KR101250448B1 - Embolus forming in-vivo indwelling-coil and the makigng methods for Embolus forming in-vivo indwelling coil - Google Patents
Embolus forming in-vivo indwelling-coil and the makigng methods for Embolus forming in-vivo indwelling coil Download PDFInfo
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- KR101250448B1 KR101250448B1 KR1020100135693A KR20100135693A KR101250448B1 KR 101250448 B1 KR101250448 B1 KR 101250448B1 KR 1020100135693 A KR1020100135693 A KR 1020100135693A KR 20100135693 A KR20100135693 A KR 20100135693A KR 101250448 B1 KR101250448 B1 KR 101250448B1
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- coil
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- primary coil
- shape
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12031—Type of occlusion complete occlusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/1214—Coils or wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurosurgery (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to an induction coil for embolic formation, and in the present invention, the embolic coil is inserted into the blood vessel while being twisted along the blood vessel, and is twisted in a spiral direction along the inside of the blood vessel as well as in a straight vessel. By inserting along the inside of the blood vessel to facilitate and effectively attract the embolization coil.
In order to achieve the above object, in the present invention, a plurality of unit spiral coils formed by a primary coil formed by winding a wire in a spiral shape are formed as a polygonal primary coil so as to have a polygonal shape having a plurality of corner portions. Heat to remember
By providing a polygonal secondary coil that is formed in a spiral form with the polygonal primary coil as in the prior art, it has become possible to provide the in-body induction coil for embolization of the present invention which has been heat-treated to store this spiral shape.
Description
The present invention relates to an embolic induction coil used for endovascular treatment of cerebral aneurysm, and more particularly, does not strongly press the vessel wall of cerebral aneurysm when it contacts the inner wall of the cerebral artery. The present invention relates to an induction coil for embolization and a method for manufacturing the same, which are capable of being attracted and filled with high density in the interior of the cerebral aneurysm.
Cerebral aneurysms are abnormal swelling of the cerebral artery, and the risk of rupture is higher than that of normal blood vessel walls, and when ruptured, severe cerebral hemorrhage, including bleeding, is caused.
In the treatment of cerebral aneurysms, a number of treatments for preventing rebleeding are performed by inserting separate embolic coils into an aneurysm by accessing an aneurysm through blood vessels along with an aneurysm clip through craniotomy.
The primary treatment target for cerebral aneurysms is to prevent rebleeding due to aneurysm rupture or re-rupture. The traditional treatment is cervical clip of an aneurysm by craniotomy.
Open the skull and look for blood vessels with an aneurysm and use metal clips to grab the neck of the aneurysm to prevent blood flow into the aneurysm.
With the development of a detachable embolic coil, a catheter that enters the blood vessel is inserted into the aneurysm. The catheter tip is inserted into the aneurysm, and a sufficient amount of the detachable embolic coil is inserted into the aneurysm. This makes it possible to cure rebleeding due to re-rupture of an aneurysm.
The advantage of such a separate embolic coil is that the coil can be removed from the coil pusher only when necessary, so that the aneurysm can be embolized without the blood flow disturbance of the mother artery by repeating the insertion and removal as necessary.
The embolic coil is introduced into the cerebral aneurysm via an appropriate catheter by an extruding means (inductor) detachably connected to the end thereof, and is separated from a predetermined portion and held in the body.
The body induction coil for embolization is used for endovascular treatment of cerebral aneurysm, which can be avoided craniotomy.
Such an induction body induction coil is separated according to its shape, and is generally classified into a spiral coil and a complex coil having a complicated shape.
In the case of the
This spiral coil is inserted into the cerebral aneurysm through a catheter and installed.
On the other hand, in the case of the
In this problem, a
As shown in the accompanying drawings, as shown in FIG. 2, the primary coil 1 is formed in a spiral shape and heat-treated so as to remember the spiral shape, and then heat-treated in a state having a complicated shape to make a complicated secondary shape having a complicated shape. It is completed by configuring the coil 5.
