Catheter for effecting removal of obstructions from a biological duct
September 30, 2005. 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 3589363 3792701 3913565 Flow control system Ultrasonic aspirator Intralenticular cataract surgery Bone cement nozzle and method Operative elliptical probe for ultrasonic surgical instrument and method of its use Method of use of an ultrasonic surgical pre-aspirator having a orifice by-pass Curved ultrasonic surgical aspirator InventorApplicationNo. 06/781927 filed on 09/30/1985US Classes:604/22, With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissue604/109, Expansion actuated by rotatable means (e.g, threaded or cammed member, etc.)604/19, MEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.)604/35, With aspirating or vacuum removing means604/42Axially adjustableExaminersPrimary: Pellegrino, Stephen C.Assistant: Ferros, John D. Attorney, Agent or FirmInternational ClassesA61B 17/22 (20060101)A61M 1/00 (20060101) A61B 17/32 (20060101) Foreign Application Priority Data1984-03-09 CAAbstractA catheter for insertion into a biological duct such as an artery, comprised of a flexible aspiration tube disposed within a delivery sleeve and connected at one end to a source of vacuum for providing suction within the duct in the vicinity of a biological obstruction, such as a blood clot. An injection tube extends through the aspiration tube for injecting medication into the duct, and an ultrasonic energy source also extends through the aspiration tube for transmitting ultrasound in the vicinity of the obstruction. The transmitted ultrasound and injected medication cooperate to emulsify and fragment the obstruction, and the fragmented obstruction is removed through the aspiration tube in response to suction being applied thereto. The catheter is compact and easily manipulable, providing substantial surgical accuracy.Field of SearchWith means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissueMEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.) With aspirating or vacuum removing means Axially adjustable Having means expanding body orifice or canal (e.g., dilator, retaining means, etc.) Expansion actuated by rotatable means (e.g, threaded or cammed member, etc.) Having structure for controlling depth of insertion of body piercer Conduit holder attached to another syringe component by thread means Expansion actuated by axially movable member Expanding arm or finger Rotatable means actuates axially movable member | |
