Midwest Interventional SystemsFor Engineers,
By Engineers.

We believe that life changing medical devices can be made in months, not years. We create minimally invasive medical devices, specializing in complex catheter systems. From component technologies like medical tubing extrusions, balloons, and braided or coiled shafts to entire assemblies, we design and manufacture all of it.

Our MissionGet a Quote
10 plus decades of combined catheter manufacturing experience.
Industry Leading Catheter Engineers
like Nina V.
Rapid prototyping experts.


Product development experts.


Medical extrusion component.



Your catheter commercialization partner.


Our MissionAccessible Innovation For All.

It is our mission to provide access to innovation within the minimally invasive device industry with unconditional transparency and quality through empathetic partnerships.

WE AREYour Complex Catheter Partner.

We pride ourselves on our dedication to our customers. When you work with MIS you are adding an extension to your design team. We have worked with 100+ satisfied customers: do you need a manufacturing partner?

Our Quality System

At MIS we believe in quality at every turn. We design, develop, and manufacture devices that impact lives, and we do so with an absolute focus on the quality and safety of each device and component. Our in-house quality experts are here for your questions and what-if's.

The MIS Quality Policy

We are committed to providing the highest quality devices to our customer’s satisfaction, while maintaining compliance with all applicable global regulatory requirements.

ISO 14385:2016 Certified Organization.
ISO 13485:2016 Certified
FDA registered medical device manufacturer.
FDA Registered
E-Quality Management System

Contact Us

Need to get in touch? Drop us a message and we will get back to you

info@midwestint.com(763) 208-0390
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3,500 square feet of Class 7 Cleanroom space.



Sqft. Class 7 Clean Room



Sqft. Facility



Catheter Experts

Frequently Asked Questions

What is mis?

Midwest Interventional Systems (MIS) is a contract design and development and contract manufacturer for minimally invasive based delivery systems. We design, develop, and manufacture custom medical device solutions.

Where is MIS located?

MIS is located in the heart of Medical Alley in Maple Grove, Minnesota.

HOW does MIS develop devices?

At MIS it all starts with an idea. You come to us with your device concept, whether it's a napkin sketch or a product you've already begun to develop. We're ready to help with our decades of experience. Our dedicated quoting team will take a close look at your idea or device, understand your critical design requirements and provide you with a detailed estimate to meet your product milestones. From there, we leverage our phase-based design control process to bring your device to market on a sustainable and scalable platform.

How Do your Design Tools Work?

Getting an estimate for your component or device should be easy and fast. That's why MIS has developed several tools to make the process simpler for you.

Need an extrusion or balloon estimate? Use our online designers to enter your custom specifications and you will receive an email with your design. We'll follow up with an estimate within 24-hours. Click here to design your balloon, or here to design your extrusion.

Do you have a balloon catheter, steerable catheter, or reinforced shaft program you want quoted? We've got you covered. Our Catheter Design Templates are designed to gather all of the information we need to quote your project, allowing for a fast and efficient transfer of knowledge. Just download the form-entry-PDF and email it to info@midwestint.com! Have a different device you need quoted? No problem! You can request a quote here.

Do I need an Nda to work with Mis?

While it is common for both parties to sign an NDA before working together, it is not required. Our standard NDA is straight-forward and protects your information.

DOES MIS Have A quality System?

Yes, MIS does have a quality system! Quality is foundational to who we are as a company, and we pass quality down to every device that we design and manufacture under our roof. Our quality system is certified to ISO 13485:2016 and we thoroughly believe in strict design controls and good manufacturing and documentation policy.

How long does it take to receive a quote?

When you request a quote from us, we get to work immediately. Our quoting team will look at your device and any prints you have included make sure that we have all of the information we need to give you an accurate and detailed estimate. Once we have all of the necessary information, we aim to have a quote in your inbox within 3 business days for complex systems. For simpler projects you can expect a quote even faster, and we typically quote all balloon and extrusion requests within 24 hours!

Who should I reach out to?

Want to talk to one of our experts? For general inquiries reach out to info@midwestint.com.

Who owns the Intellectual Property (IP) of my device?

When you partner with MIS, you retain sole rights to the Intellectual Property of your device unless otherwise agreed upon between both parties. We are here to help you take your device to market and we respect the hard work and investment that you or your company has put into your device.

Does MIS manufacture Medical devices?

Yes! We do all of our medical device and catheter manufacturing right here in Maple Grove, MN. We have a dedicated manufacturing team in place to ensure the success of your device. We have experience in managing low-volume pilot production, as well as high-volume manufacturing.

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