What is Straight Spike (Barb) used for

Quick Answer

The Straight Spike (Barb) (CV-009) is a medical plastic component used in IV sets, drip flow control and bag or bottle access. It provides a secure, single-use connection in the fluid path and is molded from ABS. Baixin Bio supplies it in standard form and with OEM/ODM customization.

Definition

At its core, a straight spike (barb) 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.

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 Straight Spike (Barb) is supplied as a single-use molded part for IV sets, drip flow control and bag or bottle access. Its interface follows standard conventions so it mates predictably with compatible components, and it is produced in ABS 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

Where straight spike (barb) earns its place, it is for a handful of practical reasons:

High-volume manufacturing with stable quality
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

In short, the component earns its place by being unremarkable in the best way: it fits, it seals, it is available, and it behaves the same every time, so engineering attention can go to the device rather than the fitting.

Common Applications

The settings that rely on straight spike (barb) include:

Hemodialysis circuits
Enteral feeding sets
Laboratory fluid handling
Irrigation sets

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:

Packaging format and order volume for the program
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

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

Two standards questions dominate this category: connection geometry and sterilization. Connection geometry is increasingly defined by the ISO 80369 series, which separates applications so incompatible lines cannot mate; sterilization is handled by validated EO, gamma or steam autoclave processes matched to the resin and the device.

For ABS components, the practical sterilization options are EO and gamma; 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 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 straight spike (barb) 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.