STENT FOR CONNECTING ADJACENT TISSUES AND MANUFACTURING METHOD THEREOF
First Claim
1. A method of manufacturing a connection stent, the method being configured to form cells through intersection of at least one wire while moving the wires from a starting point, as which any one reference location point is set, upward and downward so that the wire passes over protruding pins located in diagonal directions by using a jig in which detachable protruding pins are installed at all respective location points at which circumference division lines and length division lines, formed by equally dividing a circumference (VV) and length (L) of a cylinder having a diameter (R) identical to that of the body of the connection stent to be manufactured, intersect each other, the method comprising:
- step A of forming a part of a first body by bending and moving a first wire from a first starting point at one end of the jig to a first point at a remaining end of the jig in a zigzag form;
step B of forming a lower first head by repeating a pattern of bending the first wire in a zigzag form from the first point to a first change point at the remaining end of the jig along a circumferential surface of a lower head formation member which is fitted around a one end-side circumferential surface of the jig to protrude and in which detachable protruding pins are installed at all location points corresponding the circumference division lines on a head length division line set along one side circumference;
step C forming a part of the first body by bending and moving the first wire from the first change point to a second point at the one end of the jig in a zigzag form; and
step D of forming an upper first head by repeating a pattern of bending the first wire in a zigzag form from the second point to the first staring point along a circumferential surface of an upper head formation member which is fitted around an remaining end-side circumferential surface of the jig to protrude and be opposite to the lower head formation member and in which detachable protruding pins are installed at all location points corresponding the circumference division lines on a head length division line set along one side circumference.
1 Assignment
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Accused Products
Abstract
The present invention relates to a connection stent and a method of manufacturing the stent. The connection stent includes: a body configured to form a plurality of cells through the intersection of wires, and provided in a hollow cylindrical shape; an upper head formed to extend from one end of the body to have a diameter larger than that of the body; and a lower head formed to extend from a remaining end of the body to have a diameter larger than that of the body. The upper head and the lower head are respectively placed to come into contact with insides of heterogeneous tissues. Accordingly, according to the present invention, there can be manufactured a stent which can connect heterogeneous tissues and form a bypass and which can provide sufficient expansion force and minimum axial force for the maintenance of the bypass formed as described above.
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Citations
13 Claims
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1. A method of manufacturing a connection stent, the method being configured to form cells through intersection of at least one wire while moving the wires from a starting point, as which any one reference location point is set, upward and downward so that the wire passes over protruding pins located in diagonal directions by using a jig in which detachable protruding pins are installed at all respective location points at which circumference division lines and length division lines, formed by equally dividing a circumference (VV) and length (L) of a cylinder having a diameter (R) identical to that of the body of the connection stent to be manufactured, intersect each other, the method comprising:
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step A of forming a part of a first body by bending and moving a first wire from a first starting point at one end of the jig to a first point at a remaining end of the jig in a zigzag form; step B of forming a lower first head by repeating a pattern of bending the first wire in a zigzag form from the first point to a first change point at the remaining end of the jig along a circumferential surface of a lower head formation member which is fitted around a one end-side circumferential surface of the jig to protrude and in which detachable protruding pins are installed at all location points corresponding the circumference division lines on a head length division line set along one side circumference; step C forming a part of the first body by bending and moving the first wire from the first change point to a second point at the one end of the jig in a zigzag form; and step D of forming an upper first head by repeating a pattern of bending the first wire in a zigzag form from the second point to the first staring point along a circumferential surface of an upper head formation member which is fitted around an remaining end-side circumferential surface of the jig to protrude and be opposite to the lower head formation member and in which detachable protruding pins are installed at all location points corresponding the circumference division lines on a head length division line set along one side circumference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification