Emulsion Submucosal Cushion for Endoscopic Resection

The patent changes the physical and chemical parameters of the injection solution by using inverse thermosensitive polymers that undergo phase transition at body temperature. The solution has low viscosity at room temperature for easy injection, then transforms to high viscosity gel at body temperature to maintain the cushion, resolving the contradiction between ease of injection and cushion duration

The patent utilizes the phase transition property of inverse thermosensitive polymers (liquid at room temperature, gel at body temperature) to achieve both easy injection and long-lasting cushion maintenance. The phase change occurs automatically upon injection into the body, providing sustained elevation without requiring additional devices

The patent changes the viscosity parameter dynamically through temperature-dependent phase transition. The injection solution maintains low viscosity at room temperature for manual injection, then automatically increases viscosity upon reaching body temperature, achieving both ease of administration and prolonged cushion duration without requiring high-pressure devices

The patent introduces dynamic viscosity characteristics to the injection solution through the use of inverse thermosensitive polymers. The viscosity is not fixed but changes in response to temperature, allowing the solution to be easily injected when cold and maintain structure when warm, resolving the static contradiction between injectability and cushion longevity