WO2014081077A1 - Module de stent permettant de retirer des caillots de sang - Google Patents

Module de stent permettant de retirer des caillots de sang Download PDF

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Publication number
WO2014081077A1
WO2014081077A1 PCT/KR2013/000409 KR2013000409W WO2014081077A1 WO 2014081077 A1 WO2014081077 A1 WO 2014081077A1 KR 2013000409 W KR2013000409 W KR 2013000409W WO 2014081077 A1 WO2014081077 A1 WO 2014081077A1
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WO
WIPO (PCT)
Prior art keywords
stent
mesh
thrombus
blood vessel
expanded
Prior art date
Application number
PCT/KR2013/000409
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English (en)
Korean (ko)
Inventor
이종혁
김영호
Original Assignee
연세대학교 원주산학협력단
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Publication of WO2014081077A1 publication Critical patent/WO2014081077A1/fr

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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
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • 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
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • A61B2017/2215—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having an open distal end

Definitions

  • the present invention relates to a stent module, and more particularly, to a thrombus removal stent module with improved thrombus removal efficiency.
  • thrombolytic treatment using drugs or mechanical thrombolysis is used.
  • the soliter stent 10 is a push wire 12 for pushing the stent along the micro-conduit or conduit 11, and the mesh portion 14 connected to the push wire 12 end to remove the blood clot at the place where the thrombus is located. ).
  • the mesh portion 14 is formed between the proximal marker 13 and the distal markers 15 so that bundles of strands are entangled with each other, thereby making it easy to remove the thrombus.
  • the mesh unit 14 includes one adjacent point 13 and a plurality of circular contact points 15.
  • a plurality of mesh points 14 are disposed in an open shape.
  • the inlet of the induction conduit 16 becomes a thrombus. Because it is narrower than this captured stent, blood clots are often not removed, but detach from the stent and move distal to the vessel, causing new infarction.
  • the object of the present invention relates to a stent module to improve the efficiency of blood clot removal and reduce the complications that can occur during blood clot removal.
  • the stent module includes a stent, a push wire and an expandable induction conduit.
  • the stent has a mesh portion connected to close both the adjacent point and the original contact point at both ends.
  • the push wire pushes the stent toward the blood vessel where the thrombus is located.
  • the expanded induction conduit enters the vessel and expands the microconduit inducing the stent and the push wire into the vessel or recovers the stent and the push wire from which the thrombus is taken out of the vessel.
  • the stent may include a first mesh part connected to the first contact point, a second mesh part connected to the first mesh part, and a third mesh part connected to the second mesh part and the adjacent point. have.
  • the one contact point and the adjacent point is each one, each of the first and third mesh portion may form a bundle by branching from the contact point and the adjacent point.
  • each of the first and third mesh portions may include a greater number of meshes than the second mesh portion.
  • the first mesh portion may be longer than the third mesh portion.
  • the stent is connected to the push wire to move to the place where the thrombus is located, the first, second and third mesh portion is retracted as the micro-conduit withdraws while the push wire is fixed It can be extended radially to collect the thrombi.
  • the thrombus collected by the stent may be blocked from being left outside the stent by the far point and the first mesh portions while being recovered along the blood vessel.
  • the expandable induction conduit may include an entry portion and an extension portion extending from the entry portion and extending radially in the state of entering the blood vessel.
  • the proximal and distal ends of the extension are marked with a radiopaque material, and the extension can be extended by a length corresponding to the length of the stent.
  • the expanded radius of the extension may be greater than the radius of the stent extension.
  • the stent from which the thrombus is taken may be drawn into the expanded portion in an expanded state, and then recovered into the entry portion with decreasing radius.
  • the expanded induction conduit may be reduced in the radius of expansion when the stent from which the thrombus is collected is recovered outside the blood vessel.
  • the thrombus removal rate may be improved by increasing the fixing force for fixing the thrombus.
  • the strut of the second mesh portion is formed less than the mesh of the first mesh portion, the blood vessels within the blood vessel can be easily captured into the stent.
  • the induction conduit expands radially in the state of entering the blood vessel, compared to the case where the stent from which the thrombus is collected is directly recovered to a narrow radius entry portion, the possibility of thrombus remaining in the blood vessel is minimized to reduce the thrombus removal rate. It can improve and prevent complications caused by the migration of remaining thrombi.
  • the blood clots remain in the extension part of the expanded induction conduit, so that they can be easily discharged or removed by applying a negative pressure naturally or through a syringe without moving to the distal end of the vessel. Can be. This natural discharge is possible because the pressure in the vessels is higher than the external atmospheric pressure.
  • FIG. 1 is a perspective view showing a solitaire stent according to the prior art.
  • FIG. 2 is a perspective view showing a stent module according to an embodiment of the present invention.
  • FIG. 3A is a cross-sectional view taken along line II ′ of FIG. 2.
  • FIG. 3B is a cross-sectional view taken along line II-II 'of FIG. 2.
  • FIG. 4A is a perspective view illustrating a state in which the expanded induction conduit of FIG. 2 is not expanded.
  • FIG. 4B is a perspective view illustrating an expanded state of the induction conduit of FIG. 2.
  • 5A to 5F are schematic views illustrating a blood clot removal method using the stent module of FIG. 2.
  • FIG. 2 is a perspective view showing a stent module according to an embodiment of the present invention.
  • FIG. 3A is a cross-sectional view taken along line II ′ of FIG. 2.
  • FIG. 3B is a cross-sectional view taken along line II-II 'of FIG. 2.
  • the stent module 20 includes a stent 30, a push wire 36, a fine conduit 40, and an expanded induction conduit 50.
  • the stent module 20 shown in FIG. 2 illustrates a state where the stent 30 is located where blood clots are present, that is, at the moment of collecting blood clots, and the overall operation of the stent module 20 is illustrated in FIG. 5A. It will be described later with reference to Figure 5f.
  • the stent 30 includes a mesh portion having first and second mesh portions 33, 34, and 35 having a circular contact point 31 and an adjacent point 32 at both ends.
  • the first contact point 31 is defined as a contact point where the first mesh part 33 is collected at a position furthest from the end of the push wire 36, and the adjacent point 32 is a contact point of the push wire 36.
  • the third mesh part 35 is defined as a contact point at which the third mesh part 35 starts to unfold to the position closest to the end.
  • the stent 30 and the push wire 36 is moved to the place where the thrombus exists along the inside of the micro-conduit 40, the micro-conduit 40 is expanded in the radial direction as it retreats It is arranged in the shape shown in 2.
  • both the original contact point 31 and the adjacent point 32 are one. That is, in the conventional stent shown in FIG. 1, although the adjacent point 13 is one, a plurality of the contact points 15 are formed, and the stent has a net structure in which the part of the contact point 15 is open. .
  • the stent has a network structure of both ends closed form. That is, the first mesh part 33 is unfolded in the form of a net from the one contact point 31, and the third mesh part 35 is also unfolded in the form of a net from the one adjacent point 32.
  • the first and third mesh portions 33 and 35 corresponding to both ends of the mesh portion are connected between the first and third mesh portions 33 and 35. It has a denser net form than the second mesh portion 34 to be. That is, the first and third mesh portions 33 and 35 have a larger number of meshes than the second mesh portion 34.
  • the first mesh part 33 may be branched into six from the origin contact point 31 to form a mesh, and the second mesh part ( 34 may form three strands of struts extending along the contact point 36 where the two nets of the first mesh portion 33 merge into one.
  • the first mesh portion 33 may be divided into eight to form a net, and the second mesh portion 34 may form four strands of struts.
  • the three strands or four strands of the net combined in the second mesh portion 34 is formed in the third mesh portion 35 again six or eight meshes after the adjacent point ( 32) can be formed into a structure that is collected.
  • the number of meshes or struts of the first, second, and third mesh parts 33, 34, and 35 may be variously modified in consideration of the size of the thrombus to be removed and the thickness of the blood vessel.
  • the first mesh portion 33 branches from the one contact point 31, and the first mesh portion 33 forms a finer net than the second mesh portion 34. Therefore, when the stent 30 is collected in the direction of the expandable induction conduit 50 after collecting the thrombus, the collected thrombus is more stable by the far contact point 31 and the first mesh portion 33. Since the sample is strongly collected, the collected blood clot can be minimized from remaining in the blood vessel.
  • the first mesh part 33 may have a length longer than that of the third mesh part 35, that is, a long mesh section may be formed to capture sufficient blood clots.
  • the second mesh portion 34 is composed of three to four struts (struts) without forming a net and the number thereof is relatively smaller than that of the first mesh portion, so that blood clots in the blood vessels are easily captured in the stent. In addition, damage to the blood vessel caused by the second mesh part 34 may be minimized when the stent 30 is recovered.
  • the push wire 36 connecting the stent 30 and the stent enters the blood vessel through the microconduit 40 and then moves along the microconduit 40 to the place where the thrombus is finally located. Thereafter, the micro-conduit 40 is retracted in the direction of the expanded induction conduit 50, the stent 30 and the push wire 36 is exposed while expanding the blood vessel in which the thrombus in the form shown in FIG. It is placed inside.
  • the stent 30 and the push wire 36 are positioned in the target blood vessel in which the blood clot is present according to the guide of the micro-conduit 40.
  • the blood vessels needing to remove the thrombus are small vessels of very small radius, so that the stent 30 and the pushwire 36 may move along the vessels of a complicated structure to the place where the thrombus is located.
  • the stent 30 may cause damage to the normal blood vessel when the stent 30 is advanced along the blood vessel to remove the blood clot, and thus, the stent 30 may be moved to the place where the blood clot is located through the micro-conduit 40. Can be moved to prevent damage to blood vessels and stents.
  • the pull wire can be pulled to recover the stent, so that the stent is deformed to some extent according to the cross-sectional area of the blood vessel.
  • the expandable induction conduit 50 includes an entry portion 51 and expansion portions 52, 53.
  • the entry part 51 enters the blood vessel through the insertion tube 55 to form a guide through which the microconduit, the stent 30, and the push wire 36 may enter the blood vessel.
  • a passage for collecting the stent 30, the push wire 36, and the microconduit 40 is formed.
  • blood vessels that require removal of blood clots are generally small blood vessels such as small blood vessels, and the expanded induction conduit 50 cannot enter a blood clot, and is located in a blood vessel having a relatively large radius. Let's do it.
  • the stent 30 and the push wire 36 are guided from the expanded induction conduit 50 to the blood vessel in which the thrombus is located through the microconduit 40 as described above.
  • the expandable induction conduit 50 includes extensions 52 and 53, which will be described with reference to FIGS. 4A and 4B at the same time.
  • 4A is a perspective view illustrating a state in which the extension of FIG. 2 is not expanded.
  • 4B is a perspective view illustrating an expanded state of FIG. 2.
  • the expansion part 52 when the expandable induction conduit 50 enters a blood vessel, the expansion part 52 remains unexpanded and has the same size as that of the entry part 51. Have a radius.
