TW396029B - Apparatus for endovascular thermal thrombosis and microcatheter - Google Patents
Apparatus for endovascular thermal thrombosis and microcatheter Download PDFInfo
- Publication number
- TW396029B TW396029B TW085109034A TW85109034A TW396029B TW 396029 B TW396029 B TW 396029B TW 085109034 A TW085109034 A TW 085109034A TW 85109034 A TW85109034 A TW 85109034A TW 396029 B TW396029 B TW 396029B
- Authority
- TW
- Taiwan
- Prior art keywords
- heating
- line
- coil
- patent application
- vascular system
- Prior art date
Links
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
- A61B18/082—Probes or electrodes therefor
-
- 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
-
- 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
-
- 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
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12136—Balloons
-
- 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
- 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
- A61B17/12145—Coils or wires having a pre-set deployed three-dimensional shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00022—Sensing or detecting at the treatment site
- A61B2017/00026—Conductivity or impedance, e.g. of tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
-
- 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
- A61B2017/1205—Introduction devices
- A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
- A61B2017/12063—Details concerning the detachment of the occluding device from the introduction device electrolytically detachable
-
- 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
- A61B2017/22038—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 with a guide wire
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00666—Sensing and controlling the application of energy using a threshold value
- A61B2018/00678—Sensing and controlling the application of energy using a threshold value upper
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00761—Duration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00875—Resistance or impedance
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00886—Duration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1226—Generators therefor powered by a battery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1246—Generators therefor characterised by the output polarity
- A61B2018/1253—Generators therefor characterised by the output polarity monopolar
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1246—Generators therefor characterised by the output polarity
- A61B2018/126—Generators therefor characterised by the output polarity bipolar
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1266—Generators therefor with DC current output
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1435—Spiral
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1495—Electrodes being detachable from a support structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3966—Radiopaque markers visible in an X-ray image
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Reproductive Health (AREA)
- Physics & Mathematics (AREA)
- Otolaryngology (AREA)
- Plasma & Fusion (AREA)
- Neurosurgery (AREA)
- Cardiology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Surgical Instruments (AREA)
- Medicines Containing Plant Substances (AREA)
- Radiation-Therapy Devices (AREA)
- Electrotherapy Devices (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Prostheses (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Description
A 7 ^ _ _B7__ 五、發明説明(1) 有關之申請書 本申請書爲i994年9月23日所提出,提爲^用 以形成栓塞於動脈,靜脈,血管瘤,血管畸形,及動靜脈 癭管中之血管內可電解分離之線及端件之改良'之美專利 申請書序號0 8/3 11,5 0 8之後續部份,後者爲於 1992年2月24日所提出,並以美專利5 ,3 5 4, 2 9 5號頒發之申請書之後續申請書,後者又爲於 1 900年3月13日所提出,並以美專利5,122, 1 3 6號頒發之申請書序號4 9 2,717之後續申請書 ,所有此等整個列作參考。 · 發明背景 1 ·發明部份 本發明係有關血管內之裝置及方法,且特別係有關甩 於血管內加熱血液之裝置,以促進血管瘤中之血栓,動靜 脈畸形或癭管中之血栓,及加熱腫瘤中之血液,俾因而摧 毀腫瘤細胞。 經濟部中央標準局員工消費合作社印製 (讀先閱讀背面之注意事項再填寫本頁) 2 ·先行技藝之說明 每年在北美約有2 5,0 0 0件顱內血管瘤破裂。治 療破裂之顱內血管瘤之主要目的在防止其再流血。目前, 大體有三種治療方法,即血管外,血管內,及血管內外方 法。 血管外方法包含血管瘤或治療位置之外科或微外科手 本紙張尺度適用中國國家標準(CNS )八4規格(210X297公釐)~~ — A7 - __ ___B7____ 五’、發明説明(2) 術’用以保留母動脈。此爲顱內漿果血管瘤之普通治療。 該方法包括步驟:夾住血管瘤之頸部,執行頸部之縫合結 紮’並包裹整個血管瘤。此等外科手術由進入體中執行, 自血管瘤或目的地外執行。此外科手術中通常需要全身麻 醉’頭顱切開,腦收縮,及血管瘤之頸部周圍之蜘蛛膜切 除,及設置夾子。顱內血管瘤之外科手術預期死亡率爲4 - 8%,及發病率爲1 8 — 2 0%。由於預期之死亡率及 發病率,外科手術常延緩,同時等待最佳之手術時刻,結 果,更多百分率之病人在手術前死於該病》爲此,先行技 藝尋求另外之治療方法。 在血管內方法中,經由使用微導管進入血管瘤內。諸 如由艾其遜顯示於美專利4,8 8 4,579號之|導管 導引線〃,及說明於艾其遜之美專利4,739,768 (1 9 8 8 )之%用於導引線追蹤上之導管〃中,最近發 展之微導管可插進至大腦動脈中,並進入頭顱血管瘤中。 經濟部中央標準局員工消費合作社印製 (請先聞讀背面之注意事項再填寫本頁) 在此程序中,一氣球普通連接於微導管之末端,並可 引進至血管瘤中,加以膨脹*及分離留下*以堵塞住襄瘤 及頸部,而保留母動脈。雖漿果血管瘤之血管內氣球栓塞 法在血管外外科手術困難之情況爲一吸引人之方法,但由 於囊瘤之部份之可能過度膨脹,及由於在氣球分離時所產 生之拉力,氣球之膨脹進入血管瘤中帶有一些血管瘤破裂 之危險。 雖有矯正方法來處理普通血管外外科手術期間之破裂 血管瘤,但如在血管內氣球栓塞法之期間中血管瘤破裂, 本紙張尺度適用中國國家標準(CNS > A4規格(210X29?公釐) ~ '~ * — Π — 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明(3 ) 則無滿意之方法。 而且.,一理想之栓塞物應本身配合血管瘤之內壁之不 規則形狀。反之,在氣球栓塞之情形*血管瘤壁需配合氧 球之形狀。此可能不會達成滿意之結果,且進一步增加破 裂之危險。 而且,並非恆可使用氣球栓塞法。如收縮之氣球之直 徑太大,不能進入腦內動脈中,尤其是在有血管痙攣之情 形,會發生併發之顱內血管瘤破裂。此程序故需暫緩,直 至痙攣消失爲止,且此故此引起再流血之危險。 在血管外內之方法中,由外科手術露出,或由探針在 趨異體性上到達血管瘤。然後自外部在血管瘤壁上穿孔, 並使用各種方法來堵塞內部,以防止其再流血。此等先行 技藝之方法包括電性栓塞法,氰基丙烯酸異丁酯栓塞法, 豬毛栓塞法,及鐵磁栓塞法。 在使用血管外—內治療之電性检塞法中,一正電極之 端件由外科插進血管瘤內。正電荷吸引在普通p Η之血液 中負電荷之白血球,紅血球,血小板,及纖維蛋白原。然 後,在血管瘤中端件周圍形成血栓塊。其後,端件移出。 閱莫蘭之^顱內漿果血管瘤及頸動脈空洞癭管之外科栓塞 之試驗',神經外科雜誌,卷41,1974年12月版 ;細部知之,電栓塞頸動脈空洞癭管〃,神經外科雜誌, 卷42 ’ 197 5年1月版;阿拉基等之,用以治療顱內 血管瘤之電氣引起之栓塞法,,國際醫學會系列摘要,阿 姆斯特丹1965年,卷110,6 5 1 — 654 ;昭雅 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X 297公釐) (請先閱讀背面之注意事項再填离本頁) 訂 #1. 經濟部中央標準局員工消費合作社印製 A7 ______B7 五、發明説明(4 ) 等之'"在血管內栓塞法中之一病因素之生物電氣現象| , 美國生理雜誌’卷175,103 — 107 (1953) ;皮頤等之a由直流所產生之選擇性血管栓塞法;動物試 驗"·,神經放射雜誌,卷5,1 39 — 1 52頁( 1 9 8 7 )。然而,此等方法各包含一些侵入程序,自體 外到達血管瘤。 先行技藝亦設計使用液體黏著劑,氰基丙烯酸異丁酯 (IBCA) ’此與血液接觸時迅速聚合化,以形成固定 之血塊》液體黏著劑由小針穿進囊瘤而注射進血管瘤中。 爲避免注射I B C A時漏進母動脈中,需暫時減少或中斷 血液流經母動脈。或且,可置一膨脹之氣球於動脈中血管 瘤頸部處,以便注射》除由暫時阻斷母動脈所引起之危險 外’如不完全堵塞住,此聚合化中之黏著劑有滲漏進入母 動脈中,結果栓塞住動脈之危險。 而且,先行技藝有使用空氣槍,穿過血管瘤壁注射豬 毛,以引起內部血栓。此法之成功涉及充分露出血管瘤, 俾空氣槍可注射,且並未確實顯示在血栓形成上獲致成功 〇 先行技藝之血管外-內治療法中之鐵磁栓塞法包括在 趨異體性上置一磁探針於血管瘤之囊瘤上,其後由注射針 注入鐵微球於血管瘤中。由血管外之磁鐵使微球聚集,然 後形成血管瘤內栓塞。此治療並未完全成功,因爲當血管 外磁鐵移去時,有金屬栓塞碎裂之危險。有使用鐵粉懸浮 於甲基異丁烯酸甲酯中來防止碎裂。該治療並未獲得贊同 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ297公釐) I.--------h)---------、玎--一----Φ— 二; - (請先閱讀背面之注意事項再填寫本頁) A 7 _ —___iB7 五’、發明説明(5) (請先閱讀背面之注意事項再填寫本頁) ’因爲需要刺進血管瘤中,有堵塞母動脈之危險,使用特 殊及昂貴之裝備,需要切開顱骨及全身麻醉,及需要刺進 大腦組織,以到達血管瘤處。 血管內血液凝結亦爲本藝中所熟知,且使用雷射光產 生熱之一裝置由歐力來顯示於美專利4,7 3 5,2 0 1 (1988), '用於動脈,靜脈,血管瘤,血管畸形, 及動靜脈瘿管之血管內雷射凝結上之光纖及可連接之金屬 端件亦參閱歐力來等之'雷射引起之熱栓塞漿果血管 瘤:初步實驗結果',放射學,卷171 ,第2號, 經濟部中央標準局員工消費合作社印製 4 7 1 — 7 4頁(1 9 8 9 )。歐力來由血管內微導管置 —端件於血管瘤中。端件黏接於光纖上,光纖由微導管放 進。自微導管之近端處之一遠端雷射發送光能沿光纖進行 。光能加熱端件,以燒灼血管瘤之頸部或欲栓塞之其他血 管口周圍之組織》導管設有一氣球,置於其末端上或鄰近 ,以切斷血液流至欲燒灼及栓塞之位置。血流普通會帶走 導管端件處之熱,從而阻:!(:燒灼。端件中之熱亦用以熔化 用於固定端件於光纖末端上之黏著劑。如一切進行良好, 端件可脫離光纖,並留於血管瘤之頸部處,假如燒灼完成 ,同時熱熔化之黏著劑熔化。 栓塞並非由加熱之端件形成。而是,包圍端件之血液 組織凝結。凝結爲蛋白質之變性,以形成連接狀之組織, 與蛋之蛋白質加熱,並自透明液體變爲不透明白色固體時 所發生者相似。凝結之組織之特性及組成份基本上與由白 及紅血球,血小板,及纖維蛋白原之栓塞集合所形成之栓 本紙張尺度適用中國國家標準(CNS〉A4規格(210X297公釐) 經濟部中央標準局員工消費合作社印製 A7 _ B7 五、發明説明(6 ) 塞不同,凝結組織較栓塞塊爲軟,且故此較容易脫落。 歐力來之裝置至少部份取決於成功之燒灼,此在加熱 之端件脫離光纖前發生。加熱之端件亦需與血管瘤之頸部 有相當比例之大小,俾有效凝結在其周圍之組織,以阻斷 該頸部。