KR100961466B1 - A stent - Google Patents

A stent Download PDF

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KR100961466B1
KR100961466B1 KR1020080009090A KR20080009090A KR100961466B1 KR 100961466 B1 KR100961466 B1 KR 100961466B1 KR 1020080009090 A KR1020080009090 A KR 1020080009090A KR 20080009090 A KR20080009090 A KR 20080009090A KR 100961466 B1 KR100961466 B1 KR 100961466B1
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stent
cylindrical body
hook
wall
microtubules
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KR1020080009090A
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Korean (ko)
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KR20090083114A (en
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신경민
남증희
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(주) 태웅메디칼
신경민
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Priority to KR1020080009090A priority Critical patent/KR100961466B1/en
Priority to US12/344,640 priority patent/US20090192588A1/en
Priority to JP2009005309A priority patent/JP2009178545A/en
Priority to EP20090250158 priority patent/EP2085050B1/en
Priority to DE200960000196 priority patent/DE602009000196D1/en
Priority to CN2009100019609A priority patent/CN101496754B/en
Publication of KR20090083114A publication Critical patent/KR20090083114A/en
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Publication of KR100961466B1 publication Critical patent/KR100961466B1/en
Priority to US15/044,892 priority patent/US20160158037A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/94—Stents retaining their form, i.e. not being deformable, after placement in the predetermined place
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)

Abstract

본 발명은 악성 종양이 아니면서 폐의 말단관, 미세호훼관 등의 미세관이 막히는 만성폐쇄성 폐질환용 환자를 위한 스텐트에 관한 것으로서, 좀더 상세하게는 초탄성 형상기억합금 와이어(11)를 교차되게 엮어 다수의 마름모형상의 공간부를 갖는 중공(中空)식 원통형 몸체(15)의 중앙 원주상에는 적어도 하나 이상의 별도 보조 와이어(30)를 엮어 고정하되, 상기 보조 와이어(30)의 일측 끝단은 원통형 몸체(15)의 외측으로 수평 또는 길이방향을 따라 만곡되게 돌출되어 관 내벽에 걸려 지지되는 걸고리(35)를 형성하므로, 폐의 미세관에 삽입 시술시에 걸고리가 관 내벽에 걸려 지지되면서 종래 만곡 걸림돌기와 같이 협관 내벽을 단순히 가압 지지하는 것이 아니라 걸고리가 삽입 지지되는 견고한 구조에 의해 설치 상태를 유지하여 협관의 시술 상태를 장구히 유지하도록 제공하는데 그 특징이 있다.The present invention relates to a stent for a patient for chronic obstructive pulmonary disease in which the microtubules such as the terminal tube, the microtubule, etc. of the lung are not malignant, and more particularly, cross the superelastic shape memory alloy wire 11. At least one separate auxiliary wire 30 is woven on the central circumference of the hollow cylindrical body 15 having a plurality of rhombic spaces, and one end of the auxiliary wire 30 is a cylindrical body ( 15) protrudes outwardly in a horizontal or longitudinal direction outward to form a hook 35 to be supported on the inner wall of the tube, so that the hook is caught on the inner wall of the tube during insertion into the lung microtubules while Like this, the internal structure of the buccal duct is maintained by a rigid structure in which the hook is inserted and supported, rather than simply supporting the inner wall of the buccal cavity. Its characteristics are to provide it.

폐, 스텐트, 협관, 미세관, 만성폐쇄성 폐질환, 걸고리 Lungs, stents, ducts, microtubules, chronic obstructive pulmonary disease, hooks

Description

만성폐쇄성 폐질환용 스텐트{A STENT}Stent for chronic obstructive pulmonary disease {A STENT}

본 발명은 악성 종양이 아니면서 폐의 말단관, 미세호훼관 등의 미세관이 막히는 만성폐쇄성 폐질환용 환자를 위한 스텐트에 관한 것으로서, 좀더 상세하게는 스텐트의 중앙 원주상에 별도의 보조 와이어를 엮어 고정하되, 와이어 일측 끝단이 외측으로 돌출되어 걸고리를 형성하므로 미세관에 삽입 시술시 걸고리가 관 내벽에 걸려 지지되면서 견고한 설치 상태를 유지하는 만성폐쇄성 폐질환용 스텐트에 관한 것이다.The present invention relates to a stent for a patient for chronic obstructive pulmonary disease in which the microtubules such as the terminal tube and the microtubule of the lung are not malignant, and more particularly, a separate auxiliary wire is woven on the central circumference of the stent. Fixing, but one end of the wire protrudes outward to form a hook so that the hook is supported on the inner wall of the tube when inserted into the microtubules for chronic obstructive pulmonary disease stent to maintain a solid installation state.

일반적으로 만성폐쇄성 폐질환(Chronic Obstructive Pulmonary Disease, COPD)의 악성 종양이 아니면서도 폐의 말단관, 미세호훼관 등의 미세관이 막히는 부위에는 협관의 확장 유지를 위해 스텐트를 삽입 시술하고 있다.In general, a stent is inserted to maintain the expansion of the duct in a region where the microtubules such as the terminal tube and the microtubule are blocked while not a malignant tumor of chronic obstructive pulmonary disease (COPD).

그러나 상기한 폐의 미세관, 특히 협관 부위로 시술되는 스텐트는 호흡에 의한 흡, 배기의 압력에 의해 설치 상태를 견고히 유지하지 못하고 협관 부위에서 벗어나는 등의 문제점이 있었다.However, the above-described lung microtubules, in particular, the stent treated by the buccal tract, have problems such as being unable to maintain the installation state firmly by the pressure of inhalation and exhaust due to respiration, and deviating from the duct.

한편, 종래 폐, 담관, 대장, 소장, 식도 등의 협관 부위로 시술하는 스텐트 가 개시된 바 있는데, 이는 스텐트 중앙 외주연에 만곡 걸림돌기를 돌출 형성하는 것이다.On the other hand, there has been disclosed a stent that is conventionally treated with the narrowing, bile duct, large intestine, small intestine, esophagus, etc., which protrudes from the center of the stent to the curved stopper.

즉, 도 1에 도시된 바와 같이 와이어(2)를 이용한 스텐트(5) 제조시, 상기 스텐트의 중앙 원주상으로 만곡 걸림돌기(3)를 돌출되게 절곡 형성한 것이다.That is, as shown in FIG. 1, when the stent 5 is manufactured using the wire 2, the curved stopping protrusion 3 is bent to protrude from the center circumference of the stent.

이러한 스텐트는 폐, 담관, 대장, 소장, 식도 등의 협관 내부로 삽입 시술되어 스텐트의 중앙 원주상에 형성된 만곡 걸림돌기(3)가 협관의 내벽에 밀착되어 지지되면서 설치 상태를 유지하도록 한 것이다.The stent is inserted into the canal of the lung, bile duct, large intestine, small intestine, esophagus, etc., so that the curved locking protrusion 3 formed on the central circumference of the stent is held in close contact with the inner wall of the buccal tube to maintain the installation state.

그러나 상기한 종래 스텐트는 단순히 중앙 원주상에 형성된 만곡 걸림돌기가 협관의 내벽에 밀착되어 지지되는 정도이므로 외부 압력이나 외력에 대해서 설치 상태를 견고히 유지하지는 못하는 문제점이 있었다.However, the above-described conventional stent has a problem that the curved locking protrusions formed on the center circumference are merely supported by being in close contact with the inner wall of the buccal tube, and thus the installation state is not firmly maintained against external pressure or external force.

즉, 폐의 호흡에 따른 흡,배기의 압력이나, 담관의 답즙 또는 대장, 소장 및 식도로 유동되는 유동물의 외력에 의해 스텐트가 협관 내부에서 견고한 설치 상태를 유지하지 못하는 등의 문제점이 있었다.That is, due to the pressure of intake and exhaust due to respiration of the lungs, or the external force of the fluid flowing into the bile duct or large intestine, small intestine and esophagus, there was a problem that the stent does not maintain a solid installation state inside the canal.

본 발명은 상기한 종래 기술이 갖는 제반 문제점을 해결하고자 발명된 것으로서, 악성 종양이 아니면서 폐의 말단관, 미세호훼관 등의 미세관이 막히는 만성폐쇄성 폐질환용 환자에 사용되는 것으로, 스텐트의 중앙 원주상에 별도의 보조 와이어를 엮어 고정하되, 와이어 일측 끝단이 외측으로 돌출되어 걸고리를 형성하므로 폐의 미세관에 삽입 시술시 걸고리가 관 내벽에 걸려 지지되면서 견고한 설치 상태를 유지하여 시술 상태를 장구히 유지하도록 하는데 그 목적이 있다.The present invention has been invented to solve the above-mentioned problems of the prior art, and is used in patients with chronic obstructive pulmonary disease in which microtubules such as terminal tubes, microtubules, etc. of the lungs are blocked without being a malignant tumor, the center of the stent A separate auxiliary wire is woven on the circumference and fixed, but one end of the wire protrudes outward to form a hook so that the hook is caught on the inner wall of the lung while the hook is held on the inner wall of the tube to maintain a solid installation. The purpose is to keep it.

이러한 본 발명은,This invention,

초탄성 형상기억합금 와이어를 교차되게 엮어 다수의 마름모형상의 공간부를 갖는 중공(中空)식 원통형 몸체의 중앙 원주상에 적어도 하나 이상의 별도 보조 와이어를 원통형 몸체를 구성하는 와이어를 감싸며 엮어 고정하되, At least one separate auxiliary wire is wrapped around the wire constituting the cylindrical body and fixed to the central circumference of the hollow cylindrical body having a plurality of rhombic spaces by interlacing the superelastic shape memory alloy wires.

상기 보조 와이어의 일측 끝단은 원통형 몸체의 외측으로 돌출되어 관 내벽에 걸려 고정되도록 수평이나 만곡 형상의 걸고리를 형성함에 의해 달성된다.One end of the auxiliary wire is achieved by forming a horizontal or curved hook to protrude outward of the cylindrical body to be fixed to the inner wall of the tube.

이러한 본 발명은 악성 종양이 아니면서 폐의 말단관, 미세호훼관 등의 미세관이 막히는 만성폐쇄성 폐질환용 환자에 사용되는 것으로서, 스텐트의 중앙 원주상에 별도의 보조 와이어를 엮어 고정하되, 와이어의 일측 끝단이 외측으로 수평이나 만곡되게 돌출되는 걸고리를 형성하므로 폐의 미세관에 삽입 시술시에 걸고리가 관 내벽에 걸려 지지되면서 종래 만곡 걸림돌기와 같이 협관 내벽을 단순히 가압 지지하는 것이 아니기 때문에 견고한 설치 상태를 유지하여 시술 상태를 장구히 유지하는 효과를 제공하게 되는 것이다.The present invention is used in patients with chronic obstructive pulmonary disease in which the microtubules such as terminal tubes, microtubules, etc. of the lungs are not malignant, and weave and fix a separate auxiliary wire on the central circumference of the stent. Since one end forms a hook that protrudes horizontally or curved outward, the hook is supported by the inner wall of the tube when inserted into the microtubule of the lung. It will be to provide the effect of maintaining the state of the treatment for a long time.

이하, 상기한 본 발명의 바람직한 실시 예를 첨부도면을 참조하여 구체적으로 살펴보기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 초탄성 형상기억합금 와이어를 교차되게 엮어 다수의 마름모형상의 공간부를 갖는 중공(中空)식 원통형몸체로 구성하는 스텐트를 이용한 것이다.The present invention utilizes a stent composed of a hollow cylindrical body having a plurality of rhombic spaces by interweaving a superelastic shape memory alloy wire.

즉, 본 발명의 만성폐쇄성 폐질환용 스텐트는 도 2 내지 도 5에 도시된 바와 같이, That is, the stent for chronic obstructive pulmonary disease of the present invention, as shown in Figures 2 to 5,

초탄성 형상기억합금 와이어(11)를 교차되게 엮어 다수의 마름모형상의 공간부를 갖는 중공(中空)식 원통형 몸체(15)를 형성하여 폐의 말단관, 미세호훼관의 협관 부위로 삽입 설치하는 스텐트(10)에 있어서,A stent for interlocking the superelastic shape memory alloy wire 11 to form a hollow cylindrical body 15 having a plurality of rhombus-shaped spaces and inserting it into the end pipe of the lung and the narrowing part of the microtubule. In (10),

상기 원통형 몸체(15)의 중앙 원주상에는 적어도 하나 이상의 별도 보조 와이어(30)를 원통형 몸체를 구성하는 와이어(11)를 감싸며 엮어 고정하되, 상기 보조 와이어(30)의 일측 끝단은 원통형 몸체(15)의 외측으로 돌출되어 관 내벽에 걸려 지지되는 걸고리(35)를 형성하여 이루어진다.At least one or more separate auxiliary wires 30 are wrapped around the wire 11 constituting the cylindrical body on the central circumference of the cylindrical body 15, and one end of the auxiliary wire 30 is the cylindrical body 15. Protruding to the outside of the tube is formed by the hook 35 is supported on the inner wall.

이때 상기 보조 와이어(30) 일측 끝단의 걸고리(35)는 수평으로 돌출되거나 관 내벽에 걸려 고정하도록 원통형 몸체(15)의 길이 방향을 향해 만곡 경사부(36)를 이루도록 구성된다.At this time, the hook 35 at one end of the auxiliary wire 30 is configured to form a curved inclined portion 36 toward the longitudinal direction of the cylindrical body 15 to protrude horizontally or to be fixed to the inner wall of the tube.

또한, 본 발명에서는 상기 걸고리(35)를 스텐트의 원주상에 2개를 형성한 것을 위주로 도시하였으나 이는 단독 또는 3개 이상의 수효로 설치할 수 있음은 물론이다.In addition, in the present invention, the hook 35 is shown mainly formed of two on the circumference of the stent, but this can be installed alone or three or more of course.

미설명부호로서, 55는 폐(50)의 미세관을 나타내는 것이다.Unexplained reference numeral 55 denotes a microtubule of the lung 50.

다음은 상기와 같이 구성되는 본 발명의 시술 및 작용 효과에 대해 살펴보기로 한다.Next will be a look at the treatment and effect of the present invention configured as described above.

본 발명의 스텐트(10)는 악성 종양이 아니면서도 폐의 말단관, 미세호훼관 등의 미세관이 막히는 만성폐쇄성 폐질환(Chronic Obstructive Pulmonary Disease, COPD)에 시술되는 것으로서, 호흡에 의한 흡,배기시에도 미세관에서 견고한 시술 상태를 유지하도록 함에 그 특징을 갖는 것이다.The stent 10 of the present invention is a non-malignant tumor and is treated in a chronic obstructive pulmonary disease (CPD) in which the microtubules such as lung terminal tubes and microtubules are blocked. It is characterized by maintaining a solid state in the microtubules during the procedure.

이러한 본 발명은 초탄성 형상기억합금 와이어(11)를 교차되게 엮어 다수의 마름모형상의 공간부를 갖는 중공(中空)식 원통형 몸체(15)의 중앙 원주상에 적어도 하나 이상의 별도 보조 와이어(30)를 엮어 고정한 것이다.In the present invention, at least one separate auxiliary wire 30 is formed on the central circumference of the hollow cylindrical body 15 having a plurality of rhombic spaces by interweaving the superelastic shape memory alloy wire 11. Weave and fixed.

이때 상기 보조 와이어(30)는 원통형 몸체를 구성하는 와이어(11)를 감싸며 엮어 고정하되, 그 일측 끝단은 원통형 몸체(15)의 외측으로 돌출되어 형성된 것이 다.In this case, the auxiliary wire 30 wraps and fixes the wire 11 constituting the cylindrical body, and one end thereof is formed to protrude outward of the cylindrical body 15.

이와 같은 본 발명의 스텐트(10)는 악성 종양이 아니면서도 협관되는 폐(50)의 말단관, 미세호훼관 등의 미세관(55)으로 별도의 삽입장치에 의해 삽입하여 협관 부위를 확장하도록 시술하게 되는 것이다.As described above, the stent 10 of the present invention is inserted into a microtubule 55, such as a terminal tube, a microtubule tube, of the lung 50, which is not a malignant tumor, and is expanded by a separate insertion device to expand the buccal region. Will be done.

이때 상기 스텐트(10)의 원통형 몸체(15) 중앙 원주상에 적어도 하나 이상으로 엮어 고정된 보조 와이어(30)의 걸고리(35)가 협관의 내벽에 걸림작동하기 때문에 견고한 설치가 견고한 설치가 가능하게 제공되는 것이다.At this time, since the hook 35 of the auxiliary wire 30 fixed by weaving at least one on the central circumference of the cylindrical body 15 of the stent 10 is locked to the inner wall of the buccal tube, a solid installation can be securely installed. It is provided.

더우기 호흡에 의한 흡,배기시에도 상기 보조 와이어(30)의 걸고리(35)가 협관 내벽에 걸림되는 견고한 설치 상태를 장시간 유지하게 되는 것이다.Moreover, even when inhalation and exhaustion due to breathing, the hook 35 of the auxiliary wire 30 is to maintain a solid installation state that is caught on the inner wall of the buccal tract for a long time.

