The invention provides a medical gas slow-release patch and application thereof, and belongs to the field of biological
medicine. The medical gas slow-release patch comprises a water-blocking and gas-
blocking layer A, a
reaction layer B, a water-blocking and gas-permeable layer C and a water-absorbing layer D, wherein the
reaction layer B comprises a plurality of
layers of thin-film
solid-gas conversion materials. The application is designed by using a
solid gas production material, a semi-closed microenvironment is formed between the application and the
skin, the application can react with
wound exudate and
water vapor in real time, and conversion and release of a
solid medical gas source are started. According to the invention, a high-
oxygen environment can be locally established to promote local
wound healing, and the damage of the prior art (such as an
oxygen cabin) is avoided. According to the application provided by the invention, under the condition that high-pressure gas treatment equipment is not used, the concentration of medical gas such as
oxygen and
hydrogen can be rapidly increased, the medical gas such as oxygen and
hydrogen or combined gas can be locally, continuously and stably released, the release rate is close to be constant, and additional equipment is not needed for control.