| 摘要 |
<p>A surgical shunt (20) capable of revision and inspection on a minimal invasive basis is provided. The shunt (20) comprises a ventricle tube (22) and drain tube (30) connected by an elbow (24). The elbow (24) has branches (25) and a bend therein so as to connect the tubes (22, 30) at nearly a right angle. A portal (26) is mounted on the bend of said elbow (24). The portal (26) comprises a concave slit valve (46) and a portal cover (48) thus forming a self-sealing access to the shunt (20). The portal (26) is oriented on the elbow (24) so as to allow passage therethrough into either of said tubes (22, 30) by an angioscope or other device. Thus, the angioscope or other device can be externally inserted into the interior regions of the shunt (20) in order to remove blockages and improve cerebrospinal fluid flow without surgical procedures. An external conduit (54) runs parallel along the length of the drain tube (30). This conduit (54) contains a number of openings (56) along its length for the delivery of antibiotics and other therapeutic substances to the tissues surrounding the shunt (30).</p> |
