Resorbable surgical cements
OwnerSung-Tsuen Liuinventor
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Abstract
A new surgical cement is disclosed. This surgical cement comprises a hardened cement formed from a mixture comprising a cementing component selected from the group consisting of calcium components having a solubility in water at 25.degree. C. in the range of about 0.5 .times. 10.sup.-2 M to about 20 .times. 10.sup.-2 M and mixtures thereof; a setting component selected from the group consisting of water soluble salts of polyfunctional carboxylic acids containing 2 to about 10 carbon atoms, water soluble dibasic phosphate salts and mixtures thereof; and water in an amount effective to form a paste from the mixture which paste hardens into said hardened cement which is biocompatible.
Claims20
A surgical cement for use in medical applications such as orthopedic and maxillofacial surgeries and dental applications comprising a hardened cement formed from a mixture comprising a cementing component selected from the group consisting of calcium sulfate-containing components, calcium succinate, calcium malate, calcium malonate, calcium maleate, hydrates thereof and mixtures thereof, said cementing component having a solubility in water at 25.degree. C. in the range of about 0.5.times.10.sup.-2 M to about 20.times.10.sup.-2 M;
- a setting component selected from the group consisting of water soluble, neutral salts of polyfunctional carboxylic acids containing 2 to about 10 carbon atoms, water soluble dibasic phosphate salts and mixtures thereof;
- and water in an amount effective to form a paste from said mixture which paste hardens into said hardened cement which is biocompatible, provided that the weight ratio of said cementing component to said setting component in said mixture is in the range of about 1:1 to about 5:1.
Dependencies are inferred from the claim text.