Controlled deployable medical device and method of making the same

Abstract

Controlled deployable medical devices that are retained inside a body passage and in one particular application to vascular devices used in repairing arterial dilations, e.g., aneurysms. Such devices can be adjusted during deployment, thereby allowing at least one of a longitudinal or radial re-positioning, resulting in precise alignment of the device to an implant target site.

1 . An apparatus, comprising:
 a catheter having a proximal end portion and distal end portion;   a stent member arranged on the proximal end portion of the catheter, the stent member has an inner surface and an outer surface;   a tube extending from the catheter proximal end portion to the distal end portion; and   at least one movable element having a first end and second end in communication with the stent member, wherein the first and second end of the movable element are capable of extending out a distal end portion of the tube and is capable of radially compressing at least a portion of the stent member.   
     
     
         2 . The apparatus of  claim 1 , further comprising:
 a second movable element in communication with the movable element, wherein the second movable element surrounds the stent member and the movable element is looped over the second movable element.   
     
     
         3 . The apparatus of  claim 1 , wherein distal end portion of the tube comprises a twisted configuration. 
     
     
         4 . The apparatus of  claim 1 , wherein the tube comprises two lumens. 
     
     
         5 . The apparatus of  claim 1 , wherein the first movable element comprises a filament. 
     
     
         6 . The apparatus of  claim 5 , wherein the filament comprises a polymer. 
     
     
         7 . The apparatus of  claim 1 , wherein a graft member is arranged about the stent member. 
     
     
         8 . An apparatus, comprising:
 a catheter having a proximal end portion and distal end portion;   a stent member arranged on the proximal end portion of the catheter, wherein the stent member has an inner surface and an outer surface;   a tube having a continuous lumen, the tube extending from the catheter proximal end portion to the distal end portion; and   a release pin contained within the tube lumen and extending from the catheter proximal end portion to the distal end portion.   
     
     
         9 . The apparatus of  claim 8 , further comprising:
 a first movable element at least a portion of which is contained within the tube lumen.   
     
     
         10 . The apparatus of  claim 9 , further comprising:
 a second movable element releasably attached to the first movable element.   
     
     
         11 . The apparatus of  claim 10 , wherein at least a portion of the second movable element is contained within the tube lumen. 
     
     
         12 . The apparatus of  claim 10 , wherein the second movable element is released from the first movable element by translating the release pin in a distal direction. 
     
     
         13 . The apparatus of  claim 10 , wherein the second movable element is capable of radially compressing the stent member. 
     
     
         14 . The apparatus of  claim 8 , wherein a graft member is arranged about the stent member. 
     
     
         15 . An apparatus, comprising:
 a catheter having a proximal end portion and distal end portion;   a stent member arranged on the proximal end portion of the catheter, wherein the stent member has an inner surface and an outer surface;   a first sheath material covering at least a portion of the stent member, wherein the first sheath material is capable of holding the stent member at a first diameter; and   a second sheath material covering at least a portion of the stent member, wherein the second sheath material is capable of holding the stent member at a second diameter, wherein the second diameter is greater than the first diameter.   
     
     
         16 . The apparatus of  claim 15 , further comprising a tube extending from the catheter proximal end portion to the distal end portion. 
     
     
         17 . The apparatus of  claim 16 , wherein the distal end portion of the tube comprises a twisted configuration. 
     
     
         18 . The apparatus of  claim 16 , wherein the tube comprises two lumens.