push-pull connector features internal latching system

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By eeNews Europe

Thomas
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In seeking to meet these requirements a complete review of the whole Redel system led to the idea of inverting the latching system, so that the latches lock onto the central insert mounting rather than the bore of the receptacle.

The first immediate benefit of this concept is that the nose of the plug no longer has latching windows and is much stronger when using the same material and thickness. Although the existing connector can often withstand being inadvertently trodden upon, it is still vulnerable to heavier impacts potentially leading to the loss of use of important equipment at critical moments. Any improvements in strength reduce the risks of unintended damage to the connector and system as a whole.

The use of a rectangular insert provides a large flat area on which to locate the inner latching groove, which would have otherwise been much tighter on a circular inner groove, thus helping to make the latching mechanism more robust. As a result of having a rectangular insert the number of contacts feasible increases from a maximum of 22 contacts of 0.5mm nominal size in comparison with 14 contacts of 0.5mm for the existing Redel connector which is of the same size.

Contact configurations that have been developed for this connector are 4, 6, 8, 10, 13, 16, 18 and 22-way, in solder and crimp options. PPSU material is the standard material of construction for the XP Series as it gives improved sterilization resistance in comparison to PSU, which is the standard material for the Redel P series.

The development of a completely new series has also provided an opportunity to build in improvements sought by customers. The XP Series has 3 keys as standard, which assists mating and particularly blind-mating of the connector. In addition there are four keyway options, two for standard gender and two for reverse gender. However, the connector has been designed so that the inserts are completely interchangeable between plug and socket housings, which means that customers have the flexibility to reverse the gender to suit their purposes.

The outer shell of the XP series is ergonomically shaped to assist with connector mating and un-mating. Additionally the thumb grip location provides a highly visible guide for polarization. The collet now clips onto the back of the insert assembly which further assists assembly by holding it together whilst locating into the connector.

Visit Lemo at www.lemo.co.uk


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