The IBM 2991 Blood Cell Processor was a blood cell washer developed by IBM Systems Development Division in Endicott, New York. It was first marketed by IBM Systems Supplies Division (SSD) in 1972. The processor washed fresh blood or frozen, thawed blood. In the case of frozen, thawed blood, the blood was washed to remove the cryogenic agent, typically, glycerol. [1]
In 1964, IBM received a grant from the National Cancer Institute (NCI) of the National Institutes of Health (NIH). This was a result of an IBM engineer, George T. Judson, requesting to work on a continuous-flow blood centrifuge. He had observed the need for such a machine when visiting NCI in 1962 after his son was diagnosed with leukemia. As a result of this work, IBM developed the NCI-IBM Blood Cell Separator which was announced in 1965. At that announcement, Judson and his co-worker Alan Jones were approached by Dr. James R. Pert, Director of the American Red Cross Blood Research program in Washington, D.C. He told them of the need for a machine to separate packed red cells from glycerol. The glycerol is added to the red cells to protect the cells during freezing. The processor was announced in September 1972 at the American Association of Blood Banks (AABB) in Washington, D.C.
Up until the 1970s, SSD had been at the heart of IBM, for it had produced the millions of punch cards that had been extremely profitable for IBM for more than four decades. By the 1970s business was declining, as IBM's concentration increasingly turned to computing. Accordingly, the vice president in charge of SSD, Everett "Van" Van Hoesen, avidly searched for any new business that could be slotted into SSD. So SSD, an otherwise dying division, became a hotbed of innovation.
Searching for these new products Van started a campaign to win the first (2991) product 'mission', though SSD did not have any significant history of machine production. One key factor, though, was that the products being tendered for also comprised a substantial element of on-going income from the related supplies. In the case of the blood products the annual supplies income could easily run at a rate approaching the capital value of the machine. It was a situation that was familiar to SSD, brought up on the similar philosophy inherent in the punched card business. Van won the mission, probably due to his enthusiasm; and assisted by the fact that the business was much less attractive to other plants.
SSD subsequently added the IBM 2997 Blood Cell Separator and the IBM 5880 ECG System to its line of products.
The machine works by spinning a unit of blood in its centrifuge with various concentrations of saline solution. The machine spins the red cells in a circular bag and then uses a hydraulic system to express out saline, plasma, glycerol used in the freezing process, and unwanted plasma proteins.
The blood is washed in a special, single-use washing kit with a circular bag and five tubing lines branching from a central tube from the circular bag. These lines are inserted into the unit of blood to be processed, saline solutions, or an attached waste bag. The washed blood can be labeled in the circular bag or transferred into a more traditionally shaped blood storage bag. Because the washing process creates an open system, red blood cells washed with this machine expire after 24 hours when kept at 1-6 °C. [2]
The IBM 2991 is still in use today[ as of? ] in many blood banks for washing red blood cell units. The machine is now manufactured and supported by Terumo BCT and sold as the COBE® 2991 cell Processor. [3]
A centrifuge is a device that uses centrifugal force to subject a specimen to a specified constant force, for example to separate various components of a fluid. This is achieved by spinning the fluid at high speed within a container, thereby separating fluids of different densities or liquids from solids. It works by causing denser substances and particles to move outward in the radial direction. At the same time, objects that are less dense are displaced and moved to the centre. In a laboratory centrifuge that uses sample tubes, the radial acceleration causes denser particles to settle to the bottom of the tube, while low-density substances rise to the top. A centrifuge can be a very effective filter that separates contaminants from the main body of fluid.
Glycerol, also called glycerine or glycerin, is a simple triol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in lipids known as glycerides. Because it has antimicrobial and antiviral properties, it is widely used in wound and burn treatments approved by the U.S. Food and Drug Administration. Conversely, it is also used as a bacterial culture medium. Its presence in blood can be used as an effective marker to measure liver disease. It is also widely used as a sweetener in the food industry and as a humectant in pharmaceutical formulations. Because of its three hydroxyl groups, glycerol is miscible with water and is hygroscopic in nature.
Cryobiology is the branch of biology that studies the effects of low temperatures on living things within Earth's cryosphere or in science. The word cryobiology is derived from the Greek words κρῧος [kryos], "cold", βίος [bios], "life", and λόγος [logos], "word". In practice, cryobiology is the study of biological material or systems at temperatures below normal. Materials or systems studied may include proteins, cells, tissues, organs, or whole organisms. Temperatures may range from moderately hypothermic conditions to cryogenic temperatures.
Apheresis is a medical technology in which the blood of a person is passed through an apparatus that separates out one particular constituent and returns the remainder to the circulation. It is thus an extracorporeal therapy.
Plasmapheresis is the removal, treatment, and return or exchange of blood plasma or components thereof from and to the blood circulation. It is thus an extracorporeal therapy, a medical procedure performed outside the body.
Miele is a German manufacturer of high-end domestic appliances and commercial equipment, headquartered in Gütersloh, Ostwestfalen-Lippe. The company was founded in 1899 by Carl Miele and Reinhard Zinkann, and has always been a family-owned and family-run company.
Ficoll is a neutral, highly branched, high-mass, hydrophilic polysaccharide which dissolves readily in aqueous solutions. Ficoll radii range from 2 to 7 nm. It is prepared by reaction of the polysaccharide with epichlorohydrin. Ficoll is a registered trademark owned by GE Healthcare companies.
Fetal bovine serum (FBS) is derived from the blood drawn from a bovine fetus via a closed system of collection at the slaughterhouse. Fetal bovine serum is the most widely used serum-supplement for the in vitro cell culture of eukaryotic cells. This is due to it having a very low level of antibodies and containing more growth factors, allowing for versatility in many different cell culture applications.
