Stainless Steel Capillary Needle Tip Needle Tip Slot
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Product Details
| Customization: | Available |
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| Type: | Round |
| Standard: | GB |
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Basic Info.
- Model NO.
- 21G
- Composition
- Stainless Steel Scrap
- Technique
- Cold Rolled
- Shape
- Bar
- Surface Treatment
- Polished
- Special Use
- Free Cutting Steel
- Application
- Tool Steel Bar
- Processing
- Shrinking and Slotting
- Appearance
- Electropolishing Passivation
- Secondary Processing
- Scale Sandblasting
- Transport Package
- Cardboard Box or Wooden Crate
- Specification
- 300*300*260
- Trademark
- yue lin sen
- Origin
- Dongguan, China
- HS Code
- 7301200000
- Production Capacity
- 50000pieces/Year
Product Description
Stainless Steel Capillary Needle Tip Needle Tip Slot
Product Description
Product Application:
These are specialized micro-needles designed for applications requiring precise fluid delivery at the tip or enhanced functionality through integrated grooves. They are essential tools in advanced research and delicate medical procedures.
These are specialized micro-needles designed for applications requiring precise fluid delivery at the tip or enhanced functionality through integrated grooves. They are essential tools in advanced research and delicate medical procedures.
Micro-Injection & Cell Manipulation: Intracytoplasmic sperm injection (ICSI) needles for IVF, micro-injection of embryos/oocytes, and single-cell injection or aspiration in biological research.
Micro-Fluidic & Analytical Systems: Nanolitre/picolitre dispensing probes for microarray spotting, micro-sampling needles for capillary electrophoresis or mass spectrometry, and interface needles for lab-on-a-chip devices.
Precision Medical Procedures: Vitreoretinal surgery cannulas with side ports for subretinal fluid drainage/drug delivery, micro-catheters for targeted embolization, and specialized biopsy needles for minute tissue sampling.
Neuroscience Research: Micro-injection cannulas for precise drug delivery into brain nuclei or spinal cord in animal studies.
Product Description:
We manufacture ultra-precision stainless steel capillary needles featuring custom-engineered tip grooves or side ports. These are not standard hollow needles; they are fabricated from fine capillary tubing and modified to include precise openings, slots, or channels at or near the sealed tip. This design allows for directional or radial fluid egress directly at the working end, which is critical for applications where axial flow from a standard open tip is undesirable or less controllable. The tips can be ground to various geometries (tapered, beveled, closed pencil-point) with the groove(s) laser-machined or etched with micron-level accuracy. These needles offer exceptional precision for manipulating volumes, accessing confined spaces, or performing targeted interventions. Made from 304 or 316L stainless steel, they provide the necessary strength, corrosion resistance, and cleanability for sensitive medical and laboratory environments.
Micro-Fluidic & Analytical Systems: Nanolitre/picolitre dispensing probes for microarray spotting, micro-sampling needles for capillary electrophoresis or mass spectrometry, and interface needles for lab-on-a-chip devices.
Precision Medical Procedures: Vitreoretinal surgery cannulas with side ports for subretinal fluid drainage/drug delivery, micro-catheters for targeted embolization, and specialized biopsy needles for minute tissue sampling.
Neuroscience Research: Micro-injection cannulas for precise drug delivery into brain nuclei or spinal cord in animal studies.
Product Description:
We manufacture ultra-precision stainless steel capillary needles featuring custom-engineered tip grooves or side ports. These are not standard hollow needles; they are fabricated from fine capillary tubing and modified to include precise openings, slots, or channels at or near the sealed tip. This design allows for directional or radial fluid egress directly at the working end, which is critical for applications where axial flow from a standard open tip is undesirable or less controllable. The tips can be ground to various geometries (tapered, beveled, closed pencil-point) with the groove(s) laser-machined or etched with micron-level accuracy. These needles offer exceptional precision for manipulating volumes, accessing confined spaces, or performing targeted interventions. Made from 304 or 316L stainless steel, they provide the necessary strength, corrosion resistance, and cleanability for sensitive medical and laboratory environments.
