Your first 510(k), step by step
Most medical devices reach the US market through the 510(k) pathway. The premise is simple: show FDA your device is substantially equivalent to one already legally on the market (a "predicate"), and you can market yours too. The execution is where first-time founders lose months. Here's the sequence that works.
Step 1: Find your product code
Everything starts in FDA's Product Classification database. Search for devices like yours and note the three-letter product code, device class, and regulation number. The classification record tells you three critical things: whether your device type is Class I, II, or III; whether it's exempt from 510(k) entirely (many Class I and some Class II types are); and which FDA review branch owns it.
If you can't find a code that fits your intended use, stop. You may be looking at a De Novo, not a 510(k). Run our Pathway Finder to sanity-check.
Step 2: Build your predicate chain
Search the 510(k) database under your product code and by competitor names. You're looking for a predicate with the same intended use and similar technological characteristics. Read the actual 510(k) summaries; they tell you what testing the predicate ran, which is a preview of what FDA will expect from you.
Also check MAUDE for your predicate's adverse events. Known failure modes of your predicate become required discussion points in your risk analysis, and choosing a predicate with a troubled history can invite extra scrutiny.
Step 3: Pull the device-specific guidance and standards
Search FDA guidance documents for your device type. Many product codes have a guidance that literally lists the testing FDA expects. Then check the Recognized Consensus Standards database and cite the versions FDA recognizes, not whatever is newest. Typical buckets: biocompatibility (ISO 10993), electrical safety and EMC (IEC 60601), sterilization and shelf life, software documentation (IEC 62304), and bench performance against your predicate.
Step 4: Consider a Pre-Sub (Q-Submission)
If anything is ambiguous (predicate choice, testing strategy, whether clinical data is needed), request a free Pre-Submission meeting. You'll get written FDA feedback in roughly 70-75 days. That feels slow until you compare it with an Additional Information request that stops your review clock for months after you've already submitted.
Step 5: Run the testing
Execute your test plan with accredited labs. Get quotes early, because biocompatibility and EMC labs book out weeks to months. Budget realistically: bench and lab testing for a moderate-complexity Class II device commonly runs from tens of thousands into the low hundreds of thousands of dollars, and it's usually the longest single stretch of the whole process.
Step 6: Assemble and submit with eSTAR
FDA's eSTAR template structures the entire submission and validates completeness before you send it. You'll also pay the Medical Device User Fee. Small businesses (under $100M revenue) qualify for a substantially reduced rate, so apply for Small Business Designation well before submitting.
Step 7: Survive the review
FDA's goal is a decision within 90 review days, but the clock stops when they send questions. A first-time submitter should plan on six to nine months from submission to clearance, and treat an Additional Information (AI) request as normal, not a crisis. Most 510(k)s get one. Respond completely and on time; you get 180 days before the submission is withdrawn.
What it costs, roughly
As a planning envelope: user fee (a few thousand dollars with small business designation), testing (often the biggest line), regulatory consulting if you use it, plus your quality system. All-in, first 510(k)s commonly land between $50K and $300K+ depending on device complexity, and 12 to 18 months from serious start to clearance letter. And remember: clearance lets you sell, but reimbursement determines whether anyone buys.