US 11,759,221 B2Granted

Integrated thrombectomy and filter device and methods of use

AssigneeeLum Technologies, Inc.

InventorsQuang Tran, Noelle Bagnall, Victor Barajas

Life of this patent

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Abstract

The invention relates generally to methods and systems for capturing, filtering, or retrieving obstructions or other particulates from a patient's vasculature. In one aspect, device for retrieving an obstruction from a patient is provided that includes an outer delivery shaft and an expandable basket movable between a collapsed configuration and an expanded configuration. The basket is configured to be in the collapsed configuration during delivery and in the expanded configuration during engagement and retrieval of the obstruction. A proximal end of the basket is configured to be centrally and pivotally coupled to the outer delivery shaft. The proximal end and/or a distal end of the basket is movable relative to each other such that a proximal portion of the expandable basket is invertible toward a distal portion of the basket to form a proximally oriented cavity in the expanded configuration to engage and retrieve the obstruction.

Claims27

Dependent claims

A method for filtering particulates released during a neurovascular procedure performed upon a patient to prevent distal migration of the released particulates, the method comprising:

advancing a neurovascular device into a neurovasculature of the patient, the neurovascular device comprising an expandable basket movable between a collapsed configuration and an expanded configuration and having a proximal end and a distal end, the proximal end configured to be centrally and pivotally coupled to an outer delivery shaft,
wherein the expandable basket comprises an inner layer and an outer layer, wherein the inner layer is configured to expand to a larger diameter relative to the outer layer when the expandable basket is moved to a partially expanded configuration between the collapsed configuration and expanded configuration;
deploying the expandable basket from the collapsed configuration to the expanded configuration by moving at least one of the proximal end or distal end relative to each other to invert a proximal portion of the expandable basket towards a distal portion of the expandable basket to form a proximally oriented cavity in the expanded configuration;
anchoring the neurovascular device distal of a thrombus;
and
capturing the released particulates of the thrombus within the proximally oriented cavity of the expandable basket.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/751,481Filed 23 May 2022 · continuation
Priority: 30 May 2018
Published: US 2022/0280175 A18 Sep 2022
Granted: 19 Sep 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

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;…
A61L 29/02
Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters: inorganic materials
A61B 2017/22094
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 2090/08021
Prevention of accidental cutting or pricking: of the patient or his organs

Family

Application62/677,870Us provisional application · filed 30 May 2018
Application62/697,644Us provisional application · filed 13 Jul 2018
Application62/701,254Us provisional application · filed 20 Jul 2018
Application62/836,255Us provisional application · filed 19 Apr 2019
Application16/425,650Parent of this continuation · filed 29 May 2019
US 2022/0280175 A1Pre-grant publication · published 8 Sep 2022
US 11,399,853 B2Parent of this continuation
US 2019/0365395 A1Published application
US 11,759,221 B2This patent

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