Post-biopsy cavity treatmetn implants and methods
First Claim
Patent Images
1. A post-biopsy cavity treatment implant, comprising:
- a first portion including a first porous matrix defining a first controlled pore architecture, and a second portion coupled to the first portion, the second portion including a second porous matrix defining a second controlled pore architecture that is different from the first controlled pore architecture to cause the second portion to swell in a different manner than the first portion when the post-biopsy cavity treatment implant is implanted in an aqueous environment.
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Abstract
An embodiment of a post-biopsy cavity treatment implant includes a first portion including a first porous matrix defining a first controlled pore architecture or crosslinking density, and a second portion coupled to the first portion. The second portion includes a second porous matrix that defines a second controlled pore architecture or a second crosslinking density that is different from the first controlled pore architecture or the first crosslinking density, causing the second portion to swell in a different manner than the first portion when the implant is placed in an aqueous environment.
31 Citations
73 Claims
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1. A post-biopsy cavity treatment implant, comprising:
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a first portion including a first porous matrix defining a first controlled pore architecture, and a second portion coupled to the first portion, the second portion including a second porous matrix defining a second controlled pore architecture that is different from the first controlled pore architecture to cause the second portion to swell in a different manner than the first portion when the post-biopsy cavity treatment implant is implanted in an aqueous environment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 64, 65, 66)
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34. A method for mapping a lymphatic system following a cavity generating procedure, comprising:
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providing a post-biopsy cavity treatment implant, the implant including a collagenous matrix having a non-uniform cross-linking density that is configured to cause the implant to swell non-uniformly when placed within an aqueous environment, the implant including a dye or a pigment contained therein;
implanting the provided post-biopsy cavity treatment implant into the cavity;
closing the cavity with the post-biopsy cavity treatment implant implanted therein;
causing the dye/pigment to be released from the implant and to propagate through the lymphatic system, and visualizing the propagated dye/pigment in the lymphatic system using a selected visualization mode. - View Dependent Claims (35, 36, 37, 38, 39)
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40. A post-biopsy cavity treatment implant, comprising:
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a first portion comprising a first collagenous matrix, the first collagenous matrix being controlled to have a first crosslinking density, and a second portion in contact with the first portion, the second portion comprising a second collagenous matrix, the second collagenous matrix being controlled to have a second crosslinking density, the first crosslinking density being controlled to be different than the second cross-linking density. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 67, 68, 69)
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70. A post-biopsy cavity treatment implant, comprising:
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a first portion including a first collagenous matrix defining a first controlled pore architecture, and a second portion coupled to the first portion, the second portion comprising a second collagenous matrix, the second collagenous matrix being controlled to have a first controlled crosslinking density to cause the second portion to swell in a different manner than the first portion when the post-biopsy cavity treatment implant is implanted in an aqueous environment.
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71. Method of filling a cavity created by an excisional procedure, the cavity having a predetermined shape, the method comprising the steps of:
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providing an implant, the implant including at least a first portion and a second portion, the first portion comprising a first collagenous matrix that defines a first selected crosslinking density, the second portion comprising a second collagenous matrix that defines a second selected crosslinking density that is different than the second cross-linking density, the first and second cross-linking densities being selected so as to cause the first and second portions to swell into a size and a shape that is similar to the predetermined shape of the cavity when the implant is implanted;
implanting the implant within the cavity through an incision;
adding an aqueous solution to the cavity if the cavity is not sufficiently aqueous to cause the implant to swell, and closing the incision with the implant implanted in the cavity. - View Dependent Claims (72, 73)
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Specification