How POSP Helps After Heart Surgery
Morph uses a technique called Percutaneous Nerve Field Stimulation (PNFS).
A trained healthcare provider places three small leads (thin needles) in strategic locations around your ear.
These leads connect to a small stimulator that is pre-programmed to send gentle electrical impulses that target nerve branches to reduce pain signals and promote comfort — without sedating your brain or risking dependency.
Many patients notice improvement within the first hour of wearing it.
Most people describe the sensation as mild or barely noticeable, and many stop feeling it altogether after a short time — but the device continues to work in the background.
POSP is an FDA-cleared nerve stimulator designed for short-term relief of post-operative pain following cardiac surgery. Worn behind the ear, it delivers gentle electrical pulses over three days to help lower pain levels—without raising addiction risk or using systemic medications.
What to Expect
Applied in-hospital by a trained provider after surgery
Comfortable and discreet
Opioid-sparing, non-drug pain relief
May help you move, cough, and breathe more comfortably for a smoother recovery
Can be used alongside your cardiac rehabilitation plan
Safety Information
Not suitable for people with pacemakers, implantable defibrillators, or bleeding disorders
Do not use if you have open wounds or skin disease near the ear area
Made for single use only
Not suitable for submersion
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Yes. The device is FDA-cleared for post-operative cardiac pain and has no known adverse effects on heart function.
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POSP is contraindicated for anyone with a pacemaker, implantable cardioverter-defibrillator (ICD), or similar cardiac electronic device due to risk of interference. Always inform your care team about any implanted medical devices before use.
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You may feel three quick pinches when the leads are inserted and a mild tingling sensation from the device. The sensation is not painful and often fades within minutes.
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Possibly. Many patients use the Morph device as part of a multi-modal pain plan, which can help reduce — but not always eliminate — the need for medications.
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Ask your surgical care team before or after your operation. It can be applied during your hospital stay by a trained professional.
POSP is FDA-cleared (510(k) K221425) for adjunctive, short-term relief of post-operative pain following cardiac surgery. It is not approved for other types or durations of pain. Always consult a licensed medical provider before beginning any treatment.
ASK YOUR CARE TEAM
if POSP is part of your hospital’s cardiac recovery program. Many patients feel a difference within the first hour.