Student Work

Mirror mechanism design with Encapsulation for Ultrasound-guided PCNL access

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Kidney stones, also known as calculi, are mineral deposits that form in the renal calyces and pelvis or attach to the renal papillae. It is the most common disease of the urinary tract, with a high rate of recurrence in patients afflicted with the disease. The prevalence of this disease along with recurrence rates is increasing, affecting nearly 12% of the world’s population throughout their lives[1]. Percutaneous nephrolithotomy (PCNL) is regarded as the preferred treatment for medical professionals to remove or address renal calculi[2], [3]. While the procedure is incredibly safe and observes widespread use without difficulty, it presents a range of risks to the patient and requires a high level of training, preparation, and resources due to its nature being an invasive procedure, with the procedure taking up to three hours per patient. The challenges presented to the surgeon include the perfecting the alignment of the ultrasound probe, the needle and patient’s target region. The purpose of this study is to develop a cheap, intuitive, and safe medical device that aims to easily guide the surgeon towards the needle insertion path and thus cutting the amount of time and resources required to begin the procedure itself. The proposed device utilizes a mirror-mechanism that is situated in a locally encapsulated housing, allowing for the needle to be inserted in the same plane as the probe without compromising image quality or safety. While previous work has been conducted in the same study, this project aims to address the fundamental obstacles encountered by previous contributors and provide a simplified, real alternative to current solutions offered on the medical device market.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
Creator
Publisher
Identifier
  • E-project-061722-102007
  • 70146
Keyword
Advisor
Year
  • 2022
Sponsor
Date created
  • 2022-06-17
Resource type
Major
Source
  • E-project-061722-102007
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Last modified
  • 2022-12-19

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