(91 days)
No
The description focuses on mechanical and hydraulic principles for pressure regulation and CSF drainage, with no mention of AI or ML components.
Yes
The device is described as an "implantable device that provides constant intraventricular pressure and drainage of CSF for the management of hydrocephalus," which directly aims to treat a medical condition.
No
The device is an implantable shunting device designed to manage hydrocephalus by regulating intraventricular pressure and draining CSF. It does not diagnose conditions.
No
The device description clearly states it is an "implantable device" and describes physical components like a "ruby ball-in-cone principle" and a "pressure inducing spring design," indicating it is a hardware device.
Based on the provided information, the Codman Certas Plus Programmable Valve is not an In Vitro Diagnostic (IVD) device.
Here's why:
- Intended Use: The intended use is to provide constant intraventricular pressure and drainage of CSF for the management of hydrocephalus. This is a therapeutic intervention performed directly on the patient's body.
- Device Description: The device is an implantable valve designed to shunt cerebrospinal fluid. It is a mechanical device that regulates fluid flow within the body.
- Lack of In Vitro Activity: IVD devices are used to examine specimens derived from the human body (like blood, urine, tissue) in vitro (outside the body) to provide information for diagnosis, monitoring, or treatment. This device does not perform any such analysis of bodily fluids outside the body.
The device is clearly an implantable medical device used for the treatment of a medical condition (hydrocephalus) by directly interacting with the patient's internal systems.
N/A
Intended Use / Indications for Use
The Codman Certas Plus Programmable Valve is an implantable device that provides constant intraventricular pressure and drainage of CSF for the management of hydrocephalus.
Product codes (comma separated list FDA assigned to the subject device)
JXG
Device Description
This submission includes two additional configurations of the Codman Certas Plus Programmable Valve: Certas Plus Inline Small and Certas Plus Right Angle. The Codman Certas Plus Programmable Valves are sterile, single use, implantable devices designed for shunting cerebrospinal fluid (CSF) for the treatment of hydrocephalus.
The Codman Certas Plus Programmable Valve is a pressure-regulating valve utilizing the ruby ball-in-cone principle with a pressure inducing spring design. Intraventricular pressure is maintained by the ball and cone valve seat design. As the differential pressure across the shunt increases, the ball further displaces from the cone, through which CSF flows, thereby increasing flow and re-establishing the selected pressure. The ball is manufactured of synthetic ruby, as is the matching cone. Together these components provide a precise fit for regulating the flow of CSF through the valve.
The valve is available with 8 different performance settings for constant intraventricular pressure and drainage of CSF. Seven (7) of the settings provide a change in operating pressure, with a range of 25 to 215 mmH2O. The eighth (8) setting provides a minimum opening pressure of '400' mmH20, thus allowing a physician to turn the valve "virtually off" without the need to surgically remove the valve to limit flow. The pressure of the valve is set preoperatively and can be noninvasively changed postimplantation by using the Codman Certas Tool Kit.
Mentions image processing
Not Found
Mentions AI, DNN, or ML
Not Found
Input Imaging Modality
Not Found
Anatomical Site
Not Found
Indicated Patient Age Range
Not Found
Intended User / Care Setting
Not Found
Description of the training set, sample size, data source, and annotation protocol
Not Found
Description of the test set, sample size, data source, and annotation protocol
Not Found
Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)
Verification Testing
The following table summarizes the design verification activities. All samples in design verification testing met predefined acceptance criteria, and the proposed devices passed design verification test activities. These test results, in conjunction with the similarities to the predicate device, demonstrate that the Certas Plus Programmable Inline Small and Right Angle Valves are substantially equivalent to the predicate device.
Test: Shunt Safety and Performance Testing
Test Method Summary: Testing per ISO 7197:2009 standard for shunt safety and performance including the following clauses:
• 4.2. Radiopacity
• 4.3. Biocompatibility
• 4.4. Resistance to leakage
• 4.5. Control of the implanted shunt
• 4.6. Pressure-flow characteristics
• 4.7. Identification of shunts in vivo
• 4.8. Ability to withstand overpressure
• 4.9. Dynamic breaking strength
• 4.10. Behavior under MR imaging conditions
• 4.11. Bursting pressure
• 5.1.1. Reflux performance
• 8.2.d. Method for puncture and indication of how often puncturing is possible
Results: PASS
Test: Shelf Life Study
Test Method Summary: Testing per ISO 7197:2009 standard for shunt safety and performance following accelerated aging. Clauses related to mechanical performance of the valve were tested to specifically stress the valve's silicone housings.
Results: PASS
Test: Sterilization
Test Method Summary: Testing per ISO 17665-1: 2006 and ISO 17665-2: 2009 for sterilization of healthcare products, moist heat.
• Confirm assembly process does not create a higher risk of bioburden.
• Test ability of Certas Plus Inline valve sterilization cycle to sterilize the subject devices.
○ Natural Product Resistance Test
○ Microbial Challenge
Results: PASS
Test: Transit Testing
Test Method Summary: ISO 11067-1: 2009 and ISO11607-2: 2006: Packaging for Terminally Sterilized Medical Devices
Confirm that unit box and double blister prevents damage to the product in normal conditions of transit, handling, and storage in accordance with ISTA 3A. Vibration, drop, and environmental conditioning o (Packaged-Products for Parcel Delivery System Shipments 70kg (150 lbs) or Less (standard, small, flat or elongated).
Results: PASS; Cosmetic defects observed on unit box with no effect on packaging or valve performance.
Test: Valve Fixation Testing
Test Method Summary: Confirm that silicone strength of Certas Plus Inline Small valve suture flange is no worse than the predicate device. Test compatibility of bone screw fixation with Certas Plus Right Angle valve per ISO 7197:2009 method of Dynamic Breaking Strength.
Results: PASS
Test: Valve Flexibility Testing
Test Method Summary: Measure force to flex subject devices to known curvature compared to predicate device.
Results: PASS; Certas Plus Inline Small valve is more flexible and Certas Plus Right Angle valve is equivalent to predicate device.
Test: Adjustment and Indication Testing
Test Method Summary: Verify ability to use Codman CERTAS toolkits to adjust and indicate a valve.
Results: PASS
Validation Testing Simulated Post-Implantation Use
Codman conducted validation testing with clinicians which included indication and adjustment post-implantation using simulated skin thicknesses.
Test: System Safety Study
Test Method Summary: Clinicians evaluated the maximum acceptable rate for false positives and maximum success rate for completing a full procedure. Testing conducted on a simulated head model with variable valve orientation.
Results: PASS
Test results demonstrated that the acceptance criteria were met; therefore, the Codman Certas Plus Programmable Inline Small and Right Angle Valves conform to the expected device performance and intended use. Results of the verification and validation testing have demonstrated that the proposed valves are substantially equivalent to the predicate Codman Certas Plus Programmable Valve, and that the modifications do not impact the safety or effectiveness of the proposed valves.
Magnetic Resonance Imaging
The metallic components of the proposed Certas Plus Inline Small Valve and Certas Plus Right Angle Valve are the same as the current Certas Plus Programmable Valve. Since there were no changes to the metallic components within the valve assembly, there are no additional risks associated with the MRI safety of the proposed valves.
Biocompatibility Testing
The materials of the proposed Certas Plus Inline Small Valve and Certas Plus Right Angle Valve are the same as the current Certas Plus Programmable Valve and are sterilized using the same sterilization method as the predicate devices in the Certas Plus Programmable Valve product family.
Animal Studies
No animal studies were required as appropriate verification and validation of the design modifications were achieved based on the similarities of the proposed devices to the predicate device, and from result of bench testing.
Clinical Studies
No clinical studies were required as appropriate verification and validation of the design modifications were achieved based on the similarities of the proposed devices to the predicate device, and from result of bench testing.
Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)
Not Found
Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.
Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.
Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).
Not Found
§ 882.5550 Central nervous system fluid shunt and components.
(a)
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.(b)
Classification. Class II (performance standards).
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
November 20, 2018
Integra LifeSciences Corporation Nancy MacDonald Regulatory Affairs Manager 11 Cabot Boulevard Mansfield. Massachusetts 02048
Re: K182265
Trade/Device Name: Codman Certas Plus Programmable Valve (Certas Plus Inline Small and Certas Plus Right Angle) Regulation Number: 21 CFR 882.5550 Regulation Name: Central Nervous System Fluid Shunt and Components Regulatory Class: Class II Product Code: JXG Dated: August 21, 2018 Received: August 22, 2018
Dear Nancy MacDonald:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal
1
statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.html; good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803). please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Xiaolin Zheng -S
Carlos L. Peña, PhD, MS for Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
2
Indications for Use
510(k) Number (if known) K182265
Device Name
Codman Certas Plus Programmable Valve (Certas Plus Inline Small and Certas Plus Right Angle)
Indications for Use (Describe)
The Codman Certas Plus Programmable Valve is an implantable device that provides constant intraventricular pressure and drainage of CSF for the management of hydrocephalus.
