Induction Type of Electronic Thermometer Probe Motion Detection Device

• US 20100329305A1
• Filed: 06/30/2009
• Published: 12/30/2010
• Est. Priority Date: 06/30/2009
• Status: Active Grant

• Current Assignee: Edan Instruments, Inc.
• Original Assignee: Edan Instruments, Inc.
• Inventors: Qin, Zhao, Kong, Lingfeng, Sun, Jifan
• Granted Patent: US 8,256,955 B2
• Time in Patent Office: Days
• US Class Current: 374/184
• CPC Class Codes: G01K 1/18 for reducing thermal inertia
• CPC Class Codes: G01K 13/20 Clinical contact thermometers for use with humans or animals
• CPC Class Codes: G01K 2215/00 Details concerning sensor power supply

Abstract

The invention discloses an induction type of electronic thermometer probe motion detection device, including a probe and a probe holder; wherein the probe includes a cavity and a probe tip; Inside the probe tip has a heating mechanism, wherein the probe tip and the heating mechanism electrically connected with the host of the electronic thermometer by wires; Inside the cavity locates a magnetic inductive switch, wherein the magnetic inductive switch communicates with the host of electronic thermometer by wires; A magnetic signal source located in the position of the other side of the probe holder after the placement of the probe, where corresponds to the magnetic inductive switch, and then the magnetic signal source and the magnetic inductive switch composed to the probe motion detection device. When the probe put back to the probe holder, the magnetic inductive switch will induce the magnetic signal source in the probe holder, and the magnetic inductive switch is on the closed mode and communicates with the host of the electronic thermometer by wire, then turns off the pre-heating process; Likewise, when the probe leave the probe holder, the magnetic inductive switch is not able to induce the magnetic signal source, and the magnetic inductive switch is on the open mode and communicates with the host of the electronic thermometer by wire, then initiates the pre-heating process.

Claims

1. An induction type of electronic thermometer probe motion detection device, including a probe and a probe holder;

wherein the probe includes a cavity and a probe tip;

Inside the probe tip has a heating mechanism, wherein the probe tip and the heating mechanism electrically connected with the host of the electronic thermometer by wires;

Inside the cavity locates a magnetic inductive switch, wherein the magnetic inductive switch communicates to the host of electronic thermometer by wires;

A magnetic signal source located in the position of the other side of the probe holder after the placement of the probe, where corresponds to the magnetic inductive switch, and then the magnetic signal source and the magnetic inductive switch composed to the probe motion detection device.

2. In accordance with the induction type of electronic thermometer probe motion detection device described under claim 1 herein and its feature is that the magnetic inductive switch is CMOS magnetic resistance inductive switch, includes MR magnetic resistance element and CMOS switch.

3. In accordance with the induction type of electronic thermometer probe motion detection device described under claim 1 herein and its feature is that the magnetic signal source is magnet.

4. In accordance with the induction type of electronic thermometer probe motion detection device described under claim 1 herein and its feature is that the magnetic signal source is annular magnet.

5. In accordance with the induction type of electronic thermometer probe motion detection device described under claim 3 herein and its feature is that the magnet is in ring structure.