Method and apparatus for treating bone fractures, and/or for fortifying and/or augmenting bone, including the provision and use of composite implants
Inventors
D'Agostino, Jeffrey A. • Carter, Andrew J. • Watterson, Arthur • Lane, Joseph P.
Assignees
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Publication Number
US-11291483-B2
Publication Date
2022-04-05
Expiration Date
Abstract
A composite implant comprising a bioabsorbable matrix material, an outer sheath of a textile comprising filaments; and a plurality of flexible reinforcing rods held together by the outer sheath; each of the flexible reinforcing rods have a plurality of filaments, and the filaments of the textile and the flexible reinforcing rods include a degradable or resorbable glass. Preferably, the filaments are present in the composite implant in an amount of 20 volume percent to 95 volume percent, based on the total volume of the composite implant.
Core Innovation
The invention relates to a composite implant that includes a bioabsorbable matrix material in a non-flowable state, an outer sheath of a textile comprising filaments, and a plurality of flexible reinforcing rods held together by the outer sheath. Each flexible reinforcing rod includes a plurality of filaments, and the filaments of the textile and the flexible reinforcing rods include a degradable or resorbable glass.
The filaments of the textile have a different orientation than an orientation of the flexible reinforcing rods. The composite implant also includes a guide wire parallel to and positioned near a central axis of the composite implant, with the guide wire being optional in one independent claim and required in another.
The amount of reinforcing rods in the composite implant is 20 volume percent to 95 volume percent, based on the total volume of the composite implant. The description indicates that reinforcement design can be customized, including variation of length and cross-section and variable stiffness along the length.
Claims Coverage
The document includes two independent claims. Together they recite a composite implant with a bioabsorbable matrix, a textile outer sheath of filaments, flexible reinforcing rods held by the sheath, degradable or resorbable glass in the filaments, differing fiber orientations, and a guide wire; one claim also recites a 20 volume percent to 95 volume percent reinforcing rod amount.
Bioabsorbable matrix with non-flowable state and degradable or resorbable glass filaments
A composite implant comprising a bioabsorbable matrix material in a non-flowable state; an outer sheath of a textile comprising filaments; a plurality of flexible reinforcing rods held together by the outer sheath; wherein each flexible reinforcing rod has a plurality of filaments; and wherein the filaments of the textile and the flexible reinforcing rods include a degradable or resorbable glass.
Textile and rod filaments with different orientations
A composite implant wherein the filaments of the textile have a different orientation than an orientation of the flexible reinforcing rods.
Guide wire parallel to a central axis
A composite implant including a guide wire parallel to and positioned near a central axis of the composite implant, with the guide wire optional in one independent claim and required in another.
Reinforcing rod volume percent constraint
A composite implant wherein an amount of reinforcing rods is 20 volume percent to 95 volume percent, based on the total volume of the composite implant.
The inventive coverage centers on a composite implant formed from a bioabsorbable non-flowable matrix, a textile outer sheath, flexible reinforcing rods with multiple filaments, and degradable or resorbable glass in both textile filaments and rod filaments, with differing fiber orientations and a guide wire, and with one claim additionally limiting the reinforcing rod volume percent.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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