UDS Catheter set-up

UDS Catheter set-up

T-DOC Air-Charged Method of Urodynamics

1. Connect T-DOC cables to equipment as follows:

Note: Make sure equipment is turned off and unplugged before connecting cables.

v.   Yellow    : Pves Bladder Cable to P1 Channel

vi.  Blue       : PabdAbdominal Cableto P2 Channel

vii. Green    : PuraUrethral Cableto P3 Channel

2. Partially open T-DOC Air-Charged Catheter pouch to expose color-coded

luerlock, leaving distal end of the catheter in pouch to avoid contamination.

3. Make sure the transducer cable switch is pushed to “Open”

(atmospheric pressure).

4. Remove all protective caps from catheter and cable. Connect the catheter to the reusable cable by twisting the luer locks to a snug and tight position.

5. Proceed to the next catheter and repeat steps 1-4 until all catheter pressure sensing lines are connected to their color-coded transducer cables.

6. Secure the cables with a Velcro leg strap or tape preferably in a cable organizer.


7. Position the patient in the supine or lithotomy position.

8. Insert catheter into patient. Cable switch should still be in the “Open” position removing any residual air in the balloon.

    a. Female: Insert the Vesical (Pves) Catheter 8-10 CM

    b. Male: Insert the Vesical (Pves) Catheter 10 – 12 CM plus penile length

Do not force if resistance is met.

9. Tape the catheter to inner thigh for females, to the penis for males

10.  a. Female: Insert the Abdominal (Pabd) Catheter into the vagina until resistance is met or

       Alternatively into the rectum to the level of the Cul De Suc of Douglas or 12 CM (Preferably along the posterior wall of the vagina)

       b. Male: Insert the Abdominal (Pabd) Catheter above the prostate 10 -12 CM up the rectal region

(Preferably along the anterior wall of the rectum). It is advisable to evacuate the rectum of stool prior to catheter insertion, do not force.

11. Zero machine for all pressures.

12. Slide the transducer cable switch to the “Charge” position.

13. Slightly adjust the position of the abdominal pressure if necessary to equalize resting pressure with vesical catheter.

14. If want to have Pdet = 0 then change Pabd to equal Pves. (Do not zero Pves or change Pves.)

IMPORTANT: These last minute adjustments should be done whenever moving the patient or changing the patient’s position.

15. Perform urodynamic procedure according to your normal protocol.