A penile clamp for retrograde urethrography using external compression by a balloon catheter

Area of Science:

• Urology
• Medical Devices
• Radiology

Background:

• Retrograde urethrography requires a secure seal for accurate contrast medium injection.
• Existing methods for penile sealing can be cumbersome or ineffective.

Purpose of the Study:

• To describe a novel penile clamp apparatus for retrograde urethrography.
• To detail the mechanism of achieving a seal for contrast injection.

Main Methods:

• A penile clamp design is described.
• Utilizes external compression via an air-filled Foley catheter balloon.
• Counter-pressure is applied by an encircling bandage.

Main Results:

• The described apparatus effectively creates a seal around a fine-bore catheter.
• Facilitates retrograde urethrography by enabling controlled contrast injection.

Conclusions:

• The described penile clamp offers a potentially simple and effective method for retrograde urethrography.
• This design may improve the procedure's efficiency and reliability.