JP5877162B2 - バルーンカテーテル及び通電システム - Google Patents
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- 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
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320725—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with radially expandable cutting or abrading elements
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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
- A61B2017/22051—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22061—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation for spreading elements apart
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- A—HUMAN NECESSITIES
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
- A61B2018/0022—Balloons
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- A—HUMAN NECESSITIES
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- A61B2018/00279—Anchoring means for temporary attachment of a device to tissue deployable
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- A—HUMAN NECESSITIES
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- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
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- A—HUMAN NECESSITIES
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00595—Cauterization
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- 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
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- A61M2025/1043—Balloon catheters with special features or adapted for special applications
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Description
Claims (13)
- シャフト本体(14)の先端側にバルーン(20)を備えたバルーンカテーテル(10、10a〜10c)であって、
前記バルーン(20)の先端から基端の間の外面に設けられ、少なくとも前記バルーン(20)が拡張した状態で該バルーン(20)の外面から外方に略垂直方向に突出する突出部材(32、34、42、44、46、48、50、52)と、
前記突出部材(32、34、42、44、46、48、50、52)の突出方向で先端部に設けられ、生体組織にエネルギを伝達可能な電極(22、24)と、
を備えることを特徴とするバルーンカテーテル(10、10a〜10c)。 - 請求項1記載のバルーンカテーテル(10、10a〜10c)において、
前記突出部材(32、34、42、44、46、48、50、52)は、前記バルーン(20)の外面に固着され、
さらに前記バルーンカテーテル(10、10a〜10c)は、前記バルーン(20)の外面及び前記突出部材(32、34、42、44、46、48、50、52)の表面に沿って配設され、前記電極(22、24)に通電可能な配線(E1b、E2b)を備えることを特徴とするバルーンカテーテル(10、10a〜10c)。 - 請求項1又は2記載のバルーンカテーテル(10、10a〜10c)において、
前記バルーンカテーテル(10、10a〜10c)は、前記バルーン(20)を折り畳んだ状態で生体内に挿入されるものであり、
前記バルーン(20)は、前記折り畳んだ状態で、前記突出部材(32、34、42、44、46、48、50、52)及び前記電極(22、24)を囲繞するように収納することを特徴とするバルーンカテーテル(10、10a〜10c)。 - 請求項1〜3のいずれか1項に記載のバルーンカテーテル(10、10a〜10c)において、
前記突出部材(32、34、42、44、46、48、50、52)は、絶縁性を有することを特徴とするバルーンカテーテル(10、10a〜10c)。 - 請求項1〜4のいずれか1項に記載のバルーンカテーテル(10、10a〜10c)において、
前記突出部材(32、34、42、44、46、48、50、52)は、前記電極(22、24)を先頭として血管壁内へと突き刺されることで、前記電極(22、24)を前記血管壁内まで送達可能な刃であることを特徴とするバルーンカテーテル(10、10a〜10c)。 - 請求項1〜4のいずれか1項に記載のバルーンカテーテル(10、10a〜10c)において、
前記突出部材(32、34、42、44、46、48、50、52)は、前記電極(22、24)を先頭として血管壁に対して突き立てられた際に、前記血管壁の内面との当接部分を外面側へと押し込むことで該血管壁を変形させ、前記電極(22、24)を所望位置に送達可能な押込部材であることを特徴とするバルーンカテーテル(10、10a〜10c)。 - 請求項1〜6のいずれか1項に記載のバルーンカテーテル(10、10a〜10c)において、
前記突出部材(32、34、42、44、46、48、50、52)は、少なくとも一対設けられ、該一対の突出部材(32、34、42、44、46、48、50、52)にそれぞれ設置された前記電極(22、24)同士が1組のバイポーラ型電極を構成することを特徴とするバルーンカテーテル(10、10a〜10c)。 - 請求項1〜7のいずれか1項に記載のバルーンカテーテル(10a)において、
前記突出部材(42、44)は、前記バルーン(20)の軸線方向に沿って複数列設けられると共に、前記バルーン(20)の周方向での位相が各列でずれて配置されることを特徴とするバルーンカテーテル(10a)。 - 請求項1〜7のいずれか1項に記載のバルーンカテーテル(10c)において、
前記突出部材(50、52)は、前記バルーン(20)の外面に螺旋状に配設されることを特徴とするバルーンカテーテル(10c)。 - 請求項1〜9のいずれか1項に記載のバルーンカテーテル(10、10a〜10c)において、
前記突出部材(32、34、42、44、46、48、50、52)は、薄板形状又は針形状であることを特徴とするバルーンカテーテル(10、10a〜10c)。 - 請求項1〜10のいずれか1項に記載のバルーンカテーテル(10、10a〜10c)において、
前記エネルギは、高周波であることを特徴とするバルーンカテーテル(10、10a〜10c)。 - 請求項1〜11のいずれか1項に記載のバルーンカテーテル(10、10a〜10c)において、
前記生体組織は、腎動脈の周囲にある神経であることを特徴とするバルーンカテーテル(10、10a〜10c)。 - シャフト本体(14)の先端側にバルーン(20)が設けられ、生体組織にエネルギを伝達可能な電極(22、24)が前記バルーン(20)の外面側に設けられたバルーンカテーテル(10、10a〜10c)と、前記電極(22、24)に高周波電流を供給する電源(30)とを備える通電システム(12)であって、
前記バルーン(20)の先端から基端の間の外面には、少なくとも該バルーン(20)が拡張した状態で前記外面から外方に略垂直方向に突出する突出部材(32、34、42、44、46、48、50、52)が設けられ、
前記電極(22、24)は、前記突出部材(32、34、42、44、46、48、50、52)の突出方向で先端部に設置されることを特徴とする通電システム(12)。
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JP2012549749A JP5877162B2 (ja) | 2010-12-21 | 2011-12-14 | バルーンカテーテル及び通電システム |
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JP2010283913 | 2010-12-21 | ||
JP2010283913 | 2010-12-21 | ||
JP2012549749A JP5877162B2 (ja) | 2010-12-21 | 2011-12-14 | バルーンカテーテル及び通電システム |
PCT/JP2011/078911 WO2012086492A1 (ja) | 2010-12-21 | 2011-12-14 | バルーンカテーテル及び通電システム |
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JPWO2012086492A1 JPWO2012086492A1 (ja) | 2014-05-22 |
JP5877162B2 true JP5877162B2 (ja) | 2016-03-02 |
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US (2) | US20130296853A1 (ja) |
EP (1) | EP2656807A4 (ja) |
JP (1) | JP5877162B2 (ja) |
CN (1) | CN203354638U (ja) |
WO (1) | WO2012086492A1 (ja) |
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- 2011-12-14 JP JP2012549749A patent/JP5877162B2/ja active Active
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CN203354638U (zh) | 2013-12-25 |
WO2012086492A1 (ja) | 2012-06-28 |
US9463065B2 (en) | 2016-10-11 |
US20130296853A1 (en) | 2013-11-07 |
US20160022359A1 (en) | 2016-01-28 |
EP2656807A1 (en) | 2013-10-30 |
JPWO2012086492A1 (ja) | 2014-05-22 |
EP2656807A4 (en) | 2016-08-31 |
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