Technologies are generally described for devices for ablation of a target material. The device may be a medical device and may have a medical tool portion and an ablative device portion. The ablative device portion has at least two independently controllable firing chambers. A source of fluid is in fluid communication each firing chamber. Each of the firing chambers is configured to propel the fluid to ablate a target material according to a programmed pattern of ablative treatment for the target material. Methods of ablation and use of the disclosed device are also described.