  • the expansion portion 52 of the expandable induction conduit 50 is expanded in the radial direction to expand the volume.
  • the radius of the expanded expansion 53 is preferably smaller than the radius of the vessel in order to maintain blood flow without damaging the vessel in which the extension of the expanded guide conduit 50 is located.
  • the radius of the expanded extension 53 is slightly larger than the radius of the expanded stent 30.
  • the expansion portion 52 of the expandable induction conduit 50, the proximal and distal portions are marked with a radiopaque material to prevent damage to the expandable induction conduit during expansion of the balloon to the extension (52).
  • the length of the expanded expansion 53 is the same as or longer than the length of the stent 30 is that the stent 30 from which the blood clots can be drawn into the inside of the expanded expansion 53 desirable.
  • the expanded portion 53 of the expanded induction conduit is the blood vessel entry portion after the stent 30 and the push wire 36 and the fine conduit 40 from which blood clots are collected at the same time
  • the volume that has been inflated by the insertion tube 55 located therein is reduced and is recovered to the outside of the blood vessel together with the entry part 51.
  • the stent 30 and the push wire 36 from which blood clots are collected are introduced into the expanded expansion part 53 together with the micro-conduit 40 and then externally through the entry part 51. Is recovered.
  • the first, second and third mesh portions 33, 34, and 35 of the stent 30 are recovered to the entry part 51 while the radius thereof is reduced, and thus, the stent 30 may be recovered.
  • the thrombus radius that was collected by the battery is reduced to the entrance part 51.
  • the mesh portion of the stent 30 may be reduced or partially cut off and remain in the expanded expansion portion 53 of the expanded induction conduit rather than a blood vessel. have.
  • the remaining thrombi can be easily discharged to the outside because the pressure in the blood vessel is higher than the external atmospheric pressure, and if the size is difficult to naturally discharge, it can be easily removed by applying a negative pressure using a syringe or the like.
  • the amount of blood clots remaining in the blood vessel can be minimized.
  • 5A to 5F are schematic views illustrating a blood clot removal method using the stent module of FIG. 2.
  • the expanded induction conduit 50 after the expanded induction conduit 50 according to the present embodiment enters the inside of the entry vessel 62, the entry into narrow vessels such as a small artery in which the thrombus 63 is located is performed.
  • the wire 41 and the fine conduit 40 enter.
  • it in order to move to the place where the thrombus 63 is located, it must move along the blood vessel of a very complicated structure without damaging the blood vessel, and thus, an appropriate entry wire 41 and a micro conduit 40 should be selected.
  • the entry wire 41 is recovered to prepare for entering the stent 30 and the push wire 36.
  • the stent 30 and the push wire 36 are advanced along the inside of the micro-conduit 40 to the blood vessel region where the thrombus 63 is located so that a thrombus is formed between the stent contact point and the adjacent point.
  • the stent 30 is exposed while recovering the micro-conduit 40 in the direction opposite to the entry direction.
  • the exposed stent 30 is radially inflated in the order of the first mesh portion 33, the second mesh portion 34, and the third mesh portion 35 to be positioned in the thrombus 63.
  • the radially expanded first, second and third mesh portions 33, 34, 35 capture the thrombus 63.
  • the expansion part 52 of the expandable induction conduit 50 disposed near the entry vessel 62 before the process of FIG. 5A is previously inflated 53 in a radial direction using a balloon catheter. .
  • the stent 30 is recovered in the direction of the entry vessel 62 opposite to the entry direction while capturing the thrombus 63, and finally, of the expansion catheter 53. It is recovered internally. In this case, as the stent 30 is recovered, the thrombus 63 is relatively gathered into the first mesh portion 33 of the stent 30. In this embodiment, the first mesh portion 33 is Since the network structure branched from the contact point 31, the thrombus 63 is minimized to remain outside of the first mesh part 33 of the stent 30.
  • the stent 30 is recovered outside the blood vessel through the entry part 51 together with the collected thrombus 63 while the radius of the mesh part is reduced.
  • the falling or leaving the thrombus remains in the expanded expansion 53, the residual thrombus is naturally discharged by the difference between the internal pressure of the blood vessel and the external atmospheric pressure, or forced to apply a negative pressure through a syringe or the like Aspiration is removed.
  • the expanded induction conduit is recovered to the outside of the blood vessel, the expanded portion 53 is reduced by the insertion tube 55 and is recovered out of the blood vessel together with the entry part 51.
  • the stent module 20 can effectively remove the blood clot 63 because the blood clot 63 is located inside the stent, and minimize the blood clot separated into blood vessels during blood clot removal using the stent. Thus, complications associated with the procedure can be reduced.
  • the thrombus removal rate may be improved by increasing the fixing force for capturing and fixing the thrombi. Can be.
  • the thrombi can be easily located inside the stent.
  • the expanded induction conduit includes an expansion part, and the expansion part of the expansion induction conduit expands radially in the state where the blood vessel enters the blood clot, compared with the case where the stent from which the thrombus is collected is directly recovered to a narrow radius entry part.
  • the expansion part of the expansion induction conduit expands radially in the state where the blood vessel enters the blood clot, compared with the case where the stent from which the thrombus is collected is directly recovered to a narrow radius entry part.
  • the stent module according to the present invention has industrial applicability that can be used for mechanical procedures for removing blood vessels and the like when they are blocked by blood clots.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Surgery (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgical Instruments (AREA)

