History and engineering of the Aneros

Hi.

There is an entry about the history of Aneros on the wiki. I have a few additional questions about this topic:

"1994 - A Japanese urologist contacts Japanese American inventor Jiro Takashima regarding the development of an in-home prostate massager for his patients with prostatitis and BPH."

I understand that it might not be possible to answer all questions, but it would be nice if someone with insider knowledge could shed light on some:

- Why did the Japanese urologist choose Jiro Takashima specifically in favor of other inventors / engineers? Did they know each other or did Mr. Takashima have specific knowledge in the design of medical devices, etc.?

- Did either of the men have personal experience with their prostate being massaged and maybe even experienced a super O? Did the urologist know about prostate pleasure from reports by his patients?

- Did they correspond with each other during the development of the first massager?

- Did Mr. Takashima get instructions on how prostate massage is performed in a medical setting? Did he study the anatomy and physiology of the rectum / prostate? Did he study CT images, anatomy books, etc? With natural deviations in anatomy between different people, how did they establish an "average" anatomy of the rectum, such that the massager can be used by many people? Or was the process more "trial and error"

- What was the starting point of the design? Was the first idea a manual device, similar in function to the Njoy Pure Wand, or did they envision a hands-free device from the beginning? In the case of a manual device as starting point: At which point during the development was the idea about a hands-free device conceived? (With the Perineum Tab as fulcrum)

- How were prototypes built? Were they made from wood (and maybe coated) or were they already molded? How was medical safety achieved, while still allowing a reasonably quick iteration time (for example putting it into a condom)?

- How did Mr. Takashima test the prototypes? By himself or with volunteers? Did he send prototypes to the urologist to get feedback?

- I understand that the original device was geared towards medical use, but did anyone experience prostate pleasure or even a super O as a side effect during development? Did anyone experience involuntary contractions and automatic movement of the device during development?

- This is probably my main question: How did the specific shape of the original massager evolve from prototype into the final shape during first release? What were the factors that influenced the shape?

If possible, I am also interested in how some of these questions could be answered at the current day: Do the engineers at Aneros have specific knowledge about which part of the geometry is responsible for a certain effect (changing one part could have an effect on multiple behaviors). How are prototypes built and tested? Do you use computer models or simulations?

Thank you