SLS 3D Printing Develops Precision Pet Ear Endoscope Probes

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Research from Harvard shows that auditory input accounts for 11% of the information humans process, highlighting the importance of the ear as a sensory organ. Just as humans need ear endoscopies for inflammation or damage to the ear canal or eardrum, pets often require similar care. Cats and dogs are particularly prone to ear conditions, making regular ear check-ups increasingly common in veterinary practice.

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Integrated pet otoscope

Challenges in Pet Ear Endoscopy

While traditional ear endoscopes for pets use similar principles to human devices, the wide variety of pet breeds presents challenges:

  • Different breeds and sizes require differently sized earpiece probes.

  • Standard probe sets often fail to meet all clinical needs.

  • Replacement probes are difficult to source commercially.

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Different sizes of probes made by traditional processes

To address these gaps, Black Flame Medical, a leading domestic digital medical solutions provider, is leveraging SLS 3D printing technology to develop custom pet ear endoscope probes.

Why SLS 3D Printing is Ideal for Pet Probes

Pet ear endoscope probes require:

  • High precision in shape and dimensions

  • Light-shielding properties to prevent light loss

  • Mechanical strength and wear resistance for repeated installation

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3D models of pet ear probes ready for printing

FDM and SLA technologies struggle to balance these requirements, but Selective Laser Sintering (SLS) excels in producing highly precise, durable components with complex geometries.

Material Selection

TPM3D engineers recommend using Precidim1172Pro GF30 BLK polymer powder, a 30% glass-reinforced Nylon 12 material, for these probes. This material provides:

  • High dimensional accuracy (within ±0.1mm)

  • Strong mechanical properties and wear resistance

  • High reuse rate of powder, making it cost-effective for mass production

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Partial probe printed using TPM3D PA12 powder

Successful Prototype Testing

The SLS-printed probes demonstrated excellent performance:

  • Accurate fit with handheld electronic otoscopes

  • Strong bayonet connections for repeated assembly

  • Reliable mechanical strength during installation and disassembly

On-site tests by Black Flame Medical confirmed the suitability of the probes, and rapid iterations are underway to finalize the product.

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Test results of several sets of SLS printed probes

Future Prospects

Once finalized, these SLS 3D printed pet ear endoscope probes will move into mass production, providing veterinary clinics with high-precision, durable, and customizable solutions. This innovation promises to improve diagnosis and treatment for pets, helping more animals recover quickly and safely.

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The electronic otoscope installed with an SLS 3D printed probe

Picture of Jason Wang

Jason Wang

With over 8 years of experience in additive manufacturing, Jason specializes in SLS 3D printing applications across medical, automotive, and consumer product sectors. He has supported dozens of companies in optimizing their production workflows and selecting the right materials for demanding use cases.

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