K Number
K163209
Device Name
Fiagon Navigation System
Manufacturer
Date Cleared
2017-09-14

(303 days)

Product Code
Regulation Number
882.4560
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Fiagon Navigation System is intended as an aid for locating anatomical structures in either open or percutaneous neurosurgical procedures. The Fiagon Navigation System is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure in the field of cranial surgery can be identified relative to a CT or MR based model of the anatomy. Example procedures include, but are not limited to: Cranial Procedures: - Craniotomies/Craniectomies (e.g., Tumor Resection) - Skull Base Procedures - Cranial Biopsies - General Catheter Shunt Placement - Pediatric Catheter Shunt Placement The user should consult the "Bench Accuracy" section of the User Manual to assess whether the accuracy of the system is suitable for their needs.
Device Description
The Fiagon Navigation System displays the position of the instruments in preoperative scans (e.g., CT, MRI, fluoroscopy) utilizing electromagnetic tracking technology. The instrument with integrated sensor and the patient equipped with localized within an electromagnetic field generated by a field generator. The principle of navigation is based on electromagnetic spatial measuring of localizer element in a generated electromagnetic field. The display of navigation information requires an image-to-patient registration procedure. During registration procedure, the navigation system determines the coordinate transformation between the intraoperative position of the patient and the position of the preoperative scan by fiducial marker, anatomical landmark or surface matching. Thereafter, the spatial position of the instrument is displayed superimposed to the image data. The navigation is updated with a rate of 15 to 45 Hz. The components of the navigation system are 1. Navigation unit with Navigation software. It has interfaces for screen, mouse and the components 2 – 4 below. - 2. Navigation sensor (Headrest with field generator) - 3. Navigation instrument (ShuntPointer, BiopsyPointer190 and BiopsyPointer 250) 4. Patient reference localizer (Localizer Set Bone Anchor and Localizer Adhesive Pad) The navigation unit is connected to a medical monitor. The unit runs the navigation software. Preoperative radiological images of the patient (DICOM CT, CBCT, MR) are imported to the system by means of CD-ROM, USB storage media or LAN network and displayed in appropriate way defined by the software. The navigation unit includes the spatial measuring device electronics as well. This has connections to the field generating device (navigation sensor), the patient localizer and the navigation instrument. The patient reference localizer and navigation instrument are tracked within the generated field by localizer elements integrated in the devices. The patient reference localizer is fixed to the patient's anatomy and references it, while the instrument is tracked in relation to the patient localizer and thus to the patient's anatomy.
More Information

Not Found

No
The description focuses on electromagnetic tracking and image-to-patient registration based on fiducial markers, anatomical landmarks, or surface matching. There is no mention of AI or ML algorithms being used for image processing, navigation, or any other function.

No.
The device is a navigation system intended as an aid for locating anatomical structures during neurosurgical procedures; it does not directly treat or prevent a disease or condition.

No

The device is described as an "aid for locating anatomical structures" and is used to display the position of instruments during neurosurgical procedures. It is a surgical navigation system, not a device intended to diagnose a medical condition.

No

The device description explicitly lists multiple hardware components beyond just the software, including a navigation sensor (headrest with field generator), navigation instruments, and patient reference localizers. The system relies on electromagnetic tracking technology involving these hardware components.

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

Here's why:

  • IVD Definition: In vitro diagnostic devices are used to examine specimens taken from the human body, such as blood, urine, or tissue, to provide information about a person's health.
  • Fiagon Navigation System's Function: The Fiagon Navigation System is a surgical navigation system. It uses imaging data (CT, MRI, CBCT) and electromagnetic tracking to help surgeons locate anatomical structures during procedures. It does not analyze biological specimens.
  • Intended Use: The intended use clearly states it is an "aid for locating anatomical structures in either open or percutaneous neurosurgical procedures." This is a surgical guidance tool, not a diagnostic test performed on a sample.

Therefore, the Fiagon Navigation System falls under the category of a surgical navigation system, not an in vitro diagnostic device.

N/A

Intended Use / Indications for Use

The Fiagon Navigation System is intended as an aid for locating anatomical structures in either open or percutaneous neurosurgical procedures. The Fiagon Navigation System is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure in the field of cranial surgery can be identified relative to a CT or MR based model of the anatomy.

Example procedures include, but are not limited to:

Cranial Procedures:

  • Craniotomies/Craniectomies (e.g., Tumor Resection)
  • Skull Base Procedures
  • Cranial Biopsies
  • General Catheter Shunt Placement
  • Pediatric Catheter Shunt Placement

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

HAW

Device Description

The Fiagon Navigation System displays the position of the instruments in preoperative scans (e.g., CT, MRI, fluoroscopy) utilizing electromagnetic tracking technology. The instrument with integrated sensor and the patient equipped with localized within an electromagnetic field generated by a field generator. The principle of navigation is based on electromagnetic spatial measuring of localizer element in a generated electromagnetic field.

The display of navigation information requires an image-to-patient registration procedure. During registration procedure, the navigation system determines the coordinate transformation between the intraoperative position of the patient and the position of the preoperative scan by fiducial marker, anatomical landmark or surface matching. Thereafter, the spatial position of the instrument is displayed superimposed to the image data. The navigation is updated with a rate of 15 to 45 Hz.

The components of the navigation system are

  1. Navigation unit with Navigation software. It has interfaces for screen, mouse and the components 2 – 4 below.
    1. Navigation sensor (Headrest with field generator)
    1. Navigation instrument (ShuntPointer, BiopsyPointer190 and BiopsyPointer 250)
  1. Patient reference localizer (Localizer Set Bone Anchor and Localizer Adhesive Pad)

The navigation unit is connected to a medical monitor. The unit runs the navigation software. Preoperative radiological images of the patient (DICOM CT, CBCT, MR) are imported to the system by means of CD-ROM, USB storage media or LAN network and displayed in appropriate way defined by the software.

The navigation unit includes the spatial measuring device electronics as well. This has connections to the field generating device (navigation sensor), the patient localizer and the navigation instrument.

The patient reference localizer and navigation instrument are tracked within the generated field by localizer elements integrated in the devices.

The patient reference localizer is fixed to the patient's anatomy and references it, while the instrument is tracked in relation to the patient localizer and thus to the patient's anatomy.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

CT, MR, fluoroscopy (preoperative scans), DICOM CT, CBCT, MR

Anatomical Site

cranial surgery, human skull, cranium, brain

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

Measurement phantom: model of the human skull with half cranium and an imbedded structure that mimics part of the brain.
Rods with a touch point and tubes were placed in this structure to facilitate the measurement of the trajectory of the surgical tube and the target registration measurements.
The phantom was scanned with computer tomography (CT) prior to the testing.
The axial CT slices had a resolution of 0.45 mm (512 x 512 pixels) in each layer and 0.75 mm layer distance.
The positions of the reference points were measured using a Coordinate Measurement Machine (CMM) with an accuracy of 0.018 mm.
The coordinate system of the CMM was then registered with the coordinate system of the CT images.

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Bench Testing:
Bench testing was conducted to determine the device accuracy of the Fiagon Navigation System with Localizer Set Bone Anchor as the fixation method in neurosurgical procedures when using three instruments (BiopsyPointer 190, BiopsyPointer 250, and the ShuntPointer). The assessments included measuring the registration and application error related to the trajectory (from the entry point down to the final target) by comparing preoperative surgical planning for instrument insertion with the actual instrument location in the postoperative images.

The results showed that the average Target Registration Error (TRE) for the device with Localizer Set Bone Anchor was 1.17 mm (99% Cl upper bound: 2.47 mm) and the average Angular Registration Error (ARE) was 1.45° (99% CI upper bound: 2.8°), which were similar to the accuracy of the predicate devices.

Similar testing was conducted for the Localizer Adhesive Pads. The results showed that the average Target Registration Error (TRE) for the device with Localizer Adhesive Pads was 1.42 mm (99% CI upper bound: 2.42 mm) and the average Angular Registration Error (ARE) was 1.46° (99% CI upper bound: 2.9°), which were also similar to the accuracy of the predicate devices.

Biocompatibility Assessments:
The Localizer Set Bone Anchor was subjected to biocompatibility assessments for cytotoxicity, irritation, sensitization, and acute systemic toxicity, and material mediated pyrogenicity. The testing results showed that the Localizer Set Bone Anchor is biocompatible.

Conclusion:
The non-clinical data demonstrate that the device performs comparably to the predicates device for the same intended use.
The results from the bench testing demonstrate that the device performs similarly to the predicate devices.

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

Average Target Registration Error (TRE) for Localizer Set Bone Anchor: 1.17 mm (99% Cl upper bound: 2.47 mm)
Average Angular Registration Error (ARE) for Localizer Set Bone Anchor: 1.45° (99% CI upper bound: 2.8°)
Average Target Registration Error (TRE) for Localizer Adhesive Pads: 1.42 mm (99% CI upper bound: 2.42 mm)
Average Angular Registration Error (ARE) for Localizer Adhesive Pads: 1.46° (99% CI upper bound: 2.9°)

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.

K151156, K150216, K141833

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

§ 882.4560 Stereotaxic instrument.

(a)
Identification. A stereotaxic instrument is a device consisting of a rigid frame with a calibrated guide mechanism for precisely positioning probes or other devices within a patient's brain, spinal cord, or other part of the nervous system.(b)
Classification. Class II (performance standards).

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Image /page/0/Picture/1 description: The image is a seal for the Department of Health & Human Services - USA. The seal is circular, with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. In the center of the seal is a stylized image of three faces in profile, stacked on top of each other. The faces are facing to the right and are connected by a flowing line.

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

September 14, 2017

Fiagon Gmbh % Yarmela Pavlovic Regulatory Counsel Hogan Lovells US LLP 3 Embarcadero Center, Suite 1500 San Francisco, California 94111

Re: K163209

Trade/Device Name: Fiagon Navigation System Regulation Number: 21 CFR 882.4560 Regulation Name: Stereotaxic Instrument Regulatory Class: Class II Product Code: HAW Dated: August 15, 2017 Received: August 15, 2017

Dear Ms. Pavlovic:

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, 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 requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in

1

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.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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

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 Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely.

Michaelリ. Hoffmann -S

for

Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known) K163209

Device Name Fiagon Navigation System

Indications for Use (Describe)

The Fiagon Navigation System is intended as an aid for locating anatomical structures in either open or percutaneous neurosurgical procedures. The Fiagon Navigation System is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure in the field of cranial surgery can be identified relative to a CT or MR based model of the anatomy.

Example procedures include, but are not limited to:

Cranial Procedures:

  • Craniotomies/Craniectomies (e.g., Tumor Resection)
  • Skull Base Procedures
  • Cranial Biopsies
  • General Catheter Shunt Placement
  • Pediatric Catheter Shunt Placement

The user should consult the "Bench Accuracy" section of the User Manual to assess whether the accuracy of the system is suitable for their needs.

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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510(K) SUMMARY

510(k) Summary Fiagon Navigation System

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

Submitter:Fiagon GmbH
Address:Neuendorfstrasse 23b
16761 Hennigsdorf, Germany
Telephone:+49 3302 201 21 10
Telefax:+49 3302 201 21 15
Contact:Dr. Dirk Mucha, CTO
Date Prepared:2017-9-11

Name of Device and Name/Address of Sponsor

Trade Name:Fiagon Navigation System
Common Name:Image guided surgery system
Classification:Class II per 21 CFR 882.4560
Device:Stereotaxic Instrument
Product Code:HAW

Predicate Devices

  • . Fiagon Navigation System, Fiagon GmbH (K151156 - Primary Predicate)
  • StealthStation System with Synergy Cranial Software, Medtronic Navigation, Inc. (K150216) and Skull Mounted Patient Tracker (K141833)

Intended Use / Indications for Use

The Fiagon Navigation System is intended as an aid for locating anatomical structures in either open or percutaneous neurosurgical procedures. The Fiagon Navigation System is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure in the field of cranial surgery can be identified relative to a CT or MR based model of the anatomy.

Example procedures include, but are not limited to:

Cranial Procedures:

4

  • Craniotomies/Craniectomies (e.g., Tumor Resection)
  • Skull Base Procedures
  • Cranial Biopsies
  • General Catheter Shunt Placement
  • Pediatric Catheter Shunt Placement

The user should consult the "Bench Accuracy" part of the User Manual to assess if the accuracy of the system is suitable for their needs.

Device Description

The Fiagon Navigation System displays the position of the instruments in preoperative scans (e.g., CT, MRI, fluoroscopy) utilizing electromagnetic tracking technology. The instrument with integrated sensor and the patient equipped with localized within an electromagnetic field generated by a field generator. The principle of navigation is based on electromagnetic spatial measuring of localizer element in a generated electromagnetic field.

The display of navigation information requires an image-to-patient registration procedure. During registration procedure, the navigation system determines the coordinate transformation between the intraoperative position of the patient and the position of the preoperative scan by fiducial marker, anatomical landmark or surface matching. Thereafter, the spatial position of the instrument is displayed superimposed to the image data. The navigation is updated with a rate of 15 to 45 Hz.

The components of the navigation system are

  1. Navigation unit with Navigation software. It has interfaces for screen, mouse and the components 2 – 4 below.
    1. Navigation sensor (Headrest with field generator)
    1. Navigation instrument (ShuntPointer, BiopsyPointer190 and BiopsyPointer 250)
  1. Patient reference localizer (Localizer Set Bone Anchor and Localizer Adhesive Pad)

The navigation unit is connected to a medical monitor. The unit runs the navigation software. Preoperative radiological images of the patient (DICOM CT, CBCT, MR) are imported to the system by means of CD-ROM, USB storage media or LAN network and displayed in appropriate way defined by the software.

The navigation unit includes the spatial measuring device electronics as well. This has connections to the field generating device (navigation sensor), the patient localizer and the navigation instrument.

The patient reference localizer and navigation instrument are tracked within the generated field by localizer elements integrated in the devices.

5

The patient reference localizer is fixed to the patient's anatomy and references it, while the instrument is tracked in relation to the patient localizer and thus to the patient's anatomy.

The components and accessories of the system are listed in the table below:

ComponentsGroupingMaterial used (if body contact)PropertyPreviously cleared in
Navigation UnitUnitn.a.OR Equipment Rating: 110 - 240Vac 50-60 Hz, 200VACleared in K151156/K133573
BiopsyPointer 190InstrumentStainless steel medical grade adhesivereusable, 10 timesCleared in K151156
BiopsyPointer 250InstrumentStainless steel medical grade adhesivereusable, 10 timesCleared in K151156
ShuntPointerInstrumentStainless steel medical grade adhesivereusable, 10 timesCleared in K151156
Localizer Set Bone AnchorPatient reference localizern.a.reusablePart of this submission
Localizer Adhesive PadPatient reference localizern.a.reusableCleared in K151156/K133573

Comparison of Technology Characteristics

The Fiagon Navigation System has the same intended use and similar indications for use as the predicate devices. Specifically, the intended use of the Fiagon Navigation System is identical to the predicate devices, which is use in locating anatomical structures in either open or percutaneous neurosurgical procedures. Although the modified device features an additional indication (pediatric shunt placement) compared to the predicate Fiagon device, that indication is also included in the StealthStation predicate (K150216). The device remains technologically unchanged compared to the Fiagon device cleared in K151156 with the single exception of the addition of a pinless fixation method for the localizer, which is similar to Medtronic's skull mounted patient tracker predicate (K141833) used with the predicate StealthStation. The minor differences in technological characteristics do not raise any different questions of safety or effectiveness. All three devices use electromagnetic tracking technology, and utilize anatomical or fiducial reference points on the patient's anatomy for intraoperative registration to the imagebased model of the anatomy. Performance data demonstrate that the Fiagon navigation system performs in a manner that is substantially equivalent to the predicate devices. In addition, sterilization, electrical safety/EMC and biocompatibility testing has been conducted to further support the device performance.

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Therefore, the device is substantially equivalent to its predicates.

| Property | Fiagon Navigation System | Fiagon Navigation System | StealthStation System with
Synergy Cranial Software |
|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(k) No. | Subject Device | K151156 | K150216, K141833 |
| Indications for use | The Fiagon Navigation
System is intended as an aid
for locating anatomical
structures in either open or
percutaneous neurosurgical
procedures. The Fiagon
Navigation System is
indicated for any medical
condition in which the use of
stereotactic surgery may be
appropriate, and where
reference to a rigid anatomical
structure in the field of cranial
surgery can be identified
relative to a CT or MR based
model of the anatomy. | The Fiagon Navigation
System is intended as an aid
for precisely locating
anatomical structures in either
open or percutaneous
neurosurgical procedures. The
Fiagon Navigation System is
indicated for any medical
condition in which the use of
stereotactic surgery may be
appropriate, and where
reference to a rigid anatomical
structure in the field of cranial
surgery can be identified
relative to a CT or MR based
model of the anatomy. | The StealthStation System,
with Synergy® Cranial
software, is intended as an aid
for precisely locating
anatomical structures in either
open or percutaneous
neurosurgical procedures. The
system is indicated for any
medical condition in which
reference to a rigid anatomical
structure can be identified
relative to images of the
anatomy.

This can include,

  • Cranial Biopsies
  • Tumor Resections
  • Craniotomies/Craniectomies
  • Skull Base Procedures -
    Transsphenoidal Procedures

Thalamotomies/Pallidotomies

  • Pituitary Tumor Removal
  • CSF Leak Repair
  • Pediatric Catheter Shunt
    Placement
  • General Catheter Shunt
    Placement |
    | | Example procedures include,
    but are not limited to:
    Cranial Procedures:
  • Craniotomies/Craniec
    tomies ( Eg: Tumor
    resection)
  • Skull Base
    Procedures
  • Cranial Biopsies
  • General Catheter
    Shunt Placement
  • Pediatric Catheter
    Shunt Placement | Example procedures include,
    but are not limited to:
    Cranial Procedures:
  • Craniotomies/Craniec
    tomies ( Eg: Tumor
    resection)
  • Skull Base
    Procedures
  • Cranial Biopsies
  • General Catheter
    Shunt Placement | |
    | Reference images | CT/ MR/ Cone Beam CT | CT/ MR/ Cone Beam CT | CT/X-Ray based, MR based
    Nuclear Medicine based |
    | Tracking method | Electromagnetic | Electromagnetic | Optical (infra-red)
    Electromagnetic
    Either of the technologies can
    be selected |
    | Field generator | Integrated into headrest or
    bedside mounted, Head clamp
    mounted | Integrated into headrest or
    bedside mounted, Head clamp
    mounted | Electromagnetic tracking
    system can be used from its
    discreet location on a
    StealthStation System or
    attached to the OR bedrail |
    | Method of
    registration | Surface matching
    Fiducial matching | Surface matching
    Fiducial matching | Surface matching
    Fiducial matching |
    | Instrument
    verification | Instrument verified after
    registering of patient. User
    needs to confirm on | Instrument verified after
    registering of patient. User
    needs to confirm on | Instrument is verified after
    registering to the system. User
    needs to confirm on |
    | Property | Fiagon Navigation System | Fiagon Navigation System | StealthStation System with
    Synergy Cranial Software |
    | anatomical landmark.
    Same needs to be done after
    an interval of time. | anatomical landmark.
    Same needs to be done after
    an interval of time. | anatomical landmark.
    Same needs to be done after
    an interval of time. | anatomical landmark. |
    | Tracker Location | Rigid instruments: handle
    instruments: tip | Rigid instruments: handle
    Flexible instruments: tip | Rigid instruments: handle
    Flexible instruments: tip |
    | Mean bench
    accuracy | Position Mean: