Assignee: MDT Corporation

Location: Torrance, CA
No. of patents: 38

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Number	Title	Issue Date
5480623	Non-recirculating collection system for sterilizer effluent The invention provides a remote non-recirculating steam and condensate collection system for sterilizer effluent. The system includes a cooling tank, apparatus for disposing of collected effluent, and the associated structures which allow for transfer of ...	01/02/1996
5467951	Baseplate configuration An ergonomically designed professional services chair baseplate that facilitates ease of operation for both the service provider and client. A narrow area is provided at the center section of the baseplate such that the baseplate does not protrude beyond ...	11/21/1995
5405188	Mechanical chair An adjustable chair, such as a dental patient chair includes a chair back pivotally connected to a frame and mechanically linked to a travelling seat assembly so that as the chair back is pivoted, the distance between the back and seat assembly increases ...	04/11/1995
5393490	Process for dry sterilization of medical devices and materials Articles which it is intended to sterilize are placed into a confined volume and are subjected to neutral species of an electrical discharge while maintaining the volume glowless and substantially field free by interposing a barrier between the articles a...	02/28/1995
5391361	Condensate separator A condensate separator includes a vertically oriented cylindrical body with an inlet at its bottom and an outlet at its top. The cross-section of the body is at least an order of magnitude larger than the cross-section of the inlet....	02/21/1995
5368821	Sealable sterilizer cassette A sterilizing cassette system is disclosed. A sealed container (cassette) is provided and configured to receive an article to be sterilized (i.e. a load). A sealing member, such as a plunger, is associated with the cassette at an opening formed in the cas...	11/29/1994
5366693	Air/steam/liquid exhaust device for single cycle pressure vessel A pressure vessel in which the air steam and liquid exhaust systems are combined and wherein all exhaust systems are directed through a water reservoir, using a single control valve and a temperature/pressure sensor in the system....	11/22/1994
5348711	Dental handpiece sterilizer A dental handpiece sterilizer includes a sterilization chamber with an internal manifold system having outlet connectors into which dental handpieces can be plugged. A sterilant vapor introduced to the manifold flows through the dental handpieces coupled ...	09/20/1994
5342097	Quick disconnect multi-line connector in a dental system A quick disconnect multi-line utility connector including a first body member configured and sized to permit passage, end to end, through the hollow interior of an upstanding tubular mounting post. The first body member is connected to a second body membe...	08/30/1994
5334018	Dental control unit with removable cover A dental control unit for use by dentists and having a base, a housing on the base to enclose control structure for dental handpieces and connections for conduits interconnecting the control structure and the handpieces and a removable top cover that is f...	08/02/1994
5322439	Dental control unit with removable handle A dental control unit of the kind pivotally mounted on a swinging arm and having a support base for operatory equipment and a housing covering said equipment and base includes a pair of fully interchangeable handles, releasable mounted to the bottom of th...	06/21/1994
5313738	Closure for doors used with small and medium sized pressure vessels Hinge and latching structures associated with a door for a pressure vessel provides a tight and competent seal when the door is in sealed relationship with the opening of the vessel. The latching structure includes coupling structures which provide increa...	05/24/1994
5297961	Dental control unit with articulated whip arms A dental control unit having conduit-carrying whip arms pivotally mounted on a base so as to leave top and side surfaces of a housing covering the base entirely free of seams or openings where oral cavity spray can enter; and conduits for dental handpiece...	03/29/1994
5277875	Self-contained sterilizer with duty-cycle heater A microprocessor-controlled, self-contained steam sterilizer is disclosed. Once the steam exposure phase is complete in the sterilizer, the microprocessor is programmed to operate the vaporizing heater in a low-power duty cycle to utilize the vaporizing h...	01/11/1994
5273157	Handle for surgery lamp Handle for manipulating a lamp above an operating table including a grip portion, a connecting portion above the grip portion for connection to such lamp, said handle including radially outwardly projecting support means between the grip portion and the c...	12/28/1993
5258921	Automated purge control of sterilizers Apparatus for and method of enhancing the safety of a vapor sterilizer using a programmed EEPROM signal to show when sterilant is present in the sterilizer chamber. The EEPROM signal electrically controls a door lock on a sterilizer door to prevent injury...	11/02/1993
5185709	Apparatus and method for measuring pressure changes within pressure vessels Apparatus and methods for detecting pressure changes within the chamber of a pressure vessel are disclosed. The apparatus includes a pressure transducer which is gauge-referenced to atmospheric pressure and has bi-directional capability of determining pre...	02/09/1993
5167658	Method and apparatus for electrosurgical measurement An improved method and apparatus for measuring the total energy delivered to a patient during an electrosurgical procedure. An electrosurgical target (the patient) is positioned atop a dispersive plate constituting a first electrode. The patient is includ...	12/01/1992
