Valve and valve fixing device

Abstract

According to the valve and the valve fixing device, the esophagus and the fundus of stomach do not need to be folded, only one auxiliary valve for shielding regurgitation of contents in the stomach is added, the normal physiological anatomical structure of the esophagus and the fundus of stomach does not change, the fixation is realized by simply suturing soft medical sutures, and the problem of regurgitation of food is solved; an operation performed through the device and the valve has a small tissue damage range and small damage amplitude, and in addition, the device and the valve are simple in structure, low in manufacturing cost, easy to install and few in operation steps; in the operation process, ultrasonic guidance is not needed, a hard anastomat is not needed, and detachment or / and replacement of valve separation are / is facilitated in the future.

Description

Technical Field

[0001] The present invention relates to a treatment device, in particular to a valve and a valve fixing device. Background Art

[0002] Gastroesophageal reflux disease (GERD) is defined as symptoms of mucosal damage caused by the reflux of gastric contents into the esophagus. Possible causes of GERD include lower esophageal sphincter abnormalities, hiatal hernia, abnormal esophageal contractions, and slow gastric emptying. Currently, there are three treatment options for GERD: 1. Drug treatment: Drug treatment is mainly to relieve local symptoms, but it is difficult to completely prevent reflux; 2. Folding the stomach wall tissue to reconstruct the structure of the gastric fundus and esophagus. However, this method has complex instrumentation, high production costs, multiple operating steps, significant changes in the normal physiological and anatomical structure of the esophagus and gastric fundus, a wide range and degree of tissue damage, and is difficult to disassemble and replace. 3. For example, in the US patent publication number US9855125B2, the opening or closing of a magnetic ring is used to drive the contraction of the sphincter. However, the above method requires the installation of sensors and other structures, which is costly.

[0003] In summary, how to achieve the treatment of gastroesophageal reflux disease, reduce treatment costs, and reduce harm to the human body has become an urgent problem that researchers in this field need to solve. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: how to achieve the treatment of gastroesophageal reflux disease, reduce the treatment cost and reduce the harm to the human body; In order to solve the above technical problems, the technical solution adopted by the present invention is: The present invention is a valve used to prevent the contents in the stomach from flowing back into the esophagus, comprising: a valve body, which has a notch when the valve body is in a flattened sheet structure, and the width of the notch gradually decreases along the outer side of the valve body toward the center; two fixing rings used to connect with the esophageal folds, which are connected to the valve body and are symmetrical on both sides of the notch; the left and right sides of the valve body are folded downward to form side skirts, and the two fixing rings are brought close to cover the notch to switch the valve body from the flattened state to the installed state; the valve body in the installed state is a structure with the middle part arched upward.

[0005] Furthermore, when the valve body is in a flattened state, an annular groove is provided on one side of the valve body facing the stomach body to facilitate arching.

[0006] Furthermore, the valve body is symmetrically provided with a first groove on one side facing the stomach body, one end of the first groove is connected to the annular groove, and the other end extends to the outer contour of the valve body away from the fixing ring, and the part of the valve body located between the two first grooves is the distal folded skirt.

[0007] Furthermore, the valve body is symmetrically provided with a second groove on one side facing the stomach body, one end of the second groove is connected to the annular groove, and the other end extends to the outer contour of the valve body close to the fixing ring, and the part of the valve body located between the two second grooves is the side skirt.

[0008] Furthermore, when the valve body is in the installed state, the two fixing rings are arranged in two horizontal states, or in a coaxial state relative to each other, or in a left-right symmetrical coplanar state.

[0009] The present invention also provides a valve fixing device, which is used to fix the valve on the esophageal fold on the cardia side of the digestive tract; it includes: an endoscopic suturing device, a valve clamp ring arranged on the outer peripheral wall of the endoscopic suturing device, and ring boxes are provided at both ends of the valve clamp ring. The ring box is used to open a fixing ring, and the fixing ring is located at the needle entry hole or needle exit hole of the endoscopic suturing device.

[0010] Furthermore, the portion of the valve body away from the fixing ring is hung on the inner peripheral wall of the endoscopic suturing device.

