K Number
K111640
Device Name
PRECISION FLOW(R) - HELIOX
Manufacturer
Date Cleared
2011-10-07

(116 days)

Product Code
Regulation Number
868.5450
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Precision Flow® - Heliox is intended to warm and add moisture to breathing gases from an external source for administration to neonate/infant, pediatric and adult patients in the hospital and sub-acute institutions. It adds heat and moisture to a blended medical heliox (79% helium. 21% oxygen)/oxygen mixture and assures the integrity of the precise heliox (79% helium, 21% oxygen)/oxygen mixture via an integral oxygen analyzer. The flow rates may be from 1 to 40 liters per minute via nasal cannula.
Device Description
The Precision Flow® - Heliox consists of two parts: The main unit which contains all the electrical and electronic components including the electronic blender and flow controllers. All the sensors are located in the main unit. The main unit has no water pathways and the gas pathway contains only dry gas at room temperature, and consequently does not need internal cleaning or disinfection. The disposable components comprising the disposable water module, vapor transfer cartridge and heated delivery tube. Conditions in the circulating water and gas streams are sensed remotely via the interface between the main unit and the disposable module.
More Information

Not Found

No
The summary describes a device for warming and humidifying breathing gases with electronic controls and sensors, but there is no mention of AI or ML in the intended use, device description, or performance studies.

Yes
The device is intended to warm and add moisture to breathing gases for administration to patients, which is a therapeutic function.

No

This device is intended to warm and add moisture to breathing gases and assure the integrity of the gas mixture via an integral oxygen analyzer. It is a therapy delivery device, not a diagnostic one.

No

The device description clearly outlines both a "main unit" containing electrical and electronic components (hardware) and "disposable components" (hardware). The software is part of the main unit, but the device is not solely software.

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

Here's why:

  • Intended Use: The intended use clearly states that the device is for warming and adding moisture to breathing gases for administration to patients. This is a direct therapeutic intervention, not a test performed on biological samples outside the body.
  • Device Description: The description details a system for preparing and delivering breathing gases, including components for blending, flow control, heating, and humidification. This aligns with a respiratory support device, not an IVD.
  • Lack of IVD Characteristics: There is no mention of analyzing biological samples (blood, urine, tissue, etc.), detecting analytes, or providing diagnostic information based on laboratory testing.

In summary, the Precision Flow® - Heliox is a medical device used for respiratory support, not an IVD.

N/A

Intended Use / Indications for Use

The Precision Flow® - Heliox is intended to warm and add moisture to breathing gases from an external source for administration to neonate/infant, pediatric and adult patients in the hospital and sub-acute institutions. It adds heat and moisture to a blended medical heliox (79% helium. 21% oxygen)/oxygen mixture and assures the integrity of the precise heliox (79% helium, 21% oxygen)/oxygen mixture via an integral oxygen analyzer. The flow rates may be from 1 to 40 liters per minute via nasal cannula.

Product codes

BTT

Device Description

The Precision Flow® - Heliox consists of two parts:
The main unit which contains all the electrical and electronic components including the electronic blender and flow controllers. All the sensors are located in the main unit. The main unit has no water pathways and the gas pathway contains only dry gas at room temperature, and consequently does not need internal cleaning or disinfection.
The disposable components comprising the disposable water module, vapor transfer cartridge and heated delivery tube. Conditions in the circulating water and gas streams are sensed remotely via the interface between the main unit and the disposable module.

  1. Main unit:

    • The flow of heliox and oxygen is measured by mass flow sensors. The mass flow sensors are configured for the specific gravity of the type of breathing gas. The blending function is independent from the type of gas. The operating software calculates the required flow of each needed to reach the target flow and oxygen percentage set by the operator. The system controls gas flows accordingly by adjusting proportional solenoid valves on the gas lines. An oxygen sensor monitors the gas mixture and signals any discrepancy between target and measured percentage. The oxygen sensor is automatically calibrated with oxygen at power-up and every 24 hours.
    • Firmware running in the main unit uses sensors to monitor gas pressure, water level and water temperature, and to detect air leaks into the water circuit (bubble detector). Alarms are displayed if any parameters are outside the normal range. Other indicators show low charge in the backup battery, and the type of cartridge installed. An internal battery backup will maintain the set flow and oxygen blend for at least 15 minutes without AC power.
  2. Disposable components:

