Kawasumi INT-01 Intermittent Injection Cap

The Kawasumi INT-01 is a sterile intermittent injection cap (also called an injection site or injection port) used in intravenous (IV) infusion therapy. It is a disposable needle-free connector that attaches to an IV administration set (often on a winged “butterfly” needle set) to allow repeated injections of medication or flushes without disconnecting the line. The INT-01 has a male Luer connector on its end, meaning it mates with the standard female Luer port on IV tubing or catheters. Kawasumi describes the INT-01 as a “low cost injection site” with a male Luer connector that “allows [the] clinician to perform multiple injections when attached to a winged infusion set,” and notes that it is latex-free.

Each INT-01 unit consists of a short plastic extension (a 7/8″ tube) with a male Luer fitting. A silicone or rubber septum inside provides a needleless seal. To use it, the male Luer end is attached to the IV set, and a syringe with a female Luer tip can be attached to inject medication or saline. The septum reseals automatically when the syringe is removed, preventing leaks and maintaining sterility. Kawasumi (a Japanese medical device company) packages the INT-01 caps in boxes of 50 each, for example, lists “Intermittent Injection Cap Male Luer Connector 7/8″ 50/Bx” under Kawasumi Labs America, code INT-01. The device is intended for single-patient use and is discarded after the infusion or treatment is completed.

Features

• Male Luer connector: The INT-01 has a standard non-needle male Luer fitting (slip-type) on one end to connect to IV tubing. This makes it compatible with most winged infusion sets and IV lines. (By contrast, some devices use a Luer lock fitting, but Kawasumi’s description simply calls it “male Luer connector.”).
• Tube length ~7/8″: The rigid plastic tube portion is about 7/8 inch long (roughly 2.2 cm). This extra length provides space for the septum and connection. (For comparison, a B. Braun injection cap has a length of 0.75″ (1.9 cm), so the INT-01 is slightly longer.)
• Latex-free: The cap is made of materials free of natural rubber latex (and the product listing explicitly says “Not Made With Natural Rubber Latex”. This reduces allergy risks. Similarly, many modern connector devices are free of PVC plasticizers (DEHP). For example, a comparable B. Braun injection cap is labeled “DEHP-free, Latex-free”, and Kawasumi’s own literature ensures it is latex-free.
• Needleless, split-septum design: Like other modern ports, the INT-01 uses a needleless design (no sharp cannula) with an internal split septum. This allows safe injection through the cap without risk of needlesticks. For instance, B. Braun’s Safeline injection site (a similar product) is described as a “needleless split septum injection site” with a male Luer connector. Kawasumi’s cap likewise provides a secure seal that prevents backflow and air entry when not in use.
• Priming volume (internal dead space): While Kawasumi does not publish the exact internal volume, comparable devices have very small priming volumes (the fluid that remains in the cap). For example, B. Braun’s version has about 0.1 mL dead space (B. Braun’s “intermittent injection cap” lists 0.1 mL, 0.75″ length). Kawasumi’s slightly longer 7/8″ cap likely has a priming volume on the same order of 0.1–0.2 mL. (Even the Safeline connector mentions 0.25 mL.) A small priming volume minimizes wasted medication.

Usage and Applications

These injection caps are used to give IV medications or flushes intermittently without breaking the infusion line. A typical use case is on a saline lock or or “heparin lock” IV – the cap is attached to the catheter hub or inline tubing. Medical staff or patients insert a syringe into the male Luer end of the INT-01 (often via a female Luer syringe), push medication through the septum into the IV line, and then remove the syringe. The spring-loaded septum closes automatically, keeping the line closed between injections. This makes the process safe and efficient. As one distributor notes, the device is “designed for safe and efficient medication administration” and that each cap is “individually wrapped to maintain sterility and prevent contamination”. The male Luer connector is “easy-to-use,” and the cap’s compact design makes it convenient for both hospital settings and patient self-care when needed.

In practice, such a cap is used wherever multiple IV injections are needed through the same IV access. For example, during an infusion of fluids or blood, clinicians may use the cap to inject small pushes of drugs or to flush the line with saline without disconnecting the set. The Kawasumi INT-01 allows multiple injections (“intermittent” use) into the line while maintaining a closed system. By contrast, a non-intermittent (single-use) injection port would be disconnected after one injection.

Packaging and Availability

Kawasumi sells the INT-01 caps in sterile packages of 50 units per box (and cases of 4 boxes). Major medical suppliers list it as 1209596 – INT-01. For example, Henry Schein’s catalog entry reads “Intermittent Injection Cap Male Luer Connector 7/8″ 50/Bx” for Kawasumi Labs America code INT-01. International distributors (e.g. McKesson item 234853) similarly identify it as “PORT, INJ w/MALE LUER CONNECTOR (50/BX)” by Kawasumi.

As a medical device, INT-01 is labeled “Rx only” (prescription or professional use) in the U.S. It is manufactured by Kawasumi Laboratories (Japan) with production in Thailand. For example, McKesson’s data states “Country of Origin: Thailand” and “Manufacturer: Kawasumi Laboratories” for item INT-01. Distributors will typically require a valid healthcare license or prescription to purchase.

In summary, the Kawasumi INT-01 Intermittent Injection Cap is a needleless IV injection port with a male Luer connector, about 7/8″ tube length, latex-free, disposable, and sold in 50-pack boxes. It functions as a safe injection site for administering medications into an IV line without needing to puncture with a needle. Its features (male Luer, split septum, DEHP-/latex-free materials, small priming volume) are in line with industry standards for needleless connectors.