KR20200025130A - Sheath for re-packaging stent and method for re-packaging stent using thereof - Google Patents

Abstract

A sheath for repackaging a stent comprises: an extension unit having a space in which the stent is packaged, and extending in a longitudinal direction; and an enlarged unit having a shape whose diameter is enlarged from one end of the extension unit, and tightly attached to one end of a catheter to repackage the stent into the extension unit. Accordingly, even if the stent and a device capable of loading the stent (for example, a catheter) are incorrectly selected or changed, the sheath can be reused, thereby saving costs.

Description

Sheath for repackaging stent and stent repackaging method using the same {SHEATH FOR RE-PACKAGING STENT AND METHOD FOR RE-PACKAGING STENT USING THEREOF}

The present invention relates to a sheath for repackaging a stent and a stent repackaging method using the same, and more particularly, a stent that can be easily repackaged in repacking a stent positioned in the catheter into the sheath. The present invention relates to a sheath for repackaging and a stent repackaging method using the same.

The lumen, through which blood, food, and body fluids move, can develop stenosis due to arteriosclerosis, blood clots, benign and malignant tumors, postoperative sequelae or lesions.

In this case, a procedure using a stent that restores the patency of the stenosis has been performed since the 1980s. artery), other blood vessels including veins, or other body lumens such as ureters, urethra, bronchus, esophagus, and other vessels.

The stent existing in the sheath can be pushed into the catheter, the catheter can be pushed up to the lesion of the body, and the stent can be inserted into the body. There are many variables in the process of inserting the stent into the catheter. have.

For example, a wrong type of stent (such as a closed cell or an open cell), a location of the catheter, or a change in treatment policy may occur.

In this case, the stent inserted into the catheter needs to be pulled back and repackaged into the sheath. Even if the stent does not fall out of the catheter, it is not easy to pull out the stent inserted into the catheter.

US 2007/0021648 A1 US 9149376 B2 Korea Patent Registration No. 10-1696811

One aspect of the present invention is a sheath for repackaging the stent and the stent repackaging method using the same, without wasting the stent and the sheath in the technique of reinserting the stent into the sheath, To provide.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Sheath for repackaging the stent according to an embodiment of the present invention is formed in the space in which the stent is packaged, the extension extending in the longitudinal direction; And an extension part formed in a shape in which the diameter extends from one end of the extension part and in close contact with one end of the catheter to repackage the stent into the extension part.

The expansion unit may include: a first expansion unit having a second end formed in a shape in which a diameter thereof is extended from one end of the extension unit; And a second extension part extending from one end of the first extension part.

The second extension part may be formed in a direction parallel to the extension part from one end of the first extension part.

)로 직경이 확장될 수 있다.The second expansion portion has a constant angle (one end) from one end of the first expansion portion.

Diameter can be expanded to

)는 제1 확장부가 확장되는 각도(

)보다 작은 값을 가질 수 있다.The sheath for repackaging the stent may include an angle at which the second extension is extended.

) Is the angle at which the first extension extends (

It can have a value less than).

One end of the extension may be formed in a curved shape.

The expansion part may be formed to be curved in a shape in which the angle of expansion of the diameter from one end of the extension part increases at a constant rate.

The stent may be repackaged into the extension along a guide wire that forms a movement path to repackage the stent.

The expansion part may include a connection part formed to protrude along an outer circumferential surface of one end of the expansion part.

In the stent repackaging method according to an embodiment of the present invention, an extension formed in a shape in which a diameter extends from one end of the extension part of the sheath extending in the longitudinal direction is in close contact with one end of the catheter, and a stent existing inside the catheter is seated. A push wire connected to the guide wire is moved in a first direction inserted into the sheath, and the stent is repackaged into an extension of the sheath according to the direction of movement of the guide wire, and a push connected to the guide wire The stent is separated from the guide wire by moving a wire in a second direction opposite to the first direction.

