WATCHMAN FLX™ Pro and VersaCross Connect™ In-Service Rubric Vocabulary

Vocabulary flashcards generated from the WATCHMAN FLX™ Pro with VersaCross Connect™ LAAC Access Solution In-Service Rubric, covering key specifications, technical terminology, procedural steps, and evaluation criteria.

WATCHMAN FLX™ Pro Design Goals

The three core design goals of the device: 1) Reduce likelihood of DRT, 2) Treat larger anatomies, and 3) Enhance imaging capabilities.

Hemocoat Technology

A non-eluting fluoropolymer coating on the WATCHMAN FLX™ Pro that promotes healing and promotes endothelialization.

WATCHMAN FLX™ Pro Sizing Specifications

Sizing features including 6 device sizes, accommodating an LAA ostium of $14-36\,\text{mm}$, and a compression range of $10-30\%$.

Sparkle Artifact

An incidental ultrasound imaging finding caused by ultrasound waves interacting with the hemocoat polymer, which causes no harm to the patient.

Radiopaque Markers (WATCHMAN FLX™ Pro)

Markers on the device utilized as deployment aids, during the Tug Test, and for visualizing the device on profile.

WATCHMAN FLX™ Pro Deployment Knob

A deployment knob that is larger in size to enhance control and orange in color to distinguish the WATCHMAN FLX™ Pro device.

3 in 1 VersaCross™ RF Wire

A wire used as a starter wire or standard $0.35''$ mechanical wire that must not be inserted or retracted through a metal cannula or percutaneous needle.

TRUform Technology

A steel hypotube integrated into the VersaCross Connect™ LAAC Dilator that allows for re-shaping to provide more reach.

VersaCross Connect™ Dilator Alignment Requirement

The procedural requirement to keep the dilator side arm and sheath side port aligned throughout the procedure due to the LACK of rotational lock.

Baseline LAA Evaluation Angles

Evaluating the size and morphology of the LAA using baseline imaging at $0$, $45$, $90$, and $135$ degrees.

Transeptal Puncture Imaging Views

The required imaging orientations during puncture: Bicaval view (superior/inferior) and Short-axis view (anterior/posterior).

VersaCross™ RF Wire Crossing Mechanics

Advancing the RF wire $1-3\,\text{mm}$ beyond the dilator tip, turning RF delivery ON, advancing into the LA once bubbles appear, and positioning into the LSPV or mid LA.

Heparin Protocol (VersaCross Connect)

Administering heparin prior to transeptal puncture (TSP) when using VersaCross Connect, maintaining a target ACT of $200-300$.

LA Mean Pressure Goal

Left atrial mean pressure target of $\ge 10\,\text{mmHg}$; if pressure is $< 10\,\text{mmHg}$, a fluid bolus should be considered.

Distal Marker Band Alignment

Aligning the distal marker bands from left to right, blue to white, prior to unsheathing to form the FLX ball.

WATCHMAN FLX™ Deployment Methods

The three procedural techniques for deploying the device: Unsheathe, Advancement, and Combination.

PASS Criteria

The required assessment criteria to verify prior to releasing the device: Position, Anchor, Size, and Seal.

Device Recaptures

Procedural retrieval maneuvers performed on the device, categorized as either Full recapture or Partial recapture.