Type of Use (Select one or both, as applicable)
| For activities identified in 6 NYCRR Part 360, Series 11 |
|---|
| For other Tier I composting activities |
X | Prescription Use (Part 21 CFR 801 Subpart D)
| | Over-The-Counter Use (21 CFR 801 Subpart C)
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3
510(k) Summary
I. Submitter Integra LifeSciences Production Corp. 11 Cabot Blvd Mansfield, MA 02048
On behalf of: Medos International SARL Chemin-Blanc 38 CH 2400 LeLocle, Switzerland
Primary Contact: Nancy MacDonald Phone: (781) 971-5664
Secondary Contact: Jocelyn Raposo Phone: (781) 971-5688
Date of Preparation: November 1, 2018
II. Device(s)
| 510(k) Number | K182265 |
|---|---|
| Device Proprietary Name | Codman Certas Plus Programmable Valve (Certas Plus |
| Inline Small and Certas Plus Right Angle) | |
| Common Name | Hydrocephalus Shunt |
| Classification Name | Central Nervous System Fluid Shunt and Components |
| (21 CFR 882.5550) | |
| Regulatory Classification | II |
| Product Code | JXG |
III. Predicate
The predicate and reference devices for this submission are:
Device(s)
| | 510(k)
Number | Date Cleared | Title |
|-----------|------------------|---------------|-------------------------------------------------------------|
| Predicate | K152152 | Oct. 27, 2015 | Codman Certas Plus
Programmable Valve |
| Reference | K053107 | Jan. 19, 2006 | Codman Hakim Programmable
Valve with/without SiphonGuard |
IV. Device Description(s)
This submission includes two additional configurations of the Codman Certas Plus Programmable Valve: Certas Plus Inline Small and Certas Plus Right Angle. The Codman Certas Plus Programmable Valves are sterile,
4
single use, implantable devices designed for shunting cerebrospinal fluid (CSF) for the treatment of hydrocephalus.
The Codman Certas Plus Programmable Valve is a pressure-regulating valve utilizing the ruby ball-in-cone principle with a pressure inducing spring design. Intraventricular pressure is maintained by the ball and cone valve seat design. As the differential pressure across the shunt increases, the ball further displaces from the cone, through which CSF flows, thereby increasing flow and re-establishing the selected pressure. The ball is manufactured of synthetic ruby, as is the matching cone. Together these components provide a precise fit for regulating the flow of CSF through the valve.
The valve is available with 8 different performance settings for constant intraventricular pressure and drainage of CSF. Seven (7) of the settings provide a change in operating pressure, with a range of 25 to 215 mmH2O. The eighth (8) setting provides a minimum opening pressure of '400' mmH20, thus allowing a physician to turn the valve "virtually off" without the need to surgically remove the valve to limit flow. The pressure of the valve is set preoperatively and can be noninvasively changed postimplantation by using the Codman Certas Tool Kit.
The Indications for Use statement of the proposed device remains identical
| Equivalence Comparison | Indications for Use |
|---|---|
| Codman Certas Plus Programmable Valve | |
| (Predicate K152152) | The Codman Certas Plus Programmable |
| Valve is an implantable device that | |
| provides constant intraventricular | |
| pressure and drainage of CSF for the | |
| management of hydrocephalus. | |
| Codman Hakim Programmable Valve | |
| (Reference K053107) | The Codman Hakim Programmable Valves |
| (CHPV) are implantable devices that provide | |
| constant intraventricular pressure and | |
| drainage of CSF for the management of | |
| hydrocephalus. | |
| Codman Certas Plus Inline Small and | |
| Certas Plus Right Angle Programmable | |
| Valves | |
| (Subject of This Submission - K182265) | The Codman Certas Plus Programmable |
| Valve is an implantable device that | |
| provides constant intraventricular pressure | |
| and drainage of CSF for the management | |
| of hydrocephalus. |
V. Indications for Use
to the predicate device.
VI. Comparison
to Predicate and Reference Devices
The Codman Certas Plus Inline Small and Right Angle Programmable Valves are substantially equivalent to the predicate Codman Certas Plus Programmable Valve, which has been cleared under K152152 on October 27, 2015. The Certas Plus Inline Small and Right Angle Valves have the
5
same intended use, design principles, operational principles and materials as the predicate Certas Plus Programmable Valve. Compared to the predicate device, the Codman Certas Plus Inline Small and Right Angle valves include the modifications listed in Table 1.
The Certas Plus Right Angle Valve is also similar in design to the reference device, the Codman Hakim Programmable Valve, Right Angle (K053107).
| Table 1. Proposed Modifications for the Codman Certas Plus Programmable
| Valve | ||
|---|---|---|
| Device | Modification | Rationale |
| Certas Plus | ||
| Inline Small | • Smaller silicone housing and | |
| reservoir | ||
| • Curved silicone housing | ||
| • Angled proximal connector | ||
| • Angled distal connector | ||
| (applicable to valves without | ||
| unitized catheters and valves | ||
| without SiphonGuard) | ||
| • Modified silicone backing to | ||
| accommodate silicone | ||
| housing | ||
| • Needle Guard material | ||
| changed to Polyethersulfone | ||
| (PES). PES is currently used | ||
| for other Certas Plus parts | ||
| • Modification to the inner | ||
| blister packaging | Minor modifications are being | |
| introduced to respond to market | ||
| demand without changing the | ||
| fundamental scientific technology | ||
| or the intended use. | ||
| Certas Plus | ||
| Right Angle | • Right angle silicone housing | |
| • Right angle proximal | ||
| connector | ||
| • Angled distal connector | ||
| (applicable to valves without | ||
| unitized catheters and valves | ||
| without SiphonGuard) | ||
| • Modified silicone backing to | ||
| accommodate silicone | ||
| housing | ||
| • Needle Guard material | ||
| changed to Polyethersulfone | ||
| (PES). PES is currently used | ||
| for other Certas Plus | ||
| components. | Minor modifications are being | |
| introduced to respond to market | ||
| demand without changing the | ||
| fundamental scientific technology | ||
| or the intended use. | ||
| A right-angle configuration is | ||
| currently available with the | ||
| legally marketed reference device, | ||
| the Codman Hakim | ||
| Programmable Valve (K053107). | ||
| Labeling | Revised the labeling to include | |
| the Certas Plus Inline Small and | ||
| Certas Plus Right Angle | ||
| Valves. | ||
| Added details to MRI Safety | Labeling updates to reflect the | |
| proposed valve configurations | ||
| with no changes to the indications | ||
| or intended use. | ||
| Additional details requested from | ||
| Table 1. Proposed Modifications for the Codman Certas Plus Programmable | ||
| Valve | ||
| Device | Modification | Rationale |
| Information') to clarify how the | ||
| valve was MR tested. |
6
VII. Performance Data
The following performance data is provided in support of the substantial equivalence determination.
Verification Testing
The following table summarizes the design verification activities. All samples in design verification testing met predefined acceptance criteria, and the proposed devices passed design verification test activities. These test results, in conjunction with the similarities to the predicate device, demonstrate that the Certas Plus Programmable Inline Small and Right Angle Valves are substantially equivalent to the predicate device.
