Transurethral filtering screen expansion device for ejaculatory duct obstruction

Abstract

The invention discloses a transurethral filtering screen expansion device for ejaculatory duct obstruction, wherein the transurethral filtering screen expansion device comprises a spermatophore exploring tube capable of being inserted into an ejaculatory duct, wherein an isolation plate extending in the axial direction is arranged in the spermatophore exploring tube; the isolation plate separates an inner cavity of the spermatophore exploring tube into an observation cavity and an expansion rod accommodating cavity; the front end of the observation cavity is provided with a high-light-transmission objective lens; the high-light-transmission objective lens is externally connected with a central processing unit through a visible optical fiber; a display is arranged on the central processing unit; images shot by the high-light-transmission objective lens can be displayed on the display; the transurethral filtering screen expansion device also comprises an expansion rod; the front end of the expansion rod is sleeved by an elastic filtering screen; the expansion rod can be inserted into the expansion rod accommodating cavity and can axially slide in the expansion rod accommodating cavity; when the elastic filtering screen is arranged in the expansion rod accommodating cavity, the state is a compression state; when the elastic filtering screen extends out from the expansion rod accommodating cavity, the elastic filtering screen expands; the outer diameter is enlarged.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a transurethral filter expansion device for ejaculatory duct obstruction. Background technique [0002] Ejaculatory duct obstruction is the obstruction of the distal testis of the seminal tract. The etiology is congenital and acquired. The obstructive infertility caused by it accounts for about 1%-5% of male infertility. The main clinical symptoms are painful ejaculation, hematospermia, scrotum pain, perineal discomfort, chronic pelvic pain, weak ejaculation, low semen volume, and abnormal urethral opening. A small number of patients may be combined with epididymitis or seminal vesiculitis. However, there are obvious defects in traditional transurethral ejaculatory duct incision. This operation often needs to use electrocution and electrocution of seminal caruncle. During the operation, it is necessary to grasp the depth and range of electrocution, and at the same time ob...

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