Independent Navigation System for a Surgical Colonoscope Lilia A. Ochoa-Luna, Carlos Avilés-Cruz, Tanneguy Redance Pages: 1-6
ABSTRACT: This paper provides a novel algorithm to attain the
independent navigation of a colonoscopy surgical
endoscope. First, it introduces a brief description of this
issue through the scientist advance for medical robotics. It
then makes a quickly count of the existent methods and at
the end it provides the basis in order to propose a new
alternative solution with help from vision-guidance. That
means that images will be processed and interpreted with
the purpose of maintaining the endoscope always at the
intestine center.
All this considered will help us to reduce colonoscopy
surgeries consequences and the most important advantage
of this new method proposed is that surgeons will
accomplish their work easier and more efficiently.
Effect of Magnetic Field on Adhesion of Muscle Cells to Culture Plate Shigehiro Hashimoto, Keiji Tachibana Pages: 7-12
ABSTRACT: The effect of a magnetic field on adhesion of cultured muscle
cells to the culture plate has been studied in vitro. An
experimental system was manufactured to apply a magnetic
field to muscle cell culture. The system consists of a couple of
solenoid coils, a culture dish of 52 mm internal diameter, and an
inverted phase-contrast microscope. The solenoid coil
generates the alternating magnetic field of 13 mT of the
effective value at a period of 0.01 s with the electric current of
the rectangular pulses. C2C12 (Mouse myoblast cell line
originated with cross-striated muscle of C3H mouse) cells were
suspended in Dulbecco’s Modified Eagle’s Medium. The
suspension was poured into the plastic dish placed on the stage
of the microscope. The culture dish was exposed to the
magnetic field between the solenoid coils at 29 degrees Celsius.
For comparative study, a part of the suspension was poured into
the same kind of dish without exposure to the magnetic field at
29 degrees Celsius. The number of cells, which adhered to the
bottom of the culture dish, was traced according to the time
(<130 min) during exposure to the alternating magnetic field.
The experimental results show that adhesion is accelerated with
alternating magnetic field of 13 mT.
A Vein Map Biometric System Felix Fuentes, Dulal C. Kar Pages: 13-18
ABSTRACT: There is increasing demand world-wide, from government
agencies and the private sector for cutting-edge biometric
security technology that is difficult to breach but userfriendly
at the same time. Some of the older tools, such as
fingerprint, retina and iris scanning, and facial recognition
software have all been found to have flaws and often
viewed negatively because of many cultural and hygienic
issues associated with them. Comparatively, mapping
veins as a human barcode, a new technology, has many
advantages over older technologies. Specifically,
reproducing a three-dimensional model of a human vein
system is impossible to replicate. Vein map technology is
distinctive because of its state-of-the-art sensors are only
able to recognize vein patterns if hemoglobin is actively
flowing through the person
Enzyme Computation - Computing the Way Proteins Do
Jaime-Alberto Parra-Plaza, Jaime Velasco-Medina, Eduardo Caicedo-Bravo Pages: 19-24
ABSTRACT: It is presented enzyme computation, a computational
paradigm based on the molecular activity inside the
biological cells, particularly in the capacity of proteins to
represent information, of enzymes to transform that
information, and of genes to produce both elements
according to the dynamic requirements of a given system.
The paradigm explodes the rich computational possibilities
offered by metabolic pathways and genetic regulatory
networks and translates those possibilities into a
distributed computational space made up of active agents
which communicate through the mechanism of message
passing. Enzyme computation has been tested in diverse
problems, such as image processing, species classification,
symbolic regression, and constraints satisfaction. Also,
given its distributed nature, an implementation in
dynamical reconfigurable hardware has been possible.
A Telematic Support System for Emergency Medical Services Michael Protogerakis, Arno Gramatke, Klaus Henning Pages: 25-28
ABSTRACT: The presented system is part of the research project Medon-@
ix for the safe application of information technology in
preclinical emergency health care. It aims at supporting members
of the emergency medical services (EMS) at the incident
location from a remote Competence Centre.
In this paper cases in which a telematic support system can be
used will be outlined. This includes the assistance of medical
and non-medical staff in emergency incidents. The functional
and non-functional requirements for the on site medical devices,
the documentation system and the medical decision support system
in the Competence Centre will be outlined. This paper also
presents a possible hardware and software system architecture
approach to a telematic support system.
Simulation of Cell Group Formation Regulated by Coordination Number,
Cell Cycle and Duplication Frequency Shigehiro Hashimoto, Motofumi Toda, Masa Mizobuchi, Takashi Kuromitsu Pages: 29-33
ABSTRACT: The effects of coordination number, a cell cycle and duplication
frequency on cell-group formation have been investigated in a
computer simulation. In the simulation, multiplication occurs
in the last three steps of a cell cycle with a probability function
to give variations in the interval. Each cell has a constant
coordination number: four or six. When a cell gets surrounded
by adjacent cells, its status changes from an active stage to a
resting stage. Each cell repeats multiplication, and disappears
when the times of multiplication reach to the limit. Variation
was made in the coordination number, in the interval of
multiplication and in the limited times of multiplication. The
cells of the colony, which have the larger number of
coordination, have reached the larger maximum population and
disappeared earlier.
