摘要:
A three-dimensional solid support for the in vitro cultivation of cells consists essentially of porous polycrystalline aragonite in the form of a cylinder, sphere or plate. The support may be used to successively grow layers of different cells on the support, and is particularly useful for cultivating endothelial cells, fibroblasts and bone marrow cells.
摘要:
Bioresorbable bone prosthesis material containing particles of calcium carbonate, originating, for example, from coral skeleton, dispersed within a polymer matrix, the said particles being smaller than 1 mm in size and representing from 40 to 70% of the total weight, and the said polymer being a bioresorbable polymer.
摘要:
Osteosynthesis parts are made of an absorbable polymer composition consisting of a matrix of lactic acid homopolymer, or a copolymer very high in lactic acid units, having discrete reinforcement elements embedded therein. The reinforcement elements are made of glycolic acid homopolymer or copolymers predominant in glycolic acid units. Such a composition may be shaped with a minimum of polymer degradation into osteosynthesis parts exhibiting good resilience, shock resistance, and tensile strength.