STABILIZATION OF VERTEBRAL BODIES WITH BONE PARTICLE SLURRY
First Claim
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1. A surgical kit comprising:
- a cannula configured for accessing the interior portion of a human vertebral body;
a slurry of bone particles;
a slurry pump configured to force at least some of the slurry of bone particles down the cannula and into the interior portion of the vertebral body.
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Abstract
A medical implant comprises a slurry of bone particles that are injected into a vertebral body under pressure. The liquid component of the slurry may be aspirated while the slurry is being injected so that the bone particles of the slurry pack into the central area of the vertebral body to provide structural support. The injected slurry may be agitated during the procedure to maximize the structural strength of the implant after the procedure.
1 Citation
25 Claims
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1. A surgical kit comprising:
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a cannula configured for accessing the interior portion of a human vertebral body; a slurry of bone particles; a slurry pump configured to force at least some of the slurry of bone particles down the cannula and into the interior portion of the vertebral body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of structurally supporting a vertebral body comprising:
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forming one or more openings to a central portion of a vertebral body and placing a cannula through a first opening of the one or more openings; injecting a slurry of bone particles through the cannula; pressurizing the slurry during and/or after the injecting to force bone particles of the slurry into direct contact with bone tissue inside the vertebral body. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A medical implant for use in structurally supporting vertebral bodies, the implant comprising a slurry of bone particles, wherein the slurry comprises 30% to 85% bone by mass, wherein at least 90% of the bone particles have a characteristic size of 1 micrometer to 1000 micrometers, wherein the bone particles include at least two populations of bone particles having different mean characteristic sizes, each population comprising at least 10% by mass of the bone particles, and wherein the particle size distribution has a uniformity coefficient D60/D10 of at least 2.
Specification