Atherectomy systems represent a significant capital and disposable-supply investment for interventional programs treating calcified peripheral arterial disease. Unlike a balloon or stent purchase, an atherectomy system evaluation typically involves assessing a console or drive unit alongside disposable catheter components, along with training requirements that differ meaningfully from balloon- or stent-based workflows. This guide outlines the questions procurement and clinical teams commonly raise when comparing atherectomy device evaluation options.
What Burr or Cutting Element Sizes Are Available?
Since atherectomy devices physically remove or modify plaque using rotating burrs, cutting blades, or laser elements depending on the technology, the range of available burr or element sizes determines which vessel diameters and lesion types a given system can address. A program treating a wide range of vessel calibers, from smaller tibial arteries to larger iliac segments, benefits from a system offering multiple independent sizing options rather than a single fixed configuration.
Does the System Include Integrated Aspiration?
Debris generated during atherectomy — whether from plaque debulking or thrombus removal — must be managed to reduce the risk of distal embolization. Systems with integrated, high-powered aspiration capability are designed to actively clear this debris during the procedure, which procurement teams should distinguish from systems requiring separate aspiration equipment or relying primarily on distal embolic protection devices instead.
Guidewire Compatibility and Workflow Fit
Atherectomy systems are typically compatible with either 0.014" or 0.035" guidewire platforms, and some offer both, depending on the target vessel size and clinical application. Confirming guidewire compatibility against an institution's existing inventory and typical procedural workflow avoids introducing an additional, non-standard consumable requirement.
Imaging Compatibility and Procedural Guidance Features
Some newer atherectomy platforms offer compatibility with intravascular ultrasound (IVUS) for real-time vessel and calcium assessment during the procedure, or incorporate other guidance features intended to help the operator gauge debulking progress. Procurement teams evaluating these features should weigh their added value against additional cost and training time, since not every program's case mix requires this level of intra-procedural guidance.
Capital Equipment vs Disposable Cost Structure
Atherectomy systems generally involve a combination of capital equipment (a drive unit, console, or handheld motor) and per-case disposable catheters, and the overall cost structure across this mix should be modeled against expected case volume. Programs with lower anticipated volume may weigh capital cost more heavily, while high-volume programs may prioritize lower per-case disposable pricing.
Training and Learning Curve Considerations
Atherectomy technique differs meaningfully from balloon or stent-based intervention, and different platforms have different learning curves related to catheter handling, speed or activation control, and debris management technique. Programs evaluating a new system should factor in available training support and whether existing staff have prior experience with a similar device category.
INVAMED's TemREN Rotational Atherectomy System
INVAMED's TemREN Rotablator, also referenced as the TemREN Peripheral Atherectomy System, is a rotational atherectomy device using high-speed, front-cutting burrs. According to manufacturer-reported specifications, it offers multiple independent burr sizes, customizable rotational speed, compatibility with both 0.014" and 0.035" guidewires, high-powered aspiration for debris management, IVUS compatibility, and Bluetooth remote control functionality for Android and iOS devices with an embedded system described by the manufacturer as AI-assisted. In a manufacturer-cited study combining TemREN atherectomy with an Extender drug-coated balloon in lower-extremity lesions, lesion technical success was reported at 97.0% against an 86% performance goal. Full specifications are on the TemREN Rotablator product page; confirm current availability and indications via the Instructions for Use (IFU), as these vary by country. See the peripheral arterial disease device category for complementary balloon and stent technologies.
How important is IVUS compatibility when evaluating an atherectomy system?
IVUS compatibility can add value for programs regularly treating complex or heavily calcified lesions where precise calcium assessment aids technique, but it is one of several evaluation criteria rather than a mandatory feature for every program, particularly those with a more straightforward typical case mix.
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.