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Class 604/6.05 - Single needle


Subclass of Class 604 - Surgery
Definition: Subject matter wherein a single blood transfusion needle
No. of patents: 63
Last issue date: 08/02/2011


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NumberTitleIssue Date
7988655Catheter pump, catheter and fittings therefore and methods of using a catheter pump
A catheter pump includes a catheter channel communicating with a distal end portion of the catheter for alternatingly leading fluid in proximal and distal directions. At least one outlet passage is distally spaced from the inlet passage or passages. The catheter pum...
08/02/2011
7608053Extracorporeal blood processing methods with return-flow alarm
This invention provides a method for controlling a fluid separation system, preferably a blood apheresis system having a leukocyte reduction chamber. The method utilizes a return-flow alarm system. A return-flow alarm-triggering pressure is specified, and when press...
10/27/2009
7494477Catheter pump, catheter and fittings therefore and methods of using a catheter pump
A catheter pump includes a catheter channel communicating with a distal end portion of the catheter for alternatingly leading fluid in proximal and distal directions. At least one outlet passage is distally spaced from the inlet passage or passages. The catheter pum...
02/24/2009
7374678Apparatus and method for separating and concentrating fluids containing multiple components
An apparatus that allows for separating and collecting a fraction of a sample. The apparatus, when used with a centrifuge, allows for the creation of at least three fractions in the apparatus. It also provides for a new method of extracting the buffy coat phase from...
05/20/2008
7367942Method and apparatus for testing blood glucose in a reversible infusion line
An apparatus for automatically and periodically measuring a patient's blood glucose level wherein the patient has a catheter in a blood vessel and is receiving infusion fluid through the catheter. A testing unit is provided which has a main infusion channel and, in ...
05/06/2008
7351218Device and process for extracorporeal treatment by citrate anticoagulant
A device for treating blood by extracorporeal circulation comprising a filter having a first chamber and a second chamber separated by a semi-permeable membrane. The device has an arterial line connected to the first chamber of the filter, a venous line issuing from...
04/01/2008
7273465Device and methods for body fluid flow control in extracorporeal fluid treatments
Disclosed are devices and methods for the control of body fluid flow in the extracorporeal treatment of body fluid. Body fluid flow through on of a body fluid flow circuit (10, 50, 60, 100 or 250) is controlled by alternating applying vacuum pressure a...
09/25/2007
7264607Circuit for extracorporeal blood circulation
A circuit for extracorporeal blood circulation, which is used for a single-needle dialysis, comprises a blood withdrawal line (2) having an arterial pump portion (23), and a blood return line (4) having a venous pump portion (43). Pump po...
09/04/2007
7204828Collection needle
A needle structure having proximal and distal ends and including a collection needle section at a more proximal end of the needle structure and a skin plug retainer section at the very distal end and integral with the collection needle section. The collection needle...
04/17/2007
7147615Needle dislodgement detection
An apparatus for detecting dislodgement of a needle inserted into a patient includes a sensor for detecting wetness due to blood and a sensor holder to secure the sensor to the patient such that the sensor detects wetness due to blood loss from the patient upon disl...
12/12/2006
7144365Implantable heart assist system and method of applying same
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and method of using same. One embodiment of the extracardiac system comprises a pump ...
12/05/2006
7037428Integrated automatic blood processing unit
A system for automatically processing blood components is described. The system includes a console, which contains all motors, pumps, sensors, valves and control circuitry, and a unique disposable set that includes a cassette supporting a centrifuge with an improved...
05/02/2006
7013703System and method of evaluating or calibrating a bubble detector
A bubble detector utilizes an ultrasonic transducer to sample bubbles as they pass the transducer. The envelope of the return signal is analyzed to determine the volume of each sampled bubble. If the total volume of bubbles sampled within a certain period of time ex...
03/21/2006
7011742Blood product transfer system
A system for transferring blood product between a blood storage bag and a processing bag. The system includes an airtight containment chamber for supporting therein one or more blood storage bags. A door is provided for access to the chamber and there is included an...
03/14/2006
6962575Single access dialysis needle
A single access dialysis needle system comprises a first cannula, a second cannula or sheath, and a barrier arranged on the outer surface of the first cannula. The distal end of the first cannula extends distal to the distal end of the second cannula or outer sheath...
11/08/2005
6716187Platelet concentration syringe kit
A single-use system for separating blood and producing platelet concentrates includes an elongated container for receiving blood from a patient. The container has a movable plunger mounted within the blood container for expressing blood fractions separated during ce...
04/06/2004
6706008Automated system and method for withdrawing compounds from blood
Automated systems and methods for withdrawing a selected compound from blood are disclosed. The systems and methods utilize a disposable fluid circuit mounted on a re-usable hardware component or module. The system withdraws blood from a donor or patient, separates ...
03/16/2004
6641552Blood collection and separation system
A system compact enough to be located entirely beside the donor's chair, and able to process the blood while the donor is still resting in the chair after having donated the blood. The separated blood components (plasma and red blood cells) may be stored ...
11/04/2003
5871459Apparatus for treating blood
In an apparatus for the extra-corporal treatment of blood wherein blood is supplied from a body to a vacuum bottle via a conduit and an insertion spike, the insertion spike is in communication, by way of a gas hose, with a pressure compensation bag from w...
02/16/1999
5795317Extracorporeal blood processing methods and apparatus
An extracorporeal blood processing system is disclosed which includes a variety of novel components and which may be operated in accordance with a variety of novel methodologies. For instance, the system includes a graphical operator interface which direc...
