High frequency electroporation for cancer therapy
First Claim
1. A method of ablating tissue cells by non-thermal irreversible electroporation comprising:
- positioning one or more electrodes near a target area containing target tissue cells to be ablated;
applying a plurality of electrical pulses to the target area through the positioned electrodes by applying pulses at a frequency rate of 50 kHz or higher with each electrical pulse having a pulse width of 10 microseconds or less, so as to ablate the target tissue cells by non-thermal irreversible electroporation.
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Abstract
The present invention relates to the field of biomedical engineering and medical treatment of diseases and disorders. Methods, devices, and systems for in vivo treatment of cell proliferative disorders are provided. In embodiments, the methods comprise the delivery of high-frequency bursts of bipolar pulses to achieve the desired modality of cell death. More specifically, embodiments of the invention relate to a device and method for destroying aberrant cells, including tumor tissues, using high-frequency, bipolar electrical pulses having a burst width on the order of microseconds and duration of single polarity on the microsecond to nanosecond scale. In embodiments, the methods rely on conventional electroporation with adjuvant drugs or irreversible electroporation to cause cell death in treated tumors. The invention can be used to treat solid tumors, such as brain tumors.
825 Citations
16 Claims
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1. A method of ablating tissue cells by non-thermal irreversible electroporation comprising:
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positioning one or more electrodes near a target area containing target tissue cells to be ablated; applying a plurality of electrical pulses to the target area through the positioned electrodes by applying pulses at a frequency rate of 50 kHz or higher with each electrical pulse having a pulse width of 10 microseconds or less, so as to ablate the target tissue cells by non-thermal irreversible electroporation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification