(30 days)
The Aqua Medical RF Vapor System is indicated for use in the coagulation of bleeding sites in the gastrointestinal tract including but not limited to the esophagus. Include Esophageal Ulcers, Mallory-Weiss tears, Arteriovenous Malformations, Angiomata, Barrett's Esophagus, Dieulafoy Lesions, Angiodysplasia, Gastric Antral Vascular Ectasia (GAVE) and Radiation Proctitis (RP). The device is to be used in adults only.
The Aqua RF Vapor System uses a catheter to deliver heated water vapor to the tissue surface undergoing treatment. The Aqua RF Vapor System is a catheter-based system for heating and coagulating tissue. The heat is delivered to the target tissue in the form of water vapor that is generated within the catheter tip using radiofrequency (RF) energy. Application of heat to the tissue results in coagulation of the tissues being treated. This technique avoids the need for direct RF energy application to heat the tissue. The Aqua Medical RF Vapor System consists of the following components: Aqua RF Vapor Generator: A software-controlled RF generator is operated i through a graphical user interface (GUI) and incorporates a svringe pump that delivers saline to the catheter. Delivery of bipolar RF energy to the catheter is controlled either by an accessory foot pedal or a button incorporated in the disposable catheter. Aqua RF Vapor Catheters: disposable, sterile, single-use catheters with a diameter of 7 F (2.3 mm) and a lengths between145 cm and 210 cm. There are 4 types of RF Vapor catheters available. Saline Delivery Tubing and Syringe: Tubing and syringe (60cc) provide a means of delivering saline to the catheter during treatment.
The Aqua Medical RF Vapor System is indicated for use in the coagulation of bleeding and non-bleeding sites in the gastrointestinal tract in adults. Indications include Esophageal Ulcers, Mallory-Weiss tears, Arteriovenous Malformations, Angiomata, Barrett's Esophagus, Dieulafoy Lesions, Angiodysplasia, Gastric Antral Vascular Ectasia (GAVE) and Radiation Proctitis (RP).
Here's an analysis of the acceptance criteria and the study that proves the device meets them, based on the provided text:
1. Table of Acceptance Criteria and Reported Device Performance
The provided text does not explicitly state specific acceptance criteria in a quantitative manner (e.g., minimum percentage of coagulation, specific temperature achieved). However, it does describe the types of tests performed to demonstrate substantial equivalence to the predicate device. The performance data is presented as verification that the new catheter design performs as intended and is as safe and effective as the predicate.
| Acceptance Criteria Category | Reported Device Performance |
|---|---|
| Intended Use Equivalence | The Aqua Medical RF Vapor System has identical indications for use as the previously cleared Aqua RF Vapor System (predicate device). |
| Technological Equivalence | The new Aqua Medical Circumferential RF Vapor Ablation Catheter design was tested to ensure it performs as intended via hardware verification testing. Comparative simulated use bench model testing was conducted to support substantial equivalency and demonstrate that the new design functions in an equivalent manner as the previously cleared Aqua Medical Focal RF Vapor Catheters. |
| Safety and Effectiveness | Comparative validation testing and verification testing demonstrated that the additional catheter design is substantially equivalent to the previously cleared Aqua RF Focal Vapor Catheter. The device is considered as safe and effective as its predicate without raising any new safety and/or effectiveness concerns. This was supported by: Hardware Verification TestingSimulated tissue model testingBiocompatibility Testing (cytotoxicity, sensitization, and irritation)Packaging and shelf-life testingSterilization Validation |
2. Sample Size Used for the Test Set and Data Provenance
The document does not specify sample sizes for the simulated use bench model testing or other performance tests. It also does not mention the country of origin of the data or whether the studies were retrospective or prospective, beyond stating "simulated tissue model" which implies a prospective, controlled lab setting.
3. Number of Experts Used to Establish Ground Truth for the Test Set and Their Qualifications
The document does not provide information regarding the number of experts, their qualifications, or their involvement in establishing ground truth for the test set.
4. Adjudication Method
The document does not describe any adjudication method for the test set.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
A multi-reader multi-case (MRMC) comparative effectiveness study was not mentioned or indicated in the provided text. The evaluation focuses on the device's technical performance and equivalence to a predicate, not on human reader performance with or without AI assistance.
6. Standalone (Algorithm Only) Performance
The Aqua Medical RF Vapor System is a physical medical device (catheter-based system using RF energy for tissue coagulation), not an algorithm or AI-driven system. Therefore, a standalone (algorithm only) performance study is not applicable and was not mentioned.
7. Type of Ground Truth Used
Based on the description of "simulated tissue model" and various verification and validation tests, the ground truth for the performance evaluations likely involved established scientific and engineering standards for tissue coagulation, material properties, biocompatibility, and sterilization effectiveness. The "ground truth" would be objective measurements and observations against these standards, rather than expert consensus on medical images or patient outcomes.
8. Sample Size for the Training Set
Since this is a physical medical device and not an AI or machine learning algorithm, the concept of a "training set" in the context of data for model development is not applicable.
9. How the Ground Truth for the Training Set Was Established
As noted above, a training set is not applicable for this type of device.
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December 17, 2021
Aqua Medical, Inc. % Bosmat Friedman Regulatory Consultant ProMedoss, Inc. 3521 Hatwynn Rd. Charlotte, NC 28269
Re: K213627
Trade/Device Name: Aqua Medical RF Vapor System Regulation Number: 21 CFR§ 876.4300 Regulation Name: Endoscopic Electrosurgical Unit and Accessories Regulatory Class: II Product Code: KNS, GEI Dated: November 16, 2021 Received: November 17, 2021
Dear Bosmat Friedman:
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 statutes and regulations administered by other Federal agencies.
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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/combination-products/guidance-regulatoryinformation/postmarketing-safety-reporting-combination-products); 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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). 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 (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Shanil P. Haugen, Ph.D. Assistant Director DHT3A: Division of Renal, Gastrointestinal, Obesity and Transplant Devices OHT3: Office of GastroRenal, ObGyn, General Hospital and Urology Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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Indications for Use
510(k) Number (if known) K213627
Device Name Aqua Medical RF Vapor System
Indications for Use (Describe)
The Aqua Medical RF Vapor System is indicated for use in the coagulation of bleeding sites in the gastrointestinal tract including but not limited to the esophagus. Include Esophageal Ulcers, Mallory-Weiss tears, Arteriovenous Malformations, Angiomata, Barrett's Esophagus, Dieulafoy Lesions, Angiodysplasia, Gastric Antral Vascular Ectasia (GAVE) and Radiation Proctitis (RP). The device is to be used in adults only.
Type of Use (Select one or both, as applicable)
| Prescription Use (Part 21 CFR 801 Subpart D) |
|---|
| Over-The-Counter Use (21 CFR 801 Subpart C) |
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510(K) SUMMARY [SPECIAL 510(K)] Aqua Medical RF Vapor System 510(k) Number
1. SUBMITTER
Applicant's Name:
Aqua Medical, Inc. 191 West Second St. Santa Ana, CA 92701 Phone: 949-233-5172
Primary Contact:
Bosmat Friedman Regulatory Affairs Consultant 3521 Hatwynn Rd. Charlotte, NC 28269 Phone: 980-308-1636 bosmat.f@promedoss.com
Date Prepared:
November 16, 2021
2. DEVICE
Trade Name: Aqua Medical RF Vapor System
Classification Name: Endoscopic electrosurgical unit and accessories Product Code: KNS Regulation No: 876.4300 Class: 2 Review Panel: Gastroenterology/Urology
Classification Name: Electrosurgical cutting and coagulation device and accessories Product Code: GEI Regulation No: 878.4400 Class: 2 Review Panel: General & Plastic Surgery
3. PREDICATE DEVICES
Aqua Medical RF Vapor System, by Aqua Medical Inc., Product code KNS, GEI cleared Under: K211282 and K183595.
Image /page/3/Figure/16 description: The image is completely white and contains no discernible features or objects. It appears to be a blank canvas or a solid white background. There are no variations in color or texture visible in the image. The image lacks any details or points of interest.
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4. DEVICE DESCRIPTION
The Aqua RF Vapor System uses a catheter to deliver heated water vapor to the tissue surface undergoing treatment. The Aqua RF Vapor System is a catheter-based system for heating and coagulating tissue. The heat is delivered to the target tissue in the form of water vapor that is generated within the catheter tip using radiofrequency (RF) energy. Application of heat to the tissue results in coagulation of the tissues being treated. This technique avoids the need for direct RF energy application to heat the tissue. The Aqua Medical RF Vapor System consists of the following components:
Aqua RF Vapor Generator: A software-controlled RF generator is operated i through a graphical user interface (GUI) and incorporates a svringe pump that delivers saline to the catheter. Delivery of bipolar RF energy to the catheter is controlled either by an accessory foot pedal or a button incorporated in the disposable catheter.
Aqua RF Vapor Catheters: disposable, sterile, single-use catheters with a diameter of 7 F (2.3 mm) and a lengths between145 cm and 210 cm. There are 4 types of RF Vapor catheters available.
Saline Delivery Tubing and Syringe: Tubing and syringe (60cc) provide a means of delivering saline to the catheter during treatment.
INDICATIONS FOR USE 5.
The Aqua Medical RF Vapor System is indicated for use in the coagulation of bleeding and non-bleeding sites in the gastrointestinal tract including but not limited to the esophagus. Indications include Esophageal Ulcers, Mallory-Weiss tears, Arteriovenous Malformations, Angiomata, Barrett's Esophagus, Dieulafoy Lesions, Angiodysplasia, Gastric Antral Vascular Ectasia (GAVE) and Radiation Proctitis (RP). The device is to be used in adults only.
6. SUBSTANTIAL EQUIVALENCE
The Aqua RF Vapor System is substantially equivalent to the predicate device based on the following:
Intended Use
The intended use of the proposed device is identical to that of the cleared device.
Technology
The proposed device modifications introduce a new catheter design, the Aqua Medical Circumferential RF Vapor Ablation Catheter. The catheter has been tested to ensure it performs as intended via hardware verification testing. Furthermore, comparative simulated use bench model testing was conducted to support our substantial equivalency claim and to demonstrate that the new design functions in an equivalent manner as the previously cleared Aqua Medical Focal RF Vapor Catheters.
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Discussion
The Aqua RF Vapor System has identical indications for use as the previously cleared Aqua RF Vapor System. The main technological difference between the Aqua RF Vapor System and the predicates is the addition of the Aqua Medical Circumferential RF Vapor Ablation Catheter that can be used with the previously cleared generator. The additional catheter provides the physician with the ability to achieve a circumferential lesion in less time and fewer number of vapor deliveries.
Comparative validation testing and verification testing demonstrated that the additional catheter design is substantially equivalent to the previously cleared Aqua RF Focal Vapor Catheter. Consequently, the Aqua RF Vapor System is as safe and effective as its predicate without raising any new safety and/or effectiveness concerns.
7. PERFORMANCE DATA
In order to support the proposed modifications, the following tests were conducted:
- Hardware Verification Testing 工
- Simulated tissue model 1
- Biocompatibility Testing (cytotoxicity, sensitization and irritation) ਾਕਰੇ
- Packaging and shelf-life testing, and -
- Sterilization Validation ﻴﻨ
8. CONCLUSION
Aqua Medical has demonstrated that the Aqua RF Vapor Ablation System is substantially equivalent to the predicate device. Differences between the proposed Aqua RF Vapor System and the predicate device do not raise new questions of safety or effectiveness.
§ 876.4300 Endoscopic electrosurgical unit and accessories.
(a)
Identification. An endoscopic electrosurgical unit and accessories is a device used to perform electrosurgical procedures through an endoscope. This generic type of device includes the electrosurgical generator, patient plate, electric biopsy forceps, electrode, flexible snare, electrosurgical alarm system, electrosurgical power supply unit, electrical clamp, self-opening rigid snare, flexible suction coagulator electrode, patient return wristlet, contact jelly, adaptor to the cord for transurethral surgical instruments, the electric cord for transurethral surgical instruments, and the transurethral desiccator.(b)
Classification. Class II (performance standards).