Find HS Code and trade information for stents

Stents

Stents are small, expandable tubes inserted into a blocked blood vessel to help keep it open. They are commonly used to treat narrowed arteries, particularly those affected by atherosclerosis.

Material

Stents are constructed from various materials, each with specific properties:

• Metal Stents: Historically, stainless steel was the primary material. More commonly, cobalt-chromium alloys are used due to their greater strength and flexibility.
• Drug-Eluting Stents (DES): These stents are coated with medication (e.g., paclitaxel, sirolimus, everolimus) to prevent the re-narrowing of the artery (restenosis). The stent itself is typically made of a metal alloy, with the coating applied to the surface.
• Biodegradable Stents: Made from materials like polylactic acid (PLA) or magnesium alloys, these stents dissolve over time, leaving the artery to remain open on its own after the healing process.
• Polymer-Free Stents: These stents aim to reduce the risk of late stent thrombosis by eliminating the polymer coating used in DES.

Purpose

The primary purpose of a stent is to restore adequate blood flow in arteries that have been narrowed or blocked by plaque buildup. This is crucial for preventing complications such as:

• Angina: Chest pain caused by reduced blood flow to the heart.
• Heart Attack: Occurs when blood flow to the heart muscle is completely blocked.
• Stroke: Occurs when blood flow to the brain is blocked.
• Peripheral Artery Disease (PAD): Reduced blood flow to the limbs.

Function

Stents function by providing a scaffold to hold the artery open.

• Deployment: Stents are typically delivered to the blocked artery via a catheter inserted through an artery in the groin or arm. The stent is collapsed during insertion and then expanded at the site of the blockage, usually with a balloon catheter.
• Mechanical Support: The stent provides continuous support to the artery wall, preventing it from collapsing or narrowing again.
• Drug Release (DES): Drug-eluting stents release medication over a period of weeks or months to inhibit the growth of scar tissue that can lead to restenosis.

Usage Scenarios

• Coronary Artery Disease (CAD): The most common application, involving the placement of stents in the heart arteries.
• Peripheral Artery Disease (PAD): Stents are used to open blocked arteries in the legs and arms.
• Renal Artery Stenosis: Stents can be used to treat narrowing of the arteries supplying the kidneys.
• Carotid Artery Disease: Stents can be used to prevent stroke by opening narrowed carotid arteries in the neck.
• Biliary Stents: Used to keep the bile ducts open, often in cases of cancer or blockage from gallstones.

Common Types

• Bare-Metal Stents (BMS): The original type of stent, made of stainless steel. Less common now due to a higher risk of restenosis.
• Drug-Eluting Stents (DES): The most widely used type, coated with medication to prevent restenosis. Different drugs and polymer coatings are available.
• Biodegradable Stents: Dissolve over time, leaving a natural artery. Suitable for certain patients and conditions.
• Covered Stents: Used in specific situations, such as to repair dissections or to cover perforations in arteries.
• Self-Expanding Stents: Expand automatically once deployed.
• Balloon-Expandable Stents: Require inflation of a balloon catheter to expand the stent.

Based on the provided information, the declared goods relate to components used in medical procedures, specifically those providing support or maintaining open airways.

Here are the relevant HS codes:

• 9617006000: Vacuum flasks and other vacuum vessels, complete; parts thereof other than glass inners: Parts. This HS code covers parts of vacuum flasks and vessels, excluding glass components. While "stents" aren't explicitly mentioned, components used in medical devices could fall under this category if they utilize vacuum technology or are parts of a vacuum vessel-based device.
  • 96: Miscellaneous manufactured articles.
  • 17: Instruments and apparatus which are used in medical, surgical, dental or veterinary practice; parts and accessories thereof.
  • 006000: Specifically designates parts of vacuum flasks and other vacuum vessels.

According to the provided reference material, the HS code options related to 'stents' are limited, with only the following 1 found.

The total tax rate for HS code 9617006000 is 37.2%, comprised of a 7.2% base tariff and a 30% additional tariff effective after April 2, 2025.