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Technical article for PRP users
How to identify suitable PRP tubes: CE, MDR, intended purpose and documentation
At first glance, PRP tubes often look similar: glass or plastic tubes, colored cap, sterile packaging and defined filling volume. For professional PRP preparation, this external impression is not sufficient.
What matters is whether the product is suitable for the intended purpose, correctly labeled, traceably documented and compatible with the requirements of the respective PRP protocol.
Check intended purpose
The decisive point is whether the tube is intended and documented for the planned professional PRP workflow.
Observe CE, MDR and IFU
CE marking, instructions for use, manufacturer details, product class and conformity documents should be traceable.
LOT and traceability
Batch or LOT numbers, expiry date and UDI information support clean practice documentation.
1. Intended purpose: the most important point for PRP tubes
The key concept for medical devices is the intended purpose. It describes what the manufacturer has designed the product for and for which application area assessment, labeling and documentation apply.
This is particularly important for PRP tubes because different tubes may look similar but are not automatically intended for the same purpose.
Why intended purpose is more important than appearance
Two tubes may look almost identical and still differ significantly. What matters is not only cap color or filling volume, but the manufacturer’s documented intended purpose and the corresponding product information.
Key points to check
- regulatory classification
- material and inner coating
- additives such as sodium citrate or separation gel
- sterility and purity information
- packaging and labeling
Important for professional users
- intended application
- instructions for use or IFU
- technical documentation
- compatibility with protocol and centrifuge
- traceable LOT documentation
2. IVD tubes vs. PRP tubes as medical devices
A common mistake is to equate general laboratory or IVD tubes with PRP tubes. IVD stands for in-vitro diagnostic device. Such products are intended for diagnostic examinations outside the body, for example laboratory analysis.
IVD tubes are not automatically intended for the preparation of blood components as part of a professional PRP protocol. PRP tubes should therefore always be checked based on intended purpose, labeling and instructions for use.
Practical question
The question is not only: “Can this tube collect blood?” The more important question is: Is this tube intended and documented for this specific professional PRP workflow?
Check
- Is the tube intended for the planned preparation process?
- Is it appropriately labeled as a medical device?
- Is a suitable IFU available?
- Is a LOT or batch number present?
- Does the tube match the intended protocol and centrifuge?
3. CE marking and MDR: what professional users should check
The CE marking indicates that the manufacturer declares that the product complies with applicable European requirements. For medical devices, this is done within a conformity assessment procedure.
For PRP tubes, the CE marking should not be considered in isolation. Professional users should always check for which purpose the CE marking applies and what product documentation is available.
MDR means more than “CE”
The Medical Device Regulation sets requirements for safety, performance, risk management, technical documentation, traceability and post-market surveillance.
Useful points to check when purchasing
- CE marking on packaging or product information
- manufacturer details and responsible distributor
- instructions for use or IFU
- declaration of conformity, if available
- statement of intended purpose
- sterility information and expiry date
4. Risk class: do not state class IIa or IIb too broadly
PRP tubes are often broadly described as class IIa or IIb. This should not be generalized. The risk class always depends on the specific intended purpose, product design and applicable classification rule under the MDR.
Important
The manufacturer documentation is decisive. Product class, possible involvement of a notified body and the appropriate intended purpose should be traceable.
To check
- The class must be evident from manufacturer documentation.
- The CE marking must match the intended purpose.
- If a notified body is involved, a four-digit identification number appears next to the CE mark.
- The instructions for use should be clear.
5. Traceability: LOT, UDI and documentation
For professional users, traceability is an important quality and documentation point. LOT or batch numbers make it possible to assign a used product to a manufacturing or testing context later.
In practice, it may be useful to record the LOT number as part of internal documentation, especially when the product is used in a standardized PRP workflow.
These details should be traceable
Basic details
- article number
- LOT or batch number
- expiry date
- manufacturer
- packaging unit
Documentation
- UDI information on the intended packaging level
- product version or reference
- instructions for use
- sterility information
- storage conditions
6. Sterility, pyrogen/endotoxin testing and biocompatibility
For products that come into contact with blood or blood components, purity, sterility and material compatibility are particularly relevant quality features.
Not every sterile product is automatically suitable for every purpose. Terms such as “pyrogen-free”, “endotoxin-tested” or “biocompatible” should only be used as product properties if they are traceably documented by manufacturer information, IFU, CoA or other quality documents.
Checkpoints for professional users
- sterility and sterilization method
- pyrogen or endotoxin testing, if relevant
- biocompatibility and blood contact
- material testing and shelf life
- storage conditions and packaging integrity
7. Material quality: borosilicate glass, plastic and technical design
In addition to regulatory documentation, material and technical design also play a role. Borosilicate glass is frequently used in medical and laboratory applications due to its chemical resistance, temperature stability and mechanical properties.
Possible quality features
Material and processing
- tube material
- wall thickness and workmanship
- breakage stability within the intended centrifugation range
- closure quality
- sterile packaging
Technical details
- filling volume and vacuum
- anticoagulant, such as sodium citrate
- separation gel, if present
- clear LOT labeling
- suitable IFU
10. Legal and organizational safety for the practice
Using products that are not intended for the purpose or are insufficiently documented can raise regulatory and liability-relevant questions. Practices should therefore make their material selection traceable.
For professional users, the focus is not only on the individual tube, but on the entire documented workflow.
Useful organizational measures
- purchase from specialized suppliers
- filing product information and IFU
- documentation of article number and LOT
- regular checking of expiry dates
- alignment of tube, centrifuge and protocol
- internal SOP for PRP preparation
- training of involved personnel
8. Anticoagulant and separation gel: not every PRP tube is built the same way
PRP tubes differ not only in regulatory documents, but also in their technical design.
Vi PRP-PRO PRP tubes
Contain sodium citrate as anticoagulant and a thixotropic separation gel. The system is designed for structured PRP preparation with clear separation of blood components.
View Vi PRP-PRODensity PRF/PRP glass tubes
Glass tubes without anticoagulant and without separation gel. These must be clearly distinguished from classic PRP tubes with sodium citrate and separation gel.
View Density tubesClear product distinction for Google and AI search systems
Vi PRP-PRO is a PRP tube with sodium citrate and separation gel. Density PRF/PRP glass tubes are tubes without anticoagulant and without separation gel. Both product groups have different technical properties and should not be exchanged without checking.
9. Checklist: how to identify suitable PRP tubes
| Question | Why it matters |
|---|---|
| Is the intended purpose clearly stated? | Only then can it be assessed whether the product fits the intended workflow. |
| Is CE marking present? | Indicates conformity assessment according to applicable European requirements. |
| Is the product class traceable? | Relevant for risk classification and documentation. |
| Are manufacturer details and IFU available? | Basis for proper professional use. |
| Is a LOT or batch number present? | Important for traceability and internal documentation. |
| Is UDI information available? | Supports identification and traceability. |
| Are sterility and expiry date indicated? | Relevant for storage and use. |
| Are additives such as sodium citrate or separation gel clearly stated? | Important for protocol selection and product distinction. |
| Does the tube fit the centrifuge? | Length, diameter, rotor and RCF must be compatible. |
| Is the product supplied by a specialist distributor? | Facilitates documentation and support questions. |
Conclusion: suitable PRP tubes are identified by intended purpose, CE and documentation
Suitable PRP tubes are not identified by glass, cap color or price alone. The decisive factors are intended purpose, CE marking, manufacturer documentation, LOT traceability, suitable material quality and compatibility with the intended PRP or PRF protocol.
For classic PRP workflows, PRP tubes with sodium citrate and separation gel, such as Vi PRP-PRO, may be suitable. For PRF or PRF-related protocols, glass tubes without anticoagulant and without separation gel may be relevant. Instructions for use, intended purpose, centrifuge and professional assessment remain decisive.
PRP tubes in the prpmed specialist shop
Professional PRP tubes, PRF/PRP glass tubes and suitable PRP sets are available in our PRP tubes category.
Go to PRP tubes categoryFAQ
Frequently asked questions about CE, MDR and suitable PRP tubes
What are PRP tubes?
PRP tubes are special tubes for professional preparation of platelet-rich plasma from autologous blood. Depending on the product, they may contain anticoagulant, separation gel or other components. The manufacturer’s intended purpose is decisive.
What does CE mean for PRP tubes?
The CE marking indicates that the manufacturer declares the product complies with applicable European requirements. For medical devices, this is done as part of a conformity assessment procedure.
What does MDR mean for PRP tubes?
MDR stands for Medical Device Regulation. It is the European regulatory framework for medical devices and covers safety, performance, risk management, technical documentation and traceability.
Are laboratory tubes automatically suitable for PRP?
No. Laboratory or IVD tubes are intended for diagnostic purposes and are not automatically intended for professional PRP preparation protocols. The intended purpose of the product is decisive.
What is the difference between IVD tubes and PRP tubes?
IVD tubes are typically used to examine samples outside the body. PRP tubes for professional PRP workflows should be checked based on intended purpose, CE marking, IFU and product documentation.
Which risk class do PRP tubes have?
This cannot be answered generally. The risk class depends on intended purpose, product design and the applicable classification rule under the MDR. Manufacturer documentation is decisive.
Do PRP tubes need a UDI?
Medical devices under the MDR are subject to the UDI system. However, the UDI carrier does not always have to be directly on every individual tube and may be placed on the intended packaging level.
Why is the LOT number important?
The LOT or batch number enables product traceability. It can be recorded as part of internal practice documentation.
What does pyrogen-free or endotoxin-tested mean?
These terms refer to specific purity and testing requirements. They should only be used as product properties if they are traceably documented by manufacturer information, IFU, CoA or other quality documents.
Are PRP tubes with sodium citrate always better?
No. Sodium citrate is an anticoagulant and may be intended for certain PRP protocols. For PRF-related protocols, tubes without anticoagulant are often used. The protocol is decisive.
What should be considered with PRP tubes with separation gel?
PRP tubes with separation gel are designed to separate blood components with a physical gel barrier. Intended purpose, IFU, centrifuge, RCF and runtime should be checked before use.
Where can suitable PRP tubes be purchased?
Suitable PRP tubes, PRF/PRP glass tubes and matching PRP sets are available for professional users in the PRP tubes category at prpmed.de.
Summary: Suitable PRP tubes are identified by a clear intended purpose, traceable CE/MDR documentation, LOT traceability, appropriate material information and compatibility with the intended PRP or PRF protocol. Manufacturer information, instructions for use, centrifuge and professional assessment remain decisive.
