K243120 · Erbe Elektromedizin GmbH · GEI · Jun 20, 2025 · General, Plastic Surgery
Device Facts
Record ID
K243120
Device Name
HybridAPC probe
Applicant
Erbe Elektromedizin GmbH
Product Code
GEI · General, Plastic Surgery
Decision Date
Jun 20, 2025
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4400
Device Class
Class 2
Attributes
Therapeutic, Real-World Evidence
Real-World Evidence
Submission
Device
Sponsor
RWD Sources
RWE Use Summary
Key Tags
K243120 · Jun 20, 2025
HybridAPC probe
Erbe Elektromedizin GmbH
Peer-reviewed clinical literature; Systematic literature review and meta-analysis of clinical practice data
The sponsor utilized a systematic literature review and meta-analysis of clinical studies to demonstrate the safety and efficacy of the device for expanded indications (non-lesioned mucosa) and to confirm that the safety profile is consistent with established clinical practice.
Label expansion; Systematic literature review; Meta-analysis; Clinical practice outcomes
Clinical Evidence
Study Design
Population
Comparator
Key Endpoints
Systematic literature review and meta-analysis; Systematic literature review and meta-analysis
The HybridAPC probe is intended for the submucosal injection of sterile normal saline to lift mucosa using direct visualization through an endoscope and for HF ablation of the mucosa, with or without lesions, by Argon Plasma Coagulation (APC). Indications include but are not limited to: • Barrett’s esophagus • Ulcers • Arteriovenous Malformations • Angioma • Angiodysplasia • Gastric Antral Vascular Ectasia (GAVE) • Radiation Proctitis • Gastroesophageal reflux disease (GERD) • Post-polypectomy ablation/Post-EMR ablation
Device Story
Flexible, sterile, single-use monopolar probe; combines hydrosurgery and Argon Plasma Coagulation (APC). Used with endoscopes (working channel >2.5mm) in clinical settings by physicians. Input: pressurized sterile normal saline and argon gas; electrical energy from external ESU/APC units. Operation: hydrosurgical function creates submucosal fluid cushion for tissue protection; APC function delivers ionized argon plasma for mucosal ablation. Activation via footswitch. Output: thermal ablation of tissue. Benefits: mechanical/thermal protection via fluid cushion; enables precise mucosal ablation. Clinical decision-making: used for treating various GI lesions and mucosal conditions; provides alternative to other RF ablation methods.
Clinical Evidence
No clinical trials conducted by the applicant. Evidence consists of a systematic literature review and meta-analysis of real-world evidence. Data from studies involving >1,900 patients for safety and >1,200 patients/lesions for performance outcomes demonstrate that use on non-lesioned mucosa is safe and effective, with outcomes consistent with established use on lesioned tissue.
Technological Characteristics
Materials: Stainless steel, tungsten, plastics. Energy: Monopolar HF electrical current via ionized argon plasma; high-pressure water jet (1-80 bar). Dimensions: 1.9m length, 2.3mm OD. Connectivity: Connects to Erbe APC/VIO units and ERBEJET 2. Sterilization: Ethylene oxide (SAL 10^-6). Standards: IEC 60601-1, IEC 60601-2-2, IEC 60601-2-18, IEC 60601-1-2, ISO 10993-1, ISO 11135, ISO 11607-1, ASTM F 1980.
Indications for Use
Indicated for submucosal saline injection to lift mucosa and HF ablation of mucosa (with or without lesions) via Argon Plasma Coagulation. Applicable for Barrett’s esophagus, ulcers, AVMs, angioma, angiodysplasia, GAVE, radiation proctitis, GERD, and post-polypectomy/EMR ablation.
Regulatory Classification
Identification
An electrosurgical cutting and coagulation device and accessories is a device intended to remove tissue and control bleeding by use of high-frequency electrical current.
Predicate Devices
ERBE WaterJet Model ERBEJET® 2 System with HybridAPC Probe (K143306)
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FDA U.S. FOOD & DRUG ADMINISTRATION
June 20, 2025
Erbe Elektromedizin GmbH
Matthias Kollek
Regulatory Affairs Specialist
Waldhoernlestrasse 17
Tuebingen, 72072
Germany
Re: K243120
Trade/Device Name: HybridAPC probe
Regulation Number: 21 CFR 878.4400
Regulation Name: Electrosurgical Cutting And Coagulation Device And Accessories
Regulatory Class: Class II
Product Code: GEI, FQH
Dated: May 19, 2025
Received: May 19, 2025
Dear Matthias Kollek:
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.
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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2K243120 - Matthias Kollek
Page
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding 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 System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 systems (QS) regulation (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-
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3K243120 - Matthias Kollek
Page
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,
James H. Jang -S
Digitally signed by
James H. Jang -S
Date: 2025.06.20
10:21:18 -04'00"
James Jang, Ph.D.
Acting Assistant Director
DHT4A: Division of General Surgery Devices
OHT4: Office of Surgical and
Infection Control Devices
Office of Product Evaluation and Quality
Center for Devices and Radiological Health
Enclosure
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FORM FDA 3881 (8/23)
Page 1 of 1
PSC Publishing Services (301) 443-6740
EF
| DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration Indications for Use | Form Approved: OMB No. 0910-0120 Expiration Date: 07/31/2026 See PRA Statement below. |
| --- | --- |
| 510(k) Number (if known) K243120 | |
| Device Name HybridAPC probe | |
| Indications for Use (Describe) The HybridAPC probe is intended for the submucosal injection of sterile normal saline to lift mucosa using direct visualization through an endoscope and for HF ablation of the mucosa, with or without lesions, by Argon Plasma Coagulation (APC). Indications include but are not limited to: • Barrett’s esophagus • Ulcers • Arteriovenous Malformations • Angioma • Angiodysplasia • Gastric Antral Vascular Ectasia (GAVE) • Radiation Proctitis • Gastroesophageal reflux disease (GERD) • Post-polypectomy ablation/Post-EMR ablation | |
| 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) | |
| CONTINUE ON A SEPARATE PAGE IF NEEDED. | |
| This section applies only to requirements of the Paperwork Reduction Act of 1995. *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.* | |
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{4}
Erbe Elektromedizin GmbH
Traditional 510(k) for HybridAPC probe
K243120
# 510(k) SUMMARY
## Applicant
Erbe Elektromedizin GmbH
Waldhoernlestrasse 17
72072 Tuebingen
Germany
Tel: 0049-7071-755-0
Fax: 0049-7071-755-179
## Contact Person
Dr. Matthias Kollek
Regulatory Affairs Specialist
E-Mail: Matthias.Kollek@erbe-med.com
## Date Prepared
June 20,2025
## Device Information
Trade/Proprietary Name: HybridAPC probe
Common Name: Argon-enhanced endoscopic electrosurgical electrode
Classification Name: Electrosurgical cutting and coagulation device and accessories
Regulation Number: 21 CFR 878.4400
Class: II
Product Code: GEI & FQH
## Legally Marketed Predicate Devices
**Primary Predicate**
ERBE WaterJet Model ERBEJET® 2 System with HybridAPC Probe (K143306)
**Secondary Predicate**
ERBE APC Integrated Filter Probes (K060183)
**Reference Device**
Barrx FLEX RFA Energy Generator (K160360)
Page 1 of 7
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Erbe Elektromedizin GmbH
Traditional 510(k) for HybridAPC probe
K243120
# Device Description
The HybridAPC probe is a flexible, sterile, single use monopolar probe that combines the technologies of hydrosurgery and argon plasma coagulation (APC) in one instrument. Each function can be activated independently without the need to change instruments. It is used with the hydrosurgical unit Model ERBEJET 2 and an Erbe APC unit in combination with an electrosurgical unit (ESU) VIO Model. The probe is used with endoscopes with a working channel diameter larger than 2.5mm.
The hydrosurgical function is intended to deliver a pressurized fluid to create a fluid cushion beneath the mucosa/mucosal lesion to be ablated which serves as a mechanical and thermal protection layer for the underlying tissue and to reduce the risk of perforations. The electrosurgical (i.e. APC) function is intended for ablation of the lifted mucosa/mucosal lesion. The Hybrid APC probe has a length of 1.9 meters and an outer diameter (OD) of 2.3mm.
The HybridAPC probe is connected to the units via respective cables/tubings. The settings or adjustment of application parameters is performed via the units. Activation of the instrument is done using a footswitch.
# Indications for Use
The HybridAPC probe is intended for the submucosal injection of sterile normal saline to lift mucosa using direct visualization through an endoscope and for HF ablation of the mucosa, with or without lesions, by Argon Plasma Coagulation (APC).
Indications include but are not limited to:
- Barrett's esophagus
- Ulcers
- Arteriovenous Malformations
- Angioma
- Angiodysplasia
- Gastric Antral Vascular Ectasia (GAVE)
- Radiation Proctitis
- Gastroesophageal reflux disease (GERD)
- Post-polypectomy ablation/Post-EMR ablation
The intended use of the subject device and legally marketed predicate device(s) is the same. Both the primary and secondary predicate device are intended to supply the same kind of energy, i.e. monopolar high frequency electrical current via ionized, electrically conductive argon plasma for argon plasma coagulation/ablation of tissue. The reference device supplies (bipolar) high frequency electrical current for coagulation of soft tissue. In addition, the subject and primary predicate device supply sterile normal saline into the submucosa to lift the mucosa/mucosal lesion to be coagulated/ablated as an additional safety feature.
Whereas the primary predicate device is only indicated for lifting and ablation of mucosal lesions, the subject device is indicated for both mucosal lesions and mucosa analogous to the secondary predicate device which has a comparable APC function. The reference device Barrx in combination with compatible instruments which has an equivalent mode of action (i.e.
Page 2 of 7
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Erbe Elektromedizin GmbH
Traditional 510(k) for HybridAPC probe
K243120
application of HF electrical current) is also not limited to lesions.
In addition, various indications were added. To substantiate the modified indications for use statement, real-world evidence in form of clinical data (peer-reviewed literature) was provided in accordance with FDA Guidance "Use of Real-World Evidence to Support Regulatory Decision-Making for Medical Devices", showing that the added indications are well-established and routinely used in clinical practice with the subject device. A safety analysis which is derived from the provided literature concludes that the label expansion doesn't create any increase in device-specific risks and that the reported complications are consistent with expected outcomes from similar procedures. HybridAPC or APC alone is safe and effective for the added indications and the specific use does not introduce new risks which are not normally associated with the general use.
The Barrx RFA Energy Generator in combination with compatible probes is used as a reference device as an example of a RF electrosurgical ablation device which is also cleared for most indications which are added for the subject device.
Comparison of Technological Characteristics
| Characteristics | Predicate Devices | | Reference Device | Subject Device |
| --- | --- | --- | --- | --- |
| | Primary ERBE WaterJet Model ERBEJET® 2 System with HybridAPC Probe (K143306) | Secondary ERBE APC Integrated Filter Probes (K060183) | Barrx FLEX RFA Energy Generator (K160360) | HybridAPC Probe |
| Manufacturer | Erbe Elektromedizin GmbH (Germany) | Erbe Elektromedizin GmbH (Germany) | Covidien LLC | Erbe Elektromedizin GmbH (Germany) |
| Regulation number | 878.4400 | 878.4400 | 878.4400 | 878.4400 |
| Regulatory class | II | II | II | II |
| Product code | GEI; FQH | GEI | GEI | GEI; FQH |
