Apparatus and method for closing a septal defect

• US 6,117,159 A
• Filed: 12/22/1998
• Issued: 09/12/2000
• Est. Priority Date: 03/22/1996
• Status: Expired due to Term

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Holman, Thomas J., Buscemi, Paul J., Huebsch, Joseph, Langanki, Danney
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): Woo, Julian W.
• Application Number:
  US09/218,381
• Time in Patent Office: 630 Days
• Field of Search: 606/213, 606/151, 606/215, 606/232, 606/157
• US Class Current: 606/213
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00579 Barbed implements
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61B 2017/00619 Locking means for locking the implement in expanded state
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor

Abstract

A catheter delivered device to close a septal defect, the device comprising a cylindrical shaft of metal or polymeric material with concentric parallel cuts through the wall of the device which create flattened support struts. The center of the support struts move radially away from the axis in a hinge like fashion in response to the movement of the device'"'"'s proximal and distal ends toward the center of the device. This movement is reversibly effected through mechanical means. The device can be coated with growth factors, mitogenic factors or other determinants which can improve tissue growth such that tissue ingrowth can occur over a period of time. The catheter itself may be an ultrasonic imaging catheter.

Claims

1. Apparatus for closing an intravascular defect within the body, including septal defects, comprising:

a closure device constructed and arranged to have a percutaneous delivery configuration and an aperture closing configuration, the device being further constructed and arranged to be reversibly operable between the two configurations such that the device may be changed from an aperture closing configuration back to a delivery configuration for removal or repositioning said closure device further being constructed and arranged to be deployed through a delivery catheter;

a delivery catheter for delivering the closure device, when in the delivery configuration, percutaneously to the body site of an intravascular defect to be closed, and intralumen mechanical mechanism means associated with the catheter and closure device for remotely operating the device in situ between the two configurations.

2. The apparatus of claim 1 wherein the closure device is deformable between the two configurations.

3. The apparatus of claim 1 wherein the closure device is comprised of polymeric material.

4. The apparatus of claim 1 wherein the device is comprised of metallic material.

5. The apparatus of claim 1 wherein the device includes a polymeric coating.

6. Apparatus for closing an intravascular defect within the body, including septal defects, comprising:

a closure device constructed and arranged to have a percutaneous delivery configuration and an aperture closing configuration, the device being further constructed and arranged to be reversibly operable between the two configurations, said closure device being generally cylindrical when in said percutaneous delivery configuration, said closure device is of a unitary construction and having a central portion separating a proximal and a distal portion, said distal and proximal portions being deformable to expand in radial diameter while decreasing in length to achieve an aperture closing configuration, said closure device further being constructed and arranged to be deployed through a delivery catheter;

a delivery catheter for delivering the closure device, when in the delivery configuration, percutaneously to the body site of an intravascular defect to be closed, and intralumen mechanical mechanism means associated with the catheter and closure device for remotely operating the device in situ between the two configurations.

7. Apparatus for closing an intravascular defect within the body, including septal defects, comprising:

a closure device constructed and arranged to have a percutaneous delivery configuration and an aperture closing configuration, the device being further constructed and arranged to be reversibly operable between the two configurations in order to allow repositioning of said closure device after a first trial placement, said closure device further being constructed and arranged to be deployed through a delivery catheter;

a delivery catheter for delivering the closure device, when in the delivery configuration, percutaneously to the body site of an intravascular defect to be closed, and intralumen mechanical mechanism means associated with the catheter and closure device for remotely operating the device in situ between the two configurations.