According to the sheath for repackaging the stent proposed in the present invention and the stent repackaging method using the same, one end of the sheath is formed to a diameter that can accommodate the catheter, so that the stent loaded in the catheter can be easily transferred to the sheath. Can be repackaged

In addition, even when the stent and the catheter must be incorrectly selected or changed, it is possible to reuse the stent and the sheath is inserted into the stent, it can be expected to reduce the cost.

1A and 1B illustrate a process of repackaging a stent in a sheath using a sheath for repackaging a stent according to a first embodiment of the present invention.
2 to 7 are views showing a sheath for repackaging the stent according to the first to sixth embodiments of the present invention.
8 is a flowchart illustrating a stent repackaging method using a sheath for repackaging a stent according to embodiments of the present invention.

DETAILED DESCRIPTION OF THE INVENTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

1A and 1B illustrate a process of repackaging a stent in a sheath using a sheath for repackaging the stent according to the first embodiment of the present invention.

The sheath 100 for repackaging the stent according to the first embodiment of the present invention (hereinafter, the sheath according to the first embodiment) has a diameter extending from one end of the extension part 110 and the extension part 110 extending in the longitudinal direction. It may include an expansion unit 130 formed in an expanded shape.

The extension part 110 of the sheath 100 according to the first embodiment may have a space in which the stent 500 may be packaged, and the guide wire 700 and the push wire (inside the extension part 110) may be formed. 900 may be inserted.

The extension 130 of the sheath 100 according to the first embodiment is loaded with the stent 500 to repackage the stent 500 into the extension 110 of the sheath 100 according to the first embodiment. It may be in close contact with one end of the device (300, hereinafter catheter), such as a catheter.

After the extension 130 of the sheath 100 according to the first embodiment is in close contact with one end of the catheter 300, the push wire 900 connected to the guide wire 700 pushes the stent 500 to the first. It can be moved to the extension 110 of the sheath 100 according to the embodiment.

Here, the guide wire 700 may be a device that was used to form the movement path of the stent 500 when loading the stent 500 into the catheter 300.

Here, the push wire 900 is moved in the first direction inserted into the sheath 100 according to the first embodiment in close contact with one end of the catheter 300, the stent 500 is loaded to move the stent 500 Can be repackaged

The stent 500 loaded in the catheter 300 is passed through the extension 130 of the sheath 100 according to the first embodiment along the guide wire 700 connected to the push wire 900 according to the first embodiment. It can move inside the extension 110 of the sheath 100.

When the stent 500 moves into the extension 110 of the sheath 100 according to the first embodiment, the push wire 900 connected to the guide wire 700 moves in the second direction opposite to the first direction. By moving, the stent 500 may be seated inside the extension 110 of the sheath 100 according to the first embodiment.

Here, the stent 500 may be an open cell stent. Alternatively, the stent 500 may be a closed cell stent.

In the case of a closed cell stent, the package may be repackaged to the sheath 100 by moving to the position where the stent 500 needs to be installed and pulling the push wire 900 holding the stent 500.

On the other hand, in the case of an open cell stent, when the push wire 900 holding the stent 500 is pulled, the stent 500 may be broken, and thus, it is not possible to structurally repackage the sheath 100.

From this, the stent insertion apparatus 10 for packaging the stent of the present invention can easily repackage an open cell stent, and also can easily repack a closed cell stent. have.

Hereinafter, a sheath for repackaging the stent according to the first to sixth embodiments of the present invention will be described in detail with reference to FIGS. 2 to 7.

2 is a view showing a sheath for repackaging a stent according to a first embodiment of the present invention.

2 (a) is a view showing a sheath for repackaging the stent according to the first embodiment of the present invention, Figure 2 (b) is a view for repackaging the stent according to the first embodiment of the present invention It is a diagram showing that the stent is repackaged in the sheath.

