Granted Patent B2

US 10,327,892 · App. 15/219,526 · Granted Jun 25, 2019

Inventors: Tim O'Connor (Galway, IE); Pat O'Toole (Galway, IE); Patricia Kelly (Galway, IE); Coley Smyth (Co Clare, IE)

Assignee: BOSTON SCIENTIFIC SCIMED INC.

A61F2/2409A61F2/2415A61F2/2418B05D1/02B05D1/18B05D3/007A61F2210/0076A61F2220/0025A61F2250/0069

Abstract

Claims (20)

1. A method of making a support structure for a heart valve implant, comprising:

positioning an expandable metallic scaffold on a mandrel in a coating apparatus, the scaffold having a seal portion configured to receive a polymeric material thereon;

applying a masking to at least one section of the seal portion of the expandable scaffold;

applying a first layer of the polymeric material onto the seal portion of the expandable scaffold to form a seal member, wherein each of the at least one section of the seal portion having the masking is disposed between adjacent sections of the seal portion devoid of the masking;

curing the first layer;

applying a second layer of the polymeric material onto the first layer;

curing the second layer;

dissolving the masking off of the at least one section of the seal portion of the expandable scaffold, wherein after dissolving the masking, the seal member is unattached to the expandable scaffold at the at least one section of the seal portion and the seal member is attached to the expandable scaffold at the adjacent sections of the seal portion; and

removing the expandable scaffold from the mandrel.

2. The method of claim 1 , further comprising:

applying a third layer of the polymeric material onto the second layer; and

curing the third layer.

3. The method of claim 2 , wherein before applying the third layer, a reinforcing band is positioned around the expandable scaffold at a distal end thereof;

wherein applying the third layer at least partially embeds the reinforcing band within the polymeric material.

4. The method of claim 1 , wherein the masking is water soluble.

5. The method of claim 4 , wherein dissolving the masking includes applying water to the expandable scaffold.

6. The method of claim 1 , further including:

adding one or more reinforcing members to the polymeric material prior to curing.

7. The method of claim 1 , wherein applying the layers of polymeric material includes spraying the polymeric material.

8. The method of claim 1 , wherein applying the layers of polymeric material include dipping the seal portion of the expandable scaffold into the polymeric material.

Assignments (1)

Continuity (2)

Cited By (10)

US 12,232,991 US 12,453,630 US 12,544,226 US 12,582,520 US 12,588,988 US 12,588,989 US 12,588,998 US 12,594,164 US 12,599,481 US 12,636,146