This article explains, in educational terms, hydrophilic guidewire — how the technology works and where it fits. Catheters and guidewires are the working tools of minimally invasive procedures, used to gain vascular access and navigate to a target inside the body. 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
Access is commonly established with an introducer sheath, which creates a stable, valved entry point through the vessel wall for exchanging devices. 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 offers a comprehensive catheter and guidewire portfolio spanning sheaths, guidewires, guiding and support catheters, microcatheters, and retrieval devices.
Hydrophilic Peripheral Guidewires
A hydrophilic coating becomes slippery when wet, which is designed to reduce friction as a guidewire is advanced through tortuous or narrowed vessels. This can aid navigation across challenging anatomy compared with an uncoated wire. InWIRE Peripheral Guidewires are offered in 0.035 inch and 0.038 inch diameters with nitinol or stainless steel cores, a hydrophilic coating, and lengths from short peripheral to exchange-length. Coating, core, diameter, and length are selected by the clinician for the specific task.
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. Sheath inner and outer diameters carry different implications for device compatibility and access, and should be confirmed in product documentation. 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.
Key Considerations
- 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.
- Product specifications and dimension ranges are provided in INVAMED documentation and reflect device design rather than guaranteed clinical outcomes.
- 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.
Frequently Asked Questions
Does the Invaducer sheath set include accessories?
Yes. The Invaducer Introducer Sheath Set includes a dilator, guidewire, syringe, and sheath, with a hemostasis valve and side port at the proximal end.
Who selects the appropriate catheter or guidewire?
A trained clinician selects devices based on the anatomy and procedural task; this content is educational and not a treatment recommendation.
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.
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
Device selection for neurovascular access is directed by the neurointerventionalist. Core selection is made by the clinician based on the navigation and support needs of the case. The GuideX Guide Extension Catheter uses a mother-and-child design and is the subject of a randomized clinical trial versus the Launcher guiding catheter in PCI (GUIDEX_FR, NCT06009757). INVAMED offers a comprehensive catheter and guidewire portfolio spanning sheaths, guidewires, guiding and support catheters, microcatheters, and retrieval devices. Access is commonly established with an introducer sheath, which creates a stable, valved entry point through the vessel wall for exchanging devices. The choice of embolization catheter and technique is determined by the interventionalist. InWIRE Peripheral Guidewires are offered in 0.035 inch and 0.038 inch diameters with nitinol or stainless steel cores, a hydrophilic coating, and lengths from short peripheral to exchange-length. 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.
Related on INVAMED
- Comprehensive Catheter & Guidewire Systems — product category
- Introducer sheath or Guiding catheter? A Technical Comparison
- Crossing and Support Catheters: How It Works and Why It Matters
- Comparing Guiding catheter alone and Guide extension catheter
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.