Cleaning agent for forensic dissection room

Abstract

The invention provides a cleaning agent for a forensic dissection room, which is prepared from the following raw materials in parts by weight: 5-8 parts of tetrasodium hydroxyethylidene diphosphonate, 10-15 parts of a nonionic surfactant, 3-5 parts of a wax removal agent, 1-1.5 parts of citric acid, 1-3 parts of lipase, 1-3 parts of protease, 1-2 parts of amylase, 0.01-0.1 part of a preservative and 1-5 parts of a quaternary ammonium salt disinfectant. 0.1-1 part of zinc diricinoleate and 1-10 parts of a dispersing agent. According to the cleaning agent for the forensic dissection room, various stains on the surface of an object can be effectively removed through combination of all the components, pathogenic bacteria on the surface of the object can be effectively removed, gases such as corpse odor, hydrogen sulfide and strong acid rancidity harmful to a human body can be effectively removed, and the cleaning agent is used for removing various animal blood stains, decayed fat, decayed tissue residues and the like.

Description

Technical Field

[0001] The invention belongs to the field of forensic medicine, and in particular relates to a cleaning agent used in a forensic dissection room. Background Art

[0002] Medical instruments are often contaminated with blood and other body matter and potentially infectious microorganisms after use. Before being reused for subsequent procedures, these instruments must be cleaned and disinfected, such as pre-cleaning, cleaning, rinsing and drying. The pre-cleaning phase is used to dissolve the blood on the instruments and can be carried out with a washing solution containing detergents and possibly enzymes. The cleaning step is carried out with a washing solution containing detergents and enzyme preparations. The time, water temperature and detergent selection and concentration of the cleaning are matched according to requirements. Rinsing is used to remove dirt dissolved in the cleaning phase and residual detergent.

[0003] When blood or other substances are dried on the apparatus, the process of cleaning and disinfection becomes complicated. Body fluids such as blood, lipids and joint fluids from joints are attached to the objects used during the procedure. When these liquids are dry, the adhesion becomes stronger and the liquid becomes more difficult to dissolve using common cleaning methods. Finally, the adhesion of dirt becomes too strong so that conventional detergents cannot destroy it and the apparatus keeps the contaminated state after cleaning. When body fluids are not reacted by other chemical substances such as enzymes, the chemical structure of these detergents cannot make them react with body fluids. For example, protease decomposes these body fluids by chemical reaction, and this reaction also decomposes the bonding bond of body fluids and the objects to which they are attached. When decomposing in this way, body fluids become more soluble in the surfactant and can be washed away then.

[0004] The cleaning agents and methods currently used have the following drawbacks:

[0005] 1. When it is used for manual cleaning of instruments, when these objects are immersed in the cleaning solution, due to the foaming or turbidity of the cleaning solution, the cleaning staff cannot see the objects being cleaned and their contamination, which may cause damage to the human body;

[0006] 2. There are a lot of materials, experimental reagents, specimens, and test materials in the forensic laboratory that have odors and are irritating to the skin, sense organs, and olfactory senses. These can cause direct or indirect harm to the test personnel. If they are not treated and directly discharged outdoors, they will indirectly pollute the environment for the second time.

[0007] 3. The autopsy room is a closed space. Although it has air intake and negative pressure exhaust equipment, it cannot meet the requirements for special autopsy of corpses (highly corrupt, with infectious viruses, corrupt corpse wax) and other autopsy inspections. In particular, the stench of corrupt corpses is often accompanied by harmful viruses that pollute the autopsy room and also have a great pollution to the air discharged outside.

[0008] 4. In some scenes where there are no autopsy rooms, forensic doctors need to operate on the spot. When collecting materials on the scene, the stench of decayed corpses requires multiple layers of protection, but it is still difficult to eliminate, and it pollutes the surrounding environment, and there may also be residual viruses;

[0009] 5. Most of the equipment and instruments in the dissection room are made of stainless steel. The dissection table, instruments, floor, wall, and space instruments must be disinfected, cleaned, and deodorized after dissection, and viruses and harmful bacteria must be disinfected and their growth inhibited;

[0010] 6. There are many drainage grooves around the dissection table. If they are not cleaned in time or the cleaning and disinfection are not in place, it is easy for rotten corpse tissue and blood to remain, forming invisible pollution to the forensic working environment and more likely to breed viruses. Summary of the invention

[0011] In view of this, the present invention aims to overcome the defects in the prior art and proposes a cleaning agent for a forensic autopsy room.

[0012] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0013] A cleaning agent for a forensic autopsy room, the cleaning agent is made of the following raw materials in parts by weight:

[0014]

[0015]

[0016] Preferably, the cleaning agent is made of the following raw materials in parts by weight:

[0017]

[0018] Furthermore, the nonionic surfactant is at least one of alkylphenol polyether, fatty acid methyl ester ethoxylate, isomeric tridecanol ether or secondary alcohol polyether; the enzyme activity of the protease is greater than 100,000 U / g; the enzyme activity of the amylase is greater than 100,000 U / g; and the enzyme activity of the lipase is greater than 100,000 U / g.

[0019] Furthermore, the preservative is at least one of kason, benzyl alcohol or sodium hydroxymethylglycinate.

[0020] Furthermore, the dispersant includes a first dispersant and a second dispersant; the first dispersant is a metal ion solution; the second dispersant is β-cyclodextrin; the liquid-to-solid ratio of the first dispersant to the second dispersant is (1-10) ml:1g; the metal ion concentration of the first dispersant is 1-100 mol / l.

[0021] When cleaning the instruments in the dissection room, since most of them are made of stainless steel, strong acid cleaning materials are prohibited.

[0022] The method for using the cleaning agent for a forensic autopsy room comprises the following steps:

[0023] (1) mixing tetrasodium hydroxyethylidene diphosphonate, a nonionic surfactant, a wax remover, citric acid, lipase, protease, amylase, a preservative, a quaternary ammonium salt disinfectant, zinc ricinoleate and a first dispersant to obtain a pre-cleaning solution;

[0024] (2) dissolving the second dispersant in water to obtain a second dispersant aqueous solution, then spraying the second dispersant aqueous solution evenly on the dispersion material, and drying the dispersion material;

[0025] (3) The pre-cleaning liquid is introduced into the dispersed material through a connecting guide.

[0026] Furthermore, the dispersion material in step (2) is obtained by stacking multiple layers of gauze; and the connecting guide in step (3) is cotton thread.

[0027] A cleaning device for a forensic autopsy room comprises a shell, wherein an upper cover and a lower cover are arranged on the shell, wherein the upper cover is located at the top of the shell, and the lower cover is located at the bottom of the shell;

[0028] A partition plate is provided inside the shell, a connecting hole is provided on the partition plate, a storage box is provided on the partition plate, and a dispersion hole corresponding to the connecting hole is provided at the bottom of the storage box;

[0029] A bracket is arranged in the shell, the bracket is located below the partition plate, a middle channel is arranged on the bracket, and the connecting hole and the dispersion hole are both located above the middle channel;

[0030] A brush is arranged in the shell, the brush is installed on the bracket, and a dispersion material is arranged on the brush, and the dispersion material is located below the middle channel;

[0031] A connecting guide is arranged in the shell, and one end of the connecting guide passes through the storage box, the connecting hole and the middle channel in sequence to be connected with the dispersed material.

[0032] Furthermore, a fixing frame is provided on the partition plate, and the storage box is placed on the partition plate through the fixing frame; the storage box is detachably connected to the fixing frame; a top cover is provided on the top of the storage box, and the top cover is detachably connected to the storage box; the cleaning device is also provided with a first pull plate and a second pull plate, the first pull plate and the second pull plate are arranged opposite to each other, one end of the first pull plate passes through the shell and the bracket and is arranged in the middle channel, and one end of the second pull plate passes through the shell and the bracket and is arranged in the middle channel, and the first pull plate and the second pull plate are both provided with rubber rings, and the rubber rings are adjacent to the shell. The end of the first pull plate is provided with a groove that matches the end of the second pull plate. The end of the second pull plate can be embedded in the groove of the first pull plate, and can be fixed in position.

[0033] Furthermore, the brush is installed on the bracket via a rotating shaft, and the bracket and the rotating shaft are detachably connected; the bracket is rotatably connected to the rotating shaft; and the rotating shaft and the brush are detachably connected.

