| University Park, Pa.—When we think about the
essentials to the classroom, paper, pens, and books
comes to mind. Perhaps a highlighter or some white
out. But, most will never have the vas deferens of
a bull on special order, or a biopsy needle used in
surgery or a special sheathing used in endoscopic procedures.
For the students of Mary Frecker's
mechanical engineering class, these special items are
the essentials for the classroom.
Mechanical Design Systems ME 415 is a senior design
course for mechanical engineering majors that give
students a first-hand look at what their future worlds
may have in store for them. Frecker teaches a ''special-emphasis''
section of ME 415 focused on medical device design,
where the project sponsors include physicians from
Hershey Medical Center and other area hospitals.
Frecker, associate professor of mechanical engineering,
explains that students who sign up for her section
''do so because of their interest in engineering
applications in the medical profession.'' Tamara
Cohen (ME '06) said she was ''excited this
section was offered, because this is exactly what
I want to do.'' Frecker's students worked on everything
from the creation of a new concept for vasectomy
procedures as well as improving the equipment used
in endoscopic surgery and creating a more economical
solution to producing wheelchair lifts.
Each group of students teams up with a medical professional
through the Learning Factory. The Learning Factory
works to bring industry sponsors and the College
together, giving students the opportunity to work
with real-world challenges. What sets Frecker's students
apart from the rest is their passion for the medical
profession.
Armand Daigle, a senior mechanical
engineer major, Danielle Bishop (ME
'06), Jennifer Donatelli (ME '06)
and Dan Toth (ME '06) worked closely
with anesthesiologist Dr. Morteza Gharib of Altoona
in the design of a new mechanical device used to
hold a regional anesthesia needle. Gharib, had a
very specific plan in mind, he wanted the anesthesia
needle to remain steadily in place, while allowing
for adjustments as needed. Not only did Gharib want
to free his hand of holding the needle, he also wanted
to eliminate the need of a second person to hold
the needle.
Toth, who was responsible for creating CAD drawings,
machining and fabrication, said the success of the
senior design experience really depends on how responsive
the sponsor is, ''We had an exceptional sponsor that
interacted well with our team and provided a lot
of great feedback.''
Detail is of the utmost importance for students
while working on their projects. As students began
calculations for designing and building their prototype,
they've learned that even the smallest of variation
could greatly upset their final outcomes. The team
of Ben Frasch, senior mechanical
engineering, Timothy Crede, senior
mechanical engineering, John Brossman (ME
'06), and Tamara Cohen worked to create a new mechanism
to help lessen the surgical time for a vasectomy
reversal. The group learned quickly that even the
tiniest error in rounding could cause the mechanism
to malfunction.
Each team of students must analyze all aspects of
their project and experiment with a variety of possible
solutions. Frasch, Crede, Brossman and Cohen’s
team website explains how ''a design matrix was used
to choose a sealant ring design for the device from
among four different variations.'' By performing
a variety of tests, the team ascertained that a sealant
ring design was the best fit for project.
Similarly, the team of Doug Harsch,
a senior mechanical engineer, and 2006 mechanical
engineering graduates Adam Scherba, Matt
Smith and Steve Mergler used
a design matrix when working to create a new device
used to control and endoscope. The 'BioLions' reviewed
the results of their design matrix with sponsor Dr.
Abraham Mathew of the Hershey Medical Center, and
chose to use ''a 'Finger Loop' design where the sheath
movement is controlled with the index finger,'' as
explained by their website.
While many teams worked to create or modify products
used during medical procedures, some teams worked
to better inventions that help disabled individuals
go about everyday activities. 2006 mechanical engineering
graduates Eric Scherzberg, Richard
Scherzberg, Frederick Schneider and Jeffery
Yatsko worked with Kurt Weber of the Flinchbaugh
Company, Inc., of York, Pa., to improve the platform
assembly of a wheelchair lift.
Flinchbaugh was looking to not only improve the
assembly of the lift, but to also decrease costs
in the process. This team of students was able to
help do just that. By studying the capability of
less expensive materials in a modified design, the
group worked to meet the needs of Flinchbaugh.
Yatsko explains that ''designing a new safety apron
is just one of the ways we worked to cut down on
the overall cost of production.'' Flinchbaugh has
already incorporated the students' design into their
commercial wheelchair lift.
Every year students walk away confident that they’ve
worked to make a difference. ''All in all, I think
this class is a solid foundation for getting out
in the real world,'' says Daigle.
Frecker is proud of her class for coming together
within their teams and creating viable solutions
for the medical industry. ''It's a great experience
for the students,'' she says. ''By having the opportunity
to work with individuals within the industry, students
are much more equipped for their post-graduate plans.'' |