Endoscopy Supplies

Niti-S™ Biliary S-Type Metal Uncovered Stent

Category: Biliary Stents

S-Type Uncovered Stent

The Niti-S & ComVi Biliary Stent consists of the implantable metallic stent and introducer system. The stent is made of Nitinol wire. It is a flexible, fine mesh tubular prosthesis which has radiopaque markers on each end and at the center. The Stent is loaded in introducer system and upon deployment the stent imparts an outward radial force on the luminal surface of the bile duct to establish patency. Niti-S Full Covered Biliary Stents used in benign stricture can be removed; (see Warnings). Full Covered Biliary Stents can be repositioned after deployment (see Warnings).

Product Description

Principle of Operation

The outer sheath is pulledback by immobilizing the hub in one hand, grasping the Y-connector with the other hand, and gently sliding the Y-connector along the pusher towards the hub. Retraction of the outer sheath releases the stent.

Indication for Use

The Niti-S Biliary Stent is intended for maintaining biliary luminal patency in malignant strictures.

Details / Features

  • Fixed cell with braided construction
    Flexible and resistant to fracture
  • Atraumatic ends
    Less hyperplasia at the edges
  • Radiopaque marker: 3(three) at both ends & 2(two) in the middle


Indication: Malignant biliary strictures

Clinical Reference

  • Pneumoperitoneum Following Percutaneous Biliary Intervention: Not Necessarily a Cause for Alarm
    by Suraj J. Amonkar et al [Cardiovasc Intervent Radiol. 2008 Mar-Apr;31(2):439-43]
  • Palliation of Malignant Biliary and Duodenal Obstruction with Combined Metallic Stenting
    by Devrim Akinci et al [Cardiovasc Intervent Radiol. 2007 Nov-Dec;30(6):1173-7]

Key Resources

Product Information

Ordering Information


What is a Niti-S™ Biliary S-Type Metal Uncovered Stent

Gastroenterology, innovations in medical devices continue to advance the quality of patient care. The Niti-S™ biliary s-type metal uncovered stent, has a crucial role in the treatment of biliary obstructions. We’ll explore the features, benefits, and applications of this specialized stent.


What are biliary obstructions

The Niti-S™ Biliary S-Type Metal Uncovered Stent is a self-expandable metallic stent designed to manage biliary obstructions. These obstructions can occur due to various conditions, including malignant tumors, benign strictures, and other complications that block the bile ducts. The primary function of this stent is to restore bile flow from the liver to the small intestine, alleviating symptoms such as jaundice, itching, and abdominal pain.

Applications and Benefits

The Niti-S™ Biliary S-Type Metal Uncovered Stent is primarily used in the palliative treatment of malignant biliary obstructions. By providing a pathway for bile flow, it significantly improves the quality of life for patients suffering from obstructive jaundice and other related symptoms. 

nitis gastrointestinal metal stent s-type

Benefits include:

Minimally Invasive: The procedure to place the stent is less invasive compared to surgical options, leading to shorter recovery times and reduced hospital stays.

Durability: The Nitinol construction ensures that the stent remains functional over an extended period, reducing the need for frequent replacements.

Symptom Relief: Patients experience immediate relief from symptoms such as jaundice, pruritus, and abdominal discomfort.


The Niti-S™ Biliary S-Type Metal Uncovered Stent represents a significant advancement in the management of biliary obstructions. Its unique features and benefits make it an essential tool in gastroenterology, improving patient outcomes and quality of life

By integrating the latest technology in stent design, the Niti-S™ Biliary S-Type Metal Uncovered Stent continues to set a high standard in the treatment of biliary obstructions.