Overview

The Baxter Mini-Infuser 300XL is a compact, lightweight, battery-powered linear syringe pump designed for the controlled intermittent administration of intravenous medications. The pump was originally developed by the Bard Medsystems Division of C.R. Bard, Inc. and first cleared by the FDA in 1993; it was later marketed by Baxter Healthcare Corporation as the Mini-Infuser 150XL (single-rate) and Mini-Infuser 300XL (multi-speed). The 300XL holds a standard 5 mL, 10 mL, 20 mL, 30 mL, 35 mL, or 60 mL disposable syringe in a barrel clamp and advances the plunger at one of three selectable linear speeds — XLow 1.8 inches per hour, Low 2.7 inches per hour, or Medium 5.5 inches per hour — chosen via a rate selector switch on the back of the case. The selected plunger drive rate combined with the syringe diameter determines the fluid flow rate, allowing the clinician to achieve a specific infusion duration without changing the syringe size. The 300XL is well suited to short-duration medication infusions in critical care, oncology, infectious disease, neonatal, pediatric, and ambulatory care settings, particularly where the broader rate range expands the practical infusion durations achievable from a single syringe.

Display, Indicators, and User Interface

The Mini-Infuser 300XL uses a simplified mechanical interface rather than a programmable display, which keeps the operating workflow short and reduces training overhead for facilities that need a reliable single-purpose device. Operation centers on a three-position switch (Off, On, and On with Alarm), a release lever that disengages the pusher and anti-syphon latch for syringe loading and unloading, and a rate selector switch on the back of the case that chooses among the XLow, Low, and Medium plunger drive speeds. Three colored LED indicators communicate pump status: a flashing green light confirms normal operation, a flashing red light signals end-of-syringe or an occlusion, and a flashing yellow light indicates a low-battery condition. In the On with Alarm position, an audible beeping alarm mimics the flashing red light to provide both visual and acoustic notification. The 300XL also features an active time scale and indicating mark on the case face that shifts with the rate selection, so the clinician can read remaining infusion time directly without consulting a separate nomogram every time the rate is changed.

Drug Delivery and Infusion Configurations

The Mini-Infuser System is designed around three primary administration configurations. The first configuration uses the pump as an intermittent infusion system in conjunction with a heparin lock, with a Microbore extension set connecting the syringe to the patient access. The second configuration is a piggyback delivery in combination with a gravity primary IV line, where the Microbore extension set is attached to the lower injection port or flashball site of the primary set so that the primary flow continues uninterrupted while the syringe contents are delivered. The third configuration is a piggyback in combination with a volume-control chamber such as a Buretrol set, which allows further dilution of the syringe contents into the burette before delivery. On the 300XL specifically, the rate selector lets the clinician extend the same syringe over a longer infusion period at XLow or Low, or run a faster delivery at Medium when the protocol calls for shorter administration. Drugs are typically diluted to a final concentration in the syringe such that one syringe delivery equals one prescribed dose at the desired duration; the Baxter operator’s manual provides nomograms for each compatible B-D and Monoject syringe so clinicians can quickly determine fill volume and total minutes-to-complete for any rate-and-syringe combination.

Multi-Speed Mechanical Design and 300XL Versus 150XL

The Mini-Infuser product family includes two pumps that share the same chassis, syringe holder, and electrical platform but differ in their delivery flexibility. The 300XL is a multi-speed pump with a rate selector switch on the back of the case that selects among three plunger drive speeds — XLow at 1.8 inches per hour, Low at 2.7 inches per hour, and Medium at 5.5 inches per hour — expanding the practical infusion duration range without changing syringe sizes. Because the ratio between XLow and Medium is approximately three to one, the operator’s manual notes that minutes-to-complete at XLow is roughly three times the corresponding value at Medium for the same syringe. The 150XL is the single-rate sister product, intended for facilities that want the simplest possible workflow for a single fixed plunger drive rate. Because the 300XL is a fixed-mechanical-rate pump, it does not maintain a programmable drug library, dose error reduction software, or any electronic settings beyond the on/off/alarm switch and rate selector. The same battery, syringe holder, anti-syphon latch, and alarm logic are shared between the two models, which simplifies parts inventory and biomed training when a facility carries both. IPR Medical stocks both the 150XL and the 300XL and can advise on which model best matches a specific clinical workflow when replacements are being considered.

Battery Operation, Mounting, and Portability

The Mini-Infuser 300XL is exclusively battery operated and does not include an AC power option. Four standard “C” size alkaline cells provide approximately 400 hours of typical service life, and the pump alarms with a flashing yellow light at a battery threshold of 4.0 ± 0.2 volts; once the low-battery indication appears, approximately 4 hours of remaining infusion time is typical before the pump can no longer drive the plunger. Battery selection is operationally significant because the FDA-classified Class 3 correction in 2011 (described below) traced inoperability to a contact-diameter incompatibility between the pump’s battery spring and certain over-the-counter C cells, so consistent sourcing of compatible alkaline cells matters for reliability. The pump weighs 1.75 lbs with batteries installed and measures 5 inches tall by 4.5 inches wide by 1.6 inches deep, which makes it convenient for ambulatory and bedside use. Mounting options include an integrated IV pole loop molded into the case and an optional mounting bracket that secures the pump to bedrails, headboards, transport carts, and other surfaces. The impact-resistant ABS molded enclosure is appropriate for routine clinical handling, though the manual notes the pump should not be immersed and is not suitable for use in the presence of flammable anesthetics.

Service, Maintenance, and Calibration Considerations

Baxter has ended factory service on the Mini-Infuser 300XL, which means hospitals that continue to operate these pumps must rely on third-party service organizations or in-house biomedical engineering teams for repair, calibration, and parts. The Baxter operator’s manual specifies a regular calibration check that includes verifying free movement of the syringe holder mechanism, confirming proper retention by the anti-syphon latch, validating the audible alarm, and confirming that downward force at the syringe holder of approximately 8.0 ± 1.0 lbs triggers the occlusion alarm within the specified 70-second detection window. Service technicians should also verify correct rate selection at each of the three plunger drive speeds. The manual recommends lubricating the lead screw at least every six months using the manufacturer-supplied grease and applicator. Because the 300XL has no electronic display, no event log, and no networked diagnostic interface, biomed inspections rely on direct mechanical and electrical checks rather than on software-based service screens. IPR Medical performs service, calibration, and repair on the Mini-Infuser 300XL and can supply replacement components such as the pole clamp, mounting bracket, and battery cover when these are confirmed available from OEM or compatible-parts sources.

FDA Device Corrections and Safety Bulletins

The FDA Medical Device Recalls Database lists one device correction for the Mini-Infuser 300XL: a Class 3 recall, FDA recall number Z-2269-2012, initiated by Baxter Healthcare Corporation on March 4, 2011 and terminated on August 27, 2012. The correction is paired with the parallel 150XL recall (Z-2268-2012) and addresses a battery contact compatibility issue. The Mini-Infuser battery spring has a flat contact measuring approximately 0.53 inches on the inner diameter of the spring coil; the IEC 60086-2 and ANSI 08 standards specify a minimum contact diameter for C-cell batteries of 0.51 inches. If a C cell with the minimum allowable contact diameter is installed, the contact circuit may not complete and the Mini-Infuser will not power on. The same battery interface design is shared with the Baxter InfusO.R. pump, and Baxter expanded the original InfusO.R. safety alert (issued January 11, 2011) to include the Mini-Infuser 150XL and 300XL with the March 2011 correction. The recall covers all serial numbers of product codes 2M8171 (new) and 2M8171R (refurbished). Approximately 19,380 units of the 300XL were affected, with a distribution pattern covering roughly 45,865 units across the combined Mini-Infuser System. The FDA classified the action as Class 3, indicating that use of the affected product is not likely to cause adverse health consequences, because the failure mode is a clear and immediate failure to power on rather than a delivery accuracy or alarm failure during active infusion.

Because FDA device corrections and safety communications may be updated or expanded after the date of this listing, IPR Medical recommends that facilities also check the FDA’s official resources directly to ensure they have the most current information.

FDA resources for further review:
FDA Medical Device Recalls Database  |
FDA Medical Device Safety

IPR Medical — Buy, Sell, Repair, and Parts

IPR Medical is an independent secondary-market specialist in the Baxter Mini-Infuser 300XL. Because Baxter has ended factory service on this product, hospitals, ambulatory clinics, veterinary practices, and infusion service organizations that continue to use the 300XL rely on third-party support for replacement units, repair, calibration, and parts. IPR Medical purchases retired Mini-Infuser 300XL pumps for fleet refresh, sells recertified 300XL units that have been tested against OEM-defined functional and accuracy criteria across all three plunger drive speeds, repairs and recalibrates customer-owned pumps, and stocks the most commonly requested wear and accessory parts including pole clamps and mounting hardware. Recertified pumps include the standard rubber boot, pole clamp, and operator’s guide. Whether a facility needs to consolidate its multi-speed Mini-Infuser fleet, recover capital by selling pumps no longer in clinical rotation, or extend the service life of existing units through repair, IPR Medical provides a single point of contact for the full product life cycle.

IPR Medical buys, sells, repairs, and stocks parts for the Baxter Mini-Infuser 300XL. Contact IPR Medical at 855-477-8866 or cs@iprmed.com with service or software questions.

Trademark Notice: Baxter, and all other brand names, model names, and part numbers shown are trademarks of their respective owners and are used on this page only to identify the original manufacturer’s equipment offered here, consistent with nominative fair use. This listing is offered by IPR Medical, an ISO 9001:2015-certified independent service organization, and is not sponsored by, affiliated with, or endorsed by Baxter.