GB2294323A - Laser ultrasound probe and ablator - Google Patents
Laser ultrasound probe and ablatorInfo
- Publication number
- GB2294323A GB2294323A GB9523723A GB9523723A GB2294323A GB 2294323 A GB2294323 A GB 2294323A GB 9523723 A GB9523723 A GB 9523723A GB 9523723 A GB9523723 A GB 9523723A GB 2294323 A GB2294323 A GB 2294323A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ultrasound
- optical fibre
- medium
- target
- average power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- A61B18/245—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 for removing obstructions in blood vessels or calculi
Abstract
A laser ultrasound probe, suitable for intravascular use, of the kind having an ultrasonic transducer element comprising an ultrasound receiving surface of piezoelectric polymeric material and an optical fibre with one end directed forwardly from that surface and arranged to receive laser radiation for transmission through the optical fibre and emission from the said one end thereof, wherein the optical fibre is coupled with laser source means adapted to provide alternatively a relatively low average power laser beam, which, when modulated or pulsed and emitted from the one end of the optical fibre and incident on a target, will generate ultrasound at an intensity suitable to be received by the transducer element and converted thereby into electrical monitoring signals, and a relatively high average power laser beam suitable, when incident on the said target, to produce ablation thereof, the transducer element being sufficiently robust to withstand the ultrasound which is then also generated. The relatively low average power laser beam may alternatively be at a first wavelength which, when modulated or pulsed and emitted from the one end of the optical fibre into a medium which is highly absorptive at that wavelength, will cause said medium to generate and propagate ultrasound at an intensity suitable to be reflected by a target contacted by said medium and received by the transducer element and converted thereby into electrical monitoring signals, the relatively high average power laser beam being then at a second wavelength at which the said medium is transmissive and being suitable, when incident on the said target, to produce ablation thereof, the transducing element being sufficiently robust to withstand the ultrasound which is then also generated. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB939312327A GB9312327D0 (en) | 1993-06-15 | 1993-06-15 | Laser ultrasound probe and ablator |
PCT/GB1994/001276 WO1994028804A1 (en) | 1993-06-15 | 1994-06-14 | Laser ultrasound probe and ablator |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9523723D0 GB9523723D0 (en) | 1996-02-21 |
GB2294323A true GB2294323A (en) | 1996-04-24 |
GB2294323B GB2294323B (en) | 1996-11-27 |
Family
ID=10737193
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB939312327A Pending GB9312327D0 (en) | 1993-06-15 | 1993-06-15 | Laser ultrasound probe and ablator |
GB9523723A Expired - Fee Related GB2294323B (en) | 1993-06-15 | 1994-06-14 | Laser ultrasound probe and ablator |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB939312327A Pending GB9312327D0 (en) | 1993-06-15 | 1993-06-15 | Laser ultrasound probe and ablator |
Country Status (5)
Country | Link |
---|---|
US (1) | US5718231A (en) |
EP (1) | EP0703755A1 (en) |
JP (1) | JPH08511185A (en) |
GB (2) | GB9312327D0 (en) |
WO (1) | WO1994028804A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6839496B1 (en) | 1999-06-28 | 2005-01-04 | University College Of London | Optical fibre probe for photoacoustic material analysis |
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US20080154257A1 (en) * | 2006-12-22 | 2008-06-26 | Shiva Sharareh | Real-time optoacoustic monitoring with electophysiologic catheters |
DE19522310C2 (en) * | 1995-06-20 | 1997-07-03 | A Dr Kreis | Catheter for removing a vasoconstriction with an imaging unit |
US6309352B1 (en) * | 1996-01-31 | 2001-10-30 | Board Of Regents, The University Of Texas System | Real time optoacoustic monitoring of changes in tissue properties |
