3 results about "Human body channel" patented technology

The utility model relates to an endoscope and a tip structure thereof. The tip structure comprises a shell, a camera module, a lighting module and a working channel pipe, the shell is provided with a mounting cavity, and the mounting cavity penetrates through the front end and the rear end of the shell. The camera module is fixed in the mounting cavity, divides the mounting cavity into a working cavity and a lighting cavity which are mutually independent, and is used for acquiring an image of the target area. The illumination assembly is arranged in the illumination cavity and used for illuminating the target area so as to provide a clear view for the camera module. And the working channel tube is arranged in the working cavity in a penetrating manner and is used for perfusing or penetrating a surgical instrument. According to the endoscope and the tip structure thereof, the outer contour size of the tip structure can be effectively reduced, so that the tip structure can penetrate into a human body channel more easily, and harm to a patient is reduced.

Disclosed is an amplification circuit, which includes a first amplifier that receives an external signal and performs first band pass filtering on the external signal to output a first filter signal, and a second amplifier that receives the first filter signal and performs second band pass filtering on the first filter signal to output a second filter signal, and a frequency pass bandwidth of the second band pass filtering is narrower than a frequency pass bandwidth of the first band pass filtering.

Devices included in a wireless neural interface system are disclosed. According to an embodiment, an internal device of a wireless neural interface system that performs communication through a human body channel may include: bio-electrodes including a first electrode, a second electrode, a third electrode, and a fourth electrode that are attached inside a human body; an oversampling converter configured to detect a biosignal on the basis of the first electrode and the second electrode, and output an oversampling signal by oversampling the biosignal; a wireless signal transmitter configured to encode the oversampling signal on the basis of a human body channel characteristic, and transmit the encoded oversampling signal to an external device, which is connected with the internal device through the human channel, through the third electrode; and a wireless power receiver configured to supply power to the oversampling converter and the wireless signal transmitter in response to a power signal received from the external device through the fourth electrode.