| Patent Number |
Title Of Patent |
Date Issued |
| D435649 |
Bottle for dialysis machine |
December 26, 2000 |
|
| D435648 |
Bottle for a dialysis machine |
December 26, 2000 |
|
| D435647 |
Bottle for dialysis machine |
December 26, 2000 |
|
| D435646 |
Bottle for a dialysis machine |
December 26, 2000 |
|
| D403079 |
Chemical vessel |
December 22, 1998 |
|
| D395517 |
Chemical vessel |
June 23, 1998 |
|
| D395085 |
Dialysis machine |
June 9, 1998 |
|
| D383842 |
Dialysis machine |
September 16, 1997 |
|
| 7048898 |
Apparatus for preparing a fluid for a medical procedure |
May 23, 2006 |
| The invention provides an apparatus for preparing a fluid for a medical procedure by mixing of at least one medicament in the form of powder with water, the medicament is held in a vessel which defines a bottom, a side wall, and a top opening which is closed by an membrane for sealing th |
| 6868309 |
Dialysis machine with symmetric multi-processing (SMP) control system and method of operation |
March 15, 2005 |
| A method and control system computing platform for a dialysis machine that uses Symmetric Multi-Processing (SMP) architecture. The SMP architecture tightly couples multiple (e.g., 2) independent processors by sharing memory between the processors. A single shared memory is used by both |
| 6691047 |
Calibration of pumps, such as blood pumps of dialysis machine |
February 10, 2004 |
| A method of calibrating a pump that is subject to variations in flow rate based on inlet pressure variations, such as a peristaltic pump found in medical instruments. The pressure at the inlet of the pump is measured and recorded during prior uses of the pump. A mean or average inlet pre |
| 6355161 |
Bottles for dialysis machines and method for automatically identifying such bottles |
March 12, 2002 |
| A set of bottles for containing dialysate chemical formulations, chemical cleaning agents or the like is described. The chemical formulation bottles come in two varieties, sodium bicarbonate and liquid acid formulations, each bottle having a slightly different shape. The different shapes |
| 6280634 |
Method of determining system volume of a dialysis machine |
August 28, 2001 |
| A method of calibrating a dialysis machine to determine the volume of a dialysate flow path of the machine including a dialysate preparation tank includes the steps of introducing a known quantity of electrically conductive chemicals into the dialysate preparation tank, filling the d |
| 6153102 |
Disinfection of dead-ended lines in medical instruments |
November 28, 2000 |
| A method of disinfection of a dead-ended fluid line in a medical instrument such as a dialysis machine is described. The method comprises introducing a heated fluid into the fluid line, allowing the fluid to remain in the line for an experimentally determined optimal dwell period, removi |
| 6146523 |
User interface and method for control of medical instruments, such as dialysis machines |
November 14, 2000 |
| A user interface for a medical instrument such as a dialysis machine is described which uses both a touch screen and at least one hard key off of the touch screen to effectuate a change in a parameter associated with the operation of the machine or the treatment session. The user interfa |
| 6136201 |
Method of preparation of batch of physiologic solution |
October 24, 2000 |
| A batch of dialysate solution is made from a mixture of bicarbonate formulation and a liquid acid formulation. The liquid acid formulation is introduced into a dialysate tank and then removed from the tank and stored elsewhere, such as in an ultrafiltration tank, where it is diluted with |
| 6044691 |
Blood tubing set integrity tests for extracorporeal circuits |
April 4, 2000 |
| Several tests are described for verifying the integrity of the extracorporeal circuit of a medical instrument, such as a dialysis machine. One test verifies the condition of the blood tubing set. Another test verifies that the clamps in the arterial and venous lines adequately occlud |
| 5932110 |
Dialysate conductivity adjustment in a batch dialysate preparation system |
August 3, 1999 |
| A method of adjusting the final conductivity of a batch of dialysate to bring the conductivity down to a desired level is described. The batch of dialysate is prepared by mixing excess quantities (e.g., 5%) of dialysate solution chemicals with water to form a solution with a conductivity |
| 5932103 |
Withdrawal of priming fluid from extracorporeal circuit of hemodialysis machines or the like |
August 3, 1999 |
| A method for withdrawing priming fluid from the extracorporeal circuit of a dialysis machine is described which substantially prevents return of the priming fluid back to the patient. In accordance with the method, priming fluid is drawn from the extracorporeal circuit through the dialyz |
| 5863421 |
Hemodialysis machine with automatic priming by induced pressure pulses |
January 26, 1999 |
| A hemodialysis machine is described that has an extracorporeal circuit that is primed automatically prior to connection of the patient to the machine. The priming is accomplished by filling the extracorporeal circuit with a priming fluid, such as a saline or dialysate solution or blood. |
| 5858239 |
Methods and apparatus for adjustment of blood drip chamber of dialysis machines using touchscree |
January 12, 1999 |
| A method for raising or lowering the fluid level in a chamber in an extracorporeal circuit of a dialysis machine, such as an air trap or compliance chamber, is provided which uses a touch screen. The user of the machine is prompted to indicate on the touch screen the current or actual |
| 5788851 |
User interface and method for control of medical instruments, such as dialysis machines |
August 4, 1998 |
| A user interface for a medical instrument such as a dialysis machine is described which uses both a touch screen and at least one hard key off of the touch screen to effectuate a change in a parameter associated with the operation of the machine or the treatment session. The user interfa |
| 5783072 |
Lightweight noncompliant dialysate solution tank for batch dialysate preparation systems |
July 21, 1998 |
| A dialysis machine is described which has a batch dialysate preparation system comprising a lightweight, substantially noncompliant dialysate tank and volumetrically closed dialysate circuit. The tank is made from a polymeric material, such as polypropylene, with fiberglass windings on t |
| 5762782 |
Water treatment for dialysate preparation |
June 9, 1998 |
