43 results about "Infections problems" patented technology

The invention relates to a vaccine composition preventing porcine reproductive and respiratory syndrome. Specifically, the vaccine composition includes an immune dosage of classic porcine reproductiveand respiratory syndrome virus antigen and / or highly pathogenic porcine reproductive and respiratory syndrome virus antigen and / or a porcine reproductive and respiratory syndrome virus NADC30 strainantigen, and a pharmaceutically acceptable carrier. The vaccine composition provided by the invention can effectively resist the attack of new epidemic strains, highly pathogenic porcine reproductiveand respiratory syndrome viruses and classic porcine reproductive and respiratory syndrome viruses, solves the infection problem of porcine reproductive and respiratory syndrome viruses of different sources of the, and is of important significance for purification of porcine reproductive and respiratory syndrome viruses.

The invention discloses a paper diaper convenient in isolating excrement. The paper diaper comprises a cylindrical waistline portion and a crotch portion; the cylindrical waistline portion is formed by connecting two side portions of a front waist exterior sheet and two side portions of a back waist exterior sheet; and an interior body is arranged on the inner side of the crotch portion and comprises a first separation layer and a second storage layer; and an excrement accommodating cavity used for accommodating excreted excrements is formed between the first separation layer and the second storage layer; the position, corresponding to an anus of a human body, on the middle back inner side of the crotch portion is provided with an opening through which the excreted excrements are convenient to enter the excrement accommodating cavity; the first separation layer is convenient for urine to pass through and is used for isolating the excrements excreted into the excrement accommodating cavity; and the second storage layer is used for receiving the excreted excrements in the excrement accommodating cavity and storing and absorbing the excrements. For the paper diaper, through the firstseparation layer and the excrement accommodating cavity, the excrements and the urine are effectively separated, cleaning and maintenance are facilitated, the skin or infection problems caused by long-time contact of the excrements with the human body are avoided, and replacement is facilitated.

The invention provides a fluorine-containing anti-bacterial coating layer of the metal material surface and a preparation method thereof and belongs to the technical field of surface anti-bacterial treatment. The coating layer comprises oxygen, fluorine, a R-F compound and a R-O compound and has a nanoscale hole structure and / or a nanoscale protrusion structure, and R is one of titanium, a titanium alloy, stainless steel, a cobalt alloy, a magnesium alloy or a zinc alloy. The preparation method comprises the following steps that (1) surface pretreatment is conducted; (2) vacuum preparation is conducted; (3) argon plasma cleaning is conducted; and (4) fluorinated treatment is conducted, specifically, argon, oxygen and carbon tetrafluoride are simultaneously pumped into a plasma reaction chamber to conduct fluorinated treatment, and a plasma-treated metal material is prepared. When the fluorine-containing anti-bacterial coating layer makes contact with a bacterium solution or other solutions, fluorion is dissolved out, and the bactericidal and anti-bacterial effects are achieved; and the preparation method can obtain the anti-infective medical metal material which cannot generate cytotoxicity, and the bacterial infective problem being relevant to metal implantable instruments is solved.

The invention aims to provide medical antibacterial austenite stainless steel. The chemical components of the medical antibacterial austenite stainless steel comprise 0.02 or the less of C, 0.2-0.8 ofSi, 0.5-1.8 of Mn, 0.02 or the less of S, 0.02 or the less of P, 17.0-18.5 of Cr, 11.5-14.0 of Ni, 2.0-3.0 of Mo, 3.0-5.0 of Cu, 0.5-3.0 of Ga and the balance Fe. By adding Ga in an austenite stainless steel matrix and through corresponding heat treatment, a Fe3Ga intermediate phase can be precipitated from the austenite matrix, and thus the quick sterilization property and the strong antibacterial property under the high bacterial concentration are achieved on the material. The medical antibacterial austenite stainless steel can be applied to implantable medical devices related to the fieldof oral cavities, and the bacterial infection problems caused by the implantable devices can be greatly lowered.

