FEBPM Device - Electrical, Computer & Biomedical Engineering


Preston Steele

BME 281

 The brains ability to actively rewire itself in response to external stimuli

 Creation of BION microstimulator based on this

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

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 :

▪ Cochlear implant (hearing impaired)

▪ Retinal prosthesis (vision)

▪ Fully implantable glucose sensor (diabetes)

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


~ 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

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


 Surgical procedure

 In operating room


 BION implantation tool(BIT)

 Outpatient office procedure

 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

Microstimulators that are temperature and pressure sensitive and also respond to touch

Possibly applying them to next generation prosthetics

Application to lower extremities

 <iframe src="http://player.vimeo.com/ video/24179538?title=0&amp; byline=0&amp;portrait=0" width="400" height="300" frameborder="0" webkitAllowFullScreen 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>

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.


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.



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


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.