Sperm washing is the process in which individual sperms are separated from the semen. Washed sperm is used in artificial insemination using the intrauterine insemination (IUI) technique and in in vitro fertilization (IVF). It may also be used to decrease the risk of HIV transmission by an HIV-positive male, in which case the washed sperm is injected into a female using an artificial insemination technique.
Intraoperative blood salvage (IOS), also known as cell salvage, is a specific type of autologous blood transfusion. Specifically IOS is a medical procedure involving recovering blood lost during surgery and re-infusing it into the patient. It is a major form of autotransfusion.
The earliest roots of IBM's development of the IBM 2997 Blood cell Separator lay in the personal tragedy of one of IBM's development engineers, George Judson. In 1962, Judson's son, Tom, was diagnosed with leukemia. His physician was able to have Tom admitted to the Clinical Center of the National Cancer Institute (NCI) at the National Institutes of Health (NIH). On admission, they showed Judson a procedure to remove white blood cells from a patient. It was laborious. They would remove two units of blood, spin them in a bucket centrifuge, express the plasma into a satellite bag, and the white cells into another satellite bag. The packed red cells and the plasma would be recombined and administered to the patient. This would be repeated over and over. Judson, being an engineer, suggested that this could be done on a continuous-flow basis. He was sent to see Dr. Emil J. Freireich who expressed enthusiasm for the project. Judson returned to IBM and asked for a year's leave of absence to work on his ideas. IBM gave him the one-year leave with pay and provided engineering assistance.
Erythrocytapheresis is an apheresis procedure by which erythrocytes are separated from whole blood. It is an extracorporeal blood separation method whereby whole blood is extracted from a donor or patient, the red blood cells are separated, and the remaining blood is returned to circulation.
Packed red blood cells, also known as packed cells, are red blood cells that have been separated for blood transfusion. The packed cells are typically used in anemia that is either causing symptoms or when the hemoglobin is less than usually 70–80 g/L. In adults, one unit brings up hemoglobin levels by about 10 g/L. Repeated transfusions may be required in people receiving cancer chemotherapy or who have hemoglobin disorders. Cross-matching is typically required before the blood is given. It is given by injection into a vein.
Autotransfusion is a process wherein a person receives their own blood for a transfusion, instead of banked allogenic (separate-donor) blood. There are two main kinds of autotransfusion: Blood can be autologously "pre-donated" before a surgery, or alternatively, it can be collected during and after the surgery using an intraoperative blood salvage device. The latter form of autotransfusion is utilized in surgeries where there is expected a large volume blood loss – e.g. aneurysm, total joint replacement, and spinal surgeries. The effectiveness, safety, and cost-savings of intraoperative cell salvage in people who are undergoing thoracic or abdominal surgery following trauma is not known.
Cryopreservation or cryoconservation is a process where biological material - cells, tissues, or organs - are frozen to preserve the material for an extended period of time. At low temperatures any cell metabolism which might cause damage to the biological material in question is effectively stopped. Cryopreservation is an effective way to transport biological samples over long distances, store samples for prolonged periods of time, and create a bank of samples for users. Molecules, referred to as cryoprotective agents (CPAs), are added to reduce the osmotic shock and physical stresses cells undergo in the freezing process. Some cryoprotective agents used in research are inspired by plants and animals in nature that have unique cold tolerance to survive harsh winters, including: trees, wood frogs, and tardigrades.
Semen cryopreservation is a procedure to preserve sperm cells. Semen can be used successfully indefinitely after cryopreservation. It can be used for sperm donation where the recipient wants the treatment in a different time or place, or as a means of preserving fertility for men undergoing vasectomy or treatments that may compromise their fertility, such as chemotherapy, radiation therapy or surgery. It is also often used by trans women prior to medically transitioning in ways that affect fertility, such as feminizing hormone therapy and orchiectomies.
Audrey Ursula Smith was a British cryobiologist, who discovered the use of glycerol to protect human red blood cells during freezing.
The peeler centrifuge is a device that performs by rotating filtration basket in an axis. A centrifuge follows on the principle of centrifugal force to separate solids from liquids by density difference. High rotation speed provides high centrifugal force that allows the suspended solid in feed to settle on the inner surface of basket. There are three kinds of centrifuge, horizontal, vertical peeler centrifuge and siphon peeler centrifuge. These classes of instrument apply to various areas such as fertilisers, pharmaceutical, plastics and food including artificial sweetener and modified starch.
Washed red blood cells are red blood cells which have had most of the plasma, platelets and white blood cells removed and replaced with saline or another type of preservation solution. The most common reason for using washed red blood cells in transfusion medicine is to prevent the recurrence of severe allergic transfusion reactions that do not respond to medical treatment. The usual cause of these allergic reactions is proteins in the donor plasma. These proteins are removed by the process of washing the red blood cells.
Blood compatibility testing is conducted in a medical laboratory to identify potential incompatibilities between blood group systems in blood transfusion. It is also used to diagnose and prevent some complications of pregnancy that can occur when the baby has a different blood group from the mother. Blood compatibility testing includes blood typing, which detects the antigens on red blood cells that determine a person's blood type; testing for unexpected antibodies against blood group antigens ; and, in the case of blood transfusions, mixing the recipient's plasma with the donor's red blood cells to detect incompatibilities (crossmatching). Routine blood typing involves determining the ABO and RhD type, and involves both identification of ABO antigens on red blood cells and identification of ABO antibodies in the plasma. Other blood group antigens may be tested for in specific clinical situations.