Quick answer. Product liability insurance (PLI) on a medical accessory covers claims that the accessory, alleged to be defective, caused bodily injury or property damage — typically including the supplier's legal defence costs and any settlement or judgment, up to the policy limit. A $5 million limit is a meaningful figure for a patient-monitoring accessory supplier. But the number alone does not protect your hospital. What protects you is being named as an Additional Insured, and understanding what the policy covers, what it excludes, and how it sits behind — not instead of — a real quality system.
Why risk managers care about this more than any other spec
A clinician evaluates an SpO2 sensor on accuracy. A BMET evaluates it on connector fit and durability. A risk manager evaluates it on one question: if this accessory is ever implicated in a patient-safety event, who is financially responsible, and is that party actually able to pay? That is what product liability insurance answers. For compatible (non-OEM) accessories specifically, this is often the deciding factor — because it is a concrete, verifiable fact rather than a marketing adjective.
What product liability insurance is
PLI covers a manufacturer's or supplier's legal liability for harm allegedly caused by a defective product. In the medical-accessory context, "harm" generally means bodily injury or property damage that a claim attributes to the accessory. A typical PLI policy responds to claims in three forms of alleged defect:
- Manufacturing defect — the unit was made wrong, departing from its own design or specification.
- Design defect — the product's design itself is alleged to be unsafe.
- Failure to warn / instruct — the labelling or instructions for use are alleged to be inadequate.
When a covered claim is made, the policy generally responds in two ways: it funds the legal defence (often a large cost on its own), and it funds any resulting settlement or judgment, up to the policy limit.
What "$5 million" actually refers to
The figure is the policy limit — the maximum the insurer will pay. But "limit" usually has two components:
| Limit type | What it caps | Why it matters |
|---|---|---|
| Per-occurrence limit | The maximum for any single claim or occurrence | Sets the ceiling on one event — the figure most relevant to a single patient-safety claim |
| Aggregate limit | The maximum the policy will pay in total across the policy period | Can be eroded by multiple claims in one period; defence costs draw against it too |
When a supplier states "$5 million product liability insurance," ask whether that is the per-occurrence figure, the aggregate, or both. A proper Certificate of Insurance shows both.
A $5 million limit is a substantial and reassuring figure for a patient-monitoring accessory manufacturer; it signals a supplier carrying real, professionally underwritten coverage rather than a token policy.
The part that actually protects your hospital: Additional Insured
This is the single most important point in this guide. A supplier having a $5 million policy protects the supplier. For that coverage to extend protection to your hospital, your facility generally needs to be named as an Additional Insured on the supplier's policy. An Additional Insured endorsement extends certain protections of the supplier's policy to the named hospital — so that, for a covered claim arising from the supplier's product, the hospital can benefit from the supplier's coverage.
Practical steps:
- Request a Certificate of Insurance (COI) that names your facility as Additional Insured.
- Have your own risk / legal team review the endorsement language — Additional Insured wording varies, and the specifics matter.
- Confirm the COI shows the insurer, policy number, coverage type, limits and policy period.
MedLinket can provide a Certificate of Insurance with an Additional Insured endorsement for hospital customers on request — see MedLinket FDA, ISO 13485 and Product Liability Insurance Explained.
What PLI does NOT cover — honest limits
It does not cover harm the accessory did not cause
PLI responds to claims that a defective product caused harm. It is not a blanket guarantee covering any adverse event near the device. Causation matters.
It does not cover misuse outside intended use
If an accessory is used outside its cleared intended use — wrong patient population, wrong application site, off-label use — coverage for a resulting claim can be affected.
It has exclusions, and the policy governs
Every policy has exclusions and conditions. A COI is a one-page summary; the actual policy is the governing document. For any high-stakes question, the policy wording — read by your counsel — is what controls.
It is not a substitute for a quality system
This is the most important limit. Insurance is the backstop behind a quality system, not a replacement for it. A supplier that leans on "we're insured" while having no audited QMS, no per-unit QC and no FDA verification has it backwards.
The order of operations is: a cleared device, made under ISO 13485, performance-validated — and then insured as the final backstop. Insurance is Layer 4 of supplier evaluation, never Layer 1 — see the medical accessory supplier evaluation checklist.
It does not transfer the hospital's clinical responsibility
The hospital remains responsible for selecting appropriate devices, validating them and using them correctly. PLI addresses product-defect liability; it does not absorb clinical responsibility.
How a claim actually flows (simplified)
- An adverse event occurs and a claim alleges an accessory defect contributed.
- The supplier notifies its PLI insurer.
- If your hospital is an Additional Insured, your facility may also look to that policy for the covered claim.
- The insurer funds the legal defence and investigates causation.
- If the claim is covered and resolved, the insurer funds the settlement or judgment up to the policy limit.
- Defence costs, settlement and judgment all draw against the limits — which is why the limit size and per-occurrence vs aggregate distinction matters.
A risk manager's quick checklist
- A Certificate of Insurance exists — with insurer, policy number, coverage type, limits and policy period
- Limit is meaningful — a substantial limit (e.g. $5 million); know if it is per-occurrence, aggregate, or both
- Additional Insured available — supplier will name your facility; your counsel reviews the endorsement language
- Coverage period is current — the policy is in force, with renewal continuity
- Insurance sits behind a QMS — supplier also has FDA verification and current ISO 13485
- The full policy is reviewable by your counsel for high-stakes questions
A supplier that satisfies every row is a genuine risk-transfer partner. A supplier that cannot produce a COI, or treats insurance as a substitute for quality, is not.
Frequently asked questions
Does a supplier's $5 million policy automatically protect my hospital?
No — by itself it protects the supplier. For that coverage to extend to your hospital, your facility generally needs to be named as an Additional Insured on the supplier's policy. The Additional Insured endorsement is what lets your hospital benefit from the supplier's coverage for a covered claim arising from the supplier's product. Request a Certificate of Insurance naming your facility and have your counsel review the endorsement language.
What is the difference between a per-occurrence limit and an aggregate limit?
The per-occurrence limit is the maximum the insurer will pay for any single claim or occurrence. The aggregate limit is the maximum across the entire policy period, and it can be eroded by multiple claims — defence costs draw against it too. When a supplier states "$5 million," ask whether that is the per-occurrence figure, the aggregate, or both; a proper Certificate of Insurance shows both.
Does product liability insurance replace a quality system?
No. Insurance is the backstop behind a quality system, not a replacement for it. A supplier that leans on "we're insured" while having no audited QMS, no per-unit QC and no FDA verification has it backwards. The correct order is a cleared device, made under ISO 13485, performance-validated — and then insured as the final backstop. Insurance is the last layer of supplier evaluation, never the first.
What should a Certificate of Insurance show?
A proper Certificate of Insurance shows the insurer, policy number, coverage type, the limits (ideally both per-occurrence and aggregate) and the policy period, and confirms the policy is currently in force. For hospital protection it should be able to name your facility as an Additional Insured. The COI is a one-page summary, however — for high-stakes questions the full policy wording, read by your counsel, governs.
About MedLinket. Founded 2004 in Shenzhen. NEEQ-listed (stock code 833505). Over 20 years specialising in patient-monitoring accessories. FDA 510(k), CE, MHRA, MDSAP, ISO 13485:2016 (TÜV), ISO 9001 certified. Class 100,000 cleanroom. Serving 2,000+ hospitals across 117 countries and regions. Product liability insurance carried with cover up to USD 5 million; hospital customers may request a certificate of insurance with Additional Insured endorsement.
