K251235 · Baisheng Medical Co., Ltd. · GEI · Jun 19, 2025 · General, Plastic Surgery
Device Facts
Record ID
K251235
Device Name
Electrosurgical Pads
Applicant
Baisheng Medical Co., Ltd.
Product Code
GEI · General, Plastic Surgery
Decision Date
Jun 19, 2025
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4400
Device Class
Class 2
Attributes
Therapeutic, Pediatric
Indications for Use
Electrosurgical Pads are Neutral Electrode which is also known as plate, plate electrode, passive, return, or dispersive electrode. They are indicated for use to adhere to the patient over the entire pad surface to complete an electrical circuit during electrosurgery between the electrosurgical generator, the active electrode and the patient. Solid Electrosurgical Pads are for use with generators that do not have a Contact Quality Monitoring System (CQMS). Split Electrosurgical Pads are for use with generators that have a CQMS (i.e. REM, ARM, NESSY, etc.).
Device Story
Single-use, non-sterile dispersive electrode (neutral electrode) used in monopolar electrosurgery. Device adheres to patient skin to provide low-impedance return path for RF current to electrosurgical generator, preventing unintended burns. Available in solid (for generators without Contact Quality Monitoring System) and split (for generators with CQMS) configurations. May be corded or non-corded. Operated by surgical staff in clinical settings. Output is electrical circuit completion; device performance ensures safe current return. Benefits include reduced risk of patient RF burns during surgery.
Clinical Evidence
No clinical data included. Bench testing only: performance testing per IEC 60601-2-2, electrical safety/EMC per IEC 60601-1 and IEC 60601-1-2, and biocompatibility per ISO 10993-1, -5, -10, and -23.
Technological Characteristics
Conductive resin (Sodium Polyacrylate, Glycerin, Water, Potassium Chloride) on adhesive backing. Available in corded/non-corded, solid/split configurations. Dimensions vary by patient weight (<5kg, 5kg-15kg, >15kg). Complies with IEC 60601-2-2, IEC 60601-1, IEC 60601-1-2. Biocompatibility per ISO 10993. Non-sterile, single-use.
Indications for Use
Indicated for patients requiring monopolar electrosurgery to complete the electrical circuit between the generator, active electrode, and patient. Available in sizes for patients <5kg, 5kg-15kg, and >15kg.
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.
Valleylab REM Polyhesive Infant Patient Return Electrode (K160290)
Valleylab REM Polyhesive Adult Patient Return Electrode (K822572)
Valleylab REM Polyhesive Adult Cordless Patient Return Electrode (K861036)
Submission Summary (Full Text)
{0}
FDA U.S. FOOD & DRUG ADMINISTRATION
June 19, 2025
Baisheng Medical Co., Ltd.
Haley Lin
Registration Specialist
No.11 Fusheng Road, Xinhui District 529100
Jiangmen, Guangdong 529100
China
Re: K251235
Trade/Device Name: Electrosurgical Pads
Regulation Number: 21 CFR 878.4400
Regulation Name: Electrosurgical Cutting And Coagulation Device And Accessories
Regulatory Class: Class II
Product Code: GEI
Dated: April 22, 2025
Received: April 22, 2025
Dear Haley Lin:
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.
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"
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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K251235 - Haley Lin
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(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-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).
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K251235 - Haley Lin
Page 3
Sincerely,
James H. Jang -S
Digitally signed by
James H. Jang -S
Date: 2025.06.19
16:01:45 -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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Electrosurgical Pads
Page 8 of 37
| 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. | K251235 | ? |
| Please provide the device trade name(s). | | ? |
| Electrosurgical Pads | | |
| Please provide your Indications for Use below. | | ? |
| Electrosurgical Pads are Neutral Electrode which is also known as plate, plate electrode, passive, return, or
dispersive electrode. They are indicated for use to adhere to the patient over the entire pad surface to
complete an electrical circuit during electrosurgery between the electrosurgical generator, the active
electrode and the patient.
