Devices for injecting a curable biomaterial into a intervertebral space
First Claim
1. A vented needle for use in sealably injecting biomaterial into an intradiscal space interiorly of the annulus of a spinal disc and for providing an exhaust for said intradiscal space, comprising:
- a seal body having a compressible portion capable of deforming upon placement under pressure against an outer surface of the annulus of the spinal disc;
a needle extending through said seal, said needle having a distal end projecting from one surface of said seal body and having an opening thereat for passage of biomaterial therefrom into said intradiscal space, said needle having a proximal end projecting from an opposite surface of said seal body and configured for receipt of said biomaterial; and
a vent extending through said seal, said vent having an opening adjacent said one surface of said seal body for communication with said intradiscal space and an opening adjacent the opposite surface of said seal body for the discharge of excess biomaterial filling said intradiscal space.
3 Assignments
0 Petitions
Accused Products
Abstract
A vented needle is provided for use in sealably injecting biomaterial into an intradiscal space interiorly of the annulus of a spinal disc and for providing an exhaust for the intradiscal space. The vented needle comprises a compressible seal body for pressing against an outer surface of the annulus, and a needle extending through the seal. The needle may be configured to connect to a syringe for pressure injection of the biomaterial into the needle. The seal includes a vent extending therethrough the seal with an opening for communication with the intradiscal space and an opening for the discharge of excess biomaterial filling the intradiscal space. A kit of parts is also provided for use in the treatment of a spinal disc, the kit comprising the vented needle and an inflatable trial device. The trial device is adapted to be removably introduced into the intradiscal space and inflated therein with a medium capable of determining the size of said intradiscal space created by the removal of at least a portion of said nucleus pulposus.
270 Citations
30 Claims
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1. A vented needle for use in sealably injecting biomaterial into an intradiscal space interiorly of the annulus of a spinal disc and for providing an exhaust for said intradiscal space, comprising:
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a seal body having a compressible portion capable of deforming upon placement under pressure against an outer surface of the annulus of the spinal disc;
a needle extending through said seal, said needle having a distal end projecting from one surface of said seal body and having an opening thereat for passage of biomaterial therefrom into said intradiscal space, said needle having a proximal end projecting from an opposite surface of said seal body and configured for receipt of said biomaterial; and
a vent extending through said seal, said vent having an opening adjacent said one surface of said seal body for communication with said intradiscal space and an opening adjacent the opposite surface of said seal body for the discharge of excess biomaterial filling said intradiscal space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A vented needle for use in sealably injecting biomaterial into an intradiscal space interiorly of the annulus of a spinal disc and for providing an exhaust for said intradiscal space, comprising:
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a seal body of generally cylindrical configuration having a compressible sealing face on one surface for sealably pressing against said annulus and an opposite surface facing away from said annulus;
a boss projecting from said one surface and configured for receipt into an access opening extending through said annulus of said spinal disc;
a needle extending axially through said boss, said needle having a distal end having an opening for communication with said intradiscal space for passage of biomaterial thereto, said needle having a proximal end projecting from said opposite surface of said seal body and configured for receipt of said biomaterial; and
a vent tube extending axially through said seal body, said vent tube having a distal end projecting from said one surface of said seal body and having an opening for communication with said intradiscal space, said vent tube having a proximal end projecting from said opposite surface of said seal body and having an opening thereat capable of communicating with the air outside said spinal disc. - View Dependent Claims (20)
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21. A kit of parts for use in the treatment of a damaged or diseased spinal disc between two opposing vertebral bodies, the disc having an inner nucleus pulposus and an outer annulus, the kit comprising:
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a needle assembly including a seal body and a needle extending therethrough, said seal body having a compressible portion and adapted to be compressibly placed against the exterior surface of said annulus adjacent an opening formed through said annulus, said needle having a distal portion projecting from said seal body and adapted to be inserted into said annulus opening in communication with said intradiscal space, said needle having a proximal portion projecting from said seal body and adapted to receive biomaterial thereinto; and
an inflatable trial device adapted to be removably introduced into said intradiscal space and inflated therein with a medium capable of determining the size of said intradiscal space created by the removal of at least a portion of said nucleus pulposus. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification