Intravascular catheter with axial member

Details Intravascular catheter with axial member Intravascular catheter with axial member

2005-09-13

2005-09-13

Lucchesi, Nicholas D. (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

C138S127000, C623S001130

Reexamination Certificate

active

06942654

ABSTRACT:
An intravascular catheter having a shaft, at least a portion of which includes a braid reinforcement with an axial wire or fiber disposed between the helical members that form the braid. The axial member prevents the elongation of the shaft of the catheter thereby maintaining one-to-one correspondence in axial manipulation of the catheter, even when the shaft is placed in tension. By positioning the axial member between the helical members, the axial member does not create a protrusion and does not become fixed to any adjacent polymer layer. Thus, the axial member limits axial strain of the catheter, without creating the undesirable effects of friction caused by an axial protrusion and without creating the undesirable effects of limited flexure caused by an adjacent polymer layer becoming fixed to the axial member.

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