Solid Electrosurgical Pads are for use with generators that do not have a Contact Quality Monitoring
System (CQMS). Split Electrosurgical Pads are for use with generators that have a CQMS (i.e. REM, ARM,
NESSY, etc.). | | |
| Please select the types of uses (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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K251235
Traditional 510(k) Submission
Electrosurgical Pads
510(k) Summary
Electrosurgical Pads
Baisheng Medical Co., Ltd.
Date prepared: Apr. 22, 2025
510(k) submitter ADMINISTRATIVE INFORMATION
Manufacturer Name: Baisheng Medical Co., Ltd.
Address: No.11 Fusheng Road, Xinhui District 529100 Jiangmen City, Guangdong,
PEOPLE'S REPUBLIC OF CHINA
General Manager: Mr. Chen Xi
E-mail: renzhen@bs0750.com
Official Contact Person: Haley Lin-Registration Specialist
E-mail: haley@bs0750.com
SUBJECT DEVICE NAME AND CLASSIFICATION
Trade/Device Name: Electrosurgical Pads
Regulation Name: Electrosurgical Cutting and Coagulation Device and Accessories
Regulation Number: 21 CFR 878.4400
Regulation Class: Class II
Product Code: GEI
Review Panel: General & Plastic Surgery
PREDICATE DEVICE INFORMATION
The Subject device in this submission is substantially equivalent in indications for use and design principles to the following predicate device
| 510(k) Number | Predicate Device | Company Name |
| --- | --- | --- |
| K233615 | Electrosurgical Pads | Baisheng Medical Co., Ltd. |
REFERENCE DEVICES INFORMATION
| 510(k) Number | Predicate Device | Company Name |
| --- | --- | --- |
| K160290 | Valleylab REM Polyhesive Infant Patient Return Electrode | Covidien LLC |
| K822572 | Valleylab REM Polyhesive Adult Patient Return Electrode | Covidien LLC |
| K861036 | Valleylab REM Polyhesive Adult Cordless Patient Return Electrode | Valleylab, INC. |
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K251235
Traditional 510(k) Submission
Electrosurgical Pads
# DEVICE DESCRIPTION
Electrosurgical Pads are single-use, non-sterile dispersive electrode with or without a pre-attached cord. This devices are used in monopolar surgery to complete the electrical circuit with the generator. Providing a low-impedance path back to the generator through the return electrode helps to prevent unintended RF burns. The Electrosurgical Pads are designed to be compatible with the return electrode monitoring function of compatible OBS generators.
# INDICATIONS FOR USE
Electrosurgical Pads are Neutral Electrode which is also known as plate, plate electrode, passive, return, or dispersive electrode. They are indicated for use to adhere to the patient over the entire pad surface to complete an electrical circuit during electrosurgery between the electrosurgical generator, the active electrode and the patient.
Solid Electrosurgical Pads are for use with generators that do not have a Contact Quality Monitoring System (CQMS). Split Electrosurgical Pads are for use with generators that have a CQMS (i.e. REM, ARM, NESSY, etc.).
# EQUIVALENCE TO MARKETED DEVICE
The subject device is highly similar to the predicate device with respect to Indications for Use, and technological principles. The comparison tables at below comparing the indications for Use and technological characteristics of the subject and predicate/reference devices.
