45 results about "Atresia" patented technology

A medical system for approximating the esophageal sacs in an infant afflicted with esophageal atresia. The medical device includes an esophageal catheter and a gastric catheter. The distal end of the esophageal catheter, which includes a magnetic tip, is passed through the esophagus to the upper esophageal sac. The distal end of the gastric catheter, which also includes a magnetic tip, is passed through a gastrostomy and into the lower esophageal sac. The magnetic forces created by both magnets results in approximation of the esophageal sacs. Pressure-induced necrosis establishes a passageway between the esophageal sacs. A stent or stent-graft can be deployed within the established passageway to prevent re-stenosis of the esophagus.

The invention discloses a small rkatsiteli fryer three-line matched seed production method, which comprises the following steps: (1) hybride the egg-type Rhode Island red male parent with the Rhode Island white female parent and raise by atresia pedigree to select the individuals that have fast feather and silver feather as the first female parent, and the genotype is shown in the description male Z(ks)Z(ks), female Z(ks)W; (2) take domestic or local kind as the material and raise by atresia pedigree to form a first male parent that has a slow feather and takes the gold feather gene, wherein the genotype is shown in the description male Z(Ks)Z(Ks), female Z(Ks)W; (3) takes the introduced fast-feather rkatsiteli broiler breeder as the final male parent that is shown in the description male Z(k)Z(k), female Z(k)W; (4) hybride the first male parent and the first female parent to generate F1 generation hen, then hybride the F1 generation hen with the final male parent to get the small rkatsiteli fryer. The small rkatsiteli fryer parents generation chicken can provide a lot chicks in low cost, and the goods generation chicken have a strong disease resistance and a significant integrated benefit.

A system and a method for joining an upper and lower esophageal sacs in an infant are provided. The system includes a first elongate member having a first magnet, the first magnet including an end portion configured to abut an interior surface of the upper esophageal sac. The system also includes a second elongate member having a second magnet, the second magnet including an end portion configured to abut an interior surface of the lower esophageal sac. The system further includes a third elongate member having a third magnet and a spacer positioned distal to the third magnet. The third elongate member is positionable in the upper esophageal sac after the first elongate member has been removed. A magnetic force between the first magnet and the second magnet is configured to pull the first magnet and the second magnet towards each other to lengthen the upper and lower esophageal sacs.

The invention provides a high-production-performance black meat rabbit new strain breeding method. The breeding method comprises the steps that firstly, local male black rabbits are mated with femalewhite meat rabbits to obtain an F1 generation; the black male rabbits in the F1 generation are selected for backcrossing with the female white meat rabbits to obtain an F2 generation; the black male rabbits in the F2 generation are selected for backcrossing with the female white meat rabbits again to obtain an F3 generation; the black rabbits in the F3 generation are selected for crossing to generate an F4 generation; black male and female rabbits in the F4 generation are selected for gene identification, and homozygotic black male and female rabbits are selected to form a basic group; the basic group is subjected to atresia subculture to breed 3-4 generations, and a high-production-performance black meat rabbit new strain consistent in body shape and appearance can be bred. According to the black meat rabbit new strain bred through the breeding method, in the pure breeding and hybrid production process, it can be ensured that the hair colors of commercial generation rabbits are consistent. Meanwhile, the production performance and uniformity are relatively high, and the method is suitable for modern meat rabbit matching production.

The invention discloses an improved method of MMC direct voltage protection and belongs to the high-voltage direct current power transmission technology field. Through increasing an alternating voltage as an atresia criterion of direct voltage protection, the improved method of MMC direct voltage protection, which can be used to solve a direct current protection misoperation accident, is realized.The method comprises the following steps of through carrying out qualitative analysis on a MMC-HVDC system mathematic model, determining the atresia criterion of the direct voltage protection; determining an alternating voltage setting value Uac_set in the direct voltage protection; and improving the direct voltage protection. Based on a condition of deepening MMC-HVDC mathematical modeling, direct current protection configuration when the MMC-HVDC alternating current system has a fault is further studied, and an obvious engineering application value and practical significance are possessed.

The invention relates to poultry breeding, in particular to a method for establishing a Bian chicken quick-grow type AA strain and slow-grow type GG strain colony. In a seventh Bian chicken colony of hemp-feather single-comb strain bred in an atresia colony family, the function locus where the myostatin (MSTN) gene affects muscle growing of Bian chickens is determined, the PCR-RFLP technology is used for detecting the genotype of the G2283A locus of the MSTN gene, a male chicken colony and a female chicken colony with the quick-grow genotype (AA) and the slow-grow genotype (GG) are selected for breeding, and the quick-grow type (AA) strain and slow-grow type (GG) strain colony is cultured. The average weights of male chickens and female chickens of 6 years, 8 years, 10 years, 12 years, 14 years and 16 years of the quick-grow type (AA) strain are obviously about 10% higher than those of the male chickens and female chickens of the same period of the slow-grow type (GG) strain.

