Abstract: An air flow and filtration control system in the form of a headgear which is worn by a physician during a surgical procedure, a technician during an assembly process, or any other user wherein a controlled air flow and air filtration is required or desired. The flow through system includes a relatively rigid, open frame, skeleton headgear structure which substantially surrounds the head of the wearer. The structure includes ductwork and is adjustably attached to a headband formed of straps which are adapted to snugly engage the head of the wearer.A plurality of fans or other air moving devices are mounted in the structure. The fans are positioned to move air through the integral ducts in the structure. A shroud (or hood) is draped over and attached to the structure in such a fashion as to completely cover the structure and to cover at least a portion of the wearer in order to maintain sterile or controlled conditions.

Abstract: A connector is provided between an I.V. or syringe supply and a Y-tube for feeding liquid medication to a patient. The connector is an integrally formed tube having a recessed needle which is factory mounted into the distal end of the connector. At its proximal end, the tube wall of the connector defines a slot which, when rotated, will engage and form a secure lock with the sidearm portion of the Y-tube. A sterile septum is mounted within the Y-tube, and the needle penetrates the septum during use, thereby maintaining sterility. Also, since the needle is recessed, asccidental needle sticks will be reduced.In another embodiment, the connector tube wall defines an elongate recess, and a slotted closure cap is mounted at the proximal end of the connector. The connector is fitted over the Y-tube so that the cap slot and recess coincide with the junction of the Y-tube sidearm and the Y-tube.

Abstract: A combination catheter connector and clamp provided with an interlocking hook and post for locking two connector parts together. A manifold separates the lumens of a multilumen catheter into separate arms which can be closed or opened by a pushbutton clamp. A silicone block is used between the engagement portions of the connector parts.

Abstract: A tire pressure warning system, including a valve stem-mounted tire pressure detector, including means for sensing the tire pressure and means for transmitting an encoded signal when the tire pressure drops below a predetermined level, and a receiver that can receive and recognize the encoded signal, differentiate between various encoded signals, and provide a warning signal to the vehicle operator. The inside of the tire pressure detector is hermetically sealed; inside the sealed portion is a unique on/off switch that can be externally actuated without compromising the seal.

Abstract: A small plastic connector is provided with a unique electrical contact mounted in one jaw of the connector to mate with an angled edge on the other jaw of the connector to crimp and securely grip a thin, flat, flexible electrode in the connector while making good electrical contact. The jaws and the contact are further constructed so that the conductive surface on the electrode is pressed into engaging with a large contact surface.

Abstract: There is disclosed an electrode construction of the type including a terminal arrangement and support structure for said terminal arrangement, said support structure adapted for the transcutaneous application of the electrode to a patient. The support structure may be fabricated from a layer of foam or microporous material, or plural layer employing a combination of both, or from a layer of conductive adhesive. The terminal arrangement may be of single terminal or multi-terminal design, and is provided by a conductive pattern printed on a semi-flexible plastic-like sheet, wherein said pattern is printed with a conductive ink of the type employing a conductive metal, such as silver, in a binder composition. The disclosure also contemplates novel structure for connection of the electrode to a lead wire, as well as several novel, overall designs for the construction of the electrode support means.

Abstract: An electrical terminal for making conductive connection with a printed circuit conductor on one side of a dielectric sheet comprises a wiper section adapted to make contact with the printed circuit conductor and a blade section adapted to make contact with the opposite side of the sheet, the wiper section being struck from the blade section but leaving a part of the wiper section within the perimeter of the strike out opening so that upon insertion of the sheet between the blade and wiper sections, those sections spread apart and apply opposed clamping pressure to opposite sides of the sheet. The terminals are intended to provide electrical connections between a wiring harness and skin contact electrodes for measuring physiologic functions.

Abstract: There is disclosed an electrode construction of the type including a terminal arrangement and support structure for said terminal arrangement, said support structure adapted for the transcutaneous application of the electrode to a patient. The support structure may be fabricated from a layer of foam or microporous material, or plural layer employing a combination of both, or from a layer of conductive adhesive. The terminal arrangement may be of single terminal or multi-terminal design, and is provided by a conductive pattern printed on a semi-flexible plastic-like sheet, wherein said pattern is printed with a conductive ink of the type employing a conductive metal, such as silver, in a binder composition. The disclosure also contemplates novel structure for connection of the electrode to a lead wire, as well as several novel, overall designs for the construction of the electrode support means.

Abstract: There is disclosed an electrode construction of the type including a terminal arrangement and support structure for said terminal arrangement, said support structure adapted for the transcutaneous application of the electrode to a patient. The support structure may be fabricated from a layer of foam or microporous material, or plural layer employing a combination of both, or from a layer of conductive adhesive. The terminal arrangement may be of single terminal or multi-terminal design, and is provided by a conductive pattern printed on a semi-flexible plastic-like sheet, wherein said pattern is printed with a conductive ink of the type employing a conductive metal, such as silver, in a binder composition. The disclosure also contemplates novel structure for connection of the electrode to a lead wire, as well as several novel, overall designs for the construction of the electrode support means.

Abstract: An electrode pad, an electrical lead wire connector, and an electrode system composed of the pad and connector which exhibits a DC offset of about 1mV, an AC impedance of less than 100.OMEGA., and a stable rectification of less than 0.2mV.The electrode pad of the system, for attachment to the skin for detecting biological or physiological electrical potentials, includes an electrically non-conductive disc, an electrolyte saturated porous matrix in the disc and integral provision for attaching an electrical connector, the pad having no metal components.The electrical connector has an electrically conductive probe at one end composed of a non-conductive plastic with a conductive silver and silver chloride coating thereover.