Sacral-nerve stimulator adjusting electric field direction

Abstract

The invention relates to the field of implantable nerve stimulators, and particularly discloses a sacral-nerve stimulator adjusting the electric field direction. The sacral-nerve stimulator comprises an external program controller, an implantable pulse generator and a sectional stimulating electrode. The sectional stimulating electrode comprises multiple electrode segments capable of adjusting the electric field direction; the implantable pulse generator also comprises an electric field intensity sensor, the electric field intensity sensor is arranged at a target nerve, the electric field intensity sensor monitors the electric field intensity generated by the sectional stimulating electrode, and the electric field intensity sensor sends the monitored data to the implantable pulse generator or the external program controller; the monitored data comprises the first electric field intensity measured at the first position and the second electric field intensity measured at the second position. When the sacral-nerve stimulator adjusting the electric field direction is used, the electric-field applying direction of the sectional electrode can be rapidly adjusted to accurately stimulate target nervous tissue.

Description

technical field [0001] The invention relates to an implanted nerve stimulator, in particular to an implanted nerve stimulator capable of adjusting the direction of an electric field. Background technique [0002] Urinary incontinence, the inability to maintain voluntary control of urination, is a condition that affects millions of men and women worldwide. Control of voiding is a complex physiological process that includes neural reflex pathways, some with central nervous system control, smooth and voluntary muscles, and hormonal action and some without. A large proportion of urinary incontinence is at least partially neurogenic. The clinical term "overactive bladder" is generally used to refer to any form of incontinence characterized by complete or occasional increased frequency or urgency to urinate and in which loss of voluntary control ranges from partial to complete. "Urge urinary incontinence" is the involuntary loss of urine associated with a sudden and intense urge...

AI Technical Summary

Problems solved by technology

However, in addition to the aforementioned loss of sexual function, SARS often resulted in very high bladder pressure, which may cause short-term vesicoureteral reflux and long-term association with renal failure

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