KardiFlex PTCA Balloon Dilatation Catheter is indicated for: -balloon dilatation of the stenotic portion of a coronary artery or bypass graft stenosis in patients evidencing coronary ischemia for the purpose of improving myocardial perfusion. -balloon dilatation of a coronary artery occlusion for the treatment of acute myocardial infarction.
Device Story
Rapid exchange PTCA balloon dilatation catheter; used for balloon dilatation of stenotic coronary arteries or bypass grafts; compatible with 0.014" guidewires; operated by physicians in hospital settings; device consists of hub, hypotube, distal shaft, and semi-compliant balloon; balloon inflated via contrast media injection; radiopaque platinum markers aid positioning; hydrophilic coating on distal section; device improves myocardial perfusion by dilating stenotic vessels; single-use, sterile, non-pyrogenic.
Clinical Evidence
Bench testing only. No clinical data. Testing included biocompatibility (ISO 10993), dimensional verification, balloon rated burst pressure, fatigue, compliance, inflation/deflation time, bond strength, tip pull, flexibility/kink, torque, coating integrity, particulate evaluation, and sterilization validation.
Indicated for patients with coronary ischemia or acute myocardial infarction requiring balloon dilatation of stenotic coronary arteries or bypass grafts.
Regulatory Classification
Identification
Standard PTCA Catheter: A PTCA catheter is a device that operates on the principle of hydraulic pressurization applied through an inflatable balloon attached to the distal end. A PTCA balloon catheter has a single or double lumen shaft. The catheter features a balloon of appropriate compliance for the clinical application, constructed from a polymer. The balloon is designed to uniformly expand to a specified diameter and length at a specific pressure as labeled, with well characterized rates of inflation and deflation and a defined burst pressure. The device generally features a type of radiographic marker to facilitate fluoroscopic visualization of the balloon during use. A PTCA catheter is intended for balloon dilatation of a hemodynamically significant coronary artery or bypass graft stenosis in patients evidencing coronary ischemia for the purpose of improving myocardial perfusion. A PTCA catheter may also be intended for the treatment of acute myocardial infarction; treatment of in-stent restenosis (ISR) and/or post-deployment stent expansion. Cutting/scoring PTCA Catheter: A cutting/scoring PTCA catheter is a balloon-tipped catheter with cutting/scoring elements attached, which is used in those circumstances where a high pressure balloon resistant lesion is encountered. A cutting/scoring PTCA catheter is intended for the treatment of hemodynamically significant coronary artery stenosis for the purpose of improving myocardial perfusion. A cutting/scoring PTCA catheter may also be indicated for use in complex type C lesions or for the treatment of in-stent restenosis.
Special Controls
*Classification.* Class II (special controls). The special control for this device is “Class II Special Controls Guidance Document for Certain Percutaneous Transluminal Coronary Angioplasty (PTCA) Catheters.” See § 870.1(e) for the availability of this guidance document.(b)
*Cutting/scoring PTCA Catheter* —(1)*Identification.* A cutting/scoring PTCA catheter is a balloon-tipped catheter with cutting/scoring elements attached, which is used in those circumstances where a high pressure balloon resistant lesion is encountered. A cutting/scoring PTCA catheter is intended for the treatment of hemodynamically significant coronary artery stenosis for the purpose of improving myocardial perfusion. A cutting/scoring PTCA catheter may also be indicated for use in complex type C lesions or for the treatment of in-stent restenosis.(2)
*Classification.* Class III (premarket approval). As of May 28, 1976, an approval under section 515 of the act is required before this device may be commercially distributed. See § 870.3.
Predicate Devices
Sapphire II Pro Coronary Dilatation Catheter (K163114)
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April 29, 2021
Medcaptain Life Science Co., Ltd. David Xia Official Correspondent 601, Building C, Jinweiyuan Industrial Park, Pingshan District Shenzhen, Guangdong 518118 China
Re: K202619
Trade/Device Name: KardiFlex™ PTCA Balloon Dilatation Catheter Regulation Number: 21 CFR 870.5100 Regulation Name: Percutaneous Transluminal Coronary Angioplasty (PTCA) Catheter Regulatory Class: Class II Product Code: LOX Dated: March 30, 2021 Received: April 1, 2021
Dear David Xia:
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 mav, 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
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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 (OS) 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 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,
Image /page/1/Picture/6 description: The image shows a digital signature. The signature is for Gregory W. O'connell. The date of the signature is 2021.04.29, and the time is 10:10:13 -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) K202619
Device Name KardiFlex PTCA Balloon Dilatation Catheter
Indications for Use (Describe)
KardiFlex PTCA Balloon Dilatation Catheter is indicated for:
-balloon dilatation of the stenotic portion of a coronary artery or bypass graft stenosis in patients evidencing coronary ischemia for the purpose of improving myocardial perfusion.
-balloon dilatation of a coronary artery occlusion for the treatment of acute myocardial infarction.
Type of Use (Select one or both, as applicable)
| <div> <span> <span style="text-decoration: overline;">X</span> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> | <div> <span> ☐ Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
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MEDCAPTAIN LIFE SCIENCE CO., LTD. 601Building C, Jinweiyuan Industrial Park, Pingshan District, Shenzhen, Guangdong, CN 518118. Tel.: +86-755-28380626 Email: disposable@medcaptain.com Website: www.medcaptain.com Fax.: +86-755-84517910
# 510(k) Summary
# KardiFlex™ PTCA Balloon Dilatation Catheter 21 CFR §870.5100(a) Date prepared: April 29, 2021
This 510(k) Summary is submitted in accordance with 21 CFR 807.92(c).
# I. Submitter/510(k) Holder
| Submission: | Traditional 510(k) Premarket Notification |
|-------------|-------------------------------------------------------|
| Submitter: | Medcaptain Life Science Co., Ltd |
| Address: | 601, Building C, Jinweiyuan Industrial Park, Pingshan |
| | District, Shenzhen, Guangdong, CN 518118. |
| Contact: | David Xia |
| Telephone: | +86-755-28380626 |
| Telefax: | +86-755-84517910 |
| Email: | david.xia@medcaptain.com |
## II. Device information
| Device Trade Name: | KardiFlex™ PTCA Balloon Dilatation Catheter |
|----------------------------|-------------------------------------------------------------------|
| Device Common Name: | Percutaneous Transluminal Coronary Angioplasty<br>(PTCA) Catheter |
| Classification Name: | Catheter, transluminal coronary angioplasty, percutaneous |
| Classification Regulation: | 21 CFR 870.5100(a) |
| Product Code: | LOX |
| Device Class: | Class II |
| Classification Panel: | Cardiovascular |
| 510(k) Number: | K202619 |
# III. Predicate Device
The KardiFlex™ PTCA Balloon Dilatation Catheter is substantially equivalent to the following device:
Predicate Device: Sapphire II Pro Coronary Dilatation Catheter (K163114, OrbusNeich Medical, Inc.) cleared on May 1, 2017.
The following reference devices are used in this submission: Reference Device 1: Sapphire Coronary Dilatation Catheter (K103657, OrbusNeich
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MEDCAPTAIN LIFE SCIENCE CO., LTD. 601Building C, Jinweiyuan Industrial Park, Pingshan District, Shenzhen, Guangdong, CN 518118. Tel.: +86-755-28380626 Email: disposable@medcaptain.com Fax.: +86-755-84517910 Website: www.medcaptain.com
Medical, Inc.) cleared on August 9, 2011.
Reference Device 2: Sapphire II PRO Balloon Dilatation Catheter (K180921, OrbusNeich Medical Trading, Inc.) cleared on June 28, 2018.
Reference Device 3: Selethru PTCA Balloon Dilatation Catheter (K182699, Kossel Medtech (Suzhou) Co., Ltd.) cleared on November 26, 2018.
# IV. Device Description
The KardiFlex™ PTCA Balloon Dilatation Catheter is designed to allow rapid exchange of the catheter using a standard length of 0.014" guide wire. Balloon diameters range from 1.5mm to 4.0mm and lengths from 6mm to 30mm. The balloon material is made of compliant material and balloons have a rated burst pressure of 16 atmospheres. The compliant material allows high pressure dilatation while maintaining precise control of the balloon diameter and length.
The KardiFlex™ PTCA Balloon Dilatation Catheter is a sterile, single use and non-pyrogenic device. The balloon has one (for Ø1.5mm) or two (for Ø2.0-4.0mm) radiopaque platinum marker(s) to aid in positioning the balloon in the stenosis and is designed to provide an expandable segment of known diameter and length of a specific pressure. The dilatation catheter is coated with hydrophilic coating, which is activated when wet. The proximal shaft of the catheter is composed of a female luer connector (hub) bonded to a PTFE coated stainless steel tube (hypotube).
The KardiFlex "10 PTCA Balloon Dilatation Catheter consists of 10 parts: hub, strain relief, hypotube, distal outer body, inner body, balloon, radiopaque platinum marker band, tip, balloon sheath and stylet.
## V. Indications for Use
KardiFlex™ PTCA Balloon Dilatation Catheter is indicated for:
· balloon dilatation of the stenotic portion of a coronary artery or bypass graft stenosis in patients evidencing coronary ischemia for the purpose of improving myocardial perfusion.
· balloon dilatation of a coronary artery occlusion for the treatment of acute myocardial infarction.
## VI. Comparison to Predicate Device
The subject device, KardiFlex™ PTCA Balloon Dilatation Catheter, and the predicate device, Sapphire II Pro Coronary Dilatation Catheter , are substantially equivalent in that these devices, at a high level, have the same technological characteristics: intended use, indications for use, operation principle and design (such as rapid exchange catheter design, hydrophilic coating applied in the distal section, semi-compliant balloon, 0.014inch guidewire compatibility, EO sterilization
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MEDCAPTAIN LIFE SCIENCE CO., LTD. 601Building C, Jinweiyuan Industrial Park, Pingshan District, Shenzhen, Guangdong, CN 518118. Tel.: +86-755-28380626 Email: disposable@medcaptain.com Fax.: +86-755-84517910 Website: www.medcaptain.com
and single use), prescription use, target user, use environment, balloon diameter, etc.
The differences between the subject and the predicate devices include balloon length range, working length, rated burst pressure 16 atm (vs. 14atm.), etc., do not raise new or different questions for regarding safety or effectiveness. Testing requirements for the subject device are based on upon the Class II Special Controls Guidance Document for Certain Percutaneous Transluminal Coronary Angioplasty (PTCA) Catheters (FDA; September 8, 2010).
Similarities and differences in technologies characteristics are captured in the substantial equivalence comparison of the subject device, KardiFlex™ PTCA Balloon Dilatation Catheter, and the predicate device, Sapphire II Pro Coronary Dilatation Catheter, which are provided in Table 1.
## Table 1: Substantial Equivalence
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601Building C, Jinweiyuan Industrial Park, Pingshan District,
Shenzhen, Guangdong, CN 518118.
Tel.: +86-755-28380626 Fax.: +86-755-84517910 Email: disposable@medcaptain.com
Website: www.medcaptain.com
| Description | Sapphire II Pro Coronary<br>Dilatation Catheter<br>(Predicate Device) | Sapphire Coronary<br>Dilatation Catheter<br>(Reference Device 1) | Sapphire II PRO<br>Balloon Dilatation<br>Catheter<br>(Reference Device 2) | Selethru PTCA Balloon<br>Dilatation Catheter<br>(Reference Device 3) | KardiFlexTM PTCA<br>Balloon Dilatation<br>Catheter<br>(Subject device) | Comparison to<br>predicate/reference<br>device |
|-----------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------|
| 510(k) Number | K163114 | K103657 | K180921 | K182699 | K202619 | N/A |
| Regulation Number | 21 CFR 870.5100(a) | 21 CFR 870.5100(a) | 21 CFR 870.5100(a) | 21 CFR 870.5100(a) | 21 CFR 870.5100(a) | Identical |
| Classification Name | Catheter, transluminal coronary<br>angioplasty, percutaneous | Catheter, transluminal<br>coronary angioplasty,<br>percutaneous | Catheter, transluminal<br>coronary angioplasty,<br>percutaneous | Catheter, transluminal<br>coronary angioplasty,<br>percutaneous | Catheter, transluminal<br>coronary angioplasty,<br>percutaneous | Identical |
| Product Code | LOX | LOX | LOX(primary)<br>LIT(secondary) | LOX | LOX | Identical to predicate<br>device |
