Patent ID: 6241738
Filing Date: 2001-06-05
Classification: A61B,A61F,A61N

Abstract:
A capturing device to be introduced into a tubular biological conduit of a human or animal body, in order to capture a tubular article situated in this conduit, comprising a support sheath having a first axial cavity, pushing means accommodated inside the support sheath and capable of sliding in the said first axial cavity, first control means permitting a relative displacement between the pushing means and the support sheath, flexible gripping means which are borne by the pushing means and are displaceable between a position outside the support sheath, in which position said gripping means are spread apart from one another, and a position inside the support sheath, in which position said gripping means are drawn together, said gripping means comprising fastening elements which are disposed peripherally on a pusher of said pushing means so as to extend forwardly, inside the support sheath, and to spread apart radially from one another outside the support sheath, and which fastening elements are each provided at their distal end with a hook which is curved radially outwardly, said hooks, when the fastening elements are situated inside the tubular article and are brought into said position of fastening to an inner surface of the tubular article, and which, when the fastening elements are situated in the fastening position and are brought towards said position inside the support sheath, radially compress the tubular article and elongate said tubular article longitudinally, an external sheath having a second axial cavity in which the support sheath is slideably accommodated, second control means permitting a relative displacement between the external sheath and the support sheath, and means for recovering the article captured by the fastening elements, said means being displaceable between a position outside the external sheath and a position inside the external sheath.