Patent ID: 9131965
Filing Date: 2015-09-15
Classification: A61B,A61F

Abstract:
1. A swellable, resilient self-retaining interspinous implant which comprises a fluid absorbing polymer which expands from a substantially dehydrated compact first configuration having from about 12% to about 30% water by weight of the implant to an expanded second configuration upon absorption of fluid and which is dimensioned and configured to fit between two spinous processes of adjacent vertebrae, such that when the implant is in the first configuration the implant includes a first retainer end portion having a three dimensional cone shape and an oppositely disposed second retainer end portion which are connected by a centrally disposed transverse cross member, the cross member having a smaller cross-section than the end portions, and when the implant is in the second expanded configuration the first retainer end portion is expanded, the oppositely disposed second retainer end portion is expanded and the centrally disposed transverse cross member is expanded, the first and second retainer end portions being dimensioned and configured to frictionally engage the spinous processes at their respective outer sagittal faces when in the first and second configurations.