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WiZeCell™ Design

This case outlines the first in-patient implantation of the NIRxcell cobalt chromium bare metal stent system (Medinol). This challenging case involved a patient with flow-limiting lesions and extensive coronary aneurysms. The new NIRxcell stent system offers very good scaffolding properties while conforming to the vessel’s natural form and dynamic motion. In addition, the delivery system of NIRxcell includes an innovative metallic spring tip that was designed to enhance cross-ability by its superior flexibility and buckle resistance. Other stent delivery systems, typically having polymer distal tips, are prone to flare-out and buckling that may impact deliverability.

Stent Performance

The stent was deployed at a nominal pressure of 12 ATM. To treat the dissection, a second bare metal stent (NIRxcell) 3.0/17mm was placed proximal (but not overlapping) to the previously implanted stent. A third bare metal stent (NIRxcell) 3.0/17mm was delivered through the proximal stent and implanted between these two stents overlapping them. The resulting angiography showed a smooth scaffolding of the artery without evidence of lesion prolapse (Figure 4), with a slight narrowing of the septal branch ostium. The ostium of the septal branch was subsequently dilated with a semi-compliant balloon with a good final result.

The WiZeCell Design achieves its simultaneous flexibility, conformability, and support owing to its unique multi-strut architecture, which is comprised of:
  • Flexible narrow strut rings

    Providing maximum flexibility and conformability, even dynamically during systolic cycles

  • Wide supportive strut rings

    Providing radial force and vessel support. Need an additional Text for cool lockong Design.

Moreover, the WiZeCell Design’s unique geometry enables optimal side branch access after deployment, and helps streamline the delivery process by eliminating strut overhang.

  • Low Crossing Profile and High Flexibility
  • Optimal Conformability and Scaffolding
True Entry Profile:

Coronary arteries are rarely straight therefore the true entry profile is measured on a curve. Plastic tips gap and "fishmouth" while the Flexx² Spring tip continues to closely hug the wire

  • EluNIR
  • Regular DES
  • Regular DES
True Entry Profile:

Coronary arteries are rarely straight therefore the true entry profile is measured on a curve. Plastic tips gap and "fishmouth" while the Flexx² Spring tip continues to closely hug the wire

  • Narrow “Z” struts provide flexibility and conformability
  • Wide “W” struts provide excellent radial strength
  • Optimal cell size provides uniform scaffolding and prevents tissue prolapse and strut overlap