A probe unit includes, a probe configured to treat a bone by ultrasonic vibration, a hollow sheath which surrounds the probe and which has a first portion at a small distance from a central axis, and a second portion at a greater distance from the central axis than the first portion, and a knob configured to rotate the sheath relative to the probe between a first position for insertion between the bone and a living tissue facing the bone so that the first portion is located between the bone and the living tissue and a second position for insertion between the bone and the living tissue so that the second portion is located between the bone and the living tissue.

A tourniquet, a method thereof, and a system thereof that can secure logging of compliance with an external communication apparatus, which marries two segregated steps of infusing and logging. The tourniquet has a controller that monitors compliance based on signals received from various switches/sensors that indicate whether a clasp has been inserted in the buckle and thereafter whether a strap is applying pressure, and the clasp has been released within a predetermined time after the clasp has been inserted. The controller initiates communication with the external communication apparatus. Upon receiving a log successful communication from the external communication apparatus, the controller alerts the user that the logging was successful or compliance has been met.

A guiding device includes: a guide having a tubular shape. The guide can include a first through hole for insertion of an ultrasound probe. The guide can be configured to guide movement of the ultrasound probe inserted through the first through hole. A protrusion can protrude from one end of the guide and can have a sectional shape that corresponds to a sectional shape of the distal portion of the ultrasound probe, the sectional shape of the protrusion being orthogonal to an axis of the first through hole, and the sectional shape of the distal portion of the ultrasound probe being orthogonal to the axis of the first through hole.

A guiding device can include a guide including a through hole for insertion of an ultrasound probe that forms a tunnel to a bone. The guide can be configured to guide movement of the ultrasound probe inserted through the through hole; an offset portion offset from an axis of the through hole. The guiding device can also include an offset portion with an abutment portion configured to abut to an outer wall of the bone, on a side on which the through hole is located, in a direction orthogonal to the axis and a bone-tunnel introduction portion provided on an opposite side to the side on which the through hole is located and being configured to be inserted into the tunnel. The bone-tunnel introduction portion can have a sectional polygon shape smaller than a polygon on an inner circumferential face of the through hole.

An attainment with an osteotomy surgical instrument for the nasal osteotomy is described; it is set up of at least a couple of lever arms and a couple of sharp spouts that are mutually hinged at least in a rotation fulcrum, where said sharp spouts show an active portion with the cross sectional having a sharp angle, in which the sharp angles of the two sharp spouts are opposed and said active portion extends for a length greater than 30 mm and shorter than 45 mm.

An attainment with an osteotomy surgical instrument for the nasal osteotomy is described; it is set up of at least a couple of lever arms and a couple of sharp spouts that are mutually hinged at least in a rotation fulcrum, where said sharp spouts show an active portion with the cross sectional having a sharp angle, in which the sharp angles of the two sharp spouts are opposed and said active portion extends for a length greater than 30 mm and shorter than 45 mm.

A probe unit includes, a probe configured to treat a bone by ultrasonic vibration, a hollow sheath which surrounds the probe and which has a first portion at a small distance from a central axis, and a second portion at a greater distance from the central axis than the first portion, and a knob configured to rotate the sheath relative to the probe between a first position for insertion between the bone and a living tissue facing the bone so that the first portion is located between the bone and the living tissue and a second position for insertion between the bone and the living tissue so that the second portion is located between the bone and the living tissue.

Surgical systems and methods for performing an osteotomy are disclosed herein. A surgical system includes a frame including a first section, second section, third section, fourth section, and a window. The surgical system can include a cut guide that can fit within the window and contact the first side, the second side, the third side, and the fourth side. The surgical system can include an aligner that can fit within the window and contact the first side, the second side, the third.

A tourniquet, a method, and a system that can secure logging of compliance with an external communication apparatus and marry two segregated steps of infusing and logging. The tourniquet has a controller that monitors compliance based on signals received from various switches/sensors that indicate whether a clasp has been inserted in the buckle and thereafter whether a strap is applying pressure, and the clasp has been released within a predetermined time after the clasp has been inserted. The controller initiates communication with the external communication apparatus. Upon receiving a log successful communication from the external communication apparatus, the controller alerts the user that the logging was successful or compliance has been met.

An endoscopic pedicle probe for use during spinal surgery to form a hole in a pedicle for reception of a pedicle screw has an enlarged proximal end for cooperation with the hand of the surgeon and an elongate shaft terminating in a distal tip that may be pushed through the pedicle to form the hole. An integrated endoscope and light extend through the shaft to enable the surgeon to visually observe the target area, and a conduit extends through the shaft to convey a fluid to irrigate the target area. In a preferred form the probe is connected with an electromyographic or mechanomyographic monitoring system to alert the surgeon when a breach is about to occur. In a further embodiment, two endoscopes are associated with the probe. The complete probe may be disposable, or just the tip may be detachable for disposal or replacement.