```json
{
"content": [
{
"type": "paragraph",
"content": "The Gastrostomy Feeding Tube (G-tube) ecosystem comprises an upstream supply of medical‑grade polymers and metal alloys, a midstream of manufacturers and system integrators that assemble tubes and insertion kits, and a downstream network of distributors, service firms, and clinical end users. Value is created as raw materials become certified devices, integrated with delivery technology, and delivered through regulated channels to patients requiring enteral nutrition. Each segment adds revenue by providing material certification, device engineering, packaging, logistics, training, and clinical use while complying with safety and performance standards."
},
{
"type": "list",
"items": [
{ "text": "Raw material/component suppliers — provide certified silicone, polyurethane, and stainless‑steel needed for tube construction.", "level": 1 },
{ "text": "OEM/manufacturers — fabricate and assemble G‑tubes to meet regulatory specifications.", "level": 1 },
{ "text": "Technology providers — design anti‑reflux valves, radiopaque markers, and secure locking mechanisms.", "level": 1 },
{ "text": "System integrators/EPCs — combine tubes with delivery kits, insertion tools, and packaging solutions.", "level": 1 },
{ "text": "Distributors/channel partners — manage inventory, cold‑chain logistics, and supply to hospitals and home‑care networks.", "level
