OptiMap Catheter - 50mm (OPTI-CATH2-50)

K253205 · Cortex, Inc. · MTD · Mar 13, 2026 · Cardiovascular

Device Facts

• Record ID: K253205
• Device Name: OptiMap Catheter - 50mm (OPTI-CATH2-50)
• Applicant: Cortex, Inc.
• Product Code: MTD · Cardiovascular
• Decision Date: Mar 13, 2026
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 870.1220
• Device Class: Class 2

Intended Use

The OptiMap™ Catheter is indicated for use in cardiac electrophysiology procedures to assist in the diagnosis of arrhythmias that may be difficult to identify using conventional mapping systems alone (i.e. linear mapping catheters). The OptiMap™ Catheter may also be used for delivery of externally generated pacing stimuli.

Device Story

Sterile, single-use intracardiac mapping catheter; features expandable basket distal end with 8 longitudinal splines, each containing 8 electrodes. Used in cardiac electrophysiology procedures; operated by clinicians. Device detects electrical potentials from endocardial surfaces; signals transmitted to external 3-D mapping system for analysis. Also delivers externally generated pacing stimuli. Integrated introducer tool collapses basket for insertion via 8.5 F sheath. Provides high-density mapping data to assist diagnosis of complex arrhythmias; enables targeted pacing. Benefits include improved diagnostic capability for arrhythmias challenging to map with standard linear catheters.

Clinical Evidence

Bench testing only. Evidence includes design verification, design validation, formative usability evaluation, pre-clinical animal testing, biocompatibility testing, sterilization validation, packaging validation, and electrical safety testing. All acceptance criteria met.

Technological Characteristics

Basket-style mapping catheter; 8 splines with 8 electrodes each. Materials: unspecified. Energy: electrical (sensing/pacing). Form factor: 50mm basket, compatible with 8.5 F sheath. Connectivity: connects to external 3-D mapping system. Sterilization: validated. Software: none (mechanical/electrical catheter).

Indications for Use

Indicated for patients undergoing cardiac electrophysiology procedures to assist in the diagnosis of arrhythmias difficult to identify with conventional linear mapping catheters; also indicated for delivery of externally generated pacing stimuli.

Regulatory Classification

Identification

An electrode recording catheter or an electrode recording probe is a device used to detect an intracardiac electrocardiogram, or to detect cardiac output or left-to-right heart shunts. The device may be unipolar or multipolar for electrocardiogram detection, or may be a platinum-tipped catheter which senses the presence of a special indicator for cardiac output or left-to-right heart shunt determinations.

Predicate Devices

• OptiMap™ Catheter (K223666)

Submission Summary (Full Text)

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FDA U.S. FOOD & DRUG ADMINISTRATION

March 13, 2026

Cortex, Inc
Sarah Ware
Principal Regulatory Affairs Specialist
2755 Great America Way
Suite 401
Santa Clara, California 95054

Re: K253205
Trade/Device Name: OptiMap Catheter - 50mm (OPTI-CATH2-50)
Regulation Number: 21 CFR 870.1220
Regulation Name: Electrode Recording Catheter Or Electrode Recording Probe
Regulatory Class: Class II
Product Code: MTD
Dated: February 13, 2026
Received: February 13, 2026

Dear Sarah Ware:

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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K253205 - Sarah Ware
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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 Management System Regulation (QMSR) (21 CFR Part 820), which includes, but is not limited to, ISO 13485 clause 7.3 (Design controls), ISO 13485 clause 8.3 (Nonconforming product), and ISO 13485 clause 8.5 (Corrective and preventative action). Please note that regardless of whether a change requires premarket review, the QMSR requires device manufacturers to review and approve changes to device design and production (ISO 13485 clause 7.3 and 21 CFR 820.70) and document changes and approvals in the Medical Device File (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 Management System Regulation (QMSR) (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.

For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-

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K253205 - Sarah Ware
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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,

MARCO CANNELLA -S

for:
- Aneesh Deoras
- Assistant Director
- Division of Cardiac Electrophysiology, Diagnostics, and Monitoring Devices
- Office of Cardiovascular 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. | K253205 | ? |
| Please provide the device trade name(s). | | ? |
| OptiMap Catheter - 50mm (OPTI-CATH2-50) | | |
| Please provide your Indications for Use below. | | ? |
| The OptiMap™ Catheter is indicated for use in cardiac electrophysiology procedures to assist in the diagnosis of arrhythmias that may be difficult to identify using conventional mapping systems alone (i.e. linear mapping catheters). The OptiMap™ Catheter may also be used for delivery of externally generated pacing stimuli. | | |
| 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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cortex

Cortex, Inc.

2755 Great America Way

Suite 401

Santa Clara, CA 95054 USA

510(k) Summary for OptiMap Catheter K253205

1. Submitter

Cortex, Inc.
2755 Great America Way
Suite 401
Santa Clara, CA 95054 USA

Contact:

Sarah Ware
Principal Regulatory Affairs Specialist
Phone: [phone]
E-mail: [e-mail]

Date Prepared: 25 Sept 2025

2. Device

Name of Device(s): OPTIMAP™ Catheter
Common Name: Optimap Catheter
Classification Name: Electrode Recording Catheter or Electrode Recording Probe
Product Code: MTD
Device Class and Panel: Class II, Cardiovascular
Classification Regulation: 21 CFR Part 870.1220

3. Predicate Device

| Subject Device | Predicate Device | Predicate 510(k) |
| --- | --- | --- |
| OptiMap™ Catheter | OptiMap™ Catheter | K223666 |

K253205 - 510(k) Summary for OptiMap Catheter

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cortex

Cortex, Inc.
2755 Great America Way
Suite 401
Santa Clara, CA 95054 USA

## 4. Device Description

The OptiMap™ Catheter is a sterile, single use device used to detect electrical potentials from the endocardial surfaces of the heart. It may also be used to deliver externally generated pacing stimuli. These signals may be used for analysis with a 3-D mapping system.

The catheter’s distal end is an expandable basket with eight (8) longitudinal splines each having eight (8) electrodes spaced equal distance along the length of the spline. When expanded it forms a spherical or basket shape. An integrated Introducer Tool collapses the basket for insertion into a minimum 8.5 F sheath. The OptiMap Catheter is available in one model number representing its basket size.

- OPTI-CATH2-50 is the 50 mm basket size

## 5. Intended Use

Intracardiac electrophysiology mapping and pacing

## 6. Indications for Use

The OptiMap™ Catheter is indicated for use in cardiac electrophysiology procedures to assist in the diagnosis of arrhythmias that may be difficult to identify using conventional mapping systems alone (i.e. linear mapping catheters). The OptiMap™ Catheter may also be used for delivery of externally generated pacing stimuli.

## 7. Comparison of Technological Characteristics with the Predicate Device

There are no significant differences in the fundamental scientific technology between the predicate and subject devices. The OptiMap Catheter features the following similarities with the predicate device:

- Same intended use and indications for use
- Same principles of operation
- Same fundamental scientific technology
- 3D Basket shape mapping catheter with 8 radially spaced splines attached to a shaft and handle
- Electrodes for intracardiac electrophysiology mapping and pacing
- Same catheter working length and electrode spacing
- Same electrical ratings

The differences in technological characteristics involve the following:

- Tip design and assembly
- Basket assembly
- Circuit design and assembly

## 8. Performance Date

Performance testing applicable to the subject device was completed to ensure it performs as intended per the product specifications and requirements, including specifications and requirements related to use with a compatible OptiMap mapping system. The following testing has been completed in

K253205 - 510(k) Summary for OptiMap Catheter

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cortex

Cortex, Inc.
2755 Great America Way
Suite 401
Santa Clara, CA 95054 USA

support of the OptiMap Catheter, and all acceptance criteria were met in accordance with the protocols:

- Design Verification Testing
- Design Validation
- Formative Usability Evaluation
- Pre-clinical Animal Testing
- Biocompatibility Testing
- Sterilization Validation and Adoption
- Packaging Validation
- Electrical Safety Testing

No questions of safety or effectiveness are raised as a result of the testing, and the subject device is considered substantially equivalent to the predicate device based on the performance data collected.

# 9. Conclusion

The subject and predicate devices share the same intended use and have similar underlying technological characteristics (i.e. basket shape mapping catheter intended for intracardiac electrophysiology mapping and pacing). Differences between the subject and predicate devices do not result in differences in overall device performance or fundamental scientific technology, and the subject device is considered substantially equivalent to the predicate device.

K253205 - 510(k) Summary for OptiMap Catheter