42955MR: Medtronic StrataMR II Adjustable Valve, Small

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Medtronic 42955MR StrataMR II Adjustable Valve Small

The Medtronic StrataMR II Adjustable Valve is designed for controlled cerebrospinal fluid (CSF) drainage in patients with hydrocephalus. This small-profile valve offers precise pressure regulation with noninvasive adjustability using Medtronic’s external programming system. Its magnet-resistant design reduces the risk of accidental reprogramming during MRI procedures, supporting stable performance in high-imaging environments. With its biocompatible construction and consistent flow regulation, the StrataMR II is suitable for both initial shunt placements and revision procedures. The small size offers surgical flexibility and patient-specific anatomical compatibility, making it an excellent choice for neurosurgeons seeking reliability and adaptability in long-term CSF management.

Product Code: 42955MR

• Programmable Pressure Valve
• Small Valve Profile
• Magnet-Resistant Adjustment Mechanism
• MRI Conditional

Contents

• Adjustable Valve (StrataMR II, Small)

Features

• Enables noninvasive pressure setting adjustments
• Designed for use with Medtronic adjustment tools
• Minimizes MRI-related pressure variability
• Compact profile suitable for anatomical constraints

Sterilization

• Device Packaged as Sterile: Yes
• Requires Sterilization Prior to Use: No
• Single-Use, Disposable

Additional Details

• Brand: Medtronic
• Category: Neurosurgery
• Type: Hydrocephalus Shunt Valve
• FDA Product Code: JXG
• FDA Product Code Name: Shunt, central nervous system and component
• GMDN Term Code: 35965
• GMDN Term Name: Cerebrospinal fluid shunt valve
• GMDN Term Definition: An implantable device intended to function as part of a lumboperitoneal, ventriculoperitoneal or ventriculoatrial shunt to regulate the pressure and flow level of cerebrospinal fluid (CSF) from the lumbar spine or brain to the peritoneum/heart right atrium in the management of increased intracranial pressure (e.g., caused by hydrocephalus). It consists of a mechanical valve with catheter connections and is made of synthetic polymer and/or metallic materials; it does not incorporate a port or reservoir. It typically opens at a pre-set pressure and may be non-invasively adjusted using a dedicated programmer.

Medtronic’s former Minimally Invasive Therapies Group (MITG), now part of the Surgical and Endoscopy Operating Units within the Medical Surgical Portfolio, focuses on advanced technologies that support minimally invasive procedures across general, bariatric, colorectal, and thoracic surgery. The portfolio includes a wide range of surgical stapling systems like the Signia and Endo GIA platforms, energy devices such as the LigaSure vessel sealing system and Valleylab electrosurgical generators, as well as a robust line of trocars, sutures, and advanced instrumentation. MITG also includes market-leading solutions in gastrointestinal diagnostics and respiratory monitoring, including the Bravo pH monitoring system and the Puritan Bennett ventilators. Medtronic’s innovations in this space aim to improve surgical precision, reduce complications, and enhance recovery through technology-driven, value-based care.

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