Abstract: A paddle boat having a steerable rudder, a seat, a chain driven pedal actuated paddle assembly and storage areas above deck associated with the seat and wheel housings. The paddles can be either synchronized or unsynchronized so that both paddles are either in the water at the same time or one paddle trails out of the water while the other paddle is in the water.

Abstract: A tilt-lock mechanism for a vertically tiltable outboard stern drive on a marine vessel preferably includes a hydraulic cylinder device dampingly connecting the drive unit and the vessel. The mechanism preferably includes apparatus allowing the operator to selectively prevent or allow the drive unit to freely tilt under various operating conditions.

Abstract: A marine vessel propulsion assembly includes at least one propeller nozzle unit having a rudder associated with it. The propeller nozzle unit has a shroud laterally surrounding the propeller and the shroud is supported so that it can be pivoted about two different axes each extending transversely of the flow direction. In the desired angular position, the shroud can be locked in position. The two pivot axes of the shroud extend perpendicular to one another. The shroud is connected to a shaft extending in the direction of one of the pivot axes and the shaft can be interlocked with shaft guide means. The shroud and the rudder each include the same angle of pitch of at least two degrees relative to the propeller shaft.

Abstract: An improved lubricating system for a two-cycle outboard motor having a vertically extending crankshaft. The lubricating system employs a crankshaft driven pump and circulating system that permits pressure lubricating without necessitating elongation of the crankshaft or engine. The engine is enclosed within a cowling and an oil sump is conveniently located within the cowling and is accessible through a cover door of the cowling for replenishment of the oil supply without removal of the cowling.

Abstract: A shaft connecting device for the outboard drive of a marine engine consisting of a pair of shafts having a splined connection. A seal is fixed to one of these shafts for providing a seal to this shaft and has a portion sealingly engaged with the second shaft for protecting the splined connection from the ingress of foreign material.

Abstract: A one-handed paddle having a blade portion, a hand-grip portion and an arm brace portion. The arm brace portion has a resilient member which releasably grips the forearm of a user to maintain the arm brace portion in contact with the forearm of the user during use of the paddle.

Abstract: A shape-memory alloy initially configured to have engaging potential for a ance, guillotine or pin connected thereto is wrapped in a heating element powered by current from a water activated battery. When the alloy reaches a specific temperature it silently reverts to a predetermined shape. The reversion force is used to displace a lance to pierce a gas cylinder seal to allow inflation of a float and to cut a retaining loop or withdraw a pin to payout a preset length of hydrophone suspension cable.

Abstract: A fin which can be secured in the channel of a curved fin box in a plurality of locations. The fin has a grooved flange which mates with the open channel of the fin box. One wall of the channel has a groove which aligns with the flange groove and a fastening rod is inserted therein. The fin is prevented from longitudinal movement within the channel by a tab and tab receiving. A pair of the curved fin boxes and fin are affixed to a surfboard as thruster fins. The manuverability of the surfboard is enhanced and can be varied by the repositioning of the thruster fins within the curved fin boxes. At one extreme the line of the fins is parallel to the center line of the surfboard, and at the other extreme the thruster fins are toed-in and form equally but oppositely directed angles with respect to the center line.

Abstract: In making electrode construction for multiple cathode type flat cathode ray tube, a plural number of parallel strip electrodes are connected to form one sheet by means of connecting means 21, 21 . . . provided between neighboring strips. The connecting means are ribs extending laterally (i.e., in a direction of right angle to said strips from the strip electrodes 33, 33 . . . or 36, 36 . . . . The composite parallel strips formed by connecting by the connecting means are formed by photolithographic process from an Ni-Cr-Fe sheet. The connecting means are cut out by impingement of high energy beams (of laser or electron) after bonding the composite parallel strips onto another higher rigidity electrode member.

Abstract: A multilamp photoflash array and fabrication process is provided wherein electrically conductive leads of a plurality of flashlamps are embedded in and wrapped about the ends of a plastic reflector unit which is, in turn, affixed to a circuit board to provide contact between the bent leads and a printed circuit on the circuit board.

Abstract: A method for fabricating a CRT (cathode-ray tube) in which a partially-completed faceplate-panel assembly is baked-out and heat-sealed to a funnel during the same baking cycle. Jets of oxygen-containing gas are directed intermittently into the open neck of the funnel at least during the heating-up period of the heating cycle.

