Corpus ID: 35743125

Artificial Organs with Nanotechnology and Development of the New Diagnosis Tool

  title={Artificial Organs with Nanotechnology and Development of the New Diagnosis Tool},
  author={T. Yambe},
The Aim of the research in the Medical Engineering field is the development of the new diagnosis tool and therapeutic tools for the medical fields. One example of the research theme is an artificial internal organs based on Nano-technology. As for an implantable type artificial organ, a space for implantation is restricted. Therefore, micro device development is indispensable. Nanotechnology and micromachining technology development are very important. In Tohoku University, various artificial… Expand


Morphological Approach for the Functional Improvement of an Artificial Myocardial Assist Device using Shape Memory Alloy Fibres
  • Y. Shiraishi, T. Yambe, +20 authors D. Homma
  • Medicine
  • 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
  • 2007
The authors have been developing a mechano-electric artificial myocardial assist system (artificial myocardium) which is capable of supporting natural contractile functions from the outside of the ventricle without blood contacting surface and it was indicated that the effective assistance might be achieved by the contraction by the newly-designed artificial my cardiac assist system using Biometal. Expand
Biochemical evaluation of an artificial anal sphincter made from shape memory alloys
The findings indicate that the artificial sphincter SMA demonstrated no adverse influence on blood serum chemistry and exhibited an effective system performance. Expand
Ultrasound Speed and Impedance Microscopy for in vivo Imaging
  • Y. Saijo, N. Hozumi, +5 authors T. Yambe
  • Materials Science, Medicine
  • 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
  • 2007
Ultrasound speed and impedance microscopy was developed in order to develop in vivo imaging system. The sound speed mode realized non-contact high resolution imaging of cultured cells. This mode canExpand
Ultrasonic Tissue Characterization of Atherosclerosis by a Speed-of-Sound Microscanning System
A new concept sound speed microscopy that can measure the thickness and speed of sound in the tissue using fast Fourier transform of a single pulsed wave instead of burst waves used in conventional SAM systems is proposed. Expand
Acute and chronic consequences of non-pulsatile blood flow pattern in long-term total artificial heart experiment.
  • J. Vašků, J. Wotke, +9 authors T. Yambe
  • Medicine
  • Pathophysiology : the official journal of the International Society for Pathophysiology
  • 2007
It is concluded that the presence of pulsatile flow should be considered as a vital condition for a successful long-term survival after total artificial heart implantation. Expand
Evaluation of cardiac function based on ventricular pressure-volume relationships during assistance with a rotary blood pump
  • D. Ogawa, A. Tanaka, +7 authors M. Yoshizawa
  • Computer Science, Medicine
  • 2006 International Conference of the IEEE Engineering in Medicine and Biology Society
  • 2006
Evaluating whether Emax, which is an index for cardiac function based on the pressure-volume relationships, is still valid during assistance with the RBP from an animal experiment revealed that there were typical differences in the shapes of P-V loops when the cardiac function was altered. Expand
Cardio-ankle vascular index (CAVI) for the monitoring of the atherosclerosis after heart transplantation.
The results of this study suggested that CAVI was a stable parameter in comparison to baPWV even after heart transplantation, which may be useful in the diagnosis of arteriosclerosis after heart transplants. Expand
Fractal dimension of 40 MHz intravascular ultrasound radio frequency signals.
Fractal dimension images may be used as a feature for intravascular ultrasound tissue characterization and present better resolution then the correlation images, indicating that the hard or slow moving tissues in the correlation image usually have low fractal dimension and vice-versa. Expand
Metabolic syndrome: Clinical concept and molecular basis
The metabolic syndrome is a cluster of insulin resistance, elevated blood pressure, and atherogenic dyslipidemia and is a common basis of cardiovascular diseases (CVD). Although the precise mechanismExpand
A hydrodynamically suspended, magnetically sealed mechanically noncontact axial flow blood pump: design of a hydrodynamic bearing.
To overcome the drive shaft seal and bearing problem in rotary blood pumps, a hydrodynamic bearing, a magnetic fluid seal, and a brushless direct current (DC) motor were employed in an axial flowExpand