Mechanism of Hyperbaric Oxygen Chamber in Postoperative Repair

I. Core Mechanisms

1. Rapidly and greatly increase tissue oxygen partial pressure
   • Under normal pressure, oxygen is mainly carried by hemoglobin.
   • Hyperbaric oxygen allows a large amount of oxygen to be directly dissolved in plasma.
     → Oxygen content in tissues increases by several to more than ten times.
     → Solves the core problem of postoperative ischemia and hypoxia.
2. Reduce edema and improve microcirculation
   • Constrict blood vessels and relieve tissue swelling.
   • Improve capillary perfusion and reduce congestion.
     → Lower wound tension and facilitate healing.
3. Promote fibroblast proliferation and collagen synthesis
   • Adequate oxygen is essential for the proliferation of fibroblasts and epithelial cells.
   • Promote collagen synthesis and angiogenesis.
     → Accelerate wound healing and incision healing.
4. Enhance anti-infective ability
   • Improve the phagocytic capacity of leukocytes.
   • Inhibit the growth of anaerobic bacteria.
     → Reduce the risk of postoperative infection.
5. Alleviate ischemia-reperfusion injury
   • Scavenge oxygen free radicals.
   • Protect cell membranes and reduce cell necrosis.
     → Particularly beneficial for trauma, skin grafting, replantation of amputated digits, etc.
6. Promote nerve repair
   • Improve oxygen supply to nerve tissues.
   • Relieve nerve edema and promote myelin sheath repair.
     → Facilitate postoperative recovery of neurological function.

II. Overall Effects on Postoperative Repair

• Faster and firmer wound healing
• Significant reduction of swelling and pain
• Lower infection risk
• Improved survival of ischemic tissues, skin flaps and grafts
• Reduction of scar hyperplasia and complications