U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "

Mark Twain ; Christmas greetings, 1890

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 604/6.11 - Pumping means


Subclass of Class 604 - Surgery
Definition: Subject matter wherein the blood is forced into or out
No. of patents: 320
Last issue date: 01/10/2012


              8  
NumberTitleIssue Date
4648866Process/apparatus for the withdrawal/return of body fluids
Process/apparatus for the processing of body fluids, advantageously comprising plasmapheresis technique for the fractionation of whole blood, features (i) means, e.g., a common blood transfusion needle, for withdrawing and returning body fluid from and to...
03/10/1987
4648384Retrograde 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 diastole to maximize retrograde perfusion. A global device seal...
03/10/1987
4634430Pump arrangement for medical purposes
Pump arrangement (10) for medical purposes, in particular blood or infusion pump, comprising a pump housing (12) having two pump chambers (16, 18), of which the work chamber (16) is subjected to the liquid to be pumped while the drive chamber (18) is conn...
01/06/1987
4627419Blood pump apparatus and method
A blood pump apparatus and method for pumping blood and pressure treating blood for minimizing hemolysis, platelet degradation, microthrombus and bubble formation. A blood pump apparatus for pumping and pressure treating blood comprising a flaccid chamber...
12/09/1986
4619639Method and apparatus for low pressure filtration of plasma from blood
A method and apparatus for carrying out separation of plasma from whole blood, in which whole blood is passed through a filtration membrane means of a material suitable for separating plasma from whole blood and having a pore size from 0.1 to 0.6 microns ...
10/28/1986
4614590Dialysis apparatus and method for its control
A dialysis apparatus utilizes an expansion chamber in parallel with a pump from which the chamber receives blood via a valve. During the return flow phase the pump rotates in the same direction; but, the valve is closed and a valve at the chamber outlet i...
09/30/1986
4598697Blood pump apparatus
There is provided a blood pump apparatus which can supply a pulsating flow of the blood to a body of a patient at a desired rate of flow. R waves are detected from an output of an electrocardiograph to produce a timing signal which is used for controlling...
07/08/1986
4596550Method and apparatus for ultrafiltration measurement in a two pump dialysis system
A blood flow system for processing blood has two phases of operation, an arterial phase and a venous phase. During the arterial phase, the system is filled with blood through operation of an arterial blood pump. When a predetermined blood pressure level i...
06/24/1986
4552552Pump system for use with dialysis and like apparatus
The present invention is with respect to a dialysis pumping system, and more specially to a single needle dialysis apparatus with a dialyser having blood and dialysate circuits and which has blood inlets and outlets that are joined by intake and outlet li...
11/12/1985
4529397Cardioplegic controlling and regulating system
A cardioplegic controlling and regulating device for the dosed perfusion of cardioplegic perfusion solution in open-heart surgery has a storage container for receiving the cardioplegic solution, which container is part of a scale and can be connected to t...
07/16/1985
4526515Fluid pumping assembly including a prepackaged fluid circuit module
A fluid pumping assembly includes a prepackaged, self-contained fluid circuit module which is selectively movable by an operator into and out of operative association with one or more pump rotors of an associated apparatus. The module includes a housing w...
07/02/1985
4514295Dialysis apparatus
A blood accumulator for use in single needle dialysis systems is provided with elastic walls so that expansion of the accumulator in an outward direction may take place and in the filled condition, the walls are stretched. After the blood input pump is st...
04/30/1985
4490134Dual phase blood flow system and method of operation
A blood flow system for processing blood has two phases of operation, an arterial phase and a venous phase. During the arterial phase, the system is filled with blood through operation of an arterial blood pump. When a predetermined blood pressure level i...
12/25/1984
4490135Single needle alternating blood flow system
A two-pump single needle hemodialysis system is provided in which a flexible blood accumulator bag is located between the dialyzer and the second, venous blood pump. The accumulator bag is filled as the first, arterial blood pump is operated. Blood is pum...
12/25/1984
4486189Dual mode hemodialysis system
A hemodialysis system capable of operation in either a single needle mode or a double needle mode includes an arterial blood pump which is the sole blood pump in the system during the double needle mode. For single needle mode operation a venous blood pum...
12/04/1984
4479761Actuator apparatus for a prepackaged fluid processing module having pump and valve elements operable in response to externally applied pressures
A fluid processing apparatus for use in conjunction with a prepackaged disposable fluid processing module of the type which includes an integral housing wherein fluid containers, tubing segments, and other components required in processing a fluid are con...
10/30/1984
4479760Actuator apparatus for a prepackaged fluid processing module having pump and valve elements operable in response to applied pressures
A fluid processing apparatus for use in conjunction with a disposable fluid processing module of the type which includes an integral housing wherein fluid containers, tubing segments, and other components required in processing a fluid are contained, and ...
10/30/1984
4474538Method and apparatus for circulating or pumping organo-biological liquids, in particular blood
The present invention relates to a method of circulating organo-biological liquids, preferably blood, wherein a liquid contained in a reservoir is released to a pressure (head) level below its original fluid pressure (head) level, thereafter raised period...
10/02/1984
4464164Flowrate control for a blood flow system
