FMwand® Hemostatic Dissector

FMwand Ferromagnetic Surgical Handpiece

The FMwand is an intelligent thermal dissection device that precisely cuts and coagulates with a fraction of the tissue injury compared to monopolar electrosurgery, without passing any electrical current through the patient.

Laser-Like Precision

  • Tactile control with minimal tissue drag
  • Surface only thermal effect
  • Predictable, char-free layer-by-layer dissection with optimal visualization of tissue planes
  • Safe to use near nerves, vessels, and all delicate organs, including the heart

Minimal Thermal Injury

  • As little as 1/10th the thermal injury of monopolar electrosurgery
  • As few as 80 microns (0.08 mm) of thermal spread
  • Clear margins for reliable pathology specimens
  • Surgeons note less unintended damage to tissue, leading to reduced use of blood products during surgery, and less post-operative edema and drainage

Electrical Silence

  • No electrical current passes through tissue
  • No grounding pad
  • No spark, arcing, or stray current
  • Surgeons and anesthesiologists report no generation of dysrhythmia, and no interference with electrophysiological monitoring, ultrasound imaging, cochlear implants, or CIEDs

Predictable Control

  • Ferromagnetic halo of heat ensures uniform tissue effect around dissection loops
  • Precise dissection in all soft tissues, including muscle and adipose, even in wet environments
  • Effective dissection through dense adhesions and tumors
  • Able to discern and divide fine tissue planes, such as tumor margins

Videos of the FMwand in Action

Lysis of Adhesions and Liver Resection Using the FMwand - Lysis of abdominal adhesions and liver resection using the FMwand. Procedure was performed and narrated by Dr. Francesco Izzo.

Redo Cardiothoracic Dissection Using the FMwand - Domain Surgical's FMwand used to perform complex dissection during redo cardiothoracic procedures in a pediatric patient. Surgery and narration performed by Dr. Richard Gates.

Abdominoplasty Procedure Using the FMwand - Domain Surgical's FMwand used in an abdominoplasty procedure. Surgery performed and narrated by Dr. Drew Schnitt.

Videos    View all surgical videos showing the FMwand in use
FMwand

Handpiece Design

  • Available in 100 mm and 150 mm lengths
  • Dual activation modes: MAX mode for uniform hemostatic dissection in most tissue types, and MIN mode for fine dissection, spot cautery, and pre-treating vessels
  • Power levels can be independently set for each activation mode from 5 to 60 Watts
  • Onboard microprocessor continuously monitors and adjusts closed-loop delivery of thermal energy 200 times per second
  • Patented integrated active cooling system ensures localization of heat at the tip and rapid cool down
FMwand Dissecting Loops

Dissection Loops

  • Each FMwand features a non-stick precision dissection loop
  • Loops are available in several shapes and sizes
  • Dissection loops activate instantly and cool in seconds
  • The tip of the FMwand can be rotated 180°
FMwand with Integrated Smoke Evacuation

Integrated Smoke Evacuation

  • Certain FMwand models include an integrated smoke evacuation channel and a removable cap; integrated smoke evacuation is available in all of the same lengths as standard FMwand
  • Smoke evacuation tubing connects to a dedicated smoke evacuation system, or to other hospital suction source

Melanoma Excision Using FMwand with Integrated Smoke Evacuation

The FMwand with integrated smoke evacuation was used to effectively remove surgical smoke during a melanoma excision with sentinel lymphadenectomy.

FMX Power Modules

FMX Power Modules

FMX Power Modules connect the FMwand to the generator and intelligently manage communication between each component within the system. FMX Power Modules are available in both reusable and single-use disposable configurations. The FMX Reusable Power Module (left) can be autoclave resterilized for use in up to 100 procedures, providing a cost-effective option for the hospital. The FMX Disposable Power Module (right) is single-use only and is discarded following each surgical procedure.


  FMX Reusable Power Module (RPM) Directions for Use

  Read more about FMX ferromagnetic surgical technology and how it works.

Clinical outcomes that truly make a difference

Reduced Amount of Thermal Injury

Comparative incisions were made in pig liver at equal depth using both monopolar electrosurgery and the FMwand. Histology data were analyzed to measure the exact depth of incision (thick black line), and the area of collateral thermal injury (orange area). The FMwand resulted in as little as 1/10th the amount of total thermal injury when compared to monopolar electrosurgery.

Thermal Injury of the FMwand

Areas of thermal injury using monopolar electrosurgery (left) and the FMwand (right).

Maximum Tissue Temperature Comparison

Thermal images of incisions made in rabbit muscle were analyzed to measure the maximum tissue temperature at the incision site 0.1 second following power deactivation of both monopolar electrosurgery and the FMwand. Monopolar electrosurgery (left) maximum tissue temperature was 132.9° C, while the FMwand (right) maximum tissue temperature was 78.1° C.

