Until recently, losing a limb(肢) or two meant certain death for most animals. Luckily, new technology now enables us to create prostheses(假肢) for animals of all kinds! Thanks to 3D printing, for example, a cat named Dymka got four titanium feet that have given her a new lease on life!
A kind human found Dymka on the side of a road in Novokuznetsk, Siberia. The poor cat had been out in the cold for so long that all four of her feet were destroyed and needed to be cut off. Instead of euthanizing(使安乐死) the animal, a team of veterinarians and researchers from Tomsk Polytechnic University decided to try out some new technology to get Dymka moving again.
First, they took CT scans of Dymka’s legs to create detailed X-rays. Using those scans, they 3D-printed titanium rods (杆)to insert into the cat’s remaining legs. The rods attach to small rubberized feet. Scientists coated the roads with calcium phosphate(磷酸钙), turning them into a “biomaterial” to reduce the risk of infection. This way, the cat’s body can accept the rods as part of herself, rather than feeling a foreign material that could be rejected. It has been two years since Dymka got her new feet, and she is growing well! She can now walk, run, jump, and even manage stairs.
This isn’t the first time that a cat has received this sort of revolutionary treatment. Another Russian cat named Ryzhik was the first to receive new titanium feet after losing her limbs to frostbite. Dymka and Ryzhik actually live together in the medical facility that saved them. These two cats are now the best of friends!
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