
EUS Based Needle
Application: FNA, FNB, Core Biopsy
Material: Nitinol, SS3034, 316
Gauge: 19-25G
Tolerance: +/-0.01mm
Manufacturing: Grinding
Facilities: Grinding Machine
Description
What Is An EUS Based Needle?
The EUS-Based Needle is a medical tool specifically designed for diagnostic or therapeutic procedures under Endoscopic Ultrasound (EUS) guidance. It includes EUS FNA (Fine Needle Aspiration) needles, EUS FNB (Fine Needle Biopsy) needles, and other specialized needles for specific purposes, such as cyst drainage needles, drug injection needles, etc. These are widely used for the diagnosis and treatment of lesions in areas like the pancreas, gastrointestinal tract, and mediastinum.
Shenzhen Manners Technology, headquartered in Shenzhen, China, is a leading OEM medical device manufacturer specializing in the research and production of EUS-Based Needles. We offer a variety of needle tip designs (such as reverse cutting needles, side-hole needles) and needle sizes (19G, 20G, 22G, 25G) to meet the needs of different lesion types and clinical requirements. With advanced manufacturing technology, strict quality control, and flexible customization capabilities, we are committed to providing high-performance, high-reliability EUS needle

Comparison of EUS FNB vs. EUS FNA
EUS FNA (Fine Needle Aspiration) is mainly used to collect cell samples for cytological analysis. Finer needles, such as 22G and 25G, are particularly suitable for delicate or highly vascular lesions. EUS FNB (Fine Needle Biopsy), on the other hand, is used to obtain tissue cores for histological evaluation and molecular testing. Coarser needle sizes, like 19G and 20G, are preferred for lesions that require high-quality tissue samples.
|
Feature |
EUS FNB |
EUS FNA |
|
Sample Type |
Tissue core |
Cell sample |
|
Diagnostic Accuracy |
Higher (suitable for histological and molecular tests) |
Lower (only suitable for cytological examination) |
|
Needle Gauge |
Typically larger (e.g., 19G, 20G) |
Typically smaller (e.g., 22G, 25G) |
|
Procedure Difficulty |
Higher |
Lower |
|
Cost |
Higher |
Lower |
|
Application Scenario |
Lesions requiring histological or molecular testing |
Lesions where cytology is sufficient for diagnosis |
Applications of EUS Based Needle
The EUS-based needle combines endoscopy and ultrasound technology to provide high-resolution imaging of lesions within the digestive tract and surrounding organs. The fine needle is inserted through the endoscope's working channel and, guided by ultrasound, is advanced through the digestive tract wall to reach the targeted area for sampling or treatment, such as cyst drainage or drug injection.
This technique is commonly employed to diagnose lesions in the digestive system, lungs, or other deep-seated organs, including tumors, cysts, lymph nodes, and abnormalities in the pancreas, gastrointestinal tract, liver, and more. It is also used to collect cell or tissue samples for pathological analysis, including for tumors, cysts, inflammation, and other conditions.
|
Application |
Needle Size |
Description |
|
General Diagnostic Use |
22G to 25G |
Thinner needles for better maneuverability and minimal discomfort. Ideal for sampling from the stomach, liver, or pancreas. |
|
Tumor Biopsy |
19G to 22G |
Thicker needles with cutting edge to handle denser, fibrous tissues like pancreatic tumors or liver masses, ensuring reliable tissue acquisition. |
|
Cyst or Abscess Aspiration |
19G to 21G |
Needles with a wider lumen to facilitate fluid aspiration from larger cysts or abscesses. Ideal for precise targeting of fluid-filled cavities. |
|
Lymph Node Biopsy |
22G to 25G |
Thinner needles for fine tissue sampling from small or deep-seated lymph nodes, ensure minimal tissue disruption. |
|
Liver or Other Organ Sampling |
19G to 22G |
Slightly thicker needles for liver or similar organ biopsies, offering strength to reach deeper tissues and ensuring effective sample collection. |
EUS Based Needle Product specifics
|
Product Name |
EUS Based Needle |
|
Application |
FNA, FNB, Cyst Drainage, Tumor Treatment |
|
Design Options |
Tri-tip, Echo-tip, Cutting edge |
|
Materials |
Nitinol (Nickel-Titanium Alloy), Stainless Steel (304, 316L) |
|
Hardness |
HRC 22-25 (304), HRC 50-60 (316L) |
|
Diameter |
19G, 20G, 21G,22G,25G |
|
Needle Length |
0 to 8 cm |
|
Tolerance |
+/- 0.01mm |
|
Manufacturing |
Sliding Headstock Lathe, Laser Etching, Grinding |
|
Certifications |
ISO 9001:2015, ISO 13485 |
|
Facilities |
Citizen L12-1M7, Grinding Machine, 5-Axis Laser Cutting Machine |
|
Packing |
PP bag, or tailor-made packing on request |
EUS-based needles are typically made from materials such as cobalt-chromium (Co-Cr), medical-grade stainless steel (304, 316L), nitinol, or titanium alloys. We specifically select medical-grade stainless steel and nitinol as core materials to ensure excellent strength, flexibility, and corrosion resistance, while also meeting ISO 10993 and FDA biocompatibility standards.
We offer a variety of needle tip designs (such as reverse-cutting and side-hole needles) and needle sizes (19G, 20G, 22G, 25G) to meet the needs of different lesion types and clinical requirements.
- Reverse-cutting needle: The tip is designed with a reverse-cutting slot, allowing for easier tissue cutting during insertion.
- Side-hole needle: The tip features a side hole that facilitates tissue entry into the needle lumen.
- Grasping needle: Equipped with a grasping mechanism to actively capture tissue.
Common needle sizes include 19G, 20G, and 22G. Larger sizes, such as 19G, are suitable for obtaining larger tissue samples but can be more challenging to handle, while smaller sizes, such as 22G, are ideal for fragile or vascular-rich lesions. Our needles are equipped with platinum imaging markers on the tip or shaft to assist in positioning under ultrasound or X-ray guidance.
At Manners Technology, we provide full material certification for every component of the EUS-based needle. Using micron-level precision machining, we ensure uniformity in the needle shaft and sharpness of the tip, minimizing tissue damage and improving sampling success rates. Please note, these needles are custom-made products, not off-the-shelf items. Manners specializes in providing tailored solutions to meet your specific requirements. Contact us for custom orders and expert support.
EUS Based Needle Product Flow
The production of EUS-based needles is a highly precise process that includes material selection, precision machining, surface treatment, and rigorous quality control. At Manners Technology, we manufacture high-quality, high-performance needles by optimizing both design and production techniques. With ongoing technological advancements, our manufacturing processes are becoming more intelligent and efficient.
|
Components |
Process Flow |
Process Name |
Machine Used |
Machine Brand |
Inspection Equipment |
| EUS Based Needle |
1 |
Incoming |
N/A |
N/A |
|
|
2 |
Turning |
Sliding Headstock Lathe |
Citizen L12-1M7 |
Profile Projectors |
|
|
3 |
Grinding |
Grinding Machine |
N/A |
||
|
4 |
Laser Etching |
5-Axis Laser Cutting Machine |
N/A |
||
|
5 |
Electrolytic Polishing |
N/A |
N/A |
||
|
6 |
Ultrasonic Cleaning |
N/A |
N/A |
||
|
7 |
Inspection & packing |
N/A |
N/A |
EUS Based Needle Manufacturing Process
1. Material Selection and Testing
- We use medical-grade stainless steel or nitinol that complies with ISO 10993 and FDA standards, ensuring exceptional strength, corrosion resistance, and biocompatibility.
- Raw materials undergo rigorous chemical and physical property testing to ensure they meet industry requirements.
2. Needle Body Forming and Machining
- Precision drawing technology is employed to shape the material into a fine needle body, maintaining a uniform diameter with a tolerance controlled within ±0.01mm.
- CNC machining or laser processing is used to cut the needle body to the required length and shape the needle tip into specific designs, such as bevel, reverse-cutting slots, or side-hole configurations.
3. Surface Treatment and Functional Coatings
- The needle body undergoes high-precision polishing to minimize surface roughness, reduce tissue trauma, and improve puncture efficiency.
- A PTFE (polytetrafluoroethylene) or other functional coatings are applied to reduce friction and increase durability.
4. Imaging Markings and Customization
- At the customer's request, platinum or gold coatings are applied to specific areas of the needle tip or body as imaging markers, ensuring clear visibility under ultrasound or X-ray.
- High-precision laser engraving is used to mark specifications, branding, or other custom details on the needle body.
5. Quality Inspection and Performance Testing
- Each needle undergoes thorough quality checks to ensure that the diameter, length, and needle tip shape meet the required specifications.
- Puncture force tests, flexibility tests, and imaging verification are conducted to ensure the product performs according to clinical standards.
6. Packaging and Delivery
- Each needle is individually packaged in a PP bag to maintain sterility and protect against moisture.
- Custom packaging options are available based on customer requirements to cater to specific needs.
| process |
Picture
|
Description
|
Role
|
Advantages
|
|
Material Selection |
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The main shaft is crafted from 304 stainless steel (HRC 22-25) and the needle tip is from cobalt-chromium (Co-Cr) alloy. |
Ensures durability, flexibility, and sharpness for accurate tissue acquisition. |
Provides superior performance, ensuring a long-lasting and reliable needle for clinical procedures. |
|
CNC Turning - Sliding Headstock Lathe |
![]() |
The needle body is shaped using the Citizen L12-1M7 Sliding Headstock Lathe, providing precision turning. |
Shaping the needle body and achieving the required dimensions for the needle shaft and tip. |
Ensures precision with a tolerance of ±0.005 mm and repeatability of ±0.002 mm, guaranteeing consistent dimensions. |
|
Grinding - Grinding Machine |
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After forming, the needle is refined using high-precision grinding. Coarse and fine-grinding wheels shape and sharpen the needle. |
Refines the needle's geometry and sharpness for optimal performance. |
Achieves the desired sharpness and smooth finish, ensuring excellent performance and ease of insertion. |
|
Laser Etching - 5-Axis Laser Cutting Machine |
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The needle is engraved with product identifiers and measurement markings using a 5-axis laser cutting machine. |
Etches clear and permanent markings, including lot numbers and measurement scales on the needle. |
Guarantees high precision with tolerances of ±0.01 mm to ±0.001 mm, ensuring clear, permanent, and accurate markings. |
|
Electrolytic Polishing |
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The needle undergoes electrolytic polishing to smooth the surface, remove microscopic imperfections, and enhance corrosion resistance. |
Improves surface smoothness, reduces friction, and enhances the needle's resistance to corrosion. |
Provides a smooth finish that enhances the ease of insertion, while also increasing the needle's durability. |
|
Ultrasonic Cleaning |
![]() |
High-frequency sound waves are used to remove particles and contaminants from the needle's surface. |
Cleans the needle by removing impurities that could compromise patient safety. |
Ensures the needle is free from contaminants, guaranteeing safety and accuracy during procedures. |
|
Inspection & Packing |
![]() |
Each needle undergoes thorough inspection using precision tools to ensure it meets all quality standards. The needles are securely packed in custom-made boxes. |
Verifies the sharpness, flexibility, and dimensional accuracy before packing. |
Ensures the highest quality, with accurate specifications and reliable packaging for safe delivery. |
Why Choose Manners Technology's EUS Based Needle?
At Manners Technology, we prioritize precision manufacturing and cutting-edge technology, dedicated to delivering high-quality, high-performance EUS-based needles to customers around the world. We specialize in offering cost-effective OEM/ODM services to medical device brands, distributors, and healthcare institutions globally, helping our clients excel in a competitive market. Whether you require standard products or tailored solutions, we promise outstanding quality and expert service to meet your needs. Choose us for unmatched precision and dependability!
Advanced Equipment
We are equipped with Citizen L12-1M7 lathes, high-precision grinders, and 5-axis laser cutting machines, ensuring high precision and manufacturing efficiency.
Strict Certifications
Our factory is ISO 9001:2015 and ISO 13485 certified, ensuring our products meet international quality standards.
Customization Services
From needle tip design to packaging, we provide comprehensive customization services to meet our customers' specific needs.
Reliable Delivery
Through our partnerships with top-tier logistics providers, we ensure fast, secure, and reliable delivery tailored to your exact requirements.
Contact Us
If you have any inquiries or need more details about our EUS-based needles, don't hesitate to contact us. Our knowledgeable team is ready to assist with your medical projects and help ensure your success. Let's work together to build a lasting partnership and make a significant contribution to the future of healthcare.
Our address
1606, Tower 4, Namtai Inno Part, FengHuang St., Guangming District, ShenZhen, GuangDong Province, China
Phone Number
+86-755-23699351
zhang@sz-manners.com

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