US 11,596,436 B2Granted

Excisional devices and methods

AssigneeTransMed7, LLC

InventorsJames W Vetter, Paul A Vetter, Eugene H Vetter

Life of this patent

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Abstract

A platform device for material excision or removal from vascular structures for either handheld or stereotactic table or robotics platform use may comprise a work element or elements configured to selectively open and close at least one articulable beak or scoopula configured to penetrate and remove intra-vascular materials or obstructions, or follow a central lumen of another device or over a wire in a longitudinal direction. Flush and vacuum tissue transport mechanisms may be incorporated as well as single or multiple arrays of image guidance elements, directional elements, ablation elements and other interventional assistance elements. A single tube or an inner sheath and an outer sheath which may be co-axially disposed relative to a work element may be configured to actuate a beak or beaks or scoopulas and provisions for simultaneous or differential beak or scoopula closing under their differential rotation may be incorporated.

Claims16

Dependent claims

A device, comprising:

an outer flexible tube defining a longitudinal axis;
a rotatable scoopula disposed within the outer flexible tube and defining an open side portion;
at least one inflatable support element attached near a distal end of the rotatable scoopula;
an inner sheath disposed within the rotatable scoopula and configured to move parallel to the longitudinal axis;
a first pair of first and second rotatable and articulable beaks disposed within the inner sheath and partially extending into the open side portion of the scoopula, the first pair of first and second rotatable and articulable beaks being configured to cut tissue present within and beyond the open side portion of the scoopula by selectively assuming an open and a at least partially closed configuration while rotating;
an expandable and collapsible cutting and imaging chamber disposed at a distal end of a central tube that is disposed coaxially between the first pair of first and second articulable beaks, the chamber being configured to enclose a removable imaging device within a volume of fluid and to move parallel to the longitudinal axis away from and back against the first pair of first and second articulable beaks.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/840,715Filed 6 Apr 2020 · us provisional application
Priority: 4 Apr 2019
Published: US 2020/0315652 A18 Oct 2020
Granted: 7 Mar 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification39 codes

A61B 17/32075
Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions: pullback cutting; combined…
A61B 5/0036
Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of…:…
A61B 5/0066
Arrangements for scanning: optical coherence imaging
A61B 5/0084
Adapted for particular medical purposes: for introduction into the body, e.g. by catheters