Pneumo Dissector Hook

K252957 · Ab Medica Sas · GCJ · Jan 23, 2026 · Gastroenterology, Urology

Device Facts

• Record ID: K252957
• Device Name: Pneumo Dissector Hook
• Applicant: Ab Medica Sas
• Product Code: GCJ · Gastroenterology, Urology
• Decision Date: Jan 23, 2026
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 876.1500
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

The CO2 Pneumo-Dissector is used to dissect planes of soft tissue using pressure regulated, trigger-controlled pulses of medical grade CO2 gas. The device may be used in endoscopic, laparoscopic, and open procedures in which gentle blunt dissection of soft tissue planes is desired. Use the product only in accordance with the instructions provided.

Device Story

Pneumo Dissector Hook is a monopolar electrosurgical instrument with integrated CO2 gas delivery. Device consists of handle and insert linked by nut-screw system; distal end features monopolar electrode hook and gas nozzle. Operated by surgeon in OR during endoscopic, laparoscopic, or open procedures. Surgeon connects device to monopolar generator and external CO2 source via pressure regulator. Push-button on handle triggers CO2 pulses for blunt tissue dissection; electrosurgical capability allows cutting and cauterization. Device facilitates tissue plane separation; provides surgeon with combined mechanical/gas dissection and electrosurgical functionality in one tool. Benefits include reduced need for instrument exchange and precise tissue handling.

Clinical Evidence

Bench testing only. Evaluations included: pneumoperitoneum pressure stability during CO2 pulse delivery; electro-thermal effect comparison on muscle, liver, and kidney tissue; validation of manual and automatic cleaning processes per AAMI TIR-30; packaging integrity per ASTM F1980/D4169; and ethylene oxide sterilization requalification per ISO 11135. Comparative testing against predicate (Hydro-Surg) confirmed equivalent output power and tissue damage zones.

Technological Characteristics

Monopolar electrosurgical hook with integrated CO2 nozzle. Materials: Stainless steel shaft. Dimensions: 200mm/330mm length; 3.5mm/5.0mm diameter. Energy: Monopolar RF (generator) and pressurized CO2 gas (max 60 PSI). Connectivity: Standard banana plug for electrosurgery; tubing for CO2. Sterilization: Ethylene Oxide. Design: Handle with push-button trigger for gas; nut-screw insert attachment.

Indications for Use

Indicated for patients undergoing endoscopic, laparoscopic, or open surgical procedures requiring gentle blunt dissection of soft tissue planes.

Regulatory Classification

Identification

An endoscope and accessories is a device used to provide access, illumination, and allow observation or manipulation of body cavities, hollow organs, and canals. The device consists of various rigid or flexible instruments that are inserted into body spaces and may include an optical system for conveying an image to the user's eye and their accessories may assist in gaining access or increase the versatility and augment the capabilities of the devices. Examples of devices that are within this generic type of device include cleaning accessories for endoscopes, photographic accessories for endoscopes, nonpowered anoscopes, binolcular attachments for endoscopes, pocket battery boxes, flexible or rigid choledochoscopes, colonoscopes, diagnostic cystoscopes, cystourethroscopes, enteroscopes, esophagogastroduodenoscopes, rigid esophagoscopes, fiberoptic illuminators for endoscopes, incandescent endoscope lamps, biliary pancreatoscopes, proctoscopes, resectoscopes, nephroscopes, sigmoidoscopes, ureteroscopes, urethroscopes, endomagnetic retrievers, cytology brushes for endoscopes, and lubricating jelly for transurethral surgical instruments. This section does not apply to endoscopes that have specialized uses in other medical specialty areas and that are covered by classification regulations in other parts of the device classification regulations.

