Medical Device Accessory CAD Modification & 3D Printing

I'm in need of a skilled CAD designer with experience in medical devices to modify my existing CAD file for a medical device accessory that I have prototype on. This accessory is intended to more efficiently deliver oxygen.

The modifications will involve:
- Changing a fixed part to be interchangeable
- A few adjustments involving standard shelf items

The ideal freelancer for this project should have a strong background in CAD design, preferably within the medical field. Experience with 3D printing is also essential as the modified design will need to be printed. I require a professional who can pay meticulous attention to detail and deliver high-quality work.

Key requirements:
- CAD design
- Medical device design experience
- 3D printing knowledge
- Detail-oriented

The modifications will involve:
- Changing a part to be interchangeable
- A few adjustments involving standard shelf items

The interchangeable part will need to have the existing size plus a larger option, and the connection mechanism will be a twist-off case rather than a permanent one.

You will need to sign a CA prior to starting.