Apparatus for delivering an implant without bias to a left atrial appendage
View Patent ↗An implant delivery system, comprising: an implantable device comprising a plurality of supports extending between a proximal end and a distal end, the supports being moveable between a collapsed configuration and an expanded configuration, a proximal guide tube at the proximal end of the supports extending toward the distal end, and a distal guide tube at the distal end of the supports extending toward the proximal end, wherein the proximal and distal guide tubes are telescoping and become further engaged as the supports move from the collapsed to the expanded configuration.
1. An implant delivery system, comprising:
an implantable device comprising a plurality of supports extending between a proximal end and a distal end, the supports each having a proximal end, a distal end, an intermediate portion between the proximal end and the distal end, and being configured and adapted to move between a collapsed configuration and an expanded configuration,
wherein the proximal ends of the plurality of supports are joined at a proximal hub having a diameter smaller than a diameter of the plurality supports in the expanded configuration, and
a catheter system including a catheter having a lumen within a distal end region thereof, wherein the catheter system is sized and adapted to contain at least a portion of the implantable device when the implantable device is in the collapsed configuration;
an activation element slidable within the lumen of the catheter; and
a disconnect mount releasably joining the implantable device and the catheter when the implantable device is in the collapsed configuration,
wherein the disconnect mount comprises two or more flexible fingers extending distally with respect to the catheter,
wherein the two or more flexible fingers are sized and adapted to engage the proximal hub of the implantable device in an outwardly flexed position,
wherein the activation element when activated allows the two or more flexible fingers to return to a biased position and moves the implantable device between the collapsed configuration and the expanded configuration, and
wherein the disconnect mount is adapted to release the implantable device thereby allowing the catheter and the activation element to be removed from a patient while the implantable device remains implanted within the patient.
2. The implant delivery system of claim 1 , wherein the implantable device is an occluder or a filter sized and adapted to be deployed within a left atrial appendage.
3. The implant delivery system of claim 2 , wherein the implantable device further comprises a membrane or mesh covering the proximal end and at least a portion of the intermediate portion of the supports.
4. The implant delivery system of claim 3 , wherein the membrane or mesh is occlusive.
5. The implant delivery system of claim 3 , wherein the membrane or mesh includes openings sized to allow blood cells to pass therethrough while preventing passage of emboli.
6. The implant delivery system of claim 1 , wherein the disconnect mount when activated causes the catheter to disengage the implantable device without affecting a longitudinal position of the implantable device.
7. The implant delivery system of claim 1 , wherein the two or more flexible fingers assume the outwardly flexed position when the activation element is extended distally between the two or more flexible fingers.
8. The implant delivery system of claim 1 , wherein disconnect mount further includes at least one recess within the proximal hub which is sized and adapted to receive the two or more flexible fingers of the disconnect mount.
9. The implant delivery system of claim 1 , wherein the activation element is moveable between a first state in which it is extended distally beyond the catheter and a second state in which it is retracted within the catheter.
10. The implant delivery system of claim 1 , wherein when the activation element is extended distally beyond the catheter, the implantable device assumes a collapsed configuration.
11. The implant delivery system of claim 1 , wherein when the activation element is retracted within the catheter, the implantable device assumes an expanded configuration.
12. The implant delivery system of claim 1 , wherein the activation element engages a distal tube affixed to each distal end of the plurality of supports in the collapsed configuration and is withdrawn from the distal tube in the expanded configuration.
13. The implant delivery system of claim 1 , wherein the disconnect mount prevents rotation of the implantable device relative to the catheter when the activation element is activated while the implantable device is in the collapsed configuration or the expanded configuration.
14. The implant delivery system of claim 1 , wherein the catheter system includes a transseptal sheath.