Sealing device and delivery system
The invention relates to a sealing device for repair of cardiac and vascular defects or tissue opening such as a patent foramen ovale (PFO) or shunt in the heart, the vascular system, etc. and particularly provides an occluder device and trans-catheter occluder delivery system. The sealing device would have improved conformity to heart anatomy and be easily deployed, repositioned, and retrieved at the opening site.
1. A deployment handle system comprising:
a medical device configured to releasably couple to a deployment handle for delivery thereof, the deployment handle including:
a housing,
a first slot having a length and arranged along at least a partial length of the housing, and
at least one linear actuator configured to move within the first slot along the length thereof to transition the medical device between stages of deployment based on a position of the at least one linear actuator within the first slot,
a second linear actuator configured to move within a second slot in a longitudinal surface of the housing, and
a retrieval cord lock removably coupled to the at least one linear actuator configured to fully retrieve the medical device using a retrieval cord coupled to the medical device.
2. The system of claim 1 , wherein the medical device comprises an expandable frame having a plurality of struts extending from a proximal end to a distal end of the frame.
3. The system of claim 2 , wherein the proximal end of the expandable frame is configured to couple the medical device to the deployment handle.
4. The system of claim 2 , wherein the expandable frame comprises a shape memory alloy configured to self-expand upon release from the deployment handle.
5. The system of claim 1 , wherein the deployment handle further includes a release actuator configured to release the medical device from the deployment handle.
6. The system of claim 1 , wherein the stages of deployment include: an elongated configuration of the medical device and a deployed configuration of the medical device.
7. The system of claim 6 , wherein the at least one linear actuator is configured to elongate the medical device to the elongated configuration in response to withdrawing the at least one linear actuator proximally within the first slot.
8. The system of claim 7 , wherein the at least one linear actuator is arranged at a first position, the first slot includes a distal notch, and the at least one linear actuator is configured to move from the distal notch prior to withdrawing the at least one linear actuator proximally within the first slot to arrange the medical device in the elongated configuration.
9. The system of claim 8 , wherein the at least one linear actuator is configured to move proximally within the first slot to a proximal stopping position, and the proximal stopping position is indicative of the medical device being arranged in the elongated configuration.
10. The system of claim 9 , wherein the at least one linear actuator is configured move laterally within the first slot at the proximal stopping position into a proximal notch of the first slot.
11. The system of claim 10 , the at least one linear actuator is configured to move distally within the first slot, subsequent to being moved to the proximal stopping position, to a distal stopping position, and the distal stopping position is indicative of the medical device being arranged in the deployed configuration.
12. A deployment handle system comprising:
a housing;
a first tube;
a second tube;
a third tube extending from an end of the housing, wherein the first tube is configured to retract within the third tube and the second tube is configured to retract within the first tube;
a channel having a length portion arranged along at least a partial length of the housing;
at least one linear actuator configured to move within the channel along the length thereof to transition the second tube within the first tube and the first tube within the third tube based on a position of the at least one linear actuator within the channel;
a lock release actuator arranged on a lateral side of the housing with the at least one linear actuator and having protrusions arranged along lateral sides of the lock release actuator.
13. The system of claim 12 , further comprising a medical device configured to releasably couple to a deployment handle for delivery thereof.
14. The system of claim 13 , wherein the medical device comprises an elongated configuration and a deployed configuration.
15. The system of claim 14 , wherein the at least one linear actuator is configured to elongate the medical device to the elongated configuration in response to withdrawing the at least one linear actuator proximally within the channel.
16. The system of claim 15 , wherein the channel comprises a distal notch and a proximal notch, the distal notch and the proximal notch being substantially perpendicular to the length portion of the channel.
17. The system of claim 16 , wherein the at least one linear actuator is configured to move from the distal notch prior to withdrawing the at least one linear actuator proximally within the channel to arrange the medical device in the elongated configuration.