Novel_Spine_Stabilization_System-1
Download
Report
Transcript Novel_Spine_Stabilization_System-1
Executive Summary
Tech Discussion
Project description
(Kyle Halfacre)
Background
(George Trifon)
What We Are Doing
Why It Is Needed
How It Is Different
Subsystems
Block Diagram
Subsystem Relationship
Literature Review
Summary (Luciana Mottola)
Plan For Completion
Deliverables
Designation of Principal
Responsibilities
Required Financing
Timeline
Action Item List
Resources
Price List (Materials)
Resources
Price list
Equipment
Summary (Kyle Halfacre)
The majority of procedures
today utilize the pedicle screw
stabilization system.
The system screws into the
pedicle.
It fuses vertebra together.
Background
Screws tend to brake of come
out of bone.
Pedicle can brake off.
What We Are Doing
There a many problems associated with the current
pedicle screw stabilization system (Some of which can
be life threatening).
By eliminating the screws, we are drastically
reducing the trauma to the bone.
We are supporting the spine without any sort of
cutting, drilling or grinding on the bone.
We are developing a system that is durable and
reliable.
Why It Is Needed
The only options with current systems are;
A complete inter-vertebral fusion which does not
allow for any motion and generally utilizing the
pedicle screw system.
A dynamic system which has a high risk of failure
(currently being recalled).
Or other, more exotic systems that are still very
risky extremely traumatic and extremely invasive
(meaning, they are very painful requiring long
recovery time).
Why It Is Needed
Most of these systems require large and or heavy hand
tools and/or large and heavy power tools for cutting
and/or bending strong materials during the installation
procedure. (difficult installation usually means long
procedure, very invasive and extremely traumatic)
How It Is Different
Instead of drilling, our system will use
Pressure from pseudo-elastic, spring, or memoryshape alloy
High friction microstructure
Mechanical hold from shape to secure our device
into place.
Instead of complete fusion between vertebrae (which
immobilizes the spine), our system will utilize
Sintered alloy matrix
Infused with a bone morphogenetic protein (to
induce bone growth into it)
Bone fusion to Hardware which will allow motion
between vertebrae.
Deliverables
We will deliver an effective and efficient device.
THE SPINESTB WILL RETAIN THE SPINE’S NORMAL
FUNCTION!!!
By design the SPINESTB will be simple to assemble and
simple to install. (Lowering the possibility for human error)
The SPINESTB will be minimally invasive thereby reducing
recovery time.
The SPINESTB will cause little to no trauma to the bone
tissue during installation and during function.
The SPINESTB will allow for intra-vertebral disk recovery
and healing.
The SPINESTB will be modular, for easy modification and
upgrade.
Designation of Principal Responsibilities
DR.MAHAJAN
FACULTY TECHNICAL ADVISOR
Mechanical engineering
GEORGE TRIFON
(ME, PM)
Horizontal Force Applicator
Vertical Force Applicator
Ergonomic Interaction and Optimization
KYLE HALFACRE
LUCIANA MOTTOLA
(ME)
(ME)
Contact Pad
Lateral Bracket
Contact Site
Rear Linkage
Material Selection
BMP (Bone Morphogenetic Protein)
Required Financing
Price List (Materials)
200g
Tantalum ……………………………$100.00
0.5”x 3” Titanium.……………………………..$100.00
Stainless Steel (Bar Stock)……………………$100.00
Resources
Materials Processing Lab
Hot Press
Machine Shop
Lathe
Mill
Oxy-Acetelyne Torch
Tig Welder
Subsystem Relationship
Lateral Force Applicator
•Spring-like material
Vertical Force Applicator
Rear Linkage
•Spring-like material
•Metal
Lateral Brackets
•Metal
Contact Pad
•Metal
Bone
Contact Site
•Porous Metal
Axial View
Lateral View
Subsystem Relationship
Literature Review Summary
Introduction
• 400,000 lower back operations performed every year in the United
States.
• Herniated or
Osteoarthritis.
Ruptured
Disk,
Lumbar
Spinal
Stenosis,
Anatomy of the Vertebrae
• Facet joints, spinal canal, nucleus and the annulus.
• L1-L5, are the ones most frequently involved in back pain.
• The highest activity is located on the segments L3-L4 and L4-L5.
• The most strain is taken by the segments L4-L5 and L5-S1.
and
Literature Review Summary
One Level Fusion
• The one level fusion surgery normally contains four pedicle screws and
two rods along with connective hardware.
• Approaches: Anterior Lumbar Interbody fusion,Posterior Lumbar fusion
Interbody Fusion, Transforaminal Lumbar Interbody Fusion.
Dynamic Stabilization systems
•One of the most prevalent systems available today for spine stabilization is
the Dynesys Neutralization system.
Literature Review Summary
Spinal fusion through the use of bone cement
• Cements introduced in 1940.
• The most common use is in securing artificial joints in place. One
application is in hip replacement.
• The cement is used to fill gaps between the hardware that is inserted into
hollowed out hip bone and the bone itself.
Timeline
Action Item List
Project: Spine Stabilization System
Project Number: S09-98-SPINESTB
Team Members:
George Trifon,ME (PM)
Luciana Mottola, ME
Kyle Halfacre, ME
#
Activity
Person
Assigned
Due
Status
Obtain current prices of materials
LM
24-Aug
7-Sep
0%
Work Horizontal force applicator
GT
24-Aug
7-Sep
0%
Work on vertical Applicator
GT
24-Aug
7-Sep
0%
Work on Rear Linkage
LM
24-Aug
14-Sep
0%
Work on Lateral Brackets
LM
24-Aug
14-Sep
0%
Work on contact Pad
KH
24-Aug
14-Sep
0%
Produce Parts in solidworks
KH
24-Aug
21-Sep
0%
1
2
3
4
5
6
7
Item
Description
Quanti
ty
1
Computer
1
2
MS Office
1
3
ANSYS or SolidWorks
1
4
Printer
1
$ Each
on
hand
on
hand
on
hand
on
hand
$
Subtot
al
$0.00
$0.00
$0.00
$0.00
$0.00
$0.00
$0.00
$0.00
TASK
GT
LM
KH
DR.MAHAJAN
Obtain current
prices
(S)
(R)
(S)
(A)
Responsibility
(R)
Work on
Prototype
(R)
(I)
(I)
(A)
Approval
(A)
Produce parts in
SolidWorks
(S)
(S)
( R)
(A)
Support
(S)
Information
(I)
Project Overview
Elimination of bone anchors
Designation of Principal Responsibilities
Subsystem distribution
Plan to Finish on Time
Follow the projected timeline for milestones and due dates
Resources Needed
Most resources will be from the ME Computer lab, i.e. MS
Office, ANSYS, and printer