Expandable element
4 Assignments
0 Petitions
Accused Products
Abstract
An expandable spacer, comprising: an axial tube having a surface, a proximal end and a distal end and a length, wherein, said surface defines a plurality of slits, said plurality of slits defining at least two axially displaced extensions, such that when said tube is axially compressed, said extensions extend out of said surface and define a geometry of an expanded spacer. Preferably the spacer is adapted to be inserted between two spinal vertebrae of a human.
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Citations
233 Claims
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1-119. -119. (canceled)
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120. An interspinous device for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process, the device comprising:
an expandable member having an unexpanded configuration and an expanded configuration, wherein the expandable member in an expanded configuration has a size and shape configured for positioning between and providing distraction of the first and second spinous processes. - View Dependent Claims (121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 141, 142, 143, 144, 145, 146, 147, 148)
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135. A system for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process, the system comprising:
an expandable member having an unexpanded configuration and an expanded configuration, wherein the expandable member in an expanded configuration has a size and shape configured for positioning between and providing distraction of the first and second spinous processes, wherein the expandable member has a port; and
an expansion medium fillable within the interior of the expandable member via the port.- View Dependent Claims (136, 137, 138)
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139. A kit for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process wherein a spinous ligament extends between the first and second spinous processes, the kit comprising:
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at least one expandable member having an unexpanded configuration and an expanded configuration, wherein the at least one expandable member in an expanded configuration has a size and shape configured for positioning between and providing distraction of the first and second spinous processes; and
a cannula configured for percutaneous delivery to a target site within the spinal motion segment wherein the expandable member is deliverable through the cannula when in an unexpanded configuration. - View Dependent Claims (140)
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149. A method for stabilizing at least one spinal motion segment comprising a superior vertebra and an inferior vertebra, the method comprising:
- forming an opening in the spinous ligament;
positioning an expandable member within the opening wherein the expandable member is in an unexpanded configuration; and
selectively expanding the expandable member to an expanded configuration wherein the first and second vertebrae are distracted a selected distance.
- forming an opening in the spinous ligament;
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150. An interspinous device for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process, the device comprising:
an expandable member having an unexpanded configuration and an expanded configuration, wherein the expandable member in the unexpanded configuration has a size configured for positioning between the first and second spinous process and in the expanded configuration provides distraction of the first and second spinous processes, wherein the expandable member is mechanically actuatable from the unexpanded configuration to the expanded configuration. - View Dependent Claims (151, 152, 153, 154, 155, 156, 157, 158, 159, 169, 170, 171, 172, 173, 174, 175)
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160. A system for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process, the system comprising:
- An expandable member having an unexpanded configuration and an expanded configuration, wherein the expandable member in the unexpanded configuration has a size configured for positioning between the first and second spinous process and in the expanded configuration provides distraction of the first and second spinous processes, wherein the expandable member is mechanically actuatable from the unexpanded configuration to the expanded configuration; and
means for mechanically actuating the expandable member. - View Dependent Claims (161)
- An expandable member having an unexpanded configuration and an expanded configuration, wherein the expandable member in the unexpanded configuration has a size configured for positioning between the first and second spinous process and in the expanded configuration provides distraction of the first and second spinous processes, wherein the expandable member is mechanically actuatable from the unexpanded configuration to the expanded configuration; and
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162. A method for stabilizing a vertebrae relative to another vertebrae, the method comprising:
- introducing an expandable interspinous device to laterally of an interspinous space of the vertebrae;
expanding the interspinous device; and
inserting the interspinous device within the interspinous space. - View Dependent Claims (163, 164, 165, 166, 167, 168)
- introducing an expandable interspinous device to laterally of an interspinous space of the vertebrae;
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176. An interspinous device for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process, the device comprising:
an axial dimension and a radial dimension substantially transverse to the axial dimension, wherein the axial dimension is greater when the device is in an undeployed configuration and the radially dimension is greater when the device is in a deployed configuration. - View Dependent Claims (177, 178, 179, 180, 181, 182, 183, 184, 185)
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186. An interspinous device for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process, the device comprising:
a tubular member having a length and a diameter and being deployable from a first configuration to a second configuration, wherein one of the length and the diameter of the tubular member in the first configuration is changed when the tubular member is in the second configuration. - View Dependent Claims (187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200)
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201. A device for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process, the device comprising;
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an undeployed configuration having an axial dimension and a radial dimension substantially transverse to the axial dimension; and
a deployed configuration having an axial dimension and a radial dimension substantially transverse to the axial dimension;
wherein the radial dimension of the undeployed configuration is less than the radial dimension in the deployed configuration. - View Dependent Claims (202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213)
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214. A posterior element distraction system for implantation at a spinal motion segment comprising a superior vertebra, an inferior vertebra, each vertebra comprising a posterior element comprising a spinous process, laminal portions and a set of facet joints, and further comprising an interspinous space between the spinous processes, the system comprising:
- at least one lateral member for positioning on a side of the spinal motion segment and outside the interspinous space, wherein the at least one lateral member has an unexpanded configuration and an expanded configuration; and
first and second transverse members extending transversely from the at least one lateral member, wherein when the system is operatively implanted at a spinal motion segment and the at least one lateral member is in an expanded configuration, the transverse members are caused to contact a portion of either the superior or inferior posterior elements thereby providing distraction between the superior and inferior posterior elements. - View Dependent Claims (215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227)
- at least one lateral member for positioning on a side of the spinal motion segment and outside the interspinous space, wherein the at least one lateral member has an unexpanded configuration and an expanded configuration; and
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228. A method for distracting at least a portion of a spinal motion segment comprising a superior vertebra, an inferior vertebra, each vertebra comprising a posterior element comprising a spinous process, laminal portions and a set of facet joints, and further comprising an interspinous space between the spinous processes, the method comprising:
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inserting an expandable member laterally of the spinal motion segment; and
expanding the expandable member thereby distracting the superior vertebra and the inferior vertebra relative to each other. - View Dependent Claims (229, 230, 231)
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232. A method for distracting at least a portion of a spinal motion segment comprising a superior vertebra, an inferior vertebra, each vertebra comprising a posterior element comprising a spinous process, laminal portions and a set of facet joints, and further comprising an interspinous space between the spinous processes, the method comprising:
- distracting the superior vertebra and the inferior vertebra relative to each other until a desired amount of distraction is achieved;
inserting an implantable expandable member within the interspinous space; and
expanding the implantable expandable member to contact the spinous processes thereby maintaining the distraction achieved. - View Dependent Claims (233)
- distracting the superior vertebra and the inferior vertebra relative to each other until a desired amount of distraction is achieved;
Specification