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Dual lumen catheter with controlled antegrade and retrograde fluid flow
| Details |
Inventors: Macoviak, John A.; Ross, Michael;
Assignee: Cardeon Corporation (Saratoga, CA)
Primary Examiner: McDermott; Corrine M.
Assistant Examiner: Rodriguez; Cris L.
Attorney, Agent or Firm: Fulwider Patton Lee & Utecht, LLP
A catheter device regulates fluid flow within a circulatory vessel. Included is an elongated catheter body configured to access one of a circulatory vessel or a heart chamber. The catheter body includes a proximal end, a distal end, and a first lumen including an open proximal end and a distal end with a port formed at a distal portion of the distal end. A second lumen is also included in the catheter body with an open proximal end. An antegrade valve is coupled to an exterior of the catheter body and configured to provide a controllable antegrade flow and a controllable retrograde flow along the exterior of the catheter body. The antegrade flow is greater than the retrograde flow. A retrograde valve may be included which provides a controllable retrograde and antegrade flow along the exterior of the catheter body. When a retrograde valve is used, the retrograde flow is greater than the antegrade flow. |
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DETAILED DESCRIPTION The present invention is a catheter device that regulates fluid flow within a circulatory vessel by controlling flows through and around a catheter.
Included is an elongated catheter body configured to access one of a circulatory vessel or a heart chamber.
The catheter body includes a proximal end, a distal end, and a first lumen including an open proximal end and a distal end with a port formed at a distal portion of the distal end.
An antegrade valve is coupled to an exterior of the catheter body and configured to provide a controllable antegrade flow and a controllable retrograde flow along the exterior of the catheter body.
The antegrade flow is greater than the retrograde flow.
In other embodiments, second and third lumens are included.
The proximal ends of the second and third lumens are open.
The distal ends of the second and third lumens can be open or closed with or without side ports.
Distal portions of the second and third lumens can include side ports, which may provide directional fluid flow.
One or more antegrade and retrograde valves can be included with a catheter body.
Further, one or more balloons may also be included, along with their associated elongated catheter inflation lumens.
The elongated catheter body or cannula of the catheter device is indicated generally throughout the patent specification and drawings by the reference number 14.
The terms "catheter" and "cannula" are generally synonymous in the art and will be used interchangeably within the specification to refer to the elongated catheter body 14.
The various illustrative embodiments of the catheter device will be referred to by their respective figure numbers and will be differentiated from one another by the number, size and function of the lumens within the elongated catheter body 14 and the number, type and location of the valves and/or balloons along the elongated catheter body 14.
Each antegrade or retrograde valve can be a central blood flow valve or a peripheral flow valve and made of one, two, three or more leaflets
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Heart Surgery 
