K Number
K213159
Device Name
Encore System
Date Cleared
2021-12-22

(85 days)

Product Code
Regulation Number
872.5570
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdparty
Intended Use
The Encore System is intended for anterior advancement of the tongue base and hyoid suspension. It is indicated for the treatment of obstructive sleep apnea (OSA) and/or snoring.
Device Description
The Encore System is designed for anterior tongue base suspension by fixation of the soft tissue of the tongue base to the mandible bone and hyoid bone suspension to the mandible bone using a bone screw and suspension lines. The Encore System consists of 1) an integrated suture passer pre-loaded with size #2-0 braided polyester suture, 2) three (3) bone screws and two (2) bone screw inserters, 3) a suspension line lock tool, 4) a threading tool, and 5) a drill bit. In addition, the following suspension lines are provided depending on the model number: 1) #2 braided polyester suspension line and 2) #2 braided polyethylene suspension line.
More Information

Not Found

No
The device description focuses on mechanical components and surgical procedures, with no mention of software, algorithms, or data processing that would indicate AI/ML. The "Mentions AI, DNN, or ML" section is explicitly "Not Found".

Yes
The device is described as being "intended for the treatment of obstructive sleep apnea (OSA) and/or snoring," which are medical conditions, and it physically modifies the body to achieve this treatment.

No

The device description indicates that the Encore System is designed for physical manipulation (anterior tongue base suspension and hyoid bone suspension) to treat obstructive sleep apnea and snoring, which is a therapeutic function, not a diagnostic one.

No

The device description explicitly lists multiple hardware components, including a suture passer, bone screws, inserters, tools, a drill bit, and suspension lines.

No, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use is for a surgical procedure to treat obstructive sleep apnea and snoring by physically altering the position of the tongue base and hyoid bone. This is a therapeutic intervention performed on the patient's body.
  • Device Description: The device consists of surgical tools and implants (suture passer, bone screws, suspension lines, etc.) used during a surgical procedure.
  • Lack of IVD Characteristics: An IVD device is used to examine specimens (like blood, urine, tissue) taken from the human body to provide information about a physiological state, health, disease, or congenital abnormality. This device does not perform any such analysis of specimens.

The Encore System is a surgical device used for a therapeutic purpose, not a diagnostic test performed on samples.

N/A

Intended Use / Indications for Use

The Encore System is intended for anterior advancement of the tongue base and hyoid suspension. It is indicated for the treatment of obstructive sleep apnea (OSA) and/or snoring.

Product codes (comma separated list FDA assigned to the subject device)

ORY

Device Description

The Encore System is designed for anterior tongue base suspension by fixation of the soft tissue of the tongue base to the mandible bone and hyoid bone suspension to the mandible bone using a bone screw and suspension lines. The Encore System consists of 1) an integrated suture passer pre-loaded with size #2-0 braided polyester suture, 2) three (3) bone screws and two (2) bone screw inserters, 3) a suspension line lock tool, 4) a threading tool, and 5) a drill bit. In addition, the following suspension lines are provided depending on the model number: 1) #2 braided polyester suspension line and 2) #2 braided polyethylene suspension line.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

tongue base, hyoid bone, mandible bone

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Not Found

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 testing was conducted to confirm that the implantable metallic components of the Encore System do not pose a significant risk to a patient in a clinical MRI environment under the conditions presented in the labeling.

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

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K201238

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 872.5570 Intraoral devices for snoring and intraoral devices for snoring and obstructive sleep apnea.

(a)
Identification. Intraoral devices for snoring and intraoral devices for snoring and obstructive sleep apnea are devices that are worn during sleep to reduce the incidence of snoring and to treat obstructive sleep apnea. The devices are designed to increase the patency of the airway and to decrease air turbulence and airway obstruction. The classification includes palatal lifting devices, tongue retaining devices, and mandibular repositioning devices.(b)
Classification. Class II (special controls). The special control for these devices is the FDA guidance document entitled “Class II Special Controls Guidance Document: Intraoral Devices for Snoring and/or Obstructive Sleep Apnea; Guidance for Industry and FDA.”

0

Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, with the letters "FDA" in a blue square. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.

December 22, 2021

Siesta Medical, Inc. Michael Kolber Vice President 101 Church Street Los Gatos, California 95030

Re: K213159

Trade/Device Name: Encore System Regulation Number: 21 CFR 872.5570 Regulation Name: Intraoral Devices For Snoring And Intraoral Devices For Snoring And Obstructive Sleep Apnea Regulatory Class: Class II Product Code: ORY Dated: September 25, 2021 Received: September 28, 2021

Dear Michael Kolber:

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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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, however, 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.

