 Anchor and pull mitral valve device and method |
| The present invention provides a device for effecting mitral valve annulus geometry of a heart. The ... |
|
| Minimally invasive annuloplasty procedure and apparatus |
| Methods and apparatus embodying this invention with which the above and other objects can be ... |
|
| Tissue engineered blood vessels and apparatus for their manufacture |
| The first step in the process of making the TEBV of this invention is to prepare a sheet of ... |
|
| Centrifugal blood pump with impeller blades forming a spin inducer |
| With the present invention, a reduction in hemolysis is achieved by positioning a plurality of ... |
|
| Magnetically levitated pump apparatus |
| Therefore a main object of the present invention is to provide a maglev pump capable of preventing ... |
|
| Dirk-based epicardial defibrillation electrode |
| The present invention provides an epicardial patch electrode which penetrates the epicardium. The ... |
|
| Compression sleeve |
| The present invention suggests a novel compression sleeve having overlapping inflatable pressure ... |
|
| Multiple mode photonic stimulation device |
| OF THE INVENTION Referring to FIG. 1, the schematic block diagram of the inventive stimulating ... |
|
| Magnetic mattress pad |
| A magnetic mattress pad providing magnetotherapy while a person rests or sleeps is disclosed herein.... |
|
| Methods of and apparatus for treating vascular defects |
| The present invention provides improved methods and related devices for treating vascular defects. A... |
|
|
Atrial septal defect closure catheter
| Details |
Inventors: Roue, Chad C.; Frazier, Andrew G. C.; Lesh, Michael D.; van der Burg, Erik J.;
Assignee: Appriva Medical, Inc. (Sunnyvale, CA)
Primary Examiner: Mendez; Manuel
Assistant Examiner:
Attorney, Agent or Firm: Knobbe, Martens, Olson & Bear, LLP
Disclosed is a closure catheter, for closing a tissue opening such as an atrial septal defect, patent foreman ovale, or the left atrial appendage of the heart. The closure catheter carries a plurality of tissue anchors, which may be deployed into tissue surrounding the opening, and used to draw the opening closed. Methods are also disclosed. |
|
DETAILED DESCRIPTION The present invention provides a closure catheter and methods for closing an opening in tissue, a body lumen, hollow organ or other body cavity.
The catheter and methods of its use are useful in a variety of procedures, such as treating (closing) wounds and naturally or surgically created apertures or passageways.
Applications include, but are not limited to, atrial septal defect closure, patent ductus arteriosis closure, aneurysm isolation and graft and/or bypass anostomosis procedures.
There is provided in accordance with one aspect of the present invention a method of closing an opening in a wall of the heart.
The method comprises the steps of advancing a catheter through the opening, and deploying at least two suture ends from the catheter and into tissue adjacent the opening.
The catheter is retracted from the opening, and the suture ends are drawn toward each other to reduce the size of the opening.
The opening is thereafter secured in the reduced size.
In one embodiment, the advancing step comprises advancing the catheter through an atrial septal defect.
The deploying step comprises deploying at least four suture ends.
Preferably, each suture end is provided with a tissue anchor, and the deploying step comprises advancing the tissue anchors into tissue adjacent the opening.
The securing step comprises knotting the sutures, clamping the sutures, adhesively bonding the sutures and/or the tissue to retain the opening in the reduced size.
In accordance with another aspect of the present invention, there is provided an atrial septal closure catheter.
The catheter comprises an elongate flexible body, having a proximal end and a distal end, and a longitudinal axis extending therebetween.
At least two supports are provided on the distal end, the supports moveable from a first position in which there are substantially parallel with the axis, and a second position in which they are inclined with respect to the axis.
A control is provided on the proximal end for moving the supports from the first position to the second position
|
|
Heart Surgery 
