K Number
K232971
Device Name
APRO 55 Catheter and Alembic Aspiration Tubing
Manufacturer
Date Cleared
2024-02-29

(161 days)

Product Code
Regulation Number
870.1250
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The APRO 55 Catheter with an aspiration pump and the Alembic Aspiration Tubing is intended for use in the revascularization of patients with acute stroke secondary to intracranial large vessel occlusive disease (within the internal carotid, middle cerebral - M1 and M2 segments, basilar, and vertebral arteries) within 8 hours of symptom onset. Patients who are ineligible for intravenous tissue plasminogen activator (IV t-PA) or who fail IV t-PA therapy are candidates for treatment. The Alembic Aspiration Tubing is intended to connect the APRO 55 Catheter to the aspiration pump.
Device Description
The APRO 55 Catheter is a single-lumen, braid and coil reinforced catheter. The APRO 55 Catheter is designed to remove thrombus from the vasculature using aspiration. The APRO 55 Catheter targets aspiration from a suction pump directly to the thrombus to remove thrombus from an occluded vessel. The APRO 55 Catheter is introduced through a guide catheter or long femoral sheath and into the intracranial vasculature and guided over a neurovascular guidewire under fluoroscopic visualization to the site of the primary occlusion. The distal shaft has a hydrophilic coating to aid navigation through the vasculature. A radiopaque marker is located at the distal end of the catheter for visualization under fluoroscopy. For the aspiration source, the APRO 55 Catheter is used in conjunction with an aspiration pump with pre-specified performance parameters that is connected using the Alembic Aspiration Tubing, along with a legally marketed canister and accessories kit. The APRO 55 Catheter is available in lengths of 125 cm and 137 cm and is provided with an introducer sheath. The Alembic Aspiration Tubing connects the APRO 55 Catheter to the aspiration pump. The flow control valve allows control of the aspiration flow using an ON/OFF switch. It is available in one size.
More Information

K173841 AXS Catalyst Distal Access Catheter as part of the AXS Universal Aspiration System

K223545 APRO® 70 Catheter and Alembic Aspiration Tubing

No
The description focuses on the mechanical aspects of the catheter and aspiration system, with no mention of AI or ML in the device description, intended use, or performance studies. The "Mentions AI, DNN, or ML" field is explicitly marked as "Not Found".

Yes
The device is described as a catheter and aspiration system intended for use in the revascularization of patients with acute stroke, which involves direct treatment of a medical condition.

No

Explanation: The device is intended for the revascularization of patients with acute stroke by removing thrombus, which is a therapeutic intervention, not a diagnostic one. It uses fluoroscopic visualization for guidance during the procedure, but the device itself does not diagnose.

No

The device description clearly outlines physical components like a catheter, tubing, and mentions use with an aspiration pump, indicating it is a hardware device, not software-only.

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

Here's why:

  • Intended Use: The intended use is to physically remove thrombus (blood clots) from blood vessels in patients with acute stroke. This is a therapeutic intervention performed directly on the patient's body.
  • Device Description: The device is a catheter designed to be inserted into the vasculature and used with an aspiration pump to remove material. This is a medical device used for treatment, not for analyzing samples taken from the body.
  • Lack of Diagnostic Function: There is no mention of the device being used to analyze biological samples (like blood, urine, tissue, etc.) to provide diagnostic information about a patient's condition.

IVD devices are used to examine specimens derived from the human body to provide information for diagnostic, monitoring, or compatibility purposes. This device's function is purely interventional and therapeutic.

N/A

Intended Use / Indications for Use

The APRO 55 Catheter with an aspiration pump and the Alembic Aspiration Tubing is intended for use in the revascularization of patients with acute stroke secondary to intracranial large vessel occlusive disease (within the internal carotid, middle cerebral - M1 and M2 segments, basilar, and vertebral arteries) within 8 hours of symptom onset. Patients who are ineligible for intravenous tissue plasminogen activator (IV t-PA) or who fail IV t-PA therapy are candidates for treatment.

The Alembic Aspiration Tubing is intended to connect the APRO 55 Catheter to the aspiration pump.

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

NRY

Device Description

The APRO 55 Catheter is a single-lumen, braid and coil reinforced catheter. The APRO 55 Catheter is designed to remove thrombus from the vasculature using aspiration. The APRO 55 Catheter targets aspiration from a suction pump directly to the thrombus to remove thrombus from an occluded vessel. The APRO 55 Catheter is introduced through a guide catheter or long femoral sheath and into the intracranial vasculature and guided over a neurovascular guidewire under fluoroscopic visualization to the site of the primary occlusion. The distal shaft has a hydrophilic coating to aid navigation through the vasculature. A radiopaque marker is located at the distal end of the catheter for visualization under fluoroscopy. For the aspiration source, the APRO 55 Catheter is used in conjunction with an aspiration pump with pre-specified performance parameters that is connected using the Alembic Aspiration Tubing, along with a legally marketed canister and accessories kit. The APRO 55 Catheter is available in lengths of 125 cm and 137 cm and is provided with an introducer sheath.

The Alembic Aspiration Tubing connects the APRO 55 Catheter to the aspiration pump. The flow control valve allows control of the aspiration flow using an ON/OFF switch. It is available in one size.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Fluoroscopic visualization

Anatomical Site

Intracranial vasculature (internal carotid, middle cerebral - M1 and M2 segments, basilar, and vertebral arteries)

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)

Alembic performed non-clinical bench testing in accordance with the same design controls, protocols, and test methods as for the reference device APRO 70 Catheter (K223545). The results demonstrate substantial equivalence of the subject APRO 55 Catheter and Alembic Aspiration Tubing to the legally marketed predicate device.

Design Verification Testing – Non-Clinical Bench:
Tests conducted include: Visual and Dimensional Characteristics, Particulate, Vacuum Integrity, Kink Resistance, Catheter Hub Leakage, Hub Compatibility, Catheter Torque Strength, Dynamic Burst Pressure, Fluid Leakage, Static Burst, Tensile Strength of Catheter Hub and Shaft, Tensile Strength of Catheter Tip, Delivery and Retrieval Force, Tip Buckling Force, Simulated Use including Clot Retrieval.
Conclusion: All tests met the acceptance criteria.

Design Verification Testing - Animal:
Substantial equivalence was established based on non-clinical performance data. Animal data were not deemed necessary.

Sterilization and Shelf-Life:
The APRO 55 Catheter and Alembic Aspiration Tubing are sterilized using an ethylene oxide sterilization cycle that was verified to a sterility assurance level of 1 x 10^-6 in accordance with ISO 11135. Aging studies for the APRO 55 Catheter and Alembic Aspiration Tubing have established that the subject device and packaging remain functional for the labeled expiration date. Aging studies for packaging integrity, seal strength, and device functionality were performed and met the acceptance criteria.

Biocompatibility:
Biocompatibility testing has been completed for the APRO 55 Catheter in accordance with ISO 10993-1.
Tests performed: Sensitization (Guinea Pig Maximization), Irritation/Intracutaneous Reactivity, Cytotoxicity (MEM Elution, L929 cells), Hemolysis – Indirect, Hemolysis – Direct, Partial Thromboplastin Time (PTT), SC5b9 Complement Activation, Acute Systemic Toxicity, Material-Mediated Pyrogenicity.
Conclusion: All biocompatibility tests showed acceptable results for the intended use. The thrombogenicity evaluation was supplemented by prior in vivo thrombogenicity evaluation of the reference device, APRO 70 Catheter.

Clinical Testing:
Substantial equivalence was established based on non-clinical performance data. Human clinical data were not deemed necessary.

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.

K173841 AXS Catalyst Distal Access Catheter as part of the AXS Universal Aspiration System

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.

K223545 APRO® 70 Catheter and Alembic Aspiration Tubing

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

§ 870.1250 Percutaneous catheter.

(a)
Identification. A percutaneous catheter is a device that is introduced into a vein or artery through the skin using a dilator and a sheath (introducer) or guide wire.(b)
Classification. Class II (performance standards).

0

August 29, 2024

Image /page/0/Picture/1 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 & Human Services logo on the left and the FDA text logo on the right. The FDA text logo is in blue and includes the words "FDA U.S. FOOD & DRUG" in a larger font size and "ADMINISTRATION" in a smaller font size below.

Alembic, LLC Lisa Yen Director of Regulatory and Quality 627 National Avenue Mountain View, California 94043

Re: K232971

Trade/Device Name: APRO 55 Catheter and Alembic Aspiration Tubing Regulation Number: 21 CFR 870.1250 Regulation Name: Percutaneous Catheter Regulatory Class: Class II Product Code: NRY

Dear Lisa Yen:

The Food and Drug Administration (FDA) is sending this letter to notify you of an administrative change related to your previous substantial equivalence (SE) determination letter dated February 29, 2024. Specifically, FDA is updating this SE Letter as an administrative correction to update the 510(k) Summary to reflect the biocompatibility testing conducted in support of the APRO 55 Catheter.

Please note that the 510(k) submission was not re-reviewed. For questions regarding this letter please contact Naira Muradyan, Ph.D., OHT5: Office of Neurological and Physical Medicine Devices, 240-402-4918, Naira.Muradyan@fda.hhs.gov.

Sincerely,

Naira Muradyan -S

Naira Muradyan, Ph.D. Assistant Director DHT5A: Division of Neurosurgical, Neurointerventional, and Neurodiagnostic Devices OHT5: Office of Neurological and Physical Medicine Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

1

February 29, 2024

Image /page/1/Picture/1 description: The image shows the logo for the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA acronym and name on the right. The Department of Health & Human Services logo is a stylized depiction of a human figure. The FDA acronym is in a blue square, and the words "U.S. FOOD & DRUG ADMINISTRATION" are in blue text.

Alembic, LLC Lisa Yen Director of Regulatory and Quality 627 National Avenue Mountain View. California 94043

Re: K232971

Trade/Device Name: APRO 55 Catheter and Alembic Aspiration Tubing Regulation Number: 21 CFR 870.1250 Regulation Name: Percutaneous Catheter Regulatory Class: Class II Product Code: NRY Dated: January 26, 2024 Received: January 29, 2024

Dear Lisa Yen:

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 (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/cdrb/cfdocs/cfpm/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).

2

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-devices/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,

Naira Muradyan -S

Naira Muradyan, Ph.D. Assistant Director DHT5A: Division of Neurosurgical, Neurointerventional and Neurodiagnostic Devices OHT5: Office of Neurological and Physical Medicine Devices Office of Product Evaluation and Ouality Center for Devices and Radiological Health

3

Indications for Use

510(k) Number (if known) K232971

Device Name

APRO 55 Catheter and Alembic Aspiration Tubing

Indications for Use (Describe)

The APRO 55 Catheter with an aspiration pump and the Alembic Aspiration Tubing is intended for use in the revascularization of patients with acute stroke secondary to intracranial large vessel occlusive disease (within the internal carotid, middle cerebral - M1 and M2 segments, basilar, and vertebral arteries) within 8 hours of symptom onset. Patients who are ineligible for intravenous tissue plasminogen activator (IV t-PA) or who fail IV t-PA therapy are candidates for treatment.

The Alembic Aspiration Tubing is intended to connect the APRO 55 Catheter to the aspiration pump.

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) Number: K232971

This 510(k) Summary is provided in accordance with the requirements of 21 CFR §807.92.

1) Submitter information

| Submitter: | Alembic, LLC
627 National Ave.
Mountain View, CA 94043 |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------|
| Contact: | Lisa Yen
Director of Regulatory and Quality
Telephone Number: (650) 388-5087
Fax: (650) 390-0107
Email: lyen@alembicllc.com |
| Date Prepared: | Mar 05, 2024 |

2) Device Name and Classification

Trade/Proprietary Name:APRO® 55 Catheter and Alembic Aspiration Tubing
Common Name:Catheter, Thrombus Retriever
Classification Name:Percutaneous Catheter, 21 CFR 870.1250
Regulatory Class:Class II
Product Code:NRY
Review Panel:Neurology

3) Legally Marketed Predicate Device and Reference Device

| Predicate Device: | K173841 AXS Catalyst Distal Access Catheter as part of the AXS
Universal Aspiration System |
|-------------------|-----------------------------------------------------------------------------------------------|
| Reference Device: | K223545 APRO® 70 Catheter and Alembic Aspiration Tubing |

4) Device Description

The APRO 55 Catheter is a single-lumen, braid and coil reinforced catheter. The APRO 55 Catheter is designed to remove thrombus from the vasculature using aspiration. The APRO 55 Catheter targets aspiration from a suction pump directly to the thrombus to remove thrombus from an occluded vessel. The APRO 55 Catheter is introduced through a guide catheter or long femoral sheath and into the intracranial vasculature and guided over a neurovascular guidewire under fluoroscopic visualization to the site of the primary occlusion. The distal shaft has a hydrophilic coating to aid navigation through the vasculature. A radiopaque marker is located at the distal end of the catheter for visualization under fluoroscopy. For the

5

aspiration source, the APRO 55 Catheter is used in conjunction with an aspiration pump with pre-specified performance parameters that is connected using the Alembic Aspiration Tubing, along with a legally marketed canister and accessories kit. The APRO 55 Catheter is available in lengths of 125 cm and 137 cm and is provided with an introducer sheath.

The Alembic Aspiration Tubing connects the APRO 55 Catheter to the aspiration pump. The flow control valve allows control of the aspiration flow using an ON/OFF switch. It is available in one size.

5) Indications for Use

The APRO 55 Catheter with an aspiration pump and the Alembic Aspiration Tubing is intended for use in the revascularization of patients with acute ischemic stroke secondary to intracranial large vessel occlusive disease (within the internal carotid, middle cerebral - M1 and M2 segments, basilar, and vertebral arteries) within 8 hours of symptom onset. Patients who are ineligible for intravenous tissue plasminogen activator (IV t-PA) or who fail IV t-PA therapy are candidates for treatment.

The Alembic Aspiration Tubing is intended to connect the APRO 55 Catheter to the aspiration pump.

6) Technological Characteristics Comparison

Alembic has demonstrated the APRO 55 Catheter and Alembic Aspiration Tubing are substantially equivalent to the predicate AXS Catalyst Distal Access Catheter based on the similarity in materials, similarity in design concept, and the same fundamental operating principles. A comparison of the APRO 55 Catheter with the predicate device is summarized in Table 1 below. There are no changes to the Alembic Aspiration Tubing compared to that included as part of the K223545 submission.

Table 1 - APRO 55 Catheter Comparison with the Predicate Device and Reference Device

| Category | Subject Device
APRO 55 Catheter and
Alembic Aspiration Tubing | Predicate Device
AXS Catalyst Distal
Access Catheter as part of
the AXS Universal
Aspiration System | Reference Device
APRO 70 Catheter and
Alembic Aspiration Tubing |
|------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(k) Number | K232971 | K173841 | K223545 |
| Regulatory Class | Identical to predicate | Class II, 21 CFR 870.1250,
NRY | Class II, 21 CFR 870.1250,
NRY |
| Indications for Use | The APRO 55 Catheter with
an aspiration pump and the
Alembic Aspiration Tubing is
intended for use in the
revascularization of patients
with acute ischemic stroke
secondary to intracranial large
vessel occlusive disease
(within the internal carotid,
middle cerebral - M1 and M2
segments, basilar, and
vertebral arteries) within 8 | The AXS Catalyst Distal
Access Catheter as part of
the AXS Universal
Aspiration System is
indicated for use in the
revascularization of patients
with acute ischemic stroke
secondary to intracranial
large vessel occlusive
disease (in the
internal carotid, middle
cerebral - M1 and M2 | The APRO 70 Catheter with
an aspiration pump and the
Alembic Aspiration Tubing is
intended for use in the
revascularization of patients
with acute ischemic stroke
secondary to intracranial
large vessel occlusive disease
(within the internal carotid,
middle cerebral - M1 and M2
segments, basilar, and
vertebral arteries) within 8 |
| Category | Subject Device
APRO 55 Catheter and
Alembic Aspiration Tubing | Predicate Device
AXS Catalyst Distal
Access Catheter as part of
the AXS Universal
Aspiration System | Reference Device
APRO 70 Catheter and
Alembic Aspiration Tubing |
| | hours of symptom onset.
Patients who are ineligible for
intravenous tissue
plasminogen activator (IV t-
PA) or who fail IV t-PA
therapy are candidates for
treatment.
The Alembic Aspiration
Tubing is intended to connect
the APRO 55 Catheter to the
aspiration pump. | hours of symptom onset.
segments, basilar, and
vertebral arteries) within 8
hours of symptom onset.
Patients who are ineligible
for intravenous tissue
plasminogen activator (IV
t-PA) or who failed IV t-PA
are candidates
for treatment. | hours of symptom onset.
Patients who are ineligible for
intravenous tissue
plasminogen activator (IV t-
PA) or who fail IV t-PA
therapy are candidates for
treatment.
The Alembic Aspiration
Tubing is intended to connect
the APRO 70 Catheter to the
aspiration pump. |
| Principles of
Operation | Same as predicate, reference | Using conventional
catheterization techniques
under fluoroscopic guidance,
the catheter is advanced into
the target vessel over an
appropriate neurovascular
guidewire. The catheter is
positioned proximal to the
thrombus to aspirate. | Using conventional
catheterization techniques
under fluoroscopic guidance,
the catheter is advanced into
the target vessel over an
appropriate neurovascular
guidewire. The catheter is
positioned proximal to the
thrombus to aspirate. |
| Materials | | | |
| Hub | Same as predicate | Nylon | Polycarbonate |
| Adhesive | Same as reference | None | Cyanoacrylate |
| Strain Relief | Same as reference | Thermoplastic rubber | Santoprene (thermoplastic
elastomer) |
| Liner | Same as reference | Polytetrafluoroethylene
(PTFE) | PTFE/Tecoflex composite |
| Shaft Coil or
Braid | Same as reference | Stainless steel with nitinol
wire and polymer fiber | 304V stainless steel braid
304V stainless steel coil |
| Extrusions | Same as reference | Pebax, Nylon | Thermoplastic polyurethanes,
thermoplastic elastomer |
| Marker Band | Same as predicate, reference | Platinum/ iridium | Platinum/ iridium |
| Coating | Same as predicate, reference | Hydrophilic coating | Hydrophilic coating |
| Dimensions | | | |
| Proximal Outer
Diameter | 0.066 inch | 5.6 F (0.073 inch)
6.0 F (0.078 inch) | 0.083 inch |
| Distal Outer
Diameter | 0.066 inch | 5.3 F (0.069 inch)
5.4 F (0.070 inch) | 0.083 inch |
| Inner Diameter (ID) | 0.055 inch | 0.058 inch, 0.060 inch | 0.070 inch |
| Effective Length | 125, 137 cm | 115, 132 cm | 125, 132, 135 cm |
| Coated Length | 90, 102 cm | 65, 82 cm | 90, 97, 100 cm |
| Tip Shape | Same as predicate, reference | Straight | Straight |
| Accessories | | | |
| Introducer Sheath | Same as predicate, reference | Yes | Yes |
| Rotating
Hemostasis Valve | Same as reference | Yes | None |
| Category | Subject Device
APRO 55 Catheter and
Alembic Aspiration Tubing | Predicate Device
AXS Catalyst Distal
Access Catheter as part of
the AXS Universal
Aspiration System | Reference Device
APRO 70 Catheter and
Alembic Aspiration Tubing |
| Packaging Materials | | | |
| Pouch | Same as predicate, reference | Nylon/polyethylene/Tyvek | Nylon/polyethylene/Tyvek |
| Packaging Tube | Same as predicate, reference | Polyethylene | Polyethylene |
| Packaging Card | Same as predicate, reference | Yes | Polyethylene |
| Shelf Carton | Same as predicate, reference | Solid bleached sulfate
paperboard | Solid bleached sulfate
paperboard |
| Other | | | |
| Sterilization | Same as predicate, reference | Ethylene oxide | Ethylene oxide |
| Shelf Life | Same as reference | 2 years | 6 months |
| Use | Same as predicate, reference | Sterile, single use,
disposable | Sterile, single use, disposable |
| Alembic Aspiration Tubing | | | |
| Aspiration Tubing | Same as reference | 300 cm length
Tubing ID = 0.218 inch | 110 inch length
Tubing ID = 0.110 inch |

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7

7) Performance Data

Alembic performed non-clinical bench testing in accordance with the same design controls, protocols, and test methods as for the reference device APRO 70 Catheter (K223545). The results demonstrate substantial equivalence of the subject APRO 55 Catheter and Alembic Aspiration Tubing to the legally marketed predicate device.

A. Design Verification Testing – Non-Clinical Bench

Included in Table 2 is the description of bench performance tests that were conducted to support substantial equivalence determination.

TestAcceptance CriteriaConclusion
Visual and Dimensional
CharacteristicsCatheter meets the visual and dimensional
specifications.
Introducer Sheath meets the visual and
dimensional specifications.The APRO 55 Catheter met the
acceptance criteria.
The Introducer Sheath met the
acceptance criteria.
ParticulateCatheter meets the acceptance criteria.
Subject device was evaluated with a
predicate device under the same test
conditions.The APRO 55 Catheter met the
acceptance criteria.
Vacuum IntegrityCatheter is free from collapse and loss of
vacuum between aspiration source and
catheter tip.The APRO 55 Catheter met the
acceptance criteria.
Kink ResistanceCatheter shaft shall not kink at clinically
relevant radii.The APRO 55 Catheter met the
acceptance criteria.
Catheter Hub LeakageCatheter does not leak into hub assembly
during aspiration, with methods specified
in ISO 10555-1, Annex D.The APRO 55 Catheter met the
acceptance criteria.
Hub CompatibilityHub meets the requirements per EN ISO
80369-7The APRO 55 Catheter met the
acceptance criteria.

Table 2 – Summary of Non-Clinical Bench Test Results

8

TestAcceptance CriteriaConclusion
Catheter Torque StrengthCatheter must withstand the minimum
required number of rotations without
breakage and without kinking compared to
legally marketed devices.The APRO 55 Catheter met the
acceptance criteria.
Dynamic Burst PressureNo damage to catheter with dynamic
pressure.The APRO 55 Catheter met the
acceptance criteria.
Fluid LeakageCatheter must withstand pressure with
methods per ISO 10555-1 Annex C.The APRO 55 Catheter met the
acceptance criteria.
Static BurstCatheter must withstand pressures
anticipated for clinical use.The APRO 55 Catheter met the
acceptance criteria.
Tensile Strength of
Catheter Hub and ShaftCatheter hub and shaft must meet tensile
strength specification.The APRO 55 Catheter met the
acceptance criteria.
Tensile Strength of
Catheter TipCatheter tip must meet tip tensile strength
specification.The APRO 55 Catheter met the
acceptance criteria.
Delivery and Retrieval
ForceCatheter delivery and retrieval force must
be acceptable. Forces were compared to a
predicate.The APRO 55 Catheter met the
acceptance criteria.
Tip Buckling ForceCatheter tip buckling force must be
acceptable. Forces were compared to a
predicate.The APRO 55 Catheter met the
acceptance criteria.
Simulated Use including
Clot RetrievalWhen used per the Instructions for Use
with accessory devices in an anatomical
neurovascular model, the Catheter and
Aspiration Tubing must meet
functionality specifications. Clot retrieval
from various locations of the anatomical
model was performed using the subject
device system.The APRO 55 Catheter and
Alembic Aspiration Tubing met
the acceptance criteria.

B. Design Verification Testing - Animal

Substantial equivalence was established based on non-clinical performance data. Animal data were not deemed necessary.

C. Sterilization and Shelf-Life

The APRO 55 Catheter and Alembic Aspiration Tubing are sterilized using an ethylene oxide sterilization cycle that was verified to a sterility assurance level of 1 x 10° in accordance with ISO 11135. Aging studies for the APRO 55 Catheter and Alembic Aspiration Tubing have established that the subject device and packaging remain functional for the labeled expiration date. Aging studies for packaging integrity, seal strength, and device functionality were performed and met the acceptance criteria.

D. Biocompatibilitv

Biocompatibility testing has been completed for the APRO 55 Catheter in accordance with ISO 10993-1 and the device is deemed non-toxic (local or systemic), nonsensitizing, not locally irritating or otherwise harmful. Test results obtained were acceptable for the intended use as shown in Table 3. The thrombogenicity evaluation of the APRO 55 Catheter was supplemented by the prior in vivo thrombogenicity evaluation of the reference device, APRO 70 Catheter, in a good laboratory practice animal study.

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Biocompatibility studies for the Alembic Aspiration Tubing, that is unchanged from K223545, have previously established that it is biocompatible.

TestResultsConclusions
Sensitization
(Guinea Pig
Maximization)The APRO 55 Catheter did not elicit a
sensitization response.Non-sensitizing
Irritation/Intracutaneous
ReactivityThe APRO 55 Catheter demonstrated no evidence
of irritation.Non-Irritant
Cytotoxicity (MEM
Elution, L929 cells)The APRO 55 Catheter did not elicit a cytotoxic
response at 24 hours and 48 hours.Non-cytotoxic
Hemolysis – IndirectThere were no significant differences between the
test article extract and negative control article
results.Non-hemolytic
Hemolysis – DirectThere were no differences between the hemolytic
index of the test article and the negative control.Non-hemolytic
Partial Thromboplastin
Time (PTT)The average clotting time of the test article was
greater than vehicle control and negative control.Acceptable clotting
times
SC5b9 Complement
ActivationThe Sc5b9 concentration of the test article was
statistically less than the positive control and
was not statistically higher than the negative
control.Acceptable
Acute Systemic
ToxicityNo weight loss, mortality, or evidence of
systemic toxicity from the extract exposure to
the mice.Non-toxic
Material-Mediated
PyrogenicityAll individual rabbits for both the test article and
negative control showed a total rise in
temperature of