High-frequency tissue ablation using coated electrodes
OwnerAssaf GOVARI, Christopher Thomas BEECKLERinventors
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Abstract
A method for fabricating a medical device includes providing a metal electrode to be used in applying electrical energy to biological tissue and specifying a frequency at which the electrical energy is to be applied. A thickness of a ceramic coating to be applied to the metal electrode is identified so as to reduce an electrical impedance between the metal electrode and the tissue at the specified frequency by a specified amount. The ceramic coating is deposited over the metal electrode to the identified thickness, and the metal electrode is assembled onto a probe for application to the biological tissue.
Claims16
A method for fabricating a medical device, the method comprising:
- providing a metal electrode to be used in applying electrical energy to biological tissue;
- specifying a frequency at which the electrical energy is to be applied;
- identifying a thickness of a ceramic coating to be applied to the metal electrode that will reduce an electrical impedance between the metal electrode and the tissue at the specified frequency by a specified amount;
- depositing the ceramic coating over the metal electrode to the identified thickness;
- and
- assembling the metal electrode onto a probe for application to the biological tissue.
A system for medical treatment, the system comprising:
- a signal generator, which is configured to generate electrical energy at a specified frequency for application to biological tissue;
- a probe comprising a metal electrode, which is configured to be applied to the biological tissue and is coupled to receive the electrical energy from the signal generator;
- and
- a ceramic coating disposed over the metal electrode with a thickness selected so as to reduce an electrical impedance between the metal electrode and the tissue at the specified frequency by a specified amount.
Dependencies are inferred from the claim text.