相信血管瘤內部之組織仍保持大致不凝結》而且 ,連接端件於光纖上之熱熔化黏著劑熔化,並分散於鄰近 之血液組織中,在'此重行固化*以形成自由微粒於顱內血 流中,具有缺點與由鐵磁電栓塞之碎裂所引起者相同。 故此,需要一種裝置及方法,避免上述先行技藝之缺 點及限制。 發明概要 本發明爲一種用於血管系統內之導管之改良。該改良 包含至少一輸送線。至少一加熱線圈連接至輸送線。輸送 線及加熱線圈二者電絕緣,俾可置輸送線及加熱線圏於血 管系統中血管內,以輸送熱至血管系統內預定地點處之流 體。大致所有之熱由電流流於加熱線圈內,而非輸送線內 所產生,因爲加熱線圈電阻較大。結果,在血管系統內提 供熱治療。 輸送線及加熱線圈暫時相互連接,並可選擇分離。在 較宜之實施例中,輸送線及加熱線圈由電解相互分離。然 而,輸送線及加熱線圈亦可由機械相互分離。 該改良另包含至少二輸送線及至少二加熱線圈,各具 有一近端及末端。加熱線圈之近端各連接至二輸送線之對 本紙張尺度適用中國國家標準(CNS ) A4規格(210 X 297公釐) 0 —y _ -----------------訂丨L----- -. - - ^ (請先閲讀背面之注意事項再填寫本頁) A7 B7 五、發明説明(7 ) 應一條。二加熱線圈之末端連接一起,以形成一連續電路 通過一輸送線至一加熱線圈,再接至另一加熱線圈,再接 至另一輸送線。 在圖示之實施例中,二加熱線圈各爲螺旋形,並一起 形成一雙螺旋端件。在另一實施例中,二輸送線之一爲螺 旋形,及二輸送線之另一爲非螺旋形。 在另一實施例中,該改良另包含,一體電極,在電路中 ,身體具有血管系統。加熱線圈具有一近端及末端。近端 連接至輸送線,及另含有一未絕緣之線圈連接於加熱線圈 之末端》未絕緣之線圈之電阻低於加熱線圈,俾由電流所 產生之大致所有之熱均在絕緣之加熱線圈內產生。未絕緣 之線圈用作血管內電極,以完成通過輸送線及加熱線圏而 至體電極之電路。 該改良另包含一電流源,連接至輸送線,用以控制輸 送電流於其上。 經濟部中央標準局員工消費合作社印聚 (讀先閱讀背面之注,意事項再填寫本頁) 本發明並爲一種用以在血管系統內預定位置處凝結血 液之方法。該方法包括步驟:置一微導管於血管系統內預 定位置處,及自微導管放置至少一絕緣之加熱線圏於預定 位置處》絕緣之加熱線圈電連接至一絕緣之輸送線,輸送 線包含於微導管內,並向外伸至血管系統。電流由輸送線 施加於加熱線圈,以加熱血管系統內預定位置處之流體, 俾由熱製造一栓塞於該處。因此形成熱栓塞於血管系統內 可選擇性達成。 在所示之方法中,在電路中連接一起之至少二絕緣加 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐)1f) A7 B7 五'、發明説明(8) 熱線圈置於血管系統內。施加電流於輸送線及加熱線圈中 大致僅在加熱線圈內產生電阻》 在一實施例中,該方法另包含施加電流通過絕緣之加 熱線圈而至與血管系統中之流體電接觸之一未絕緣之線圈 端件,以完成一電路通過輸送線,加熱線圈,及線圈端件 電極,而至與血管系統在電氣上相通之體電極。 本發明之又另一特徵爲一種用以治療癌症之方法,包 括步驟:置一微導管於血管系統內預定位置處,在流至腫 瘤塊之血液中。至少一絕緣之加熱線圈由微導管置放於預 定位置處。絕緣之加熱線圈電連接至絕緣之輸送線,輸送 線包含於微導管內,並向外伸進血管系統中。電流施加通 過輸送線而至加熱線圈,以加熱血管系統內預定位置處之 血流,施加熱應力於下游之腫瘤塊上。結果,執行腫瘤塊 之熱治療。 轉至以下之附圖,可更明療本發明及其各種實施例, 在附圖中,相同之元件註以相同之參考編號。 經濟部中央標準局員工消費合作社印製 (讀先間讀背面之注意事項再填寫本頁) 附圖簡述 / 圖1爲本發明具體之」董/端企之;簡單概要側視圖。 圖2爲本發明之第二實ϋ例之簡.單概要側視圖。 圖3爲本發明之第三實施例之簡澤―概要側視亂。 圖4爲本發明之第四實施例之肩單概要側視圓。 圖5爲想像圖,顯示導—管之―放-置、;Μι—管瘤內,使用本 發明之一*施例^ 本紙灰·尺度適用中國國家標準(CNS ) A4規格(210X297公釐) ' A7 B7 五’、發明説明(9) 圖6爲本發明之另一實施例之簡單概要圖,顯示用於 治療癌症.。 圖7 a爲一實施例之簡單斷面側視圖,用於可實+施本 發明之一第二方法中。 圖7 b爲第二實施例中所顯示之導董端_件_之_簡^1姻LJI 圖.,亦可用於本發明之第二方法中。 圖8爲一簡單概要圖,此顯示一電源,具有二ϋ產 生器及一 A C或^產生:器,經由一_單^^1農開』1^垔 輸送線。, 元件標號說明 (讀先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局0貝工消費合作社印製 1 0 導 管 1 2 ,1 4 絕 緣 不 銹 鋼 輸 送 線 1 6 絕 緣 套 1 8 端 2 0 鐵 弗 龍 絕 緣 之 鉑 螺 旋 線 函 圈 2 2 輸 送 或 引 導 導 管 2 4 端 2 6 鐵 弗 龍 絕 緣 之 鉑 螺 旋 線 圈 圈 2 8 雙 螺 旋 端 件 3 0 末 端 3 2 塗 有 鐵 弗 龍 之 鉑 直 線 3 4 暫 時 或 可 分 離 連 接 點 3 6 信 號 或 電 源 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) A7 B7五‘、發明説明(ίο) 經濟部中央標準局肩工消費合作社印製 3 8 雙 極 雙 投 開 關 4 0 D C 產 生 器 4 2 A C 或 R F 產 生 器 4 4 血 管 瘤 > 動 静 脈 畸 形,或瘻管 4 6 頸 部 4 8 血 管 5 0 微 導 管 5 2 可 分 離 氣 球 5 4 體 電 極 5 6 血 管 5 8 血 管 腫 瘤 塊 6 0 刖 頭 6 2 單 個 螺 旋 鉑 鎖 線 圈 6 4 可 分 離 連 接 點 6 6 單 條 不 銹 鋼 輸 送 線 6 8 絕 緣 套 7 0 末 端 7 2 未 絕 緣 之 鉑 銥 線 圈 7 4 永 久 或 焊 接 之 連 接 點 7 6 單 極 雙 投 開 關 7 8 血 管 現可轉至以下之詳細說明,明瞭本發明及其各種實施 例〇 (請先閱讀背面之注意事項再填寫本頁)
本纸張又度適用中國國家標準(CNS ) A4規格(210X 297公釐) A 7 ___·_B7_'_ 五、發明説明(11) 較宜實施例之詳細說明 在血管瘤,動靜脈畸形,或癭管中由一導管產生血凝 結,導管具有一絕緣之加熱線圈連接至絕緣之輸送線。在 一實施例中,二輸送線連接至加熱線圈,以形成一閉合電 路。加熱線圈可爲雙螺旋或單螺旋形狀,與一直線加熱線 圈組合。加熱線圈可永久連接於輸送線圈,或可由電解或 機械與其分離。 或且,一單個絕緣之加熱線圈可連接至一單條絕緣之 輸送線,具有未絕緣之線圈連接至絕緣之加熱線圈之末端 。電路然後通過加熱線圈及未絕緣之電極線圈而進入血管 系統中,並至體電極上。 · 導管亦可用以加熱血管系統內直接流至腫瘤塊中之血 液,俾以熱洽療癌症。 本發明中有二種主荽方法,可達成熱栓塞之目的,第 一種顯示於圖1- 6,此使用一些雙線或閉合電路環之形 狀,及第二種以與導管末端相連之形態顯示於圖7 a及 7 b ,此使用一些單線或體電路環之形狀。 經濟部中央標準局員工消費合作社印裝 (請先閱讀背面之注意事項再填寫本頁) 在此等方法內,本發明可使用多個不同之實施例或修 改實施。而且,本發明方法之導管端件且不獨可用以促進 血管瘤,動靜脈畸形,或癭管中之血凝結,且可用以治療 腫瘤細胞。 先討論促進血管內形成血凝結之第一種方法,如顯示 於圖1 一 5。如顯示於圖1,整個由參考編號10標示之 一導管設有二絕緣不銹鋼輸送線1 2及1 4,由絕緣套 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) ~ 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明(12) 1 6包覆。本藝中現所知或以後發展之其他導管元件可包 含於所用之導管之實標結構中。輸送線1 2及1 4顯示本 身與導管組件絕緣,而其餘之導管結構則爲普通結構,且 對本發明之操作大部份並不關要。然而,應清楚明瞭,輸 送線12及14並非必需成一對相關連之線置於血管系統 中’如圖1 一 4之簡單概要側視圖可表示》而是,線1 2 及1 4可適當包含於普通設計之輸送或引導導管內,此在 圖5中由參考編號2 2象徵表示。線1 2及1 4可爲同軸 〇 輸送線1 2在其一端1 8處終止.其絕緣套1 6,並在 端1 8處或附近連接至鐵弗龍絕緣之鉑螺旋線圈2 0。鉑 螺旋線圈20之直徑普通在0·1至〇·5毫米範圍,並 可包含一密螺旋鉑線,此當自輸送導管2 2之末端伸出時 ,如顯示於圖5,本身形成一螺旋外形,如圖1 — 4之大 螺旋形所示。 同樣,不銹鋼輸送線1 4在其末端2 4處連接至一鐵 弗龍絕緣之鉑螺旋線圈2 6,此在釋放時,亦在圖1之實 施例中伸出成螺旋形。線圈2 0及2 6如此形成一對螺旋 線圈,大體形狀與一 DNA分子之雙螺旋線圈相同。螺旋 線圏2 0及2 6在其末端3 0處連接一起,或可由一線圈 製造,然後在末端3 0處變曲並折回。 在圖1之實施例中,輸送線1 2及1 4分別與螺旋線 圈2 0及2 6間由永久焊接點連接,唯亦可想到其他機械 及電連接,其一些說明於_2 — 4之實施例中。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (讀先闡讀背面之注意事項再填寫本頁) -° 經濟部中央標準局員工消費合作社印製 kl B7 五_、發明説明(13) 而且,除大體形成如圓1所示之螺旋外形外,鉑線圈 2 0及2 .6可完全或大致柔軟,或無預定或預偏壓之形狀 ’俾由釋放之線圈2 0及2 6形成鬆鳥巢之形狀,而非如 圖1之實施例中所顯示之趨於形成D N A形之雙螺旋線圈 結構。換言之,線圈2 0及2 6在自導管2 2之末端放出 後,可或可不保持一些相互關連之形狀,此視所用之實施 例而定。 製造線圈2 0及2 6之鉑或鉑鎢合全之電阻普通遠高 於製造線1 2及1 4之不銹鋼輸送線。故此,可施加電流 於由線圈2 0及2 6所構成之雙螺旋端件2 8,以選擇使 端件2 8加熱,而在輸送線1 2及1 4中並無重大之熱產 生,因爲二者間之電阻相差大》 經由輸送線1 2及1 4施加於線圈端件2 8上之電流 可爲D C電流,交流,射頻電力信號,或此等之任何組合 。不管電流之頻率如何,電流信號可具有任何所需之外形 ,或可以任何所需之方式調變,包括調變爲正弦波,方波 ,三角波,脈波,連續波等之形狀。 線圈2 0及2 6塗有鐵弗龍,或設有對生物無毒之其 他材料,以防止線圈2 0及2 6間在任何點短路。在圖1 之實施例中,輸送線1 2及1 4分別與線圈2 0及2 6間 之焊接連接點同樣可加以絕緣,或置於與絕緣1 6之末端 1 8及2 4相對之不同之縱向位置,以避免或協助避免焊 接連接點間之短路。 圖2之實施例亦以簡單之側視圖顯示導管1 0,且在 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) ~ I.--------U------iT-------,φ, . - r (請先鬩讀背面之注意事項再填寫本頁) 經濟部中央標準局負工消費合作社印^ A7 B7五、發明説明(14) 各方面與圖1之實施例相同’唯線圏2 6由塗有鐵弗龍之 鉑直線3 .2取代。雖圖2顯示線3 2爲直線’但應明瞭線 3 2普逋具有直徑0 · 0 2 5至0 · 2 5毫米’且事實上 可非常可彎曲及柔順。另—方面’線3 2由於其實心形狀 之橫斷面以及選擇鉑鎢合金’可選擇具有可能需要之各種 不同之剛度,以提供端件2 8之可轉向程度’控制之可撓 性,或可展性,以便置於目標體腔中》 導管10之一第三實施例以簡單之側視圖顯示於圖3 。圖3之導管1〇在所有各方面均與圖1之實施例相同’ 唯線圈2 0及2 6由對應之暫時或可分離連接點3 4連接 至輸送線1 2及1 4。端件2 8宜可由施加D C電流於線 1 2及1 4及地電極5 4 (普通置於體外處)之間加以電 解分離,及導管1 0置於病人之血管系統內,如顯示於圖 5 »圖3所示之電解分離端件2 8之詳細性質更詳細說明 於加格里美等之美專利5,122,136 (1992) ,題爲"^用以電形成栓塞於動脈,靜脈,血管瘤,血管畸 形,及動靜脈癭管中之血管內可電解分離引導線端件', 此列作參考。其他之竃及機械分離方法亦在本發明之構想 內,並另說明於美專利5 ,122,136 (1992) 及美專利5 ,354,295 (1994)號,各同樣列 作參考。 端件2 8由電解熔解連接點3 4而脫離線1 2及1 4 ,連接點3 4相互偏雛,以避免相互接觸,連接點不絕緣 ,且故此暴露於血流中,俾可在連接點之限定位置處由電 I:________、,〆______τ — ί____&F - 一 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) _ B7 五、發明説明(15) 腐蝕掉,及線圈2 0及2 6與輸送線1 2及1 4分離。輸 送線1 2及1 4其後移出,留下端件2 8埋置於血管腔內 由熱形成之栓塞中。 另一實施例顯示於圖4之側視圖中。圖4之實施例之 導管1 0大體與圖2之實施例相同,唯線圈2 0及3 2由 圖3之實施例所述之暫時連接點3 4分別連接至輸送線 1 2 及 1 4。 圖1 一 4之實施例使用於病人之血管系統中*如概要 顯示於圖5。輸送線1 2及1 4之近端連接至一信號或電 源,整個由參考編號3 6標示。在圖5所示之實施例中, 電源3 6概要顯示象徵包含雙極雙投開關3 8,用以選擇 連接D C產生器4 0或A C或RF產生器4 2至輸送線 12及14。開關38可爲任何形狀,包含一固態開關。 電源3 6爲普通電源並可提供電流,用以電解分離,電解 形成栓塞,及/或熱形成栓塞,使用普通電路或較後設計 之電路。故此,有關電源3 6之更詳細情形不加討論。 經濟部中央標準局負工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 導管10使用普通之醫學方法置於病人血管系統內。 端件2 8置於血管瘤,動靜脈畸形,或麇管中,由參考編 號4 4象徵表示,並在圓5之實施例中,顯示如一寬頸之 血管瘤4 4,具有血管瘤開口或頸部約4毫米或更大。本 發明之裝置及方法可用於血管瘤,畸形,及瘿管中,並無 限制,但顯示用於寬頸血管瘤中,此特別有利。 導管1 0通過血管4 8而進入頸部4 6中,以製造由 端件2 8所構成之一線圈髮球或鳥巢。端件28遠較圖1 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 經濟部中央標準局員工消費合作社印製 A7 ____·_B7 五‘、發明説明(16) - 4中簡單顯示所表示者爲長,爲簡單起見,此等圖以縮 短之形狀顯示端件2 8,或至少遠較圖5之比例尺爲大。 端件普通爲4 Omm至3 0 0 Omm長,同時輸送線1 2 及1 4連同微導管2 2可爲1 0 0 0至1 5 0 0mm長。 線圈端件2 8由使用微導管2 2如此輸送至血管瘤4 4中 ,微導管然後自血管瘤4 4中拉出,進入前血管4 8中, 如圖5所示之形狀。故此,輸送線1 2及1 4之一部份置 於前血管4 8中,俾在圖3及4之實施例中,連接點3 4 位於血管瘤4 4或其頸部4 6中或附近。連接點3 4容易 由透射影像技術偵知,因爲鉑之射線不透性遠大於不銹鋼 〇 一第二微導管5 0然後置於血管4 8中,此攜帶一可 分離氣球5 2。氣球5 2置於血管瘤4 8之頸部4 6鄰近 ,並在前血管中暫時膨脹,以大致密封住血管瘤頸部4 6 上,如顯示於圖5之實施例中,或至少大致減少或停止血 液流過頸部4 6。氣球停止血液流過,此使血管瘤4 4內 線圈端件2 8受電加熱時所產生之熱局限於血管瘤4 4內 。在許多(即使非大部份)之情形,如血管4 8中不拘束 血液流過,則熱會被血流帶走,且血栓之形成大爲受阻。 然而,並非恆爲如此,且在一些應用中,無需使用氣球 5 2。預期在其他之應用中,諸如在窄頸之血管瘤,或適 當形之血管癭管或畸形中,可無需使用氣球5 2。 然後由電源3 6通過開關3 8施加交流電流(普通在 2 0 — 4 0伏範圍,4 0 — 6 0毫安)於輸送線1 2及 本紙張尺度適用t國國家標準(CNS ) A4規格(210X297公釐) (請先聞讀背面之注意事項再填寫本貰) 訂 —19^ — 經濟部中央標準局員工消費合作社印製 A7 ____ B7 _____ 五、發明説明(17) 1 4之近端上。