摘要:
An apparatus and packaging method for stacking a plurality of integrated circuit substrates, i.e., substrates having integrated circuits formed as integral portions of the substrates, which provides interconnection paths through the substrates to simplify electrical connections between the integrated circuits while facilitating minimization of the volume and customization of the three dimensional package size to conform to the available internal space within a housing, e.g., one used in an implantabie device where package volume is at a premium. Furthermore, an internal cavity can be created by the stacked formation that is suitable for mounting of a surface mount device, e.g., a crystal or the like.
摘要:
A method and apparatus for improving visual acuity when providing a visual image from a “high” resolution input device to a “low” resolution output device. The described invention is of particular use when the output device is an array of electrodes as part of a retinal prosthesis used to restore vision to a visually-impaired patient. In that various limitations may, within the foreseeable future, limit the density of such an electrode array (and thus the resolution of the output image), the present invention teaches techniques to assign processed pixel subsets of a higher resolution image to a single electrode. By varying the pixel subsets, e.g., by jittering, and/or altering the processing criteria, the perceived visual acuity may be further improved. Alternatively and additionally, such processing may be further extended to drive neighboring electrodes in combination to thus stimulate virtual electrode sites and thus further enhance visual acuity.
摘要:
A method for facilitating placement of an implantable device configured for implantation beneath a patient's skin for the purpose of tissue, e.g., nerve or muscle, stimulation and/or parameter monitoring and/or data communication. A placement structure is shown for facilitating placement of the implantable device proximate to neural/muscular tissue.
摘要:
A method and apparatus for improving visual acuity when providing a visual image from a “high” resolution input device to a “low” resolution output device. The described invention is of particular use when the output device is an array of electrodes as part of a retinal prosthesis used to restore vision to a visually-impaired patient. In that various limitations may, within the foreseeable future, limit the density of such an electrode array (and thus the resolution of the output image), the present invention teaches techniques to assign processed pixel subsets of a higher resolution image to a single electrode. By varying the pixel subsets, e.g., by jittering, and/or altering the processing criteria, the perceived visual acuity may be further improved. Alternatively and additionally, such processing may be further extended to drive neighboring electrodes in combination to thus stimulate virtual electrode sites and thus further enhance visual acuity.
摘要:
A full-body charger for charging one or more battery-powered devices wherein such devices are configured for implanting beneath a patient's skin for the purpose of tissue, e.g., nerve or muscle, stimulation and/or parameter monitoring and/or data communication. Devices in accordance with the invention include a support structure, typically chair-shaped or bed-shaped, capable of supporting a patient's body while providing a magnetic field to one or more of the implanted devices using one or more coils mounted within for providing power to the implanted devices. Consequently, in a preferred embodiment, a single, generally sequential, charging cycle can charge all of the implanted devices and thus minimize the charge time requirements for a patient and accordingly improve the patient's life style.
摘要:
A method and apparatus for improving visual acuity when providing a visual image from a “high” resolution input device to a “low” resolution output device. The described invention is of particular use when the output device is an array of electrodes as part of a retinal prosthesis used to restore vision to a visually-impaired patient. In that various limitations may, within the foreseeable future, limit the density of such an electrode array (and thus the resolution of the output image), the present invention teaches techniques to assign processed pixel subsets of a higher resolution image to a single electrode. By varying the pixel subsets, e.g., by jittering, and/or altering the processing criteria, the perceived visual acuity may be further improved. Alternatively and additionally, such processing may be further extended to drive neighboring electrodes in combination to thus stimulate virtual electrode sites and thus further enhance visual acuity.
摘要:
A programmable signal analysis device for detecting and counting neurological and muscular events in living tissue that incorporates one or more signal threshold levels to identify an event, a counter to count events, and a timer to determine event frequency as events per unit time. The threshold levels and counter/timer operating modes/parameters are digitally programmable to identify and count events, i.e., electrical signals having defined parameters. Such a circuit is of particular use in a microstimulator/sensor which is capable of being injected into living tissue at the site of interest. The microstimulator/sensor is used to stimulate a neural pathway or muscle and/or to block a neural pathway to alleviate pain or block stimulation of a muscle.
摘要:
An apparatus for treating an infection which may occur in the biofilm which surrounds an implanted cardiac stimulation device, e.g., a cardioverter-defibrillator (ICD) or pacemaker. Such infections are relatively untreatable by conventional antibiotics treatments. Thus, explanting of the implanted devices may be required. Accordingly, the present apparatus provides an electrical treatment that enables a biocide, i.e., an antibiotic, to successfully treat the infection within the biofilm and thus avoid the necessity to explant the device. Furthermore, the present invention provides this electrical treatment in a manner to not interfere with the stimulation pulses of the cardiac stimulation device by alternatively delivering current pulses during atrial and ventricular refractory periods or a high frequency square wave at a frequency that exceeds the frequency response of the heart muscle.
摘要:
A device configured for implantation beneath a patient's skin for the purpose of tissue, e.g., nerve or muscle, stimulation and/or parameter monitoring and/or data communication. Devices in accordance with the invention are comprised of a sealed housing, typically having an axial dimension of less than 60 mm and a lateral dimension of less than 6 mm, containing a power source for powering electronic circuitry within. A placement structure is shown for facilitating placement of the implantable device proximate to neural/muscular tissue.
摘要:
A method and apparatus for protecting an electronic implantable medical device prior to it being implanted in a patient's body. The apparatus affords protection against electronic component damage due to electrostatic discharge and/or physical damage due to improper handling. The apparatus is comprised of a circuit board having a conductive surface for receiving and releasably grasping the electrodes of the medical device to support the device's housing proximate to the surface of the circuit board. Two conductive paths are formed on the circuit board extending between two conductive surfaces for shunting electrostatic discharge currents to prevent such currents from passing through the device's electronic circuitry. The conductive paths include oppositely oriented diodes, preferably comprising diodes which emit light (i.e., LEDs) when current passes therethrough. Additionally, an external monitor/generator is provided to enable functional testing of the medical device.