Who is the manufacturer of CRYOMATIC MKII CONSOLE, CRYOMATIC MKII PROBES, DISPOSABLE CRYO PROBES?

Keeler, Ltd. filed the 510(k) submission for CRYOMATIC MKII CONSOLE, CRYOMATIC MKII PROBES, DISPOSABLE CRYO PROBES (K131787).

What is the FDA product code for CRYOMATIC MKII CONSOLE, CRYOMATIC MKII PROBES, DISPOSABLE CRYO PROBES?

HRN. It is classified under 21 CFR 886.4170 as a Class 2 device in the Ophthalmic panel.

What is the regulatory pathway for CRYOMATIC MKII CONSOLE, CRYOMATIC MKII PROBES, DISPOSABLE CRYO PROBES?

510(k) clearance (submission type: Special).

What are the predicate devices for CRYOMATIC MKII CONSOLE, CRYOMATIC MKII PROBES, DISPOSABLE CRYO PROBES?

Cryomatic System and Probes (K062412); Cryomatic System and Probes (K112093).

Who can help prepare an FDA 510(k) submission like CRYOMATIC MKII CONSOLE, CRYOMATIC MKII PROBES, DISPOSABLE CRYO PROBES?

Innolitics — a medical-device software consultancy — provides regulatory and engineering support for FDA 510(k) submissions. See https://innolitics.com/services/510ks/ or contact https://innolitics.com/contact.

CRYOMATIC MKII CONSOLE, CRYOMATIC MKII PROBES, DISPOSABLE CRYO PROBES

K131787 · Keeler, Ltd. · HRN · Dec 23, 2013 · Ophthalmic

Device Facts

Record ID	K131787
Device Name	CRYOMATIC MKII CONSOLE, CRYOMATIC MKII PROBES, DISPOSABLE CRYO PROBES
Applicant	Keeler, Ltd.
Product Code	HRN · Ophthalmic
Decision Date	Dec 23, 2013
Decision	SESE
Submission Type	Special
Regulation	21 CFR 886.4170
Device Class	Class 2
Attributes	Therapeutic, Pediatric

Intended Use

The Keeler Cryomatic System and probes are for use in ophthalmic surgery such as cryopexy for retinal detachment, cyclo destructive procedures in refractory glaucoma, extraction of fragments within the vitreous cavity, cataract extraction, cryo destruction of lash follicles for trichiasis and treatment of retinopathy of prematurity (ROP).

Device Story

Cryomatic MKII is a self-contained ophthalmic cryosurgical system consisting of a console, footswitch, and various reusable or disposable stainless steel probes. System uses high-pressure cryogen gas (CO2 or N2O) supplied to probe tips; rapid gas expansion via Joule-Thompson principle creates freezing temperatures for surgical tissue destruction or adhesion. Console features LCD screen, membrane keys, and pneumatic control module with solenoid valves. Operated by surgeons in clinical settings. Modification simplifies probe coupling mechanism to accept both reusable and disposable probes without adaptors. System provides real-time operating state, gas cylinder status, and fault information to the user. Benefits include precise cryo-application for retinal, glaucoma, and cataract procedures.

Clinical Evidence

Bench testing only. Verification tests evaluated probe external temperature, repeatability, iceball growth capability, defrost performance, and tractive power. Electrical safety and electromagnetic compatibility were verified against IEC 60601-1 and IEC 60601-1-2 standards. No clinical data presented.

Technological Characteristics

Desktop console with optional trolley; stainless steel probes with electron beam welded tips; CO2 or N2O cryogen; Joule-Thompson cooling principle; footswitch-controlled solenoid valves; embedded microcontroller; mains powered; ethylene oxide (disposable) or steam (reusable) sterilization.

Indications for Use

Indicated for ophthalmic surgery including retinal detachment cryopexy, refractory glaucoma cyclo-destructive procedures, vitreous cavity fragment extraction, cataract extraction, trichiasis lash follicle cryo-destruction, and retinopathy of prematurity (ROP) treatment.

Regulatory Classification

Identification

A cryophthalmic unit is a device that is a probe with a small tip that becomes extremely cold through the controlled use of a refrigerant or gas. The device may be AC-powered. The device is intended to remove cataracts by the formation of an adherent ice ball in the lens, to freeze the eye and adjunct parts for surgical removal of scars, and to freeze tumors.

