Method and device for crimping and loading heart valve

• US 9,980,817 B2
• Filed: 10/08/2015
• Issued: 05/29/2018
• Est. Priority Date: 10/08/2015
• Status: Active Grant

• Current Assignee: Shlomo Gabbay
• Original Assignee: Shlomo Gabbay
• Inventors: Gabbay, Shlomo
• Primary Examiner(s): Wilson, Lee D
• Application Number:
  US14/878,045
• Publication Number:
  US 20170100243A1
• Time in Patent Office: 964 Days
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2230/0091 helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: A61F 2310/00011 Metals or alloys

Abstract

A method of crimping and loading prosthetic heart valves comprises folding a crimping sheet to form a spiral wrapped around a heart valve; manually rolling and tightening the spiral to compress the valve inside the spiral; inserting the tightened spiral wrapped around the valve into a cannula; and displacing the valve out of the tightened spiral and into the cannula. A kit for crimping and loading the valve into a delivery device comprises a crimping sheet foldable to form a spiral wrapped around the valve, the spiral manually rollable and tightenable to compress the valve wrapped inside the spiral, so that the tightened spiral is slidably insertable into a lumen of a cannula for delivering the valve; and a plunger sized for insertion into the tightened spiral to displace the heart valve out of the spiral and into the lumen of the cannula.

Claims

1. A crimping and loading kit, comprising:

a prosthetic heart valve;

a crimping sheet foldable to form a spiral wrapped around the prosthetic heart valve, said spiral manually rollable and tightenable to compress the prosthetic heart valve wrapped inside said spiral, so that the tightened spiral is slidably insertable into a lumen of a cannula for delivering the prosthetic heart valve;

a plunger sized for insertion into said tightened spiral to displace the prosthetic heart valve out of the spiral and into said lumen of said cannula; and

a restriction ring sized to slide over said tightened spiral to prevent loosening of the tightened spiral.

2. The kit of claim 1, further comprising said cannula, wherein said lumen of said cannula is sized to house the compressed heart valve.

3. The kit of claim 1, wherein said crimping sheet comprises a metal or a plastic.

4. The kit of claim 1, wherein said crimping sheet has a thickness of less than 1 mm.

5. The kit of claim 1, wherein said cannula is in a trocar.

6. The kit of claim 1, wherein said lumen of said cannula has a diameter from 1 mm to 40 mm.

7. The kit of claim 1 comprising a plurality of cannulas having different lumen diameters.

8. The kit of claim 7, wherein the lumen diameters are selected from 18, 21, 23, 24, 25, 27, 29, 31, 33, and 35 mm.

9. The kit of claim 1, wherein the heart valve is a stented sutureless mitral, aortic, tricuspid, or pulmonic valve.