watchman flx pro hero

LAAC is evolving: are you ready?

Join us at PCR London Valves 2025

16 - 18 November

Don’t miss two important symposia on November 17th!

Join “The Next Frontier in LAAC: Innovations and Opportunities” led Marek Grygier to explore new data and clinical trials.

Also, attend “LAA closure is evolving: Are you Ready?” led by Jens Erik Nielsen-Kudsk for insights on stroke prevention and patient selection.

Download the program

Shaping the future of LAAC therapy

Built on the proven performance of the world’s most studied LAAC device1, the WATCHMAN FLX Pro Device is optimized for healing.

WATCHMAN FLX Pro LAAC Device

The WATCHMAN FLX Pro Device is designed with three innovative features: new HEMOCOAT Technology, radiopaque markers for precise device placement, and a new 40mm size for larger appendages.

WATCHMAN FLX Pro LAAC Device

Optimized for Healing

Established

PVDF-HFP has a long history of safe use on permanently implanted, blood-contacting medical devices.2

Stable

A durable, thin coating encapsulates the device’s healing surface, maintaining pore size and the mechanical performance of the WATCHMAN FLX platform (<1µm).3  

Enhanced visibility for greater precision

Three new radiopaque markers help improve visual accuracy, for precise device positioning and anchoring.

enhnace

Enhance deployment precision

57% increased visibility for more accurate device positioning.4

Ensure device stability

Improved assessment of device anchoring when performing tug test.

fluro-wide

Enable confident release

Improved visualization of device orientation and alignment.

Close with confidence

A new 40mm size to help treat larger appendages.

40mm device

Expanded size, same trusted performance

  • Same performance
  • Same compression range (10‑30%)
  • Same depth requirement
*Devices not shown to scale

*Devices not shown to scale

size chart

Learn about the OPTION randomized clinical trial

Explore OPTION Clinical Trial data

References

1. Kar, S., et al, Circulation, 2021.

2. Wagner et al., Biomaterials Science: An Introduction to Materials in Medicine, 4th Edition, 2020.

3. Boston Scientific Data on file.

4. Bench study performed under CT by Boston Scientific. Data on file.

CAUTION: The law restricts these devices to sale by or on the order of a physician. Indications, contraindications, warnings, and instructions for use can be found in the product labelling supplied with each device. Products shown for INFORMATION purposes only and may not be approved or for sale in certain countries. This material not intended for use in France. 2025 Copyright © Boston Scientific Corporation or its affiliates. All rights reserved.