INTRAVENOUS FILTER WITH GUIDEWIRE AND CATHETER ACCESS GUIDE

摘要

A vascular filter system and method are disclosed. In one embodiment, the filter system comprises a dispensing needle, a guidewire and a catheter releasably attached to a filter dispenser which stores a length of filter wire. The filter wire dispenser has a guide tube which guides the filter wire into the catheter and then into a vein during surgical implantation. The filter wire is configured to form into a predetermined shape as it is deployed from the needle. The shape of the filter wire captures blood clots in the blood stream. The filter wire may be configured with a perforated section and a non-perforated section. Perforations are in fluid communication with an inner hollow lumen in the filter wire.

主权项

1. A vascular filter system comprising:
a catheter having a proximal end and a distal end, the distal end configured to be inserted into a blood vessel of a patient, and the proximal end configured as a filter wire dispenser connection end to connect to a filter wire dispenser; a filter wire; and a filter wire dispenser for storing the filter wire, the filter wire dispenser including a guide tube configured to connect to the filter wire dispenser connection end of the catheter; the filter wire having a filter portion configured to (i) coil within or around the filter wire dispenser (ii) deploy from the filter wire dispenser to the blood vessel of the patient, to form a vascular filter within the blood vessel, and (iii) completely retract percutaneously from the blood vessel after filtering within the blood vessel.