Spinal fill for disk surgery
First Claim
1. A procedure for surgically treating spinal disease of a patient, the disease being associated with a particular site at the patient'"'"'s spine, comprising the steps:
- (i) providing access to the site at the patient'"'"'s spine associated with the disease,(ii) providing a mixture of polymerizable materials comprising liquid monomer isobutylmethacrylate and powdered polyisobutylmethacrylate to form a flowable polymerizable material,(iii) applying the flowable polymerizable material to the site at the patient'"'"'s spine associated with the disease to treat the disease when hardened, the flowable material upon curing in situ forming a hardened polyisobutylmethacrylate.
1 Assignment
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Accused Products
Abstract
The invention is based on the use of polyisobutylmethacrylate instead of PMMA as an adhesive or spinal fill material for treating diseases of the spine. Polyisobutylmethacrylate has several advantages over PMMA, mainly less heat is developed during the in situ polymerization process. When using any spinal adhesive of fill material that is light activated, a tube can be used to transmit activating light to the light-activated adhesive or spinal polymerizable fill material at the surgical site. In addition, a mesh bag comprising optical fibers or similar light transmitting material can be employed to receive the injected light-activated fill, with the mesh bag, irradiated externally, for directing the light via the bag to the polymerizable fill.
68 Citations
8 Claims
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1. A procedure for surgically treating spinal disease of a patient, the disease being associated with a particular site at the patient'"'"'s spine, comprising the steps:
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(i) providing access to the site at the patient'"'"'s spine associated with the disease, (ii) providing a mixture of polymerizable materials comprising liquid monomer isobutylmethacrylate and powdered polyisobutylmethacrylate to form a flowable polymerizable material, (iii) applying the flowable polymerizable material to the site at the patient'"'"'s spine associated with the disease to treat the disease when hardened, the flowable material upon curing in situ forming a hardened polyisobutylmethacrylate. - View Dependent Claims (2, 3, 4)
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5. A procedure for surgically treating spinal disease of a patient, the disease being associated with a particular site at the patient'"'"'s spine, comprising the steps:
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(i) providing access to the site at the patient'"'"'s spine associated with the disease, (ii) applying a flowable material to the site at the patient'"'"'s spine associated with the disease to treat the disease, the flowable material comprising a mixture of polymerizable materials comprising powdered polyisobutylmethacrylate, and liquid monomer isobutylmethacrylatethe that upon being irradiated with UV radiation form a hardened acrylate, (iii) applying to the introduced flowable material through a cannula in the patient UV radiation sufficient to cure the mixture to form the hardened acrylate. - View Dependent Claims (6, 7, 8)
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Specification