Development of innovative techniques for the endoscopic implantation and securing of a novel, wireless, miniature gastrostimulator (with videos)

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• 作者：Sanchali Deb ; PhD¹ ; Shou-jiang Tang ; MD² ; Thomas L. Abell ; MD² ; ; Tyler McLawhorn⁴ ; Wen-Ding Huang ; PhD¹ ; Christopher Lahr ; MD³ ; S.D. Filip To ; PhD⁵ ; Julie Easter⁴ ; J.-C. Chiao ; PhD¹
• 关键词：ESP ; endoscopic submucosal pocketing ; ESPI ; endoscopic submucosal pocketing and device implantation ; GES ; gastric electrical stimulation ; PEG ; percutaneous endoscopic gastrostomy
• 刊名：Gastrointestinal Endoscopy
• 出版年：2012
• 期刊代码：130_00165107
• 类别：med
• 出版时间：July, 2012
• 卷：76
• 期：1
• 页码：179-184
• 文件大小：1092 K

摘要

| Figures/TablesFigures/Tables | ReferencesReferences

Background

Gastric stimulation via high-frequency, low-energy pulses can provide an effective treatment for gastric dysmotility; however, the current commercially available device requires surgical implantation for long-term stimulation and is powered by a nonrechargeable battery.

Objective

To test and describe endoscopic implantation techniques and testing of stimulation of a novel, wireless, batteryless, gastric electrical stimulation (GES) device.

Design

Endoscopic gastric implantation techniques were implemented, and in vivo gastric signals were recorded and measured in a non-survival swine model (n = 2; 50-kg animals).

Intervention

Five novel endoscopic gastric implantation techniques and stimulation of a novel, wireless, batteryless, GES device were tested on a non-survival swine model.

Main Outcome Measurements

Feasibility of 5 new endoscopic gastric implantation techniques of the novel, miniature, batteryless, wireless GES device while recording and measurement of in vivo gastric signals.

Results

All 5 of the novel endoscopic techniques permitted insertion and securing of the miniaturized gastrostimulator. By the help of these methods and miniaturization of the gastrostimulator, successful GES could be provided without any surgery. The metallic clip attachment was restricted to the mucosal surface, whereas the prototype tacks, prototype spring coils, percutaneous endoscopic gastrostomy wires/T-tag fasteners, and submucosal pocket endoscopic implantation methods attach the stimulator near transmurally or transmurally to the stomach. They allow more secure device attachment with optimal stimulation depth.

Limitations

Non-survival pig studies.

Conclusion

These 5 techniques have the potential to augment the utility of GES as a treatment alternative, to provide an important prototype for other dysmotility treatment paradigms, and to yield insights for new technological interfaces between non-invasiveness and surgery.