US 12,089,870 B2Granted

Devices and methods for accessing the left atrium for cardiac procedures

AssigneeMITRx, Inc.

InventorsMurali Dharan, Albert K. Chin, Jeffry J. Grainger

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Abstract

Systems, devices, and methods for providing access to the heart. The system includes an intracardiac access device comprising an elongate member having a channel extending between a distal end and a proximal end thereof. The intracardiac access device is configured to be advanced through an extrapericardial penetration in the left atrial wall without penetrating the pericardium of the heart. An optional procedural device is configured to be advanced through the channel of the intracardiac access device into an internal chamber of the heart and configured to perform a surgical procedure in the internal chamber of the heart. A working channel of an optional suprasternal access device is configured to facilitate access of the intracardiac access device into the body of the patient by providing a path from a suprasternal opening to a position adjacent the roof of the left atrium.

Claims20

Dependent claims

A method, comprising:

inserting a distal portion of a surgical instrument into a body of a patient through an opening in a suprasternal notch of the patient;
advancing the distal portion of the surgical instrument anteriorly along the trachea of the patient toward a left atrium of a heart of the patient;
making an extrapericardial penetration through a cardiac wall at a first location on a dome of the left atrium of the patient, wherein the first location is a devoid of pericardium of the heart;
advancing the distal portion of the surgical instrument through the extrapericardial penetration in the dome of the left atrium to access an internal chamber of the heart, while a proximal portion of the surgical instrument remains outside the body of the patient;
inserting a procedural instrument through a channel in the surgical instrument into the internal chamber of the heart;
and
performing a surgical procedure in the internal chamber of the heart with the procedural instrument.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/189,811Filed 24 Mar 2023 · continuation
Priority: 13 Jul 2017
Published: US 2023/0233228 A127 Jul 2023
Granted: 17 Sep 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification34 codes

A61B 17/0057
Surgical instruments, devices or methods: implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel…
A61B 17/3415
Trocars; Puncturing needles: for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
A61B 1/3137
For introducing through surgical openings, e.g. laparoscopes: for examination of the interior of blood vessels
A61B 17/0469
For suturing wounds; Holders or packages for needles or suture materials: suturing instruments for use in minimally invasive surgery, e.g.…

Family

Application62/532,082Us provisional application · filed 13 Jul 2017
PCT/US2018/042171Parent of this continuation · filed 13 Jul 2018
Application16/740,896Parent of this continuation · filed 13 Jan 2020
US 2023/0233228 A1Pre-grant publication · published 27 Jul 2023
US 2020/0222078 A1Published application
US 12,089,870 B2This patent

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

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