JP5524487B2 - コンフォーマルレーザ治療手順を用いてサンプルの少なくとも一部分に電磁放射を放射する方法及びシステム。 - Google Patents
コンフォーマルレーザ治療手順を用いてサンプルの少なくとも一部分に電磁放射を放射する方法及びシステム。 Download PDFInfo
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- JP5524487B2 JP5524487B2 JP2008553509A JP2008553509A JP5524487B2 JP 5524487 B2 JP5524487 B2 JP 5524487B2 JP 2008553509 A JP2008553509 A JP 2008553509A JP 2008553509 A JP2008553509 A JP 2008553509A JP 5524487 B2 JP5524487 B2 JP 5524487B2
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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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B18/24—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor with a catheter
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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
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00022—Sensing or detecting at the treatment site
- A61B2017/00057—Light
- A61B2017/00066—Light intensity
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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
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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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B2018/2255—Optical elements at the distal end of probe tips
- A61B2018/2272—Optical elements at the distal end of probe tips with reflective or refractive surfaces for deflecting the beam
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0066—Optical coherence imaging
Description
(連邦政府により支援された研究に関する声明)
罹患率と転移に伴う死亡率を劇的に減少させる可能性があるとして、初期癌の特定および治療方法と技術が広く探求されてきた。上皮癌と前駆病変はしばしば巣状をなし、広い範囲に渡り不均一に分布することがある、高感度診断が特に要求される。診断は、10億個以上にも及びうる細胞で構成されたフィールドにおいて単一細胞大のスケールで行なう必要がある。
バレット食道
管理可能な治療
代表的なモニタリング
代表的なコンフォーマルレーザ治療法
代表的な広視野スクリーニング
光周波数領域撮像(OFDI)
代表的なバルーンカテーテル
豚の食道の予備撮像
人体食道の予備撮像
レーザ熱傷のモニタリング
スペックル非相関
複屈折
散乱
血流
代表的な制御方法
波長
出力及び暴露時間
手順時間
代表的なコンフォーマルレーザ治療技術では、手順遂行時間は2At/(π r v)で見積もってもよい。ここにAtは治療面積、rはレーザスポット半径、およびvはレーザスポット走査速度である。食道治療長60mmに対して食道直径は20mmであった。
代表的なシステムの設計
代表的な治療用レーザ装置
代表的な卓上型システム
レーザおよびOFDIビームの代表的な位置決めおよび登録方法
代表的な波長スケーリング
を一定に保持されるようにレーザ出力が調節してもよい。これは、損傷深度が約0.25から1.5mmの範囲で幅が一定の線となる。
代表的な走査速度スケーリング
レーザおよびOFDIビームの代表的な位置決めおよび登録
代表的な内視鏡プローブの設計
代表的な回転ジャンクション
代表的な高速データ収集および処理
代表的なレーザ
代表的なユーザインターフェイス
代表的な参考文献
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15. Evans JA, Poneros JM, Bouma BE, Bressner J, Halpern EF, Shishkov M,Lauwers GY, Mino−Kenudson M, Nishioka NS and Tearney GJ.、Optical Coherence Tomography to Identify Intramucosal Carcinoma and High Grade Dysplasia in Barrett’s Esophagus「バレット食道における粘膜内癌および高度異形成特定用光コヒーレンストモグラフィー」、Clinical Gastroenterology and Hepatology、 2005;4:38−43.
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19. Choma MA, Sarunic MV, Changhuei Y and Izatt JA.、Sensitivity advantage of swept source and Fourier domain optical coherence tomography(掃引型光源およびフーリエ領域光コヒーレンストモグラフィーの検出感度の利点)、Optics Express 2003;I I :2183−2189.
20. Leitgeb R, Hitzenberger CK and Fercher AF.、Performance of Fourier domain vs. time domain optical coherence tomography(フーリエ領域対時間領域光コヒーレンストモグラフィーの性能比較)、Optics Express 2003;I I :889−894.
