ZSI 475
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The ZSI 475 Penile Implant is a three component inflatable system that is implanted in the human body. It reproduces the natural erectile activity of the penis to treat erectile dysfunction.
The implant consists of:

  • Two artificial cavernosum cylinders.
  • A reservoir.
  • A pump.

The two cylinders are implanted in the two corpus cavernosum passageways of the penis. The reservoir is filled with normal saline solution and is implanted in the pelvic area, next to the bladder. The pump is implanted in the scrotum. All three components of the implant are connected through a tube system (see picture).

Inflatable Penile Implant ZSI 475

3 layers for stronger resistance to pressure Low risk of bulking

If the cylinders are not constructed in 3 layers, there is a higher risk that the layer may expand during inflation of the cylinders, due to tunical weakening.

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Penis size: survey of female sexual satisfaction

A large majority, 45 woman out of 50 reported that penis width was the most important factor.
In response to studies of female satisfaction, at ZSI we designed our penile implant with large, wide, 3-layer cylinders, to give our patients' partners maximum sexual satisfaction. Publication can be find here:

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All the sizes available

From 12cm to 25cm with extensor

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Benefits of 3-layer cylinders

The ZSI 475's wide cylinders, constructed in 3 layers, provide very strong rigidity at their base, allowing for penetration without any bending.

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Why a reservoir?

Only inflatable penile implants with reservoirs allow for both a comfortable resting position and a firm erection when inflated. The reservoir can store enough saline solution to deflate/inflate the cylinders.


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The two-part penile implant (without reservoir) does not allow for proper deflation or inflation because the saline solution is always stored in the cylinders and does not allow for a full/strong erection or a empty/flaccid position.

ZSI 475 with 100% biocompatible silicone

Feel the difference

Take hold of the ZSI 475 cylinders and squeeze them. They don't make a sound. You're holding a 100% biocompatible silicone device.

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Take a sample from another implant. If it makes an unpleasant, plastic-sounding noise you are not holding a 100% silicone device. It may make similar noises in your penis, when in a deflated position.

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Safe in MRI and airport Scanners

You can travel with your ZSI 475. It cannot be detected by airport scanners.
The ZSI 475 is also safe in medical scanners.

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