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Indwelling catheters/IDCs should be used only when indicated, as use increases the risk of catheter-associated urinary tract infection (UTI) and other adverse effects. [1] While female sex is generally recognised as a risk factor for UTIs, the differences in biological sex are reduced while carrying catheters.
Catheters come in several basic designs: [1] A Foley catheter (indwelling urinary catheter) is retained by means of a balloon at the tip that is inflated with sterile water. The balloons typically come in two different sizes: 5 cm 3 and 30 cm 3. They are commonly made in silicone rubber or natural rubber.
In most uses, a catheter is a thin, flexible tube (soft catheter) though catheters are available in varying levels of stiffness depending on the application. A catheter left inside the body, either temporarily or permanently, may be referred to as an "indwelling catheter" (for example, a peripherally inserted central catheter). A permanently ...
Intermittent catheters come in a variety of designs and differ for males and females, the former longer, the latter shorter. The catheter is inserted into the urethra by the patient or a carer and can either be directed down a toilet or, if measurement of volume is required, into a measuring jug.
This can be either an intermittent catheter or a Foley catheter that is placed with a small inflatable bulb that holds the catheter in place. [ citation needed ] Intermittent catheterization can be done by a health care professional or by the person themselves (clean intermittent self catheterization).
Diagram of a Foley catheter Foley first described the use of a self-retaining balloon catheter in 1929, to be used to achieve hemostasis after cystoscopic prostatectomy. [ 2 ] He worked on development of this design for use as an indwelling urinary catheter, to provide continuous drainage of the bladder, in the 1930s.
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