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7428840 Apparatus for measuring volumetric or mass fluid flow  
The present invention provides apparatus for measuring volumetric or mass flow of fluid. The apparatus comprises a capsule that is adapted to move upwardly and downwardly within a housing and...
7001365 Infusion of liquids into the human or animal body  
An infusion device includes an upstream pressure control device and a downstream flow control device. The device receives infusion liquid via an inlet and controls the level of liquid in a chamber...
6800072 Contrast dispensing system  
A contrast dispensing system ( 10 ) reduces cost by directly connecting a check valve ( 210 ) to and between the reservoir inlet port ( 220 ) and the mating luer connector ( 204 ) of a disposable...
6695004 Magnetic automatic stop valve  
A magnetic automatic stop valve formed in a container of a medical fluid administration system has one magnetic element located in a float and another magnetic element located proximate a valve...
6673052 Nonreturn warning device for an intravenous drip infusion  
The present invention relates to a nonreturn warning device for an intravenous drip infusion which includes a top member and a bottom member both of which forms an accommodation which has an inlet...
6641559 Buret with foot valve for medical infusion equipment  
A buret with foot valve for medical infusion equipment, including a transparent cylindrical container having a bottom wall with a central outlet hole for outlet of the liquid and a lateral...
6575943 Prewarning device for instillation of medical liquid  
A prewarning device for instillation of medical liquid includes a throttling cylinder having a tubular needle connected to an open top thereof. A pointed head portion of the tubular needle is...
6569116 Intravenous flow controlling device  
An intravenous (IV) flow controlling device comprises a flexible open container having a specific gravity less than one and an outer diameter smaller than that of the drip chamber, the container...
6544236 Device, system and method for improving delivery of hemostatic material  
A device, system and method for improving delivery of hemostatic material, in which the device includes a vent cap body capable of removably engaging a cannula. The vent cap has a passage extending...
6337631 Automatic infusion-monitoring instrument  
An automatic infusion-monitoring instrument includes a clip adapted to clamp a flow-indicating cylinder of an infusion set corresponding to a liquid level in the cylinder that keeps unchanged when...
6261267 Automatic IV shut off valve  
An IV container spike and drip chamber assembly is provided that includes an automatic shut off mechanism which allows nurses to change the fluid container without removing the catheter from the...
6213986 Liquid flow rate control device  
A fluid flow rate control device, especially adapted for controlling the flow of IV fluid to a patient, comprises a first vented fluid chamber having an upper fluid inlet end with a hollow spike...
6195012 Drip annunciator  
A drip annunciator comprises a main body and a needle bottle capable of inserting into a drip bottle for outputting liquid. A buoyancy body is received in the needle bottle, which may move with the...
5868715 Intravenous metering device having automatic stopper  
An intravenous metering device having automatic stopper comprises a connecting tube that can be inserted into a liquid bottle at one end such that a fluid communication therebetween can be...
5722961 Flow control device for use with an intravenous set  
Disclosed is a flow control device for use with an intravenous set to control the flow of medicinal fluid in a barrel into patient's body. The flow control device comprises a floating member...
5527295 Gravitational, magnetic, floating ball valve  
A gravitational, magnetic, floating ball valve for use in the medical field as a protective fluid cut-off valve when medicine and/or fluids are infused intravenously in patients. The ball valve can...
5499974 External pump stroke indicator for use with an implanted medication infusion system  
The invention is directed to an external pump stroke indicator for use with in an implanted medication infusion system of the type having a pump for conveying medication into the patient, an...
5496287 Pulmonary suction catheter  
The disclosure is of a suction catheter having a valve body including a vertical plunger in a vertical bore and two horizontal tubes, one for connection to a source of suction and one for...
5423346 Fluid container shut off valve  
A fluid shut off valve for use in a parenteral fluid administration set includes a disk floating in a fluid chamber that shuts off fluid flow when the fluid in the chamber decreases below a certain...
5415325 Dropper-controller with an automatically sealing means  
A dropper-controller including a reservoir connected with a dropper bottle containing a liquid medicine, and an automatically sealing member formed by a cup-like buoyage and disposed in the...
5279557 Multiple chamber IV delivery device  
A multiple chamber IV manifold delivery device for controlling infusion of blood, medical drugs or other solutions to a medical patient. The manifold includes a transparent housing defining a set...
5234414 Automatically closed dripping apparatus for intravenous administration  
A dripping apparatus for intravenous administration includes: an intravenous container filled with a medical liquid in the container, a reservoir connected to the intravenous container having a...
5228485 Flexible tubing occlusion sensor  
A system for sensing fluid conduit occlusion that reacts to occlusion force applied by changing the state of a switch only if a predetermined minimum force has been applied through the conduit. The...
5031654 Fluid passage valve and medical instrument using same  
A fluid passage valve selectively opens and closes a fluid passage port defined in a bottom of a chamber which contains a fluid to be transfused into a patient's vein. The fluid passage valve has a...
4959053 Automatic stopping device for the intravenous drip  
This invention relates to an intravenous drip, which has a dripping vessel, a cap, a valve, a connecting tube and a pointed bar been inserted in the solution bottle letting the solution in said...
