A plastics and reconstructive surgeon at Ruijin Hospital in Shanghai told me once that the hardest part of a six-hour facial reconstruction isn’t the grafting — it’s keeping the patient’s head dead-still in supine without the occiput going numb. When you’re doing microvascular anastomosis on a free flap, even a millimeter of head movement from the patient reacting to occipital discomfort can ripple through the entire surgical field. That conversation stuck with me because most positioning pads treat the back of the head as an afterthought — a flat surface, a thin sheet of foam, and the team moves on to more interesting equipment. But the occiput isn’t flat. It’s a convex curve with a prominent external occipital protuberance right at the center, and a flat support concentrates pressure on that single point. After two or three hours under general anesthesia, where vasomotor tone is pharmacologically reduced and tissue perfusion depends entirely on mechanical pressure distribution, that focal loading creates the kind of deep-tissue ischemia that shows up three days later as a Stage 2 pressure injury. The surgical team has already closed the chart and moved on, and the patient is left with a wound that didn’t need to happen. The AM-TW-004 was designed specifically to prevent that sequence.
This is a gel ring pad for supine cranial and facial procedures. The ring geometry cradles the occipital region from multiple angles around the posterior skull — the polymer gel conforms to the natural curvature rather than pressing against a single point. The patient’s head weight distributes into a continuous contact ring instead of a focal contact point, which is the engineering principle that prevents occipital pressure ulcers in long-duration supine cases. The ring’s inner diameter is sized so the occipital protuberance itself sits in the open center, suspended rather than loaded. The center opening also gives the surgical team the ability to tilt or rotate the head slightly intraoperatively without repositioning the entire pad — practical when the surgeon needs to adjust their approach angle mid-procedure for better flap inset visualization. We offer two thickness options — 7cm and 5cm — because patient anatomy varies and the relationship between table height, shoulder width, and head position isn’t one-size-fits-all. The low profile means the pad doesn’t interfere with neck extension or with standard surgical draping protocols.
Where the 004 fits in our head pad lineup: the AM-TW-001 is the prone pad — the patient faces down into a donut. The AM-TW-006 is ENT-specific with carved lateral channels for ear access. The AM-TW-008 is our horseshoe-shaped generalist for quick-turn mixed lists. The 004 is the specialist for supine craniofacial work where occipital pressure management matters most. If your OR runs long-duration supine neuro, plastics, maxillofacial, or oculoplastic lists, this is the pad you want under the head.
