69 results about "Specimen preservation" patented technology

The invention relates to an efficient and environment-friendly remains preservative free of formaldehyde and application thereof. The remains preservative mainly comprises, by volume, 0.5-10% of phenoxyethanol, 0.2-1.5% of isothiazolinone, 3-15% of organic acid, 5-20% of propylene glycol, 5-30% of glycerol, 20-75% of ethanol and 5-35% of distilled water, and, by weight, 1-10% of hexamethylenetetramine and 0-2% of ethylenediamine tetraacetic acid disodium salt. The preservative can be poured through an aorta and an aortic arch and injected through the abdominal cavity, the thoracic cavity, the pharyngeal cavity and the cranial cavity so as to carry out antiseptic preservation, disinfection and smell removal to remains. Quantification sterilization experiments, animal experiments and funeral home field experiments prove that the remains preservative is efficient in antibacterial property, quick in action speed, low in toxicity and suitable for short-term or long-term remains antisepsis or specimen preservation of funeral homes and medical colleges at home and abroad.

The invention relates to the biotomy field and in particular relates to a novel specimen conservation solution. The conservation solution is prepared from the following components: 1-5g of potassium sorbate, 0.1-1g of nano-silver, 100-300ml of ethyl alcohol, 1-20ml of glycerin and 10-20g of citric acid; the pH value of the conservation solution is kept to be 5-6, and water is added for making up to constant volume of 1000ml. The specimen conservation solution can effectively keep the original color and luster of a specimen, the softness of all muscular tissues and ligaments and good toughness and elasticity; no moldy phenomenon occurs to the liquid level and the wall of a conservation vat, exposed tissue caused by reduction of the conservation solution still has certain humidity, and no moldy corrosion phenomenon is caused; the conservation solution is transparent, has no pungent smell, has good sterilization and anti-mold properties, does not contain toxic and harmful substances, is an environment-friendly solution, and is beneficial to large-scale application.

The invention particularly relates to a method for producing an animal specimen. In order to reduce the production cost of the animal specimen, simplify production steps, reduce the production difficulty and reduce the damages to specimen producers and users, caused by substances including formalin, arsenic and the like which are used in an existing animal specimen production method, the animal specimen is produced by adopting a cyanoacrylate binding agent in a sealed manner based on the advantages of the cyanoacrylate binding agent of quick drying, strong binding property and the like; and the product is used for repairing crushed animal specimen limbs, sticking animal bones and imitating biological phenomena of the living nature. Compared with traditional animal stripping specimen production and animal immersing specimen production, the method has very great advantages in the aspects of production cost, operation steps, safety, and preservation and utilization of the specimen; and the method can relate to the field which cannot be reached by an existing specimen production method, namely the production of compound type specimens.

The invention discloses specimen preservation fluid good in preservation effect and a preparation method of the specimen preservation fluid. The preservation fluid is mainly prepared from 50% glutaraldehyde, polyoxyethylene aliphatic alcohol ether, industrial alcohol, benzalkonium bromide, phenol, glycerinum, ethylenediamine tetraacetic acid disodium salt and water. The prepared preservation fluid is free of formaldehyde, slow in volatilization, free of pungent gas, quite low in toxicity, high in safety, good in preservation effect and capable of making a specimen good in color and luster, preventing the specimen from mildew after long-term preservation and making the specimen soft in texture.

A two-part container for preserving material samples during storage and transport is separable and can be sealed with the presence of an elastomeric O-ring and internal threads on each part of the container. In the configuration at which the threads first engage between the two halves of the container, there is a small hole in the outer top part just above the O-ring of the bottom mating part. When the two container parts are mated and the sealing O-ring is below the small hole, inert gas can be made to flow through an inlet valve, into the container, and out through the small hole. In this configuration, the inert gas flows through the container and purges the atmospheric gas, replacing it with inert gas. After a period of time, the two container parts are rotated so that the sealing O-ring moves above the small hole. This will stop the flow into and out of the container. After this, the gas inlet valve is closed to seal the inert gas in the container. After the valve is closed, the pressure in the container is increased by screwing the two parts of the container in relation to each other such that the volume of the container is decreased. Prior to opening, the efficacy of the container can be checked by releasing the gas while the container is in the compressed state.

The present invention discloses an acer palmatum thunb variety acer matsumurae green retention method, and belongs to the technical field of plant specimen production. According to the present invention, Mg<2+> in the leaf is replaced with Cu<2+> so as to achieve the long-term green retention of the green leaf, such that the plant specimen is retained for a long time, the morphological structure of the material is preserved at a maximum, the specimen observation clarity is increased, the problems that the long-term green retention of the green plant specimen cannot be achieved and the environmental pollution exists during the specimen preservation and storage are solved, and the good application prospects are provided in the plant research and plant viewing fields.

The invention discloses a microbial specimen preservation and conveying device which comprises a double-layer preservation and conveying frame, a non-corrosion-resistant microbial specimen conveying and preservation container, a direct culture medium cultured microbial specimen conveying and preservation container, an anaerobic conveying culture medium microbial specimen conveying and preservationcontainer and an aerobic conveying culture medium microbial specimen preservation container; the transverse center and the longitudinal center of the lower-layer preservation and conveying frame of the double-layer preservation and conveying frame are provided with anaerobic conveying culture medium microbial specimen conveying and preservation container channels respectively; a sliding rail is arranged in each anaerobic conveying culture medium microbial specimen conveying and preservation container channel; and the ends of the sliding rails are provided with switches respectively. By adopting the microbial specimen preservation and conveying device, microbial specimen can be placed in specimen preservation containers with different storage conditions in a classifying manner, so that medical workers can quickly collect and convey specimens, the survival rate of the specimens is high, and pain of the patients caused by sampling again is relieved.

A making method of a gel specimen belongs to the technical field of specimen making. The method comprises a step that a processed specimen is put in a specimen preservation object, the specimen preservation material comprises an upper layer and a lower layer, the upper layer is a liquid formaldehyde layer, and components of the solid gel layer comprises a gel, sugar and water. The depth of the upper-layer formaldehyde liquid is 1-2cm. The components of the solid gel layer concretely comprise 1-3 parts of the gel, 5-8 parts of the sugar and 500-600 parts of water. The method utilizes the transparent and compact characteristic of the gel to make an original specimen, the specimen does not deform or fade, and deformation and fading of the specimen are difficult to overcome. The preservation of the gel specimen in a gel form only needs a small amount of a preservation liquid comprising formaldehyde, alcohol and water, so the consumption of harmful substances is reduced, and harms of volatilization to the environment in the preservation process are reduced. The above used materials are heated as a high temperature, a small amount of formaldehyde is used for sealing, and a container is sealed, so the specimen will not decay.

The invention relates to the technical field of biology, and discloses tooth specimen preservation liquid and application thereof and a tooth specimen preservation method. The preservation liquid comprises sodium chloride, potassium chloride, disodium hydrogen phosphate, monopotassium phosphate, penicillin, streptomycin and amphotericin B. Sodium chloride, potassium chloride, disodium hydrogen phosphate, monopotassium phosphate, penicillin, streptomycin and amphotericin B are selected to form the novel tooth specimen preservation liquid; compared with existing preservation liquid, the preservation liquid can provide a living environment more suitable for dental pulp stem cells, the activity of the dental pulp stem cells is not influenced, meanwhile, the contamination degree of bacteria on the cells is greatly reduced, and effective protection is provided on the aspects of preservation and transportation.

The invention discloses a specimen preservation device for a urology department. The specimen preservation device comprises a storage box, the left side of the front surface of the storage box is movably connected with a box door, a damping pad is fixedly connected to the inner wall of the storage box, a placing frame is fixedly connected to the inner wall of the damping pad, two clamping plates,two shells and two fixing blocks are arranged on the top of the placing frame correspondingly, and soft pads are fixedly connected between the opposite sides of the two clamping plates. According to the device, the storage box, a second spring, connecting rods, a first spring, the soft pads, the clamping plates, a connecting plate, vertical plates, the shells, the box door, a sealing sleeve, a boxlock, the damping pad, the placing frame, a linking block, a sterilizing lamp, a drying agent containing box, a linking plate, the fixing blocks, a sliding groove, a sliding block, a third spring anda groove are arranged and used cooperatively, so that the problem that an existing specimen preservation device for the urology department is poor in clamping effect is solved, and the specimen preservation device for the urology department has the advantage of being good in clamping effect.

The invention provides a making method of a herbarium specimen. The method includes: collection treatment, pressing finishing, drying treatment, freezing treatment and other steps. The specific stepsinclude: collecting specimens, pretreating the specimens by a conventional method, stacking the specimens in a specimen holder by absorbent paper, corrugated paper and a moisture absorbent, carrying out constant-temperature color-retaining shaping for 18-24h in an environment of 25-35DEG C, replacing the absorbent paper, and then carrying out constant-temperature drying for 12-24h in an environment of 55-65DEG C, fixing the specimens on graph paper, then conducting low temperature freezing for 12-24h, and placing the specimens to room temperature so as to obtain the herbarium specimen. The method provided by the invention has faster specimen making speed, shortens the time than the conventional pressing method, also maintains the original color of plant and prevents insect damage, therefore the making method of a herbarium specimen provided by the invention can enable longer preservation of the specimen.

The invention relates to a novel animal specimen preservation gel as well as a preparation method and use thereof and belongs to the field of environment-friendly novel materials. The gel is prepared from the raw materials in percentage by mass: 1-10% of acrylamide compound, 15-30% of Tris-HCl, 0.1-0.5% of N,N-methylene-bis-acrylamide, 5-20% of sodium lauryl sulfate, 0.5-1.0% of ammonium persulfate and 38.5-78.5% of solution which is prepared from water and has the pH of 3.5-5.0. The pH is 3.5-5.0, so that animals and plants are effectively inhibited from breeding bacteria and molds; the animal specimen preservation gel disclosed by the invention has good effects on preservation, fixation, sterilization and corrosion prevention; the preservation gel is simple and convenient to prepare, the raw materials are all low-toxicity environment-friendly chemicals, and the injury/harm to the human/environment is little, so that the gel is a very good product for producing an animal/plant specimen and is convenient to transport.

The invention relates to the application of glucomannan gum in preservation of specimens, wherein the specimens are animal specimens or plant specimens; the invention also relates to a preservation method of the specimens. The preservation method of the specimens comprises the steps of using a formaldehyde solution and/or an ethanol solution to treat the specimen for 12-24 hours, and then storing the specimen in a sealing way by using glucomannan gum gel; the glucomannan gum is applied to the preservation of the specimens for the first time, and the glucomannan gum is capable of maintaining the complete shapes of the biological specimens for a long time in the preservation process of the specimens and does not has any poison or corrosion effect for the specimens, so that the defects that the organisms of the specimens easily become hard, and are deformed, faded and the like since the formaldehyde solution, the ethanol solution and the like are used can be avoided, and the preserved specimens are convenient to carry and easy to transport; the glucomannan gum is applied to the field of the preservation of the specimens, so that a new idea is provided for the field of the preservation of the specimens; the application of the glucomannan gum in the preservation of the specimens has higher popularization and application values.

The invention relates to a specimen preservation composition, its use method and application, and belongs to the technical field of specimen preservation. The specimen preservation composition of the present invention comprises the following components in parts by weight: 10-15 parts of alum, 8-12 parts of potassium nitrate, 5-10 parts of table salt, and 1-2 parts of realgar. After the composition of the present invention is mixed with water, it can obtain reliable anti-corrosion and anti-mildew properties, easy-to-obtain raw materials, low cost, safe and non-toxic use, no bad irritating smell, good preservation effect, no precipitation, no shrinkage of specimens, and natural color specimen preservation solution.

The invention relates to the field of specimen preservation, in particular to a specimen preservation method, a multifunctional specimen box assembly and specimen boxes. The multifunctional specimen box assembly comprises protection assemblies and connecting assemblies. The protection assemblies comprise bodies, adjusting grooves and adjusting bags. The adjusting grooves is cavity structures arranged on the bodies, the adjusting grooves communicate with holes in the first sides of the bodies, and the adjusting bags are detachably installed in the adjusting grooves. The specimen boxes can be assembled fully according to the shape of specimens. The temperature, humidity and the oxygen content inside the sample boxes can be automatically adjusted and maintained for a long time. Anti-collisionlayers can prevent the specimens from being damaged on impact. Pressure valves can prevent the specimens from being damaged by pressure jump in the opening process. Heat transfer assemblies can prevent the specimens from being damaged by temperature jump in the opening process. Stacking of the specimen boxes is convenient through camping seats. Shading covers and photosensitive glass can preventthe specimens from being damaged by excessively bright external light in the observation process. Sensors and displays facilitate the observation of internal environmental parameters.

