Joerns Dolphin FIS (Fluid Immersion Simulation) Mattress System

Joerns Dolphin FIS (Fluid Immersion Simulation) Mattress System

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Joerns Dolphin FIS (Fluid Immersion Simulation) Mattress System

The Dolphin FIS (Fluid Immersion Simulation) Mattress Replacement from Joerns Healthcare is a progressive therapy system that simulates the effects of a body submerged in a fluid medium to provide pressure redistribution. This state-of-the-art pressure redistribution helps to prevent and treat wounds by minimizing soft tissue distortion and maintaining a consistently near-normal blood flow.

The Dolphin FIS System features a therapy control unit that adjusts and controls all functions of the bed. This control unit has easy-to-read graphics and possesses an intuitive set-up, making its use that much simpler. The control unit requires no manual input as it automatically adjusts the mattress to conform to the patient's body to provide an optimized three-dimensional support surface. The system also monitors the support surface more than 100 times per second to detect patient movement or surface changes, automatically adjusting the support surface as needed. By maintaining this optimal support surface setting, the Dolphin System creates a neutrally buoyant state and is able to provide an individualized immersion profile.

This system addresses pressure redistribution, friction reduction, and reduction in shearing forces, which are vital areas in the treatment of compromised skin. The pressure redistribution offered by the Dolphin System effectively treats amputations, burns, grafts, flaps, and pressure ulcers. The pain management that the Dolphin System provides helps to alleviate discomfort from AIDS, arthritis, and oncology treatment.

The mattress is made of smooth nylon fabric with low friction and low shear properties; it protects patients' skin from these harmful forces. The fabric is breathable and moisture-wicking, keeping your patient consistently dry and preventing skin maceration.

In the event of a fault condition, the system will sound an alarm and illuminate its LED. The system also features a rechargeable battery backup that gives the control unit power for up to 12 hours in the event of disconnection or power failure.

NOTE (for V-Matt Therapy Mattress Models ONLY) : There is an air-filled safety cell that protects patients from bottoming out in the event of power failure that exceeds the bed's battery life.

Product Video:

Clinical Indications:

  • The Fluid Immersion Simulation technology of the Dolphin System reduces soft tissue distortion and promotes blood flow, creating a platform that is highly effective for the prevention and healing of pressure ulcers through Stage IV, as well as treating patients with post-operative flaps and grafts.
  • The Dolphin FIS System may also be used for patients whose medical condition precludes turning and repositioning, or where these interventions may be contraindicated as they place the patient at risk for further compromise, as well as patients with spinal cord injury once the acute injury has been stabilized and these patients have been cleared by a physician. In all cases, Joerns clinical indications are guidelines and should be taken only as recommendations for consideration during individual patient assessment by the clinician.

Product Features:

  • Originally developed by the U.S. Navy, the mattress uses Fluid Immersion Simulation (FIS) System to treat patients with varying needs
  • Reduces vertical shear and minimizes soft tissue deformation making this mattress ideal for those who had flap surgery or skin grafts
  • Prevents skin breakdown and pressure sores (up to stage four)
  • Once patient is transferred to mattress, system automatically adjusts to patients weight and surface area to maximize benefits
  • The FIS System mimics buoyancy with 3 levels of “volumetric engagement” which helps with patients blood flow while making them feel like they are floating on top of the water
  • Easy to use “firmness” buttons adjust to users liking
  • Mattress runs on plugged-in connection but backup battery life lasts up to 12 hours
  • Easy set up with user friendly connections
  • Cover is 2-way stretch nylon fabric
  • Three-hose connection and CPR mechanism for easy deflation
  • Automatic and easy-to-use manual controls available
  • LED lights indicate battery life when in use as well as if there is an error with the microchip or another system issue
  • Maintains gluteal symmetry and fold with minimal distortion of the body while maintaining a normal orientation of bone, muscle, and subcutaneous tissue


  • STEP 1: Patient lays down and the Dolphin FIS calculates the patient's weight
  • STEP 2: As patient sinks into the surface, the Dolphin FIS calculates the surface area and provides the correct amount of air density to mimic fluid immersion.
  • STEP 3: Vascular Occlusion (measurement of blood blocked) is minimized as the Dolphin FIS dynamically reacts to patient's movement allowing for maintained near normal blood flow.

Extended Product Information:

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Product Specifications