Matches 201 - 250 out of 273 < 1 2 3 4 5 6 >
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4154792 Distribution system for blood treatment apparatus  
A stacked membrane apparatus for dialyzing or oxygenating blood, in which the blood compartment is isolated from the fluid (e.g., dialysate or oxygen) compartment without compressive forces being...
4151088 Membrane diffusion device with integral heat exchanger and reservoir  
A diffusion system for blood including a membrane diffusion device comprising a plurality of blood flow paths positioned in interleaving diffusion exchange relation, with second fluid flow paths...
4148606 Sterilization of dialyzer  
Sterilization of a dialyzer, using a saturated and wet semipermeable membrane and irradiating said dialyzer in the presence of an antibacterial agent. The method is especially effective and safe,...
4132594 Gas diffusion liquid storage bag and method of use for storing blood  
It has been found that the shelf life of stored whole blood may be doubled by adding a buffer which maintains a desired pH level. However, this buffer causes the generation of CO 2 which, if not...
4128479 Blood-gas exchanger  
A unit is presented for the transfer of a gaseous component in one stream to or from a liquid component in another stream, in which a membrane assembly is wound spirally around a central rigid...
4111659 Mass and heat transfer exchange apparatus  
Device suitable for use in heat and mass transfer applications comprising a manifold structure having outwardly extending protrusions from the surface thereof and which is spirally wound into a...
4093515 Laminated carbon-containing silicone rubber membrane for use in membrane artificial lung  
A blood-compatible gas-permeable laminated carbon-containing silicone rubber membrane for use in a membrane artificial lung. The membrane is composed of at least two layers wherein the first layer...
4061470 Blood oxygenator utilizing a removable membrane oxygenator unit  
An oxygenator for blood which comprises means for removably holding a membrane oxygenator unit, means for conveying blood to a patient through the oxygenator unit in a first flow path and back to...
4022692 Non-woven support screen for mass transfer devices  
An improved non-woven support screen for mass transfer devices including a first set of parallel spaced longitudinally extending filaments having a predetermined thickness or diameter and a second...
4008047 Blood compatible polymers for blood oxygenation devices  
Fluoroacylation of ethyl cellulose has been found to result in good gas permeability and blood compatibility for polymeric layers made from the resulting fluorinated esters. The fluoroacylated...
3998593 Membrane blood oxygenator  
A membrane blood oxygenator-blood heat exchanger combination including a gas exchange section of multi-layer structure having alternate layers of rectangular polymer membranes and rectangular mesh...
3977976 Apparatus for exchange of substances between two media on opposite sides of a membrane  
An apparatus for exchanging substances through a membrane which is permeable thereto has a drum or the like rotatably disposed in a housing, a membrane in spaced relation with the housing and drum...
3969240 Polysiloxane membrane lung  
A polydimethylsiloxane gum without silica filler is applied to silicone rubber membranes for use in a membrane lung.
3934982 Blood oxygenator  
A blood oxygenator comprising a first embodiment of a fluid tight housing having a chamber formed therein one end of which is fluid connected by a conduit to a source of blood to be oxygenated, the...
3929414 Blood oxygenator utilizing a removable membrane oxygenator unit  
An oxygenator for blood which comprises means for removably holding a membrane oxygenator unit, means for conveying blood to a patient through the oxygenator unit in a first flow path and back to...
3927980 Oxygen overpressure protection system for membrane-type blood oxygenators  
A safety system is provided for a membrane-type blood oxygenator to prevent the possibility of gas embolism through the membranous barrier which separates the blood and the oxygen. The safety...
3927981 Membrane-type blood oxygenator with recycle of oxygen-containing gas  
A blood oxygenator in which a blood oxygenator chamber is divided into two compartments by a membrane, blood being fed to and from the first compartment, and oxygenated gas being fed to the second...
3912637 Exchange device  
This disclosure relates to an exchange assembly which may be utilized to any purpose, but is preferably in the form of an exchange assembly which may be utilized for medical purposes such as an...
3907504 Blood oxygenation system including automatic means for stabilizing the flow rate of blood therethrough  
An apparatus for sensing and signaling changes in the pressure and volume of a fluid passing therethrough, the apparatus comprising: (a) a hollow chamber; (b) a compliant reservoir for holding the...
3894954 Treatment of blood  
A device for treating blood comprising a first set of fluid channels for blood and a second set of channels for a treatment fluid. Each channel of the first set is defined by a pair of panels of...
3893926 Membrane fluid diffusion exchange device  
The device includes: a housing defining a closed chamber therein; a plurality of tubular silastic membranes extending through the chamber; first inlet and outlet means opening in the chamber for...
3892533 Oxygenator gas distribution header  
A spool wound membrane oxygenator or artificial lung. The oxygenator includes a membrane envelope assembly wound around a core of a plastic spool with the principle of gas diffusion through a...
3890969 Cardiopulmonary bypass system  
An emergency alertable gravity feed cardiopulmonary bypass system is disclosed in which a blood volume responsive transducer is utilized in returning oxygenated blood to a human circulatory system...