置於血管瘤4 4內之鉑端件2 8受加熱, 並轉而加熱血管瘤4 4內之血液,以達成血管瘤內之栓塞 。可使用各種方法來監視血管瘤內之溫度,並加於線圏端 件2 8之設計中。例如,鉑鎢合金之電阻隨溫度變化,此 可由電源內之普通適當電阻偵測器監測。熱能劑量可由溫 度及時間之量度測定。 一旦已達成栓塞,輸送線1 2及14然後由開關3 8 連接至D C產生器4 0。然後由D C產生器4 0施加普通 1毫安(2 · 5伏)之直流電源通過平行之輸送線1 2及 14,使用體電極54作爲相對之DC電極。連接點34 從而受電解熔化,俾現埋置於凝結之血管瘤中之鉑鎢端件 2 8脫離導管10 »導管10及輸送線12及14然後拉 出,氣球52收縮,且同樣拉出。 雖說明圖3及4之實施例使用於圖5之栓塞形成之方 法中,但本發明之任一實施例,尤其是圖1及2之實施例 可用於需要加熱血管內之血液之處。圖6顯示此一應用, 用以治療腫瘤細胞。在圖6之實施例中,導管1 0之線圈 端件2 8置於血管5 6內,此血管伸進例如一血管腫瘤塊 5 8中。血管5 6中之血液在箭頭6 0所示之方向上流。 然後施加A C或R F電流至端件1 〇,使血流6 0接受控 制程度之加熱,俾受加熱之血液然後流至腫瘤塊5 8 »流 至腫瘤塊5 8之血液普通僅可加熱華氏4 2至4 7度,俾 具有治療效果。溫度升高對多種癌症有效,可摧毀腫瘤細 胞。且構想腫瘤細胞可加以標定或處理,俾可特別吸收由 本紙張尺度適用中國國家標準(CNS ) A4規格(210Χ297公釐) ~ " ~ I;__________、.1..______Τ__*____^ρ— * i (讀先閱讀背面之注意事項再填寫本頁) ΑΊ 五、發明説明(18) 熱活化之藥劑,以協助摧毀該細胞’諸如使用熱氰藍’其 作用與光氰藍相似。而且’構想由聯合圖6所示之熱處理 及同時或連續之化學治療或射線’合成治療金瘤塊5 8。 圖7 a及b顯示導管1 0之另外實施例’使用於本發 明之第二方法中。在圖7 a之實施例中,具有鐵弗龍或其 他絕緣塗層之一單個螺旋鉑鎢線圈62由可分離連接點 6 4暫時連接至一單條不銹鋼輸送線6 6,此置於絕緣套 6 8內。絕緣線6 6亦可置於一輸送微導管或其他導管組 件內,如一般所用者。絕緣鉑鎢線圈6 2之末端7 0諸如 由焊接永久連接至未絕緣之鉑銥線圈7 2。線圈7 2普通 較線圈6 2爲短。線圏7 2用作電極,用以接觸血液或身 體組織,以完成至體電極5 4之電路。鉑鎢線圈6 2普通 具有遠較鉑銥線圈7 2或不銹鋼線6 6爲大之電阻,俾大 致所有加熱均在線圈62中。 圖7 b之實施例與有關圖7 a所述者相同,雖暫時可 分離連接點6 4由永久或焊接之連接點7 4取代。 經濟.郅中央標準局員工消費合作社印製 (諳先閱讀背面之注意事頰再填寫本頁) 圖7 a及7b之導管依圖8所示之方式使用。圖8爲 簡單概要圖’此亦顯示一電源3 6,具有一 D C產生器 4 0及A C或RF產生器4 2,連接通過一單極雙投開關 7 6而至輸送線6 6。在圖8之實施例中,AC或RF產 生器4 2之相對電極連接至體電極5 4。 線圈端件2 8包含圖7 a及7 b之實施例中之線圈端 部份6 2及7 2 ’並由微導管2 2置於血管7 8中,然後 由開關7 6連接至產生器42。電流然後施加於輸送線 本!氏張尺度適用中國國家標準(CNS ) A4規格(2ΐϋ)7公楚)一 經濟部中央標準局員工消費合作社印製 A7 B7五’、發明説明(19) 6 6上,電流流至線圈端件2 8,並從而至未絕緣之鉑銥 線圈7 2.,此爲端件2 8之與血液或體液接觸之唯一部份 。端件2 8之受加熱至任何重大程度之部份爲鉑鎢部份線 圈6 2,因其電阻較高。 如使用導管1 0來堵塞血管瘤,則端件2 8之線圈 6 2及7 2二者暴露於血管瘤內,並使用圖7 a所示之實 施例加以電解分離。然而,如導管1 0用以加熱血液,諸 如用於圖6所示之腫瘤治療上,則宜使用圖7 b之實施例 〇 普通精於本藝之人士可作各種更改及修改,而不脫離 本發明之精神及範圍。故此應用瞭圖示之實施例僅爲實例 ,且不應視爲以下申請專利範圍所界定之本發明之限制》 應明瞭本說明中用以敘述本發明及其各實施例之字句 並非其普通所定之意義,而是在本說明中,在結構,材料 ,或作用上具有普通定義範圍以外之特殊定義。故此,在 本說明之範圍中,如可明瞭一元件含有一個以上之意義, 則應明瞭其在申請專利範圍中之使用爲由該說明及字句本 身所支持之所有可能意義。 故此,以下申請專利範圍中之字句或元件在本說明中 視爲不獨包含字面所定之元件之組合,且包含用以由大致 相同之方式執行大致相同之功能,以獲得大致相苘之結果 之所有相等之結構,材料,或行動。 除所申請專利之元件之等效物外,熟悉此技術者目前 及以後所知之明顯代替物亦視爲在所界定的元件的範圍內 1紙張尺度適用中國國家標準(〇«)六4規格(210'乂297公釐) ~ (請先閲讀背面之注意事項再填寫本頁} A7 B7五‘、發明説明(20) 〇故應明瞭申請專利範圍應包括以上特別顯示及說明者 ,在構想上相等者,顯然可代替者,且基本上包含本發明 之基本構想者》 I---」 U------ΐτ-------Φ— - * 一 (請先Μ讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作杜印製 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X 297公釐〉 23
Claims (1)
- 附件2A:第85109034號專利申請案中文申請專利範圍修正本 六、申請專利範圍 —""" 1. 一種形成血管內部熱栓塞的裝^^統內 ,該裝置包含: 至少一伸長,捧性.二.完全絕緣」且未被支器.的...輸.送線 ,具有一第一電阻;及^ 至少一伸長',' 撓性,…完全备緣,未被支撐,且縱向有 彈性的加熱線圈,具有一第二電阻,連:接至輸_送線,第一 電阻低於第二電阻,其中輸送線及加熱線圏二.者-均加電絕 緣,俾可置輸送線及加熱線樹於血管系統肉_,1踰送熱至 血管系統內一預定位置處之血液,大致所有、該..熱钧由流於 加熱線圈內而非輸送線內..之...電.,流.所產生, 因而提供血管內熱治療於血管系統內。 2. 如申請專利範福第1項所述之裝置,其中該輸送線 I 及加熱線圏永久地相互連接》 3. 如申請專利範圍第1項所述之裝置,另包含可與具 有該血管系統之身體接觸且因此與該血管系統在電路中的 ..... 一體電極,且其中,加熱線圏具有近端及末端,近端連接 至輸送線,並且另包含一未絕緣之線圈連接至加熱線圏之 末端,未絕緣之線圈具有一電阻,未絕緣之綠凰.之電.阻.低 於加熱線圈,俾由電流所產生之所有熱均產生於加熱線圏 內,未絕緣.線圈用、伟.血管內電極,以完成通過輸__送_線及迦 熱線圈而至.11L極之電路》 4·如申麗專利.....範麗第3項所述之裝置,其中..羞_輸._送線_ 及加熱線圈永久地相互連接。 5.如申請專利範菌第1項所述之裝置,另包含連接於 丨 ' '_ 、' . — 本紙張尺度逋用中國國家標準(CNS ) A4規格(210X297公釐) ^^-J-1- (請先閱讀背面之注意事項再填寫本頁) 、t.T· # 附件2A:第85109034號專利申請案中文申請專利範圍修正本 六、申請專利範圍 —""" 1. 一種形成血管內部熱栓塞的裝^^統內 ,該裝置包含: 至少一伸長,捧性.二.完全絕緣」且未被支器.的...輸.送線 ,具有一第一電阻;及^ 至少一伸長',' 撓性,…完全备緣,未被支撐,且縱向有 彈性的加熱線圈,具有一第二電阻,連:接至輸_送線,第一 電阻低於第二電阻,其中輸送線及加熱線圏二.者-均加電絕 緣,俾可置輸送線及加熱線樹於血管系統肉_,1踰送熱至 血管系統內一預定位置處之血液,大致所有、該..熱钧由流於 加熱線圈內而非輸送線內..之...電.,流.所產生, 因而提供血管內熱治療於血管系統內。 2. 如申請專利範福第1項所述之裝置,其中該輸送線 I 及加熱線圏永久地相互連接》 3. 如申請專利範圍第1項所述之裝置,另包含可與具 有該血管系統之身體接觸且因此與該血管系統在電路中的 ..... 一體電極,且其中,加熱線圏具有近端及末端,近端連接 至輸送線,並且另包含一未絕緣之線圈連接至加熱線圏之 末端,未絕緣之線圈具有一電阻,未絕緣之綠凰.之電.阻.低 於加熱線圈,俾由電流所產生之所有熱均產生於加熱線圏 內,未絕緣.線圈用、伟.血管內電極,以完成通過輸__送_線及迦 熱線圈而至.11L極之電路》 4·如申麗專利.....範麗第3項所述之裝置,其中..羞_輸._送線_ 及加熱線圈永久地相互連接。 5.如申請專利範菌第1項所述之裝置,另包含連接於 丨 ' '_ 、' . — 本紙張尺度逋用中國國家標準(CNS ) A4規格(210X297公釐) ^^-J-1- (請先閱讀背面之注意事項再填寫本頁) 、t.T· # A8 B8 C8 D8 ..... ......—.......— ......... ........... · - - * * 六、申請專利範圍 該輸送線以用來可控制.地輸_電流至其的電流源。 (請先聞讀背面之注意事項再填寫本頁) 6.—種形成血管內部熱栓塞的裝置,用於血管系統內 ,該裝置包含: 至少一輸送線,具有一第一電阻; 至少一加熱線圈,具有一第二電阻,連接至輸送線’ 第一電阻低於第二電阻,其中輸送線及加熱線圈二者均加 電絕櫞,俾可置輸送線—及40肩u線眉-於管.系疏內,以輸送 '熱至血管系統內一預定位:置j^—流體人大羞! 流於加熱線圈內疏_非輸送線內之電流所產生;及 至吵输_送_務及連―少二加屬線圈,各.具餐二近端及一 末端,加熱線圈之近端各連接至二-翁途蓋之對應一條’二 .^.——-—-—- — 加熱孤、圏.之末端.連—-捺二起.,1提供發電—路通過二輸送 撼之第一條至二加熱.線圈之.第.一.個,至二―加熱線圈之第二 .個,及至二輸送線之第三」_, .辱而提供血管內熱.....治—療於...血管夏剪內。。. 7 .如申請專利範圍第6項所述之裝置,.其中該二加熱 線圈各爲螺旋形,並一起形成一雙螺旋端件。 _ 8. 如申請專利範圍第7項所述之裝置〜其中該輸送線 及加熱線圏永久地相互連接。 .....··· ....................... ................ 9. 如申請專利範圍第6項,所述之裝-置-1其中該二輸送> 線之一爲螺旋形,且二輸HI之另一爲非螺旋形。· 1 Q種微導管,用來選擇性地加熱在血管.系統內的 預定位置處的組織,其中該微導-管-i系_設>置...&該.血羞玉..統.亂、 的該預定位置處,該微-導-管包含藉著該微導管而設置在該 ......—·— ........—— · 本紙張尺度適用中國國家棵準(CNS)A4規格( 210X297公麓) — -2 - A8 B8 C8 _ D8 六、申請專利範圍 預定位置處的至少一.絕緣加熱線圏,該絕緣加熱線..圈電連 -、...... 接至包含在該微導管內且延伸至該血管系統的外部的—絕 緣輸送線’其中電流施加通過後輸送線至該加麗嚴圈,以 加熱該血管系.統內在該頭定位置處的血液,以用熱加熱駔 . * 該血液接觸的組織,然後該微導I及輸.送該血管系統 . " ....... 被抽回, ' 因而選擇性地形成用熱加熱該血管系統內的組織。 11. 如申請專利範圍第10項所述的微導管,其中在一 電路中連接在一起的至少二„絕+緣加熱屬〜圏被設置_在該血管 系統中。 12. 如申請專利範圍第1〇項所述的微導管,其中該加 熱線圈的特徵在於該電流的施加於該輸送線及加熱線圏只 在該加熱線圏內電阻式地產生熱。: 1 3、.如申請專利範圍第1 〇.項所述的微導管,另每含一 體電極,並且其中該加熱線圈包含與該血管系統中的該血 液電接觸的一未絕緣線圈端件電棰,用來完成通過該輸送 線,加熱線圈,.及.線圏端件電極至表該獻管.._系..._統.1電―連通的 敎體.舅極的...電路》 14. 一種微導管,用來治療癌症,其中m覽係設 置在血管系統內的至腫瘤的血流中的預定位置處,該微導 管包含電-連...接於包含在該微導管內且延伸至該血管系統的 —........— ......................... .外部的』絕緣輸送據的至少一絕緣加熱線圈·,其中電流施 . ..... 加通過該輸送線至麗加熟線i以加熱該血管系統內在該預 定位置..處的該血梳,•以用熱加熱下游的該腫瘤, -.......一、- 一 — *——- 本紙張尺度逋用中國國家梂準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁)~ 3 - A8 B8 C8 _ D8 、申請專利祀圍 因而實施該腫瘤的熱治療。 15. 如申請專利範圍第14項所述的微導管,其中至少 二絕緣加熱線圈包含在該血管系統中的一電路中且連接在 一起。 16. 如申請專利範a第14項所述的微導管,其中該電 流的施加於該輸送線及加熱線圈只在該加—熱內電阻式 地產生熱。 - - a 1 7 _如申請專利範圍第1 4項所述的微導管,^包含一 未_緣線圈端件、及一體電極,.並,甚中m迦jg過該 加熱線圈至,,與該血管系統.中…的.黍血流毐-接-觸—的屬未絕緣線 圏端件’以完成通纖.該轍_送線_,__加.....熱屬^_,及未絕緣'線圏. 端件至與該血管系..1霉.連通的.麗簠電極的電路。 18.—種形成血管內部熱栓塞的裝置,用於血管系統 內,該裝置包含: 至少一輸送線,具有一第一電阻;及 至 > —可分離的加熱線圈,具有一第二_電阻,連接至 輸送線,第一鼇姐m二電阻,其伞輸送線及.加熱線圈 二者均加-電絕:緣,傻及·加肩-線&养也—管系統冉 '以輸-送熱..至—血-管-系_統肩-=^^^1處_之|_^二太致所有.. -熱均由流.於ill·熱—暴圈:惠掘—非〜輸^顧肩-之流所產生, 因而提供血管內熱治療於血管系統內》 ‘ Γ9 .如申請專利範圍第,18項所述之裝置,其.. .中.該輸送' 線及加熱線圈暫時相互連_避,#可在被置於該rfn管荔統內 ..... ------—--r------------- - ·.. . 、 - . ΛΤ—選-擇名—分_離。 ;' 本紙張尺度適用中國國家梯準(CNS) A4规格(210x297公釐) (請先閱讀背面之注意事項再填⑨本頁) ..潘 ------、可 81. ~ 4 - 六、申請專利範圍 2 0.如申請專利範圍第19項所述之裝置,其中該輸送 線及加熱線圈可由電解相互分離。 (請先閱讀背面之注意事項再填寫本頁) 21. 如申請專利範圍第19項所述之裝置,其中該輸送 線及加熱線圏可由機械相互分離。 22. 如申請專利範圍第18項所述之裝置,另包含至少 二輸送線及至少二加熱線圈,各..具有一近端及一末端,加 熱線圈之近端各連接至—輸送線之對應一條,二加熱線圈 之末端連接一起,以提供一連續電路通過二軟送線之第一 鋒至二加熱線圈之第一個,至二加熱線圈之第二個,及至 二輸送線之第二條。 r 2 3 .如申請專利範圍第2 1項所述之裝置,其中該二加' 熱線圏各爲螺旋形,並一起形成一雙螺旋端件.。 24.如申請專利範圍第23項所述之裝置其―中該二輸. .,送線及該二加,熱線圈暫時相互,_連_接,_„該_二踰-送、.線__,昀...„每一條 連接於該二加熱線圈中相應的一個i且__暫„睦_ 互._連,.靈的該 輸送線及加熱線圏可在'被置.於該血-管系統冉之年一選―擇_性抵. 互分離。 ' 2 5.如申請專利範圍第23項所述之裝置,其中該二輸. 送線的每一條連接於該二加-熱圈中柑應的一個,且該; 輸送線兵該二加熱鯓.圈可_电.:.電解相..互分離。 26.如申請專利範圍第22項所述之裝置,其中該二輸 送線之一爲螺旋形,且二_送線之另一爲非螺旋形。 ,27,1如申請專利範圍第24項所述之裝置,其中該二輸 送線的每一條連捧於該二加激線圈中相應的一個,且該二 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -5 - 六、申請專利範圍 輸送線及,該二Λ熱線圈馨_時相互連接,並可選擇性相互分 離》 • 28.如申請專利範圍第26項所述之裝置,其中該二輸 送線的每一條連接於該二加熱線圈中相應的一個,且該二 輸送線及該二加熱線圈可由電解相互分.離》 2 9 .如申請專,_.乱.範,IS第1 8項..所述之裝置,另包含可在 具有血管系統及輸送線的電路中m一體·電極,且-其 線圈具有近端及末端,近端連接至輸途線,尊且_另包含一 未絕緣之線圈連接至加熱箍圈_之末端,未絕緣之線圈具有 • .. *·、. 一電阻,未.絕緣之線圈之電阻低於加熱線圈,傕、由電流所 產生之所有熱均產生於加熱線凰內.,未絕緣線圏用作血管 內電極,以完成通過輸送線及加熱線圈而至體電極之電路 .〆 . . 0 3 0 .如申請專利範圍..第蘇述之裝置,其-中該.IJt 線及·.加熱線圈暫時相互連接貌可在血管系 >統肉選擇性分: 離。 31.如申請專利範圍第29項所述之裝置,其中該輸送 線及加熱線圈可由電解相互分離。 丨32 .如申請專利範圍第1 8項版.述之裝置,另-包含連接 至樟送線以用來-可_控亂地ϋ電流連裏_的麗流源。 3:3. —種微導管,用來在血管系統內的預定位置處形 .....、_ 成栓塞,其中該微導.管設置在該血管系統內的該預定位置 處.而.具有至少一絕緣加熱線圏,該絕緣加熱線圈、電連接於 包含在該微導管內一a延伸至該典管系統的外部-的一絕緣輸^ •. - 本紙張尺度逋用中國國家揉準(CNS ) A4規格(210X297公釐) (請先閲讀背面之注意事項再填寫本頁)-----^訂.11-Ί. :零· J— .Γ· · A8 B8 GS D8 六、申請專利範圍 运線I —,使得當電流施加通過至^-加-激-線圏時,該 S - " ' 請 先 閲 % 背 之 注 意 事 項 再 填 寫 頁 血管系統內於該預定位置處的流體被加熱而於該處熱形成 、检塞,然後該輸送鑛.從該加熱線—圈分_,契且該微導管及 輸绘線從該血管系統抽回, 因而使該血管系統內的栓塞的熱形成選擇性地形成。 3 4.如申請專利範圍第33項所述的微導管,其中至少 二絕緣加熱線圏在電路中連接在一起。 35.如申請專利範圍第33項所述的微導管_,其中該電 流'的施加:1該>輸—逡線及-4CL熱,線..圈...只—H加—熱—線..圈.—I電服式 地產生熱。 3 6.如申請專利範:圍第33項所述.的微導管,另包含一 未絕緣線圏端件電極,及一體電極,並且其中電流施加逋 過該加熱線圏至與該血管系統中的該流.體電接鳎的該末絕 緣線圈端件電極以完成通過該輸送線,加熱線圈,及未絕 鋒線圈端件電極至與該血>管_系·農電連通的^體_電極的電路 本紙張尺度逋用中國國家楯準(CNS)A4規格(210x297公釐)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/497,294 US5851206A (en) | 1990-03-13 | 1995-06-30 | Method and apparatus for endovascular thermal thrombosis and thermal cancer treatment |
Publications (1)
Publication Number | Publication Date |
---|---|
TW396029B true TW396029B (en) | 2000-07-01 |
Family
ID=23976267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW085109034A TW396029B (en) | 1995-06-30 | 1996-07-24 | Apparatus for endovascular thermal thrombosis and microcatheter |
Country Status (12)
Country | Link |
---|---|
US (2) | US5851206A (zh) |
EP (1) | EP0750886B1 (zh) |
JP (1) | JP3131386B2 (zh) |
KR (1) | KR100437847B1 (zh) |
AT (1) | ATE236583T1 (zh) |
AU (1) | AU723902B2 (zh) |
CA (1) | CA2179863C (zh) |
DE (1) | DE69627243T2 (zh) |
DK (1) | DK0750886T3 (zh) |
ES (1) | ES2196123T3 (zh) |
NO (1) | NO321938B1 (zh) |
TW (1) | TW396029B (zh) |
Families Citing this family (202)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE42625E1 (en) | 1990-03-13 | 2011-08-16 | The Regents Of The University Of California | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
USRE42756E1 (en) | 1990-03-13 | 2011-09-27 | The Regents Of The University Of California | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
US6083220A (en) | 1990-03-13 | 2000-07-04 | The Regents Of The University Of California | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
US5350397A (en) | 1992-11-13 | 1994-09-27 | Target Therapeutics, Inc. | Axially detachable embolic coil assembly |
US5800453A (en) * | 1993-04-19 | 1998-09-01 | Target Therapeutics, Inc. | Detachable embolic coil assembly using interlocking hooks and slots |
US5690671A (en) * | 1994-12-13 | 1997-11-25 | Micro Interventional Systems, Inc. | Embolic elements and methods and apparatus for their delivery |
US5814062A (en) * | 1994-12-22 | 1998-09-29 | Target Therapeutics, Inc. | Implant delivery assembly with expandable coupling/decoupling mechanism |
US6984240B1 (en) | 1996-10-25 | 2006-01-10 | Target Therapeutics, Inc. | Detachable multidiameter vasoocclusive coil |
US6156061A (en) | 1997-08-29 | 2000-12-05 | Target Therapeutics, Inc. | Fast-detaching electrically insulated implant |
US5984929A (en) | 1997-08-29 | 1999-11-16 | Target Therapeutics, Inc. | Fast detaching electronically isolated implant |
WO1999022651A1 (fr) * | 1997-10-30 | 1999-05-14 | Kaneka Medix Corporation | Dispositif medical pour placer un element in vivo a demeure et methode de placement de cet element |
US6136015A (en) * | 1998-08-25 | 2000-10-24 | Micrus Corporation | Vasoocclusive coil |
US6280441B1 (en) * | 1997-12-15 | 2001-08-28 | Sherwood Services Ag | Apparatus and method for RF lesioning |
US6475227B2 (en) | 1997-12-24 | 2002-11-05 | Scimed Life Systems, Inc. | Vaso-occlusion apparatus having a mechanically expandable detachment joint and a method for using the apparatus |
US6346091B1 (en) | 1998-02-13 | 2002-02-12 | Stephen C. Jacobsen | Detachable coil for aneurysm therapy |
US5935145A (en) | 1998-02-13 | 1999-08-10 | Target Therapeutics, Inc. | Vaso-occlusive device with attached polymeric materials |
US6022369A (en) * | 1998-02-13 | 2000-02-08 | Precision Vascular Systems, Inc. | Wire device with detachable end |
US5941888A (en) | 1998-02-18 | 1999-08-24 | Target Therapeutics, Inc. | Vaso-occlusive member assembly with multiple detaching points |
US6077260A (en) | 1998-02-19 | 2000-06-20 | Target Therapeutics, Inc. | Assembly containing an electrolytically severable joint for endovascular embolic devices |
WO1999062432A1 (en) | 1998-06-04 | 1999-12-09 | New York University | Endovascular thin film devices and methods for treating and preventing stroke |
US6478773B1 (en) * | 1998-12-21 | 2002-11-12 | Micrus Corporation | Apparatus for deployment of micro-coil using a catheter |
FR2785172B1 (fr) * | 1998-11-02 | 2000-12-29 | Assist Publ Hopitaux De Paris | Spire metallique biocompatible et dispositifs de pose de spires d'occlusion vasculaire electrosecables a longueur ajustable |
US6835185B2 (en) | 1998-12-21 | 2004-12-28 | Micrus Corporation | Intravascular device deployment mechanism incorporating mechanical detachment |
ES2299426T3 (es) | 1999-06-02 | 2008-06-01 | Microtransform, Inc. | Dispositivo de oclusion intracorporeo. |
US8048104B2 (en) * | 2000-10-30 | 2011-11-01 | Dendron Gmbh | Device for the implantation of occlusion spirals |
JP2001161838A (ja) * | 1999-12-07 | 2001-06-19 | Radiomed Corp | ワイヤ状癌治療用放射線源部材及びその送給装置 |
US6397850B1 (en) * | 2000-02-09 | 2002-06-04 | Scimed Life Systems Inc | Dual-mode apparatus and method for detection of embolic device detachment |
US7742811B2 (en) * | 2000-03-13 | 2010-06-22 | Onco Stim | Implantable device and method for the electrical treatment of cancer |
US8024048B2 (en) * | 2000-03-13 | 2011-09-20 | Ionix Medical Inc. | Method and device for treating cancer with electrical therapy in conjunction with chemotherapeutic agents and radiation therapy |
US6650943B1 (en) | 2000-04-07 | 2003-11-18 | Advanced Bionics Corporation | Fully implantable neurostimulator for cavernous nerve stimulation as a therapy for erectile dysfunction and other sexual dysfunction |
US6375654B1 (en) * | 2000-05-19 | 2002-04-23 | Cardiofocus, Inc. | Catheter system with working portion radially expandable upon rotation |
US6855154B2 (en) | 2000-08-11 | 2005-02-15 | University Of Louisville Research Foundation, Inc. | Endovascular aneurysm treatment device and method |
US6676657B2 (en) | 2000-12-07 | 2004-01-13 | The United States Of America As Represented By The Department Of Health And Human Services | Endoluminal radiofrequency cauterization system |
US6529775B2 (en) | 2001-01-16 | 2003-03-04 | Alsius Corporation | System and method employing indwelling RF catheter for systemic patient warming by application of dielectric heating |
US6641603B2 (en) | 2001-04-13 | 2003-11-04 | Alsius Corporation | Heat exchange catheter having helically wound reinforcement |
US6709448B2 (en) | 2001-04-13 | 2004-03-23 | Alsius Corporation | Open core heat exchange catheter, system and method |
US6901296B1 (en) | 2001-05-25 | 2005-05-31 | Advanced Bionics Corporation | Methods and systems for direct electrical current stimulation as a therapy for cancer and other neoplastic diseases |
