(102 days)
WARTNER PRO® is intended for the treatment of common warts and plantar warts in adults and children over the age of 4. Common warts are recognized by the rough 'cauliflower-like' appearance ci the surface. The plantar wart is recognized by its location only on the bottom of the foot, its tenderness, and the interruption of the footprint pattern. The product is intended as an OTC device, which will be marketed to professionals, allied professionals, and semi-professionals.
WARTNER PRO® is a cryosurgical system for the treatment of warts. It consists of
- A canister filled with 125 ml of a liquid mixture of the compressed gases . dimethyl ether and propane. This gas mixture does not harm the ozone layer, and has a four-year shelf life.
- 42 Foam applicators in three different sizes (6 mm, 7 mm, 8 mm) .
- An applicator stick/key for holding a foam applicator which is required to . dispense the liquid to the applicator, and is held by the person during treatment
- . Information booklet
The pressurized canister is filled with dimethyl ether and propane, which acts as a cryogen. The key is fitted with a foam applicator, which is inserted into the safety valve opening in the canister. The valve releasing the cryogen can only be actuated when the key is in place and depressed. When the key is depressed it saturates the foam applicator with the cold cryogenic gases and lowers the temperature of the applicator to approximately -50℃. The foam applicator is then placed on the wart. The freezing kills the wart and the infected skin causing the wart to fall off within a few days.
Here's an analysis of the provided text regarding the acceptance criteria and supporting study for the WARTNER PRO® device:
The provided text is a 510(k) summary for a cryosurgical system called WARTNER PRO®. It focuses on demonstrating substantial equivalence to predicate devices rather than detailing independent clinical studies with specific performance metrics against pre-defined acceptance criteria. Therefore, many of the requested elements for a typical clinical study, such as specific acceptance criteria for efficacy or safety, effect sizes from MRMC studies, or detailed ground truth establishment, are not explicitly present.
However, based on the information provided, we can infer some "acceptance criteria" through the lens of performance equivalence to the predicate device and the laboratory testing described.
1. Table of Acceptance Criteria and Reported Device Performance
| Acceptance Criteria (Inferred from Predicate Equivalence and Lab Testing) | Reported Device Performance |
|---|---|
| Cryogen Composition: Identical to predicate device (dimethyl ether and propane). | WARTNER PRO® uses a cryogen composed of dimethyl ether and propane. The Wartner® Wart Removal System OTC predicate device cryogen is identical. |
| Applicator Material: Identical to predicate device (foam material). | The material used to transfer the cold to the patient in both WARTNER PRO® and Wartner® Wart Removal System OTC use is the same foam material. |
| Applicator Effectiveness Temperature: Maintains temperature of less than minus 50°C. | The average temperature of the applicator surface after saturation is -56.4°C. The WARTNER PRO® foam applicator maintains a temperature of less than minus 50°C. The Wartner® Wart Removal System OTC predicate device effectiveness is identical (implies it also maintains < -50°C). |
| Safety Valve Mechanism: Incorporates a safety valve that cannot be actuated unless the foam applicator and applicator stick/key are in place and depressed, identical to predicate device. | The design of both WARTNER PRO® and Wartner® Wart Removal System OTC incorporate the use of a safety valve that cannot be actuated unless the foam applicator and applicator stick/key are in place and depressed. |
| Intended Use: For treatment of common warts and plantar warts in adults and children over 4. | WARTNER PRO® is intended for the treatment of common warts and plantar warts in adults and children over the age of 4. This expands on the primary predicate, which only covers common warts. |
| Labeling Safety & Warnings: Identical to predicate device for common warts, comparable to other predicate devices for plantar warts. | The safety and warning statements for WARTNER PRO® and the primary predicate device (Wartner® Wart Removal System for OTC use) are identical except for any reference to plantar warts. The WARTNER PRO® safety and warning statements for the plantar wart indication have been developed using the other labeling predicates to ensure that they are comparable. |
2. Sample Size Used for the Test Set and Data Provenance
The provided document describes laboratory testing and comparison to predicate devices rather than a clinical human subject test set for efficacy.
- Test Set Sample Size: Not applicable in the context of a clinical study. For the laboratory testing, while it mentions "Several lengths, sizes, and shapes of foam were tested," a specific quantitative sample size for this internal testing is not provided.
- Data Provenance: The data appears to be internal laboratory testing data from Wartner Medical Products. No information is given about the country of origin of subjects/data (as it's not a clinical study) or if it's retrospective or prospective.
3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications
This information is not provided in the document. The filing is a 510(k) based on substantial equivalence, relying on physical and functional comparisons to predicate devices and internal lab measurements, not on clinical expert consensus for ground truth on patient outcomes.
4. Adjudication Method for the Test Set
This information is not applicable as there is no mention of a test set requiring adjudication in the context of a clinical study or human subject data.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
No, an MRMC comparative effectiveness study was not done or described in this 510(k) summary. This type of study comparing human readers with and without AI assistance is not relevant to a cryosurgical device for wart removal, which is a direct treatment device, not an imaging or diagnostic aid.
