K Number
K234155
Device Name
Nimbl (model PD08-N1)
Manufacturer
Date Cleared
2024-06-21

(175 days)

Product Code
Regulation Number
870.5800
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Nimbl system is intended for use by medical professionals and patients who are under medical supervision, for the treatment of the following conditions: - Chronic edema - Lymphedema - Venous insufficiency - Wound healing
Device Description
The Nimbl system is a pneumatic compression device that delivers intermittent sequential compression treatment to affected extremities for lymphedema, chronic edema, venous insufficiency, and wound healing. This device helps direct and move excess fluid from an impaired lymphatic region to healthy regions, where fluid can be absorbed and processed naturally by the body. The Nimbl controller is used to inflate the connected garment chambers in a pre-programmed sequence from the distal end to the proximal end of the patient. The pressure gradient provides higher distal pressures. This creates a dynamic wave of therapy that directs fluid into the lymphatic capillaries while maintaining distal prevent distal backflow. The patient's healthcare provider determines what pressure setting is appropriate for the patient.
More Information

Not Found

No
The description focuses on pre-programmed sequences and pressure settings determined by the healthcare provider, with no mention of adaptive algorithms or learning capabilities.

Yes
The device is described as treating conditions like chronic edema, lymphedema, and venous insufficiency, and explicitly states its intended use is for "treatment of the following conditions."

No

The description explicitly states its intended use for "treatment" of various conditions, and the device description details how it delivers "intermittent sequential compression treatment." There is no mention of it being used to diagnose or detect conditions.

No

The device description explicitly states it is a "pneumatic compression device" and mentions a "Nimbl controller" used to inflate "connected garment chambers." This indicates the device includes hardware components beyond just software.

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

Here's why:

  • IVD devices are used to examine specimens derived from the human body (like blood, urine, tissue) to provide information for diagnosis, monitoring, or screening. The Nimbl system does not interact with or analyze any biological specimens.
  • The Nimbl system is a therapeutic device. Its intended use is to treat conditions like chronic edema, lymphedema, venous insufficiency, and wound healing through physical means (pneumatic compression).
  • The device description clearly outlines a mechanical process of inflating garments to move fluid, not a process of analyzing biological samples.

Therefore, the Nimbl system falls under the category of a therapeutic medical device, not an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

The Nimbl system is intended for use by medical professionals and patients who are under medical supervision, for the treatment of the following conditions: - Chronic edema - Lymphedema - Venous insufficiency - Wound healing

Product codes

JOW

Device Description

The Nimbl system is a pneumatic compression device that delivers intermittent sequential compression treatment to affected extremities for lymphedema, chronic edema, venous insufficiency, and wound healing. This device helps direct and move excess fluid from an impaired lymphatic region to healthy regions, where fluid can be absorbed and processed naturally by the body. The Nimbl controller is used to inflate the connected garment chambers in a pre-programmed sequence from the distal end to the proximal end of the patient. The pressure gradient provides higher distal pressures. This creates a dynamic wave of therapy that directs fluid into the lymphatic capillaries while maintaining distal prevent distal backflow. The patient's healthcare provider determines what pressure setting is appropriate for the patient.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

affected extremities

Indicated Patient Age Range

Not Found

Intended User / Care Setting

medical professionals and patients who are under medical supervision / Hospital, clinical, and home settings

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)

Based on the modifications made to the predicate device, the following types of testing have been completed for the Nimbl device to support the substantial equivalence determination:

  • I Electrical safety and electromagnetic compatibility (EMC) testing, following IEC 60601-1 Medical electrical equipment – General requirements for basic safety and essential performance
  • Software verification and validation (including cybersecurity), following IEC 62304 Medical device software - Software life cycle processes
  • . Mechanical bench testing, including pressure verification, port strength, and component life testing
  • " Usability testing
  • 트 Environment and distribution testing
    The technological comparison and performance testing together demonstrate that Nimbl has a similar safety and effectiveness profile as the predicate device.

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

Not Found

Predicate Device(s)

K143185

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 870.5800 Compressible limb sleeve.

(a)
Identification. A compressible limb sleeve is a device that is used to prevent pooling of blood in a limb by inflating periodically a sleeve around the limb.(b)
Classification. Class II (performance standards).

0

Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health and Human Services logo on the left and the FDA acronym and name on the right. The FDA acronym and name are in blue, with the acronym in a larger font size than the name. The name is written as "U.S. FOOD & DRUG ADMINISTRATION".

