Transcript Tulane University Biomedical Engineering Spring Design Show February 27, 2010 Teams: First Place Winner: Mega Pascal Second Place Winner: What's All That Ratchet Blokes of Genius Fortress Classic TUPAC To navigate, click.

Tulane University
Biomedical Engineering
Spring Design Show
February 27, 2010
Teams:
First Place Winner:
Mega Pascal
Second Place Winner:
What's All That Ratchet
Blokes of Genius
Fortress Classic
TUPAC
To navigate, click anyplace on slide to move to next slide.
1
First Place Winner: Team Mega Pascal
Evacuation Cot
The Client: During a hurricane evacuation
in New Orleans, St. Margaret's Nursing
Home moves patients to a church
gymnasium in Jackson, MS. Trundle beds
are stored on site and set up by church
volunteers with some of St. Margaret's staff.
However these trundle beds are plagued
with many problems.
The Problem: The nursing home currently
uses a semi-collapsible trundle bed. The
bed legs collapse by folding in on
themselves. Because the entire bed rolls
over very easily, problems arise during
patient transfers . The client also requested
a side support to allow the patients to
stabilize themselves as they adjusted in the
bed. The low height of the cot caused staff
members to experience back strain when
tending to the patients. Some patients use
feeding tubes which requires the head of
the bed to be raised.
Team Members: Lin Bai, James Gallagher, Xavier Alvarez,
Todd Johnson (not pictured)
The team's task was two-fold: To develop
an interim modification of the current trundle
beds to improve safety and stability and to
provide a low-cost preliminary solution. In
addition, the team aimed to propose a new
product to solve the needs of the patients.
2
First Place Winner: Team Mega Pascal
Evacuation Cot
The Goal: Improve the current trundle bed with simple modifications to better meet the functional requirements of the client, and
provide a customized new commercial product that better satisfies the functional requirements of the client.
The current bed: Stability was the major concern in modifying the current cot. The casters located in the center of the bed along with
the U-shaped legs allowed the bed to easily roll. The casters were removed and replaced with wooden studs. Studs were bolted to the
collapsible legs. The added weight and support dramatically improved the stability of the unit. Cords fastened the legs to the frame
which keep them from collapsing during typical use.
Functional Requirements :
Tier One: Stability during normal
operations and loading
Support weight up to 350 lbs., sustain a
wide range of patient motion and positions
during transfers, adjustable to 45 °
incline, suitable height for both patient and
staff, removable side support and
boundary.
Tier Two: Ease of storage and setup
Easily assembled by one or two people,
minimize required storage space, durable
and reusable.
Tier Three: Sleeping surface must
meet patient standards
Satisfactory comfort and sanitary needs,
anchored mattress, minimal pressure
exertion in mattress ( a mattress that
slopes at the foot is ideal per client
suggestion.
Foreground cot to the right: Current trundle bed without improvements
Background cot to the left: Modified cot with studs to improve stability.
3
First Place Winner: Team Mega Pascal
Evacuation Cot
The New Product: The Deluxe Surge Cot #4 by ARC Products from MedSled
is wheelchair height. A head elevator encompasses a wide range of angles.
The legs on either end can be locked. Additional leg members help stabilize
the frame. Product features satisfy the core functional requirements, but
further modifications are made to enhance safety and ease of use, including
construction of aluminum rails and a controlled release mechanism for the
head-prop. These additional components increase patient and staff safety,
are detachable and do not detract from the physical integrity of the cot.
Back view of surge cot
Surge cot: Front view
Side view
4
Second Place Winner: Team What's All That Ratchet
Hygienic Changing Lift
The Client: The caregivers from a local
elementary school need a lift to raise
children from low heights to a convenient
hygienic surface for cleaning and
changing. The design must suit students
from kindergarten to eighth grade.
Factors Determining the Goals:
Reducing Physical Strain: The design will
prevent the caretakers from straining their
backs while lifting students or hurting their
knees while changing students on the
ground.
Sanitary Changing: With the vinyl mat
and high density polyethlene table top,
students and caretakers not be at risk of
passing on pathogens during the
changing process. These hygienic
surfaces can be quickly and easily
cleaned after each use.
Team Members: Garret Gros, Jardin Leleux, Shanna Connolly
Size Accommodation: With the
modified hydraulic table, the size of the
students and height of the caretakers will
no longer be an issue. The table can lift to
a height of approximately 3 feet. It is 2.5
feet in width and 6 feet in length.
5
Second Place Winner: Team What's All That Ratchet
Demonstration
View of undercarriage
Hygienic Changing Lift
Providing a Clean Surface: Students will
remain on a vinyl mat throughout the
changing process. The custom made mat
can easily be cleaned with traditional
cleaning products. Also the mat is durable
enough for heavy use. The steel hydraulic
lift has a walled high density polyethylene
table top on which the student will rest. The
materials are non-porous to prevent any
body fluids from affecting the usage and
maintenance of the product.
6
Team Blokes of Genius
Whisper Lift Integrative Seating Environment
The Client: A ten year old girl with
arthrogryposis has a physical limits in range of
motion and overall mobility, requiring her to
greatly adapt to the school environment.
Limitations in her upper extremities and gait
affect all routine tasks. In the classroom, she
experiences back pain due to uncomfortable
seating arrangements.
