It is possible. The only way to know for sure is to examine the claims of the other patent against your design. If you meet the limitations of any of the claims, a product manufactured according to your design will infringe the other patent. You should have a patent attorney perform this review unless you have experience with claim interpretation.
Just because you obtain a patent does not mean that you are not infringing other patents. Similarly, it is possible to obtain a patent that builds on someone else's design.
Answered on Mar 11th, 2011 at 12:08 PM