Abstract: A motorized toy is described which consists of self-propelled toy vehicles, station sections which can be incorporated along the course of a track for the vehicle and toy objects with movable parts which can be coupled with the station sections. Each toy vehicle can be operated both in a forwards and a backwards travel direction and can be stopped in both travel directions in a defined position in order to drive the toy object at a station section. Alternative hand-operated drive means may be provided at the station sections, and the track of the station section includes a start member having a transverse slot relative to the track section, the start member being able to adopt two positions relative to the track. A stop pin on the vehicle in one position of the start member is capable of latching into the slot thereof, latching being prevented in the other position.

Abstract: A simultaneous following device for driver and follower in a toy car which transmit the kinetic energy generated by a drive via an eccentric wheel and link and double bar-oscillating arm so that the two bars of the double bar-oscillating arm are swinging and thus to drive the spindles of the steering wheel and the follower for rotation in normal/reverse direction at a small degree so that the steering wheel and the follower are swung simultaneously to show the driving operation of the driver and the action of the follower.

Abstract: A toy vehicle having a spring-operated clockworks motor which is charged by a pumping action, the vehicle having a chassis on whose front and rear ends are supported front and rear wheel axles, and a body resting on the chassis. The front of the body is hinged to the front end of the chassis, a stop being provided whereby the back of the body is liftable with respect to the rear end of the chassis within fixed limits. The clockworks motor, which includes a spiral spring, is mounted on the chassis and is operatively coupled to the rear wheel axle, the motor having a spring-biased crank arm which engages the underside of the body and acts to normally raise the back thereof to its upper limit. The crank arm is operatively coupled to the spiral spring whereby by repeatedly depressing the back of the pivoted body while holding the vehicle to prevent rotation of the rear wheels, the crank is reciprocated to produce a rotary motion to wind the spring and thereby charge the motor.

Abstract: A toy vehicle assembly that can be self-propelled by a spring motor and is designed to permit the front wheels to be lifted off of the traveling surface by the addition of a weighted member. The weighted member is positioned on a pivotable bracket which is adjustable relative to the main frame of the vehicle to thereby permit a modification in the mode of travel of the vehicle.

Abstract: A clutch disc as used e.g. in motor vehicle clutches comprises a hub member and a friction lining carrier. The friction lining carrier surrounds the hub member and is mounted thereon for angular movement with respect to the hub member about the axis of rotation of the hub member. A torque is transmitted from the friction lining carrier to the hub member by two groups of torque transmitting springs which are arranged in series. A first group of torque transmitting springs is provided between the hub member on the one hand and an intermediate torque transmission unit on the other hand. A second group of torque transmitting springs is provided between the intermediate torque transmission unit on the one hand and the friction lining carrier on the other hand. Each torque transmitting spring is received by radially aligned openings of three respective torque transmitting sleeves.

Abstract: A vibration damper assembly which includes an output hub with circumferentially spaced plural radial arms and arcuate openings between the arms; input covers disposed at both sides of the hub and having openings axially faced to the openings in the hub; plural torsion springs arranged circumferentially tandem in each set of the openings in the hub and the covers; and floating spacers arranged between the torsion springs and circumferentially slidably supported by rail portions forming outer and inner edges of the opening in the hub. The floating spacers are made of a middle slider having a pair of end plates riveted thereto over lapping the rail portions.

Abstract: A universal joint includes a first member and a second member joined via a coupling assembly. The coupling assembly includes a pair of washer-like seats engageable with ball studs carried by the pair of members and a nut and bolt assembly. The nut and bolt assembly cooperates with one of the washer-like elements to define a stop and the one washer-like elements defines a stop with at least one of the ball studs and/or one of the members to permit easy assembly of the universal joint and smaller members.

Abstract: A universal joint having an inner joint member and an outer joint member and torque transmitting balls interposed therebetween is formed with recesses which receive the balls in one of the joint members, this one joint member being provided with at least one elastic ring on which the balls are supported.

Abstract: A cooling fan is provided on at least one of the drive pulley and the driven pulley on which the drive belt is wound. A substantially closed casing in which the pulleys and the belt are accommodated has its interior partitioned in two chambers. With rotation of the fan, the air inside the casing is circulated within the casing where one of the chambers acts as a going passage and the other as a return passage, respectively, to thereby cool the pulleys and the belt. The two chambers are communicated with each other by communication means which are arranged at the pulleys and adapted to allow smooth movement of the air through the pulleys. Further provided are means for enhancing the efficiency of cooling the driven pulley by the circulating air and means for radiating heat generated within the casing through the casing walls.

