Occlusion method and apparatus

• US 6,994,717 B2
• Filed: 04/09/2002
• Issued: 02/07/2006
• Est. Priority Date: 03/05/1999
• Status: Expired due to Fees

• Current Assignee: Board of Regents of the University of Texas System (University of Texas System)
• Original Assignee: Board of Regents of the University of Texas System (University of Texas System)
• Inventors: Wallace, Sidney, Wright, Kenneth C., Kónya, András
• Primary Examiner(s): HO, UYEN T
• Application Number:
  US10/119,379
• Publication Number:
  US 20020156499A1
• Time in Patent Office: 1,400 Days
• Field of Search: 606/200, 606/194, 606/195, 606/157, 606/158, 623/1.13, 623 22- 237, 128/843
• US Class Current: 606/200
• 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 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12099 characterised by the location of the occluder
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/12177 comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated
• 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 2017/00601 Implements entirely comprised between the two sides of the opening
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61B 2017/1205 Introduction devices

Abstract

An occlusion method and apparatus. The occluder includes elastically deformable members and a jacket. The elastically deformable members are secured in spaced relation and extend in arcuate conformation therebetween. The jacket covers at least a portion of the elastically deformable members. The elastically deformable members are configured to become compressed upon application of a force and to recover the arcuate conformation upon removal of the fore to occlude a site.

Claims

1. A method for occluding an occlusion site, comprising:

providing an occluder including a pair of clips configured in spaced relation, a plurality of elastically deformable members secured by said clips and extending in arcuate conformation therebetween such that one or more of said members do not cross any other member, and a jacket covering the entire portion of said plurality of elastically deformable members extending in arcuate conformation;

providing a delivery system including a guiding catheter configured to receive said occluder and a pushing catheter configured to engage at least one of said pair of clips;

positioning said guiding catheter adjacent said occlusion site, wherein said occluder is positioned within said guiding catheter;

engaging at least one of said pair of clips with said pushing catheter; and

sliding said occluder relative to said guiding catheter with said pushing catheter so as to deploy said occluder from said guiding catheter so as to recover said arcuate conformation to occlude said occlusion site.

2. The method of claim 1, wherein said occluder further comprises one or more anchors defined by one or more ends of said plurality of elastically deformable members, and wherein said method further comprises anchoring said occluder at said occlusion site with said one or more anchors.

3. The method of claim 1, wherein at least one of said clips is an interdigitated clip, wherein an end of said pushing catheter is interdigitated, and wherein the method further comprises retrieving said occluder by interlocking said interdigitated clip with said interdigitated end of said pushing catheter by drawing at least a portion of said occluder within said guiding catheter.

4. The method of claim 3, further comprising repositioning said guiding occluder.

5. The method of claim 1, wherein said occluder and delivery system further comprise an eye in operable relation to at least one of said clips and a retrieval filament configured to engage said eye, and wherein said method further comprises retrieving said occluder by drawing at least a portion of said occluder within said guiding catheter with said retrieval filament.

6. The method of claim 5, further comprising repositioning said occluder.

7. The method of claim 1, wherein said occluder further comprises a lumen defined through said occluder and a guide wire configured to pass within said lumen, and wherein said method further comprises guiding said occluder toward said occlusion site with said guide wire.

8. The method of claim 1, wherein said delivery system further comprises a stiffening catheter configured to engage at least one of said clips, and wherein said method further comprises engaging said at least one of said clips with said stiffening catheter and compressing said occluder with said stiffening catheter by increasing the distance between said pair of clips.

9. The method of claim 1, wherein said occlusion site is a vascular occlusion site.

10. The method of claim 1, wherein said occlusion site is a ureter occlusion site.

11. The method of claim 1, wherein said occlusion site is a patent ductus arteriosus site.

12. A method for closure of patent ductus arteriosus having an aortic and pulmonary side, comprising:

providing an occluder including a pair of clips configured in spaced relation, a plurality of elastically deformable members secured by said clips and extending in arcuate conformation therebetween such that one or more of said members do not cross any other member, and a jacket covering the entire portion of said plurality of elastically deformable members extending in arcuate conformation;

providing a delivery system including a guiding catheter configured to receive said occluder and a pushing catheter configured to engage at least one of said pair of clips;

positioning said guiding catheter adjacent said patent ductus arteriosus, wherein said occluder is positioned within said guiding catheter; and

deploying said occluder from said guiding catheter so as to recover said arcuate conformation to close said patent ductus arteriosus.

13. The method of claim 12, wherein said occluder further comprises a guide wire in operable relation to said guiding catheter, and wherein said method further comprises guiding said occluder toward said patent ductus arteriosus with said guide wire.

14. The method of claim 12, wherein positioning comprises positioning said occluder on said pulmonary side.