Temporal thermometer disposable cap

• US 20020068876A1
• Filed: 09/20/2001
• Published: 06/06/2002
• Est. Priority Date: 11/24/1999
• Status: Active Grant

• Current Assignee: Exergen Corporation
• Original Assignee: Exergen Corporation
• Inventors: Pompei, Francesco, Pompei, Marybeth A.
• Granted Patent: US 6,932,775 B2
• Time in Patent Office: Days
• US Class Current: 600/549
• CPC Class Codes: G01J 5/0022 for sensing the radiation of moving bodies
• CPC Class Codes: G01J 5/0025 Living bodies ear thermometers G01J5/0011; detecting, measuring or recording for diagnostic purposes A61B5/00
• CPC Class Codes: G01J 5/02 Constructional details
• CPC Class Codes: G01J 5/021 Probe covers for thermometers, e.g. tympanic thermometers; Containers for probe covers; Disposable probes
• CPC Class Codes: G01J 5/025 Interfacing a pyrometer to an external device or network; User interface
• CPC Class Codes: G01J 5/026 Control of working procedures of a pyrometer, other than calibration; Bandwidth calculation; Gain control
• CPC Class Codes: G01J 5/04 Casings
• CPC Class Codes: G01J 5/046 Materials; Selection of thermal materials
• CPC Class Codes: G01J 5/05 Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
• CPC Class Codes: G01J 5/07 Arrangements for adjusting the solid angle of collected radiation, e.g. adjusting or orienting field of view, tracking position or encoding angular position optical collimating elements G01J5/0806
• CPC Class Codes: G01J 5/08 Optical arrangements

Abstract

A disposable cap for a body temperature detector includes a body having a viewing end and a retaining end. The retaining end includes an inward protrusion that expands over a wider portion of an end of the detector and contracts after the retaining end has passed over the wider portion to snugly secure the cap on the detector. The cap further includes a flange with an aperture therethrough adjacent the viewing end to permit a radiation sensor of the detector to view a target surface. Preferably, the cap is sufficiently large so as to not be insertable into an ear of a human. The cap is formed from a sheet of material, preferably by thermoforming, from a material such as polypropylene, polyethylene, polystyrene, or other similar material which has relatively low hardness and low thermal conductivity properties. The cap has a generally uniform thickness of about 0.020 inch.

Claims

1. A disposable cap for a body temperature detector comprising a body having a viewing end and a retaining end, the retaining end including an inward protrusion that expands over a wider portion of an end of the detector and contracts after the retaining end has passed over the wider portion to snugly secure the cap on the detector, the cap further including a flange with an aperture therethrough adjacent the viewing end to permit a radiation sensor of the detector to view a target surface, the cap being formed from a sheet of material.

2. The cap of claim 1, wherein the inward protrusion includes at least one dimple.

3. The cap of claim 1, wherein the cap snap-fits onto a sensor assembly of the detector.

4. The cap of claim 1, wherein the cap further includes an outwardly protruding annular lip to allow an operator to remove the cap from the detector.

5. The cap of claim 4, wherein the lip is adjacent the retaining end.

6. The cap of claim 1, wherein the cap includes a general uniform thickness of about 0.020 inch.

7. The cap of claim 1, wherein the cap is formed from polypropylene.

8. The cap of claim 1, wherein the cap is formed from polyethylene.

9. The cap of claim 1, wherein the cap is formed from polystyrene.

10. The cap of claim 1, wherein the cap is formed from the sheet of material by thermoforming.

11. The cap of claim 1, wherein the flange aperture has a diameter of between about 0.375 and 1 inches.

12. The cap of claim 11, wherein the flange aperture is about 0.5 inch.

13. The cap of claim 1, wherein the flange has an outside diameter of about 1.0 inch adjacent the viewing end.

14. The cap of claim 1, wherein the cap is sufficiently large so as to not be insertable into an ear of a human.

15. The cap of claim 1, wherein the flange includes an inside surface and an outside surface and a radius of curvature adjacent the viewing end such that an outer periphery of the inside surface of the flange contacts the terminal end of the detector to provide an air gap between the terminal end of the detector and the flange.

16. The cap of claim 15, wherein the radius of curvature is about 0.1 inch.

18. The cap of claim 17, wherein the flange aperture is about 0.5 inch.

19. The cap of claim 17, wherein the length of the cap is at least about 0.375 inch.

20. The cap of claim 17, wherein the length of the cap is at least about 0.75 inch.

17. A disposable cap for a body temperature detector comprising a body having a viewing end and a retaining end, the cap including a flange with an aperture therethrough adjacent the viewing end to permit a radiation sensor of the detector to view a target surface, the aperture having a diameter of between about 0.375 and 1 inches.

21. A disposable cap for a body temperature detector comprising a body having a viewing end and a retaining end, the cap including a flange with an aperture therethrough adjacent the viewing end to permit a radiation sensor of the detector to view a target surface, the flange having at least about 0.2 square inches of surface area which contacts the body during temperature detection.

22. The cap of claim 21, wherein the flange has at least about 0.4 square inches of surface area which contacts the body during temperature detection.

23. The cap of claim 21, wherein the aperture has a diameter of between about 0.375 and 1 inches.

24. The cap of claim 21, wherein the flange aperture is about 0.5 inch.