CATALOG Electrically Steerable Guidewire: Precision Navigation for Complex Vasculature

After over two years of dedicated in-house R&D, CATALOG Precision Components (Suzhou) Co., Ltd. proudly introduces its Electrically Steerable Memory Guidewire—a transformative tool for the minimally invasive interventional treatment of cardiovascular and neurovascular diseases. Specifically engineered for navigating tortuous and complex anatomical pathways, this guidewire represents a significant leap in procedural control.

Core Technology & Material Science:

The guidewire is constructed from medical-grade Nitinol (Nickel-Titanium alloy), leveraging its exceptional biocompatibility, shape memory effect, and superelasticity. The key innovation is its electrically activated steering mechanism. By modulating current, physicians can precisely control the deflection angle of the distal tip in real-time, enabling intuitive and responsive navigation.

Clinical Advantages:

This technology empowers clinicians to smoothly manipulate the guidewire, rapidly cruise through complex vascular networks, and achieve accurate, efficient device delivery. It reduces procedural time, contrast usage, and fluoroscopy exposure while potentially improving success rates in challenging cases.

Broad Application Scope:

As a core consumable for advanced minimally invasive surgery, this guidewire is designed for a wide spectrum of interventions, including:

Cardiac Surgery (PCI, structural heart)

Peripheral Vascular Interventions

Neurovascular Surgery (Aneurysm coiling, thrombectomy)

Digestive & Biliary Procedures

It provides a comprehensive, adaptable solution to meet the differentiated requirements of various organs for guidewire size, flexibility, trackability, and now, active steerability.

Pain Point Analysis & Solutions: Electrically Steerable Memory Guidewire

Challenge	CATALOG’s Response	Outcome
1. Limited Maneuverability in Micro-Vasculature The complex vascular network includes branches as small as 2.5mm in diameter. Traditional guidewires lack the fine tip control and flexibility required for reliable navigation into these tortuous, small-caliber vessels.	Micro-Diameter Design with Active Steering • Ultra-Small Profile: Features a 0.55mm outer diameter and a Nitinol spring coil structure for inherent flexibility. • Real-Time Active Deflection: Electrically controlled tip deflection with a fast response time (≤0.2s) enables precise, dynamic navigation.	• Enhanced Access to Distal Vasculature: Achieves flexible traversal of small and tortuous vessels, significantly improving trackability and success rates in complex anatomies.
2. Prolonged Procedure Time & High Radiation Exposure Manual, iterative adjustment of traditional guidewires extends procedure time, leading to increased fluoroscopy (X-ray) exposure for both the patient and clinical staff, raising cumulative radiation risk.	Streamlined, Efficient Navigation • Precision Control: Enables direct, accurate tip placement, reducing trial-and-error maneuvers and subsequent adjustments. • Eliminates Pre-Shaping: No need for manual pre-bending, simplifying setup and workflow.	• Increased Procedural Efficiency: Significantly shortens total procedure time, directly leading to a reduction in radiation dose exposure for all parties.
3. High Risk of Vessel Wall Trauma & Dissection The fixed shape and rigidity of traditional guidewires create high-friction points and perpendicular force against vessel walls, increasing the risk of intimal injury, dissection, or perforation.	Atraumatic, Conformable Navigation • Inherent Material Softness: Utilizes Nitinol's superelasticity to minimize hard, abrasive contact. • Directional Conformity: The tip can be steered to align with the vessel's natural curvature, promoting smooth, "center-line" navigation.	• Improved Procedural Safety: Actively reduces vessel wall contact force and friction, lowering the risk of iatrogenic vascular injury and associated complications.
4. Poor Fluoroscopic Visibility & Imprecise Tip Localization In complex, overlapping anatomy, suboptimal radiopacity makes it difficult to clearly visualize the guidewire's path and precise tip position, risking malpositioning and procedural errors.	Enhanced Radiopacity Options • Integrated Radiopaque Markers: Supports integration of welded marker bands or plating treatments (e.g., gold) at the distal tip and/or along strategic lengths.	• Superior Intraoperative Visualization: Provides clear, unambiguous fluoroscopic visibility of the guidewire trajectory and tip location, enhancing positional accuracy and reducing navigation-related risks.

CATALOG Spring Solutions

Physiologically Optimized Activation

The third-generation guidewire is engineered for precise, body-temperature actuation. It performs its shape-change function within a 37.5°C liquid medium, perfectly matching human physiological temperature. This significantly enhances the rigor and relevance of preclinical testing and clinical performance predictability.

Enhanced Visualization & Future-Ready Platform

Superior Radiopacity: Compatible with integrated radiopaque marker bands or specialized plating treatments (e.g., gold) for excellent intraoperative fluoroscopic visibility and precise tip localization.

Modular Platform: The core technology platform is designed for future compatibility with graded-stiffness and multi-strand guidewire configurations, ensuring adaptability to evolving, diverse clinical needs.

High-Efficiency, Low-Power Drive System

Operates on a low-voltage, low-current drive (5-6V, 200-300mA), with a conventional power consumption of only 1-1.8W. It achieves an ultra-fast response time (≤0.2s) at vessel bifurcations and provides a wide active deflection range (up to 270°) within a safe, controlled temperature range (37.5–43°C), enabling rapid, precise navigation.

Inherent Safety & Navigational Stability

Leveraging Nitinol's inherent superelasticity and flexibility combined with a specialized structural design, the guidewire offers superior directional control, accuracy, and stability. This reduces operator error and minimizes the risk of vessel wall trauma, dissection, or perforation during navigation.

Micro-Scale Design for Distal Access

Manufactured using ultra-fine 0.2mm diameter Nitinol wire, the guidewire features a dramatically reduced outer body diameter of just 0.55mm. This represents an 18.18% reduction from the previous 0.65mm generation, enabling superior access and navigation within small-caliber and distal vasculature.

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