JP2016511076A - 可撓性rf焼灼針 - Google Patents
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Abstract
Description
[0001]本出願は、「Flexible RF Ablation Needle(可撓性RF焼灼針)」という名称で2013年3月14日に出願された米国仮特許出願第61/785888号の優先権および利益を主張し、その開示の全体が、あらゆる目的のためにその全体を明記しているかのように、ここに参照によって組み込まれている。
気道に挿入されるように構成されるカテーテルと、
カテーテルの遠位端に取り付けられ、中空であり、気道壁を貫いて穿孔するように構成される穿孔先端を備える第1の電極と、
第1の電極内で移動可能に受容され、第1の伸長形態を形成するために第1の電極の遠位端から伸長可能である第2の電極と、
カテーテルの近位端に取り付けられ、第2の電極を第1の電極から伸長するように構成される第2の起動トグルを備えるハンドルと、
第1の電極と導通する第1の電導線、および、第2の電極と導通する第2の電導線であって、電力の供給源に接続可能である第1の電導線および第2の電導線とを備える。
カテーテルを患者の気道に挿入するステップであって、カテーテルの遠位端が、第1の電極と、第1の電極内で摺動可能に受容され、そこから伸長可能に構成される第2の電極とを備えるステップと、
治療される肺組織の部位に近接する気道にカテーテルを誘導するステップと、
治療される肺組織の部位またはその近傍に第1の電極が位置するように、気道を第1の電極で穿孔するステップと、
第2の電極を治療される肺組織の部位へと伸長させるステップと、
治療される肺組織の部位に治療量のエネルギーを送達するように構成される電源を起動するステップであって、電源が、第1の電極に接続される第1の電導線と、第2の電極に接続される第2の電導線とを介して接続されるステップと、
エネルギーを治療される肺組織の部位に送達するステップとを含む。
Claims (14)
- 肺組織の部位にエネルギーを送達するための装置であって、
気道に挿入されるように構成されるカテーテル(101)と、
前記カテーテルの遠位端に取り付けられ、中空であり、気道壁を貫いて穿孔するように構成される穿孔先端を備える第1の可撓性電極(103)と、
前記第1の電極内で移動可能に受容され、第1の伸長形態を形成するために前記第1の電極から伸長可能である第2の電極(105)と、
前記第1の電極に導通する第1の電導線(107)、および前記第2の電極に導通する第2の電導線(108)であって、電力の供給源(112)に接続可能である第1の電導線(107)および第2の電導線(108)と
を備え、
前記第2の電極が、前記遠位先端から近位側に伸長して前記第1の電極の長手軸線を囲繞する、装置。 - 前記カテーテルの近位端に取り付けられるハンドル(120)をさらに備え、
前記ハンドルが、前記第2の電極を前記第1の電極から伸長させるように構成される第2の起動トグル(122)を備える、請求項1に記載の装置。 - 前記第2の電極が、ある角度(A1)だけ前記第1の電極の中心線(CL)からオフセットされ、螺旋形状をなして前記第1の電極から伸長可能である、請求項1に記載の装置。
- 前記第2の電極が、前記第1の電極の開口を通って前記第1の電極内から伸長する、請求項1に記載の装置。
- 前記カテーテルが、側方超音波プローブを備える気管支鏡(200)に挿入可能であるような寸法とされる、請求項1に記載の装置。
- 前記第2の電極が、前記第1の伸長形態であるときにコイルを形成する、請求項1に記載の装置。
- 前記第2の電極が、少なくとも一部において形状記憶材料から構成され、前記形状記憶材料は、より低い第1の温度でマルテンサイト構造を有し、体温よりも高い第2の温度でオーステナイト構造を有し、かつ、
前記第2の電極が、前記マルテンサイト構造にある間は第1の直線形状になり、前記オーステナイト構造にある間は屈曲形状またはコイル形状になるように構成される、請求項1に記載の装置。 - 前記第1の電極および前記第2の電極が双極ラジオ波焼灼電極を含む、請求項1に記載の装置。
- 前記カテーテルに接続され、前記第1の電極または前記第2の電極のうちの少なくとも一方と流体連通する流体源をさらに備える、請求項1に記載の装置。
- 治療される肺組織の部位にエネルギーを送達する方法であって、
カテーテル(101)を患者の気道に挿入するステップであって、前記カテーテルの遠位端が、第1の電極(103)と、前記第1の電極内で摺動可能に受容され、そこから伸長可能に構成される第2の電極(105)とを備えるステップと、
前記治療される肺組織の部位に近接する気道(201)に前記カテーテルを誘導するステップと、
前記治療される肺組織の部位またはその近傍に前記第1の電極が位置するように、前記気道を前記第1の電極で穿孔するステップと、
前記第2の電極を前記治療される肺組織の部位へと伸長させるステップと、
前記治療される肺組織の部位に治療量のエネルギーを送達するように構成される電源(112)を起動するステップであって、前記電源が、前記第1の電極に接続される第1の電導線(107)、および前記第2の電極に接続される第2の電導線(108)を介して接続されるステップと、
エネルギーを前記治療される肺組織の部位に送達するステップと
を含む方法。 - 前記カテーテルを気管支鏡(200)に挿入するステップであって、前記気管支鏡が前記患者の気道に挿入されているステップをさらに含む、請求項10に記載の方法。
- 前記電源によって送達される電力量を、少なくとも1つの被監視特性に応答するフィードバック機構に応じて変更するステップをさらに含む、請求項10に記載の方法。
- 肺組織の部位にエネルギーを送達するためのシステムであって、
気道(201)に挿入されるように構成され、第1の電極(103)および第2の電極(105)を備えるカテーテル(101)、および
前記カテーテルの近位端に取り付けられ、前記第2の電極を前記第1の電極から伸長させるように構成される第2の起動トグル(122)を含むハンドル(120)
を備え、前記第2の電極が前記第1の電極内で移動可能に受容され、前記第2の電極が第1の伸長形態を形成するために前記第1の電極の遠位端から伸長可能であるエネルギー送達装置と、
第1および第2の電導線(107、108)を介して前記第1の電極および前記第2の電極に接続され、RFエネルギーを送達するように構成される電源(112)と、
気道に挿入可能であり、気管支鏡(200)およびガイドシース(145)からなる群から選択される導管であって、内部で前記カテーテルが挿入可能かつ移動可能である導管と
を備えるシステム。 - 前記エネルギー送達装置に接続され、前記カテーテルの遠位端から外部に流体を送達するように構成される流体源をさらに備える、請求項13に記載のシステム。
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