CN217211773U - Integrated forensic medical diatom inspection pretreatment system based on fume hood - Google Patents
Integrated forensic medical diatom inspection pretreatment system based on fume hood Download PDFInfo
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- CN217211773U CN217211773U CN202220657027.8U CN202220657027U CN217211773U CN 217211773 U CN217211773 U CN 217211773U CN 202220657027 U CN202220657027 U CN 202220657027U CN 217211773 U CN217211773 U CN 217211773U
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Abstract
The utility model discloses an integrated forensic medical diatom inspection pretreatment system based on a fume hood, which is provided with a fume hood and an equipment cabinet; the ventilation cabinet integrates a movable balance and reagent adding device, a digestion tank cleaning machine, a graphite digestion instrument, a vacuum filtration instrument, an experimental garbage can and wastewater treatment equipment, and sample pretreatment such as material taking, weighing, digestion, filtration and the like is convenient to carry out; a shielding door is arranged to isolate harmful gas and protect health; the top air suction mode is adopted, so that the harmful gas is prevented from overflowing, and the energy consumption is reduced; waste water treatment equipment is configured to meet the requirement of environmental protection; the equipment cabinet integrates a pure water instrument, a microwave digestion instrument, an infrared membrane dryer and the like, meets the application requirements of pure water supply, microwave digestion, membrane drying and the like, and reduces the loss of diatom in the membrane drying process; the utility model discloses the integrated level is high, possesses advantages such as safe, energy-conservation, simple and convenient, high efficiency, has good application prospect in the inspection of forensic diatom.
Description
Technical Field
The utility model relates to a forensic medicine examines technical field, specifically is an integrated form forensic medicine diatom before inspection processing system based on fume chamber.
Background
The analysis of the cause of death of the corpses in water is a great problem in forensic medicine, and the diatom test is considered as a reliable drowning diagnosis means, and is particularly considered as an optimal method for identifying the cause of death of rotten corpses in water. The pretreatment of the sample is a key link in the diatom inspection, and comprises the steps of material taking, digestion, suction filtration and the like, and equipment required by each step is integrated into a diatom inspection pretreatment system, so that the diatom inspection pretreatment system has the advantages of compact structure, small occupied space, convenience in operation and the like, and is generally adopted by forensic laboratories. However, the existing integrated diatom inspection pretreatment product is generally designed based on a pathological sampling table, and certain defects or shortcomings exist in practical application, and are highlighted as follows: (1) when the operations of material taking, weighing, digestion, suction filtration and the like are carried out, the head of an operator needs to extend into a pathological material taking table, so that the operator can inevitably contact harmful gas emitted by the decayed organ material to be tested and strong corrosive acid gas volatilized by concentrated nitric acid to damage health; (2) the ventilation mode of the pathological sampling table is generally upward air supply and downward air suction, the density of gas and nitric acid steam emitted by the putrefactive visceral organ sample is low, the gas and nitric acid steam are diffused upwards, turbulence is easily formed when the gas and nitric acid steam meet downward wind, the safety of a laboratory is affected, and in order to avoid the problem, the wind volume and the speed of the downward wind need to be increased, so that the energy consumption is high; (3) when the filter membrane is dried on a pathological sampling table, diatoms which are not firmly adhered to the filter membrane are easily blown off by descending wind, so that the recovery rate is reduced.
Accordingly, innovative designs are needed to overcome the above-described deficiencies or inadequacies.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an integrated form legal medical science diatom before inspection processing system based on fume chamber to solve the problem that above-mentioned background art exists in harmful gas takes precautions against, energy consumption, diatom rate of recovery aspect.
In order to achieve the above object, the utility model provides a following technical scheme: an integrated forensic medicine diatom inspection pretreatment system based on a fume hood comprises two fume hoods and an equipment cabinet; the first fume hood is used for configuring a balance, a reagent adding device, a first experiment garbage can and a microwave digestion tank cleaning machine; the second fume hood is used for configuring a graphite digestion instrument, a vacuum filtration instrument, a second experiment garbage can and wastewater treatment equipment; the equipment cabinet is used for configuring a water purifier, a microwave digestion instrument, an infrared film dryer and a tool consumable cabinet.
