Ensures Adequate Flow through Life-Saving Devices
Transonic’s versatile implementation of ultrasonic transit time technology provides the biomedical engineer with a set of reliable volume flow measurement tools that are used at every stage in the development of heart assist devices and blood pumps. The Flowsensors and Flowprobes meet these changing requirements as a project develops in bench testing, and in-vivo testing. After proof of concept is established, custom Flowsensors and Flowboards are created for OEM devices.
Embed Transonic Flowmeters in
- iVAD - Implantable VADs
- pVAD - Percutaneous VADs
Assesses VAD Pump Types
Current Partners
MicroMed Technologies Inc., Woodlands, TX, offers the HeartAssist 5®, a miniaturized heart assist device designed to provide increased blood flow to patients with heart disease.
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MicroMed HeartAssist 5®
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Early in their project, in February 1997, MicroMed engineers contacted Transonic Systems to provide a miniaturized flow system that would meet the pump's tight mechanical and electrical specifications. A Transonic sensor was custom designed to be positioned on the VAD's outflow cannula to measure actual pump flow. A percutaneous cable leads from the sensor to a miniaturized Transonic flow board housed in the pump's battery pack which is worn on the patient's waist.
Transonic Systems is proud of its unique participation in this project which potentially benefits some of the 5 million American and 20 million people worldwide who suffer from heart disease
Related Publication References
Complications common to ventricular assist device support are rare with 90 days of DeBakey VAD® support in calves.
Fossum TW, Morley D, Olsen DB, Edwards J, Burns G, Miller MW, Franks J, Benkowski R, Thomas J, Benson P, Martinez E, Carroll G, Lynch B, Noon GP, DeBakey ME.
ASAIO J. 2001 May-Jun;47(3):288-92.
Clinical experience with the MicroMed DeBakey ventricular assist device.
Noon GP, Morley DL, Irwin S, Abdelsayed SV, Benkowski RJ, Lynch BE.
Ann Thorac Surg. 2001 Mar;71(3 Suppl):S133-8; discussion S144-6.
Turbine blood pumps
Noon GP, Morley D, Irwin S, Abdelsayed S, Benkowski R, Lynch BE.
Adv Card Surg. 2001;13:169-91. Review.
PMID: 11209655 [PubMed - indexed for MEDLINE]
Development and clinical application of the MicroMed DeBakey VAD®.
Noon GP, Morley D, Irwin S, Benkowski R.
Curr Opin Cardiol. 2000 May;15(3):166-71.
PMID: 10952423 [PubMed - indexed for MEDLINE]
The DeBakey ventricular assist device: current status in 1997.
Tayama E, Olsen DB, Ohashi Y, Benkowski R, Morley D, Noon GP, Nose Y, Debakey ME.
Artif Organs. 1999 Dec;23(12):1113-6.
PMID: 10619930 [PubMed - indexed for MEDLINE]
Chronic survival of calves implanted with the DeBakey ventricular assist device.
Fossum TW, Morley D, Benkowski R, Tayama E, Olsen DB, Burns G, Miller MW, Franks J, Martinez E, Carroll G, Edwards J, Vinnerqvist A, Lynch B, Stein F, Noon GP, DeBakey ME.
Artif Organs. 1999 Aug;23(8):802-6.
PMID: 10463511 [PubMed - indexed for MEDLINE]
The safety system for the rotary blood pump, combination of the valve and LVAD pulsatile mode: in vitro test.
Tayama E, Ohashi Y, Niimi Y, Takami Y, Ohtsuka G, Nakata K, Benkowski R, Glueck JA, Nose Y.
Artif Organs. 1998 Apr;22(4):342-5.
PMID: 9555966 [PubMed - indexed for MEDLINE]
Protein adsorption onto ceramic surfaces.
Takami Y, Yamane S, Makinouchi K, Otsuka G, Glueck J, Benkowski R, Nose Y.
J Biomed Mater Res. 1998 Apr;40(1):24-30.
PMID: 9511095 [PubMed - indexed for MEDLINE]
Recent advances in the gyrocentrifugal ventricular assist device.
Nakazawa T, Benkowski R, Makinouchi K, Takami Y, Ohtsubo S, Glueck J, Kawahito K, Sueoka A, Schmallegger H, Schima H, Wolner E, Nose Y.
ASAIO J. 1998 Jan-Feb;44(1):94-7.
PMID: 9466508 [PubMed - indexed for MEDLINE]
Estimation of the minimum pump speed to prevent regurgitation in the continuous flow left ventricular assist device: left ventricular drainage versus left atrial drainage.
Tayama E, Ohashi Y, Niimi Y, Takami Y, Ohtsuka G, Benkowski R, Glueck JA, Nose Y.
Artif Organs. 1997 Dec;21(12):1288-91.
PMID: 9423981 [PubMed - indexed for MEDLINE]
Mapping of pump efficiency on the pressure-flow curve of a centrifugal blood pump.
Takami Y, Nakazawa T, Makinouchi K, Glueck J, Benkowski R, Nose Y.
Artif Organs. 1997 Aug;21(8):953-7.
PMID: 9247186 [PubMed - indexed for MEDLINE]
Hemolytic effect of surface roughness of an impeller in a centrifugal blood pump.
Takami Y, Nakazawa T, Makinouchi K, Tayama E, Glueck J, Benkowski R, Nose Y.
Artif Organs. 1997 Jul;21(7):686-90.
PMID: 9212939 [PubMed - indexed for MEDLINE]
Development and initial testing of a permanently implantable centrifugal pump.
Nakazawa T, Takami Y, Benkowski R, Ohtsubo S, Yukio O, Tayama E, Ohtsuka G, Niimi Y, Glueck J, Sueoka A, Schmallegger H, Schima H, Wolner E, Nose Y.
Artif Organs. 1997 Jul;21(7):597-601.
PMID: 9212924 [PubMed - indexed for MEDLINE]
A pivot bearing-supported centrifugal pump for a long-term assist heart.
Nakazawa T, Ohara Y, Benkowski R, Makinouchi K, Takami Y, Ohtsubo S, Kawahito K, Tasai K, Glueck J, Noon GP, Sueoka A, Schmallegger H, Schima H, Wolner E, Nose Y.
Int J Artif Organs. 1997 Apr;20(4):222-8.
PMID: 9195240 [PubMed - indexed for MEDLINE]
Improved flow straighteners reduce thrombus in the NASA/DeBakey axial flow ventricular assist device.
Kawahito K, Benkowski R, Ohtsubo S, Noon GP, Nose Y, DeBakey ME.
Artif Organs. 1997 Apr;21(4):339-43.
PMID: 9096811 [PubMed - indexed for MEDLINE]
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