Patent ID: 8518102
Filing Date: 2013-08-27
Classification: A61F,A61L

Abstract:
1. A stent for placement in living body comprising: a plurality of sinusoidal first wave-shaped struts which are all commonly configured and a plurality of sinusoidal second wave-shaped struts which are all commonly configured, the first wave-shaped struts and the second wave-shaped struts together forming a tubular member, the first wave-shaped struts circumferentially alternating with the second wave-shaped struts so that one of the second wave-shaped struts is positioned between each circumferentially adjacent pair of first wave-shaped struts and so that one of the first wave-shaped struts is positioned between each circumferentially adjacent pair of second wave-shaped struts; each of the first wave-shaped struts extending in an axial direction of the tubular member from one end of the tubular member to an opposite end of the tubular member, each of the first wave-shaped struts having a first end positioned at the one end of the tubular member and a second end positioned at the opposite end of the tubular member, each of the first wave-shaped struts comprising a plurality of axially spaced apart first curved portions which are convexly curved towards one circumferential side of the first wave-shaped strut and a plurality of axially spaced apart second curved portions which are convexly curved towards an opposite circumferential side of the first wave-shaped struts; each of the second wave-shaped struts extending in the axial direction of the tubular member from the one end of the tubular member to the opposite end of the tubular member, each of the second wave-shaped struts having a first end positioned at the one end of the tubular member and a second end positioned at the opposite end of the tubular member, each of the second wave-shaped struts comprising a plurality of axially spaced apart first curved portions which are convexly curved towards one circumferential side of the second wave-shaped strut and a plurality of axially spaced apart second curved portions which are convexly curved towards an opposite circumferential side of the second wave-shaped strut; the first and second curved portions of the first wave-shaped strut each possessing an apex, and the first and second curved portions of the second wave-shaped strut each possessing an apex; each of the first wave-shaped struts being connected to each of the circumferentially adjacent second wave-shaped struts by at least one connecting strut; the first end of each respective first wave-shaped strut being connected to the first end of the second wave-shaped strut which is on the one circumferential side of the respective first wave-shaped strut, and the second end of each respective first wave-shaped strut being connected to the second end of the second wave-shaped strut which is on the opposite circumferential side of the respective first wave-shaped strut; and the apex of each first curved portion of the first wave-shaped struts being axially offset relative to an axially closest apex of the first curved portion of the circumferentially adjacent second wave-shaped strut.