K Number
K213349
Date Cleared
2022-06-23

(258 days)

Product Code
Regulation Number
888.3660
Panel
OR
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The Catalyst R1 Reverse Shoulder System is a reverse total shoulder replacement for patients with a functional deltoid muscle and a grossly deficient rotator cuff joint suffering from pain and dysfunction due to:

  • · Severe arthropathy with a grossly deficient rotator cuff;
  • · Previously failed joint replacement with a grossly deficient rotator cuff;
  • · Fracture of glenohumeral joint from trauma or pathologic conditions of the shoulder including humeral head fracture, displaced 3- or 4-part fractures of proximal humerus, or reconstruction after tumor resection;
  • · Bone defect in proximal humerus;
  • · Non-inflammatory degenerative disease including osteoarthritis and avascular necrosis of the natural humeral head and/or glenoid;
  • · Inflammatory arthritis including rheumatoid arthritis;
  • · Correction of functional deformity

The humeral stems are intended for cemented or uncemented applications.

The glenoid baseplate is intended for uncemented use with the addition of screws for fixation.

Device Description

The Catalyst R1 Reverse Shoulder System is a total shoulder prosthesis designed for use in patients with a non-functional rotator cuff. The articulation of this reverse design is inverted compared to a traditional anatomic total shoulder prosthesis, where the articulating sphere is on the glenoid side of the joint, and the mating insert is fixed into the humeral stem implant.

The Catalyst R1 Reverse Shoulder System was previously cleared per K202611 and modified to add semi-constrained polyethylene inserts per K211991. This submission is to add humeral spacers to the R1 Reverse Shoulder System. The humeral spacers allow for a height extension of the humeral stems cleared in K202611. These humeral spacers are an additional option and are compatible with all components within the Catalyst R1 Reverse Shoulder System.

AI/ML Overview

This looks like a 510(k) summary for a medical device, the Catalyst R1 Reverse Shoulder System, and not a study describing AI/ML performance. Therefore, I cannot provide the requested information about acceptance criteria and studies proving the device meets those criteria, as the information is not present in the provided text.

The document discusses:

  • The device's name and classification.
  • Its indications for use.
  • A comparison to a predicate device for substantial equivalence.
  • Non-clinical performance data (construct fatigue tests) but explicitly states "Clinical testing was not necessary to demonstrate substantial equivalence".

There is no mention of:

  • A table of acceptance criteria and reported device performance related to diagnostic accuracy or AI/ML.
  • Sample sizes for test sets or data provenance.
  • Experts used to establish ground truth or their qualifications.
  • Adjudication methods.
  • Multi-reader multi-case (MRMC) studies or effect sizes of AI assistance.
  • Standalone algorithm performance.
  • Type of ground truth used (e.g., pathology, outcomes data).
  • Training set sample sizes or how ground truth for training was established.

This document seems to be focused on demonstrating substantial equivalence for a physical implantable device based on its design, materials, intended use, and mechanical performance, rather than evaluating a diagnostic or AI-driven system.

§ 888.3660 Shoulder joint metal/polymer semi-constrained cemented prosthesis.

(a)
Identification. A shoulder joint metal/polymer semi-constrained cemented prosthesis is a device intended to be implanted to replace a shoulder joint. 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 prostheses that have a humeral resurfacing component made of alloys, such as cobalt-chromium-molybdenum, and a glenoid resurfacing component made of ultra-high molecular weight polyethylene, and is limited to those prostheses intended for use with bone cement (§ 888.3027).(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)) Application for Orthopedic Devices,” and
(v) “Guidance Document for Testing Non-articulating, ‘Mechanically Locked’ Modular Implant Components,”
(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,” and
(vii) 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 “Specification for Titanium-6 Aluminum-4 Vanadium Alloy Castings for Surgical Implants,”
(vi) F 1147-95 “Test Method for Tension Testing of Porous Metal,”
(vii) F 1378-97 “Standard Specification for Shoulder Prosthesis,” and
(viii) F 1537-94 “Specification for Wrought Cobalt-28 Chromium-6 Molybdenum Alloy for Surgical Implants.”