Temperature-insensitive calcium phosphate cements and methods of using the same are provided. Aspects of the cements include a dry component having fine and coarse calcium phosphate particulate reactants and a setting fluid which includes a cellulose. The dry component and setting fluid may be combined over a broad temperature range to produce a flowable composition. The resultant flowable composition finds use in a variety of different applications, including the repair of hard tissue defects, e.g., bone defects such as fractures.
Rapid setting high strength calcium phosphate cements and methods of using the same are provided. Aspects of the cements include fine and coarse calcium phosphate particulate reactants and a cyclodextrin which, upon combination with a setting fluid, produce a flowable composition that rapidly sets into a high strength product. The flowable compositions find use in a variety of different applications, including the repair of hard tissue defects, e.g., bone defects such as fractures.
A61L 24/00 - Adhésifs ou ciments chirurgicauxAdhésifs pour dispositifs de colostomie
C04B 28/34 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des liants phosphate froids
A61K 47/26 - Hydrates de carbone, p. ex. polyols ou sucres alcoolisés, sucres aminés, acides nucléiques, mono-, di- ou oligosaccharidesLeurs dérivés, p. ex. polysorbates, esters d’acide gras de sorbitan ou glycyrrhizine
Methods and compositions for producing flowable compositions, e.g. pastes, that set into calcium phosphate products are provided. In the subject methods, dry reactants that include a calcium source and a phosphate source are combined with a setting fluid to produce the flowable composition. A feature of the subject methods is that the dry reactants include a particulate calcium and/or phosphate reactant having a mean particle size of less than about 8 μm and narrow size distribution. Also provided are the compositions themselves as well as kits for use in practicing the subject methods. The subject methods and compositions produced thereby find use in a variety of applications, including the repair of hard tissue defects, e.g., bone defects.
Methods for preparing a tricalcium phosphate coarse particle composition are provided. Aspects of the methods include converting an initial tricalcium phosphate particulate composition to hydroxyapatite, sintering the resultant hydroxyapatite to produce a second tricalcium phosphate composition and then mechanically manipulating the second tricalcium phosphate composition to produce a tricalcium phosphate coarse particle composition. The subject methods and compositions produced thereby find use in a variety of applications.
C04B 28/34 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des liants phosphate froids
5.
Tricalcium phosphate coarse particle compositions and methods for making the same
Methods for preparing a tricalcium phosphate coarse particle composition are provided. Aspects of the methods include converting an initial tricalcium phosphate particulate composition to hydroxyapatite, sintering the resultant hydroxyapatite to produce a second tricalcium phosphate composition and then mechanically manipulating the second tricalcium phosphate composition to produce a tricalcium phosphate coarse particle composition. The subject methods and compositions produced thereby find use in a variety of applications.
Temperature-insensitive calcium phosphate cements and methods of using the same are provided. Aspects of the cements include a dry component having fine and coarse calcium phosphate particulate reactants and a setting fluid which includes a cellulose. The dry component and setting fluid may be combined over a broad temperature range to produce a flowable composition. The resultant flowable composition finds use in a variety of different applications, including the repair of hard tissue defects, e.g., bone defects such as fractures.
Rapid setting high strength calcium phosphate cements and methods of using the same are provided. Aspects of the cements include fine and coarse calcium phosphate particulate reactants and a cyclodextrin which, upon combination with a setting fluid, produce a flowable composition that rapidly sets into a high strength product. The flowable compositions find use in a variety of different applications, including the repair of hard tissue defects, e.g., bone defects such as fractures.
C04B 28/34 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des liants phosphate froids
Methods for preparing a tricalcium phosphate coarse particle composition are provided. Aspects of the methods include converting an initial tricalcium phosphate particulate composition to hydroxyapatite, sintering the resultant hydroxyapatite to produce a second tricalcium phosphate composition and then mechanically manipulating the second tricalcium phosphate composition to produce a tricalcium phosphate coarse particle composition. The subject methods and compositions produced thereby find use in a variety of applications.
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Bone cement for medical purposes, namely, calcium phosphate cement compositions for use as bone cement. Surgical implant compositions of artificial material, namely, calcium phosphate compositions for use as implantable materials.
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Bone cement for medical purposes, namely, calcium phosphate cement compositions for use as bone cement. Surgical implant compositions of artificial material, namely, calcium phosphate compositions for use as implantable materials.
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Bone cement for medical purposes, namely, calcium phosphate cement compositions for use as bone cement. Surgical implant compositions of artificial material, namely, calcium phosphate compositions for use as implantable materials.
12.
Calcium phosphate cements comprising autologous bone
Aspects of the invention include methods for producing flowable compositions, e.g. pastes, that set into calcium phosphate containing products, where the products include autologous bone. Aspects of the invention further include compositions produced by the methods, as well as kits for preparing the same. The subject methods and compositions produced thereby find use in a variety of applications, including hard tissue repair applications.
Methods and compositions for producing flowable compositions, e.g. pastes, that set into calcium phosphate products are provided. In the subject methods, dry reactants that include a calcium source and a phosphate source are combined with a setting fluid to produce the flowable composition. A feature of the subject methods is that the dry reactants include a particulate calcium and/or phosphate reactant having a mean particle size of less than about 8 μm and narrow size distribution. Also provided are the compositions themselves as well as kits for use in practicing the subject methods. The subject methods and compositions produced thereby find use in a variety of applications, including the repair of hard tissue defects, e.g., bone defects.
Methods are provided for producing compositions, e.g. pastes or clays, which rapidly set into high-strength calcium phosphate products. In the subject methods, dry reactants that include calcium and phosphate sources, as well as a monovalent cation dihydrogen phosphate salt, are combined with a setting fluid and the combined reactants are mixed to produce the settable composition. A feature of the invention is that cements rapidly set into high strength product compositions. Also provided are the compositions themselves as well as kits for preparing the same. The subject methods and compositions produced thereby find use in a variety of applications, including hard tissue repair applications.
05 - Produits pharmaceutiques, vétérinaires et hygièniques
10 - Appareils et instruments médicaux
Produits et services
Bone cement for medical purposes, namely, calcium phosphate cement compositions for use as bone cement Surgical Implant compositions of artificial material, namely, calcium phosphate compositions for use as implantable materials
