diff --git a/netforce_clinic/layouts/clinic_dialyzer_form.xml b/netforce_clinic/layouts/clinic_dialyzer_form.xml
index 419d626..aea4907 100644
--- a/netforce_clinic/layouts/clinic_dialyzer_form.xml
+++ b/netforce_clinic/layouts/clinic_dialyzer_form.xml
@@ -35,7 +35,21 @@
         <button string="Drop" type="danger" icon="remove" states="active" method="drop"/>
     </foot>
     <related>
+        <!--<field name="hd_cases" readonly="1"/>-->
+        <field name="hd_cases_dlz" readonly="1">
+            <list>
+                <field name="hdcase_date"/>
+                <field name="use_time"/>
+            </list>
+            <form>
+                <field name="hd_case_id"/>
+                <field name="membrane_type" span="2"/>
+                <field name="dialyzer_type" span="2"/>
+                <field name="use_time"/>
+                <field name="max_use_time"/>
+                <field name="description"/>
+            </form>
+        </field>
         <field name="pickings" click_action="view_picking"/>
-        <field name="hd_cases" readonly="1"/>
     </related>
 </form>
diff --git a/netforce_clinic/models/dialyzer.py b/netforce_clinic/models/dialyzer.py
index 6176434..0ac16be 100644
--- a/netforce_clinic/models/dialyzer.py
+++ b/netforce_clinic/models/dialyzer.py
@@ -16,7 +16,7 @@ class Dialyzer(Model):
         'ref': fields.Char("Ref."),
         "note": fields.Text("Note",search=True),
         "date": fields.DateTime("Create Date",search=True),
-        "use_time": fields.Integer("Use Time"),
+        "use_time": fields.Integer("Last Use Time"),
         "max_use_time": fields.Integer("Max Use Time"),
         "exp_date": fields.Date("Expiry Date",search=True),
         "dialyzer_type": fields.Selection([("low","low flux"),("high","high flux"),("dbl","dbl hifulx")],"Dialyzer Type"),
@@ -29,6 +29,7 @@ class Dialyzer(Model):
         "visit_id": fields.Many2One("clinic.visit","Visit",search=True),
         "hd_case_id": fields.Many2One("clinic.hd.case","HD Case",search=True),
         "hd_cases": fields.One2Many("clinic.hd.case","dlz_id","HD Case"), #TODO funtion to get hd case
+        "hd_cases_dlz": fields.One2Many("clinic.hd.case.dialyzer","dialyzer_id","Dialyzer History"),
         'department_id': fields.Many2One("clinic.department","Department",search=True),
         "membrane_type": fields.Selection([("unsub","Unsub cellul"),("sub","Sub cellul"),("synthetic","Synthetic")],"Membrane Type"),
     }
diff --git a/netforce_clinic/models/hd_case.py b/netforce_clinic/models/hd_case.py
index 987c088..2c6588e 100644
--- a/netforce_clinic/models/hd_case.py
+++ b/netforce_clinic/models/hd_case.py
@@ -894,14 +894,17 @@ class HDCase(Model):
         for obj in self.browse(ids):
             is_decrease=context.get('is_decrease')
             for dlz_line in obj.dialyzers:
+                dlz=dlz_line.dialyzer_id
                 membrane_type=dlz_line.membrane_type or 'unsub'
                 dialyzer_type=dlz_line.dialyzer_type or 'low'
                 use_time=dlz_line.use_time or 0
                 max_use_time=dlz_line.max_use_time or 0
                 desc=dlz_line.description or ''
+                #TODO when we to draft after approve hdcase it will update the wrong use time
+                #if use_time > (dlz.use_time or 0):
+                    #continue
                 if is_decrease:
                     use_time-=1
-                    print("decrease ok")
                 vals={
                     'membrane_type': membrane_type,
                     'dialyzer_type': dialyzer_type,
@@ -916,9 +919,6 @@ class HDCase(Model):
                     })
                 elif use_time > max_use_time:
                     raise Exception("Dialyzer is expired!")
-                else:
-                    pass
-                dlz=dlz_line.dialyzer_id
                 dlz.write(vals)
         return True
 
diff --git a/netforce_clinic/models/hd_case_dialyzer.py b/netforce_clinic/models/hd_case_dialyzer.py
index 3895f12..ed7781e 100644
--- a/netforce_clinic/models/hd_case_dialyzer.py
+++ b/netforce_clinic/models/hd_case_dialyzer.py
@@ -6,21 +6,24 @@ class HDCaseDialyzerLine(Model):
     def _get_all(self,ids,context={}):
         res={}
         for obj in self.browse(ids):
-            dlz=obj.dialyzer_id
+            hdcase_date=obj.hd_case_id.date
             res[obj.id]={
-                'membrane_type': dlz.membrane_type,
+                'hdcase_date': hdcase_date,
             }
         return res
 
     _fields={
-        "hd_case_id": fields.Many2One("clinic.hd.case","HdCase",on_delete="cascade"),
+        "hd_case_id": fields.Many2One("clinic.hd.case","HDCase",on_delete="cascade"),
         "dialyzer_type": fields.Selection([("low","low flux"),("high","high flux"),("dbl","dbl hifulx")],"Dialyzer Type"),
         "dialyzer_id": fields.Many2One("clinic.dialyzer","Dialyzer",search=True),
         "description": fields.Char("Description",search=True),
         "use_time":fields.Integer("Use time"),
         "max_use_time":fields.Integer("Max use time"),
         "membrane_type": fields.Selection([("unsub","Unsub cellul"),("sub","Sub cellul"),("synthetic","Synthetic")],"Membrane Type"),
+        'hdcase_date': fields.Date('Date', function="_get_all",function_multi=True),
     }
 
+    _order="hd_case_id.date desc"
+
 HDCaseDialyzerLine.register()