Cystoscope
This project's goal was to create a patient friendly and low cost cystoscope manufacturable through injection molding allowing procedures to minimize anestesia risk by keeping the patient awake.
Date: Fall 2020
Institution: Duke University
Coruse: Advanced Manufacturing and Prototyping
Skills: Design for Injection Molding, FEA Analysis, Photoshop, 3D Modeling (Fusion360), Animation, Rendering, LBM Estimation
Interactive 3D Model
Left Click to Rotate | Scroll to Zoom | Right Click to Pan
Cystoscopy is a medical procedure that allows doctors to inspect and operate the inside of the bladder. A rigid cystoscope is the instrument used for the procedure in most cases.
Rigid Cystoscopes Include:
- A camera component
- An electrical connection system
- A rigid sheath component
- A in/out water flow control system and provision connection
How Available Rigid Cystoscopes Look Like:
Female Procedure Overview:
Male Procedure Overview:
PART 1: Widget — Photon Engine
A 3D printed widget and a caliper were mailed to us to first, make an sketch to scale. The drawings were made in 3rd angle projection (ASME).
Technical Sketch:
Technical Drawing:
Later to be modeled in Autodesk Fusion360, and redesigned to fit and be secured inside a cystoscope that we would also need to design.
Widget Rendered Animation:
Widget Mock Up:
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Redesign of Widget For Injection Molding:
PART 2: Cystoscope Design
Requirements:
- Must accommodate securely, mount and protect the widget
- Must provide an in/out water connection
- Must provide provision to control water in/out flow
- Must accommodate 24F sheath 20 cm in length
- Must suit left or right handed use
- Must accommodate a 3 pole electrical connector
- Must be manufacturable through injection molding
Moodboard:
“Non-scary cystoscope that would be used while the patient is awake”
Inspiration Sketches:
Technical Drawings:
Injection Molding Features Close Up:
Render of Final Model:
FEA Analysis:
3D Printing of Prototype:
Physical Prototype: