ArticleFrontiers in medicine2026
Design optimization and clinical prospects of a novel portable split-type negative pressure thoracic drainage device.
Article in Frontiers in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
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Abstract
Objective: To overcome the clinical limitations of traditional wall-mounted negative pressure drainage devices, which restrict early postoperative mobility and may delay enhanced recovery, this study aimed to optimize a self-developed portable thoracic drainage system through iterative design improvements. Methods: A novel second-generation portable negative pressure thoracic drainage device was developed based on a first-generation integrated design. The second-generation device employs a split-type architecture, wherein the negative pressure pump, power module, and optimized noise reduction system are integrated into an independent portable host via 3D printing technology. A flexible attachment method using double-sided adhesive tape and 3M hook-and-loop fasteners allows the host to be securely yet removably attached to the side of a standard three-chamber drainage bottle. The design prioritizes operational simplicity and clinical workflow compatibility. Results: The optimized device features a compact host measuring 139.6 × 95.6 × 35 mm and weighing about 400 g. The maximum negative pressure intensity main depends on the height of the water column in the three-chamber closed drainage bottle (close to 20 cm H₂O), host unit noise below 55 dB at a 3 L/min flow rate, and a battery life of 6-10 h. The estimated manufacturing cost is about 500 Chinese Yuan (~70 USD) per device unit, with a single-use consumable cost (drainage bottle) of about 45 Chinese Yuan (~6.3 USD). Conclusion: This study proposed the concept of a novel type of portable negative pressure thoracic drainage device and designed and manufactured a sample. In the next step, we will continue to improve this novel device and plan to apply it in clinical practice.
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