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US6024740A (en) * | 1997-07-08 | 2000-02-15 | The Regents Of The University Of California | Circumferential ablation device assembly |
US6652515B1 (en) | 1997-07-08 | 2003-11-25 | Atrionix, Inc. | Tissue ablation device assembly and method for electrically isolating a pulmonary vein ostium from an atrial wall |
US6514249B1 (en) | 1997-07-08 | 2003-02-04 | Atrionix, Inc. | Positioning system and method for orienting an ablation element within a pulmonary vein ostium |
US6500174B1 (en) | 1997-07-08 | 2002-12-31 | Atrionix, Inc. | Circumferential ablation device assembly and methods of use and manufacture providing an ablative circumferential band along an expandable member |
US6997925B2 (en) * | 1997-07-08 | 2006-02-14 | Atrionx, Inc. | Tissue ablation device assembly and method for electrically isolating a pulmonary vein ostium from an atrial wall |
US6164283A (en) * | 1997-07-08 | 2000-12-26 | The Regents Of The University Of California | Device and method for forming a circumferential conduction block in a pulmonary vein |
US6245064B1 (en) | 1997-07-08 | 2001-06-12 | Atrionix, Inc. | Circumferential ablation device assembly |
FR2766115B1 (en) * | 1997-07-18 | 1999-08-27 | Commissariat Energie Atomique | DEVICE AND METHOD FOR LASER-EXTENDED REMOTE CUTTING, IN PULSE MODE |
US6607502B1 (en) | 1998-11-25 | 2003-08-19 | Atrionix, Inc. | Apparatus and method incorporating an ultrasound transducer onto a delivery member |
US6188050B1 (en) | 1999-03-25 | 2001-02-13 | Karta Technologies, Inc. | System and method for controlling process temperatures for a semi-conductor wafer |
US6758830B1 (en) | 1999-05-11 | 2004-07-06 | Atrionix, Inc. | Catheter positioning system |
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AUPQ113799A0 (en) * | 1999-06-22 | 1999-07-15 | University Of Queensland, The | A method and device for measuring lymphoedema |
EP1296598B1 (en) | 2000-05-16 | 2007-11-14 | Atrionix, Inc. | Apparatus incorporating an ultrasound transducer on a delivery member |
EP1289439B1 (en) | 2000-06-13 | 2005-03-16 | Atrionix, Inc. | Surgical ablation probe for forming a circumferential lesion |
GB0015250D0 (en) | 2000-06-22 | 2000-08-16 | Payne Peter A | Ophthalmic uses of lasers |
US6652459B2 (en) | 2000-06-28 | 2003-11-25 | Peter Alfred Payne | Ophthalmic uses of lasers |
EP1465701A4 (en) | 2002-01-15 | 2008-08-13 | Univ California | System and method providing directional ultrasound therapy to skeletal joints |
EP1503685B1 (en) | 2002-01-23 | 2012-10-31 | The Regents of The University of California | Implantable thermal treatment apparatus |
IL148791A0 (en) * | 2002-03-20 | 2002-09-12 | Yoni Iger | Method and apparatus for altering activity of tissue layers |
US6786202B2 (en) * | 2002-09-24 | 2004-09-07 | Caterpillar Inc | Hydraulic pump circuit |
US7258690B2 (en) | 2003-03-28 | 2007-08-21 | Relievant Medsystems, Inc. | Windowed thermal ablation probe |
US8361067B2 (en) | 2002-09-30 | 2013-01-29 | Relievant Medsystems, Inc. | Methods of therapeutically heating a vertebral body to treat back pain |
US6907884B2 (en) | 2002-09-30 | 2005-06-21 | Depay Acromed, Inc. | Method of straddling an intraosseous nerve |
WO2004096082A2 (en) * | 2003-04-24 | 2004-11-11 | The Board Of Regents Of The University Of Texas System | Noninvasive blood analysis by optical probing of the veins under the tongue |
EP2799109B1 (en) * | 2004-08-05 | 2019-05-08 | Cathrx Ltd | A process of manufacturing an electrical lead and an electrical lead |
US20060184042A1 (en) * | 2005-01-22 | 2006-08-17 | The Texas A&M University System | Method, system and apparatus for dark-field reflection-mode photoacoustic tomography |
US8932208B2 (en) * | 2005-05-26 | 2015-01-13 | Maquet Cardiovascular Llc | Apparatus and methods for performing minimally-invasive surgical procedures |
US20060270900A1 (en) * | 2005-05-26 | 2006-11-30 | Chin Albert K | Apparatus and methods for performing ablation |
ES2476999T3 (en) | 2005-10-11 | 2014-07-15 | Impedimed Limited | Hydration Status Monitoring |
US20070185479A1 (en) * | 2006-02-06 | 2007-08-09 | Liming Lau | Methods and devices for performing ablation and assessing efficacy thereof |
