Medical & Laboratory
Medical Device Cable Assembly
- 30 V to 300 V; 105 °C PVC and 150–200 °C fluoropolymer options
- 1 to 40 conductors; fine-gauge low-voltage runs are typical
Medical & Laboratory Wire Harness
Device wiring assemblies selected on cleaning chemistry, bend radius and gauge, with lot-level process records supplied alongside the part.
1harness lines
7application groups
Medical assemblies are specified by the environment and the paperwork. A cable wiped down twice a shift has different requirements from one inside a diagnostic cabinet, and both differ from a lead that has to bend through a tight radius inside a handheld instrument.
Rather than a single “medical grade” label, the selection here is made on temperature, cleaning chemistry, bend radius and gauge. The wire lines used are the UL 758 AWM styles this catalogue already documents, and the finished assembly is supplied with the process record for that lot.
Cleaning chemistry is the first cut. Alcohol and quaternary-ammonium wipes are hard on some PVC compounds and mild on fluoropolymers, so a cable that is wiped twice a shift is usually built on UL1330 or UL1332, which carry 200 °C and 150 °C ratings respectively and tolerate repeated chemical exposure, or on a halogen-free XLPE or MPPE line such as UL10369 or UL11027 where a low-smoke material is a requirement of the equipment.
Geometry is the second cut. Inside a handheld instrument the limiting factor is rarely the temperature and almost always the bend radius, which is why the 150 V ultra-thin lines UL10272 and UL11079, and the 30 AWG to 32 AWG thin-wall range in UL1571, carry a large share of this work. Fine stranding and a thin wall buy the radius; they also mean the strip length and the crimp have to be right the first time, because there is no conductor left to re-terminate.
On paperwork, the position is straightforward. The assemblies are built from UL 758 AWM wire and the process is recorded per lot — strip length, crimp height, pull-test result, continuity against the from-to list, and the first-article approval. Component-level approvals for the finished device, whether IEC 60601 or a national equivalent, rest with the equipment maker. What is supplied here is the wire certificate, the lot record and the material traceability that the device file needs.
Medical & Laboratory harness lines
Each line states the wire it is built on, the conductor range, the termination style and the inspection method.
Other harness application groups
Medical & Laboratory harness questions
What buyers ask before they send a drawing for this group.
What documentation comes with a medical cable assembly?
The wire certificate reference, the lot record for the build — strip length, crimp height, pull-test result and continuity against the from-to list — and the first-article approval for the drawing revision that was built. That is the traceability a device file needs from a cable supplier. Approvals that apply to the finished instrument rest with the equipment maker rather than with the harness.
Which wire resists repeated alcohol and quaternary-ammonium wiping?
Fluoropolymer insulation is the safe answer: UL1330 at 200 °C and UL1332 at 150 °C are both FEP and are unaffected by the common wipe chemistries. Some PVC and SRPVC compounds are perfectly serviceable under the same wipes, but the compound matters, so if the cleaning agent is fixed, send it and the wire will be selected against it rather than against a generic claim.
Can small batches be built for clinical-trial equipment?
Yes. Trial and pre-production quantities are normal here, and they are built with hand tooling and full first-article documentation. What is worth planning is the transition: the wire line and the terminal series chosen at trial stage are the ones that will be validated, so it is better to fix them early than to change them when the equipment goes into volume.
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