# US 12,178,428 B2 · Surgical suturing device for repair of tricuspid regurgitation and methods thereof

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- Number: US 12,178,428 B2
- Document ID: US12178428B2
- Status: Granted
- Kind: B2
- Application number: 17/739,770
- Filed: 2022-05-09
- Published: 2022-08-18
- Granted: 2024-12-31
- Earliest claimed: 2018-09-12
- Assignees: LSI Solutions, Inc.
- Applicants: LSI Solutions, Inc.
- Inventors: Jude S. Sauer
- Web page: https://patentgrep.com/patent/US12178428B2

## CPC

- A61B 17/0469: {Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery}
- A61B 17/06: Needles {; Sutures; Needle-suture combinations}; Holders or packages for needles or suture materials
- A61B 17/0482: {Needle or suture guides (guides for drills, pins or wire A61B17/17; guides for puncturing needles A61B17/3403)}
- A61B 17/0483: {Hand-held instruments for holding sutures (A61B17/0469 takes precedence; other holders for needles or sutures A61B17/06061; surgical forceps A61B17/28; surgical pincettes A61B17/30)}
- A61B 17/062: Needle manipulators
- A61B 2017/00243: {cardiac}
- A61B 2017/00314: {Separate linked members}
- A61B 2017/00323: {Cables or rods}
- A61B 2017/00783: {Valvuloplasty}
- A61B 2017/0406: {Pledgets}
- A61B 2017/0472: {Multiple-needled, e.g. double-needled, instruments}
- A61B 2017/048: {for reducing heart wall tension, e.g. sutures with a pad on each extremity}
- A61B 2017/0496: {for tensioning sutures}
- A61B 2017/06009: {having additional means for releasably clamping the suture to the needle, e.g. actuating rod slideable within the needle}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A surgical suturing device is disclosed. The surgical suturing device may include a first or a second tissue gap, a first pair of needles configured to be movable across the first tissue gap, a second pair of needles configured to be movable across the second tissue gap, and a first suture having first and second ends. The surgical suturing device also includes a second suture having first and second ends and a needle actuator which selectively engages either: the first pair of needles to drive them through the first tissue gap and into communication with the first end of the first suture and the first end of the second suture, respectively; or the second pair of needles to drive them through the second tissue gap and into communication with the second end of the first suture and the second end of the second suture.

## Claims

### Claim 1

A surgical suturing device, comprising:
a first tissue gap;
a second tissue gap;
a first pair of needles configured to be movable across the first tissue gap, each of the first pair of needles having a tip portion;
a second pair of needles configured to be movable across the second tissue gap, each of the second pair of needles having a tip portion;
a flexible shaft, wherein the flexible shaft is at least partially steerable and comprises one or more articulating links;
a guidewire tip, wherein the one or more articulating links are positioned within the guidewire tip in a retracted position, and the one or more articulating links are articulated outside of the guidewire tip in an advanced position;
a distal tip having a first portion defining the first tissue gap and a second portion defining the second tissue gap, the distal tip further defining:
a first ferrule holder configured to releasably retain a first ferrule coupled to a first portion of a first suture;
a second ferrule holder configured to releasably retain a second ferrule coupled to a second portion of the first suture;
a third ferrule holder configured to releasably retain a third ferrule coupled to a third portion of a second suture;
a fourth ferrule holder configured to releasably retain a fourth ferrule coupled to a fourth portion of the second suture; and
a needle actuator operable between a first configuration and a second configuration, wherein in the first configuration, the tip portion of each of the first pair of needles is configured to displace across the first tissue gap and into communication with the first ferrule and the third ferrule, respectively; and
wherein in the second configuration, the tip portion of each of the second pair of needles is configured to displace across the second tissue gap and into communication with the second ferrule and the fourth ferrule, respectively.

### Claim 2 (depends on 1)

The surgical suturing device of claim 1, wherein the needle actuator comprises:
a lever; and
a selection switch configured to selectively couple the lever to either the first pair of needles or the second pair of needles.

### Claim 3 (depends on 1)

The surgical suturing device of claim 1, wherein the flexible shaft comprises one or more vertebrae.