Biomedical Engineering Reference
In-Depth Information
Figure 8.29
TEM photograph and SAED pattern of apatite on the surface
of the heat and 3 M NaOH-treated NiTi after soaking in the
1.5 SBF for 7 days (*: center of selected area electron
diffraction) [34].
8.7
Shape Memory Materials Application
Most of research based on application in the ield of shape memory
materials is oriented on biomedical application. In addition,
the industry also focuses on valves, damping systems, motion
mechanism, fastener rings, connectors, and couplings mentioned
earlier. Instantly growing knowledge about this interesting group
of the materials seems to be the most effective factor responsible
for improvement in properties and the creation of new range of
application in other promising areas.
Interesting medical applications include a cardiovascular
scenario in which angioplasty and aneurysms treatment procedures
are solved by self-expanding implants and devices; orthopedics
with spacers; staples for healing acceleration; plates for bone
recovery (Fig. 8.30.); and surgical instruments such as non-kinking
microsurgical instruments,
drills, hingeless instruments, graspers,
and needles.
Figure 8.30
Application example of shape memory bone plate ixed on
human jaw and detailed view of a four-hole miniplate and
miniscrew [10].
