Abstract: A medical retractor having a first retractor blade with a shim channel disposed in the first retractor blade. The shim channel has a cross-sectional area which remains unchanged for an entire length of the shim channel. The unchanged cross-sectional area of the shim channel permits medical tools to slide therethrough to engage a surgical site. Or, this permits the medical retractor to slide down over the medical tools that are engaged with the surgical site. Also, a medical retractor assembly that includes a medical retractor having a first retractor blade with a shim channel disposed in the first retractor blade. The medical retractor assembly also includes a first dilator having a cylindrical component and a shim component. The shim component can slidably engage with the shim channel of the medical retractor. The first dilator has a cross-section for most of its length that has a round portion and an arc-shaped portion attached to the round portion.

Abstract: The present invention provides a spinal plate which is used to perform fixation surgery on a spine in orthopedic surgery and neurosurgery. The spinal plate comprises a central body and a pair of rotation portions which are disposed on both sides in a longitudinal direction of the central body and each of the pair of rotation portions has bone screw. The spinal plate also comprises spike screw in each of the pair of rotation portions. Each of the pair of rotation portions include a rotation connection portion, and the central body includes a rotation support portion. Rotation pins are used to connect the central body with the pair of rotation portions disposed on both sides in a longitudinal direction of the central body and enable the pair of rotation portions to rotate clockwise or counterclockwise with respect to the central body.

Abstract: The present invention provides a spinal plate which is used to perform fixation surgery on a spine in orthopedic surgery and neurosurgery. According to the present invention, a rotation device and a locking device may be installed so as to be used by fixing any one or more of longitudinal ends of the plate with being rotated at any angle, thereby allowing a doctor to modify a shape of the spinal plate to the shape desired by the doctor, and to perform the surgery by coping with various spin shapes of patients. In addition, according to the present invention, since the shape of the spinal plate may be rotated at any angle, it is possible to cope with various spin shapes of the patients.

Abstract: The present invention provides a spinal plate which is used to perform fixation surgery on a spine in orthopedic surgery and neurosurgery. According to the present invention, a rotation device and a locking device may be installed so as to be used by fixing any one or more of longitudinal ends of the plate with being rotated at any angle, thereby allowing a doctor to modify a shape of the spinal plate to the shape desired by the doctor, and to perform the surgery by coping with various spin shapes of patients. In addition, according to the present invention, since the shape of the spinal plate may be rotated at any angle, it is possible to cope with various spin shapes of the patients.