Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 4827927 | Apparatus for changing the output power level of an electrosurgical generator while remaining in the sterile field of a surgical procedure An electrosurgical generating system and method including an electrosurgical generator; and a handpiece including an active electrode connected to the electrosurgical generator for applying electrosurgical current from the generator to a patient, the hand... | 05/09/1989 |
| 4823791 | Electrosurgical probe apparatus A disposable bipolar electrosurgical probe which can be readily applied to the tissue to be treated, then discarded. The probe comprises an elongated substrate member having a peripheral surface of dielectric material and a longitudinal axis extending bet... | 04/25/1989 |
| 4818954 | High-frequency generator with automatic power-control for high-frequency surgery A high-frequency generator having automatic power-control for use in high-frequency surgery. The frequency of a high-frequency generator is adjustable by electronic circuit brought by a control circuit to a value such that at the output of the power ampli... | 04/04/1989 |
| 4811733 | Electrosurgical device A device for electrosurgery includes a curved-tip probe adapted for insertion into an incision, and a resiliently deformable electrode movable longitudinally within the probe so that the distal end can be projected in an offset direction out of the tip of... | 03/14/1989 |
| 4793345 | High voltage protection circuit for ultrasonic cataract remover A phacoemulsification probe for ultrasound removal of an eye lens (for example a lens having a cataract) is provided with a safety circuit for prevention of shock to the patient. The probe includes a piezoelectric sound transducer electrically powered wit... | 12/27/1988 |
| 4793346 | Process and apparatus for harvesting vein A section of a vein to be used for example in aorto-coronary bypass surgery, is harvested by making two incisions severing the vein at opposite ends of the section to be removed. A plastic guide is inserted in one incision, passed through the length of th... | 12/27/1988 |
| 4788977 | High-frequency surgical instrument Described is a safety circuit for a high-frequency surgical instrument for the monopolar cutting and coagulating of biological tissue, where the neutral electrode is high-frequency-grounded through a capacitor. The safety circuit monitors the low-frequenc... | 12/06/1988 |
| 4785807 | Electrosurgical knife An electrosurgical knife includes a stainless steel blade whose surface is abraided or etched, a first coat of primer material applied over the blade, where the surface of the primer material is also abraided or etched, and a second coat of non-stick fluo... | 11/22/1988 |
| 4742815 | Computer monitoring of endoscope An endoscope is modified so it can be connected to a computer. Thus all the movements of the said endoscope is monitored and displayed on the computer screen in color graphic form. When surgery is performed using the said endoscope there are limits within... | 05/10/1988 |
| 4739759 | Microprocessor controlled electrosurgical generator A microprocessor controlled electrosurgical generator provides plural ground-isolated and mutually isolated monopolar r-f cutting signals for respective surgical pencils to permit plural surgeons to use the same generator while maintaining independent con... | 04/26/1988 |
| 4727874 | Electrosurgical generator with high-frequency pulse width modulated feedback power control A pulse width modulation technique regulates the output power of each cycle of a radio frequency surgical signal of an electrosurgical generator. The delivered power of the surgical signal is determined by multiplying the sensed current and the sensed vol... | 03/01/1988 |
| 4718419 | Snare assembly for endoscope A snare assembly is disclosed which is inserted into a region of interest of a human body through a channel of an endoscope. The snare assembly comprises at least one flexible tube, a folded snare which is so inserted into the flexible tube as to be movab... | 01/12/1988 |
| 4716897 | Electrosurgical apparatus An electrosurgical apparatus includes a radio frequency (RF) power source for supplying an RF signal to an object to be cauterized through a treatment tool and an electrode plate. A dummy load with a certain impedance is coupled in the current path from a... | 01/05/1988 |
| 4712544 | Electrosurgical generator An electrosurgical generator for use with a living being. The electrosurgical generator is provided with a circuit for determining real power output being delivered to a handpiece. A switching mechanism is also provided to allow alternate selection of the... | 12/15/1987 |
| 4711239 | Electrosurgical instrument An electrosurgical instrument of the invention comprises a body (3) and, arranged coaxially, a passive electrode (2) and an active electrode (1), of which the outer electrode is associated with the body (3) and the central electrode is traversable with re... | 12/08/1987 |
| 4686979 | Excimer laser phototherapy for the dissolution of abnormal growth Removal of abnormal human tissue with reduced thermal damage is achieved by selecting a laser having a wavelength in the order of 290-400 nm, orienting a laser-transmitting glass member toward the abnormal tissue and directing the laser through the glass ... | 08/18/1987 |