Design Goals: .
1. Develop a power lift chair to serve as a
stable platform from which to raise and lower
student at her desk. The desk is designed for
multiple classroom use.
2. Design a desk and chair that will look as
close as possible to other students' seating
arrangements.
3. Design and develop a desk with integrated
storage for classroom materials.
Design Solution: Custom built Red Oak
base, inversely mounted linear acruator, heavy
duty casters, heavy duty rubber grippers,
custom desk surface with integrated chair
controller, writing utensil holder, book/notebook
organizer.
Team members: Benjamin Cappiello, Taylor Elrod, Joseph
Majdi, Kevin Sheerin
7
Team Blokes of Genius
Whisper Lift Integrative Seating Environment
Power Lift Chair: .
* Chair frame provides stability to support load and allows for mobility with addition of casters.
* Base with rubber grippers serves as sturdy platform to prevent chair movement while raising and lowering.
Side of chair featuring power lift mechanisms
Chair front with remote control
8
Team Blokes of Genius
Whisper Lift Integrative Seating Environment
Integrated Desk
* An actuator controller flush-mounted into desk's surface for easy access.
* Notebook/school supply organizer allows student to quickly retrieve necessary materials.
Student demonstration of lift procedure
Power lift chair and desk with storage for
classroom materials
9
Team Fortress Classic
Assistive Device to Transfer a Limited Mobility Student Into a Canoe
The Client and Project:
The team is working with the Louisiana
Outdoors Outreach Program (LOOP)
to design a mobility assistance device
to transfer a student from a wheelchair
down a slight slope into a canoe
partially submerged in water. The
purpose of LOOP is to allow students
from Title I public schools in the Greater
New Orleans areas to engage in
outdoor activities. The primary focus is
on outdoor education with classes
throughout the year involving various
trips with the LOOP program.
Team Members: Michael Liu, Allison Douglas, Donald Campbell (not pictured)
Existing Problems:
* Transfer and canoe ride is
uncomfortable for the student.
* The student has to be physically
carried by an aid.
* Distance to canoe from wheelchair is
significant.
* Difficult to place student inside canoe
because of student's limited use of
legs.
* Student needs back support once in
canoe.
10
Team Fortress Classic
Assistive Device to Transfer a Limited Mobility Student Into a Canoe
Design Criteria:
* All terrain wheeled transfer device with removable seat.
* Provides seat with back support and fits snugly within canoe.
* Requires assistance of two aids, yet makes transfer more convenient.
* Comfortable for student use.
* Wheel frame aspires to be portable to be taken along in canoe if necessary.
* Prototype made out of PVC.
Solution and Initial Prototype:
The prototype of the proposed design is constructed of 1 ½ inch diameter PVC pipe, PVC primer/cement, 15/32” plywood, Ubolts, and all-terrain wheels with stainless steel casters.
All terrain wheeled transfer device with removable seat
Removable seating frame can be transfered into
canoe
11
Team Fortress Classic
Assistive Device to Transfer a Limited Mobility Student Into a Canoe
Canoe with removable seat
Operating Procedure:
1. Student is transferred out of personal wheelchair
into all terrain device.
2. Student is transferred down terrain next to side of
the canoe.
3. Seat is detached from device and placed inside of
canoe for support and comfort during the ride.
4. Removed from canoe and placed back on device
after completed trip.
Plans for Final Design: Addition of a collapsible
handle bar system to allow more assistants to aid in the
transfer, adopting a more robust material for use in the
frame, implementing a locking mechanism that does not
create an obstruction when transferring the chair from
frame to the canoe.
Closeup of seat in canoe
12
Team TUPAC
Highly Portable Patient Lift
The Project:
The team is designing a mechanical lift device for a client. The system will allow him to move easily from his wheelchair to
his bed and vice versa. The client will be in a semi- recumbent position during the transfer. The system is being designed to
be portable and lightweight, but still safe and easy to use.
Team Members: John Huck, Joshua Thieman, Austin Dobbins
13
Team TUPAC
Highly Portable Patient Lift
Functional Requirements for Device:
* Vertically lift/lower the client.
* Move the client horizontally between his wheelchair and bed.
* Portable for travel by both car and plane.
* Require minimal effort by the user.
* Operate in different environment, client's home and travel settings
* Sling has to accommodate the client's semi-recumbent position.
Side view of portable lift
Front view of portable lift
14
Team TUPAC
Highly Portable Patient Lift
Model Features:
Highly portable design
The lift folds down to the size of a large duffel bag
making it ideal for a variety of travel situations and
methods.
Ease of use
The integrated hydraulic lift system is easy to use
and provides large amount of force allowing
people of all ages to operate the lift.
Targeted position of patient in lift
Custom Designed Semi-Recumbent Slings
The custom designed sling allows the user to
remain in a comfortable semi-recumbent position
during transfer.
Safety Information
The device is planned to be built from aluminum
and steel tubing, a heavy duty hydraulic cylinder,
and high test fabric for the sling. The stress
analysis of the lift was performed to validate the
design and material choices. This has led to a
high factor of safety and low probability of failure.
Folded view of portable lift
15
Team Design Show
People Photos
Waiting for the results
–- And waiting
Announcement of
winners
---- And waiting
Nap time
16
Elizabeth Kirkland
Photographer & Editor
©2010