Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7797046 | Percutaneous neurostimulator for modulating cardiovascular function A neurostimulation device includes an external neurostimulator worn by a patient using a bracing element that braces a portion of the patient's body. The external neurostimulator delivers neurostimulation to modulate a cardiovascular function of the patient. In one ... | 09/14/2010 |
| 7403819 | Parasympathetic nerve stimulation for control of AV conduction Exemplary methods for affecting conduction and/or operation of the AV node and/or AV bundle. Various exemplary methods include delivery of one or more stimulation pulses to affect conduction and/or operation of an AV node and/or AV bundle. Such delivery optionally s... | 07/22/2008 |
| 7373207 | Treatments for a patient with congestive heart failure The invention is directed to devices for two minimally invasive therapeutic procedures, particularly for patients with congestive heart failure. One procedure involves providing a valve to form a passageway through the patient's left ventricular wall at the apex of ... | 05/13/2008 |
| 7277750 | Method and apparatus for anti-tachycardia pacing and defibrillation An implantable cardioverter/defibrillator (ICD) includes an Anti-Tachycardia Pacing Before Charge (ATP-BC) mode according to which one or more high-voltage capacitors for storing defibrillation energy are charged in preparation of delivering a defibrillation shock o... | 10/02/2007 |
| 6968231 | High voltage converter for an implantable medical device A high voltage converter circuit for an implantable cardiac device. The circuit includes a plurality of transistors that are connected in parallel to a battery and the primary winding of a transformer. A switching element is connected to the circuit so as to periodi... | 11/22/2005 |
| 6915169 | Extendable and retractable lead having a snap-fit terminal connector A lead having an extendable and retractable fixation mechanism has a rotating terminal pin at the terminal end which rotates the fixation mechanism at the distal end. As the terminal pin is rotated, the fixation mechanism is extended or retracted from the distal end... | 07/05/2005 |
| 6289246 | High compliance output stage for a tissue stimulator The output stage of a tissue stimulating apparatus, for example a cochlear implant prosthesis, operating at a low supply voltage (35) incorporates a multiplier circuit (54, 62, 63, 64) for ensuring that voltage compliance is maintained in the event that h... | 09/11/2001 |
| 5741306 | Patient-worn energy delivery apparatus The present invention provides for a patient-worn energy delivery apparatus for imparting electrical therapy to the body of a patient responsive to an occurrence of a treatable condition. The apparatus includes a voltage converter for converting electrica... | 04/21/1998 |
| 5423866 | Constant charge pacemaker A pacemaker has a pulse source for delivering heart stimulation pulses to at least one heart stimulation electrode which includes a source for charging a charge storage element with a prescribed amount of charge for each heart stimulus. The charge storage... | 06/13/1995 |
| 5092330 | Analog to digital converter A multi-mode, adaptable, implantable pacemaker is described including a microprocessor and memory programmed or capable of being programmed with a variety of processes for stimulating the patient's heart and/or for sensing and transmitting to a device ext... | 03/03/1992 |
| 5076272 | Autocontrollable pacemaker with alarm An apparatus for administering electrotherapy, such as a pacemaker, having an alarm system including a relatively small alarm electrode affixed to the external surface of a non-conductive portion of the case of the apparatus, such as the neck. The apparat... | 12/31/1991 |
| 5002052 | System and method for detection and treatment of ventricular arrhythmias A method for detecting and treating ventricular tachyrhythmias of a patient's heart includes the steps of selectively dividing the heart rate continuum into regions including at least two classes of tachycardia, contiguous to each other and of progressive... | 03/26/1991 |
| 4913145 | Cardiac pacemaker with switched capacitor amplifiers A cardiac pacemaker has a sense amplifier responsive to signals representative of cardiac activity for passing signal components lying in a selectively variable pass band and for selectively varying the gain of the passed signal. A pair of signal comparat... | 04/03/1990 |
| 4880004 | Implantable cardiac stimulator with automatic gain control and bandpass filtering in feedback loop An implantable cardiac stimulator for detecting and treating cardiac arrhythmias includes a sense amplifier responsive to sensed cardiac signals for detecting and distinguishing normal and abnormal cardiac activity within the sensed signals. The sense amp... | 11/14/1989 |
| 4830006 | Implantable cardiac stimulator for detection and treatment of ventricular arrhythmias An implantable cardiac stimulator integrates the functions of bradycardia and anti-tachycardia pacing-type therapies, and cardioversion and defibrillation shock-type therapies. The stimulator is programmable to provide a multiplicity of hierarchical detec... | 05/16/1989 |
