MEDTRONIC STRATA NSC LUMBOPERITONEAL VALVE AND SHUNT SYSTEM
Device Facts
| Record ID | K123524 |
|---|---|
| Device Name | MEDTRONIC STRATA NSC LUMBOPERITONEAL VALVE AND SHUNT SYSTEM |
| Applicant | Medtronic Neurosurgery |
| Product Code | JXG · Neurology |
| Decision Date | Feb 13, 2013 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 882.5550 |
| Device Class | Class 2 |
| Attributes | Therapeutic, Real-World Evidence |
Real-World Evidence
| Submission | Device | Sponsor | RWD Sources | RWE Use Summary | Key Tags |
|---|---|---|---|---|---|
| K123524 · Feb 13, 2013 | MEDTRONIC STRATA NSC LUMBOPERITONEAL VALVE AND SHUNT SYSTEM | Medtronic Neurosurgery | Retrospective clinical review of patient data; Prospective clinical follow-up data | The retrospective clinical review was used to demonstrate that physicians can consistently palpate the valve, determine flow direction, and accurately read pressure settings using the StrataVarius device in a clinical setting, supported by radiographic verification. | Retrospective clinical review; Clinical practice; Device performance; Palpation accuracy |
Clinical Evidence
| Study Design | Population | Comparator | Key Endpoints |
|---|---|---|---|
| Retrospective clinical review of data; Retrospective clinical review with prospective follow-ups | Patients undergoing lumboperitoneal shunt applications | Not applicable for this study | Ability of physicians to palpate the valve, determine direction of flow, and accurately read pressure level settings |
Indications for Use
The Strata NSC Lumboperitoneal Shunt System provides continued cerebrospinal fluid (CSF) flow from the subarachnoid space into the peritoneal cavity. The Strata NSC Lumboperitoneal Valve allows the physician to non-invasively adjust the pressure/flow performance level pre- and post-implantation in order to address changing patient needs. The Strata NSC Lumboperitoneal Shunt System is designed for management of communicating hydrocephalus and may be used in the treatment of idiopathic intracranial hypertension (pseudotumor cerebri) when shunting is an option.
Device Story
System consists of lumbar/peritoneal catheters and adjustable valve; used for CSF drainage. Physician uses external magnetic adjustment tools to non-invasively modify valve pressure/flow settings pre- or post-implantation to accommodate patient needs. Catheters feature length markers and strain relief to prevent kinking. Device managed by neurosurgeons in clinical settings. Output is regulated CSF flow; clinical benefit is management of hydrocephalus or intracranial hypertension. Performance verified via ovine model (migration/adjustment) and retrospective clinical review confirming valve palpation, flow direction identification, and pressure setting verification using StrataVarius device with radiographic confirmation.
Clinical Evidence
Retrospective clinical review with prospective follow-ups. Evaluated physician ability to palpate valve, determine flow direction, and accurately read pressure settings using StrataVarius device and radiographic verification. Ovine model testing confirmed valve adjustment capability and lack of migration post-implantation.
Technological Characteristics
System includes lumbar/peritoneal catheters and magnetic adjustable valve. Features include catheter length markers (5 cm intervals) and strain relief. Non-invasive magnetic adjustment mechanism. No changes to materials or design from predicate. Standalone mechanical system.
Indications for Use
Indicated for patients with communicating hydrocephalus or idiopathic intracranial hypertension (pseudotumor cerebri) requiring cerebrospinal fluid (CSF) shunting from the lumbar subarachnoid space to the peritoneal cavity.
Regulatory Classification
Identification
A central nervous system fluid shunt is a device or combination of devices used to divert fluid from the brain or other part of the central nervous system to an internal delivery site or an external receptacle for the purpose of relieving elevated intracranial pressure or fluid volume (e.g., due to hydrocephalus). Components of a central nervous system shunt include catheters, valved catheters, valves, connectors, and other accessory components intended to facilitate use of the shunt or evaluation of a patient with a shunt.
Predicate Devices
- PS Medical Strata NSC Lumboperitoneal Valve and Shunt System (K091312)
- PS Medical CSF-Lumboperitoneal Shunt (K831396)