Indications for Use Between the Subject Device and Predicate Device
| Device | Subject Device | Predicate Device | Discussion |
| --- | --- | --- | --- |
| Indications for use statement | Electrosurgical Pads are Neutral Electrode which is also known as plate, plate electrode, passive, return, or dispersive electrode. They are indicated for use to adhere to the patient over the entire pad surface to complete an electrical circuit | Electrosurgical Pads are Neutral Electrode which is also known as plate, plate electrode, passive, return, or dispersive electrode. They are indicated for use to adhere to the patient over the entire pad surface to complete an electrical circuit | The subject device and predicate device's indications for use are the same. |
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K251235
Traditional 510(k) Submission
Electrosurgical Pads
| | during electrosurgery between the electrosurgical generator, the active electrode and the patient. Solid Electrosurgical Pads are for use with generators that do not have a Contact Quality Monitoring System (CQMS). Split Electrosurgical Pads are for use with generators that have a CQMS (i.e. REM, ARM, NESSY, etc.). | during electrosurgery between the electrosurgical generator, the active electrode and the patient. Solid Electrosurgical Pads are for use with generators that do not have a Contact Quality Monitoring System (CQMS). Split Electrosurgical Pads are for use with generators that have a CQMS (i.e. REM, ARM, NESSY, etc.). | |
| --- | --- | --- | --- |
3 / 12
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K251235
Traditional 510(k) Submission
Electrosurgical Pads
Indications for Use Between the Subject Device and Reference Devices
| Device | Subject Device | Reference Device 1 | Reference Device 2 | Reference Device 3 | Discussion |
| --- | --- | --- | --- | --- | --- |
| Indications for use statement | Electrosurgical Pads are Neutral Electrode which is also known as plate, plate electrode, passive, return, or dispersive electrode. They are indicated for use to adhere to the patient over the entire pad surface to complete an electrical circuit during electrosurgery between the electrosurgical generator, the active electrode and the patient. Solid Electrosurgical Pads are for use with generators that do not have a Contact Quality Monitoring System (CQMS). Split Electrosurgical Pads are for | The REM Polyhesive Infant Patient Return Electrode is a single use, non-sterile dispersive electrode with a preattached cord. The electrode adheres to the patient over its entire surface. Its purpose is to complete the electrosurgical circuit between the generator, the active electrode, and the patient. The product is used for general monopolar electrosurgery on newborns, infants, and children weighing between approximately 6 and 30 lb. | The E7507 and E7507DB patient return electrodes are single use, non-sterile dispersive electrodes with a preattached cord. The electrode adheres to the patient over its entire surface. Its purpose is to complete the electrosurgical circuit between the generator, the active electrode, and the patient. These products are used for general monopolar electrosurgery on patients of approximately 30 pounds or greater. | The E7508, E7509, and E7509B patient return electrodes are single use, non-sterile dispersive electrodes intended to be used with the E0560 or E0560E patient return electrode reusable cord/clamp assemblies. The electrode adheres to the patient over its entire surface. The cord connects and clamps onto the electrode in order to complete the electrosurgical circuit between the generator, the active electrode, and the patient. These products are used for | 1. The subject device and reference device's indications for use are highly similar. All are intended to complete the electrosurgical circuit between the generator, the active electrode, and the patient.
2. Only differ with the weight range and the pre-attached cord. The subject device intended for three weight range patients, with no upper body weight limit. The reference device 2 &3 are for patients weighing over 30 pounds, while reference |
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K251235
