Atrial septal defect closure catheter

• US 20010041915A1
• Filed: 07/13/2001
• Published: 11/15/2001
• Est. Priority Date: 09/20/1999
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: EV3 Sunnyvale Incorporated
• Inventors: Lesh, Michael D., Roue, Chad C., van der Burg, Erik J., Frazier, Andrew G.C.
• Granted Patent: US 6,458,100 B2
• Time in Patent Office: Days
• US Class Current: 606/225
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• 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 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00292 mounted on or guided by flexible, e.g. catheter-like, means
• 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 2017/00632 Occluding a cavity, i.e. closing a blind opening
• CPC Class Codes: A61B 2017/00668 the implement being a tack or a staple
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening lateral eyelet for attaching suture to needle A61B2017/06019
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/042 plastically deformed during insertion
• CPC Class Codes: A61B 2017/0437 the barbs being resilient or spring-like
• CPC Class Codes: A61B 2017/0445 cannulated, e.g. with a longitudinal through-hole for passage of an instrument
• CPC Class Codes: A61B 2017/0454 the anchor being crimped or clamped on the suture
• CPC Class Codes: A61B 2017/0458 : Longitudinal through hole, e.g. suture blocked by a distal suture knot
• CPC Class Codes: A61B 2017/0464 : for soft tissue
• CPC Class Codes: A61B 2017/0472 : Multiple-needled, e.g. double-needled, instruments
• CPC Class Codes: A61B 2017/0477 : with pre-tied sutures
• CPC Class Codes: A61B 2017/048 : for reducing heart wall tension, e.g. sutures with a pad on each extremity
• CPC Class Codes: A61B 2017/0488 : Instruments for applying suture clamps, clips or locks for applying suture anchors A61B2017/0409; for applying wound clamps A61B17/10; for applying ligaturing clamps or clips A61B17/128
• CPC Class Codes: A61B 2017/0645 : being elastically deformed for insertion
• CPC Class Codes: A61B 2017/0647 : having one single leg, e.g. tacks
• CPC Class Codes: A61F 2/24 : Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
• CPC Class Codes: A61F 2/2427 : Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2487 : Devices within the heart chamber, e.g. splints
• CPC Class Codes: Y10S 606/907 : Composed of particular material or coated

Abstract

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.

Claims

1. An atrial septal closure catheter, comprising:

an elongate, flexible body, having a proximal end and a distal end and a longitudinal axis extending therebetween;

at least two supports on the distal end, the supports movable from a first position in which they are substantially parallel with the axis, and a second position in which they are inclined with respect to the axis; and

a control on the proximal end for moving the supports from the first position to the second position;

wherein the supports incline radially outwardly in the proximal direction when the supports are in the second position.

2. An atrial septal closure catheter as in

claim 1

, further comprising at least three supports.

3. An atrial septal closure catheter as in

claim 1

, further comprising at least one anchor carried by each support, each anchor secured to an anchor suture.

4. An atrial septal closure catheter as in

claim 3

, further comprising an anchor deployment actuator for deploying the anchors from the supports in a proximal direction.

5. A closure catheter for closing an atrial septal defect, comprising:

an elongate, flexible tubular body, having a proximal end and a distal end and a longitudinal axis extending therebetween;

at least two anchor supports on the distal end, the anchor supports movable between an axial position in which they are substantially parallel with the longitudinal axis, and an inclined position in which they are inclined laterally away from the axis; and

a control on the proximal end, for moving the anchor supports between the axial and the inclined positions;

wherein each anchor support has a proximal end and a distal end, and the distal end is pivotably secured to the catheter so that the proximal end moves away from the axis when the anchor support is moved into the inclined position.

6. A closure catheter for closing an atrial septal defect as in

claim 5

, further comprising an anchor in each of the anchor supports.

7. A closure catheter for closing an atrial septal defect as in

claim 5

, comprising from about four to about ten anchor supports.

8. A closure catheter for closing an atrial septal defect as in

claim 5

, further comprising a suture connected to each anchor.

9. A closure catheter for closing an atrial septal defect as in

claim 5

, further comprising a clamp removably carried by the distal end of the catheter.