Minimally invasive spine augmentation and stabilization system and method
First Claim
1. A system configured to augment a vertebral body, the system comprising:
- an expandable containment device that defines an interior device cavity, and further defines a leading end with respect to a direction of insertion of the expandable containment device into the vertebral body, and a trailing end that is opposite the leading end and spaced from the leading end substantially along a first direction;
a chassis that defines an interior chassis cavity that is configured to at least partially receive the expandable containment device;
a cannula that defines a proximal cannula end, a distal cannula end opposite the proximal cannula end, and a cannula passageway that extends between the proximal cannula end and the distal cannula end;
a guidewire sized to be received in the cannula passageway and having distal guidewire end portion, wherein moving the distal guidewire end portion from inside the cannula to outside the cannula causes the distal guidewire end portion to change shape such that the distal guidewire end portion generally extends laterally across the vertebral body when the distal guidewire end portion is disposed inside the vertebral body; and
a sleeve that defines a sleeve passageway, the sleeve sized and configured to be inserted into the cannula passageway, the sleeve configured to be detachably coupled to the chassis such that filler material can be introduced through the sleeve passageway-and into the interior device cavity to expand the expandable containment device along a second direction that is substantially perpendicular to the first direction when the expandable containment device is at least partially disposed in the interior chassis cavity, thereby causing at least a portion of the expandable containment device to be outwardly disposed with respect to the chassis along the second direction.
7 Assignments
0 Petitions
Accused Products
Abstract
A minimally invasive system and method for vertebral body augmentation includes an expandable containment device, a chassis including an interior cavity for at least partially enclosing the expandable containment device, a first guidewire, a working cannula, a second guidewire having at least a partially flexible distal end portion and a sleeve for introducing bone filler material through a cannulated passageway of the sleeve and into an interior cavity of the containment device. The containment device preferably includes a plurality of pores for directing the outflow of bone filler material anteriorly within the vertebral body. The containment device and chassis are left interior to the vertebral body subsequent to height restoration and augmentation of the vertebral body.
150 Citations
27 Claims
-
1. A system configured to augment a vertebral body, the system comprising:
-
an expandable containment device that defines an interior device cavity, and further defines a leading end with respect to a direction of insertion of the expandable containment device into the vertebral body, and a trailing end that is opposite the leading end and spaced from the leading end substantially along a first direction; a chassis that defines an interior chassis cavity that is configured to at least partially receive the expandable containment device; a cannula that defines a proximal cannula end, a distal cannula end opposite the proximal cannula end, and a cannula passageway that extends between the proximal cannula end and the distal cannula end; a guidewire sized to be received in the cannula passageway and having distal guidewire end portion, wherein moving the distal guidewire end portion from inside the cannula to outside the cannula causes the distal guidewire end portion to change shape such that the distal guidewire end portion generally extends laterally across the vertebral body when the distal guidewire end portion is disposed inside the vertebral body; and a sleeve that defines a sleeve passageway, the sleeve sized and configured to be inserted into the cannula passageway, the sleeve configured to be detachably coupled to the chassis such that filler material can be introduced through the sleeve passageway-and into the interior device cavity to expand the expandable containment device along a second direction that is substantially perpendicular to the first direction when the expandable containment device is at least partially disposed in the interior chassis cavity, thereby causing at least a portion of the expandable containment device to be outwardly disposed with respect to the chassis along the second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 21)
-
-
17. A system configured to augment a vertebral body, the system comprising:
-
an expandable containment device that defines an interior device cavity; a cannula that defines a proximal cannula end, a distal cannula end spaced from the proximal cannula end, and a cannula passageway that extends between the proximal cannula end and the distal cannula end; a chassis that defines an interior chassis cavity that is configured to at least partially receive the expandable containment device, the chassis configured to be received in the cannula passageway, the chassis defining an insertion end and a trailing end opposite the leading end, the chassis extending along a chassis axis, the chassis having a first shape and a second shape that is different from the first shape, wherein moving the chassis from inside the cannula to outside the cannula causes the chassis to transition from the first shape to the second shape such that the chassis is curved along the chassis axis; and a sleeve that defines a sleeve passageway, the sleeve sized to be received in the cannula passageway, the sleeve configured to be detachably coupled to the chassis such that filler material can be introduced through the sleeve passageway and into the interior device cavity to expand the expandable containment device when the expandable containment device is at least partially disposed in the interior chassis cavity. - View Dependent Claims (18, 19, 20)
-
-
22. A system configured to augment a vertebral body, the system comprising:
-
an expandable containment device that defines an interior device cavity; a cannula that defines a proximal cannula end, a distal cannula end spaced from the proximal cannula end along an insertion direction, and a cannula passageway that extends between the proximal cannula end and the distal cannula end; a chassis that defines an interior chassis cavity that is configured to at least partially receive the expandable containment device, the chassis configured to be received in the cannula passageway, the chassis having a first shape and a second shape that is different from the first shape, wherein moving the chassis from inside the cannula to outside the cannula causes the chassis to transition from the first shape to the second shape such that the chassis curves so as to extend laterally with respect to the insertion direction; and a sleeve that defines a sleeve passageway, the sleeve sized to be received in the cannula passageway, the sleeve configured to be detachably coupled to the chassis such that filler material can be introduced through the sleeve passageway and into the interior device cavity to expand the expandable containment device when the expandable containment device is at least partially disposed in the interior chassis cavity. - View Dependent Claims (23, 24, 25, 26, 27)
-
Specification