Method for automatically finding bone nails and measuring external dimension of bone nails based on inherent characteristics of medical implantable bone nails

Abstract

The invention discloses a method for automatically finding bone nails and measuring external dimension of the bone nails based on inherent characteristics of medical implantable bone nails. The methodcomprises the following steps of step 1: collecting images; and arbitrarily placing the bone nails in batches on a large-field image measuring instrument; step 2: automatically finding the bone nailsby using the inherent characteristics of the bone nails; and using the image binarization to process the collected images; step 3: automatically measuring the outer dimension for a single bone nail;and measuring the thread outer diameter, the small diameter, the head diameter, and the length data of the single bone nail; and step 4: measuring in batches; and executing step 2 while using multi-thread asynchronous, so that external dimensions of all the nails on the image can be quickly measured in batches. The method for automatically finding the bone nails and measuring the external dimension of the bone nails based on the inherent characteristics of the medical implantable bone nails quickly detects the outer dimensions of the medical implantable bone nails in batches, and can be applied to most medical bone nails to solve the technical problems existing in the prior art.

Description

technical field [0001] The invention relates to the technical field of medical implantable bone nails and the field of precision image measurement, in particular to a method for automatically finding and measuring the external dimensions of the medical implantable bone nails based on the inherent characteristics. Background technique [0002] Medical implantable bone nails, also known as fracture fixation screws, are commonly used in clinical orthopedic implants for fixation. Medical implantable bone nails are usually used for the fixation of internal fractures or dislocations. They can be directly screwed into two different bone blocks or internal implants such as fixed bone plates to fix the fracture, position the bone and promote its healing. [0003] The shape of medical implantable bone screws is similar to that of ordinary nails, and they are generally small in size. The lengths, thread diameters, and head diameters of bone screws vary. Because of the special use envi...

AI Technical Summary

Problems solved by technology

[0004] 1. The accuracy of the caliper is not high, and the measurement results are greatly affected by humans;

[0005] 2. The image measuring instrument has high precision, but it needs a special fixture, and the loading and unloading is cumbersome;

[0007] 4. Single measurement is inefficient and cannot meet the needs of modern industrial mass production

Images