June 21, 2024

Tactile Medical % Charmaine Dwyer Managing Director The Tamarack Group-MPLS, LLC 23730 Lawtonka Drive Shorewood. Minnesota 55331

Re: K234155

Nimbl (model PD08-N1) Trade/Device Name: Regulation Number: 21 CFR 870.5800 Regulation Name: Compressible limb sleeve Regulatory Class: Class II Product Code: JOW Dated: May 22, 2024 Received: May 22, 2024

Dear Charmaine Dwyer:

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 (the 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 available 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.

Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).

1

Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).

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); medical device reporting of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 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 (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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).

Sincerelv.

Nicole M. Gillette -S

Nicole Gillette Assistant Director DHT2B: Division of Circulatory Support, Structural and Vascular Devices OHT2: Office of Cardiovascular Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

2

Indications for Use

Submission Number (if known)

K234155

Device Name

Nimbl (PD08-N1)

Indications for Use (Describe)

The Nimbl system is intended for use by medical professionals and patients who are under medical supervision, for the treatment of the following conditions: - Chronic edema - Lymphedema - Venous insufficiency - Wound healing

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

Prescription Use (Part 21 CFR 801 Subpart D)

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

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Image /page/3/Picture/1 description: The image shows the logo for Tactile Medical. The word "Tactile" is in a large, sans-serif font, stacked on top of the word "MEDICAL" in a smaller, sans-serif font. The logo is white against a dark blue background. There is a small trademark symbol to the right of the word MEDICAL.

510(k) Summary

Nimbl

Prepared May 1, 2024

Submitter

Manufacturer:Contact Person:
Tactile Medical
3701 Wayzata Blvd, Suite 300
Minneapolis, MN 55416Vishal Agarwal, Senior Manager – Quality & Regulatory
vagarwal@tactilemedical.com
612-800-5535

Device

Device Name:Nimbl (model PD08-N1)
Common / Usual Name:Pneumatic compression device
Classification Name:Compressible limb sleeve (21 CFR 870.5800)
Product CodeSleeve, limb, compressible (JOW)
Device Regulatory Class:Class 2

Predicate

Device Name:Entre (model PD08-U)
Premarket Notification Number:K143185

Device Description

The Nimbl system is a pneumatic compression device that delivers intermittent sequential compression treatment to affected extremities for lymphedema, chronic edema, venous insufficiency, and wound healing.

This device helps direct and move excess fluid from an impaired lymphatic region to healthy regions, where fluid can be absorbed and processed naturally by the body. The Nimbl controller is used to inflate the connected garment chambers in a pre-programmed sequence from the distal end to the proximal end of the patient. The pressure gradient provides higher distal pressures. This creates a dynamic wave of therapy that directs fluid into the lymphatic capillaries while maintaining distal prevent distal backflow. The patient's healthcare provider determines what pressure setting is appropriate for the patient.

4

Image /page/4/Picture/1 description: The image shows the logo for Tactile Medical. The logo is set against a blue background. The word "Tactile" is in a large, white, sans-serif font, and the word "MEDICAL" is in a smaller, white, sans-serif font below it. There is a small white circle to the right of the word "Tactile".

Indications for Use

The Nimbl system is intended for use by medical professionals and patients who are under medical supervision, for the treatment of the following conditions:

  • . Chronic edema
  • Lymphedema
  • . Venous insufficiency
  • . Wound healing

The subject and predicate devices have the same intended use and are both prescription devices.

Comparison of Technological Characteristics with the Predicate Device

The Nimbl device and the predicate Entre device are pneumatic compression devices that utilize the same fundamental technology, mode of action, and principles of operation. They are based on the same basic design, software/firmware, hardware, and materials, and device features are similar. They both require a power source for operation. A high-level comparison is provided below.

