Occlusion systems
An occlusion device with particular utility in occlusion of left atrial appendages is described. The occlusion device embodiments utilize an inflatable balloon or expandable element used to occlude the treatment site.
1. An occlusion device to occlude a treatment site comprising:
a balloon;
an inflation fluid delivery member that delivers inflation fluid to inflate the balloon;
an adhesive delivery member that delivers adhesive to bind the balloon to the treatment site, wherein the adhesive delivery member is disposed radially within the inflation fluid delivery member; and,
a porous membrane distal to the balloon, wherein the porous membrane is permeable or semi-permeable to the adhesive.
2. The occlusion device of claim 1 , wherein the porous membrane is connected to a distal end of the balloon and defines a volume.
3. The occlusion device of claim 2 , wherein a distal end of the adhesive delivery member is positioned within or open to the volume defined by the porous membrane.
4. The occlusion device of claim 1 , wherein a proximal portion of the porous membrane is bonded to the balloon and forms a gap between the balloon and the porous membrane.
5. The occlusion device of claim 1 , wherein the adhesive delivery member is removable from the balloon.
6. The occlusion device of claim 1 , wherein the porous membrane is a PET spun microfiber.
7. The occlusion device of claim 1 , further comprising a detachment junction between the balloon and the inflation fluid delivery member to detach the balloon from the inflation fluid delivery member.
8. The occlusion device of claim 1 , further comprising a valve within the inflation fluid delivery member and through which the adhesive delivery member may be positioned through and removed from.
9. The occlusion device of claim 1 , further comprising a mesh barrier disposed proximal to the balloon.
10. The occlusion device of claim 9 , wherein the inflation fluid delivery member is detachable from the mesh barrier and the balloon.
11. The occlusion device of claim 1 , further comprising an outer balloon in communication with the adhesive delivery member.
12. The occlusion device of claim 11 , wherein the outer balloon is porous, wherein the outer balloon is configured such that the adhesive is permeable through the porous outer balloon.
13. An occlusion device to occlude a treatment site comprising:
a balloon;
an inflation fluid channel that delivers inflation fluid to the balloon;
a porous membrane connected to the balloon and defining an interior volume; and,
an adhesive delivery channel having a distal end opening within the interior volume and that delivers adhesive to bind the balloon to the treatment site, wherein the adhesive delivery channel is concentric within the inflation fluid channel.
14. The occlusion device of claim 13 , wherein the interior volume defined by the porous membrane is located only at a distal portion of the balloon.
15. The occlusion device of claim 13 , wherin porous membrane is disposed around the balloon to form a second outer balloon.
16. The occlusion device of claim 13 , further comprising a detachment junction between the ballon and the inflation fluid channel to detach the balloon from the inflation fluid channel.
17. An occlusive device to occlude a treatment site comprising:
a balloon;
an inflation fluid channel that delivers inflation fluid to the balloon;
a detachment junction between the balloon and the inflation fluid channel to detach the balloon from the inflation fluid channel; and,
an adhesive delivery channel having an opening distal to the entire balloon and that delivers adhesive to bind the balloon to the treatment site.
18. The occlusive device of claim 17 , wherein the adhesive delivery channel is removable from the balloon.
19. The occlusive device of claim 18 , further comprising a porous membrane connected to the balloon and defining a distal volume; and wherein the adhesive delivery channel has the opening within the distal volume.