一种新型鼻肠管设计分析

IF 0.8 4区医学 Q4 ENGINEERING, BIOMEDICAL

Journal of Medical Devices-Transactions of the Asme Pub Date : 2022-02-16 DOI:10.1115/1.4053876

David S. Kirn, William F. Whitman, Richard D. Hisel, J. Price

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引用次数: 0

摘要

背景：对于通过小口径鼻肠内营养管接受肠内营养的患者，导管通畅是至关重要的。这些管道内堵塞的形成会中断和延迟营养的输送。不幸的是，电流管容易堵塞。小口径鼻肠内营养管的直径随着长度的增加而逐渐增加，可以减轻堵塞形成的风险。方法：相对于目前的（恒定直径）管，对直径随长度增加的小口径喂食管进行评估，以确定锥形管设计是否可以降低在台式测试中清除既定堵塞所需的压力，该压力代表了在临床环境中安全实现的压力。结果：在8F鼻饲管中加入锥形设计可显著降低62%的排出堵塞的压力（p<0.05；分别为258.6 kPa和710.8 kPa）。结论：与近端外径相同的定径管相比，锥形管设计可以在较低的压力下清除已形成的堵塞。

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Analysis of a Novel Nasoenteral Tube Design

Background: Tube patency is essential for patients who receive enteral nutrition via a small bore naso-enteral feeding tube. Formation of a clog within these tubes interrupts and delays delivery of nutrition. Unfortunately, current tubes are prone to clogging. A small-bore naso-enteral feeding tube that gradually increases in diameter over its length could mitigate the risk of clog formation. Methods: Small-bore feeding tubes that increase in diameter over their length, were evaluated relative to current (constant diameter) tubes to determine if a tapered tube design could reduce the pressure required to clear an established clog in benchtop testing at pressures representative of those achieved safely in the clinical environment. Results: Incorporating a tapered design into an 8F nasal feeding tube significantly reduced the pressure to expel an established clog by 62% (p < 0.05; 258.6 kPa vs. 710.8 kPa, respectively). Conclusion: When compared to constant diameter tubes with the same proximal outside diameter, a tapered tube design permits clearance of an established clog at lower pressure.

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来源期刊

Journal of Medical Devices-Transactions of the Asme ENGINEERING, BIOMEDICAL-

CiteScore

1.80

自引率

11.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Medical Devices presents papers on medical devices that improve diagnostic, interventional and therapeutic treatments focusing on applied research and the development of new medical devices or instrumentation. It provides special coverage of novel devices that allow new surgical strategies, new methods of drug delivery, or possible reductions in the complexity, cost, or adverse results of health care. The Design Innovation category features papers focusing on novel devices, including papers with limited clinical or engineering results. The Medical Device News section provides coverage of advances, trends, and events.