Abstract: A transition circuit board for transitioning a cable to a connector is provided. A circuit board has an outer surface with a circuit trace, ground plane and ground link provided thereon. A cable pad and a contact pad are provided at opposite ends of the circuit trace. The ground link is electrically common with the ground plane and is located adjacent to, and separated by a space from, the circuit trace. An insulating coating is provided over at least part of the circuit trace, the ground plane and the outer surface of the circuit board. The insulating coating has a mask aperture there-through exposing an uncoated portion of the circuit trace and the ground link. A conductive jumper material is provided on the uncoated portion of the circuit trace and the ground link to electrically join the circuit trace with the ground plane.

Abstract: A transition circuit board for transitioning a cable to a connector is provided. A circuit board has an outer surface with a circuit trace, ground plane and ground link provided thereon. A cable pad and a contact pad are provided at opposite ends of the circuit trace. The ground link is electrically common with the ground plane and is located adjacent to, and separated by a space from, the circuit trace. An insulating coating is provided over at least part of the circuit trace, the ground plane and the outer surface of the circuit board. The insulating coating has a mask aperture there-through exposing an uncoated portion of the circuit trace and the ground link. A conductive jumper material is provided on the uncoated portion of the circuit trace and the ground link to electrically join the circuit trace with the ground plane.

Abstract: A transition circuit board for transitioning a cable to a connector is provided. A circuit board has an outer surface with a circuit trace, ground plane and ground link provided thereon. A cable pad and a contact pad are provided at opposite ends of the circuit trace. The ground link is electrically common with the ground plane and is located adjacent to, and separated by a space from, the circuit trace. An insulating coating is provided over at least part of the circuit trace, the ground plane and the outer surface of the circuit board. The insulating coating has a mask aperture there-through exposing an uncoated portion of the circuit trace and the ground link. A conductive jumper material is provided on the uncoated portion of the circuit trace and the ground link to electrically join the circuit trace with the ground plane.

Abstract: A transition circuit board for transitioning a cable to a connector is provided. A circuit board has an outer surface with a circuit trace, ground plane and ground link provided thereon. A cable pad and a contact pad are provided at opposite ends of the circuit trace. The ground link is electrically common with the ground plane and is located adjacent to, and separated by a space from, the circuit trace. An insulating coating is provided over at least part of the circuit trace, the ground plane and the outer surface of the circuit board. The insulating coating has a mask aperture there-through exposing an uncoated portion of the circuit trace and the ground link. A conductive jumper material is provided on the uncoated portion of the circuit trace and the ground link to electrically join the circuit trace with the ground plane.

Abstract: An overhead door position sensor assembly includes a sensor actuating device, and a position sensor including a roller track clamping device for mounting the position sensor onto a roller track of an overhead door assembly. The sensor actuating device is mountable to an overhead door of the overhead door assembly for actuating the position sensor when the sensor actuating device is located within a minimum actuation distance from the position sensor. The roller track clamping device includes a body having a main member for placement adjacent to a sidewall of the roller track and a curved resilient member extending from the main member for placement along the contour of a curved roller race that extends from the sidewall of the roller track. A bracket of the roller track clamping device is coupled to the body.

Abstract: A resilient and compressible door channel magnet module facilitates the installation of a door channel magnet. The module comprises a magnet set supported inside a magnet holder that is connected to a flexible and deformable outer ring by a set of elongate web members. To install, the module is compressed, positioned in the door channel, and released. The pressure of the module against the walls of the door channel retains the module in position. A preferred module includes a rare earth magnet backed with a ceramic magnet for producing the requisite magnetic field strength at less cost than a sole rare earth magnet of equal magnetic field strength.

Abstract: A needleless injection device includes an initiator valve controlling flow of compressed gas into a reservoir. A poppet valve connecting to the reservoir has a gas pressure regulation end to regulate flow from the initiator valve into the reservoir. A clamp piston is driven forward by gas pressure from the reservoir and causes jaws to clamp onto a plunger extending into an ampule. The poppet valve opens when reservoir pressure reaches the cracking pressure of the poppet valve. Gas from the reservoir rushes through the poppet valve into a drive chamber and forces a drive piston, containing the clamp piston and jaws, forward causing the plunger to slide into the ampule. A jet of injectant is discharged from the nozzle of the ampule and penetrates through the patient's skin. An improved method of needleless injection uses a specific pressure profile, ampule nozzle diameter, patient, injection site, and injectant parameters.

Abstract: A needleless injection device includes an initiator valve controlling flow of compressed gas into a reservoir. A poppet valve connecting to the reservoir has a gas pressure regulation end to regulate flow from the initiator valve into the reservoir. A clamp piston is driven forward by gas pressure from the reservoir and causes jaws to clamp onto a plunger extending into an ampule. The poppet valve opens when reservoir pressure reaches the cracking pressure of the poppet valve. Gas from the reservoir rushes through the poppet valve into a drive chamber and forces a drive piston, containing the clamp piston and jaws, forward causing the plunger to slide into the ampule. A jet of injectant is discharged from the nozzle of the ampule and penetrates through the patient's skin. An improved method of needleless injection uses a specific pressure profile, ampule nozzle diameter, patient, injection site, and injectant parameters.

Abstract: A needless injection device includes an initiator valve controlling flow of compressed gas into a reservoir. A poppet valve connecting to the reservoir has a gas pressure regulation end to regulate flow from the initiator valve into the reservoir. A clamp piston is driven forward by gas pressure from the reservoir and causes jaws to clamp onto a plunger extending into an ampule. The poppet valve opens when reservoir pressure reaches the cracking pressure of the poppet valve. Gas from the reservoir rushes through the popper valve into a drive chamber and forces a drive piston, containing the clamp piston and jaws, forward causing the plunger to slide into the ampule. A jet of injectant sprays out of the nozzle of the ampule and penetrates through the patient's skin.

Abstract: A method and mold for making an ampule for a needleless or jet injector device. The tip of a core pin is guided into a clearance hole sufficiently large to prevent the tip from hitting the mold cavity. Plastic is injected into the mold and flows into the space between the core pin tip and the clearance hole forming a vestigial nozzle pilot cylinder around and over the ampule nozzle. The ampule is removed from the mold and the vestigial nozzle pilot cylinder is removed to form a finished ampule. A core pin tip is made of drawn wire or is separately replaceable on the core pin. A nozzle of an ampule is cast in place. An ampule is molded with an enlarged nozzle and a separate orifice is installed in the ampule to provide the desired nozzle opening.

Abstract: A dual chamber pumping apparatus and method for infusing fluids to a patient includes a disk having a fluid inlet and a fluid outlet. Resilient membranes are attached to opposite sides of the disk to establish dual pumping chambers, and a network of one-way valves connects the fluid inlet in alternating fluid communidation with the pumping chambers. A one-way outlet valve connects the pumping chambers alternately in fluid communication with the fluid outlet. The one-way valves utilize a hollow, elastomeric tube fixedly disposed in passageways within the disk for covering and uncovering respective ports in response to fluid pressure differentials on the inner and outer surfaces of the walls of the hollow, elastomeric tube.

Abstract: A disposable IV infusion device for ambulatory patients comprises a disk-shaped cover plate and a disk-shaped impeller plate which are interconnected by a stretched membrane that joins the edge of the cover plate with the edge of the impeller plate. The effect of the membrane is to urge the plates into juxtaposition. A fluid port is formed on the cover plate for fluid communication through the port with a collapsible fluid chamber established between the plates. Fluid, when injected into the chamber between the plates, is subsequently expelled through the port for controlled infusion to a patient as the membrane pulls the plates toward each other to collapse the chamber.

Abstract: A cassette for use with an I.V. infusion pump has a housing with a first inlet, a second inlet, an outlet, and a port to the I.V. infusion pump. A valve body is positioned within the housing to selectively establish fluid communication from the first inlet to the port, or from the second inlet to the port, or from the port to the outlet. Movement of the valve body within the housing into yet another position allows for the free flow of fluid directly between the first inlet or the second inlet and the outlet.

Abstract: Disclosed is a piece of equipment, a method, and a product resulting from the attachment of a hub and a catheter. The transition between the catheter and hub are a smooth funnel-like flare of the distal end of the small diameter thin wall catheter into the open inside chamber of the catheter attachment hub. The hub is used to connect an administration set to the catheter. In the method, a probe is used which has a flared transition that is urged into the distal end of the small diameter catheter to flare same outwardly and against the inside proximal end of the catheter hub chamber. The probe is one source of dielectric welding energy and there is a support for completing this circuit. During the imposition of dielectric welding energy, the flared small diameter catheter end is melted, extruded, fused, and tapered in a molding operation into the inner proximal end wall of the catheter hub chamber.

Abstract: A probe with a shoulder is used to support a pre-flanged distal end of a catheter placed inside of an adapter. The probe has a minor diameter to engage coaxially the bore of the catheter and a major diameter to carry coaxially the adapter in axial alignment with the catheter. The pre-flanged distal end of the catheter is compressed by the shoulder into the adapter during a dielectric welding operation as the probe is urged axially against the flange of the catheter. A support associated with the probe resists axial movement of the adapter and receives dielectric energy from the probe.

Abstract: An adapter body for a catheter is described wherein the body is shaped to angle the catheter toward the blood vessel and maintain suturing about the body for holding same to the patient. In particular, a saddle is positioned across the top of the adapter body to locate a suture when same is used to tie down the adapter.

Abstract: A percussor assembly having a gas inlet passageway, a gas outlet passageway, a gas sealing means therebetween, and a percussion member which is moved in response to gas pressure from the gas inlet passageway overcoming the gas sealing means, which gas pressure is then vented through the gas outlet passageway, includes a valve member for closing the gas inlet passageway when the gas pressure is vented through the gas outlet passageway.

Abstract: An oxygen delivery device such as an oxygen mask or tracheotomy mask includes a mask body having an enlarged port, an adapter secured at the port end rotatable 360.degree. therearound, an orifice on the adapter offset relative to the axis of rotation, and a pipe having one end rotatably secured at the orifice and which pipe is along its length.

Abstract: A therapeutic incentive spirometer comprises a spirometer body having an outer wall and an inner wall, separated by a passageway, an interior chamber defined by said inner wall, a gas outlet for directing gas out of the chamber, a gas inlet means for directing gas into the chamber. A component for varying the flow rate of gas through either the gas inlet or outlet, and visual device associated with the interior chamber for indicating the rate of gas flow through the chamber. The preferred device includes a cap having a gas by-pass intake port located therein, which port is registered with a slanted surface on the outer body wall, the cap being movable relative to the body wall which movement changes the by-pass port opening size.

Abstract: In an oxygen mask for being secured over the nose and mouth of a user or patient, an improved means for securing the mask comprises a non-elastic flexible tubing adapted for extending over both ears of the user, ends, and two lengths of elastic flexible tubing, each length having one end secured to the non-elastic tubing, and the other end secured to or adjacent the mask.