Abstract: A variable sprocket, particularly suitable for a bicycle transmission, comprising a drive flange and an indexing flange mounted on an axle with a pair of sprocket-segment-planets and at least two idler-planets sandwiched between said flanges forming a relatively rigid variable-sprocket, the planets adapted to expand and contract in response to a relative rotation of the flanges and thereby change the effective diameter of the variable-sprocket.

Abstract: An endless power transmission belt construction and a method of making the same are provided, the belt construction comprising an endless flexible carrier and a plurality of transverse belt elements assembled on the carrier, each belt element having a peripheral face and a medial slot passing therethrough and receiving part of the carrier therein. Each belt element has a slit in the peripheral face thereof that leads to the slot thereof and a hinge spaced from the slit thereof that permits the belt element to have the slit thereof opened sufficiently to permit at least part of the carrier to be received therethrough for subsequent positioning in the slot thereof and thereafter be moved to a closed position to prevent at least that part of the carrier from escaping through the slit. Each belt element has two adjacent surfaces defining the slit thereof therebetween.

Abstract: A link pin for connecting a pair of side links to a center link disposed therebetween including rectangular head portions at each end thereof for retaining the pin within the side and center links and a shaft portion disposed between the head portions. The shaft portion includes a pair of end portions and a central portion therebetween and a central axis extending therethrough and first and second offset axes which are parallel to the central axis and disposed on each side thereof. The shaft portion further includes a central protrusion extending from the central portion and radially outwardly from the first offset axis and having an outer arcuate surface defining an arc circumscribed about the first offset axis and a lateral protrusion extending from each of the end portions and radially outwardly from the second offset axis in a direction opposite to the central protrusion, each of the lateral protrusions having an outer surface defining an arc circumscribed about the second offset axis.

Abstract: A V-section cog belt having a rubber body provided with longitudinally spaced inner cogs defining an inner surface. The belt is provided with conventional tensile cords extending longitudinally thereof. Rigid metal reinforcement members are provided in the cogs extending transversely across the belt in outwardly spaced relationship to the inner surface thereof. The reinforcement members may have any one of a plurality of different configurations, including tubular configurations and solid cross section configurations. The outer and inner surfaces of the tubular configurations may be similar or different as desired. In one form, the reinforcement members are spring plates. The reinforcement members may be provided as single members in each of the cogs or a plurality of members in the cogs as desired.

Abstract: An apparatus and method for forming flat cut carton blanks into erected cartons with debowed carton side panels is disclosed. The apparatus includes a forming head receiving and directing a carton blank through forming guides. Pinching wheels rotatably secured adjacent the forming guides include a pinching notch with a leading edge projecting inwardly into the forming head path. The pinching notch engages the descending carton bottom and side panels to capture and pinch the fold lines and overbreak the side panels at the fold lines between the carton side and bottom panels. An inclined surface with a sharp creasing edge abutting the inside of the fold line assists the pinching notch in creasing the fold lines. An extension edge formed adjacent a trailing edge of the pinching notch completes the overbreaking action. A release edge formed adjacent the leading edge gently releases the carton side panels from the overbreaking position upon counter rotation of the wheel.

Abstract: The present invention relates to a method of manufacturing bag-like packages of flexible material, in which each package is so arranged as to have a number of closure ribbons (38, 48). A blank belt (1) which is essentially double-folded in its longitudinal direction is divided into a number of consecutive, bag-like packaging blanks (7). A number of closure ribbons (38a, b and 48a, b) extend through similarly located channels in all the packaging blanks. The ribbons are shortened in their longitudinal direction, for instance by folding. The blank belt is moved over guide devices (6a, b) which open the packaging blanks at the same time as the distance between their openings (32", 32"') increases. This causes drawing out of sections of the closure ribbons (38, 48) from the channels in the adjacent packaging blanks. The drawn-out closure ribbons are attached to each other in pairs and are cut off at the areas of attachment so as to form endless closure ribbons for each and every one of the packaging blanks.