Abstract

La présente invention concerne un stent, un fil de poussée et un cathéter de guidage expansible. Le stent est pourvu une unité de maille reliée de façon à permettre à tous les marqueurs proximaux et les marqueurs distaux au niveau des deux extrémités de se fermer et une partie médiane correspondant à un nombre faible de formes de brin. Le fil de poussée pousse le stent vers un vaisseau sanguin à l'endroit où se situent les caillots de sang. Le cathéter de guidage expansible, dans un état expansé, après avoir été introduit dans le vaisseau sanguin déplace un micro-cathéter qui guide le stent et le fil de poussée ou retire le stent qui collecte les caillots de sang et le fil de poussée situé à l'extérieur du vaisseau sanguin.
PCT/KR2013/000409 2012-11-26 2013-01-18 Module de stent permettant de retirer des caillots de sang WO2014081077A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120134676A KR101303612B1 (ko) 2012-11-26 2012-11-26 혈전 제거용 스텐트 모듈
KR10-2012-0134676 2012-11-26

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CN107205745A (zh) * 2015-02-06 2017-09-26 急速医疗有限公司 用于血管内阻塞物清除的系统和方法
CN108095804A (zh) * 2018-02-10 2018-06-01 郑州大学第附属医院 一种脑血管可转变性多功能内支架装载回收与释放装置
CN108158630A (zh) * 2018-02-26 2018-06-15 上海加奇生物科技苏州有限公司 一种血管内血栓抓捕器
CN109890323A (zh) * 2016-10-27 2019-06-14 急速医疗有限公司 编织丝线管腔内装置
CN114191154A (zh) * 2022-02-18 2022-03-18 天津市环湖医院 一种一体式渐变直径的取栓支架

