Tolerance setting for medical CNC

In addition to selecting the most appropriate (and cost-effective) grade of tubing for a medical device, the end goal must be carefully considered when specifying tubing tolerances.

Does your medical device catheter need to be used as a simple catheter to move liquids, gases, or other materials? Or must the tube fulfill a need-specific measurement function, such as delivering drugs or distributing samples for testing?

If (as shown in the first example) precision is not a factor in the material's flow through the medical device pipeline, very strict tolerances may not need to be specified.

However, it may be necessary to precisely size the stainless steel pipe to ensure that the pipe fits any necessary connections and equipment. In addition, the size of the catheter of a medical device affects the flow rate of any fluid that must pass through the catheter.

Does end-use require high precision?

In other words, specific medical device tubing applications may require strict tolerances based on various characteristics, where accuracy is required.

For example, for stents to be inserted and then inflated in microarteries, the alloys that can be used are selected based on the material's shape memory properties and biocompatibility - and the surface of the stent may need to be specified with uniform grain size.

To use stainless steel tubes for brachytherapy, including radioactive implants inserted directly into tissue to treat cancers such as prostate cancer, the tube walls must be precise in order to deliver the exact amount of radiation.

Pride processing products in Europe and the United States, Japan and South Korea, the Middle East, Southeast Asia are widely praised.

Please contact us at zhang@pride-cnc.com