Prosthetic implant delivery device with introducer catheter

Abstract

A delivery system and a method for deploying a cardiovascular prosthetic implant using a minimally invasive procedure are disclosed. The delivery system comprises an introducer catheter, a delivery catheter having a proximal end and a distal end, and a seal assembly, wherein an outer diameter of the distal end of the delivery catheter is greater than an inner diameter of the distal end of the introducer catheter.

1 . A delivery system for delivering a cardiovascular prosthetic implant using a minimally invasive procedure, wherein the deployment system comprises:
 an introducer catheter having a proximal end and a distal end;   a delivery catheter extending through the introducer catheter, the delivery catheter having a proximal end and a distal end extending beyond the distal end of the introducer catheter; and   a hemostasis seal assembly at a proximal end of the introducer catheter;   wherein an outer diameter of the distal end of the delivery catheter is greater than an inner diameter of the distal end of the introducer catheter.   
     
     
         2 . The delivery system of  claim 1  further comprising a cardiovascular prosthetic implant at the distal end of the delivery catheter. 
     
     
         3 . The delivery system of  claim 2 , wherein the cardiovascular prosthetic implant comprises an inflatable cuff and a tissue valve. 
     
     
         4 . The delivery system of  claim 1 , further comprising at least one link between the catheter body and the cardiovascular prosthetic implant. 
     
     
         5 . The delivery system of  claim 1 , wherein the inner diameter of the distal end of the introducer is 16 F or less. 
     
     
         6 . The delivery system of  claim 1 , wherein the introducer catheter includes an elongated tapered tip. 
     
     
         7 . The delivery system of  claim 1 , wherein the introducer catheter includes a tapered tip configured to transition between a first enlarged length configuration and a second shorter configuration. 
     
     
         8 . The delivery system of  claim 1 , wherein the system further comprises a long tip in a first configuration and a short tip in a second configuration. 
     
     
         9 . The delivery system of  claim 1 , wherein the system further comprises a tip that has a straight configuration and a bent configuration. 
     
     
         10 . A delivery system for delivering a cardiovascular prosthetic implant using a minimally invasive procedure, wherein the deployment system comprises:
 a introducer catheter having a proximal end and a distal end and a lumen extending from the proximal end to the distal end of the introducer catheter, the introducer catheter having an outer diameter defined by an outer surface of the introducer catheter and an inner diameter defining the through lumen;   a delivery catheter extending through the introducer catheter, the delivery catheter comprising a tubular body having a proximal end and a distal end, the distal end including a sheath jacket and stem portion extending proximally from the sheath jacket, the sheath jacket having an outer surface that defines an outer diameter of the sheath jacket, the outer diameter of the sheath jacket being greater than the inner diameter of the introduced catheter at the distal end of the introducer catheter, the stem portion having an outer surface that defines an outer diameter of the stem portion, the outer diameter of the stem portion being smaller than the inner diameter of the introducer catheter; and   a cardiovascular prosthetic implant positioned at least partially within the sheath jacket.   
     
     
         11 . The delivery system of  claim 10 , comprising a seal assembly at a proximal end of the introducer catheter. 
     
     
         12 . The delivery system of  claim 10 , wherein the cardiovascular prosthetic implant comprises an inflatable cuff and a tissue valve. 
     
     
         13 . The delivery system of  claim 10 , including at least one inflation lumen extending between the inflatable cuff and the proximal end of the introducer catheter, the inflation lumen extending through the delivery catheter. 
     
     
         14 . The delivery system of  claim 10 , further comprising at least one link between the catheter body and the cardiovascular prosthetic implant. 
     
     
         15 . The delivery system of  claim 10 , wherein the inner diameter of the distal end of the introducer catheter is about 16 F. 
     
     
         16 . The delivery system of  claim 10 , comprising a tubing extending through the delivery catheter and the cardiovascular prosthetic implant. 
     
     
         17 . The delivery system of  claim 10 , comprising a distal tip coupled to a distal end of the tubing, the distal tip having a maximum outside diameter that is approximately the same as the outside diameter of the jacket sheath. 
     
     
         18 . The delivery system of  claim 10 , wherein the sheath jacket is coupled to a distal end of the stem portion. 
     
     
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