21. Yun SH, Tearney GJ, de Boer JF, Iftimia N and Bouma BE.、High−speed optical frequency−domain imaging(高速光周波数領域撮像)、Optics Express 2003; 11 :2953−2963.
22. Yun SH, Boudoux C, Tearney GJ and Bouma BE.、High−speed wavelength−swept semiconductor laser with a polygon−scanner−based wavelength filter(ポリゴン走査型波長フィルターを有する高速波長掃引型半導体レーザ)、Optics Letters 2003;28: 1981−1983.
23. Oh WY, Yun SH, Tearney GJ and Bouma BE.、115 kHz tuning repetition rate ultrahigh−speed wavelength−swept semiconductor laser(115kHz共振繰返速度の超高速波長掃引型半導体レーザ)、Optics Letters 2005;30:3159− 3161.
24. Vakoc BJ, Yun SH, de Boer JF, Teamey GJ and Bouma BE.、Phase−resolved optical frequency domain imaging(位相分解光周波数領域撮像)、Optics Express 2005;13:5483−5493.
25. Brown SB, Brown EA and Walker I.、The present and future role of photodynamic therapy in cancer treatment(癌治療における光力学療法の現在および未来の役割)、Lancet Oncol 2004;5:497−508.
26. van den Boogert J, van Hillegersberg R, Siersema PD, de Bruin RW and Tilanus HW.、Endoscopic ablation therapy for Barrett’s esophagus with high−grade dysplasia: a review(高度異形成バレット食道の内視鏡アブレーション治療:検討)、Am J Gastroenterol 1999;94: 1153−1160.
27. Sampラインr RE, Fennerty B and Garewal HS.、Reversal of Barrett’s esophagus with acid suppression and multipolar electrocoagulation: preliminary results(酸抑制および多極電気凝固法によるバレット食道の好転:中間結果)、Gastrointest Endosc 1996;44:532−535.
28. Sampラインr RE.、Endoscopic ablative therapy for Barrett’s esophagus(バレット食道の内視鏡アブレーション治療法)、Gastrointest Endosc、2004;59:66−69.
29. Soetikno RM, Gotoda T, Nakanishi Y and Soehendra N.、Endoscopic mucosal resection(内視鏡的粘膜切除術)、Gastrointest Endosc 2003;57:567−579.
30. Ganz RA, Utley DS, Stern RA, Jackson J, Batts KP and Termin P.、Complete ablation of esophageal epithelium with a balloon−based bipolar electrode: a phased evaluation in the porcine and in the human esophagus(バルーン型2電極を用いた食道上皮の完全アブレーション:豚及びヒト食道における位相化評価)、Gastrointest Endosc 2004;60:1002−1010.
31. Mark H. Johnston, Brooks D. Cash, Cathy A. Dykes, Halisha S. Mays and Lavonne R. Johnston、Cryoablation of Dysplasia in Barrett’s Esophagus (BE) and Early Stage Esophageal Cancer「バレット食道(BE)における異形成および初期食道癌のクライオアブレーション術」、Gastrointest Endosc 2006 ;63: AB223.
32. Overholt BF, Panjehpour M and Haydek JM.、Photodynamic therapy for Barrett’s esophagus「バレット食道の光力学的治療法:100名の患者の追跡調査」、Gastrointest Endosc 1999;49:1−7.
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37. Nahen K and Vogel A.、Investigations on acoustic on−line monitoring of IR laser ablation of burned skin(熱傷皮膚のIRレーザアブレーションの音響オンラインモニタリングの研究)、Lasers in Surgery & Medicine 1999;25:69−78.
