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Side-delivered transcatheter heart valve replacement

a transcatheter heart valve and prosthesis technology, applied in the field of side-delivered transcatheter heart valve replacement, can solve the problems of prone to fracture of the strut of the valve, not fully correcting the valve problem, and placing the valve in the descending aorta instead of the heart itsel

Active Publication Date: 2020-03-26
VDYNE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one downside of this design was that it could only be placed in the descending aorta instead of the heart itself.
For this reason it did not fully correct the valve problem, only alleviate the symptoms.
However, the struts of these valves tended to fracture from fatigue over time.
However, a downside of this design is that it allows some regurgitation.
Additionally, a problem with stent-style replacement valves is that they often continue to have the regurgitation or leakage problems of prior generations of valves, as well as require expensive materials engineering in order to cope with the 100's of millions of cycles encountered during just a few years of normal heart function.

Method used

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  • Side-delivered transcatheter heart valve replacement
  • Side-delivered transcatheter heart valve replacement
  • Side-delivered transcatheter heart valve replacement

Examples

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example

[0198]The transcatheter prosthetic heart valve may be percutaneously delivered using a transcatheter process via the femoral through the IVC, carotid, sub-xyphoid, intercostal access across the chest wall, and trans-septal to the mitral annulus through the fossa ovalis. The device is delivered via catheter to the right or left atrium and is expanded from a compressed shape that fits with the internal diameter of the catheter lumen. The compressed valve is loaded external to the patient into the delivery catheter, and is then pushed out of the catheter when the capsule arrives to the atrium. The cardiac treatment technician visualizes this delivery using available imaging techniques such as fluoroscopy or ultrasound, and in a preferred embodiment the valve self-expands upon release from the catheter since it is constructed in part from shape-memory material, such as Nitinol®, a nickel-titanium alloy used in biomedical implants.

[0199]In another embodiment, the valve may be constructed...

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Abstract

The invention relates to a transcatheter heart valve replacement (A61F2 / 2412), and in particular to a side delivered large diameter, low profile transcatheter prosthetic valve having a compressible tubular frame having a side wall and a central axial lumen, said tubular frame having a height of 8-20 mm and a diameter of 40-80 mm, an atrial sealing cuff, a subannular anchoring component, and aa flow control component comprising a leaflet structure, wherein the valve is side-delivered longitudinally to a mitral valve annulus or tricuspid valve annulus of a patient using a 22-34 Fr delivery catheter.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Provided by Application Data Sheet per USPTO rules.STATEMENT REGARDING FEDERALLY SPONSORED R&D[0002]Provided by Application Data Sheet per with USPTO rules.NAMES OF PARTIES TO JOINT RESEARCH AGREEMENT[0003]Provided by Application Data Sheet per with USPTO rules.REFERENCE TO SEQUENCE LISTING[0004]Provided by Application Data Sheet per USPTO rules.STATEMENT RE PRIOR DISCLOSURES[0005]Provided by Application Data Sheet per USPTO rules.BACKGROUND OF THE INVENTIONField of the Invention[0006]The invention relates to a transcatheter heart valve replacement (A61F2 / 2412).Description of the Related Art[0007]In 1952 surgeons implanted the first mechanical heart valve. This first valve was a ball valve and it was designed by Dr. Charles Hufnagel. The recipient of this valve was a 30-year-old woman who could lead a normal life after the surgery. However, one downside of this design was that it could only be placed in the descending aorta instead of the...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/24A61L27/36A61L31/02A61L31/12A61L31/14A61F2/91A61L31/00
CPCA61F2002/068A61L31/005A61F2220/0008A61F2/2409A61L31/022A61F2/2418A61F2/2436A61L31/14A61L31/129A61L27/3625A61F2210/0014A61F2230/0067A61F2/91A61F2230/0013
Inventor CHRISTIANSON, MARKVIDLUND, ROBERTSAIKRISHNAN, NEELAKANTAN
Owner VDYNE INC