| 摘要 |
This invention concerns a multilayer tubular body for the manufacture of catheter devices, which comprises an outer layer (11) having certain mechanical properties and weldability, an inner layer (12) with lubricious characteristics and forming at least one longitudinal lumen, and one intermediate bonding layer (13) between the outer and inner layers. The intermediate bonding layer (13) is, in cross-section, interrupted and in the form of spaced apart circular sectors, and the inner layer (11) has on the inside portions which alternate with the sectors in the intermediate layer (13).
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