| Indications for Use | The HybridAPC probe is indicated for the induction of sterile normal saline into the submucosa to lift mucosal lesions using direct visualization through an endoscope and for HF ablation of the mucosal lesion by Argon Plasma Coagulation (APC). | The APC Integrated Filter Probes are intended for use in Argon Plasma Coagulation (APC). The devices are used to treat many conditions in endoscopy for various surgical procedures. | The Barrx FLEX RFA Energy Generator is indicated for use in the coagulation of soft tissue. The Barrx FLEX RFA Energy Generator is indicated for use in the coagulation of bleeding and non-bleeding sites in the gastrointestinal tract including but not limited to the esophagus. | The HybridAPC probe is intended for the submucosal injection of sterile normal saline to lift mucosa using direct visualization through an endoscope and for HF ablation of the mucosa, with or without lesions, by Argon Plasma Coagulation (APC). Indications include but are not limited to: |
Page 3 of 7
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Erbe Elektromedizin GmbH
K243120
Traditional 510(k) for HybridAPC probe
| Characteristics | Predicate Devices | | Reference Device | Subject Device |
| --- | --- | --- | --- | --- |
| | Primary
ERBE WaterJet
Model
ERBEJET® 2
System with
HybridAPC
Probe
(K143306) | Secondary
ERBE APC
Integrated Filter
Probes
(K060183) | Barrx FLEX RFA
Energy
Generator
(K160360) | HybridAPC Probe |
| | | | Indications include
Esophageal Ulcers, Mallory-Weiss tears,
Arteriovenous Malformations,
Angiomata, Barrett's Esophagus,
Dieulafoy Lesions and
Angiodysplasia. | • Barrett's esophagus
• Ulcers
• Arteriovenous Malformations
• Angioma
• Angiodysplasia
• Gastric Antral Vascular Ectasia (GAVE)
• Radiation Proctitis
• Gastroesophageal reflux disease (GERD)
• Post-polypectomy ablation/Post-EMR ablation |
| | | | The Barrx FLEX RFA Energy Generator is used with various RF catheters which include:
x Barrx™ 360 RFA Balloon Catheter and Barrx™ Soft Sizing Balloon (K093855)
x Barrx™ 90 RFA Focal Catheter (K093008)
x Barrx™ 60 RFA Focal Catheter (K112454)
x Barrx™ ULTRA Long RFA Focal Catheter (K120431)
x Barrx™ Channel RFA Endoscopic Catheter (K130623)
x Barrx™ RFA Self Sizing Balloon Catheter (K142364)
x Barrx™ Anorectal RFA Wand (150251) | |
| Prescription or OTC | Prescription | Prescription | Prescription | Prescription |
Page 4 of 7
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Erbe Elektromedizin GmbH
K243120
Traditional 510(k) for HybridAPC probe
| Characteristics | Predicate Devices | | Reference Device | Subject Device |
| --- | --- | --- | --- | --- |
| | Primary
ERBE WaterJet
Model
ERBEJET® 2
System with
HybridAPC
Probe
(K143306) | Secondary
ERBE APC
Integrated Filter
Probes
(K060183) | Barrx FLEX RFA
Energy
Generator
(K160360) | HybridAPC Probe |
| Compatibility | Erbe APC 2 with
VIO D or S
series
Erbe APC 3 with
VIO 3
ERBEJET 2 | Erbe APC 300
with ICC series
Erbe APC 2 with
VIO series
Erbe APC 3 with
VIO 3 | Various RFA
instruments | Erbe APC 2 with
VIO D or S series
Erbe APC 3 with
VIO 3
ERBEJET 2 |
| Materials | Stainless Steel,
Tungsten,
Plastics | Stainless steel,
plastics,
tungsten,
ceramics | Unknown | Stainless Steel,
Tungsten, Plastics |
| Probe
Dimensions | Diameter (in
mm): 2.3
Length (in m):
1.9 | Diameter (in
mm): 1.5; 2.3;
3.2
Length (in m):
1.5; 2.2; 3.0 | Shaft diameter
(in mm): 2.5, 4, 7
Catheter shaft
length (in m):
0.85, 1.35, 1.60,
1.62
Electrode length
(in cm): 1.5, 1.57,
2, 4 | Diameter (in mm):
2.3
Length (in m): 1.9 |
| Nozzle/ Jet
diameter | 120 μm | N/A | N/A | 120 μm |
| Max. electrical
load capacity | 5000 Vp | 5000 Vp | Unknown | 5000 Vp |
| Energy delivery | Argon plasma
(Monopolar high
frequency
current)
High pressure
water jet | Argon plasma
(Monopolar high
frequency
current) | Bipolar high
frequency current | Argon plasma
(Monopolar high
frequency current)
High pressure water
jet |
| Pressure range
(Waterjet) | 1 - 80bar (+/-
20%) / 14.5 -
1160.3psi (+/-
20%) | N/A | N/A | 1 - 80bar (+/-20%) /
14.5 - 1160.3psi (+/-
20%) |
| Max. gas flow
rate | 2.4 l/min | 2.4 l/min | N/A | 2.4 l/min |
| Provided
Condition | Sterile, single-
use | Sterile, single-
use | Sterile, single-
use | Sterile, single-use |
| Sterilization
method | Ethylene oxide | Ethylene oxide | Unknown | Ethylene oxide |
Page 5 of 7
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Erbe Elektromedizin GmbH
Traditional 510(k) for HybridAPC probe
K243120
Compared to the primary predicate device, the subject device is the same. Since the initial clearance (K143306), there were no changes to the design, materials, or performance characteristics.