[0034] Furthermore, a limiting member is provided on the connecting hole, and the connecting guide is limited by the limiting member.

[0035] The connecting guide is a cotton thread. The cotton thread is passed through the limiting member and then tied into a knot, and the knot limits the cotton thread on the central hole of the limiting member.

[0036] The material of the dispersion material is gauze, and the dispersion material is obtained by stacking multiple layers of gauze.

[0037] Compared with the prior art, the present invention has the following advantages:

[0038] The cleaning agent for forensic autopsy room described in the present invention can effectively remove various stains on the surface of objects through the combination of various components, effectively remove pathogenic bacteria on the surface of objects, effectively remove gases harmful to the human body such as corpse odor, hydrogen sulfide, strong acid odor, etc., and is used to remove various animal blood stains, corrupt fat and corrupt tissue residues, etc.

[0039] The cleaning agent for forensic autopsy room of the present invention adopts two dispersants at the same time. The combination of the two dispersants enables the cleaning agent to be quickly, evenly and continuously introduced into the dispersed material, without manual addition of cleaning agent, which facilitates continuous cleaning of the cleaning device and greatly improves the cleaning efficiency.

[0040] The cleaning agent for forensic autopsy room of the present invention has the effects of cleaning, deodorizing, disinfecting, sterilizing and inhibiting bacteria for the residues, dirty blood, corrupt tissues and corpse wax after autopsy of corrupt corpses; it has the effects of removing and alleviating the secondary pollution of harmful gases, corpse odor and harmful bacteria in the air produced by autopsy; it is easy to clean, has no residue and has long-lasting antibacterial effect.

[0041] The cleaning device for a forensic autopsy room described in the present invention is provided with a connecting guide and a dispersion material, the connecting guide passes through a storage box and is connected to the dispersion material, the dispersion material contains a second dispersant, the detergent contains a first dispersant, the connecting guide introduces the detergent into the dispersion material, and the beta-cyclodextrin adsorbs metal ions so that the detergent in the storage box quickly and evenly enters the dispersion material, which is convenient for cleaning with a brush and improves the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of a cleaning device for a forensic autopsy room according to an embodiment of the present invention before use;

[0043] Figure 2 This is a schematic diagram of the use of the cleaning device for a forensic autopsy room according to an embodiment of the present invention.

[0044] Description of reference numerals:

[0045] 1. Shell; 11. Upper cover; 111. Handle; 12. Lower cover; 2. Partition plate; 21. Connecting hole; 22. Limiting member; 3. Storage box; 31. Fixing frame; 32. Top cover; 4. Connecting guide; 5. Bracket; 51. Center channel; 6. First pull plate; 7. Second pull plate; 8. Rubber ring; 9. Dispersing material; 10. Rotating shaft; 101. Brush. DETAILED DESCRIPTION

[0046] Unless otherwise defined, the technical terms used in the following examples have the same meanings as those generally understood by those skilled in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods, unless otherwise specified, are all conventional methods.

[0047] In the embodiments of the present invention, tetrasodium hydroxyethylidene diphosphonate, alkylphenol polyoxyethylene, wax remover, citric acid, lipase, protease, amylase, kasone, benzalkonium bromide, zinc ricinoleate, sodium chloride and β-cyclodextrin are all commercially available products.

[0048] The present invention will be described in detail below with reference to the embodiments.

[0049] Example 1

[0050] A cleaning agent for a forensic autopsy room is prepared from the following raw materials in parts by weight: 6g of tetrasodium hydroxyethylidene diphosphonate, 12g of alkylphenol polyoxyethylene, 3g of a wax remover, 1g of citric acid, 1g of lipase, 1g of protease, 1g of amylase, 0.02g of kasone, 1g of benzalkonium bromide, 0.2g of zinc ricinoleate, 10ml of a 5% sodium chloride solution, and 2g of beta-cyclodextrin.

