05-01-2017 дата публикации
Номер: US20170000973A1
A catheter that includes an inner layer forming the inner surface of a tubular catheter main body having a lumen, an outer layer forming the outer surface of the catheter main body, and multiple reinforcements embedded between the inner surface and the outer surface. The inner diameter of the catheter main body is D, the outer diameter is D, the wall thickness is T, a thickness of each reinforcement is T, an effective width of each reinforcement is W, and a total number of the multiple reinforcements is N. The catheter satisfies Expressions (1), (2), and (3): 1. A catheter comprising:an inner layer forming an inner surface of a tubular catheter main body having a lumen;an outer layer forming an outer surface of the catheter main body, the catheter main body possessing an inner diameter, an outer diameter and a wall thickness;multiple reinforcements embedded between the inner surface and the outer surface of the catheter main body; and [{'br': None, 'i': 'T', '0.050 mm≦1≦0.100 mm\u2003\u2003Expression (1)'}, {'br': None, 'i': T', '/T, '21≧0.25\u2003\u2003Expression (2)'}, {'br': None, 'i': D', '×D', '×W×N', 'T', '×T, 'sup': '2', '60,000≦(12)/(12)<1,000,000\u2003\u2003Expression(3),'}], 'the catheter satisfying Expressions (1), (2), and (3) below{'b': 1', '2', '1', '2, 'wherein the inner diameter of the catheter main body is D, the outer diameter of the catheter main body is D, the wall thickness of the catheter main body is T, a thickness of each reinforcement along a radial direction of the catheter main body is T, an effective width of each reinforcement along the circumferential direction of the catheter main body in a cross section orthogonal to an axial direction of the catheter main body is W, and a total number of the multiple reinforcements is N.'}2. The catheter according to claim 1 ,{'b': '2', 'wherein the outer diameter D of the catheter main body ranges from 2 mm to 3 mm, and the effective width W of each reinforcement ranges from 0.200 mm to less than 0. ...
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