EP0207987A1 - Laser for the surgery of hard tissue - Google Patents
Laser for the surgery of hard tissueInfo
- Publication number
- EP0207987A1 EP0207987A1 EP19860900762 EP86900762A EP0207987A1 EP 0207987 A1 EP0207987 A1 EP 0207987A1 EP 19860900762 EP19860900762 EP 19860900762 EP 86900762 A EP86900762 A EP 86900762A EP 0207987 A1 EP0207987 A1 EP 0207987A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser
- surgery
- gas
- cuvette
- wavelength
- 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.)
- Ceased
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/1061—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using a variable absorption device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/22—Gases
- H01S3/223—Gases the active gas being polyatomic, i.e. containing two or more atoms
- H01S3/2232—Carbon dioxide (CO2) or monoxide [CO]
Definitions
- calibrated tissue has a typical absorption band at a wavelength around 9.6 ⁇ m. At this wavelength, a factor of 2 to is obtained compared to the previously used wavelength of 10.6 ⁇ m 10 improved energy coupling of the radiation, while on the other hand the water absorption does not change significantly.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Plasma & Fusion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Laser Surgery Devices (AREA)
Abstract
Un laser émettant sur la longueur d'onde 9,6 mum est utilisé pour la chirurgie des tissus durs, notamment des parties de tissu calcifiées. Particulièrement avantageux est un laser au CO2 comportant dans son résonateur une seconde cuve à gaz (5), dans laquelle on peut éventuellement faire le vide au moyen d'une pompe (8) ou qui peut être remplie, par l'intermédiaire d'une vanne (9), d'un gaz à absorption sélective sur 10,6 mum. Pour la chirurgie des tissus durs, la cuve à gaz (5) est remplie par ex. de SF6. Le laser émet alors sur 9,6 mum, longueur d'onde à laquelle l'accouplement énergétique du faisceau laser sur les tissus calcifiés est particulièrement bon. Lorsque la cuve à gaz (5) est vide d'air, le laser émet sur 10,6 mum et convient pour la chirurgie des tissus mous.A laser emitting on the wavelength 9.6 mum is used for hard tissue surgery, in particular parts of calcified tissue. Particularly advantageous is a CO2 laser comprising in its resonator a second gas tank (5), in which one can optionally create a vacuum by means of a pump (8) or which can be filled, by means of a valve (9), of a gas with selective absorption over 10.6 mum. For hard tissue surgery, the gas tank (5) is filled, for example. of SF6. The laser then emits on 9.6 mum, wavelength at which the energy coupling of the laser beam on calcified tissue is particularly good. When the gas tank (5) is empty of air, the laser emits on 10.6 mum and is suitable for soft tissue surgery.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853500900 DE3500900A1 (en) | 1985-01-12 | 1985-01-12 | LASER FOR MEDICAL TISSUE SURGERY |
DE3500900 | 1985-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0207987A1 true EP0207987A1 (en) | 1987-01-14 |
Family
ID=6259722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19860900762 Ceased EP0207987A1 (en) | 1985-01-12 | 1986-01-11 | Laser for the surgery of hard tissue |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0207987A1 (en) |
JP (1) | JPS62502170A (en) |
DE (1) | DE3500900A1 (en) |
WO (1) | WO1986003958A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3730563C2 (en) * | 1987-09-11 | 1994-07-07 | Aesculap Ag | Medical device for cutting or coagulating tissue |
GB9111611D0 (en) * | 1991-05-30 | 1991-07-24 | Sandoz Ltd | Liposomes |
DE19653546C1 (en) * | 1996-12-20 | 1998-07-16 | Jenoptik Jena Gmbh | Lasers with different emission directions |
IL120348A (en) | 1997-02-27 | 2002-11-10 | Laser Ind Ltd | Light protection system |
EP0864298A3 (en) * | 1997-03-14 | 2001-02-28 | Egawa Corporation | Tooth improving apparatus and tooth improving material |
JP4997452B2 (en) | 2006-08-22 | 2012-08-08 | 三菱電機株式会社 | Laser processing apparatus, bone joining method, implant material, implant material manufacturing method, and implant material manufacturing apparatus |
US8251984B2 (en) * | 2009-07-30 | 2012-08-28 | Convergent Dental, Inc. | Dental laser system using midrange gas pressure |
CA2825182C (en) * | 2011-02-02 | 2018-05-29 | Convergent Dental, Inc. | Dental laser system and treatment method |
US20200268447A1 (en) * | 2016-12-27 | 2020-08-27 | Sony Corporation | Medical laser irradiation device and medical laser irradiation method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3569859A (en) * | 1969-01-13 | 1971-03-09 | Us Navy | Laser system operable operable at different wavelengths |
DE2809007A1 (en) * | 1978-03-02 | 1979-09-13 | Messerschmitt Boelkow Blohm | Live tissue cutting and coagulating instrument - has two different wavelength laser beams and pilot light(s) passed together through manipulator to emerge coaxially from it |
-
1985
- 1985-01-12 DE DE19853500900 patent/DE3500900A1/en not_active Withdrawn
-
1986
- 1986-01-11 WO PCT/EP1986/000010 patent/WO1986003958A1/en not_active Application Discontinuation
- 1986-01-11 EP EP19860900762 patent/EP0207987A1/en not_active Ceased
- 1986-01-11 JP JP50075986A patent/JPS62502170A/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO8603958A1 * |
Also Published As
Publication number | Publication date |
---|---|
JPS62502170A (en) | 1987-08-27 |
WO1986003958A1 (en) | 1986-07-17 |
DE3500900A1 (en) | 1986-07-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT SE |
|
17P | Request for examination filed |
Effective date: 19870311 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: CARL ZEISS-STIFTUNG HANDELND ALS CARL ZEISS Owner name: FIRMA CARL ZEISS |
|
17Q | First examination report despatched |
Effective date: 19881206 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 19890903 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MUELLER, GERHARD |