Apparatus and Method for Capsule Formation in Tissue
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United States of America Patent
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app pub date -
Sep 4, 2009
filing date -
Sep 5, 2008
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Abstract
Capsules, emplacement apparatus, and associated methods for establishing a capsule within tissue are described herein. The emplacement apparatus may be catheter-based or implemented in a handheld unit. The emplacement apparatus serves to introduced an encapsulating membrane in a collapsed condition into the tissue, and then to expand the encapsulating membrane within the tissue into a capsule by injection of fill material into the encapsulating membrane. Other than being capable of injection through the emplacement apparatus, the fill material may be selected and formulated to achieve such mechanical and biological properties within the encapsulating membrane after injection as are desired to achieve the therapeutic effect sought for the patient. Mechanically, the fill material within the encapsulating membrane after injection may be a liquid, a semi-solid such as a gel, or a solid such as a cross-linked polymer. The fill material may or may not be sealed within the encapsulating membrane.
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