Drugdu.com expert's response:

Moving from R&D to production is essentially a "handoff" — turning laboratory technology into repeatable, controllable, and traceable mass production capability on the factory floor. The process involves a large number of documents, which are organized below by logical flow.

Block 1: Documents That "Define the Product"

This block answers the question: "What exactly are we making, and what standards must it meet?"

First is the Product Technical Requirements, which is the core attachment of the registration certificate. It specifies all performance indicators, allowable tolerances, and test methods. All quality inspection activities on the production side are based on this document.

Next are the Design & Development Input/Output documents, including intended use, functional and performance requirements, safety requirements, and applicable national/industry standards. This is the starting point for all design work.

Then comes the Risk Management Report. In accordance with YY 0316 (ISO 14971), risk analysis, risk evaluation, and risk control must be completed starting from the R&D phase. This report runs through the entire product lifecycle and must be continuously updated during production.

There is also the BOM (Bill of Materials), which breaks the product down to every screw and every cable. Each material item must have technical requirements or acceptance criteria.

If software is involved, a Software Description Document is also needed, including software version number, cybersecurity description, and software verification & validation reports.

If it is an implantable device or one that contacts the human body, a Biocompatibility Evaluation Report is also required.

Block 2: Documents That "Lock Down the Process"

This block answers the question: "How do we make it, step by step, and what counts as acceptable?"

The core is the Process Flowchart and Process Documents, which identify every process step, critical processes, and critical control points (CCPs).

On top of this, Production Work Instructions (SOPs) must be written for every process step — workers simply follow them, with no room for ambiguity.

At the same time, there must be Inspection Procedures/Specifications, clearly stating what is inspected at incoming material, in-process, and final release, what methods are used for each inspection, and what the acceptance criteria are.

There is also the Trial Production Report. Before full-scale mass production, a small-batch trial run must be conducted, recording all problems and solutions, to prove that the process works under actual production conditions.

Block 3: Documents That "Verify Equipment and Environment"

This block answers the question: "What do we use to make it, where do we make it, and is the environment good enough?"

Production equipment must have 3Q Reports: IQ (Installation Qualification) proves the equipment was installed correctly; OQ (Operational Qualification) proves it can run properly; PQ (Performance Qualification) proves it can consistently produce conforming products under actual production conditions.

Tooling and molds must have an inventory list and validation report, proving that mold precision meets requirements.

If there is a cleanroom, a Cleanroom Environment Validation Report is needed (particle count, temperature/humidity, pressure differential, etc.).

If sterilization is involved, a Sterilization Process Validation Report is required, including sterilization process validation and Sterility Assurance Level (SAL) assessment.

Packaging must also have a Packaging Validation Report, proving the product will not be damaged during transportation and storage.

Block 4: Documents That "Build the System"

This block answers the question: "Who manages what, how is it managed, and what happens when something goes wrong?"

This is the GMP quality management system documentation, and it is also the hard threshold for obtaining a production license.

At the top is the Quality Manual, which clearly states the company's quality policy, organizational structure, and departmental responsibilities and authorities.

In the middle layer are the Procedure Documents, covering document control, record control, nonconforming product control, CAPA (Corrective and Preventive Actions), supplier management, traceability management, adverse event monitoring, internal audit, management review, and all other key processes.

At the bottom layer are Records and Forms, including batch production records, batch inspection records, equipment usage records, environmental monitoring records, training records, etc. Every step in daily production must leave a trace.

In addition, there must be Management Regulations, such as personnel training regulations, equipment management regulations, material management regulations, cleanroom management regulations, etc.

The identity proof and education/professional qualification certificates of key personnel (legal representative, enterprise head, management representative, quality head, production head) must also be prepared.

Block 5: Documents That "Secure the Legal Identity"

This block is the administrative application material submitted to the drug administration.

First and foremost is the Medical Device Registration Certificate (with attachments). For Class III devices, the registration certificate must be obtained or the review must be passed first — this is a prerequisite for the production license.

Then there is the Clinical Trial Report or Clinical Evaluation Materials. Class III devices generally require clinical trial data; some can complete clinical evaluation through predicate device comparison.

There is also the Registration Test Report (Type Test Report), issued by a qualified testing institution.

Next is the Medical Device Production License Application Form, along with production site proof (property deed or lease contract + layout plan including cleanroom zoning), a list of main production equipment and inspection instruments, and the quality manual and procedure document index.

Finally, the Design Transfer Report is the formal "receipt" from R&D to production, confirming that all technical documents, processes, equipment, and personnel are in place and mass production can begin.

A Few Things That Are Easily Overlooked But Absolutely Essential

Supplier Audit Reports and Qualified Supplier List — Suppliers of critical materials must be audited; they cannot be changed casually.

Labels and Instructions for Use (final version) — Must be completely consistent with the registration certificate; not a single word can be wrong.

Post-Market Surveillance Plan (PMS Plan) — Class III devices are required by regulation to establish a post-market surveillance system, and this plan must be written before production begins.

The entire R&D-to-production process is, in plain terms, about turning "something that works in the lab" into "something that can be stably manufactured in a factory, with every batch identical and every problem traceable." All documents serve this goal. If any block is missing, you either won't get the production license, or mass production will run into problems.