A dilation bougie for treating oesophageal strictures comprises a flexible silicone rubber tube (16) with an enclosed space extending proximally from a tapered distal tip (18) and filled with homogeneous material (28), pref. W particles in silicone fluid, so that the bougie is radio-opaque and sufficiently heavy to provide dilation. The particles are pref. 15-100mu in size and are present in an amount such that the material density is 9.5 g/cm3. The particles are pref. suspended in a mixture 45 wt.% liquid silicone rubber and 55% silicone fluid.
申请公布号
DE69413171(D1)
申请公布日期
1998.10.15
申请号
DE1994613171
申请日期
1994.10.25
申请人
PILLING CO., FORT WASHINGTON, PA., US
发明人
JONES, RICHARD G., PENNSYLVANIA 19380, US;MINER, JEFFREY A., MICHIGAN 48657, US