Penis Activated

Penis Activated

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Scientists are developing what they hope will be a new option for men experiencing erectile dysfunction. In a paper published in the January issue of the medical journal Urology , University of Wisconsin School of Medicine and Public Health assistant professor Brian Le and colleagues from Northwestern University and Southern Illinois University describe a penile implant they have developed using a nickel-titanium alloy that expands when heat is applied. The rod would be implanted via a simple surgery, and it would expand when activated by a remote-controlled device but remain flaccid the rest of the time.
Inserting a nickel-titanium rod into one’s penis might sound horrifying to men who don’t suffer from erectile dysfunction, but it’s potentially a huge improvement over other options for men who don’t respond to pharmaceutical interventions. A press release about the paper explains the existing surgical options for men with erectile dysfunction, which don’t typically interfere with a man’s orgasm but aren’t exactly ideal:
Indeed, when your existing choices are either pumping fluid into your penis or experiencing a permanent erection, an implant that expands with heat sounds like a dream. Then again, the proposed nickel-titanium (NiTi) implant is not exactly hands-free. “Le and collaborators at Southern Illinois University are currently working on a remote-control device that can be waved over the penis, using induction to heat the NiTi a few degrees above body temperature and ratcheting open the alloy prosthesis to expand the penis in length and girth,” states the press release. God help the man who loses track of that remote control device! Then again, maybe relinquishing the remote control to a trusted partner could add a frisson of surprise to foreplay?
Either way, God bless Le and all the other scientists working to make erectile dysfunction less uncomfortable and embarrassing. Everyone deserves the ability to pursue a satisfying sex life, and if it takes “an exoskeleton of temperature-tuned Nitinol tubing from a commercial provider surrounding a pliable core of latex rubber buttressed on both ends by silastic caps” to get there—as Le’s paper pithily puts it—so be it.
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Partin AW, et al., eds. Surgery for erectile dysfunction. In: Campbell-Walsh-Wein Urology. 12th ed. Elsevier; 2021. https://www.clinicalkey.com. Accessed Sept. 30, 2021.
AskMayoExpert. Penile prosthesis (adult). Mayo Clinic; 2021.
Lazarou S. Surgical treatment of erectile dysfunction. https://www.uptodate.com/contents/search. Accessed Sept. 28, 2021.
Burnett AL, et al. Erectile dysfunction: AUA guideline. Journal of Urology. 2018; doi:10.1016/j.juro.2018.05.004.
Barnard JT, et al. Technological advances in penile implant surgery. The Journal of Sexual Medicine. 2021; doi:10.1016/j.jsxm.2021.04.011.
Braswell-Pickering EA. Allscripts EPSi. Mayo Clinic. July 16, 2021.
Kohler TS (expert opinion). Mayo Clinic. Oct. 6, 2021.

2-piece penile implant

3-piece penile implant

Erectile dysfunction

Erectile dysfunction: Nonoral treatments

Peyronie's disease

Priapism

Semirigid penile implant

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Penile implants are devices placed inside the penis to allow men with erectile dysfunction (ED) to get an erection. Penile implants are typically recommended after other treatments for ED fail.
There are two main types of penile implants, semirigid and inflatable. Each type of penile implant works differently and has various pros and cons.
The placement of penile implants requires surgery. Before choosing penile implants, make sure you understand what surgery involves, including possible risks, complications and follow-up care.
For most men, erectile dysfunction can be successfully treated with medications or use of a penis pump (vacuum constriction device). You might consider penile implants if you aren't a candidate for other treatments or you can't get an erection sufficient for sexual activity by using other methods.
Penile implants can also be used to treat severe cases of a condition that causes scarring inside the penis, leading to curved, painful erections (Peyronie's disease).
Penile implants aren't for everyone. Your health care provider might caution against penile implants if you have:
While penile implants allow men to get an erection, they don't increase sexual desire or sensation. Penile implants also won't make your penis any larger than it is at the time of surgery. In fact, with an implant, your erect penis might seem slightly shorter than it used to be.
Our caring team of Mayo Clinic experts can help you with your health concerns. Visit Mayo Clinic Men's Health to
get started.
Risks of penile implant surgery include:
Infections after penile implant surgery typically occur within the first three months of surgery. Surgery to remove the implant often is necessary to treat an infection.
Initially, you'll talk to your health care provider or a urologist about penile implants. During your visit, your health care provider will likely:
Do a physical exam. To make sure penile implants are the best options for you, your health care provider will do a physical exam, including a complete urologic exam. Your health care provider will confirm the presence and nature of ED , and make sure that your ED can't be treated in another way.
Your provider may also try to determine whether there's a reason that penile implant surgery is likely to cause complications. Your health care provider will also examine your ability to use your hands, since some penile implants require greater manual dexterity than others.
Discuss your expectations. Make sure you understand what the procedure involves and the type of penile implant that suits you best. Remember that the procedure is considered permanent and irreversible.
Your health care provider will also explain the benefits and risks, including potential complications. Ideally, you'll include your partner in the discussion with your health care provider.
The three-piece inflatable penile implant consists of inflatable cylinders inside the shaft of the penis, a fluid reservoir under the abdominal wall, and a pump inside the scrotum.
The two-piece inflatable penile implant consists of inflatable cylinders inside the shaft of the penis and a combined fluid reservoir and pump unit in the scrotum.
The semirigid penile implant is bent upward for sex and toward the body for concealment under clothing.
There are two main types of penile implants:
Inflatable implants. Inflatable devices, the most common type of penile implant, can be inflated to create an erection and deflated at other times. Three-piece inflatable implants use a fluid-filled reservoir implanted under the abdominal wall, a pump and a release valve placed inside the scrotum, and two inflatable cylinders inside the penis.
To achieve an erection, you pump the fluid, which is salt water, from the reservoir into the cylinders. Afterward, you release the valve inside the scrotum to drain the fluid back into the reservoir.
The two-piece model works in a similar way, but the fluid reservoir is part of the pump implanted in the scrotum. In both devices, the reservoir is filled with salt water the day of surgery and remains in the device.
Semirigid rods. Semirigid devices are always firm. The penis can be bent away from the body for sexual activity and toward the body for concealment.
A positionable penile implant is a semirigid device with a central series of segments held together with a spring on each end. It can maintain upward and downward positions better than other semirigid rods can.
Other special designs can fit a shortened penis or one that's larger than average. Inflatable penile implants are also available with antibiotic coatings, which might help reduce the risk of infection, and coatings to reduce friction, possibly lengthening the life of the implant.
When choosing a type of penile implant, consider your personal preference and your medical history. Your health care provider might suggest one type of design over another based on your age, risk of infection, and health conditions, injuries or medical treatments you've had.
Before penile implant surgery you might also need to:
Penile implant surgery is usually done at a surgery center or hospital. Your health care provider might give you medication to make you unconscious during the surgery (general anesthesia) or medication that blocks pain in the lower part of your body (spinal anesthesia).
Your health care provider will give you IV antibiotics to help prevent infection. The surgery site will also be washed with an alcohol-based antibiotic solution and shaved before surgery to reduce the risk of infection.
A tube (catheter) might be inserted into your bladder via your penis to collect urine at some point during surgery. Your surgeon will make an incision below the head of the penis, at the base of the penis or in the lower abdomen.
Next, your surgeon will stretch the spongy tissue in the penis that would normally fill with blood during an erection. This tissue is inside each of two hollow chambers called the corpora cavernosa.
Your surgeon will choose the correct size implant and place the implant cylinders inside your penis. All sizes are customized to your body measurements.
If your surgeon is implanting a two-piece inflatable device, a pump and valve are placed inside the scrotum. For a three-piece device, he or she will also implant a fluid reservoir above or under the abdominal wall using the initial incision. Sometimes a second incision in the abdomen in used.
Once the device is in place, your surgeon will sew the incisions closed. Penile implant surgery usually takes 45 minutes to an hour.
After penile implant surgery, you'll likely need to take medications to ease pain. Often a long-acting injection is given into the scrotum to help reduce pain for 48 to 72 hours. Mild pain might persist for several weeks. You might be given an antibiotic to be taken by mouth for a week.
Ask your health care provider when you can resume your regular activities. Most men can resume strenuous physical activity and sexual activity about 4 to 6 weeks after surgery.
After you learn how to use the device, usually 3 to 6 weeks after surgery, your health care provider might recommend inflating and deflating inflatable penile implants to give you practice using them and stretch the area surrounding the cylinders.
Although penile implants are the most invasive treatment for erectile dysfunction, most men who have them and their partners report satisfaction with the devices. In fact, penile implants have the highest rate of satisfaction of all erectile dysfunction treatments.

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Creates the most natural, rigid erection
Provides flaccidity when deflated

Has more parts that could malfunction than does any other implant
Requires a reservoir inside the abdomen or underneath the abdominal muscles

Provides partial flaccidity when deflated

Is mechanically more complicated than is a semirigid implant
Provides less-firm erections than does a three-piece implant

Has a low chance of malfunction due to the small number of parts
Is easy to use for those with limited mental or manual dexterity

Results in a penis that is always slightly rigid
Puts constant pressure on the inside of the penis, which can cause injury
Can be difficult to conceal under clothing

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