Treatment of internal spaces using plasma generating device
AssigneeCAPS Medical Ltd.
InventorsIlan Oleg Uchitel, Boris Kogan
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Abstract
Plasma delivery tips of medical-grade plasma generating devices are configured to exclude potential contaminants while operating within body cavities. In some embodiments, delivery tips are provided with an antechamber, which is optionally filled by pressure of ionizing gas to prevent contamination. Some embodiments are provided with one or more interior and/or exterior valves configured to prevent proximal ingress of contamination to the longitudinal position of the discharge electrode, or at all into the gas delivery lumen. In some embodiments, an expandable distal section of the plasma delivery tip acts as a valve which seals when closed, and when open expands to generate an inflated antechamber into which plasma is delivered.
Claims20
A plasma delivery tip of a medical grade plasma generating device, the device configured for intrabody delivery of said tip through a working channel, comprising:
- a gas delivery lumen defined within a circumferential wall and having a proximal-to-distal axis, and along which a flow of ionization gas flows to a distal aperture of the gas delivery lumen;
- a discharge electrode, separated from said flow by a dielectric barrier, which transmits a high voltage to the flow of ionization gas when attached to a high voltage source;
- and
- a one way valve, positioned between the discharge electrode and the distal aperture to prevent proximal ingress of contamination to a longitudinal position of the discharge electrode along the proximal-to-distal axis, thereby preventing liquid contamination in a plasma generation region of the plasma delivery tip.
Dependencies are inferred from the claim text.