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510(k) Data Aggregation

    K Number
    K161506
    Manufacturer
    Date Cleared
    2016-09-26

    (117 days)

    Product Code
    Regulation Number
    870.5150
    Why did this record match?
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    Penumbra Aspiration Catheters and Separators: As part of the Penumbra Aspiration System, the Penumbra Aspiration Catheters and Separators are indicated for the removal of fresh, soft emboli and thrombi from vessels in the coronary and peripheral vasculature.
    Penumbra Aspiration Tubing: As part of the Penumbra Aspiration System, the Penumbra Sterile Aspiration Tubing is indicated to connect the Aspiration Catheters to the Penumbra Aspiration Pump.
    Penumbra Aspiration Pump: The Penumbra Aspiration Pump is indicated as a vacuum source for Penumbra Aspiration Systems.

    Device Description

    The Penumbra Aspiration System is indicated for the removal of fresh, soft emboli and thrombi from vessels of the coronary and peripheral vasculature. The Aspiration Catheter and Separator are available in multiple configurations. The devices are provided sterile, non-pyrogenic, and intended for single use only. Intended users for this device are physicians who have received appropriate training in interventional radiology. The Penumbra Aspiration System is designed to remove thrombus from the coronary and peripheral vasculature using continuous aspiration. The Aspiration Catheter targets aspiration from the pump directly to the thrombus. The Separator may be used to clear the lumen of the Aspiration Catheter should it become blocked with thrombus. The use of the Separator may not be necessary when using an Aspiration Catheter with an I.D. of 0.054 in or larger. The Aspiration Catheter is introduced through a guide catheter or long introducer sheath and into the coronary or peripheral vasculature and guided over a guidewire to the site of the primary occlusion. The Aspiration Catheter is used with the Penumbra Pump MAX to aspirate thrombus from an occluded vessel. As needed, the Separator may be deployed from the Aspiration Catheter to assist with thrombus removal. The Separator is advanced and retracted through the Aspiration Catheter at the proximal margin of the primary occlusion to facilitate clearing of the thrombus from the Aspiration Catheter tip. For the aspiration source, the Aspiration Catheter is used in conjunction with the Penumbra Pump MAX, which is connected using the Aspiration Tubing and the Penumbra Pump/Canister Tubing. The Separator is provided with an introducer and torque device. The Aspiration Catheter may be provided with a steam shaping mandrel, rotating hemostasis valve, and a peelable sheath. The Separator is provided with an introducer and torque device. The Aspiration Catheter and Separator are visible under fluoroscopy. The Penumbra Pump MAX is the aspiration source for the Penumbra Aspiration System. The Penumbra Pump MAX operates using AC power and is designed to be portable if needed. The Penumbra Pump MAX provides vacuum of up to 29 inHg. The pump is available in both 110Vac and 230Vac versions. The front face of the pump has a display panel with a vacuum gauge, vacuum regulator dial, and power switch. The pump connects to the canister reservoir with a tubing assembly (Penumbra Pump/Canister Tubing), which is provided as an accessory. The Penumbra Pump/Canister Tubing consists of a short tubing segment with an inline filter and connectors on each end to facilitate attachment to the pump's vacuum port. The tubing is provided pre-attached to the canister reservoir lid. The Penumbra Pump/Canister Tubing is provided non-sterile and is used outside the sterile field.

    AI/ML Overview

    The provided document is a 510(k) premarket notification for the Penumbra Aspiration System. It details the device's indications for use, its classification, and a comparison to predicate and reference devices. However, the document primarily focuses on demonstrating substantial equivalence through non-clinical (benchtop) and animal study data, largely leveraging existing data from previously cleared similar devices.

    Crucially, this document does NOT contain information about specific "acceptance criteria" or "device performance" in terms of clinical outcomes, nor does it describe a study involving human subjects or experts for establishing ground truth for AI/algorithm performance.

    Therefore, I cannot fulfill the request to describe the acceptance criteria and the study that proves the device meets the acceptance criteria, along with the specified sub-points (table of acceptance criteria/performance, sample size, experts, adjudication, MRMC study, standalone performance, type of ground truth, training set details) because this information is not present in the provided text.

    The document discusses:

    • Leveraged Non-Clinical Data (Section 1.10): This section lists benchtop tests (Friction, Visual & Dimensional, Pouch Seal Strength, Flow Rate, Tensile, Elongation, Bond Strength, Hub Air Aspiration, Torsion, Burst, Simulated Use, Particulate, Flexibility, Packaging, Corrosion). It states that "all established requirements and acceptance criteria were met," but it does not specify what those acceptance criteria were in measurable terms (e.g., "flow rate X L/min," "tensile strength Y N"). It also does not define "device performance" in the way requested (e.g., diagnostic accuracy, sensitivity, specificity).
    • Leveraged Animal Studies (Section 1.11): This section summarizes findings from design validation in GLP animal testing, noting "No vessel injury," "No abnormal gross or histology findings," and "no significant vascular response." This is performance data in an animal model, but not clinical performance in humans, nor does it relate to acceptance criteria for an AI/algorithm-driven device.

    In summary, the provided text describes the regulatory clearance process for a medical device (an aspiration system) based on substantial equivalence to existing devices, supported by benchtop testing and animal studies. It does not contain the kind of information typically found in a study proving an AI/algorithm-driven device meets specific clinical acceptance criteria, which would involve human data, expert review, and metrics like accuracy, sensitivity, or specificity.

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    K Number
    K160449
    Manufacturer
    Date Cleared
    2016-05-25

    (97 days)

    Product Code
    Regulation Number
    870.1250
    Why did this record match?
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    Penumbra Reperfusion Catheters and Separators: As part of the Penumbra System, the Reperfusion Catheters and Separators are 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.
    Penumbra Aspiration Tubing: As part of the Penumbra System, the Penumbra Sterile Aspiration Tubing is indicated to connect the Penumbra Reperfusion Catheters to the Penumbra Pump MAX.
    Penumbra Pump MAX: The Penumbra Pump MAX is indicated as a vacuum source for Penumbra Aspiration Systems.

    Device Description

    The Penumbra System is designed to remove thrombus from the neurovasculature using continuous aspiration. The Reperfusion Catheter targets aspiration from the pump directly to the thrombus. The Separator may be used to clear the lumen of the Reperfusion Catheter should it become blocked with thrombus. The use of the Separator may not be necessary when using a Reperfusion Catheter with an I.D. of 0.054in [1.37mm] or larger. The Reperfusion Catheter is introduced through a guide catheter or long femoral sheath and into the intracranial vasculature and guided over a neurovascular guidewire to the site of the primary occlusion. The Penumbra Reperfusion Catheter is used with the Penumbra Pump MAX to aspirate thrombus from an occluded vessel. As needed, a Penumbra Separator may be deployed from the Reperfusion Catheter to assist with thrombus removal. The Penumbra Separator is advanced and retracted through the Penumbra Reperfusion Catheter at the proximal margin of the primary occlusion to facilitate clearing of the thrombus from the Reperfusion Catheter tip. For the aspiration source, the Penumbra Reperfusion Catheter is used in conjunction with the Penumbra Pump MAX, which is connected using the Penumbra Aspiration Tubing and the Penumbra Pump/Canister Tubing. The Penumbra Reperfusion Catheter is provided with a steam shaping mandrel and rotating hemostasis valve, and a peelable sheath. The Penumbra Separator is provided with an introducer and torque device. The devices are visible under fluoroscopy. The Penumbra Reperfusion Catheter, Separator, and Aspiration Tubing are provided sterile, non-pyrogenic, and intended for single use only. Additionally, a pre-packaged configuration (KIT packaging) for all Penumbra System Reperfusion Catheters with Aspiration Tubing is available.

    The Penumbra Pump MAX is designed to provide aspiration for the Penumbra System. The Penumbra Pump MAX operates using AC power. The Penumbra Pump MAX provides vacuum of up to 29 inHg and is available in both 110Vac and 230Vac versions. The Penumbra Pump MAX and Pump/Canister Tubing are provided non-sterile and is used outside the sterile field.

    AI/ML Overview

    Here's a breakdown of the acceptance criteria and study information based on the provided text, focused on the KIT configuration, as that's where new testing was performed:

    1. Table of Acceptance Criteria and Reported Device Performance (KIT Configuration)

    AttributeSpecificationAcceptance CriteriaReported Performance
    Visual InspectionThese evaluations confirm that the units used in this Design Verification testing meet all inspection criteria for release of finished goods (clinically acceptable) product.Products meet all inspection criteria.Pass
    Simulated Use (Intracranial Access, Vessel Access Entry Performance & Clot Removal)Simulated use testing of the Catheter and Separator was performed with accessory devices in an anatomical model which simulated the tortuosity of the neurovasculature. Devices were delivered through the tortuous anatomical model to evaluate the effectiveness of the devices to remove clots and that the Reperfusion Catheter does not collapse under vacuum.Devices effectively remove clots and catheters do not collapse under vacuum.100% Pass
    Catheter CoatingCoating has not delaminated, peeled, or flaked after simulated use.Coating remains intact (not delaminated, peeled, or flaked).100% Pass
    Gross LeakPouch seals, pouch front, and pouch back material do not leak.No leaks in pouch seals, front, or back material.100% Pass

    2. Sample Size Used for the Test Set and Data Provenance

    The document does not explicitly state the numerical sample size for the "Design Verification testing" for the KIT configuration. It only mentions "units used in this Design Verification testing" for Visual Inspection, and implicitly for Simulated Use, Catheter Coating, and Gross Leak tests as they all report 100% Pass.

    • Sample Size: Not explicitly stated as a number, but all tested units passed.
    • Data Provenance: The tests are described as "additional testing performed for the KIT configuration packaging," suggesting these are prospective, benchtop tests conducted by Penumbra, Inc. The country of origin for the data generation would logically be the USA, given the company's location.

    3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications of Those Experts

    There is no mention of experts or clinicians being used to establish a ground truth for these non-clinical tests. The tests are focused on physical and mechanical properties and simulated use in anatomical models.

    4. Adjudication Method for the Test Set

    Not applicable, as these are non-clinical, objective tests and not based on expert review or consensus.

    5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done, If So, What Was the Effect Size of How Much Human Readers Improve with AI vs. Without AI Assistance

    Not applicable. This document describes a medical device (Penumbra System and Penumbra Pump MAX) for treating acute ischemic stroke, not an AI-based diagnostic or treatment guidance system that would involve human readers or AI assistance.

    6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) Was Done

    Not applicable. This is a medical device, not an algorithm.

    7. The Type of Ground Truth Used

    The ground truth for these non-clinical tests is based on:
    * Defined specifications and performance expectations: For Visual Inspection, Catheter Coating, and Gross Leak, the "ground truth" is adherence to predefined quality and integrity standards.
    * Simulated physiological conditions and objective performance: For Simulated Use, the "ground truth" is the effective removal of clots and prevention of catheter collapse in an anatomical model that mimics neurovasculature.

    8. The Sample Size for the Training Set

    Not applicable. This is a medical device, not a machine learning model requiring a training set.

    9. How the Ground Truth for the Training Set Was Established

    Not applicable.

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