Abstract: A method of treating cerebral vasospasm includes delivering at least a first blood vessel including an expandable segment to a position within a blocked or constricted portion of a vessel and transitioning the expandable segment from a collapsed configuration to an expanded configuration to dilate the vessel and to restore adequate blood flow through the vessel. The expandable segment has a pre-set outer diameter substantially equal to or less than an inner diameter of the vessel. Additionally, the expandable segment is configured to expand with a minimal amount of radial force necessary to contact and expand the inner walls of the vessel. After dilation of the vessel, the device is removed from the patient's body.

Abstract: A blood vessel locating and stabilizing device including a transparent planar device that may be used to locate and stabilize a blood vessel so that the blood vessel is less likely to roll when it is punctured with a needle. The device is planar and includes a transparent region and a recess formed in a distal side surface that is configured to locate and stabilize a blood vessel. In a method of using the present device, the planar member is gripped along a first and second major surfaces of the device, the recess is positioned over the targeted blood vessel, and a force is applied to the device so that the blood vessel is located and stabilized.