Cornell University

Seyedhamidreza Alaie

James K Min

Bobak Mosadegh

Simon Dunham

Sanlin S Robinson

Amir Ali Amiri Moghadam

Subhi Al'Aref

Implanted medical devices need a mechanism of immobilization to surrounding tissues, which minimizes tissue damage while providing reliable long-term anchoring. This disclosure relates to techniques for patterning arbitrarily shaped 3D objects and to patterned balloon devices having micro- or nano-patterning on an outer surface of an inflatable balloon. The external pattern can provide enhanced friction and anchoring in an aqueous environment. Examples of these types of patterns are hexagonal arrays inspired by tree frogs, corrugated patterns, and microneedle patterns. The patterned balloon devices can be disposed between an implant and surrounding tissues to facilitate anchoring of the implant.

Systems and methods for micropatterning objects

Systems and method to measure pressure are described herein. The system can include a force sensor can that be implanted into a patient to measure, for example, cardiac pressure. The force sensor can include first and second film layers that can define a plurality of pressure cells. An external pressure can deform the pressure cells and change their resonant frequency. When exposed to an acoustic signal, the pressure cells can resonant at a pressure-dependent resonant frequency. The system can detect reflected acoustic waves generated by the resonance of the pressure cells. The system can convert the frequency readings into pressure values.

Acoustic transponders for wireless pressure monitoring using flexible acoustic resonators

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New York, NY, United States of America

Seyedhamidreza Alaie