K Number
K072427
Date Cleared
2008-06-11

(287 days)

Product Code
Regulation Number
868.5470
Panel
AN
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The SIGMA Elite 34, 36 and 40 Monoplace Hyperbaric Chambers are intended for use for the following clinical medical conditions in accordance with guidelines established by the Undersea and Hyperbaric Medical Society, as follows: Air or Gas Embolism; Carbon Monoxide / Smoke Inhalation; Compromised Skin Grafts and Flaps; Crush Injuries / Acute Traumatic Ischemia; Decompression Sickness; Enhanced Healing in Selected Problem Wounds; Exceptional Blood Loss (Anemia); Gas Gangrene (Clostridia Myonecrosis); Intracranial Abscess; Necrotizing Soft Tissue Infections; Radiation Tissue Damage (Osteoradionecrosis); Refractory Osteomyelitis; Thermal Burns.

Device Description

The SIGMA Elite Series Hyperbaric Chambers and their predicate devices have the same intended use; as a prescription device intended for the whole body administration of oxygen to a patient at pressures not exceeding 3 ATA. The SIGMA Elite Series Hyperbaric Chambers and their predicate devices have very similar general principles of operation. All of these chambers are pressurized and ventilated continuously with pure oxygen, and the patient breathes the chamber atmosphere. Also, in each of the chambers, the pressure-time profile (i.e. the rate and direction of pressure change and the time held at any particular pressure), as well as the oxygen ventilation rate of any treatment, are controlled by the chamber's operator, either directly by means of a pneumatic or an automatic electronic system. The purpose of such controls are to be able to conduct the particular hyperbaric oxygen treatment prescribed by the physician in a way that is safe and comfortable for the patient, and to be able to respond appropriately and effectively to any contingency circumstance.

AI/ML Overview

The provided text is for a 510(k) submission for a hyperbaric chamber, which is a medical device, and does not involve AI or algorithms that would have a "reported device performance" in the typical sense of diagnostic metrics like sensitivity or specificity.

Therefore, the specific information requested in the prompt, such as "reported device performance," "sample size," "ground truth," "MRMC study," and "training set," is not applicable to this type of device submission.

Instead, the acceptance criteria for this device are demonstrated by its compliance with recognized industry standards for design, manufacturing, and safety. The "study" that proves the device meets these criteria is a series of engineering and safety tests to ensure it adheres to these standards.

Here's an analysis of the provided information, framed as closely as possible to your request, but acknowledging the difference in device type:

1. A table of acceptance criteria and the reported device performance

Acceptance Criteria (Standards Compliance)Reported Device Performance (Demonstrated Compliance)
ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, 2003 EditionDevice is designed and manufactured in accordance with this standard. (Implies passing pressure vessel construction requirements)
ASME PVHO-1, Safety Standard for Pressure Vessels for Human Occupancy, 2002 EditionDevice is designed and manufactured in accordance with this standard. (Implies passing safety requirements for human occupancy in pressure vessels)
NFPA 99, Standard for Health Care Facilities, Chapter 19, Hyperbaric Facilities, 2005 EditionDevice is designed and manufactured in accordance with this standard. (Implies compliance with fire and life safety requirements for hyperbaric facilities)
CAN/CSA C22.2 60601-1-1-02 Safety Requirements for Medical Electrical Systems, 2002 EditionDevice is designed and manufactured in accordance with this standard. (Implies meeting safety requirements for medical electrical systems)
EN60601-1-2:2002 EMC Standard for Medical Devices, 2002 EditionDevice is designed and manufactured in accordance with this standard. (Implies compliance with electromagnetic compatibility requirements for medical devices)
Intended UseThe SIGMA Elite Series Hyperbaric Chambers and their predicate devices have the same intended use: as a prescription device intended for the whole body administration of oxygen to a patient at pressures not exceeding 3 ATA. Testing indicated that the devices meet the referenced standards. The device is substantially equivalent to legally marketed predicate devices for the conduct of hyperbaric oxygen therapy. (Implies functional performance for safe delivery of hyperbaric oxygen therapy at specified pressure, with controlled pressure-time profile and oxygen ventilation rate.)

2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)

This information is not applicable and therefore not provided in the document. As a physical medical device (hyperbaric chamber), the "test set" would refer to the chambers themselves undergoing engineering and safety testing, not a dataset of patient information or images. The "provenance" would be the manufacturing location and standard compliance testing, not data collection.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)

This is not applicable to the submission for a hyperbaric chamber. The "ground truth" for this device is compliance with engineering and safety standards, validated through testing by qualified engineers and technicians, not by medical experts interpreting results from the device.

4. Adjudication method (e.g. 2+1, 3+1, none) for the test set

This is not applicable. Adjudication methods like 2+1 or 3+1 are used in clinical studies or expert review for diagnostic performance. For a hyperbaric chamber, it's about meeting quantifiable engineering and safety standards through documented testing, not subjective assessment.

5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

There was no MRMC comparative effectiveness study done. This type of study is relevant for AI or diagnostic devices where human interpretation is involved. This submission is for a physical medical device (hyperbaric chamber) and does not involve AI or human readers in the context of diagnostic interpretation.

6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done

This is not applicable. The device is a hyperbaric chamber, not an algorithm.

7. The type of ground truth used (expert concensus, pathology, outcomes data, etc)

The "ground truth" for this device's safety and effectiveness relies on adherence to established engineering, safety, and medical device standards (ASME, NFPA, CAN/CSA, EN standards). These standards themselves represent a form of "ground truth" in terms of what constitutes a safe and functional hyperbaric chamber, based on collective expert consensus in engineering and healthcare safety fields.

8. The sample size for the training set

This is not applicable. There is no "training set" for a hyperbaric chamber in the context of an algorithm or AI.

9. How the ground truth for the training set was established

This is not applicable, as there is no "training set" for this type of device.

§ 868.5470 Hyperbaric chamber.

(a)
Identification. A hyperbaric chamber is a device that is intended to increase the environmental oxygen pressure to promote the movement of oxygen from the environment to a patient's tissue by means of pressurization that is greater than atmospheric pressure. This device does not include topical oxygen chambers for extremities (§ 878.5650).(b)
Classification. Class II (performance standards).