JP7451400B2 - 末梢血管濾過システムおよび方法 - Google Patents
末梢血管濾過システムおよび方法 Download PDFInfo
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- JP7451400B2 JP7451400B2 JP2020520194A JP2020520194A JP7451400B2 JP 7451400 B2 JP7451400 B2 JP 7451400B2 JP 2020520194 A JP2020520194 A JP 2020520194A JP 2020520194 A JP2020520194 A JP 2020520194A JP 7451400 B2 JP7451400 B2 JP 7451400B2
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- 230000002093 peripheral effect Effects 0.000 title claims description 79
- 230000002792 vascular Effects 0.000 title claims description 62
- 238000000034 method Methods 0.000 title description 10
- 238000001914 filtration Methods 0.000 title description 8
- 210000005166 vasculature Anatomy 0.000 claims description 24
- 239000011148 porous material Substances 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 210000005259 peripheral blood Anatomy 0.000 claims description 2
- 239000011886 peripheral blood Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 description 32
- 239000012530 fluid Substances 0.000 description 15
- 238000011084 recovery Methods 0.000 description 10
- 210000004204 blood vessel Anatomy 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 8
- 208000007536 Thrombosis Diseases 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 3
- 208000010378 Pulmonary Embolism Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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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
- A61F2/01—Filters implantable into blood vessels
- A61F2/0108—Both ends closed, i.e. legs gathered at both ends
-
- 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
- A61F2/01—Filters implantable into blood vessels
- A61F2/011—Instruments for their placement or removal
-
- 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
- A61F2/01—Filters implantable into blood vessels
- A61F2/013—Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
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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
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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
- A61F2/01—Filters implantable into blood vessels
- A61F2002/016—Filters implantable into blood vessels made from wire-like elements
-
- 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
- A61F2210/0057—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof stretchable
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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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0067—Three-dimensional shapes conical
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- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0069—Three-dimensional shapes cylindrical
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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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0073—Quadric-shaped
- A61F2230/008—Quadric-shaped paraboloidal
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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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0091—Three-dimensional shapes helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0015—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in density or specific weight
- A61F2250/0017—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in density or specific weight differing in yarn density
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0023—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
Description
102 自己拡張式ステント
104 カテーテル
110 らせん
112 円錐形ネット
118 レトラクタワイヤ
122 ガイドワイヤ
200 自己拡張式ステント
206 レトラクタワイヤ
302 自己拡張式ステント
304 円錐形ネット
400 末梢血管フィルタ
402 送達カテーテル
408 自己拡張式ステント
410 ガイドワイヤ
412 カテーテル
414 ばねワイヤシステム
500 ばねワイヤシステム
600 らせん部分
602 カテーテル
604 ガイドワイヤ
606 ばね部分
610 二重ばねワイヤシステムを備えたカテーテル
612 第1のばね
618 第2のばね
620 ガイドワイヤ
700 カテーテル
704 レトラクタワイヤ
802 ステント
806 カテーテル
808 レトラクタワイヤ
810 拡張可能なフィルタ壁
812 レトラクタワイヤ
822 拡張可能なフィルタ壁
900 回収シャフト
904 カテーテル
1000 回収シャフト
1500 末梢血管フィルタ
1502 主フィルタ
1504 副フィルタ
1510 安定化リング
1512 安定化リング
1514 レトラクタワイヤ
1518 ばねシステム
1602 主フィルタ
1604 副フィルタ
1704 ループ
1801 フィルタ送達カテーテル
1802 フィルタワイヤ
1810 フィルタ送達カテーテル
1900 主フィルタ
1902 副フィルタ
1908 レトラクタワイヤ
1910 回収カテーテル
1912 レトラクタワイヤ
1920 ガイドワイヤ
2100 主フィルタ
2102 レトラクタワイヤ
2104 ばねシステム
2200 回収カテーテル
2202 フィルタばねワイヤ
2204 狭いカテーテル管腔
2206 ばね
2208 フィルタばねワイヤコンデンサ
2300 フィルタ
2304 回収カテーテル
Claims (18)
- 末梢血管フィルタであって、該末梢血管フィルタは、
中にキャビティを形成するフィルタ本体であって、該フィルタ本体は、末梢血管フィルタの長さ方向に近位端および遠位端を有し、前記近位端に開口部を有するフィルタ本体と、
前記フィルタ本体の近位側に配置され、前記フィルタ本体、および、フィルタワイヤと機械的に連結しており、前記長さ方向に沿って引き伸ばし可能なかつ圧縮可能なばねシステムと、
複数のレトラクタワイヤと、を含み、各レトラクタワイヤは、該各レトラクタワイヤが前記フィルタ本体と前記ばねシステムの間に配置されるように、前記フィルタ本体の近位端に連結された遠位端、および、前記ばねシステムの遠位端に連結された近位端を有し、
前記ばねシステムは、前記レトラクタワイヤと前記フィルタワイヤの間に配置されたらせんばねを含み、前記らせんばねは、力が加えられていないときの該らせんばねの長さの150%~200%の長さである最大に引き伸ばされたときの長さを有するように構成されており、
展開構成で、前記ばねシステムは、前記末梢血管フィルタが末梢血管系中の位置から移動されるようになることを防止するために、前記フィルタ本体の近位側で前記フィルタワイヤに印加される力を吸収する、末梢血管フィルタ。 - 前記フィルタ本体は、近位端で開口部を形成しているステント、および、前記ステントの遠位開口部を閉鎖するために前記ステントに連結されている円錐形フィルタを含む、請求項1に記載の末梢血管フィルタ。
- 前記ばねシステムは、前記複数のレトラクタワイヤの各々の近位端に配置された可撓性ループを含む、請求項1または2に記載の末梢血管フィルタ。
- 前記可撓性ループは、前記末梢血管フィルタが末梢血管系中の前記位置から移動されるようになることを防止するために、前記フィルタ本体の近位側で前記フィルタワイヤに印加される力を吸収するように長くなり、または、収縮するように構成されている、請求項3に記載の末梢血管フィルタ。
- 前記フィルタ本体は、該フィルタ本体の近位端に支持リングをさらに含む、請求項1~4のいずれか1項に記載の末梢血管フィルタ。
- 前記フィルタ本体は、前記ステントの遠位端に支持リングをさらに含む、請求項2に記載の末梢血管フィルタ。
- 前記ステントは、自己拡張式ステントである、請求項2に記載の末梢血管フィルタ。
- 前記展開構成で、前記フィルタ本体は、該フィルタ本体が配置されている組織管腔上に拡張力を及ぼし、前記組織管腔内で前記フィルタ本体の変位に抵抗する摩擦力を発生させる、請求項1~7のいずれか1項に記載の末梢血管フィルタ。
- 前記フィルタ本体は、円筒形主フィルタ、および、前記円筒形主フィルタに取り付けられた円錐形副フィルタを含む、請求項1~8のいずれか1項に記載の末梢血管フィルタ。
- 前記円錐形副フィルタは、前記円筒形主フィルタによって形成された管腔内に部分的に配置される、請求項9に記載の末梢血管フィルタ。
- 前記副フィルタの近位端は、前記主フィルタの内側面に連結されている、請求項9に記載の末梢血管フィルタ。
- 前記末梢血管フィルタは、約2mm~約26mmの最大径を有する、請求項1~11のいずれか1項に末梢血管フィルタ。
- 前記末梢血管フィルタは、約2mm~約4mmの最大径を有する、請求項1~11のいずれか1項に記載の末梢血管フィルタ。
- 前記フィルタ本体は、約5μm~約80μmの孔を有する有孔性材料を含む、請求項1~13のいずれか1項に記載の末梢血管フィルタ。
- 前記フィルタ本体の前記孔は、該フィルタ本体の遠位端におけるよりも該フィルタ本体の近位端においてより大きい、請求項14に記載の末梢血管フィルタ。
- 前記末梢血管フィルタは、末梢血管系で使用されるようになっている、請求項1~15のいずれか1項に記載の末梢血管フィルタ。
- 前記複数のレトラクタワイヤは、3つのレトラクタワイヤを含む、請求項1~16のいずれか1項に記載の末梢血管フィルタ。
- 前記ばねシステムは、10.16mm(0.4インチ)よりも小さい最大幅を有する、請求項1~17のいずれか1項に記載の末梢血管フィルタ。
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CN110025356A (zh) * | 2019-04-11 | 2019-07-19 | 马路平 | 多功能输尿管导丝 |
CN110353762B (zh) * | 2019-06-19 | 2020-08-21 | 中国人民解放军陆军军医大学第一附属医院 | 一种取栓装置 |
US11707351B2 (en) | 2019-08-19 | 2023-07-25 | Encompass Technologies, Inc. | Embolic protection and access system |
CN111110399B (zh) * | 2019-12-09 | 2021-12-03 | 先健科技(深圳)有限公司 | 植入式器械 |
CN113520674A (zh) * | 2021-07-16 | 2021-10-22 | 湖南埃普特医疗器械有限公司 | 一种瓣膜扩张保护装置 |
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