Method for iontophoretic treatment
Patent 4301794 Issued on November 24, 1981. Estimated Expiration Date: 
November 24, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 24, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2263205 3215139 Method of and apparatus for dental anesthesia Therapeutic method of using low intensity direct current generator with polarity reversal High voltage constant current source for iontophoresis Epidermal iontophoresis device Patent #: 4141359 InventorApplicationNo. 05/952341 filed on 10/18/1978US Classes:604/20Infrared, visible light, ultraviolet, X-ray or electrical energy applied to body (e.g., iontophoresis, etc.)ExaminersPrimary: Cohen, Lee S.Attorney, Agent or FirmInternational ClassesA61N 1/32 (20060101)A61N 1/18 (20060101) AbstractA method and apparatus for applying iontophoretic treatment to a living body is provided by which a unidirectional treatment current is periodically interrupted by a relatively short pulse of current in the opposite direction in order to prevent the formation of undesirable vesicles and bulla in the skin being treated. The apparatus and method are arranged to impose the treatment current gradually at the beginning of each treatment. | |
