What tubing size works with Tethered Protective

Quick Answer

The Tethered Protective Cap (BHM-10) is offered for common tubing sizes used in sealing and protecting luer ports; exact inner/outer diameters can be specified. It is molded from polypropylene. ' . bfaq_company_name() . ' customizes dimensions on request.

Definition

A tethered protective cap 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.

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.

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 Tethered Protective Cap is supplied as a single-use molded part for sealing and protecting luer ports. Its interface follows standard conventions so it mates predictably with compatible components, and it is produced in polypropylene 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 tethered protective cap cluster around safety, consistency and supply:

Single-use design that supports sterile, disposable workflows
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

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 tethered protective cap across a range of single-use fluid-handling assemblies, including:

Laboratory fluid handling
Irrigation sets
Disposable diagnostic devices
Syringe and pump connections

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

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

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

Small-bore connectors for liquids and gases are governed by the ISO 80369 family, which is progressively replacing the historical luer standard to reduce the risk of misconnection between different clinical applications. Medical-grade resins are selected and documented for biocompatibility, and finished components are sterilized by validated methods such as ethylene oxide (EO), gamma irradiation or steam autoclave depending on the material.

For polypropylene components, the practical sterilization options are autoclave (steam) and 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

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 tethered protective cap 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.