US6885895B1 (en) * | 2001-04-26 | 2005-04-26 | Advanced Bionics Corporation | Methods and systems for electrical and/or drug stimulation as a therapy for erectile dysfunction |
US6901294B1 (en) | 2001-05-25 | 2005-05-31 | Advanced Bionics Corporation | Methods and systems for direct electrical current stimulation as a therapy for prostatic hypertrophy |
US20050240229A1 (en) * | 2001-04-26 | 2005-10-27 | Whitehurst Tood K | Methods and systems for stimulation as a therapy for erectile dysfunction |
US7219799B2 (en) * | 2002-12-31 | 2007-05-22 | Possis Medical, Inc. | Packaging system with oxygen sensor |
US6953473B2 (en) * | 2001-12-20 | 2005-10-11 | Boston Scientific Scimed, Inc. | Detachable device with electrically responsive element |
US20070129761A1 (en) | 2002-04-08 | 2007-06-07 | Ardian, Inc. | Methods for treating heart arrhythmia |
US8774922B2 (en) | 2002-04-08 | 2014-07-08 | Medtronic Ardian Luxembourg S.A.R.L. | Catheter apparatuses having expandable balloons for renal neuromodulation and associated systems and methods |
US7853333B2 (en) | 2002-04-08 | 2010-12-14 | Ardian, Inc. | Methods and apparatus for multi-vessel renal neuromodulation |
US9308043B2 (en) | 2002-04-08 | 2016-04-12 | Medtronic Ardian Luxembourg S.A.R.L. | Methods for monopolar renal neuromodulation |
US20070135875A1 (en) | 2002-04-08 | 2007-06-14 | Ardian, Inc. | Methods and apparatus for thermally-induced renal neuromodulation |
US7756583B2 (en) | 2002-04-08 | 2010-07-13 | Ardian, Inc. | Methods and apparatus for intravascularly-induced neuromodulation |
US7653438B2 (en) | 2002-04-08 | 2010-01-26 | Ardian, Inc. | Methods and apparatus for renal neuromodulation |
US20080213331A1 (en) | 2002-04-08 | 2008-09-04 | Ardian, Inc. | Methods and devices for renal nerve blocking |
US7617005B2 (en) | 2002-04-08 | 2009-11-10 | Ardian, Inc. | Methods and apparatus for thermally-induced renal neuromodulation |
US8774913B2 (en) | 2002-04-08 | 2014-07-08 | Medtronic Ardian Luxembourg S.A.R.L. | Methods and apparatus for intravasculary-induced neuromodulation |
US8145317B2 (en) * | 2002-04-08 | 2012-03-27 | Ardian, Inc. | Methods for renal neuromodulation |
US8145316B2 (en) | 2002-04-08 | 2012-03-27 | Ardian, Inc. | Methods and apparatus for renal neuromodulation |
US8347891B2 (en) | 2002-04-08 | 2013-01-08 | Medtronic Ardian Luxembourg S.A.R.L. | Methods and apparatus for performing a non-continuous circumferential treatment of a body lumen |
US6978174B2 (en) | 2002-04-08 | 2005-12-20 | Ardian, Inc. | Methods and devices for renal nerve blocking |
US20140018880A1 (en) | 2002-04-08 | 2014-01-16 | Medtronic Ardian Luxembourg S.A.R.L. | Methods for monopolar renal neuromodulation |
US8131371B2 (en) * | 2002-04-08 | 2012-03-06 | Ardian, Inc. | Methods and apparatus for monopolar renal neuromodulation |
US7162303B2 (en) | 2002-04-08 | 2007-01-09 | Ardian, Inc. | Renal nerve stimulation method and apparatus for treatment of patients |
US7620451B2 (en) | 2005-12-29 | 2009-11-17 | Ardian, Inc. | Methods and apparatus for pulsed electric field neuromodulation via an intra-to-extravascular approach |
US8150519B2 (en) | 2002-04-08 | 2012-04-03 | Ardian, Inc. | Methods and apparatus for bilateral renal neuromodulation |
US9636174B2 (en) | 2002-04-08 | 2017-05-02 | Medtronic Ardian Luxembourg S.A.R.L. | Methods for therapeutic renal neuromodulation |
US8175711B2 (en) | 2002-04-08 | 2012-05-08 | Ardian, Inc. | Methods for treating a condition or disease associated with cardio-renal function |
US9308044B2 (en) | 2002-04-08 | 2016-04-12 | Medtronic Ardian Luxembourg S.A.R.L. | Methods for therapeutic renal neuromodulation |
WO2004037341A2 (en) | 2002-05-07 | 2004-05-06 | Schroeppel Edward A | Method and device for treating concer with electrical therapy in conjunction with chemotherapeutic agents and radiation therapy |
US6893442B2 (en) | 2002-06-14 | 2005-05-17 | Ablatrics, Inc. | Vacuum coagulation probe for atrial fibrillation treatment |
US7063698B2 (en) * | 2002-06-14 | 2006-06-20 | Ncontact Surgical, Inc. | Vacuum coagulation probes |
US7572257B2 (en) * | 2002-06-14 | 2009-08-11 | Ncontact Surgical, Inc. | Vacuum coagulation and dissection probes |
US8235990B2 (en) | 2002-06-14 | 2012-08-07 | Ncontact Surgical, Inc. | Vacuum coagulation probes |
US9439714B2 (en) | 2003-04-29 | 2016-09-13 | Atricure, Inc. | Vacuum coagulation probes |
US20040082859A1 (en) | 2002-07-01 | 2004-04-29 | Alan Schaer | Method and apparatus employing ultrasound energy to treat body sphincters |
DE10233085B4 (de) | 2002-07-19 | 2014-02-20 | Dendron Gmbh | Stent mit Führungsdraht |
US8425549B2 (en) | 2002-07-23 | 2013-04-23 | Reverse Medical Corporation | Systems and methods for removing obstructive matter from body lumens and treating vascular defects |
US7744583B2 (en) * | 2003-02-03 | 2010-06-29 | Boston Scientific Scimed | Systems and methods of de-endothelialization |
US6979330B2 (en) * | 2003-03-13 | 2005-12-27 | Boston Scientific Scimed, Inc. | System for indirectly ablating tissue using implanted electrode devices |
US7771463B2 (en) | 2003-03-26 | 2010-08-10 | Ton Dai T | Twist-down implant delivery technologies |
US8016869B2 (en) | 2003-03-26 | 2011-09-13 | Biosensors International Group, Ltd. | Guidewire-less stent delivery methods |
WO2004087006A2 (en) | 2003-03-26 | 2004-10-14 | Cardiomind, Inc. | Implant delivery technologies |
CA2525792C (en) | 2003-05-15 | 2015-10-13 | Biomerix Corporation | Reticulated elastomeric matrices, their manufacture and use in implantable devices |
US7569626B2 (en) * | 2003-06-05 | 2009-08-04 | Dfine, Inc. | Polymer composites for biomedical applications and methods of making |
US8043321B2 (en) * | 2003-07-24 | 2011-10-25 | Boston Scientific Scimed, Inc. | Embolic coil |
EP1689482A1 (en) * | 2003-10-28 | 2006-08-16 | Peacock, James C., III | Embolic filter device and related systems and methods |
US7763077B2 (en) | 2003-12-24 | 2010-07-27 | Biomerix Corporation | Repair of spinal annular defects and annulo-nucleoplasty regeneration |
DE102004003265A1 (de) * | 2004-01-21 | 2005-08-11 | Dendron Gmbh | Vorrichtung zur Implantation von elektrisch isolierten Okklusionswendeln |
EP1713401A2 (en) * | 2004-01-30 | 2006-10-25 | NMT Medical, Inc. | Devices, systems, and methods for closure of cardiac openings |
US7651521B2 (en) | 2004-03-02 | 2010-01-26 | Cardiomind, Inc. | Corewire actuated delivery system with fixed distal stent-carrying extension |
US7775087B2 (en) * | 2004-03-16 | 2010-08-17 | Northwestern University | Microchannel forming method and nanotipped dispensing device having a microchannel |
US7720549B2 (en) * | 2004-04-06 | 2010-05-18 | Oncostim, Inc. | Partially implantable system for the electrical treatment of abnormal tissue growth |
AU2011204895B2 (en) * | 2004-08-25 | 2013-09-19 | Microvention, Inc. | Thermal detachment system for implantable devices |
EP1793744B1 (de) | 2004-09-22 | 2008-12-17 | Dendron GmbH | Medizinisches implantat |
DE502004010411D1 (de) | 2004-09-22 | 2009-12-31 | Dendron Gmbh | Vorrichtung zur implantation von mikrowendeln |
