Model note · CSF Shunt
Integra Codman Hakim Programmable Valve
The Codman Hakim Programmable Valve is an implantable shunt valve that drains cerebrospinal fluid to treat hydrocephalus, implanted by neurosurgeons and adjusted in clinic without further surgery. A ruby ball and cone seat held by a calibrated steel spring sets the opening pressure, and an external programmer turns a stepper motor inside the valve with a coded magnetic signal to choose one of 18 settings from 30 to 200 mmH2O.
The model
Maker, model and type.
- Maker
- Integra LifeSciences (Codman neurosurgery portfolio)
- Model
- Codman Hakim Programmable Valve (CHPV)
- Device type
- CSF Shunt
- Main document
- Open the public document
Key specifications
What the public record says.
| Item | Value | Source |
|---|---|---|
| Pressure settings | 18 settings, 30 to 200 mmH2O (294 to 1960 Pa) in 10 mmH2O steps | Source |
| Valve mechanism | Flat 316L stainless steel spring with pillar and micro-adjustable telescoping fulcrum; titanium chassis; synthetic ruby ball and cone | Source |
| Operating pressure tolerance (L-P configuration) | Within 14 mmH2O for settings 30 to 120 and 19 mmH2O for 130 to 200, tested per EN ISO 7197 | Source |
| Programming depth | Programmer adjusts the valve up to an average depth of 2 cm; implant with no more than 1 cm of tissue over the mechanism | Source |
| MRI conditions | MR Conditional: 3 T or less, spatial gradient 58 T/m or less, whole body SAR 4 W/kg; under 2.8 C rise after 15 min; artefact about 40 mm at 3 T | Source |
| SiphonGuard secondary pathway resistance | 1 cmH2O/mL/hour | Source |
| Approved programmers | Codman Hakim Programmer or Codman VPV System (catalogue nos. 82-3190, 82-3190R, 82-3192, 82-3192R named) | Source |
| Regulatory class | FDA Class II CSF shunt, 21 CFR 882.5550, product code JXG | Source |
Recalls
Known FDA recalls.
- Z-1354-20212021-03-17
Codman Hakim Bactiseal shunt system peritoneal catheter mislabelled; catheter lacked required holes and markings.
FDA record
Safety
Safety warnings from the record.
- Strong magnetic fields, including MRI and common magnets over 80 gauss, may change the valve setting. Source
- Valves are supplied without a programmed pressure and must be set before implantation. Source
- Over-drainage can cause subdural haematoma and slit ventricles; postural headache relieved by lying down may be a sign. Source
- Contraindicated in patients on anticoagulants or with a bleeding diathesis, and implantation should be delayed if infection is present. Source
- Handle silicone parts with shod forceps and keep them off linty surfaces; cuts can rupture components and silicone attracts particles. Source
Sources
Where this note comes from.
- Integra Codman Hakim Programmable Valve L-P instructions for use, Rev. E
- Integra Hakim Programmable Valve System brochure
- FDA 510(k) K221840 summary, Hakim Precision and Programmable Valves
- openFDA MAUDE problem counts, brand HAKIM
- openFDA recalls, Hakim
Not covered: The IFU used is the lumbo-peritoneal (L-P) version, so pressure-flow tolerances may differ for ventricular configurations; the Codman programmer and VPV manuals with their on-screen messages were not reviewed, so no error codes are given.
BMEssentia knowledge drafted from public information, reviewed by Hasan Khaled Ismail on 2026-10-24. Always follow the manufacturer's instructions for use and service manual.
CSF Shunt