Patent ID: 9655647
Date: 2017-05-23
CPC Classifications: A61B,A61F

Claim:
1. A retrieval apparatus for removing an intravascular filter from a body vessel of a patient, said retrieval apparatus comprising: an outer sheath having an annular wall defining an outer lumen; an inner sheath having an annular wall defining an inner lumen, said inner sheath being positioned in said outer lumen and being constructed and arranged for use in removing said intravascular filter from said body vessel; a retrieval member positioned in said inner lumen, said retrieval member including a snare with a plurality of loops; an ultrasound transducer positioned on an application side of said retrieval member, said inner sheath being adapted to move independently of said ultrasound transducer; a guide wire cannula extending between said outer sheath and said inner sheath; and a dilator located on the application side of said retrieval member, said dilator being coupled to said ultrasound transducer and receiving said guide wire cannula, wherein said plurality of loops are used for aligning with said intravascular filter such that extending said inner sheath toward said plurality of loops closes said snare toward a portion of said intravascular filter.