Method of controlling drug release by resonant sound wave
Patent 5190766 Issued on March 2, 1993. Estimated Expiration Date: 
April 12, 2011. 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.
April 12, 2011. 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 ReferencesMethod for comminuting kidney stones Method for comminuting kidney stones Patent #: 4892089 InventorApplicationNo. 684386 filed on 04/12/1991US Classes:424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/491, Containing proteins and derivatives424/493, Containing polysaccharides (e.g., sugars)424/499, Contains proteins or derivative or polysaccharides or derivative604/22With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissueExaminersPrimary: Page, Thurman K.Assistant: Hulina, Amy Attorney, Agent or FirmInternational ClassA61K 009/52Foreign Application Priority Data1990-04-16 JPAbstractA drug carrier carrying a drug is introduced to a diseased region of the living body while it is observed in the B mode echograms. The drug carrier is irradiated with an ultrasonic wave for strongly vibrating the drug carrier, thereby releasing the drug from the drug carrier for curing the diseased portion.Other References
Field of SearchParticulate form (e.g., powders, granules, beads, microcapsules, and pellets)Containing proteins and derivatives Containing polysaccharides (e.g., sugars) Contains proteins or derivative or polysaccharides or derivative With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissue | |
