The BASHIR™ Endovascular Catheter and BASHIR™ S-B Endovascular Catheter are mechanical thrombolysis catheters indicated for the: - Controlled and selective infusion of physician-specified fluids, including thrombolytics, into the pulmonary arteries for treatment of pulmonary embolism. - Infusion of physician-specified fluids, including thrombolytics, into the peripheral vasculature, enabling the restoration of blood flow in patients with venous thrombus.
Device Story
Mechanical thrombolysis catheters; distal infusion segment features expandable nitinol-core basket with mini-infusion catheters containing laser-drilled holes. Physician operates red handle actuator to expand/collapse basket. Device delivers physician-specified fluids (e.g., thrombolytics) via pulse spray and infusion into pulmonary arteries or peripheral vasculature. Used in clinical settings by physicians. No electrical components or capital equipment required. Output is localized fluid delivery to thrombus; facilitates clot dissolution and blood flow restoration. Benefits include minimally invasive treatment of pulmonary embolism and venous thrombus.
Clinical Evidence
Clinical evidence includes a First-in-Human study (n=9) and the pivotal RESCUE clinical trial (n=109) evaluating the BASHIR™ Endovascular Catheter for pulmonary embolism. Bench testing included 20-hour simulated use, kink radius, trackability, and infusion pressure testing. Biocompatibility testing followed ISO 10993. GLP animal study in swine model showed no adverse systemic effects or mortality. In-use study confirmed no impact on device or pharmacological fluid quality.
Technological Characteristics
Mechanical thrombolysis catheter; nitinol-core expandable infusion basket; laser-drilled infusion holes. Biocompatible materials per ISO 10993. Sterilized via ethylene oxide to SAL 10^-6. No electrical components; no capital equipment required. Dimensions: 12.50 cm (Ref 7201) or 10.0 cm (Ref 7101) infusion segment. Hydraulic fluid dispersion mechanism.
Indications for Use
Indicated for patients requiring mechanical thrombolysis and infusion of physician-specified fluids (including thrombolytics) into pulmonary arteries for pulmonary embolism treatment or into peripheral vasculature for venous thrombus blood flow restoration.
Regulatory Classification
Identification
An embolectomy catheter is a balloon-tipped catheter that is used to remove thromboemboli, i.e., blood clots which have migrated in blood vessels from one site in the vascular tree to another.
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Image /page/0/Picture/0 description: The image contains 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 acronym with the full name of the agency on the right. The FDA part of the logo is in blue, with the acronym in a square and the full name written out to the right of the square.
April 20, 2023
Thrombolex, Inc. % Diane Horwitz Consultant Eminence Clinical Research Inc. 5 Lake Como Ct. Greenville, South Carolina 29609
Re: K222095
Trade/Device Name: BASHIRTM Endovascular Catheter, Ref. No. 7201 BASHIRTM S-B Endovascular Catheter, Ref. No. 7101 Regulation Number: 21 CFR 870.5150 Regulation Name: Embolectomy catheter Regulatory Class: Class II Product Code: QEY, KRA Dated: March 17, 2023 Received: March 17, 2023
Dear Diane Horwitz:
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
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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 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 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,
Gregory W. Digitally signed by O'connell -S os:44:59 -04'00'
Gregory O'Connell Assistant Director DHT2C: Division of Coronary and Peripheral Intervention Devices OHT2: Office of Cardiovascular 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) K222095
### Device Name
BASHIR™ Endovascular Catheter, Ref. No. 7201 BASHIR™ S-B Endovascular Catheter, Ref. No. 7101
### Indications for Use (Describe)
The BASHIR™ Endovascular Catheter and BASHIR™ S-B Endovascular Catheter are mechanical thrombolysis catheters indicated for the:
- · Controlled and selective infusion of physician-specified fluids, including thrombolytics, into the pulmonary arteries for treatment of pulmonary embolism.
- · Infusion of physician-specified fluids, including thrombolytics, into the peripheral vasculature, enabling the restoration of blood flow in patients with venous thrombus.
| 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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Image /page/3/Picture/1 description: The image shows the logo for THROMBOLEX. The logo is in red and consists of the word "THROMBOLEX" in all capital letters, with a stylized "X" at the end. Below the logo is the text "INNOVATIVE ENDOVASCULAR CATHETERS" in a smaller, sans-serif font. The logo appears to be for a medical device company specializing in catheters.
## 510(k) SUMMARY
#### GENERAL INFORMATION 1.
#### 1.1 Submitter and 510(k) Owner
Thrombolex, Inc. 75 Britain Dr. New Britain PA 18901
#### 1.2 Official Correspondent
Diane Horwitz, Ph.D. 5 Lake Como Ct. Greenville, SC 29609 Telephone: 703.307.2921 Email: dhorwitz(@ecr-inc.com
#### 1.3 Date of Preparation
April 19, 2023
#### NAME OF THE DEVICE 2.
#### 2.1.1 Trade/Proprietary Name
BASHIR™ Endovascular Catheter, Ref. No. 7201 BASHIR™ S-B Endovascular Catheter, Ref. No. 7101
#### Common/Usual Name 2.1.2
Continuous Flush Catheter
#### 2.1.3 Classification Information
Classification Name: Mechanical Thrombolysis Catheter Classification Regulation: 21 CFR 870.5150 Class: 2 Product Code: QEY, KRA Panel: Cardiovascular
3. PREDICATE DEVICE
Ekosonic Endovascular Device, Boston Scientific, K211080
Reference Devices: BASHIR™ Endovascular Catheter, K211061 BASHIR™ S-B Endovascular Catheter, K192598
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#### 4. DESCRIPTION OF THE DEVICE
The BASHIR™ Endovascular Catheter is a device intended for mechanical thrombolysis via expanding the distal infusion basket, allowing localized infusion of physician-specified fluids, including thrombolytics, into the peripheral or pulmonary vasculature. The distal infusion segment of the device is 12.50 cm (4.94 in.) long and consists of an expandable basket with a nitinol core surrounded by mini-infusion catheters, each with multiple infusion holes (hereafter referred to as the "infusion basket"). The infusion basket is expanded and closed using the red actuator located on the handle at the proximal end of the device. The BASHIR™ S-B Endovascular Catheter is a second model intended for smaller anatomies, with an infusion basket that is 10.0 cm (3.94 in.). The devices are otherwise the same.
The physician-specified fluid is then delivered via the basket infusion line located on the handle. Pulse sprays are followed by infusion through laser-drilled holes in the infusion limbs of the basket after placement in the peripheral vasculature or in the pulmonary artery. After the completion of fluid delivery, the infusion limbs are collapsed to a straight position and then the catheter is retracted into the sheath and removed from the patient.
The BASHIR™ Endovascular Catheter and BASHIR™ S-B Endovascular catheters are composed of common biocompatible materials used in vascular catheters are mechanical and contain no electrical components and require no capital equipment.
# 5. INTENDED USE / INDICATION FOR USE
The BASHIR™ Endovascular Catheter and BASHIR™ S-B Endovascular Catheter are mechanical thrombolysis catheters indicated for the:
- . Controlled and selective infusion of physician-specified fluids, including thrombolytics, into the pulmonary arteries for treatment of pulmonary embolism.
- Infusion of physician-specified fluids, including thrombolytics, into the peripheral . vasculature, enabling the restoration of blood flow in patients with venous thrombus.
#### INTENDED USE COMPARED TO THE PREDICATE 6.
The intended use of the BASHIR™ and the BASHIR™ S-B Endovascular Catheters is the same as that of the predicate device. Ekosonic Endovascular Device (K211080): They are mechanical thrombolysis catheters intended to infuse physician-specified fluids into a thrombus in either the peripheral or pulmonary circulation and for treatment of pulmonary embolism.
