FIELD

The disclosure relates to a monitoring device, and more particularly to a physiological signal monitoring device.

BACKGROUND

Continuous glucose monitoring (CGM) is a popular method for tracking changes in glucose levels by taking glucose measurements of an individual at regular intervals. In order to utilize a CGM system, the individual wears a form of compact, miniature sensing device.

Referring toFIG. 45, a conventional sensing device900disclosed in U.S. Pat. No. 7,899,511 includes a mounting unit92, an adhesive base91that is adapted for adhering the mounting unit92onto a host's skin (not shown), a biosensor93that is mounted in the mounting unit92, and a transmitter94that is mounted to the mounting unit92and that is connected to the biosensor93. The biosensor93is inserted beneath the host's skin for measuring a physiological signal corresponding to the glucose concentration level, and the transmitter94receives the physiological signal from the biosensor93and forwards the physiological signal to an external device (not shown).

Due to the intrusive nature of the sensing device900, the host's body may become hypersensitive to the biosensor93, and in turn develops a severe allergic reaction. As such, the biosensor93has to be replaced on a weekly or bi-weekly basis. In comparison, as the transmitter94is relatively expensive, when the biosensor93is to be replaced, the transmitter94is usually disengaged from the mounting unit92for next uses. However, in order to implement a coupling mechanism, such as the coupling lock921shown inFIG. 45, that cannot easily disengage the transmitter94from the mounting unit92, the sensing device900is required to have a relatively high thickness, thereby making the sensing device900rather bulky. While another type of coupling mechanism disengages the transmitter from the mounting unit via rotation without requiring a high minimum thickness, the structure of such coupling mechanism is too complicated to manufacture, and is more difficult to operate.

SUMMARY

Therefore, an object of the disclosure is to provide a physiological signal monitoring device that can alleviate the drawbacks of the prior arts.

According to one aspect of the disclosure, the physiological signal monitoring device includes a base, a biosensor and a transmitter. The base includes a base body and at least one first coupling structure. The base body is flexible and has a bottom plate adapted to be mounted to a skin surface of a host. The first coupling structure is disposed on a top surface of the bottom plate. The biosensor is mounted to the base and is adapted to measure at least one analytical substance of the host and to send a physiological signal corresponding to the analytical substance. The transmitter is removably mounted to the base body, is connected to the biosensor, and is for receiving and transmitting the physiological signal. The transmitter includes a bottom casing (31) facing the top surface of the bottom plate of the base body, and at least one second coupling structure disposed on the bottom casing and corresponding in position to the at least one first coupling structure of the base. The first and second coupling structures are coupled to each other when the transmitter is mounted to the base body of the base, and are uncoupled from each other when an external force is applied on a periphery of the base body to bend the bottom plate by the flexibility of the base body. The first and second coupling structures are disposed to be distal from a periphery cooperatively defined by the base and the transmitter when the first and second coupling structures are coupled to each other.

According to another aspect of the disclosure, the physiological signal monitoring device includes a base, a biosensor and a transmitter. The base includes a base body and at least one first coupling structure. The base body has a bottom plate that is adapted to be mounted to a skin surface of a host, and a surrounding wall that extends upwardly from a periphery of the bottom plate. The height of the surrounding wall of the base body measured from a top surface of the bottom plate is not uniform so that the base body is flexible. The first coupling structure is disposed on the top surface of the bottom plate. The biosensor is mounted to the base, and is adapted to measure at least one analytical substance of the host and to send a physiological signal corresponding to the analytical substance. The transmitter is removably mounted to the base body, is coupled to the biosensor, and is for receiving and transmitting the physiological signal. The transmitter includes a bottom casing facing the top surface of the bottom plate of the base body, and at least one second coupling structure disposed on the bottom casing and corresponding in position to the at least one first coupling structure of the base. The first and second coupling structures are coupled to each other when the transmitter is mounted to the base body of the base, and are uncoupled from each other when an external force is applied on a periphery of the base body to bend the bottom plate by the flexibility of the surrounding wall. The first and second coupling structures are disposed to be distal from a periphery cooperatively defined by the base and the transmitter when the first and second coupling structures are coupled to each other.

