Background: In this study, we shared the implementation success and clinical results for 38 patients treated with the cleaner™ pharmacomechanical thrombectomy device. Objectives: The impact and results of pharmacomechanical thrombectomy treatment on patients with deep vein thrombosis in the symptomatic acute and subacute phases were assessed. Patients and Methods: Pharmacomechanical thrombectomy treatment was applied in a single session for 38 patients with lower extremity deep vein thrombosis in the acute and subacute phases between May 2012 and June 2014. Venography was performed and each assessment was made based on lysis rates and clinical results. Results: Deep vein thrombosis was found in the left lower extremity in 25 patients (65%) and in the right lower extremity in 13 patients (35%). No patient was found to have bilateral deep vein thrombosis. Thrombus localization was in the iliofemoral area in 17 patients (44%), the iliocaval area in three patients (8%), and the femoropopliteal area in 18 patients (56%). When thrombus resolution was assessed at the end of the process, grade III and grade II lysis was achieved in 36 (94%) out of 38 patients. Complete resolution was achieved in 28 patients (74%) in the acute and subacute groups. Conclusion: Pharmacomechanical thrombectomy provides very satisfactory results in a single procedure, as a new method in the treatment of acute and subacute deep vein thrombosis.