200 results about "Blood Stains" patented technology

The invention discloses a natural solid cleaning agent for cleaning stains on hard surfaces of objects, which is prepared from the following raw material in percentage by weight: 6 to 50 percent of kaolin, 4 to 36 percent of zeolite, 7 to 45 percent of calcite powder, 3 to 40 percent of pumice powder, 4 to 55 percent of feldspar powder, 2 to 17 percent of kieselguhr, 3 to 22 percent of montmorillonite powder, 4 to 40 percent of talcpowder, 1 to 15 percent of saponin, 3 to 18 percent of white carbon black and 0 to 40 percent of water. The natural solid cleaning agent has desirable cleaning effect on various stains, such as oil stains, sweat stains, tea stains, juice stains, milk stains, blood stains, ink stains, ash stains and dust stains on hard surfaces of metal, ceramic, wood, glass, fiber plates and stone plates. The raw materials are natural powder and plant extracts. The cleaning agent has high biodegradability and is safe, environmentally-friendly, pollution-free and convenient to use.

The invention discloses a disinfection device and a disinfection solution for inspection appliances in an inspection department. The disinfection device comprises a cabinet body, a cabinet door and an ultraviolet lamp tube, wherein a disinfection solution box is arranged at the upper part of the cabinet body, a hanging frame, a separation trough and a rotary spray head are arranged in the cabinet body, four control buttons are arranged on the outer surface of the cabinet body, and an electric heating tube and a waterproof layer are arranged on the inner surface of the cabinet body. The used inspection appliances are directly hung on the hanging frame or placed in the separation trough, the disinfection solution which is sprayed out of the rotary spray head is firstly used for washing and decontamination, then drying is performed, the further disinfection is finally performed through the ultraviolet lamp tube, the disinfection solution is stored in the disinfection solution box, and the disinfection device further comprises an automatic early warning device; and the disinfection solution comprises components which can dissolve blood stains, dirt and the like on the inspection appliances and perform preliminary decontamination and disinfection. The disinfection device disclosed by the invention is simple to operate, thorough in disinfection, safe and sanitary, the inspection appliances do not need to be conveyed specially by inspection staff, and the sharp injuries to the inspection staff when the inspection appliances are stored and taken back and forth and are put into a disinfection tank for disinfection are also avoided.

The invention discloses an electric coagulation forceps system with illumination and suction functions and a supporting seat. The electric coagulation forceps system is characterized by comprising an electric coagulation forceps body and the supporting seat, wherein the forceps body comprises forceps rods and forceps tips; illumination devices and suction channels are arranged on the forceps body; inlets of the suction channels are positioned at the forceps tips; the illumination devices are light-emitting bodies buried in illumination channels in the forceps body; outlets of the illumination channels are arranged at the forceps rods or the forceps tips; the supporting seat comprises a base; grooves matched with the two forceps rods of an electric coagulation forceps are arranged on the base; cavities for receiving the forceps tips are arranged at lower parts of the grooves; a main control chip and a position sensor are also arranged on the base; and a cleaning device is arranged between the two grooves. The electric coagulation forceps system is simple in structure, and can provide illumination and the channels for sucking blood stains. After the electric coagulation forceps is used, the forceps rods can be directly inserted into the grooves on the supporting seat, the position sensor senses information that the forceps rods are inserted into the grooves and sends a signal to the main control chip, and the main control chip controls the cleaning device with a wiping function to automatically wipe the electric coagulation forceps.

A liquid detergent consists of aliphatic alcohol polyethenoxy ether sodium sulfate 5-15 proportion, lauryl sodium benzenesulfonate 2-10 proportion, fatty acid diethanolamine 1-8 proportion, hydrogen peroxide 2-6 proportion, ammonia water 0.5-5 proportion and water 40-92 proportion. It spends 30 s-6 mins in eliminating various mechanical and edible stains, blood stain, ball-pen ink, beverage stain and tea stain. It shortens washing time to 4-8 mins and costs 0.5-0.8 yuan/kg and is economical.

