What Are the Practical Applications of Centerless grinders in the Medical Industry?

Centerless grinding machine is a kind of high-precision grinding equipment, mainly used for processing cylindrical, conical or complex slender workpieces (such as shafts, tubes, guide wires, etc.). Its core feature is that the workpiece does not need a center hole or clamping, but the grinding wheel, regulating wheel and workpiece support are used to realize free rotation grinding.

Centerless grinders usually have two main grinding modes: through-grinding and cut-grinding. Through-grinding is suitable for large-scale continuous production, with high efficiency, and is suitable for long bars, guide wires, slender shafts, etc. Cut-grinding is suitable for complex shape processing, such as short shafts, stepped shafts, tapered guide wires, etc.

Centerless grinders are particularly suitable for processing slender workpieces such as medical guidewires and precision shafts due to their high-precision and high-efficiency grinding characteristics . Their clamp-free feature gives them an irreplaceable advantage in the field of micro-machining (such as cardiovascular guidewires and dental guidewires).

This time we will focus on the main applications of centerless grinders in the medical industry:

1.Tapered guide wire

For minimally invasive surgeries such as cardiovascular and neurointerventional surgeries, the front end of the guide wire needs to be gradually tapered to facilitate entry into the blood vessel. The centerless grinder can accurately control the taper gradient angle to ensure a smooth transition of the guide wire.

2.Forming step guide wire

Guidewires may be designed with step-shaped structures for different surgical needs (such as catheter support or positioning). Centerless grinders can produce high-precision step shapes to ensure dimensional consistency.

3.Curved guidewire (curved guidewire)

Some guidewires require a specific curvature or parabola shape to fit the direction of the blood vessel. CNC centerless grinders can achieve complex curve processing by adjusting the wheel angle and CNC trimming system.

4.Micro-diameter guide wire

Such as nickel-titanium alloy guide wires, stainless steel guide wires, etc., used in minimally invasive surgery. High-precision centerless grinders can stably process ultra-fine guide wires, ensuring roundness (0.001μm)and surface roughness (Ra 0.2μm).

5.Multi-segment composite guidewire

Some guidewires are composed of segments of different diameters or materials (such as a rigid segment at the proximal end and a flexible segment at the distal end). The centerless grinder can grind in segments to ensure a smooth transition zone.

6.Special surface treated guide wire

For example, deburring and polishing, some equipment (such as the GSR-6 deburring machine) can be integrated into the grinding process to improve the surface quality of the guide wire.

7.Dental and neurointervention guidewires

Such as dental root canal guide wires, nerve microcatheter guide wires, etc., require extremely high dimensional accuracy and surface finish .

Recently, Shanghai ANTISHICNC Machinery Equipment received an inquiry from a global medical machinery company. The customer mainly provides vascular interventional devices, orthopedic implants, robots, intracavitary surgery, and ENT products. The customer wants to buy our company’s CNC centerless grinder to make medical guide wires. The customer sent 3 drawings with a diameter of 0.06-0.2mm. After our company’s professional engineers carefully reviewed the drawings, we recommended the customized widened grinding wheel FX-18CNC-3 CNC centerless grinder to the customer. This centerless grinder can grind fine guide wires of 0.05mm and above, fully meeting the customer’s processing needs, and can provide customers with proofing services.

Customer’s workpiece drawing (blurred)

Shanghai ANTISHICNC CNC centerless grinder FX-18CNC-3

The main parameters of the machine are as follows:

If you also have a need for high-precision CNC centerless grinders , please feel free to contact Shanghai Ants. We have professional engineers who can provide you with professional technical support.

Company email: contact@antsmachine.com.

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