摘要:
In a method of implanting an electrode of an electronic stimulator device into a pelvic floor muscular structure of a patient, a stimulation lead having a proximal end and a distal end comprising an electrode is provided. The distal end of the stimulation lead is fed along a path, which is adjacent the pubic symphysis of a patient, toward a pelvic floor muscular structure of the patient. The distal end of the stimulation lead is then fed into the pelvic floor muscular structure of the patient. In one embodiment, the pelvic floor muscular structure comprises the external urinary sphincter of the patient. In accordance with other embodiments, the pelvic floor muscular structure comprises one of the external anal sphincter, the levator ani muscle, the puborectalis sling muscle and prostate tissue.
摘要:
A valvuloplasty system comprises a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves. The shock waves propagate through the liquid and impinge upon the valve to decalcify and open the valve.
摘要:
Described herein are implantable composites, kits comprising the composites, implant devices comprising the composites, and methods of making and using same, including point of use methods.
摘要:
An ECT system capable of focusing the electrical signals on a specific portion of the patient's brain is provided. The ECT system includes a means of applying unidirectional electrical signals and asymmetric electrodes for focusing the signals on the patient. A method of titrating an electro-convulsive therapy (ECT) system and a method of operating an ECT system are also provided. The method includes setting an initial current value, administering an ECT signal to the patient, determining if the seizure threshold has been achieved, and repeating as necessary until the seizure threshold is achieved.
摘要:
An ECT system capable of focusing the electrical signals on a specific portion of the patient's brain is provided. The ECT system includes a means of applying unidirectional electrical signals and asymmetric electrodes for focusing the signals on the patient. A method of titrating an electro-convulsive therapy (ECT) system and a method of operating an ECT system are also provided. The method includes setting an initial current value, administering an ECT signal to the patient, determining if the seizure threshold has been achieved, and repeating as necessary until the seizure threshold is achieved.
摘要:
Health-sensing and health-action devices and systems are generally described. The health-sensing device may include one or more of a sensor, a filter, and a transmitter. The sensor may be configured to sense one or more factors relating to an indicator of a health related condition or occurrence such as sleep apnea and may include one or more microphone devices, accelerometers, and/or MEMs devices. The filter may be configured to evaluate a signal from the sensor and determine when the indicator has been detected. The transmitter may be arranged for initiating a transmission based on a signal from the filter. The health-action device may be configured for responding to an indicator of a health related condition or occurrence of a user and may include one or more of a receiver, a processor, and a responder.
摘要:
Described herein are implantable composites, kits comprising the composites, implant devices comprising the composites, and methods of making and using same, including point of use methods.
摘要:
A method of treating a patient includes administering an electroconvulsive therapy (ECT) stimulus to the patient. The current is greater than about 0.9 ampere or 1.0 ampere, or is between about 1.0 and about 2 amperes. The energy delivered is about 100 Joules or less across an impedance of 200 ohms. The stimulus may have a pulsewidth between about 0.5 and about 2.0 msec and/or a frequency in the range of about 10 to about 180 Hz, or the stimulus may have a pulsewidth between about 0.2 and about 0.499 msec and/or a frequency in the range of about 15 to about 300 Hz. An apparatus for ECT comprises a generator adapted to deliver such an electroconvulsive therapy stimulus to a patient. A method of calculating ECT dose comprises multiplying a charge to be delivered by the current (or voltage) to an exponential power between 2 and 4.
摘要:
A method for determining a cardiac shock strength, for example the programmed first-therapeutic shock strength of an implantable cardioverter defibrillator (ICD), including the steps of sensing a change in a T-wave of an electrogram with respect to time such as the maximum of the first derivative of a T-wave of an electrogram; delivering a test shock by (i) delivering a test shock at a test-shock strength and at a test-shock time relating to the maximum of the first derivative of the T-wave with respect to time; and (ii) sensing for cardiac fibrillation. If fibrillation is not sensed, test-shock delivery is repeated at the same test-shock strength and at specific, different test-shock times relating to the maximum of the first derivative of the T-wave. If fibrillation is still not sensed, the shock strength is decreased and test shocks are repeated at the same specific test shock times relative to the maximum of the first derivative of the T-wave. And if fibrillation is sensed, the programmed therapeutic shock strength of the ICD is set as a function of the incrementally greater test-shock strength. Also disclosed is an apparatus for selecting a programmed first-shock strength of an ICD, including a shock subsystem for delivering therapeutic shocks and test shocks to the heart, and a ULV subsystem connected to the shock subsystem, to provide test shocks of test-shock strengths and at test-shock times relating to the maximum of the first derivative of the T-wave with respect to time, and to determine the therapeutic shock strength of the ICD as a function of the test-shock strengths.
摘要:
A variable rate defibrillator charging circuit includes a power transformer that accepts an internal battery output and the output from an AC-to-DC converter on separate primary windings. The secondary winding of the transformer is coupled through a rectifier to a storage capacitor. The transformer operates in a fly-back mode whereby energy is discharged into the storage capacitor when the power supplies discontinue charging the transformer. After energy in the transformer is discharged into the storage capacitor, the power supplies are reactivated, recharging the transformer. The separate primary windings of the transformer provide a fast, reliable, low cost means for charging the storage capacitor with multiple power supplies. The AC power source feeding the AC-to-DC converter is detachable allowing the defibrillator to be operated remotely whereby the storage capacitor is charged solely from the internal battery. The charging circuit monitors the output voltage levels of both the battery and the AC-to-DC converter and enables or disables the power supplies in accordance to their ability to charge the storage capacitor within a predetermined amount of time. The energy in the storage capacitor, which is eventually discharged into a patient, is monitored to prevent overcharging.