The secondary predicate ERBE APC Integrated Filter Probes (K060183) has the same basic design compared to the subject device. Both devices are flexible, single-use, sterile probes which provide monopolar HF current in form of an argon plasma. There are several variants of the secondary predicate device, one of which has the same OD as the subject device and a similar length. The secondary predicate and subject device have the same max. gas flow rate, electrical load capacity, can be used with the same modes/parent devices and have similar materials. Basically, the subject device is an iteration of the secondary predicate device that adds the capability of providing a waterjet as an additional safety feature, while maintaining the same APC function and performance. Due to these great similarities and the fact that the secondary predicate is cleared with a tool-type intended use (argon-plasma coagulation (of tissue)), it is justifiable to slightly modify the indications for use of the subject device from lifting and ablation of mucosal lesions to lifting and ablation of mucosa/mucosal lesions.
In addition, the systematic literature review and meta-analysis evaluated the safety and performance of the subject device for both non-lesioned and lesioned mucosa. Data from various studies, involving more than 1,900 patients for safety and more than 1,200 patients/lesions for performance outcomes, consistently indicate that use of the subject device on non-lesioned mucosa achieves strong efficacy with no additional risk compared to its established use on lesioned tissue.
The compatible probes which can be used with the reference device Barrx have a similar diameter and shaft length compared to the subject device. Whereas the subject device applies monopolar HF current in form of an argon plasma contact free, the reference device has an electrode which applies bipolar HF current in direct tissue contact. Although there are some technological differences, both the subject and the reference device supply high frequency (HF) electrical current to thermally effect or destroy tissue. Since the reference device in combination with compatible probes is cleared for various indications which are also proposed for the subject device and the mode of action is similar, the Barrx is used as a reference device.
## Summary of non-clinical bench performance testing
Functional testing and design controls to verify both safety and performance of the subject device was performed in compliance with 21 CFR 820.30 to ensure that the subject device performs as intended and meets design specifications.
Tissue testing to validate the lifting function and the thermal effect.
EMC and Electrical safety of the subject device was tested in compliance with FDA recognized versions of IEC 60601-1; IEC 60601-2-2; IEC 60601-2-18: and IEC 60601-1-2, as applicable.
Biocompatibility testing was performed in compliance with ISO 10993-1 and FDA Guidance "Use of International Standard ISO 10993-1, "Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process" to demonstrate biocompatibility of the used materials.
Page 6 of 7
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Erbe Elektromedizin GmbH
Traditional 510(k) for HybridAPC probe
K243120
Sterilization validation was performed in compliance with ISO 11135 and documentation was provided according to FDA Guidance "Submission and Review of Sterility Information in Premarket Notification (510(k)) Submissions for Devices Labeled as Sterile" showing an SAL of 10⁻⁶. EO residual testing and limits are in compliance with ISO 10993-7.
Packaging and shelf-life validation was performed in compliance with ISO 11607-1 and accelerated aged (ASTM F 1980) + real-time aged devices.
# Conclusion
The subject device has the same intended use, the same fundamental design, substantially equivalent performance characteristics, and the same energy source as the predicate device(s).
The added indications for use are justified based on the real-world evidence which was provided according to FDA Guidance "Use of Real-World Evidence to Support Regulatory Decision-Making for Medical Devices". Real-world evidence in form of peer-reviewed literature shows that the device is safe and effective for the proposed indications and doesn't create any new risks compared to the general use of the device. The reference device was chosen to further substantiate the added indications since both the subject and the reference device have a similar mode of action and supply high frequency (HF) electrical current to thermally effect or destroy tissue.
Taken together, the subject device does not raise new or different questions of safety and effectiveness, and the subject device is substantially equivalent to the predicate device(s) for the requested indications for use.
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Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.