[0011] Beneficial effects of the present invention: The present invention is a valve and a valve fixing device. The present invention does not require folding the esophagus and the gastric fundus, but only adds an auxiliary valve to block the reflux of gastric contents. The normal physiological and anatomical structures of the esophagus and the gastric fundus are almost unchanged. Fixation is simply suturing with soft medical sutures. Specifically, the valve is fixed to the esophageal fold through the valve fixing device. When eating normally, food falls onto the valve body in the installed state. At this time, the valve body as a whole is turned downward around the connection between the fixing ring and the esophageal fold. At this time, an open gap for food to enter is formed between the valve body and the esophageal fold; after eating is completed, the valve body is rotated and reset; when reflux occurs, the food in the stomach impacts upward and acts on the bottom surface of the valve body. Since the valve body is an upward arched structure, the shape is not easily destroyed by the impact of food, thereby solving the problem of food reflux. Surgeries performed using this device and valve cause limited tissue damage and minimal damage. The device and valve have simple structures, low manufacturing costs, easy installation, and few operating steps. During the operation, no ultrasonic guidance or rigid anastomosis device is required, making it easy to separate, disassemble, and / or replace the device and valve in the future. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and examples.

[0013] Figure 1 1 is a schematic diagram of the front structure of the valve of the present invention; Figure 2 1 is a schematic diagram of the reverse structure of the valve of the present invention; Figure 3 It is a schematic diagram of the structure of the first valve in the installed state; Figure 4 is a schematic diagram of the structure of the second valve in an installed state; Figure 5 It is a schematic diagram of the structure of the third valve in the installed state; Figure 6 This is a diagram of the coordination between the valve clamp ring and the ring gate; Figure 7 This is a diagram of the coordination between the valve clamp ring and the anastomosis device; Figure 8 This is a diagram of the coordination of the valve clamp ring, anastomosis device, and valve; Figure 9 This is a diagram of the valve's state during eating; Figure 10 This is a diagram of the valve status when regurgitation occurs. DETAILED DESCRIPTION

[0014] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0015] This embodiment is a valve. The valve 1 is fixed to the esophageal fold 01 on the cardia side of the digestive tract to prevent the contents of the stomach from flowing back into the esophagus. Figure 1 This is a structural schematic diagram of the valve body 11 in a flattened state. In the figure, a notch 12 is opened at the lower part of the valve body 11. The notch 12 gradually decreases in width along the radial direction of the valve body 11. Fixed rings 13 are respectively provided on the left and right sides of the bottom of the valve body 11. The fixed rings 13 are used to connect with the esophageal fold 01. There is a notch 12 between the two fixed rings 13. The parts on the left and right sides of the valve body 11 that are connected to the fixed rings 13 are side skirts 14.

[0016] See also Figure 2 When the valve body 11 is in the installed state, the two fixing rings 13 are close to and fixed on the esophageal fold 01, and the side skirt 14 is folded downward. At this time, the notch 12 provides space for the side skirt 14 to fold, and the folded valve body 11 is a arched structure with the middle part upward.

[0017] See also Figure 9During normal eating, food falls onto the installed valve body 11. The valve body 11 then flips downward around the connection between the fixing ring 13 and the esophageal fold 01. An open gap is formed between the valve body 11 and the esophageal fold 01 for food to enter. After eating, the valve body 11 rotates back to its original position. See also Figure 10 When reflux occurs, the food in the stomach impacts upward and acts on the bottom surface of the valve body 11. Since the valve body 11 is an upward arched structure, this shape is not easily destroyed by the impact of food, so the valve body 11 prevents the reflux of food.

[0018] In order to facilitate the upward arching of the valve body, in this embodiment, an annular groove 15 is provided on the side of the valve body 11 facing the stomach, that is, at the center of the bottom surface of the valve body 11. When the valve body 11 is in a flattened state, the groove spacing of the annular groove 15 is equal; when the valve body 11 is in an installed state, the middle part of the valve body 11 arches upward, and the groove spacing of the annular groove 15 decreases due to the upward arch; by setting the annular groove 15, the upward arching of the valve body 11 can be guided.

