(15 days)
The Equi-Flow™ Valve and Shunt Systems are used in the treatment of patients with hydrocephalus. The device is designed to shunt cerebrospinal fluid from the ventricles of the brain to an appropriate drainage site, such as the atrium of the heart or the peritoneal cavity.
The Equi-Flow™ Valve is indicated in patients where excessive reduction of intraventricular pressure or volume may be caused by the siphoning effect of hydrostatic pressure in the Distal Catheter of the shunt system.
The Integra NeuroSciences Equi-Flow™ Valve is a multi-function membrane valve incorporating a normally open Siphon Limiting Device, occluders, and integrant valving connectors. It is used in treatment of patients with hydrocephalus when shunting cerebrospinal fluid (CSF) from ventricles of the brain. It incorporates a central reservoir for pumping and injection, proximal and distal occluders, and a fully flexible profile.
The Siphon Limiting Device limits the siphon effect in the shunt system by closing when exposed to a negative Hydrostatic pressure (often caused by the patient sitting or standing).
The Equi-Flow Valve incorporates a central reservoir for pumping and injection, proximal and distal occluders, and a fully flexible profile. The Equi-Flow Valve design includes a flat silicone membrane, which provides resistance to CSF flow. The flat silicone membrane seats on a conical polypropylene base which is integral to the Siphon Limiting Device. This base is integral to a rigid outlet port. The design allows for accurate and precise regulation of CSF flow due to its structural integrity. The flat silicone membrane also prevents retrograde flow of CSF. The Equi-Flow valve is available in two sizes: Regular and Small. Both sizes are available in five pressure/flow characteristics ranges: Low/Low, Low, Low/Medium, Medium and High.
The provided text describes the Equi-Flow™ Valve and Shunt System, but it does not contain information about acceptance criteria or a study proving the device meets those criteria.
The document is a 510(k) summary, which focuses on demonstrating substantial equivalence to a predicate device rather than presenting performance data from a specific study against acceptance criteria.
Here's a breakdown of why the requested information cannot be extracted from the provided text:
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Table of acceptance criteria and reported device performance: This information is not present. The document mentions that the device "has been tested for pressure/flow, leakage, antireflux, catheter elongation and bending, and markings visual inspection," but it does not provide what the acceptance criteria were for these tests or the specific results achieved.
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Sample size used for the test set and data provenance: No specific test set or study with corresponding sample sizes or data provenance (country of origin, retrospective/prospective) is described.
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Number of experts used to establish ground truth and qualifications: Not applicable, as no study generating ground truth is detailed.
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Adjudication method: Not applicable, as no study requiring adjudication is detailed.
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Multi-reader multi-case (MRMC) comparative effectiveness study: No such study is mentioned or referenced.
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Standalone (algorithm-only) performance: Not applicable, as this is a physical medical device, not an AI algorithm.
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Type of ground truth used: Not applicable, as no study generating ground truth is detailed.
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Sample size for the training set: Not applicable, as this is a physical medical device, not an AI algorithm requiring a training set.
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How ground truth for the training set was established: Not applicable, as this is a physical medical device.
Conclusion from the provided text:
The submission for the Equi-Flow™ Valve and Shunt System relies on demonstrating substantial equivalence to existing, legally marketed predicate devices (Equi-Flow™ Valve and Shunt System and Contour-Flex Valve and Shunt System), rather than a new standalone performance study against specific acceptance criteria. The document explicitly states: "The modified Equi-Flow™ Valve and Shunt System is substantially equivalent to the unmodified Equi-Flow Valve and Shunt System and Contour-Flex Valve and Shunt System. The modifications do not affect the intended use, the fundamental scientific technology of the device, and do not raise new issues of safety and effectiveness."
Therefore, based solely on the provided text, it is not possible to fill out the requested table or answer the other questions about acceptance criteria and a specific study proving device performance. The "Safety" section briefly lists tests performed (pressure/flow, leakage, antireflux, etc.) but does not provide quantitative acceptance criteria or results.
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Equi-Flow™ Valve and Shunt System 510(k) SUMMARY
Submitter's name and address:
Integra NeuroSciences Implants SA 2905 Route des Dolines 06921 Sophia Antipolis Cedex, France
Contact person and telephone number:
Valérie Gabert Regulatory Affairs Specialist Telephone: +33 (0)4 93 95 5626 Facsimile: +33 (0)4 93 65 4030
Date summary was prepared:
September 17, 2004
Name of the device:
| Proprietary Name: | Equi-Flow™ Valve and Shunt System |
|---|---|
| Common Name: | Hydrocephalus Shunt Systems and Components |
| Classification Name: | Central Nervous System Shunt and Components JXG |
Substantial Equivalence:
The Equi-Flow™ Valve and Shunt System is substantially equivalent in function and intended use to the currently marketed Equi-Flow™ Valve and Shunt System and Contour-Flex Valve and Shunt System 510K K033698 which have been cleared to market under Premarket Notifications 510(k)s K964386 and K971511.
