WO1991003206A1 - Dispositif d'irradiation de faisceaux laser - Google Patents
Dispositif d'irradiation de faisceaux laser Download PDFInfo
- Publication number
- WO1991003206A1 WO1991003206A1 PCT/JP1990/001108 JP9001108W WO9103206A1 WO 1991003206 A1 WO1991003206 A1 WO 1991003206A1 JP 9001108 W JP9001108 W JP 9001108W WO 9103206 A1 WO9103206 A1 WO 9103206A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- laser beam
- laser light
- ring
- optical fiber
- emission
- Prior art date
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
Definitions
- the present invention relates to a laser light emitting device for mainly removing a diseased part of a protrusion in an animal tissue such as a human body.
- Conventional technology is a laser light emitting device for mainly removing a diseased part of a protrusion in an animal tissue such as a human body.
- a hexagonal electric wire 51 (generally called a snare) is projected forward of the holder 50 to apply a high frequency to the electric wire.
- the affected part When using such an excision device, the affected part is positioned so that the affected part of the protrusion is located in the electric conductor 51, and then the electric conductor 51 is applied with high frequency, and the affected part is cut off by high-frequency heat. It is.
- a main object of the present invention is to provide a laser beam emitting device capable of performing excision under physiological saline and performing excision while controlling bleeding. Disclosure of the invention
- a laser beam emitting device for cutting a protrusion of an animal tissue, which has a substantially ring-shaped (open loop-shaped) portion, and the laser beam is directed to the ring-shaped portion in the cutting direction.
- a laser light emitting portion is provided, the light emitting portion being capable of emitting laser light in a direction opposite to the cutting direction of the emitting portion; and the emitting portion is provided with a laser light generating device. Optically connected.
- the outer periphery of the optical fiber is covered with a metal member in a cross section, and a part thereof is formed in a ring shape.
- An uncovered portion of the metal member is formed in the cutting direction portion, and the core of the optical fiber is exposed in the uncovered portion to form a laser light emitting portion.
- the envelope part other than the part is configured as the light emission regulating member.
- the protruding diseased part is excised by emitting laser light. Therefore, even if the laser beam is irradiated in a physiological saline solution, the target affected part can be safely removed without causing electrical shock and burns to the human body.
- bleeding can be controlled by adjusting the amount of laser light emitted, and also by the hemostasis effect associated with coagulation due to the use of laser light, which is extremely effective in removing bleeding tissue.
- FIG. 1 is a perspective view of the first embodiment
- FIG. 2 is a front view
- FIG. 3 is a view taken along a line — [— 1
- FIG. 4 is a view taken along a W—IV line
- FIG. FIG. 6 is a longitudinal sectional view of an essential part of the embodiment
- FIG. 7 is a plan view of the third embodiment
- FIGS. 8 and 9 are perspective views of still another embodiment
- FIG. 11 is a longitudinal sectional view of an example in which laser light is emitted through a light-transmitting ceramic material provided at the tip of a fiber.
- FIG. 11 is a plan view of a conventional example. BEST MODE FOR CARRYING OUT THE INVENTION
- the cutting tool 10 includes parallel gripping portions 11A and 1IB, and a ring-shaped portion 12 that is integrally connected to the gripping portions 11A and 1IB.
- the ring-shaped portion according to the present invention does not mean a closed ring but an open ring, and is actually an open loop.
- the ring-shaped portion 12 projects in a substantially U-shape downward from the tips of the gripping portions 11A and 11B.
- One end of the optical fiber for example, the other end of the optical fiber 11A is optically connected to a laser light generator (not shown).
- the ring-shaped portion 12 is formed with a laser light emitting portion L capable of emitting laser light in the cutting direction C of the projecting diseased portion M, and the laser light is emitted in a direction opposite to the cutting direction C of the emitting portion L.
- a light emission restricting member for restricting light emission is provided.
- an uncovered portion of the stainless steel tube 2 is formed in the output portion L, and the core of the optical fiber 1 is exposed in the uncovered portion to form the output portion L of the laser light.
- the wrapped portion other than the unwrapped portion of the stainless steel tube 2 is configured as the light emission control member according to the present invention.
- laser light generated from the laser light generator propagates through the optical fiber 11.
