| 摘要 |
The invention relates to a synthetic prosthesis with improved design intended to be used as a deep reinforcement of the tissues in the surgical treatment of hernias formed in the myopectineal orifices and in other areas of the abdominal wall. The prosthatic sheets used in the prior art for this purpose are thin sheets fabricated with various polymers. They are very flexible and consequently cause many difficulties during the surgical operation (particularly when it is necessary to use a small incision, for example by laparoscopy), in placing and unfolding the sheet, having to use many stitches or staples in order to maintain the sheet unfolded and to avoid its creeping. The invention comprises the integration of two parts into a prosthetic unit: a flexible sheet and a self-unfolding structural device which may have either the shape of an arc or the shape of a ring, both parts being fabricated with various materials; the self-unfolding device provides a peripheral consistency to the sheet, the latter still keeping its flexibility; thus, it is possible to adapt said sheet to the tissues, which simplifies the positioning, and its unfolding is automatic since there is no obstacle and, as a consequence, the use of stitches or staples for fixing the sheet to the tissues is avoided or minimized; the sliding of the sheet through the hernial orifice is impeded, because the sheet is held permanently unfolded. Consequently, surgical risks, costs and means are reduced.
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