Traditional 510(k) Submission
Electrosurgical Pads
| | use with generators that have a CQMS (i.e. REM, ARM, NESSY, etc.). | | | general monopolar electrosurgery on patients of approximately 30 pounds or greater. | device 1 is for patients weighing between approximately 6 and 30 lb (6 and 30pounds).
3. The reference device 1 &2 both are with a pre-attached cord, while the reference device 3 is cordless, and it need to be combination used with reusable cord/clamp. |
| --- | --- | --- | --- | --- | --- |
5 / 12
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K251235
Traditional 510(k) Submission
Electrosurgical Pads
Technological Characteristics
| Parameter | Subject Device | Predicate Device (K233615) | Reference Device 1 (K160290) | Reference Device 2 (K822572) | Reference Device 3 (K861036) | Differences Discussion |
| --- | --- | --- | --- | --- | --- | --- |
| Device Name | Electrosurgical Pads | Electrosurgical Pads | Valleylab REM
Polyhesive Infant
Patient Return
Electrode | Valleylab REM
Polyhesive Adult
Patient Return
Electrode | Valleylab REM
Polyhesive Adult
Cordless Patient Return
Electrode | / |
| Product Code | GEI | GEI | GEI | GEI | GEI | Same |
| Regulation Number | 21 CFR 878.4400 | 21 CFR 878.4400 | 21 CFR 878.4400 | 21 CFR 878.4400 | 21 CFR 878.4400 | Same |
| Regulation Name | Electrosurgical cutting and coagulation device and accessories | Electrosurgical cutting and coagulation device and accessories | Electrosurgical cutting and coagulation device and accessories | Electrosurgical cutting and coagulation device and accessories | Electrosurgical cutting and coagulation device and accessories | Same |
| Regulatory Class | Class II | Class II | Class II | Class II | Class II | Same |
| Technology | Conductive resin that adheres to the patient’s skin and conducts electrical current away from the patient’s body | | | | | Same |
| Model | GBS-Db4030,
GBS-Db4030c,
GBS-Db4030c-45
GBS-Db4030bc,
GBS-Db4030nc, | See below table 6 | E7510-25,
E7510-25DB | E7507, E7507-DB | E7508, E7509, E7509B | / |
6 / 12
{10}
K251235
Traditional 510(k) Submission
Electrosurgical Pads
| | GBS-Dm4020, GBS-Dm4020c | | | | | |
| --- | --- | --- | --- | --- | --- | --- |
| Corded or Non-corded | Corded and Non-corded | Corded and Non-corded | Corded | Corded | Non-corded | Same. The subject device include corded and non-corded, is the same as the predicate device, and the reference device 1 & 2 have cord, while the reference device 3 is cordless. |
| Applicable Patient Weight | <5kg: GBS-Db4030nc 5kg to 15kg: GBS-Db4030bc >15kg: GBS-Db4030, GBS-Db4030c, GBS-Db4030c-45, GBS-Dm4020, GBS-Dm4020c: | Neonates:<5kg Children:>5kg Children and Adult:>5kg, <15kg Adult:>15kg See below table 6 | 6 and 30lb (2.7kg to 13.6kg) | 30lb or greater (>13.6kg) | 30lb or greater (>13.6kg) | Same. The subject device and predicate device both are intended for three weight range patients. But is different with the reference devices, reference devices only for single weight range patients. |
| Overall Dimensions | <5kg: 5.35*9.85=52.3cm2 5kg to 15kg: 9.5*12=114cm2 | See below table 6 | 9.5x12.1cm=114.95cm 2 From brochure | 18.3x11.4cm=208.62cm2 From brochure | 18.3x11.4cm=208.62cm2 From brochure | Highly similar. The subject device intended for three weight range population patients, so it have three sizes applicable. The predicate device |
7 / 12
{11}
K251235
Traditional 510(k) Submission
Electrosurgical Pads
| | >15kg:18.4*11.5=211.6cm2 | | | | | have fifteen sizes applicable.
The reference devices only have single size respectively. Highly similar to the subject device.
The pads are intended to carry current in application, the Electrical Safety & EMC tests have been conducted and conformed to standards. So the size has no influence on safety and performance. |
| --- | --- | --- | --- | --- | --- | --- |
| Conductive Surface Area | <5kg:32.76cm2
5kg to 15kg:75cm2
>15kg:141.3cm2 | Neonates:43cm2
Children:87cm2
Children and Adult:135-307cm2
Adult:100-144cm2
See below table 6 | 75cm2
From brochure | 137cm2
From brochure | 1373cm2
From brochure | Highly similar. Some model of the predicate device have larger surface area, but the subject device are the same as the reference devices.