The invention belongs to the technical field of biological nucleic acid detection, and particularly relates to a rapid nucleic acid extraction kit and applications thereof. The kit of the invention comprises a grinding rod, an extraction liquid, an extraction column, a micro ultra-filter and a centrifuge tube, wherein the extraction liquid is a DEPC aqueous solution containing chelex-100. The invention further relates to a use method for the kit, and applications of the kit in extractions of DNA or RNA from pathological tissue paraffin section samples, samples of blood stains and semen stains, tissue fluid samples, cerebrospinal fluid samples, blood samples, serum samples, plasma samples, urine samples, hydrops samples, and tissue cell samples. According to the present invention, content and quality of the nucleic acid extracted by the kit of the present invention can well meet requirements of follow-up reactions of PCR, RT-PCR and sequencing. With the present invention, limitation of complexity and time consuming of nucleic acid extraction in the prior art are overcome well, and characteristics of safety and environmental protection are provided.

The present invention relates to a method for isolating mesenchymal stem cells from placental vessels and used digestive enzyme compositions. The method comprises the following steps: the placenta issterilized with alcohol; Dissecting placental blood vessels from the placenta; Cut into pieces, wash with PBS, filter the residual blood stains to obtain placental vascular tissue; Adding mixed enzymesolution to digest; End digestion, filter and collect tissue fluid; The placental mesenchymal stem cells (P0) were obtained by centrifugation and cultured with DMEM-F12 basal medium was resuspended and the number and viability of nucleated cells were counted. The obtained cells are cryopreserved with cryopreservation protection solution so as to be re-cultured before use, or the passages and/or the mesenchymal stem cells are continued to be subjected to cell identification and/or detection, cryopreservation, library establishment and the like. The method of the invention can effectively improve the efficiency of isolating mesenchymal stem cells from the blood vessels of the placenta.

The invention provides a multiplex amplification kit containing 33 loca of a human genome. The multiplex amplification kit contains 18 A-STR loca which are recommended by a DNA database of the Ministry of Public Security to be used and also contains 14 Y-STR loca which are low in mutation rate and high in polymorphism and the Amelogenin locus, simultaneous amplification and detection on the 33 loca through a single tube is achieved, and synchronous amplification and detection on autosomes and Y chromosomes are achieved in a single experiment. The kit can directly amplify blood stains and saliva stains which take filter paper and an FTA filter as carriers without needing the template extraction and purification process and also can be suitable for DNA samples extracted through different extraction methods. The kit can be used for rapid investigation of a case, can improve the detection efficiency and increase the case investigation speed and especially has the significant effect on male sample trace detection in a raping case and father-child paternity test detection. The kit is wide in application range, good in compatibility and completely compatible with an existing legal medical expert DNA detection system.

The invention discloses an umbilical cord mesenchymal stem cell separation method. The umbilical cord mesenchymal stem cell separation method includes the steps of (1), taking fresh umbilical cords, cutting the fresh umbilical cords short and removing blood stains; (2) cutting the fresh umbilical cords into tissue blocks in the size of 2-3mm<3>, uniformly spreading the tissue blocks in a culture dish coated with an extracellular matrix, culturing at the temperature of 37 DEG C under 5% CO2 for 1-4 hours, adding a mesenchymal stem cell medium and continuing culturing at the temperature of 37 DEG C under 5% CO2; (3) renewing half of solution of the culture medium in the fifth day of culturing, removing all the tissue blocks and renewing all solution of the culture medium in the eighth day, and harvesting cells when cell confluence is 30-40%. The umbilical cord mesenchymal stem cell separation method is capable of separating the umbilical cord mesenchymal stem cells efficiently and is simple to operate and promising in application prospect.