Preferably, the equipment cabinet, the first fume hood and the second fume hood are sequentially arranged from left to right.
Preferably, the fume chamber is provided with a shielding door for isolating harmful gas environment and protecting health of operators.
Preferably, the fume chamber adopts the top mode of induced drafting, can effectively inhale and discharge harmful gas.
The balance is arranged at the position close to the back plate in the upper layer of the first ventilating cabinet, the reagent adding device is arranged on the left side of the balance, and the first experiment garbage can is arranged on the left side of the reagent adding device.
Preferably, the balance and the bottom of the reagent adding device are provided with pulleys and locking devices, and the balance and the reagent adding device can be moved to proper positions according to operation requirements.
Spacing post, install in first experiment garbage bin bottom surface below, bottom surface nestification has first magnet to paste in the first experiment garbage bin, and the bottom below of bucket is provided with the second magnet.
Preferably, first experiment garbage bin constitutes spacing nested structure through spacing post and fume chamber, and the fume chamber passes through the magnetic paste and firmly laminates with the experiment garbage bin, prevents that first experiment garbage bin from empting appearing.
The microwave digestion tank cleaning machine is nested in the lower layer of the first fume hood.
The vacuum filtration appearance sets up in second fume chamber upper strata, and the appearance setting is cleared up on the vacuum filtration appearance right side to the graphite, and the second experiment garbage bin sets up in vacuum filtration appearance left side, and waste water treatment equipment nestification is in second fume chamber lower strata.
Preferably, a direct-discharge vacuum suction filtration instrument is adopted, a suction filtration bottle is not needed, filtrate is directly discharged into wastewater treatment equipment, the operation is simplified, and the efficiency is improved.
Preferably, the tool consumable cabinet is arranged on the upper layer of the equipment cabinet, tool consumables required by an experiment are arranged in the tool consumable cabinet, the microwave digestion instrument is arranged in the middle layer of the equipment cabinet, and the infrared film dryer is arranged on the left side of the microwave digestion instrument in the same level; the water purifier is nested in the lower layer of the equipment cabinet.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the integrated forensic medical diatom inspection pretreatment system based on the fume hood is provided with a shielding door, so that a breathing area of an operator is physically isolated from harmful gas (including malodorous gas and strong corrosive concentrated nitric acid steam released by decayed visceral organs) in the fume hood, and the health of the operator is protected; because the harmful gas has low density and is diffused upwards, the top air suction mode is adopted, so that the harmful gas can be effectively sucked and discharged, the overflow is prevented, and the energy consumption is reduced;
2. the integrated forensics diatom inspection pretreatment system based on the fume hood is provided with the movable balance and reagent adding device, so that an operator can conveniently operate under the condition that the head of the operator does not extend into the fume hood; the graphite digestion instrument is arranged, so that large-volume water samples can be treated in batches, and the defect that the microwave digestion instrument can only digest small-volume water samples is overcome; the vacuum suction filtration instrument is arranged, a direct-discharge design is adopted, a suction filtration bottle is not needed, filtrate is directly discharged into wastewater treatment equipment, the operation is simplified, and the efficiency is improved; the infrared film dryer is arranged outside the fume hood, the film can be dried quickly under the condition of no interference, and the problem that diatoms on the film are blown off by wind is effectively solved.
Drawings
FIG. 1 is a schematic view of the three-dimensional structure of the equipment cabinet of the present invention;
FIG. 2 is a schematic view of a semi-sectional three-dimensional structure of the equipment cabinet of the present invention;
FIG. 3 is a schematic view of the partial sectional three-dimensional structure of the equipment cabinet of the present invention;
fig. 4 is a schematic view of the partially cut-away three-dimensional structure of the fume hood of the present invention;
fig. 5 is a schematic diagram of the explosion three-dimensional structure of the present invention.
