Patent ID: 11871908
Assignee: WISCONSIN ALUMNI RESEARCH FOUNDATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A disposable speculum for an otoscope comprising:
a funnel-shaped sheath having a central bore sized to receive an elongate cylindrical probe element of the otoscope therein along an axis and having
a distal end sized to fit within an ear canal and
a proximal end providing at least one radially inwardly extending tooth flexible outwardly to allow the at least one radially inwardly extending tooth to releasably engage corresponding grooves of the elongate probe element of the otoscope by an outward movement of the at least one radially inwardly extending tooth,
wherein the at least one radially inwardly extending tooth is spring biased inward to retract against a sloped surface of the otoscope when the speculum is rotated about the axis,
wherein the distal end of the funnel-shaped sheath includes a cylindrical portion joined to a tapered tip, the distal end having an outer diameter of less than 4 mm.