The invention discloses a liquid chromatography-tandem mass spectrometry detection method for a plurality of lipid-soluble vitamins in dried blood spots. The method comprises the following steps: preparing 1 to 3 blood stain samples, placing the 1 to 3 blood stain samples in a centrifugal tube, adding first extraction liquid, and performing vortex treatment for 25 to 35 minutes; adding an internalstandard solution and second extraction liquid, and performing vortex treatment for 2 to 4 minutes; centrifuging the mixture, transferring a supernatant into another centrifugal tube, performing blowdrying with nitrogen gas, adding reconstitution fluid, performing vortex treatment for 2 to 3 minutes, and sampling the reconstitution fluid for analysis; injecting a dry blood spot sample solution prepared in the step (1) into a LC-MS/MS (Liquid Chromatograph-Tandem Mass Spectrometer), and recording a chromatogram; and acquiring the retention time and mass spectrum data of the plurality of lipid-soluble vitamins. The detection method has the advantages of easiness, sensitivity, rapidness, accuracy, high specificity and high repeatability, and can be used for detecting the plurality of lipid-soluble vitamins in the dried blood spots.

The invention provides a separating and culturing method for olfactory ensheathing cells of rats. The separating and culturing method comprises the following steps: (1) disinfecting a tissue processing instrument; (2) selecting male SD rats of 2-3 months old, killing the male SD rats after anesthesia, separating the olfactory mucosa tissue by adopting surgical scissors, placing the tissue in PBSsolution which is precooled, is sterile and contains double antibodies, and washing the tissue for a plurality of times, so that blood stains and outer membranes are removed; (3) cutting up the tissue, and carrying out digestion by adopting preheated neutral enzyme and trypsin respectively; (4) terminating the digestion, carrying out centrifugation, and discarding the supernatant; (5) inoculatingthe obtained product into an enveloped culture flask by adopting an artificial wall sticking method; (6) carrying out incubation for 1-2 h, and carrying out culturing in the environment being at 37 DEG C containing 5% CO2; (7) carrying out cell purification; (8) carrying out cell morphological observation; (9) carrying out cell subculturing; (10) carrying out cell counting and survival rate testing; and (11) carrying out immunological identification. For the separating and culturing method for olfactory ensheathing cells of rats, the operation is simple, a large number of cells are obtained, the survival rate is high, the method belong to an ideal primary separating and culturing method for the olfactory ensheathing cells of rats, and a reliable cell resource is provided for the experiment.

The invention discloses a laparoscopic lens with the automatic cleaning function, which includes a connector, Insertion tube and grip, Operation process, Handgrip lever, By squeezing two symmetricallyarranged arcuate keypads, extrusion bar, As that distance between the two connected rods is shorten, the connecting rod drives the slider to squeeze the compression spring, so that the two L-shaped cleaning rods move relative to each other, until the adjacent side walls of the two L-shaped cleaning rods contact, you can also press the arc-shaped keypad repeatedly, Cleans up blood stains on miniature cameras, Reducing blood stains on miniature cameras, Install the connector to the live display, A LED lamp is turned on to illuminate that interior of the abdominal cavity of the human body and provide illumination for the imaging process of the miniature camera. The invention can semi-automatically clean the stains on the laparoscopic lens, and the operation process is time-saving and labor-saving, convenient for doctor to use, and can clean the blood stain on the laparoscopic lens in the interior of the abdominal cavity of the human body and provide safety guarantee for the treatment process of patients.

The invention provides a novel medical multi-point operating table, comprising a base, a support post, a bed and universal wheels. The support post is fixed in the middle of an upper surface of the base and comprises a fixed post, a first telescopic post located in the fixed post and a second telescopic post located in the first telescopic post. The bed is disposed at the top of the support post and comprises sequentially from left to right, a head bed, a trunk bed, a waist bed and a leg bed. The universal wheels lockable are evenly distributed on the lower surface of the base. The novel medical multi-point operating table is simple in structure and convenient to use; a multi-point component of the bed has freely adjustable height, and the surgical needs of different parts, such as the head, waist and trunk, are met; a slide slot and a slider are provided, parts to be mounted are chosen according to actual surgical needs, and surgical operating is facilitated; an anti-fouling layer and an absorbing layer are provided, effective absorption is given to blood stain and the like occurring in the operating process, bed contamination is prevented, and work difficulty is substantially reduced for medical staff.