US20060074409A1 (en) * | 2004-10-05 | 2006-04-06 | Scimed Life Systems, Inc. | Detachable shaft medical retrieval device and related methods of use |
US7937143B2 (en) | 2004-11-02 | 2011-05-03 | Ardian, Inc. | Methods and apparatus for inducing controlled renal neuromodulation |
US7955344B2 (en) * | 2005-04-01 | 2011-06-07 | Nexgen Medical Systems, Inc. | Thrombus removal system and process |
USRE47376E1 (en) * | 2005-04-01 | 2019-05-07 | Nexgen Medical Systems, Incorporated | Thrombus removal system and process |
US7955345B2 (en) * | 2005-04-01 | 2011-06-07 | Nexgen Medical Systems, Inc. | Thrombus removal system and process |
US8603122B2 (en) * | 2005-04-01 | 2013-12-10 | Nexgen Medical Systems, Incorporated | Thrombus removal system and process |
US7962208B2 (en) | 2005-04-25 | 2011-06-14 | Cardiac Pacemakers, Inc. | Method and apparatus for pacing during revascularization |
DE102005019782A1 (de) * | 2005-04-28 | 2006-11-09 | Dendron Gmbh | Vorrichtung zur Implantation von Okklusionswendeln mit innenliegendem Sicherungsmittel |
US20070055326A1 (en) | 2005-07-21 | 2007-03-08 | Farley Brian E | Method of treating a hollow anatomical structure with a thermal catheter |
US20070073334A1 (en) * | 2005-09-29 | 2007-03-29 | Kamal Ramzipoor | Combined electrolytic and mechanical separation background |
US20070100414A1 (en) | 2005-11-02 | 2007-05-03 | Cardiomind, Inc. | Indirect-release electrolytic implant delivery systems |
US8377056B2 (en) * | 2005-12-29 | 2013-02-19 | Boston Scientific Scimed, Inc. | Method of treating tissue with radio frequency vascular electrode array |
US7699884B2 (en) | 2006-03-22 | 2010-04-20 | Cardiomind, Inc. | Method of stenting with minimal diameter guided delivery systems |
US8777979B2 (en) | 2006-04-17 | 2014-07-15 | Covidien Lp | System and method for mechanically positioning intravascular implants |
CA2649702C (en) | 2006-04-17 | 2014-12-09 | Microtherapeutics, Inc. | System and method for mechanically positioning intravascular implants |
GB0700553D0 (en) * | 2007-01-11 | 2007-02-21 | Emcision Ltd | Vessel sealing device |
US7819865B2 (en) | 2006-09-20 | 2010-10-26 | Covidien Ag | Electrosurgical radio frequency energy transmission medium |
US20080269774A1 (en) | 2006-10-26 | 2008-10-30 | Chestnut Medical Technologies, Inc. | Intracorporeal Grasping Device |
WO2008112436A2 (en) | 2007-03-13 | 2008-09-18 | Micro Therapeutics, Inc. | An implant, a mandrel, and a method of forming an implant |
ES2437619T3 (es) | 2007-03-13 | 2014-01-13 | Covidien Lp | Un implante que incluye un arrollamiento helicoidal y un elemento resistente al estiramiento |
US20100198041A1 (en) * | 2007-04-27 | 2010-08-05 | Christian Steven C | Apparatus and method for positioning and retention of catheter |
ES2627125T3 (es) * | 2007-05-18 | 2017-07-26 | Stryker European Holdings I, Llc | Sistemas de separación de implantes médicos |
US8202269B2 (en) * | 2007-05-25 | 2012-06-19 | The Regents Of The Universtiy Of Michigan | Electrical cautery device |
AU2008279505A1 (en) * | 2007-07-20 | 2009-01-29 | Stryker Corporation | Power supply using time varying signal for electrolytically detaching implantable device |
US20160220265A1 (en) * | 2007-10-12 | 2016-08-04 | NexGen Medical Systems Incorporated, | Thrombus removal system and process |
US11337714B2 (en) | 2007-10-17 | 2022-05-24 | Covidien Lp | Restoring blood flow and clot removal during acute ischemic stroke |
US8088140B2 (en) | 2008-05-19 | 2012-01-03 | Mindframe, Inc. | Blood flow restorative and embolus removal methods |
CN102036619B (zh) | 2007-12-21 | 2014-07-23 | 微排放器公司 | 检测植入物的脱卸的系统 |
JP5366974B2 (ja) | 2007-12-21 | 2013-12-11 | マイクロベンション インコーポレイテッド | 分離可能なインプラントの分離域の位置を決定するシステムおよび方法 |
EP2254485B1 (en) | 2008-02-22 | 2017-08-30 | Covidien LP | Apparatus for flow restoration |
US9409012B2 (en) | 2008-06-19 | 2016-08-09 | Cardiac Pacemakers, Inc. | Pacemaker integrated with vascular intervention catheter |
EP2331196A1 (en) * | 2008-06-19 | 2011-06-15 | Cardiac Pacemakers, Inc. | Pacing catheter with expandable distal end |
US8244352B2 (en) | 2008-06-19 | 2012-08-14 | Cardiac Pacemakers, Inc. | Pacing catheter releasing conductive liquid |
US8639357B2 (en) | 2008-06-19 | 2014-01-28 | Cardiac Pacemakers, Inc. | Pacing catheter with stent electrode |
US8457738B2 (en) | 2008-06-19 | 2013-06-04 | Cardiac Pacemakers, Inc. | Pacing catheter for access to multiple vessels |
US9037235B2 (en) | 2008-06-19 | 2015-05-19 | Cardiac Pacemakers, Inc. | Pacing catheter with expandable distal end |
US9089700B2 (en) | 2008-08-11 | 2015-07-28 | Cibiem, Inc. | Systems and methods for treating dyspnea, including via electrical afferent signal blocking |
US9597145B2 (en) * | 2008-08-20 | 2017-03-21 | Prostacare Pty Ltd | Non-thermal ablation system for treating tissue |
CN102186426B (zh) | 2008-10-13 | 2013-05-15 | 斯瑞克公司 | 血管闭塞线圈输送系统 |
EP2346431A4 (en) * | 2008-11-03 | 2012-10-03 | Univ Ben Gurion | METHOD AND DEVICE FOR THROMBUS RESOLUTION / THROMBECTOMY THROUGH AN ELECTRODE CATHETER DEVICE |
US8652129B2 (en) | 2008-12-31 | 2014-02-18 | Medtronic Ardian Luxembourg S.A.R.L. | Apparatus, systems, and methods for achieving intravascular, thermally-induced renal neuromodulation |
EP2376011B1 (en) | 2009-01-09 | 2019-07-03 | ReCor Medical, Inc. | Apparatus for treatment of mitral valve insufficiency |
WO2010104955A2 (en) * | 2009-03-13 | 2010-09-16 | Boston Scientific Scimed, Inc. | Electrical contact for occlusive device delivery system |
US20100256666A1 (en) * | 2009-04-06 | 2010-10-07 | Boston Scientific Scimed, Inc. | Delivery wire for occlusive device delivery system |
WO2010120694A1 (en) * | 2009-04-16 | 2010-10-21 | Boston Scientific Scimed, Inc. | Electrical contact for occlusive device delivery system |
US9314250B2 (en) | 2009-04-16 | 2016-04-19 | Stryker Corporation | Electrical contact for occlusive device delivery system |
US20100268251A1 (en) * | 2009-04-16 | 2010-10-21 | Boston Scientific Scimed, Inc. | Delivery wire for occlusive device delivery system and method of manufacture |
US8657870B2 (en) | 2009-06-26 | 2014-02-25 | Biosensors International Group, Ltd. | Implant delivery apparatus and methods with electrolytic release |
WO2011062844A1 (en) * | 2009-11-18 | 2011-05-26 | Boston Scientific Scimed, Inc. | Delivery wire assembly for occlusive device delivery system |
AU2011240927B2 (en) | 2010-04-14 | 2015-07-16 | Microvention, Inc. | Implant delivery device |
US9039749B2 (en) | 2010-10-01 | 2015-05-26 | Covidien Lp | Methods and apparatuses for flow restoration and implanting members in the human body |
CN103313671B (zh) | 2010-10-25 | 2017-06-06 | 美敦力Af卢森堡有限责任公司 | 用于神经调节治疗的估算及反馈的装置、系统及方法 |
CA2817552C (en) * | 2010-11-16 | 2020-03-24 | Tva Medical, Inc. | Devices and methods for forming a fistula |
US10398444B2 (en) | 2011-03-30 | 2019-09-03 | Noha, Llc | Advanced endovascular clip and method of using same |
US10028745B2 (en) | 2011-03-30 | 2018-07-24 | Noha, Llc | Advanced endovascular clip and method of using same |
US9050089B2 (en) | 2011-05-31 | 2015-06-09 | Covidien Lp | Electrosurgical apparatus with tissue site sensing and feedback control |