The invention belongs to the technical field of medical devices, in particular to an immuno-injection device for oncology that is easy to adjust. One side of the welding machine has a support bar, and one end of the needle head close to the side of the pipe body is engaged with a screwing block; in the present invention, the worker inserts the fixing block into the needle head, and holds the support bar by hand, and another Hold the tube body with one hand, and push the tube body to let the needle penetrate into the patient's tumor. When pushing the tube body, the needle will slide inside the fixed block, and the fixed block can fix the needle to prevent the needle from being punctured. It solves the problem that when the staff do not hold the needle to puncture the skin before the interventional treatment, it is easy to shake and cause the puncture position to shift, and the staff directly hold the needle to puncture and the problem is easy to cross Infection problem.

The invention discloses applications of deoxyschizandrin in inhibiting growth of multi-drug-resistance escherichia coli. Deoxyschizandrin has good in-vitro killing action on human multi-drug-resistance Escherichia coli resisting ampicillin, nalidixic acid, cefotaxime, ciprofloxacin, cefoxitin and the like, the deoxyschizandrin can inhibit the growth of multi-drug-resistance escherichia coli at theminimum bactericidal concentration of 25.57 microg / mL and minimum inhibitory concentration of 3.13 microg / mL. The invention provides the inhibition of deoxyschizandrin on human multi-drug-resistanceescherichia coli. The deoxyschizandrin can effectively relieve or solve the drug-resistance infection problem of the multi-drug-resistance escherichia coli, reduce the case fatality rate, thus havingimportant practical significance on providing a new concept for inhibiting the human multi-drug-resistance Escherichia coli.

The invention belongs to the technical field of medical equipment, and mainly relates to a magnetic force traction device. The magnetic force traction device comprises an intramedullary rod which is arranged in the bone cavity and an intramedullary nail which fixes the bone and the intramedullary rod, first clamping rings and second clamping rings are arranged at both ends of the magnetic force traction device, the first clamping rings are hinged to one ends of the second clamping rings, fixed lug plates are arranged at the other ends of all the first clamping rings and the second clamping rings, connecting holes are formed in all the fixed lug plates, threaded through holes are radially formed in the outer side walls of all the first clamping rings and the second clamping rings, and are internally provided with adjusting screws, locating clamps are spherically hinged to the portions, in circular rings where the first clamping rings are located, of the adjusting screws, cylindrical guide rods and threaded guide rods with the equal outer diameter are connected to the first clamping rings at the two ends of the magnetic force traction device, and second electromagnets slidably sleevethe portion, on the cylindrical guide rods, between the second clamping rings. By means of the magnetic force traction device, the infection problem of puncturing holes is solved while the burden ofa patient is relieved, traction is convenient, and discomfort is not easily caused.

The invention provides a multilayer anti-infection high-strength artificial dura mater, which comprises three layers including a hydrophobic inner layer facing to the cerebrum, a water-soluble chitosan outer layer backing to the cerebrum and a woven type middle layer. The invention also provides a preparation method of the multilayer anti-infection high-strength artificial dura mater. The preparation method comprises the following steps of preparing the hydrophobic inner layer through electrospinning; preparing water-soluble chitosan fine strips; preparing hydrophobic fine strips; preparing the woven type middle layer; preparing the outer layer on the middle layer by an oriented electrospinning process; finally obtaining the artificial dura mater. The artificial dura mater effectively solves the problem of infection in the dura mater repair process; meanwhile, the strength of the traditional artificial dura mater is improved; free cutting can be performed according to requirements; safety and reliability are realized; the application prospects are wide.

The invention discloses a homogenizing device for plant litter. The homogenizing device comprises a sealed chamber, wherein a clear water tank is arranged at the bottom of the sealed chamber; a central main rod and homogenizing cups are arranged in the sealed chamber; multiple balancing poles are connected on the central main rod; a motor and a speed reducer are arranged at an end of each balancing pole; a rotary shaft, a cutting blade, a supporting pipe and a homogenizing cover are arranged below each balancing pole; the central main rod, the balancing poles and the supporting pipes adopt hollow structures, and rubber water pipes are arranged in the central main rod, the balancing rods and the supporting pipes; a washing pump is arranged in the clear water tank. The activity of microorganisms obtaining nutrition from the litter cannot be influenced, the exogenous infection problem of a sample is solved, and the device can be automatically washed after homogenizing.