Precision medical tubing by Primo

Pre-filled syringes with haemostatic gelatine are an effective solution when internal or external bleedings need to be staunched quickly in the operating theatre – and medical tubing supplied by Primo are fitted to some of the most widely used haemostatic syringes, which are produced by Carmo in Denmark.

Advanced medical equipment made from extruded plastic

Pre-filled syringes with haemostatic gelatine are an effective solution when internal or external bleedings need to be staunched quickly in the operating theatre – and medical tubing supplied by Primo are fitted to some of the most widely used haemostatic syringes, which are produced by Carmo in Denmark.

Carmo is a Danish company dedicated to the design, production and sales of quality injection moulded plastic components with a high focus on medical components. Carmo leads the international market in drainage valves, connectors and fittings for medical bags and also produce customized OEM products for international medical companies.

For a major OEM customer, Carmo manufactures syringes using precision medical tubing produced by Primo Medico in Poland. The tubes are vital components in the final product, which is a pre-filled syringe used to apply haemostatic paste to an internal wound during surgery.

Extreme precision and craftsmanship

Once delivered from Primo, Carmo’s craftsmen place the millimetre-thin tubes in injection-moulding machines, where the tubes form the core of the final product. A thread is added by injection moulding at one end, and a reinforcing structure at the other, in a highly precise moulding operation. The tube is then fitted to the syringe, which is filled with the haemostatic agent.

The syringe with the haemostatic agent can be fitted with two different applicator tips. One is a white tube, which is straight and stable and used for superficial injection of haemostatic gelatine. The other is colour-coded in a clear blue and is produced by co-extrusion at Primo’s medical production facility, where the TPE matrix is extruded together with a thin aluminium wire. The wire allows the surgeon to bend and twist the tube prior to insertion in the body, making it possible to reach difficult places in internal organs or the like.

Medical tubing at the business end

“Our collaboration with Primo began a few years ago,” says Søren Keller, VP Sales & Marketing at Carmo.

“We were approached by our customer, who had developed the syringe with its prefilled haemostatic agent in collaboration with an engineering firm.

They had very precise requirements for the tolerances of all the components, so it’s really a fine piece of precision craftsmanship that the surgeon gets in his hands during a critical moment in an operation.”

“The tube is the business end of the kit, so to speak,” Søren Keller says, “and it needs to conform to highly exacting standards of precision and stability.

Fortunately, Primo participated with their extrusion expertise right from the start. And with their clean-room production facilities close by, we can rely on them to deliver the quality we need as quickly as we need it.”

About Primo 

Headquartered in Copenhagen, the Danish group has sales and production activities at 11 locations in Europe and China. The group currently has 980 employees and a turnover of 205 million EUR (per 31.12.2022). The company was founded and owned by the Grunnet family and, since its beginning in 1959, has specialised in designing and producing customer-specific profile solutions in plastic.