Implantable occluder or filter

Patent metadata

Field	Value
Publication number	US-9427234-B2
Application number	US-201313802893-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Jun 13, 2012
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

An occlusion device ( 10 ) includes a cannula ( 24 ), a dilator tip ( 20 ) fixed to the cannula and a frame member formed of an occlusion member ( 28 ) and a sleeve ( 30 ). The occlusion member ( 28 ) is covered with occlusion material ( 26 ). The cannula ( 24 ) is in the form of a tube having a lumen ( 25 ) passing therethrough. The dilator tip ( 20 ) also has a lumen therethrough and a valve ( 32 ). The arrangement is such that the occluder ( 10 ) can be delivered by an over the wire method using a guide wire, whereupon the cannula and dilator tip remain in the patient as part of the occluder assembly ( 10 ).

First claim

The invention claimed is:

1. An implantable medical device for implanting into a vessel, the implantable medical device including:
an expandable frame member for at least partially obstructing a vessel, the expandable frame member including a central sleeve having a cylindrical section;
a cannula element including a first lumen, said cannula element being directly coupled to the cylindrical section, the cannula element having a proximal end and extending to the distal end such that the cannula element has a uniform inner diameter from the proximal end to the distal end;
a dilator tip including a second lumen, said dilator tip being located at one of the proximal end and distal end of the cannula element, the cannula element being disposed within the dilator tip;
wherein one of the cannula element and the dilator tip is provided with a seal for sealing one of the first lumen and the second lumen.

2. An implantable medical device according to claim 1 , wherein the frame member is collapsible to lie substantially parallel to the cannula element.

3. An implantable medical device according to claim 1 , wherein the frame member is expandable to a deployed configuration wherein at least a part of the frame member extends radially from the cannula element.

4. An implantable medical device according to claim 3 , wherein in the deployed configuration at least a part of the frame member extends radially from and longitudinally along the cannula element so as to form at least one substantially conical shape.

5. An implantable medical device according to claim 3 , wherein in the deployed configuration the frame member includes first and second portions which each extend radially from and longitudinally along the cannula element away from one another so as to form a substantially hourglass shape.

6. An implantable medical device according to claim 1 , wherein the implantable medical device is an occlusion device and wherein at least a part of the frame member is covered with occlusion material.

7. An implantable medical device according to claim 1 , wherein the seal includes a valve.

8. An implantable medical device according to claim 7 , wherein the valve is a cross-slit valve.

9. An implantable medical device according to claim 1 , wherein the cannula element is coupled concentrically within the central sleeve of the frame member.

10. An implantable medical device according to claim 1 , wherein the cannula is fixed within the central sleeve by friction.

11. An implantable medical device according to claim 1 , wherein the central sleeve is made from a shape memory material.

12. An implantable medical device according to claim 11 , wherein the central sleeve is made from Nitinol.

13. An implantable medical device according to claim 1 , wherein the cannula element is formed from a polymer, metal or metal alloy.

14. An implantable medical device according to claim 13 , wherein the cannula element is made from a shape memory material.

15. An implantable medical device according to claim 13 , wherein the cannula element is made from Nitinol.

16. An implantable medical device according to claim 1 , wherein the cannula element and the dilator tip member are fixed to one another.

17. An implantable medical device according to claim 1 , wherein the cannula element and the dilator tip member are formed of a single piece.

18. An implantable medical device according to claim 1 , comprising at least one of a radiopaque marker and a barb for fixing the occlusion device in position in the vessel.

19. An implantable medical device according to claim 1 , wherein the implantable medical device is a filter.

20. An implantable medical device for implanting into a vessel, the implantable medical device including:
an expandable frame member for at least partially obstructing a vessel, the frame member including a central sleeve;
a cannula element including a first lumen, said cannula element being coupled within the frame member, the cannula element being attached to the central sleeve of the frame member, wherein the cannula element has a tapered outer diameter, said outer diameter ranging from smaller than a diameter of the central sleeve to greater than a diameter of the central sleeve, such that the relative positions of the cannula and central sleeve can be fixed by forcing the cannula into the central sleeve;
a dilator tip including a second lumen, said dilator tip being located at an end of the cannula element;
wherein one of the cannula element and the dilator tip is provided with a seal for sealing one of the first lumen and the second lumen.

21. An implantable medical device for implanting into a vessel, the implantable medical device including:
an expandable frame member for at least partially obstructing a vessel, the frame member includes a central sleeve wherein the central sleeve is provided with at least one inwardly extending barb for fixing the location of the central sleeve relative to the cannula element;
a cannula element including a first lumen, said cannula element being coupled within the frame member;
a dilator tip including a second lumen, said dilator tip being located at an end of the cannula element;
wherein one of the cannula element and the dilator tip is provided with a seal for sealing one of the first lumen and the second lumen.

Assignees

• Cook Medical Technologies Llc

Inventors

• Lund-Clausen Jacob
• Hendriksen Per
• Lundsteen Nicholas Gulmann

Classifications

• A61B17/12177

  comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated · CPC title

• A61B17/12036

  partial occlusion · CPC title

• A61B17/12031

  complete occlusion · CPC title

• A61B2017/1205

  Introduction devices · CPC title

• A61B17/12109 Primary

  in a blood vessel · CPC title