Hi etinca. I am sorry to hear of your wife's injury.
I just took a look at HAL's Web site and found their Access to Excellence brochure
. In it, it states that pax must use an "approved provider" and asks that pax contact ther Access & Compliance Department: (800) 547-8493, or email@example.com
. The department is open M-F from 8am-5pm Pacific time.
Let us know how it goes. I also hope your wife's recovery goes well.