Vascular treatment devices and methods

• US 8,696,645 B2
• Filed: 11/14/2011
• Issued: 04/15/2014
• Est. Priority Date: 11/15/2010
• Status: Active Grant

• Current Assignee: Merit Medical Systems, Inc.
• Original Assignee: Vascular Insights LLC (Merit Medical Systems, Inc.)
• Inventors: Tal, Michael G., Marano, John P.
• Primary Examiner(s): BERDICHEVSKY, AARTI
• Application Number:
  US13/295,518
• Publication Number:
  US 20120130411A1
• Time in Patent Office: 883 Days
• Field of Search: 604/507, 604/508, 604/509, 606/159
• US Class Current: 604/509
• CPC Class Codes: A61B 17/12013 for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/12186 liquid materials adapted to be injected
• CPC Class Codes: A61B 17/3207 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 Class Codes: A61B 17/320758 with a rotating cutting instrument, e.g. motor driven A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002
• CPC Class Codes: A61B 2017/00778 Operations on blood vessels A61B2017/22097, A61B2017/320741 take precedence
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/320733 with a flexible cutting or scraping element, e.g. with a whip-like distal filament member
• CPC Class Codes: A61B 2017/320766 eccentric

Abstract

An apparatus for performing a vascular treatment includes an intraluminal member that is controllingly moved during the vascular treatment. The intraluminal member of the vascular treatment device can be connected to a motor. The intraluminal member may be configured to retain endothelium during the vascular treatment procedure.

Claims

1. A vascular treatment method comprising the following steps:

advancing an elongated intraluminal member from an access site and into a vein having an inner vessel wall comprising endothelium tissue, wherein the intraluminal member comprises a single wire having a distal portion configured to produce damage to the inner vessel wall and retain endothelium tissue within cavities disposed on the distal portion of the wire;

damaging the inner vessel wall by performing a defined movement of the portion of the intraluminal member against the endothelium tissue, wherein the damaging comprises removing endothelium tissue from the inner vessel wall and retaining the endothelium tissue within the cavities on the distal portion of the wire while performing the defined movement.

2. The method of claim 1, further comprising injecting sclerosant into the vein and onto the damaged inner vessel wall.

3. The method of claim 1, wherein the defined movement is rotation of the intraluminal member.

4. The method of claim 1, wherein the distal portion of the wire further includes sharp edged protrusions.

5. The method of claim 1, wherein the distal portion of the wire further includes a roughened surface.

6. The method of claim 1, wherein the wire includes a roughened and hemispherical distal tip.