
Abbott AVEIR VR Leadless Pacemaker | REF LSP112V
Abbott AVEIR VR single-chamber leadless pacemaker (REF LSP112V) for right ventricular pacing, featuring a catheter-based delivery system and retrievable design.

The Medtronic Micra AV Leadless Pacemaker (REF MC2AVR1) is a miniaturized, self-contained transcatheter pacing system from Medtronic. Implanted directly into the right ventricle through a femoral venous approach, it eliminates the need for a transvenous lead and a surgical chest pocket. The Micra AV variant uses internal accelerometer-based atrial sensing to provide AV synchronous pacing for patients with AV block.
Key Features
Leadless, self-contained design with integrated battery, electronics and electrodes in a single capsule
AV synchronous pacing via mechanical atrial sensing using an internal 3-axis accelerometer
Delivered transcatheter through a femoral vein, avoiding a surgical pocket and transvenous lead
Active fixation using flexible nitinol tines for ventricular myocardial attachment
MRI conditional labeling per manufacturer documentation
Programmable via the Medtronic CareLink programmer ecosystem
Designed for retrieval or permanent abandonment with subsequent device implantation when battery depletes
Clinical Applications
Single-chamber ventricular pacing indications as defined by the manufacturer's IFU
Patients with atrioventricular block who may benefit from AV synchronous pacing
Cases where transvenous lead or surgical pocket is undesirable, such as limited venous access or elevated pocket-related infection risk
Bradyarrhythmia management consistent with current Medtronic labeling
Product Information
Brand: Medtronic
Model: Micra AV Transcatheter Pacing System
REF / UPN: MC2AVR1
Category: Pacemakers / Cardiac Rhythm Management
Pacing Mode: Single-chamber ventricular with AV synchronous (VDD-style) functionality via accelerometer-based atrial sensing
Fixation: Nitinol tines, active fixation
Delivery: Transcatheter, femoral venous approach using the dedicated Micra delivery system
MRI Compatibility: MR Conditional per Medtronic labeling; refer to current IFU for scan parameters
Dimensions and Weight: Not specified in the located sources
Battery Longevity: Not specified in the located sources
Sterility: Supplied sterile for single use; refer to packaging for method and expiry
Regulatory and Clinical Use: Refer to the official Medtronic Instructions for Use and local regulatory labeling for indications, contraindications, warnings and precautions
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