STENT AND STENT DELIVERY SYSTEM
First Claim
1. A stent to be brought into contact with tissue in a living body through deformation at the time of indwelling the stent in the living body, the stent comprising:
- a plurality of annular bodies arrayed in an axial direction, each of the annular bodies being annularly-shaped from a linear constituent element, each of the annular bodies having a plurality of one-end-side bent sections which are bent sections at one axial end and a plurality of other-end-side bent sections which are bent sections at an opposite axial end;
axially adjacent ones of the annular bodies being linked by link sections; and
the stent including, as said link sections, at least three kinds of link sections selected from four kinds of link sections, the four kinds of link sections including;
a vertex-vertex bent link section which links a vertex of one of the other-end-side bent sections of the one-end-side annular body of the axially adjacent bodies with a vertex of one of the one-end-side bent sections of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part;
a central part-central part bent link section which links a central part of a linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the one-end-side annular body of the axially adjacent annular bodies with a central part of a linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part;
a central part-vertex bent link section which links the central part of the linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the one-end-side annular body of the axially adjacent annular bodies with the vertex of one of the one-end-side bent sections of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part; and
a vertex-central part bent link section which links the vertex of one of the other-end-side bent sections of the one-end-side annular body of the axially adjacent annular bodies with a central part of a linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part, the at least three kinds of the link sections including at least the vertex-vertex bent link section and the central part-central part bent link section, and the axially adjacent annular bodies being linked by at least two different kinds of the four link sections.
1 Assignment
0 Petitions
Accused Products
Abstract
A stent includes a plurality of annular bodies arrayed in an axial direction, each having a plurality of one-end-side bent sections and other-end-side bent sections, and adjacent ones of the annular bodies being linked by link sections. The stent includes at least three kinds of link sections selected from four kinds of link sections including: a vertex-vertex bent link section; a central part-central part bent link section; a central part-vertex bent link section; and a vertex-central part bent link section, the at least three kinds of the link sections including at least the vertex-vertex bent link section and the central part-central part bent link section, and the adjacent annular bodies being linked by at least two different kinds of the link sections
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Citations
20 Claims
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1. A stent to be brought into contact with tissue in a living body through deformation at the time of indwelling the stent in the living body, the stent comprising:
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a plurality of annular bodies arrayed in an axial direction, each of the annular bodies being annularly-shaped from a linear constituent element, each of the annular bodies having a plurality of one-end-side bent sections which are bent sections at one axial end and a plurality of other-end-side bent sections which are bent sections at an opposite axial end; axially adjacent ones of the annular bodies being linked by link sections; and the stent including, as said link sections, at least three kinds of link sections selected from four kinds of link sections, the four kinds of link sections including;
a vertex-vertex bent link section which links a vertex of one of the other-end-side bent sections of the one-end-side annular body of the axially adjacent bodies with a vertex of one of the one-end-side bent sections of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part;
a central part-central part bent link section which links a central part of a linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the one-end-side annular body of the axially adjacent annular bodies with a central part of a linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part;
a central part-vertex bent link section which links the central part of the linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the one-end-side annular body of the axially adjacent annular bodies with the vertex of one of the one-end-side bent sections of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part; and
a vertex-central part bent link section which links the vertex of one of the other-end-side bent sections of the one-end-side annular body of the axially adjacent annular bodies with a central part of a linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part, the at least three kinds of the link sections including at least the vertex-vertex bent link section and the central part-central part bent link section, and the axially adjacent annular bodies being linked by at least two different kinds of the four link sections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A stent to be brought into contact with tissue in a living body through deformation at the time of indwelling the stent in the living body, the stent comprising:
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at least four axially arranged and axially adjacent annular bodies, each of the at least four axially adjacent annular bodies being a wavy-shaped continuous linear member possessing;
one-end-side bent sections, which are each a section of the linear member bent at a vertex on one axial end of the wavy-shaped linear member; and
other-end-side bent sections which are each a section of the linear member bent at a vertex on an opposite axial end of the wavy-shaped linear member;the at least four axially adjacent annular bodies being connected to one another by link sections; the stent including as said link sections at least three different kinds of link sections selected from four different kinds of link sections, the four kinds of link sections including;
a vertex-vertex bent link section which connects the vertex of one of the other-end-side bent sections of the one-end-side annular body of the axially adjacent annular bodies with the vertex of one of the one-end-side bent sections of the other-end-side annular bodies of the axially adjacent annular body and which has at least one one-end-side bent part and at least one other-end-side bent part;
a central part-central part bent link section which connects a central part of a linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the one-end-side annular body of the axially adjacent annular bodies with a central part of a linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part;
a central part-vertex bent link section which connects the central part of the linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the one-end-side annular body of the axially adjacent annular bodies with the vertex of one of the one-end-side bent sections of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part; and
a vertex-central part bent link section which connects the vertex of the other-end-side bent section of the one-end-side annular body of the axially adjacent annular bodies with a central part of a linear portion interconnecting the one-end-side bent section and the other-end-side bent section of the other-end-side annular body of the axially adjacent annular bodies and which has at least one one-end-side bent part and at least one other-end-side bent part;the at least three kinds of the link sections including at least the vertex-vertex bent link section and the central part-central part bent link section, and the axially adjacent annular bodies being linked by at least two different kinds of the four link sections. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification