Transcript FEBPM Device - Electrical, Computer & Biomedical Engineering

Preston Steele
BME 281
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The brains ability to
actively rewire itself in
response to external
stimuli
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Creation of BION
microstimulator based
on this
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Uses FES(Functional
Electrical Stimulation) to
send small electric
shocks to muscles to
induce movement
Small capsule with
rechargeable battery,
antenna and charging
coil for electrical
impulses inside
In glass casing with
nickel on the ends
2.1 mm diameter, 16 mm
long
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1791- Luigi Galvani
1960- Liberson’s drop foot stimulator
developed
1989-when AMF began work on the
microstimulator
2008-AMF develops working prototypes of
injectable microstimulators without
exoskeletal system
Non profit
organization
 Main focus in medical
research
 Have worked on other
devices such as :
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▪ Cochlear implant (hearing
impaired)
▪ Retinal prosthesis (vision)
▪ Fully implantable glucose
sensor (diabetes)
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Uses FES (Funcional
Electrical Stimulation)
FM device located in
motor cortex sends
messages in real time
down to the relevant
muscles
Once the message is
received the
microstimulator sends
out an electrical impulse
triggering muscle
movement
PREVIOUS
NOW/ NEAR FUTURE
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~ 750,000 people suffer a stroke every year
~11,000 suffer a spinal cord injury
~500,000 live with cerebral palsy
~270,000 with MS
~5.3 mill with after affects of traumatic brain
injury
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Small and can be
imbedded directly in the
affected muscle tissues
Doesn’t just “fix” the
problem – it helps
reteach the brain how to
use the affected area
Can remain safely in the
body for up to 80 years
PAST
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Surgical procedure
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In operating room
PRESENT
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BION implantation
tool(BIT)
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Outpatient office
procedure
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No surgical tools needed
Consists of long
cannula(10 cm)
 Cannula made of
Vectra B130-liquid
crystal polymer, 30%
glass reinforced
 Cannula has 2
conduction holes at
end of probe
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Microstimulators that
are temperature and
pressure sensitive and
also respond to touch
 Possibly applying them
to next generation
prosthetics
 Application to lower
extremities
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src="http://player.vimeo.com/
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allowFullScreen></iframe><p
><a
href="http://vimeo.com/2417
9538">2006</a> from <a
href="http://vimeo.com/user6
522156">Ray Bauer</a> on <a
href="http://vimeo.com">Vim
eo</a>.</p>
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Alfred Mann Foundation. 2011. Web. 29 Sept. 2011. <http://aemf.org/>.
Burridge, Jane. "A Preliminary Clinical Study Using RF BION® 1 Microstimulators to Facilitate
Upper Limb Function in Hemiplegi." Advances in Clinical Neuroscience and Rehabilitation 4.2
(2004): 26-27. Advances in Clinical Neuroscience and Rehabilitation. ACNR. Web. 29 Sept. 2011.
<http://www.acnr.co.uk/pdfs/volume4issue2/v4i2rehab.pdf>.
Kaplan, Hilton M., and Gerald E. Loeb. "Design and Fabrication of an Injection Tool for
Neuromuscular Microstimulators." Annals of Biomedical Engineering 37.9 (2009): 1866+.
Biomedical Engineeering Society. Biomedical Engineeering Society, 24 June 2009. Web. 29 Sept.
2011. <http://www.springerlink.com/content/u6v57p33l1532288/fulltext.pdf>.
Lewis, Simon. "Don't Take Consciousness for Granted." Speech. Ted Partner Series. 29 Sept. 2011.
TED Talks. July 2011. Web. 29 Sept. 2011.
<http://www.ted.com/talks/lang/eng/simon_lewis_don_t_take_consciousness_for_granted.html
>.
Hankin, David. “Implantable Microstimulator System: Artificial Nervous System” Annual
Conference. Presentation slides from 14 June 2008. Web. 29 Sept. 2011.
<http://www.neurotechnetwork.org/pdf/FutureDevelpmt_Microstimulator.pdf>. USED WITH
PERMISSION OF THE ALFRED E MANN FOUNDATION
Taylor, Paul. "The Use of Electrical Stimulation for Correction of Dropped Foot in Subjects with
Upper Motor Neurone Lesions." National Clinical FES Centre. Web. 30 Sept. 2011.
<http://www.salisburyfes.com/dropfoot.htm>.