Stent system

• US 6,858,038 B2
• Filed: 06/21/2002
• Issued: 02/22/2005
• Est. Priority Date: 06/21/2002
• Status: Expired due to Term

• Current Assignee: PQ Bypass, Inc.
• Original Assignee: Richard R. Heuser
• Inventors: Heuser, Richard R.
• Primary Examiner(s): McDermott, Corrine
• Assistant Examiner(s): Phan, Hieu
• Application Number:
  US10/177,816
• Publication Number:
  US 20030236566A1
• Time in Patent Office: 977 Days
• Field of Search: 623/1.1, 623/1.11, 623/1.12, 623/1.15, 623/1.16, 623/1.18, 623/1.19, 623/1.2, 623/1.35
• US Class Current: 623/1.35
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/061 provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2002/072 Encapsulated stents, e.g. wire or whole stent embedded in lining
• CPC Class Codes: A61F 2230/0054 V-shaped

Abstract

A stent system is provided for percutaneous insertion in an artery of a main stent which includes at least one peripheral aperture defined through the stent wall. The stent system also includes a peripheral stent configured to be inserted into the peripheral aperture of the main stent. The peripheral stent extends, when inserted in the peripheral aperture, generally perpendicular to the longitudinal axis of the main stent. The stent system may further include a guidewire, insertable through the peripheral aperture, for maneuvering the main stent into place in the artery. The guidewire may be tapered toward its distal end. The stent system may also include a dilation device for dilating the peripheral stent within the peripheral aperture. The stent system may further include a tube inserted through the peripheral aperture of the main stent.

Claims

1. A stent system for installation in a human bodily fluid vessel, the stent system comprising:

a main stent including a generally cylindrical wall defining a central longitudinal axis, and having a first main opening and an opposite second main opening, the stent including at least one peripheral aperture defined through the wall;

a tube removably installed in, and extending through the peripheral aperture, the tube preventing closure of the peripheral aperture, the tube including a channel extending therethrough, the channel configured to receive a guidewire, the tube fixed in place for movement of the main stent relative to the guidewire and configured to be removed from the main stent as part of the installation of the stent system in the human bodily vessel; and

a peripheral stent configured to be inserted into the peripheral aperture of the main stent after removal of the tube, the peripheral stent extending, when inserted in the peripheral aperture, generally perpendicular to the longitudinal axis of the main stent.

2. The stent system of claim 1 wherein the main stent includes a second peripheral aperture defined through the wall, and further comprising a second peripheral stent configured to be inserted in the second peripheral aperture.

3. The stent system of claim 2 wherein the second peripheral stent, when inserted in the second peripheral aperture, extends generally perpendicular to the longitudinal axis of the main stent.

4. The stent system of claim 1 wherein the tube is formed substantially of a slick material selected to allow the main stent to slide along the guidewire.

5. The stent system of claim 1 wherein the main stent includes a second peripheral aperture defined through the wall, and further comprising a second peripheral stent configured to be inserted in the second peripheral aperture, and also comprising a second tube inserted through the second peripheral aperture, the second tube including a channel extending therethrough, the channel configured to receive a second guidewire, the second tube configured to be removed from the main stent as part of the installation in the human bodily vessel.

6. The stent system of claim 1 wherein the main stent includes a removable restraint disposed around the wall of the main stent.

7. The stent system of claim 6 wherein the removable restraint includes a space adjacent the peripheral aperture and the tube extends through the space.

8. The stent system of claim 7 wherein the removable restraint is configured to breakaway adjacent the tube as the restraint is removed from the main stent.