Special Controls

*Classification* —(1)*Class II (special controls).* The device, when it is an endoscope disinfectant basin, which consists solely of a container that holds disinfectant and endoscopes and accessories; an endoscopic magnetic retriever intended for single use; sterile scissors for cystoscope intended for single use; a disposable, non-powered endoscopic grasping/cutting instrument intended for single use; a diagnostic incandescent light source; a fiberoptic photographic light source; a routine fiberoptic light source; an endoscopic sponge carrier; a xenon arc endoscope light source; an endoscope transformer; an LED light source; or a gastroenterology-urology endoscopic guidewire, 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 for the photographic accessories for endoscope, miscellaneous bulb adapter for endoscope, binocular attachment for endoscope, eyepiece attachment for prescription lens, teaching attachment, inflation bulb, measuring device for panendoscope, photographic equipment for physiologic function monitor, special lens instrument for endoscope, smoke removal tube, rechargeable battery box, pocket battery box, bite block for endoscope, and cleaning brush for endoscope. The devices subject to this paragraph (b)(2) are exempt from the premarket notification procedures in subpart E of part 807of this chapter, subject to the limitations in § 876.9.

Predicate Devices

• CO2 Pneumo Dissector (K972647)
• Nezhat-Dorsey Hydrodissection (K913944)
• Hydro-Surg (K961492)

Submission Summary (Full Text)

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FDA U.S. FOOD & DRUG ADMINISTRATION

January 23, 2026

AB Medica SAS
% Joseph Azary
Regulatory Consultant
Aztech Regulatory & Quality LLC
543 Long Hill Avenue
Shelton, Connecticut 06484

Re: K252957
Trade/Device Name: Pneumo Dissector Hook
Regulation Number: 21 CFR 876.1500
Regulation Name: Endoscope And Accessories
Regulatory Class: Class II
Product Code: GCJ
Dated: December 22, 2025
Received: December 22, 2025

Dear Joseph Azary:

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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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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assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely,

Colin K. Chen
Digitally signed by
Colin K. Chen -S
Date: 2026.01.23
12:59:05 -05'00'

Colin K. Chen
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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| 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. | K252957 |
| Please provide the device trade name(s). | |
| Pneumo Dissector Hook | |
| Please provide your Indications for Use below. | |
| The CO2 Pneumo-Dissector is used to dissect planes of soft tissue using pressure regulated, trigger-controlled pulses of medical grade CO2 gas. The device may be used in endoscopic, laparoscopic, and open procedures in which gentle blunt dissection of soft tissue planes is desired. Use the product only in accordance with the instructions provided. | |
| 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) |

Pneumo Dissector Hook

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# 510(k) Summary
# Traditional 510(k)
# Pneumo-Dissection Hook

## 1. SUBMITTER/510(K) HOLDER

AB Medica SAS
Les Petites Quarterees
Mery-Sur-Cher
Centre-Val de Loire
France 18100

Contact Name: Joseph Azary (Aztech Regulatory & Quality LLC)
Email: [e-mail] or [e-mail]
Telephone: [phone]
Date Prepared: January 22, 2026

## 2. DEVICE NAME

Proprietary Name: Pneumo Dissector Hook
Classification Name: Laparoscope and Accessories
Common Name: Pneumo Dissection Instrument
Classification Regulation: 21 CFR 876.1500
Product code: GCJ
Classification: Class 2

## 3. PREDICATE DEVICES

| Predicate Type | Device Name | Manufacturer | 510(k) | Product Code and Regulation |
| --- | --- | --- | --- | --- |
| Primary | CO2 Pneumo Dissector | Cook Urological Inc | K972647 | HET, 884.1720 |
| Secondary #1 | Nezhat-Dorsey Hydrodissection | American Surgical Instruments Inc | K913944 | HET, 884.1720 |
| Secondary #2 | Hydro-Surg | Davol / Bard | K961492 | GCJ, 876.1500 |

Ab Medica SAS
January 22, 2026
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# 4. DEVICE DESCRIPTION

The Pneumo Dissector Hook is a standard monopolar hook (based on design cleared under K140101) that can deliver CO₂ flow on demand during general endoscopy and laparoscopic surgery. It is composed of two parts, a handle and an insert, which are linked using a nut-screw system. Also, the distal part of the instrument has the hook shape which is the monopolar electrode and the gas nozzle. It is a surgically invasive device intended for delivering pressurized CO₂ gas to achieve separation of tissue layers prior to their dissection. The hook insert and tube are offered in lengths of 330mm and 200mm and diameters of 3.5mm and 5.0mm.

Figure 1 Pneumo Dissector Handle and Insert

Figure 2 Pneumo Dissector Handle, Insert and adaptor (accessory)

Ab Medica SAS
January 22, 2026
Traditional 510(k) for Pneumo Dissector Hook

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The handle has a connector for the CO₂ as well as the banana plug or connector for electrosurgery. There is a push button to activate the CO₂.

The nut-screw system is used to link the handle to the insert.

The insert consists of an insulated tube with a hook on the distal end.

## Specifications and Configurations

The hook insert and tube are available in lengths of 330mm and 200mm and diameters of 3.5mm and 5.0mm.

## 5. INTENDED USE / INDICATIONS FOR USE

The CO₂ Pneumo-Dissector is used to dissect planes of soft tissue using pressure regulated trigger-controlled pulses of medical grade CO₂ gas. The device may be used in endoscopic, laparoscopic and open procedures in which gentle blunt dissection of soft tissue planes is desired. Use the product only in accordance with the instructions provided.

Ab Medica SAS
January 22, 2026
Traditional 510(k) for Pneumo Dissector Hook

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# 6. TECHNOLOGICAL CHARACTERISTICS AND SUBSTANTIAL EQUIVALENCE

Substantial Equivalence Comparison Chart

| Technological Characteristic | Subject Device Pneumo-Dissection Hook | Primary Predicate Cook K972647 | Secondary predicate #1 American Surgical Instruments - HyNezhat-Dorsey HydroDissection System K913944 | Secondary predicate #2 Bard Hydro-Surg irrigation system K961492 | Comments |
| --- | --- | --- | --- | --- | --- |
| Indications for Use | The CO2 Pneumo Dissector is used to dissect planes of soft tissue using pressure regulated, trigger-controlled pulses of medical grade CO2 gas. The device may be used in endoscopic, laparoscopic and open procedures in which gentle, blunt dissection of soft tissue planes is desired. Use the product only in accordance with the instructions provided. | The CO2 Pneumo Dissector is used to gently dissect planes of soft tissue using short, pressure regulated, trigger-controlled pulses of CO2 gas. The device may be used in both open and laparoscopic procedures in which gentle, blunt dissection of soft tissue planes is desired. | Provide controlled powered irrigation to and aspiration of fluids from the operative site during laparoscopic procedures. It may also be used for resection of filmy adhesions (i.e. hydro dissection) and peritoneal lavage. | Controlled irrigation / aspiration during laparoscopic surgical procedures. It may also be used for resection of filmy adhesions (hydro-dissection) and peritoneal lavage. | Same
All devices can be used for dissection.
The Cook and AB Medica devices used CO2 (pneumo-dissection), whereas the Nezhat-Dorsey and Hydro-Surg use water (hydro-dissection). |
| Product Code Regulation | GCJ | HET | HET | GCJ | The subject device and secondary predicate #2 use the identical product code.
Primary Predicate and Secondary |

Ab Medica SAS
January 22, 2026
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| | | | | | predicate #1 uses a different code. |
| --- | --- | --- | --- | --- | --- |
| Dissection Method | Pressurized CO2 Gas | Pressurized CO2 Gas | Pressurized Fluid | Pressurized Fluid | All use external materials (water or gas) for dissection. The subject device and secondary predicate utilize CO2 whereas the primary predicate uses water. |
| Materials | Stainless Steel Shaft | Stainless Steel Shaft | Stainless Steel Shaft | Stainless Steel Shaft | SAME |
| Length | 330mm (33cm) 200mm (20cm) | 20cm – 35cm | 28cm | 28cm 33cm 46cm | SAME |
| Maximum Recommended Pressure | 60 PSI | 60 PSI | Not known | Not known | SAME The maximum pressure for subject device and predicate device is the same |
| Pressure Regulator | Use of external pressure regulator | Pressure regulator built into the handle which limited pressure to 60 psi | Is capable of high-pressure irrigation rates, but recommended uses minimum pressure necessary | Is capable of high-pressure irrigation rates, but recommended uses minimum pressure necessary | SAME The subject device and predicate device use regulator mechanisms |
| Sterilization | Ethylene Oxide | Ethylene Oxide | Ethylene Oxide | Ethylene Oxide | SAME |
| Shaft Diameter | 3.5-5.0mm diameter | 3 – 10mm diameter | 5-10mm diameter | 5-10mm diameter | SIMILAR |
| Connecting Tube | Uses tubing to withstand maximum pressure | Uses tubing to withstand maximum pressure | Uses tubing to withstand maximum pressure | Uses tubing to withstand maximum pressure | SAME |
| Handle | Handle with push button to deliver CO2 | Handle with trigger to deliver CO2 | Trumpet valve with triggers to control flow | Trumpet valve with triggers to control flow | SAME |
| Electrosurgery Capability | Yes, the device has monopolar capability and can be used for electrosurgery. This was | No | Yes | Yes | The subject device has electrosurgery capability that has already been cleared under 510(k) |

