Method and apparatus for fine adjustment of a percutaneous valve structure
The invention provides a device for fine adjustment of a prosthetic valve device and a method of adjusting the position of a prosthetic valve after implantation. The adjustment mechanism includes complementary structures on a valve member and device frame that cooperate to provide relative axial and/or angular motion between the valve member and device frame (and thus the native vessel). The adjustment mechanism of the invention may also include a means for selectively maintaining the relative position of the valve member and device frame. The device and method are particularly applicable for use with a modular prosthetic valve device that is assembled in the body lumen.
1. An apparatus for adjusting the position of a valve member of a percutaneous valve device, comprising:
a first adjustment structure located on said valve member; and
a second adjustment structure located on a device frame;
wherein said valve member and said device frame together make up said valve device, said percutaneous valve device having a first configuration for percutaneous delivery and a second configuration as a working configuration; and wherein said first adjustment structure has a configuration that fits together in a complementary manner with a configuration on said second adjustment structure to control the relative movement between the valve member and device frame and select one position from a plurality of positions along a longitudinal axis of said valve device between said valve member and said device frame in said second configuration after delivery and deployment from a percutaneous delivery device.
2. The apparatus of claim 1 , wherein said first and second adjustment structures are selected from the group consisting of: buttons and harbors; snap-fit pads and openings; ring and ratchet post; angular ribs and angular grooves; helix rail and rollers; and helix groove and protrusions.
3. The apparatus of claim 1 , further comprising a position-maintaining means.
4. The apparatus of claim 1 , wherein said valve device is a modular valve device, said valve member is a valve module, and said device frame is a stent; and wherein said valve module and said stent are configured for assembly into said valve device after deployment from a delivery device.
5. A method of adjusting the position of a valve member of a percutaneous valve device comprising:
providing a delivery device containing a percutaneous valve device, said valve device comprising a first adjustment structure on said valve member and a second adjustment structure on a device frame, wherein said valve member and said device frame together make up said valve device, said percutaneous valve device having a first configuration for percutaneous delivery and a second configuration as a working configuration, and wherein said first adjustment structure has a configuration that fits with a configuration on said second adjustment structure in a complementary manner to permit controlled relative movement between the valve member and device frame;
deploying said valve device from said delivery device and expanding said valve device to form said second configuration;
adjusting a position of said valve member relative to a position of said device frame via said first and second adjustment structures, wherein said configurations of said first and second adjustment structures cooperate in a complementary manner; and
selecting one position from a plurality of positions between said valve member and said device frame along a longitudinal axis of said valve device.
6. The method of claim 5 , wherein said valve device is a modular valve device, said valve member is a valve module, and said device frame is a support structure; wherein said deploying step includes deploying said valve module and deploying said support structure;
said method further comprising assembling said valve module and said support structure into said valve device.
7. The method of claim 5 , wherein said valve device further comprises a position-maintaining means, said method further comprising:
locking said first and second adjustment structures together via said position-maintaining means.
8. The method of claim 5 , wherein said device further comprises a pull wire; said method comprising using said pull wire to adjust said position of said valve member relative to said device frame.
9. The method of claim 6 , wherein said method further comprises locking said valve module and said stent together using a locking mechanism.
10. An apparatus for adjusting the position of a valve member of a percutaneous valve device, comprising:
a first adjustment structure located on said valve member; and
a second adjustment structure located on a device frame;
wherein said valve member and said device frame together make up said valve device, said percutaneous valve device having a first configuration for percutaneous delivery and a second configuration as a working configuration; and wherein said first adjustment structure has a configuration that fits together in a complementary manner with a configuration on said second adjustment structure to control the relative movement between the valve member and device frame and select one position from a plurality of positions between said valve member and said device frame; said apparatus being configured to allow adjustment of an angular position of said valve member relative to said device frame.
11. A system comprising:
a percutaneous valve device, said valve device comprising a first adjustment structure on a valve member, and a second adjustment structure on a device frame; wherein said valve member and said device frame together make up said percutaneous valve device, said percutaneous valve device having a first configuration for percutaneous delivery and a second configuration as a working configuration; and wherein said first adjustment structure has a configuration that fits with a configuration on a second adjustment structure in a complementary manner to control the relative movement between the valve member and device frame and select one position from a plurality of positions along a longitudinal axis of said valve device between said valve member and said device frame in said second configuration; and
a delivery device for percutaneously delivering and deploying said valve device.
12. The system of claim 11 , wherein said first and second adjustment structures are selected from the group consisting of: buttons and harbors; snap-fit pads and openings; ring and ratchet post; angular ribs and angular grooves; helix rail and rollers; and helix groove and protrusions.
13. The system of claim 11 , further comprising a position-maintaining means.
14. The system of claim 11 , wherein said valve device is a modular valve device, said valve member is a valve module and said device frame is a support structure; and wherein said valve module and said support structure are configured for assembly to form said valve device after deployment from said delivery device.
15. The system of claim 11 , wherein said delivery device is a catheter.