5164161	Proportional temperature control of a sterilizer Apparatus and methods for proportional control of heating of a sterilizer chamber are disclosed in the application. A sterilizer chamber has heaters mounted on the walls, a wall temperature sensor and a chamber temperature sensor. The controller is operab...	11/17/1992
5149507	Method of venting a sterilizer The application is directed to methods and apparatus for venting a pressurized sterilizer chamber having a liquid load within it. A sterilizer chamber is provided with a pressure sensor for sensing the chamber pressure and a vent channel with an associate...	09/22/1992
5145642	Load compensated water fill for a table top sterilizer In an unplumbed sterilizer, a measured quantity of liquid is introduced into a partially evacuated chamber in a dump period. The liquid quantity is automatically controlled by closing a valve in the additional conduit upon the occurrence of either (a) the...	09/08/1992
5122344	Chemical sterilizer system A chemical sterilizer system for sterilizing items by vaporizing a liquid chemical sterilant in a sterilizing chamber. Pre-evacuation of the sterilizer chamber enhances the sterilizing activity. Sterilant is injected into the sterilizer chamber from a pre...	06/16/1992
5109174	Ultrasonic cleaner An improved ultrasonic cleaner is disclosed. Transducers are attached to a tank to vibrate liquid within the tank. A drive circuit is linked with the transducers to cause the transducers to oscillate at ultrasonic frequencies. The drive circuit includes a...	04/28/1992
5098200	Dual range temperature monitoring circuits A temperature monitoring system provides a first, coarse temperature output signal, and a second, fine temperature output signal based on the first, coarse output signal. The fine output signal has a higher resolution than the coarse output signal, and pe...	03/24/1992
5026524	Apparatus for subjecting a load to a constant temperature below 100° Method and apparatus for providing a low temperature environment at a substantially constant and uniform temperature. A closed chamber is provided with an inlet and outlet. The chamber is operated at subatmospheric pressure. Steam is introduced into the c...	06/25/1991
5022898	Exhaust filter system for sterilizers A filter system for the exhaust stream of a chemical sterilizer includes a liquid trap filter directly upstream from a canister filter and proximity switch for monitoring the presence or absence of the canister filter....	06/11/1991
5001866	Gasket assembly A seal for a pressure chamber is provided. The seal is formed by welding a loop of rigid tubular material to the perimeter of the entry of a pressure chamber, conforming to the shape of the parameter. A side wall of this tubing is machined off to produce ...	03/26/1991
4999165	Pressure vessel with improved gasket valve The disclosed pressurized vessel has a door seal which is pressurized by a steam supply. A diaphragm actuated solenoid valve is connected between the steam supply and the door seal. The diaphragm solenoid valve precludes the door seal from depressurizing ...	03/12/1991
4993057	X-ray tube head assembly with sterilizable handle A sterilizable removable handle is provided in associated with an X-ray tube head assembly to permit manipulation of the assembly within a sterile field while avoiding contamination of an operator's hand....	02/12/1991
4984261	X-ray tube head assembly Cooling oil for an X-ray tube head assembly is contained within a resilient elastomeric envelope together with a high voltage assembly....	01/08/1991
4973449	Sterilization method Heat-labile articles are sterilized by subjecting them to pulses of sporicidal vapors and maintaining them for a holding period in contact with such vapors....	11/27/1990
4971761	Temperature control method for an ethylene oxide sterilization cycle Cooling water is circulated through the heating water jacket of a gas sterilizer during the initial gas pressurization phase to reduce the temperature rise within the sterilization chamber caused by the heat of compression of the gas....	11/20/1990
4971764	Method and apparatus for venting sterilizers having a liquid load The venting mechanism for discharging steam from a sterilizing chamber has a variable effective orifice area controllable in response to decreasing pressure. The throughput of the venting mechanism increases as the pressure decreases, thereby compressing ...	11/20/1990
4944919	Low temperature sterilizer An apparatus for exposing objects to saturated steam at subatmospheric pressure is computer controlled during a conditioning phase prior to the commencement of an exposure phase to apply vacuum to a sealed chamber while steam is simultaneously being injec...	07/31/1990
4938761	Bipolar electrosurgical forceps A bioplar electrosurgical forceps carries a thermocouple junction at the distal end of each of two mutually opposed prongs. The junctions are formed by welding a constantan wire directly to the ferrous metal prongs, thereby avoiding the need for electrica...	07/03/1990
4928211	Lighthead assembly A multi-beam surgical lighthead includes a central pod and multiple peripheral pods mounted on pivots and mechanically linked to provide synchronized adjustment of the convergence portion of the peripheral lighthead upon the axial beam of the central pod....	05/22/1990
4867897	Germicidal iodophor composition A germicidal composition capable of action as an antiseptic or as a disinfectant contains a solvent, iodine and an anionic surfactant, such as nonylphenoxy(ethyleneoxy)4 ethanol sulfate. An admixture with sodium lauryl sulfate is preferred. Sai...	09/19/1989
4753188	Heat history indicator A process monitoring heat history indicator in the form of a mixture of a first particulate component with a first characteristic color and a second particulate component with a second characteristic color. The first component includes a solvent system wh...	06/28/1988

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Assignee: MDT Corporation