US11311332B2 (en) | 2011-08-23 | 2022-04-26 | Magneto Thrombectomy Solutions Ltd. | Thrombectomy devices |
EP2755574A1 (en) * | 2011-09-13 | 2014-07-23 | Stryker Corporation | Vaso-occlusive device |
US9579104B2 (en) | 2011-11-30 | 2017-02-28 | Covidien Lp | Positioning and detaching implants |
US9011480B2 (en) | 2012-01-20 | 2015-04-21 | Covidien Lp | Aneurysm treatment coils |
US8919035B2 (en) | 2012-01-27 | 2014-12-30 | Medical Energetics Ltd | Agricultural applications of a double helix conductor |
US9693816B2 (en) * | 2012-01-30 | 2017-07-04 | Covidien Lp | Electrosurgical apparatus with integrated energy sensing at tissue site |
US8652023B2 (en) * | 2012-02-13 | 2014-02-18 | Lifewave, Inc. | Health applications of a double helix conductor |
US9597018B2 (en) | 2012-03-08 | 2017-03-21 | Medtronic Ardian Luxembourg S.A.R.L. | Biomarker sampling in the context of neuromodulation devices, systems, and methods |
AU2013230781B2 (en) | 2012-03-08 | 2015-12-03 | Medtronic Af Luxembourg S.A.R.L. | Ovarian neuromodulation and associated systems and methods |
US9687245B2 (en) | 2012-03-23 | 2017-06-27 | Covidien Lp | Occlusive devices and methods of use |
CN104519817B (zh) | 2012-04-24 | 2017-11-10 | 西比姆公司 | 用于颈动脉体摘除的血管内导管和方法 |
US8749333B2 (en) | 2012-04-26 | 2014-06-10 | Lifewave, Inc. | System configuration using a double helix conductor |
WO2013181667A1 (en) | 2012-06-01 | 2013-12-05 | Cibiem, Inc. | Percutaneous methods and devices for carotid body ablation |
WO2013181660A1 (en) | 2012-06-01 | 2013-12-05 | Cibiem, Inc. | Methods and devices for cryogenic carotid body ablation |
US10028786B2 (en) | 2012-06-29 | 2018-07-24 | Covidien Lp | Helical connector assembly |
US9955946B2 (en) | 2014-03-12 | 2018-05-01 | Cibiem, Inc. | Carotid body ablation with a transvenous ultrasound imaging and ablation catheter |
EP2866669A4 (en) | 2012-06-30 | 2016-04-20 | Cibiem Inc | ABLATION OF CAROTID BODY VIA DIRECTED ENERGY |
US9326774B2 (en) | 2012-08-03 | 2016-05-03 | Covidien Lp | Device for implantation of medical devices |
US9649146B2 (en) | 2012-10-02 | 2017-05-16 | Covidien Lp | Electro-thermal device |
US20140110296A1 (en) | 2012-10-19 | 2014-04-24 | Medtronic Ardian Luxembourg S.A.R.L. | Packaging for Catheter Treatment Devices and Associated Devices, Systems, and Methods |
US9566071B2 (en) * | 2013-04-11 | 2017-02-14 | Blockade Medical, LLC | Systems and devices for cerebral aneurysm repair |
US10076399B2 (en) | 2013-09-13 | 2018-09-18 | Covidien Lp | Endovascular device engagement |
US9636518B2 (en) | 2013-10-28 | 2017-05-02 | Medical Energetics Ltd. | Nested double helix conductors |
US9724531B2 (en) | 2013-10-28 | 2017-08-08 | Medical Energetics Ltd. | Double helix conductor with light emitting fluids for producing photobiomodulation effects in living organisms |
US20150148795A1 (en) * | 2013-11-26 | 2015-05-28 | Boston Scientific Scimed, Inc. | Radio frequency ablation coil |
US9861830B1 (en) * | 2013-12-13 | 2018-01-09 | Medical Energetics Ltd. | Double helix conductor with winding around core |
WO2015095806A2 (en) | 2013-12-20 | 2015-06-25 | Microvention, Inc. | Device delivery system |
CN104771822B (zh) * | 2014-01-10 | 2020-09-15 | 库克医学技术有限责任公司 | 能量引发栓塞系统 |
WO2015132315A1 (en) | 2014-03-05 | 2015-09-11 | Medical Energetics Ltd. | Double helix conductor with eight connectors and counter-rotating fields |
US9980766B1 (en) | 2014-03-28 | 2018-05-29 | Medtronic Ardian Luxembourg S.A.R.L. | Methods and systems for renal neuromodulation |
US10194980B1 (en) | 2014-03-28 | 2019-02-05 | Medtronic Ardian Luxembourg S.A.R.L. | Methods for catheter-based renal neuromodulation |
US10194979B1 (en) | 2014-03-28 | 2019-02-05 | Medtronic Ardian Luxembourg S.A.R.L. | Methods for catheter-based renal neuromodulation |
US9463331B2 (en) | 2014-04-07 | 2016-10-11 | Medical Energetics Ltd | Using a double helix conductor to treat neuropathic disorders |
AU2015201169A1 (en) | 2014-04-10 | 2015-10-29 | Medical Energetics Ltd. | Double helix conductor with counter-rotating fields |
WO2015157768A1 (en) | 2014-04-11 | 2015-10-15 | Microvention, Inc. | Implant delivery system |
US9713475B2 (en) | 2014-04-18 | 2017-07-25 | Covidien Lp | Embolic medical devices |
US9814466B2 (en) | 2014-08-08 | 2017-11-14 | Covidien Lp | Electrolytic and mechanical detachment for implant delivery systems |
US9808256B2 (en) | 2014-08-08 | 2017-11-07 | Covidien Lp | Electrolytic detachment elements for implant delivery systems |
US10083786B2 (en) | 2015-02-20 | 2018-09-25 | Medical Energetics Ltd. | Dual double helix conductors with light sources |
US9717503B2 (en) | 2015-05-11 | 2017-08-01 | Covidien Lp | Electrolytic detachment for implant delivery systems |
WO2016198265A1 (en) | 2015-06-09 | 2016-12-15 | Medical Energetics Ltd. | Dual double helix conductors used in agriculture |
CA2996912C (en) | 2015-09-01 | 2024-06-04 | Medical Energetics Ltd. | Rotating dual double helix conductors |
GB2545484A (en) * | 2015-12-18 | 2017-06-21 | Cook Medical Technologies Llc | Electrochemical protection of conducting circuit in the body of a patient |
FR3047163A1 (fr) * | 2016-02-01 | 2017-08-04 | Miravas | Dispositif pour le traitement thermique de vaisseaux, et procede associe |
US10159523B2 (en) | 2016-02-09 | 2018-12-25 | Covidien Lp | Bipolar plasma catheter |
US10828037B2 (en) | 2016-06-27 | 2020-11-10 | Covidien Lp | Electrolytic detachment with fluid electrical connection |
US10828039B2 (en) | 2016-06-27 | 2020-11-10 | Covidien Lp | Electrolytic detachment for implantable devices |
US11051822B2 (en) | 2016-06-28 | 2021-07-06 | Covidien Lp | Implant detachment with thermal activation |
US12029475B2 (en) | 2017-03-22 | 2024-07-09 | Magneto Thrombectomy Solutions Ltd. | Thrombectomy using both electrostatic and suction forces |
US10874402B2 (en) * | 2017-10-10 | 2020-12-29 | Boston Scientific Scimed, Inc. | Detachable RF energized occlusive device |
EP3713507B1 (en) | 2017-11-23 | 2023-08-02 | Magneto Thrombectomy Solutions Ltd. | Tubular thrombectomy devices |
WO2019104326A1 (en) | 2017-11-27 | 2019-05-31 | Prostacare Pty Ltd | An apparatus and a method for the treatment of a prostatic disease |
WO2019168949A1 (en) | 2018-02-28 | 2019-09-06 | Prostacare Pty Ltd | System for managing high impedance changes in a non-thermal ablation system for bph |
US12114863B2 (en) | 2018-12-05 | 2024-10-15 | Microvention, Inc. | Implant delivery system |
JP2022541194A (ja) * | 2019-07-16 | 2022-09-22 | マイクロベンション インコーポレイテッド | 形状特性を向上させた医療装置 |
Family Cites Families (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2839049A (en) * | 1954-03-25 | 1958-06-17 | Kenneth S Maclean | Abrasive cytologic brush |
US3789841A (en) * | 1971-09-15 | 1974-02-05 | Becton Dickinson Co | Disposable guide wire |
US3840016A (en) * | 1972-03-10 | 1974-10-08 | H Lindemann | Electrocoagulation-bougie for the intrauterine tube sterilization |
US3996938A (en) * | 1975-07-10 | 1976-12-14 | Clark Iii William T | Expanding mesh catheter |
US4030508A (en) * | 1976-02-04 | 1977-06-21 | Vitatron Medical B.V. | Low output electrode for cardiac pacing |