The sheath 10 for repackaging the stent according to the first embodiment of the present invention (hereinafter, the sheath according to the first embodiment) has a diameter extending from one end of the extension 110 and the extension 110 extending in the longitudinal direction. It may include an expansion unit 130 formed in an expanded shape.

The extension 110 of the sheath 100 according to the first embodiment may have a space in which the stent 500 is packaged. The stent 500, the guide wire 700, and the push wire 900 may be inserted into the extension 110.

The expansion part 130 of the sheath 100 according to the first embodiment may be formed in a shape in which the diameter extends from one end of the extension part 110. For example, the extension 130 may be formed in a cone shape or a trumpet shape.

The extension 130 of the sheath 100 according to the first embodiment is connected to one end of the catheter 300 to repackage the stent 500 into the extension 110 of the sheath 100 according to the first embodiment. It may be in close contact.

Here, the catheter 300 is a device that can be loaded into the stent 500 may mean a medical device that is inserted into the human body when the surgery is made by using a medical material.

The diameter of the extension 110 of the sheath 100 according to the first embodiment may be smaller than the diameter of the catheter 300, but because the stent 500, the guide wire 700 and the push wire 900 is inserted It can be formed to a sufficient diameter.

The stent 500 may move along the guide wire 700, and the guide wire 700 may be connected to the push wire 900. As a result, the stent 500 may move along the moving direction of the push wire 900. have.

Here, the push wire 900 repackages the stent 500 by moving in the first direction inserted into the sheath 100 according to the first embodiment in close contact with the one end of the catheter 300 from the catheter 300 can do.

Here, the stent 500 may be an open cell stent. Alternatively, the stent 500 may be a closed cell stent.

The sheath 100 for repackaging the stent according to the first embodiment of the present invention can easily repackage an open cell stent, and also a closed cell stent more easily. Can be packaged

3 is a view showing a sheath for repackaging a stent according to a second embodiment of the present invention.

Figure 3 (a) is a view showing a sheath for repackaging the stent according to the second embodiment of the present invention, Figure 3 (b) is a view for repackaging the stent according to the second embodiment of the present invention It is a diagram showing that the stent is repackaged in the sheath.

Referring to FIG. 3, the sheath 101 for repackaging the stent according to the second embodiment of the present invention (hereinafter, the sheath according to the second embodiment) is a sheath according to the first embodiment of the present invention shown in FIG. 2. Since only the shape of the extension 110 is different from that of 100 and all other configurations are the same, only the extension 110 will be described below.

One end of the sheath 101 extension 110 according to the second embodiment may be formed in a curved shape as shown in FIG. 3. That is, one end of the extension 110 of the sheath 101 for repackaging the stent according to the second embodiment is formed in a round shape so that the stent 500 can be smoothly packaged into the extension 110. Can be.

As described above, one end of the extension 110 is curved, so that the sheath 101 according to the second embodiment may be more smoothly repackaged from the stent 500 to the sheath 100 according to the first embodiment. Can be packaged

4 is a view showing a sheath for repackaging a stent according to a third embodiment of the present invention.

4A is a view showing a sheath for repackaging a stent according to a third embodiment of the present invention, and FIG. 4B is a view for repacking a stent according to a third embodiment of the present invention. It is a diagram showing that the stent is repackaged in the sheath.

The sheath 103 according to the third embodiment of the present invention includes an extension part 110 extending in the longitudinal direction, a first extension part 130 and a first shape formed in a shape in which a diameter is extended from one end of the extension part 110. It may include a second expansion unit 150 extending from one end of the expansion unit 130.

In the extension part 110 of the sheath 103 according to the third embodiment, a space in which the stent 500 is packaged may be formed, and the stent 500, the guide wire 700, and the push wire 900 may be formed. Can be inserted.

The first extension 130 of the sheath 103 according to the third embodiment may be formed in a shape in which a diameter extends from one end of the extension 110 of the sheath 103 according to the third embodiment.

