Anchoring and delivery system for a gastro-duodenal implant

A duodenal implant technology, applied in the field of implantable medical devices, can solve problems that hinder the insertion, deployment, and reliable maintenance of duodenal inserts.

Inactive Publication Date: 2014-08-13
NAT UNIV OF SINGAPORE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the duodenal insert of US 5,820,584 may have an atraumatic surface, it is believed to include various structur

Method used

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  • Anchoring and delivery system for a gastro-duodenal implant
  • Anchoring and delivery system for a gastro-duodenal implant
  • Anchoring and delivery system for a gastro-duodenal implant

Examples

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Embodiment approach

[0048] Embodiments of the present invention relate to substantially or substantially atraumatic gastroduodenal implants that can be placed along or at a desired portion of the gastrointestinal tract relative to the pyloric orifice and / or pyloric sphincter. A portion is securely held, maintained, or anchored. Various embodiments of gastroduodenal implants according to the invention include the following:

[0049] (1) A gastric resident primary retention structure having a set of structural features, segments, or a component, and its spatial extent or cross-sectional area significantly exceeds the maximum or expected maximum cross-sectional area of ​​each of the pyloric orifice and cardia antrum, so as to reduce or allow a substantial or significant portion of the first retention structure to be blocked by the pyloric sphincter or The possibility of esophageal accommodation is minimized;

[0050] (2) a second retention structure comprising one or more components configured to ...

example 1

[0089] A specific embodiment of the gastroduodenal implant according to the invention is implanted in a pig. The weight of implanted pigs is tabulated for control pigs of the same sex and starting weight but without implants versus implanted pigs. Over the course of 60 days, the rate of weight gain of implanted pigs was significantly less than that of control pigs.

[0090]

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Abstract

Gastro-duodenal implants of the present disclosure are configured to resiliently absorb / redistribute gastrointestinal forces, and can include a first retention structure configured to reside in the stomach, and a second retention structure configured for positioning adjacent to the pyloric sphincter on the pyloric opening's duodenal side. Resilient coupling members (e.g., one or more springs) can resiliently bias the first portion away from the second portion (e.g., to maintain the first portion at a default separation distance away from the second portion or the pyloric sphincter). The first portion can be deformable, such as by way of resilient elements that couple frame members, or ellipsoidal / toroidal elements within a flexible assembly. In an embodiment, the first portion includes a compressible fluidly distortable structure configured to adaptively deform (e.g., compress or expand as a result of fluid displacement within the first retention structure).

Description

technical field [0001] The present invention relates to bariatric surgery. In particular, the present invention relates to implantable medical devices and methods of using same for bariatric surgery. Background technique [0002] Obesity is increasing worldwide at an alarming rate. The World Health Organization (WHO) predicts that in the near future, there may be more than 2 billion overweight adults and more than 70 million obese adults worldwide. Overweight individuals, especially those who are obese, may experience serious health consequences from the extra weight they carry, such as cardiovascular disease (such as heart attack and stroke), diabetes, musculoskeletal disease (such as osteoarthritis), and some types of cancer (such as colon and endometrial cancer). [0003] For those individuals who are unable to diet and / or exercise to lose weight, medical devices, methods and techniques have been attempted to manage or treat obesity and obesity-related conditions. For...

Claims

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Application Information

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IPC IPC(8): A61F5/00
CPCA61F5/0079A61F5/0036A61F5/003A61F5/0076
Inventor 圣哲·悉尼·钟博克严·吉米·宋林睿李孝培林錫彬阿西姆·沙碧尔洪翠茵卢威铨伟鸿·丹尼斯·西恩黄紫薇
Owner NAT UNIV OF SINGAPORE
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