The invention discloses a fish-cake making method, which comprises the following steps of: soaking fresh fish for 10 minutes by using a saline solution (concentration: 1%); cleaning blood stains and black membranes in the abdominal cavity of the fresh fish by using flowing water; removing red meat on the surfaces of cut fish fillets so as to obtain fish slices; soaking the fish slices for 10 minutes by using ice cake containing water, and stirring the fish slices occasionally; pounding the fish slices (subjected to draining) to pieces, and removing fishbones so as to obtain minced fillets; carrying out dosing and seasoning on the minced fillets so as to obtain fish paste; and carrying out water-resisting cooking on the fish paste, and making the cooked fish paste into a finished fish-cake product. The method is implemented by taking fresh fish, fat meat, tapioca flour and sweet potato flour as main raw materials and taking egg whites and egg yolks as auxiliary raw materials through adopting advanced processes such as refined filtration, blending, mixing, curing and freezing. An obtained product is light yellow in color and luster, high in resilience and toughness, delicate, delicious, smooth in surface and rich in nutrition; and the product is a quick-served snack food (with a unique flavor) which is excellent in color, aroma and taste and can be eaten by consumers through slightly heating or frying.

A composite Chinese medicine in the form of dripping pill and soft capsule for treating dry and painful throat, dry cough and blood-stained sputum, and its preparing process are disclosed.

The invention discloses a preparation and preservation method of a canine and amniotic membrane, and relates to the technical field of a tissue engineering material, aiming at solving the technical problem of the prior art which cannot prepare a canine and amniotic membrane which is good in effect. The technical scheme comprises the following steps: keeping a canine and amniotic membrane which is obtained in a sterile mode in a sterile physiological saline solution; repeatedly flushing with membrane with a great amount of sterile 0.9% sodium chloride physiological saline solution, so that residual blood stains, mucus, chorion tissue fragments on the amniotic membrane are flushed away; and repeatedly flushing the membrane by virtue of a sterilized phosphate buffered solution PBS which contains Na2HPO4, KH2PO4, NaCl and KCl as main ingredients, so that visible blood vessels and blood clots are cleaned, wherein the cleaned amniotic membrane is uniform in color and is in the form of a soft semi-transparent membrane.

The invention relates to a disinfection treatment method for surgical medical instruments. The disinfection treatment method uses surgical scissors processing and manufacturing equipment; the equipment comprises a workbench and a rectangular groove arranged above the workbench; the rectangular groove is internally provided with a fixing device; the rectangular groove is internally provided with a cleaning device; and the top of the rectangular groove is provided with a disinfection device. According to the invention, the outer wall of surgical scissors to be cleaned can be cleaned through a plastic brush, so that the situation that impurities on the surgical scissors are tightly attached to the surface of the surgical scissors and not prone to being removed is prevented; an air pump can be automatically powered on through a first water tank, a battery, a conductive plate, the air pump and a spraying head, so that the working efficiency is improved, and manpower is saved; and the air pump sprays water in the first water tank out of a water spraying opening through the spraying head, and the hinged position of the lower end of the to-be-cleaned surgical scissors is washed, so that the situation that blood stains and dirt remaining at the hinged position are not easy to clean and secondary use of the surgical scissors is affected is prevented.

A composite Chinese medicine in the form of dripping pill and soft capsule for treating infiltrative pulmonary tuberculosis and blood-stained sputum, and its preparing process are disclosed.

According to the present disclosure, a method of calculating an angle of impact of a bloodstain is performed by a device for calculating an angle of impact of a bloodstain and includes obtaining a captured image of an analysis target by using a camera, extracting a spatter stain included in the analysis target, by analyzing the obtained captured image, calculating a major axis length and a minor axis length of the spatter stain, estimating an angle of impact of the spatter stain by using the major axis length and the minor axis length of the spatter stain, and outputting the spatter stain and the angle of impact of the spatter stain.