FOURTH SUPPLEMENT TO THE

                    CONFIDENTIAL PRIVATE PLACEMENT MEMORANDUM

                                   May 2, 2000

                   FLORIDA LITHOTRIPTERS LIMITED PARTNERSHIP I

                                2008 Litho Place

                       Fayetteville, North Carolina 28304

                  Florida Lithotripters Limited Partnership I, a Florida limited
partnership (the  "Partnership"),  hereby  supplements its Confidential  Private
Placement  Memorandum of February 25, 2000, as supplemented  (collectively,  the
"Memorandum").  Capitalized  terms  used  herein  are  defined  in the  Glossary
appearing  in  the  Memorandum.  All  persons  who  have  subscribed  for or are
considering  an  investment  in  the  Units  offered  by the  Memorandum  should
carefully review this Supplement.

Extension of the Offering

                  Pursuant to the authority  reserved by the General  Partner in
the Memorandum,  the General Partner hereby elects to extend the Closing Date to
May 15,  2000 (or such  earlier  date as the  General  Partner  may, in its sole
discretion, otherwise elect).

     Questions   concerning  this  Supplement  should  be  directed  to  MedTech
Investments,  Inc.,  2008  Litho  Place,  Fayetteville,  North  Carolina  28304.
MedTech's telephone number is (800) 682-7971.