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OCT Probe Mount

Repo

Model


Project objective: Design and manufacture a high-precision fixture for an OCT (Optical Coherence Tomography) probe system used with a Zeiss microscope in a dual-sensing array configuration. The fixture must accommodate two probes: one directed orthogonally at the observed target (the eye), and another redirected via an optical element (e.g., mirror or lens) to intersect the same target region. This setup is intended for laparoscopic ophthalmic procedures, requiring micron-level alignment accuracy, mechanical stability, and compatibility with existing surgical and imaging systems.

Background

The OCT informs axial depth (z), whereas the Zeiss microscope informs laterial (x,y) positioning.

The mechanical Remote Center of Motion (RCM) is an invisible pivot point that must be perfectly aligned with the surgical incision to prevent tearing the tissue.

OCT Holder

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Component Description
Thorlabs Telesto II (Model No. 1060LR) Objective Lens: Thorlabs LSM04BB Light Source: Broadband superluminescent diode with a central wavelength of 1060 nm. Lens Specifications: A focal length of 54 mm, a lateral resolution of 25 μm, and a 10 × 10 mm field of view. Imaging Capabilities: An axial resolution of 9.18 μm and an imaging depth of 9.4 mm in air.
Maxon - DC Motor - Gearhead Motor w/Encoder - Type # 47.022.022-00.19-189  
LAUNCHXL-F28379D F28379D LaunchPad™ development kit for C4000™ Delfino™ MCU
Ball Bearing 20 mm Shaft Diameter  

Slider rail

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FPGA MATLAB Motor Control

Orientation configuration

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Static Calculations

Design for Manufacturing

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Zeiss Fixture

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Component Description
Zeiss PENTERO-800S Microscope
Lens  
Magnets  

Build Log

10-17-24: Test print

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8-28-24:

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8-26-24:

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8-25-24:

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8-14-24:

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8-9-24:

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7-30-24:

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7-9-24:

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References

Zeiss Holder

OCT Holder