Medtronic Neurosurgery: The Medtronic StrataMR adjustable valves and shunts are designed to provide continuous cerebrospinal fluid (CSF) flow from the ventricles of the brain into the right atrium of the heart or the peritoneal cavity. The design enables the physician to non-invasive adjust valve pressure/performance level pre- and post-implantation by using magnetic adjustment tools without the need for radiographic confirmation. After surgical implantation, the Medtronic Neurosurgery StrataMR valves provide a non-invasive method to address changing patient needs in the management of hydrocephalus. The valve design enables the physician to adjust the valve pressure/performance level using the Medtronic StrataMR Adjustment Tools. The StrataMR valves are intended to maintain performance level setting under magnetic resonance imaging (MRI) exposure when scanned in accordance with the MRI conditions in the labeling. The StrataMR valves, small and regular, provide the full range of performance levels: 0.5, 1.0, 1.5, 2.0, and 2.5. The currently set performance level is discernible through use of the Indicator Tool or by x-ray (for corresponding settings, refer to figure 6). The dome is designed to allow needle puncture via a 25-gauge or smaller noncoring needle. The StrataMR valve can be flushed in either the distal or proximal direction by percutaneous finger pressure. Occluders are located proximally and distally to the central reservoir on the StrataMR valve regular and only distally on the small model to facilitate selective flushing.

Recall number

Z-1702-2017

Recalling firm

Medtronic Neurosurgery

Product

The Medtronic StrataMR adjustable valves and shunts are designed to provide continuous cerebrospinal fluid (CSF) flow from the ventricles of the brain into the right atrium of the heart or the peritoneal cavity. The design enables the physician to non-invasive adjust valve pressure/performance level pre- and post-implantation by using magnetic adjustment tools without the need for radiographic confirmation. After surgical implantation, the Medtronic Neurosurgery StrataMR valves provide a non-invasive method to address changing patient needs in the management of hydrocephalus. The valve design enables the physician to adjust the valve pressure/performance level using the Medtronic StrataMR Adjustment Tools. The StrataMR valves are intended to maintain performance level setting under magnetic resonance imaging (MRI) exposure when scanned in accordance with the MRI conditions in the labeling. The StrataMR valves, small and regular, provide the full range of performance levels: 0.5, 1.0, 1.5, 2.0, and 2.5. The currently set performance level is discernible through use of the Indicator Tool or by x-ray (for corresponding settings, refer to figure 6). The dome is designed to allow needle puncture via a 25-gauge or smaller noncoring needle. The StrataMR valve can be flushed in either the distal or proximal direction by percutaneous finger pressure. Occluders are located proximally and distally to the central reservoir on the StrataMR valve regular and only distally on the small model to facilitate selective flushing.

Status

Terminated

Initiated

2017-02-22

Posted

2017-04-07

Terminated

2017-09-19

Reason

Incorrect valve rotor orientation due to misalignment and/or off-center positioning of the StrataMR Locator Tool: When the StrataMR valve is set in the incorrect orientation, higher valve opening pressures result leading to a corresponding underdrainage in CSF fluid performance. This condition may result in the following adverse health consequences: ventriculomegaly, headaches, nausea, vomiting and lethargy. If left untreated, underdrainage has the potential to lead to coma and death.

Root cause

Device Design

Action

The firm has initiated a CAPA and issued notification via letter to US Customers on February 22, 2017. As of the date of the report (2/22/17) the firm was still in process of notifying foreign customers. Recipients are instructed to: 1) Cease use of the listed product, 2) Account for number of product units implanted or discarded and return any unused units by completing an attached individualized customer product accountability form provided in the letter, 3) If any of the indicated products have been implanted in patients, to adjust the valves according to instructions listed in an included attachment. Recipients are asked to fax a customer acknowledgment response form or scan/take a picture of the form and email to rs.mnsfca@medtronic.com with "StrataMR Recall" in the subject line.

Quantity

2622 units (US = 1796, outside US =826)

Distribution

Product was distributed throughout the US and to Australia, Belgium, Canada, Finland, Germany, Hong Kong, Israel, Italy, Japan, New Zealand, Norway, Poland, Portugal, the Russian Federation, Singapore, Spain, Sweden, Switzerland, Turkey, and the UK.

Lot, serial or model codes

Worldwide Catalog Number 42955, VALVE 42955 FP-STRATAMR SMALL E03581, E04352, E05120, E05121, E06139, E06476, E09475, E11656, E12556, E12753, E13482, E13483, E13484, E13641, E14518, E14519, E18555, E18556, E18557, E18558, E19670, E19866 Catalog Number 42965, VALVE 42965 FP-STRATAMR REGULAR E03582, E04353, E06015, E06016, E06138, E06412, E09619, E11655, E12041, E12265, E12266, E12950, E12951, E12952, E12953, E13485, E13698, E18559, E18560, E19084, E19540, E19671, E19867, E22208, E22242 Catalog Number 46955, ASSY 46955 FP SHUNT STRATAMR SMALL E12752, E12932, E13573, E16247 Catalog Number 46960, SHUNT 46960 SNAP STRATAMR SMALL E12273, E12780, E12934, E14748 Catalog Number 46965, ASSY 46965 FP SHUNT STRATAMR REGULAR E12779, E12933, E13576, E14270 Catalog Number 46970, SHUNT 46970 SNAP STRATAMR REG E12272, E12620, E12935

510(k) numbers

["K152700"]

PMA numbers

not on file

Product code

JXG

Firm FEI

3015531529

Firm city

Goleta

Firm state

CA

Firm country

not on file

Cite as

FDA Medical Device Recalls (openFDA) (U.S. Food and Drug Administration (openFDA)), device-recall-0001-of-0001.json.zip, sha256 b87518bfe2e8, published 2026-09-28

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