Abstract: There is provided a method for making a supply of partially separated multibag units, comprising first passing a perforated chain of side-sealed bags through a first set of driven nip rollers, then passing said chain directly to a second set of nip rollers having a partial nip of selected width less than the width of said chain, while driving said second nip rollers at a speed greater than said first nip rollers sufficient to partially separate the bags at their respective lines of perforation, and while cyclically completing the nip of said second nip rollers at predetermined intervals corresponding to the number of bags desired in each multibag unit. Associated apparatus for making said partially separated multibag units is also provided.

Abstract: In making a tubular bag, a first band of thermosetting glue is printed across the length of a web, and a second and third band of such glue is printed on the opposite side of the web in registry with the ends of the first band. The printed glue is then dried with a heat below that of the softening temperature of the thermosetting glue. Glue is applied to a marginal edge of the web and the marginal edges are overlapped and thus glued together as a back seam. An increment of the tube is severed at said bands without heating such bands, and the web is folded along a line extending centrally through the glue bands. The bands are simultaneously clamped together and heated to fuse the bag layers together at the bands.

Abstract: In apparatus for pulling tube ends open to form base squares in the production of large cross-bottom sacks, table plates are disposed parallel to the plane of the pulled open bases and separated from another by a gap through which a tubular web is feedable in a plane substantially perpendicular to the table plates. Suckers at both sides of the web pull the edges of the web end apart. The suckers are secured to carriages which are movable in parallel guides from a position in which they are pushed together to the pulled open position of the base.

Abstract: An arrangement for the raising and transporting of packing container blanks is used in a packaging machine of the type which converts tubular packing container blanks to filled and sealed packing containers. The arrangement has a carrier plate which by a plurality of suction heads grips a flattened packing container blank situated in a magazine and transports the same to a conveyor (4). During the transport the packing container blank is converted with the help of stationary supports, situated in the path of movement of the blank, so that it obtains a substantially square cross-section.

Abstract: Improved apparatus for producing continuous form stationery by creasing a strip of paper along lines of weakening formed therein. The apparatus includes a frame, a distributing mechanism mounted on the frame for alternately distributing successive lines of weakening in the paper in substantially opposite directions, dispensing rollers mounted on the frame for drawing the paper from a supply thereof and dispensing the paper into the distributing mechanism, mechanisms carried by the frame for urging the distributed paper into a creased condition, and a conveyor for receiving and transporting the creased paper. The improvement consists of a system for removably securing the paper supply in position to dispense paper during the operation of the paper processing apparatus. The improved paper securing system includes a carriage movably carried by the frame and moved between two operative positions by a linkage assembly.

Abstract: Process for making zigzag folds in loops of a continuous feed of flexible sheeting, especially textile sheeting, so that the sheeting (9) is drawn in with a layering device (13) which moves back and forth at a right angle to the feed direction and the sheeting is folded at the outlet. The sheeting (9) is drawn in between the two corotating rolls (4) which constitute the layering apparatus (13) so that the sheeting lies against one of the rolls (4), and the rolls (4) change their direction of rotation at the two opposite points in their back and forth movement in such a way that the rolls (4) rotate toward the left when they move laterally to the right, but the rolls rotate toward the right when they move laterally toward the left, and the sheeting (9) is delivered for folding by the roll (4) which is in the rear in the direction of lateral movement.

Abstract: This invention provides an apparatus for quarter folding sheet products such as newspapers and the like, which includes a pair of cooperating fold rolls, a sheet supporting surface above the fold rolls, a rotatable cage assembly carrying a tucker blade that tucks a sheet into the nip of the fold rolls during each revolution of the fold rolls, a pressing device for exerting a force against one group of the ends of the product being folded and cam device operating the pressing device in timed relationship with the tucking of a sheet product into the fold rolls.

Abstract: The device comprises a rotor formed with a circumferential groove including a widening with an apertured bottom whereat two monitoring stroboscopes are arranged, the groove being provided for engaging with the red cell and plasma exit end of a disposable bag, the other end whereof is so designed and arranged as to receive whole blood.

Abstract: Novel methods and apparatus are provided for regulating the concentrations of oxygen and carbon dioxide in blood during extracorporeal cardiopulmonary bypass. According to the invention, probes capable of measuring the partial pressures of oxygen and carbon dioxide in blood are provided in the venous and arterial lines, both probes measuring the blood gas levels at the ambient temperature of the blood in the extracorporeal blood circuit. These concentrations are monitored on a real-time basis by a processor unit which compares the values reported by the arterial probe with selected values chosen by the perfusionist. The processor unit then preferably controls the gas flow to the oxygenator portion of the perfusion system so that the treated blood maintains the chosen concentrations of oxygen and carbon dioxide. In other embodiments, the probes are adapted to measure other perfusion variables, including temperature, hematocrit, blood flow rate, and pH, thus allowing further automation by the processor unit.

