Fastening-type micro-nail magnetic-squeezing anastomosis ring

Abstract

A fastening-type micro-nail magnetic-squeezing anastomosis ring comprises a bolting ring and an upper ring connected to the upper part of the bolting ring and contains a circular knife, the inner side or the outer side of the bolting ring is integrally provided with more than two fixed nuts, and bolts which are connected with the fixed nuts and are used for clamping the upper ring contains the circular knife on the upper surface of the bolting ring firmly, and the upper ring and the bolt magnet ring are both elliptical or circular ring structures. The fastening-type micro-nail magnetic-squeezing anastomosis ring is fastened by the bolts, the healing quality is guaranteed, the anastomosis window is bigger, and the clinical application safety is improved; the cast that anastomotic orifice and the hemorrhoids tissues are penetrated and torn, and the anastomotic orifice bleeds and is torn and the like is avoided; and the anastomosis ring can be buckled with others easily; the circular knife is hidden in the inner rim of one side of the magnet ring, and surrounding tissues can be prevented from being damaged; and the anastomosis is not penetrating without residual foreign matter. According to the invention, the magnetic shielding effect can be reduced at the most extent, and the magnetic force is not obviously affected.

Description

Technical field [0001] The invention relates to a magnetic pressing anastomosis ring. In particular, it relates to a fastening type micro-nail magnetic pressing anastomotic ring with fastening type bolts and hidden safety round knife. Background technique [0002] The incidence of hemorrhoids in my country is relatively high, and with age, the incidence gradually increases. As the aging of our society intensifies, this problem will become more and more prominent. At present, surgical treatment of Ⅲ-Ⅳ degree prolapsed internal hemorrhoids is mainly used. In the past, external stripping and internal ligation was the main method. In 1998, the Italian scholar Longo first proposed the procedure for prolapse and hemorrhoids (PPH) using a round titanium stapler. PPH uses a stapler to circularly remove the loose lower rectal mucosa and submucosal tissues, and simultaneously anastomose the distal and proximal mucosa. The anal cushion is lifted and suspended again on the lower rectum, re...

AI Technical Summary

Problems solved by technology

[0007] However, due to the obvious defects of the magnetic anastomosis devices mentioned in previous literature or patents for hemorrhoid anastomosis, most of the magnetic anastomosis devices are two simple magnetic rings, which are difficult to meet the requirements of clinical safety, precision and reliability, and are far from clinical application. Need to solve the following problems:

[0009] 2) The characteristic of the magnetic ring itself is that as the thickness of the tissue increases, the magnetic force rapidly attenuates, and inflammation and edema often exist near hemorrhoids, and the varicose veins lead to thicker tissue, which significantly weakens the magnetic attraction, and easily leads to the anastomotic disengagement

[0010] 3) The material of the magnetic ring itself is mostly NdFeB or other rare earth materials, which are easy to disintegrate, difficult to precision process, and easy to be corroded by the internal environment of the human body.

[0011] 4) If a thicker ordinary metal shell is added, it will easily cause local magnetic shielding and seriously affect the magnetic force of the magnetic ring

[0012] 5) In addition, other magnetic rings lack fastening devices, and are easy to disengage when the tissue is thick or edema, which seriously affects the safety of clinical use

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