Detachment mechanism for a central venous access filter and method of use
AssigneeBiO2 Medical, Inc.
InventorRogelio Ivan Guerra
Life of this patent
Estimating the term…
Abstract
A detachment and retrieval mechanism for a central venous access filter includes a catheter body, and an outer sheath concentrically disposed about the catheter body. The outer sheath and the catheter body are moveable relative to one another. A filter member includes a first end coupled to the catheter body and a second end movable relative to the catheter body. The first end comprises a collar that is immovably coupled to the catheter body in a first state and movably coupled to the catheter body upon transition to a second state.
Claims7
A method of use for a detachment mechanism for a central venous access filter system having a catheter body, an outer sheath concentrically disposed about the catheter body wherein the catheter body and the outer sheath are moveable relative to one another, and a filter member having a first end coupled to the catheter body via a shape memory detachment mechanism and a second end movable relative to the catheter body, the method comprising the steps of:
- a. deploying the catheter filter within a blood vessel such that the filter member remains attached to the catheter body and has an enlarged diametric opening which opens facing a patient's blood flow;
- and
- b. triggering a change of state of the shape memory detachment mechanism to release the filter member into the blood vessel.
Dependencies are inferred from the claim text.