Abstract: A monitoring system for monitoring trans-membrane pressure in plasmapheresis apparatus utilizing a microporous membrane type filter includes first and second pressure-to-frequency transducer circuits for developing signals frequency-indicative of the inlet and outlet pressures of the filter. The signals are digitally compared in a pulse subtraction circuit to produce an output signal frequency-indicative of trans-membrane pressure. The output signal is applied to a periodically reset display counter to develop a digital readout of trans-membrane pressure. Porous filter elements in the flow system and in the inlet port of each transducer isolate bacteria within the flow system, prevent contamination of the transducers, and provide a time constant for each transducer which prevents transient flow variations in the system from causing erroneous trans-membrane pressure readings.

Abstract: In a apparatus for aspirating material into an opening into a passage and along the passage, the apparatus has at least one additional opening or orifice for admitting (pre-aspirating) a fluid into the passage. The fluid facilitates aspirating the material along the passage and thus is preferably adjacent the opening through which the material enters the passage to facilitate the aspiration all along the passage. The apparatus is particularly for surgical use. In surgical uses the material to be aspirated contains blood which tends to coagulate in the passage and block it. The fluid which enters the passage through the orifice then dilutes the blood to reduce coagulation, lubricates the passage for better material flow therealong, and flushes the material along the passage.

Abstract: A microsurgery system comprising an instrument including a source of vacuum and control means, a remotely connected handpiece adapted to be disposed in the vicinity of the situs of the surgery and including an inlet and suction conduit means coupled to the inlet and to the vacuum source for carrying material away from the surgery situs. The system also includes a cassette assembly arranged for releasable securement to the instrument. The control means of the instrument includes an interrupter bar which cooperates with the cassette assembly for selectively isolating the vacuum source from the suction conduit means. The cassette assembly comprises a body portion, a collection vessel, a first port communicating with the suction conduit and a second port communicating with the vacuum source. Occludable conduit means are coupled between the first and second ports and are arranged to be engaged by the interrupter bar in response to a first signal to isolate the vacuum source from the suction means.

Abstract: A double lumen cannula for hemodialysis and similar applications such as haemoperfusion comprises elongated flexible tubular members, disposed one within the other, for semi-permanent insertion into the sub-clavian vein of a patient, leaving semi-permanent access thereto for repeated hemodialysis treatments. The cannula is formed of an elongated flexible outer member, having a smooth exterior surface, and made up of an elongated main portion, a convergent, constricting portion and a narrower distal end portion which is tapered at the tip to fit over a Seldinger guide wire. There is also an inner member having a diameter substantially the same as that of the distal end portion. The inner member is insertable into the outer member to come into sealable engagement with the interior walls of the constricting portion, so as to form a continuous inner lumen with the distal end portion of the outer member, and is removable therefrom for removal of clot or replacement purposes.

Abstract: A dynamically augmenting pump system incorporates a sealed liquid-filled catheter which is inserted into a vessel such as an artery, and the pump system is operated in timed relation with the heart to aid the heart during episodes of impairment or failure of cardiac function by producing higher frequency pulsation or pressure waves within the blood during diastole and during the isometric contraction period of the heart. This frequency of pulsation is adjusted to the dynamic transmission characteristics of a selected circulatory subsystem, such as the coronary vascular system, to assure the transmission of a maximum of pulsatile energy into the subsystem. The catheter provides energy to maintain adequate blood flow through the healthy part of the myocardium and has a passage for injecting successive quantities of medication into the coronary arteries. The pump system also functions to penetrate the ischemic myocardial tissue with arterial blood and medication.

Abstract: A method is disclosed in which the suctioning of materials from a surgical zone, such as the human eye, is automatically controlled linearly by means of a pressure transducer continuously sensing the vacuum level of a debris receptacle (for collecting suctioned materials from the surgical zone) when material is being suctioned from the zone. The vacuum level in the debris receptacle is linearly varied when the vacuum level in the receptacle is either raised or lowered depending on the suctioning requirements from the surgical zone and whether or not the vacuum level in the receptacle is greater or lower than a previously determined and desirable vacuum level. The vacuum level of the receptacle may, in part, be controlled and varied, by means of a foot pedal operated by the surgeon.

