Resorbable polymer compositions
AssigneeInion Ltd.
InventorsTimo Pohjonen, Harri Happonen, Pertti Helevirta, Auvo Kaikkonen, Jan Nieuwenhuis, Piet E. Haers, Hermann Sailer
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Abstract
A novel polymer composition is provided which includes a base material including a biodegradable polymer or copolymer, and a copolymer additive including one or more monomers imparting a tensile strength to the polymer composition at room temperature that is lower than a tensile strength at room temperature for the base material.
Claims12
A method of making implants comprising
- melt-blending a mixture of a base material and a copolymer additive to form a melt-blended mixture,
- forming an implant from the melt-blended mixture, wherein the implant has a tensile strength at room temperature that is lower than a tensile strength at room temperature for an implant formed from the base material excluding the copolymer additive.
An implant formed from a melt-blended polymer composition comprising:
- a base material including a biodegradable polymer or copolymer, and
- a copolymer additive including one or more monomers imparting a tensile strength for the implant at room temperature that is lower than a tensile strength at room temperature for an implant formed from the base material excluding the copolymer additive.
A method of making implants comprising
- melt-blending a mixture of a base material and a copolymer additive to form a melt-blended mixture,
- forming an implant from the melt-blended mixture, wherein the implant has a glass transition temperature at room temperature that is lower than a glass transition temperature for an implant formed from the base material excluding the copolymer additive.
A method of recovering initial tensile strength of an implant comprising
- melt-blending a mixture of a base material and a copolymer additive to form a melt-blended mixture,
- forming an implant from the melt-blended mixture,
- allowing the tensile strength of the implant to increase, and
- heating the implant in a manner to decrease the tensile strength of the implant for a time period greater than a few minutes.
A medical implant comprising melt-blended polymer composition comprising:
- a base material including a biodegradable polymer or copolymer, and
- a copolymer additive including one or more monomers imparting a tensile strength for the melt-blended polymer composition at room temperature that is lower than a tensile strength at room temperature for the base material.
Dependencies are inferred from the claim text.