SPINAL TISSUE DISTRACTION DEVICES
First Claim
Patent Images
1. An intravertebral implant for insertion into a vertebral body, comprising:
- a generally elongated implant having a proximal end portion and a distal end portion;
the generally elongated implant having a substantially linear insertion configuration for insertion into the vertebral body and a generally helical implanted configuration defining a vertically extending generally helical support structure that includes a plurality of vertically adjacent windings, wherein the vertically extending generally helical support structure separates and/or supports tissue of the vertebral body;
the elongated implant including a longitudinal internal passageway extending between the proximal and distal end portions for directing the flow of bone filler material therethrough, anda plurality of apertures located along an inside wall of the implant, the apertures communicating with the passageway and being open in the implanted configuration to direct the flow of bone filler into an interior of the helical support structure within the vertebral body.
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0 Petitions
Accused Products
Abstract
Spinal tissue distraction devices that include a member which has a pre-deployed configuration for insertion between tissue layers and a deployed configuration in which the member, by change of configuration, forms a support structure for separating and supporting layers of spinal tissue
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Citations
20 Claims
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1. An intravertebral implant for insertion into a vertebral body, comprising:
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a generally elongated implant having a proximal end portion and a distal end portion; the generally elongated implant having a substantially linear insertion configuration for insertion into the vertebral body and a generally helical implanted configuration defining a vertically extending generally helical support structure that includes a plurality of vertically adjacent windings, wherein the vertically extending generally helical support structure separates and/or supports tissue of the vertebral body; the elongated implant including a longitudinal internal passageway extending between the proximal and distal end portions for directing the flow of bone filler material therethrough, and a plurality of apertures located along an inside wall of the implant, the apertures communicating with the passageway and being open in the implanted configuration to direct the flow of bone filler into an interior of the helical support structure within the vertebral body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An intravertebral implant for insertion into a vertebral body, comprising:
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a generally elongated implant having a proximal end portion and a distal end portion; the generally elongated implant having a substantially linear insertion configuration for insertion into the vertebral body and a generally helical implanted configuration defining a vertically extending generally helical support structure that includes a plurality of vertically adjacent windings, wherein the vertically extending generally helical support structure separates and/or supports tissue of the vertebral body; and the generally helical support structure includes a plurality of vertically adjacent windings with at least one of the windings contacting an immediately adjacent winding, the at least one and immediately adjacent windings including contacting surfaces that are configured to resist lateral shifting between the windings, and a plurality of slots spaced apart along the implant so as to define alternating slots and intermediate members located along the implant, the slots extending through upper, lower and inside surfaces of the implant, and intermediate members being free of contact with adjacent intermediate members when the implant is in the implanted configuration. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of treating a vertebral body having a cortical rim and superior and inferior endplates defining an internal region therewithin, the method comprising:
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inserting a generally elongated intravertebral implant in a substantially linear configuration into the internal region of the vertebral body, the general elongated intravertebral implant including a plurality of open slots spaced apart along the implant, the slots extending through upper, lower and inside surfaces of the implant; forming the generally elongated intravertebral implant into a generally helical implanted configuration within the interior region of the vertebral body defining support structure that includes a plurality of vertically adjacent windings and wherein the slots of the generally elongated intravertebral implant remain open through the inside surface in the implanted configuration. - View Dependent Claims (17, 18, 19)
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20-65. -65. (canceled)
Specification