Volumetrically oscillating plasma flows, the volume of which controllably expands and contracts with time, are disclosed. Volumetrically oscillating plasma flows are generated by providing an energy with a power density that changes with time to the plasma-generating gas to form a plasma flow. The c
Volumetrically oscillating plasma flows, the volume of which controllably expands and contracts with time, are disclosed. Volumetrically oscillating plasma flows are generated by providing an energy with a power density that changes with time to the plasma-generating gas to form a plasma flow. The changes in the energy power density result in plasma flow volumetric oscillations. Volumetric oscillations with a frequency of above 20,000 Hz results in ultrasonic acoustic waves, which are known to be beneficial for various medical applications. System for providing volumetrically oscillating plasma flows and a variety of surgical non-surgical applications of such flows are also disclosed.
대표청구항▼
1. A method of generating a volumetrically oscillating plasma flow using a plasma-generating-device having an outlet, the method comprising: a. supplying a plasma-generating gas to the plasma-generating device;b. providing an energy with a power density to the plasma-generating gas to form the plasm
1. A method of generating a volumetrically oscillating plasma flow using a plasma-generating-device having an outlet, the method comprising: a. supplying a plasma-generating gas to the plasma-generating device;b. providing an energy with a power density to the plasma-generating gas to form the plasma flow, wherein the power density changes according to a controlled pattern between a low level and a high level; andc. discharging from the outlet of the plasma-generating device the plasma flow alternating between i. a low intensity plasma flow with a temperature at the outlet of at least 10,000 K and occupying a first volume, andii. a high intensity plasma flow with a temperature at the outlet of at least 10,000 K above the temperature of the low intensity plasma at the outlet and occupying a second volume larger than the first volume,wherein volumetric oscillations of the plasma flow due to the discharge of low intensity plasma flow and high intensity plasma flow correlate with the controlled pattern changes between the low level and the high level of the power density of the provided energy. 2. The method of claim 1, wherein the controlled pattern is a modulated biased pulse wave, wherein a high frequency biased pulse wave is modulated by a low frequency biased pulse wave. 3. The method of claim 2, wherein the discharged plasma undergoes radial volumetric variations and large-scale axial volumetric variations. 4. The method of claim 2, wherein the energy is provided by an electric arc passing through the plasma-generating gas. 5. The method of claim 4 further comprising generating an electric current wave, wherein the current changes according to the controlled pattern. 6. The method of claim 5 further comprising monitoring a flow rate of the plasma-generating gas. 7. The method of claim 4, wherein the electric arc has a low level current of 3-10 A and a high level current of 25-30 A. 8. The method of claim 7, wherein the frequency of the high-frequency biased pulse wave is 20,000 Hz or above. 9. The method of claim 8, wherein the duty cycle of the high-frequency biased pulse wave is 0.35-0.65. 10. The method of claim 9, wherein the frequency of the low-frequency biased pulse wave is 20-100 Hz. 11. The method of claim 10, wherein the duty cycle of the low-frequency biased pulse wave is 0.05-0.15. 12. The method of claim 11, wherein the plasma-generating gas is supplied to the plasma-generating device at a flow rate of 0.1-0.6 L/min at room temperature. 13. The method of claim 12, wherein the discharged plasma undergoes large-scale axial volumetric variations. 14. The method of claim 1, wherein the controlled pattern is a biased pulse wave. 15. The method of claim 14, wherein the discharged plasma undergoes radial volumetric variations. 16. The method of claim 14, wherein the energy is provided by an operational current of an intermittent plasma flow. 17. The method of claim 14, wherein the energy is provided by an electric arc passing through the plasma-generating gas. 18. The method of claim 17, wherein the frequency of the biased pulse wave is 2,000 Hz or above. 19. The method of claim 17, wherein the electric arc has a low level of current of 3-10 A and a high level of current of 25-30 A. 20. The method of claim 19, wherein the frequency of the biased pulse wave is 20-200 Hz. 21. The method of claim 20, wherein the duty cycle of the biased pulse wave is 0.05-0.15. 22. The method of claim 21, wherein the plasma-generating gas is supplied to the plasma-generating device at a flow rate of 0.1-0.6 L/min at room temperature. 23. The method of claim 17, wherein the frequency of the biased pulse wave is 20,000 Hz or above. 24. The method of claim 23, wherein the duty cycle of the biased pulse wave is 0.05-0.15. 25. The method of claim 24, wherein the plasma-generating gas is supplied to the plasma-generating device at a flow rate of 0.1-0.6 L/min at room temperature. 26. The method of claim 17 further comprising generating an electric current wave, wherein the current changes according to the controlled pattern. 27. The method of claim 26 further comprising monitoring a flow rate of the plasma-generating gas.
