Implant delivery systems and methods

Abstract

The present teachings provide a medical system for delivering and deploying a medical implant, and the method of using thereof. Specifically, one aspect of the present teachings provides a medical system having an implant with an engagement loop, and a delivery system having an engagement wire and an interface. During implant delivery, the engagement wire engages the engagement loop of the implant. The engagement wire further interacts with the interface in order to prevent unintended disengagement of the engagement loop from the engagement wire. Certain embodiment of the present teaching also includes an implant release control mechanism fixedly attaching to a proximal end of the engagement wire. During implant delivery, the implant release control mechanism attaches the proximal end of the delivery system. During implant deployment, the implant release control mechanism detaches the proximal end of the delivery system.

1 - 20 . (canceled) 
     
     
         21 . A medical system for delivery and deploying an implant into a patient, the medical system compromising:
 a medical implant having a proximal engagement loop;   an implant delivery system having an implant pusher shaft, an engagement wire, and a wire engagement interface;   wherein the implant pusher shaft has an elongated lumen with a distal end and a proximal end;   wherein the engagement wire comprises a proximal end and a distal end, and slidably disposed within the elongated lumen of the implant pusher shaft;   wherein the wire engagement interface joins to a distal portion of the implant pusher shaft, and is configured to engage the distal end of the engagement wire;   wherein the medical system has a first medical implant delivery configuration where the proximal engagement loop of the medical implant extends proximally from the distal ends of the implant pusher shaft into the elongated lumen, loops over the wire engagement interface; and the engagement wire extends distally with the distal end of the engagement wire engages the wire engagement interface securing the engagement loop to the implant delivery system.   
     
     
         22 . The medical system of  claim 21 , wherein the medical system has a second medical implant deployment configuration where the engagement wire retracts proximally away from the wire engagement interface, thereby releasing the engagement loop of the medical implant from the implant pusher shaft. 
     
     
         23 . The medical system of  claim 21 , wherein the wire engagement interface joins a distal portion of the implant pusher shaft inside its elongated lumen, partially blocks the elongated lumen of the implant pusher shaft. 
     
     
         24 . The medical system of  claim 23 , wherein the wire engagement interface has a generally tubular profile with a first end, a second end, and an axial lumen extending from the first end to the second end, and wherein in the first medical implant delivery configuration, the distal end of the engagement wire extends distally into the axial lumen of the wire engagement interface from its proximal end. 
     
     
         25 . The medical system of  claim 24 , wherein the distal end of the wire engagement interface aligns with the distal end of the implant pusher shaft. 
     
     
         26 . The medical system of  claim 21 , wherein the wire engagement interface joins the implant pusher shaft with the proximal end of the wire engagement interface joining the distal end of the implant pusher shaft. 
     
     
         27 . The medical system of  claim 26 , wherein the wire engagement interface has a generally tubular profile with a first end, a second end, and an axial lumen extending from the first end to the second end, and wherein in the first medical implant delivery configuration, the distal end of the engagement wire extends distally into the axial lumen of the wire engagement interface from its proximal end. 
     
     
         28 . The medical system of  claim 22 , wherein in both the first medical implant delivery configuration and the second medical implant deployment configuration, the distal end of the engagement wire remains inside the elongated lumen of the implant pusher shaft.