3862031 MULTI-LAYER MEMBRANE TYPE MASS TRANSFER DEVICE AND PROCESS  
A foldable cardboard backing is secured to one surface of a flexible mass transfer membrane to enable rapid formation of a folded multi-layered device by compressing the backing and membrane...
3856475 AN APPARATUS FOR TRANSFERRING A GAS BETWEEN TWO LIQUIDS  
An artificial lung which has a plurality of flexible and resilient small diameter tubes constructed of a gas pervious material and extending in a generally upright direction through a surrounding...
3841837 OXYGENATOR  
An oxygenator primarily for human blood has a stator with a cavity partly defined by a first substantially flat wall and a peripheral wall and has a rotor with a second substantially flat wall...
3839204 INTEGRAL BLOOD HEAT AND COMPONENT EXCHANGE DEVICE AND TWO FLOW PATH MEMBRANE BLOOD GAS EXCHANGER  
A device for oxygenating or dialyzing blood has elementary units comprising a heat exchanger close-coupled to a component exchanger comprising one or more frames having rectangular openings and a...
3834544 MEMBRANE DIFFUSION APPARATUS  
Membrane diffusion apparatus for use as a blood oxygenator, dialyzer, or for general diffusion or heat transfer purposes. One example is a disposable blood oxygenator comprising a plurality of...
3792978 ENVELOPE ASSEMBLY FOR SPOOL TYPE OXYGENATOR  
The invention relates to an envelope assembly for a spool wound artificial lung. The envelope assembly is characterized by having unobtrusive tube attachments which allow the envelope to be wound...
3777507 RENAL PRESERVATION SYSTEM  
A cassette for use with a transport or an in-hospital support module to retain organs in viable condition that is generally boxed shaped and has side by side organ receiving chambers in fluid...
3771658 BLOOD TRANSPORT MEMBRANE PUMP  
A slow speed drive rotates a cylindrical exchanger pump which operates as a blood oxygenator, and also operates alternatively as a blood dialyser. The pump has a cylindrical rotor permanently...
3733776 LIQUID MEMBRANE ARTIFICIAL LUNG  
An artificial lung is created by contacting liquid membrane encapsulated, oxygen containing gas bubbles with blood. The oxygen permeates the membrane rapidly going into the blood. The CO 2 ...
3729098 TREATING BLOOD  
Device for treating blood comprising an elongated tubular member of semi-permeable membrane defining a blood flow path, a pair of membrane supports extending adjacent the path on opposite sides of...
3724673 TEXTURED MEMBRANES FOR BLOOD DIALYZERS OXYGENATORS AND THE LIKE  
A myriad of small undulations or projections are formed permanently in a thin membrane to give it a textured surface. The membrane may be permselective for use in fluid exchange devices such as...
3705652 APPARATUS FOR STERILE MATERIAL EXCHANGE  
An apparatus for the sterile material exchange in solutions, which comprises a conventional membrane in form of a hose, a grid of synthetic material, and a hollow empty hose of synthetic material....
3684097 BLOOD COMPONENT EXCHANGE DEVICE  
A device for oxygenating or dialyzing blood has elementary units comprising pairs of frames having rectangular openings and a gas permeable membrane on each face. Two confronting membranes define a...
3673612 NON-THROMBOGENIC MATERIALS AND METHODS FOR THEIR PREPARATION  
Non-thrombogenic materials prepared by reacting a heparin-type anticoagulant, hydroxyl, or combinations of hydroxyl and acetal groups that are part of already synthesized macromolecules having an...
3651616 PROCESS FOR EFFECTING ABSORPTION OR REMOVAL OF GAS FROM A LIQUID  
Gases, e.g., oxygen, are advantageously absorbed by or removed from aqueous liquids, especially blood, by passage along a partial pressure gradient through a waterproof, porous membrane having...
3612281 PARALLEL MEMBRANOUS LAYER TYPE FLUID DIFFUSION CELL  
A fluid diffusion cell having a diffusion membrane folded to define a first set and a second set of oppositely opening pockets. Each pocket in both sets contains a support member, and a pair of...
3567028 MEMBRANE ENVELOPE ASSEMBLY  
A sterile, relatively inexpensive, disposable membrane envelope assembly is provided with the assembly consisting of a pair of spaced opposed extended surface membranes sealed together, a pair of...
3547271 MEMBRANE FLUID DIFFUSION EXCHANGE DEVICE  
3534860 PRESSURE SEAL-MANIFOLD UNIT  
3526481 BLOOD OXYGENATOR  
3515640 COMBINATION PUMP AND OXYGENATOR  
3505686 DEVICE FOR EFFECTING BLOOD INTERCHANGE FUNCTIONS  
3506406 PORTABLE MEMBRANE BLOOD OXYGENATOR  
3503850 BLOOD OXYGENATOR  
3490523 TRANSFER DEVICE  
3489647 ARTIFICIAL ORGAN FOR MEMBRANE DIALYSIS OF BIOLOGICAL FLUIDS  
3484211 MEMBRANE OXYGENATOR  
Matches 201 - 250 out of 273 < 1 2 3 4 5 6 >