Biomedical material including tube-like biodegradeable nety works filled with hydroxylapatite

A biomedical material comprising:

• a flexible meshed tube having an outer diameter ranging from 50 mm to 10 mm and formed of a porous woven sheet of fibers having a particular shape which are biodegradable and capable of maintaining their shape within a time period ranging from 1 week to 30 weeks in an organism;
• and
• porous hydroxylapatite beads loosely filled in said meshed tube to permit free circulation of blood through the meshed tube and between said porous hydroxylapatite beads to promote osteoconduction, each of said porous hydroxylapatite beads having a plurality of pores connected to one another to form a network, each of said pores having a diameter ranging from 1 to 10 mm and a length larger than the pore diameter, each of said porous hydroxylapatite beads having a porosity ranging from 10 to 50%, said porous hydroxylapatite beads being produced by mixing hydroxylapatite powder having particle sizes not larger than 125 mm and in an amount ranging from 40 to 90% by weight with synthetic resin powder having particle sizes not larger than 74 mm and in an amount ranging from 5 to 55% by weight, and resinous binder in an amount ranging from 0.5 to 5% by weight to obtain a mixture;
• granulating said mixture to form beads each having a diameter ranging from 0.2 to 300 um;
• and firing said beads at a temperature ranging from 750.degree. C. to 1150.degree. C.