Nimbl (model PD08-N1) system (subject device)Entre (model PD08-U) system (predicate device)Comparison
Product TypePneumatic compression devicePneumatic compression deviceSame
ComponentsControllerControllerThe subject device has the option of battery power supply; the predicate does not have this feature.
GarmentsGarments
HosesHoses
Power adapterPower adapter
External battery
Mode of ActionHelps direct and move excess fluid from impaired lymphatic regions to healthy regions, where fluid can be absorbed and processed naturally by the body.Helps direct and move excess fluid from impaired lymphatic regions to healthy regions, where fluid can be absorbed and processed naturally by the body.Same
Principles of OperationThe controller inflates the connected garment chambers in a pre-programmed sequence from distal to proximal with a pressure gradient that provides high distal pressures. The garment chambers are sequentially inflated, pressure is held, and then all chambers are deflated simultaneously.The controller inflates the connected garment chambers in a pre-programmed sequence from distal to proximal with a pressure gradient that provides high distal pressures. The garment chambers are sequentially inflated, pressure is held, and then all chambers are deflated simultaneously.Same
Environment of UseHospital, clinical, and home settingsHospital, clinical, and home settingsSame
Device Lifetime5 years5 years
Controller Size and Weight8.0" x 5.5" x 2.0"11.0" x 6.0" x 8.0"The subject device is smaller and weighs less
1.75 lbs4 lbs
Nimbl (model PD08-N1) system (subject device)Entre (model PD08-U) system (predicate device)Comparison
Electrical
Requirements100 Vac – 264 VAC, ~50/60 Hz
10.9 V rechargeable battery
pack100 Vac – 240 VAC, ~47/63 Hzthan the predicate, primarily due to its smaller compressor.
The subject and predicate devices have similar power requirements.
Controller
Enclosure
MaterialPlasticPlasticSame
User InterfacePush buttons (silicone pad with carbon puck)Push buttons (membrane switch)Same
Wireless
FunctionsBluetoothNoneThe subject device has Bluetooth capability for optional use with the designated mobile application; the predicate device does not have this feature.
Software /
Hardware TypeAnalog and digital electronics with microprocessorAnalog and digital electronics with microprocessorSame
Software-
Concern LevelBasic Documentation LevelModerate Level of ConcernSame
Minor software updates have been made.
Pressure Range19-60 mmHg20-80 mmHgSimilar; upper limit lowered for patient comfort.
Output
Dwell TimeSequential gradient pressure
25 seconds minimumSequential gradient pressure
25 seconds minimumSame
Treatment Time1 hour maximum1 hour maximumSame
Garment
Chamber
Pressure ControlPressure basedPressure basedSame
Garment-
Controller
ConnectionsOptional detachable tether hose and new connectorsNo detachable tether hoseThe subject device features new connectors on the garment and controller, and an optional tether hose, compared to the predicate.
Garment PortNew port designOlder port designSimilar; the port snout and base design has been updated.
Garment
MaterialsNylon fabric
Polyurethane coated polyester fabricNylon fabric
Polyurethane coated polyester fabricSame
Garment
Chambers88Same
Nimbl (model PD08-N1) system (subject device)Entre (model PD08-U) system (predicate device)Comparison
Device
CleanabilityCleanable using commonly available mild household products and disinfectants.Cleanable using commonly available mild household products and disinfectants.Same

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Image /page/5/Picture/1 description: The image shows the logo for Tactile Medical. The word "Tactile" is in a large, bold, sans-serif font, and the word "MEDICAL" is in a smaller, sans-serif font below it. The logo is in a dark blue color, and the background is white. There is a small circle to the right of the word "Tactile".

6

Image /page/6/Picture/1 description: The image shows the logo for Tactile Medical. The word "Tactile" is in a large, bold, sans-serif font in a dark blue color. Below the word "Tactile" is the word "MEDICAL" in a smaller, sans-serif font, also in dark blue. There is a small circle above the "i" in "Tactile".

Technological differences, resulting from modifications made to the predicate device, include:

  • . Bluetooth connectivity for optional use with the Kylee Mobile App to transfer usage data, supporting user ability to log treatments in the mobile application.
  • l an external battery to support portability.
  • 트 a smaller controller to support portability.
  • 트 garment-controller connection updates to support portability.

These differences do not raise any different questions of safety or effectiveness for the Nimbl system compared to the predicate device.

Performance Data

Based on the modifications made to the predicate device, the following types of testing have been completed for the Nimbl device to support the substantial equivalence determination:

  • I Electrical safety and electromagnetic compatibility (EMC) testing, following IEC 60601-1 Medical electrical equipment – General requirements for basic safety and essential performance
  • Software verification and validation (including cybersecurity), following IEC 62304 Medical device software - Software life cycle processes
  • . Mechanical bench testing, including pressure verification, port strength, and component life testing
  • " Usability testing
  • 트 Environment and distribution testing

The technological comparison and performance testing together demonstrate that Nimbl has a similar safety and effectiveness profile as the predicate device.

Conclusion

The Nimbl device is substantially equivalent to the legally marketed predicate device.