Delivery device and method of delivery

Patent metadata

Field	Value
Publication number	US-9445929-B2
Application number	US-201514935154-A
Country	US
Kind code	B2
Filing date	Nov 6, 2015
Priority date	Jan 29, 2015
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

A delivery device can provide sequential delivery of a plurality of intraluminal devices or tacks held in a compressed state on the delivery device. Delivery platforms on the delivery device can hold a tack in a compressed position and have a unique shape, such as a non-constant outer diameter, an hourglass shape, a tapered proximal half, ridges, dimples, etc. This unique shape can be positioned between annular pusher bands that may also be radiopaque markers. In some embodiments, the unique shape is provided by a sleeve of flexible material with the unique shape surrounding a harder inner shaft. Further, the annular pusher bands can be made of wire or sections of material to increase flexibility while remaining radiopacity. A tack deployment method can include alignment of radiopaque markers on the outer sheath and the tack to be deployed prior to deployment.

First claim

What is claimed is:

1. An intraluminal device deployment method comprising:
advancing a delivery device with a plurality of intraluminal devices in a compressed state to a treatment area,
each of the plurality of intraluminal devices comprising a plurality of struts and a radiopaque marker positioned in a central region of the intraluminal device, each of the plurality of intraluminal devices being a same size with the radiopaque marker positioned in a same location,
the delivery device comprising an inner shaft having a plurality of delivery platforms, each intraluminal device of the plurality of intraluminal devices positioned at a respective delivery platform of the plurality of delivery platforms, and an outer sheath covering the inner shaft and the plurality of delivery platforms, the outer sheath having a radiopaque marker band positioned proximally from a distal end of the outer sheath;

withdrawing the outer sheath until the radiopaque marker band on the outer sheath and radiopaque marker on an intraluminal device to be delivered of the plurality of intraluminal devices are aligned such that a position of the radiopaque marker band on the outer sheath and a position of the radiopaque marker on the intraluminal device to be delivered of the plurality of intraluminal devices are longitudinally aligned along a longitudinal axis of the delivery device;
aligning the aligned radiopaque marker band and the radiopaque marker with the treatment area before release of the intraluminal device such that the aligned radiopaque marker band and the radiopaque marker are longitudinally positioned with respect to the treatment area;
withdrawing the outer sheath to release the intraluminal device; and
withdrawing the outer sheath until the radiopaque marker band on the outer sheath and radiopaque marker on another intraluminal device to be delivered of the plurality of intraluminal devices are aligned.

2. The method of claim 1 , wherein aligning the aligned radiopaque marker band and the radiopaque marker with the treatment area comprises centering the aligned radiopaque marker band and the radiopaque marker at a tissue dissection before release of the intraluminal device.

3. The method of claim 1 , wherein withdrawing the outer sheath until the radiopaque marker band on the outer sheath and radiopaque marker on the intraluminal device to be delivered of the plurality of intraluminal devices are aligned comprises withdrawing the outer sheath until a distal-most end of the outer sheath and a distal-most end of the intraluminal device are aligned.

4. The method of claim 1 , wherein withdrawing the outer sheath until the radiopaque marker band on the outer sheath and radiopaque marker on the intraluminal device to be delivered of the plurality of intraluminal devices are aligned comprises withdrawing the outer sheath until the radiopaque marker band is positioned at a middle of the intraluminal device.

5. The method of claim 1 , wherein the intraluminal device has a single column of radiopaque markers comprising the radiopaque marker and withdrawing the outer sheath until the radiopaque marker band on the outer sheath and radiopaque marker on the intraluminal device to be delivered of the plurality of intraluminal devices are aligned comprises withdrawing the outer sheath until the radiopaque marker band encircles the single column of radiopaque markers.

6. The method of claim 1 , further comprising advancing a guidewire to the treatment area, wherein the delivery device further comprises a guidewire lumen that extends through the inner shaft, the guidewire lumen being configured for receipt and advancement of a guidewire therein.

7. The method of claim 6 , wherein advancing the delivery device to the treatment area comprises advancing the delivery device over the guidewire.

8. The method of claim 1 , further comprising:
advancing an angioplasty balloon to the treatment area prior to advancing the delivery device to the treatment area; and
inflating the angioplasty balloon at the treatment area.

9. The method of claim 1 , further comprising:
advancing the delivery device to a second treatment area; and
further withdrawing the outer sheath to release another intraluminal device of the plurality of intraluminal devices.

10. The method of claim 1 , wherein each of the plurality of delivery platforms comprises a recess extending between a pair of annular pusher bands, the annular pusher bands being radiopaque, wherein the annular pusher bands appear different under visualization than both the radiopaque marker band on the outer sheath and radiopaque marker on each of the intraluminal devices of the plurality of intraluminal devices.

11. The method of claim 1 , further comprising unscrewing a tuohy borst adapter of the delivery device to release the inner shaft from a locking relationship with the outer sheath prior to withdrawing the outer sheath until the radiopaque marker band on the outer sheath and radiopaque marker on the intraluminal device to be delivered of the plurality of intraluminal devices are aligned.

12. An intraluminal device deployment method comprising:
advancing a delivery device to a treatment area, the delivery device comprising:
an inner shaft; and
a plurality of delivery platforms, a self-expanding medical device with a radiopaque marker, of a plurality of self-expanding medical devices, positioned around each of the delivery platforms, each delivery platform comprising:
a pair of fixed annular bands around the inner shaft; and
a sleeve secured to the inner shaft and positioned between the inner bands; and

an outer sheath configured to extend over the plurality of self-expanding medical devices to maintain each of the plurality of self-expanding medical device in a compressed state, the outer sheath having a radiopaque marker band positioned proximally from a distal end of the outer sheath;

aligning along a longitudinal axis of the delivery device the radiopaque marker band on the outer sheath with the radiopaque marker on a self-expanding medical device of the plurality of self-expanding medical devices;
positioning the aligned radiopaque marker band and the radiopaque marker longitudinally with respect to the treatment area; and
withdrawing the outer sheath to release the self-expanding medical device.

13. The method of claim 12 , wherein aligning the aligned radiopaque marker band and the radiopaque marker with the treatment area comprises centering the aligned radiopaque marker band and the radiopaque marker at a tissue dissection before release of the self-expanding medical device.

14. The method of claim 12 , wherein aligning the radiopaque marker band on the outer sheath and the radiopaque marker on the self-expanding medical device comprises withdrawing the outer sheath until a distal-most end of the outer sheath is aligned with a corresponding distal-most end of the self-expanding medical device.

15. The method of claim 12 , wherein aligning the radiopaque marker band on the outer sheath and the radiopaque marker on the self-expanding medical device comprises withdrawing the outer sheath until the radiopaque marker band is positioned at a middle of the self-expanding medical device.

16. The method of claim 12 , wherein the self-expanding medical device has a single column of radiopaque markers and aligning the radiopaque marker band on the outer sheath and the radiopaque marker on the self-expanding medical device comprises withdrawing the outer sheath until the radiopaque marker band encircles the single column of radiopaque markers.

17. The meth

Assignees

• Intact Vascular Inc

Inventors

• Longo Michael
• Evans Douglas
• Harrison William James

Classifications

• A61F2/9517

  handle assemblies therefor · CPC title

• A61F2250/0019

  differing in hardness, e.g. Vickers, Shore, Brinell · CPC title

• A61F2/86

  Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure · CPC title

• A61F2002/91583

  by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band · CPC title

• A61F2250/0098

  radio-opaque, e.g. radio-opaque markers · CPC title