Predicate Devices

Cryomatic System and Probes (K062412)
Cryomatic System and Probes (K112093)

Related Devices

K160591 — D.O.R.C. Disposable Cryo Probe · Dutch Ophthalmic Research Center International BV · Jan 23, 2017
K062412 — CRYOMATIC · Keeler Instruments, Inc. · Nov 6, 2006
K162756 — PHAKOS Disposable Retinal Cryo Probe · Phakos · May 3, 2017
K202038 — CryoTreQ · VitreQ BV · Dec 30, 2020
K151041 — ERBECRYO 2 Cryosurgical Unit with accessories · Erbe USA, Inc. · May 4, 2015

Submission Summary (Full Text)

{0}------------------------------------------------ K131787 Image /page/0/Picture/1 description: The image shows a date, which is December 3, 2013. The month is abbreviated as DEC. The day is the number 3. The year is 2013. ## 510(k) Summary of Safety and Effectiveness #### Submitter Name and Address 1. Ophthalmic Instruments Keeler Instruments Inc 459 Parkway Broomall PA 19008 | Contact: | Eugene R Van Arsdale (Marketing Manager) | |----------|------------------------------------------| | Phone: | 1 610 353 4350 | | Fax: | 1 610 353 7814 | | Email: | erv@keelerusa.com | April 2013 (revised December 2013) Date Prepared: #### 2. Device Name (Unmodified) Trade Name: Common/Usual Name: Classification Name: 886.4170 Regulation No: Device Regulatory Class: II HRN Product Code: Review Panel: Ophthalmic 510(k) Number: K062412 & K112093 Cryomatic System and Probes Cryophthalmic Surgical System and Probes Unit, Cryophthalmic, AC-powered #### 3. Proposed Modification . ' The proposed modification described in this Special 510(k) covers the simplification of the coupling mechanism to accept both Keeler Cryomatic disposable and re-useable probes without the use of a special adaptor. Since the launch of the Keeler Cryomatic System , a disposable version of the Retinal Probe has become available which has a different interface connection than that of the Keeler Re-usable Probe range which resulted in Keeler developing an adaptor so that the disposable variant could be connected to the console. The modification has simplified the probe coupling system. It is a safe, quick release coupling that accepts both the Keeler range of modified reuseable probes and Keeler disposable probes (unchanged), without the need for a special adaptor. The intended use of the Keeler Cryomatic System and Probes is unchanged following the introduction of the new coupling mechanism. The control of the freeze and defrost functions is the same as that for the current Keeler range of non-disposable probes. {1}------------------------------------------------ ## Keeler Ophthalmic Instruments ### 4. Device Description Console The Cryomatic MKII console is a self-contained system. The console consists of a rigid PU enclosure, housing the principle subsystems, switch mode power supply, controller PCB and pneumatic control module. On the front of the console is an LCD screen and membrane key panel. The console provides the connection point for the range of probe (reusable and disposable), footswitch, mains electricity, gas supply and scavenging system. ## Crvomatic Probes There is a variety of Keeler Re-usable Cryomatic Probes whose stainless tips are shaped depending on surgical application. The plastic handle is permanently connected to flexible pressure hose and integral connector, which connects to Cryomatic MKII Console. The Keeler Disposable Cryo Probe comprises a stainless steel stem with a metal handle connected to a 2m long bi-lumen high-pressure plastic hose contained within a protective outer tube and terminated with a customdesigned plastic connector for insertion into the Cryomatic MKII console. ## Method of Operation When the footswitch is pressed, high pressure cryogen gas is circulated through the Cryo probe, rapid gas expansion in the probe tip causes freezing according to the Joule-Thompson principle. This gas supply to the probe tip is controlled using solenoid valves interconnected via an arrangement of galleries in a manifold. The system displays user information by means of a graphical LCD on the front panel. All relevant information such as operating state, warnings, condition of gas cylinder and any fault information is displayed in an unambiguous fashion. #### 5. Labeling and Intended Use Instructions for use (IFU) for the Keeler Cryomatic System have been updated to incorporate the use of the new coupling mechanism. A separate reusable probe IFU will no longer be supplied with each probe as is currently the case. Instead a copy of the IFU supplied with the console will be supplied with the probes. Console labels have been updated to identify the MKII model, and packaging labels for the reusable probes have been updated with revised part numbers of the modified versions. The IFU for the disposable probes has also been updated to reference the new Cryomatic System. {2}------------------------------------------------ Image /page/2/Picture/0 description: The image shows the logo for Keeler Ophthalmic Instruments. The word "Keeler" is in a bold, sans-serif font. Below the word "Keeler" is the phrase "Ophthalmic Instruments" in a smaller, sans-serif font. The logo is simple and professional. The intended use of the Keeler Cryomatic System & Probes (including the disposable probe) is the same as originally cleared under the original 510(k) premarket notifications (K062412 &K112093). #### 6. Materials Biocompatibility With respect to materials that come into direct contact intentionally with the eve during surgery, there are no changes. In both types of probe, the exposed stem is made of stainless steel with a smooth welded tip. This tip is formed by electron beam welding utilizing the parent material, which does not require addition of any other materials such as flux or weld filler. #### 7. Sterilization and Shelf Life The Sterilization method (pre-sterilised with ethylene oxide gas) for the single use Disposable Cryo Probes is unchanged. The recommended method for sterilizing re-usable probes is steam sterilization, which remains unchanged. As the design of the re-usable probes has changed, validation of the steam sterilization process was carried out to demonstrate that the sterilization parameters outlined in the instruction for use are sufficient to sterilize the modified probes. #### Comparison of the device with the Predicate 8. The comparison table below summarizes the similarities and differences between both systems, with respect to safety and effectiveness, which are discussed in more detail in the following sections. | Characteristic Features | Modified Device | Cryomatic System and Probes | Notes | |-----------------------------------------|------------------------------------------|------------------------------------------|-----------| | General Arrangement | Desktop console with Optional trolley | Desktop console with Optional trolley | No change | | Cryogen Type | CO2 or N2O | CO2 or N2O | No change | | Single cylinder connection | Yes | Yes | No change | | Freeze system pressure regulation | Automatic | Automatic | No change | | Freeze control | Footswitch | Footswitch | No change | {3}------------------------------------------------ Image /page/3/Picture/0 description: The image shows the word "Keeler" in a bold, sans-serif font. The letters are closely spaced together, creating a compact and easily readable word. The text is black against a white background. Ophthalmic Instruments | Purge Cycle | Manual | Automatic | Purge cycle is not required for the disposable probe, user initiates the purge cycle for reusable probes. The purge cycle is intended to remove any debris left in the reusable probes following the sterilization process. The modification does not affect the safety or effectiveness of the device | |--------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Auto-clean | Yes | Yes | No change | | Audible Indicator | Yes | Yes | No change | | Cryo-probe connection mechanism | Quick release | Quick release Console - 2 male plugs Probes - 2 female plug sockets | The coupling mechanism has been updated to accommodate both disposable and reusable probes. The modification does not affect the safety or effectiveness of the device | | Disposable probe connection | No adaptor required | Connected to the console via disposable probe adaptor | The coupling mechanism has been updated to accommodate both disposable and reusable probes. The modification does not affect the safety or effectiveness of the device | | Instruction for Use (IFU) | The IFU (Part # EP59- 11410) has been updated to include instructions on how to operate the new coupling mechanism, new graphics have been added to the symbols section, the list of probes used with the devices has been updated to reference the modified probe part numbers as well the disposable probes and the Trouble Shooting section has been updated. | IFU supplied with the console (Part # 2509- P-8012) The list of probes used with the Cryomatic Console does not reference the disposable probe | The intend use of the device has not changed The modifications do not affect the safety or effectiveness of the device | | Instruction for Use (IFU) | IFU (part # EP59- 11410) supplied with the console and the probes | IFU supplied with the console (part # 2509- P-8012) IFU supplied with probes (part # KCU402) | The IFU (part # EP59-11410) contains all the information needed to safely operate and console and probes | | Disposable probe IFU (Part # 2508- P-7022) | IFU (Part # EP59- 41003) updated to approve use with modified console. For use only with the Keeler Disposable Probe Adapter (2508- P-8026) and Cryomatic Console (2509-P-1000) or the Cryomatic MKII Console (2509-P- 1010) | For use only with the Keeler Disposable Probe Adapter (2508- P-8026) and Cryomatic Console (2509-P-1000) | Allows use with the modified console | | Freeze Zone | End freeze | End freeze | No change | | Construction | Stainless steel (Electron beam welding) | Stainless steel (Electron beam welding) | No change | | Probe range | Full range of ophthalmic probes | Full range of ophthalmic probes | No change | | Electrical supply | mains | mains | No change | | Control system | Embedded micro- controller (embedded software) | Embedded micro- controller (embedded software) | Software has been updated to incorporated changes to the coupling mechanism The modification does not affect the safety or effectiveness of the device | | Sterilization | Pre-vacuum (porous load) 134 - 137 °C (273-279 °F) 3 minutes Pre-vacuum (porous load) 134 - 137 °C (273-279 °F) 18 minutes | Pre-vacuum (porous load) 134 - 137 °C (273-279 °F) 3 minutes Gravity 121-124°C (250-255°F) 30 minutes | No requirement to have two methods of sterilization. The sterilization methods have been validated The modification does not affect the safety or effectiveness of the device | {4}------------------------------------------------ # Keeler Ophthalmic Instruments {5}------------------------------------------------ Image /page/5/Picture/0 description: The image contains the word "Keeler" in a bold, sans-serif font. The text is black against a white background. The letters are evenly spaced and easily readable. Ophthalmic Instruments #### 9. Performance and Safety Verification tests have been carried out to confirm that the cryogenic performance and safety aspects of the modified console and probes are comparable with the Keeler Cryomatic System and Probes cleared for marketing under 510(k) K062412 and K112093. These verification tests evaluated the following aspects: - a) Probe external temperature and repeatability - b) Iceball growth capability - c) Defrost performance - d) Tractive power The modified Keeler Cryomatic System and probes have been evaluated against the requirements of IEC 60601-1 for electrical safety and to IEC 60601-1-2 for electromagnetic compatibility. In all tests the modified device was in compliance with these FDA recognized standards. {6}------------------------------------------------ Keeler Ophthalmic Instruments #### Substantial Equivalence 10. The modified Keeler Cryomatic System and Probes (Keeler Cryomatic MKII System), is considered to be substantially equivalent to the Cryomatic System and Probes described in the original 510(k) submissions (K062412 &K112093). {7}------------------------------------------------ Image /page/7/Picture/0 description: The image shows a logo for the U.S. Department of Health & Human Services. The logo consists of a stylized symbol resembling an eagle or bird in flight, positioned to the right. To the left of the symbol, the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the symbol. The logo is presented in black and white. ### DEPARTMENT OF HEALTH & HUMAN SERVICES Public Health Service December 23, 2013 Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002 Keeler Instruments, Inc. Mr. Eugene R. Van Arsdale Marketing Manager 456 Parkway Broomall, PA 19008-4295 Re: K131787 Trade/Device Name: Cryomatic MKII Console, Cryomatic MKII Probes, Disposable Cryo Probes Regulation Number: 21 CFR 886.4170 Regulation Name: Cryophthalmic Unit Regulatory Class: Class II Product Code: HRN Dated: November 25, 2013 Received: November 26, 2013 Dear Mr. Van Arsdale: We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading. If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. {8}------------------------------------------------ Page 2 - Mr. Eugene R. Van Arsdale 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 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050. If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Small Manufacturers. International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled. "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance. You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Sincerely yours, # Deborah L. Falls -S for Malvina B. Eydelman, M.D. Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {9}------------------------------------------------ Image /page/9/Picture/0 description: The image shows the word "Keeler" in a bold, sans-serif font. Below the word "Keeler" is the phrase "Ophthalmic Instruments" in a smaller, less bold font. The text appears to be part of a logo or heading, possibly for a company specializing in ophthalmic instruments. ### 2. Indications for Use Statement 510(k) Number (if known): K131787 Device Name: Keeler Cryomatic MKII Cryosurgical System. Indications for Use: The Keeler Cryomatic System and probes are for use in ophthalmic surgery such as cryopexy for retinal detachment, cyclo destructive procedures in refractory glaucoma, extraction of fragments within the vitreous cavity, cataract extraction, cryo destruction of lash follicles for trichiasis and treatment of retinopathy of prematurity (ROP). Prescription Use _ V__________________________________________________________________________________________________________________________________________________________ (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE) ## Charles Chiang -S 2013.12.16 11:46:15 -05'00'