In order to repackage the stent 500 with the extension 110 of the sheath 103 according to the third embodiment of the present invention, the first extension 130 of the sheath 103 according to the third embodiment is a stent ( 500 may be in close contact with one end of the catheter 300.

Although the second extension part 150 of the sheath 103 according to the third embodiment may extend from one end of the first extension part 130, the second extension part 150 may be formed in a shape such that the diameter of the first extension part 130 is widened. It may not be formed in a direction parallel to the extension 110.

Here, when the first extension 130 of the sheath 103 according to the third embodiment is in close contact with one end of the catheter 300, the second extension 150 may be provided with the sheath 500 according to the third embodiment. It can be formed to form a travel path that can be repackaged to 103.

That is, the second extension part 150 can move in parallel even if the catheter 300 is in close contact with the first extension part 130 without being parallel to the extension part 110 of the sheath 103 according to the third embodiment. It can serve as a guide.

Here, the catheter 300 is a device that can be loaded into the stent 500 may mean a medical device that is inserted into the human body when the surgery is made by using a medical material.

The stent 500 may move along the guide wire 700. The guide wire 700 is connected to the push wire 900. As a result, the stent 500 may move according to the moving direction of the push wire 900. .

Here, the push wire 900 repackages the stent 500 by moving in the first direction inserted into the sheath 100 according to the first embodiment in close contact with the one end of the catheter 300 from the catheter 300 can do.

5 shows a sheath for repackaging a stent in accordance with a fourth embodiment of the present invention.

FIG. 5A is a view showing a sheath for repackaging a stent according to a fourth embodiment of the present invention, and FIG. 5B is a view for repacking a stent according to a fourth embodiment of the present invention. It is a diagram showing that the stent is repackaged in the sheath.

Referring to FIG. 5, the sheath 105 for repackaging the stent according to the fourth embodiment of the present invention (the sheath according to the fourth embodiment hereinafter) is a sheath according to the third embodiment of the present invention shown in FIG. 4. Since only the shape of the second extension part 150 is different from that of 103, and all other configurations are the same, only the second extension part 150 will be described below.

)로 직경이 확장되는 형상으로 형성될 수 있다.As shown in FIG. 5, the second extension part 150 has a constant angle from one end of the first extension part 130 to one end of the first extension part 130.

It may be formed into a shape in which the diameter is expanded to).

)는 제2 확장부(150)가 제1 확장부(130)의 일단으로부터 확장된 각도(

)보다 큰 값을 가질 수 있다.Here, the angle (1) in which the first extension 130 shown in FIG. 4 is extended from one end of the extension 110

) Is an angle at which the second extension part 150 extends from one end of the first extension part 130.

It can have a value greater than).

6 is a view showing a sheath for repackaging a stent according to a fifth embodiment of the present invention.

FIG. 6A is a view illustrating a sheath for repackaging a stent according to a fifth embodiment of the present invention, and FIG. 6B is a view for repacking a stent according to a fifth embodiment of the present invention. It is a diagram showing that the stent is repackaged in the sheath.

According to a fifth embodiment of the present invention, the sheath 107 for repackaging the stent according to the fifth embodiment (hereinafter, the sheath according to the fifth embodiment) may include an extension 110 and an extension 130. Can be.

In the extension part 110 of the sheath 107 according to the fifth embodiment, a space in which the stent 500 is packaged may be formed. The stent 500, the guide wire 700, and the push wire 900 may be inserted into the extension 110.

Here, one end of the extension 110 connected to the extension 130 may be formed in a curved shape. That is, the stent 500 may be smoothly packaged into the extension 110, such as one end of the extension 110 of the sheath 101 for repackaging the stent according to the second embodiment illustrated in FIG. 3. It may be formed in a round shape so that.

That is, the extension 130 of the sheath 107 according to the fifth embodiment is the extension 130 without the catheter 300 being parallel to the extension 110 of the sheath 107 according to the fifth embodiment. Even if it is in close contact with, it can serve as a guide to move in parallel.

