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medical device UDI requirements

Analyzed across ChatGPT, Perplexity & Google AIO
Analyzed 11/15/2025

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Brand Performance Across AI Platforms
All 7 brands referenced across AI platforms for this prompt
FDA
21
7
Sentiment:
Score:95
GUDID
7
0
Sentiment:
Score:65
Greenlight Guru
0
1
Sentiment:
Score:55
4Emergo by UL
0
1
Sentiment:
Score:55
5Rimsys
0
1
Sentiment:
Score:55
Referenced Domains Analysis
All 14 domains referenced across AI platforms for this prompt
ChatGPT
Perplexity
Google AIO
#1fda.gov faviconfda.gov
ChatGPT:3
Perplexity:2
Google AIO:2
7
#2health.ec.europa.eu faviconhealth.ec.europa.eu
ChatGPT:0
Perplexity:2
Google AIO:1
3
#3ecfr.gov faviconecfr.gov
ChatGPT:0
Perplexity:1
Google AIO:1
2
#4federalregister.gov faviconfederalregister.gov
ChatGPT:0
Perplexity:1
Google AIO:1
2
#5gs1us.org favicongs1us.org
ChatGPT:0
Perplexity:0
Google AIO:1
1

AI Search Engine Responses

Compare how different AI search engines respond to this query

ChatGPT

3515 Characters

BRAND (8)

精选行业Query
FDA
Greenlight Guru
Emergo by UL
GUDID
Rimsys
GS1 US
Zebra

SUMMARY

Provides a structured educational overview of UDI requirements, focusing on the two key components: Device Identifier (UDI-DI) and Production Identifier (UDI-PI). Explains the mandatory and conditional aspects of each component with clear definitions and purposes for device traceability and safety enhancement.

REFERENCES (3)

https://www.fda.gov/medical-devices/unique-device-identification-system-udi-system/udi-basics?utm_source=openai
https://www.fda.gov/medical-devices/unique-device-identification-system-udi-system/udi-compliance-policies-and-udi-rule-compliance-dates?utm_source=openai
https://www.fda.gov/medical-devices/unique-device-identification-system-udi-system/udi-exceptions-and-alternatives?utm_source=openai

Perplexity

2097 Characters

BRAND (8)

精选行业Query
FDA
Greenlight Guru
Emergo by UL
GUDID
Rimsys
GS1 US
Zebra

SUMMARY

Delivers the most comprehensive response covering UDI requirements with specific details about FDA-accredited issuing agencies, GUDID database submission requirements, and both static and dynamic identifier components. Includes practical implementation details and regulatory context.

REFERENCES (12)

https://accessgudid.nlm.nih.gov
https://english.nmpa.gov.cn/2022-06/30/c_785636.htm
https://health.ec.europa.eu/document/download/add107c5-0ca8-45d3-b049-63bb84c4ce31_en
https://health.ec.europa.eu/medical-devices-topics-interest/unique-device-identifier-udi_en
https://www.ecfr.gov/current/title-21/chapter-I/subchapter-H/part-801/subpart-B
https://www.emergobyul.com/services/medical-device-udi-unique-device-identification-consulting-and-training
https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system
https://www.fda.gov/medical-devices/unique-device-identification-system-udi-system/udi-basics
https://www.federalregister.gov/documents/2013/09/24/2013-23059/unique-device-identification-system
https://www.greenlight.guru/blog/udi-medical-devices
https://www.rimsys.io/blog/quick-reference-guide-global-udi-requirements-and-timelines
https://www.zebra.com/us/en/resource-library/faq/what-Is-unique-device-identification-udi.html

Google AIO

433 Characters

BRAND (8)

精选行业Query
FDA
Greenlight Guru
Emergo by UL
GUDID
Rimsys
GS1 US
Zebra

SUMMARY

Offers a concise technical summary highlighting core UDI requirements including labeling formats, database submission to GUDID, and direct device marking requirements. Mentions both human-readable and machine-readable format requirements with structured presentation.

REFERENCES (9)

https://health.ec.europa.eu/medical-devices-topics-interest/unique-device-identifier-udi_en
https://patientguard.com/medical-device-udi-for-beginners/
https://www.ddismart.com/blog/understanding-fda-requirements-for-unique-device-identification-udi-compliance/
https://www.ecfr.gov/current/title-21/chapter-I/subchapter-H/part-801/subpart-B
https://www.fda.gov/media/99084/download
https://www.fda.gov/medical-devices/unique-device-identification-system-udi-system/udi-basics
https://www.federalregister.gov/documents/2013/09/24/2013-23059/unique-device-identification-system
https://www.gs1us.org/industries-and-insights/by-industry/healthcare/standards-in-use/medical-device
https://www.medicaldesignbriefs.com/component/content/article/18758-the-fda-s-udi-rule-is-final-what-s-next

Strategic Insights & Recommendations

Dominant Brand

FDA dominates across platforms as the primary regulatory authority, with GUDID (Global UDI Database) being the second most referenced system.

Platform Gap

Perplexity provides the most detailed regulatory context while Google AIO offers the most structured technical overview, and ChatGPT focuses on educational fundamentals.

Link Opportunity

Perplexity leads with 12 source links providing extensive regulatory documentation, while Google AIO offers 9 links and ChatGPT provides 3 focused references.

Key Takeaways for This Prompt

All platforms consistently identify the two-part UDI structure with Device Identifier and Production Identifier components.

GUDID database submission is universally mentioned as a critical compliance requirement across all platforms.

Perplexity provides the most actionable regulatory details including FDA-accredited issuing agencies information.

Google AIO uniquely emphasizes the dual format requirement for both human-readable and machine-readable UDI presentation.

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