6. Standalone (Algorithm Only Without Human-in-the-Loop Performance) Study
Not applicable. This device is a cryosurgical tool, not an algorithm or AI system. Its performance is related to its physical properties (temperature, cryogen, applicator design) and its ability to deliver the therapy as intended, not an algorithm's standalone performance.
7. Type of Ground Truth Used
The "ground truth" for the device's technical specifications and equivalence is established through:
- Laboratory Measurements: For physical characteristics like applicator temperature (-56.4°C).
- Chemical and Material Analysis: Confirming identical cryogen composition and applicator foam material to the predicate device.
- Design Comparison: Verifying similarity in application method, safety features, and overall design to predicate devices.
- Labeling Comparison: Ensuring comparable instructions for use, warnings, and indications, particularly by referring to existing predicate devices for the plantar wart indication.
8. Sample Size for the Training Set
There is no mention of a "training set" in the context of this device. A training set is typically used for machine learning models, which is not applicable here. The device's design and characteristics were developed through engineering processes and laboratory testing, rather than a data-driven training process.
9. How the Ground Truth for the Training Set Was Established
Since there is no training set mentioned or implied for this device, this question is not applicable.
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JUN 2 7 2003
510(k) Summary
1. Submitter's Name, Address and Contact Person
Submitter Wartner Medical Products Ijsbaanpad la 1076 CV Amsterdam The Netherlands
Telephone: 31 (0) 20 305 9100 Facsimile: 31 (0) 20 305 9109
Contact Person Nancy Lum-Wilson N. Wilson Consulting Inc. 65 Ava Crescent Richmond Hill, Ontario CANADA L4B 2X5
1030838
Telephone: 905-884-7855 Facsimile: 905-208-8599
Date Summary Prepared: January 17, 2003
2. Name of Device
WARTNER PRO®
3. Name of Predicate Device(s)
- Wartner® Wart Removal System for OTC use, by Wartner Medical Products . (Primary Predicate)
- Histofreezer® Portable Cryosurgical Unit, by Orasure Technologies Inc. . (Labeling predicate)
- Tinamed® Plantar Patch, by Stiefel laboratories. Inc. (Labeling predicate) .
- Tinamed® Wart Remover indicated for common warts and plantar warts, by ● Stiefel laboratories, Inc. (Labeling predicate)
- Maximum Strength Wart-Off®, by Consumer Health Care Group Pfizer Inc. Dist. ● (Labeling predicate)
- DuoFilm® Salicylic Acid Wart Remover indicated for common warts and plantar . warts, by Schering-Plough HealthCare Products, Inc. (Labeling predicate)
- Clear Away® System Plantar Wart Remover for Feet, by Schering-Plough . HealthCare Products, Inc. (Labeling predicate)
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4. Description of Device
WARTNER PRO® is a cryosurgical system for the treatment of warts. It consists of
- A canister filled with 125 ml of a liquid mixture of the compressed gases . dimethyl ether and propane. This gas mixture does not harm the ozone layer, and has a four-year shelf life.
- 42 Foam applicators in three different sizes (6 mm, 7 mm, 8 mm) .
- An applicator stick/key for holding a foam applicator which is required to . dispense the liquid to the applicator, and is held by the person during treatment
- . Information booklet
The pressurized canister is filled with dimethyl ether and propane, which acts as a cryogen. The key is fitted with a foam applicator, which is inserted into the safety valve opening in the canister. The valve releasing the cryogen can only be actuated when the key is in place and depressed. When the key is depressed it saturates the foam applicator with the cold cryogenic gases and lowers the temperature of the applicator to approximately -50℃. The foam applicator is then placed on the wart. The freezing kills the wart and the infected skin causing the wart to fall off within a few days.
5. Statement of Intended Use
WARTNER PRO® is intended for the treatment of common warts and plantar warts in adults and children over the age of 4. Common warts are recognized by the rough 'cauliflower-like' appearance ci the surface. The plantar wart is recognized by its location only on the bottom of the foot, its tenderness, and the interruption of the footprint pattern. The product is intended as an OTC device, which will be marketed to professionals, allied professionals, and semi-professionals.
6. Statement of Technological Characteristics of the Device
- a) Laboratory Testing:
The average temperature of the applicator surface after saturation is -56.4° C.
A discussion of the testing methodology is included in the "Performance" section of this submission. Several lengths, sizes, and shapes of foam were tested to identify the optimum characteristics of liquid retention (minimal dripping) and versatile shape for treating various sizes of warts.
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- b) Biocompatibility:
The cryogen used in WARTNER PRO® is a mixture of dimethyl ether and propane, which is the exactly same as the cryogen used in the predicate device, Wartner® Wart Removal System for OTC use.
The material used to transfer the cold to the patient in both WARTNER PRO® and Wartner® Wart Removal System for OTC use is the same foam material. The foam is well characterized chemically and physically in the published literature.
- c) Comparison to Predicate Device(s):
Application
WARTNER PRO® provides an applicator and key, which is removed from the tube of cryogen after saturation and can be easily manipulated to treat warts. Three sizes of applicators (6 mm, 7 mm, 8 mm) are included within the kit to treat warts of various sizes.
