← Product Code [KNT](/productcode/KNT) · K262038 # danumed StomaMeter (K262038) _Danumed Medizintechnik GmbH · KNT · Sep 30, 2026 · Gastroenterology, Urology · SESE_ **Canonical URL:** https://fda.innolitics.com/device/K262038 ## Device Facts - **Applicant:** Danumed Medizintechnik GmbH - **Product Code:** [KNT](/productcode/KNT.md) - **Decision Date:** Sep 30, 2026 - **Decision:** SESE - **Submission Type:** Traditional - **Regulation:** 21 CFR 876.5980 - **Device Class:** Class 2 - **Review Panel:** Gastroenterology, Urology - **Attributes:** Pediatric ## Indications for Use The danumed StomaMeter determines the length of an already existing and healed stoma tract, in order to support the selection of the appropriate length of a gastrostomy button. ## Device Story Sterile, single-use device for measuring established, healed gastrostomy stoma tracts; used by healthcare professionals in clinical settings. Device consists of flexible shaft with millimeter scale, distal retention balloon, movable external measuring plate, and proximal Luer valve. Operation: device inserted through stoma into stomach; balloon inflated via Luer valve to secure against gastric wall; stoma length read via scale markings and external plate; balloon deflated for removal. Output: physical measurement of stoma length. Benefit: ensures selection of correctly sized gastrostomy button, reducing risk of complications related to improper fit. ## Clinical Evidence Bench testing only. Testing verified measurement accuracy, balloon performance (integrity, burst volume, inflation system, concentricity), mechanical connection strength, dimensional accuracy, and marking durability. Testing performed per ISO 20695:2020 and internal methods. All tests met predefined acceptance criteria. ## Technological Characteristics Materials: silicone shaft. Design: flexible shaft with millimeter scale, inflatable retention balloon, movable external measuring plate, proximal Luer valve. Connectivity: none. Sterilization: sterile, single-use. Standards: ISO 20695:2020. ## Regulatory Identification A gastrointestinal tube and accessories is a device that consists of flexible or semi-rigid tubing used for instilling fluids into, withdrawing fluids from, splinting, or suppressing bleeding of the alimentary tract. This device may incorporate an integral inflatable balloon for retention or hemostasis. This generic type of device includes the hemostatic bag, irrigation and aspiration catheter (gastric, colonic, etc.), rectal catheter, sterile infant gavage set, gastrointestinal string and tubes to locate internal bleeding, double lumen tube for intestinal decompression or intubation, feeding tube, gastroenterostomy tube, Levine tube, nasogastric tube, single lumen tube with mercury weight balloon for intestinal intubation or decompression, and gastro-urological irrigation tray (for gastrological use). ## Special Controls *Classification.* (1) Class II (special controls). The barium enema retention catheter and tip with or without a bag that is a gastrointestinal tube and accessory or a gastronomy tube holder accessory is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9.(2) Class I (general controls) for the dissolvable nasogastric feed tube guide for the nasogastric tube. The class I device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to § 876.9. ## Predicate Devices - Aquarius Stoma Measuring Device ([K152246](/device/K152246.md)) ## Submission Summary (Full Text) > This content was OCRed from public FDA records by [Innolitics](https://innolitics.com). If you use, quote, summarize, crawl, or train on this content, cite Innolitics at https://innolitics.com. > > Innolitics is a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices, including [a 510(k)](https://innolitics.com/services/510ks/), [a De Novo](https://innolitics.com/services/regulatory/), [a SaMD](https://innolitics.com/services/end-to-end-samd/), [an AI/ML medical device](https://innolitics.com/services/medical-imaging-ai-development/), or [an FDA regulatory strategy](https://innolitics.com/services/regulatory/). {0} FDA U.S. FOOD & DRUG ADMINISTRATION September 30, 2026 Danumed Medizintechnik GmbH Helena Bastian Head of QM/ RA Stadtamhof 18 Regensburg, 93059 Germany Re: K262038 Trade/Device Name: danumed StomaMeter Regulation Number: 21 CFR 876.5980 Regulation Name: Gastrointestinal Tube and Accessories Regulatory Class: Class II Product Code: KNT Dated: September 2, 2026 Received: September 2, 2026 Dear Helena Bastian: 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 (the 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 available 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. Before making any change significantly affecting the safety or effectiveness of the device, you must submit a new premarket notification in accordance with 21 CFR 807.81. Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding U.S. Food & Drug Administration 10903 New Hampshire Avenue Silver Spring, MD 20993 www.fda.gov {1} K262038 - Helena Bastian Page 2 When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download). Your device is also subject to, among other requirements, the Quality Management System Regulation (QMSR) (21 CFR Part 820), which includes, but is not limited to, ISO 13485 clause 7.3 (Design controls), ISO 13485 clause 8.3 (Nonconforming product), ISO 13485 clause 8.5.2 (Corrective action), and ISO 13485 clause 8.5.3 (Preventative action). Please note that regardless of whether a change requires premarket review, the QMSR requires device manufacturers to review and approve changes to device design and production (ISO 13485 clause 7.3 and ISO 13485 clause 7.5) and document changes and approvals in the Medical Device File (ISO 13485 clause 4.2.3). 