Quick release knot attachment system

• US 20050085843A1
• Filed: 09/17/2004
• Published: 04/21/2005
• Est. Priority Date: 10/21/2003
• Status: Active Grant

• Current Assignee: WL Gore and Associates Incorporated (W.L. Gore and Associates)
• Original Assignee: NMT Medical Incorporated
• Inventors: Forde, Sean, Opolski, Steven
• Granted Patent: US 7,419,498 B2
• Time in Patent Office: Days
• US Class Current: 606/191
• 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 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/12131 characterised by the type of occluding device
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• 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 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61B 2017/0472 Multiple-needled, e.g. double-needled, instruments
• CPC Class Codes: A61B 2017/0475 using sutures having a slip knot

Abstract

A medical delivery system for delivering or retrieving a medical implant. In one embodiment, the medical delivery system includes a tube having a lumen; an implant; and a suture releasably joined to the implant, the suture comprising a first end, a second end, and a releasable knot, wherein tension applied to the first end of the suture collapses at least a portion of the implant for introduction into the tubular lumen and tension applied to the second end of the suture releases the implant.

Claims

1. A device for delivering a medical implant, comprising:

a tube comprising a lumen; and

a suture releasably joined to the implant, the suture comprising a first end, a second end, and a releasable knot, wherein applying tension to the first end of the suture collapses at least a portion of the implant for introduction into the tubular lumen and applying tension to the second end of the suture releases the suture from the implant.

2. The medical delivery device of claim 1, wherein the suture is attached to a proximal portion of the implant.

3. The medical delivery device of claim 2, wherein the suture is attached to a coil.

4. The medical delivery device of claim 1, wherein the implant comprises a septal occluder.

5. The medical delivery device of claim 1, wherein the releasable knot comprises a slip knot.

6. The medical delivery device of claim 1, wherein the releasable knot comprises a highwayman'"'"'s hitch knot.

7. The medical delivery device of claim 1, wherein the first end and the second end of the suture are operatively joined to an actuator.

8. The medical delivery device of claim 1, wherein the suture is joined to the implant at a plurality of attachment sites.

9. The medical delivery device of claim 1 further comprising a grasper.

10. The medical delivery device of claim 9, wherein the grasper comprises a fixed position jaw.

11. The medical delivery device of claim 9, wherein the grasper comprises a pivotal jaw.

12. The medical delivery device of claim 11 further comprising an elongated member wherein the grasper is joined to the elongated member.

13. The medical delivery device of claim 12, wherein said elongated member is operatively joined to an actuator.

14. A medical delivery system for delivering an implant comprising

a tube comprising a lumen for slideably receiving the implant;

and

a suture comprising a first end, a second end, and a knot, wherein the suture is releasably joined to the implant by the knot, the implant being released from the suture when tension is applied to an end of the suture.

15. The medical delivery system of claim 14, wherein said tube is operatively joined to an actuator.

16. The medical delivery system of claim 14, wherein the knot is a slip knot.

17. The medical delivery system of claim 16, wherein tension applied to the first end of the suture tightens the knot and tension applied to the second end of the suture releases the knot.

18. The medical delivery system of claim 17, wherein tension applied to the first end of the suture collapses at least a portion of the implant for introduction into the lumen of the tube.

19. The medical delivery system of claim 14, wherein the implant further comprises a suture attachment point to which the suture is attached.

20. The medical delivery system of claim 14, wherein the implant comprises a septal occluder.

21. The medical delivery system of claim 14, further comprising a plurality of sutures.

22. The medical delivery system of claim 21, wherein the tube further comprises at least one separate lumen for slideably receiving at least one of the plurality of sutures.

25. The method of claim 22, wherein the site is a vessel.

23. An attachment system for a medical implant, comprising:

a suture comprising a first end, a second end, and a knot, wherein the suture is releasably joined to the implant by the knot, the implant being secured to the suture when tension is applied to the first end of the suture and the implant being released from the suture when tension is applied to the second end of the suture.

26. The method claim of claim 23, wherein the site is a patent foramen ovale.

24. A method of occluding a site in a body of a patient, the method comprising:

providing a medical delivery system for a medical implant, comprising;

a tube comprising a lumen;

an implant; and

a suture releasably joined to the implant, the suture comprising a first end, a second end, and a releasable knot, wherein applying tension to the first end of the suture collapses at least a portion of the implant for introduction into the tube lumen and applying tension to the second end of the suture releases the knot; and

delivering the implant to an anatomical site in the body of the patient.