Continuous phase composite for musculoskeletal repair
First Claim
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1. A resorbable implant, comprising a member including a composite formed of:
- a first material comprising a first resorbable material operable to be resorbed into an anatomy, the first material forming a scaffold having a plurality of pores and a plurality of continuous channels defined at least in part by a first sub-plurality of the plurality of pores, the plurality of channels extending through the scaffold; and
a second material that is a resorbable polymer injected into the scaffold to substantially fill at least a sub-plurality of the plurality of continuous channels so that the polymer forms a continuous structure;
wherein the second material is a polymer selected from the group comprising polylactic acids, polyglycolic acids, and combinations thereof, and forms about 55 wt % to about 65 wt % of the member;
wherein the resorbable polymer is resorbed at a rate slower than a rate of resorption of the scaffold such that the resorbable polymer defines a support for bony ingrowth to maintain a selected strength of the member for a predetermined time period.
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Abstract
A composite material for positioning in the anatomy to form a selected function therein. The composite may be resorbable over a selected period of time. The composite may allow for selected bone ingrowth as absorption of the composite occurs.
133 Citations
16 Claims
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1. A resorbable implant, comprising a member including a composite formed of:
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a first material comprising a first resorbable material operable to be resorbed into an anatomy, the first material forming a scaffold having a plurality of pores and a plurality of continuous channels defined at least in part by a first sub-plurality of the plurality of pores, the plurality of channels extending through the scaffold; and a second material that is a resorbable polymer injected into the scaffold to substantially fill at least a sub-plurality of the plurality of continuous channels so that the polymer forms a continuous structure; wherein the second material is a polymer selected from the group comprising polylactic acids, polyglycolic acids, and combinations thereof, and forms about 55 wt % to about 65 wt % of the member; wherein the resorbable polymer is resorbed at a rate slower than a rate of resorption of the scaffold such that the resorbable polymer defines a support for bony ingrowth to maintain a selected strength of the member for a predetermined time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A resorbable implant, comprising a member including a composite formed of:
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a scaffold of a first material having a plurality of pores in a surface of the scaffold and a plurality of continuous channels interconnecting at least a first sub-plurality of the plurality of pores, wherein the plurality of continuous channels extend through the scaffold between at least two pores of the plurality of pores; and a resorbable polymer to substantially fill at least a sub-plurality of the plurality of continuous channels so that the polymer forms a continuous structure within the scaffold; wherein the resorbable polymer is resorbed at a rate slower than a rate of resorption of the scaffold such that the resorbable polymer defines a support for bony ingrowth to maintain a selected strength of the member. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification