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Rat hydraulic impact craniocerebral injury equipment and experimental method

A technology of hydraulic shock and craniocerebral injury, which is applied in the field of medical research, can solve the problems of the second strike, unstable damage parameters, and low degree of automation, and achieve the effect of avoiding the second strike

Pending Publication Date: 2018-06-15
THE SECOND HOSPITAL OF HEBEI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, most of the pendulums are used at home and abroad to drive the piston to generate hydraulic pressure, and the degree of automation is not high, which often causes the following shortcomings: 1. The operation relies too much on the experience of the experimenter, resulting in large errors between different operators; 2. , Unable to accurately preset strike parameters, unstable damage parameters, imprecise strike intensity; 3, prone to secondary strikes

Method used

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  • Rat hydraulic impact craniocerebral injury equipment and experimental method
  • Rat hydraulic impact craniocerebral injury equipment and experimental method
  • Rat hydraulic impact craniocerebral injury equipment and experimental method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1 Rat hydraulic shock craniocerebral injury equipment

[0050] This example Figure 1 ~ Figure 3 shown, including:

[0051] The strike system used for the experiment, and the control machine for controlling the strike system, wherein,

[0052] 1) The strike system includes:

[0053] ① An air pressure device storing high-pressure gas, the air pressure device in this embodiment adopts the high-pressure gas tank 24 of the prior art.

[0054] ②Pneumatic-hydraulic conversion device, used to convert the high-pressure gas from the high-pressure gas tank 24 into hydraulic pressure, and the gas outlet of the pneumatic device is connected to the pneumatic-hydraulic conversion device through the air guide tube 3 .

[0055] The air guide tube 3 in the present embodiment comprises a first air guide tube 31 and a second air guide tube 32, the first air guide tube 31 is a T-shaped tube, and the long arm of the T-shaped tube is directly connected to the outlet of the high-pr...

Embodiment 2

[0064] Example 2 Experimental method of rat hydraulic shock craniocerebral injury equipment

[0065] This example is completed using the rat hydraulic shock craniocerebral injury device described in Example 1, including the following steps in sequence:

[0066] A. Inject clean, normal-temperature physiological saline that removes air bubbles into the space of the liquid storage tank 15 located between the piston 17 and the liquid outlet pipe 16 through the water injection 14 .

[0067] 1. Presetting of blow value: The pressure sensor installed at the outlet of the high-pressure gas tank transmits the pressure signal in the high-pressure gas tank to the control unit 2 in real time, and the control unit 2 displays the pressure on the left side of the display screen, press the housing The adjustment button 10 on 1, through the adjustment of the upper and lower values ​​of the adjustment button 10, set the required striking parameters on the right side of the display screen 21, th...

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Abstract

The invention provides rat hydraulic impact craniocerebral injury equipment and an experimental method thereof. The rat hydraulic impact craniocerebral injury equipment comprises an impact system which is composed of an air pressure device, a hydraulic impact device and an air pressure-hydraulic pressure conversion device as well as a control machine, wherein the air pressure device is connected to the air pressure-hydraulic pressure conversion device via an air conduit, and the air pressure-hydraulic pressure conversion device is used for driving the hydraulic impact device to impact an experimental object; the control machine comprises a control unit; a first control signal output end of the control unit is connected to a first switch, a second control signal output end is connected to asecond switch, a first pressure signal input end is connected to a first pressure sensor and a second pressure signal input end is connected to a second pressure sensor; the control unit is connectedto an external power supply via a power plug; and the control machine further comprises a regulating button, a pressure memory button and an impact button. The equipment provided by the invention issimple in structure, high in automation degree and strong in stability, and the equipment is precise in impact experimental data and free from influence of human factors. The equipment provided by theinvention is applicable to impact experiments of craniocerebral injury.

Description

technical field [0001] The invention belongs to the field of medical research, and relates to a brain injury model, in particular to a rat hydraulic shock craniocerebral injury device. The invention also provides an experimental method for applying the rat hydraulic shock craniocerebral injury device. Background technique [0002] Traumatic brain injury is a common and frequently-occurring disease in neurosurgery. Epidemiological studies have found that the annual incidence of traumatic brain injury in my country is 1 / 1000-1 / 500 (that is, 100-200 people in 100,000 people will suffer from brain injury). Injury), and more often in young and middle-aged men, the mortality rate is as high as 27.3%, and the poor prognosis rate (including death, vegetative survival and severe disability) is 53.17%. The high mortality and high disability rates of traumatic brain injury have caused great suffering to patients and their families, and also brought heavy economic burdens to families and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61D1/00
CPCA61D1/00
Inventor 孙国柱赵奇韬孙博宇王巍松
Owner THE SECOND HOSPITAL OF HEBEI MEDICAL UNIV
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