美国Stoelting公司生产的大动物脑立体定位仪是一种非常高效的仪器。最多可以在两个平行轨道上安装六个操作臂，可以实现在一个动物上多个探针独立定位。

Stoelting 大动物脑立体定位仪 产品特点：

锁定可靠

在进行大动物脑立体定位操作时，有时会需要从动物的侧面或是下面来进行操作，这时就需要将操作臂倾斜一定角度，可靠的锁定对于这种操作来说非常的重要。

全方位调节

通过引导螺纹，操作臂可以控制左右和上下方向的移动，前后控制通过楔形榫头来进行，在每个方向上都可以移动80mm。通用关节则使操作者可以在上下或左右平面上，让夹持器的最大转动可达90度。改进型的锁定部件可以让脑立体定位仪锁定在任何角度而不发生滑动，当然也提供了90度垂直方向的绝对锁定。

多功能

其它型号的动物适配器和耳棒都可以用到51800型大动物脑立体定位仪上。

移动平滑

标准型脑立体定位仪采用了独一无二的三线螺纹，可实现最佳的位置定位，定位过程平滑，线性。

可选前后微调组件

可选的51858组件，可以25mm范围内，以10微米为步进，前后微调。通过一个伸出的旋纽来控制导轨和操作避的前后移动。

The Parallel Rail Animal Stereotaxic Instrument, manufactured by Stoelting, provides superior performance. Up to six manipulator arms may be conveniently positioned on the two parallel rails. Thus, several probes may be independently positioned in one animal.

Reliable Locks
If it is necessary to tilt the stereotaxic frame to gain access to the animal’s side or underside, the tilting and angling universal joint on Lab Standard™ manipulators have the most secure, reliable locks of any stereotaxic instrument.

Easily Read Scales
Precise, laser engraved graduations allow vernier scales to be aligned to 0.1 mm. The scales are oriented to enhance readability from common user positions. Standard manipulator arms have 100 micron resolution, while high-quality digital arms have a resolution of 10 microns.

Versatile
Other species adaptors, probe holders and ear bars manufactured by Stoelting may be used on the 51800 series of stereotaxic instruments allowing for a use with a  wide range of animals and procedures.

A/P Microdrive Available

51858 Microdrive Figure 1

The optional 51858 Anterior/Posterior Microdrive provides fine movement control in the A/P dimension with 25 mm range and 10 micron graduations. The 51858 mounts between the rail and the manipulator and it includes a longer probe holder shaft for the extra height. See Figure 1.

Included Components

The 51800 comes equipped with:

• Two 51804 LH Manipulators (digital upgrade available)
• Two 51806 RH Manipulators (digital upgrade available)
• One 51801 Parallel Rail Frame 
• One 51826 Cat/Monkey Head Holder w/ 18° ear bars (Rat adaptor or 45° ear bars may be substituted at no extra charge)
• One 51680 Universal swivel stand with 4" x 4" mounting support plate
• One 51871  Base Plate, Plain 17in x 13in

The 51801 comes equipped with:

• One 51801 Parallel Rail Frame
• One 51826 Cat/Monkey Head Holder with 18° ear bars (Rat adaptor or 45° ear bars may be substituted at no extra charge)
• One 51680 Universal swivel stand with 4" x 4" mounting support plate
• One 51871 Base Plate, Plain 17in x 13in

Optional Mounting Plates
The optional 51872, Mounting Plate 12in x 36in base plate has four, full-length tee slots for mounting other instruments on the same base with a 51800 stereotaxic.

parallel rail accessories

Because of the Parallel Rail Stereotaxic Instrument's extraordinary flexibility you'll find that additional accessories can help you utilize the instrument's full potential