Tynax ~ Patent Library

Patent for Sale:

Thrombectomy Catheter    

Thrombectomy microcatheter for effectively removing blood clots in the brain


A novel mechanical thrombectomy system using state-of-the-art microelectromechanical (MEMS) technology which would enable interventional neurovascular surgeons to rapidly, safely and effectively remove blood clots in the brain causing an ischemic stroke.

Primary Application of the Technology

While the technology is primarily targeted for the ischemic stroke market, it could be adapted for other thrombolytic procedures, thereby opening new markets, including:
1. Cerebral - Ischemic Stroke
2. Coronary - Coronary Thrombosis (Native Arteries and Bypass Grafts)
3. AV Access - Hemodialysis Graft Thrombosis
4. Legs - Peripheral Arterial Thrombosis
5. Venous - Deep Vein Thrombosis (DVT)
6. Lungs - Pulmonary Embolism (PE)

The Problem Solved by the Technology

Our thrombectomy system comprises of two elements

(a) a non-disposable power supply and instrument control unit that provides electrical power and allows limited tunability of the signal strength – this is based on COTS components, and

(b) single-use disposable catheter unit (guiding catheter, wire and the functional piezo integrated microcatheter) – this is the centerpiece of IP.

How the Technology Solves the Problem

The thrombectomy catheter is based on a piezo fiber tipped microcatheter platform and is designed to be a single use disposal device, controlled by a small footprint console/power unit. In our novel (and simpler) approach, the clot is fragmented efficiently by strong fluidic motion that is generated by applying a voltage across a microfabricated, piezo fiber placed at the tip of a microcatheter. The necessary flow magnitudes are achieved based on exploiting a synergistic effect purposefully created by design (by positioning of the actuating element). The absence of moving or sharp mechanical parts or focused laser energy alleviates concerns regarding tissue damage.

Competitive Advantage

Our advantages include:
• Small and flexible for operation in vessels <2-3 mm in diameter (suitable for neurovascular application)
• Ability to fragment and remove entire thrombus (includes a suction lumen)
• Minimal damage to vessel wall
• Compatible with commercial accessories (guidewires, etc.)

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 604: Surgery