Description
Short Description
Fobos manufactures custom PTFE multi-lumen tubing for medical catheter and medical device applications. This blue four-channel design combines one large lumen and three smaller independent lumens within one compact outer diameter.
• Custom four-channel PTFE multi-lumen structure
• One large working lumen plus three smaller lumens
• Custom OD, lumen size, wall and web thickness
• Blue or other colors available for product identification
• Class 10,000 cleanroom production and optional surface etching
PTFE Multi-Lumen Tubing Overview
PTFE multi-lumen tubing contains two or more independent channels inside one tube. Therefore, it can carry several fluids, wires, guide components or instruments without using separate tubes.
This custom blue design contains four independent lumens. One lumen has a larger diameter, while the other three lumens are smaller.
The large lumen can support the main function of the device. Meanwhile, the three smaller lumens can provide separate auxiliary paths.
Fobos Polymer develops PTFE multi-lumen tubing according to customer drawings, samples and assembly requirements. In addition, the lumen position, diameter and spacing can be customized for each project.
Four-Channel Structure: 1 Large + 3 Small Lumens
This four-channel PTFE multi-lumen tubing uses an asymmetrical 1+3 cross-section.
The large lumen provides more internal space for a primary fluid, instrument, guide component or internal assembly. Meanwhile, the smaller lumens can support secondary functions.
For example, the four channels may be configured as:
- One main fluid lumen with three sensor-wire channels
- One instrument lumen with three auxiliary fluid paths
- One component channel with three electrical wire holes
- One main working lumen with guidewire and monitoring channels
- One primary delivery lumen with three independent control paths
However, these are only application examples. Each lumen can be resized or repositioned according to the customer’s cross-sectional design.
As a result, one PTFE multi-lumen tube can combine several functions while maintaining channel separation.
Why Use PTFE Multi-Lumen Tubing?
Using several individual tubes can increase the size and complexity of a medical device assembly. In contrast, multi-lumen tubing integrates multiple channels into one extruded component.
Therefore, PTFE multi-lumen tubing may help simplify component routing and reduce the number of separate tubes.
Additional benefits include:
- Multiple isolated channels within one outer diameter
- Independent fluid, wire and guide paths
- Fewer individual tubing components
- Compact cross-sectional design
- Custom lumen placement
- Easier component organization
- Color coding for assembly identification
Moreover, PTFE provides a smooth internal surface. Therefore, guidewires, sensor wires and fluids can pass through the channels with reduced resistance.
Custom PTFE Multi-Lumen Tubing Parameters
Fobos does not limit this product to one standard size. Instead, each PTFE multi-lumen tubing project is developed according to a drawing or approved sample.
| Parameter | Customization Options |
|---|---|
| Product Type | Custom PTFE multi-lumen tubing |
| Channel Configuration | 1 large lumen + 3 small lumens |
| Number of Lumens | Four |
| Material | PTFE grade selected for the application |
| Color | Blue, natural or other custom colors |
| Outer Diameter | Custom; general capability from 0.20–20mm |
| Large Lumen ID | Custom |
| Small Lumen ID | Individually customizable |
| Wall Thickness | Custom |
| Web Thickness | Custom between adjacent lumens |
| Dimensional Tolerance | Down to approximately ±0.02mm may be evaluated |
| Length | Cut length or continuous length |
| Surface Treatment | Natural or chemically etched |
| Production Environment | Class 10,000 cleanroom available |
The final tolerance depends on the complete multi-lumen structure. Therefore, Fobos evaluates the OD, lumen dimensions, wall thickness and web thickness together.
In addition, the large and small lumens may require different tolerance levels. Customers should identify critical dimensions clearly on the drawing.
Custom Lumen Position and Geometry
The position of each lumen affects the wall thickness and extrusion stability. Therefore, the entire cross-section must be reviewed before tooling development.
Fobos can evaluate:
- Round or custom outer profiles
- Central or offset large lumens
- Symmetrical or asymmetrical lumen arrangements
- Different diameters for each lumen
- Custom wall thickness around the tube
- Custom web thickness between channels
- Fluid and wire channels in one structure
- Special profiles based on samples or drawings
For this blue PTFE multi-lumen tubing, the large lumen is positioned beside three smaller lumens. As a result, the design provides one main working channel and three compact auxiliary paths.
Blue PTFE Multi-Lumen Tubing
Natural PTFE is normally white or translucent. However, custom colors can be added when the application requires visual identification.
The blue color can help distinguish:
- Different tubing models
- Different lumen configurations
- Different component sizes
- Different assembly groups
- Different production batches
- Different functional components
Therefore, blue PTFE multi-lumen tubing can support visual control during production and assembly.
Moreover, other colors can be evaluated. The final color and PTFE formulation should be selected according to the customer’s material and application requirements.
PTFE Material Properties
PTFE provides several useful properties for multi-lumen tubing:
- Low-friction internal surfaces
- Strong chemical resistance
- Good electrical insulation
- Low surface adhesion
- Resistance to moisture
- Resistance to aging
- Smooth lumen surfaces
- Broad service-temperature capability
Because the lumens have smooth internal surfaces, fine wires and guide components can move with lower resistance.
In addition, PTFE resists many chemicals and cleaning agents. Therefore, it can support fluid-handling and precision medical device applications.
However, final performance depends on the selected PTFE grade, color formulation and tubing dimensions. Consequently, material selection should be confirmed during project development.
Medical Applications of PTFE Multi-Lumen Tubing
This custom four-channel PTFE multi-lumen tubing can support medical components that require several independent paths.
