Modified type static inhalation toxicant exposure cabinet

A poisoning cabinet and an improved technology, applied in the field of diagnostic instruments and poisoning cabinets, can solve the problems of wasting material resources, polluting the laboratory environment and the surrounding environment, and easily existing dead ends, saving electric energy, shortening test time, The effect of improving concentration uniformity

Inactive Publication Date: 2008-01-02
SOUTHERN MEDICAL UNIVERSITY
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patented technology speeds up the volatilization speed of the test chemical and improves the concentration uniformity of the test chemical in the cabinet to a certain extent, it still has the following deficiencies: First, the cabinet is a cuboid, and the air circulation in the cabinet is easy There is a dead angle, which affects the concentration uniformity of the test chemical in the cabinet. The designer tried to make up for it by setting two diagonal fans, but the effect is still not very satisfactory, and material resources are wasted; the second is to place the test chemical The distance between the heating device and the fan is too far, and there is no organic connection between the two. The gas generated when the test chemical is heated and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modified type static inhalation toxicant exposure cabinet
  • Modified type static inhalation toxicant exposure cabinet

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] 1 and 2, the cabinet 1 is a cylindrical container made of a transparent organic glass tube, with an open upper end and a cover plate 5 on the mouth, and a closed space is formed in the cabinet 1. A sample volatilization box 6 is provided under the cover plate 5 (see Figure 3 and Figure 4). The volatilization box 6 is a tetrahedron with an evaporating dish 8 at the bottom, a fan 9 at one end, an inclined deflector 11 at the other end, and an air outlet 7 at the lower end of the deflector 11, in which the evaporating dish Three PTC heating sheets 10 are attached to the bottom of 8 as heaters. According to the vaporization point of the test chemical substance, the number of the PTC heating sheet 10 is appropriately selected, so that the test chemical substance is completely volatilized within a predetermined time. In order to obtain a wider temperature adjustment range or a finer temperature interval, the PTC heating sheet 10 can be increased to 6 or more. In order to facilita...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a modified static inhaled toxicant exposure cabinet, comprising cabinet body (1), heater (10)and fan (9)set in the cabinet body (1), which is characterized in that the cabinet body (1)is a cylinder container; sample volatilizing box (6)is set under the cover plate (5); the volatilizing box (6)is a tetrahedron; evaporating dish (8)is set at the bottom and the heater (10)is set at the bottom of evaporating dish (8); the fan (9)is set at one end of volatilizing box (6)and oblique flow guide plate (11)is set at the other end; air outlet port (7)is set near the lower end of flow guide plate (11). The invention not only can improve concentration uniformity of test chemical in cabinet but also shorten testing time. It also saves electric energy and protects circumstance.

Description

Technical field: [0001] The invention relates to a diagnostic instrument, in particular to a poisoning cabinet, in particular a static inhalation poisoning cabinet, which is suitable for establishing inhaled poisoning animal models or studying the toxicology of inhaled poisoning by exogenous chemicals test. Background technique: [0002] There are two main ways to establish animal models of inhalation exposure, one is static inhalation exposure, and the other is dynamic inhalation exposure. Static inhalation poisoning is to place an experimental animal in a closed container with a certain volume, add a certain amount of volatile liquid test chemical or a certain volume of gaseous test chemical, and form the required content in this closed container. The air environment with the concentration of the test chemical poisons the animals. Dynamic inhalation of poison is to place the experimental animal in an air-flowing poison cabinet. The poison cabinet is equipped with a power system...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01L1/00A61B10/00
Inventor 姚朗
Owner SOUTHERN MEDICAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap