Engraving of ear trumpets and a syringe
Numéro d’image : 11866239
| Ear trumpets. Engraving from the 1790s of ear trumpets and a syringe. These devices were design- ed to relieve deafness. The first ear trumpet design (Fig. 1) is a large,coiled design with a handle. The second ear trumpet (Fig. 2) is a curved design with no handle. The third (Fig. 3) was attached onto the ear with string. Ear trumpets were tubes which worked by amplifying sound as it passed from the wide end to the narrow end. The syringe (at right) was used to remove excessive earwax or an obstacle blocking the ear canal. The syringe directed a jet of warm water into the ear which then dislodged the blockage | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / National Library of Medicine |
| Taille de l’image : | 2283 px × 3446 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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