The ZOOM Reperfusion Catheters, with the ZOOM Aspiration Tubing and ZOOM Aspiration Pump (or equivalent vacuum pump), are indicated 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 ZOOM Aspiration Tubing is intended to connect the ZOOM Reperfusion Catheter of the ZOOM Aspiration Pump and to allow the user to control the fluid flow.
Device Story
ZOOM Reperfusion Catheters are single-lumen, braid/coil-reinforced catheters designed for thrombus removal from neurovasculature. Used with ZOOM Aspiration Tubing and a vacuum pump (e.g., ZOOM Aspiration Pump). Operated by physicians in clinical settings (e.g., neurointerventional suites). Catheter features variable stiffness, hydrophilic coating for tracking, and beveled distal tip for atraumatic navigation. Radiopaque marker allows fluoroscopic visualization. Connected to vacuum source via aspiration tubing to apply suction for clot aspiration. Output is mechanical removal of thrombus, restoring blood flow. Benefits include revascularization in acute ischemic stroke patients.
Clinical Evidence
Bench testing only. No clinical data presented. Testing included visual inspection, dimensional verification, bond strength, flow rate (positive/vacuum), leakage (positive/negative pressure), dynamic burst pressure, tip flexibility, and corrosion resistance per ISO 10555-1.
Technological Characteristics
Single-lumen catheter; braid/coil-reinforced; medical-grade polymers/metals; hydrophilic coating; beveled distal tip; radiopaque marker. Sterilization: Ethylene Oxide (EO), SAL 10^-6. ISO 10555-1 compliant. Standalone device used with external vacuum pump.
Indications for Use
Indicated for patients with acute ischemic stroke secondary to intracranial large vessel occlusive disease (internal carotid, M1/M2 middle cerebral, basilar, and vertebral arteries) within 8 hours of symptom onset. Candidates include patients ineligible for or failing IV t-PA therapy.
Regulatory Classification
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.
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Image /page/0/Picture/0 description: The image shows the logos of the Department of Health & Human Services and the Food and Drug Administration (FDA). The Department of Health & Human Services logo is on the left, and the FDA logo is on the right. The FDA logo is a blue square with the letters "FDA" in white, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue.
April 23, 2021
Imperative Care, Inc. Kristin Ellis Regulatory Affairs Manager 1359 Dell Avenue Campbell, California 95008
#### Re: K210996
Trade/Device Name: ZOOM (71, 55, 45, 35) Reperfusion Catheters; ZOOM Aspiration Tubing Regulation Number: 21 CFR 870.1250 Regulation Name: Percutaneous Catheter Regulatory Class: Class II Product Code: NRY Dated: April 1, 2021 Received: April 2, 2021
### Dear Kristin Ellis:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies.combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807): labeling (21 CFR Part
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801): medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device (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, 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
Enclosure
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## Indications for Use
510(k) Number (if known) K210996
Device Name
ZOOM (71, 55, 45, 35) Reperfusion Catheters; ZOOM Aspiration Tubing
Indications for Use (Describe)
The ZOOM Reperfusion Catheters, with the ZOOM Aspiration Tubing and ZOOM Aspiration Pump (or equivalent vacuum pump), are indicated 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 ZOOM Aspiration Tubing is intended to connect the ZOOM Reperfusion Catheter of the ZOOM Aspiration Pump and to allow the user to control the fluid flow.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|--|
|-------------------------------------------------|--|
X Prescription Use (Part 21 CFR 801 Subpart D)
| Over-The-Counter Use (21 CFR 801 Subpart C)
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## 510(k) Summary
#### A. Submitter Information
Submitter's Name: Address:
Contact Person: Telephone: Email: Date of Preparation: 1359 Dell Avenue Campbell, CA 95008 Kristin Ellis 408-857-0934 kellis@imperativecare.com April 1, 2021
Imperative Care, Inc.
#### B. Subject Device
Proprietary Name:
Common/Usual Name: Classification Name: Product Code: Regulation:
#### ZOOM (71, 55, 45, 35) Reperfusion Catheters; ZOOM Aspiration Tubing Catheter, Thrombus Retriever Catheter, Percutaneous NRY 21 CFR 870.1250
#### C. Predicate Device
Proprietary Name:
Common/Usual Name: Classification Name: Product Code: Regulation: Manufacturer: 510(k) #:
ZOOM (71, 55, 45, 35) Reperfusion Catheters; ZOOM Aspiration Tubing Catheter, Thrombus Retriever Catheter, Percutaneous NRY 21 CFR 870.1250 Imperative Care Inc. K202182
### D. Device Description:
The ZOOM™ Reperfusion Catheter is a single lumen, braid and coil reinforced, variable stiffness catheter that facilitates removal of thrombus/clot from the neurovasculature when connected to a vacuum source, such as the ZOOM Aspiration Pump, using the ZOOM Aspiration Tubing.
The ZOOM Reperfusion Catheter is offered in various working lengths and nominal inner diameters (ID) and outer diameters (OD) as shown in Table 1.
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| Product Name | Model<br>Number | Distal<br>Diameter | | Proximal<br>Diameter | | Nominal Usable<br>Catheter<br>Length | Hydrophilic<br>Coating<br>Length |
|--------------|-----------------|--------------------|--------|----------------------|--------|--------------------------------------|----------------------------------|
| ZOOM 71 | ICRC071137 | 0.071" | 0.083" | 0.071" | 0.083" | 137 cm | 35cm |
| ZOOM 55 | ICRC055137 | 0.055" | 0.069" | 0.067" | 0.080" | 137 cm | 35cm |
| ZOOM 45 | ICRC045144 | 0.045" | 0.060" | 0.064" | 0.080" | 144 cm | 65cm |
| ZOOM 35 | ICRC035158 | 0.035" | 0.051" | 0.047" | 0.061" | 160 cm | 90cm |
#### Table 1: ZOOM Reperfusion Catheter Sizes
The ZOOM Reperfusion Catheter is comprised of a hollow cylindrical tube which is bonded to a standard luer fitting. The wall of the tube is constructed using a combination of metal coils/braids and medical grade polymers.
The distal section of the ZOOM Reperfusion Catheter has a hydrophilic coating to enhance tracking through the vasculature. The beveled distal tip allows for atraumatic tracking past vessel branches during insertion. A radiopaque marker provides the user with visual confirmation of the distal tip location under fluoroscopy.
The ZOOM Reperfusion Catheter is packaged with an accessory Rotating Hemostasis Valve (RHV). The RHV is designed to be attached to the proximal luer of the catheter and helps the user maintain hemostasis.
The ZOOM Aspiration Tubing is offered in one model with the features indicated in Table 2.
### Table 2: ZOOM Aspiration Tubing Model
| Product Name | Model Number | Tubing ID | Tubing Length |
|------------------------|--------------|----------------|---------------|
| ZOOM Aspiration Tubing | TAT102B | 0.110" Minimum | 104" |
The ZOOM Aspiration Tubing is comprised of a hollow cylindrical tube which is bonded to a standard luer fitting that connects to the ZOOM Reperfusion Catheter and a slip fit connector that connects to the canister on the aspiration pump. The ZOOM Aspiration Tubing is made of common medical grade polymers.
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In addition to the accessories discussed above, the adjunctive devices and supplies listed below are intended to be used with the ZOOM Reperfusion Catheter and Aspiration Tubing.
- Guidewires ●
- Support/Diagnostic Catheters .
- Introducer Sheaths ●
- . Aspiration Pump*
- Capable of achieving pressure between -20inHg to max vacuum o
- Airflow rating of 0 23 LPM O
- 0 IEC 60601-1 Compliant
Imperative Care offers the ZOOM Aspiration Pump which meets the indicated criteria.
