Bone replacement material with orthophosphate

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07459170

ABSTRACT:
The present invention relates to a material with orthophosphate and having a high solubility which can be used as a bioactive bone replacement material and as a substrate material in biotechnology. According to31P-NMR measurements, the new material comprises Q0-groups of orthophosphate and Q1-groups of diphosphate, the orthophosphates or Q0-groups making up 65 to 99.9% by weight relative to the total phosphorus content of the finished material and the diphosphates or Q1-groups making up 0.1 to 35% by weight relative to the total phosphorus content of the finished material, and wherein according to X-ray diffractometric measurements and relative to the total weight of the finished material, 35 to 99.9% by weight of a main crystal phase consisting of Ca10Na(PO4)7, Ca10K(PO4)7, mixtures thereof or mixed crystals according to the general formula Ca10KxNa1−x(PO4)7, where x=0 to 1, is contained in the bone replacement material and 0.1 to 25% by weight of a substance selected from the group consisting of Na2CaP2O7, K2CaP2O7, Ca2P2O7and mixtures thereof is contained as a secondary crystal phase, and the X-ray amorphous phases contained besides the main crystal phase jointly make up 0.1 to 65% by weight.

REFERENCES:
patent: 3922155 (1975-11-01), Broemer et al.
patent: 4239113 (1980-12-01), Gross et al.
patent: 6002065 (1999-12-01), Constantz et al.
patent: 6117456 (2000-09-01), Lee et al.
patent: 7223420 (2007-05-01), Berger et al.
patent: 19744809 (1999-07-01), None
patent: 0 237 043 (1992-06-01), None
patent: 0 541 546 (1994-10-01), None
patent: 91/07357 (1991-05-01), None
Derwent-ACC-No. 1999-348171 Abstracting DE 19744809C1 Jul. 1, 1999.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Bone replacement material with orthophosphate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bone replacement material with orthophosphate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bone replacement material with orthophosphate will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4052259

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.