摘要:
A medical system includes a sensor location module, a first module, and a second module. The sensor location module determines a location of a magnetic field sensor within a magnetic field. The first module determines an acceleration of the magnetic field sensor. The second module indicates a modified location of the magnetic field sensor in an image of a medical patient based on the acceleration and one or more previously determined locations.
摘要:
A medical system includes a sensor location module, a first module, and a second module. The sensor location module determines a location of a magnetic field sensor within a magnetic field. The first module determines an acceleration of the magnetic field sensor. The second module indicates a modified location of the magnetic field sensor in an image of a medical patient based on the acceleration and one or more previously determined locations.
摘要:
A method and system which includes a minimally invasive, implantable device with a sensor configured for collecting electrical data associated with cardiac performance, a sensor configured for collecting mechanical data associated with cardiac performance, a sensor for collecting optical data associated with cardiac performance, a sensor for collecting biochemical data associated with cardiac performance, and a processor for deriving cardiac conditions and actuating an alarm upon identifying a cardiac event.
摘要:
A method and system which includes a minimally invasive, implantable device with a sensor configured for collecting electrical data associated with cardiac performance, a sensor configured for collecting mechanical data associated with cardiac performance, a sensor for collecting optical data associated with cardiac performance, a sensor for collecting biochemical data associated with cardiac performance, and a processor for deriving cardiac conditions and actuating an alarm upon identifying a cardiac event.
摘要:
A device includes a flexible substrate, N coiled conductors, and a plurality of folding regions. The N coiled conductors are deposited on the flexible substrate and connected in series by conductive interconnects. N is greater than 1. Each of the folding regions is defined by a separation distance between adjacent ones of the N coiled conductors. The conductive interconnects traverse the folding regions between the N coiled conductors to connect the N coiled conductors in series. The flexible substrate is folded such that the N coiled conductors form a stack of N coiled conductors.
摘要:
A device includes a flexible substrate, N coiled conductors, and a plurality of folding regions. The N coiled conductors are deposited on the flexible substrate and connected in series by conductive interconnects. N is greater than 1. Each of the folding regions is defined by a separation distance between adjacent ones of the N coiled conductors. The conductive interconnects traverse the folding regions between the N coiled conductors to connect the N coiled conductors in series. The flexible substrate is folded such that the N coiled conductors form a stack of N coiled conductors.
摘要:
An implantable medical device of the type formed of a hermetically sealed enclosure attached on a enclosure attachment surface thereof to a module attachment surface of a pre-formed header module is disclosed. The pre-formed header module is attached to the enclosure attachment surface through use of a retention structure extending away from the enclosure surface into proximity with a portion of the pre-formed header module when the enclosure and module attachment surfaces are aligned with respect to one another. The retention structure comprises a bendable member that is bent from an initial position allowing the pre-formed header module to be seated with respect to the hermetically sealed enclosure to a retention position making an attachment against a bend engaging portion of the pre-formed header module. The bendable member is the free end portion of an attachment tab having a tab base attached at a predetermined location of the hermetically sealed enclosure such that the upstanding attachment tab extends in a predetermined direction away from the enclosure surface and the free end of the attachment tab is bendable laterally with respect to the predetermined direction against the bend engaging portion. Adhesive is then applied to the retention mechanism and the space between the enclosure attachment surface and the module attachment surface.
摘要:
An injectable wireless perfusion sensor provides data to an external device regarding the perfusion of the targeted tissue. The sensor permits a caregiver to monitor cardiovascular performance in specific areas such as the extremities. The sensor will identify whether vascular constriction or obstruction is present and to what extent. Further, once such a condition is treated, the sensor will monitor the effectiveness of that treatment.
摘要:
A minimally invasive, implantable heart sound and ECG monitor and associated method for deriving blood pressure from heart sound data. The device is equipped with an acoustical sensor for detecting first and second heart sounds which are sampled and stored during sensing windows following R-wave and T-wave detections, respectively. ECG and heart sound data are stored in a continuous, looping memory, and segments of data are stored in long-term memory upon an automatic or manual data storage triggering event. Estimated blood pressure is calculated based on custom spectral analysis and processing of the first and second heart sounds. A calibration method includes measuring a patient's blood pressure using a standard clinical method and performing regression analysis on multiple spectral variables to identify a set of best fit weighted equations for predicting blood pressure. Concurrent ECG and estimated blood pressure may be displayed for review by a physician.
摘要:
The invention disclosed herein provides methods and materials for observing the state of a sensor, for example those used by diabetic patients to monitor blood glucose levels. Typically a voltage such as a voltage pulse is applied to the sensor in order to solicit a current response from which for example, factors such as impedance values can be derived. Such values can then be used as indicators of a sensor's state, for example the state of sensor hydration, sensor noise, sensor offset, sensor drift or the like.