Electrical control system used for zooperal ventral spinal cord injury impactor

Abstract

The invention discloses an electrical control system used for a zooperal ventral spinal cord injury impactor. The system comprises an upper computer module, a lower computer module, three direct-current motor driving modules, an electromagnet driving module, a sensor signal conditioning module, a key module and a limit switch module. The upper computer module is used for providing a friendly graphic user interface used for controlling parameter setting, indication of limit switch states and displaying and storage of sensor data. The lower computer module is used for controlling all modules on a management execution layer, receiving control parameters sent by an upper computer and sending the limit switch states and the sensor data to the upper computer; the three direct-current motor driving modules are used for driving operations of direct-current motors according to the indication of the lower computer module; the electromagnet driving module is used for driving the movement of an electromagnet according to the indication of the lower computer module; the sensor signal conditioning module is used for performing conditioning on displacement and impact strength data measured by a displacement sensor and a pressure sensor; the key module is used for processing key input signals; and the limit switch module is used for processing limit switch input signals.

Description

technical field [0001] The invention relates to a medical animal experiment device, in particular to an electrical control system of an impactor for ventral spinal cord injury in animal experiments. Background technique [0002] Traditional animal spinal cord injury impact experiments usually use the Weight Dropping (WD) method to impact the dorsal side of the spinal cord. The specific method is to perform a posterior laminectomy on an anesthetized experimental animal to expose but not destroy the dura mater, and then place a A heavy object with a known mass falls from a certain height in a free-fall manner, and hits the exposed dura mater on the dorsal side of the animal's spine, causing a certain degree of damage to the dorsal spinal cord. Since the falling of heavy objects has acceleration, but does not tear the dura mater or cut the spinal cord, it belongs to the dynamic load contusion type. The injury model was characterized by weight weight, drop height, and spinal co...

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Problems solved by technology

[0003] The injury site caused by the above experimental method is the dorsal side of the spinal cord. However, most patients with spinal cord injuries caused by accidents such as car accidents in daily life are injured on the ventral side. The method of falling heavy objects cannot simulate this kind of situation well.

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