The extension 130 of the sheath 107 according to the fifth embodiment may be formed to be curved in a shape in which the angle of expansion of the diameter from one end of the extension 110 increases at a constant rate.

That is, the extension 130 of the sheath 107 according to the fifth embodiment extends from one end of the extension 110 to an angle at which a predetermined angle (°) is increased at regular intervals from one end of the extension 110. The farther it can be formed in a trumpet shape that is wider in diameter.

For example, a diameter may be extended from one end of the extension 110 to 3 mm of the extension 130 at an angle of 5 °, and a diameter of 3 mm to 6 mm of the extension 130 is extended at an angle of 10 °. Can be.

In order to repackage the stent 500 with the extension 110 of the sheath 107 according to the fifth embodiment of the present invention, the extension 130 of the sheath 107 according to the fifth embodiment is the stent 500. May be in close contact with one end of the catheter 300.

Here, the catheter 300 is a device that can be loaded into the stent 500 may mean a medical device that is inserted into the human body when the surgery is made by using a medical material.

Here, the diameter of the extension 110 of the sheath 107 according to the fifth embodiment may be smaller than the diameter of the catheter 300 of the stent 500.

The stent 500 may move along the guide wire 700, and the guide wire 700 may be connected to the push wire 900 to push the stent 500 by moving the push wire 900. .

From this, the stent 500 can be repackaged into the extension 110 of the sheath 107 according to the fifth embodiment by the push wire 900 connected with the guide wire 700 on which the stent 500 is seated. have.

Here, the push wire 900 moves in the first direction in which the stent 500 is inserted into the sheath 107 according to the fifth embodiment in which the stent 500 is in close contact with one end of the catheter 300. 500 may be repackaged.

7 is a view showing a sheath for repackaging a stent according to a sixth embodiment of the present invention.

According to a sixth embodiment of the present invention, the sheath 109 for repackaging the stent according to the sixth embodiment (hereinafter, the sheath according to the sixth embodiment) includes an extension part 110, an extension part 130, and a connection part ( 150).

In the extension part 110 of the sheath 109 according to the sixth embodiment, a space in which the stent 500 is packaged may be formed, so that the stent 500 and the guide wire 700 may be formed in the extension part 110. And a push wire 900 may be inserted.

The extension 130 of the sheath 109 according to the sixth embodiment may be formed in a shape in which a diameter extends from one end of the extension part 110, and a connection part 150 is formed at one end of the extension part 130. It may be.

The connection part 150 may firmly fix one end of the extension part 130, and when a connector device having a diameter equal to the diameter of one end of the extension part 130 attempts to engage with the extension part 130, the connector part 150 may be easily fixed. Can be combined.

The connection part 150 may be formed to protrude from the outer circumferential surface of one end of the extension part 130, and may be manufactured with the same material and the same thickness as the extension part 110 and the extension part 130, but the extension part ( 110 and the expansion unit 130 may be made of a different material and different thickness.

8 is a flowchart illustrating a stent repackaging method using a sheath for repackaging a stent according to embodiments of the present invention.

Referring to FIG. 8, a stent repackaging method using a sheath for repackaging a stent according to embodiments of the present invention will be described.

The following stent repackaging method may use a sheath according to the first to sixth embodiments of FIGS. 2 to 7. Hereinafter, for the convenience of description, the sheath used in the stent repackaging method is defined as the sheath 100 according to the first embodiment. However, as described above, the shape of the sheath used for stent repackaging is not limited to the sheath 100 according to the first embodiment.

The sheath 100 according to the first embodiment of the present invention may be used when the stent 500 needs to be repackaged from the catheter 300 loaded with the stent 500.

Here, the catheter 300 is a device that can be loaded into the stent 500 may mean a medical device that is inserted into the human body when the surgery is made by using a medical material.

