Patent US5172264A successfully refreshed from Google Patents.
US5172264A
Expired / Lapsed
US
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Method and apparatus for combining continuous wave laser with TEA pulsed laser
Assignee: Lumenis BE Ltd
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Filing: 1991-02-21
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Granted: 1992-12-15
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Expires: 2011-02-21
Abstract
Abstract An apparatus comprising a continuous wave (CW) laser and a transverse electrode atmospheric (TEA) pulsed laser, the continuous wave laser and transverse electrode atmospheric pulsed laser each producing laser beams, the laser beams from each of the lasers being provided to an optical mixer for combing the two laser beams into an output beam. The output beam can be either laser beam individually, or a combined coaxial beam wherein the CW laser beam and TEA pulsed laser beam are superimposed on each other. Preferably, the two lasers are CO 2 lasers. The CW laser can also be operated in a pulsed mode. The device is particularly useful for medical and surgical treatment and provides effects not possible before.
Inventors
- 👤 Clifford E. Morrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:27
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8802; A61B17/8847; A61B2017/00017; A61B2017/00137; A61B2017/00154; A61C; A61C1/00; A61C1/0046
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
82 words
An apparatus for surgery comprising a continuous wave (CW) carbon dioxide laser and a transverse electrode atmospheric (TEA) carbon dioxide pulsed laser, said continuous wave laser and said transverse electrode atmospheric pulsed laser each producing a laser beam, said laser beams from each of said lasers being provided to means for combining said two laser beams into an output beam, wherein said output beam comprises a laser beam having at least one of a continuous waveform and pulsed waveform or combination thereof.
Claim 2
Independent Claim
82 words
An apparatus for surgery comprising a continuous wave (CW) carbon dioxide laser and a transverse electrode atmospheric (TEA) carbon dioxide pulsed laser, said continuous wave laser and said transverse electrode atmospheric pulsed laser each producing a laser beam, said laser beams from each of said lasers being provided to means for combining said two laser beams into an output beam, wherein said output beam comprises a laser beam having at least one of a continuous waveform and pulsed waveform or combination thereof.
Claim 3
Dependent Claim
32 words
The apparatus recited in claim 1, wherein said means for combining comprises means for combining said laser beams from said TEA laser and said CW laser into a combined coaxial laser beam.
Claim 4
Dependent Claim
23 words
The apparatus recited in claim 1, wherein the output beam comprises a continuous wave beam and a pulsed beam superimposed on each other.
Claim 5
Dependent Claim
35 words
The apparatus recited in claim 1, wherein one of said CW laser and said TEA laser can be disabled such that the laser beam from each laser can be delivered individually to a treatment area.
Claim 6
Dependent Claim
19 words
The apparatus recited in claim 1, wherein outputs from said two lasers are delivered simultaneously to a treatment area.
Claim 7
Dependent Claim
16 words
The apparatus recited in claim 1, wherein said CW laser is operated in a pulse mode.
Claim 8
Dependent Claim
21 words
The apparatus recited in claim 6, wherein said pulse mode comprises one of a gain switched mode and Q switched mode.
Claim 9
Dependent Claim
27 words
The apparatus recited in claim 6, wherein pulse widths of at least one of the TEA laser and the CW laser operated in pulse mode are variable.
Claim 10
Dependent Claim
23 words
The apparatus recited in claim 7 wherein the timing of pulses from at least one of the TEA and CW laser are variable.
Claim 11
Independent Claim
59 words
A method for medical treatment comprising providing a continuous wave (CW) carbon dioxide laser and a transverse electrode atmospheric (TEA) carbon dioxide pulsed laser, generating laser beams from said continuous wave laser and said transverse electrode atmospheric pulsed laser, combining said two laser beams into an output beam, and providing the output beam to an area of medical treatment.
Claim 12
Independent Claim
59 words
A method for medical treatment comprising providing a continuous wave (CW) carbon dioxide laser and a transverse electrode atmospheric (TEA) carbon dioxide pulsed laser, generating laser beams from said continuous wave laser and said transverse electrode atmospheric pulsed laser, combining said two laser beams into an output beam, and providing the output beam to an area of medical treatment.
Claim 13
Dependent Claim
31 words
The method recited in claim 10, wherein said step of combining comprises combining each of said laser beams from said TEA laser and said CW laser into a combined coaxial beam.
Claim 14
Dependent Claim
22 words
The method recited in claim 10, wherein said step of combining comprises superimposing said CW and pulsed laser beams on each other.
Claim 15
Dependent Claim
35 words
The method recited in claim 10, further comprising disabling one of said CW laser and TEA laser such that the laser beam from each laser can be delivered individually to a site of medical treatment.
Claim 16
Dependent Claim
21 words
The method recited in claim 10, further comprising delivering outputs from said two lasers simultaneously to a site of medical treatment.
Claim 17
Dependent Claim
19 words
The method recited in claim 10, further comprising the step of operating said CW laser in a pulse mode.
Claim 18
Dependent Claim
28 words
The method recited in claim 15, wherein said step of operating comprises operating the CW laser in one of a gain switched mode and a Q switched mode.
Claim 19
Dependent Claim
27 words
The method recited in claim 10, wherein the pulse widths of at least one of the TEA laser and CW laser operated in pulse mode are variable.
Claim 20
Dependent Claim
23 words
The method recited in claim 10, wherein the timing of pulses from at least one of the TEA and CW laser are variable.
Claim 21
Dependent Claim
35 words
The apparatus of claim 1, wherein the continuous wave laser is operated in a pulsed waveform and said output beam has a waveform comprising a super pulse following a TEA pulse peak or visa versa.
References Cited (Backward Citations)
US3769963A
Cited
US4069823A
Cited
US4469098A
Cited
US4573465A
Cited
US4550240A
Cited
US4573467A
Cited
US4503854A
Cited
US4672969A
Cited
US5002051A
Cited
US4601037A
Cited
WO1987005794A1
Cited
US4940411A
Cited
US5067951A
Cited
US4982166A
Cited
US5062842A
Cited
US5084043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-15 | 1996-06-15 | 1996-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-15 | 2000-06-15 | 2000-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-15 | 2004-06-15 | 2004-12-15 | $7700.00 | Window Closed / Lapsed |