Blood flowrate in a hemodialysis system is controlled in accordance with the relative speeds of two periodically operated blood pumps. Information as to the speeds of the two pumps is converted to flowrate information, which is used to determine the mean ...
08/07/1984
4447191Control circuit for a blood fractionation apparatus
An apparatus for the continuous flow fractionation of whole blood incorporates motor driven whole blood, anticoagulant and replacement pumps, negative and positive pressure monitors, and a dual bubble detector which function in conjunction with a disposab...
05/08/1984
4411792Lymph filtration system
A lymphapheresis or lymph filtration system is disclosed for removing lymph from a patient, separating the lymph into a liquid fraction and a cellular component fraction and returning the liquid fraction to the patient. The system includes an input pump t...
10/25/1983
4379452Prepackaged, self-contained fluid circuit module
A prepackaged, self-contained fluid circuit module is selectively movable by an operator into and out of operative association with one or more pump rotors. The module includes a housing which supports two or more flexible conduits, which together define ...
04/12/1983
4353368Device for hemodialysis
A device for hemodialysis provided with: an artery needle, a set of hoses with a bubble trap, a blood pump, a hemodialyzer, a venous needle, a container of a dialyzing solution, a conduit for the dialyzing solution, a unit of sensors for measuring the tem...
10/12/1982
4280495Air emboli detection
Air emboli detection method and apparatus for use in cardiopulmonary bypass surgery or the like comprising modular sensor, control and power units. The sensor unit is adapted to releasably clamp a blood flow tubing or conduit in a vertical orientation bel...
07/28/1981
4275726Apparatus for fluid balancing under sterile conditions
Apparatus for removing fluid from and supplying fluid to the human body in substantially equal quantities includes a double tube pump (1), a measuring chamber (2), and a supply container (4), the pump being arranged to deliver fluid from the supply contai...
06/30/1981
4231366Blood flow monitoring and control apparatus
The present blood flow monitoring and control apparatus is especially use in connection with the so-called single needle technique, for example, for treatments such as dialysis, perfusion, or diafiltration. The blood pressure control is accomplished by a...
11/04/1980
4221543Bloom pump system
A blood pump system in which a roller pump is provided for pumping blood through a flexible tube. A low voltage D.C. motor is provided having an output shaft. An electrical control circuit is connected to the motor for applying the necessary voltage to dr...
09/09/1980
4185629Method and apparatus for processing blood
The blood processing method, and the apparatus for performing the steps of the method are utilized in separating whole blood into its components and include the steps of, or component parts of the apparatus for carrying out these steps of: pumping whole b...
01/29/1980
4148314Blood pressure alarm system for dialysis machines
There is disclosed herein a blood pressure alarm system for use in a dialysis machine whereby alarms may be activated, and a blood pump deactivated if the actual blood pressure increases above or decreases below predetermined levels. The levels are determ...
04/10/1979
4116589Extracorporeal pulsatile blood pump comprised of side by side bladders
Extracorporeal blood pumping apparatus for use, for example in cardiopulmonary bypass procedures, left ventricle assist, hemodialysis and the like. The pulsatile pump apparatus may comprise an elongated driver balloon and a similar blood pumping balloon p...
09/26/1978
4098275Dual flow cannula set
A dual cannula having two adjoining tubes, a leader tube and a follower tube, in staggered arrangement so as to form two separate and distinct passageways for the withdrawal and return of blood to a body. The blood return passageway terminates with a need...
07/04/1978
4063554Single needle alternating flow blood pump system
A blood pump system, typically employed in dialysis, includes a blood pump for withdrawing blood via a single hypodermic needle and valve means operated in synchronism therewith for returning treated blood via the same hypodermic needle. The operation of ...
12/20/1977
4041944Body fluid transfusion and displacement apparatus and method
A body fluid transfusion and displacement apparatus and method wherein the transfusion of blood, saline solutions or the like, may be maintained at an equilibrium in the patient volumetrically by means of apparatus which transfers blood out of the patient...
08/16/1977
3986956Artificial kidney device
An artificial kidney device is provided with a dialyzer for separating specified components from blood. A double walled tube is mounted midway of a tube provided for transporting the blood passed through the dialyzer into a vein of a human being, so as to...
10/19/1976
3985134Extracorporeal blood circuit
An extracorporeal blood circuit including a haemodialyser and a pump for pumping blood to and from the haemodialyser, and a single needle for the passage of the blood to and from the body. The single needle is connected to the stem of a Y-shaped coupling,...
10/12/1976
3965896Blood autotransfusion method and apparatus
Blood is autotransfused during surgical procedures involving a bleeding wound in which blood accumulates in the wound, by intermittently sucking the blood from the wound, anticoagulating the blood as it is collected, filtering the collected blood for the ...
06/29/1976
3964479Extracorporeal blood circulation system and drip chamber with adjustable blood level
In accordance with the invention there is provided an extracorporeal blood circulation system including a drip chamber having a blood inlet in its top and a blood outlet in its bottom, such chamber during operation containing blood in its bottom portion a...
06/22/1976
3949734Fluid pump control system
The system coordinates the speed of a blood pump, in an extracorporeal blood circuit for a patient, with the blood flow from the patient to pass the blood through a treatment device such as an oxygenator and then back to the patient. The blood from the pa...
04/13/1976
              8  
 
Sign InRegister
Username  
Password   
forgot password?