US4114603A (en) * | 1976-08-06 | 1978-09-19 | Wilkinson Harold A | Intracranial pressure monitoring catheter |
EP0058708B1 (en) * | 1980-09-03 | 1985-05-08 | The University Court Of The University Of Edinburgh | Therapeutic device |
US4585013A (en) * | 1981-04-20 | 1986-04-29 | Cordis Corporation | Lumenless pervenous electrical lead and method of implantation |
US4411648A (en) * | 1981-06-11 | 1983-10-25 | Board Of Regents, The University Of Texas System | Iontophoretic catheter device |
JPS598937A (ja) * | 1982-07-08 | 1984-01-18 | 塩野義製薬株式会社 | 微小電極およびその製造方法 |
US4545390A (en) * | 1982-09-22 | 1985-10-08 | C. R. Bard, Inc. | Steerable guide wire for balloon dilatation procedure |
US4512338A (en) * | 1983-01-25 | 1985-04-23 | Balko Alexander B | Process for restoring patency to body vessels |
US4554929A (en) * | 1983-07-13 | 1985-11-26 | Advanced Cardiovascular Systems, Inc. | Catheter guide wire with short spring tip and method of using the same |
US4538622A (en) * | 1983-11-10 | 1985-09-03 | Advanced Cardiovascular Systems, Inc. | Guide wire for catheters |
US4567900A (en) * | 1984-06-04 | 1986-02-04 | Moore J Paul | Internal deployable defibrillator electrode |
US5019075A (en) * | 1984-10-24 | 1991-05-28 | The Beth Israel Hospital | Method and apparatus for angioplasty |
US4619274A (en) * | 1985-04-18 | 1986-10-28 | Advanced Cardiovascular Systems, Inc. | Torsional guide wire with attenuated diameter |
US4613324A (en) * | 1985-06-17 | 1986-09-23 | Ghajar Jamshid B G | Method and apparatus for guiding catheter into ventricular system of human brain |
US4660571A (en) * | 1985-07-18 | 1987-04-28 | Cordis Corporation | Percutaneous lead having radially adjustable electrode |
US4748986A (en) * | 1985-11-26 | 1988-06-07 | Advanced Cardiovascular Systems, Inc. | Floppy guide wire with opaque tip |
US4735201A (en) * | 1986-01-30 | 1988-04-05 | The Beth Israel Hospital Association | Optical fiber with detachable metallic tip for intravascular laser coagulation of arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
US4723556A (en) * | 1986-04-14 | 1988-02-09 | Cordis Corporation | Intracranial ventricular catheter assembly |
US4739768B2 (en) * | 1986-06-02 | 1995-10-24 | Target Therapeutics Inc | Catheter for guide-wire tracking |
US4825880A (en) * | 1987-06-19 | 1989-05-02 | The Regents Of The University Of California | Implantable helical coil microwave antenna |
US4820298A (en) * | 1987-11-20 | 1989-04-11 | Leveen Eric G | Internal vascular prosthesis |
US4884579A (en) * | 1988-04-18 | 1989-12-05 | Target Therapeutics | Catheter guide wire |
US4994069A (en) * | 1988-11-02 | 1991-02-19 | Target Therapeutics | Vaso-occlusion coil and method |
US5354295A (en) * | 1990-03-13 | 1994-10-11 | Target Therapeutics, Inc. | In an endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
US5122136A (en) * | 1990-03-13 | 1992-06-16 | The Regents Of The University Of California | Endovascular electrolytically detachable guidewire tip for the electroformation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas |
US5108407A (en) * | 1990-06-08 | 1992-04-28 | Rush-Presbyterian St. Luke's Medical Center | Method and apparatus for placement of an embolic coil |
US5178618A (en) * | 1991-01-16 | 1993-01-12 | Brigham And Womens Hospital | Method and device for recanalization of a body passageway |
US5542928A (en) * | 1991-05-17 | 1996-08-06 | Innerdyne, Inc. | Method and device for thermal ablation having improved heat transfer |
US5217484A (en) * | 1991-06-07 | 1993-06-08 | Marks Michael P | Retractable-wire catheter device and method |
US5226911A (en) * | 1991-10-02 | 1993-07-13 | Target Therapeutics | Vasoocclusion coil with attached fibrous element(s) |
US5246014A (en) * | 1991-11-08 | 1993-09-21 | Medtronic, Inc. | Implantable lead system |
US5486208A (en) * | 1993-02-10 | 1996-01-23 | Ginsburg; Robert | Method and apparatus for controlling a patient's body temperature by in situ blood temperature modification |
-
1995
- 1995-06-30 US US08/497,294 patent/US5851206A/en not_active Expired - Lifetime
- 1995-09-15 US US08/528,915 patent/US5919187A/en not_active Expired - Lifetime
-
1996
- 1996-06-25 CA CA002179863A patent/CA2179863C/en not_active Expired - Fee Related
- 1996-06-26 ES ES96304695T patent/ES2196123T3/es not_active Expired - Lifetime
- 1996-06-26 DK DK96304695T patent/DK0750886T3/da active
- 1996-06-26 AT AT96304695T patent/ATE236583T1/de not_active IP Right Cessation
- 1996-06-26 EP EP96304695A patent/EP0750886B1/en not_active Expired - Lifetime
- 1996-06-26 DE DE69627243T patent/DE69627243T2/de not_active Expired - Lifetime
- 1996-06-28 AU AU56244/96A patent/AU723902B2/en not_active Ceased
- 1996-06-28 NO NO19962745A patent/NO321938B1/no not_active IP Right Cessation
- 1996-06-29 KR KR1019960025711A patent/KR100437847B1/ko not_active IP Right Cessation
- 1996-07-01 JP JP08171373A patent/JP3131386B2/ja not_active Expired - Fee Related
- 1996-07-24 TW TW085109034A patent/TW396029B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2179863C (en) | 2001-09-11 |
EP0750886B1 (en) | 2003-04-09 |
NO321938B1 (no) | 2006-07-24 |
DE69627243T2 (de) | 2004-01-29 |
JP3131386B2 (ja) | 2001-01-31 |
KR970000269A (ko) | 1997-01-21 |
KR100437847B1 (ko) | 2004-10-22 |
CA2179863A1 (en) | 1996-12-31 |
EP0750886A1 (en) | 1997-01-02 |
NO962745L (no) | 1997-01-02 |
ES2196123T3 (es) | 2003-12-16 |
US5919187A (en) | 1999-07-06 |
ATE236583T1 (de) | 2003-04-15 |
DK0750886T3 (da) | 2003-08-04 |
DE69627243D1 (de) | 2003-05-15 |
AU5624496A (en) | 1997-01-09 |
US5851206A (en) | 1998-12-22 |
JPH0998981A (ja) | 1997-04-15 |
NO962745D0 (no) | 1996-06-28 |
AU723902B2 (en) | 2000-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TW396029B (en) | Apparatus for endovascular thermal thrombosis and microcatheter | |
JP3557386B2 (ja) | 導電性体液内で体腔を閉塞するための電解分離可能なワイヤ先端部分 | |
JP2501389B2 (ja) | 血管内の電解分離可能なガイドワイヤ―・チップ | |
CN103356261B (zh) | 栓塞线圈拆卸机构 | |
JP5372785B2 (ja) | カテーテルを使用して治療用デバイスを配置する装置および方法 | |
US5947962A (en) | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries veins aneurysms vascular malformations and arteriovenous fistulas | |
US6019757A (en) | Endoluminal electro-occlusion detection apparatus and method | |
JP3871070B2 (ja) | 管内閉塞装置 | |
USRE42756E1 (en) | Endovascular electrolytically detachable wire and tip for the formation of thrombus in arteries, veins, aneurysms, vascular malformations and arteriovenous fistulas | |
JPH08252323A (ja) | 哺乳動物体内に設置される離脱可能用具のための無ハンダの電気分解的分離可能な接合部 | |
JPH08322941A (ja) | 電気分解的に離脱可能なインプラントのための送達カテーテル | |
JP2001503308A (ja) | 高周波誘導加熱を利用した塞栓術用装置 | |
KR20160034221A (ko) | 테이퍼 형성된 코어와이어 및 단일 루프 융해 결합해제를 갖는 혈관구조 폐색 장치 결합해제 시스템 | |
KR100973307B1 (ko) | 바이 폴라 전극 방식의 가이드 와이어 및 이를 이용한카테터 시스템 | |
CN104771822A (zh) | 能量引发栓塞系统 | |
Ji et al. | Endovascular electrocoagulation: concept, technique, and experimental results. | |
NO322061B1 (no) | Apparat for dannelse av en tetning inne i et hulrom |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GD4A | Issue of patent certificate for granted invention patent | ||
MM4A | Annulment or lapse of patent due to non-payment of fees |