Abstract: The present specification describes a system for diagnosing or screening one or more pathologies in a patient. The system includes a headset with at least one microphone or accelerometer to passively receive vibrations generated by the cerebral vasculature of the patient's brain, computing devices coupled with the headset for processing the received vibrations to obtain a unique signal, and a signal analyzer to analyze the signal in order to determine if the data includes patterns uniquely indicative of at least one of tension headaches, migraines, depression, dementia, Alzheimer's disease, epilepsy, Parkinson's disease, autism, cerebral vasospasm and meningitis.

Abstract: The present specification describes a system for diagnosing or screening one or more pathologies in a patient. The system includes a headset with at least one microphone or accelerometer to passively receive vibrations generated by the cerebral vasculature of the patient's brain, computing devices coupled with the headset for processing the received vibrations to obtain a unique signal, and a signal analyzer to analyze the signal in order to determine if the data includes patterns uniquely indicative of at least one of tension headaches, migraines, depression, dementia, Alzheimer's disease, epilepsy, Parkinson's disease, autism, cerebral vasospasm and meningitis.

Abstract: A powered or automatic air management system for measuring pressure from an air pressure catheter located within a patient. Powered pumps are included in a remote pump assembly to automatically adjust the air volume to a desired level. A pressure transducer assembly is located at the bed of the patient and is connected to an air catheter, and a separate pump assembly is fixed to an IV pole away from the patient and connected to a pressure monitor to display the pressure readings. By locating the pressure transducer to a location relatively close to the connection point of the catheter, more accurate pressure readings can be achieved.

Abstract: The present specification describes a system for diagnosing or screening one or more pathologies in a patient. The system includes a headset with at least one microphone or accelerometer to passively receive vibrations generated by the cerebral vasculature of the patient's brain, computing devices coupled with the headset for processing the received vibrations to obtain a unique signal, and a signal analyzer to analyze the signal in order to determine if the data includes patterns uniquely indicative of at least one of tension headaches, migraines, depression, dementia, Alzheimer's disease, epilepsy, Parkinson's disease, autism, cerebral vasospasm and meningitis.

Abstract: A catheter connector is described having a hydrophobic end cap or washer located around the end opening to the connector's lumen. The diameter and length of the lumen below the washer is sufficiently large enough to accommodate an absorbent tubular filter that changes color when exposed to fluid. The washer acts to limit the size of the water droplet that might adhere to the end of the catheter and help maintain surface tension on the droplet to prevent it from entering the lumen. The hydrophilic tubular filter absorbs any water that might pass by the washer and thus keeps the lumen hole open.

Abstract: A catheter connector has a hydrophobic end cap or washer located around the end opening to the connector's lumen. The diameter and length of the lumen below the washer is sufficiently large enough to accommodate an absorbent tubular filter that changes color when exposed to fluid. The washer acts to limit the size of the water droplet that might adhere to the end of the catheter and help maintain surface tension on the droplet to prevent it from entering the lumen. The hydrophilic tubular filter absorbs any water that might pass by the washer and thus keeps the lumen hole open.

Abstract: A powered or automatic air management system for measuring pressure from an air pressure catheter located within a patient. Powered pumps are included in a remote pump assembly to automatically adjust the air volume to a desired level. A pressure transducer assembly is located at the bed of the patient and is connected to an air catheter, and a separate pump assembly is fixed to an IV pole away from the patient and connected to a pressure monitor to display the pressure readings. By locating the pressure transducer to a location relatively close to the connection point of the catheter, more accurate pressure readings can be achieved.

Abstract: A catheter connector is described having a hydrophobic end cap or washer located around the end opening to the connector's lumen. The diameter and length of the lumen below the washer is sufficiently large enough to accommodate an absorbent tubular filter that changes color when exposed to fluid. The washer acts to limit the size of the water droplet that might adhere to the end of the catheter and help maintain surface tension on the droplet to prevent it from entering the lumen. The hydrophilic tubular filter absorbs any water that might pass by the washer and thus keeps the lumen hole open.

Abstract: An air management system is described for removing and reintroducing a desired amount of air into an air passage of a pressure measurement catheter. More specifically, the system includes a cylindrical housing, check valves in communication with the housing and an moveable shaft with multiple sealing members along its length. As the shaft is moved within the housing, a piston member causes the residual air in the catheter air passage to be evacuated to a defined negative pressure. Further movement of the shaft causes a piston member to inject a predetermined volume of air into the catheter air passage. In this respect, periodic adjustments of the piston member returns the volume of air in a variable volume chamber to one that is unaffected by residual volume in the chamber and that provides an optimum volume of air to maximize the time the sensor can function accurately between recharging events.

Abstract: An air management system is described for removing and reintroducing a desired amount of air into an air passage of a pressure measurement catheter. More specifically, the system includes a cylindrical housing, check valves in communication with the housing and an moveable shaft with multiple sealing members along its length. As the shaft is moved within the housing, a piston member causes the residual air in the catheter air passage to be evacuated to a defined negative pressure. Further movement of the shaft causes a piston member to inject a predetermined volume of air into the catheter air passage. In this respect, periodic adjustments of the piston member returns the volume of air in a variable volume chamber to one that is unaffected by residual volume in the chamber and that provides an optimum volume of air to maximize the time the sensor can function accurately between recharging events.

Abstract: An air management system is described for removing and reintroducing a desired amount of air into an air passage of a pressure measurement catheter. More specifically, the system includes a cylindrical housing, check valves in communication with the housing and an moveable shaft with multiple sealing members along its length. As the shaft is moved within the housing, a piston member causes the residual air in the catheter air passage to be evacuated to a defined negative pressure. Further movement of the shaft causes a piston member to inject a predetermined volume of air into the catheter air passage. In this respect, periodic adjustments of the piston member returns the volume of air in a variable volume chamber to one that is unaffected by residual volume in the chamber and that provides an optimum volume of air to maximize the time the sensor can function accurately between recharging events.

Abstract: An air management system is described for removing and reintroducing a desired amount of air into an air passage of a pressure measurement catheter. More specifically, the system includes a cylindrical housing, check valves in communication with the housing and an moveable shaft with multiple sealing members along its length. As the shaft is moved within the housing, a piston member causes the residual air in the catheter air passage to be evacuated to a defined negative pressure. Further movement of the shaft causes a piston member to inject a predetermined volume of air into the catheter air passage. In this respect, periodic adjustments of the piston member returns the volume of air in a variable volume chamber to one that is unaffected by residual volume in the chamber and that provides an optimum volume of air to maximize the time the sensor can function accurately between recharging events.

Abstract: A preferred embodiment includes an MRI compatible catheter that maintains a desired temperature during an MRI procedure. Specifically, the catheter includes a lumen containing sensor wire that is surrounded by an insulating material. This material limits the transfer of heat to the outside of the catheter as the sensor wire heats during an MRI procedure.