This article explains, in educational terms, guiding catheter tip shapes — how the technology works and where it fits. These tools are applied across endovascular, neurovascular, and urological interventions, from crossing coronary and peripheral lesions to accessing the urinary tract. As a medical device manufacturer, INVAMED develops technologies in this area; the information here is educational and not medical advice.
Background: Endovascular, Neurovascular and Urological Access and Delivery
Catheters and guidewires are the working tools of minimally invasive procedures, used to gain vascular access and navigate to a target inside the body. Access is commonly established with an introducer sheath, which creates a stable, valved entry point through the vessel wall for exchanging devices. These tools are applied across endovascular, neurovascular, and urological interventions, from crossing coronary and peripheral lesions to accessing the urinary tract.
Guiding Catheters and Tip Shapes
Guiding catheters provide a conduit and backup support to deliver devices to a target, with preformed tip shapes to engage specific vessel origins. Different tip shapes are designed to suit cardiac and peripheral anatomies and the vessels being engaged. AngioCATH Guiding Catheters use durable PEBAX/PA polymer construction with a PTFE-coated lumen and multiple tip shapes for cardiac and peripheral anatomies. The appropriate tip shape and catheter are chosen by the clinician for the target anatomy.
Design and Technical Notes
INVAMED organizes its catheter and guidewire portfolio by function — access, crossing, support, delivery, and retrieval — across sizes, tip shapes, and coatings. Device sizing across French, inch, and centimeter units must be matched to the vessel, the access site, and the devices being delivered, as determined by the clinician. All INVAMED catheter and guidewire devices are intended for use by trained clinicians under appropriate imaging guidance and per the IFU.
Key Considerations
- For a device under active study such as the GuideX guide extension in the GUIDEX_FR trial (NCT06009757), any comparative claims are for the trial to establish.
- Tip shape, coating, core material, and support characteristics are selected to fit the specific navigation, crossing, or delivery task.
- Product specifications and dimension ranges are provided in INVAMED documentation and reflect device design rather than guaranteed clinical outcomes.
Frequently Asked Questions
What construction do the AngioCATH guiding catheters use?
AngioCATH Guiding Catheters use durable PEBAX/PA polymer construction with a PTFE-coated lumen and multiple tip shapes for cardiac and peripheral anatomies.
What is the GuideX guide extension catheter?
GuideX is INVAMED's mother-and-child guide extension catheter, which is the subject of a randomized clinical trial versus the Launcher guiding catheter in PCI (GUIDEX_FR, NCT06009757).
What guidewire diameters does INVAMED offer?
INVAMED's InWIRE range includes 0.014 and 0.018 inch CTO / recanalization wires and 0.035 and 0.038 inch peripheral wires, plus a dedicated neurovascular guidewire; the choice is made by the clinician.
About INVAMED
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
Clinical and Technical Context
A guidewire is a thin, steerable wire that a clinician advances first to establish a path, over which catheters and other devices are then delivered. Access is commonly established with an introducer sheath, which creates a stable, valved entry point through the vessel wall for exchanging devices. Its use is directed by the neurointerventionalist according to the procedure and anatomy. Catheters and guidewires are the working tools of minimally invasive procedures, used to gain vascular access and navigate to a target inside the body. INVAMED's crossing support catheters feature a reinforced shaft, hydrophilic coating, and low profile, while the ZEBRA support catheter adds a ZEBRA-pattern radiopaque coating. Device selection for neurovascular access is directed by the neurointerventionalist. Which diameter is used depends on the vessel, the devices being delivered, and clinician preference. InWIRE Peripheral Guidewires are available with nitinol or stainless steel cores in 0.035 inch and 0.038 inch diameters.
Related on INVAMED
- Comprehensive Catheter & Guidewire Systems — product category
- Urology Guidewires: Technology, Uses and Considerations
- Steerable and Re-entry Catheters: Technology, Uses and Considerations
- Understanding Endovascular Snares
Important Disclaimer
This content is educational and technical in nature and must not be interpreted as medical advice or as a promise of any clinical outcome. Individual results depend on many factors and can only be evaluated by a treating physician. Figures attributed to INVAMED reflect manufacturer or published data and are not a guarantee of results. All INVAMED devices are to be used by trained clinicians per the approved IFU, and availability is subject to local regulatory status.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.