Abstract: An instrument holder for use alone or in combination with a hose/cable organizer. The holder can be made in several forms; the preferred embodiment being an elongate plastic body with fold-up wing structures carrying opposed sets of instrument receivers such as spring fingers, loops, cups and combinations thereof. The holder may be used alone or in combination with a hose/cable organizer.

Abstract: An organizer for surgical instruments and the like comprising a T-shaped plastic body defining an interior channel having two inlets and an outlets, a cover for the channel which may be hingedly attached to the body or connected by way of snap fittings. A plurality of split cylinder instrument holders are mounted to the top surface of the cover in side-by-side parallel relationship to receive and hold elongate instruments or tools with flexible tubes, hoses or cables gathered and held in the body channel. Two-sided tape may be used to secure the organizer to a surgical drape. The organizer is preferably packaged in a sterile condition inside of a hermetically-sealed plastic package.

Abstract: A switch-type power converter comprising an PET switch operating in a variable duty cycle mode under the control of a Unitrode 3846 integrated circuit controller. Indications of excess input voltage and reverse battery connections are provided by circuits including an element which permanently changes state. A cooling fan mounted on a finned heat sink is operated in a variable speed mode. A single thermistor sensor provides inputs to both the fan speed control and a thermal shutdown circuit connected to shut down the gate drives to the FET switch in the event of a high temperature condition. Another shutdown function is provided in response to an input overvoltage condition by way of an operational amplifier. The converter uses foldback for short circuit protection and is compatible with microprocessor units to selectively provide multiple output voltage levels.

Abstract: A switch-type power converter includes a double FET switch operating in a variable duty cycle mode under the control of a Unitrode 3846 integrated circuit controller. Indications of excess input voltage and reverse battery connections are provided by circuits including an element which permanently changes state. A cooling fan mounted on a finned heat sink is operated in a variable speed mode.

Abstract: A switch-type power converter comprising an FET switch operating in a variable duty cycle mode under the control of a Unitrode 3846 integrated circuit controller. Indications of excess input voltage and reverse battery connections are provided by circuits including an element which permanently changes state. A cooling fan mounted on a finned heat sink is operated in a variable speed mode. A single thermistor sensor provides inputs to both the fan speed control and a thermal shutdown circuit connected to shut down the gate drives to the FET switch in the event of a high temperature condition. Another shutdown function is provided in response to an input overvoltage condition by way of an operational amplifier. The converter uses foldback for short circuit protection and is compatible with microprocessor units to selectively provide multiple output voltage levels.

Abstract: A power converter supplies a charging current to a rechargeable battery responsive to a control module. The control module includes a microcontroller, a memory coupled to the microcontroller and power converter code. The power converter code causes the microcontroller to determine a battery output voltage of the rechargeable battery. The power converter code also causes the microcontroller to provide a control signal, which adjusts the power converter output voltage responsive to the battery output voltage. The control module also provides for a desulfation mode when the power converter is in a storage mode.

Abstract: A system to control the output voltage of a power converter in response to a specific load battery condition. The system contains a power converter, a TCMS interface attached thereto and a controller for selectively and/or adaptably changing the magnitude of converter output voltage. A control module is incorporated in the system to automatically change converter output voltage up or down in response to the load (input) voltage. The module contains a microcontroller to sense the battery (input) voltage process said input voltage with an analog-to-digital converter. The microcontroller is programmed to execute a series of routines to determine the proper charging voltage for the system. Thereafter, the control module communicates this information through the interface of the power converter to cause the power converter to charge at the optimum voltage. In the alternative, a plug-in component containing passive circuitry may be used to manually signal the power converter to charge at a predetermined voltage.

Abstract: A thermal blanket for flowing temperature controlled air upon a patient wherein the blanket is inflated with air and orifices within the blanket permit the air to flow upon the patient. The improvement includes the locating of the air inlet at a central blanket location in the patient's chest region to permit the highest air temperature to be available over the chest region, and the air flow direction produces optimum distribution. The locating of the air hose upon the blanket upper side permits the inflated blanket to insulate the hose from the patient, the portion of the blanket placed over the patient's head is perforated to facilitate forming a head receiving opening, and a transparent barrier may be affixed to the blanket upper side to cover the patient's face during respiration.

Abstract: A switched power converter for a recreational vehicle includes a housing and a switched power supply. The switched power supply has a switch and at least one energy storage component, the switch controlling the supply of power to the energy storage component. The output of the energy storage component is a regulated DC output voltage. A controller generates a switching control signal for controlling the state of said switch. A protection circuit is connected to the controller for protecting the switched power supply from damage resulting when a reverse battery connection is made. The circuit also includes a controller for controlling the pulse-width of the control signals input to the switch. A fan may be provided on the housing which is selectively enabled to move cooling air over the switched power supply only when a detected temperature exceeds a threshold level. The controller may be disabled when an ambient temperature exceeds a threshold level.

Abstract: A switched power converter for a recreational vehicle includes a housing and a switched power supply. The switched power supply has a switch and at least one energy storage component, the switch controlling the supply of power to the energy storage component. The output of the energy storage component is a regulated DC output voltage. A controller generates a switching control signal for controlling the state of said switch. A protection circuit is connected to the controller for protecting the switched power supply from damage resulting when a reverse battery connection is made. The circuit also includes a controller for controlling the pulse-width of the control signals input to the switch. A fan may be provided on the housing which is selectively enabled to move cooling air over the switched power supply only when a detected temperature exceeds a threshold level. The controller may be disabled when an ambient temperature exceeds a threshold level.

Abstract: An air diffuser system for a medical thermal blanket wherein air forced over an elongated heat exchanger is substantially uniformly distributed over the heat exchanger and a thermal sensor located downstream over the heat exchanger to eliminate localized hot and cold "spots" and permit accurate temperature measurement of the air and provide an effective exchange of heat between flowing air and the heat exchanger, the apparatus of invention is characterized by its concise configuration and dimensions.

Abstract: A housing for electrical devices such as connectors, circuit breakers, and face panels. A cable outlet port member is separate from the housing to provide unidirectional resistance to movement of a cable relative to the housing. The non-integral relationship permits the members to be replaced in the event of damage. A busbar formed by a stamping and bending operation is also disclosed for use in combination with conventional circuit breakers.

Abstract: A housing for electrical devices such as connectors, circuit breakers, and fuse panels. A cable outlet port member is separate from the housing to provide unidirectional resistance to movement of a cable relative to the housing. The non-integral relationship permits the members to be replaced in the event of damage. A busbar formed by a stamping and bending operation is also disclosed for use in combination with conventional circuit breakers.