| Water treatment and pretreatment methods and processes for use in a dialysate preparation machine are described. In one aspect, water is passed through a first filter having chlorine removal properties and then passed into a line. Water is removed from the line at a sample location. |
| 5725776 |
Methods for ultrafiltration control in hemodialysis |
March 10, 1998 |
| Methods and apparatus for increasing the accuracy of ultrafiltration in a dialysis machine and decreasing the time required for dialysis. The machine inclused a substantially non-compliant tank for mixing and storing a batch of dialsyate. In a preferred form, the tank is a hollow vessel |
| 5716531 |
Method for determining sodium clearance of dialyzer |
February 10, 1998 |
| A method is described for determining the sodium clearance of a dialyzer. Dialysate containing sodium ions is circulated through the dialysate side of the dialyzer. Water is continuously circulated through the blood side of the dialyzer, the water being single passed through the blood si |
| 5714060 |
Disinfection of arterial and venous line connectors hemodialysis machine |
February 3, 1998 |
| A hemodialysis machine has ports of a disinfection manifold for receiving the arterial and venous line connectors terminating the arterial and venous lines. The ports are in fluid communication with a hydraulic system that circulates disinfection fluid through the machine including the |
| 5707086 |
Tubing connectors and parts for receiving the connectors |
January 13, 1998 |
| A connector for a tube and a port construction for sealingly and securely receiving the connector. The connector has a male luer comprising a locking hub and a cylindrical tubing port. The cylindrical tubing port receives the free end of the tube. A second piece is provided that enve |
| 5705066 |
Apparatus for opening a vessel |
January 6, 1998 |
| An apparatus is described for automatically opening and dispensing the contents of a vessel, for example, a vessel containing dialysate chemicals for dispersion into a dialysate preparation tank. The apparatus comprises a housing having an open interior region, with the vessel mounted ab |
| 5702606 |
Method of priming dialyzer |
December 30, 1997 |
| A method is described for priming a dialyzer placed in an extracorporeal circuit of a hemodialysis machine in situ. The method comprises the steps of substantially filling the extracorporeal circuit and the blood side of the dialyzer with fluid (such as dialysate, RO water, saline, etc.) |
| 5690831 |
Method of rinsing back blood to hemodialysis patient |
November 25, 1997 |
| A method is described herein for automatically rinsing blood back to a patient. The method comprises the steps of pumping dialysate (or, alternatively, saline solution) through a dialyzer into an extracorporeal circuit, and pumping blood in the extracorporeal circuit out the arterial |
| 5690821 |
Apparatus for supplying a batch of chemicals to a dialysate tank |
November 25, 1997 |
| A loading platform and chemical addition system are described for a machine that prepares a batch of dialysate. The loading platform is in fluid communication with a dialysate preparation tank, and receives chemical vessels that contain a batch quantity of dialysate chemicals. The ch |
| 5674404 |
Filter integrity test method for dialysis machines |
October 7, 1997 |
| A method is described for automatically testing the integrity of a dialyzer filter within a dialysis machine. The method consists of substantially removing fluids which may be present from the blood side of the dialyzer filter, pumping air into the blood side of the dialyzer filter with |
| 5674397 |
Debubblers |
October 7, 1997 |
| Apparatus for removing air bubbles from blood and from a dialysate solution are described herein. In one cassette-style embodiment of a blood debubbler, the debubbler includes front and rear covers, a fluid circuit board between the front and rear covers and defining a blood chamber |
| 5674390 |
Dialysis machine with leakage detection |
October 7, 1997 |
| A dialysis machine is described which provides for the detection of leakage anywhere in the machine. The machine includes integral water treatment, dialysate preparation and extracorporeal circuit modules. The floor of the machine is constructed in a non-horizontal manner so as to provid |
| 5670050 |
Method for detection of leakage of blood |
September 23, 1997 |
| A method for detecting the presence of blood in a dialysate solution is disclosed. The method provides for certain measurement of light intensity passing through solutions both before and during the dialysis session. Before dialysis is commenced, measurements are made of the intensity of |
| 5658456 |
Batch dialysate chemical vessel with machine-readable indicator |
August 19, 1997 |
| A vessel storing a batch of chemicals for delivery into a dialysate preparation tank includes a machine readable indicator, permitting automatic identification of the contents of the vessel prior to operating the vessel and introduction of chemicals into a tank where the dialysate so |
| 5651893 |
Disinfection of dialysis machine |
July 29, 1997 |
| High level disinfection of a home hemodialysis machine is achieved without the use of disinfection chemicals. The machine has a water treatment module, an extracorporeal circuit and a dialysate circuit. Purified water is heated to a high level disinfection temperature, such as 75 or 80 |
| 5645734 |
Dialysate separation method |
July 8, 1997 |
| A method for maintaining separation of old and new dialysate in a dialysate preparation tank is disclosed. The new dialysate is stored in the tank at a first temperature and withdrawn from the bottom of the tank. The dialysate is circulated through a dialyzer, and then returned to the ta |
| 5630935 |
Pressure relief valve with sample removal port |
May 20, 1997 |
| A water pressure relief device includes a sample removal port to permit samples of water to be removed from the device. The device has an insert placed in a central chamber disposed generally above the sample removal port. The user inserts an implement such as a syringe into the sample |
| 5591344 |
Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof |
January 7, 1997 |
| A dialysis machine is disclosed that incorporates a water treatment module, a dialysate preparation module having a dialysate circuit, and an extracorporeal circuit including a dialyzer and arterial and venous blood lines that connect to the patient. The machine accomplishes on-line |
