Abstract: An elastomeric bag having opposite ends, a first opening at one of the bag ends and adapted to be connected to a resuscitator assembly, a second opening at the other of the bag ends, and a one-way flap valve at the second opening. The bag when compressed manually causes air to flow out through the first opening to the resuscitator assembly; and the bag, when allowed to expand, causes air to flow into the bag via the second opening past the one-way flap valve. A hollow plunger is slidably mounted within a cylinder bore, and a compressor spring biases the plunger. A post is located in the cylinder to seat one end of the spring, so that the spring urges the plunger toward the bag. An air vent is located in the cylinder and toward which the plunger is movable when the bag is compressed; and an air pressure release hole in the cylinder releases excess air pressure in the cylinder to the exterior, only after the plunger has been moved by air pressure to compress the spring to predetermined extent.

Abstract: An improvement of a fluid submersible laryngoscope including a hollow handle to contain power supply means and a blade to be inserted into a patient's mouth includes a terminal pin carried on an end portion of the handle by a tubular elastomeric body and an insulation disc located between the power supply means and the end of the elastomeric body. The elastomeric body acts as a fluid sealing means to block access of external fluid into the hollow handle whether or not the blade is attached to the handle. The insulation disc defines a bore through which the terminal pin at least partially extends such that attachment of the blade to the handle will cause the terminal pin to move through the bore and contact the power supply means.

Abstract: A resuscitator that includes a ventilation mask structure for sealingly surrounding a patient's mouth and nose, a gas flow manifold having passage structure for delivering ventilating gas from a source of the gas to the mask structure, and a manually collapsible gas receptable operatively coupled to the gas flow manifold comprising a modular structure for detecting gas pressure in the manifold; the modular structure including wall structure defining a bore, the modular structure defining a port structure communicating with the gas flow manifold to communicate gas pressure in the manifold to the bore; a plunger slidably mounted to the bore, the plunger having a flange defined thereon; spring structure mounted intermediate the flange of the plunger and wall structure of the modular structure so as to limit movement of the plunger relative to such wall structure of the modular structure; at least a portion of a wall of the wall structure of the modular structure being transparent, wherein such movement of the pl

Abstract: A resuscitator for ventilating a patient is provided which includes a ventilator mask, a manually collapsible gas receptacle, a gas flow manifold having three gas flow passages for delivering ventilating gas from a source of ventilating gas to the mask. The third gas flow passage is coupled to the mask, the first gas flow passage is coupled to the gas receptacle, and the second gas flow passage is in flow communication with a source of ventilating gas. A one-way flow valve is mounted intermediate the second and first gas flow passages and a one-way flow valve is mounted intermediate the first and third gas flow passages. The one-way flow valves are mounted so that when the gas receptacle is collapsed, the one flow valve prevents flow from the first gas flow passage to the second gas flow passage and the other flow valve allows flow from the first gas flow passage to the third gas flow passage.

Abstract: A resuscitator comprises(a) a manually collapsible air receptacle having an air inlet and discharge outlet,(b) tubing sections extending in series and having an air inlet connectible in air passing relation with the receptacle inlet and discharge outlet, and an air outlet connectible in air passing relation with a mask to be placed against a patient's face,(c) first and second valves positioned in at least one tubing section so that the first valve opens and passes air to the receptacle when the second valve is closed, and so that the second valve opens and passes air from the receptacle to the mask when the receptacle is squeezed and the first valve is closed, and(d) an adjustable air bleed also being provided.

Abstract: A fluid submersible laryngoscope includes a hollow handle to contain a power supply such as dry cell means. A terminal pin is carried by the handle, and structure is provided to place that pin in electrical energy transmitting relation with a light bulb, the blade insertible into a patient's mouth to illuminate the throat area. Sealing structure is provided between the terminal pin and handle to block access of external fluid into the hollow handle, whether or not the blade is attached to the handle, and when the handle is submerged in fluid.

Abstract: A fluid submersible laryngoscope includes a hollow handle to contain a power supply such as dry cell means. A light source is carried by the handle, and structure is provided to place that power supply in electrical energy transmitting relation with that light source to direct light into transmitting means carried by the blade. The blade is insertible into a patient's mouth to illuminate the throat area. Sealing structure is provided between the terminal light source and handle to block access of external fluid into the hollow handle proximate the light source whether or not the blade is attached to the handle, and when the handle is submerged in fluid.

Abstract: A laryngoscope, has a blade and a hollow body including a handle and a cap, and also includes:(a) the handle adapted to receive a dry cell or cells, the handle having an open end,(b) the cap telescopically and removably interfitting the handle to close its open end, and a seal sealing off between the cap and handle,(c) a sealed window carried by the cap to pass light from a light source within the body to a predetermined zone at the cap exterior, whereby such light may be transmitted along the blade removably attached to the cap,(d) a flexible barrier carried by the cap to be deflected by the blade upon its attachment to the cap, the barrier sealing off between the cap interior and exterior,(e) and circuitry including a motion transmitting element to be deflected within the hollow body in response to barrier deflection to establish an ON condition of the circuitry for transmitting current from the dry cell to the light source.

