FOSSA EXPANDING DOUBLE PIGTAIL URETERAL STENT
K021140 · Fossa Industries, Inc. · FAD · Jun 28, 2002 · Gastroenterology, Urology
Device Facts
| Record ID | K021140 |
| Device Name | FOSSA EXPANDING DOUBLE PIGTAIL URETERAL STENT |
| Applicant | Fossa Industries, Inc. |
| Product Code | FAD · Gastroenterology, Urology |
| Decision Date | Jun 28, 2002 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 876.4620 |
| Device Class | Class 2 |
| Attributes | Therapeutic |
Intended Use
The Fossa Double Pigtail Expanding Ureteral Stent is indicated for use as an indwelling ureteral catheter for drainage of urine from the kidney to the bladder.
Device Story
Flexible, pigtail-tipped, self-expanding ureteral stent; includes insertion sheath, pusher, and optional suture for removal. Features short slits along working length to allow radial expansion and fluid flow. Used by physicians to facilitate urine drainage from kidney to bladder. Stent placed via standard urological procedure. Benefits include improved drainage through radial expansion mechanism.
Clinical Evidence
Bench testing only; no clinical data provided. Performance testing conducted in accordance with FDA's Guidance for the Content of Premarket Notifications for Ureteral Stents.
Technological Characteristics
Flexible, self-expanding pigtail-tipped stent; radial expansion via short slits; materials identical to predicate urinary drainage devices; various diameters and lengths; includes insertion sheath and pusher.
Indications for Use
Indicated for patients requiring an indwelling ureteral catheter for urine drainage from the kidney to the bladder.
Regulatory Classification
Identification
A ureteral stent is a tube-like implanted device that is inserted into the ureter to provide ureteral rigidity and allow the passage of urine. The device may have finger-like protrusions or hooked ends to keep the tube in place. It is used in the treatment of ureteral injuries and ureteral obstruction.
Predicate Devices
- Cook Double Pigtail Polyurethane Stent
- Bard Double Pigtail Ureteral Stent
Related Devices
- K031292 — MODIFICATION TO FOSSA URETERAL STONE SWEEPER · Fossa Medical, Inc. · May 22, 2003
- K960148 — CIRCON-SURGITEK CLASSIC DOUBLE PIGTAIL URETERAL STENT · Cabot Medical Corp. · Mar 25, 1996
- K251469 — Endura Ureteral Stent and Stent Set · Cathegenix (Xiamen) Co., Ltd. · Dec 19, 2025
- K250824 — Percuflex Ureteral Stent; Percuflex Plus Ureteral Stent; Percuflex Plus SureDrive Steerable Ureteral Stent Set; Contour Ureteral Stent; Contour SureDrive Steerable Ureteral Stent Set; Contour VL Variable Length Ureteral Stent; Contour VL SureDrive Steerable Ureteral Stent Set; Polaris Ultra Ureteral Stent; Polaris Loop Ureteral Stent; Tria Firm Ureteral Stent; Tria Soft Ureteral Stent; Percuflex Urinary Diversion Stent Set · Boston Scientific Corporation · Apr 15, 2025
- K021602 — FOSSA URETERAL STONE SWEEPER · Fossa Industries, Inc. · Jul 26, 2002
Submission Summary (Full Text)
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### 510(k) Summary XII.
Pursuant to 512(i)(3)(A) of the Food, Drug and Cosmetic Act, Fossa Industries, Inc. is required to submit with this Premarket Notification either an "...adequate summary of any information respecting safety and effectiveness or state that information will be made available upon request of any person." Fossa chooses to submit a summary of the safety and effectiveness information. The summary is as follows:
| Trade Name: | Fossa Expanding Double Pigtail Ureteral Stent |
|----------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(k) Sponsor: | Fossa Industries, Inc.<br>580 Harrison Avenue, 4th Floor<br>Boston, MA 02118 |
| Device Generic Name: | Ureteral stent |
| Classification: | According to Section 513 of the Federal Food, Drug, and<br>Cosmetic Act, the device classification is Class II,<br>Performance Standards (78FAD), and is classified under<br>21 CFR 876.4620. |
| Predicate Devices: | Cook Double Pigtail Polyurethane Stent<br>Bard Double Pigtail Ureteral Stent |
# Product Description:
The Fossa Expanding Double Pigtail Ureteral Stent set consists of a flexible, Pigtail tipped, self-expanding stent with: Insertion sheath, "Pusher," and optional pre-attached suture to facilitate stent removal. The stent is offered in various diameters and working lengths. Short slits along the working length of the stent allow radial device expansion to permit fluid flow through and around the device.
# Indications for Use:
The Fossa Double Pigtail Expanding Ureteral Stent is indicated for use for as an indwelling ureteral catheter for drainage of urine from the kidney to the bladder.
# Safety and Performance:
Product performance testing has been provided in support of this 510(k) in accordance with FDA's Guidance for the Content of Premarket Notifications for Ureteral Stents. The materials used in the construction of the Fossa stent are identical to those used in other currently marketed urinary drainage devices.
# Conclusion:
Based on the indications for use, technological characteristics, performance testing and comparison to predicate devices, the Fossa Double Pigtail Expanding Ureteral Stent has been shown to be safe and effective for its intended use.
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Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is an abstract symbol resembling an eagle or bird in flight, composed of three curved lines that suggest the wings and body of the bird.
### Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
JUN 2 8 2002
Ms. Gloria Kolb President Fossa Industries, Inc. 580 Harrison Ave., 4th Floor BOSTON MA 02118
Re: K021140 Trade/Device Name: Fossa Double Pigtail Expanding Ureteral Stent Regulation Number: 21 CFR 876.4620 Regulation Name: Ureteral stent Regulatory Class: II Product Code: 78 FAD Dated: April 5, 2002 Received: April 9, 2002
Dear Ms. Kolb:
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. 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.
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 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (sections 531-542 of the Act); 21 CFR 1000-1050.
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This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire snecific advice for your device on our labeling regulation (21 CFR Part 801), nlease contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter:
| 8xx.1xxx | (301) 594-4591 |
|----------------------------------|----------------|
| 876.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4616 |
| 884.2xxx, 3xxx, 4xxx, 5xxx, 6xxx | (301) 594-4616 |
| 892.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4654 |
| Other | (301) 594-4692 |
Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). Other general information on vour responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.
Sincerely vours.
Nancy C. Brogdon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Page ______ of _______________________________________________________________________________________________________________________________________________________________
510(k) Number (if known): K021/40
Expanding Ureteral Stent Device Name:
Indications for Use:
The Fossa Double Pigtail Expanding Ureteral Stent is indicated for use as an indwelling ureteral catheter for drainage of urine from the kidney to the bladder.
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
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| Division of Reproductive, Abdominal,<br>and Radiological Devices | |
| 510(k) Number | K021140 |
Fossa Industries, Inc. 5 Expanding Double Pigtail Ureteral Stent