DYNALINK .018 BILLARY SELF-EXPANDING STENT SYSTEM

K014007 · Guidant Corp. · FGE · Jan 7, 2002 · Gastroenterology, Urology

Device Facts

• Record ID: K014007
• Device Name: DYNALINK .018 BILLARY SELF-EXPANDING STENT SYSTEM
• Applicant: Guidant Corp.
• Product Code: FGE · Gastroenterology, Urology
• Decision Date: Jan 7, 2002
• Decision: SESU
• Submission Type: Special
• Regulation: 21 CFR 876.5010
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

The DYNALINK™ .018 Biliary Self-Expanding Stent System is indicated for the palliation of malignant strictures in the biliary tree.

Device Story

The DYNALINK™ .018 Biliary Self-Expanding Stent System is a catheter-based delivery system for a self-expanding nitinol stent. The system features a coaxial catheter design compatible with 0.018" guide wires. The distal end contains the constrained stent, a soft tip, and radiopaque markers for positioning. A proximal pull-back handle allows the user to retract the outer sheath, deploying the stent into the biliary tree. The stent is laser-cut from superelastic nitinol, electropolished, and heat-treated for stability. Used by physicians in clinical settings to treat malignant biliary strictures; the device provides mechanical support to maintain duct patency, facilitating bile flow and palliating symptoms. Safety and effectiveness for vascular use have not been established.

Clinical Evidence

Bench testing only. No clinical data provided.

Technological Characteristics

Materials: Superelastic nickel-titanium (nitinol) stent; coaxial catheter delivery system. Features: Serpentine ring stent pattern, electropolished surface with titanium oxide layer, radiopaque markers. Connectivity: None. Sterilization: Not specified. Software: None.

Indications for Use

Indicated for palliation of malignant strictures in the biliary tree. Not indicated for use in the vascular system.

Regulatory Classification

Identification

A biliary catheter and accessories is a tubular flexible device used for temporary or prolonged drainage of the biliary tract, for splinting of the bile duct during healing, or for preventing stricture of the bile duct. This generic type of device may include a bile collecting bag that is attached to the biliary catheter by a connector and fastened to the patient with a strap.

Special Controls

*Classification.* Class II (special controls). The device, when it is a bile collecting bag or a surgical biliary catheter that does not include a balloon component, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9.

Predicate Devices

• DYNALINK™ Biliary Self-Expanding Stent System (K002143)

Submission Summary (Full Text)

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K014007

## 510(k) SUMMARY

# 2007

The 510(k) Summary is submitted in accordance with 21 CFR Part 807, Section 807.92

| Submitter's Name: | Guidant Corporation |
|-----------------------------|----------------------------------------------------|
| Submitter's Address: | 3200 Lakeside Drive<br>Santa Clara, CA 95052 |
| Telephone:<br>Fax: | 408/845-1067<br>408/845-3743 |
| Contact Person: | Saba Modjarrad |
| Date Prepared: | December 03, 2001 |
| Device Trade Name: | DYNALINK™ .018 Biliary Self-Expanding Stent System |
| Device Common Name: | Biliary Stent |
| Device Classification Name: | Biliary Catheter |
| Device Classification: | Class II |

### Summary of Substantial Equivalence:

The design, materials, method of delivery and intended use features of DYNALINK™ .018 Biliary Self-Expanding Stent System are substantially equivalent with regard to these features in the predicate device, the DYNALINK™ Biliary Self-Expanding Stent System (K002143, October 12, 2000).

#### Device Description:

The DYNALINK™ .018 Biliary Self-Expanding Stent System is a catheter designed to deploy a self-expanding nickel titanium (Nitinol) stent into the biliary tree.

The catheter body is constructed from two coaxial members. The inner member (IM) is compatible with a 0.018" guide wire in an over-the-wire configuration. The outer member (OM) is composed of a distal sheath that constrains the unexpanded stent, an outer shaft over most of the catheter length, and a proximal handle used to retract the assembly.

The distal end of the delivery system includes the DYNALINK™ Biliary Self-Expanding Stent held in its constrained state by the stent-restraining sheath, a soft, low profile tip, and two radioopaque markers to indicate the proximal and distal ends of the stent. At the proximal end of the

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delivery system, the user interface is composed of a pull-back handle attached to the OM, a shaped housing that allows the handle to slide axially, and a luer fitting that is rigidly fixed to the shaped housing.

The DYNALINK™ Biliary Self-Expanding Stent is fabricated from superelastic nickel-titanium (nitinol). The DYNALINK™ Biliary Self-Expanding Stent is comprised of a series of serpentine rings that are aligned along a common longitudinal axis.

The stent is laser cut from a tube of superelastic nitinol. All of the stent diameters are cut with similar stent patterns, and the stent is expanded and heat-treated to be stable at the desired final diameter. The stents are electropolished to obtain a smooth finish with a thin layer of titanium oxide on the surface.

## Intended Use:

The DYNALINK™ .018 Biliary Self-Expanding Stent System is indicated for palliation of malignant strictures in the biliary tree.

## Technological Characteristics:

Comparisons of the new and predicate devices show that technological characteristics such as materials, biocompatibility, performance properties, sterilization and packaging are substantially equivalent to the currently marketed predicate devices. The design modification of the new biliary stent system compared to that of the predicate biliary stent system is the length of the stent.

## Performance Data:

The safety and effectiveness of the DYNALINK™ .018 Biliary Self-Expanding Stent System has been demonstrated through data collected from in vitro bench tests and analyses.

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Image /page/2/Picture/1 description: The image is a black and white seal for the U.S. Department of Health and Human Services. The seal is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the seal is an abstract image of an eagle with its wings spread.

Food and Drug Administration 200 Corporate Boulevard Rockville MD 20850

JAN - 7 2002

Ms. Saba Modiarrad Regulatory Associate II Guidant Corporation 3200 Lakeside Drive Santa Clara, California 95054

Re: K014007

Trade/Device Name: DYNALINK™ .018 Biliary Self-Expanding Stent Sytem Regulation Number: 21 CFR §876.5010 Regulation Name: Biliary catheter and accessories Regulatory Class: II Product Code: 78 FGE Dated: December 4, 2001 Received: December 5, 2001

Dear Ms. Modjarrad:

We have reviewed your Section 510(k) notification of intent to market the device referenced above and we 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). You may, therefore, market the device, subject to the general controls provisions of the Act and the limitations described below. 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.

The Office of Device Evaluation has determined that there is a reasonable likelihood that this device will be used for an intended use not identified in the proposed labeling and that such use could cause harm. Therefore, in accordance with Section 513(i)(1)(E) of the Act, the following limitation must appear in the Warnings section of the device's labeling:

The safety and effectiveness of this device for use in the vascular system have not been established.

Furthermore, the indication for biliary use must be prominently displayed in all labeling, including pouch, box, and carton labels, instructions for use, and other promotional materials, in close proximity to the trade name, of a similar point size, and in bold print.

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Page 2 - Ms. Saba Modjarrad

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.

The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and permits your device to proceed to the market. This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification if the limitation statement above is added to your labeling, as described.

Please note that the above labeling limitations are required by Section 513(i)(1)(E) of the Act. Therefore, a new 510(k) is required before these limitations are modified in any way or removed from the device's labeling.

If you desire specific information about the application of other labeling requirements to your device (21 CFR Part 801 and additionally Part 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at [phone]. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at [phone]. Also, please note the regulation entitled, "Misbranding by reference to premarket notification''(21 CFR Part 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number [phone] or [phone] or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.

Sincerely yours,

L. W. T. Jen

Bernard E. Statland, M.D., Ph.D. Director Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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510(k) Number (if known): K014007

Device Name: DYNALINK™ .018 Biliary Self-Expanding Stent System

FDA's Statement of the Indications For Use for device:

The DYNALINK™ .018 Biliary Self-Expanding Stent System is indicated for the palliation of malignant strictures in the biliary tree.

Prescription Use V OR (Per 21 CFR 801.109)

Over-The-Counter Use

Yancy C. Borden

Division of Reproductive, Abdominal,
and Radiological Devices
510(k) Number K014007