How does a penile prosthesis work?
There are two types of penile implants: semirigid, noninflatable implants and inflatable implants.
Semi-rigid implants consist of two bendable rods that are implanted in the erection chambers of the penis. They can be bent into position during sexual activity. With this type of implant, the penis is always semi-rigid, which may be difficult to conceal.
Inflatable penile implants are devices filled with fluid which consist of two inflatable cylinders placed in the erection chambers of the penis, a hand-controlled pump placed in the scrotum, and a reservoir which stores fluid when the penis not erect. The device is inflated by squeezing the pump several times to move the fluid from the reservoir to the cylinders. Afterwards, the pump is also used to move the fluid back to the reservoir (Fig. 1).
You need surgery for both types of implants. Both types of implants are placed completely inside the body. Inflatable implants are used more often because they result in a more natural situation. In complicated cases, semi-rigid implants may be more suitable. Discuss the choice between the two implants with your urologist.
Fig. 1: A common type of inflatable penile implant.
Penile Prosthesis Types

Infla10® X
Infla10® X cylinders offer girth expansion, providing satisfactory axial rigidity while providing natural flaccidity.

Infla10® AX
Infla10® AX cylinders, in addition to girth expansion, also offer up to 25% length expansion depending on the patient’s anatomy.2

Infla10® NB
Infla10® NB cylinders are designed for patients with smaller or compromised anatomies. The cylinders offer girth expansion for great rigidity.

Rigi10™
Flexible Rod Technology™ enables the rod to reach a bending angle of up to 135 degrees while simulating a more natural erection feeling.

Rigi10™ Hydrophilic
Flexible Rod Technology™ enables the rod to reach a bending angle of up to 135 degrees while simulating a more natural erection feeling. Rigi10™ Hydrophilic, incorporates a hydrophilic coating which may promotes easier device implantation.
References:
EAU Patient Information | ED Page | July 2021. UROWEB
1 Data on file | Rigicon Infla10 IPP.