Ab Medica SAS
January 22, 2026
Traditional 510(k) for Pneumo Dissector Hook

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| | originally cleared under K140101. | | | | K140101. |
| --- | --- | --- | --- | --- | --- |
| Equivalence testing | The device was subject to performance testing compared to the Hydro-Sur / Nezhat Dorsey system and found to have equivalent performance | Not Available** | Yes. The device was subject to performance testing compared to the Hydro-Sur / Nezhat Dorsey system and found to have equivalent performance | Yes. The device was subject to performance testing compared to the Hydro-Sur / Nezhat Dorsey system and found to have equivalent performance | SAME |

## Operational and Technological Characteristics

The subject device is a pneumo-dissection hook indicated for diagnostic and therapeutic endoscopic, laparoscopic and open procedures. It consists of several components and accessories, including a handle, pneumo dissector hook, a $\mathrm{CO}_{2}$ regulator and an adaptor. The pneumo-dissector is designed to be connected to a monopolar power generator using a cable, as well as to a CO2 source using a regulator and tubing. The device is connected to a regulator, which limits the pressure. The device has capability of electro-surgical cutting and cauterization and pneumodissection.

The primary predicate is a pneumodissection device whereas the secondary predicates are laparoscopic irrigation systems indicated to provide controlled powered irrigation of fluids to the operative site during laparoscopic procedures.

The secondary predicates consist of handpiece, electrical pump and probe tips. The handpiece uses a trumpet valve, which allows for variable flow control. The electrical pump has an ON/OFF switch for pump activation and is connected to the handpiece with conjoined tubing.

## Summary of Similarities and Differences

The Subject Device has equivalent material composition, similar indications for use and system components as the predicates.

The subject device and primary predicate devices are both used for pneumodissection. The subject device and the secondary predicates utilize handheld designs, with controls built into the handheld piece. The subject device utilizes a handle, which has a button for control $\mathrm{CO}_{2}$ emission and is designed to be held in a wrap grip. The secondary predicates have controls on the handpiece which can toggle the flow of water. The secondary predicates are designed to be held in either a pistol or trumpet grip and have multiple

Ab Medica SAS
January 22, 2026
Traditional 510(k) for Pneumo Dissector Hook

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buttons which allow for variable flow control and smoke evacuation. Though the subject device does not have controls for variable CO2 pressure on the handle, the pressure of the CO2 is controlled by a pressure regulator, which is attached to the handle via an adaptor. The CO2 regulator is pre-set with a maximum operating pressure of 60 PSI.

Both devices utilize single use inserts which are provided sterile via ethylene oxide. The subject device has a hook insert which is available in diameters of 3.5mm and 5.0mm and a length of 200mm and 330mm. The primary predicate offers probe tips with identical dimensions, though additional options are available.

# 7. PERFORMANCE TESTING

The device was subjected to the testing outlined below.

| Peritoneum pressure with Pneumo-Dissector Hook action | The testing was a benchtop evaluation of pressure barrier, insufflator and standard. The pressure regulator of insufflator was set at 10mmhg. There will be 3 recording periods in 30 seconds. The use of the Pneumo Dissector hook must not impact the pressure of the pneumoperitoneum. | Check the gas flow by the use of the Pneumo Dissector hook will have no influence on peritoneum pressure regulation done by the laparoscopic insufflator. | PASS - The pneumodissector has no impact on the pressure of the pneumoperitoneum. The results meet the acceptance criteria. |
| --- | --- | --- | --- |
| Electro-thermal effect of the Pneumo-Dissector Hook | The testing will include a generator with 5mm range monopolar hook 5mm range pneumodissection hook handle and insert. The testing included testing on muscle, liver and kidney using different power settings, time and modes. | To determine the equivalence of the electro-thermal effect of the Pneumo Dissector hook compared to a classic 5mm range monopolar hook. | The test shows that the pneumodissection insert has equivalent electro-thermal effect to the C05 range insert. |

Ab Medica SAS
January 22, 2026
Traditional 510(k) for Pneumo Dissector Hook

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| Validation of automatic cleaning process | Visual inspection, measurement of TOC, and acceptable residues. After cleaning the devices must be absent of macroscopic soil, must have equal or less than 0.5 mg/device of TOC, and must have equal or less than 14 mg/device of cleaning agent residues. | To check the efficiency of the automatic cleaning process recommended by AB Medica SAS using worst case medical device. | The efficiency of the automatic cleaning process recommended by AB Medica SAS confirmed that visual, TOC and residual testing met requirements. |
| --- | --- | --- | --- |
| Validation of manual cleaning process | The test device will be inoculated with an organic soil of bovine serum, sheep blood and pork mucin. The device will be cleaned using Manual Cleaning Instructions. The acceptance criteria include meeting AMI TIR-30 guidelines for protein residuals and hemoglobin residuals. | To determine the efficacy of the specified cleaning procedure for test articles by a Total Protein and Hemoglobin Reduction Method. | The manual cleaning method met the AAMI TIR-30 guidelines for protein residuals and hemoglobin residuals. |
| Packaging Performance Testing for Sterile Medical Devices | Devices in packaging were subject to accelerated aging to simulate 3 years. The devices were conditioned at high temperatures and high humidity. Then subjected to drop testing, stacking, load vibration, altitude, random vibration and concentrated shock tests.
The devices were subjected to visual inspection for seal integrity, dye penetration, peel test | To verify the integrity of packaging after accelerated aging, simulated transport conditions including visual inspection, peel testing and dye penetrant testing. | After undergoing accelerated aging according to ASTM F1980, 8 boxes were tested in transport according to ASTM D4169-16. After transport simulation, sealing validation tests were carried out on 3 x 81 samples according to the test methods defined in ISO 11607-1. The testing for CAR 23 111 passed visual inspection, integrity testing, peelability sealing, and resistance of sealing testing. |

Ab Medica SAS
January 22, 2026
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| Ethylene Oxide Sterilization Requalification | The testing will be conducted in accordance with ISO 11135 to ensure that the sterilization process produces sterile medical devices. | The purpose of the study was to requalify the ethylene oxide sterilization process following change to packaging subcontractor, introduction of new devices and change of definition of maximum load. | The testing confirmed that the cycle including 180 minutes of conditioning and 240 minutes of gas exposure duration is requalified for routine sterilizations (providing sterile devices) of the devices from the configurations of minimal load to the maximal load in the autoclave at the contract sterilization. |
| --- | --- | --- | --- |
| Equivalence Test | The testing includes the subject device and the Bard HydroSurg with hook (Nezhat). The comparison was to include measuring output delivered at end of both hooks at varying loads (between 100 to 2000 ohms) and evaluate of thermal damage to muscle, liver and kidney tissue following pneumo or hydro dissection and cautery. | The purpose of the testing was to demonstrate equivalence between the subject device and available predicate (Bard Hydro-Surg with Nezhat Dorsey hook). | The testing confirmed that the output power delivered at end of the tips resulted in equivalent values between the subject device and secondary predicate. The testing also confirmed that the testing using muscle, liver and kidney tissue in cut modes (min, max and average) using Pneumo Dissector or hydro-dissection and cautery resulted in equivalent damage zones. |

# 8. CONCLUSION

Any differences in the technological characteristics between the subject device, the predicate device, and secondary predicates do not raise different questions of safety or effectiveness. The data included in this submission demonstrates substantial equivalence to the predicate and secondary predicates listed above.

Overall, the subject devices have the following similarities to the primary predicate and secondary predicates: similar intended use, similar operating principles, incorporate identical materials, sterilized using similar materials and processes

The basis for the belief that the subject device is substantially equivalent to the predicate devices is summarized in the substantial equivalence table.

Ab Medica SAS
January 22, 2026
Traditional 510(k) for Pneumo Dissector Hook