| Table 2: Design Verification Activities – Codman Certas Plus Inline Small and
| Right Angle Programmable Valves | ||
|---|---|---|
| Test | Test Method Summary | Results |
| Shunt Safety | ||
| and | ||
| Performance | ||
| Testing | Testing per ISO 7197:2009 standard for shunt safety | |
| and performance including the following clauses: | ||
| • 4.2. Radiopacity | ||
| • 4.3. Biocompatibility | ||
| • 4.4. Resistance to leakage | ||
| • 4.5. Control of the implanted shunt | ||
| • 4.6. Pressure-flow characteristics | ||
| • 4.7. Identification of shunts in vivo | ||
| • 4.8. Ability to withstand overpressure | ||
| • 4.9. Dynamic breaking strength | ||
| • 4.10. Behavior under MR imaging | ||
| conditions | ||
| • 4.11. Bursting pressure | ||
| • 5.1.1. Reflux performance | ||
| • 8.2.d. Method for puncture and indication of | ||
| how often puncturing is possible | PASS | |
| Shelf Life | ||
| Study | Testing per ISO 7197:2009 standard for shunt safety | |
| and performance following accelerated aging. Clauses | ||
| related to mechanical performance of the valve were | ||
| tested to specifically stress the valve's silicone | ||
| housings. | PASS | |
| Sterilization | Testing per ISO 17665-1: 2006 and ISO 17665-2: | |
| 2009 for sterilization of healthcare products, moist | ||
| heat. | ||
| • Confirm assembly process does not create a | ||
| higher risk of bioburden. | ||
| • Test ability of Certas Plus Inline valve | ||
| sterilization cycle to sterilize the subject | ||
| devices. | ||
| ○ Natural Product Resistance Test | ||
| ○ Microbial Challenge | PASS |
7
| Transit
Testing | ISO 11067-1: 2009 and ISO11607-2:
2006: Packaging for Terminally Sterilized Medical
Devices
Confirm that unit box and double blister prevents
damage to the product in normal conditions of
transit, handling, and storage in accordance with
ISTA 3A. Vibration, drop, and environmental conditioning
o (Packaged-Products for Parcel Delivery
System Shipments 70kg (150 lbs) or Less
(standard, small, flat or elongated). | PASS;
Cosmetic
defects observed
on unit box with
no effect on
packaging or
valve
performance. |
|--------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------|
| Valve
Fixation
Testing | Confirm that silicone strength of Certas Plus
Inline Small valve suture flange is no worse
than the predicate device. Test compatibility of bone screw fixation with
Certas Plus Right Angle valve per ISO
7197:2009 method of Dynamic Breaking
Strength. | PASS |
| Valve
Flexibility
Testing | Measure force to flex subject devices to known
curvature compared to predicate device. | PASS;
Certas Plus
Inline Small
valve is more
flexible and
Certas Plus
Right Angle
valve is
equivalent to
predicate
device. |
| Adjustment
and
Indication
Testing | Verify ability to use Codman CERTAS toolkits to
adjust and indicate a valve. | PASS |
Validation Testing Simulated Post-Implantation Use
Codman conducted validation testing with clinicians which included indication and adjustment post-implantation using simulated skin thicknesses.
| Table 3: Design Validation Activities – Codman Certas Plus Inline Small and
| Right Angle Programmable Valves | ||
|---|---|---|
| Test | Test Method Summary | Results |
| System | ||
| Safety Study | Clinicians evaluated the maximum acceptable rate for | |
| false positives and maximum success rate for completing a | ||
| full procedure. Testing conducted on a simulated head | ||
| model with variable valve orientation. | PASS |
Test results demonstrated that the acceptance criteria were met; therefore, the Codman Certas Plus Programmable Inline Small and Right Angle Valves conform to the expected device performance and intended use. Results of the verification and validation testing have demonstrated that the proposed valves are substantially equivalent to the predicate Codman
8
Certas Plus Programmable Valve, and that the modifications do not impact the safety or effectiveness of the proposed valves.
Magnetic Resonance Imaging
The metallic components of the proposed Certas Plus Inline Small Valve and Certas Plus Right Angle Valve are the same as the current Certas Plus Programmable Valve. Since there were no changes to the metallic components within the valve assembly, there are no additional risks associated with the MRI safety of the proposed valves.
Biocompatibility Testing
The materials of the proposed Certas Plus Inline Small Valve and Certas Plus Right Angle Valve are the same as the current Certas Plus Programmable Valve and are sterilized using the same sterilization method as the predicate devices in the Certas Plus Programmable Valve product family.
Animal Studies
No animal studies were required as appropriate verification and validation of the design modifications were achieved based on the similarities of the proposed devices to the predicate device, and from result of bench testing.
Clinical Studies
No clinical studies were required as appropriate verification and validation of the design modifications were achieved based on the similarities of the proposed devices to the predicate device, and from result of bench testing.
Conclusion
Based upon the intended use, design, materials, function, comparison to currently marketed devices, and testing performed, it is concluded that the Codman Certas Plus Inline Small and Right Angle Valves are substantially equivalent to the predicate Codman Certas Programmable Valve (K152152) and, therefore, do not raise any new questions of safety and effectiveness.