Catheter shaft and method of its manufacture

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United States of America Patent

PATENT NO 9987463
SERIAL NO

15140750

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Abstract

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A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes.

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Patent Owner(s)

Patent OwnerAddress
ST JUDE MEDICAL ATRIAL FIBRILLATION DIVISION INCONE ST JUDE MEDICAL DRIVE ST PAUL MN 55117-9913

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guo, Xiaoping Eden Prairie, US 44 1030
Stehr, Richard E Tucson, US 70 4727

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