K Number
K221048
Device Name
Episealer Patellofemoral System
Date Cleared
2022-12-23

(259 days)

Product Code
Regulation Number
888.3540
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Episealer Patellofemoral System is intended to be used in patients with osteoarthritis limited to the distal patellofemoral joint, patients with a history of patellar dislocation or patellar fracture, and those patients with failed previous surgery (arthroscopy, tibial tubercle elevation, lateral release, etc.) where pain, deformity or dysfunction persists. The device is intended for cemented fixation.
Device Description
The Episealer Patellofemoral System is a patient-individualized arthroplasty device which replaces a damaged patellofemoral joint. The subject device consists of two components: - . Episealer PF - Patellar Component ● The Episealer PF component is implanted centrally in the trochlear area of the distal femur. The Patellar Component is implanted on the backside of the patella and articulates with the Episealer PF.
More Information

No
The summary describes a patient-individualized arthroplasty device and its mechanical testing, with no mention of AI or ML technologies.

Yes
The device is intended to treat osteoarthritis and other conditions causing pain, deformity, or dysfunction in the patellofemoral joint, which aligns with the definition of a therapeutic device.

No

The device is an arthroplasty system intended to replace a damaged joint, not to diagnose a condition.

No

The device description clearly states it consists of two physical components: the Episealer PF and the Patellar Component, which are implanted in the body. This indicates it is a hardware medical device, not software-only.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • IVD Definition: In Vitro Diagnostics are medical devices used to perform tests on samples taken from the human body (like blood, urine, tissue) to provide information about a person's health.
  • Device Description: The Episealer Patellofemoral System is an implantable arthroplasty device designed to replace a damaged joint. It is surgically implanted into the patient's body.
  • Intended Use: The intended use is to treat osteoarthritis and other conditions affecting the patellofemoral joint by replacing the damaged joint surfaces. This is a therapeutic intervention, not a diagnostic test performed on a sample.

The description clearly indicates a surgical implant, which falls under the category of medical devices used for treatment, not diagnosis.

N/A

Intended Use / Indications for Use

The Episealer Patellofemoral System is intended to be used in patients with osteoarthritis limited to the distal patellofemoral joint, patients with a history of patellar fracture, and those patients with failed previous surgery (arthroscopy, tibial tubercle elevation, lateral release, etc.) where pain, deformity or dysfunction persists.

The device is intended for cemented fixation.

Product codes (comma separated list FDA assigned to the subject device)

KRR

Device Description

The Episealer Patellofemoral System is a patient-individualized arthroplasty device which replaces a damaged patellofemoral joint. The subject device consists of two components:

  • . Episealer PF
  • Patellar Component ●

The Episealer PF component is implanted centrally in the trochlear area of the distal femur. The Patellar Component is implanted on the backside of the patella and articulates with the Episealer PF.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

distal patellofemoral joint / trochlear area of the distal femur / patella

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Wear testing of the Episealer Patellofemoral System was performed. In addition, analyses of contact area and cantilever bending strength were conducted.

A cadaver study was conducted to demonstrate that the components of the patient-matched Episealer Patellofemoral System can be accurately placed relative to the pre-planned position, with proper recession and engagement of the Episealer PF and Patellar components.

The testing, engineering analyses, and cadaver study demonstrate the ability of the Episealer Patellofemoral System to perform as intended in the target population.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

Arthrosurface Patello-Femoral Arthroplasty System (K060127)

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Arthrosurface Patello-Femoral Arthroplasty System (K181280, K071413), Restoris Multi Compartmental Knee (MCK) (K172326)

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 888.3540 Knee joint patellofemoral polymer/metal semi-constrained cemented prosthesis.

(a)
Identification. A knee joint patellofemoral polymer/metal semi-constrained cemented prosthesis is a two-part device intended to be implanted to replace part of a knee joint in the treatment of primary patellofemoral arthritis or chondromalacia. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. This generic type of device includes a component made of alloys, such as cobalt-chromium-molybdenum or austenitic steel, for resurfacing the intercondylar groove (femoral sulcus) on the anterior aspect of the distal femur, and a patellar component made of ultra-high molecular weight polyethylene. This generic type of device is limited to those devices intended for use with bone cement (§ 888.3027). The patellar component is designed to be implanted only with its femoral component.(b)
Classification. Class II. The special controls for this device are:(1) FDA's:
(i) “Use of International Standard ISO 10993 ‘Biological Evaluation of Medical Devices—Part I: Evaluation and Testing,’ ”
(ii) “510(k) Sterility Review Guidance of 2/12/90 (K90-1),”
(iii) “Guidance Document for Testing Orthopedic Implants with Modified Metallic Surfaces Apposing Bone or Bone Cement,”
(iv) “Guidance Document for the Preparation of Premarket Notification (510(k)) Applications for Orthopedic Devices,” and
(v) “Guidance Document for Testing Non-articulating, ‘Mechanically Locked’ Modular Implant Components,” and
(2) International Organization for Standardization's (ISO):
(i) ISO 5832-3:1996 “Implants for Surgery—Metallic Materials—Part 3: Wrought Titanium 6-Aluminum 4-Vandium Alloy,”
(ii) ISO 5832-4:1996 “Implants for Surgery—Metallic Materials—Part 4: Cobalt-Chromium-Molybdenum Casting Alloy,”
(iii) ISO 5832-12:1996 “Implants for Surgery—Metallic Materials—Part 12: Wrought Cobalt-Chromium-Molybdenum Alloy,”
(iv) ISO 5833:1992 “Implants for Surgery—Acrylic Resin Cements,”
(v) ISO 5834-2:1998 “Implants for Surgery—Ultra-high Molecular Weight Polyethylene—Part 2: Moulded Forms,”
(vi) ISO 6018:1987 “Orthopaedic Implants—General Requirements for Marking, Packaging, and Labeling,”
(vii) ISO 7207-2:1998 “Implants for Surgery—Components for Partial and Total Knee Joint Prostheses—Part 2: Articulating Surfaces Made of Metal, Ceramic and Plastic Materials,” and
(viii) ISO 9001:1994 “Quality Systems—Model for Quality Assurance in Design/Development, Production, Installation, and Servicing,” and
(3) American Society for Testing and Materials':
(i) F 75-92 “Specification for Cast Cobalt-28 Chromium-6 Molybdenum Alloy for Surgical Implant Material,”
(ii) F 648-98 “Specification for Ultra-High-Molecular-Weight Polyethylene Powder and Fabricated Form for Surgical Implants,”
(iii) F 799-96 “Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Forgings for Surgical Implants,”
(iv) F 1044-95 “Test Method for Shear Testing of Porous Metal Coatings,”
(v) F 1108-97 “Titanium-6 Aluminum-4 Vanadium Alloy Castings for Surgical Implants,”
(vi) F 1147-95 “Test Method for Tension Testing of Porous Metal Coatings,”
(vii) F 1537-94 “Specification for Wrought Cobalt-28 Chromium-6 Molybdenum Alloy for Surgical Implants,” and
(viii) F 1672-95 “Specification for Resurfacing Patellar Prosthesis.”

0

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December 23, 2022

Episurf Medical, Inc. % Hollace Rhodes Vice President, Orthopedic Regulatory Affairs Mcra, LLC 803 7th St NW Washington, District of Columbia 20001

Re: K221048

Trade/Device Name: Episealer® Patellofemoral System Regulation Number: 21 CFR 888.3540 Regulation Name: Knee Joint Patellofemoral Polymer/Metal Semi-Constrained Cemented Prosthesis Regulatory Class: Class II Product Code: KRR Dated: December 1, 2022 Received: December 1, 2022

Dear Hollace Rhodes:

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. 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 located 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.

1

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 of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-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 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 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-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/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-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely.

Ting Song -S

Ting Song, Ph.D. Assistant Director DHT6A: Division of Joint Arthroplasty Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

2

Indications for Use

510(k) Number (if known) K221048

Device Name

Episealer Patellofemoral System

Indications for Use (Describe)

The Episealer Patellofemoral System is intended to be used in patients with osteoarthritis limited to the distal patellofemoral joint, patients with a history of patellar fracture, and those patients with failed previous surgery (arthroscopy, tibial tubercle elevation, lateral release, etc.) where pain, deformity or dysfunction persists.

The device is intended for cemented fixation.

Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)Over-The-Counter Use (21 CFR 801 Subpart C)

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3

510(k) Summary

Device Trade Name:Episealer® Patellofemoral System
Manufacturer:Episurf Operations, AB
Karlavägen 60
SE-114 49 Stockholm
Sweden
Contact:Ms. Hollace Saas Rhodes
Vice President, Orthopedic Regulatory Affairs
MCRA, LLC
803 7th Street, NW, 3rd Floor
Washington, DC 20001
Direct: (202) 552 5807
Mobile: (240) 472 7464
hrhodes@mcra.com
Prepared by:MCRA, LLC
803 7th Street, NW, 3rd Floor
Washington, DC 20001
Office: 202.552.5800
Date Prepared:December 23, 2022
Regulation:21 CFR 888.3540, Knee Joint Patellofemoral Polymer/Metal
Semi-Constrained Cemented Prosthesis
Class:II
Product Code:KRR
Primary Predicate:Arthrosurface Patello-Femoral Arthroplasty System (K060127)
Reference Devices:Arthrosurface Patello-Femoral Arthroplasty System (K181280,
K071413)
Restoris Multi Compartmental Knee (MCK) (K172326)

Indications For Use:

The Episealer Patellofemoral System is intended to be used in patients with osteoarthritis limited to the distal patellofemoral joint, patients with a history of patellar dislocation or patellar fracture, and those patients with failed previous surgery (arthroscopy, tibial tubercle elevation, lateral release, etc.) where pain, deformity or dysfunction persists.

The device is intended for cemented fixation.

4

Device Description:

The Episealer Patellofemoral System is a patient-individualized arthroplasty device which replaces a damaged patellofemoral joint. The subject device consists of two components:

  • . Episealer PF
  • Patellar Component ●

The Episealer PF component is implanted centrally in the trochlear area of the distal femur. The Patellar Component is implanted on the backside of the patella and articulates with the Episealer PF.

Predicate and Reference Devices:

Predicate: Arthrosurface Patello-Femoral Arthroplasty System (K060127)

Reference Devices: Arthrosurface Patello-Femoral Arthroplasty System (K181280, K071413), and Restoris Multi Compartmental Knee (MCK) (K172326)

Performance Testing Summary:

Wear testing of the Episealer Patellofemoral System was performed. In addition, analyses of contact area and cantilever bending strength were conducted.

A cadaver study was conducted to demonstrate that the components of the patient-matched Episealer Patellofemoral System can be accurately placed relative to the pre-planned position, with proper recession and engagement of the Episealer PF and Patellar components.

The testing, engineering analyses, and cadaver study demonstrate the ability of the Episealer Patellofemoral System to perform as intended in the target population.

Substantial Equivalence:

The Episealer Patellofemoral System is equivalent to the predicate device, the Arthrosurface Patello-Femoral Arthroplasty System, with respect to intended use, materials, geometry, range of sizes, and method of fixation. Therefore, the substantial equivalence between these two devices has been established.