Abstract: A surgical apparatus having a surgical tip, comprising: cooling means for freeze-sealing mammalian tissue, and control means, which control and induce coolant flow from coolant supply means, through a coolant outflow tube into an expansion chamber at the surgical tip. The temperature at the tip is thus lowered to a temperature at which mammalian tissue contacting the expansion chamber would adhere to the apparatus. The apparatus additionally comprises electrically powered heating means acting to raise and regulate the temperature of the apparatus; control means for activating the heating means, and power supply means. The apparatus is especially useful for surgery of tissue within a capsule, such as cataract surgery. In a preferred embodiment, the apparatus additionally comprises: a drill member coupled with a motor, an irrigation tube and an aspiration tube.