[0051] The method for using the cleaning agent for a forensic autopsy room comprises the following steps:

[0052] (1) dissolving tetrasodium hydroxyethylidene diphosphonate, alkylphenol polyoxyethylene, wax remover, citric acid, lipase, protease, amylase, kasone, benzalkonium bromide, zinc ricinoleate and sodium chloride solution in 100 ml of distilled water, and mixing them evenly to obtain a pre-cleaning solution;

[0053] (2) dissolving β-cyclodextrin in water to obtain a β-cyclodextrin aqueous solution, then spraying the aqueous solution evenly on the dispersion material, and drying the dispersion material;

[0054] (3) The pre-cleaning liquid is introduced into the dispersed material through a connecting guide.

[0055] A cleaning device for a forensic autopsy room comprises a shell, wherein an upper cover and a lower cover are arranged on the shell, wherein the upper cover is located at the top of the shell, and the lower cover is located at the bottom of the shell; a partition is arranged inside the shell, wherein a connecting hole is arranged on the partition, and a storage box is arranged on the partition, and a dispersion hole corresponding to the connecting hole is arranged at the bottom of the storage box; a bracket is arranged inside the shell, wherein the bracket is located below the partition, and an intermediate channel is arranged on the bracket, wherein the connecting hole and the dispersion hole are both located above the intermediate channel; a brush is arranged inside the shell, wherein the brush is mounted on the bracket, and dispersion material is arranged on the brush, wherein the dispersion material is located below the intermediate channel; a connecting guide is arranged inside the shell, wherein one end of the connecting guide passes through the storage box, the connecting hole, and the intermediate channel in sequence and is connected to the dispersion material. A fixing frame is arranged on the partition, and the storage box is placed on the partition through the fixing frame; the storage box is detachably connected to the fixing frame; a top cover is arranged on the top of the storage box, and the top cover is detachably connected to the storage box. The cleaning device is also provided with a first pull plate and a second pull plate. The first pull plate and the second pull plate are arranged opposite to each other. One end of the first pull plate passes through the shell and the bracket and is arranged in the intermediate channel. One end of the second pull plate passes through the shell and the bracket and is arranged in the intermediate channel. The first pull plate and the second pull plate are both provided with rubber rings, and the rubber rings are adjacent to the shell. The end of the first pull plate is provided with a groove that matches the end of the second pull plate. The end of the second pull plate can be embedded in the groove of the first pull plate, and can be fixed in position. The brush is installed on the bracket through a rotating shaft, and the bracket is detachably connected to the rotating shaft; the bracket is rotatably connected to the rotating shaft; the rotating shaft and the brush are detachably connected. The dispersion material is detachably connected to the bracket.

[0056] The connecting hole is provided with a limiter, and the connecting guide is limited by the limiter. The connecting guide is a cotton thread. The cotton thread is passed through the limiter and then tied into a knot, and the knot limits the cotton thread on the central hole of the limiter. The material of the dispersion material is gauze, and the dispersion material is obtained by stacking 10 layers of gauze.

[0057] The upper cover body and the lower cover body are respectively connected to the shell body by threads, and a through hole matching with the limiter is provided at the bottom of the storage box. Before use, the first pull plate and the second pull plate are respectively pulled outward, and the position can be fixed by the rubber ring, and then the upper cover body is unscrewed, the top cover on the storage box is opened, and the detergent is poured in. One end of the connecting guide is left with sufficient length and then tied, and the other end is put into the detergent, passed through the limiter until it contacts with the dispersed material, and the detergent in the storage box is introduced into the dispersed material through the connecting guide, and the knotted part blocks the through hole of the limiter, so that the limit can be performed, and then the connecting guide is The tail end of the guide piece is placed outside the storage box, the top cover is connected to the storage box and the connecting guide piece is fixed at the same time, and then the lower cover body is unscrewed. The brush is stained with the cleaning agent on the dispersed material, and the brush is brought into contact with the part to be cleaned for cleaning; after cleaning, the brush and the rotating shaft are removed from the bracket, the dispersed material is taken out, and then the upper cover body and the top cover are opened, the cleaning liquid is poured out, the connecting guide piece is taken out, and then new dispersed material is replaced, the brush and the rotating shaft are installed, and the first pull plate and the second pull plate are pushed inward respectively until the end of the second pull plate is embedded in the groove of the first pull plate, and then the top cover, the upper cover body, and the lower cover body are covered to complete.

