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35 results about "Ringers solution" patented technology

Ringer's solution is a solution of several salts dissolved in water for the purpose of creating an isotonic solution relative to the body fluids of an animal. Ringer's solution typically contains sodium chloride, potassium chloride, calcium chloride and sodium bicarbonate, with the last used to balance the pH.

Novel nano-lipid carrier for injection embodying paclitaxel series substances and preparation method thereof

The invention provides a novel nanometer lipid carrier containing a taxol substance for injection and a method for preparing the same. Mixed lipids are used as materials; liquid lipid and solid lipid with different physical states are mixed according to the proportion of between 0 and 100 percent to obtain the nanometer lipid carrier (NLC) which is prepared by a mixed solid-liquid substrate and has different crystalline states; and microemulsion (ME) prepared by a full liquid substrate and solid lipid nanoparticles (SLC) prepared by a full solid substrate are also obtained. The new nanometer lipid carrier can increase or improve the encapsulation efficiency and the release property of drug and has the characteristics of high drug-loading amount, good stability and low toxicity. The taxol substance, a carrier material, a surfactant and injection water are respectively stirred to form two phases of oil and water; the oil phase and the water phase are mixed and emulsified to obtain primary emulsion; further taxol substance nanometer lipid carrier injection or suspension type injection which meets the requirement of intravenous injection is prepared by a high-pressure homogenization process; or a protective agent is added into the injection to prepare solid powder for injection by vacuum freeze drying or spray drying; before use, normal saline, a glucose solution or a Ringer solution is used for dilution; and the solid powder can be rapidly dissolved. Experiments show that the prepared nanometer lipid carrier containing the taxol substance for injection can improve targeting property to tumor cells, improve curative effect, greatly reduce toxic and side effects, has simple preparation process and low cost and is suitable for large-scaled industrialized production.
Owner:李淑斌

Pelteobagrus fulvdraco sperm ultralow temperature freezing and recovery technology

The invention relates to pelteobagrus fulvdraco sperm ultralow temperature freezing storage and recovery method. Parent pelteobagrus fulvdraco which is in good shape and good growth, has no disease and is sexually mature is selected, 30Mug/kg LHRH-A2 intraperitoneal injection is carried out to induce sperm increasing, after 36 hours, dissection is carried out to obtain spermary, and the spermary is cut into pieces in a clean mortar cooled in a refrigerator at 4 DEG C in advance, the pieces are diluted by Ringers solution in the proportion of 1:6, balancing is carried out for 30min at 4 DEG C, 10% methyl alcohol is added, and mixing to be uniform is carried out, packaging is carried out, balancing is carried out for 10min 6cm above liquid nitrogen surface, and balancing is carried out for 5min on the liquid nitrogen surface, and then the product is thrown into liquid nitrogen to be stored. Water bath ate 37 DEG C is carried out, activation solution SM is used for activation, pelteobagrus fulvdraco roe is extruded into a container, frozen sperm is added in drops in the sperm roe quantity ratio of 105:1, stirring to be uniform is carried out, then appropriate activation solution SM is added in drops, and stirring to be uniform is carried out, so that fertilization of roe is carried out. The sperm stored by the invention has high quality, has insemination capability and has important theoretical significance and application value on seed quality saving, inheritance breeding, sustainable culture and disease control of pelteobagrus fulvdraco.
Owner:FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE +1

Preparation method of human skin simulation material with three-dimensional gradient hole structure

The invention discloses a preparation method of a human skin simulation material with a three-dimensional gradient hole structure. The preparation method is characterized by taking sodium alginate or oxidized sodium alginate of which the relative molecular mass is more than 100,000 as a solute and deionized water, distilled water, normal saline, water for injection or ringer solution as a solvent, forming temperature gradient freezing molding in a dedicated forming die in the vertical direction, and then carrying out a cross-linking reaction, thus obtaining a porous material, wherein the inner part of the porous material is in a honeycomb shape, a plurality of numbers of holes are formed in the porous material, the pore diameter of each hole is respectively in gradient change from large to small from the lower surface to the upper surface, the pore diameter of the upper surface is 5 to 70 mum, the pore diameter of the lower surface of 50 to 200 mum, every two adjacent holes are communicated with each other, and the porous material has a skin simulation structure. According to the preparation method disclosed by the invention, the preparation technology is simple and is easy to control, the preparation cost is low, and a prepared product is good and stable in quality, has the skin simulation structure and has good water absorbing performance, good biodegradability and good biocompatibility.
Owner:QINGDAO UNIV

Chimeric antigen receptor T cell preparation

The invention discloses an immune cell preparation. The preparation consists of immune cells and and an immune cell preservation re-infusion liquid which is free from dimethyl sulfoxide and dextran 40, wherein the immune cell preservation re-infusion liquid consists of the following components: an electrolyte solution which is isosmotic with plasma, a human serum albumin injection and a glucose injection, wherein the electrolyte solution is any one of a sodium chloride injection, a compound sodium chloride injection, a compound electrolyte injection and a lactated Ringer's solution. The immunecell preparation provided by the invention conforms to the characteristic that China is concentrated and dense in population; and the immune cell preparation is applicable to an immune cell preparation center close to a treatment agency, and the immune cell preparation only needs to be preserved at 4-15 DEG C. With the application of the immune cell preparation provided by the invention, in particular the chimeric antigen receptor T cell preparation, a preparation process can be simplified, logistics cost can be greatly reduced, the safety of the preparation can be improved and a treatment cycle can be shortened; therefore, treatment cost of the chimeric antigen receptor T cell preparation can be reduced, so as to benefit broad patients.
Owner:英普乐孚生物技术(上海)有限公司