| Device Class | Class II | Class II | Class II | Class II | Class II | Identical |
| Intended Use | Sapphire II Pro Coronary<br>Dilatation Catheter is intended<br>for use in percutaneous<br>transluminal coronary<br>angioplasty (PTCA) to treat<br>patients with coronary disease. | Sapphire Coronary<br>Dilatation Catheter is<br>intended for use in<br>percutaneous transluminal<br>coronary angioplasty<br>(PTCA) to treat patients<br>with coronary disease. | Sappgire II Pro Balloon<br>Dilatation Catheter is<br>intended for use in<br>percutaneous<br>transluminal coronary<br>angioplasty (PTCA) to<br>treat patients with<br>coronary disease. | The Selethru PTCA<br>Balloon Dilatation<br>Catheter is indicated for<br>balloon dilatation of the<br>stenotic portion of a<br>coronary artery or<br>bypass graft stenosis for<br>the purpose of<br>improving myocardial<br>perfusion. | KardiFlexTM PTCA<br>Balloon Dilatation<br>Catheter is intended<br>for use in<br>percutaneous<br>transluminal coronary<br>angioplasty (PTCA) to<br>treat patients with<br>coronary disease. | Identical to predicate<br>device |
| Indications for use | The Sapphire II PRO coronary<br>dilatation catheter is indicated<br>for: | The Sapphire coronary<br>dilatation catheter is<br>indicated for: | The Sapphire® II PRO<br>balloon dilatation catheter | The Selethru PTCA<br>Balloon Dilatation | KardiFlexTM PTCA<br>Balloon Dilatation | Identical to predicate<br>device |
| | • balloon dilatation of the<br>stenotic portion of a coronary<br>artery or bypass graft stenosis<br>in patients evidencing<br>coronary ischemia for the<br>purpose of improving<br>myocardial perfusion.<br>• balloon dilatation of a<br>coronary artery occlusion for<br>the treatment of acute<br>myocardial infarction. | • balloon dilatation of the<br>stenotic portion of a<br>coronary artery or bypass<br>graft stenosis in patients<br>evidencing coronary<br>ischemia for the purpose<br>of improving myocardial<br>perfusion.<br>• balloon dilatation of a<br>coronary artery occlusion<br>for the treatment of acute<br>myocardial infarction. | (1.5-4.0mm<br>configuration) is indicated<br>for:<br>• balloon dilatation of<br>the stenotic portion of a<br>coronary artery or<br>bypass graft stenosis in<br>patients evidencing<br>coronary ischemia for<br>the purpose of<br>improving myocardial<br>perfusion.<br>• balloon dilatation of a<br>coronary artery<br>occlusion for the<br>treatment of acute<br>myocardial infarction. | Catheter is indicated for<br>balloon dilatation of the<br>stenotic portion of a<br>coronary artery or<br>bypass graft stenosis for<br>the purpose of<br>improving myocardial<br>perfusion. | Catheter is indicated<br>for:<br>• balloon dilatation of<br>the stenotic portion of<br>a coronary artery or<br>bypass graft stenosis<br>in patients evidencing<br>coronary ischemia for<br>the purpose of<br>improving myocardial<br>perfusion.<br>• balloon dilatation of<br>a coronary artery<br>occlusion for the<br>treatment of acute<br>myocardial infarction. | |
| Operation principle<br>and design | Sapphire II PRO Coronary<br>Dilatation Catheter is a<br>percutaneous transluminal<br>coronary angioplasty (PTCA)<br>balloon catheter with a working<br>length of 140cm. The proximal<br>shaft is a PTFE coated stainless | Sapphire Coronary<br>Dilatation Catheter is a<br>percutaneous transluminal<br>coronary angioplasty<br>(PTCA) balloon catheter<br>with a working length of<br>140cm. The proximal shaft | Sapphire II PRO Balloon<br>Dilatation Catheter is a<br>rapid exchange balloon<br>catheter with a working<br>length of 140cm design<br>for both coronary and<br>peripheral indications. | The Selethru PTCA<br>Balloon Dilatation<br>Catheter is a rapid<br>exchange (RX) PTCA<br>Balloon Catheter, sterile,<br>single use, intravascular<br>medical device with a | KardiFlexTM PTCA<br>Balloon Dilatation<br>Catheter is a rapid<br>exchange balloon<br>catheter with a working<br>length of 142.5cm<br>design. The proximal | Substantially<br>equivalent<br>Differences do not<br>raise new or different<br>questions regarding<br>safety or effectiveness. |
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601Building C, Jinweiyuan Industrial Park, Pingshan District,
Shenzhen, Guangdong, CN 518118.
Tel.: +86-755-28380626 Fax.: +86-755-84517910
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601Building C, Jinweiyuan Industrial Park, Pingshan District, Shenzhen, Guangdong, CN 518118.
MEDCAPTAIN LIFE SCIENCE CO., LTD.
Tel.: +86-755-28380626 Fax.: +86-755-84517910 Email: disposable@medcaptain.com
Website: www.medcaptain.com
| steel hypotube. Hydrophilic<br>lubricious coatings are applied<br>to the distal section. The<br>semi-compliant balloons can be<br>inflated by injection dilute<br>contrast media solution through<br>the trailing hub of the catheter.<br>Two radiopaque platinum<br>marker bands are located within<br>the balloon segment (only one<br>centrally located marker band<br>for 1.5 configurations). The<br>catheter is compatible with 5F<br>or larger guiding catheters. The<br>internal lumen of the catheter<br>accepts a standard 0.014inch<br>PTCA guidewire. The proximal<br>part of the guidewire enters the<br>catheter tip and advances<br>coaxially out the catheter<br>proximal port, thereby allowing<br>both coaxial guidance and rapid<br>exchange of catheters with s<br>single standard length | is a polymer coated<br>stainless steel hypotube.<br>Hydrophilic lubricious<br>coatings are applied to the<br>distal section. The<br>semi-compliant balloons<br>can be inflated by injection<br>dilute contrast media<br>solution through the trailing<br>hub of the catheter. Two<br>radiopaque platinum marker<br>bands are located within the<br>balloon segment (only one<br>centrally located marker<br>band for 1.5<br>configurations). The<br>catheter is compatible with<br>5F or larger guiding<br>catheters. The internal<br>lumen of the catheter<br>accepts a standard<br>0.014inch PTCA guidewire.<br>The proximal part of the<br>guidewire enters the | The proximal shaft is a<br>PTFE coated stainless<br>steel hypotube.<br>Hydrophilic lubricious<br>coatings are applied to the<br>distal section.<br>Semi-compliant balloons<br>can be inflated by<br>injection dilute contrast<br>media solution through<br>the trailing hub of the<br>catheter Two radiopaque<br>platinum marker bands<br>are located within the<br>balloon segment (only<br>one centrally located<br>marker band for 1.0-1.5<br>configurations). The<br>catheter is compatible<br>with 4F or larger sheaths<br>or 5F or larger guiding<br>catheters. The internal<br>lumen of the catheter<br>accepts a standard | working length of 142cm.<br>The proximal shaft is<br>PTFE coated stainless<br>steel tube, which allows<br>for exceptional<br>pushability and a smooth<br>transition to the distal<br>shaft, which is composed<br>of an outer tube, an inner<br>tube, and a balloon. A<br>hydrophilic coating is<br>applied to the distal<br>section.<br>The proximal shaft of the<br>catheter has two markers<br>sections that aid in<br>gauging dilatation<br>catheter position relative<br>to the guiding catheter<br>tip). The distal shaft of the<br>catheter has an integrated<br>shaft system. The shaft<br>has a combination of<br>single lumen and dual | shaft is a PTFE coated<br>stainless steel hypotube.<br>Hydrophilic coatings<br>are applied to the distal<br>section. The<br>semi-compliant<br>balloons can be inflated<br>by injection of dilute<br>contrast media solution<br>through the hub of the<br>catheter. Two<br>radiopaque platinum<br>marker bands are<br>located within the<br>balloon segment (only<br>one centrally located<br>marker band for 1.5<br>configurations). The<br>catheter is compatible<br>with 5F or larger<br>guiding catheters. The<br>internal lumen of the<br>catheter accepts a<br>standard 0.014inch |
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601Building C, Jinweiyuan Industrial Park, Pingshan District, Shenzhen, Guangdong, CN 518118.
