Moveable cuff
AssigneeCook Medical Technologies LLC
InventorMeridith Cavett
Life of this patent
Estimating the term…
Abstract
Disclosed is a catheter assembly that includes a catheter, a sheath on the catheter, a sleeve on the sheath and a tissue ingrowth cuff affixed to the sleeve. The sleeve and sheath are movable along the length of the catheter with the sheath being removable from between the sleeve and the catheter. When the sheath is removed, the sleeve becomes substantially fixed in position on the catheter. The sheath may have a comparatively low coefficient of friction against the catheter while the sleeve may have a comparatively high coefficient of friction against the catheter.
Claims21
A catheter assembly comprising:
- a catheter including an external surface and having an outer diameter;
- a sheath defining a first lumen, wherein the catheter passes through the first lumen and wherein the sheath has a comparatively low coefficient of friction against the external surface of the catheter;
- a sleeve defining a second lumen, wherein the sheath passes through the second lumen and wherein the sleeve has a comparatively high coefficient of friction against the external surface of the catheter;
- and
- a tissue ingrowth cuff affixed around the circumference of the sleeve, wherein the sleeve and sheath are movable over the external surface of the catheter, wherein the sheath is constructed and arranged to be selectively removable from between the sleeve and the catheter and wherein the sleeve is constructed and arranged to be substantially fixed in position on the external surface of the catheter after the sheath is removed from between the sleeve and the catheter.
A kit comprising:
- a catheter including an external surface and having an outer diameter;
- a sheath defining a first lumen larger than the outer diameter of the catheter, wherein the sheath has a comparatively low coefficient of friction against the external surface of the catheter;
- a sleeve defining a second lumen, wherein the sheath passes through the second lumen with the sleeve positioned around the sheath and wherein the sleeve has a comparatively high coefficient of friction against the external surface of the catheter;
- and
- a tissue ingrowth cuff affixed around the circumference of the sleeve, wherein the sheath is constructed and arranged to receive the catheter in a slidable relationship, wherein the sheath is constructed and arranged to be selectively removable from the sleeve and wherein the sleeve is constructed and arranged to be substantially fixed in longitudinal position on the external surface of the catheter after the sheath is removed from the sleeve.
A method of uniting an apparatus, the method comprising:
- for a particular clinical application for a particular patient, determining a longitudinal location on a catheter to position a tissue ingrowth cuff;
- moving a sheath longitudinally along the catheter, wherein the sheath is positioned around the catheter, wherein the sheath carries a sleeve positioned around the sheath and wherein the sleeve includes the tissue ingrowth cuff affixed around the circumference of the sleeve, wherein the sleeve has a comparatively high coefficient of friction against the catheter;
- removing the sheath from between the sleeve and the catheter thereby longitudinally positioning the sleeve and the tissue ingrowth cuff on the catheter.
Dependencies are inferred from the claim text.