Systems and methods for treating a carotid artery

Patent metadata

Field	Value
Publication number	US-10952882-B2
Application number	US-201816148849-A
Country	US
Kind code	B2
Filing date	Oct 1, 2018
Priority date	Jul 18, 2007
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.

First claim

The invention claimed is:

1. A method for treating an artery, comprising:
transcervically inserting a sheath into an artery through a penetration in a wall of the artery;
inserting an interventional catheter into the artery via the sheath, wherein the interventional catheter is adapted to deploy a stent and wherein the interventional catheter includes a first hemostasis valve, and wherein the interventional catheter includes:
(a) an elongated inner member having a distal region on which the stent may be mounted, the elongated inner member further having a protrusion on a proximal portion of the elongated inner member;
(b) an elongated stent containment sheath coaxially positioned over the inner member, the stent containment sheath formed by an annular side wall, wherein an opening is formed through a proximal portion of the annular side wall of the stent containment sheath, and wherein the protrusion of the inner member extends outward through the opening such that the protrusion of the inner member may be accessed by a user at a location outside the stent containment sheath;

treating an artery using the interventional catheter.

2. A method as in claim 1 , wherein the sheath is adapted to receive blood flow from the caroid artery, and wherein the sheath is coupled to a flow control assembly coupled to a shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state, wherein the flow control assembly includes one or more components that interact with the blood flow through the shunt.

3. A method as in claim 1 , wherein the catheter has a working length suitable for deployment through a transcervical access sheath into the artery.

4. A method as in claim 3 , wherein the working length is within the range of 40 cm to 60 cm.

5. A method as in claim 3 , wherein the working length is within the range of 40 cm to 75 cm.

6. A method as in claim 1 , wherein the opening in the annular side wall of the stent containment sheath is an elongated slot along which the protrusion of the inner member can be slid to achieve relative movement between the stent containment sheath and the inner member.

7. A method as in claim 1 , wherein the opening in the annular side wall of the stent containment sheath is located distal of a proximal end of the stent containment sheath.

8. A method as in claim 1 , wherein the protrusion of the inner member includes a tubular member that encircles a proximal region of the stent containment sheath.

Assignees

• Silk Road Medical Inc

Inventors

• Chou Tony M
• Garrison Michi E
• Hyde Gregory M
• Renati Richard
• Schaer Alan

Classifications

• A61F2/966

  with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod · CPC title

• A61F2/014

  Retrograde blood flow filters, i.e. device inserted against the blood flow direction · CPC title

• A61F2/013

  Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting · CPC title

• A61F2/856

  Single tubular stent with a side portal passage · CPC title

• A61B17/3207

  Atherectomy devices {working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions (A61B17/32037 takes precedence; endoscopic cutting instruments A61B17/320016)} · CPC title