Intended use:
The Equi-Flow™ Valve and Shunt System is indicated for use in the treatment of patients with hydrocephalus. The valve is a component of a system designed to shunt cereirospinal fluid from the ventricles of the brain to an appropriate drainage site, such as the otriophia the heart or the peritoneal cavity.
The Equi-Flow™ Valve is indicated in patients where excessive reduction of intraventricular pressure or volume may be caused by a siphoning effect of hydron to pressure in the Distal Catheter.
Device Description:
The Integra NeuroSciences Equi-Flow™ Valve is a multi-function membrane valve incorporating a normally open Siphon Limiting Device, occluders, and integrant valving connectors. It is used in treatment of patients with hydrocephalus when shunting cerebrospinal fluid (CSF) from ventricles of the brain. It incorporates a central reservoir for pumping and injection, proximal and distal occluders, and a fully flexible profile.
The Siphon Limiting Device limits the siphon effect in the shunt system by closing when exposed to a negative Hydrostatic pressure (often caused by the patient sitting or standing).
The Equi-Flow Valve incorporates a central reservoir for pumping and injection, proximal and distal occluders, and a fully flexible profile. The Equi-Flow Valve design includes a
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flat silicone membrane, which provides resistance to CSF flow. The flat silicone membrane seats on a conical polypropylene base which is integral to the Siphon Limiting Device. This base is integral to a rigid outlet port. The design allows for accurate and precise regulation of CSF flow due to its structural integrity. The flat silicone membrane also prevents retrograde flow of CSF. The Equi-Flow valve is available in two sizes: Regular and Small. Both sizes are available in five pressure/flow characteristics ranges: Low/Low, Low, Low/Medium, Medium and High.
Safety
The Equi-Flow™ Valve and Shunt Systems are provided sterile and non-pyrogenic. The Equi-Flow™ Valve and Shunt Systems have been tested for pressure/flow, leakage, antireflux, catheter elongation and bending, and markings visual inspection.
Conclusion
The modified Equi-Flow™ Valve and Shunt System is substantially equivalent to the unmodified Equi-Flow Valve and Shunt System and Contour-Flex Valve and Shunt System. The modifications do not affect the intended use, the fundamental scientific technology of the device, and do not raise new issues of safety and effectiveness.
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Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is an abstract symbol resembling an eagle or bird with three stylized wing-like shapes.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
OCT 6 - 2004
Integra NeuroSciences Implants, S.A. c/o Ms. Judith E. O'Grady Sr. Vice President, Regulatory Affairs Integra LifeSciences Corporation 311 Enterprise Drive Plainsboro, New Jersey 08536
Re: K042558
K042338
Trade/Device Name: Equi-Flow™ Valve and Shunt Systems Regulation Number: 21 CFR 882.5550 Regulation Name: Central nervous system fluid shunt and components Regulatory Class: II Product Code: JXG Dated: September 20, 2004 Received: September 21, 2004
Dear Ms. O'Grady:
We have reviewed your Section 510(k) premarket notification of intent to market the indication We have reviewed your Section 910(x) premainter nearbeted in interests of the indications felerenced above and nave acterifically marketed predicate devices marketed in interstate for use stated in the encrosule) to regally manated povice Americal Device American works. Or to commerce prior to May 20, 1970, the enaounce with the provisions of the Federal Food. Drug. devices that have been receassined in doese approval of a premarket approval application (PMA). and Cosment Act (Act) that do not require approvine controls provisions of the Act. The You may, therefore, market the device, basjon courements for annual registration, listing of general Controls provisions of the 110 1100 libeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it II your device is classified (sociation major regulations affecting your device can may be subject to such additional controller Listen general on 898. In addition, FDA may be found in the Our acements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean I lease oc advised that I Dr o lesaanse over device complies with other requirements of the Act that FDA has made a dolorizations administered by other Federal agencies. You must of any redital statutes and regalanents ancluding, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set CFR in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic form in the qualisy of even provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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Page 2 - Ms. Judith E. O'Grady
This letter will allow you to begin marketing your device as described in your Section 510(k) rms leter witification. The FDA finding of substantial equivalence of your device to a legally premated predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please 11 you a the Office of Compliance at (240) 276-0115. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours,
Miriam C. Provost
Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Indications for Use
510(k) Number (if known):
KAASSE8
Device Name:
Equi-Flow™ Valve and Shunt Systems
Indications For Use:
The Equi-Flow™ Valve and Shunt Systems are used in the treatment of patients with hydrocephalus. The device is designed to shunt cerebrospinal fluid from the ventricles of the brain to an appropriate drainage site, such as the atrium of the heart or the peritoneal cavity.
The Equi-Flow™ Valve is indicated in patients where excessive reduction of intraventricular pressure or volume may be caused by the siphoning effect of hydrostatic pressure in the Distal Catheter of the shunt system.
ਮ Prescription Use (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Miriam C. Provost
(Division Sign-Off) Division of General, Restorative, and Neurological Devices
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c-001
510(k) Number K042558
§ 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).