Disposable speculum with bonding ring

Details Disposable speculum with bonding ring Disposable speculum with bonding ring

1992-04-13

1994-03-15

Graham, Mark S.

Surgery

Truss

Perineal

128664, 374158, A61B 122, G01K 108

Patent

active

052938620

ABSTRACT:
A sanitary protective cover or sheath for the ear canal probe of a tympanic thermometer. The speculum has a generally tubular body portion and an infrared transparent membrane attached to and sealing the forward end of the body portion. While the tubular body portion is being injection molded of plastic material such as polypropylene or polyethylene, a film of a similar plastic material is mated to the forward end of membrane and is thus severed from the film and one side thereof thermally bonded to the tubular body portion. At the same time a bonding ring of roughly the same diameter as the forward end of the tubular body portion is injection molded. The ring is thermally bonded to the opposite side of the film in alignment with the forward end of the tubular body portion.

REFERENCES:
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Proposed Standards E20-D-148, Clinical Thermometers Probe Covers and Sheaths, ASTM Nov. 28, 1984.
J. W. Moore and R. S. Newbower, "Noncontact Tympanic Thermometer", Medical and Biological Engineering & Computing, Sep. 1978, pp. 580-584.

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