[0058] Example 2

[0059] The difference from Example 1 is that the first dispersant is a 5% sodium tripolyphosphate solution.

[0060] Example 3

[0061] The difference from Example 1 is that the first dispersant is a 5% magnesium chloride solution.

[0062] Example 4

[0063] The difference from Example 1 is: 10 ml of 5% sodium chloride solution and 5 g of β-cyclodextrin.

[0064] Comparative Example 1

[0065] The difference from Example 1 is that the first dispersant is polyethylene glycol 400.

[0066] Comparative Example 2

[0067] The difference from Example 1 is that the first dispersant is not added.

[0068] Comparative Example 3

[0069] The difference from Example 1 is that no second dispersant is added.

[0070] Comparative Example 4

[0071] The difference from Example 1 is that a conventional cleaning device is used.

[0072] Comparison example

[0073] Use commercially available cleaning agents and cleaning equipment.

[0074] 1. Antibacterial test

[0075] Select several smooth-surfaced utensils and evenly apply a solution with a total bacterial concentration of 10 8 -10 9 CFU / cm 2 The solution was added, and 10 minutes later, the cleaning agents and cleaning devices obtained in Examples 1-3, Comparative Examples 1-4 and the reference example were used to clean the surface of the utensil, with 3 balances in each group. After 10 minutes, the total bacterial concentration of the utensil was detected, and the results are shown in Table 1.

[0076] Table 1 Antibacterial data

[0077]

[0078]

[0079] As can be seen from Table 1, the cleaning agents prepared in Examples 1-4 have significant effects on cleaning utensils when used together with the cleaning device described in the present invention, and the effect of using the first dispersant as an inorganic metal ion solution is particularly significant; Comparative Examples 1-3 do not use the combined dispersant described in the present invention, and the effects are not ideal. Comparative Example 4 uses conventional cleaning agents and cleaning devices, and the effect is worse than that of Comparative Examples 1-3.

[0080] 2. Blood cleansing efficacy experiment

[0081] The stainless steel sampling tube was cleaned and degreased for preparation and then weighed. 0.2 g of reactivated sheep blood was placed on the sampling tube and spread on the surface. Dry in a drying oven at 35° C. for 1 hour. After cooling to room temperature, the sampling tube was weighed again.

[0082] 500 ml of each of the cleaning agents obtained in Examples 1-3, Comparative Examples 1-4 and Control Examples were added to a beaker. The test sample tube was immersed therein and kept for 10 minutes without stirring. After the contact time, the sample tube was taken out and immersed in clean water for rinsing. The test sample tube was then dried overnight at ambient temperature.

[0083] The test was evaluated visually and by weight. The weight of the sampling tube with dried blood minus the weight of the clean sampling tube equals the blood load; the weight of the cleaned sampling tube minus the weight of the cleaned sampling tube equals the blood load after cleaning, i.e. the residual blood load. Using this method, the cleaning efficacy can be calculated. The results in the form of cleaning efficacy are given as a percentage. The test was repeated at least three times and the results are shown in Table 2.

[0084] Table 2 Blood test results

[0085]

[0086]

[0087] As shown in Table 2, the cleaning agents prepared in Examples 1-4 all have significant effects in cleaning blood. Most of the comparative examples 1-3 use the formula of the present invention for cleaning and also have a heterosexual effect, while the control examples use conventional cleaning agents and the effect is not very obvious.

[0088] When the cleaning agent is used daily, after being diluted 50 times, it basically achieves the effect of cleaning liquids on the market, has a clearing effect on general corpse odors, and has a disinfecting effect on harmful bacteria (Legionella, Escherichia coli, Streptococcus, Tuberculosis, Hepatitis A and Hepatitis B viruses);

[0089] After being diluted 30 times, it has a significant masking and decomposition effect on corpse odor, and has a significant cleaning effect. It has a certain decomposition and removal effect on some corrupted fat tissues and waxed fats, and has a good killing effect on (Legionella, Escherichia coli, Streptococcus, Tuberculosis, Hepatitis A and Hepatitis B viruses, etc.);

