METHODS OF MAKING MEDICAL DEVICES

• US 20090292352A1
• Filed: 07/31/2009
• Published: 11/26/2009
• Est. Priority Date: 06/27/2002
• Status: Abandoned Application

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Stinson, Jonathan S.
• Application Number:
  US12/533,563
• Publication Number:
  US 20090292352A1
• Time in Patent Office: Days
• US Class Current: 623/1.42
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2210/0076 multilayered, e.g. laminated structures
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes
• CPC Class Codes: A61F 2250/0067 Means for introducing or releasing pharmaceutical products into the body
• CPC Class Codes: B23K 2103/02 Iron or ferrous alloys
• CPC Class Codes: B23K 2103/04 Steel or steel alloys
• CPC Class Codes: B23K 2103/05 Stainless steel
• CPC Class Codes: B23K 2103/42 Plastics B23K2103/16 takes precedence
• CPC Class Codes: B23K 2103/50 Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
• CPC Class Codes: B23K 26/0661 disposed on the workpiece
• CPC Class Codes: B23K 26/18 using absorbing layers on the workpiece, e.g. for marking or protecting purposes
• CPC Class Codes: Y10T 29/496 Multiperforated metal article making
• CPC Class Codes: Y10T 29/49821 by altering or destroying work part or connector
• CPC Class Codes: Y10T 29/49885 with coating before or during assembling
• CPC Class Codes: Y10T 29/49982 Coating
• CPC Class Codes: Y10T 29/49996 Successive distinct removal operations

Abstract

A method of making a stent includes providing a tubular member having a first layer, the first layer and the tubular member having different compositions, removing a portion of the tubular member, and removing a portion of the first layer from the tubular member.

Claims

1-61. -61. (canceled)

62. A method of making a stent, the method comprising:

providing a member having a first layer, the first layer and the member having different compositions;

removing a portion of the member to define an opening through the member;

removing a portion of the first layer from the member; and

forming the member into the stent.

63. The method of claim 62, wherein the member has opposing edges, and the stent is formed by connecting the edges.

64. The method of claim 62, wherein the stent is formed by forming the member into a tube.

65. The method of claim 62, wherein the member is tubular.

66. The method of claim 62, wherein the member and the first layer comprise metals.

67. The method of claim 62, further comprising finishing the member into the stent.

68. The method of claim 62, wherein the first layer is directly on the member.

69. The method of claim 62, wherein the first layer is on only a portion of the member.

70. The method of claim 62, wherein the first layer is on substantially an entire surface of the member.

71. The method of claim 62, wherein a portion of the first layer is removed with the portion of the member.

72. The method of claim 62, wherein the member has a second layer, the first and second layers being on opposing surfaces of the member, and the method comprises removing a portion of the member and the first and second layers, and removing the first and second layers from the member.

73. The method of claim 62, further comprising forming the first layer on the member.

74. The method of claim 62, wherein the stent comprises struts, and the removing of the portion of the member comprises forming the struts.

75. The method of claim 62, wherein the portion of the member is removed by a laser.

76. The method of claim 62, wherein the first layer is removed by dissolving the first layer.

77. The method of claim 62, wherein the first layer is removed by melting the first layer.

78. The method of claim 62, wherein the first layer is removed by mechanically removing the first layer.

79. The method of claim 62, wherein the member comprises a material selected from a group consisting of platinum, gold, palladium, rhenium, tantalum, tungsten, molybdenum, rhenium, nickel, cobalt, stainless steel, Nitinol, and alloys thereof.

80. The method of claim 62, wherein the member comprises a material selected from a group consisting of platinum, gold, and tantalum.

81. The method of claim 62, wherein the first layer comprises a material selected from a group consisting of steel, cadmium, lead, magnesium, tin, zinc, and aluminum.

82. The method of claim 62, wherein the first layer comprises a steel.

83. The method of claim 62, further comprising forming a drug-releasing layer on the stent.

84. A stent, made according to the method of claim 62.

85. The method of claim 62, wherein the entire first layer is removed from the member.

86. The method of claim 62, wherein an entire surface portion of the first layer is removed from the member.