#### E. Indications for Use:
The ZOOM Reperfusion Catheters, with the ZOOM Aspiration Tubing and ZOOM Aspiration Pump (or equivalent vacuum pump), are indicated 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 ZOOM Aspiration Tubing is intended to connect the ZOOM Reperfusion Catheter to the ZOOM Canister of the ZOOM Aspiration Pump and to allow the user to control the fluid flow.
#### F. Predicate Comparison:
The predicate device for the ZOOM Reperfusion Catheter and Aspiration Tubing in this Special 510(k) is the prior generation of ZOOM Reperfusion Catheter and Aspiration Tubing cleared under 510(k) K202182 with the same device names. Table 3 presented below provides a comparison of the similarities and differences between the subject and predicate ZOOM Reperfusion Catheter and Aspiration Tubing.
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The comparison between the subject ZOOM Reperfusion Catheters and predicate ZOOM Reperfusion Catheters demonstrates that the subject ZOOM Reperfusion Catheters is substantially equivalent to the predicate ZOOM Reperfusion Catheters and that there are no new safety or effectiveness concerns. This conclusion is based on all devices sharing the same intended use, basic technological characteristics, and performance characteristics.
| Device Attribute | ZOOM Reperfusion Catheters<br>(Predicate Device – K202182) | ZOOM Reperfusion Catheters<br>(Subject Device) |
|------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------|
| FDA Product<br>Classification | Class II, NRY, 21 CFR 870.1250 | Same |
| Intended Use | Revascularization of patients with acute<br>ischemic stroke. | Same |
| Indications for Use | See Section E. | Same |
| Condition<br>Supplied | Sterile and Single Use | Same |
| Sterilization<br>Method | Ethylene Oxide (EO), SAL 10-6 | Same |
| Nominal Distal<br>Inner Diameter | 0.035" - 0.071" | Same |
| Max Distal<br>Outer Diameter | 0.053" - 0.085" | Same |
| Nominal Proximal<br>Inner Diameter | 0.047" – 0.071" | Same |
| Max Proximal<br>Outer Diameter | 0.062" - 0.085" | Same |
| Effective Length | 137 - 158cm | 137 - 160cm |
| Tip Design | Beveled edge, soft, flexible, and<br>atraumatic | Same |
| Tip Length | 0.5 - 0.8cm | Same |
| Coating | Hydrophilic coating | Same |
| Materials | Commonly used medical grade plastics<br>& metals with hydrophilic coating. | Same |
| Device Attribute | ZOOM Reperfusion Catheters<br>(Predicate Device – K202182) | ZOOM Reperfusion Catheters<br>(Subject Device) |
| Packaged<br>Accessories | Rotating Hemostasis Valve (RHV) | Same |
| Packaging<br>Configuration | The catheter is placed in a protective<br>polyethylene tube and then mounted,<br>along with the accessories, onto a<br>polyethylene packaging card.<br><br>The packaging card is inserted into a<br>Tyvek® pouch which is then sealed.<br><br>The sealed pouch and IFU are placed in<br>a carton box. | Same |
| Aspiration Pump | ZOOM Aspiration Pump | Same |
| Device Attribute | ZOOM Aspiration Tubing<br>(Predicate Device – K202182) | ZOOM Aspiration Tubing<br>(Subject Device) |
| Indications for Use | See Section E | Same |
| Condition<br>Supplied | Sterile and Single Use | Same |
| Sterilization<br>Method | Ethylene Oxide (EO), SAL 10-6 | Same |
| Tubing ID | 0.110" Minimum | Same |
| Tubing Length | 104" | Same |
| Flow Control<br>Mechanism | Flow Control Clamp | Same |
### Table 3: Subject and Predicate Device Comparison
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## G. Performance Data Supporting Substantial Equivalence:
Bench testing was completed to evaluate the differences between the subject ZOOM Reperfusion Catheters and predicate ZOOM Reperfusion Catheters. Performance specifications and test methods were based primarily on catheter performance standard ISO
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10555-1 and a summary of the evaluated performance specifications is presented in Table 4 below.
The test results were reviewed and found to demonstrate that the differences between the subject ZOOM Reperfusion Catheters and predicate ZOOM Reperfusion Catheters do not significantly impact any performance parameters that would negatively affect the safety or effectiveness of the subject ZOOM Reperfusion Catheters and Aspiration Tubing.
| Test Attribute | Specification |
|---------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Visual | Free of kinks, breaks, separation or particulate (greater than $0.25mm^2$ ). No exposed metal. |
| Dimensional<br>(Effective Length) | All defined catheter dimensions are within the specified<br>tolerances. |
| Catheter Bond Strength | The catheter shall have sufficient bond strengths to remain intact<br>throughout a procedure. |
| Flowrate - Positive<br>(Forward) Pressure | The catheter lumen shall allow for a minimum flowrate<br>comparable to competitive products. |
| Flowrate – Vacuum<br>Pressure | The flowrate under a vacuum shall be similar to or greater than<br>competitive devices. |
| Freedom from Leakage<br>– Positive Pressure | No liquid leakage from the hub or catheter shaft at 46psi for 30<br>seconds |
| Freedom from Leakage<br>– Negative Pressure | No air leakage into a 20cc syringe when vacuum pulled for 15<br>seconds. |
| Dynamic Burst Pressure | Catheter does not burst under pressures that could be seen when<br>performing contrast injections with a standard 10cc syringe. |
| Tip Flexibility | The flexibility of the catheter tip shall be comparable to<br>competitive products and allow for easily tracking the device to<br>the desired target anatomy. |
| Corrosion Resistance | No visible corrosion present on devices after saline immersion<br>followed by 30 minutes in boiling water followed by 48 hours in<br>37°C water bath. |
Table 4: Tests and Performance Specifications for ZOOM Reperfusion Catheter
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There were no changes to the Zoom Aspiration Tubing or Zoom Aspiration Pump and no changes to the subject and predicate ZOOM Reperfusion Catheters that would impact compatibility with these components. Therefore, no additional performance testing was required for the Zoom Aspiration Tubing or Zoom Aspiration Pump.
#### H. Biocompatibility Testing:
There are no changes to materials compared to the predicate device. Therefore, the original testing on the predicate devices applies to the subject devices and additional biocompatibility testing was not required.
# I. Sterilization:
The ZOOM Reperfusion Catheters and Aspiration Tubing are both sterilized using validated EO processes with a sterility assurance level of 1x106 The sterilization processes were validated per the overkill method described in recognized consensus standard ISO 11135, "Sterilization Of Health-Care Products - Ethylene Oxide - Requirements For The Development, Validation And Routine Control Of A Sterilization Process For Medical Devices." There were no changes to the ZOOM Reperfusion Catheters that would impact the validated EO process.
### J. Shelf Life and Packaging:
Accelerated aging testing based on ASTM F1980 was previously conducted to verify packaged device performance. A minimum shelf life was established based on this testing and is indicated by the expiration date provided on the product labeling. There were no changes to packaging compared to the predicate ZOOM Reperfusion Catheters. In addition, there were no changes to the ZOOM Reperfusion Catheters that would impact the packaging validation.
#### K. Conclusions:
Where differences were identified between the subject ZOOM Reperfusion Catheters and predicate ZOOM Reperfusion Catheters, a risk assessment was completed to determine if the difference would result in new safety or effectiveness concerns. As appropriate, previous bench and laboratory testing was evaluated for applicability and either the
{10}------------------------------------------------
rationale for no impact was documented or verification and validation was repeated as required. As appropriate, bench and laboratory testing were conducted to support this assessment.
Based on the results of the risk assessments and associated bench and laboratory testing, the subject ZOOM Reperfusion Catheters and predicate ZOOM Reperfusion Catheters are substantially equivalent and there are no new safety or effectiveness concerns. The subject ZOOM Reperfusion Catheters and predicate ZOOM Reperfusion Catheters share the same intended use, basic technological characteristics, and equivalent performance characteristics.
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1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
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Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
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Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
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Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
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Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
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Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
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Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.