Person Recognition Method using Sequential Walking Footprints
via Overlapped Foot Shape and Center-Of-Pressure Trajectory Jin-Woo Jung, Sang-Wan Lee, Zeungnam Bien, Tomomasa Sato Pages: 34-39
ABSTRACT: One emerging biometric identification method is the use of
human footprint. However, in the previous research, there
were some limitations resulting from the spatial resolution of
sensors. One possible method to overcome this limitation is
through the use additional information such as dynamic
walking information in sequential walking footprint. In this
study, we suggest a new person recognition scheme based on
both overlapped foot shape and COP (Center Of Pressure)
trajectory during one-step walking. And, we show the
usefulness of the suggested method, obtaining a 98.6%
recognition rate in our experiment with eleven people. In
addition, we show an application of the suggested method,
automatic door-opening system for intelligent residential
space.
| | A New Approach for Designing Biodegradable Bone Tissue Augmentation Devices
by Using Degradation Topology Optimization Chia-Ying Lin, Chengyu Lin, Scott J. Hollister Pages: 40-45
ABSTRACT: The current study proposed a topology optimization method
accounting for base material degradation and create a
degradable device that retains sufficient stiffness through the
degradation process to provide load bearings for tissue
regeneration in orthopaedic applications. Degradable materials
are less stiff than permanent materials and suffer further
stiffness reduction through time when considering those as
substitutes to replace permanent materials for many
reconstruction applications. Merely replacing the permanent
material with a degradable material in the same design may lead
to early device failure. Since many degradable materials lose
material through bulk erosion without shape change, the
proposed optimization method creates a density distribution
map for selected time points during degradation. These
different density distributions are then linearly superposed using
both time and degraded base stiffness weighting factors. In
this paper, the method is applied to design a degradable spine
interbody fusion cage device from poly(propylene
fumarate)/beta-tricalcium phosphate (PPF/β-TCP). The
weighted optimization study successfully produced designs that
maintained device stiffness better than either non-weighted or
conventional designs. Any bulk degrading material can be
designed using this process for any skeletal reconstruction
application.
Biologically-inspired Adaptive Movement Control for a Quadrupedal Robot Haojun Zheng, Xiuli Zhang Pages: 46-50
ABSTRACT: Biologically-inspired robot motion control has attracted a lot of interests because of its potential to make a robot
perform better and the value of such study to understand
animals’ behaviors. This paper presented a quadrupedal
robot, Biosbot, with variety of motion abilities and
adaptability to its environment. We employed biological
neural mechanisms, such as central pattern generator,
flexor reflex and postural reflex as Biosbot’s control
system, meanwhile designed its acts after its animal
counterpart, a cat. Biosbot can walk in different gaits,
transfer from one gait to another, turn, clear obstacles
and walk up and down hill autonomously, to adapt to its
environment. The successful walking experiments with
Biosbot prove the approach and control model has the
ability to improve legged robot’s performances.
Iris Recognition Using Wavelet
Khaliq Masood, Muhammad Younus Javed, Abdul Basit Pages: 51-55
ABSTRACT: Biometric systems are getting more attention in the present era.
Iris recognition is one of the most secure and authentic among
the other biometrics and this field demands more authentic,
reliable and fast algorithms to implement these biometric
systems in real time. In this paper, an efficient localization
technique is presented to identify pupil and iris boundaries using
histogram of the iris image. Two small portions of iris have been
used for polar transformation to reduce computational time and
to increase the efficiency of the system. Wavelet transform is
used for feature vector generation. Rotation of iris is
compensated without shifts in the iris code. System is tested on
Multimedia University Iris Database and results show that
proposed system has encouraging performance.
Towards the Use of Super-Resolution in
Biomedical Systems-on-Chip Gustavo M. Callico, Sebastian López, Félix Tobajas, Valentin De Armas, José F. López, Antonio Núñez, Roberto Sarmiento Pages: 56-61
ABSTRACT: Super-resolution is a smart process capable of generating
images with a higher resolution than the resolution of the sensor
used to acquire the images. Due to this reason, it has acquired a
significant relevance within the medical community during the
last years, especially for those specialties closely related with
the medical imaging field. However, the super-resolution
algorithms used in this field are normally extremely complex
and thus, they tend to be slow and difficult to be implemented
in hardware. This paper proposes a new super-resolution
algorithm for video sequences that, while maintaining excellent
levels in the objective and subjective visual quality of the
processed images, presents a reduced computational cost due to
its non-iterative nature and the use of fast motion estimation
techniques. Additionally, the algorithm has been successfully
implemented in a low-cost hardware platform, which guarantees
the viability of the proposed solution for real-time biomedical
systems-on-chip.
Use of the Structure of Blood Vessel
for Detection of Brain Aneurysm and Route Search to Brain Aneurysm Toshihide Miyagi, Norihiro Abe, Yoshimasa Kinoshita, Tatsushi Tokuyasu, Hirokazu Taki, Shoujie He Pages: 62-67
ABSTRACT: In this research, we constructed functions that
are necessary for the operation simulation system which
assists medical students to inhibit brain aneurysm from
exploding. The system reported in this paper is
“detection of blood vessels”, “detection of brain
aneurysm” and “route planning to brain aneurysm”. Not
only the detection method but also the method to reduce
the miss detection is realized for the detection of blood
vessel.
Finally, the future work will be shown including
construction of head model consisting of artery, vein,
brain and cranium.
An Introduction to Micro/Nano-Bubbles and their Applications Tomohiro Marui Pages: 68-73
ABSTRACT: Micro-bubbles gradually decrease in size due to the
dissolution of interior gases by the surrounding liquid and
eventually disappear, leaving some Nano-Bubbles. It has
been proved that free radicals are generated during the
collapsing of Micro-bubbles.
The present introduction focuses on the biological
application of Micro/Nano-bubbles, whose practical bioapplications,
development of cell-level biological treatment,
and concept of cell manipulating device in the next stage of
the development are introduced. In addition, the future
application of Micro/Nano-bubbles to Bio-computing
systems is also discussed.
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