08/18/1998
5782792Method for treatment of rheumatoid arthritis
Rheumatoid arthritis is treated by the extra corporeal removal of IgG and IgG-containing circulating immune complexes from the patient's blood. Removal is preferably accomplished by exposing the blood or blood plasma to a protein A immunoadsorbent which b...
07/21/1998
5651766Blood collection and separation system
A system compact enough to be located entirely beside the donor's chair, and able to process the blood while the donor is still resting in the chair after having donated the blood. The separated blood components (plasma and red blood cells) may be stored ...
07/29/1997
5649903Apparatus and methods for generating leukocyte free platelet concentrate
Methods and devices for separating leukocytes from a leukocyte contaminated blood fraction by use of a rotating membrane filter apparatus. The invention includes methods/devices for preparing substantially leukocyte free platelet concentrate for therapeut...
07/22/1997
5437624Single needle recirculation system for harvesting blood components
A single needle system for withdrawing donated blood, processing the blood to harvest components such as platelets, and returning processed blood to the donor through the single needle. Processing is performed by a centrifuge which separates blood compone...
08/01/1995
5403272Apparatus and methods for generating leukocyte free platelet concentrate
Methods and devices for separating leukocytes from a leukocyte contaminated blood fraction by use of a rotating membrane filter apparatus. The invention includes methods/devices for preparing substantially leukocyte free platelet concentrate for therapeut...
04/04/1995
5382227Apparatus and method for setting the level of a liquid in a chamber of an extracorporeal blood circuit
The invention relates to an apparatus and a method for setting the level of a liquid in a chamber of an extracorporeal blood circuit. The chamber contains liquid in its lower portion and air in its upper portion. It is connected to a pump for causing the ...
01/17/1995
5358482Single-needle extracorporeal plasmapheresis circuit
Single-needle extracorporeal plasmapheresis circuit, has a filter in which plasma is separated from the blood with a membrane subject to transmembrane pressure. Two connections to the filter in the blood circuit include one connection of a line to a singl...
10/25/1994
5318511Method and apparatus for controlling the circulation of blood in a single needle circuit
A single needle extracorporeal blood circuit for connection to a blood treatment device includes an arterial portion having an arterial reservoir, an end for connection to the needle, an end for connection to the blood treatment device, and a first valve ...
06/07/1994
5298020Neonatal autotransfusion apparatus and method
Method and apparatus for collecting neonatal blood following the birth of an infant during cesarean section surgery. A needle is injected into the infant's umbilical cord and a syringe fluidly connected to the needle is aspirated to draw blood from the co...
03/29/1994
5188593Dual lumen catheter
A dual lumen catheter, for insertion into a vein of a patient for use in haemodialysis treatments, having first and second portions defining a shorter intake lumen and a longer return lumen. The intake lumen is closed at its end and receives blood through...
02/23/1993
5141490Single-needle type plasma separation apparatus and plasma collection apparatus
The single-needle type plasma separation apparatus of the present invention comprises a blood collection needle; a blood collection container; a first blood transportation tube connecting the blood collection needle to the blood collection container; a bl...
08/25/1992
5120303Method and apparatus for hemodialysis with a single needle
The dialysis apparatus with a single needle comprises a reversible pump (3) controlled by a program so as to provide, in the first rotation direction, for the removal of a predetermined blood volume outside the circulatory system of a patient (P), the tre...
06/09/1992
5112298Apheresis method and device
A simplified fluid separation method and device usable for various apheresis procedures, including plasmapheresis. At least one pump is utilized to draw a first fluid (e.g. whole blood) into a separation device. The separation device then operates to sepa...
05/12/1992
5098373Process for controlling blood pumps in the extra-corporeal circuit of a single needle arrangement and apparatus thereof
The invention is directed to a process and an arrangement for control of blood pumps in an extra-corporeal circuit provided to a single needle arrangement. In order to avoid recirculation, in accordance with the invention it is provided that the arterial ...
03/24/1992
5057073Dual lumen catheter
A dual lumen catheter, for insertion into a vein of a patient for use in haemodialysis treatments, having first and second portions defining a shorter intake lumen and a longer return lumen. The intake lumen is closed at its end and receives blood through...
10/15/1991
5053023Catheter for prolonged access
A flexible dual lumen catheter is provided for use especially in prolonged access. The catheter is especially used for such access in haemodialysis treatments and includes an elongate body having side-by-side lumens, distal and proximal ends, and one of t...
10/01/1991
4954128Therapeutics plasma exchange system
The system includes a plasmapheresis instrument and a harness set applied to the instrument. The harness set has a single venepuncture needle and is configured, when applied to the instrument, to pump blood from a donor through a separator for collection ...
09/04/1990
4940455Method and apparatus for single needle dialysis
A dialysis apparatus includes a series blood circuit that extends from a single needle through a hemodialyzer and back to the needle. Extending from this circuit is a single ended arm that includes a pump and a blood accumulation chamber. The pump is cycl...
07/10/1990
4850998Method for wetting a plasmapheresis filter with anticoagulant
A method of wetting a plasmapheresis filter with anticoagulant in a plasmapheresis system having a venepuncture needle, a plasma separation device connected in series by a fluid conduit, including operating the system such that an initial limited volume c...
07/25/1989
4842582Method and apparatus for using dual-lumen catheters for extracorporeal treatment
A patient dependent on extracorporeal treatments is subjected to minimal insertion trauma and pain both before and after a fistula operation. A phlebotomy method is disclosed using a veno-occlusive tourniquet or ligation occluding a venous segment at a lo...
06/27/1989
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