The present invention comprises a specimen preserver. A bubble reservoir is used to hold a preserving liquid such as artificial cerebrospinal liquid (aCSF). Oxygen is introduced into the aCSF by a gas diffuser which is attached to the bubble reservoir. The tissue samples are contained in one or more chambers in a holding platform. The platform is suspended well above the bottom of the bubble reservoir. The lower portion of each of the chambers is open toward the bottom of the bubble reservoir, but is covered by a fine mesh. The gas introduced into the aCSF circulates within the bubble reservoir. However, the tissue samples are not directly exposed to the gas bubbles because the fine mesh excludes the bubbles from the chambers in which the tissue samples are housed.

The present invention relates to a preparation method of a cordyceps specimen preservation solution. The formula includes 1.0% of acetic acid, 0.5% of copper acetate (the composition is added selectively according to the color of cordyceps), 1.5% of formaldehyde, 0.2-0.5% of sulphurous acid (the composition is added selectively according to the color of cordyceps), 2.0-5.0% of glycerol, and 0.5% of ethanol. The solution can not only maintain shapes of cordyceps, but also keep the color, so that the cordyceps specimens are better preserved.

The invention discloses a device for preparing and preserving pathological diagnosis specimens. A temperature display screen is arranged in the middle of the upper end of the specimen preservation box, one end of the temperature display screen is provided with a power indicator light, and the other end of the temperature display screen is provided with a Abnormal alarm light, a specimen preservation box door is arranged in the middle of the specimen preservation box, and is hinged with the specimen preservation box through a hinge, a specimen preservation control box is arranged at the bottom of the specimen preservation box, and one end of the specimen preservation box is set There is a specimen making room, the upper end of the specimen making room is provided with a specimen placing platform, the middle of the specimen placing platform is provided with a rotary cutting platform, the bottom of the rotary cutting platform is provided with a lifting device, and the middle of the lifting device is provided There is a lifting screw; the invention has a simple structure and a reasonable design, and can simultaneously make and preserve pathological diagnosis specimens, which is convenient for medical staff to operate and reduces certain work difficulties.

The invention discloses a formaldehyde-free specimen preservation liquor. The preservation liquor is prepared from the following raw materials in parts by weight: 10-20 parts of methanol, 5-7 parts ofphenoxyethanol, 3-5 parts of potassium sorbate, 7-11 parts of glycerin, 2-4 parts of potassium nitrate, 1-2 parts of benzoic acid, 0.5-0.7 parts of picric acid, 1-2 parts of isothiazolone, 0.4-0.6 parts of thymotic acid, 0.9-1.5 parts of sodium chloride, 2-4 parts of disodium hydrogen phosphate, 0.8-1.2 parts of penicillin, 0.8-1.2 parts of streptomycin and 0.5-1.5 parts of flavor. The preservation liquor does not contain formaldehyde, volatilizes slowly, does not have pungent smell, comprises easily available raw materials, has low cost, high safety and good preservation effect, does not mildew when stored for a long time, always keeps a soft state, can be repeatedly used, is not easy to damage and does not contain toxic or harmful substances and is green and environmentally friendly; harm of formaldehyde to human bodies is eliminated, and the burden on the environment is reduced.

The invention discloses a method for producing a typhaceae plant specimen, wherein the method includes three steps of collection finishing and dry processing, color protection and mouldproof processing, and specimen preservation; the color protection and mouldproof processing includes the steps of coating the surface of typhaceae plant inflorescences or infructescences with paraffin and includes the following specific steps: baking the typhaceae plant inflorescences or infructescences to be hot, fast dipping paraffin melted by heating with a soft brush, evenly coating the typhaceae plant inflorescences or infructescences, and thus obtaining the specimen. The method is simple and feasible and low in cost, and avoids the shortcomings that cylindrical typhaceae plant inflorescences are easily broken by a traditional wax leaf specimen making method, and the inherent form is well preserved.