MEDCAPTAIN LIFE SCIENCE CO., LTD.
Tel.: +86-755-28380626 Fax.: +86-755-84517910
| | guidewire. Two marked sections<br>are located on the hypotube<br>shaft to indicate catheter<br>position. The design of this<br>dilatation catheter does not<br>incorporate a lumen for distal<br>dye injections or distal pressure<br>measurements. | catheter tip and advances<br>coaxially out the catheter<br>proximal port, thereby<br>allowing both coaxial<br>guidance and rapid<br>exchange of catheters with s<br>single standard length<br>guidewire. Two marked<br>sections are located on the<br>hypotube shaft to indicate<br>catheter position. The<br>design of this dilatation<br>catheter does not<br>incorporate a lumen for<br>distal dye injections or<br>distal pressure<br>measurements. | 0.014inch guidewire. The<br>proximal part of the<br>guidewire enters the<br>catheter tip and advances<br>coaxially out the catheter<br>proximal port, thereby<br>allowing both coaxial<br>guidance and rapid<br>exchange of catheters<br>with s single standard<br>length guidewire. Two<br>marked sections are<br>located on the hypotube<br>shaft to indicate catheter<br>position. The design of<br>this dilatation catheter<br>does not incorporate a<br>lumen for distal dye<br>injections or distal<br>pressure measurements. | lumen tubing. One lumen<br>is used for inflation of the<br>balloon with contrast<br>medium. The other lumen<br>in the distal shaft permits<br>the use of a guidewire to<br>facilitate advancement of<br>the catheter. The<br>guidewire enters the<br>catheter tip and advances<br>coaxially out the distal<br>RX port. Two marker<br>bands are located within<br>the balloon segment. The<br>design of this dilatation<br>catheter does not<br>incorporate a lumen for<br>distal dye injections or<br>distal pressure<br>measurements. | PTCA guidewire. The<br>proximal part of the<br>guidewire enters the<br>catheter tip and<br>advances coaxially out<br>the catheter proximal<br>port, thereby allowing<br>both coaxial guidance<br>and rapid exchange of<br>catheters with s single<br>standard length<br>guidewire. Two marked<br>sections are located on<br>the hypotube shaft to<br>indicate catheter<br>position. The design of<br>this dilatation catheter<br>does not incorporate a<br>lumen for distal dye<br>injections or distal<br>pressure measurements. | | |
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| Prescription/<br>Over-the-Counter | Prescription | Prescription | Prescription | Prescription | Prescription | Identical | |
| Target User | Intended for use by physicians | Intended for use by | Intended for use by | Intended for use by | Intended for use by | Identical | |
| | | physicians | physicians | physicians | physicians | | |
| Access/ Anatomical site: | | Inserted percutaneously into the arterial circulation or bypass graft stenosis | Inserted percutaneously into the arterial circulation or bypass graft stenosis | Inserted percutaneously into the arterial circulation or bypass graft stenosis | Inserted percutaneously into the arterial circulation or bypass graft stenosis | Identical | |
| Use environment: | | Hospitals | Hospitals | Hospitals | Hospitals | Identical | |
| Materials: | | / | / | / | / | / | |
| Balloon material | | Pebax | Pebax | Pebax | Pebax | Identical | |
| Hypotube | | PTFE coated stainless steel | PTFE coated stainless steel | PTFE coated stainless steel | PTFE coated stainless steel | Identical | |
| Marker bands | | Platinum | Platinum | Platinum | Platinum Alloys | Identical | |
| Performance: | | / | / | / | / | / | |
| Dimensional verification | | Balloon diameter: 1.5-4.0mm | Balloon diameter: 1.5-4.0mm | Balloon diameter: 1.5-4.0mm; | Balloon diameter: 1.5-4.0mm | Identical | |
| | | Balloon length: 10-30mm | Balloon length: 10-30mm | Balloon length: 5-30mm | Balloon length: 6-30mm | Identical to Reference device 2 | |
| | | Working length: 140cm | Working length: 140cm | Working length: 140cm…
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Learn the FDA Browser
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.