The
In this case, however, the movement cannot be predicted during the recovery through the cardette while being inserted into the internal aneurysm and restored to the original memorized shape, that is, the shape of the complex secondary coil 5, and as described above, Even though the secondary coil 5 is formed in a spiral shape, the secondary coil 5 is intricately configured, and thus is filled in a spiral shape, and thus, the force is not dispersed and the inner wall of the blood vessel is contacted with the same force.
That is, the conventional embolic coil as described above has a problem that it is difficult to reliably be attracted to a severely curved cerebral aneurysm due to the problem that the direction of action of the force applied to the embolic coil when acting in the body acts only in one direction.
In the present invention, the embolization coil is inserted into the vessel while twisted along the vessel, so that the vessel is not only straight, but also curved vessels are inserted in the spiral along the inside of the vessel and are easily inserted into the vessel. To attract the forming coil.
In order to achieve the above object, in the present invention, a plurality of unit spiral coils formed by a primary coil formed by winding a wire in a spiral shape are formed as a polygonal primary coil so as to have a polygonal shape having a plurality of corner portions. Heat to remember
By providing a polygonal secondary coil that is formed in a spiral form with the polygonal primary coil as in the prior art, it has become possible to provide the in-body induction coil for embolization of the present invention which has been heat-treated to store this spiral shape.
When inserting the embolic induction body for the embolization of the present invention into the blood vessel, it is inserted into the spiral while passing through the inside of the blood vessel, which is inserted into the blood vessel while being spirally twisted inside the blood vessel, Even in the blood vessel portion having the bent portion is inserted into the spiral while twisting along the curved portion has a function that can be inserted very effectively in the curved portion of the vessel.
This action is because the conventional induction coil for embolization of the present invention maintains a circular shape, and therefore is always inserted in the direction of action in one direction. It can solve the disadvantages.
1 is a reference diagram showing a conventional spiral coil.
2 is a reference diagram of a composite coil;
3 is a reference diagram of the present invention.
4 is a reference diagram showing the main portion of Figure 3 extracted.
5 and 7 illustrate another embodiment of the present invention.
8 is a manufacturing process diagram of the coil according to the present invention;
9 to 11 is another manufacturing process diagram of the coil according to the present invention.
Hereinafter, the present invention will be described in detail with reference to FIGS. 3 to 7.
As in the prior art, the primary coil 1 formed in a spiral shape with a
Polygonal primary coil 12 to have a polygonal shape having a plurality of unit
Provided is the embodied induction coil for embolization of the present invention which is heat treated to store the spiral shape by forming the polygonal
In this case, as described below, the
The shape of the polygonal primary coil 12 is preferably in the form of a triangular primary coil 15, but the rectangular
In this case, when the polygonal
When inserting the embolic induction body coil of the present invention into the blood vessel by the
That is, when the object is inserted by the screw formed on the surface of the screw, the screw is easily inserted into the object as the screw is twisted. Since the blood vessel is inserted into the spiral while bending along the curved portion, the function of being able to be inserted very effectively in the curved portion of the blood vessel.
This action is because the conventional induction coil for embolization of the present invention maintains a circular shape, and therefore is always inserted in the direction of action in one direction. It can solve the disadvantages.
Such a present invention can be manufactured by using the jig according to the present invention, which is illustrated by the accompanying drawings as follows.
As described above, as conventionally, the
Using such a polygonal primary coil 12, the polygonal
By this completion, the
As shown in the accompanying drawings, the
1: primary coil 2: secondary coil
3: spiral coil 11: unit spiral coil
12: polygon primary coil 13: polygon secondary coil
14: corner 15: triangle primary coil
16: square primary coil 17: pentagonal primary coil
18: hexagonal primary coil 19: surface helix
Claims (7)
Polygonal primary coil 12 to have a polygonal shape having a plurality of unit spiral coils 11 formed by the primary coil 1 formed by winding the wire 7 in a spiral shape with a plurality of corner portions 14. And a heat treatment to memorize the shape thereof.
The corner portion 14 is embodied induction coil for embolization, characterized in that the end is configured to be curved.