The invention relates to a breeding method of a black meat rabbit three-line complete set line. The breeding method comprises the steps that with Hyplus meat rabbit complete set line progenitor breeding rabbits and parent-generation breeding rabbits which are imported from foreign countries as experiment targets, through backcross, secondary backcross, self-reproduction and atresia continuous progeny selection, a specialized dam line I line and a specialized dam line II line are obtained; specialized dam line I line male rabbits and specialized dam line II line female rabbits are hybridized toproduce parent-generation female rabbits; black champagne rabbits are selected for atresia continuous progeny selection to obtain a specialized sire line VII line; specialized sire line VII line malerabbits and the parent-generation female rabbits are hybridized to produce goods-generation meat rabbits of the black meat rabbit three-line complete set line. By means of the breeding method, the black meat rabbit three-line complete set line with high production performance, great hybrid vigor and high adaptability can be obtained.

The invention dislcoses application of crocetin in preparation of a drug or a health care product for preventing and treating polycystic ovarian syndrome. On the basis of the existing effects of the crocetin, a foetal period dihydrotestosterone-induced polycystic ovarian syndrome mouse model is adopted to deeply research therapeutic action of the crocetin. Results show that the crocetin can remarkably relieve estrous cycle dysrhythmia of a polycystic ovarian syndrome model mouse, reduce ovary weight and an atresia ovary amount, increasing amounts of corpora lutea big antral follicles and follicles before ovulation, and remarkably improve levels of estradiol, luteinizing hormone, follicle-stimulating hormone, progesterone and testosterone of the polycystic ovarian syndrome model mouse, andhas a good effect of treating the polycystic ovarian syndrome. Moreover, in an experiment process, obviously untoward effects do not appear, and the safety is high.

The claimed invention is a pressure and pain relieving prosthetic device, for the ear, to be used with a standard pillow, as a sleep aid, for persons suffering with Chondrodermatitis nodularis chronic helicis, CNH, and, or, Atresia and Microtia-anotia conditions of the ear. Invention is comprised of contiguous foam strips, curved into a teardrop shape, covered in cylindrical nylon spandex, with the ends sewn together, to form a donut shape, then affixed with a head strap. Device is lightweight, yet strong enough to support a head. Device protects, and isolates an ear injury, and permits faster healing. Device allows patients to sleep on their preferred side, without pain.

The invention discloses a pharmaceutical composition for warming kidney and tonifying yang. The pharmaceutical composition is prepared from the following raw material medicines in parts by mass of 7-13 parts of herba epimedii, 7-13 parts of rhizoma drynariae and 7-13 parts of herba cistanche. The kidney warming and yang tonifying compound can improve the uterus microenvironment from the aspects of serum sex hormone, endometrial thickness and gland function, female progestational hormone receptor expression, uterus microvessel density, uterus local area factors and the like, can also improve the ovum function, enhance ovarian reserve, promote oocyte maturation and inhibit cell excessive apoptosis, the occurrence of abnormal ova and atresia follicles is reduced, the positive improvement effect on Chong and Ren deficiency reproductive disorder is achieved, and the pregnancy outcome is changed.

The invention relates to a nasal cavity scalpel, in particular to a nasal cavity scalpel for cutting the lacrimal sac of the nasal cavity, and belongs to the technical field of medical instruments. The endoscopic nasal cavity dacryocystectomy scalpel comprises a knife handle 1 and a knife head 2 mounted on one end of the knife handle 1. The knife head 2 is sickle-shaped and curved to the coronal plane. There are 3 knife points on the knife head 2 Upturned in the sagittal plane. The scalpel can cut any point on the inner wall of the lacrimal sac without damaging the outer wall of the lacrimal sac when cutting the inner wall of the lacrimal sac. It can also cooperate with the uncinate sickle knife to cut out the ideal shape of the lacrimal sac mucosal flap, open a large lacrimal sac nasal cavity, and effectively flip the mucosal flap, which is beneficial to prevent stoma atresia or stenosis, and greatly improve the lacrimal sac lacrimal sac in nasal endoscopy. Ostomy success rate.

The present invention provides a method for inducing twin calving. The method according to the present invention comprises firstly treatment to inducing atresia of the antral follicles on ovary so as to initiate the development of new follicular wave, inducing the development of codominant follicles and further achieving double ovulations by exactly controlling the dosage and time points of hormone injections, and performing artificial insemination to induce the cow to deliver twin calves. The method according to the present invention has relative independent on the technical skills, and a person skilled in the art or a common worker can practice it according to specified operation methods; and during practical application, it does not require special equipment, thus saving cost, as well as improving the social benefit and economic benefit of cow breeding.

The invention discloses application of a preparation for regulating and controlling the expression quantity of HSP90B1 in preparation of a medicine for preventing or treating polycystic ovarian syndrome. Through the development of the research, HSP90B1 participates in PCOS ovarian granular cell proliferation, so that the apoptosis of granular cells in follicles is reduced, the imbalance of proliferation and apoptosis is caused, sinus follicle atresia is reduced, and polycystic change and ovulation disorder in ovaries are caused, HSP90B1 possibly participates in the pathologic mechanism of PCOS generation and development, and HSP90B1 is likely to become a drug target of PCOS (polycaprolactone).

The invention relates to the technical field of medical instruments, and discloses an esophagus closing device which comprises an upper extending head, a lower extending head, a sleeve, a pull rope, a fistulization seat and a pull rope adjusting unit, the sleeve is installed between the lower extending head and the pull rope adjusting unit, and the pull rope adjusting unit comprises a base, a rotary knob and a take-up column; the base is connected with the fistulization seat, the knob is arranged on the base, the take-up column is arranged in the knob in a rotating mode, the upper end of the sleeve is connected with the base, the lower end of the sleeve is connected with the lower extending head, the pull rope penetrates through the sleeve, the upper end of the pull rope is fixedly connected with the take-up column, and the lower end of the pull rope is fixedly connected with the upper extending head. The upper extension head and the lower extension head are respectively provided with an upper involution inclined surface and a lower involution inclined surface, and when the upper extension head and the lower extension head are jointed, the upper involution inclined surface is matched with the lower involution inclined surface. Growth of the esophageal blind end of the esophageal atresia is accelerated, and meanwhile the sectional area and the perimeter of the joint of the esophagus are increased.

The present invention relates to a medicine for treating renal failure, which is characterized in that the medicine consists of raw materials as follows: 5-100 parts by weight of snakegourd, 50-1000 parts by weight of wick, 20-1500 parts by weight of red fushen, 10-100 parts by weight of shanzhizi, 10-100 parts by weight of white peony, 10-100 parts by weight of angelica. The medicine has the effect of treating renal failure, saving renal with calculous, through sanjiao, changing to precious, separating qing and zhuo, removing blood stasis and restoring deficiency syndrome, diminishing inflammation and discharging fire, clearing away damp-heat, eliminating feeling of repletion, conducing relieving oneself, removing tibial medium pain, regulating yin-yang, cleaning source etc. The medicinehas the obvious curative effect in treating bladder heat accumulate, gonorrhoea atresia, liquid channel atresia, astringent heat pain, and is used for removing smear, bean juice, residual urine, red acerbity, white urine, blood urine and pain, heat hematochezia, renal failure, sanjiao arthralgia due to stagnation of qi and nephritis etc.

The invention provides a congenital digestive-tract atresia anastomosis magnetizing device, an operation method and an application thereof. The device comprises an operating table, magnetizing devices, a magnetic field measuring device, anastomosis blocks, a radar range finder, and a control end, and the magnetic devices are connected with the control end, which comprises a magnetic device I fixedon the ground and installed around the operation table and a magnetic device II installed on the anastomosis block. The magnetizing device I comprises a large coil, the anastomosis block is a cylindrical metal block, a middle portion is provided with a through hole, the anastomosis blocks comprises a first anastomosis block and a second anastomosis block, the radar range finder is disposed on oneof the anastomosis blocks, the magnetic device II comprises a small coil, the small coil is wound on one of the anastomosis blocks, and the front surface of the operation table is provided with a groove. The magnetic field measuring device includes a measurement probe that is embedded in a recess of the operating table. The device utilizes the method of applying a magnetic field to treat the patient with congenital digestive-tract atresia, shortens the time of surgical treatment, reduces the trauma and pain of the patient, and improves the quality of life of the patient after surgery.

The invention discloses a method for making a bear autogenous tissue drainage catheter and artificial longitudinal type ruga bile taking. The method comprising the following: a step of abdomen opening, which is to make a longitudinal type ruga closed pouch at the bottom of a gallbladder; a drainage catheter is made by means of a jejunum or a gallbladder tissue; the catheter is matched with or connected with the gallbladder and then is straightened up; and an extracutaneous drainage opening is made. The longitudinal type ruga is made through adopting a suture method or a knotting method with the ruga number reaching to three to six, and rugae are even and tightly closed after ruga making, thereby solving the problem of bile leakage after an operation; moreover, the method is convenient for inserting a pipe to take bile, and the bile taking time is only 1 to 1.5 minutes; bile taking can be carried out twice every day without the occurrence of stricture or atresia of the drainage opening and the drainage catheter, thereby ensuring stronger anti-infection immunizing power and repairing capacity.