Biopsy forceps of flexible ureteroscope

Abstract

The invention discloses a pair of biopsy forceps of a flexible ureteroscope. The pair of biopsy forceps comprises a telescopic rod and a handle which movably sleeves outside the telescopic rod in an axial direction, and the telescopic rod is greater than the handle in axial length; a grip is arranged at one end of the handle, and the end of the telescopic rod, at a corresponding side, is provided with a pull ring; an elastic part, by which the grip and the pull ring approach to a tightened state, are assembled between the grip and the pull ring; a metal net bag, which is woven by metal wires, is assembled between the other end of the handle and the telescopic rod at the corresponding side; in-vivo samples can be collected through bending and shrinking of the metal net bag; and furthermore, through high-frequency electricity, in the coordination with the metal net bag, the in-vivo tissue samples can be removed and collected.

Description

Technical field:

[0001] The invention belongs to the technical field of medical devices, in particular to a flexible ureteroscope biopsy forceps. Background technique:

[0002] The flexible ureteroscope can easily enter the upper ureter and renal pelvis, which are difficult to reach with the rigid ureteroscope, to realize the exploration of this part, and to complete the diagnosis and treatment of diseases such as stones and tumors. The lithotripsy tools under the soft microscope mainly include electrohydraulic lithotripsy (EHL), pulsed dye laser and holmium laser, and the lithotripsy effect is acceptable. However, for suspected tumors, soft mirrors can only achieve empirical diagnosis through naked eye observation, but it is difficult to cut ideal biopsy specimens to complete pathological diagnosis, resulting in the embarrassing situation of "hard mirrors can't reach, soft mirrors can't get it".

[0003] The information disclosed in this Background section is only for enha...

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