Patent ID: 9198690
Filing Date: 2015-12-01
Classification: A61B,A61F

Abstract:
1. A method for retrieving an at least partially uncollapsed filter disposed on a catheter body when the venous filter and a portion of the catheter body are within a blood vessel, comprising: threading an introducer sheath over a proximal end of the catheter body external the patient's body; inserting a first end of the introducer sheath into a vascular access site and into the patient's vasculature; severing a portion of the proximal end of the catheter body while maintaining hemostasis; threading a non-split rapid exchange retrieval sheath over the proximal end of the catheter body, wherein the non-split rapid exchange retrieval sheath further comprises a side lumen through which the proximal end of the catheter body passes and exits the non-split rapid exchange retrieval sheath proximal to a distal end of the retrieval sheath; advancing the non-split rapid exchange retrieval sheath through the introducer sheath and toward a distal end of the catheter body proximate the venous filter and within a blood vessel, the non-split rapid exchange retrieval sheath having a diametrically expansible section at the distal end being radially expandable from a smaller diameter to a larger diameter; enveloping the at least partially uncollapsed filter within the larger diameter of the diametrically expansible section at the distal end of the retrieval sheath thereby capturing the uncollapsed venous filter within the retrieval sheath; and concurrently withdrawing the non-split rapid exchange retrieval sheath, the venous filter and the catheter body from the patient.