(112 days)
The Vascular Solutions Langston™ Dual Lumen Pressure Monitoring Catheter is indicated for delivery of contrast media in angiographic studies and for simultaneous pressure measurement from two sites. This type of pressure measurement is useful in determining transvalvular, intravascular and intraventricular pressure gradients.
The Vascular Solutions Langston™ Dual Lumen Pressure Monitoring catheter is intended for use as a pressure measurement catheter and for delivery of contrast media during angiographic studies. The DLP catheter consists of the Merit Medical Softouch Diagnostic Intravascular Catherer (K943739) as the inner lumen and an extruded outer lumen designed by Vascular Solutions. The inner lumen and hub assembly are purchased from Merit Medical in a non-sterile state. The Merit Softouch catheter and outer lumen are joined together using an adapter junction placed near the proximal end of the Merit Softouch catherer. The adapter junction incorporates a side port fitted with a stopcock/tube assembly for fluid flow and pressure measurement within the outer tube. The distal end of the outer tube is perforated with multiple holes to allow pressure measurement simultaneously with the inner catheter. The dual lumen catheter is deployed through standard introducers and will accommodate standard 0.038'' diameter guidewires.
The provided document, K050168, is a 510(k) Summary of Safety and Effectiveness for the Langston™ Dual Lumen Pressure Monitoring Catheter. This document is a premarket notification for a medical device and, as such, does not contain information about acceptance criteria or a study proving the device meets acceptance criteria in the manner typically seen for performance evaluations of AI/software devices.
Instead, the document focuses on demonstrating substantial equivalence to predicate devices through non-clinical testing. It explicitly states that "No clinical evaluations of this product have been conducted." Therefore, the information requested regarding acceptance criteria, device performance, sample sizes, ground truth establishment, expert involvement, and MRMC studies is not applicable to this submission, as such studies were not performed for this 510(k) clearance.
Here's a breakdown of the provided information in the context of your request:
1. A table of acceptance criteria and the reported device performance:
- Acceptance Criteria: Not explicitly stated in terms of performance metrics like sensitivity, specificity, accuracy, or similar quantitative measures for an AI/software device. The implicit acceptance criterion for a 510(k) is "substantial equivalence" to predicate devices, supported by non-clinical testing.
- Reported Device Performance: Instead of performance metrics, the document reports the outcome of non-clinical testing.
- "Testing conducted included assessments of the design verification of the Dual Lumen Pressure Monitoring Catheter and biocompatibility assessments."
- "The results of this battery of tests confirmed the suitability of the Dual Lumen Pressure Monitoring Catheter for its intended use."
- This confirms the device met its design specifications and biocompatibility requirements but doesn't provide specific quantitative performance data in the context of your request.
2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective):
- Not Applicable. No clinical or performance test set data is reported. The "testing" refers to bench testing and biocompatibility assessments, not data from a test set of cases.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience):
- Not Applicable. No ground truth establishment by experts for a test set was performed or reported.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:
- Not Applicable. No clinical test set and thus no adjudication method for ground truth.
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 is a hardware device submission, not an AI/software device. No MRMC study was conducted or reported.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- Not Applicable. This is a hardware device.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc):
- Not Applicable. No ground truth was established for "performance" as it relates to clinical outcomes or interpretation in the way an AI/software device would be evaluated. The "ground truth" equivalent here would be the engineering specifications and established safety standards met through bench testing.
8. The sample size for the training set:
- Not Applicable. This is not an AI/software device; there is no training set.
9. How the ground truth for the training set was established:
- Not Applicable. No training set was used.
In summary: The K050168 document is a traditional medical device 510(k) submission, not for an AI/software device. Its clearance is based on non-clinical testing demonstrating substantial equivalence to pre-existing predicate devices, not on the type of clinical performance studies and ground truth establishment typically required for AI-powered diagnostics.
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MAY 1 8 2005
510(K) SUMMARY OF SAFETY AND EFFECTIVENESS
| Common/Usual Name: | Intravascular Diagnostic Catheter |
|---|---|
| Product Trade Name: | Langston™ Dual Lumen Pressure Monitoring Catheter |
| Classification Name: | Class II21 CFR 870.1200Product Code: DQO |
| Manufacturer: | Vascular Solutions, Inc.6464 Sycamore CourtMinneapolis, Minnesota 55369USA |
| Establishment Registration: | 2134812 |
| Contact: | Sara L. CoonSenior Regulatory Affairs Associate(763) 656-4300 phone(763) 656-4200 fax |
| Performance Standards: | No performance standards have been developed undersection 514 for this device. |
Device Description:
Device Desemplosi.
