FREQUENCER, MODEL 1001

K063645 · Dymedso, Inc. · BYI · Mar 15, 2007 · Anesthesiology

Device Facts

• Record ID: K063645
• Device Name: FREQUENCER, MODEL 1001
• Applicant: Dymedso, Inc.
• Product Code: BYI · Anesthesiology
• Decision Date: Mar 15, 2007
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 868.5665
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

This device is intended to be a component of postural drainage therapy by providing a convenient method of external thorax manipulation. It is indicated for patients having respiratory ailments which involve defective mucociliary clearance, as is typical in patients suffering from cystic fibrosis as well as chronic bronchitis, bronchiectasis, ciliary dyskinesia syndromes, asthma, muscular dystrophy, neuromuscular degenerative disorders, post-operative atelectasis and thoracic wall defects.

Device Story

Frequencer™ provides airway clearance therapy via external chest wall vibration. Device uses electro-acoustical transducer (Power Head) placed on patient's chest to induce oscillatory sound waves (20-100 Hz). Frequency generator drives transducer; operator selects frequency by adjusting until patient feels sympathetic resonance. Device loosens mucus deposits to promote bronchial drainage. Used as component of postural drainage therapy. Provides gentler, less painful alternative to traditional manual 'clapping' (CCPT). Benefits patients unable to tolerate manual percussion. Clinical trial on 20 adult cystic fibrosis patients demonstrated comparable sputum expulsion to CCPT.

Clinical Evidence

Clinical trial on 20 adult patients with cystic fibrosis compared Frequencer™ to conventional chest physiotherapy (CCPT). Primary endpoint was quantity of expelled sputum per session. Results: Frequencer™ (9.24 ± 1.62 g) vs. CCPT (9.27 ± 1.62 g). Study indicates comparable efficacy.

Technological Characteristics

Electro-acoustical transducer (Power Head) driven by frequency generator. Operating frequency range: 20-100 Hz. Applied force: 0.4 - 3 N. Energy source: electric. Device is external, non-invasive.

Indications for Use

Indicated for patients with respiratory ailments involving defective mucociliary clearance, including cystic fibrosis, chronic bronchitis, bronchiectasis, ciliary dyskinesia syndromes, asthma, muscular dystrophy, neuromuscular degenerative disorders, post-operative atelectasis, and thoracic wall defects.

Regulatory Classification

Identification

A powered percussor is a device that is intended to transmit vibration through a patient's chest wall to aid in freeing mucus deposits in the lung in order to improve bronchial drainage and that may be powered by electricity or compressed gas.

Predicate Devices

• Thairapy® Vest System (K965192)
• Flutter® D Mucus Clearance Device (K972859)
• Medpulse™ Respiratory Vest System, Model 1000 (K982889)
• AbiVest™ Airway Clearance System (K012928)
• Electro Flo Percussor, Model 5000 (K031876)

Submission Summary (Full Text)

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Dymedso Frequencer™ Powered Percussor
K063645

#### II. 510(k) Summary

This summary of safety and effectiveness is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR Part 807.92.

| Date of Submission: | November 22, 2006 |
|-------------------------------|--------------------------------------------------------------------|
| Submitter: | DYMEDSO, Inc. |
| Address: | 901A, Boul. Du Curé Boivin<br>Boisbriand, Québec J7G 2S8<br>CANADA |
| Establishment Registration #: | 3004365906 |

Yvon Robert, President Contact: Phone: [phone] Fax: [phone]

Proprietary Device Name: Frequencer™ Common Name of Device: Powered Percussor Percussor, Powered-Electric Classification Name: Device Class: で BYI Product Code:

## Predicate Devices:

K965192-Thairapy® Vest System, K972859-Flutter® D Mucus Clearance Device, K982889-Medpulse™ Respiratory Vest System, Model 1000, K012928-AbiVest™ Airway Clearance System, K972859-Flutter® D Mucus Clearance Device K031876-Electro Flo Percussor, Model 5000

## Description:

The Frequencer™ provides airway clearance therapy and promotes bronchial drainage by inducing vibration in the chest walls. It induces oscillatory sound waves in the chest by means of an electro-acoustical transducer (hereafter referred to as the "Power Head") which is placed externally on the patient's chest. The Power Head is connected to a frequency generator which is capable of producing frequencies between 20 and 100 Hz. The Power Head induces sound waves in the patient's chest which are effective in loosening mucus deposits.

#### Intended Use:

This device is intended to be a component of postural drainage therapy by providing a convenient method of external thorax manipulation. It is indicated for patients having respiratory ailments which involve defective mucociliary clearance, as is typical in patients suffering from cystic fibrosis as well as chronic bronchitis, bronchiectasis, ciliary dyskinesia syndromes, asthma,

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muscular dystrophy, neuromuscular degenerative disorders, post-operative atelectasis and thoracic wall defects.

# Comparison of Technological Characteristics:

The Frequencer™ is similar to the predicate devices in terms of indications for use, contra-indications, and the intent to create vibrations in the chest wall via external stimulation. The operating principle of the proposed device differs from those of the predicate devices. Rather than mechanical percussion (Electro-Flo Percussor Model 5000), airflow-induced air pulses which are transferred through the air in the patient's throat (Flutter® D Mucus Clearance Device), or pneumatically created pressure oscillations (AbiVest™ Airway Clearance System, Medpulse™ Respiratory Vest System, Model 1000, Thairapy® Vest System), the Frequencer uses sound wave pulses from a transducer to stimulate vibration in the chest wall.

# Performance Testing

Conventional chest physiotherapy (CCPT) typically involves forces externally applied to the patient's chest of 58.10 +/- 15.32 N (13.06 +/- 3.44 lb). The Frequencer™ uses much smaller forces, namely 0.4 - 3 N (0.090 - 0.674 Ib). Technological data for pneumatic vests are typically expressed in units of pressure and therefore do not allow a basis for direct comparison. Frequencies for CCPT are typically 6.6 Hz, pneumatic vests (AbiVest™ Airway Clearance System, Medpulse™ Respiratory Vest System, Model 1000, Thairapy® Vest System) and the mechanical percussor (Electro-Flo Percussor Model 5000) are capable of delivering roughly 5-25 Hz. The Frequencer™ can deliver a range of frequencies from 20-100 Hz. The actual operating frequency is selected by varying until the patient feels a sympathetic resonance in the chest.

# Clinical Data:

The efficacy of the Frequencer™ as compared to CCPT was assessed in a clinical trial on 20 adult patients suffering from cystic fibrosis (CF). The results show that use of the Frequencer™ results in comparable quantities of expelled sputum per session as using CCPT (9.24 ± 1.62 g for the Frequencer™ vs. 9.27 ± 1.62 g for CCPT). This is despite the fact that patients treated with the Frequencer were sitting, while those receiving CCPT were lying down, thus benefiting from postural drainage.

# Conclusions:

The proposed Frequencer™ has the identical indications and intended use as well as comparable technological characteristics as the predicate devices. Only the operating principle differs, being electro-acoustic rather than pneumatic or electro-mechanical. Safety and efficacy have been demonstrated in both laboratory and clinical settings. Thus, the proposed Frequencer™ is substantially equivalent to the predicate devices.

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Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized caduceus, which is a symbol of medicine, with three wavy lines representing the department's mission to protect the health of all Americans and provide essential human services. The logo is surrounded by the text "DEPARTMENT OF HEALTH AND HUMAN SERVICES, USA" in a circular arrangement.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

# MAR 1 5 2007

Dymedso, Incorporated C/O Ms. Jean Bigoney Springfield Metallurgical Services, Incorporated 127 Main Street P.O. Box 826 Springfield, Vermont 05156-0826

Re: K063645

Trade/Device Name: The Frequencer Regulation Number: 21 CFR 868.5665 Regulation Name: Powered Percussor Regulatory Class: II Product Code: BYI Dated: February 21, 2007 Received: February 23, 2007

Dear Ms. Bigoney:

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.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting vour 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.

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# Page 2 - Ms. Bigoney

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

This letter will allow you to begin marketing your device as described in your Section 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), please contact the Office of Compliance at [phone]. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). 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 [phone] or [phone] or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.

Sincerely yours.

Clues

Chiu Lin, Ph.D. 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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# INDICATIONS FOR USE

510(k) Number: K063645 Device Name: The Frequencer Indications for Use:

The Frequencer™ provides airway clearance therapy and promotes bronchial drainage by inducing vibration in the chest walls. This device is intended to be a component of postural drainage therapy by providing a convenient method of external thorax manipulation.

It is indicated for patients having respiratory ailments which involve defective mucociliary clearance, as is typical in patients suffering from cystic fibrosis as well as chronic bronchitis, bronchiectasis, ciliary dyskinesia syndromes, asthma. muscular dystrophy, neuromuscular degenerative disorders, post-operative atelectasis and thoracic wall defects. Indications for this form of therapy are described in the Clinical Practice Guidelines for Postural Drainage Therapy of the American Association for Respiratory Care (AARC) published in 1991. This particular device provides a gentler, less painful form of therapy than the traditional "clapping" method of postural drainage therapy, allowing it to be used on patients who cannot be treated by clapping.

Prescription Use (Part 21 CFR 801 Subpart D)

AND/OR

Over-theCounter Use (Part 21 CFR 801 Subpart C)

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

Concurrence of CDRH, Office of Device Evaluation (ODE)

Morf Thler

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