The Locking-Cap Flexible Luer 4-Way Connector (JT-036) 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
At its core, a locking-cap flexible luer 4-way connector is a molded plastic component that creates or controls a connection in a medical fluid line. It is engineered so that tubing, syringes, devices and accessories join with a predictable, leak-resistant fit, and it is produced as a single-use part from medical-grade thermoplastics.
What separates a medical-grade part from a generic fitting is repeatability. Sealing surfaces are smooth and consistent, dimensions hold across the lot, and the resin is selected for fluid compatibility and sterilization.
It helps to picture where the part sits. A finished single-use device — an IV set, a transfer line, a dialysis circuit — is an assembly of molded plastic pieces joined into one fluid path. Each piece has a narrow job, and the value of standardization is that pieces from a catalog snap together predictably, so an assembler can design around known interfaces instead of bespoke fittings.
About This Component
The Locking-Cap Flexible Luer 4-Way Connector 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
The practical advantages of locking-cap flexible luer 4-way connector cluster around safety, consistency and supply:
- Compatibility with common sterilization methods
- Standardized interface that interoperates with compliant luer components
- Leak-resistant seal that holds under normal line pressure
- Single-use design that supports sterile, disposable workflows
- Medical-grade resin selected for fluid compatibility
- Dimensional consistency across production lots
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
You will find locking-cap flexible luer 4-way connector across a range of single-use fluid-handling assemblies, including:
- Irrigation sets
- Disposable diagnostic devices
- Syringe and pump connections
- IV infusion sets
- Blood and fluid transfer lines
Across all of these uses, the underlying requirement is the same: a connection that is secure, leak-resistant and safe to make once and discard. That is why standardized, single-use molded components dominate the category — they remove variability from the most failure-prone part of a fluid path, the junction, and they let a device be assembled quickly and qualified as a unit.
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
The relevant standards work is centered on ISO 80369, the small-bore connector series designed to prevent dangerous misconnections across IV, enteral, respiratory and other applications. Alongside connection standards, material biocompatibility and a validated sterilization method (EO, gamma or autoclave) define whether a component is fit for medical use.
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.
The reason the standards landscape moved toward ISO 80369 is patient safety: when every line used the same luer taper, it was physically possible to connect, say, an enteral line to an intravenous one. The newer series give different applications deliberately incompatible geometries so a dangerous misconnection cannot be made by accident. For a component maker, that means confirming which series an application requires before specifying a part.
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
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.
Is locking-cap flexible luer 4-way connector 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.
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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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