[0090] When working in the field, the highly decomposed corpse odor needs to be diluted 10 times and then sprayed on site, with an interval of about 15 minutes, which has a significant effect in eliminating the highly decomposed corpse odor.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning agent for a forensic autopsy room, characterized in that: The cleaning agent is made of the following raw materials in parts by weight:

2. The cleaning agent for forensic autopsy room according to claim 1, characterized in that: The nonionic surfactant is at least one of alkylphenol polyether, fatty acid methyl ester ethoxylate, isomeric tridecanol ether or secondary alcohol polyether; the enzyme activity of the protease is greater than 100,000 U / g; the enzyme activity of the amylase is greater than 100,000 U / g; and the enzyme activity of the lipase is greater than 100,000 U / g.

3. The cleaning agent for forensic autopsy room according to claim 1, characterized in that: The preservative is at least one of kason, benzyl alcohol or sodium hydroxymethylglycinate.

4. The cleaning agent for forensic autopsy room according to claim 1, characterized in that: The dispersant includes a first dispersant and a second dispersant; the first dispersant is a metal ion solution; the second dispersant is β-cyclodextrin; the solid-liquid ratio of the first dispersant to the second dispersant is (1-10) ml:1g; the metal ion concentration of the first dispersant is 1-100 mol / l.

5. The method for using the cleaning agent for a forensic autopsy room according to any one of claims 1 to 4, characterized in that: The steps include: (1) mixing tetrasodium hydroxyethylidene diphosphonate, a nonionic surfactant, a wax remover, citric acid, lipase, protease, amylase, a preservative, a quaternary ammonium salt disinfectant, zinc ricinoleate and a first dispersant to obtain a pre-cleaning solution; (2) dissolving the second dispersant in water to obtain a second dispersant aqueous solution, then spraying the second dispersant aqueous solution evenly on the dispersion material, and drying the dispersion material; (3) The pre-cleaning liquid is introduced into the dispersed material through a connecting guide.

6. The method for using the cleaning agent for a forensic autopsy room according to claim 5, characterized in that: The dispersion material in step (2) is obtained by stacking multiple layers of gauze; and the connecting guide in step (3) is cotton thread.

7. A cleaning device for a forensic autopsy room, characterized in that: It comprises a shell, wherein an upper cover and a lower cover are arranged on the shell, wherein the upper cover is located at the top of the shell, and the lower cover is located at the bottom of the shell; A partition plate is provided inside the shell, a connecting hole is provided on the partition plate, a storage box is provided on the partition plate, and a dispersion hole corresponding to the connecting hole is provided at the bottom of the storage box; A bracket is arranged in the shell, the bracket is located below the partition plate, a middle channel is arranged on the bracket, and the connecting hole and the dispersion hole are both located above the middle channel; A brush is arranged in the shell, the brush is installed on the bracket, and a dispersion material is arranged on the brush, and the dispersion material is located below the middle channel; A connecting guide is arranged in the shell, and one end of the connecting guide passes through the storage box, the connecting hole and the middle channel in sequence to be connected with the dispersed material.

8. The cleaning device for a forensic autopsy room according to claim 7, characterized in that: A fixing frame is provided on the partition plate, and the storage box is placed on the partition plate through the fixing frame; the storage box is detachably connected to the fixing frame; a top cover is provided on the top of the storage box, and the top cover is detachably connected to the storage box; the cleaning device is also provided with a first pull plate and a second pull plate, the first pull plate and the second pull plate are arranged opposite to each other, one end of the first pull plate passes through the shell and the bracket and is arranged in the middle channel, one end of the second pull plate passes through the shell and the bracket and is arranged in the middle channel, and both the first pull plate and the second pull plate are provided with rubber rings, and the rubber rings are adjacent to the shell.

9. The cleaning device for a forensic autopsy room according to claim 7, characterized in that: The brush is installed on the bracket via a rotating shaft, and the bracket and the rotating shaft are detachably connected; the bracket is rotationally connected to the rotating shaft; and the rotating shaft and the brush are detachably connected.

10. The cleaning device for a forensic autopsy room according to claim 7, characterized in that: A limiting piece is arranged on the communicating hole, and the connecting guide is limited by the limiting piece.

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