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

1

requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely,

Michael E. Adjodha, M.ChE. Assistant Director DHT1B: Division of Dental and ENT Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

2

Indications for Use

510(k) Number (if known) K213159

Device Name Encore System

Indications for Use (Describe)

The Encore System is intended for anterior advancement of the tongue base and hyoid suspension. It is indicated for the treatment of obstructive sleep apnea (OSA) and/or snoring.

Type of Use (Select one or both, as applicable)

X Prescription Use (Part 21 CFR 801 Subpart D)

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

CONTINUE ON A SEPARATE PAGE IF NEEDED.

This section applies only to requirements of the Paperwork Reduction Act of 1995.

DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.

The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:

Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov

"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."

3

Image /page/3/Picture/0 description: The image shows the logo for Siesta Medical. The word "Siesta" is written in a bold, sans-serif font, with a curved line above it. Below "Siesta" is the word "Medical" in a smaller, lighter font. The logo is simple and modern.

510(k) Summary ection 5

510(k) NumberK213159
Submitter Name and Address
NameSiesta Medical, Inc.
ContactMichael Kolber
Vice President, Regulatory Affairs
Address101 Church Street, Suite 3
Los Gatos, CA 95030
Telephone408-505-6626
Fax408-399-7600
Date PreparedSeptember 25, 2021
General Device Information
Product NameEncore™ System
Common NameIntraoral device for snoring and obstructive sleep apnea
Classification21CFR872.5570
Intraoral devices for snoring and intraoral devices for snoring
and obstructive sleep apnea.
Device ClassClass II
Product CodeORY
Predicate Device ManufacturerDevice Name510(k) Number
Siesta Medical, Inc.Encore SystemK201238

Device Description

The Encore System is designed for anterior tongue base suspension by fixation of the soft tissue of the tongue base to the mandible bone and hyoid bone suspension to the mandible bone using a bone screw and suspension lines. The Encore System consists of 1) an integrated suture passer pre-loaded with size #2-0 braided polyester suture, 2) three (3) bone screws and two (2) bone screw inserters, 3) a suspension line lock tool, 4) a threading tool, and 5) a drill bit. In addition, the following suspension lines are provided depending on the model number: 1) #2 braided polyester suspension line and 2) #2 braided polyethylene suspension line.

Intended Use (Indications)

The Encore System is intended for anterior advancement of the tongue base and hyoid suspension. It is indicated for the treatment of obstructive sleep apnea (OSA) and /or snoring.

Comparison to the Predicate Device

Labeling for the Encore System has been modified with respect to the MRI statement for the Encore Systems packaged with the #2 braided polyester suspension line and the #2 braided polyethylene suspension line. The labeling has changed as follows:

From:

MRI Safety Information: The ENCORE System has not been evaluated for safety and compatibility in the MR environment. It has not been tested for heating, migration or image artifact in the MR environment. The safety of the ENCORE System in the MR environment is unknown. Scanning a patient who has this device may result in patient injury.

4

Image /page/4/Picture/0 description: The image shows the logo for Siesta Medical. The word "Siesta" is in bold, black font, with a gray wave-like line above it. Below "Siesta" is the word "Medical" in a smaller, gray font. The logo is simple and modern.

To:
MRI Safety Information:
A patient implanted with the Encore Bone Screw may be safely scanned under the following
conditions. Failure to follow these conditions may result in injury to the patient.
Nominal value(s) of Static
Magnetic Field [T]1.5 T ro 3 T
Maximum Spatial Field
Gradient
[T/m and gauss/cm]30 T/m (3000 gauss/cm)
RF ExcitationCircularly Polarized (CP)
RF Transmit Coil TypeWhole body transmit coil, head RF transmit-receive coil
Maximum Whole Body SAR
[W/kg]4.0 W/kg (First Level Operating Mode)
Limits on Scan Duration4.0 W/kg whole body average SAR for 15 minutes of continuous
RF (a sequence or back to back series/scan without breaks)
MR Image ArtifactThe presence of this implant may produce an image artifact of
12mm
If information about a specific parameter is not included, there are no conditions associated with

that parameter.

In addition, the drill bit has been lengthened from 5 mm to 10 mm.

Summary of Non-Clinical Testing

Performance testing was conducted to confirm that the implantable metallic components of the Encore System do not pose a significant risk to a patient in a clinical MRI environment under the conditions presented in the labeling.

Statement of Equivalence

The Encore System has the same design, indications for use and the same technological characteristics as the predicate device. Based on this and the data provided in this pre-market notification, the subject device and the predicate device have been shown to be substantially equivalent.