Intravesical catheter integrated with stimulating electrode

Abstract

The invention discloses an intravesical catheter integrated with a stimulating electrode. According to the invention, a stimulating electrode unit is bonded in a catheter unit through injection molding and comprises a near-end electrode and a far-end electrode; an electrode wire unit is arranged in a catheter wall interlayer of the catheter unit and is connected with the near-end electrode and thefar-end electrode; a balloon unit comprises a first balloon and a second balloon, the first balloon is pressurized and expanded when the catheter unit is used for catheterization so as to block a urethral orifice to prevent urine from overflowing, the first balloon releases pressure after the urine is guided out, and the second balloon fixes the insertion depth of the catheter unit; and an interface unit comprises a far-end electrode fixed connection end, a balloon pressurizing and pressure-releasing channel port, a catheter urine outflow channel port and a normal saline injection channel port. A stimulation loop formed by the stimulating electrode inserted into a bladder cavity through a catheter and electrodes adhered on a body surface is omitted, and the intravesical catheter is simpler, more convenient, more reliable and more efficient to use; and a double-balloon design ensures that an effective stimulation area of the stimulating electrode is located in the bladder cavity, and the stimulating electrode is prevented from falling off along the urethral orifice.

Description

technical field

[0001] The invention belongs to the field of nerve stimulation, in particular to an intravesical urinary catheter integrating stimulation electrodes. Background technique

[0002] Under Active Bladder (UAB) is a clinical syndrome characterized by low detrusor muscle activity, clinical manifestations include voiding strain, dysuria, slow urine stream, intermittent voiding dribble, prolonged bladder emptying time and / or Or incomplete emptying of the bladder, usually with decreased bladder sensation during the filling phase.

[0003] Patients with UAB may experience recurrent urinary tract infections and upper urinary tract damage, and severe cases may develop chronic renal failure, which is life-threatening. Current treatments for UAB include drug therapy, surgery, and sacral neuromodulation. Reports suggest that drug therapy is somewhat controversial due to low efficacy and widespread adverse effects. Although surgical treatment can effectively improve the ...

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