US 10,517,622 B2Granted

Clot removal device

AssigneeNeuravi Limited

InventorsDavid Vale, Eamon Brady, Michael Gilvarry, Brendan Casey

Life of this patent

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Abstract

A system may comprise a clot engagement element having a collapsed delivery configuration and an expanded configuration for engaging with a clot and for dislodging the clot from a first vessel segment. An elongate member may be configured to apply a pull force to the clot engaging element to dislodge the clot from the first vessel segment. A clot removal catheter may include a lumen at its distal end sized to receive the clot and configured to maintain a stable position in a second blood vessel segment proximal of and larger in diameter than the first blood vessel segment. A distal end of the elongate member may be configured to protect a third blood vessel segment between the first and second blood vessel segments from tractive forces transmitted by the elongate member during clot dislodgement from the first vessel segment.

Claims20

Dependent claims

A clot removal device comprising:

a clot engaging body extending distally of a shaft, and a tractive tubular member, the clot engaging body having a collapsed delivery configuration and an expanded configuration;
the shaft comprising a proximal section and a distal section, a distalmost end of the distal section of the shaft being permanently connected to a proximal end of the clot engaging body and including a stop for the tractive tubular member;
the tractive tubular member positioned distally of the stop and encircling the shaft over at least a portion of the shaft distal section, the tractive tubular member being slidable and rotatable relative to the distal section of the shaft and the clot engaging body;
wherein a proximal end of the clot engaging body is positioned distally of the distal end of the tractive tubular member during both the collapsed delivery configuration and the expanded configuration;
and
wherein an interface between the shaft and the tractive tubular member comprises an outer surface of the shaft and an inner surface of the tractive tubular member, and wherein a coefficient of friction of the inner surface of the tractive tubular member is less than a coefficient of friction of an outer surface of the tractive tubular member.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/484,815Filed 11 Apr 2017 · continuation
Priority: 13 Mar 2013
Published: US 2017/0215903 A13 Aug 2017
Granted: 31 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

A61B 17/22031
Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones;…
A61B 17/221
Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones;…
A61B 2017/00309
Constructional details of the flexible means: cut-outs or slits
A61B 2017/00336
Mounted on or guided by flexible, e.g. catheter-like, means: with a protective sleeve, e.g. retractable or slidable

Family

Application61/780,422Us provisional application · filed 13 Mar 2013
Application14/205,041Parent of this continuation · filed 11 Mar 2014
US 2017/0215903 A1Pre-grant publication · published 3 Aug 2017
US 9,642,635 B2Parent of this continuation
US 2014/0371769 A1Published application
US 10,517,622 B2This patent

From the US filing history. Foreign family members aren’t listed.