Tube/mandrel assemblies
AssigneeZeus Co., Ltd.
InventorsEdward H. Rast, III, Daniel Green, Dana Barringer, Denise Browne, Patrick Cooper
Life of this patent
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Abstract
The disclosure relates to assemblies of thin-walled tubes and mandrels for use in thin wall catheter liners. For example, an assembly is provided that includes a thin-walled PTFE tube comprising walls with a thickness of less than 0.004 inches, positioned over a filled mandrel comprising PTFE with one or more fillers incorporated therein. The disclosure further provides, independently, thin-walled tubes and filled mandrels, as well as methods of making and using such components.
Claims13
A tube having an inner surface, an outer surface, and an inner lumen, the tube comprising PTFE with a wall thickness less than 0.0040 inches, wherein the tube has a stress at break above 10,000 psi;
- and
- wherein the inner surface has a COF below 0.07 measured using a tribological test with sliding speeds against a stainless steel plate of 0.030 inches/s to 0.30 inches/s under an axial load of 0.225 lbf;
- and
- wherein the inner surface comprises patterning.
Dependencies are inferred from the claim text.