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Graduated bowman probe

Develop a graduated measurement probe that will allow for the precise clearance of a nasolacrimal duct obstruction during ophthalmological surgery.

Project Overview

Bowman probes are the standard instrument used in interrogation of the nasolacrimal (tear duct) system in Ophthalmology. They are available in various sizes and provide tactile feedback to the surgeon when probing the canalicular/nasolacrimal system, allowing them to assess for strictures, discontinuities, obstruction, or other abnormality within its lumen. Probing is typically performed prior to the passage of implants such as nasolacrimal stents (eg. Crawford, Lacriflow, Nunchucku, Monoka), to confirm patency of the nasolacrimal system. Available probes on the market do not have any markings on them which may allow the surgeon to make measurements to points within the canalicular/nasolacrimal lumen (eg. a stricture at 30 mm distal to the punctum), which can be helpful in correlating with imaging findings, or for accurate clinical documentation and therefore inform management of nasolacrimal pathologies. We propose the development of such a stent with inscribed bands corresponding to millimeter markings which may be referenced during canalicular or nasolacrimal probing.

Project Status

To start our week, the team obtained finished prototypes from Hassan, Professor Pfefferkorn’s graduate student. The team is now focusing on testing protocols, in order to quantitatively and qualitatively assess our graduated Bowman’s Probe prototype. The team is individually covering different testing protocols, and plan to be ready with data and proof of concept by Friday, April 24th for poster presentations. The team also has plans to meet with Dr. Law for wet sample & cadaveric testing to survey the accuracy of the prototypes.

Team Picture

Graduated Bowman Probe Team Members: Caleb White (Left), Neel Srinivasan (Middle-Left), Caden Robinson (Middle-Right), Cole Miller (Right)
Graduated Bowman Probe Team Members: Caleb White (Left), Neel Srinivasan (Middle-Left), Caden Robinson (Middle-Right), Cole Miller (Right)

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Progress Reports

Contact Information

Team Members

Advisor and Client

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