Ablation of blood thrombi by means of acoustic energy
First Claim
1. A method for the non-invasive selective in vivo lysis of blood clots (thrombi) in mammals without damaging blood vessels containing said blood clots, said method comprising the step of applying, by means of an acoustic energy generator, high power focused acoustic energy in a focal area in which said blood vessels containing such thrombus are located, said focused acoustic energy being applied at a level above the cavitation threshold of the blood until the lysis is attained,wherein said acoustic energy generator produces a predetermined ultrasound frequency in the range of about 1 KHz to 5 MHz.
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Abstract
A method and device for selective in vivo ablation of fresh blood thrombi by means of non-invasive focused high power acoustic energy. The method comprises applying a plurality of pulses of high energy acoustic waves or a continuous acoustic wave, focused at the location of a thrombus in a blood vessel, resulting in the ablation of the thrombus, and restoration of blood flow. There is also provided a device for the controlled generation and application of focused pulsed, or continuous, acoustic energy waves of predetermined energy and frequency.
380 Citations
10 Claims
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1. A method for the non-invasive selective in vivo lysis of blood clots (thrombi) in mammals without damaging blood vessels containing said blood clots, said method comprising the step of applying, by means of an acoustic energy generator, high power focused acoustic energy in a focal area in which said blood vessels containing such thrombus are located, said focused acoustic energy being applied at a level above the cavitation threshold of the blood until the lysis is attained,
wherein said acoustic energy generator produces a predetermined ultrasound frequency in the range of about 1 KHz to 5 MHz.
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9. A method for the non-invasive selective in vivo lysis of blood clots (thrombi) in mammals without damaging blood vessels containing said blood clots, said method comprising the step of applying, by means of an acoustic energy generator, high power focused acoustic energy in a focal area in which said blood vessels containing such thrombus are located, said focused acoustic energy being applied at a level above the cavitation threshold of the blood until the lysis is attained,
wherein said acoustic energy generator produces a shock wave.
Specification