The invention belongs to the technical field of insect specimen preservation, and discloses a method for permanently preserving externalia of small-size insects. The method for permanently preserving the externalia of the small-size insects comprises the following steps: putting acquired fresh specimens into test tubes with absolute ethyl alcohol, and bringing back to a laboratory; storing the test tubes in a low-temperature refrigerator of minus 35 DEG C to minus 40 DEG C; and identifying varieties, taking out the specimens, taking off externalia from abdomen, dissecting, observing different parts, bleaching for 3-4 times in absolute ethyl alcohol, diluting extra water or even removing extra water, and preserving in transparent glass devices with triglyceride. By adopting the method, the problem that dead insect specimens are very liable to rot and deteriorate is solved, the insect specimens can be well preserved for a long time or permanently, and moreover important structures can be repeatedly taken out and observed.

The invention provides a specimen transportation, storage, freshness preservation and heat preservation device and a method thereof, and relates to the technical field of specimen storage and transportation. The specimen transportation, storage, freshness preservation and heat preservation device comprises a box body, a heat preservation layer is connected to the inner side of the box body in an embedded mode, a plurality of ice bag grooves are evenly formed in the top end of the heat preservation layer, and underframes are connected to the inner sides of the ice bag grooves in an embedded andsliding mode. According to the specimen transportation, storage, freshness preservation and heat preservation device and the method thereof, rotating heads are rotated to enable embedded screw rods to be gradually rotated out of threaded grooves, so that a sealing cover is away from the box body, and then specimens are taken out and placed at a designated position; then a fixing ring frame is gradually lifted along a ring frame groove by pulling handrails in adjusting grooves upwards, and meanwhile the underframes drive ice bags to be gradually moved out of the ice bag grooves, so that the ice bags in all the ice bag grooves can be taken out by workers at a time; and then ice bags on the inner bottom side of the box body and ice bags inside the sealing cover can be taken out by pulling out pulling plates again through handles, so that the use experience for using the device by the workers is conveniently improved, and the ice bag unloading efficiency of the workers is improved.

The invention belongs to the technical field of specimen manufacturing, and particularly relates to a manufacturing method of a transparent embedded oil camellia fruit specimen. A colorless and transparent synthetic polymer material is used to embed treated oil camellia fruits inside the material, sealed preservation is carried out, shortcomings of the specimen manufacturing method can be effectively prevented, preservation and maintenance are easy to carry out, the later maintenance is basically not needed after one-time forming, six surfaces of the specimen are all clearly visible, the plantmorphological characteristics and color of the specimen can be relatively well maintained, and thereby the method is a specimen manufacturing method which is convenient for specimen preservation andhas a long preservation time, and does not need to carry out follow-up special maintenance on the specimen. The three-dimensional effect of the oil camellia fruit-embedded specimen is outstanding, themaintaining of the prototype and the original color is relatively good, the operation method is simple and convenient, the cost is low, and the specimen is attractive and durable, is a good researchand teaching material, and is a handicraft and decoration material.

The invention belongs to the technical field of specimen treatment and particularly relates to a preservation fixation solution of a pathological tissue. The preservation fixation solution of the pathological tissue comprises the following ingredients in parts by mass: 10-15 parts of furfuraldehyde, 8-12 parts of hydroxyl compound, 1-6 parts of mannitol extract, 6-10 parts of alliin, 6-8 parts of(A2) trimethylglycine, 1-3 parts of carbon-based-4,4-diacetone-xylose-fatty alcohol-phosphate chelation compound polymer and 50-60 parts of water. The preservation fixation solution is free from methanal and alcohol, and nontoxic, is not required to be replaced, has no influence on a working environment, a good specimen preservation effect and a significant antibacterial effect; the tissue is freefrom mildewing and shrinkage, natural in color, flexible and wet; at the same time, the solution is stable in property; the specimen has no mildew spots or rancidness after simulated accelerated preservation for 6 months at 40 DEG C; the preservation solution is clear; the specimen keeps initial shape, color, rigidity and tenacity; and the solution can be massively popularized and used, particularly in a high-temperature area.