The various reference numbers in the figures are summarized: 1. an equipment cabinet; 2. a tool consumable cabinet; 3. a water purifier; 4. a microwave digestion instrument; 5. an infrared film dryer; 6. a consumable material; 7. a fume hood; 8. a movable balance; 9. a mobile reagent addition device; 10. a first experimental garbage can; 11. a limiting post; 12. a first magnetic paste; 13. a second magnetic paste; 14. a microwave digestion tank cleaning machine; 15. a vacuum suction filtration instrument; 16. a graphite digestion instrument; 17. a second experimental garbage can; 18. a wastewater treatment facility; 19. a shield door.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: an integrated forensic medicine diatom inspection pretreatment system based on a fume hood comprises two fume hoods 7 and an equipment cabinet 1; the first fume hood 7 is used for configuring a balance, a reagent adding device, a first experiment garbage can 10 and a microwave digestion tank cleaning machine 14; the second fume hood 7 is used for configuring a graphite digestion instrument 16, a vacuum filtration instrument 15, a second experiment garbage can 17 and wastewater treatment equipment 18; the equipment cabinet 1 is used for configuring a water purifier 3, a microwave digestion instrument 4, an infrared film dryer 5 and a tool consumable cabinet 2.
The utility model discloses based on the fume chamber design, with the integrated integration of fume chamber and other diatom before inspection treatment facility, can be equipped with central control system, and it is right through control panel equipment is controlled.
Tool consumable cabinet 2 installs in 1 upper strata of equipment cabinet, and the built-in required tool consumable of experiment that has clears up 4 settings in 1 intermediate layer of equipment cabinet, and infrared membrane drying-machine 5 sets up in the left side of clearing up 4 at the microwave with the level, is provided with embedded water purifier 3 in 1 lower floor of equipment cabinet.
The fume hood 7 is arranged on the right side of the equipment cabinet 1, a balance 8 is arranged on the upper layer of the fume hood 7 close to the back plate, a reagent adding device 9 is arranged on the left side of the balance 8, and a first experiment garbage can 10 is arranged on the left side of the outer surface of the reagent adding device 9.
Spacing post 11 installs in first experiment garbage bin 10 bottom surface below, and the interior bottom surface nestification of first experiment garbage bin 10 has first magnet 12, and the bottom below of bucket is provided with second magnet 13, sets up embedded microwave in the lower floor of fume chamber 7 simultaneously and clears up a jar cleaning machine 14.
First experiment garbage bin 10 constitutes spacing nested structure through spacing post 11 and fume chamber 7, and fume chamber 7 constitutes magnetic laminated structure through second magnet 13 and first magnet 12 and first experiment garbage bin 10.
The method comprises the following steps: as shown in fig. 1-5, first, the ventilation system of the hood 7 is started, the screen door 19 is pushed and pulled up and down to a proper safe position, and the operation is performed according to the pretreatment specification in GA/T1662-2019: (1) laying 1-2 layers of disposable pad without diatom on the table surface in the cabinet, placing viscera tissues (lung, liver, kidney, marrow, etc.) on the pad, weighing appropriate amount of sample with a movable balance 8, placing in a plastic test tube, and absorbing appropriate amount of water sample with a pipette and placing in the plastic test tube; (2) adding required amounts of nitric acid and hydrogen peroxide solution to a plastic test tube containing a sample by using a movable reagent adding device 9; (3) digesting the organ tissues and the water sample after adding the acid by using a microwave digestion tank cleaning machine 14 and a graphite digestion instrument 16 respectively; (4) carrying out suction filtration on digestion liquid of the visceral organs and the water sample by using a vacuum suction filtration instrument 15, and discharging filtrate after treatment in a wastewater treatment device 18; (5) drying the filter membrane by an infrared membrane dryer 5; (6) the digestion tank is cleaned by a microwave digestion tank cleaning machine 14 for standby. The experimental water required for the above process was prepared by a pure water meter 3.
The utility model relates to a GA/T1662-2019 refers to national public safety industry standard "court science diatom inspection technical specification microwave digestion-vacuum filtration-microscopy", compares with prior art, the utility model has the advantages of safety, energy-conservation, simple and convenient, high efficiency, the practicality is stronger, is favorable to GA/T1662-2019's popularization and application.