| 4682596 | Electrosurgical catheter and method for vascular applications The method for resolving atherosclerotic plaque buildup and/or eroding unwanted tissue in a blood vessel includes the steps of: inserting an electrode in and along the lumen of a blood vessel; manually manipulating said electrode through the blood vessel;... | 07/28/1987 |
| 4658815 | High-frequency electrosurgical unit with timed safety shut down interlock A supplementary acoustic warning signal is provided for a high-frequency electrosurgical unit which sounds only after the lapse of an interval set by a first delay circuit shows that one of the high-frequency generators in the unit remains active longer t... | 04/21/1987 |
| 4658819 | Electrosurgical generator An electrosurgical generator having a source of electrosurgical energy connected to a patient and including control circuitry for decreasing the output power from the source with increasing patient impedance, the rate of power decrease being substantially... | 04/21/1987 |
| 4658820 | Electrosurgical generator with improved circuitry for generating RF drive pulse trains An electrosurgical generator including a patient circuit including an active electrode and a return electrode; a pulse train generating circuit an M×N storage device having M memory locations where M>1 and where each location contains N storage positions... | 04/21/1987 |
| 4651280 | Electrosurgical control system using tissue conductivity A Microprocessor controlled Relay is between and in series with the Electro-Surgical Unit and the NiCr loop, to control the output power of the E.S.U. during the operation of Transurethral Resection. The predetermined parameters may input to the Microproc... | 03/17/1987 |
| 4632109 | Circuitry for processing requests made from the sterile field of a surgical procedure to change the output power level of an electrosurgical generator An electrosurgical generating system including an electrosurgical generator; a handpiece including an active electrode connected to the generator for applying electrosurgical current from the generator to a patient; and an initializing device or circuit f... | 12/30/1986 |
| 4580562 | Electrosurgical apparatus An electrosurgical apparatus comprises a high frequency power generator, a high frequency transformer, a handpiece for mounting an electrode, and a connecting cable between the generator and the handpiece. In order to provide an automatic adaptation or ad... | 04/08/1986 |
| 4550727 | Electrosurgical generator An electrosurgical generator, having particular utility in surgical procedures on human joints, is provided with an output impedance in the range of 600 to 2,500 Ohms in order to efficiently transfer energy to the high impedance joint. The relatively high... | 11/05/1985 |
| 4422457 | Safety device for medical treatment system A medical treatment system provided with a safety device which prevents laser beams from being unnecessarily projected on a normal coeliac tissue around an affected coeliac region requiring medical treatment from a laser knife apparatus. When the operator... | 12/27/1983 |
| 4271837 | Electrosurgical apparatus The present invention relates to an electrosurgical cutting device for the cutting and/or coagulation of tissue with RF current. A cutting electrode and a patient plate are connectable to the terminals of a RF generator. A control system, using a conditio... | 06/09/1981 |
| 4198957 | Method of using an electrically heated surgical cutting instrument A surgical cutting instrument includes an electrically heated cutting edge and an automatic control system for maintaining the cutting edge at a constant high temperature for sterilizing the blade, cutting tissue, and cauterizing the incised tissue to red... | 04/22/1980 |
| 4114623 | Cutting and coagulation apparatus for surgery A device and system for the cutting and/or coagulation of human tissue with the use of high frequency currents. This invention is used to cut materials similar to the human tissue which can emit steam or gassy products when sufficiently heated. It control... | 09/19/1978 |
| 4024467 | Method for controlling power during electrosurgery A control circuit forelectrosurgical units establishes a particular output signal to patient electrodes in response to condition of the patient electrodes. The duty cycle of the output signal is reduced when the patient electrodes are not in contact with ... | 05/17/1977 |
| 3980861 | Electrically heated miniature thermal implement A miniature thermal wire stripper having a pair of heater elements in the form of hollow tubes each with a heater coil disposed therein and affixed to a pair of spring loaded handles for contacting and subsequently melting through thermal (e.g. thermoplas... | 09/14/1976 |
| 3964487 | Uncomplicated load-adapting electrosurgical cutting generator A high frequency signal for cutting human tissue is generated by common-emitter configured oscillator circuit that is adapted to maintain the cutting signal relatively constant in spite of impedance variations in the load caused by variations in the condu... | 06/22/1976 |
