The Luer Lock Cap (Small) (JT-041) is a medical plastic component used in IV infusion sets and fluid-transfer lines. It provides a secure, single-use connection in the fluid path and is molded from polycarbonate. Baixin Bio supplies it in standard form and with OEM/ODM customization.
Definition
A luer lock cap (small) is one of the small standardized parts that make a medical fluid path work. Its job is to connect, seal or control flow between two segments of a line, and it is manufactured from device-qualified plastics for reliable single-use performance.
The component is small, but it carries real responsibility: a poor seal or an out-of-tolerance dimension can compromise an entire single-use assembly, which is why medical molders control material, tooling and process tightly.
To put it in context: a disposable fluid-handling device is rarely one molding. It is a chain of small components — connectors, valves, chambers, clamps, caps and tubing — assembled into a single path. Standard interfaces are what let those components come from a catalog and still fit, which is the whole reason this category of part exists.
About This Component
The Luer Lock Cap (Small) is supplied as a single-use molded part for IV infusion sets and fluid-transfer lines. Its interface follows standard conventions so it mates predictably with compatible components, and it is produced in polycarbonate by default, with other medical-grade resins available on request.
Like all Baixin Bio components, it can be customized for material, color, dimensions, packaging and assembly. For a precise specification — exact dimensions, tolerances, sterilization validation, packaging counts and minimum order quantity — request a drawing and samples through the inquiry form.
Key Advantages
For device assemblers specifying luer lock cap (small), the benefits that matter most are reliability and repeatability:
- Medical-grade resin selected for fluid compatibility
- Dimensional consistency across production lots
- Smooth fluid-contact surfaces for reliable connection
- Available in multiple materials and colors
- Supports OEM and ODM customization of dimensions and packaging
- High-volume manufacturing with stable quality
Taken together, these are the reasons device makers standardize on molded medical components rather than improvising connections: the part is predictable, documented and available at volume, which keeps the finished device safe and the production line moving.
Common Applications
Typical applications for luer lock cap (small) span the disposable device landscape:
- Irrigation sets
- Disposable diagnostic devices
- Syringe and pump connections
- IV infusion sets
- Blood and fluid transfer lines
What links these applications is risk. Each one moves fluid into or out of a patient or a sample, so a leak, a wrong connection or a contaminated surface has consequences. Standardized single-use components reduce that risk by making every junction predictable and by being discarded rather than reprocessed, which is the safer default for most modern disposable devices.
How to Specify and Choose
When you select a component, work through these variables before requesting a quote:
- The connection standard the mating part uses (luer slip, luer lock or a specific ISO 80369 series)
- The working pressure the junction must hold without leaking or separating
- The fluid and its chemical compatibility with the candidate resin
- The inner and outer diameters of the tubing the part bonds to
- The sterilization method the finished device will undergo
Once these are defined, sample qualification against your own process is the last step before volume. If no catalog part matches, these same inputs drive a custom mold.
Industry Standards
From a compliance standpoint, the component sits at the intersection of connector standards and material standards. The ISO 80369 family governs small-bore connection geometry to prevent misconnection, while biocompatibility documentation and a validated sterilization route — EO, gamma or autoclave — establish that the molded material is acceptable for its intended contact.
For polycarbonate components, the practical sterilization options are gamma and ethylene oxide (EO); the choice is confirmed against the finished device and its validated process.
Much of the modern standards work exists to prevent misconnection. Historically a single luer taper served many applications, which made cross-connections physically possible; the ISO 80369 series assign distinct geometries to different uses so incompatible lines simply will not mate. When you specify a connector, identifying the correct series for the application is therefore a safety decision, not just a fit decision.
This page is informational and does not replace device-specific regulatory or validation guidance. Confirm exact standards, biocompatibility and sterilization requirements for your product with your quality team and your supplier.
Frequently Asked Questions
Is luer lock cap (small) available for OEM or ODM projects?
Yes. Baixin Bio manufactures to drawings and samples, customizing material, color, dimensions, packaging and assembly. Send your specification for a quote.
What materials are used?
Depending on the part, medical-grade PC, PP, PVC, ABS, PE or POM is used, selected for the connection method, fluid path and sterilization requirement.
How is it sterilized?
Components are compatible with validated single-use sterilization such as ethylene oxide, gamma irradiation or steam autoclave, depending on the resin. Confirm the method for your device.
Is it compatible with ISO 80369?
Luer interfaces follow small-bore connector conventions. Confirm exact ISO 80369 series compatibility for your application with Baixin Bio before specifying.
What order volumes are supported?
Baixin Bio supplies disposable device assemblers in production volumes, with consistent lot-to-lot quality and export-friendly communication.
Can I request samples?
Yes. Samples and drawings are welcome and recommended before committing to volume. Use the inquiry form to request them.
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Need Medical Connectors or Components?
Baixin Bio manufactures luer connectors, valves, drip chambers, clamps, caps and tubing, with OEM and ODM customization. Send your drawings or samples for a quote.
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