Main Product
Base Material | Tubing Material | 304 or 316L Stainless Steel Capillary Tube. |
Key Properties | High precision ID/OD, smooth internal surface, excellent rigidity for micro-scale applications. | |
Needle Design | Tip Configuration | Closed, solid tip(tapered, pencil-point, beveled) withintegrated side groove(s)/port(s)near the apex. |
Groove/Port Feature | Lateral hole(s), longitudinal slot(s), or spiral channel(s). Function is for fluid egress/injection, not for coring. | |
Primary Function | Precise, localized, and often directional micro-dispensing or micro-aspiration. | |
Dimensions | Outer Diameter (OD) | 50 µm to 500 µm(approx.34G to 21G). Common range: 100-200 µm. |
Inner Diameter (ID) | 25 µm to 300 µm, defining the fluid volume capacity. | |
Wall Thickness | 10 µm to 100 µm, providing structural integrity. | |
Overall Length | 10 mm to 100 mm, customizable. | |
Tip Taper Length/Angle | Customizable. A long, gradual taper provides strength; a short taper maximizes access. | |
Groove/Port Dimensions | Width: 10-100 µm. Length: 50-500 µm.Precise size and position critical to function. | |
Manufacturing & Precision | Tip Formation | Micro-grindingorelectrochemical etchingto form a closed, sharp point. |
Groove/Port Machining | Femtosecond laser machining(for highest precision, minimal thermal damage) ormicro-EDM. | |
Dimensional Tolerance | OD/ID: ±2 µm. Groove position: ±5 µm. | |
Edge Quality | Burr-free, smooth edges on all machined features to prevent cell damage or flow disruption. | |
Surface & Finish | Surface Finish | Internal Electropolishingavailable for optimal flow and cleanliness. External surface can be smoothed. |
Hydrophilicity/Hydrophobicity | Internal or external coatings (e.g., silicone) can be applied for specific fluidic properties. | |
Performance & Quality | Flow Characterization | Laminar flow profile can be modeled and verified. Resistance can be calculated based on dimensions. |
Tip Strength | Resists bending or buckling under typical micro-manipulation forces. | |
Cleanliness & Packaging | Supplied clean (non-sterile) for lab use, or sterilized (EtO/Gamma) for medical use. Packaged to prevent damage. | |
Compliance | For Medical Use | Manufactured under ISO 13485 principles. Biocompatibility (ISO 10993) of base material assured. |
Company Profile
Dongguan Yu Lin Sen Metal Technology Co., Ltd.: Has obtained theGB/T 19001-2016/ISO 9001:2015 quality system certification, as well as the GB/T42061-2022/ISO 13485:2016 medical device quality system certification. Focuses on the research and production of non-standard metal medical device precision parts, mainly as machined metal products. It possesses dozens of high-precision engra-ving lathes and CNCequipment,including CNC numerical control, numerical control centering machine, automatic lathes, turningmilling combined machines, precision laser cutting processing of stainless steel capillary tubes and stainless steel thin-walled tubes for sec-ondary processing. Main materials: stainless steel tubes, stainless steel, copper, aluminum alloy, etc. for non-standard processing and customization. Widely applied in tools, electronics, electrical appliances, medical devices, automotive parts, transportation, and other industries. The company has been recognized by the industry for its "quality-oriented, honest operation" philosophy, mainly providing
non-standard part prototyping and batch production processing, supporting custom drawings and sample customization, etc. The process flow is stable and efficient, integrating industry and trade for rapid delivery, with craftsmanship spirit ensuring quality, without middlemen, excellent value for money, and the company adheres to the business philosophy of "customer first, quality first, striving for excellence, win-win cooperation", "Confident and reliable after-sales guarantee!!!".
non-standard part prototyping and batch production processing, supporting custom drawings and sample customization, etc. The process flow is stable and efficient, integrating industry and trade for rapid delivery, with craftsmanship spirit ensuring quality, without middlemen, excellent value for money, and the company adheres to the business philosophy of "customer first, quality first, striving for excellence, win-win cooperation", "Confident and reliable after-sales guarantee!!!".
Product Advantage
It has obtained the quality system certification in accordance with GB/T 19001-2016/ISO 9001:2015, as well as the medical device quality system certification in accordance withGB/T 42061-2022/ISO13485:2016. We focus on processing and customizing products for medical device hardware, and we have dozens of precision CNC lathes and precision laser cutting processing equipment. We also have a R&D team composed of senior engineers and technicians. We are committed to providing customers with high-quality and
high-precision processing and customization services for hardware parts, ensuring that each product meets the strict standards and requirements of the medical device industry. Through continuous optimization of production processes and improvement of technical levels, we can meet the diverse needs of customers and contribute to the development of the medical device industry.
high-precision processing and customization services for hardware parts, ensuring that each product meets the strict standards and requirements of the medical device industry. Through continuous optimization of production processes and improvement of technical levels, we can meet the diverse needs of customers and contribute to the development of the medical device industry.
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