Thermal Comparison

Thermal images showing monopoloar electrosurgery (left) and the FMwand (right).

Electrical Silence

Unlike monopolar electrosurgery, which conducts electrical current through the patient, the FMwand uses pure thermal heat to cut and coagulate tissue. No grounding pad, no spark, no arcing, and no stray current.

Electrical Silence of the FMwand

The EKG chart shown above is from an actual surgery. The top chart shows electromagnetic interference caused when using monopolar electrosurgery, and the bottom chart shows no interference when using the FMwand during the same surgery.

Improved Healing Outcomes

Comparative incisions were made in rabbit paraspinous muscle using monopolar electrosurgery and the FMwand in order to compare healing properties of different technologies. After 14 days, incisions made with monopolar electrosurgery (left) showed dramatic evidence of injury, while FMwand incisions (right) showed evidence of superior healing.

Healing Study with the FMwand

Histology of incisions made with monopolar electrosurgery (left) and the FMwand (right).

The FMwand offers surgeons an optimal combination of attributes required from an energy-based dissection device. The table below illustrates how FMwand compares with commonly used energy-based dissection technologies.

 

Mono Cut

Mono Coag

Bipolar

Ultrasonic

Laser

FMwand

Precise tissue dissection

Low-drag tissue incising

Consistent performance in variety of tissues

Reliable hemostasis

Minimized depth of tissue injury

Reduction of charring/eschar

Elimination of stray electrical energy

Elimination of grounding pad

Effective tissue resection

Excellent tactile feedback/control

Near instant onset/offset of effect

Simple setup and user interface



Published Clinical Evidence

Using the FMX Ferromagnetic Surgical System

The FMX Ferromagnetic Surgical System combines state-of-the-art surgical technology with unparalleled ease-of-use and simplicity. Prepare the FMwand by following these simple steps:
FMX Generator

1

Plug the FMX Power Module into the front panel of the FMX Generator

2

Snap the power module into the back of the FMwand Handpiece

3

Set the power settings on the generator and the FMwand is ready

Ordering Information

Order Code

Product Description

Image

Units / Case

 

 

Order Code
FM2101

FMwand Handpiece - 100 mm Length with 2 mm Dissecting Loop Includes: Dual-button 100 mm FMwand handpiece with 2 mm dissecting loop, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FM2101S

FMwand Handpiece with Integrated Smoke Evacuation - 100 mm Length with 2 mm Dissecting Loop Includes: Dual-button 100 mm FMwand handpiece with 2 mm dissecting loop, smoke evacuation cap, smoke evacuation tubing, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FM2102

FMwand Handpiece - 100 mm Length with 5 mm Resecting Loop Includes: Dual-button 100 mm FMwand handpiece with 5 mm resecting loop, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FM2102S

FMwand Handpiece with Integrated Smoke Evacuation - 100 mm Length with 5 mm Resecting Loop Includes: Dual-button 100 mm FMwand handpiece with 5 mm resecting loop, smoke evacuation cap, smoke evacuation tubing, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FM2121S

FMwand Handpiece with Integrated Smoke Evacuation - 100 mm Length with 2 mm Dissecting Blade Includes: Dual-button 100 mm FMwand handpiece with 2 mm dissecting blade, smoke evacuation cap, smoke evacuation tubing, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FM2301

FMwand Handpiece - 150 mm Length with 2 mm Dissecting Loop Includes: Dual-button 150 mm FMwand handpiece with 2 mm dissecting loop, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FM2301S

FMwand Handpiece with Integrated Smoke Evacuation - 150 mm Length with 2 mm Dissecting Loop Includes: Dual-button 150 mm FMwand handpiece with 2 mm dissecting loop, smoke evacuation cap, smoke evacuation tubing, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FM2302

FMwand Handpiece - 150 mm Length with 5 mm Resecting Loop Includes: Dual-button 150 mm FMwand handpiece with 5 mm resecting loop, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FM2302S

FMwand Handpiece with Integrated Smoke Evacuation - 150 mm Length with 5 mm Resecting Loop Includes: Dual-button 150 mm FMwand handpiece with 5 mm resecting loop, smoke evacuation cap, smoke evacuation tubing, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FM2321S

FMwand Handpiece with Integrated Smoke Evacuation - 150 mm Length with 2 mm Dissecting Blade Includes: Dual-button 150 mm FMwand handpiece with 2 mm dissecting blade, smoke evacuation cap, smoke evacuation tubing, air tubing – An FMX Power Module is required for use with this device

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FMDPM

FMX Disposable Power Module Includes: Single patient use FMX Disposable Power Module

[ image ]

Units / Case
5

FDA Clearance

CE Marked

Order Code
FMRPM

FMX Reusable Power Module Includes: FMX Reusable Power Module - can be autoclave resterilized for use in up to 100 separate procedures

[ image ]

Units / Case
1

FDA Clearance

CE Marked

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