The implantation of deep brain stimulation (DBS) electrodes into the human brain is a neurosurgical treatment for, e.g., movement disorders. We describe a novel approach to collecting brain tissue from DBS surgery-guiding instruments for liquid chromatography-mass spectrometry and RNA sequencing analyses. Proteomics and transcriptomics showed that the approach is useful for obtaining disease-specific expression data. A comparison between our improved and the previous approaches and related datasets was performed.