JP2021518789A - 非穿刺型マイクロ波アブレーションアンテナ及びその使用 - Google Patents
非穿刺型マイクロ波アブレーションアンテナ及びその使用 Download PDFInfo
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Abstract
Description
図1に示すように、本実施例の非穿刺型マイクロ波アブレーションアンテナは、アンテナの先端に位置する非穿刺型照射器と、照射器1に嵌設された照射器カバー2とを備える。照射器カバー2は全て弾性材料から製造される。本例で照射器カバー2はPIで製造されるが、ポリエーテルエーテルケトン(PEEK)又はジルコニアセラミック(非弾性材料)で製造されてもよい。弾性材料を用いる利点は、アンテナを肺部に挿入した後、血管又は気管支を損傷せず、肺部出血が起きないことである。したがって、少なくとも照射器カバーの先端は弾性材料から製造されることが好ましく、これにより本発明の設計上の要求が満たされる。照射器カバーの厚さは0.35mmで、照射器カバー外に非粘着性コーティング層が塗布されている。当然ながら、先端が(非穿刺型として)鈍いように設計されているため、ジルコニアセラミックからなる照射器カバーも本発明の設計上の要求を満たすことができる。
図4に示すように、当該アンテナは(頭部の先端が曲面である)金属材質の照射器1と、当該照射器1の後方に嵌設された媒体スリーブ10と、媒体スリーブ10の後端に嵌設された針棒3とを有し、針棒3内には同軸ケーブルが貫通するように設けられ、照射器1の後端は同軸ケーブルの内部導体に接続され(電気的に接続され)、照射器1の後端と同軸ケーブルの外部導体4との間にアンテナ発射窓が形成される。導水管12は同軸ケーブルと針棒3との間に設けられ、その先端は遮水軸11に固定される。導水管12と同軸ケーブルとの間のギャップにより給水路が形成され、導水管と針棒との間のギャップにより水戻り路が形成される。
2 照射器カバー
3 針棒
4 外部導体
5 内部導体
6 媒体管
7 第1ギャップ
8 第2ギャップ
9 凹溝
10 媒体スリーブ
11 遮水軸
12 導水管
Claims (10)
- アンテナの先端に位置する照射器と、前記照射器に嵌設された照射器カバーとを有するマイクロ波アブレーションアンテナにおいて、前記照射器カバーの先端が鈍いことを特徴とする非穿刺型マイクロ波アブレーションアンテナ。
- 前記照射器カバーの全体又は先端は弾性材料から製造されることを特徴とする請求項1に記載の非穿刺型マイクロ波アブレーションアンテナ。
- 照射器の長さ範囲は160〜200mmで、直径範囲は1.1mm〜1.5mmであり、照射器カバーの厚さ範囲は0.2mm〜0.5mmであることを特徴とする請求項1に記載の非穿刺型マイクロ波アブレーションアンテナ。
- 前記照射器カバーの側壁に凹溝が設けられ、前記凹溝は照射器の近くに設けられることを特徴とする請求項1に記載の非穿刺型マイクロ波アブレーションアンテナ。
- 照射器カバーの後部に設けられた針棒と、針棒内を貫通するように設けられた同軸ケーブルとをさらに含み、前記同軸ケーブルは内部導体と、外部導体とを有し、前記内部導体は照射器に固定され、前記照射器及び同軸ケーブル外に媒体管が嵌設され、媒体管の先端及び/又は先端の側壁には、冷却水の出入孔として開孔があり、前記媒体管と照射器カバー、及び媒体管と針棒との間に第1ギャップが形成され、媒体管と照射器、及び媒体管と同軸ケーブルの外部導体との間に第2ギャップが形成され、前記第1ギャップは冷却水の給水通路とされ、第2ギャップは冷却水の戻り通路とされ、又は前記第2ギャップは冷却水の給水通路とされ、第1ギャップは冷却水の戻り通路とされることを特徴とする請求項1に記載の非穿刺型マイクロ波アブレーションアンテナ。
- 前記照射器は後ろ向きに開設した孔を有し、同軸ケーブルの内部導体は当該孔内に挿入されて照射器に固定されることを特徴とする請求項5に記載の非穿刺型マイクロ波アブレーションアンテナ。
- 前記同軸ケーブルの内部導体は照射器に溶接して固定され、又は圧着して固定されることを特徴とする請求項5に記載の非穿刺型マイクロ波アブレーションアンテナ。
- 前記照射器は同軸ケーブルの外部導体に固定して接続され、照射器と同軸ケーブルの外部導体は電気的に接続されることを特徴とする請求項5に記載の非穿刺型マイクロ波アブレーションアンテナ。
- 前記媒体管はポリエーテルエーテルケトンから製造され、前記媒体管の壁の厚さ範囲は0.02〜0.04mmであることを特徴とする請求項6に記載の非穿刺型マイクロ波アブレーションアンテナ。
- 肺部すりガラス状病変のマイクロ波アブレーション治療に用いることを特徴とする請求項1〜10のいずれか1項に記載の非穿刺型マイクロ波アブレーションアンテナ。
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CN201810516456.1 | 2018-05-25 | ||
PCT/CN2019/077763 WO2019223400A1 (zh) | 2018-05-25 | 2019-03-12 | 非穿刺型微波消融天线及其应用 |
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CN114469329A (zh) | 2018-05-25 | 2022-05-13 | 南通融锋医疗科技有限公司 | 一种用于治疗ggo的微波消融天线 |
CA3150109A1 (en) * | 2019-08-07 | 2021-02-11 | Biocompatibles Uk Limited | Microwave ablation probe |
CN113243988B (zh) * | 2021-06-24 | 2022-11-18 | 北京东方略生物医药科技股份有限公司 | 微波消融装置 |
CN113413210B (zh) * | 2021-07-23 | 2024-05-24 | 南京瑞波医学科技有限公司 | 一种带有注射抽吸功能的消融天线 |
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CN114469329A (zh) | 2022-05-13 |
US20210113267A1 (en) | 2021-04-22 |
CN108670405A (zh) | 2018-10-19 |
US11986238B2 (en) | 2024-05-21 |
EP3760149A1 (en) | 2021-01-06 |
EP3760149A4 (en) | 2021-04-21 |
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