摘要:
An air or oxygen flow supply system between a supply source and nasal prongs applicable to a patient, comprising a succession of flow ducts having different flow areas, there being junctions between successive of the ducts, the flow areas defined by A1, A2 - - - An where n>2, the flow areas decreasing at the junctions, in the direction of the flow.
摘要:
A mucous suction device, comprising in combination, a longitudinally elongated, generally tubular, one-piece plastic body, the body having an axially elongated tapered, first portion extending toward an inlet proximate one end of the body, the body having an axially elongated second portion extending toward an outlet proximate an opposite end of the body, radially outwardly extending annular retention rings in said body second portion, said rings having sharp annular peripheries and said rings being axially resiliently flexible and axially spaced apart, and there being body side porting between said body first and second portions, said side porting being manually controllable to control suction exertion.
摘要:
A multi-purpose, one integral piece, medical suctioning device, comprising, in combination first, second and third longitudinally extending tubular body portions of successively different outer diameters, and defining a single, molded plastic unit which is laterally flexible along its longitudinal length, the first body portion forming annular barbs outwardly presented to receive connection to plastic tubing, the second body portion defining a cylinder of relatively greater outer diameter or diameters, there being an annular stop ring integral with the cylinder and presented toward such barbs to define a stop surface against which plastic tubing seats endwise, the third body portion being elongated, and tapering away from the second body portion to terminate at a laterally flexible, forward tubular tip, there being a finger controlled air inlet defined by a sideward protrusion integral with said second body portion.
摘要:
A solar energy conversion system comprises:(a) a solar converter in which liquid absorbs solar radiation, the liquid being solar energy absorptive,(b) first means to circulate said liquid for flow through the converter, and(c) means to effect removal of liquid from the converter in response to an undesirable operation condition in said system.
摘要:
Apparatus for storing a suctioner and the end of a suction line after disconnection from the suctioner, comprising support means, first storage structure on the support means for storing the suctioner; and second storage structure on the support means for storing the end of the suction line and for blocking suction flow of air into the line via the end.
摘要:
A medical liquid bottle having a threaded neck of one thermoplastic material is blow-molded at pressures of 50 to 150 psi (3.52 to 10.1 kg/cm.sup.2) so there is a low amount of internal stress in the neck. A cap of a different thermoplastic material is injection molded at pressures of 5,000 to 20,000 psi (352 to 1,410 kg/cm.sup.2) producing a very high internal stress in this cap. After liquid has been placed in the bottle and the cap assembled to the neck, the bottle with the combined cap and neck are stress relieved by subjecting to steam sterilization at 240.degree. F. to 260.degree. F. (116.degree. C. to 127.degree. C.). This causes the cap to shrink more than the neck and to form a bacteria-tight thermoplastic-to-thermoplastic hermetic seal. Despite this very tight hermetic seal the closure is openable with an unexpectedly low unscrewing torque of 10 to 30 inch-pounds (11.5 to 34.5 centimeter-kilograms) manually applied by a nurse or physician.
摘要:
A connector for connecting an oxygen input flow duct with two narrowed oxygen output flow ducts, is provided thereby to meter oxygen flow to nasal cannula, and includes a hollow body having a relatively large flow input chamber sized for telescopic interfit with the input flow duct, the body having two relatively smaller flow output chambers sized for telescopic interfit with the respective two output flow ducts. The two output chambers have direct and like-sized communication with the input chamber whereby input flow is equally divided into two output flow streams.