Multilayered catheter shaft containing polyvinylidene fluoride polymers
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsXiaoping Guo, David P. Johnson
Life of this patent
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Abstract
In various embodiments of the present disclosure, a surgical catheter is provided. The present disclosure provides a catheter shaft that includes a distal portion and a proximal portion. The proximal portion comprises a handle operably connected to the distal portion of the elongated structure. The distal portion three radially positioned polymeric layers. At least two of the layers include chemically dissimilar polymers and at least one of the three layers includes functionalized polyvinylidene fluoride (PVDF).
Claims27
A catheter comprising the following:
- an elongated structure, wherein the elongated structure has a distal portion and a proximal portion:
- a handle operably connected to a proximal end of the proximal portion of the elongated structure;
- and
- wherein the distal portion comprises a shaft, wherein the shaft comprises three radially positioned polymeric layers, wherein at least two of the three layers include chemically dissimilar polymers and at least one of the three layers includes functionalized polyvinylidene fluoride (PVDF).
A catheter shaft configured to be inserted into a patient's body, the catheter shaft comprising the following:
- an elongated structure, wherein the elongated structure has a distal portion and a proximal portion;
- a handle operably connected to the proximal end of the proximal portion;
- and
- wherein the distal portion comprises a shaft, wherein the shaft comprises an inner polymeric layer;
- a middle polymeric layer bonded to the inner polymeric layer;
- and an outer polymeric layer bonded to the middle polymeric layer, wherein one of the layers includes functionalized polyvinylidene fluoride (PVDF).
A catheter shaft, comprising the following:
- a proximal segment;
- a handle operatively connected to the proximal segment;
- a transitional segment;
- and
- a distal segment;
- wherein each of the proximal segment, the transitional segment, and the distal segment has an inner polymeric layer, a middle polymeric layer, and an outer polymeric layer, wherein at least one of the layers in the transitional segment is formed of functionalized polyvinylidene fluoride (PVDF), and wherein at least one of the layers in the distal segment is formed of functionalized PVDF.
Dependencies are inferred from the claim text.