Implantable device for anti-gastroesophageal reflux

A technology of esophageal reflux and instruments, applied in the direction of prosthesis, surgery, coating, etc., can solve the problems of inflammation on the outside of the lower sphincter, inconvenient connection between the head and the tail, and unfavorable doctor's operation, so as to reduce discomfort, inhibit the growth of tissue cells, Ease of operation

Active Publication Date: 2018-11-02
NINGBO SHENGJIEKANG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its disadvantages are as follows: firstly, the formed ring is not round enough to fit well with the outside of the lower esophageal sphincter. When the patient swallows food, the esophageal expansion will rub against the instrument, causing discomfort to the patient, and even worse, causing the patient’s esophageal Symptoms such as inflammation on the outer side of the lower sphincter; secondly, it is inconvenient to connect the two ends of the head and tail, which is not conducive to the doctor's operation and increases the operation time; thirdly, after the magnetic bead chain is implanted in the body for a period of time, the magnetic beads and the gap between the adjacent magnetic beads The gap will be wrapped and buried by human tissue, once the patient is found to be unwell, it will be difficult to remove

Method used

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  • Implantable device for anti-gastroesophageal reflux
  • Implantable device for anti-gastroesophageal reflux
  • Implantable device for anti-gastroesophageal reflux

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] An anti-gastroesophageal reflux implant device 1 of the present invention, such as figure 1 As shown, including magnetic link 2 and auxiliary line 3; as image 3 As shown, the magnetic chain 2 includes a plurality of magnetic devices 21, a plurality of connecting units 22, and a locking device 23; Figure 4 As shown, the magnetic device 21 includes one or more ring magnets 212 and a housing 211, the outer surface of the ring magnet 212 is provided with a coating, and is arranged in the housing 211; Figure 9 As shown, the circumferential surface of the housing 211 is a concave arc surface 2114; as Figure 10 As shown, the connecting unit 22 includes a connecting piece 221 and a limiting piece 222. The connecting piece 221 is arc-shaped and is used to movably connect the adjacent magnetic devices 21. The limiting piece 222 is set The end of the connecting piece 221 is used to limit the separation distance of the adjacent magnetic devices 21, the limiting piece 222 is a...

Embodiment 2

[0076] The structure of the implant device in this embodiment is basically the same as that of the implant device described in Embodiment 1, the difference is that, as Figure 29 As shown, the housing 211 includes a sub-housing 2111, a female housing 2112, and a cover plate 2113, the sub-housing 2111 and the female housing 2112 form a mating connection, and the cover plate 2113 is fixedly connected to the sub-housing 2111 The end surface of the cover plate 2113 is provided with a through hole 21131, the female housing 2112 is provided with a through hole 21121, the through hole 21131 of the cover plate 2113 and the through hole 21121 of the female housing 2112 are axially Correspondingly, one end of the connection unit 22 passes through the through hole 21121 of the female housing 2112 , and the other end of the connection unit 22 passes through the cover plate 2113 of the adjacent magnetic device 21 . The through hole 21131, the cover plate 2113 is snapped into the circular g...

Embodiment 3

[0078]The structure of the implant device in this embodiment is basically the same as that of the implant device in Embodiment 1, except that in Embodiment 3, a tubular film 4 is provided outside the magnetic chain 2 . The tubular film isolates the magnetic chain 2 from human tissue, so that the adjacent magnetic devices 21 will not be filled with fibrous tissue, so as to avoid tissue embedding between the magnetic devices 21 and increase the expansion resistance of the magnetic chain 2, thereby cause difficulty in swallowing. Such as Figure 30 As shown, when the magnetic link 2 is connected in a straight line, the magnetic link 2 is inserted into the tubular film 4, and the outer wall of the magnetic link 2 is attached to the inner wall of the tubular film 4, In some embodiments, the tubular membrane 4 is made of polytetrafluoroethylene, perfluoroethylene propylene copolymer or parylene. Figure 31a and Figure 31b As shown, the tubular film 4 has a stacked structure, so t...

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Abstract

The invention relates to an anti-gastroesophageal reflux implantation device, which includes a magnetic chain and an auxiliary wire. The magnetic chain includes a plurality of magnetic devices, a plurality of connecting units, and a locking device. The magnetic device includes one or more ring-shaped The magnet and the shell, the inner circumferential surface of the shell is a concave arc surface; the adjacent magnetic devices are movably connected by a connecting unit, the connecting unit includes a connecting piece and a limiting piece arranged at its end, and the locking device includes Locking device I and locking device II, the magnetic chain also has a starting magnetic device and an end magnetic device, and the locking device I and the locking device II are respectively arranged on the shells of the starting magnetic device and the end magnetic device, When the locking device I and the locking device II are combined, the magnetic chain forms a closed circular magnetic chain ring. The design of the present invention is reasonable, and the shape formed by the series connection of magnetic chains is closer to a circle, so that the implanted device fits the outer wall of the esophagus more closely after being implanted on the outside of the lower esophageal sphincter, and fully exerts the role of the device in enhancing LES.

Description

technical field [0001] The invention relates to a medical implant device, more specifically, to an implant device for resisting gastroesophageal reflux. The implant device of the present invention surrounds the patient's lower esophageal sphincter outside the lower esophageal sphincter through laparoscopic surgery, so as to enhance the closing ability of the lower esophageal sphincter and play a role in resisting the reflux of gastric contents. Background technique [0002] Gastroesophageal reflux disease (GERD) refers to the reflux of excessive contents of the stomach and duodenum into the esophagus, causing symptoms such as heartburn, and can lead to esophagitis and tissue damage outside the esophagus such as the pharynx, larynx, and airway. Gastroesophageal reflux disease is very common in western countries. About 7% to 15% of the population has gastroesophageal reflux symptoms. The incidence increases with age. The peak age of onset is 40 to 60 years old. For patients w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/00A61L31/04A61L31/06A61L31/08A61L31/16A61L31/10
CPCA61F2/00A61L31/048A61L31/06A61L31/088A61L31/10A61L31/16A61F2210/00A61L2300/606A61L2300/416A61L2300/216C08L27/18C08L27/12C08L65/00C08L83/04A61F2/0004A61F2250/0001A61F2210/009
Inventor 陈智敏陈凯宾李志刚孙益峰
Owner NINGBO SHENGJIEKANG BIOTECH
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