US7750536B2 (en) | 2006-03-02 | 2010-07-06 | Visualsonics Inc. | High frequency ultrasonic transducer and matching layer comprising cyanoacrylate |
US20070225697A1 (en) * | 2006-03-23 | 2007-09-27 | Ketan Shroff | Apparatus and methods for cardiac ablation |
US8006560B2 (en) * | 2006-04-14 | 2011-08-30 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Laser ultrasonic property measurement apparatus |
EP2020918B1 (en) * | 2006-05-30 | 2015-05-20 | Impedimed Limited | Impedance measurements |
US20080039879A1 (en) * | 2006-08-09 | 2008-02-14 | Chin Albert K | Devices and methods for atrial appendage exclusion |
CA2670293C (en) * | 2006-11-30 | 2017-01-03 | Impedimed Limited | Measurement apparatus |
US8460195B2 (en) * | 2007-01-19 | 2013-06-11 | Sunnybrook Health Sciences Centre | Scanning mechanisms for imaging probe |
KR101517252B1 (en) * | 2007-01-19 | 2015-05-04 | 써니브룩 헬스 사이언시즈 센터 | Scanning mechanisms for imaging probe |
WO2008119166A1 (en) * | 2007-03-30 | 2008-10-09 | Z-Tech (Canada) Inc. | Active guarding for reduction of resistive and capactive signal loading with adjustable control of compensation level |
EP2148613B9 (en) * | 2007-04-20 | 2014-12-10 | Impedimed Limited | Monitoring system and probe |
CA2707419A1 (en) * | 2007-08-09 | 2009-02-12 | Impedimed Limited | Impedance measurement process |
EP2209517A4 (en) * | 2007-10-05 | 2011-03-30 | Maquet Cardiovascular Llc | Devices and methods for minimally-invasive surgical procedures |
EP2203733B1 (en) | 2007-10-25 | 2017-05-03 | Washington University in St. Louis | Confocal photoacoustic microscopy with optical lateral resolution |
WO2010048258A1 (en) * | 2008-10-23 | 2010-04-29 | Washington University In St. Louis | Reflection-mode photoacoustic tomography using a flexibly-supported cantilever beam |
ATE511787T1 (en) * | 2007-12-28 | 2011-06-15 | Koninkl Philips Electronics Nv | TISSUE ABLATION DEVICE WITH PHOTOACOUSTIC LESION FORMATION FEEDBACK |
US20090209986A1 (en) * | 2008-02-15 | 2009-08-20 | Stewart Michael C | Devices, Tools and Methods for Atrial Appendage Exclusion |
US10028753B2 (en) | 2008-09-26 | 2018-07-24 | Relievant Medsystems, Inc. | Spine treatment kits |
AU2009296474B2 (en) | 2008-09-26 | 2015-07-02 | Relievant Medsystems, Inc. | Systems and methods for navigating an instrument through bone |
US8764666B2 (en) * | 2008-10-28 | 2014-07-01 | The Regents Of The University Of California | Ultrasound guided optical coherence tomography, photoacoustic probe for biomedical imaging |
US9615766B2 (en) | 2008-11-28 | 2017-04-11 | Impedimed Limited | Impedance measurement process |
US9351705B2 (en) | 2009-01-09 | 2016-05-31 | Washington University | Miniaturized photoacoustic imaging apparatus including a rotatable reflector |
US9086365B2 (en) | 2010-04-09 | 2015-07-21 | Lihong Wang | Quantification of optical absorption coefficients using acoustic spectra in photoacoustic tomography |
CN103209643A (en) * | 2010-04-30 | 2013-07-17 | 视声公司 | Photoacoustic transducer and imaging system |
EP2637555B1 (en) | 2010-11-08 | 2021-09-15 | Conavi Medical Inc. | Systems for improved visualization during minimally invasive procedures |
US8997572B2 (en) | 2011-02-11 | 2015-04-07 | Washington University | Multi-focus optical-resolution photoacoustic microscopy with ultrasonic array detection |
US10390877B2 (en) | 2011-12-30 | 2019-08-27 | Relievant Medsystems, Inc. | Systems and methods for treating back pain |
KR101327195B1 (en) * | 2012-05-21 | 2013-11-06 | 부경대학교 산학협력단 | Dual probe with optical fiber for ultrasound and photacoustic diagnosis and treatment |
WO2014011403A1 (en) * | 2012-07-11 | 2014-01-16 | The University Of Connecticut | Dual-modality endoscope, method of manufacture, and use thereof |
WO2014030491A1 (en) * | 2012-08-20 | 2014-02-27 | 株式会社アドバンテスト | Photoacoustic wave meter |
US10588691B2 (en) | 2012-09-12 | 2020-03-17 | Relievant Medsystems, Inc. | Radiofrequency ablation of tissue within a vertebral body |
WO2014063005A1 (en) | 2012-10-18 | 2014-04-24 | Washington University | Transcranialphotoacoustic/thermoacoustic tomography brain imaging informed by adjunct image data |
