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

Claim 4:
5. 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 inwardly extending teeth engageable with corresponding grooves of the elongate cylindrical probe element of the otoscope
wherein the inwardly extending teeth include three teeth equally spaced at 120° 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.