KR101586615B1

KR101586615B1 - Branched stent

Info

Publication number: KR101586615B1
Application number: KR1020150134647A
Authority: KR
Inventors: 신경민
Original assignee: 신경민
Priority date: 2015-09-23
Filing date: 2015-09-23
Publication date: 2016-01-19

Abstract

The present invention relates to a branched stent and an insertion device of the stent. The stent comprises: a main stent with a cylindrical mesh shape; a minor stent coupled to vary the length at a constant angle on a circumferential surface of the main stent; and a fixing wire coupled by making a knot on the other portion and being connected to the main stent, so as to maintain a compressed state in the longitudinal direction of the minor stent and to be untied by pulling one end unit. The stent insertion device is equipped with a processed ring on the outer surface for tying one end unit of the fixing wire.

Description

Branched stent

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stent, and more particularly, to a bifurcated stent in which a plurality of stents are integrally manufactured in accordance with lumen branched into two or more branches.

In general, stents are inserted into stents such as blood vessels, esophagus, bronchi, and urethra in order to expand the stenosis artificially when stenosis occurs due to deposits or the like. Method is used. Recently, various methods have been attempted for installing a stent in the Y-shaped lumen in the human body.

Conventionally, as an example for providing a stent to the Y-shaped lumen, a first stent having a hole is provided in a first lumen, a second stent is inserted into a first stent, A method is proposed.

However, it is necessary to insert the stent into each Y-shaped lumen, and there is a problem in that the number of stents, that is, the number of branches must be increased.

Korean Patent No. 10-1123921 (Announcement of March 23, 2012) Korean Patent No. 10-1073035 (issued October 12, 2011) Korean Patent Laid-Open No. 10-2015-0013512 (published on May 1, 2015)

It is an object of the present invention, which is devised to overcome the above-mentioned problems, to provide a stent with a variable stent, wherein at least one lumen is branched from one lumen by attaching one or more length- Thereby providing a bifurcated stent for reducing the number of procedures.

According to an aspect of the present invention, there is provided a bifurcated stent including a cylindrical mesh-type juice tent, and a bus tent coupled to the circumferential surface of the juice tent so as to be variable in length at an angle .

The booth tent is characterized in that the booth tent is fastened along the circumference of the hole machined on the circumferential surface of the juice tent.

The booth tent further includes a fixed wire connected to the juice tent by being knotted to the other side so that the booth tent can be pulled and pulled so as to maintain the compressed state in the longitudinal direction.

Meanwhile, the stent insertion device according to the present invention is characterized in that the insertion device for inserting a stent includes a ring machined on the outer surface to bind one end portion for pulling out from the fixed wire.

As described above, according to the present invention, by attaching at least one bust tent to one juice tent, even if a plurality of lumens are branched from one lumen, the stent can be inserted into each lumen with only one procedure .

Further, the booth tent is bundled with a fixed wire and inserted in a compressed state to a minimum length, and the knot of the fixed wire is released by the pulling-out operation of the inserting device to unfold the booth tent so that the bus tent can be easily used for narrow- There is an effect that a procedure can be performed simply.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, Should not be interpreted.
1 is a side view of a branched stent according to a preferred embodiment of the present invention.
FIG. 2 is a side view showing a state where the booth tent is compressed and bound by a fixed wire in FIG. 1; FIG.
FIG. 3 is a side view showing a state where one side of the wire shown in FIG. 2 is fixed to the inserting apparatus.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

1 is a side view of a branched stent according to a preferred embodiment of the present invention. FIG. 2 is a side view showing a state where the booth tent is compressed and bound by a fixed wire in FIG. 1; FIG. FIG. 3 is a side view showing a state where one side of the wire shown in FIG. 2 is fixed to the inserting apparatus.

1 and 2, a branched stent according to a preferred embodiment of the present invention includes a juice tent 100, a bus tent 110, and a fixed wire 120. Here, a typical stent is made into a cylindrical shape using at least one wire and has elasticity so that the diameter can be narrowed or widened. As a result, the elastic stent can be expanded and contracted not only in the width direction used in general but also in the radial direction.

The juice tent 100 is inserted into the main lumen and is made of a stainless steel, cobalt, titanium, platinum, or an alloy of at least two of these materials having rigidity and elasticity. The juice tent 100 has a hole at a position where the booth tent 110 is attached. That is, the booth tent 110 is coupled along the circumference of the hole. In addition, the juice tent 100 may be manufactured in a conventional manner without a hole, and the booth tent may be provided by coupling one end thereof to the circumferential surface.

The booth tent 110 is inserted into branch lumen branched from the main lumen, and the material and shape are the same as or similar to the juice tent 100. For example, the booth tent 110 may be manufactured in the same manner as the juice tent 100 and then coupled to the juice tent 100.

In addition, since the booth tent 110 is inserted into the lumen of the branch, the booth tent 110 is inclined at a certain angle from the root of the juice tent 100. At this time, when the hole is machined in the juice tent 100, it is coupled along the circumference of the hole, and in a case where there is no hole, it can be coupled to a predetermined position to be installed on the circumferential surface of the juice tent 100.

When the juice tent 100 is inserted into the main lumen of the booth tent 110, the fixing wire 120 is loosened to be inserted into the auxiliary lumen in a state where the length is reduced by the fixing wire 120, do. As the juice tent 100 is elongated in the longitudinal direction, the diameter of the booth tent 110 becomes narrower and contrary to the contraction thereof, and the expansion and contraction of the booth tent 110 can be performed. It is possible.

In addition, the booth tent 110 can be inclined according to the branching angle due to the elastic nature of the booth tent 110 according to the branch angle between the main lumen and the branch lumen. That is, since the booth tent 110 has a flexible elasticity, the booth tent 110 may be bent in the longitudinal direction or may be expanded to increase the diameter.

The fixed wire 120 is a member for compressing and holding the elastic booth tent 110 in the longitudinal direction. The fixed wire 120 is installed by connecting the juice tent 100 in a state where the bus tent 110 is compressed.

More specifically, as shown in FIG. 2, at least one portion of the booth tent 110 may be compressed in the longitudinal direction, and then the knot may be tied to the juice tent 100. At this time, the knot can be released by pulling one end of the fixed wire 120. One end of the fixing wire 120 is tightly fastened to the insertion device 200 for inserting the stent.

The stationary wire 120 is fixed to the inserting apparatus 200 before the booth tent 110 is inserted into the lumen, and the booth tent 110 is bundled to the other side.

3, the insertion device 200 according to the present invention includes a distal end portion to which the juice tent 100 is inserted in a conventional insertion device that is formed to be inserted after insertion of a stent into a distal end portion of a stent, And a ring 210 which can bind one end of the fixing wire 120 to the outer surface of the fixing wire 120. The fixing wire 120 is firmly tied to the ring 210 so as not to be loosened. Accordingly, the inserting device 200 is inserted into the lumen, the juice tent 100 is positioned, and then the fixed wire 120 is pulled out to release the knot so that the booth tent 110 is stretched in the longitudinal direction. Thereafter, the inserting apparatus 200 can fix the position of the bus tent 110 and extend the length of the bus tent 110 to the maximum, and then exit.

As described above, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims, rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalents of the claims are to be construed as being included within the scope of the present invention do.

100: Juice tent 110: Booth tent
120: Fixation wire 200: Stent insertion device
210: The ring

Claims

A cylindrical mesh type juice tent 100;
A booth tent 110 coupled to the circumferential surface of the juice tent 100 so as to be variable in length at an angle; And
And a fixed wire 120 connected to the juice tent 100 by forming a knot at the other side so that the bus tent 110 is maintained in a compressed state in the longitudinal direction and can be pulled out by pulling one end thereof Wherein the bifurcated stent is a bifurcated stent.

The method according to claim 1,
Wherein the booth tent (110) is fastened along a circumference of a hole formed in the circumferential surface of the juice tent (100).

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