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CN-121971131-A - Magnetic squeezing anastomosis system for digestive endoscopy intestinal canal stenosis and accurate magnet butt joint method thereof

CN121971131ACN 121971131 ACN121971131 ACN 121971131ACN-121971131-A

Abstract

The invention relates to the medical field, disclose a magnetic pressing anastomosis system of intestinal canal stenosis and accurate butt joint method of magnet thereof, including, the first absorbing member; the device comprises a first absorbing part, a second absorbing part matched with the first absorbing part, a traction structure penetrating through the first absorbing part and the second absorbing part, and a limiting part positioned below the second absorbing part. The traction structure passes through the first adsorption piece and the second adsorption piece, and the accurate positioning and the butt joint of the first adsorption piece and the second adsorption piece can be realized under the guidance of an endoscope by utilizing the guiding function of the traction rope, so that the technical problem of accurate butt joint of the adsorption pieces at the upstream and downstream of the narrow section is solved. Through the combined design of the limiting piece and the blocking piece, the distance between the first adsorption piece and the second adsorption piece can be actively compressed through tightening the limiting piece, the limitation of the traditional magnetic force acting distance is broken through, and the effective treatment of long-section stenosis is realized.

Inventors

  • ZHAO GUIPING
  • ZHANG GUO
  • LI CHUN
  • LI PENG

Assignees

  • 首都医科大学附属北京友谊医院

Dates

Publication Date
20260505
Application Date
20260121

Claims (8)

  1. 1. A magnetic pressing anastomosis system for digestive endoscopy lower intestinal canal stenosis is characterized by comprising, A first absorbent member (100); A second absorbent member (200) mated with the first absorbent member (100); A traction structure (300) passing through the inside of the first and second absorbent members (100, 200), and; a limiting member (500) located below the second adsorption member (200).
  2. 2. The magnetic pressing anastomosis system for enteron stricture under a digestive endoscope of claim 1, wherein the second suction member (200) comprises a sub-magnet (201), a bonding surface (202) arranged on the surface of the sub-magnet (201), and a perforation (203) arranged inside the sub-magnet (201) and the bonding surface (202); The edge of the joint surface (202) is of an arc-shaped structure.
  3. 3. The magnetic pressing anastomosis system for digestive endoscopy lower intestinal canal stenosis of claim 2, wherein the pulling structure (300) comprises a pulling rope (301) and a hanging ring (302) connected to a top end of the pulling rope (301).
  4. 4. The magnetic compression anastomosis system for entero-stricture of a digestive endoscope of claim 3, wherein the limiting member (500) comprises a clasp (501) and a resilient plate (502) disposed on a surface of the clasp (501).
  5. 5. The magnetic compression anastomosis system for digestive endoscopy lower intestinal canal stenosis of claim 4, further comprising a blocking member (400) disposed between the second suction member (200) and a stop member (500); the blocking piece (400) comprises a baffle plate (401) and a through hole (402) formed in the baffle plate (401).
  6. 6. The magnetic pressing anastomosis system for enteron stricture under a digestive endoscope of claim 5, wherein the maximum diameter of the elastic plate (502) in the unfolded state is 2-4 mm larger than the diameter of the through hole (402), and the maximum diameter of the elastic plate (502) in the compressed state is 2-4 mm smaller than the diameter of the through hole (402).
  7. 7. The magnetic compression anastomosis system for digestive endoscopy lower intestinal canal stenosis of claim 6, wherein the first suction member (100) is configured identically to the second suction member (200).
  8. 8. A magnet precise butt joint method is characterized by comprising the magnetic pressing anastomosis system for the enteron stenosis of the digestive endoscopes according to any one of claims 1-7, and further comprising the following steps, Implanting the first absorbent member (100) transorally or stoma into a patient until reaching an upper end of a stricture; implanting the second absorbent member (200) transorally or stoma into the patient until reaching the lower end of the stricture; passing the traction structure (300) through the second suction member (200) under endoscopic guidance; Moving the blocking member (400) through the limiting member (500) between the limiting member (500) and the second adsorption member (200); The distance between the first adsorption piece (100) and the second adsorption piece (200) is compressed through the limiting piece (500), so that the first adsorption piece and the second adsorption piece are attracted through magnetic force to complete butt joint.

