JP2022027949A - 蒸気アブレーションシステム及び方法 - Google Patents
蒸気アブレーションシステム及び方法 Download PDFInfo
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- 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
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- 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
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- 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
- A61B18/042—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating using additional gas becoming plasma
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/13—Electromagnets; Actuators including electromagnets with armatures characterised by pulling-force characteristics
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
- H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
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- 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
- A61B2018/00053—Mechanical features of the instrument of device
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- 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
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00059—Material properties
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- 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
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00184—Moving parts
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- 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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00547—Prostate
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- 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
- A61B2018/00571—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
- 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
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- 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
- A61B2018/00827—Current
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- 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
- A61B2018/0091—Handpieces of the surgical instrument or device
-
- 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
- A61B2018/00964—Features of probes
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- 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
- A61B2018/044—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid
- A61B2018/048—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid in gaseous form
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- 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
- A61B2018/1475—Electrodes retractable in or deployable from a housing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F2007/1692—Electromagnets or actuators with two coils
Abstract
Description
この出願は、2015年12月18日出願の米国仮特許出願第62,269,776号及び2016年7月1日出願の第62,357,742号の出願利益を主張するものであり、それらの両方は、それらの全体が引用によって本明細書に組み込まれている。
本明細書に言及する特許及び特許出願を含む全ての文献は、各個々の文献が引用によって組み込まれるように具体的かつ個々に示されたかのような同じ程度までそれらの全体が引用によって本明細書に組み込まれる。
I1=アンペア単位の送出デバイスに流入するrf電流、
I2=アンペア単位の蒸気送出コイルに流入するrf電流、
RC及びR1は、オーム単位のそれぞれケーブル及びrfコイルのac抵抗であり、
LC及びL1は、μH単位のそれぞれケーブル及びrfコイルのインダクタンスであり、
R2は、オーム単位の蒸気送出コイルの円周ac抵抗であり、
L2は、μH単位の蒸気送出コイルのインダクタンスであり、
Mは、μH単位のrfコイルと蒸気送出コイルの間の相互インダクタンスであり、
ここで、M2=cL1L2、0<c1、
cは、rf及び蒸気コイル間の変圧器結合係数である。
ここで、x=2πfcL1/(RC+R1)
Q2=2πfL2/R2
ここで、μ0=自由空間の透磁率=4πx10-7ヘンリー/メータ
μ2=蒸気コイルの相対透磁率
D=メートル単位の蒸気コイル直径
t=m単位の蒸気コイルチューブ壁厚又は周波数fでの皮膚深度のうちの小さい方
ρ=オーム-メートル単位の内側コイルチューブの電気抵抗
Pin=Rezum発生器からの一定電力入力
110 ソレノイドニードルドライバ
112 蒸気発生器
Claims (10)
- 導入器シャフトと、
前記導入器シャフトに結合されたハンドルと、
凝縮可能蒸気を発生させるように構成された蒸気発生器と、
前記蒸気発生器と連通し、かつ前記導入器シャフト内に摺動可能に配置された蒸気送出ニードルと、
前記蒸気送出ニードルに取り付けられた磁石と、
前記磁石の周りに配置され、第1の巻線及び第2の巻線を有するソレノイドアクチュエータと、
前記導入器シャフトの内側の後退位置と、前記導入器シャフトの少なくとも部分的に外側の延長位置と、の間で前記蒸気送出ニードルの遠位先端を移動させるために、前記第1の巻線に第1の電流を供給し、同時に、前記第2の巻線に第2の電流を供給するように構成された電源と、を備え、
前記第1の電流の方向は、前記第2の電流の方向に対して反対の方向である、
ことを特徴とする前立腺治療デバイス。 - 前記第1の巻線は、前記第1の電流が前記第1の巻線に印加されたときに第1の磁場を生成するように構成され、前記第2の巻線は、前記第2の電流が前記第2の巻線に印加されたときに第2の磁場を生成するように構成されている、請求項1に記載のデバイス。
- 前記第1の磁場は、極性を前記磁石と共有する、請求項2に記載のデバイス。
- 前記第2の磁場は、前記磁石の極性と反対の極性を有する、請求項3に記載のデバイス。
- 前記第1の磁場は、第1の方向で前記磁石に第1の力を発生させる、請求項2に記載のデバイス。
- 前記第2の磁場は、前記第1の方向とは反対の第2の方向で前記磁石に第2の力を発生させる、請求項5に記載のデバイス。
- 前記第1の力と前記第2の力とを組み合わせた大きさは、前記第1の力のみの大きさの約2倍である、請求項6に記載のデバイス。
- 前記磁石は、前記蒸気送出ニードルの後退位置において、前記第1の巻線及び前記第2の巻線の両方の少なくとも一部内にある、請求項1に記載のデバイス。
- 前記磁石によって生成された磁場に比例する電圧出力を提供するように構成されたセンサを更に含む、請求項1に記載のデバイス。
- 前記蒸気送出ニードルは、前記第1の巻線及び前記第2の巻線の長手方向の中心軸からオフセットされている、請求項1に記載のデバイス。
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JP2023075659A JP2023087013A (ja) | 2015-12-18 | 2023-05-01 | 蒸気アブレーションシステム及び方法 |
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US201562269776P | 2015-12-18 | 2015-12-18 | |
US62/269,776 | 2015-12-18 | ||
US201662357742P | 2016-07-01 | 2016-07-01 | |
US62/357,742 | 2016-07-01 | ||
PCT/US2016/067558 WO2017106843A1 (en) | 2015-12-18 | 2016-12-19 | Vapor ablation systems and methods |
JP2018532059A JP7224183B2 (ja) | 2015-12-18 | 2016-12-19 | 蒸気アブレーションシステム及び方法 |
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JP2022027949A5 JP2022027949A5 (ja) | 2022-02-24 |
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US (3) | US11246642B2 (ja) |
EP (2) | EP3389527B1 (ja) |
JP (3) | JP7224183B2 (ja) |
CN (2) | CN113855214A (ja) |
AU (3) | AU2016371153B2 (ja) |
BR (1) | BR112018012199A2 (ja) |
CA (1) | CA3008282A1 (ja) |
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JP6422975B2 (ja) | 2013-12-10 | 2018-11-14 | エヌエックスセラ インコーポレイテッド | 蒸気焼灼システム及び方法 |
EP3250140B1 (en) | 2015-01-29 | 2023-10-18 | Nxthera, Inc. | Vapor ablation systems |
US10702327B2 (en) | 2015-05-13 | 2020-07-07 | Boston Scientific Scimed, Inc. | Systems and methods for treating the bladder with condensable vapor |
JP7224183B2 (ja) | 2015-12-18 | 2023-02-17 | ボストン サイエンティフィック サイムド,インコーポレイテッド | 蒸気アブレーションシステム及び方法 |
WO2018119269A1 (en) * | 2016-12-21 | 2018-06-28 | Nxthera, Inc. | Vapor ablation systems and methods |
WO2018129466A1 (en) | 2017-01-06 | 2018-07-12 | Nxthera, Inc. | Transperineal vapor ablation systems and methods |
AU2018288848B2 (en) * | 2017-06-20 | 2021-02-04 | AEGEA Medical, Inc | Induction coil assembly for uterine ablation and method |
US20200121346A1 (en) * | 2018-10-17 | 2020-04-23 | Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America | Medical device |
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US20180360523A1 (en) | 2018-12-20 |
CN108472070A (zh) | 2018-08-31 |
BR112018012199A2 (pt) | 2018-11-27 |
EP4250319A2 (en) | 2023-09-27 |
CN113855214A (zh) | 2021-12-31 |
JP2019505266A (ja) | 2019-02-28 |
AU2016371153A1 (en) | 2018-06-28 |
CN108472070B (zh) | 2021-10-22 |
EP3389527B1 (en) | 2023-09-13 |
US11246642B2 (en) | 2022-02-15 |
JP7274559B2 (ja) | 2023-05-16 |
EP3389527A4 (en) | 2019-08-07 |
JP7224183B2 (ja) | 2023-02-17 |
AU2024200473A1 (en) | 2024-02-15 |
IL259920A (en) | 2018-07-31 |
US20240138901A1 (en) | 2024-05-02 |
US11896287B2 (en) | 2024-02-13 |
EP3389527A1 (en) | 2018-10-24 |
US20220117648A1 (en) | 2022-04-21 |
JP2023087013A (ja) | 2023-06-22 |
AU2022201098B2 (en) | 2023-10-26 |
WO2017106843A1 (en) | 2017-06-22 |
AU2022201098A1 (en) | 2022-03-10 |
EP4250319A3 (en) | 2023-11-29 |
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CA3008282A1 (en) | 2017-06-22 |
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