  The problem of a Dirac particle moving in a deformed Hulthen potential is
solved in the framework of the path integral formalism. With the help of the
Biedenharn transformation, the construction of a closed form for the Green's
function of the second-order Dirac equation is done by using a proper
approximation to the centrifugal term and the Green's function of the linear
Dirac equation is calculated. The energy spectrum for the bound states is
obtained from the poles of the Green's function. A Dirac particle in the
standard Hulthen potential for q=1 and a Dirac hydrogen-like ion when q = 1 and
a that tends to infinity are considered as particular cases.
