WimbaSCAN vs Plaster Casting Method - Case Study

SAMPLE

Carpus Orthosis: 53 dogs of different breeds took part in the tests.

PURPOSE

Our goal was to create a lightweight orthosis, specifically designed to fit the shape of the dog's leg, by utilizing our proprietary measurement methods and 3D printing technology.

METHODS

We have obtained 3D models of dogs' limbs by employing our in-house software - WimbaScan, which utilizes photogrammetry for 3D acquisition. To overcome the challenge of hair disrupting the Iimb's dimensions, we developed a special pattern applied to a material that adheres to the limb. Using this method, a short video of the limb is recorded with a regular smartphone and then sent to our server for further analysis. The video data is then utilized to generate a precise 3D model.

COMPARISON OF MEASUREMENT COLLECTION METHODS

The traditional method of creating a plaster cast typically takes around an hour, depending on factors such as the dog's behavior, the size of the limb, and the skill of the person taking the measurements. It consists of 9 main steps (see graph below):

The method of scanning the limb on the special WimbaScan calbration mat involves only six fairly simple steps (see graph below):



WimbaScan is a scanning method that takes 4-5 minutes to capture a very accurate 3D model of the scanned limb. Scanning time depends mainly on the behavior of the dog and the skill of the measure taker.

CORRECT AND NEGATIVE ATTEMPTS AND HOW WE DEALT WITH ERRORS

The study involved 69 dogs, out of which 66 had correct measurements. Among the remaining three, two failed attempts were attributed to abnormalities in the scans caused by poor lighting conditions in the room. In one instance, both the video and measurements were of poor quality. To address these issues, measurements were re-collected from these three dogs, ensuring proper Iighting conditions and paying closer attention to the measurement process. The final step in the process is to design the orthosis using the collected measurements. This ensures that the orthosis fits the individual comfortably and provides the necessary support. The orthoses were then 3D printed to create a custom-made device that meets the specific needs of the dog.

TESTIMONIALS