| 4741342 | Cardiac pacemaker with selective unipolar/bipolar pacing A dual chamber cardiac pacemaker is programmable for either unipolar or bipolar pacing of the atrium or the ventricle, independently of the pacing mode for the other chamber. Transistor switches are utilized for selectively connecting the various anodic e... | 05/03/1988 |
| 4712556 | Pacemaker and method for ventricular rate limit operation and termination of pacemaker mediated tachycardia A microprocessor-controlled pacemaker is programmed to extend an atrial refractory interval in response to the detection of events which could initiate a pacer sustained tachycardia. The extended atrial refractory interval ensures that a spurious atrial e... | 12/15/1987 |
| 4624260 | Pacemaker with conditional atrial tracking capability An implantable microprocessor-controlled dual chamber heart pacemaker is programmed to control the timing of the pacing of the ventricle in response to high rate atrial signals. The microprocessor operates in conjunction with an atrial timer to detect atr... | 11/25/1986 |
| 4585006 | Cardiac pacer having stimulation threshold measurement circuit An external pacer having a plurality of user-selectable output current levels includes a user-actuable push button switch for reducing the selected output current level by a factor of 10. By observing the absence or presence of an R-wave while operating a... | 04/29/1986 |
| 4585001 | Cardiac pacer signal detector A battery powered external pacer operable in fixed-rate and demand modes includes a sense amplifier having an active notch filter system for attenuating power line interference. The filter system comprises four separate data channels each including a tran... | 04/29/1986 |
| 4340062 | Body stimulator having selectable stimulation energy levels A body implantable stimulator for providing stimulation signals having selectable energy levels. The stimulator provides a series of one of a predetermined plurality of independent output initiate signals and responds to those signals to provide stimulati... | 07/20/1982 |
| 4321928 | Heart pacemaker In the exemplary embodiments, the processing circuit for supplying the stimulation pulses comprises a series arrangement of capacitors which are chargeable in parallel and dischargeable serially. The goal of the disclosure, given such a heart pacemaker, i... | 03/30/1982 |
| 4300566 | Cardiac pacer circuit An electronic switching circuit for use in a demand-type cardiac pacer for (1) allowing the amplitude of the stimulating pulses to be selected, (2) ensuring a high input impedance for the heartbeat sensing amplifier, and (3) ensuring a low recovery time f... | 11/17/1981 |
| 4261365 | Demand-type cardiac pacer having dynamic impedance switch An improvement in a demand-type heart pace system in which the normally high input impedance of the R-wave sensing amplifier is reduced for a predetermined time interval following the generation of a heart stimulating impulse such that the charge on the p... | 04/14/1981 |
| 4203448 | Programmably variable voltage multiplier for implanted stimulator A free running oscillator clocks a counter, which produces stimulation control signals at a predetermined counter. An output stage includes transistors, energized by the counter, to issue stimulating pulses having a voltage equal to that across a capacito... | 05/20/1980 |
| 4056105 | Pulse generator A DC pulse generator, specifically suitable for application as a cardiac pacemaker having a substantially constant energy output which is independent of the output load. The output pulse is derived from a capacitive reactance which is partially discharged... | 11/01/1977 |
| 4055189 | Condition monitoring pacer A pacer for cardiac pacing and condition monitoring wherein the electrical characteristics of the pacer are altered upon a temporary or permanent change in monitored conditions, such as loss of capture or failure to sense. The monitor acts to provide both... | 10/25/1977 |
| 4050004 | Cardiac pacer including controlled voltage multiplier A cardiac pacer including a controlled voltage multiplier adapted for connection to a source of voltage to be multiplied and a plurality of parallel voltage-developing branches each including a capacitor. A pair of output terminals, at least one of which ... | 09/20/1977 |
| 4041953 | Cardiac pacer circuit A battery powered electronic circuit adapted for surgical implantation in the body of a patient suffering from intermittent heart block for providing electrical stimulation of the heart muscle upon detection of failure of normal heart activity. The circui... | 08/16/1977 |
| 3971389 | Pacemaker low current pulse generator A low current, low voltage impulse generating system for cardiac pacers using a complementary multivibrator in combination with an RC network which operates in an astable, supply voltage insensitive mode to produce fixed rate pacing pulses.... | 07/27/1976 |
| 3941135 | Pacemaker with biofuel cell An improved heart pacemaker of the type which includes a stimulating electrode and a counter electrode, a pulse generator and which has an implantable glucose/oxygen biofuel cell as an energy supply, in which pacemaker the area of the glucose electrode of... | 03/02/1976 |
