Technology Listings


MitraPlug: Transcatheter Mitral Valve Repair

Application

Repair of mitral valve regurgitation, using a minimally-invasive transcatheter-based technology.

Key Benefits
  • Can be delivered using a one-shot transcatheter approach via the apex of the heart.
  • Miniature adjustable plug mounts directly on the valve leaflets, closing the gap between the leaflets and eliminating leakage.
  • Designed to be implanted by an interventional cardiologist under echo guidance with a small (< 2?) incision in the chest.
Market Summary

Mitral regurgitation secondary to a heart attack is estimated at 400,000 patients annually in the United States and Europe, yet reliable technologies to correct this lesion are currently lacking. Uncorrected mitral regurgitation accelerates congestive heart failure, with most patients eventually becoming nonresponsive to drug therapy. Referral cardiologists often shy away from highly invasive open-heart surgery for their patients. Transcatheter repair therapies provide a viable solution for these patients.

Technical Summary

The MitraPlug consists of a novel catheter-plug system to eliminate mitral regurgitation, and halt the progression of the heart towards congestive failure. Correction of mitral regurgitation using this technology requires a small, two-inch incision between the ribs on the patient?s chest through which a catheter is introduced into the heart via the ventricular apex. An inflatable plug is implanted on one or more of the mitral leaflets by the catheter under 3D echocardiographic guidance. The position and size of the plug are then adjusted until mitral regurgitation is completely eliminated as seen on real-time color Doppler imaging. The catheter is then retracted out of the beating heart and the apical incision is closed. Considering the minimal invasiveness of this procedure, the patient may require only general anesthesia and can leave the hospital within one day of the procedure, similar to coronary stent implantation.

Developmental Stage

Prototype has been constructed and proof-of-principle has been demonstrated in a large animal model.

Patent Information
App Type Country Serial No. Patent No. File Date Issued Date Expire Date Patent Status
Nationalized PCT - United States United States 14/343,183 9,510,948 3/6/2014 12/6/2016 9/7/2032 Issued
Nationalized PCT - Foreign Japan 2020-503766   1/23/2020     Pending
Nationalized PCT - United States United States 16/634,107 1/24/2020     Pending
Tech ID: NCS.23
Published: 6/19/2017
Category
Medical Device

Contact
Cale Lennon
Director, Licensing
Emory University
404-712-4758
jlennon@emory.edu

Inventor(s)
Sai Muralidhar Padala
Eric Sarin

Keywords
Cardiovascular
Hospital and Surgery