Overview

The Moog CURLIN PainSmart™ IOD (Information on Demand) is an ambulatory volumetric infusion pump built on Moog Medical’s proven CURLIN 6000 platform and purpose-configured for pain management therapy. It is designed to deliver patient-controlled analgesia (PCA), patient-controlled epidural analgesia (PCEA), and subcutaneous infusions in a compact, portable package suitable for hospital inpatient use, outpatient procedures, ambulatory surgery centers, home care, and hospice settings. The distinguishing characteristic of the IOD model — the feature that differentiates it from the standard PainSmart — is the dedicated Information on Demand keypad row that gives clinicians and patients access to real-time infusion data at any moment without stopping or pausing the running therapy. In a clinical environment where PCA outcomes depend heavily on staff being able to quickly verify bolus history, dose totals, and line pressure trends at the bedside, this capability significantly improves monitoring workflow and patient safety visibility.

The Information on Demand (IOD) Feature

The IOD feature is a set of dedicated labeled keys on the PainSmart IOD keypad that, when pressed while the pump is running, display specific infusion data for several seconds before the screen returns automatically to the run screen — all without any interruption to the ongoing infusion. The data accessible via IOD includes: hourly totals delivered, boluses attempted versus boluses given (a critical metric for assessing patient pain management adequacy and compliance), patient-side downstream line pressure (allowing detection of soft occlusion trends before they trigger an alarm), remaining battery level, and shift totals. For nurses conducting pain reassessments, this means a single button press rather than navigating multiple menu screens — particularly valuable during busy shift handoffs or when caring for patients in acute post-operative pain who cannot tolerate any infusion pause.

Curvilinear Peristaltic Design and Delivery Accuracy

The PainSmart IOD uses Moog’s patented curvilinear peristaltic pumping mechanism rather than the linear peristaltic design used by many ambulatory infusion pumps. The practical clinical significance of this distinction lies in two areas: resolution of flow and continuity of flow. The curvilinear design delivers fluid in smaller, more frequent increments — achieving a flow resolution of just 2 microliters — producing a smoother, more steady flow profile throughout the infusion duration compared to the larger bolus-like steps of linear peristaltic designs. For pain medications where even small delivery fluctuations can affect analgesic effect, particularly at the low rates used in epidural and subcutaneous therapy, this matters clinically. Volumetric accuracy is rated at ±5% when used with bags or reservoirs; facilities using syringes should note that syringe plunger stiction may cause accuracy to vary beyond this specification at low flow rates.

Therapy Flexibility and Administration Routes

The PainSmart IOD supports three administration routes — intravenous (IV), epidural (EPI), and subcutaneous (SQ) — and three units of delivery: milliliters, milligrams, and micrograms. This flexibility allows the pump to serve a broad range of clinical applications, from straightforward post-operative IV PCA with morphine or hydromorphone to epidural bupivacaine infusions in labor and delivery units to subcutaneous hydromorphone or ketamine in palliative care settings. Each route has route-specific maximum flow rate limits built into the firmware: up to 50 ml/h for IV (rates above 9.9 ml/h require PLSS), up to 25 ml/h for epidural, and up to 5 ml/h for subcutaneous. Institutions can use PLSS to lock the pump to a single route and unit of delivery if clinical standardization requires it, preventing clinician-level route changes without biomedical or administrative override.

Patient demand boluses are programmable from 0.1 ml per dose up to the route maximum, with a lockout interval of 1 to 60 minutes that prevents re-dosing within the programmed window. Up to 15 patient boluses per hour can be authorized. A dedicated Remote Bolus Cord (340-2005) accessory connects to the pump via a color-keyed port and allows the patient to request a bolus without reaching the pump itself — particularly useful for post-operative patients with limited mobility, patients in traction, or those receiving epidural therapy in labor and delivery where the pump may be positioned away from the patient’s hands.

Protocol Library Safety System (PLSS) Integration

The PainSmart IOD is compatible with Moog’s Protocol Library Safety System (PLSS) — facility-purchased software that loads pre-validated drug protocols directly onto the pump and enforces institution-defined dose limits through the medLMTS™ (medication limits) system. With PLSS active, nurses select a drug and concentration from the loaded library rather than manually entering a basal rate and bolus parameters — eliminating one of the primary sources of programming error in PCA therapy. The medLMTS system can enforce hard stops on basal rate, bolus dose, loading dose, and cumulative hourly maximums, with the pump refusing to accept any values outside the configured limits. Shift totals, hourly totals, and full event histories are downloadable via the Patient History Manager (PHM) software through the data interface port, supporting pharmacy review, quality audits, and clinical documentation.

Administration Sets and Consumables

The PainSmart IOD requires proprietary Moog Curlin administration sets, which feature the company’s patented Integral Flow-Stop — a spring-activated, self-clamping mechanism that automatically clamps the tubing when the pump door is opened, preventing inadvertent free flow during set changes. All Curlin sets are non-DEHP PVC and latex-free. Available configurations include standard microbore sets (non-filtered, fill volume ±4 ml), filtered sets with 0.22 and 1.2 micron filters, yellow-stripe epidural-specific sets for visual route identification, sets with integral 150 ml medication reservoirs, and anti-siphon valve (ASV) sets that provide an additional layer of free-flow protection for clinical settings with specific requirements. Use of non-proprietary administration sets voids Moog’s accuracy specifications and is explicitly contraindicated in the user manual.

IPR Medical stocks Curlin administration sets for the PainSmart IOD, giving facilities and home health agencies a single source for their pump service and consumable sets.

Portability, Battery, and Ambulatory Use

At 18.1 oz (513 g) and measuring 5.1″ × 4.0″ × 2.5″, the PainSmart IOD is genuinely wearable for ambulatory patients. Moog offers four sizes of soft carry packs and a dedicated pump holster for patients who need hands-free mobility while receiving therapy. The pump is powered by two standard C-cell alkaline batteries — widely available and inexpensive — which provide approximately 85 hours of runtime at 2 ml/h, 30 hours at 125 ml/h, or 10 hours at 400 ml/h. An optional external rechargeable battery pack extends runtime further, and the AC adapter/charger supports bedside or home use. For life-sustaining therapy, Moog recommends using the AC adapter with backup C-cells installed simultaneously. The pump’s IPX1 water-resistant housing withstands dripping water and fluid spillage, though it should not be submerged. A mandatory dual-key press is required before a running pump can be powered off, preventing accidental therapy interruption.

FDA Device Corrections and Safety Bulletins

The PainSmart IOD has an FDA device correction history that facilities should be aware of when assessing pumps in their inventory.

In 2011, the FDA classified a voluntary correction of the Curlin 6000 CMS, Curlin 6000 CMS IOD, PainSmart, and PainSmart IOD as a Class I recall — the FDA’s most serious recall class — due to a software anomaly (Error Code 45, EC45) that could cause the pump to shut down unexpectedly during therapy. The affected units were manufactured and updated between May 2007 and February 2011. Moog Medical notified all affected customers by certified mail in February 2011, directed that any pump displaying EC45 be removed from service and returned to Moog for software correction, and confirmed that no adverse patient events had been reported at the time of the recall announcement. The correction involved a firmware update. Facilities that acquired PainSmart IOD pumps in or after 2011 should verify their units’ software revision status to confirm the correction has been applied.

Additionally, a Class 2 device recall (FDA ID 142508) covering the Curlin Ambulatory Volumetric Infusion Pump family and a separate Class 2 recall (FDA ID 108283) covering Curlin Infusion Administration Sets are on record. Class 2 recalls indicate the product may cause temporary or medically reversible adverse health consequences.

Action recommended: Facilities with PainSmart IOD pumps manufactured between May 2007 and February 2011 should verify that the EC45 software correction has been applied to each unit prior to placing it in service. IPR Medical can assist with pump inspection, software verification, and service. Contact us at 855-477-8866 or cs@iprmed.com.

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 Medical Device Recalls Database
• FDA Medical Device Safety

IPR Medical — Your Source for the CURLIN PainSmart™ IOD

IPR Medical buys, sells, repairs, and stocks parts and administration sets for the Moog CURLIN PainSmart™ IOD. Whether you need refurbished units for your pain management fleet, replacement components, battery packs, EC45 software verification and correction service, or Curlin administration sets to support your patient population, our team has the expertise and inventory to help. We understand the clinical urgency of keeping PCA and PCEA therapy available without interruption — and we’re here to support your program.

IPR Medical buys, sells, repairs, and stocks parts and administration sets for the Moog CURLIN PainSmart™ IOD. Contact us at 855-477-8866 or cs@iprmed.com.