No assignee for patent application serial number 848044 has been made.
News editors obtained the following quote from the background information supplied by the inventors: "Lack of adequate oxygenation of brain tissue causes brain injury. A stroke occurs when the blood supply to part of the brain is suddenly interrupted or when a blood vessel in the brain bursts, spilling blood into the spaces surrounding brain cells, or when the brain or a portion of the brain is deprived of oxygen or oxygenation is impaired by exogenous substances such as carbon monoxide, hemorrhage, or hypoperfusion. Brain cells die when they no longer receive adequate oxygen and nutrients from the blood or there is sudden bleeding into or around the brain. The symptoms of a stroke include sudden numbness or weakness, especially on one side of the body; sudden confusion or trouble speaking or understanding speech; sudden trouble seeing in one or both eyes; sudden trouble with walking, dizziness, or loss of balance or coordination; or sudden severe headache with no known cause. There are several forms of stroke, including: ischemic--blockage of a blood vessel supplying the brain, due to thrombosis or embolus, and hemorrhagic--bleeding into the brain tissue (intracerebral hemorrhage), or into the subarachnoid space (subarachnoid hemorrhage). Brain injury can also occur from subdural or epidural hematoma. Stroke involving the spinal cord can also occur due to the same or similar causes of stroke involving the brain (ischemia, hemorrhage, hypoperfusion, etc.). Traumatic brain injury (TBI), a form of acquired brain injury, occurs when a sudden trauma causes damage to the brain. TBI can result when the head suddenly and violently hits an object, or when an object pierces the skull and enters brain tissue. Symptoms of a TBI can be mild, moderate, or severe, depending on the extent of the damage to the brain. A person with a mild TBI may remain conscious or may experience a loss of consciousness for a few seconds or minutes. Other symptoms of mild TBI include headache, confusion, lightheadedness, dizziness, blurred vision or tired eyes, ringing in the ears, bad taste in the mouth, fatigue or lethargy, a change in sleep patterns, behavioral or mood changes, and trouble with memory, concentration, attention, or thinking. A person with a moderate or severe TBI may show these same symptoms, but may also have a headache that gets worse or does not go away, repeated vomiting or nausea, convulsions or seizures, an inability to awaken from sleep, dilation of one or both pupils of the eyes, slurred speech, weakness or numbness in the extremities, loss of coordination, and increased confusion, restlessness, or agitation. Adverse residual neurological and brain effects from TBI occurring years before can continue. These chronic adverse effects can include difficulties with attention, concentration, planning, calculation, reading, vision, hearing, balance and motor activities such as walking or use of hands or limbs. Traumatic brain injury can occur from repeated trauma to the head, such as occurs in contact sports such as football, boxing, or soccer, or repeated concussions of any origin.
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