The extension 130 of the sheath 100 according to the first embodiment of the present invention is in close contact with one end of the catheter 300 to repackage the stent 500 into the sheath 100 according to the first embodiment. It may be (S1100).

When the extension 130 of the sheath 100 according to the first embodiment is in close contact with one end of the catheter 300, the push connected to the guide wire 700 on which the stent 500 existing inside the catheter 300 is seated. The wire 900 may push the stent 500 (S1300).

Here, a path along which the push wire 900 connected to the guide wire 700 moves may move in a first direction inserted into the sheath 100 according to the first embodiment.

The stent 500 may move along the guide wire 700 on which the stent 500 is seated. The guide wire 700 is connected to the push wire 900. As a result, the stent 500 includes the push wire 900. It can move along the direction of movement.

The stent 500 reaches a target point inside the extension 110 of the sheath 100 according to the first embodiment and repackages inside the extension 110 of the sheath 100 according to the first embodiment. It may be (S1500).

The push wire 900 may move in a second direction that is opposite to the first direction in which the stent 500 moves to repackage (S1700), and the guide wire moves in the second direction as the push wire 900 moves in the second direction. 700 and the stent 500 can be separated (S1900).

Here, the stent 500 may be an open cell stent. Alternatively, the stent 500 may be a closed cell stent.

The sheath 100 according to the proposed embodiments of the present invention can easily repackage an open cell stent, and can also easily repackage a closed cell stent.

As mentioned above, the sheath for repackaging the stent of the present invention includes an extension that can embrace the end of a device (e.g., a catheter) capable of loading the stent to return the stent into the sheath. It can be usefully used in packaging.

From this, the stent and the device capable of loading the stent (for example, a catheter) can be reused even if it is necessary to select or change incorrectly, it is possible to expect the effect of saving costs.

Although described above with reference to the embodiments, those skilled in the art will understand that various modifications and changes can be made within the scope of the invention without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

100, 101, 103, 105, 107: sheath
110: extension
130: extension
150: connection
300: catheter
500: stent
700: guide wire
900: push wire

Claims (10)

A space in which the stent is packaged and formed to extend in the longitudinal direction; And
A sheath for repackaging the stent, comprising: an extension formed in a shape extending in diameter from one end of the extension, the extension part being in close contact with one end of the catheter to repackage the stent into the extension. The method of claim 1,
The expansion unit,
A first expansion part having the other end formed in a shape in which the diameter extends from one end of the extension part; And
And a second expansion portion extending from one end of the first expansion portion. The method of claim 2,
The second expansion portion,
A sheath for repackaging the stent formed from one end of the first extension in a direction parallel to the extension. The method of claim 2,
The second expansion portion,
Constant angle from one end of the first extension (

A sheath for repackaging the stent, the diameter of which expands to The method of claim 4, wherein
Angle at which the second extension is expanded (

) Is the angle at which the first extension extends (

Sheath for repackaging the stent with a value less than). The method of claim 1,
One end of the extension,
A sheath for repackaging the stent, formed in a curved shape. The method of claim 1,
The expansion unit,
The sheath for repackaging the stent is formed to be curved in a shape in which the angle of expansion of the diameter from one end of the extension increases at a constant rate. The method of claim 1,
The stent,
A sheath for repackaging the stent, wherein the stent is repackaged into the extension along a guide wire defining a movement path to repackage the stent. The method of claim 1,
The expansion unit,
Sheath for repackaging the stent, including; connecting portion formed in a shape protruding along the outer peripheral surface of the one end of the expansion portion. An extended portion formed in a shape in which the diameter extends from one end of the extension of the sheath extending in the longitudinal direction is in close contact with one end of the catheter,
The push wire connected to the guide wire on which the stent existing inside the catheter is seated is moved in the first direction to be inserted into the sheath,
The stent is repackaged into an extension of the sheath according to the direction of movement of the guide wire,
And the stent is separated from the guide wire by moving the push wire connected to the guide wire in a second direction opposite to the first direction.

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