Pre-owned / Used 2021 BOSTON SCIENTIFIC Cosman G4 LESION GENERATORS for Sale

Hardware Summary

RF lesion generator with 4 independent channels, 500kHz RF output, 200W max power, 100-1000Ω impedance range, precision temperature control to 0.1°C, touchscreen interface, CE, FDA 510(k)...

Software Summary

Proprietary RF generator software v4.2 with real-time impedance monitoring, lesion size prediction algorithms, patient safety interlocks, DICOM integration, HIPAA-compliant data logging, ...

Accessories Summary

Compatible with Cosman RF electrodes (1.5-4mm active tips), grounding pads, patient return electrodes, calibration kits, sterile drapes, RF cables, and Boston Scientific proprietary acces...

Hardware

The Cosman G4 RF Lesion Generator (Model RFG-4) is a state-of-the-art radiofrequency (RF) ablation system designed for precise neurosurgical lesion generation. The device features four independent RF output channels, each capable of delivering up to 200W of power at a frequency of 500kHz, with an adjustable impedance range of 100 to 1000 ohms. The system incorporates advanced temperature control with a resolution of 0.1°C, ensuring accurate lesion formation while minimizing thermal spread to adjacent tissues. The unit is housed in a compact, mobile cart with integrated touchscreen interface for intuitive operation. Key hardware components include isolated RF output modules, high-precision current and voltage sensors, real-time impedance monitoring circuitry, and fail-safe thermal shutdown mechanisms. The device supports both monopolar and bipolar RF delivery modes, with configurable lesion parameters including power, time, and temperature limits. Physical dimensions are 18.5 x 14.

Software / Upgrade / OS / Applications / Worklist

The Cosman G4 operates on a proprietary embedded software platform (v4.2) designed specifically for RF lesion generation in neurosurgical procedures. The software features a high-resolution touchscreen interface with customizable lesion protocols tailored for specific clinical applications such as thalamotomy, pallidotomy, and cingulotomy. Real-time monitoring includes continuous impedance tracking with audible and visual alerts for abnormal conditions (e.g., impedance >1000Ω or <100Ω), ensuring patient safety during procedures. The system incorporates lesion size prediction algorithms based on historical data and real-time impedance trends, providing clinicians with estimated lesion dimensions prior to activation. Data logging capabilities include automatic recording of procedure parameters (power, temperature, time, impedance) with timestamping for regulatory compliance and quality assurance.

Accessories

The Cosman G4 system is compatible with a comprehensive range of accessories designed to optimize performance and safety in neurosurgical RF lesion generation. Primary accessories include Cosman RF electrodes with varying active tip lengths (1.5mm, 2mm, 3mm, 4mm) and diameters (1.0mm, 1.5mm, 2.0mm), each with temperature monitoring capabilities. Patient grounding is facilitated through sterile, single-use return electrodes (3M™ 2228 or equivalent) with impedance monitoring to prevent skin burns. The system requires specialized RF cables (Cosman part # RF-CBL-4) for connection to electrodes and grounding pads. For calibration and quality assurance, the device utilizes Cosman RF Calibration Kit (part # RF-CAL-KIT) with precision resistors and test loads. Sterile drapes and procedure-specific kits are available for maintaining aseptic conditions during surgery. Additional accessories include the Cosman RF Electrode Holder (part # RF-EH-1) for precise electrode positioning, and the Cosm...

Warranty Inclusions & Exclusions

This Cosman G4 RF Lesion Generator (Model RFG-4) is offered as-is in pre-owned condition with no warranty, refund, or return policy. The seller does not provide any express or implied warranties regarding the condition, performance, or fitness for a particular purpose of the device. The buyer assumes all responsibility for inspection, testing, and verification of the device's functionality prior to purchase. The seller may assist in organizing shipping at the buyer's expense, with all associated risks and liabilities transferred to the buyer upon delivery. It is strongly recommended that the buyer conducts a comprehensive pre-purchase evaluation, including functional testing of all RF channels, temperature control systems, and safety interlocks. The seller recommends engaging a certified biomedical technician or medical equipment specialist to perform a full operational check and calibration prior to clinical use.

Service History

The Cosman G4 RF Lesion Generator (Serial # available upon request) has been maintained in accordance with manufacturer guidelines throughout its operational life. The device has undergone routine preventive maintenance by certified Boston Scientific service technicians, including annual calibration checks, electrical safety testing, and software updates. Historical service records indicate the following key maintenance activities: 1) Initial installation and commissioning by Boston Scientific Field Service Engineer in Q2 2022; 2) Annual preventive maintenance in Q2 2023, including replacement of cooling fans and thermal paste application; 3) Software update to v4.2 in Q3 2023 to address minor GUI improvements and security patches; 4) Replacement of RF output module #3 in Q1 2024 due to intermittent impedance monitoring issues; 5) Electrical safety testing performed in Q2 2024 with results within manufacturer specifications.

Packing List

The Cosman G4 RF Lesion Generator (Model RFG-4) is packaged for secure transport with the following components included: 1) Main RF lesion generator unit with integrated touchscreen; 2) Mobile cart with locking wheels and integrated storage for accessories; 3) Power cord (100-240V AC, 50/60Hz); 4) Grounding cable with alligator clip; 5) RF cable set (4x individual cables for monopolar operation); 6) User manual and quick reference guide; 7) Service documentation binder with calibration certificates and maintenance records; 8) Cosman RF electrode holder (part # RF-EH-1); 9) Cosman RF calibration kit (part # RF-CAL-KIT); 10) Sterile drape set for surgical field preparation; 11) Packing materials including foam inserts, protective covers, and shipping crate. All components are secured within a double-walled corrugated shipping container with internal cushioning to prevent damage during transit. The packaging meets ISTA 1A standards for medical equipment transport.

Additional Information

The Cosman G4 RF Lesion Generator (Model RFG-4) is a Class II medical device cleared by the FDA under 510(k) number K173475 and CE marked under the Medical Devices Directive 93/42/EEC. The device is specifically designed for radiofrequency lesion generation in neurosurgical procedures, including but not limited to thalamotomy for essential tremor, pallidotomy for Parkinson's disease, cingulotomy for chronic pain management, and other stereotactic neurosurgical interventions. Clinical benefits include precise lesion control with minimal thermal spread, reduced procedural time compared to traditional methods, and improved patient outcomes through targeted ablation of pathological neural tissue. The system integrates seamlessly with existing neurosurgical workflows, including compatibility with stereotactic frames (e.g., Leksell, CRW) and neuronavigation systems (e.g., Brainlab, Medtronic StealthStation). Regulatory compliance includes adherence to IEC 60601-1 (Medical Electrical Equipment Safety), IEC 60601-1-2 (EMC Standards), and ISO 13485 (Quality Management Systems). The device has been utilized in over 500 clinical procedures across major neurosurgical centers worldwide, with documented success rates exceeding 92% for tremor reduction in essential tremor patients. Key technical specifications include a maximum lesion temperature of 90°C, lesion duration range of 30-120 seconds, and impedance monitoring resolution of 1Ω. The system supports both monopolar and bipolar RF delivery modes, with configurable lesion parameters stored in user-defined protocols. Clinical studies have demonstrated lesion volumes ranging from 2-8mm³ depending on electrode configuration and power settings. The device is compatible with all standard neurosurgical electrodes and grounding systems, with additional integration options for microelectrode recording systems.