Comply with clauses 201.15.101.4 of IEC 60601-2-2. Test results verified the differences do not raise additional safety or effectiveness concerns. |
| Frame Width | <5kg:0.7cm±2cm
5kg to 15kg:1cm±2cm
>15kg:1.2cm±2cm | / | 0.95cm
From brochure | 1.11cm
From brochure | 1.11cm
From brochure | Different. The subject device has a frame while the predicate device has no frame. But it is the same as |
8 / 12
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K251235
Traditional 510(k) Submission
Electrosurgical Pads
| | | | | | | reference devices, only differ with the dimension. A frame is adhered around the border to secure the gel to prevent them from unraveling, rotting, or falling off the patient's skin during operation. The difference have been evaluated through appropriate biocompatibility and performance testing and met the standards. |
| --- | --- | --- | --- | --- | --- | --- |
| Patient Contact Materials | Conductive gel (Sodium Polyacrylate, Propanetriol (Glycerin), Water, Potassium Chloride) | Conductive gel (Sodium Polyacrylate, Propanetriol (Glycerin), Water, Potassium Chloride) | Conductive gel (adhesive polymer matrix, water, electrolytes, blue colorant, and preservative) Pressure-sensitive adhesive border Silicone-coated paper | Unknown | Unknown | Same as predicate device. Similar to reference devices. The difference have been evaluated through biocompatibility testing and met the standards. |
| Biocompatibility Properties | Comply with the standards of ISO 10993 | Comply with the following standards: ISO 10993-5, | Be tested and conform to ISO 10993. Be subjected to | Unknown | Unknown | Same. All products had met the requirements. |
9 / 12
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K251235
Traditional 510(k) Submission
Electrosurgical Pads
| | | ISO 10993-10, ISO 10993-23 | cytotoxicity, sensitization, and primary skin irritation tests. | | | |
| --- | --- | --- | --- | --- | --- | --- |
| Safety and Performance Properties | Comply with relevant clauses of IEC 60601-2-2, IEC 60601-1, IEC 60601-1-2 | Comply with the following standards: IEC 60601-1:2005, IEC 60601-2-2:2017, IEC 60601-1-2:2014 | Conform to IEC 60601-1:2005, IEC 60601-2-2:2009, IEC 60601-1-2:2007 and 2014 | Unknown | Unknown | Same. All the testing were conducted in accordance with latest version standards. |
| Shelf life | 3 years | 3 years | Two years | Two years | Two years | Same. But different with reference devices. The real time aging verification for subject device has been conducted and conformed to three years shelf life criteria. |
| Single use | Yes | Yes | Yes | Yes | Yes | Same |
| Sterility | Non-sterile | Non-sterile | Non-sterile | Non-sterile | Non-sterile | Same |
10 / 12
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K251235
Traditional 510(k) Submission
Electrosurgical Pads
## CLINICAL TESTING
The performance of Electrosurgical Pads in the clinical environment has been well established. No clinical data is included in this submission.
## NON-CLINICAL PERFORMANCE TESTING
Performance test, Electrical safety test, Electromagnetic compatibility(EMC) test and biocompatibility test have been done to demonstrate the safety and performance of subject device. The test details as follows:
1. Performance test was performed according to:
IEC 60601-2-2: 2017 Medical electrical equipment - Part 2-2: Particular requirements for the basic safety and essential performance of high frequency surgical equipment and high frequency surgical accessories, and, Final Products Inspection Protocol.
2. Electrical safety test, Electromagnetic compatibility(EMC) test Compliance with
- IEC 60601-1-2: 2014/ AMD1: 2020 Medical Electrical Equipment – Part 1-2: General Requirements for Safety – Collateral Standard: Electromagnetic Compatibility – Requirements and Tests, and,
- IEC 60601-1: 2005+A1: 2012+A2: 2020 Medical Electrical Equipment - Part 1: General Requirements for Basic Safety and Essential Performance.
3. A biological evaluation was performed on the Subject device according to ISO 10993-1:2018 Biological Evaluation of Medical Devices – Part 1: Evaluation and Testing Within a Risk Management Process
4. Biocompatibility test was performed according to:
- ISO 10993-5 Biological evaluation of medical devices - Part 5: Tests for in vitro cytotoxicity, and,
- ISO 10993-10 Biological evaluation of medical devices - Part 10: Tests for skin sensitization, and,
- ISO 10993-23 Biological evaluation of medical devices - Part 23: Tests for irritation.
Non-clinical performance testing of the Subject device met the acceptance criteria for each validation and test described above. This non-clinical performance testing demonstrates that the Subject device is suitable for intended use.
## CONCLUSION
Since the Indications for Use statements for the subject and predicate/reference devices are highly similar, differing slightly only in structure comparing to predicate device but same as reference devices. Additionally the technological characteristics of
{15}
K251235
Traditional 510(k) Submission
Electrosurgical Pads
the subject device are the same or highly similar to the predicate device with any differences mitigated through non-clinical performance testing.
Overall, these similarities between the subject and predicate devices, support a determination of substantial equivalence.
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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.