How to pass a custom Object to a Stored Procedure function?

hi I have the following function.

CREATE FUNCTION "tblpacientesinsertar"("paciente" OBJECT) RETURN STRING
AS LANGUAGE JAVA 
NAME 'TblPacientes.Insertar(cubrid.sql.CUBRIDOID) return java.lang.String'

I want to pass a custom object class, but I dont know if CUBRIDOID is the right type.

My custom type is public class BoPacientes.

My stored procedure is public static String Insertar(BoPacientes paciente).

C# code looks like:

public BoPacientes Insertar(BoPacientes objeto)
        {
            .....//code code                        CUBRIDCommand com = new CUBRIDCommand();
                        com.Connection = con;
                        com.CommandText = "select tblpacientesinsertar(" + objeto + ")";
                        con.Open();       .......//some code logical       } 

The error I receive is:

Semantic: Dev9.DataAccess.Pacientes.BoPacientes is not defined.
select tblpacientesinsertar(Dev9.DataAccess.Pacientes.BoPacientes) 

I have a java object called BoPacientes.Class registered in CUBRID.