Patent ID: 8220462
Filing Date: 2012-07-17
Classification: A61M

Abstract:
1. A cuffed medical tube, comprising: a tubular shaft having a machine end and a patient end, the shaft including spaced apart annular attachment regions close to the patient end of the shaft, the shaft having a constant outer diameter except at the attachment regions, corresponding annular projections each having a diameter larger than the outer diameter of the shaft rising above the outer surface of the shaft at the respective ends of the annular attachment regions that are closer to each other; and an inflatable sealing cuff having opposite end collars extending coaxially along at least a part of the shaft that includes the annular attachment regions; wherein the end collars of the cuff are attached to the respective annular attachment regions of the shaft by an adhesive or solvent applied to the respective annular attachment regions so that an inflatable portion of the cuff is formed between the annular attachment regions; and wherein the corresponding annular projections above the surface of the shaft at the inner ends of the respective attachment regions restrict flow of the adhesive or solvent from the respective attachment regions to the inflatable portion of the cuff.