JP6195625B2 (en) | 2012-11-05 | 2017-09-13 | リリーバント メドシステムズ、インコーポレイテッド | System and method for creating a curved pathway through bone and regulating nerves within the bone |
US9724151B2 (en) | 2013-08-08 | 2017-08-08 | Relievant Medsystems, Inc. | Modulating nerves within bone using bone fasteners |
WO2015077355A1 (en) | 2013-11-19 | 2015-05-28 | Washington University | Systems and methods of grueneisen-relaxation photoacoustic microscopy and photoacoustic wavefront shaping |
CN106456111B (en) | 2014-03-12 | 2020-02-11 | 富士胶片索诺声公司 | High frequency ultrasound transducer with ultrasound lens with integrated central matching layer |
WO2018001760A1 (en) * | 2016-06-29 | 2018-01-04 | Koninklijke Philips N.V. | Real time dosimetry of ultrasound imaging probe |
US11672426B2 (en) | 2017-05-10 | 2023-06-13 | California Institute Of Technology | Snapshot photoacoustic photography using an ergodic relay |
WO2020037082A1 (en) | 2018-08-14 | 2020-02-20 | California Institute Of Technology | Multifocal photoacoustic microscopy through an ergodic relay |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0329492A2 (en) * | 1988-02-18 | 1989-08-23 | Bjorn A. J. Angelsen | Laser catheter delivery system |
JPH0382482A (en) * | 1989-08-25 | 1991-04-08 | Olympus Optical Co Ltd | Laser treatment device |
JPH03131242A (en) * | 1989-10-17 | 1991-06-04 | Olympus Optical Co Ltd | Ultrasonic probe |
WO1992007623A1 (en) * | 1990-10-29 | 1992-05-14 | C.R. Bard, Inc. | Device for use in laser angioplasty |
WO1992016140A1 (en) * | 1991-03-21 | 1992-10-01 | Winston Thomas R | Catheter for laser treatment of atherosclerotic plaque and other tissue abnormalities |
US5163432A (en) * | 1990-07-16 | 1992-11-17 | Matsushita Electric Industrial Co., Ltd. | Catheter type laser illuminating apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8727875D0 (en) * | 1987-11-27 | 1987-12-31 | Cogent Ltd | Ultrasonic probe |
EP0329392A2 (en) * | 1988-02-16 | 1989-08-23 | Prince Manufacturing, Inc. | Tennis shoe having internally arranged navicular support stirrup |
JPH03131247A (en) * | 1989-10-17 | 1991-06-04 | Olympus Optical Co Ltd | Laser equipment for medical use |
-
1993
- 1993-06-15 GB GB939312327A patent/GB9312327D0/en active Pending
-
1994
- 1994-06-14 WO PCT/GB1994/001276 patent/WO1994028804A1/en not_active Application Discontinuation
- 1994-06-14 US US08/557,175 patent/US5718231A/en not_active Expired - Fee Related
- 1994-06-14 GB GB9523723A patent/GB2294323B/en not_active Expired - Fee Related
- 1994-06-14 EP EP94917740A patent/EP0703755A1/en not_active Withdrawn
- 1994-06-14 JP JP7501509A patent/JPH08511185A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0329492A2 (en) * | 1988-02-18 | 1989-08-23 | Bjorn A. J. Angelsen | Laser catheter delivery system |
JPH0382482A (en) * | 1989-08-25 | 1991-04-08 | Olympus Optical Co Ltd | Laser treatment device |
JPH03131242A (en) * | 1989-10-17 | 1991-06-04 | Olympus Optical Co Ltd | Ultrasonic probe |
US5163432A (en) * | 1990-07-16 | 1992-11-17 | Matsushita Electric Industrial Co., Ltd. | Catheter type laser illuminating apparatus |
WO1992007623A1 (en) * | 1990-10-29 | 1992-05-14 | C.R. Bard, Inc. | Device for use in laser angioplasty |
WO1992016140A1 (en) * | 1991-03-21 | 1992-10-01 | Winston Thomas R | Catheter for laser treatment of atherosclerotic plaque and other tissue abnormalities |
Non-Patent Citations (2)
Title |
---|
PATENTS ABSTRACTS OF JAPAN, Vol.15, no.252 (C-0844) & JP 3 082 482 A * |
PATENTS ABSTRACTS OF JAPAN, Vol.15, no.337 (C-0862) & JP 3 131 242 A * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6839496B1 (en) | 1999-06-28 | 2005-01-04 | University College Of London | Optical fibre probe for photoacoustic material analysis |
Also Published As
Publication number | Publication date |
---|---|
EP0703755A1 (en) | 1996-04-03 |
WO1994028804A1 (en) | 1994-12-22 |
JPH08511185A (en) | 1996-11-26 |
US5718231A (en) | 1998-02-17 |
GB2294323B (en) | 1996-11-27 |
GB9523723D0 (en) | 1996-02-21 |
GB9312327D0 (en) | 1993-07-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19990614 |