Tissue expander and method

摘要: The tissue expander includes a closed shell structure having wall formed of needle-penetrable material with self-sealing characteristics. defines fluid expandable chamber. In some embodiments the invention, layer elastomeric is joined or otherwise bonded to an inner surface non-flowable material. other outer may also be sandwiched between two layers further embodiment constitutes entire expander. all needle stop member provided prevent that accesses chamber from passing outwardly in same direction which it has accessed Fluid for expanding infused directly therein through penetrates wall. seals any opening produced by removal infusion needle. Self-sealing accomplished flowing together at when withdrawn