Heat-Treated Calcium Phosphate Cement for Surgical Delay

The patent divides the calcium phosphate cement into two separate components: a powder component containing calcium phosphate particles and a liquid component containing phosphate solution. This segmentation allows the surgeon to mix the components immediately before use, achieving rapid setting when needed, while maintaining the ability to postpone injection by controlling the mixing timing. The separation prevents premature reaction while enabling controlled rapid setting upon combination.

The calcium phosphate particles are pre-prepared with specific characteristics (particle size distribution, crystallinity, surface area) to ensure they are ready for rapid reaction when mixed. The powder component is prepared in advance with controlled properties that enable fast setting upon contact with the liquid component, while the surgeon retains the flexibility to delay mixing until the moment of injection by keeping the components separate until that point.

The patent introduces dynamic control over the setting process by separating the cement into mixable components. The surgeon can dynamically adjust the timing of mixing based on surgical needs - mixing immediately for rapid setting when the procedure is ready, or delaying mixing to postpone injection when unexpected situations arise. This dynamic approach transforms a static, fixed-timing process into a flexible, controllable one.