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実際に、本発明の代表的な実施の形態による装置、システム、および方法は、どのようなOCTシステム、OFDIシステム、スペクトル領域OCT(SD−OCT)システム、または他の画像化システム、例えば、2004年9月8日出願の国際特許出願第PCT/US2004/029148号、2005年11月2日出願の米国特許出願第11/266,779号、および2004年7月9日出願の米国特許出願第10/501,276号に記載されているものに対しても使用および/または実施可能であり、これらの開示の全てを本明細書の一部として援用する。従って、当業者にとっては、本明細書に明確に提示又は説明されていなくとも、本発明の原理を具現化する数多くのシステム、装置、及び方法に工夫を凝らすことが可能であり、これは本発明の趣旨と範囲内に含まれることが理解されるであろう。さらに、上述の明細書に前記の先行技術の知識が明示的に援用されていない範囲においても、その全体を明示的に本明細書に援用する。本明細書で引用した上述の全ての文献は、その全体を本明細書の一部として援用する。
Claims (10)
- 構造体の一部分に、治療用光である、レーザ光を照射するシステムであって、
前記一部分に照射される前記レーザ光のビームの断面積が、最大で、照射される前記一部分の全面積の略10分の1である、前記レーザ光のビームを準備するように構成された第1の構成部と、
時間とともに変化する波長を有し、前記構造体の表面にもたらされる、モニタリング用の光である、サンプリングビームで、前記構造体の表面を横断する方向に走査することによって、(i)前記レーザ光の波長を調節しながら、又は、(ii)前記レーザ光の照射深度の深度プロファイル若しくは深度分布をモニタしながら、前記レーザ光のビームを前記一部分に照射するように構成された第2の構成部と、を含むシステム。 - 前記レーザ光は前記構造体の前記一部分に特定の波長で送出され、さらに、
前記レーザ光のビームを前記一部分に照射するときに、前記レーザ光の前記特定の波長を変更することによって、前記構造体の温度分布を制御するように構成された第3の構成部を含む、請求項1記載のシステム。 - さらに、
前記サンプリングビームを前記一部分に照射する前に、前記構造体の前記一部分の近傍又は内部にある前記構造体の部位に、前記レーザ光の照射によって温度変化を引き起こすように構成された第4の構成部と、
複数の深度における前記部位の変化を、前記部位からもたらされた、(i)前記サンプリングビームの位相、又は(ii)前記サンプリングビームの前記位相若しくは振幅の少なくとも一つの変化のレート、の関数として定義するように構成された第5の構成部と、を含む、請求項1記載のシステム。 - 前記レーザ光の走査速度又は出力の少なくとも一つを調節しながら、前記レーザ光のビームを前記一部分に照射する、請求項1記載のシステム。
- 前記レーザ光のビームは、前記レーザ光の出力の少なくとも50%を含む、第1の断面幅を有し、
前記レーザ光のビームを生物構造体の一部分内の所定の経路に沿って前記生物構造体に照射する時、前記所定の経路を含む、第2の幅を有する前記生物構造体の第2の領域に照射される前記レーザ光のエネルギーの量は、略一定であり、
前記第1の断面幅と前記第2の幅は、略同一であり、前記レーザ光のビームの並進方向に対して横断して(transverse)測定する、請求項1記載のシステム。 - 前記レーザ光のビームは、前記レーザ光の走査方向に対して略平行な方向の前記レーザ光の出力の積分(integration)が、略一定であるような形状を有する、請求項1記載のシステム。
- さらに、少なくとも一つの非円形の開口を用いて前記レーザ光のビームを成形するように構成された第6の構成部を含む、請求項1記載のシステム。
- さらに、前記レーザ光のビームの形状を非円形に修正するように構成された第7の構成部を含む、請求項1記載のシステム。
- 前記所定の経路は、(i)略螺旋形、(ii)略円形、又は(iii)略平行線の1の群、の少なくとも一つである、請求項5記載のシステム。
- 前記構造体は、管状の形状を有する、請求項1記載のシステム。
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KR101462023B1 (ko) | 2013-02-28 | 2014-11-18 | 알피니언메디칼시스템 주식회사 | 캐비테이션 검출 방법과 그를 위한 초음파 의료 장치 |
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