Ready for Integration, New Wireless Transcutaneous Energy Transfer (TET) System for LVADs 

Yigal Kassif 1 Stephan Schueler 3 Sharona Bistry 2 Michael zilbershlag 2
1Cardiac Surgery, Chaim Sheba Medical Center
2CEO, R&D Leviticus Cardio
3Cardiac Surgery, Freeman Hospital Freeman Hospital Newcastle upon Tyn

Present VAD driveline is the Achilles heal of long term VAD therapy.

Infections and line damage are life threatening events.

Previous experimental TET systems demonstrated limited efficiency caused thermal injury and limited mobility. Leviticus-Cardio has developed a unique Coplanar Energy Transfer system (CET), the CET system replaces the traditional controller and battery, thus eliminating the need of drive line connection.

 

The CET system show several improvement on old TET approach for wireless LVAD:

  • No patient anxiety -Does not rely on patient alarms awareness, low sensitivity to body motion; Stable location 
  • Fast Charging - Up to 30w power transfer; no heating; no direct skin contact; no friction.
  • Easy access to battery replacement - Subclavian / Abdominal wall battery position

The CET is full operating, ready for integration, test In vitro with 7 VAD and In Vivo using a Jarvik LVAD.

The in vitro testing runs a full log for one life span of external and the rechargeable internal batteries using a closed water circuit with 7 commercial LVADs (4 full test 2 short) HeartMate II, CorAide, Jarvik Adult and Pediatric, Ventrassist, HVAD. Demonstrated stable operation by the CET system

In Vivo acute porcine check the efficiency and revealed similar high efficiency results.

Iv Vivo chronic operate the CET system for more than 24 hours

 Table

 This CET system is a promising new tool for future LVAD technology with reliable energy transfer, efficiency and consistency. This device will allow to operate different LVADs safely, thus expanding LVAD applications with lower risk of morbidity and a much better quality of live.

 









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