The present invention is directed to ceramic fiber insulation and related products and methods. The method includes detecting an ambient temperature and setting a target temperature based on the ambient temperature. The bracket assembly may include one or more flanges for engaging multiple sides of the block. The cutting end and the static casing are separated by a flexible joint, which serves to inhibit the transfer of vibrational energy, and consequently heat, from the cutting end to the static casing. For example, an injection material is injected into a submucosa by the use of a syringe, and in the injected part, a swelling swollen into the internal cavity of the bronchus is formed to tightly seal the living tissue of the bronchus or a bronchiole, thereby embolizing a target bronchus.