US 12,285,173 B2Granted

Systems and methods for left atrial appendage closure

AssigneeAtriCure, Inc.

InventorsDwight P. Morejohn, Tamer Ibrahim, Michael J. Banchieri, Ara Stephanian, Brian Flores

Life of this patent

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Abstract

Embodiments of the present invention encompass systems and methods for delivering ligatures to anatomical features of a patient. Exemplary ligature delivery systems for use in delivering a ligature to a left atrial appendage ligature include an elongate support mechanism having a proximal portion and a distal portion, a flexible hoop assembly, and a cinchable constriction member. The flexible hoop assembly can be coupled with the distal portion of the elongate support mechanism, and can include a support body coupled with a support frame. The support frame can be biased to hold the support body in a trailing configuration, whereby a free portion of the support body is disposed proximal to the distal portion of the elongate support mechanism. The support frame of the flexible hoop assembly can be coupled with the distal portion of the elongate support mechanism. The support body can be configured to support the cinchable constriction member and a loop of the left atrial appendage ligature.

Claims14

Dependent claims

A ligature delivery system for applying a left atrial appendage ligature on a left atrial appendage, the ligature delivery system comprising:

an elongate support shaft having a proximal portion and a distal portion;
a handle portion located at the proximal portion of the elongate support shaft;
a flexible hoop assembly coupled with the distal portion of the elongate support shaft, the flexible hoop assembly defining a support body and a support frame, wherein the support body comprises a lumen configured to receive the support frame within;
and
one or more constriction members coupled to the flexible hoop assembly, wherein the support body is configured to support the one or more constriction members, wherein the one or more constriction members are guided via a plurality of flaps of the support body, wherein the plurality of flaps define a plurality of channels in which the one or more constriction members are received;
and
a deflector body configured to pivot in two axes relative to the elongate support shaft, wherein the support frame of the flexible hoop assembly is coupled with the distal portion of the elongate support shaft via the deflector body, wherein the deflector body comprises a plurality of pockets configured to hold the one or more constriction members guided from the plurality of flaps.

4 more elements

A method of delivering a ligature loop to a left atrial appendage of a patient, the method comprising:

advancing an elongate support shaft of a ligature delivery system toward the left atrial appendage of the patient, wherein the ligature delivery system includes a flexible hoop assembly coupled with a distal portion of the elongate support shaft, the flexible hoop assembly defining a support body, being disposed in a trailing configuration, and being adjustable about two axes via a deflector body such that the flexible hoop assembly can pivot independently of the elongate support shaft, wherein the support body comprises a plurality of flaps defining a plurality of channels having an inner surface exposed and extending along an outer surface, wherein one or more constriction members are guided via the plurality of flaps;
cinching one or more constriction members so as to constrict the left atrial appendage, wherein the deflector body comprises a plurality of pockets configured to hold the one or more constriction members guided from the plurality of flaps;
and
delivering the ligature loop from the flexible hoop assembly to the constricted left atrial appendage while the one or more constriction members constricts the left atrial appendage.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 17/658,640Filed 8 Apr 2022 · continuation
Priority: 30 Dec 2013
Published: US 2022/0346796 A13 Nov 2022
Granted: 29 Apr 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61B 17/12013
Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot: for use in minimally invasive surgery, e.g.…
A61B 1/04
Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g.…:…
A61B 17/0482
For suturing wounds; Holders or packages for needles or suture materials: needle or suture guides
A61B 90/37
Image-producing devices or illumination devices not otherwise provided for: surgical systems with images on a monitor during operation

Family

Application61/921,985Us provisional application · filed 30 Dec 2013
Application14/582,868Parent of this continuation · filed 24 Dec 2014
US 2022/0346796 A1Pre-grant publication · published 3 Nov 2022
US 11,324,510 B2Parent of this continuation
US 2015/0182225 A1Published application
US 12,285,173 B2This patent

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