Overview

The Moog Curlin 4000 CMS (Clinical Management System) is a multi-therapy ambulatory infusion pump designed for use in hospitals, home infusion programs, and alternate-care environments. Originally developed by Curlin Medical and later acquired by Moog Inc., the 4000 CMS delivers medications intravenously, epidurally, or subcutaneously from a reservoir bag, IV bag, or compatible syringe. It is compact enough for ambulatory patients to carry in a soft pack, yet fully capable of pole-mounted use in institutional settings. Its curvilinear peristaltic pumping mechanism provides a flow resolution of 2 mcL — up to 25 times finer than standard peristaltic ambulatory pumps — resulting in more consistent, accurate delivery particularly at low infusion rates.

Therapy Modes

The 4000 CMS supports six distinct therapy delivery modes, making it one of the most clinically versatile ambulatory pumps in its class. Continuous mode delivers a constant programmed rate from 0.1 to 400 ml/h. PCA (Patient Controlled Analgesia) mode supports IV, epidural, or subcutaneous delivery with clinician-programmed continuous background rates and patient-initiated demand boluses, including lockout intervals of 1 to 60 minutes and a maximum of 15 boluses per hour. PCEA (Patient Controlled Epidural Analgesia) extends the same PCA functionality for epidural administration. TPN mode features automatic ramping at the start and/or end of the infusion and an early ramp-down option for total parenteral nutrition protocols. Intermittent mode delivers programmed doses at defined intervals with an optional keep-vein-open (KVO) rate between doses. Variable mode allows up to 24 individually programmed dose segments, each with its own rate, volume, and duration — ideal for complex titration or step-dose protocols.

Safety and Programming Features

The 4000 CMS incorporates multiple layers of safety that reduce the risk of programming errors and inadvertent therapy interruption. The Integral Flow-Stop on each proprietary Curlin administration set automatically clamps the tubing the moment the pump door is opened, preventing inadvertent free-flow without requiring the clinician to manually close the slide clamp. The pump requires two independent key presses before it can be turned off while running, minimizing accidental shutdowns. Three tamper-resistant lock settings restrict unauthorized changes to the prescription. Upstream and downstream occlusion alarms notify clinicians of blockage on either side of the pumping chamber; the 4000 CMS also includes a High Upstream Pressure alarm and displays real-time line pressure on the screen — a CMS-specific feature that helps detect subtle catheter obstructions before they become clinically significant. Audio alarm volume is adjustable from level 1 to 9 but cannot be fully silenced. All programmed settings are retained in memory even if the pump is turned off mid-therapy, enabling clinicians to resume exactly where the infusion left off or repeat the same prescription without reprogramming.

Portability and Mounting

At 17.5 oz (496 g) and measuring 5.1″ × 4.0″ × 2.5″, the Curlin 4000 CMS is genuinely portable. Moog offers four sizes of soft carry packs for ambulatory patients — including a backpack large enough to accommodate the pump, AC adapter, and up to a four-liter IV bag. The pump also accepts a detachable pole clamp for bedside or IV pole use, and lockable safety shells that can be free-standing, pole-mounted, or placed in a carry case for additional security. A pump holster and remote bolus cord accessory round out the mounting and patient-use options. For stationary use, the AC adapter provides continuous backlit display and eliminates battery drain.

Power and Battery

The 4000 CMS is powered by two standard “C” alkaline batteries — a deliberate design choice that reduces operational cost and ensures batteries are always available without reliance on proprietary packs. Battery life varies with flow rate: nominally 10 hours at 400 ml/h, 30 hours at 125 ml/h, and up to 85 hours at 2 ml/h. An optional external rechargeable battery pack (P/N 340-2006) extends runtime, and a universal AC adapter/charger (P/N 340-2004 or 340-2022) supports continuous stationary use. All programmed data is retained through power interruptions, so therapy can resume without reprogramming once power is restored.

Administration Sets and Consumables

The Curlin 4000 CMS requires Curlin Medical proprietary administration sets. These non-DEHP PVC sets are available in microbore and standard configurations and feature the Integral Flow-Stop mechanism that prevents free-flow when the door opens. Epidural-specific sets with 0.22-micron filters, no injection ports, and yellow striping are also available for epidural therapy. Sets should not exceed 72 hours of use. IPR Medical stocks Curlin-compatible administration sets alongside the pumps themselves, giving facilities a single-source option for both hardware and consumables.

IPR Medical — Sales, Repairs, and Parts

IPR Medical buys, sells, repairs, and stocks parts and compatible administration sets for the Moog Curlin 4000 CMS. Whether your facility is looking to add units, service existing pumps, or source consumables, IPR Medical can help. Our biomedical technicians are experienced with the Curlin 4000 platform and can perform preventive maintenance, functional testing, and repair to return pumps to verified working condition.

IPR Medical buys, sells, repairs, and stocks parts and IV sets for the Moog Curlin 4000 CMS. Contact us at 855-477-8866 or cs@iprmed.com.