Luer interfaces on the Locking-Cap Flexible Luer 4-Way Connector (JT-036) follow small-bore connector conventions; confirm exact ISO 80369 series compatibility for your application with Baixin Bio. It is molded from polycarbonate for IV infusion sets and fluid-transfer lines.
Definition
The term locking-cap flexible luer 4-way connector refers to a precision component within IV infusion sets and fluid-transfer lines. It defines how a fluid line connects, branches, seals or regulates, and it is molded to tight tolerances so the interface performs the same way across an entire production lot.
Because the part sits directly in the fluid path, three things matter most: a dependable seal, dimensional consistency from part to part, and a material that is compatible with the fluid and the chosen sterilization method.
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 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 reasons locking-cap flexible luer 4-way connector is specified come down to a few concrete advantages:
- 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
- Compatibility with common sterilization methods
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
In practice, locking-cap flexible luer 4-way connector appears wherever a controlled fluid connection is needed:
- Laboratory fluid handling
- Irrigation sets
- Disposable diagnostic devices
- Syringe and pump connections
- IV infusion sets
The common thread is that every one of these settings needs junctions it can trust. A standardized, single-use component delivers that trust at scale: the same interface, the same seal and the same material behavior across an entire production lot, so the clinical team and the device maker are not relying on a one-off fitting at a critical point in the line.
How to Specify and Choose
A good specification answers a short list of questions up front:
- 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
- Whether the part is single-use or intended for limited reuse
Getting these settled early means the first samples are usable and the program moves to volume faster. When a standard part does not fit, the same variables become the brief for an OEM or ODM tooling project.
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.
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
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.
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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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