The Wartner® Wart Removal System OTC predicate device applicator is identical in shape. However, only the 8 mm size is included. The applicator key is identical.
Applicator Effectiveness Duration
The WARTNER PRO® foam applicator maintains a temperature of less than minus 50°C.
The Wartner® Wart Removal System OTC predicate device effectiveness is identical
Cryogen
WARTNER PRO® uses a cryogen composed of dimethyl ether and propane.
The Wartner® Wart Removal System OTC predicate device cryogen is identical.
Safety/Ease of Use:
The design of both WARTNER PRO® and Wartner® Wart Removal System OTC incorporate the use of a safety valve that cannot be actuated unless the foam applicator and applicator stick/key are in place and depressed.
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Wartner Medical Products WARTNER PRO®
Indications for Use:
WARTNER PRO® is indicated for the treatment of common warts and plantar warts in adults and children over the age of 4. It is intended as an OTC device and will be marketed to professionals, allied professionals and semi-professionals.
Wartner® Wart Removal System is indicated for the treatment of common warts in adults and children over the age of 4. It is marketed to the general public.
Labeling:
The labeling of WARTNER PRO® and Wartner® Wart Removal System have been developed to ensure the consumer and professional have adequate directions for use and for safety. The labeling also provides adequate information for selfdiagnosis and ensures a doctor is contacted if there is any doubt, if stinging or aching persists after treatment or if the condition does not improve after three treatments. The labeling for WARTNER PRO® is virtually identical to that of Wartner® Wart Removal System for OTC use, except for the addition of the "plantar wart" indication and any reference to plantar warts.
The safety and warning statements for WARTNER PRO® and the primary predicate device (Wartner® Wart Removal System for OTC use) are identical except for any reference to plantar warts. The WARTNER PRO® safety and warning statements for the plantar wart indication have been developed using the other labeling predicates (Histofreezer®, Tinamed® Plantar Patch, Maximum Strength Wart-Off®, DuoFilm® Salicylic Acid Wart Remover indicated for common warts and plantar warts, Tinamed® Wart Remover indicated for common warts and plantar warts) to ensure that they are comparable.
7. Conclusion
Based on the information presented above it is concluded that the proposed WARTNER PRO® is safe and effective for its intended use and is substantially equivalent to the primary predicate device. It is also substantially equivalent in intended use, safety, and labeling to the labeling predicate devices.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/4/Picture/1 description: The image is a black and white logo for the U.S. Department of Health & Human Services. The logo features a stylized image of a human figure with three faces in profile, one behind the other. The figure is surrounded by a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in all capital letters.
Public Health Service
JUN 27 2003
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Wartner Medical Products c/o Ms. Nancy Lum-Wilson N. Wilson Consulting, Inc. 65 Ava Crescent Richmond Hill, Ontario Canada L4B 2X5
Re: K030838 Trade/Device Name: WARTNER PRO® Regulation Number: 21 CFR 878.4350 Regulation Name: Cryosurgical unit and accessories Regulatory Class: II Product Code: GEH Dated: June 16, 2003 Received: June 18, 2003
Dear Ms. Lum-Wilson:
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. 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.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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 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); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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Page 2 - Ms. Nancy Lum-Wilson
This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed 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 contact the Office of Compliance at (301) 594-4659. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. 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 may be obtained 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
for 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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STATEMENT OF INDICATIONS FOR USE
K030838 510(k) Number:
WARTNER PRO® Device Name:
WARTNER PRO® is intended for the treatment of common Indications for Use: warts and plantar warts.
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use (Per 21 CFR 801.109)
OR
Over-the-Counter Use (Optional Format 1-2-96)
(Division Sign-Off)
Division of General, Restorative
Neurological Devices
510(k) Number Ko30838
§ 878.4350 Cryosurgical unit and accessories.
(a)
Identification —(1)Cryosurgical unit with a liquid nitrogen cooled cryoprobe and accessories. A cryosurgical unit with a liquid nitrogen cooled cryoprobe and accessories is a device intended to destroy tissue during surgical procedures by applying extreme cold.(2)
Cryosurgical unit with a nitrous oxide cooled cryoprobe and accessories. A cryosurgical unit with a nitrous oxide cooled cryoprobe and accessories is a device intended to destroy tissue during surgical procedures, including urological applications, by applying extreme cold.(3)
Cryosurgical unit with a carbon dioxide cooled cryoprobe or a carbon dioxide dry ice applicator and accessories. A cryosurgical unit with a carbon dioxide cooled cryoprobe or a carbon dioxide dry ice applicator and accessories is a device intended to destroy tissue during surgical procedures by applying extreme cold. The device is intended to treat disease conditions such as tumors, skin cancers, acne scars, or hemangiomas (benign tumors consisting of newly formed blood vessels) and various benign or malignant gynecological conditions affecting vulvar, vaginal, or cervical tissue. The device is not intended for urological applications.(b)
Classification. Class II.