3 results about "Premature failure" patented technology

The application discloses a semi-absorbing patch with gradient degradation regulation function, which comprises a main body, wherein the main body is a pre-prepared net structure, and the main body comprises a base net and a supporting section, two transition sections and two anchoring sections formed on the base net; the supporting section is located in the middle of the base net, and positioning areas for limiting the deviation of the main body are formed on both sides of the supporting section; the application is characterized in that the symmetrically decreasing gradient degradation makes the degradation rate of the patch more matched with the tissue regeneration rate, and the patch and the new tissue realize stable symbiosis in the form of semi-absorption; the supporting section is rapidly degraded, and the anchoring section still maintains mechanical strength, so that the stress is smoothly transferred from the patch to the new tissue, imbalance caused by uniform degradation rate is avoided, and insufficient support caused by premature failure of the degradable material is prevented; and the patch can also be customized according to the needs of different groups of people, so that the differentiated needs of different groups of people for the patch specifications are better met.

The invention provides an application of a methoxy isoflavone compound in prevention and treatment of premature ovarian failure. A large number of studies find that the biochanin A and formononetin can effectively improve ovarian reserve function decline or estrus cycle disorder caused by premature senility, adjust the estrogen level, promote follicle development and maturity, increase the ovarian index, increase ovarian reserve and recover the ovarian function. Meanwhile, the biochanin A and the formononetin have the advantages of good stability, high biological activity and low toxicity, can be safely used for preparing medicines for preventing or / and treating ovarian reserve hypofunction and premature senility, and have good patent medicine prospects.

The utility model provides a clamp for a compression test of a composite material tabulate test piece, which comprises an upper pressing assembly and a lower pressing assembly, the upper pressing assembly comprises a first upper clamping plate, a second upper clamping plate and an upper pressing plate, and the upper pressing plate is connected to the upper parts of the first upper clamping plate and the second upper clamping plate; the lower pressing assembly comprises a first lower clamping plate, a second lower clamping plate and a lower pressing plate, the lower pressing plate is connected to the lower portions of the first lower clamping plate and the second lower clamping plate, and the sizes of the first upper clamping plate, the second upper clamping plate and the upper pressing plate in the first direction parallel to the width direction of the test piece are larger than the width of the test piece; the sizes of the first lower clamping plate, the second lower clamping plate and the lower pressing plate in the first direction are greater than the width of the test piece. According to the scheme, a transverse deformation space can be reserved for the end part of the test piece when the test piece is subjected to a compression test, and free deformation of the test piece is allowed, so that stress concentration of an interface of the test piece and the clamp can be reduced, and test failure caused by advanced damage of the test piece is avoided.