- the laser beam is enveloped by the stainless steel tube 2, it does not emit light except for the envelope portion.
- the stainless steel tube 2 is open in the cutting direction C at the emission part L, the laser light is emitted from the exposed part of the core of the optical fiber 11 as shown in FIG.
- the emitted laser light is applied to the affected area M, and the incision and resection of the affected area from its root is performed by the incision ability of the laser light.
- the resection tool of the present invention is usually cut while sequentially moving in the resection direction C while the operator holds the grip portions 11A and 11B.
- the core of the optical fiber 11 is directly covered with the stainless steel tube 2, but an optical fiber 11 whose core is covered with a clad may be used. It is necessary to remove the cladding and expose the core.
- the angle ⁇ formed between the gripping portions 11A and 11B and the emission portion L is preferably 45 to: I 20 degrees, particularly preferably 65 to 85 degrees.
- the parallel gripping portions 11A and 11B are formed and these are gripped.
- an emission part L may be formed at the tip.
- Reference numeral 15 denotes a holder provided as necessary to facilitate holding.
- a laser light reflecting portion 13 is provided at the end of the light emitting portion L, and the laser light is reflected by the reflecting portion 13 so that the optical fiber 1 1 can be prevented from being emitted from the end face, and can be emitted only from the side face of the optical fiber 1.
- the reflecting portion 13 can be configured by integrally providing a supporting member 14 at the tip of the stainless steel tube 2 and forming a reflecting material, for example, a gold plating layer on the inner surface thereof.
- the shape of the light emitting portion L is U-shaped when viewed from the left side of FIG. 2, but may be a circle, a trapezoid, a square, etc. (However, the upper part of the shape is not necessary. Continuous).
- FIG. 7 is a plan view of the third embodiment.
- a ring-shaped portion 12A is formed in a balloon shape.
- the ring-shaped portion 12A is formed by cutting out a part of the stainless steel tube 2 in the circumferential direction, and exposing the core of the optical fiber 1 in the cutout.
- the protruding diseased part is positioned in the ring-shaped part 12A, and is cut by laser beam irradiation while moving in the direction C in FIG. Things.
- the holder 20 may be omitted.
- the core of the optical fiber was covered with a metal material such as a stainless steel tube from the viewpoint of strength, but when not requiring much strength, the core was constituted by one optical fiber.
- the emission part can also be formed by cutting out the cladding at the part corresponding to the emission part and exposing the core.
- the cladding constitutes the emission restricting member according to the present invention.
- a light-transmitting ceramic or the like is provided at the tip of an optical fiber 30 having a core 30a and a cladding 30Ob.
- An emission member 31 having a circular cross section bent in a ring shape is provided, and a laser beam emitted from the tip of the core 30a of the optical fiber 30 is made incident on the emission member 31.
- Laser light may be emitted.
- Reference numeral 32 denotes a holder, and reference numeral 33 denotes a connector.
- Such an indirect incidence method of the laser beam can naturally be applied to the first and second embodiments.
- a laser light diffusing surface layer can be provided on the surface of the laser light emitting portion, if necessary.
- the surface layer can be formed by forming a laser light absorbing powder such as carbon and a light scattering powder such as Siri force having a higher refractive index than an emission member such as a core material with a binder.
- irregularities can be formed on the surface of the emission member in order to enhance the diffusivity.
- the device of the present invention can be used not only surgically, but also through a transmission hole of an endoscope device as in the above example, and can be used medically.
