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US 4,787,397 AGranted
Hot and cold sensor discrimination unit
AssigneeSmith & Nephew Rolyan, Inc.
InventorsPeer Lindemann, Robert R. Ungemach
Life of this patent
Estimating the term…
Abstract
A hot and cold sensor discrimination unit having an insulated liquid-filled container with a temperature indicator and a metal probe with a temperature indicator for use in perception of temperature by a patient.
Claims11
A diagnostic tool in the form of a kit for perception of temperatures on a sensory surface of the body, comprising:
- an insulated container having a top and containing a liquid of predetermined temperature;
- a cover fastened to the top of said container and forming perforations therethrough;
- at least one probe extending through a perforation in said cover and into the liquid in said container;
- a thermometer extending through another of the perforations of said cover and extending into the liquid of said container for sensing the liquid temperature,
- said probe including a metallic tube having an open top and a closed sensory end,
- means defining an opening extending from the top of the tube to the closed sensory end,
- a thermometer received in said tube opening and extending to the sensory end for sensing temperature of the tube, and a cap on the top of said probe providing a handle for holding said probe.
4 more elements
A diagnostic tool for perception of temperatures, comprising:
- an insulated container having an upper end and receiving a liquid of predetermined temperature;
- a perforated cover on said container;
- a thermometer extending into the liquid in said container for determining the liquid temperature;
- a probe extending through said cover into the liquid of the container, said probe including
- a hollow metallic tube for conduction of heat through said tube,
- said tube defining an opening essentially the length of the tube,
- a thermometer extending into said opening in said tube for sensing the temperature of the probe, and said tube having a closed sensory end for sensing external temperature,
- and an insulating cap embracing an upper end of said tube providing an insulated handle for holding the probe.
5 more elements
A diagnostic tool for perception of temperatures on a sensory surface of the body, comprising:
- a closed insulated container for reception of liquid of a predetermined temperature;
- means defining perforations in an upper portion of said container;
- a thermometer received in a perforation of said container and extending into the liquid of said container for sensing the temperature of the liquid;
- a probe extending through a perforation in said container, said probe including
- a heavy-walled aluminum tube defining a central opening extending essentially the length of said tube and having a closed sensory end,
- said tube providing high heat capacity and good thermo conductivity,
- a thermometer extending into the central opening of said tube and extending to the closed end for indicating the temperature of the probe, and
- an insulated cap embracing an upper end of said probe providing a handle for said probe.
5 more elements
Dependencies are inferred from the claim text.