Medical tube to be inserted in body cavity
Patent 4799474 Issued on January 24, 1989. Estimated Expiration Date: 
March 9, 2007. 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.
March 9, 2007. 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 2124831 3558369 3890977 Endoscope having a temperature sensitive memory alloy plate as the treatment instrument driving device Endoscope with a memory shape alloy to control tube bending Patent #: 4601283 InventorApplicationNo. 07/023636 filed on 03/09/1987US Classes:600/151, Having temperature sensitive shape memory retaining material600/133, Sterilizable604/291, Means for cooling or heating material604/531Temperature activatedExaminersPrimary: Grieb, William H.International ClassesA61M 25/01 (20060101)A61B 1/005 (20060101) A61M 25/00 (20060101) Foreign Application Priority Data1986-03-13 JPAbstractA medical tube is used in an insertion portion of an endoscope and is inserted in a body cavity. The medical tube includes an outer tube having a front section, and a drive member arranged at the front section of the outer tube and having an elongated shape memory alloy adapted to have a transformation temperature such that a memorized shape is restored at the temperature higher than a temperature of heat applied to the shape memory alloy during sterilization of the medical tube. | |