The indication for use for the subject devices has been expanded to include use in the pulmonary arteries to treat pulmonary embolism. The use of the BASHIR™ and BASHIR™ S-B Endovascular Catheters for treatment of pulmonary embolism were evaluated in the First-in-Human study and the pivotal RESCUE Clinical Trial, and the results support a substantially equivalent safety and effectiveness profile to the predicate device.
#### TECHNOLOGICAL CHARACTERISTICS COMPARED TO THE PREDICATE 7.
The BASHIR™ and the BASHIR™ S-B Endovascular Catheters have technological similarities to the predicate device (i.e., general catheter dimensions, catheter placement, compatibility with fluids, biocompatible nature of materials, radiopacity, and hydraulic mechanism for fluid dispersion). The subject and predicate devices differ in that the predicate device is a software-controlled device, whereas the subject devices are mechanical in nature and do not require capital equipment. The two reference devices (BASHIR™ and the BASHIR™ S-B Endovascular Catheters, K211061 and K 192598) are technologically identical to the subject devices.
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#### 8. PERFORMANCE TESTING
This 510(k) provides clinical performance data to support the expanded indication for use for treatment of pulmonary embolism and to establish the substantial equivalence of the BASHIR™ and the BASHIR™ S-B Endovascular Catheters to the predicate device.
Biocompatibility: Biocompatibility evaluation has been performed to show the finished, sterilized device is biocompatible and suitable for its intended use according to ISO 10993 and FDA Draft Guidance "Use of International Standard ISO 10993, Biological Evaluation of Medical Devices Part 1: Evaluation and Testing within a Risk Management Process." Testing included cytotoxicity, sensitization, intracutaneous toxicity, acute systemic toxicity, hemolysis, complement, and pyrogenicity testing. All tests passed.
Sterility: Sterilization validation studies were conducted with ethylene oxide sterilization to a Sterilization Assurance Level (SAL) of 10° CFU according to international standards. Bacteriostasis and fungistasis and ethylene oxide residual testing passed. All sterilization process parameters met the established protocols and the requirements were satisfied.
Performance Testing - Bench: Thrombolex conducted design validation testing and human factors testing and showed that the subject devices meet product requirements and design specifications. Simulated use studies over 20 hours confirmed functionality of the subject device over 20 hours. Performance testing included an evaluation of: Kink radius, trackability, advancement force, slider actuator force, catheter retraction, radial force, delivery flow rate, infusion pressure through various lumens and at various flow rates, guidewire compatibility, dimensional verification, compliance of injection hubs, air leakage, fluid leakage, stress cracking, resistance to separation, torque strength, corrosion resistance, joint tensile strength and particulate generation.
Thrombolex performed an In-Use Study to evaluate the cumulative impact of in-use materials and conditions on the product quality attributes of a representative drug, before vs. after the fluid was infused through the subject device at a rate and concentration representative of those used in clinical trials. Testing demonstrated no impact on the device or the pharmacological fluid.
Performance Testing - Animal: Thrombolex performed a GLP animal study of deployment of the BEC in the peripheral vasculature and the pulmonary artery in a swine model. The BASHIR™ Endovascular Catheter had no adverse effects systemically, on gross or histopathology evaluation, and resulted in no animal mortality.
Performance Testing - Clinical: A First in Human (FIH) with 9 patients and pivotal study with 109 patients were conducted for the BASHIR™ Endovascular Catheter. Please refer to published literature for appropriate use of the BASHIR™ Endovascular Catheter in pulmonary endovascular cases.
#### CONCLUSIONS 9.
The information presented in this 510(k) submission demonstrates that the BASHIR™ and the BASHIR™ S-B Endovascular Catheters are substantially equivalent to the predicate device and supports the use of these devices in the pulmonary artery for treatment of pulmonary embolism and in the peripheral circulation for the restoration of blood flow in patients with venous thrombus.
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
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.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
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.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
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.
3. Judging fuzzy relevance
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.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
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.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
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.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
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.