sphincter

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sphincter

Anatomy a ring of muscle surrounding the opening of a hollow organ or body and contracting to close it

Sphincter

 

a ringlike muscle that constricts to close a natural orifice such as the oral or anal opening, or to narrow the passage from one part of a hollow tubular organ to another, for example, from the stomach and bile duct to the duodenum and from the bladder to the urethra. The sphincter is always in a tonic state. The orbicular muscle of the iris is a sphincter. Some sphincters consist of striated muscle and others of smooth muscle innervated by the autonomic nervous system.

sphincter

[′sfiŋk·tər]
(anatomy)
A muscle that surrounds and functions to close an orifice.
References in periodicals archive ?
The outcome of artificial urinary sphincter placement after a mean 15-year follow-up in a paediatric population.
Post-prostatectomy incontinence and the artificial urinary sphincter: a long-term study of patient satisfaction and criteria for success.
Postprostatectomy urinary incontinence: the case for artificial urinary sphincter implantation.
Long-term device outcomes of artificial urinary sphincter reimplantation following prior explantation for erosion or infection.
Patient demographics Group 1 Group 2 p value N 36 82 -- Mean age (years) (range) 67 (52-82) 67 (50-82) 0.980 Cuff size (%) 3.5 cm 0 1 0.001 4.0 cm 5 39 4.5 cm 26 40 5.0 cm 5 2 Prostatectomy alone (%) 23 (64) 56 (68) 0.640 Prostatectomy + RT (%) 13 (36) 26 (32) Previous incontinence surgery (%) None 33 (92) 76 (93) 0.749 Sling 1 (3) 3 (4) AUS 2 (6) 2 (2) ProACT 0 (0) 1 (1) RT: radiation therapy; AUS: artificial urinary sphincter. Table 2.
Quality of life and continence assessment of the artificial urinary sphincter in men with minimum 3.5 years of followup.
Long-term durability and functional outcomes among patients with artificial urinary sphincters: a 10-year retrospective review from the University of Michigan.
1.: Axial and coronal computed tomography images of the pelvis demonstrating loculated perineal and scrotal fluid collections, as well as the previously placed artificial urinary sphincter. [Figure omitted]
Vast majority of foreign bodies are from iatrogenic interventions (slings, tvt, IUCD, vaginal pessaries, contraceptive diaphragms, eroded silk following radical prostatectomy, intra prostatic stents, eroded penile prosthesis, artificial urinary sphincters, and long term urinary drainage etc.
Obstructive procedures can be done surgically to increase intra-urethral pressure passively or actively, including retropubic, mid-urethral slings, bulking agents or artificial urinary sphincters.
Her first articles were on penile prostheses (2002) and artificial urinary sphincters (2003).
Lot 2 Male Incontinence Products (artificial urinary sphincters and male slings).