The Vascular Solutions Langston™ Dual Lumen Pressure Monitoring catheter is intended for use as a pressure measurement catheter and for delivery of contrast media during angiographic studies. The DLP catheter consists of the Merit Medical Softouch Diagnostic Intravascular Catherer (K943739) as the inner lumen and an extruded outer lumen designed by Vascular Solutions. The inner lumen and hub assembly are purchased from Merit Medical in a non-sterile state. The Merit Softouch catheter and outer lumen are joined together using an adapter junction placed near the proximal end of the Merit Softouch catherer. The adapter junction incorporates a side port fitted with a stopcock/tube assembly for fluid flow and pressure measurement within the outer tube. The distal end of the outer for trail 110 ware possible holes to allow pressure measurement simultaneously with the tube is personed was as a catheter. The dual lumen catheter is deployed through standard sidences at are and will accommodate standard 0.038'' diameter guidewires.
Intended Use:
The Vascular Solutions Langston™ Dual Lumen Pigtail Catheter is indicated for delivery of The vacouxi oor in angiographic studies and for simultaneous pressure measurement from two sites. This type of pressure measurement is useful in determining transvalvular, intravascular and intraventricular pressure gradients.
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Summary of Non-Clinical Testing:
Sunnillary of Non-Gillicar 2 council.
Testing conducted included assessments of the design verification of the Dual Lumen I esuits conducted mended assessments biocompatibility assessments. The results of this Fressure Monitoning Catherer assist ""
battery of tests confirmed the suitability of the Dual Lumen Pressure Monitoring Catheter for its intended use.
Summary of Clinical Testing:
No clinical evaluations of this product have been conducted.
Predicate Device
I Iculcate Device I The Dual Lumen Pigtail Catheter, the Cordis Dual Lumen Pressure Monitoring Catheter, and the Merit Medical Softouch Diagnostic Intravascular Catheter.
Conclusions:
The Langston Dual Lumen Pressure Monitoring Catheter is substantially equivalent to the I The Langston Dual Lumen Pigtail Catheter , the Cordis Dual Lumen Pressure Monitoring Latheter and the Merit Medical Softouch Diagnostic Intravascular Catheter. The testing Catheter and the Heather the Langston Dual Lumen Pressure Monitoring Catheter will perform as intended.
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Image /page/2/Picture/1 description: The image is a black and white emblem for the U.S. Department of Health & Human Services. The emblem features the department's logo, which consists of three stylized human figures connected by flowing lines, representing the department's mission to protect the health of all Americans. The logo is surrounded by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" in a circular arrangement.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAY 1 8 2005
Ms. Sara L. Coon Senior Regulatory Affairs Associate Vascular Solutions, Inc. 6464 Sycamore Court Minepolis, MN 55369
Re: K050168
Trade/Device Name: Langston™ Dual Lumen Pressure Monitoring Catheter Regulation Number: 21 CFR 870.1200 Regulation Name: Diagnostic intravascular catheter Regulatory Class: II Product Code: DQO Dated: May 3, 2005 Received: May 4, 2005
Dear Ms. Coon:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nevers for was your we determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for ass surfed to May 28, 1976, the enactment date of the Medical Device Amendments, or to conninered prox conner 2012/ 2018 11:12 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. The r ou may, therefered, issions of the Act include requirements for annual registration, listing of general concess profile to proctice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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 801); good manufacturing practice requirements as set
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Page 2 -- Ms. Sara L. Coon
forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic forth in the quality systems (Sections 531-542 of the Act); 21 CFR 100-1050.
product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050 product radiation control provisions (Sections 991 ceries in your Section 510(k)
This letter will allow you to begin marketing your device of your daying to Jeggl This letter will allow you to begin makemig your avvalence of your device to a legally premarket notification. The PDA intallight substanced by and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please e If you desire specific advice for your aconce to and one one the regulation entitled, the regulation entitled, comact the Office of Comphalloo at (210) 276 off (21CFR Part 807.97). You may obtain "Misbranding by reference to premarket to premailities under the Act from the Division of Small other general informational and Consumer Assistance at its toll-free number (800) 638-2041 or 1 Manufacturers, International and Consalher physical on the many of the new learners himl.
Sincerely yours,
Bhimman for
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Indications for Use Statement
510(k) Number:
Device Name:
Vascular Solutions Langston™ Dual Lumen Pressure Monitoring Catheter
Indications for Use:
The Vascular Solutions Langston™ Dual Lumen Pressure Monitoring Catheter is indicated for The Vascular Solutions Earingershic studies and for simultaneous pressure measurement ticavely of containt modeline in angest of the good intravascular and intraventricular pressure gradients.
Prescription Use _ X (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Bhimman
(Division Sign-Off)
Division of Cardiovascular Devices
510(k) Number K050168
Page 1 of
§ 870.1200 Diagnostic intravascular catheter.
(a)
Identification. An intravascular diagnostic catheter is a device used to record intracardiac pressures, to sample blood, and to introduce substances into the heart and vessels. Included in this generic device are right-heart catheters, left-heart catheters, and angiographic catheters, among others.(b)
Classification. Class II (performance standards).