| Products Name : | SHOMEA Customized Pin-Tailed Needle |
| Material: | Stainless Steel, Brass, Aluminum, brass, copper ,etc |
| Surface treatment : | Sandblasting, polishing, knurling, laser marking, etc |
| Tube Outer Diameter : | 0.25-15mm |
| Tube wall Thickness : | 0.05-3mm |
| meta Base | Male and Female thread |
| Tolerance : | OD/ID±0.02mm L±0.05mm or According to Drawing |
| Size: | 3G-32G or Customized |
| LOGO | Can be customized according to your drawing |
| Samples: | Usually provide 5-10pcs samples for testing before mass production |
| Delivery Time: | usually 5-25days or according to quantity |
• Tail pin positioning design, chieve zero-offset rigid fixation
• Slightly sharpened needle tip and smooth needle body, optimize
puncture efficiency and delivery smoothness
• Medical-grade high-hardness stainless steel, safe and stable
FAQs:
Q: How are the dimensional tolerances of the pin controlled? Can
you guarantee a perfect fit with our handle/base?
A: We utilize high-precision centerless grinders or micro-machining centers to manufacture the pins, controlling the diameter tolerance
within ±0.005mm (5μm) while ensuring high cylindricity and roundness. Prior to mass production, we can conduct Trial Fits with the client, and fine-tune the tolerance bands based on the
material of the client's base (e.g., plastic, metal) to achieve an
ideal "push-to-lock" fit state, eliminating the need for secondary machining by the
client.
Q: In which medical scenarios is this pin-tailed needle mainly
used?
A: It is primarily used in minimally invasive interventional devices requiring extremely high
operational precision and repeatable positioning accuracy. Typical scenarios include: firing and retraction mechanisms of biopsy needles, fixation of
micro-incision blade tips in ophthalmic or microsurgery, proximal
anchor points for neurointervention guidewires, and core moving components in automated cell sampling or micro-pipetting devices.
Q: What is the connection strength between the pin and the needle
tube? Is there a risk of loosening or detachment during operation?
A: The pin and needle tube utilize an integral forming process (e.g., precision turning) or high-strength
laser welding/brazing. The connection point undergoes stress relief treatment and incorporates a structural interlocking design (e.g., a slotted engagement at the tail of the needle tube
encasing the pin), giving it tensile and shear strength comparable to the needle body itself. Within the scope of normal medical operations, there is
absolutely no risk of loosening or detachment, meeting the
stringent requirements for long-term reliability in medical devices.
Q: If our instrument structure is unique, can we customize the
shape, length of the pin, or the needle tip angle?
A: Yes, we specialize in non-standard customization. The pin can be a cylindrical pin, tapered pin, or custom-profile pin, and can even feature flats, retaining grooves, or threads. Additionally, the needle tip angle (e.g., 15°, 30°, 45°), total
tube length, and surface coatings (e.g., hydrophilic coating) can
be developed and prototyped one-on-one based on your engineering drawings or samples, with functional verification prototypes available in as little as
one week.