- excision under physiological saline can be performed without giving a shock to the human body, and excision can be performed while controlling bleeding.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90912952A EP0441978B1 (en) | 1989-09-01 | 1990-08-30 | Device for radiating laser beams |
DE69009976T DE69009976T2 (de) | 1989-09-01 | 1990-08-30 | Vorrichtung zum aussenden von laserstrahlen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1/227092 | 1989-09-01 | ||
JP1227092A JP3069108B2 (ja) | 1989-09-01 | 1989-09-01 | レーザ光の出射装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991003206A1 true WO1991003206A1 (fr) | 1991-03-21 |
Family
ID=16855367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1990/001108 WO1991003206A1 (fr) | 1989-09-01 | 1990-08-30 | Dispositif d'irradiation de faisceaux laser |
Country Status (11)
Country | Link |
---|---|
US (1) | US5151097A (ja) |
EP (1) | EP0441978B1 (ja) |
JP (1) | JP3069108B2 (ja) |
CN (1) | CN1051667A (ja) |
AT (1) | ATE107153T1 (ja) |
AU (1) | AU6281890A (ja) |
CA (1) | CA2038949A1 (ja) |
DE (1) | DE69009976T2 (ja) |
ES (1) | ES2057586T3 (ja) |
WO (1) | WO1991003206A1 (ja) |
ZA (1) | ZA906920B (ja) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5195958A (en) * | 1990-05-25 | 1993-03-23 | Phillips Edward H | Tool for laparoscopic surgery |
US5300063A (en) * | 1991-05-11 | 1994-04-05 | Nidek Co., Ltd. | Ophthalmic laser apparatus |
EP0523506B2 (de) * | 1991-07-17 | 2003-01-15 | Siemens Aktiengesellschaft | Handstück zur stomatologischen Applikation von Laserlicht |
US5688264A (en) * | 1992-10-19 | 1997-11-18 | The University Of Miami | Laser treatment for retinal detachment |
US5342358A (en) * | 1993-01-12 | 1994-08-30 | S.L.T. Japan Co., Ltd. | Apparatus for operation by laser energy |
US5451221A (en) * | 1993-12-27 | 1995-09-19 | Cynosure, Inc. | Endoscopic light delivery system |
US5668993A (en) | 1994-02-28 | 1997-09-16 | Teleflex Information Systems, Inc. | Multithreaded batch processing system |
US5476461A (en) * | 1994-05-13 | 1995-12-19 | Cynosure, Inc. | Endoscopic light delivery system |
US8025661B2 (en) | 1994-09-09 | 2011-09-27 | Cardiofocus, Inc. | Coaxial catheter instruments for ablation with radiant energy |
US6423055B1 (en) | 1999-07-14 | 2002-07-23 | Cardiofocus, Inc. | Phototherapeutic wave guide apparatus |
US5632767A (en) * | 1994-09-09 | 1997-05-27 | Rare Earth Medical, Inc. | Loop diffusers for diffusion of optical radiation |
US5637877A (en) * | 1995-06-06 | 1997-06-10 | Rare Earth Medical, Inc. | Ultraviolet sterilization of instrument lumens |
US5947959A (en) * | 1994-09-09 | 1999-09-07 | Rare Earth Medical, Inc. | Phototherapeutic apparatus with diffusive tip assembly |
US6676656B2 (en) * | 1994-09-09 | 2004-01-13 | Cardiofocus, Inc. | Surgical ablation with radiant energy |
US5908415A (en) * | 1994-09-09 | 1999-06-01 | Rare Earth Medical, Inc. | Phototherapy methods and apparatus |
US6558375B1 (en) * | 2000-07-14 | 2003-05-06 | Cardiofocus, Inc. | Cardiac ablation instrument |
US6270492B1 (en) | 1994-09-09 | 2001-08-07 | Cardiofocus, Inc. | Phototherapeutic apparatus with diffusive tip assembly |
US6579285B2 (en) * | 1994-09-09 | 2003-06-17 | Cardiofocus, Inc. | Photoablation with infrared radiation |
US8900219B2 (en) | 1999-07-14 | 2014-12-02 | Cardiofocus, Inc. | System and method for visualizing tissue during ablation procedures |
US7935108B2 (en) | 1999-07-14 | 2011-05-03 | Cardiofocus, Inc. | Deflectable sheath catheters |
US9033961B2 (en) | 1999-07-14 | 2015-05-19 | Cardiofocus, Inc. | Cardiac ablation catheters for forming overlapping lesions |
US8540704B2 (en) | 1999-07-14 | 2013-09-24 | Cardiofocus, Inc. | Guided cardiac ablation catheters |
US20040167503A1 (en) * | 1999-08-25 | 2004-08-26 | Cardiofocus, Inc. | Malleable surgical ablation instruments |
US20040147911A1 (en) * | 1999-08-25 | 2004-07-29 | Cardiofocus, Inc. | Surgical ablation instruments for forming an encircling lesion |
BR0312430A (pt) | 2002-06-19 | 2005-04-26 | Palomar Medical Tech Inc | Método e aparelho para tratamento de condições cutâneas e subcutâneas |
US7731715B2 (en) * | 2004-12-10 | 2010-06-08 | Edwards Lifesciences Corporation | Ablative treatment of atrial fibrillation via the coronary sinus |
US20060253025A1 (en) * | 2005-04-21 | 2006-11-09 | Kaufman Jonathan J | Ultrasonic Bone Assessment Apparatus and Method |
US7856985B2 (en) | 2005-04-22 | 2010-12-28 | Cynosure, Inc. | Method of treatment body tissue using a non-uniform laser beam |
DE102006016957B4 (de) * | 2006-04-11 | 2010-04-22 | Vimecon Gmbh | Laserapplikator |
US7586957B2 (en) | 2006-08-02 | 2009-09-08 | Cynosure, Inc | Picosecond laser apparatus and methods for its operation and use |
US8696653B2 (en) | 2009-10-02 | 2014-04-15 | Cardiofocus, Inc. | Cardiac ablation system with pulsed aiming light |
WO2011044248A2 (en) | 2009-10-06 | 2011-04-14 | Cardiofocus, Inc. | Cardiac ablation image analysis system and process |
WO2013114376A1 (en) | 2012-01-31 | 2013-08-08 | Asymmetric Medical Ltd. | Configuring optical fibers to emit radiation by bending |
EP2839552A4 (en) | 2012-04-18 | 2015-12-30 | Cynosure Inc | PICOSCOPE LASER DEVICE AND METHOD FOR THE TREATMENT OF TARGET FABRICS THEREWITH |
US10285757B2 (en) | 2013-03-15 | 2019-05-14 | Cynosure, Llc | Picosecond optical radiation systems and methods of use |
EP3137007A4 (en) | 2014-04-28 | 2017-09-27 | Cardiofocus, Inc. | System and method for visualizing tissue with an icg dye composition during ablation procedures |
EP3226744A4 (en) | 2014-12-03 | 2018-08-08 | Cardiofocus, Inc. | System and method for visual confirmation of pulmonary vein isolation during ablation procedures |
WO2019165426A1 (en) | 2018-02-26 | 2019-08-29 | Cynosure, Inc. | Q-switched cavity dumped sub-nanosecond laser |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5710648Y2 (ja) * | 1977-06-24 | 1982-03-02 | ||
JPS62202815U (ja) * | 1986-06-13 | 1987-12-24 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4126136A (en) * | 1976-02-09 | 1978-11-21 | Research Corporation | Photocoagulating scalpel system |
US4240431A (en) * | 1977-05-16 | 1980-12-23 | Olympus Optical Co., Ltd. | Laser knife |
DE2821376C3 (de) * | 1977-05-16 | 1981-02-19 | Olympus Optical Co., Ltd., Tokio | Laser-Instrument zum Ätzen oder Veröden eines Gewebeteils innerhalb des Zöloms |
US4266547A (en) * | 1977-05-16 | 1981-05-12 | Olympus Optical Co., Ltd. | Laser knife |
US4249533A (en) * | 1977-05-16 | 1981-02-10 | Olympus Optical Co., Ltd. | Laser knife |
US4273127A (en) * | 1978-10-12 | 1981-06-16 | Research Corporation | Method for cutting and coagulating tissue |
JPS5810039A (ja) * | 1981-07-13 | 1983-01-20 | 住友電気工業株式会社 | レ−ザメス用ハンドピ−ス |
US4693244A (en) * | 1984-05-22 | 1987-09-15 | Surgical Laser Technologies, Inc. | Medical and surgical laser probe I |
US4736743A (en) * | 1986-05-12 | 1988-04-12 | Surgical Laser Technology, Inc. | Vaporization contact laser probe |