Typical applications include:
- Medical catheter assemblies
- Minimally invasive device components
- Guidewire channels
- Fluid and drug delivery systems
- Sensor-wire routing
- Electrical wire protection
- Pressure-monitoring channels
- Endoscopic device components
- Diagnostic equipment
- Precision fluid-control devices
For example, the large lumen may carry an instrument or primary fluid. Meanwhile, the smaller lumens can route guidewires, sensors or auxiliary fluids.
Fobos develops each PTFE multi-lumen tube around the customer’s required cross-section. Therefore, the same four-channel concept can support different device designs.
Optional Surface Etching
Untreated PTFE has a low-energy surface. Therefore, common adhesives may not bond to it effectively.
Chemical etching can modify the outer surface. As a result, the PTFE multi-lumen tubing can be bonded more easily to hubs, connectors, reinforcement layers and other components.
Customers can specify:
- Full or partial surface etching
- Required etched length
- One-end or two-end etching
- Bonding area
- Intended adhesive
- Packaging requirements
Moreover, etched surfaces require controlled handling and storage. Therefore, the etching area should be confirmed before production.
Class 10,000 Cleanroom Production
Class 10,000 cleanroom production is available for custom medical PTFE multi-lumen tubing projects.
The cleanroom image on this page shows Fobos Polymer’s actual production environment. In addition, it demonstrates our ability to support controlled medical tubing production.
Production and inspection can include:
- Raw-material confirmation
- Color confirmation
- Cross-sectional drawing review
- Multi-lumen tooling development
- Trial extrusion
- OD and lumen measurement
- Wall and web-thickness inspection
- Appearance inspection
- Sample approval
- Batch production and packaging
First, Fobos reviews the required multi-lumen cross-section. Next, our team develops the tooling and produces trial samples.
Afterward, the critical dimensions are measured and confirmed. Finally, batch production begins after sample approval.
Fobos PTFE Multi-Lumen Tubing Capability
Fobos Polymer specializes in custom PTFE tubing and medical device material components. Moreover, the company is supported by SUKO’s PTFE processing and equipment engineering experience.
This combined experience helps us evaluate the relationship between material, tooling and extrusion stability. Therefore, we can develop complex multi-lumen structures more effectively.
Our PTFE multi-lumen tubing experience includes:
- Four-channel PTFE tubing
- Six-lumen PTFE tubing
- Seven-channel PTFE tubing
- One large lumen with surrounding small lumens
- Separate fluid and wire channels
- Symmetrical and asymmetrical structures
- Custom-colored multi-lumen tubing
- Etched multi-lumen tubing
- Customer-specific cross-sectional profiles
The blue 1+3 tube shown on this page is an actual custom PTFE multi-lumen extrusion sample. Therefore, it represents real tooling and manufacturing capability.
PTFE Multi-Lumen Tubing Development Process
Every multi-lumen tubing project starts with the required cross-section.
First, the customer provides a drawing, sample or dimensional concept. Next, Fobos reviews the lumen arrangement and minimum wall thickness.
Then, our team evaluates tooling and extrusion feasibility. After that, trial samples can be produced for measurement and assembly evaluation.
Once the sample is confirmed, Fobos can arrange batch production according to the required length, quantity and packaging method.
Information Required for a Quote
Please provide the following information:
- Required outer diameter
- Number of lumens
- Large lumen diameter
- Diameter of each small lumen
- Position of each lumen
- Minimum wall thickness
- Minimum web thickness
- Required tubing length
- Order quantity
- Dimensional tolerances
- PTFE grade and color
- Surface etching requirements
- Intended assembly method
A cross-sectional drawing is strongly recommended. Therefore, our engineers can evaluate the complete PTFE multi-lumen tubing structure and prepare a more accurate quotation.
FAQ
What is PTFE multi-lumen tubing?
PTFE multi-lumen tubing contains several independent channels within one outer tube. Therefore, it can integrate fluid, guidewire, sensor and electrical paths into one component.
How many lumens can Fobos customize?
Fobos has experience with four-lumen, six-lumen, seven-channel and other customer-specific structures. The final lumen count depends on the OD, channel dimensions and minimum wall thickness.
Can each lumen have a different diameter?
Yes. Each lumen can have an independent size and position. However, the complete cross-section must support stable extrusion.
Can the large lumen be moved to another position?
Yes. Fobos can evaluate central, offset and asymmetrical lumen arrangements according to the customer’s drawing.
Can PTFE multi-lumen tubing be produced in different colors?
Yes. Natural, blue and other custom colors can be evaluated according to the project requirements.
Can the tubing be chemically etched?
Yes. Full or partial chemical etching is available when the tubing requires adhesive bonding or component assembly.
Is cleanroom production available?
Yes. Class 10,000 cleanroom production is available for custom medical PTFE multi-lumen tubing projects.
Can Fobos customize the tubing for my catheter design?
Yes. Fobos can customize the lumen arrangement, OD, lumen dimensions, wall thickness, color, length and surface treatment.
Can I receive trial samples?
Yes. After the drawing, material and tooling requirements are confirmed, Fobos can arrange trial extrusion and sample evaluation.
Request Custom PTFE Multi-Lumen Tubing
Send Fobos Polymer your cross-sectional drawing, lumen dimensions, OD, length, quantity, color and tolerance requirements.
In addition, please include your etching and assembly requirements. Therefore, our team can evaluate the four-channel PTFE multi-lumen tubing project and prepare a quotation.
Phone / WhatsApp: +86 19975113419
Contact: https://fobospolymer.com/contact/
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