Abstract: A surgical tool for use in the treatment of anal fistulas includes an elongate, flexible probe having a channel running there through; a seton attached to a proximal end of the probe; and a wire located within the channel, and movable along the channel; wherein: the probe has a first stiffness and the wire has a second stiffness, the first stiffness being less than the second stiffness.

Abstract: A surgical tool for use in the treatment of anal fistulas includes an elongate, flexible probe having a channel running there through; a seton attached to a proximal end of the probe; and a wire located within the channel, and movable along the channel; wherein: the probe has a first stiffness and the wire has a second stiffness, the first stiffness being less than the second stiffness.

Abstract: The present invention provides a method of abdominal pain relief in a subject comprising the steps of: identifying sub-diaphragmatic vagus nerve branches; applying an electrode to said nerve branch; stimulating the subject's vagus nerve branch by the application of electrical pulses through said electrode to said nerve in a given pattern and at a rate controlled by a controller such as to relieve pain. The electrical pulse may be applied at a number of frequencies, for a given duration with a given rest period and may be of a given magnitude, to control the pain experienced by the patient. In an example arrangement the stimulation is applied to the vagus branch of the celiac branch or posterior vagal trunk of the sub-diaphragmatic vagus nerve.