Abstract: A fluid submersible laryngoscope includes a hollow handle to contain a power supply such as dry cell means. A terminal pin is carried by the handle, and structure is provided to place that pin in electrical energy transmitting relation with a light bulb carried by a blade removably attachable to the handle, the blade insertible into a patient's mouth to illuminate the throat area. Sealing structure is provided between the terminal pin and handle to block access of external fluid into the hollow handle, whether or not the blade is attached to the handle, and when the handle is submerged in fluid.

Abstract: A fluid submersible laryngoscope includes a hollow handle to contain a power supply such as dry cell means. A light source is carried by the handle, and structure is provided to place that power supply in electrical energy transmitting relation with that light source to direct light into transmitting means carried by the blade. The blade is insertible into a patient's mouth to illuminate the throat area. Sealing structure is provided between the terminal light source and handle to block access of external fluid into the hollow handle proximate the light source whether or not the blade is attached to the handle, and when the handle is submerged in fluid.

Abstract: This invention relates to a method and apparatus for removing a plurality of strips from the top or outermost layer of a multilayered product having a complex shape to expose a substrate having one or more properties substantially different from those of the top or outermost layer. The invention is particulary intended for use with a metal coated plastic support frame which may be used in the handle of an illuminating or examining device such as laryngoscopes. The support frame comprises a means to hold batteries, a light source and a switch, all integrally formed into a single structure. The apparatus and method of the invention are employed to electrically segregate areas of the metal coated support frame by removing strips of the metal coating.

Abstract: The invention is directed to an improved support frame for use in the handle of an examining device, such as a laryngoscope, which supports and provides electrical conduction for the batteries and the light source and, in a preferred embodiment, also includes a light switch and a reflector.

Abstract: This invention is directed to an improved light source for illuminating examining devices, particularly medical devices such as laryngoscopes. The light source comprises an electrically conducting light bulb holder with a longitudinal passageway therethrough, a light bulb with two depending electrodes snugly positioned in one end of the passageway with a portion of the light generation means extending out of the passageway, a non-conducting insert also having a longitudinal passageway telescopicly interfitting into the other end of the passageway and urging one of the electrodes disposed between the insert and the bulb holder into electrical contact with the latter and an electrically conducting rivet or plug snugly interfitting the exposed longitudinal end of the passage was in the insert and electrically contacting the second electrode disposed within said insert passageway and forming a terminal for the light source.

Abstract: An examining or viewing device such as a laryngoscope having improved optical coupling between a light source and a light receiving face of a light conductor. The light source is provided with a reflector preferably ellipsoidal in shape which concentrates the light reflected into a converging conically shaped light beam which fall essentially in its entirety onto the light receiving surface of the light conductor.

Abstract: An improved laryngoscope blade is shaped similarly to a conventional blade except that a downwardly extending fin and lateral portion is not used. Rather an integral sleeve of plastic material is provided and receivable over the front portion of the blade in the manner of a stocking. This plastic sleeve has a solid downwardly extending fin portion and a lateral extending portion. The plastic cover or sleeve serves two functions: first, it removes the necessity of sterilizing the laryngoscope blade itself since the sleeve can be removed and disposed of after each use; second, the extended fin and lateral portion of the sleeve serves as a second surface to cushion contact of the blade with a patient's upper front teeth should these teeth be used unconsciously as a fulcrum when manipulating the blade to expose the larynx in order to facilitate insertion of an endotracheal tube.

Abstract: The invention is directed to a laryngoscope blade which has a tip at the distal end thereof which is capable of being bent or flexed in the direction of the handle of the laryngoscope. Operable means are provided, preferably at the proximal end of the blade, to bend or flex the tip. When the blade is inserted into a patient's throat so that the bendable tip is located at the base of the patient's epiglottis, the operable means of the bendable tip can be actuated so the tip will bend and thereby further lift the patient's epiglottis in order to expose the patient's larynx. The laryngoscope blade is particularly suitable to the few patients in which the usual laryngoscopic procedures do not adequately expose the patient's larynx.

Abstract: The blade of a laryngoscope is made of non-metallic material such as plastic so that it can be economically disposed of after each use. Further, it includes a flexible portion which will protect a patient's teeth as a consequence of the unconscious tendency to encroach upon the patient's upper teeth by using them as a fulcrum for the blade in exposing the larynx in order to insert an endotracheal tube. A light source is located in the handle of the laryngoscope rather than the blade and a light conductor is held by the blade for optically conducting light from the source in the handle to an exit point along the blade for viewing the larynx.

Abstract: This invention relates to an improved means to detachably secure a blade to a handle of medical examining devices such as laryngoscopes, which will secure the blade to the handle in at least two positions in an L-shaped configuration, one position being an operating position and one position being a ready position.

Abstract: Removably located within an elongated epithelium-lined tract, or tunnel, surgically formed in the subcutaneous layer of the wearer's scalp is the elongated subdermal portion of a scalp anchor. The anchor includes an external portion attachable to a hairpiece. A plurality of such anchors securely yet removably retains the hairpiece in the desired position on the scalp.A web at the junction of the subdermal and external portions enhances the wearer's comfort by reducing the unit pressure on the adjacent end of the tract in the event that force is exerted against the anchor by the hairpiece; and for hygienic reasons the web is constructed so as to provide channels for the circulation of air in the subdermal tract.