Brain Stereotaxic Localizers for Large Animals
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- Product Description
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Brain stereotactic instruments currently in use can be divided into two main categories:
1. Rectilinear (Rectilinear) or Triplanar (Triplanar). It is to three imaginary each other perpendicular to each other three planes, composed of spatial three-dimensional right-angle coordinates. A tiny structure in the deep part of the brain can be localized according to this coordinate system. In use, from the electrode moving frame on the scale, can read out the electrode tip of the three-dimensional coordinate value.
2, equatorial (Equatorial). It is composed of two arc beams at right angles to each other, in accordance with the principle of three-dimensional coordinates (Polar Coordinate) made, but also provides for the spatial location of the brain structure, is now used for human locator. This paper focuses on the linear stereotactic localizer. The basic design principles of stereotactic localization, no more than the following items.
3, the use of animal skull surface of certain anatomical signs, such as sagittal suture, the central axis of the external auditory canal, the central part of the infraorbital rim, the center of the front chimney (Bregma), the tip of the herringbone suture (Lamda) and the root of the upper incisors and other parts of the brain with the surface and the depth of a structure (such as the nucleus, before the conjunction, etc.) of the relative constancy of the relationship between the brain from the external determination of the position of the structures in the deeper part of the brain.
4. Using three-dimensional spatial coordinates in millimeters to describe the spatial location of the deep brain structures.
5, with a solid metal frame, plus several rods, clips, composed of accurate, and both sides of the symmetrical head clamp, the animal's head according to a certain number of parts as a fixed point, fixed firmly (does not allow 1/5 mm movement).
6, with a set of three-dimensional sliding ruler, can be read 1/10 mm electrode moving frame (on the lower end of the lower slide support ruler is equipped with electrode clips) to guide the electrodes can be accurately inserted into a specified structure in the brain.
7, electrode moving frame and fixed animal head of the metal frame, preferably for the two parts, in the use of the electrode moving frame can be accurately and firmly mounted on the metal frame.● There are a variety of animal head clamps (standard one, if you need to purchase another), can be used for a variety of experimental animals. For example, pigs, dogs, cats and other larger animals, the slide rule of the electrode moving frame can be moved to a longer paradigm.
● The number of parts is small, the main frame is thicker, and the main parts are made of the same metal, which can make the expansion coefficient of each part the same and avoid contact potential. Electrode moving frame and animal head fixed clip mounted on the main frame.
● The electrode moving frame is easy to load and unload. The electrode moving frame can be unloaded when the animal head and surgical operations are performed, and the instrument becomes a head fixator that can be used independently. This ensures that the electrode holder is not easily damaged or distorted.
● The instrument is fitted with a plurality of perfectly symmetrical electrode holders, which allow simultaneous insertion of electrodes in the brain structures of the same name on both sides, or insertion of multiple electrodes on the same side.
● The vertical slide rule of the electrode moving frame should be able to be rotated at a certain angle in the forward-backward and left-right directions, so that it can be used in the horizontal line of the head of the fixed animal, or the electrodes can be inserted into the brain at a certain angle.
● The electrode fixing clip on the electrode moving frame should be flexible and easy to unload, so that the electrode can be easily loosened and detached when the electrode is buried.
● The reading of each slide rule should be able to read 1/10 millimeter more accurately.Technical parameters:
1、Weight: about 10kg
2, rail length: 400mm
3, rail spacing: adjustable
4, precision: ± 0 .1mm
5、 Material: alloy material
6、 External dimensions: 950×450×500mm (general size to be provided by the user design)
7、 Operation arm 360 degree rotation, swing 180 (± 90 °)
8、 Counting accuracy: ±0.1mm
9、 Three-dimensional propeller precision: ±0.1mm
10、 Three-dimensional propulsion stroke: 80mm (X-axis: 80mm, Y-axis 80mm, Z-axis 80mm)
11、 Scale laser engraving
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