    • Vapor Transfer Cartridge. In the cartridge blended gas passes through membrane made of a specially developed polymer. Warm water circulates and diffuses as vapor through the membrane material into the gas stream. Unlike most humidifiers, there is no direct contact between the water and gas streams. The gas stream leaves the cartridge essentially saturated with vapor at the set temperature.
    • Triple-lumen heated delivery tube. The warmed humidified gas passes through the center lumen. The center lumen is surrounded by two outer lumens carrying warmed water to maintain the temperature of the inner lumen and to minimize rain-out. A proprietary short nasal cannula is connected to the end of the delivery tube and passes the humidified breathing gas to the patient's nose.
    • Disposable module. The module houses a water reservoir, pump, connections for the cartridge and delivery tube, and sensor interfaces to the main unit. Water is pumped past a heater plate through the outer lumens of the delivery tube. Returning water passes through the outer jacket of the Vapor Transfer Cartridge where some water is lost as vapor to the gas stream. There is no direct contact between water and gas flows. The water then returns to the pump reservoir. Heater power is adjusted continuously to maintain the set temperature. Water flows into the circuit from the water bag to replace evaporative losses in the Vapor Transfer Cartridge. Air is purged to atmosphere from the circulation via a hydrophobic filter membrane.

The device front panel has a LCD display which performs the following functions:

  • Displays
    • Gas flow
    • Delivered oxygen concentration
    • Temperature of gas delivered
  • Alarms for
    • Water level for humidifier
    • General fault
    • Blocked tube (water for humidifier)
    • Battery charging status
    • Cartridge fault (humidifier cartridge)
    • Cartridge type (2 are available for lower flows and higher flow)
    • Supply gas fault
  • Encoder knob
    • For selecting settings
  • Run / Standby button
  • Status LED
  • Alarm mute

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Not Found

Indicated Patient Age Range

neonate/infant, pediatric and adult patients

Intended User / Care Setting

hospital and sub-acute institutions

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)

Performance Data:
In all instances, the Precision Flow® - Heliox functioned as intended and the results observed were as expected.
The Precision Flow® - Heliox met the following standards with exceptions:
ISO 62304 Medical Device Software - Software Life Cycle Process
ISO 8185:2007 Respiratory tract humidifiers for medical use
ISO 10993-5:2009 Biological evaluation of medical devices - Part 5: Tests for in vitro cytotoxicity
ISO 10993-10:2010 Tests for Irritation and Sensitization
ISO 11195:1995 Gas mixers for medical use - Stand-alone gas mixers
ISO 14971:2007 Medical devices - Application of risk management to medical devices
ANSI/AAMI/ISO 15223-1:2007/A1:2008 Medical Devices - Symbols to be used with Medical Device Labels, Labeling and information to be supplied - Part 1: General Requirements
ANSI/AAMI ES60601-1:2005 Medical electrical equipment – Part 1: General requirements for basic safety and essential performance
ANSI/AAMI/IEC 60601-1-2:2007 3rd edition Medical Electrical Equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral standard: Electromagnetic Compatibility - Requirements and tests General Requirements for Safety with exceptions: Section 5: Device can not produce hazardous radiation Section 6: Anesthetic mixtures not applicable
EN60601-1-4:1999 Medical Electrical Equipment: Part 1: General Requirements for Safety 4. Collateral Standard: Programmable Electrical Medical Systems
IEC 60601-1-8 2006-10 General requirements, tests and guidance for alarm systems in medical electrical equipment and medical electrical systems
IEC 60529 IPX1 Drip Proof
AAMI TIR 32:2004 Software Risk Management
AAMI TIR 36:2007 Validation of Software
ISTA -1A:2001 Procedure 1A: Packaged-Products weighing 150 LB (68 KG) or Less
EPA/625/R-96/010b (VOC) Method TO-15 (1999) Compendium Method TO-15 Determination of Volatile Organic Compounds (VOCs) in Air collected in specially-Prepared canisters and analyzed by chromatography/mass spectrometry (GC/MS)
NIOSH Method 0500 (1994) NIOSH manual of Analytical methods (NMNM) fourth edition August 1994 (Particulate Matter Testing)

Design Verification Plan:
Listing of all Required Tests

  • Functional Performance Test
  • Alarms & Fault Conditions Test
  • Patient Connector Attachment Test
  • Water Connector Attachment Test
  • Extended Life Test
  • Membrane Switch and Adjustment Dial Test
  • Software Verification Test
  • Fluid & Gas Pathways Leak Test
  • Cartridge Insertion Test
  • Door Test
  • IPX Test
  • Environmental Temperature/Humidity Extremes Test

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

Not Found

Predicate Device(s)

K090781, K072845

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 868.5450 Respiratory gas humidifier.

