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2010 Three-in-Five Competition

Tuesday, April 13,10:30-12:00
Ballroom C & D, The Radisson Hotel


"An Articulating Tool for Endoscopic Screw Delivery"

Presented by Joseph Petrzelka, Massachusetts Institute of Technology

This paper describes the development of an articulating endoscopic screw driver that can be used to place screws in osteosynthetic plates during thoracoscopic surgery. The device is small enough to be used with a 12 mm trocar sleeve and transmits sufficient torque to fully secure bone screws. The articulating joint enables correct screw alignment at obtuse angles, up to 60 from the tool axis. A novel articulating joint is presented, wherein a flexible shaft both transmits torque and actuates the joint; antagonist force is provided by a super-elastic spring. Screws are secured against the driver blade during insertion and with a retention mechanism that can passively release the screw when it has been securely placed in the bone. The prototype has been fitted with a blade compatible with 2.0 and 2.3 mm self-drilling screws, though a different driver blade or drill bit can easily be attached. Efficacy of the tool is demonstrated by securing an osteosynthetic plate to a rib in a mock surgical setup. This tool enables minimally invasive, thoracoscopic rib fixation.


"Design of an Endoscope Lens Shielding Device for Use in Laparoscopic Procedures"

Presented by Sterling Anderson, Massachusetts Institute of Technology

In recent years, laparoscopic surgical procedures have revolutionized many gynecological and abdominal procedures, leading to dramatic reductions in recovery time and scarring for the patient. While techniques and instruments for performing laparoscopic surgery have improved over the years, loss of vision through the endoscopic lens caused by fog, liquid, and solid debris common to laparoscopic procedures remains a significant problem. In this paper, a shielding mechanism that maintains visibility through the laparoscope by removing debris from the distal end of the lens is presented. This device provides an inexpensive and convenient alternative to the current practice of removing, cleaning, and re-inserting the laparoscope during surgical procedures. This device is shown in multiple trials to repeatably remove debris from the distal tip of the lens, thereby restoring vision for the surgeon without requiring removal or reinsertion of the endoscope.


"Adult Male Circumcision Tool For Use In Traditional Ceremonies"

Presented by Thomas Van Wingen, Mechanical Engineering Department, University of Michigan

Public health officials are currently supporting adult male circumcision as a public health policy to minimize the transmission of HIV during intercourse. Estimates indicate that more than 3 million lives could be saved in sub-Saharan Africa alone if the procedure becomes widely used. Complications including infection and accidental cutting/amputation of the glans during traditional circumcision ceremonies can lead to permanent injury or death. A low cost, adjustable (one-size-fits-most), culturally appropriate adult male circumcision tool was designed for use in traditional circumcision ceremonies. A surgical procedure for using the device has also been defined, which can be performed in either a clinical or non-clinical setting.


Panel Judges:

Sarah Audet - Medtronic, Inc.
Sarah has a PhD in Electrical Engineering and an MBA and works as the Director, Technology Planning in the Cardiac Rhythm Disease Management’s New Therapies and Diagnostics group. Sarah is also on the Board of Directors for Starbase Minnesota.

John J. Alexander, Business Development Advisors / Twin Cities Angels
Founder & Chairman Twin Cities Angels™. Founder & President Business Development Advisors. Previously: CEO, Chameleon Scientific; Vice President Corporate Development, St. Jude Medical; Director Business Development, Baxter Diagnostics; M&A, WRGrace; GEVenture Capital; Reynolds Metals. MBA: University of Virginia; BS ChemicalEngineering Carnegie-Mellon.

Josh Baltzell, Split Rock Partners
Josh Baltzell is a Managing Director at Split Rock Partners. He has been involved in virtually all aspects of medical device innovation ranging from early product development to the acquisition and sale of mature organizations. Mr. Baltzell's experience prior to Split Rock Partners includes positions at St. Paul Venture Capital, Piper Jaffray and Boston Scientific.

Buzz Benson - Sightline Partners
Buzz Benson is a Managing Director of SightLine Partners LLC, a venture capital firm that invests in emerging growth medical technology companies.  Mr. Benson also serves as a director of several private companies.  

Joe Biller - Sightline Partners
Joe Biller is an Associate at SightLine Partners LLC, a venture capital firm that invests in emerging growth medical technology companies. Joe is a graduate from the University of Wisconsin at Eau Claire and holds the Chartered Financial Analyst designation (CFA).

David Boudreault - Stanford Biodesign, UCSF General Surgeon
David is a general surgery resident at UCSF East Bay and finishing his second year at the Biodesign program at Stanford.  His focus is Emergency Medical Services and Stroke.  He is also the consulting CMO for the latest start-up from The Foundry in Menlo Park.

Andrew Cragg, Intersect Partners, LLC
Dr. Cragg is a member of the Minneapolis Heart Institute where he practices Vascular Intervention. In addition, he is a Managing Partner at Intersect Partners, a medical technology incubator.

Tom Lee, Med City News

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