| 摘要 |
The invention discloses a device for anchoring a brain lead, comprising: an anchoring ring comprising a circular base and a flange joining together where the inner walls forms an aperture defining a passage of a lead, and outer walls engages with a burr hole to secure said ring to the cranium; and a septum contained within the aperture of the anchoring ring, comprising a slit in its center to allow the brain lead to pass through. Due to the fact the septum is already placed in the aperture when the trocar is removed from the brain, the body of the brain lead is immediately clamped by the elastic material of the septum while the tip of trocar is removed from the slit of septum. The friction between the lead body and the elastic material prohibits any movement of the lead caused by handling of lead during or after the operation. Thus the desired placement of electrodes inside the brain is ensured in the entire procedures. Moreover, the septum is contained within the aperture and the top of the septum is below the flange portion of the ring, therefore the device is less protruding comparing with the prior art, thereby causes less discomfort to the patient. |
