Intubation devices with local anesthetic effect for medical use
January 18, 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 ReferencesAssembly for mounting a vehicle spray suppression device Compositions of polyvinyl chloride and tetracarboxylic tetraesters and medical articles thereof Infection-resistant materials and method of making same through use of sulfonamides Elastomeric composition containing therapeutic agents and articles manufactured therefrom Drug bonded prosthesis and process for producing same Antimicrobial device and method Laryngo-tracheal analgesia endotracheal tube Vascular graft with absorbable and nonabsorbable components Patent #: 4997440 InventorApplicationNo. 527593 filed on 05/23/1990US Classes:604/265, With body soluble, antibactericidal or lubricating materials on conduit604/93.01Material introduced or removed through conduit, holder, or implantable reservoir inserted in bodyExaminersPrimary: Rosenbaum, C. FredAssistant: Smith, Chalin Attorney, Agent or FirmInternational ClassesA61M 005/32A61M 025/00 AbstractA compound with topical anesthetic properties is incorporated in polymeric material making up the wall of a tube of intubation devices for introduction into body passages of an animal. A hydrophobic anesthetic compound is used which is more soluble in the polymeric wall material of the tube than in water. Because of the hydrophobic properties of the anesthetic compound, a quantity of anesthetic compound can be stored in solution in the polymeric wall material of the tube and this stored anesthetic compound is not washed out by the aqueous fluid which is present in the body passage. As a result, the anesthetic compound is transferred only to the contiguous tissue of the body passage and not disseminated systemically through the aqueous fluids. When the tube is in place within a body passage the anesthetic compound diffuses to the surface of body tissue touched by the tube where its anesthetic effect suppresses discomfort and undesired rejection reactions. Since the anesthetic compound is thus dispensed only to the contiguous tissue of the body passage, the quantity of anesthetic compound stored in the tube wall is sufficient to maintain effective anesthesia of the body passage for hours or days, and undesired effects of a general dissemination through the body are avoided.Other References
Field of SearchHaving means for indicating device is defective , used, or tampered withHaving means for desensitizing skin By rachet and pawl Body inserted tubular conduit structure (e.g., needles, cannulas, nozzles, trocars, catheters, etc.) With body soluble, antibactericidal or lubricating materials on conduit | |
