Medical Devices; Ear, Nose, and Throat Devices; Classification of the Active Implantable Bone Conduction Hearing

    Federal Register
    |October 27, 2018
    PubMed

    Related Concept Videos

    Hearing01:31

    Hearing

    When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
    57.2K
    Classification of Bones01:18

    Classification of Bones

    The bones of the human skeletal system are of varied shapes, sizes, and functions. They can be classified based on their shape and function into four major classes: long bones, short bones, flat bones, and irregular bones. Some classifications include a fifth type, the sesamoid bones, as a separate class, whereas others categorize them under short bones.
    Long and Short Bones
    The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The...
    9.9K
    Non-ohmic Devices00:51

    Non-ohmic Devices

    In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
    Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
    1.5K
    Mnemonic Devices01:23

    Mnemonic Devices

    Mnemonic devices are cognitive tools that facilitate memory retention by linking new information to familiar patterns or organizational strategies. These techniques are beneficial for remembering complex or lengthy sets of information by simplifying and structuring them in easily retrievable ways.
    Acronyms
    Acronyms are created by using the initial letters of a series of words to form a new word or phrase. This approach condenses complex information into a single, memorable entity. For example,...
    432
    Nose and Nasal Cavity01:24

    Nose and Nasal Cavity

    The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...
    11.8K
    Anatomy of the Ear01:16

    Anatomy of the Ear

    Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
    11.8K