What Do You Know About Catheters?

By Ron Elliot


Most people have heard of "catheters", but not many people understand the importance of catheters in medicine. A catheter is a tube that can be inserted into a body cavity, duct, or vessel for drainage purposes. The process of inserting a catheter is called catheterization.

Disposable catheters were invented in the 1940s by David S. Sheridan. Before Sheridan's disposable catheters existed, red rubber tubes were used and then re-used. This often led to the spread of infection and disease between patients. Sheridan's disposable catheters have been credited with saving thousands of lives.

Disposable catheters are made from a wide range of polymers, including silicone rubber, latex, and thermoplastic elastomers. The most common material used in catheter construction is silicone rubber. Silicone rubber is inert and unreactive to body fluids as well as a many medical fluids with which catheters come into contact.

There are four types of catheters: soft, hard, indwelling and permcath. In most uses, a soft catheter is used. A soft catheter is a thin, flexible tube. Sometimes there is a need to have a catheter that is a larger, solid catheter or a hard catheter. A catheter placed inside the body, temporarily or permanently, is referred to as an indwelling catheter. A permcath is a permanently inserted catheter.

Catheters are used for various drainage uses, such as:

- Drainage of urine from the kidney by percutaneous

- Drainage of urine from the kidney by percutaneous

- Direct measurement of blood pressure in an artery or vein

- Direct measurement of intracranial pressure

- Direct measurement of blood pressure in an artery or vein

- Administration of insulin or other medications, with the use of an infusion set and insulin pump

- Administration of insulin or other medications, with the use of an infusion set and insulin pump

- Administration of insulin or other medications, with the use of an infusion set and insulin pump

The most commonly known catheter is known as the "Foley catheter" used for urinary drainage. Proper care of a Foley catheter is imperative. If the catheter is left in place for long periods of time, it can lead to urinary tract infections, narrowing of the urethra, bladder stones or urethral abscesses.




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By Ron Elliot


Most people have heard of "catheters", but not many people understand the importance of catheters in medicine. A catheter is a tube that can be inserted into a body cavity, duct, or vessel for drainage purposes. The process of inserting a catheter is called catheterization.

Disposable catheters were invented in the 1940s by David S. Sheridan. Before Sheridan's disposable catheters existed, red rubber tubes were used and then re-used. This often led to the spread of infection and disease between patients. Sheridan's disposable catheters have been credited with saving thousands of lives.

Disposable catheters are made from a wide range of polymers, including silicone rubber, latex, and thermoplastic elastomers. The most common material used in catheter construction is silicone rubber. Silicone rubber is inert and unreactive to body fluids as well as a many medical fluids with which catheters come into contact.

There are four types of catheters: soft, hard, indwelling and permcath. In most uses, a soft catheter is used. A soft catheter is a thin, flexible tube. Sometimes there is a need to have a catheter that is a larger, solid catheter or a hard catheter. A catheter placed inside the body, temporarily or permanently, is referred to as an indwelling catheter. A permcath is a permanently inserted catheter.

Catheters are used for various drainage uses, such as:

- Drainage of urine from the kidney by percutaneous

- Drainage of urine from the kidney by percutaneous

- Direct measurement of blood pressure in an artery or vein

- Direct measurement of intracranial pressure

- Direct measurement of blood pressure in an artery or vein

- Administration of insulin or other medications, with the use of an infusion set and insulin pump

- Administration of insulin or other medications, with the use of an infusion set and insulin pump

- Administration of insulin or other medications, with the use of an infusion set and insulin pump

The most commonly known catheter is known as the "Foley catheter" used for urinary drainage. Proper care of a Foley catheter is imperative. If the catheter is left in place for long periods of time, it can lead to urinary tract infections, narrowing of the urethra, bladder stones or urethral abscesses.




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