Method of delivering a plurality of elements and fluent material into a vertebral body
First Claim
1. A method of delivering elements and a fluent material capable of setting into a hardened condition into a vertebral body having an interior of cancellous bone to form an implant, said method comprising the steps of:
- providing a delivery cannula defining a delivery passage and at least one groove separate from and open to the delivery passage, and a push rod;
placing the fluent material at least partially within a void space defined among the elements in the delivery passage of the delivery cannula, wherein the elements are disposed adjacent to one another in the delivery passage; and
inserting the push rod in the delivery passage of the delivery cannula to slide the push rod along the delivery passage and apply a force to a first of the elements and transfer the force through the first element to a second of the elements disposed in the delivery passage to move the elements through the delivery passage and into the interior of the vertebral body such that the fluent material is simultaneously carried with the elements as the elements move through the delivery passage and into the interior of the vertebral body, and such that the fluent material flows from the void space to the at least one groove and backflows around the elements so that pressurization of the fluent material is reduced upon application of the force whereby the fluent material sets to the hardened condition to secure the elements and form the implant.
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Accused Products
Abstract
A system for forming an implant to stabilize an interior of a vertebral body is provided. The system includes a delivery cannula. A plurality of elements are disposed adjacent to one another in the delivery cannula with void spaces defined between the elements. A fluent material, capable of setting to a hardened condition, is disposed within at least a portion of the void space in the delivery cannula. A push rod is movably disposed within the delivery cannula to apply a force to move the elements through the delivery cannula and into the interior of the vertebral body. Upon application of the force, the elements simultaneously carry the fluent material through the delivery cannula and into vertebral body to delivery the fluent material at a low pressure. The fluent material sets to the hardened condition to secure the elements and form the implant.
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Citations
19 Claims
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1. A method of delivering elements and a fluent material capable of setting into a hardened condition into a vertebral body having an interior of cancellous bone to form an implant, said method comprising the steps of:
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providing a delivery cannula defining a delivery passage and at least one groove separate from and open to the delivery passage, and a push rod; placing the fluent material at least partially within a void space defined among the elements in the delivery passage of the delivery cannula, wherein the elements are disposed adjacent to one another in the delivery passage; and inserting the push rod in the delivery passage of the delivery cannula to slide the push rod along the delivery passage and apply a force to a first of the elements and transfer the force through the first element to a second of the elements disposed in the delivery passage to move the elements through the delivery passage and into the interior of the vertebral body such that the fluent material is simultaneously carried with the elements as the elements move through the delivery passage and into the interior of the vertebral body, and such that the fluent material flows from the void space to the at least one groove and backflows around the elements so that pressurization of the fluent material is reduced upon application of the force whereby the fluent material sets to the hardened condition to secure the elements and form the implant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of delivering elements and a fluent material capable of setting into a hardened condition into a vertebral body having an interior of cancellous bone to form an implant, said method comprising the steps of:
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providing a delivery cannula, and a push rod including a pusher; placing the fluent material at least partially within a void space defined among the elements in a delivery passage of the delivery cannula, wherein the elements are disposed adjacent to one another in the delivery passage; and inserting the push rod in the delivery passage of the delivery cannula to slide the pusher along the delivery passage and apply a force to move the elements through the delivery passage and into the interior of the vertebral body such that the fluent material is simultaneously carried with the elements as the elements move through the delivery passage and into the interior of the vertebral body, and such that the fluent material backflows past the pusher so that pressurization of the fluent material is reduced upon application of the force, whereby the fluent material sets to the hardened condition to secure the elements and form the implant. - View Dependent Claims (18, 19)
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Specification