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KR101455630B1 (ko) 2013-06-30 2014-10-28 안지용 수동식 혈전 절제 기구
KR101635755B1 (ko) 2014-10-02 2016-07-04 한국과학기술연구원 표면개질된 스텐트
KR101613269B1 (ko) * 2014-11-19 2016-04-29 재단법인 아산사회복지재단 혈관내 의료용 부재 이송 장치
KR101729398B1 (ko) 2015-06-19 2017-04-25 한국생산기술연구원 팽창 또는 수축 등 수의적 조절이 가능한 혈전제거 및 혈류 재개통용 스텐트형 기구
KR101791148B1 (ko) 2016-02-12 2017-10-27 신경민 혈전 제거용 스텐트 및 그 제조 방법
KR101959898B1 (ko) 2017-07-06 2019-03-19 전북대학교산학협력단 뇌혈관 혈전제거용 스텐트 모듈
KR102125615B1 (ko) * 2018-08-28 2020-06-22 인제대학교 산학협력단 스텐트 시술장치
KR20210064885A (ko) 2019-11-26 2021-06-03 (주)링크옵틱스 혈전 제거 및 지혈을 위한 플라즈마 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989263A (en) * 1998-03-11 1999-11-23 Arteria Medical Science L.L.C. Hydraulically actuated dilatation mechanism for vessel dilatation and vascular prosthesis delivery and methods of use
US20030163158A1 (en) * 2000-06-22 2003-08-28 White Geoffrey H. Method and apparatus for performing percutaneous thromboembolectomies
US20090088832A1 (en) * 2001-12-03 2009-04-02 Xtent, Inc. Apparatus and methods for delivery of variable length stents
JP2009178518A (ja) * 2008-02-01 2009-08-13 Nipro Corp 医療用管状体、血栓捕捉部材回収用シース、血栓回収カテーテル及びバルーンカテーテル
KR20110040187A (ko) * 2009-10-13 2011-04-20 연세대학교 산학협력단 착탈 및 회수 가능한 색전보호장치 및 이를 구성하는 필터 어셈블리

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989263A (en) * 1998-03-11 1999-11-23 Arteria Medical Science L.L.C. Hydraulically actuated dilatation mechanism for vessel dilatation and vascular prosthesis delivery and methods of use
US20030163158A1 (en) * 2000-06-22 2003-08-28 White Geoffrey H. Method and apparatus for performing percutaneous thromboembolectomies
US20090088832A1 (en) * 2001-12-03 2009-04-02 Xtent, Inc. Apparatus and methods for delivery of variable length stents
JP2009178518A (ja) * 2008-02-01 2009-08-13 Nipro Corp 医療用管状体、血栓捕捉部材回収用シース、血栓回収カテーテル及びバルーンカテーテル
KR20110040187A (ko) * 2009-10-13 2011-04-20 연세대학교 산학협력단 착탈 및 회수 가능한 색전보호장치 및 이를 구성하는 필터 어셈블리

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US20180028209A1 (en) * 2015-02-06 2018-02-01 Rapid Medical Ltd. Systems and methods for intravascular obstruction removal
EP3253306A4 (fr) * 2015-02-06 2018-12-12 Rapid Medical Ltd. Systèmes et procédés pour élimination d'obstruction intravasculaire
US11083473B2 (en) 2015-02-06 2021-08-10 Rapid Medical Ltd. Systems and methods for intravascular obstruction removal
US11925368B2 (en) 2015-02-06 2024-03-12 Rapid Medical Ltd. Systems and methods for intravascular obstruction removal
CN109890323A (zh) * 2016-10-27 2019-06-14 急速医疗有限公司 编织丝线管腔内装置
CN109890323B (zh) * 2016-10-27 2023-09-12 急速医疗有限公司 编织丝线管腔内装置
CN108095804A (zh) * 2018-02-10 2018-06-01 郑州大学第附属医院 一种脑血管可转变性多功能内支架装载回收与释放装置
CN108095804B (zh) * 2018-02-10 2023-08-08 郑州大学第一附属医院 一种脑血管可转变性多功能内支架装载回收与释放装置
CN108158630A (zh) * 2018-02-26 2018-06-15 上海加奇生物科技苏州有限公司 一种血管内血栓抓捕器
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