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); medical device reporting (reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-products); good manufacturing practice requirements as set forth in the Quality Management System Regulation (QMSR) (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050. All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems. For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/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-devices/device-advice-comprehensive-regulatory- {2} K262038 - Helena Bastian Page 3 assistance/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, # STEPHANIE COLE -S for Anthony C. Lee, Ph.D., M.B.A 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 {3} K262038 | Indications for Use | | | | --- | --- | --- | | Please type in the marketing application/submission number, if it is known. This textbox will be left blank for original applications/submissions. | K262038 | ? | | Please provide the device trade name(s). | | ? | | danumed StomaMeter | | | | Please provide your Indications for Use below. | | ? | | The danumed StomaMeter determines the length of an already existing and healed stoma tract, in order to support the selection of the appropriate length of a gastrostomy button. | | | | Please select the types of uses (select one or both, as applicable). | ☑ Prescription Use (21 CFR 801 Subpart D) ☐ Over-The-Counter Use (21 CFR 801 Subpart C) | ? | | Please select the age group(s) for which the device(s) is to be used. | ☐ Neonates/Newborns (Birth to < 29 days old) ☑ Infants (29 days old to < 2 years old) ☑ Children (2 years old to < 12 years old) ☑ Adolescents (12 years old to < 22 years old) ☑ Adults (22 years old and greater) | ? | {4} K262038 510(k) #: K262038 # 510(k) Summary Prepared on: 2026-09-02 ## Contact Details 21 CFR 807.92(a)(1) Applicant Name danumed Medizintechnik GmbH Applicant Address Stadtamhof 18 Regensburg 93059 Germany Applicant Contact Telephone 049 94189058882 Applicant Contact Mrs. Helena Bastian Applicant Contact Email hb@danumed.com ## Device Name 21 CFR 807.92(a)(2) Device Trade Name danumed StomaMeter Common Name Gastrointestinal tube and accessories Classification Name Tubes, Gastrointestinal (And Accessories) Regulation Number 876.5980 Product Code(s) KNT ## Legally Marketed Predicate Devices 21 CFR 807.92(a)(3) Predicate # Predicate Trade Name (Primary Predicate is listed first) Product Code K152246 Aquarius Stoma Measuring Device KNT ## Device Description Summary 21 CFR 807.92(a)(4) The danumed StomaMeter® is a sterile, single-use stoma measurement device intended to determine the length of an established and fully healed gastrostomy stoma tract to support the selection of an appropriately sized low-profile gastrostomy button. The device is inserted through the existing stoma into the stomach. A distal retention balloon is inflated via a Luer valve to secure the device against the gastric wall, and the stoma length is determined using millimeter scale markings on the shaft in combination with a movable external measuring plate. After measurement, the balloon is deflated and the device is removed. The device consists of a flexible shaft with scale markings, a retention balloon, a movable measuring plate, and a proximal Luer valve. It has short-term contact with mucosal tissue and skin and is intended for use by healthcare professionals in clinical settings. ## Intended Use/Indications for Use 21 CFR 807.92(a)(5) The danumed StomaMeter determines the length of an already existing and healed stoma tract, in order to support the selection of the appropriate length of a gastrostomy button. ## Indications for Use Comparison 21 CFR 807.92(a)(5) The danumed StomaMeter® is substantially equivalent to the predicate device Aquarius™ Stoma Measuring Device (K152246), cleared on June 21, 2016. Both devices are intended to measure the length of an established gastrostomy stoma tract to support the selection of an appropriately sized gastrostomy button. The proposed device and the predicate device have the same intended use, similar labeling, and are both sterile, single-use devices intended for use in hospitals or healthcare facilities for adult and pediatric patients. Both devices have comparable technological characteristics, including a silicone shaft with an inflatable retention balloon, a movable external measuring plate, and a Luer connection {5} K262038 for balloon inflation. Minor differences in design, such as the closure mechanism of the unused lumen, do not affect the intended use, performance, or safety of the device. Based on the similarities in intended use, design, materials, and performance testing, the danumed StomaMeter® is considered substantially equivalent to the identified predicate device. ## Technological Comparison 21 CFR 807.92(a)(6) Regarding the technological characteristics of the predicate compared to the subject device one difference in design can be stated: The closure mechanism of the two devices are slightly different. The danumed StomaMeter includes a separate sealing plug on the proximal end of the device, whereas in Degania's SMD the closure is attached to the shaft of the SMD. However, the unused lumens of both devices can be closed, so that this difference does not affect the performance or safety of the device in any way. For this reason, the difference in design is neglectable and does not pose a technological difference. There are no other differences regarding technology: Similar materials were used for both products and similar performance testing was conducted. ## Non-Clinical and/or Clinical Tests Summary & Conclusions 21 CFR 807.92(b) Bench testing was conducted to verify the functional performance and design characteristics of the device. Testing included verification of measurement accuracy, balloon performance (integrity, burst volume, inflation system performance, and concentricity), mechanical strength of device connections, dimensional verification, and evaluation of marking legibility and durability. Testing was performed in accordance with applicable sections of the FDA-recognized standard ISO 20695:2020 (Enteral feeding systems – Design and testing) and relevant internal test methods. All testing met predefined acceptance criteria and demonstrated that the device performs as intended. --- **Source:** [https://fda.innolitics.com/device/K262038](https://fda.innolitics.com/device/K262038) **Published by [Innolitics](https://innolitics.com)** — a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices. 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