The shape of the polygonal primary coil 12 is any one of a triangular primary coil 15, a rectangular primary coil 16, a pentagonal primary coil 17 or a hexagonal primary coil 18 Induction coil for embolization.
Embolization, characterized in that the plurality of edge portions 14 of the polygonal primary coil 12 is formed of a plurality of surface spirals 19 on the surface of the entire polygonal secondary coil 13, respectively. Induction coil for the body.
The method of manufacturing an in-vehicle induction coil for embolization, characterized in that it is wound in a spiral shape using the polygonal primary coil (12) to produce a polygonal secondary coil (13).
Surface spiral portion (19) is formed on the surface of the polygonal secondary coil (13) manufacturing method of the embolic induction body induction coil.
The jig (31) is a triangular jig, a hexagonal jig, a pentagonal jig or a hexagonal jig, characterized in that the manufacturing method of the in-body induction coil for embolization.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100135693A KR101250448B1 (en) | 2010-12-27 | 2010-12-27 | Embolus forming in-vivo indwelling-coil and the makigng methods for Embolus forming in-vivo indwelling coil |
PCT/KR2011/000770 WO2012091212A1 (en) | 2010-12-27 | 2011-02-07 | Embolisation coil which is retained in the body, and a production method for an embolisation coil which is retained in the body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100135693A KR101250448B1 (en) | 2010-12-27 | 2010-12-27 | Embolus forming in-vivo indwelling-coil and the makigng methods for Embolus forming in-vivo indwelling coil |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20120073813A KR20120073813A (en) | 2012-07-05 |
KR101250448B1 true KR101250448B1 (en) | 2013-04-08 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020100135693A KR101250448B1 (en) | 2010-12-27 | 2010-12-27 | Embolus forming in-vivo indwelling-coil and the makigng methods for Embolus forming in-vivo indwelling coil |
Country Status (2)
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KR (1) | KR101250448B1 (en) |
WO (1) | WO2012091212A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3193744A4 (en) * | 2014-09-15 | 2018-07-04 | Donald K. Jones | Intralumenal occlusion devices having improved properties |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5649949A (en) | 1996-03-14 | 1997-07-22 | Target Therapeutics, Inc. | Variable cross-section conical vasoocclusive coils |
WO2007121405A2 (en) | 2006-04-17 | 2007-10-25 | Micro Therapeutics, Inc. | System and method for mechanically positioning intravascular implants |
KR20090018962A (en) * | 2006-06-15 | 2009-02-24 | 마이크로벤션, 인코포레이티드 | Embolization device constructed from expansible polymer |
JP2010536491A (en) | 2007-08-17 | 2010-12-02 | ミクラス エンドバスキュラー コーポレイション | Twisted primary coil for vascular treatment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8715312B2 (en) * | 2001-07-20 | 2014-05-06 | Microvention, Inc. | Aneurysm treatment device and method of use |
KR20100107255A (en) * | 2009-03-25 | 2010-10-05 | 주식회사 엠비메디텍 | Detachable coil with helical shape which make complex-shaped coil basket easily used in endovascular treatment of cerebral aneurysms |
-
2010
- 2010-12-27 KR KR1020100135693A patent/KR101250448B1/en not_active IP Right Cessation
-
2011
- 2011-02-07 WO PCT/KR2011/000770 patent/WO2012091212A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5649949A (en) | 1996-03-14 | 1997-07-22 | Target Therapeutics, Inc. | Variable cross-section conical vasoocclusive coils |
WO2007121405A2 (en) | 2006-04-17 | 2007-10-25 | Micro Therapeutics, Inc. | System and method for mechanically positioning intravascular implants |
KR20090018962A (en) * | 2006-06-15 | 2009-02-24 | 마이크로벤션, 인코포레이티드 | Embolization device constructed from expansible polymer |
JP2010536491A (en) | 2007-08-17 | 2010-12-02 | ミクラス エンドバスキュラー コーポレイション | Twisted primary coil for vascular treatment |
Also Published As
Publication number | Publication date |
---|---|
WO2012091212A1 (en) | 2012-07-05 |
KR20120073813A (en) | 2012-07-05 |
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