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US 11,123,519 B2Granted
Layered tube for improved kink resistance
AssigneeBiosense Webster (Israel) Ltd.
InventorChristopher Thomas Beeckler
Life of this patent
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Abstract
A catheter shaft is produced by forming a first polymeric layer onto a flexible inner core while maintaining the inner core in a solid state, and solidifying the first polymeric layer, wherein the solidified first polymeric layer fails to bond with the inner core and is slidable thereon upon flexion of the shaft. A second polymeric layer may be formed over the first polymeric layer, and is slidable thereon when the shaft bends.
Claims9
A catheter shaft, comprising:
- a flexible inner core including a circumference;
- a first polymeric layer formed onto the flexible inner core such that the first polymeric layer includes an inner surface that contacts an entirety of the circumference;
- and
- a second polymeric layer formed onto and in contact with the first polymeric layer, wherein upon flexion of the flexible inner core, the first polymeric layer is slidable relative to the flexible inner core and the second polymeric layer,
- in which the catheter shaft comprises a portion of a medical catheter suitable for inserting into a patient.
2 more elements
Dependencies are inferred from the claim text.