JPS63216579A (ja) * | 1987-03-05 | 1988-09-08 | 大工園 則雄 | 温熱治療のためのレ−ザ光照射装置 |
JP2671016B2 (ja) * | 1988-07-08 | 1997-10-29 | サージカル・レーザー・テクノロジーズ・インコーポレイテッド | 生体組織内狭隘路におけるレーザ治療装置 |
-
1989
- 1989-09-01 JP JP1227092A patent/JP3069108B2/ja not_active Expired - Lifetime
-
1990
- 1990-08-28 US US07/573,563 patent/US5151097A/en not_active Expired - Fee Related
- 1990-08-30 AT AT90912952T patent/ATE107153T1/de not_active IP Right Cessation
- 1990-08-30 CA CA002038949A patent/CA2038949A1/en not_active Abandoned
- 1990-08-30 ES ES90912952T patent/ES2057586T3/es not_active Expired - Lifetime
- 1990-08-30 ZA ZA906920A patent/ZA906920B/xx unknown
- 1990-08-30 WO PCT/JP1990/001108 patent/WO1991003206A1/ja active IP Right Grant
- 1990-08-30 DE DE69009976T patent/DE69009976T2/de not_active Expired - Fee Related
- 1990-08-30 AU AU62818/90A patent/AU6281890A/en not_active Abandoned
- 1990-08-30 EP EP90912952A patent/EP0441978B1/en not_active Expired - Lifetime
- 1990-08-31 CN CN90108169A patent/CN1051667A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5710648Y2 (ja) * | 1977-06-24 | 1982-03-02 | ||
JPS62202815U (ja) * | 1986-06-13 | 1987-12-24 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0441978A4 * |
Also Published As
Publication number | Publication date |
---|---|
ATE107153T1 (de) | 1994-07-15 |
ZA906920B (en) | 1991-06-26 |
JPH0390143A (ja) | 1991-04-16 |
EP0441978A1 (en) | 1991-08-21 |
CN1051667A (zh) | 1991-05-29 |
ES2057586T3 (es) | 1994-10-16 |
AU6281890A (en) | 1991-04-08 |
JP3069108B2 (ja) | 2000-07-24 |
EP0441978A4 (en) | 1992-04-22 |
CA2038949A1 (en) | 1991-03-02 |
EP0441978B1 (en) | 1994-06-15 |
US5151097A (en) | 1992-09-29 |
DE69009976D1 (de) | 1994-07-21 |
DE69009976T2 (de) | 1995-03-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1991003206A1 (fr) | Dispositif d'irradiation de faisceaux laser | |
JP3148216B2 (ja) | レーザ光照射による治療装置 | |
JPH02213804A (ja) | レーザ光出射装置 | |
AU2010298670B2 (en) | Twister fiber optic systems and their use in medical applications | |
US5380317A (en) | Medical device applying localized high intensity light and heat, particularly for destruction of the endometrium | |
JP3073994B2 (ja) | 放射角度可変レーザー照射装置 | |
US20060009763A1 (en) | Tissue treatment system | |
JP3145379B2 (ja) | レーザ導光プローブ | |
US20020183728A1 (en) | Laser probe | |
JPH067835B2 (ja) | 内科および外科用レ−ザ探針 | |
JP2004519263A (ja) | 細長い先端を備えた外科用レーザーメス | |
JPS6045529B2 (ja) | レ−ザ外科用器具 | |
EP0374243B1 (en) | Medical device applying localized high intensity light and heat, particularly for destruction of the endometrium | |
JPH06205789A (ja) | レーザー光による手術装置 | |
GB2423714A (en) | Skin treatment device | |
RU2038106C1 (ru) | Лазерное излучающее устройство для медицинской обработки | |
JP3813760B2 (ja) | 医療用又は歯科用の光照射チップ及びレーザ照射装置 | |
JP6746627B2 (ja) | レーザー照射用補助部材、ハンドピース | |
JP2020151564A (ja) | レーザー照射用補助部材、ハンドピース | |
JPH0542165A (ja) | 弁輪切開用カテーテル | |
JPH0412745A (ja) | レーザプローブ | |
JPS6047850B2 (ja) | レ−ザ−ナイフ | |
JPH05212050A (ja) | レーザプローブ | |
Ho et al. | Perspectives of transurethral robotic laser resection of the prostate: vaporization and coagulation effects with the Nd: YAG laser | |
JPS5922526B2 (ja) | レ−ザメス |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU CA KR SU |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2038949 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1990912952 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1990912952 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1990912952 Country of ref document: EP |