Method for increasing transcaucasian barb artificial reproduction fertility rate

The invention discloses a method for increasing the transcaucasian barb artificial reproduction fertility rate. The method comprises the following steps of 1, parent fish preparation; 2, artificial hormone injection, wherein a two-time injection method is adopted for performing artificial hormone injection, and the time interval between two times of needle injection is 24 h; according to the female transcaucasian barb injection dosage, the first-time injection dosage is 4 micrograms per kilogram of parent transcaucasian barb, and the second-time injection dosage is 4 micrograms of LRH-A, 800 IU of HCG, 3-5 of PG and 2,800 IG of LRH-A per kilogram of parent transcaucasian barb, and the male transcaucasian barb injection dosage is 1 / 2 of the female transcaucasian barb injection dosage; 3, artificial insemination; 4, micro running water culture fertility rate. The two-time injection method is adopted for artificial injection, and the time interval is 24 h; a semidry method is adopted for artificial insemination, a certain amount of ringer solution is added, and the transcaucasian barb artificial reproduction fertility rate can be remarkably increased, so that the key technical problem of transcaucasian barb artificial reproduction is solved, and then guarantees are provided for fry culture and commercial fish artificial reproduction.
Owner:SOUTHWEST UNIV

Wound dressing for wound treatment in damp or wet environment

The invention relates to a wound dressing (2) for wound treatment in a damp environment. The wound dressing comprises a fibre fleece-based suction / irrigation body (4) in which a super absorbent material is accommodated in a distributed manner, wherein the suction / irrigation body (4) is supplied with a salt-containing aqueous solution, particularly a Ringer's solution, preferentially a solution comprising antibacterial compounds, by the manufacturer, and comprises a packaging (6) forming the outer visible sides of the wound dressing. The packaging (6) comprises a layer (9) made from a flat textile material, especially a braided fabric, a textile fabric or a fabric, on the side of the wound dressing facing the wound. The layer (9) made from the flat textile material on the side facing the wound comprises an outer-side, partially and structurally applied atraumatically effective coating (22) made of silicone preferentially and having a degree of coverage of at most 70 %. The wound dressing is characterized in that the packaging (6) comprises a fibre fleece layer (12) on the side of the wound dressing facing away from the wound, which forms the outer visible side (14) of the wound dressing facing away from the wound, a liquid-impermeable plastic film layer (16) is arranged on the side of the fibre fleece layer (12) facing the wound, and the fibre fleece layer (12), the plastic film layer (16), the suction / irrigation body (4) and the layer (9) made from the flat textile material are not connected extensively to one another, but rather lie with the flat sides thereof loosely and movably against one another and are only connected with one another along the peripheral edges (18) of same by means of a joint connection.
Owner:IVF HARTMANN AG

A chimeric antigen receptor T cell preparation

The invention discloses an immune cell preparation. The preparation consists of immune cells and and an immune cell preservation re-infusion liquid which is free from dimethyl sulfoxide and dextran 40, wherein the immune cell preservation re-infusion liquid consists of the following components: an electrolyte solution which is isosmotic with plasma, a human serum albumin injection and a glucose injection, wherein the electrolyte solution is any one of a sodium chloride injection, a compound sodium chloride injection, a compound electrolyte injection and a lactated Ringer's solution. The immunecell preparation provided by the invention conforms to the characteristic that China is concentrated and dense in population; and the immune cell preparation is applicable to an immune cell preparation center close to a treatment agency, and the immune cell preparation only needs to be preserved at 4-15 DEG C. With the application of the immune cell preparation provided by the invention, in particular the chimeric antigen receptor T cell preparation, a preparation process can be simplified, logistics cost can be greatly reduced, the safety of the preparation can be improved and a treatment cycle can be shortened; therefore, treatment cost of the chimeric antigen receptor T cell preparation can be reduced, so as to benefit broad patients.
Owner:英普乐孚生物技术(上海)有限公司

A preparation method of a human skin simulation material with a three-dimensional gradient pore structure

The invention discloses a preparation method of a human skin simulation material with a three-dimensional gradient hole structure. The preparation method is characterized by taking sodium alginate or oxidized sodium alginate of which the relative molecular mass is more than 100,000 as a solute and deionized water, distilled water, normal saline, water for injection or ringer solution as a solvent, forming temperature gradient freezing molding in a dedicated forming die in the vertical direction, and then carrying out a cross-linking reaction, thus obtaining a porous material, wherein the inner part of the porous material is in a honeycomb shape, a plurality of numbers of holes are formed in the porous material, the pore diameter of each hole is respectively in gradient change from large to small from the lower surface to the upper surface, the pore diameter of the upper surface is 5 to 70 mum, the pore diameter of the lower surface of 50 to 200 mum, every two adjacent holes are communicated with each other, and the porous material has a skin simulation structure. According to the preparation method disclosed by the invention, the preparation technology is simple and is easy to control, the preparation cost is low, and a prepared product is good and stable in quality, has the skin simulation structure and has good water absorbing performance, good biodegradability and good biocompatibility.
Owner:QINGDAO UNIV
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