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Views: 0 Author: Bova Publish Time: 2026-07-20 Origin: Site
With the continuous development of minimally invasive interventions, critical care vascular access, and endoscopic surgery, traditional single-lumen catheters can no longer meet the operational requirements for simultaneous drug delivery, pressure monitoring, guidewire passage, and waste fluid aspiration. Medical multi-lumen catheters, formed through integrated co-extrusion, create multiple isolated independent channels within a single tube, enabling the simultaneous delivery of various media without cross-contamination. This is the core material for high-end medical catheters.Bova has been deeply involved in precision extrusion for many years and can stably mass-produce multi-cavity tubing with two, three, four, five, six, seven, eight, and nine cavities. It supports a variety of raw materials such as TPU, Pebax, PE, PEEK, and medical PVC, providing medical device manufacturers with one-stop tubing customization services.
Multilumen tubes with varying numbers of lumens have clearly defined application boundaries. Dual-lumen multilumen tubes are simple in structure and controllable in size, and are mostly used for basic drainage catheters, ordinary guidewire sheaths, and simple monitoring lines; three-lumen and four-lumen tubes are widely used in CVC central venous catheters and PICC catheters, and can simultaneously achieve intravenous infusion, pressure monitoring, and blood sampling; five- to six-lumen multilumen tubes are mostly used for anesthesia lines and interventional angiography catheters to meet the needs of multiple drug infusions; seven-, eight-, and nine-lumen tubes are complex micro-permeable tubes, mainly used for neurointerventional catheters, endoscopic working sheaths, and multifunctional ablation catheters, integrating multiple fluid channels and instrument channels.
Bova can customize circular cavities, crescent cavities, and irregularly shaped cavities according to customer drawings, and control the concentricity of the cavities to avoid problems such as pressure blockage and cross-contamination of fluids.
The material used for tubing directly determines the flexibility, delivery capability, and biocompatibility of the catheter. TPU has excellent elasticity and bend resistance, making it suitable for medium- to long-term indwelling vascular access catheters; Pebax combines rigidity and flexibility with strong delivery capability, making it the preferred material for peripheral interventional and balloon catheters; PE is soft and moderately priced, and is often used for short-term drainage multi-lumen catheters; PEEK is high-strength and heat-resistant, making it suitable for long-term implantable precision catheters; medical-grade PVC has excellent processing performance and is suitable for disposable basic multi-lumen tubing.Bova uses only medical-grade raw materials and can be added with radiopaque fillers to meet X-ray visualization requirements.
Complex multi-cavity structures place extremely high demands on extrusion processes and mold precision; even minute dimensional deviations can cause cavity blockage.Bova's complete basic production line is located in a Class 10,000 cleanroom, employing a closed-loop temperature control system and online laser outer diameter detection to monitor outer diameter, wall thickness, and cavity dimensions in real time, supporting both small-batch sampling and large-scale mass production. All pipes are integrally extruded, with no adhesive gaps, ensuring reliable sealing and meeting the basic biocompatibility requirements of ISO 10993. They are delivered to downstream companies in a non-sterile state for subsequent processing.
For samples, cross-sectional drawings, and parameter quotations of medical multi-lumen tubes ranging from two to nine lumens, please contact Bova. Our technical team will select the appropriate materials and optimize the structure based on your device's intended use.
