| 摘要 |
<p>A dual channel shunt device (30) and method allow for the easy and safe draining of first bloody and then clear hydrocephalic fluid (28) from the brain. A burr hole (22) is drilled to allow a catheter (14) to access the lateral ventricle (12) and then a tube (26) is run under the scalp (26) to the dual channel device (30) and then from the dual channel device (30) through another tube (18) to drain into the peritoneal cavity (36). The first channel (26a, 26b) comprises an on-off switch (32,60) coupled with an anti-siphon device (64). The second channel (26b, 18b) comprises a pressure resistant valve (34) offering a resistance in the range of 40 - 80 Millimeters of water. Initially the bloody fluid (28) is drained through the on / off switch (32). When the fluid (28) has cleared, as determined by a CT scan, the surgeon turns off the on-off switch (32) thereby diverting the clear fluid (28) through the pressure resistant valve (34) into the peritoneal cavity (36).</p> |
