US 10,478,201 B2 · Insertable medical device system with plaque treatment portion and methods of using

Abstract

The disclosure provides plaque treatment catheter assemblies for the treatment of arterial plaques and removal of clots. One assembly includes a second catheter tube movable within a first catheter tube, and an expansion member movable within the second tube. The second catheter tube has one or more distally-disposed and outwardly-expandable plaque treatment portion(s). Another assembly includes a catheter tube and at least one channel(s) within the catheter. The channel includes an elongate member with a distally-disposed plaque scoring or clot retrieval member. Optionally, the assembly includes an expandable member that can cause movement of the scoring member.

Claims19

Dependent claims

A plaque treatment catheter assembly comprising:

a first catheter tube having inner and outer diameters and capable of being inserted within vasculature;
a second catheter tube having inner and outer diameters, the outer diameter of the second catheter tube being smaller than the inner diameter of the first catheter tube and capable of moving within and out of the first catheter tube, the second catheter tube having a distal portion comprising one or more plaque treatment portion(s) on an outer surface of the second catheter tube, wherein all or a portion of the second catheter tube including the one or more plaque treatment portion(s) is capable of outward expansion in response to force of an outer surface of an expansion member;
and
wherein the expansion member is movable within and out of the inner diameter of the second catheter tube when in a contracted state.

1 more element

A plaque treatment catheter assembly comprising:

a first catheter tube having inner and outer diameters and capable of being inserted within vasculature;
a second catheter tube having inner and outer diameters, the outer diameter of the second catheter tube being smaller than the inner diameter of the first catheter tube and capable of moving within and out of the first catheter tube, the second catheter tube having a distal portion comprising one or more plaque treatment portion(s) on an outer surface of the second catheter tube, wherein all or a portion of the plaque treatment portion is attached to the outer surface of the second catheter tube, and wherein all or a portion of the second catheter tube including the one or more plaque treatment portion(s) is capable of outward expansion in response to force of an outer surface of an expansion member so as to push the plaque treatment portion up against a plaque during use, and wherein the second catheter tube does not include a balloon;
and
wherein the expansion member is movable within and out of the inner diameter of the second catheter tube when in a contracted state.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/053,526Filed 25 Feb 2016 · us provisional application

Priority

26 Feb 2015

Published

US 2016/0249942 A11 Sep 2016

Granted

19 Nov 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

A61B 17/22
Surgical instruments, devices or methods: implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out…
A61B 17/320725
Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions: with radially expandable…
A61M 25/104
Balloon catheters: used for angioplasty
A61B 2017/00685
Aspects not otherwise provided for: archimedes screw

Insertable medical device system with plaque treatment portion and methods of using

Life of this patent

Insertable medical device system with plaque treatment portion and methods of using

Life of this patent

Abstract

Claims19