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Delcea Lucian Bogdan,CAX, Anode electrode for plasmatron structure.
Paton, Boris E.; Lebedev, Vladimir K.; Vorona, David S.; Karchemsky, Volodimir I.; Furmanov, Yuri A.; Lebedev, Alexsey V.; Vasilchenko, Valery A.; Sidorenko, Dmitry F.; Iemchenko-Ribko, Vitaly P.; Iv, Bonding of soft biological tissues by passing high frequency electric current therethrough.
Samuels Peter B. (14708 Sutton St. Sherman Oaks CA 91403) Wood Ernest C. (2461 Ivanhoe Dr. Los Angeles CA 90039), Cartridge for a surgical clip applying device.
Doolette Ashley G. (Thornbury AUX) Oppenlander Walter T. (Greensborough AUX) Ramakrishnan Subramania (Glen Waverly AUX), Electric arc generating device having three electrodes.
McGreevy Francis T. (Aurora CO) Bertrand Carol (Englewood CO) Hahn Karl W. (Englewood CO), Electrosurgical conductive gas stream technique of achieving improved eschar for coagulation.
Yates David C. (West Chester OH) Kuhns Jesse J. (Cincinnati OH) Mersch Steven H. (Germantown OH) Madden Martin (Loveland OH) Nuchols Richard P. (Loveland OH), Electrosurgical hemostatic device.
Irons Gary C. (Sea Cliff NY) Klein John F. (Port Washington NY) Lander Richard D. (Lloyd Harbor NY) Thompson Henry C. (Huntington Bay NY) Trapani Richard D. (New York NY), Heavy duty plasma spray gun.
LaSalle Richard Todd ; Crivello ; III Salvatore F. ; Kutsch V. Kim, Method of use for supersonic converging-diverging air abrasion nozzle for use on biological organisms.
Pettit ; Jr Harold W. (West Palm Beach FL) Davis Charles G. (Jupiter FL) Walden Frederick C. (Jensen Beach FL), Multiple port plasma spray apparatus and method for providing sprayed abradable coatings.
Byrnes, Larry Edward; Sumner, Leslie K.; Toth, Peter J.; Kramer, Martin Stephen; Oberkampf, William L.; Teets, Richard Earl; Valerius, II, Charles D., Nozzle assembly for HVOF thermal spray system.
Bernecki Thomas F. (Elmont NY) Varley Kevin J. (Hicksville NY) Rusch William P. (Lake Ronkonkoma NY) Wlodarczyk Janusz (Jackson Heights NY) Klein John F. (Port Washington NY), Plasma gun with adjustable cathode.
Bouchier Guy (106 rue Jean-Jaurs Saint Laurent ; 77440 Lizy sur Ourcq FRX) Lhuisset Francois (Pavillon 19 ; 14ter rue des Valles 91800 Brunoy FRX), Plasma scalpel.
Fuimefreddo Anthony J. (Bellmore NY) Nerz John E. (Seldon NY) Hacker Martin E. (Lake Ronkonkoma NY) Hain Gunther (Dix Hills NY), Plasma spray device with external powder feed.
Beason ; Jr. George P. (Arab AL) McKechnie Timothy N. (Huntsville AL) Power Christopher A. (Guntersville AL), Plasma spray nozzle with low overspray and collimated flow.
Trapani Richard D. (147-10 41 Ave. Flushing NY 11355) Tilkaran Roopnarine (130-45 127 St. South Ozone Park NY 11420) Mercurio Joseph P. (1018 Park Lane E. Franklin Square NY 11010) Budke ; Jr. Henry , Powder injection apparatus for a plasma spray gun.
English George J. (North Reading MA) Rothwell ; Jr. Harold L. (Georgetown MA) Garrity ; Jr. Donald F. (Chester NH), Pulsed metal halide arc discharge light source.
Browning James A. (P.O. Box 6 Hanover NH 03755), Transferred-arc plasma apparatus and process with gas heating in excess of anode heating at the workpiece.
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