(a)
Identification. A respiratory gas humidifier is a device that is intended to add moisture to, and sometimes to warm, the breathing gases for administration to a patient. Cascade, gas, heated, and prefilled humidifiers are included in this generic type of device.(b)
Classification. Class II (performance standards).

0

K111640

510(k) SUMMARY

Vapotherm, Inc.'s Precision Flow® - Heliox

OCT - 7 2011

Submitter's Name, Address, Telephone Number, Contact Person and Date Prepared

Vapotherm, Inc. 198 Log Canoe Circle Stevensville, Maryland 21666

410-604-0808 Ext. 209 Phone: Facsimile: 410-604-3978

Contact Person: Gregory A. Whitney

Date Prepared: September 26, 2011

Name of Device and Name/Address of Sponsor

Precision Flow® - Heliox

Vapotherm, Inc. 198 Log Canoe Circle Stevensville, Maryland 21666

Common or Usual Name

Humidifier, Respiratory Gas (Direct Patient Interface) ... .

Classification Name

Humidifier, Respiratory Gas (Direct Patient Interface)

Predicate Device

Primary Device: Precision Medical, Inc. Heliox/Oxygen Blender, K090781 Secondary Device: Precision Flow® - Air, K072845

The Precision Medical device is a mechanical device and the Precision Flow® device is electronic/mechanical device. The Precision Medical predicate device is compared to the Precision Flow® device for mechanical aspects and the Precision Flow® - Heliox is compared to the Precision Flow® - Air for electronic functions. The Precision Medical

1

device depends on adding external stand alone devices (i.e. flowmeter, oxygen analyzer) to it for some functions. The Precision Flow® - Heliox has the same functions residing in the unit.

Intended Use / Indications for Use

The Precision Flow® - Heliox is intended to warm and add moisture to breathing gases from an external source for administration to neonate/infant, pediatric and adult patients in the hospital and sub-acute institutions. It adds heat and moisture to a blended medical heliox (79% helium. 21% oxygen)/oxygen mixture and assures the integrity of the precise heliox (79% helium, 21% oxygen)/oxygen mixture via an integral oxygen analyzer. The flow rates may be from 1 to 40 liters per minute via nasal cannula.

Technological Characteristics

The Precision Flow® - Heliox consists of two parts:

and the more of the comments of the first and with a

The main unit which contains all the electrical and electronic components including the electronic blender and flow controllers. All the sensors are located in the main unit. The main unit has no water pathways and the gas pathway contains only dry gas at room temperature, and consequently does not need internal cleaning or disinfection.

The disposable components comprising the disposable water module, vapor transfer cartridge and heated delivery tube. Conditions in the circulating water and gas streams are sensed remotely via the interface between the main unit and the disposable module.

1. Main unit:

  • · The flow of heliox and oxygen is measured by mass flow sensors. The mass flow sensors are configured for the specific gravity of the type of breathing gas. The blending function is independent from the type of gas. The operating software calculates the required flow of each needed to reach the target flow and oxygen percentage set by the operator. The system controls gas flows accordingly by adjusting proportional solenoid valves on the gas lines. An oxygen sensor monitors the gas mixture and signals any discrepancy between target and measured percentage. The oxygen sensor is automatically calibrated with oxygen at power-up and every 24 hours.
  • · Firmware running in the main unit uses sensors to monitor gas pressure, water level and water temperature, and to detect air leaks into the water circuit (bubble detector). Alarms are displayed if any parameters are

2

outside the normal range. Other indicators show low charge in the backup battery, and the type of cartridge installed. An internal battery backup will maintain the set flow and oxygen blend for at least 15 minutes without AC power.