특히, 상기 보조 와이어(30)의 걸고리(35)는 원통형 몸체(15)의 길이 방향을 향해 만곡 경사부(36)를 이루도록 형성하므로서 미세관(55)에 시술시 더욱 확실하게 벽면에 삽입되어 걸려지므로 시술 작업성을 더욱 우수하게 제공하게 되는 것이다.In particular, the hook 35 of the auxiliary wire 30 is formed so as to form a curved inclined portion 36 in the longitudinal direction of the cylindrical body 15 is inserted into the wall more securely when the micro-tub (55) during the procedure It is because it will provide more excellent workability.

이러한 본 발명에서 상기 걸고리(35)가 협관 내벽면에 삽입되게 시술되어도 문제가 되지 않는 것은 담관이나 식도 등과 같이 담즙이나 기타 내용물이 유동하는 것이 아니고 오직 호흡에 따라 흡,배기가 이루어지는 미세관이기 때문에 협관 내벽면에 삽입되게 시술하여도 가능한 것이다.In the present invention, the hook 35 is not a problem even if the procedure is inserted into the inner wall of the buccal duct because bile or other contents such as bile ducts or esophagus are not flowing, but only microtubules which inhale and exhaust according to breathing. It can also be inserted into the inner wall of the buccal duct.

도 1은 종래 스텐트를 보여주는 정면도.1 is a front view showing a conventional stent.

도 2는 본 발명 스텐트를 보여주는 정면도.Figure 2 is a front view showing the stent of the present invention.

도 3은 도 2의 측면도.3 is a side view of FIG. 2;

도 4는 본 발명 스텐트의 다른 실시 예를 보여주는 정면도.Figure 4 is a front view showing another embodiment of the present invention stent.

도 5는 본 발명의 사용 상태를 보여주는 정면도.5 is a front view showing a state of use of the present invention.

**도면의 주요 부분에 대한 부호의 설명**** Description of the symbols for the main parts of the drawings **

10: 스텐트 11: 와이어10: stent 11: wire

15: 원통형 몸체 30: 보조 와이어15: cylindrical body 30: auxiliary wire

35: 걸고리 36: 만곡 경사부35: hook 36: curved inclination

Claims (2)

초탄성 형상기억합금 와이어(11)를 교차되게 엮어 다수의 마름모형상의 공간부를 갖는 중공(中空)식 원통형 몸체(15)를 형성하여 폐의 말단관, 미세호훼관의 협관 부위로 삽입 설치하는 스텐트(10)에 있어서,A stent for interlocking the superelastic shape memory alloy wire 11 to form a hollow cylindrical body 15 having a plurality of rhombus-shaped spaces and inserting it into the end pipe of the lung and the narrowing part of the microtubule. In (10), 상기 원통형 몸체(15)의 중앙 원주상에는 적어도 하나 이상의 별도 보조 와이어(30)를 원통형 몸체를 구성하는 와이어(11)를 감싸며 엮어 고정하되, 상기 보조 와이어(30)의 일측 끝단은 원통형 몸체(15)의 외측으로 돌출되어 관 내벽에 걸려 지지되는 걸고리(35)를 형성하여 이루어진 것을 특징으로 하는 만성폐쇄성 폐질환용 스텐트.At least one or more separate auxiliary wires 30 are wrapped around the wire 11 constituting the cylindrical body on the central circumference of the cylindrical body 15, and one end of the auxiliary wire 30 is the cylindrical body 15. Protruding outward of the stent for chronic obstructive pulmonary disease, characterized in that formed by the hook 35 is supported hanging on the inner wall of the tube. 삭제delete
KR1020080009090A 2008-01-29 2008-01-29 A stent KR100961466B1 (en)

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KR1020080009090A KR100961466B1 (en) 2008-01-29 2008-01-29 A stent
US12/344,640 US20090192588A1 (en) 2008-01-29 2008-12-29 Biodegradable double stent
JP2009005309A JP2009178545A (en) 2008-01-29 2009-01-14 In-vivo degradable double-structure stent
EP20090250158 EP2085050B1 (en) 2008-01-29 2009-01-21 Biodegradable double stent
DE200960000196 DE602009000196D1 (en) 2008-01-29 2009-01-21 Biodegradable double stent
CN2009100019609A CN101496754B (en) 2008-01-29 2009-01-21 Biodegradable double stent
US15/044,892 US20160158037A1 (en) 2008-01-29 2016-02-16 Biodegradable double stent

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