EVD Kit Lot Traceability: From Receiving to the Bedside

Lot traceability means that every EVD kit can be traced from its manufacturing batch to the hospital and, ideally, to the patient. It works only if lot numbers are recorded at each handover: when the distributor receives stock, when it ships to a hospital, when the hospital stores it and when the kit is used at the bedside.

Most of the time, traceability records sit unused. Their value appears when a manufacturer issues a field safety notice or a hospital investigates a product question. Then the difference between a complete chain and a broken one is the difference between contacting a handful of accounts within hours and searching every shelf in a region. This article sets out what to record at each step for EVD kits and catheters.

Why does lot traceability matter for EVD kits?

An EVD is a critical-care device placed in the brain, and any question about a specific batch must be answered quickly. Traceability allows three things: identifying where every unit of an affected lot is, removing unused units from shelves, and identifying patients who received a unit from that lot so the clinical team can decide whether any follow-up is needed.

Manufacturers working under ISO 13485 maintain traceability of their products to the first point of distribution. Distributors and hospitals carry the chain forward. Without their records, the manufacturer’s traceability stops at the distributor’s door.

What are the links in the traceability chain?

Every link depends on the one before it. If the distributor records lots at receiving but not at dispatch, it knows what it bought but not where it went. If the hospital records the lot in its supply system but not in the patient record, it knows which shelf held the kit but not which patient received it. The chain is only as strong as its weakest recording step, which is why each party should know exactly what the others record.

What should a distributor record?

A distributor’s system should make lot recording automatic rather than optional. Practical requirements include:

• Capture lot and expiry at receiving, ideally by scanning the barcode on the label.
• Store inventory by lot, so that the system knows which lots are in which location.
• Pick by lot and record the lot shipped on every order line.
• Print lot numbers on packing lists and invoices.
• Record lots placed in consignment, by hospital and location.
• Keep records for at least as long as required by your quality procedures and contracts.

When a distributor supplies the EVD-010 Series, the ventricular catheter kit and the lumbar drainage catheter kit, standard and antibiotic-impregnated versions should be tracked as separate items with their own lots. Mixing them in records is a common source of confusion.

Train warehouse staff to treat the lot number as part of the product, not as an optional detail. When a scan fails or a label is hard to read, the item should go to a supervisor rather than be shipped without a recorded lot. Regular spot checks of dispatched orders against the system records help keep the discipline in place.

What should a hospital record?

Hospitals differ in how they record device use, but the goal is the same: a link between the lot and the patient. Common methods include scanning the label at the point of use into the electronic health record or a supply system, attaching a label sticker to the procedure record, or entering the lot manually. For bedside placements in the ICU or emergency department, which happen under time pressure, a simple and fast method is essential. A distributor can help by explaining where the lot information sits on each label and by supporting the hospital’s scanning workflow.

Consignment and bill-only workflows

In consignment programs, the usage report or bill-only purchase order is a natural place to capture the lot. Agree in the consignment contract that every usage report includes the lot number. That single requirement closes the most frequent gap between the distributor’s records and the patient record.

How does UDI help?

Unique Device Identification (UDI) systems give each device a standardized identifier on its label, combining a device identifier with production information such as lot and expiry. In the European Union, UDI is part of the requirements of the Medical Device Regulation. Where labels carry machine-readable identifiers, scanning at receiving, dispatch and point of use reduces manual errors and makes the traceability chain faster and more reliable. Ask the manufacturer what identifiers appear on the labels of the items you stock.

What happens during a field action?

If a manufacturer issues a field safety notice for a lot, the distributor’s records determine the speed of the response. A well-prepared distributor can, within hours:

• Identify every customer who received the affected lot, and in what quantity.
• Quarantine any affected stock in its own warehouse and in consignment locations.
• Notify customers according to the manufacturer’s instructions and the agreed procedure.
• Collect acknowledgments and reconcile quantities returned or destroyed.
• Report progress to the manufacturer until the action is closed.

Hospitals then use their own records to locate stock on their shelves and identify any patients who received units from the lot, so that the clinical team can assess whether follow-up is needed.

How do you test the chain?

A mock recall is the simplest way to find gaps before they matter. Choose a lot that was shipped some months ago and try to account for every unit: in the warehouse, at each customer, in consignment locations and, with a cooperative hospital, at the point of use. Measure how long it takes and where records were missing or inconsistent. Fix the gaps and repeat the exercise periodically.

Include consignment locations in the exercise, since they are where records most often diverge. Share the results with the manufacturer as well: a manufacturer that knows how quickly its distributor can locate stock can plan field actions more realistically, and the distributor gains credibility as a partner who takes quality seriously.

How does DESU support traceability?

DESU manufactures its EVD systems, catheters and shunts in its own cleanrooms in Ankara, Türkiye, under an ISO 13485 quality management system, which includes traceability of each lot from production to dispatch. Distributors working with DESU can agree the traceability and field action procedure at the start of the partnership, so that responsibilities and timelines are clear before they are ever needed.

That agreement typically covers how notices are sent, who contacts hospitals, what records the distributor provides, the expected response times and how returned or quarantined stock is handled. Writing it down once, and reviewing it each year, turns an urgent situation into a rehearsed routine.

Talk to a DESU product specialist

If you are reviewing your traceability procedures for EVD products, DESU’s product specialists can explain label information, lot structure and the field action procedure for your market. Email sales@desu.tr or use the contact page.