US5755751A
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Method and apparatus for therapeutic electromagnetic treatment
Assignee: ESC Medical Systems Ltd
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Filing: 1995-06-07
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Granted: 1998-05-26
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Expires: 2015-06-07
Abstract
Abstract A therapeutic treatment method includes the steps of providing a pulsed incoherent light output for treatment, directing the pulsed light output to a treatment area, transmitting the pulsed light output through the epidermis at the treatment area, heating the epidermis to a temperature below the temperature at which the epidermis is damaged, and coagulating blood in blood vessels disposed below the epidermis.
Inventors
- 👤 Shimon Eckhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:43
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/06; H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/34; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/203; A61B17/00; A61B2017/00017; A61B2017/00022; A61B2017/00057; A61B2017/00137; A61B2017/00154; A61B2017/00172; A61B2018/00005; A61B2018/00011; A61B2018/00029; A61B2018/00315; A61B2018/00452; A61B2018/1807
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
97 words
A method for coagulating blood in a blood vessel lying below an epidermal layer, comprising the steps of: generating a pulse of electromagnetic energy; varying the wavelength of electromagnetic energy; applying the pulse to the epidermal layer at a rate and for a time insufficient to heat the epidermal layer to a first temperature at which the epidermal layer is damaged, and sufficient to heat the blood vessel to a second temperature greater than the first temperature; controlling a delay between the pulse and a subsequent pulse of electromagnetic energy; and coagulating blood in the blood vessel.
Claim 2
Independent Claim
97 words
A method for coagulating blood in a blood vessel lying below an epidermal layer, comprising the steps of: generating a pulse of electromagnetic energy; varying the wavelength of electromagnetic energy; applying the pulse to the epidermal layer at a rate and for a time insufficient to heat the epidermal layer to a first temperature at which the epidermal layer is damaged, and sufficient to heat the blood vessel to a second temperature greater than the first temperature; controlling a delay between the pulse and a subsequent pulse of electromagnetic energy; and coagulating blood in the blood vessel.
Claim 3
Dependent Claim
36 words
The method of claim 1 wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy in the range of 300 to 1000 nanometers wavelength to the epidermal layer.
Claim 4
Dependent Claim
49 words
The method of claim 2 wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy having wavelengths in the range of 520 to 650 nanometers, and wherein the blood vessel is an artery having a diameter of less than 0.1 millimeters.
Claim 5
Dependent Claim
49 words
The method of claim 2 wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy having wavelengths in the range of 520 to 700 nanometers, and wherein the blood vessel is a vein with a diameter of less than 0.1 millimeters.
Claim 6
Dependent Claim
47 words
The method of claim 2 wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy having wavelengths in the range of 550 to 1000 nanometers, and wherein the blood vessel has a diameter of between 0.1 and 1.0 millimeters.
Claim 7
Dependent Claim
46 words
The method of claim 2, wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy having wavelengths in the range of 600 to 1000 nanometers, and wherein the blood vessel has a diameter of more than 1.0 millimeters.
Claim 8
Dependent Claim
34 words
The method of claim 2, wherein the step of applying the pulse to the epidermal layer includes a step of applying the pulse to an epidermal surface area of at least 0.3 square centimeters.
Claim 9
Dependent Claim
32 words
The method of claim 2, wherein the step of applying the pulse to an epidermal surface area includes a step of applying a first pulse to a substantially rectangular epidermal surface area.
Claim 10
Dependent Claim
35 words
The method of claim 2, wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having an energy fluence of between 6 and 300 J/cm 2 .
Claim 11
Dependent Claim
35 words
The method of claim 9, wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having an energy fluence of between 6 and 20 J/cm 2 .
Claim 12
Dependent Claim
48 words
The method of claim 9, further comprising the step of providing a gel on the epidermal layer and wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having an energy fluence of between 30 and 50 J/cm 2 .
Claim 13
Dependent Claim
35 words
The method of claim 9, wherein the step of applying the pulse to the epidermal layer includes the step of applying the pulse having an energy fluence of between 30 and 100 J/cm 2 .
Claim 14
Dependent Claim
33 words
The method of claim 7, wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having a duration of between 5 microseconds and 100 milliseconds.
Claim 15
Dependent Claim
45 words
The method of claim 13, wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having a duration of between 1 and 20 milliseconds, and wherein the blood vessel has a diameter of less than 0.1 millimeters.
Claim 16
Dependent Claim
24 words
The method as recited in claim 1, wherein the step of generating a pulse of electromagnetic energy includes a step of pulsing a flashlamp.
Claim 17
Dependent Claim
26 words
The method as recited in claim 15, wherein the step of varying the wavelength includes a step of controlling a current density provided to the flashlamp.
Claim 18
Dependent Claim
25 words
The method as recited in claim 15, wherein the step of varying the wavelength includes a step of varying a capacitance coupled to the flashlamp.
Claim 19
Dependent Claim
43 words
The method as recited in claim 15, wherein the step of varying the wavelength includes a plurality of filters disposed between the flashlamp and the epidermal layer, the plurality of filters including a reflective filter located proximate the flashlamp and an absorption filter.
Claim 20
Independent Claim
93 words
A method for coagulating blood in a blood vessel lying below an epidermal layer, comprising the steps of: generating a pulse of electromagnetic energy; applying the pulse to the epidermal layer at a rate and for a time insufficient to heat the epidermal layer to a temperature at which the epidermal layer is damaged and sufficient to heat the blood vessel; pausing while the epidermis cools below the temperature achieved in the applying step; repeating the steps of generating, applying and pausing until the blood in the blood vessel is heated and coagulated.