4947154 Alarm device for dripping injection  
An alarm device for dripping injection comprising a floating barrel which vertically moves up or down according to fluid volume in the dripping liquid barrel, a touch switch and sealing means which...
4870987 Relating to a flow regulator for intravenous injection device  
A flow regulator comprises a float valve body provided in an inner container which in turn is fitted in a lower portion of an outer container. The float body has an elongated slender upper portion...
4731060 Hydrostatic float valve and intravenous system supplied therewith  
This invention relates to a hydrostatic float valve for use in a fluid feed system that is capable of automatically shutting off the flow of fluid to a body cavity of a patient whenever additional...
4648384 Retrograde coronary sinus perfusion device and method  
A retrograde coronary sinus perfusion device provides steady state blood flow to the coronary sinus and has a balloon set back from the catheter tip to block the coronary sinus during most of...
4640306 Fluid flow regulator for intravenous feeding device  
A fluid flow regulator includes a resilient hollow sealing body which is fitted in the bottom part of a liquid housing adjacent to a tubular outlet end and which has a central through-hole to...
4449976 Device for preserving continuity of intravenous flow  
A device for reducing the rate of flow from a reservoir as the reservoir empties requires only a single chamber having an input, for receiving fluid from a reservoir, and an output port. There is a...
4340050 Medical fluid flow rate indicating/controlling device  
An indicator/controller for dispensing medical fluids (e.g., intravenously) is disclosed. The device has vented chambers that are movable vertically with respect to one another, thin-plate...
4328820 Constant-flow regulator for gravity-fed liquids  
A constant-flow regulator for use in gravity-assisted liquid-delivery systems, wherein the regulator comprises: upper and lower cylindrical elements secured together for movement to form a chamber,...
4291693 Fluid metering device  
A method and apparatus for metering fluids that are parenterally administered to a patient. The fluid metering device consists of a plastic housing having a primary fluid channel formed therein...
4269222 Constant flow device  
A device for regulating the flow of liquid through a liquid line communicating with a reservoir disposed thereabove comprises a housing defining a float chamber having inlet and outlet openings in...
4256103 Automatic sequential fluid flow apparatus  
Sequential, continuous delivery of separate intravenous fluid mixtures is facilitated by a float operated valve which automatically re-starts flow from a primary solution when the selected volume...
4244364 Combination intra-veinous flow-meter and low level fluid mechanism  
This combination device consists primarily of a stem with a pointed float with plate means at one end, which is freely received in an opaque walled sensing chamber, that removably receives a...
4203463 Flow-regulating device for perfusion-transfusion apparatus  
A so-called "visual" flow-regulation system ensuring a constant flow-rate and presenting an impenetrable barrier to air-bubbles even after completion of the perfusion, the system comprising a...
4175558 Apparatus for administering parenteral liquid in sequential units provided with a ball valve float  
A parenteral liquid administering device includes an enlarged, liquid-holding burette-type chamber for receiving measured aliquots of liquid from a source. The burette has a bottom flow aperture...
4055176 Universal drip chamber and spike assembly  
Universal drip chamber and spike assembly for use with a source of intravenous liquid contained in a bottle having a neck with a permeable stopper disposed in the neck and for use with a tube...
3989043 Automatic flow control and automatic shut off for intravenous feeders  
An apparatus is disclosed for regulating the flow of solution from a fluid reservoir to the vein of a patient. All of the embodiments of the present invention include a first fluid chamber having...
3963024 Fluid flow regulator  
A fluid flow regulator is inexpensively constructed in a unitary system with a rigid and transparent drip chamber overlying a rigid float chamber. The purpose of the regulator is to control the...
3931818 Liquid administration apparatus  
A liquid administration apparatus includes a closed fluid system enabled by a double bore metering tube which leads from an intermediate sump fed by a supply container to a flow controlling float...
3776229 MEDICAL LIQUID ADMINISTRATION SET FOR RATE OR VOLUME DELIVERY  
A parenteral liquid administration set which is readily changeable between delivering liquid at measured "rate" through a drip chamber that has a constant liquid level, and delivering liquid from...
3756233 LIQUID ADMINISTRATION APPARATUS  
An administration set includes a narrow bore valveless metering tube which leads from a liquid container to a vented drip chamber. From the drip chamber, the liquid discharges through one end of an...
3738361 CONTROL DEVICE FOR PARENTERAL LIQUID FEED APPARATUS  
A fluid flow control device for an administration set used to introduce parenteral liquids into a patient. The control device has a body releasably attached to a container storing the liquid and...
3656505 AUTOMATIC CUT-OFF FOR INTRAVENOUS EQUIPMENT  
A valve assembly is positioned in the drip chamber of a conventional intravenous container and includes a steel flotation ball which seals the chamber orifice when the intravenous liquid in the...
3521635 FLOWMETER DE-AERATOR FOR PARENTERAL FLUID ADMINISTRATION SET  
3465784 CHECK VALVE FOR INTRAVENOUS ADMINISTRATION OF LIQUIDS  
3227173 Valve for parenteral liquid feed apparatus  
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