Related Experiment Video
Updated: Jul 15, 2026

Slow-release Drug Delivery through Elvax 40W to the Rat Retina: Implications for the Treatment of Chronic Conditions
Published on: September 17, 2014
Aspiration of a drug in a blister pack
Masataka Mori1, Kasumi Kusanagi1, Shuhei Ashikari1
1Department of Thoracic Surgery Shin Kokura Hospital, Federation of National Public Service, Personnel Mutual Aid Associations Kitakyushu Japan.
Abstract:
We report a rare case of aspiration of a drug in a press-through package (PTP) treated by not just pulling it but using a unique technique. A 73-year-old woman was referred to our department because of a persistent cough resulting from aspiration of a PTP. Flexible bronchoscopy identified the PTP in the trachea immediately above the carina. Just pulling the centre of the PTP edge with biopsy forceps could not move it, and we then rotated it by pulling the corner of the PTP edge to directly below the vocal cord. Passing over the vocal cord was difficult, which made us remove the bronchoscope and urge the patient to cough. These rotation techniques and voluntary coughing successfully removed the foreign body. This unique procedure may aid in the removal of a similar foreign body using a flexible bronchoscope forceps with insufficient grasping force.
Related Concept Videos
Drug Delivery: Enteral Route
Drugs in...
Drug Delivery: Miscellaneous Routes
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs through the...
Non-Oral Extravascular Drug Absorption Routes
Lipophilic drugs that are stable at salivary pH (6) and exhibit minimal binding to the oral mucosa are absorbed more effectively...
Oral Drug Delivery Systems: Introduction
Oral Drug Delivery Systems: Continuous-Release Systems
Oral Drug Delivery Systems: Delayed-Release Systems

