diff --git a/lims_management/models/__init__.py b/lims_management/models/__init__.py
index 4ffd5f7..5b09e9e 100644
--- a/lims_management/models/__init__.py
+++ b/lims_management/models/__init__.py
@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
-from . import partner
-from . import product
 from . import analysis_range
-from . import sale_order
\ No newline at end of file
+from . import product
+from . import partner
+from . import sale_order
+from . import stock_lot
diff --git a/lims_management/models/__pycache__/__init__.cpython-312.pyc b/lims_management/models/__pycache__/__init__.cpython-312.pyc
index 51f1d65..03e4810 100644
Binary files a/lims_management/models/__pycache__/__init__.cpython-312.pyc and b/lims_management/models/__pycache__/__init__.cpython-312.pyc differ
diff --git a/lims_management/models/__pycache__/stock_lot.cpython-312.pyc b/lims_management/models/__pycache__/stock_lot.cpython-312.pyc
new file mode 100644
index 0000000..15aeeeb
Binary files /dev/null and b/lims_management/models/__pycache__/stock_lot.cpython-312.pyc differ
diff --git a/lims_management/models/stock_lot.py b/lims_management/models/stock_lot.py
new file mode 100644
index 0000000..8ca95bf
--- /dev/null
+++ b/lims_management/models/stock_lot.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+from odoo import models, fields
+
+class StockLot(models.Model):
+    _inherit = 'stock.lot'
+
+    is_lab_sample = fields.Boolean(string='Is a Laboratory Sample')
+    
+    patient_id = fields.Many2one(
+        'res.partner', 
+        string='Patient',
+        domain="[('is_patient', '=', True)]"
+    )
+    
+    request_id = fields.Many2one(
+        'sale.order', 
+        string='Lab Request',
+        domain="[('is_lab_request', '=', True)]"
+    )
+    
+    collection_date = fields.Datetime(string='Collection Date')
+    
+    container_type = fields.Selection([
+        ('serum_tube', 'Serum Tube'),
+        ('edta_tube', 'EDTA Tube'),
+        ('swab', 'Swab'),
+        ('urine', 'Urine Container'),
+        ('other', 'Other')
+    ], string='Container Type')