Systems for gel-based medical implants
First Claim
Patent Images
1. A coated stent, comprising:
- a stent latticework; and
an alginate coating disposed on the stent latticework.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems, including methods and apparatus, for medical implants including a gel.
28 Citations
79 Claims
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1. A coated stent, comprising:
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a stent latticework; and
an alginate coating disposed on the stent latticework. - View Dependent Claims (7, 8, 9, 11)
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2-6. -6. (canceled)
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10. (canceled)
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12. (canceled)
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13. A method of treating a vessel in a mammalian body, the method comprising:
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providing a stent latticework;
coating the stent latticework with an alginate solution to form a coated stent having an alginate coating disposed on the stent latticework;
positioning the coated stent within the vessel;
deploying the coated stent; and
eluting a therapeutic agent from the alginate coating. - View Dependent Claims (17, 20, 22, 23)
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14-16. -16. (canceled)
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18-19. -19. (canceled)
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21. (canceled)
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24-25. -25. (canceled)
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26. An alginate coating for an implantable medical device, the alginate coating comprising:
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an alginate matrix; and
at least one of a therapeutic component and a cellular component dispersed within the alginate matrix.
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27. (canceled)
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28. An alginate implant for treating a vessel in a mammalian body, the alginate implant comprising:
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an alginate matrix in contact with an endoluminal wall of the vessel; and
a central lumen axially extending through the alginate matrix. - View Dependent Claims (39)
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29-38. -38. (canceled)
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40. A method of treating a vessel in a mammalian body, the method comprising:
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forming an alginate implant within the vessel, the alginate implant in contact with an endoluminal wall of the vessel and having a central lumen axially extending through the alginate implant; and
eluting a therapeutic agent from one of a therapeutic component or a cellular component dispersed within the alginate implant. - View Dependent Claims (49)
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41-48. -48. (canceled)
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50-52. -52. (canceled)
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53. A system for forming an alginate implant in a mammalian body, the system comprising:
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an implant formation catheter having a catheter body;
a formation balloon attached to the catheter body near a distal end of the catheter body; and
an alginate-delivery lumen within the catheter body, wherein an alginate implant is formed from an alginate solution injected through the alginate-delivery lumen into a cavity between the formation balloon and an endoluminal wall of the vessel when the formation balloon is inflated.
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54-58. -58. (canceled)
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59. A method of forming an alginate implant in a vessel of a mammalian body, the method comprising:
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positioning an implant formation catheter in the vessel, the implant formation catheter having a catheter body;
inflating a distal occlusion balloon attached to the catheter body near a distal end of the catheter body;
inflating a proximal occlusion balloon attached to the catheter body proximal to the distal balloon;
inflating a medial formation balloon attached to the catheter body between the distal occlusion balloon and the proximal occlusion balloon;
injecting an alginate solution through an alginate-delivery lumen into a cavity formed between the inflated distal occlusion balloon, the inflated proximal occlusion balloon, the inflated medial formation balloon, and an endoluminal wall of the vessel; and
hardening the alginate solution to form the alginate implant.
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60-62. -62. (canceled)
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63. A method of forming an alginate implant in a vessel of a mammalian body, the method comprising:
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positioning an implant formation catheter at a first location in the vessel, the implant formation catheter having a catheter body;
inflating an angioplasty balloon attached to the catheter body near a distal end of the catheter body, the angioplasty balloon having an alginate linking agent disposed on a surface of the angioplasty balloon;
depositing the alginate linking agent on an endoluminal wall of the vessel;
deflating the angioplasty balloon;
repositioning the implant formation catheter at a second location in the vessel, the second location in the vessel distal to the first location in the vessel;
re-inflating the angioplasty balloon;
inflating a formation balloon attached to the catheter body proximal to the angioplasty balloon;
injecting an alginate solution through an alginate-delivery lumen into a cavity formed between the formation balloon and an endoluminal wall of the vessel; and
hardening the alginate solution to form the alginate implant, wherein the alginate solution is hardened by the alginate linking agent deposited on the endoluminal wall of the vessel.
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64-67. -67. (canceled)
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68. A method of forming an alginate implant in a vessel of a mammalian body, the method comprising:
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inserting an implant formation catheter into the vessel, the implant formation catheter having at least one formation balloon;
injecting an alginate solution into a cavity formed between the formation balloon and an endoluminal wall of the vessel when the formation balloon is inflated;
hardening the alginate solution to form the alginate implant; and
withdrawing the implant formation catheter from the vessel, wherein the formed alginate implant is in contact with the endoluminal wall of the vessel and includes a central lumen axially extending through the alginate implant.
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69. An alginate bioreactor for treating a mammalian body, the alginate bioreactor comprising:
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an alginate matrix; and
one of a therapeutic component or a cellular component dispersed within the alginate matrix, wherein a therapeutic agent is eluted from the alginate matrix after the alginate bioreactor is formed within the body. - View Dependent Claims (71, 77)
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70. (canceled)
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72-76. -76. (canceled)
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78. A method of treating a medical condition in a mammalian body, the method comprising:
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forming an alginate bioreactor within a portion of the mammalian body, the alginate bioreactor including an alginate matrix; and
eluting a therapeutic agent from one of a therapeutic component or a cellular component dispersed within the alginate bioreactor.
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79-97. -97. (canceled)
Specification