Disposable speculum
First Claim
Patent Images
1. A speculum comprising:
- a generally tubular body portion having forward and rearward ends;
a membrane extending across the forward end of the tubular body portion, the membrane being substantially transparent to infrared radiation;
the tubular body portion and the membrane both being made of a pliant plastic material;
the tubular body portion being injection molded and the membrane being a film bonded to the forward end of the tubular body portion; and
the film membrane being made of a stretchable plastic material and having a thickness chosen to minimize attenuation of infrared radiation passing therethrough yet being capable of withstanding approximately 1.2 PSI without rupturing or unbonding from the tubular body portion.
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Accused Products
Abstract
A sanitary protective cover or sheath for the ear canal probe of a tympanic thermometer has a generally tubular body portion and an infrared transparent membrane attached to and sealing the forward end of the tubular body portion. While the tubular body portion is being injection molded of a plastic material, a film of a similar plastic material is mated to the forward end of the tubular body portion. A portion of the film defining the membrane is thus severed from the film and thermally bonded to the tubular body portion.
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Citations
10 Claims
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1. A speculum comprising:
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a generally tubular body portion having forward and rearward ends; a membrane extending across the forward end of the tubular body portion, the membrane being substantially transparent to infrared radiation; the tubular body portion and the membrane both being made of a pliant plastic material; the tubular body portion being injection molded and the membrane being a film bonded to the forward end of the tubular body portion; and the film membrane being made of a stretchable plastic material and having a thickness chosen to minimize attenuation of infrared radiation passing therethrough yet being capable of withstanding approximately 1.2 PSI without rupturing or unbonding from the tubular body portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification