Method to Control the Work of Electronic Thermometer by Using the Position of Probe and the Apparatus Composed of

• US 20100329303A1
• 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: Yu, Zhidong, Qin, Zhao, Kong, Lingfeng
• Granted Patent: US 8,562,209 B2
• Time in Patent Office: Days
• US Class Current: 374/164
• CPC Class Codes: G01K 13/20 Clinical contact thermometers for use with humans or animals
• CPC Class Codes: G01K 13/25 Protective devices therefor, e.g. sleeves preventing contamination

Abstract

The invention discloses a method to control the work of electronic thermometer by using the position of probe. The probe incased in a disposable sheath, wherein the pre-heating mechanism in the probe and the control switch is connected with the host of the electronic thermometer by wires; and by using the axial reciprocating motion of the probe to trigger the control switch to initiate the electronic thermometer. When using the invention, we use the movement for the assembling of the sheath to initiate the hearting process and measurement, to ensure that the disposable sheath is assembled on the probe, and then execute the measurement, so as to eliminate the possibility of cross infection completely. The invention also exempts the requirement for the users to the return back of the probe into the cavity after use, and brings convenience for the users: Meanwhile, the equipment structure is simple, and the machinery assembles are few by comparison, which effectively decrease the production cost.

Claims

1. A method for controlling the work of electronic thermometer by using the position of probe, including a probe unit, a host linked with the probe unit, and inside the probe unit located a probe which is able to move in an axial reciprocation motion along the probe unit;

and its feature is that by using the axial reciprocating motion of the probe which incased in a disposable sheath to trigger the control switch to control electronic thermometer to work.

2. An electronic thermometer, including a host and a probe unit;

wherein the probe unit includes a cavity and a probe;

The probe with one end located inside the cavity which is able to move in axial reciprocating motion;

wherein the probe has a first location that extends the longest from the cavity, and a second location that extends the shortest from the cavity; and

its feature is that in the probe has a pre-heating mechanism and a control switch, and the pre-heating mechanism that connected with the probe and the control switch is connected with the host of the electronic thermometer by wires, and the reciprocating motion of the probe triggers the control switch to control electronic thermometer to work.

3. In accordance with the electronic thermometer described under claim 2 herein and its feature is that the control mechanism that controls the reciprocation motion of the probe, including the first spacing baffle that located inside the cavity and fixed on the probe, and the second spacing baffle that fixed inside die cavity;

between the first spacing baffle and the second spacing baffle locates a spring with the same axis of the probe. A linkage button with the probe is located in the cavity in accordance with the rear end of the probe.

4. In accordance with the electronic thermometer described under claim 2 herein and its feature is that the pre-heating mechanism includes a healing resistance located inside the probe, wherein the heating resistance connected with the host of the electronic thermometer by wires and controlled by the host.

5. In accordance with the electronic thermometer described under claim 2 herein and its feature is that the control switch is mechanical switch, including a breakback contact located in the cavity and a moving contact located in the probe or the first placing baffle when the probe on the second location that corresponds to the location of the breakback contact;

and the closure or the departure between the breakback contact and the moving contact control the pre-heating mechanism to open or close.

6. In accordance with the electronic thermometer described under claim 2 herein and its feature is that the control switch is keyswitch, which is located in the inner side of the front hatch of the cavity and in accordance with the first spacing baffle;

when the first spacing baffle is in the first location and will press the keyswitch, then the pre-heating mechanism is on the off mode, while when the first spacing baffle is in the second location and will release the keyswitch, then the pre-heating mechanism is on mode.

7. In accordance with the electronic thermometer described under claim 2 herein and its feature is that the control switch is reluctance switch, wherein the inductive switch of the switch is fixed inside the cavity;

the magnet is located in the probe or the first spacing baffle when the probe is on the second location that in accordance with the location of the inductive switch in the cavity.

8. In accordance with the electronic thermometer described under claim 3 herein and its feature is that the location device of the disposable sheath in the front end of the cavity, including a convex which extends in an axial direction along with the probe from the front end of cavity and in accordance with the disposable sheath;

the friction force generated by the accordance of the convex and the disposable sheath is greater than the elastic force of the spring.