Methods for manufacturing a coated stent-balloon assembly
First Claim
1. A method of manufacturing a coated stent-balloon assembly, comprising:
- forming a sacrificial layer on a balloon of a catheter assembly prior to mounting a stent on the balloon;
mounting the stent, having struts separated by gap regions, on the balloon;
followed byforming a stent coating on the stent, comprising;
depositing a coating material on the stent; and
removing the sacrificial layer from the balloon, wherein the coating material remains on an outer surface of the stent, and areas of the balloon exposed by the gap regions of the stent are free from any stent coating.
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Accused Products
Abstract
Methods of coating a stent subsequent to mounting or crimping of the stent on a balloon of a catheter assembly are disclosed. One method includes forming a sacrificial layer on a balloon of a catheter assembly; followed by mounting a stent on the balloon, the stent including struts separated by gaps; followed by forming a stent coating on the stent; and followed by removal of the sacrificial layer. Another method includes mounting a stent on a balloon, the stent including struts separated by gaps; followed by forming a sacrificial layer on the balloon in the areas of the gaps between struts of the stent; followed by forming a coating on the stent; and followed by removing the sacrificial layer, wherein the coating remains on an outer surface of the stent.
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Citations
19 Claims
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1. A method of manufacturing a coated stent-balloon assembly, comprising:
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forming a sacrificial layer on a balloon of a catheter assembly prior to mounting a stent on the balloon; mounting the stent, having struts separated by gap regions, on the balloon;
followed byforming a stent coating on the stent, comprising; depositing a coating material on the stent; and removing the sacrificial layer from the balloon, wherein the coating material remains on an outer surface of the stent, and areas of the balloon exposed by the gap regions of the stent are free from any stent coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of manufacturing a coated stent-balloon assembly, comprising:
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mounting a stent, having struts separated by gap regions, on a balloon of a catheter assembly;
followed byforming a stent coating on the stent, wherein areas of the balloon exposed by the gap regions of the stent are free from any stent coating, and forming the stent coating comprises; forming a sacrificial layer on the areas of the balloon exposed by the gap regions between the struts of the stent;
followed bydepositing a coating material on the stent;
followed byremoving the sacrificial layer, wherein the coating material remains on an outer surface of the stent. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of manufacturing a coated stent-balloon assembly, comprising:
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forming a sacrificial layer on a balloon of a catheter assembly;
followed bymounting a stent on the balloon, the stent including struts separated by gaps;
followed byforming a stent coating on the stent;
followed byremoval of all or substantially all of the sacrificial layer. - View Dependent Claims (17, 18)
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19. A method of manufacturing a coated stent-balloon assembly, comprising:
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mounting a stent on a balloon, the stent including struts separated by gaps;
followed byforming a sacrificial layer on the balloon in the areas of the gaps between struts of the stent;
followed byforming a coating on the stent;
followed byremoving the sacrificial layer, wherein the coating remains on an outer surface of the stent.
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Specification