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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 4619639 | Method 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 |
| 4614590 | Dialysis 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 |
| 4604089 | Pressure regulated irrigation system for arthroscopy A pressure regulated system for an irrigation system including a reservoir of irrigation fluid, a pump, catheters for providing access to and egress from the irrigation site and a pressure regulation circuit, all connected in series with one another. The ... | 08/05/1986 |
| 4596549 | Blood dialyzing method and apparatus The blood of a patient to be dialyzed is circulated out of the patient's body through an extracorporeal circuit including a blood pump and a dialyzer. The dialyzer has a solution supply piping for the supply of a dialyzing solution thereto and a discharge... | 06/24/1986 |
| 4552552 | Pump 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 |
| 4529397 | Cardioplegic 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 |
| 4514295 | Dialysis 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 |
| 4492531 | Apparatus for producing a controlled pulsed liquid flow An apparatus designed for supplying liquid by means of a roller pump into a membrane module having membranes provided therein in such a way that liquid is introduced in pulsed state into the membrane module by periodically opening and closing a flow path ... | 01/08/1985 |
| 4486189 | Dual 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 |
| 4479760 | Actuator 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 |
| 4479761 | Actuator 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 |
| 4445884 | Air purge unit for auto transfusion apparatus An air purge unit for an auto transfusion device is provided wherein a housing having a passageway therein is mounted on the top wall of a blood collection chamber. A filter having pore sizes smaller than the size of red blood cells is disposed within sai... | 05/01/1984 |
| 4231366 | Blood 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 |
| 4063554 | Single 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 |
| 4041944 | Body 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 |
| 4014329 | Method and apparatus for autotransfusion of blood A method and device is provided for autotransfusion of blood during surgery. The shed blood is retrieved from the surgical field via a receiving vessel located within a vacuum chamber and under less vacuum than the vacuum applied to the chamber. The vacuu... | 03/29/1977 |
| 3965896 | Blood 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 |
