Photodynamic Bone Stabilization Systems and Methods for Reinforcing Bone
First Claim
1. A photodynamic bone stabilization system comprising:
- a catheter having an elongated shaft with a proximal end adapter, a distal end releasably engaging an expandable portion, and a longitudinal axis therebetween;
a light-conducting fiber configured to transmit light energy to the expandable portion;
a light-sensitive liquid monomer comprising an initiator, wherein the initiator is activated when the light-conducting fiber transmits the light energy to initiate polymerization of the light-sensitive liquid monomer; and
a cooling medium configured to control polymerization temperature,wherein the catheter comprises an inner void sufficiently designed to pass the light-sensitive liquid monomer into the expandable portion, and wherein the catheter comprises an inner lumen sufficiently designed to pass the light-conducting fiber into the expandable portion and configured to circulate the cooling medium.
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Accused Products
Abstract
Photodynamic bone stabilization systems are disclosed herein. In an embodiment, a photodynamic bone stabilization system includes a catheter having an elongated shaft with a proximal end adapter, a distal end releasably engaging an expandable portion, and a longitudinal axis therebetween; a light-conducting fiber configured to transmit light energy to the expandable portion; a light-sensitive liquid monomer comprising an initiator, wherein the initiator is activated when the light-conducting fiber transmits the light energy to initiate polymerization of the light-sensitive liquid monomer; and a cooling medium configured to control polymerization temperature, wherein the catheter comprises an inner void sufficiently designed to pass the light-sensitive liquid monomer into the expandable portion, and wherein the catheter comprises an inner lumen sufficiently designed to pass the light-conducting fiber into the expandable portion and configured to circulate the cooling medium.
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Citations
20 Claims
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1. A photodynamic bone stabilization system comprising:
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a catheter having an elongated shaft with a proximal end adapter, a distal end releasably engaging an expandable portion, and a longitudinal axis therebetween; a light-conducting fiber configured to transmit light energy to the expandable portion; a light-sensitive liquid monomer comprising an initiator, wherein the initiator is activated when the light-conducting fiber transmits the light energy to initiate polymerization of the light-sensitive liquid monomer; and a cooling medium configured to control polymerization temperature, wherein the catheter comprises an inner void sufficiently designed to pass the light-sensitive liquid monomer into the expandable portion, and wherein the catheter comprises an inner lumen sufficiently designed to pass the light-conducting fiber into the expandable portion and configured to circulate the cooling medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A photodynamic bone stabilization system comprising:
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a light-conducting fiber configured to transmit light energy; a light-sensitive liquid monomer comprising an initiator, wherein the initiator is activated when the light-conducting fiber transmits the light energy; a pressurizing medium configured to control polymerization shrinkage; and a catheter having an elongated shaft with a proximal end adapter, a distal end releasably engaging an expandable portion, and a longitudinal axis therebetween, wherein the catheter comprises an inner void and an inner lumen, wherein the inner void is sufficiently designed to pass the light-sensitive liquid monomer into the expandable portion, wherein the inner lumen is sufficiently designed to pass the light-conducting fiber into the expandable portion, and wherein the inner lumen comprises expandable portions configured to expand when the pressurizing medium is delivered to the inner lumen so as to cause internal diameter pressure against the light-sensitive liquid monomer contained within the expandable portion during polymerization. - View Dependent Claims (14)
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15. A method comprising:
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providing a system comprising; a catheter having an elongated shaft with a proximal end adapter, a distal end releasably engaging an expandable portion, and a longitudinal axis therebetween; a light-conducting fiber configured to transmit light energy to the expandable portion; a light-sensitive liquid monomer comprising an initiator, wherein the initiator is activated when the light-conducting fiber transmits the light energy, to initiate polymerization of the light-sensitive liquid monomer; and a cooling medium configured to control polymerization temperature, wherein the catheter comprises an inner void sufficiently designed to pass the light-sensitive liquid monomer into the expandable portion, and wherein the catheter comprises an inner lumen sufficiently designed to pass the light-conducting fiber into the expandable portion and configured to circulate the cooling medium; inserting the expandable portion of the system into an intramedullary canal spanning a fracture site comprising a plurality of fractured pieces; infusing the light-sensitive liquid monomer into the inner void of the catheter so that the light-sensitive liquid monomer expands the expandable portion until the fractured pieces are substantially restored to their natural positions; inserting the light-conducting fiber into the inner lumen of the catheter so that the light-conducting fiber resides in the expandable portion; activating the light-conducting fiber to transmit light energy to the expandable portion to initiate in situ polymerization of the light-sensitive liquid monomer within the expandable portion; infusing the cooling medium into the inner lumen of the catheter to control polymerization temperature; and completing the in situ polymerization of the light-sensitive liquid monomer to harden the expandable portion at the fracture site. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification