Luer Fittings And Connectors
Luer Connectors And Tips
A family of molded luer connectors, clamps and tips for fluid lines in infusion, sampling and instrument plumbing.
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Design Guide
Designing Small Medical Parts For Molding
The design decisions on tiny components that are cheap to change in CAD and expensive to change in steel.
Decide Where The Parting Line Goes
On a luer taper, a sealing land or an ophthalmic delivery path, a parting line in the wrong place is a functional defect rather than a cosmetic one. Decide its position while the part is still in CAD, because in steel it is a new cavity.
Keep Wall Sections Even
Uneven walls cool unevenly and warp, and on clear parts they also change how light passes through. Even sections matter more on small parts than on large ones, because there is no surrounding structure to hold the shape.
Plan Ejection Before Function
A part that cannot be ejected without deforming has no production future, however well it performs in testing. Ejector positions need to be on non functional surfaces, which constrains where features can sit.
Say What The Feature Is For
The most useful thing on a drawing is a note saying which dimensions are functional. It lets the tool room put the accuracy where it matters and the tolerance where it does not, and it usually makes the tool cheaper rather than more expensive.
Questions Buyers Ask
Questions On This Topic
How early should we involve a molder?
Before design freeze. Most of the changes we suggest cost nothing in CAD and cost a new cavity once the steel is cut.
Will you tell us if a design will not mold well?
Yes, with the specific reason and a suggested change. A quotation that hides a known problem only moves the cost later.
Internal Links
Components Mentioned Here
Luer Fittings And Connectors
Micro Luer Fittings
Very small molded fittings and adapters for compact fluidic assemblies where a standard luer body will not physically fit.
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Blood Separation Components
Blood Separator
Molded blood separator bodies, discs and internals, carried over from the original product catalogue.
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Related Pages
Case Study
Tooling A Multi Part Blood Separator
Thin clear sections warp as they cool, and a separator has to stay both dimensionally stable and optically clear across every cavity of every part in the assembly.
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Industry
Medical Device OEM
Single use delivery and access devices where the tool, not the moulding machine, decides whether the device works.
See Applications →Solution
Prototype To Volume
Getting from a first sampled part to a repeatable production lot without changing supplier halfway.
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Solution
Medical Mold Development
From your 3D part data to a sampled, released production tool, without the part leaving our site.
See The Stages →Put This Into Practice On Your Own Part
Send the drawing and we will apply exactly what this guide describes to your geometry, and tell you where it will not work.