What is not described in detail in this specification is of the prior art well known to those skilled in the art, such as the pure water apparatus 3, the microwave digestion apparatus 4, the graphite digestion apparatus 16, and the like.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An integrated forensic medicine diatom inspection pretreatment system based on a fume hood is characterized by comprising two fume hoods and an equipment cabinet; the first fume hood is used for configuring a balance, a reagent adding device, a first experiment garbage can and a microwave digestion tank cleaning machine; the second fume hood is used for configuring a graphite digestion instrument, a vacuum filtration instrument, a second experiment garbage can and wastewater treatment equipment; the equipment cabinet is used for configuring a water purifier, a microwave digestion instrument, an infrared film dryer and a tool consumable cabinet.
2. The integrated forensic medicine diatom inspection pre-processing system based on a fume hood of claim 1 wherein:
the equipment cabinet, the first fume hood and the second fume hood are sequentially arranged from left to right;
the ventilation cabinet is provided with a shielding door for isolating harmful gas environment and protecting the health of operators;
the ventilation cabinet adopts a top air suction mode to suck and exhaust harmful gas;
the balance is arranged in the upper layer of the first ventilating cabinet and close to the back plate, the reagent adding device is arranged on the left side of the balance, and the first experiment garbage can is arranged on the left side of the reagent adding device;
the limiting column is arranged below the bottom surface of the first experimental garbage can, a first magnetic sticker is nested on the inner bottom surface of the first experimental garbage can, and a second magnetic sticker is arranged below the bottom of the first experimental garbage can;
a microwave digestion tank cleaning machine is arranged in the lower layer of the first fume hood;
the vacuum filtration instrument is arranged in the upper layer of the second fume hood, the graphite digestion instrument is arranged on the right side of the vacuum filtration instrument, the second experimental garbage can is arranged on the left side of the vacuum filtration instrument, and the wastewater treatment equipment is nested in the lower layer of the second fume hood;
the tool consumable cabinet is arranged on the upper layer of the equipment cabinet, tool consumables required by an experiment are arranged in the tool consumable cabinet, the microwave digestion instrument is arranged in the middle layer of the equipment cabinet, and the infrared film dryer is arranged on the left side of the microwave digestion instrument in the same level; the pure water instrument is arranged in the lower layer of the equipment cabinet.
3. The integrated forensic medicine diatom inspection pre-processing system based on a fume hood of claim 1 wherein: the balance and the reagent adding device are respectively provided with a pulley and a locking device at the bottom, and are used for moving to a proper position according to operation requirements.
4. The integrated forensic medicine diatom inspection pre-processing system based on a fume hood of claim 1 wherein: first experiment garbage bin constitutes spacing nested structure through spacing post and fume chamber, and the fume chamber passes through the magnetic paste and firmly laminates with the experiment garbage bin to prevent that first experiment garbage bin from empting appearing.
5. The integrated forensic medicine diatom inspection pre-processing system based on a fume hood of claim 1 wherein: the vacuum suction filtration instrument adopts a direct discharge type, a suction filtration bottle is not needed, and filtrate is directly discharged into waste water treatment equipment, so that the operation is simplified, and the efficiency is improved.
6. The integrated forensic medicine diatom inspection pre-processing system based on a fume hood of claim 1 wherein: the water purifier is arranged on the lower layer of the equipment cabinet in an embedded mode.
7. The integrated forensic medicine diatom inspection pre-processing system based on a fume hood of claim 1 wherein: jar cleaning machine is cleared up to microwave, waste water treatment equipment all sets up respectively in two fume chamber lower floors with the embedding mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220657027.8U CN217211773U (en) | 2022-03-25 | 2022-03-25 | Integrated forensic medical diatom inspection pretreatment system based on fume hood |
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| CN202220657027.8U CN217211773U (en) | 2022-03-25 | 2022-03-25 | Integrated forensic medical diatom inspection pretreatment system based on fume hood |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990297A (en) * | 2023-09-27 | 2023-11-03 | 佳木斯大学 | Forensic science diatom check-out set based on filter membrane |
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- 2022-03-25 CN CN202220657027.8U patent/CN217211773U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990297A (en) * | 2023-09-27 | 2023-11-03 | 佳木斯大学 | Forensic science diatom check-out set based on filter membrane |
| CN116990297B (en) * | 2023-09-27 | 2024-01-02 | 佳木斯大学 | Forensic science diatom check-out set based on filter membrane |
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