Expandable orthopedic device
First Claim
1. A device for stabilizing bone, comprising:
- an elongate body having first and second end regions defining a longitudinal axis therebetween;
a plurality of splines extending from the first end region, the splines being directable from a collapsed state to a substantially transverse expanded state;
a plurality of support arms coupled to the splines; and
an actuator coupled to the support arms, the actuator movable axially relative to the elongate body for displacing distal ends of the support arms away from the longitudinal axis, thereby causing the splines to bend in a curvilinear manner away from one another towards the expanded state.
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Accused Products
Abstract
A device for stabilizing bone includes a tubular body having first and second end regions defining a longitudinal axis therebetween. A plurality of splines extend from the first end region, the splines including first ends coupled to the first end region, and second ends disposed away from the first end region, the second ends being directable from a generally axial collapsed state to a substantially transverse expanded state. A plurality of support arms are coupled to the splines, and an actuator is coupled to the support arms, the actuator movable axially relative to the elongate body for causing the support arms to direct the second ends of the splines from the collapsed state to the expanded state. Optionally, the device includes another set of splines extending from the second end region or located at an intermediate region of the tubular body.
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Citations
22 Claims
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1. A device for stabilizing bone, comprising:
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an elongate body having first and second end regions defining a longitudinal axis therebetween; a plurality of splines extending from the first end region, the splines being directable from a collapsed state to a substantially transverse expanded state; a plurality of support arms coupled to the splines; and an actuator coupled to the support arms, the actuator movable axially relative to the elongate body for displacing distal ends of the support arms away from the longitudinal axis, thereby causing the splines to bend in a curvilinear manner away from one another towards the expanded state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for stabilizing bone, comprising:
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an elongate body having proximal and distal end regions defining a longitudinal axis therebetween; a plurality of splines extending from the distal end region, the splines being directable from a collapsed state to a substantially transverse expanded state; a plurality of support arms coupled to the plurality of splines; and an actuator coupled to the support arms, the actuator movable relative to the elongate body for causing the support arms to direct the splines between the collapsed and expanded states; wherein the splines and the support arms are formed from at least a portion of a tubular shaft. - View Dependent Claims (14, 15)
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16. A device for stabilizing bone, comprising:
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an elongate body having first and second end regions defining a longitudinal axis therebetween; a plurality of splines extending from the first end region, the splines being directable from a collapsed state to a substantially transverse expanded state; a plurality of support arms coupled to the splines; and an actuator coupled with at least one of the support arms and including an elongate member, the elongate member being movable axially relative to the elongate body for displacing distal ends of the support arms away from the longitudinal axis, thereby causing the splines to bend away from one another towards the expanded state. - View Dependent Claims (17, 18)
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19. A method for treating a fracture in a bone, comprising:
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providing an elongate tubular body including a plurality of splines extending from a distal end of the tubular body, support arms coupled to the splines, and an actuator coupled to the support arms; inserting the distal end of the tubular body into a passage through bone extending across a fracture in the bone with the splines in a collapsed state; positioning the actuator distally relative to the tubular body to move the support arms, thereby causing the splines to curve radially outwardly away from one another in a pattern substantially transverse to said elongate tubular body to stabilize the bone. - View Dependent Claims (20, 21, 22)
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Specification