Straight Line Cutting Tube

A different technique to creating a flexible devices is to use straight "I" lines that run partially around the circumference. This creates a device, that has less flexibility than a pure spiral, but has better pushability and torquability.

The use of "I" lines, allows the creation of devices that flex in one plane only. To get flexibility in multiple planes the straight lines are rotated around the device. In most applications a 90deg rotation is sufficient, however more can be added ifrequired.

The downside to this "I" design is that the stainless steel is prone to forming cracks under multiple flexes. Cracks occur at the tips of the "I" lines, where the stress is highest.

To combat the cracking and failure of the device, "I" shaped cuts, as in the image on the left, are used to replace the simple "I" shape.

This spreads out the load and produces a device that is longer lasting. The downside being in an increase the length of time to manufacture and hence cost of production.

If you have any questions, please contact us. Our company can produce various customized medical parts, medical needles, puncture needles, hypodermic needles, biopsy needles, vaccine needles, injection needles, abdominal puncture needle, hypotube with laser cut, syringe needles, pleural puncture needle, veterinary needles, pencil point needle, ovum pick up needles, spinal needles, etc. If you need customized needle products, please contact us. We look forward to your inquiry! The quality of the products manufactured in our factory will surely satisfy you!

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