Claim 21
Independent Claim
93 words
A method for coagulating blood in a blood vessel lying below an epidermal layer, comprising the steps of: generating a pulse of electromagnetic energy; applying the pulse to the epidermal layer at a rate and for a time insufficient to heat the epidermal layer to a temperature at which the epidermal layer is damaged and sufficient to heat the blood vessel; pausing while the epidermis cools below the temperature achieved in the applying step; repeating the steps of generating, applying and pausing until the blood in the blood vessel is heated and coagulated.
Claim 22
Dependent Claim
36 words
The method of claim 19 wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy in the range of 300 to 1000 nanometers wavelength to the epidermal layer.
Claim 23
Dependent Claim
49 words
The method of claim 20 wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy having wavelengths in the range of 520 to 650 nanometers, and wherein the blood vessel is an artery having a diameter of less than 0.1 millimeters.
Claim 24
Dependent Claim
49 words
The method of claim 20 wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy having wavelengths in the range of 520 to 700 nanometers, and wherein the blood vessel is a vein with a diameter of less than 0.1 millimeters.
Claim 25
Dependent Claim
47 words
The method of claim 20 wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy having wavelengths in the range of 550 to 1000 nanometers, and wherein the blood vessel has a diameter of between 0.1 and 1.0 millimeters.
Claim 26
Dependent Claim
46 words
The method of claim 20, wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy having wavelengths in the range of 600 to 1000 nanometers, and wherein the blood vessel has a diameter of more than 1.0 millimeters.
Claim 27
Dependent Claim
50 words
The method of claim 20, wherein the step of applying the pulse to the epidermal layer includes a step of applying electromagnetic energy having wavelengths in the range of 700 to 1000 nanometers, and wherein the step of pausing includes the step of pausing for between 10 and 50 milliseconds.
Claim 28
Dependent Claim
34 words
The method of claim 20, wherein the step of applying the pulse to the epidermal layer includes a step of applying the pulse to an epidermal surface area of at least 0.3 square centimeters.
Claim 29
Dependent Claim
32 words
The method of claim 20, wherein the step of applying the pulse to an epidermal surface area includes a step of applying a first pulse to a substantially rectangular epidermal surface area.
Claim 30
Dependent Claim
54 words
The method of claim 20, wherein the step of applying the pulse to the epidermal layer includes a step of applying a pulse having a first spectral energy distribution and wherein a subsequent step of applying the pulse includes the step of applying a pulse having a second spectrum different from the first spectrum.
Claim 31
Dependent Claim
41 words
The method of claim 28, wherein the step of applying a pulse having a second spectrum different from the first spectrum includes the step of applying a pulse having a second spectrum having a longer wavelength range than the first spectrum.
Claim 32
Dependent Claim
55 words
The method of claim 28, wherein the step of generating includes the step of conducting a first current through a plasma discharge radiation source, and wherein a subsequent step of generating includes the step of conducting a second current having a magnitude different from the magnitude of the first current through a plasma discharge device.
Claim 33
Dependent Claim
35 words
The method of claim 20, wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having an energy fluence of between 6 and 300 J/cm 2 .
Claim 34
Dependent Claim
35 words
The method of claim 31, wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having an energy fluence of between 6 and 20 J/cm 2 .
Claim 35
Dependent Claim
48 words
The method of claim 31, further comprising the step of providing a gel on the epidermal layer and wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having an energy fluence of between 30 and 50 J/cm 2 .
Claim 36
Dependent Claim
35 words
The method of claim 31, wherein the step of applying the pulse to the epidermal layer includes the step of applying the pulse having an energy fluence of between 30 and 100 J/cm 2 .
Claim 37
Dependent Claim
33 words
The method of claim 31, wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having a duration of between 5 microseconds and 100 milliseconds.
Claim 38
Dependent Claim
21 words
The method of claim 35, wherein the step of pausing includes the step of pausing for between 10 and 500 milliseconds.
Claim 39
Dependent Claim
45 words
The method of claim 35, wherein the step of applying the pulse to the epidermal layer includes the step of applying a pulse having a duration of between 1 and 20 milliseconds, and wherein the blood vessel has a diameter of less than 0.1 millimeters.
Claim 40
Dependent Claim
36 words
The method of claim 35, wherein the step of pausing includes the step of pausing for between 100 and 500 milliseconds, and wherein the blood vessel has a diameter of greater than 1 millimeter in diameter.
Claim 41
Dependent Claim
36 words
The method of claim 35, wherein the step of pausing includes the step of pausing for between 20 and 100 milliseconds, and wherein the vessel has a diameter of between 0.5 and 1 millimeter in diameter.
Claim 42
Dependent Claim
35 words
The method of claim 35, wherein the step of pausing includes the step of pausing for between 10 and 50 milliseconds, and wherein the blood vessel has a diameter of between 0.1 and 0.5 millimeters.
References Cited (Backward Citations)
US3693623A
Cited
US4298005A
Cited
US4022534A
Cited
US4686986A
Cited
US4784135A
Cited
US4608978A
Cited
US4829262A
Cited
US4757431A
Cited
US5259380A
Cited
US4930504A
Cited
DE3906860A1
Cited
US5161526A
Cited
US4950880A
Cited
US5320618A
Cited
US5207671A
Cited
US5217455A
Cited
US5344418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-25 | 2001-11-24 | 2002-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-25 | 2005-11-24 | 2006-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-25 | 2009-11-24 | 2010-05-26 | $7700.00 | Window Closed / Lapsed |