Abstract: Long chain alkyl and alkenyl sulfonates, sulfates and sulfoalkyl alkanoate salts, administered intravaginally for contraception.

Abstract: The sheath is of the type having a thickness which is substantially constant throughout its length and having at a first end, or insemination end, a narrowed shape (4b).The problem is to provide a sheath which may be employed on an insemination gun which fixes the sheath by means of projections without presenting difficulties when manufacturing or when inserting the sheath.According to the invention, this sheath is characterized in that its opposite end portion (4a), or fixing end portion, of very short length relative to the total length of the sheath, has an inside diameter substantially larger than the constant inside diameter it has throughout the remainder of its length. The invention has an advantageous application in respect of sheaths for insemination guns for bovines.

Abstract: A wound drainage reservoir which is a container having a resilient sidewall that defines a chamber within the container and wherein an opening extends through the sidewall. A helmet extends through the opening, which helmet has an extending lip that engages a portion of the sidewall of the container which surrounds the opening. A collar encircles and is bonded to the helmet for sealing such a portion of the sidewall between the lip of the helmet and the collar. A first inlet is on the helmet to provide a first fluid-flow conduit to the chamber. A second inlet is on the helmet to provide a second fluid-flow conduit to the chamber. A drainage outlet is on the helmet to provide a fluid-flow conduit from the chamber. A plurality of ribs extend laterally along the sidewall.

Abstract: A parenteral delivery set is disclosed for administering a beneficial agent to a recipient. The set comprises (a) a primary container of a medical fluid; (b) a primary tubing in fluid communication with the primary container; (c) a secondary container of a medical fluid; (d) a secondary tubing in fluid communication with the secondary container; (e) a formulation chamber connected to the secondary tubing and housing an agent dispensing device or the beneficial agent; and (f) a common tubing in communication with the primary tubing and the secondary tubing for communicating the set to the recipient.

Abstract: The drive piston of a hypodermic syringe is rendered non-retractable by including on it a resilient disc-like element whose free diameter is slightly larger than the diameter of the glass tubular body of the syringe. The drive piston is inserted into the glass tubular body from the rear end, thereby causing the resilient disc-like element to become dished with its concave side facing rearward. The dished resilient element acts as a continuous pawl since any attempt to retract the drive piston jams the edge of the resilient element against the inside wall of the tubular body.

Abstract: A portable infusion device includes a disposable syringe which is located in a removable section of a compact package that comprises the device. In order to conserve space, a flexible piston rod assembly is provided wherein the syringe plunger head is connected to a thin flexible plunger stem which is reversely bent about the upstream end of the syringe body so that the outer end of the stem lies directly adjacent and parallel to the syringe body. A small motor located in the non-removable portion of the package drives the plunger through a screw which sequentially engages closely spaced teeth on the face of the plunger stem as it moves along the outer surface of the syringe. When the syringe contents have been discharged, the removable section, including the syringe and plunger stem assembly, can be readily removed and replaced.

Abstract: A yoke shaped collapsible blood reservoir having first and second yoke legs joined by a yoke midsection. A filter element is positioned in the yoke midsection and across the blood flow path between an inlet at the base of the first yoke leg and a blood outlet at the base of the second yoke leg. An angular blood inlet and a gradual increase in cross-sectional area from the blood inlet to the yoke midsection decreases turbulence and assists in bubble separation.

Abstract: A linear peristaltic pump, and a disposable casette therefor, particularly suitable for the infusion of parenteral fluids. The pump includes a housing having a power-driven shaft and a series of small bearing assemblies having their inner members eccentrically mounted upon that shaft. A thin elastomeric membrane extends along the series of bearing assemblies for engagement with the outer members thereof along a first band or linear zone of contact lying in the same plane as the axis of the shaft. The disposable casette is removably supported by the housing and takes the form of a rigid, planar, perimetric frame having an opening across which is stretched a section of elastomeric tubing.

Abstract: A tubage for use in an intubation is provided. The tubage comprises a tubular body having a first conduit and a second conduit which are formed therein to extend in a longitudinal direction, a flange portion formed to extend substantially perpendicular to the longitudinal direction and a side hole which is formed in the first conduit at a predetermined distance from the flange portion.