Description

Magnetic squeezing anastomosis system for digestive endoscopy intestinal canal stenosis and accurate magnet butt joint method thereof Technical Field The invention relates to the medical field, in particular to a magnetic pressing anastomosis system for digestive endoscopy lower intestinal canal stenosis and a magnet accurate butt joint method thereof. Background There is no effective minimally invasive treatment for the stenosis and occlusion of the anastomotic stoma after colorectal cancer surgery. A few recent individual reports have demonstrated that magnetic expression techniques can be used for intestinal tissue anastomosis. However, the magnetic squeezing anastomosis technique is still problematic in terms of the application of the magnetic squeezing anastomosis technique to the stenosis and occlusion of the digestive tract anastomotic stoma, for example, how to achieve accurate butt joint of primary and secondary magnets upstream and downstream of the stenosis, or the primary and secondary magnets have limited interaction force, and the anastomotic stoma exceeding 5mm is narrow, and the compression anastomosis cannot be achieved by utilizing the magnetic attraction effect. Disclosure of Invention Therefore, the invention aims to solve the technical problem of how to realize accurate butt joint of the narrow upstream and downstream primary and secondary magnets or not to realize compression anastomosis by utilizing the magnetic attraction effect. The technical scheme is that the magnetic squeezing anastomosis system for the enteron stenosis under the digestive endoscope comprises a first absorption part, a second absorption part matched with the first absorption part, a traction structure penetrating through the first absorption part and the second absorption part, and a limiting part positioned below the second absorption part. In a preferred embodiment of the magnetic pressing anastomosis system for the enteron stricture under the digestive endoscope, the second adsorption piece comprises a sub-magnet, a joint surface arranged on the surface of the sub-magnet and a perforation arranged inside the sub-magnet and the joint surface, and the edge of the joint surface is of an arc-shaped structure. In a preferred embodiment of the magnetic pressing anastomosis system for digestive endoscopy lower intestinal canal stenosis, the traction structure comprises a traction rope and a hanging ring connected to the top end of the traction rope. In a preferred embodiment of the magnetic pressing anastomosis system for digestive endoscopy lower intestinal canal stenosis, the limiting member comprises a buckle and an elastic plate arranged on the surface of the buckle. In a preferred embodiment of the magnetic pressing anastomosis system for digestive endoscopy lower intestinal canal stenosis, the magnetic pressing anastomosis system further comprises a blocking member arranged between the second suction member and the limiting member; the blocking piece comprises a baffle and a through hole formed in the baffle. In an optimal implementation mode of the magnetic pressing anastomosis system for the intestinal canal stenosis under the digestive endoscope, the maximum diameter of the elastic plate in the unfolded state is 2-4 mm larger than the diameter of the through hole, and the maximum diameter of the elastic plate in the compressed state is 2-4 mm smaller than the diameter of the through hole. In a preferred embodiment of the magnetic pressing anastomosis system for digestive endoscopy lower intestinal canal stenosis, the first adsorption member and the second adsorption member have the same structure. The invention also provides a precise butt joint method of the magnets. In a preferred embodiment of the method for precisely butting the magnets, the method for precisely butting the magnets comprises the magnetic pressing anastomosis system for treating the enteron stricture of the digestive endoscope, and further comprises the following steps, Implanting the first absorbent member transorally or fistulaly into the patient until reaching the upper end of the stricture; implanting the second absorbent member transorally or stoma into the patient until reaching the lower end of the stricture; passing the traction structure through the second suction member under endoscopic guidance; moving the blocking piece to a position between the limiting piece and the second adsorption piece through the limiting piece; the distance between the first adsorption piece and the second adsorption piece is compressed through the limiting piece, so that the first adsorption piece and the second adsorption piece are in butt joint through magnetic attraction. The invention has the beneficial effects that the traction structure passes through the first adsorption piece and the second adsorption piece, and the precise positioning and the butt joint of the first adsorption piece and the second adsorption piece can be realized under the gu