Water Works!!
Posted: Tue Mar 15, 2011 9:29 pm
Hello,
My name is Alex. I am a Doctor specialising in urology, so flow is a very important topic in my line of work!
I have been asking a question to which I have not been able to find an answer.
During bladder and prostate operations we use something called a resectoscope. It has a telescope and light source, but also a continuous irrigation system to wash out the blood stained fluid that obscures the view. Now, the inflow is normally a bag of water placed 1m above the patient. The outflow tap is on the side of the resectoscope. Good drainage not only gives better views but keeps the bladder pressure down which reduces complications
Would we achieve better drainage with tubing on this outflow tap going down to the floor to give a column of water which would give a bigger pressure difference, or would the length cause increased resistance and thus decrease the flow? The internal diameter of the tubing is 4mm, although the inflow and outflow channels within the scope is smaller.
Any advice would be appreciated
Alex
My name is Alex. I am a Doctor specialising in urology, so flow is a very important topic in my line of work!
I have been asking a question to which I have not been able to find an answer.
During bladder and prostate operations we use something called a resectoscope. It has a telescope and light source, but also a continuous irrigation system to wash out the blood stained fluid that obscures the view. Now, the inflow is normally a bag of water placed 1m above the patient. The outflow tap is on the side of the resectoscope. Good drainage not only gives better views but keeps the bladder pressure down which reduces complications
Would we achieve better drainage with tubing on this outflow tap going down to the floor to give a column of water which would give a bigger pressure difference, or would the length cause increased resistance and thus decrease the flow? The internal diameter of the tubing is 4mm, although the inflow and outflow channels within the scope is smaller.
Any advice would be appreciated
Alex