Medical Device Link.

EQUIPMENT UPDATE

Modular system inserts plunger rods into syringe barrels

A maker of automatic dosing and packaging machines has introduced a novel machine that inserts plunger rods into syringe barrels. The design of the Hasta system from MG2 srl (Pian di Macina di Pianoro, Italy; www.mg2.it) is based on the manufacturer’s capsule filler machine line. Featuring a compact footprint, the machine can perform either 200 or 400 rod insertions per minute, depending on user preference. It is equipped with a compact unit that transfers assembled syringes to a downstream machine. The machine also incorporates a P&A labeller and vision system that checks alignment of the label as well as printed data.

Designed for modularity, the machine can be configured in a variety of ways. For instance, it is engineered to accept a backstop inserting unit. The system also can be upgraded with an additional module to insert a safety device onto the syringe. A second P&A labeller can be added to avoid machine stops owing to the reel replacement time.

Machine cuts, coils and bands tubing

A semiautomatic workstation for processing medical tubing is composed of an independent tube cutter, a bench-top coiling and banding unit and stand-alone uncoiler. The tubing, cut to length directly from a reel, is coiled to the specified dimensions and shape, banded and automatically discharged. The length, diameter and coil shape of the cut tubing, position of the free tubing ends and type of banding can be easily adjusted.

The standard version of the Bandy machine from A Uno Tec (Mirandola, Italy; www.aunotec.it) can process medical tubing in ODs up to 4.1 mm. It can band coiled 0.5-in. tubing with medical-grade cohesive tape with or without latex.

On average, the machine can single-band 600 pieces of tubing per hour. The Bandy is suited for processing medical subassemblies such as infusion sets, heparin lines and extension lines.

Pneumatic press suited for precise joining and assembly operations

A pneumatic press is suited for use in monitored medical device assembly operations. Schmidt Technology (St. Georgen, Germany; www.schmidttechnology.com) has expanded its pneumatic press line with process monitoring by introducing a machine that operates in the low-force range. The new PneumaticPress 320 has a force range up to 1.6 kN at 6 bar; standard stroke is 100 mm. Real-time process control and monitoring plus detailed process documentation and visualisation are accommodated by the system.

The PneumaticPress 320 has a round ram with roller-guided rotary protection. The ram bores are precisely aligned with the tabletop. A ram drift lock is available as an option. A special piston with double seals in the pneumatic cylinder ensures a long service life and leakage protection.

The press is suited for precise joining and assembly of medical devices, where continuous monitoring of manufacturing quality is required.

Cartesian gantries perform precise contouring operations

Cartesian gantries from Aerotech GmbH (Nürnberg, Germany; www.aerotech.com) are designed to provide precise contouring. They are driven by high-power brushless linear servomotors that enable smooth motion. The AGS15000 series Cartesian gantries are suited for a range of automation applications including micromachining, stencil cutting, high-speed pick-and-place, assembly, inspection and dispensing.

The company’s BLM and BLMH series brushless linear servomotors enable the AGS15000 to achieve speeds of 3 m/s and accelerations of 5 g. Dual linear motors and encoders are included on the lower axis for performance and precision purposes.

The rugged noncontact optical linear encoders offer resolutions to 1 nm when coupled with the firm’s encoder multiplier. The noncontact linear motor avoids wear, backlash and maintenance issues found in ball-screw-driven systems.

The system’s design positions the linear motors and encoders outside the work area, making the gantry less susceptible to debris-induced damage. A configurable cable management system allows integration of fibre lasers, cameras, airlines and so forth for multiple applications. Large bend radii and high-flex cables allow the AGS15000 to provides millions of cycles of maintenance-free operation.

Machine crimps surgical threads

A standard automatic crimping machine from Sysmelec SA (Gals, Switzerland; www.sysmelec.ch) is designed for industrial assembly of surgical sutures. The SCM100 seamlessly shifts between stored variants. Changeover typically takes between 5 and 15 minutes, depending on the application. The machine assembles single as well as multifilament threads on needles of various dimensions and shapes. To minimise the force applied to the thread and to detect potential knots, the machine is fitted with a thread unwinding mechanism. Thread length can be programmed between 35 and 90 cm.

Multifilament threads are hardened using a proprietary thermal process. Assembly operations are carried out using advanced robotics and measurement technologies.

The crimping operation is monitored in terms of force. Between 1 and 5 crimping points can be programmed, according to the suture to be treated.

A “pull test” quality check is carried out on each suture before it is placed in its receptacle. A destructive test that is fully integrated into the system is performed at intervals determined by the user.