← Product Code [BZR](/submissions/AN/subpart-f%E2%80%94therapeutic-devices/BZR) · K974372 # AIR OXYGE MIXER (K974372) _Sk Med · BZR · Feb 5, 1998 · Anesthesiology · SESE_ **Canonical URL:** https://fda.innolitics.com/submissions/AN/subpart-f%E2%80%94therapeutic-devices/BZR/K974372 ## Device Facts - **Applicant:** Sk Med - **Product Code:** [BZR](/submissions/AN/subpart-f%E2%80%94therapeutic-devices/BZR.md) - **Decision Date:** Feb 5, 1998 - **Decision:** SESE - **Submission Type:** Traditional - **Regulation:** 21 CFR 868.5330 - **Device Class:** Class 2 - **Review Panel:** Anesthesiology - **Attributes:** Therapeutic, Pediatric ## Indications for Use The Air Oxygen Machine has the same intended use as the predicate device i.e. the Bird Air Oxygen Microblender. It is used to provide respiratory care in conjunction with: - Oxygen Hoods - Resuscitation Bags - Masks - Nasal Cannulas ## Device Story Pneumatically controlled low-flow air/oxygen mixing device; max flow 30 lpm. Uses two pneumatic pressure regulators and mechanical mix valve to control oxygen concentration. Integrated alarm system uses two pressure switches to monitor air and oxygen supplies; triggers audio-visual alarms if supply pressure drops below threshold. Dedicated LED indicators for low air/oxygen; 9V battery-powered with low-voltage indicator. Used in hospital settings for respiratory care; provides controlled oxygen mixtures to patients via hoods, bags, masks, or cannulas. Clinicians use device to manage oxygen delivery; alarms alert staff to supply failures, improving patient safety compared to systems lacking specific supply identification. ## Clinical Evidence Bench testing only. Extensive laboratory testing performed to verify safety, performance, and environmental characteristics, including high/low temperature, humidity, and shock/vibration resistance. ## Technological Characteristics Pneumatic control; 2 pressure regulators; mechanical mix valve. Max flow 30 lpm. Audio-visual alarm system with pressure switches; 9V battery-powered LED indicators for low air, low oxygen, and low battery. No software or digital connectivity. ## Regulatory Identification A breathing gas mixer is a device intended for use in conjunction with a respiratory support apparatus to control the mixing of gases that are to be breathed by a patient. ## Predicate Devices - Bird Low Flow Air/Oxygen Microblender ## Submission Summary (Full Text) > This content was OCRed from public FDA records by [Innolitics](https://innolitics.com). If you use, quote, summarize, crawl, or train on this content, cite Innolitics at https://innolitics.com. > > Innolitics is a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices, including [a 510(k)](https://innolitics.com/services/510ks/), [a De Novo](https://innolitics.com/services/regulatory/), [a SaMD](https://innolitics.com/services/end-to-end-samd/), [an AI/ML medical device](https://innolitics.com/services/medical-imaging-ai-development/), or [an FDA regulatory strategy](https://innolitics.com/services/regulatory/). {0} SUMMARY OF SAFETY AND EFFECTIVENESS K974372 1. Name: SK MED Address: 16000 Sherman Way #224 Van Nuys CA 91406 Phone: (818) 785-8349 FAX: (818) 785-8349 Contact: Dipak Ghosh Date: June 28, 1997 FEB - 5 1998 2. Device Name: Air Oxygen Mixer 3. Predicate Device: The Bird Low Flow Air/Oxygen Microblender is a predicate device that has been on the market since the early 1970's. 4. Description of the Device: The Air Oxygen Mixer is a pneumatically controlled low flow (up to 30 lpm maximum flow) air oxygen mixing device. 5. Intended Use: The Air Oxygen Machine has the same intended use as the predicate device i.e. the Bird Air Oxygen Microblender. It is used to provide respiratory care in conjunction with: - Oxygen Hoods - Resuscitation Bags - Masks - Nasal Cannulas Submitted in accordance with Federal Register Vol. 57, No. 82, April 28, 1992 {1} SUMMARY OF SAFETY AND EFFECTIVENESS ## 6. Technology Characteristics: Mixer: The Air Oxygen Mixer, like the Bird Low Flow Microblender, uses 2 pneumatic pressure regulators and a mechanical mix valve to control oxygen concentration in the delivered gas mixture. Alarms: The Air Oxygen Mixer uses two pressure switches to monitor air and oxygen supplies. If either air or oxygen or both gas supplies fall below a specified threshold, appropriate audio-visual alarms are activated. There is a dedicated LED indicator for low air and low oxygen supply pressure resp. The LEDs are powered by a 9 Volt battery. The battery itself is monitored by a low voltage indicator LED. The Bird Low Flow Microblender activates an audio alarm if the air and oxygen supply pressures differ by more than 20 PSIG. There is no indication of which gas supply is low. Moreover, if both supplies are low, there is no alarm at all. ## Testing: In order to verify Safety, Effectiveness (performance), and Environmental Characteristics (including Hi/Lo Temperature, Humidity, Shock/Vibration), the Air Oxygen Mixer was subjected to extensive bench & environmental laboratory testing. The results of the testing have demonstrated that the Air Oxygen Mixer is as safe and effective as the Bird Low Flow Microblender. Submitted in accordance with Federal Register Vol. 57, No. 82, April 28, 1992 {2} DEPARTMENT OF HEALTH & HUMAN SERVICES Public Health Service. Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850 FEB - 5 1998 Mr. Dipak Ghosh SK Med 16000 Sherman Way #224 Van Nuys, CA 91460 Re: K974372 Air Oxygen Mixer Regulatory Class: II (two) Product Code: 73 BZR Dated: November 19, 1997 Received: November 20, 1997 Dear Mr. Ghosh: We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). 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. If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the Current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic QS inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations. {3} This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market. If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for *in vitro* diagnostic devices), please contact the Office of Compliance at (301) 594-4648. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html". Sincerely yours, ![img-0.jpeg](img-0.jpeg) Thomas J. Callahan, Ph.D. Director Division of Cardiovascular, Respiratory, and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {4} Page 1 of 1 510(k) NUMBER (IF KNOWN): K974372 DEVICE NAME: AIR OXYGEN MIXER FEB. 2, 1998 INDICATIONS FOR USE: The SK Med Air Oxygen Mixer is intended for use with the infant and pediatric population in a hospital environment. Its indications for use are exactly the same as the predicate device i.e. the Bird Low Flow Air Oxygen Microblender. It is used to provide oxygen therapy in conjunction with: - Oxygen Hoods - Resuscitation Bags - Masks - Nasal Cannulas (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED.) Concurrent of CDRH, Office of Device Evaluation (ODE) Prescription Use ☑ (Per 21 CFR 801.109) OR Over-The-Counter-Use (Optional Format 1-2-96) M. Pugli (Division Sign-Off) Division of Cardiovascular, Respiratory, and Neurological Devices 510(k) Number K974372 --- **Source:** [https://fda.innolitics.com/submissions/AN/subpart-f%E2%80%94therapeutic-devices/BZR/K974372](https://fda.innolitics.com/submissions/AN/subpart-f%E2%80%94therapeutic-devices/BZR/K974372) **Published by [Innolitics](https://innolitics.com)** — a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices. If you're preparing [a 510(k)](https://innolitics.com/services/510ks/), [a De Novo](https://innolitics.com/services/regulatory/), [a SaMD](https://innolitics.com/services/end-to-end-samd/), [an AI/ML medical device](https://innolitics.com/services/medical-imaging-ai-development/), or [an FDA regulatory strategy](https://innolitics.com/services/regulatory/), [get in touch](https://innolitics.com/contact). **Cite:** Innolitics at https://innolitics.com