2. Disposable components:

  • · Vapor Transfer Cartridge. In the cartridge blended gas passes through membrane made of a specially developed polymer. Warm water circulates and diffuses as vapor through the membrane material into the gas stream. Unlike most humidifiers, there is no direct contact between the water and gas streams. The gas stream leaves the cartridge essentially saturated with vapor at the set temperature.
  • · Triple-lumen heated delivery tube. The warmed humidified gas passes through the center lumen. The center lumen is surrounded by two outer lumens carrying warmed water to maintain the temperature of the inner lumen and to minimize rain-out. A proprietary short nasal cannula is connected to the end of the delivery tube and passes the humidified breathing gas to the patient's nose.
  • · Disposable module. The module houses a water reservoir, pump, connections for the cartridge and delivery tube, and sensor interfaces to the main unit. Water is pumped past a heater plate through the outer lumens of the delivery tube. Returning water passes through the outer jacket of the Vapor Transfer Cartridge where some water is lost as vapor to the gas stream. There is no direct contact between water and gas flows. The water then returns to the pump reservoir. Heater power is adjusted continuously to maintain the set temperature. Water flows into the circuit from the water bag to replace evaporative losses in the Vapor Transfer Cartridge. Air is purged to atmosphere from the circulation via a hydrophobic filter membrane.

The device front panel has a LCD display which performs the following functions:

  • Displays .
    • o Gas flow
    • o Delivered oxygen concentration
    • Temperature of gas delivered 0
  • Alarms for ◆
    • o Water level for humidifier
    • General fault o
    • o Blocked tube (water for humidifier)
    • Battery charging status o
    • Cartridge fault (humidifier cartridge) o

3

  • o Cartridge type (2 are available for lower flows and higher flow)
  • o Supply gas fault
  • Encoder knob .
    • o For selecting settings
  • Run / Standby button .
  • Status LED .
  • Alarm mute .

Performance Data:

In all instances, the Precision Flow® - Heliox functioned as intended and the results observed were as expected.

The Precision Flow® - Heliox met the following standards with exceptions:

#Document NumberTitle
1ISO 62304Medical Device Software - Software Life Cycle Process
2ISO 8185:2007Respiratory tract humidifiers for medical use
3ISO 10993-5:2009Biological evaluation of medical devices - Part 5: Tests
for in vitro cytotoxicity
4ISO 10993-10:2010Tests for Irritation and Sensitization
5ISO 11195:1995Gas mixers for medical use - Stand-alone gas mixers
6ISO 14971:2007Medical devices - Application of risk management to
medical devices
7ANSI/AAMI/ISO 15223-
1:2007/A1:2008Medical Devices - Symbols to be used with Medical
Device Labels, Labeling and information to be supplied
  • Part 1: General Requirements |
    | 8 | ANSI/AAMI ES60601-1:2005 | Medical electrical equipment – Part 1: General
    requirements for basic safety and essential
    performance |
    | 9 | ANSI/AAMI/IEC 60601-1-
    2:2007 3rd edition | Medical Electrical Equipment - Part 1-2: General
    requirements for basic safety and essential
    performance - Collateral standard: Electromagnetic
    Compatibility - Requirements and tests
    General Requirements for Safety with exceptions:
    Section 5:
    Device can not produce hazardous
    radiation
    Section 6:
    Anesthetic mixtures not applicable |
    | 9 | ANSI/AAMI/IEC 60601-1-
    2:2007 3rd edition | Medical Electrical Equipment - Part 1-2: General
    requirements for basic safety and essential
    performance - Collateral standard: Electromagnetic
    Compatibility - Requirements and tests
    General Requirements for Safety with exceptions:
    Section 5:
    Device can not produce hazardous
    radiation
    Section 6:
    Anesthetic mixtures not applicable |

4

#Document NumberTitle
10EN60601-1-4:1999Medical Electrical Equipment: Part 1: General
Requirements for Safety 4. Collateral Standard:
Programmable Electrical Medical Systems
11IEC 60601-1-8 2006-10General requirements, tests and guidance for alarm
systems in medical electrical equipment and medical
electrical systems
12IEC 60529 IPX1Drip Proof
13AAMI TIR 32:2004Software Risk Management
14AAMI TIR 36:2007Validation of Software
15ISTA -1A:2001Procedure 1A: Packaged-Products weighing 150 LB
(68 KG) or Less
16EPA/625/R-96/010b (VOC)
Method TO-15
(1999)Compendium Method TO-15 Determination of Volatile
Organic Compounds (VOCs) in Air collected in
specially-Prepared canisters and analyzed by
chromatography/mass spectrometry (GC/MS)
17NIOSH Method 0500
(1994)NIOSH manual of Analytical methods (NMNM) fourth
edition August 1994 (Particulate Matter Testing)

Design Verification Plan:

Listing of all Required Tests

  • Functional Performance Test .
  • Alarms & Fault Conditions Test ●
  • Patient Connector Attachment Test .
  • Water Connector Attachment Test .
  • Extended Life Test .
  • Membrane Switch and Adjustment Dial Test .
  • Software Verification Test ●
  • Fluid & Gas Pathways Leak Test .
  • ... .. .. . . . . . . . Cartridge Insertion Test . . . . . . . Comments of the country of the status
    • . Door Test
    • IPX Test .
    • Environmental Temperature/Humidity Extremes Test .

Substantial Equivalence

The Precision Flow® - Heliox is as safe and effective as the predicate and the Precision Medical Heliox/Oxygen Blender (K090781).

A comparison of the devices is as follows:

5

| # | Manufacturer | Precision Medical, Inc.
Heliox/Oxygen Blender;
K090781 | Vapotherm, Inc. Precision
Flow® - Oxygen/Heliox,
K111640 | Comments |
|----|--------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------|
| 1 | Indications for
Use | The Precision Medical, Inc. Heliox
Blender Oxygen System is
intended to deliver blended
Helium and oxygen in a hospital
setting. Oxygen concentrations
can be dialed from 20% to 100%
for heliox tank mixtures of 20%
oxygen/ 80% helium, and 30% to
100% for heliox tank mixtures of
30% oxygen/ 70% helium. The
Blender is not intended as a life
supporting device. | The Precision Flow® - Heliox
is intended to warm and add
moisture to breathing gases
from an external source for
administration to
neonate/infant, pediatric and
adult patients in the hospital
and sub-acute institutions. It
adds heat and moisture to a
blended medical heliox (79%
helium, 21% oxygen)/oxygen
mixture and assures the
integrity of the precise heliox
(79% helium, 21%
oxygen)/oxygen mixture via
an integral oxygen analyzer.
The flow rates may be from 1
to 40 liters per minute via
nasal cannula. | Equivalent |
| 2 | Patient
population | Infant, pediatric, and adult
patients. | Neonate/infant, pediatric and
adult patients | Equivalent |
| 3 | Technology | Mechanical | Electronic/Mechanical | Equivalent |
| 4 | Gases Mixed | Heliox & Oxygen | Heliox & Oxygen | Equivalent |
| 5 | Heliox/Oxygen
Mixtures | 79% Heliox, 21% Oxygen | 79% Heliox, 21% Oxygen | Equivalent |
| 6 | Oxygen %
Range | 21 to 100% | 21 to 100% | Equivalent |
| 7 | Oxygen
Concentration
Monitor | Requires an external oxygen
analyzer with alarm. Accuracy
requires a gas bleed operation at
flow settings below 15 lpm for
High Flow and 3 lpm for Low Flow | Internal oxygen analyzer
independent of blender
function | Equivalent
PF-H
eliminates
user error at
set up |
| 8 | Oxygen
Concentration
Range | 21 to 100% | 21 to 100% | Equivalent |
| 9 | Correct Heliox
Flow Rates | Manual Oxygen Flowmeter
Conversion Chart Needed | Automatically | Equivalent
PF-H has
less
opportunity
for error |
| 10 | Supply
Pressure
Range | 30 to 75 psi Heliox + Oxygen
must be within 10 psi of each
other | 4 to 70 psi, Device unaffected
by input gas pressure
differences, Heliox medical
grade & certified gas cylinder | Equivalent |
| # | Manufacturer | Precision Medical, Inc.
Heliox/Oxygen Blender,
K090781 | Vapotherm, Inc. Precision
Flow® - Oxygen/Heliox,
K111640 | Comments |
| 11 | Operating
Temperature | 15° to 40°C | 33° to 43° C | Equivalent |
| 12 | Environment of
use | Institutional environments | Hospital and sub-acute
institutions | Equivalent |
| 13 | Condition Gas:
Warm &
Humidify | Need to add auxiliary equipment | Integrated into device | Equivalent
PF-H
eliminates
user error in
assembly |
| 14 | FiO2 Accuracy | +/- 3% of full scale @ 50 psi | 2 to 40 lpm: +/-2%
1 to 2 lpm: +/-5% | Equivalent |
| 15 | Alarms | Alarms for Gas Bypass &
Oxygen/Heliox Supply Gas
Connected | Alarms for General Fault
(internal component failure),
Blocked Delivery Tube, Water
Out, Disposable Water Path
function, Battery Charging
(AC disconnected), Vapor
Transfer Cartridge type &
fault, Gas Supply, Gas
Temperature | Equivalent
PF-H
provides
alarms for
multiple
alarm
conditions |
| 16 | Alarm Sound
Level | >/= to 80 db at 1 ft. | Medium Priority 47 db @ 1 m
Low Priority 45 db @ 1 m | Equivalent |
| 17 | Primary Outlet
Flow Range | High Flow 15 to 120 lpm
Low Flow 3 to 30 lpm
(With both supply pressures at 50
psi with Bleed Closed*) | 1 to 40 lpm | Equivalent |
| 18 | Auxiliary Outlet
Flow Range | High Flow 2 to 100 Ipm
Low Flow 3 to 30 Ipm
(With both supply pressures at 50
psi with Bleed Open) | Auxiliary outlet not needed | Equivalent |
| 19 | Inlet Fitting | DISS or NIST | DISS or NIST | Equivalent |
| 20 | Bleed Flow
@50 psi | 3 Ipm or less | Not required for PF-H
functionality | Equivalent
PH-H easier
to use, no
bleed off
required to
operate |
| 21 | No. of Primary
Outlet Ports | 1 | 1 | Equivalent |
| 22 | No. of Auxiliary
Outlet Ports | 1 | 0 | PF-H for
single patient
use |
| # | Item | Vapotherm, Inc. Precision
Flow® - Oxygen/Air, K072845 | Vapotherm, Inc. Precision
Flow® - Oxygen/Heliox,
K111640 | Comments |
| 1 | Indications for
Use | Precision Flow® is intended for
use to add warm moisture to
breathing gases from an external
source for administration to a
neonate/infant, pediatric and
adult patients in the hospital,
sub-acute institutions, and home
settings. It adds heat and
moisture to a blended medical
air/oxygen mixture and assures
the integrity of the precise
air/oxygen mixture via an integral
oxygen analyzer. | The Precision Flow® - Heliox is
intended to warm and add
moisture to breathing gases
from an external source for
administration to
neonate/infant, pediatric and
adult patients in the hospital
and sub-acute institutions. It
adds heat and moisture to a
blended medical heliox (79%
helium, 21% oxygen)/oxygen
mixture and assures the
integrity of the precise heliox
(79% helium, 21%
oxygen)/oxygen mixture via an
integral oxygen analyzer. The
flow rates may be from 1 to 40
liters per minute via nasal
cannula. | Equivalent |
| 2 | Patient
population | Neonate/infant, pediatric, and
adult patients. | Neonate/infant, pediatric and
adult patients | Equivalent |
| 3 | Technology | Electronic/Mechanical | Electronic/Mechanical | Equivalent |
| 4 | Oxygen %
Range | 21 to 100% | 21 to 100% | Equivalent |
| 5 | Oxygen
Concentration
Monitor | Internal oxygen analyzer | Internal oxygen analyzer | Equivalent |

6

  • The Precision Medical, Inc. Heliox/Oxygen Blender needs a minimum input flow rate of 30 psi to operate. In order to delivery a lower flow rate to the patient, the excess gas is vented to atmosphere (bleed).

A comparison of the Precision Flow® - Oxygen/Heliox to the Precision Flow® - Oxygen/Air is as follows:

7

| 6 | Oxygen
Concentration
Range | 21 to 100% | 21 to 100% | Equivalent | |
|----|--------------------------------------|----------------------------------------|---------------------------------------------------------------|------------|------------|
| 7 | Supply
Pressure
Range | 4 to 70 psi, Air/Oxygen | 4 to 70 psi, Heliox medical
grade & certified gas cylinder | Equivalent | |
| 8 | Operating
Temperature | 33° to 43° C | 33° to 43° C | Equivalent | |
| 9 | Environment of
use | Hospital and sub-acute
institutions | Hospital and sub-acute
institutions | Equivalent | |
| 10 | Condition Gas:
Warm &
Humidify | Integrated into device | Integrated into device | Equivalent | |
| 11 | FiO2 Accuracy | 1 to 40 lpm: +/- 2 % | 2 to 40 lpm: +/- 2%
to 2 lpm: +/- 5% | 1 | Equivalent |
| 12 | Max Flow
Range | 40 Ipm | 40 Ipm | Equivalent | |

8

| # | Item | Vapotherm, Inc. Precision
Flow® - Oxygen/Air, K053232 | Vapotherm, Inc. Precision
Flow® - Oxygen/Heliox;
K111640 | Comments |
|----|----------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------|
| 13 | Alarms | Alarms for General Fault (internal
component failure), Blocked
Delivery Tube, Water Out,
Disposable Water Path function,
Battery Charging (AC
disconnected), Vapor Transfer
Cartridge type & fault, Gas
Supply, Gas Temperature | Alarms for General Fault
(internal component failure),
Blocked Delivery Tube, Water
Out, Disposable Water Path
function, Battery Charging (AC
disconnected), Vapor Transfer
Cartridge type & fault, Gas
Supply, Gas Temperature | Equivalent |
| 14 | Alarm Sound
Level | Medium Priority 47 db @ 1 m
Low Priority 45 db @ 1 m. | Medium Priority 47 db @ 1 m
Low Priority 45 db @ 1 m. | Equivalent |
| 15 | Inlet Fitting | DISS or NIST | DISS or NIST | Equivalent |

The Precision Flow® - Heliox has the same intended uses and similar indications, technological characteristics, and principles of operation as the Precision Medical, Inc. Heliox/Oxygen Blender (K090781). The conversion of the mass flow meter from air to Heliox and the minor change for the percentage oxygen range raises no new issues of safety or effectiveness. Performance data of the blending of Heliox and oxygen demonstrate that the Precision Flow® - Heliox is as safe and effective. Thus, the Precision Flow® - Heliox is substantially equivalent.

9

Image /page/9/Picture/1 description: The image shows the logo for the Department of Health & Human Services USA. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" around the perimeter. Inside the circle is a stylized symbol that resembles a human figure with three wavy lines representing the head, body, and legs. The symbol is black, and the background is white.

Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002

Mr. Gregory A. Whitney Vice President Regulatory Affairs Vapotherm, Incorporated 198 Log Canoe Circle Stevensville, Maryland 21666

OCT - 7 2011

Re: K111640

Trade/Device Name: Vapotherm Precision Flow®, Heliox Regulation Number: 21 CFR 868.5450 Regulation Name: Respiratory Gas Humidifier Regulatory Class: II Product Code: BTT Dated: September 26, 2011 Received: September 29, 2011

Dear Mr. Whitney:

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. 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, Novever, 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.

10

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 regencies. 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 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices /ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/dsfault.htm.

Sincerely yours,

Th for

Anthony D. Watson, B.S., M.S., M.B.A. Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and

Radiological Health

Enclosure

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Premarket Indication for Use Statement
------------------------------------------

510(k) Number (if known): K ( 1 | 6 4 O

Vapotherm Precision Flow®, Heliox Device Name:

Indications for Use:

The Precision Flow® - Heliox is intended to warm and add moisture to breathing gases from an external source for administration to neonate/infant, pediatric and adult patients in the hospital and sub-acute institutions. It adds heat and moisture to a blended medical heliox (79% helium. 21% oxygen)/oxygen mixture and assures the integrity of the precise heliox (79% helium, 21% oxygen)/oxygen mixture via an integral oxygen analyzer. The flow rates may be from 1 to 40 liters per minute via nasal cannula.

Prescription Use X _ AND/OR (Part 21 CFR 801 Subpart D)

Over-The counter Use (21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

P. Schulin

(Division Sign-Off) Division of Anesthesiology, General Hospital Infection Control, Dental Devices

510(k) Number: 4-111640 Page __ of __