Ultrasound endoscope tip

Abstract

The top part (21) of the ultrasonic endoscope includes: an ultrasonic vibrator part (60); a circuit board (43), which is electrically connected to the ultrasonic vibrator part (60); a backing member (64), which is used for embedding the circuit board (43) ); a plurality of wires (41a), which are connected to the circuit board (43); the restricting portion (50), which is arranged at a position surrounded by the circuit board (43), the backing member (64) and the holding frame (63); The circuit board side fitting part (43a-43d), which is provided on the circuit board (43); the first restricting part side fitting part (51a), which is provided on the restricting part (60), and is fitted to the circuit board side joint parts (43a-43d); and a fixing part (41b), which maintains the ultrasonic vibrator part (60) and the circuit board (43) by fixing the restricting part (60) to the backing member (64) or the holding frame (63). )the connection between.

Description

technical field [0001] The present invention relates to a distal end portion of an ultrasonic endoscope arranged at the distal end of an insertion portion of an ultrasonic endoscope. Background technique [0002] Ultrasonic diagnostic methods in which an object is irradiated with ultrasonic waves and images of the internal state of the body are imaged based on echo signals are gaining popularity. As one of diagnostic devices used in such ultrasonic diagnostic methods, there is an ultrasonic endoscope system. [0003] In the ultrasonic endoscope of the ultrasonic endoscope system, an ultrasonic vibrator unit is arranged at the distal end of an insertion portion for insertion into the body. The ultrasonic vibrator unit has functions of converting electrical signals into ultrasonic waves and transmitting them into the body, and receiving and converting the ultrasonic waves reflected in the body into electrical signals. [0004] For example, Japanese Unexamined Patent Applicat...

AI Technical Summary

Problems solved by technology

[0006] However, in the wiring layout of conventional ultrasonic endoscopes, the following problems have arisen: the opening of the forceps, the light guide, the imaging unit, the imaging cable (or the image guide) provided at the distal end of the ultrasonic endoscope, etc. ) and other constituent elements in the tip part bring great restrictions, because the design freedom of the tip part is reduced, so the miniaturization of the tip part is hindered

In particular, there is a problem that if a stress is generated in a wiring connection portion of a plurality of wirings, a disconnection or the like occurs, resulting in a failure.

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