[0019] See also Figure 2 In order to facilitate the passage of food and prevent food reflux, the present embodiment adopts a side of the valve body 11 facing the stomach body, that is, the bottom surface of the valve body 11, which is symmetrically provided with two first grooves 16. One end of one first groove 16 is connected to the annular groove 15, and the other end extends obliquely to the upper left; the other first groove 16 has one end connected to the annular groove 15, and the other end extends obliquely to the upper right. The portion between the two first grooves 16 is a distal folded skirt 17. In this embodiment, the purpose of providing the two first grooves 16 is to facilitate the turning of the distal folded skirt 17. When the valve body 11 is in a flattened state, the groove spacing of the first grooves 16 is equal. When the distal folded skirt 17 is turned, the groove spacing of the first grooves 16 decreases. During normal feeding, food falls onto the installed valve body 11. In addition to the valve body 11 rotating downward as a whole, the distal folded skirt 17 on the side away from the fixing ring 13 is also folded downward, which further increases the open gap between the valve body 11 and the esophageal fold 01 and improves the efficiency of feeding. When reflux occurs, the bottom of the distal folded skirt 17 is impacted by food, and the distal folded skirt 17 and other parts of the valve body 11 form an upward arched state. This shape is not easily destroyed by the impact of food, so the valve body prevents the reflux of food.

[0020] See also Figure 2In order to facilitate the folding of the side skirt, in this embodiment, two second grooves 18 are symmetrically opened on the side of the valve body 11 facing the stomach body, that is, the bottom surface of the valve body 11. One end of one second groove 18 is connected to the annular groove 15, and the other end extends obliquely to the lower left; one end of the other second groove 18 is connected to the annular groove, and the other end extends obliquely to the lower right. The part between the two second grooves 18 is the side skirt 14; In this embodiment, the purpose of providing the two second grooves 18 is to facilitate the folding of the side folding skirt 19. When the valve body 11 is in a flattened state, the groove spacing of the second grooves 18 is equal. When the side folding skirt 19 is flipped, the groove spacing of the second grooves 18 decreases.

[0021] The part of the diaphragm body 11 formed by the second line groove 18 and the first line groove 16 is a side folded skirt 19. The side folded skirts 19 are distributed on the left and right sides of the diaphragm body 11. In this way, the function of the side folded skirt 19 is consistent with that of the distal folded skirt 17.

[0022] In order to illustrate the position setting of the two fixing rings 13 when the valve body is in the installed state, this embodiment adopts the valve body 11 in the installed state, and the two fixing rings 13 are set to two horizontal states (see Figure 3 ), or the two fixing rings 13 are set to a coaxial state relative to each other (see Figure 4 ), or the two fixing rings 13 are set to a left-right symmetrical coplanar state (see Figure 5 ).

[0023] See also Figure 6 、 7 8. How to fix the valve on the esophageal fold 01 on the cardia side of the digestive tract. The present invention also discloses a valve fixing device, including: an endoscopic suturing device 2 adopts the suturing device in the Chinese patent with publication number CN219661796U, a valve clamp ring 31 is arranged on the outer peripheral wall of the endoscopic suturing device, the valve clamp ring 31 is an arc-shaped structure, and a ring box 32 is respectively provided at both ends of the valve clamp ring 31. The ring box 32 has an arc-shaped cavity, and a part of the fixing ring 13 is clamped in the cavity, and the ring box 32 positions the fixing ring at the needle inlet 21 or the needle outlet 22 of the endoscopic suturing device 2; the part of the valve body away from the fixing ring is hung on the inner peripheral wall of the endoscopic suturing device.

[0024] When the valve 1 is fixed to the esophageal fold 01, the grasper of the endoscope grasps the target part inside the esophageal fold 01, and places the target part between the needle entry hole and the needle exit hole of the endoscope suturing device. The needle is inserted, the thread is threaded, and the two fixing rings of the valve located in the two ring boxes are pulled out. The thread is threaded and knotted. After tying the knot, the two fixing rings of the valve are fixed on both sides of the target part. The valve is fixed and clamped on the target part of the esophageal fold 01 by the two fixing rings of the valve.

[0025] Specific surgical steps: After the gastroscope reaches the fundus of the stomach, reverse the gastroscope to confirm, and the cardia lip can be seen; adjust the gastroscope (look directly at the endoscope) and withdraw it to the distal end of the dentate line; the grasper of the endoscope grasps one side of the tissue distal to the dentate line; insert the needle, and the suture needle passes through one of the fixing rings, through the target suture site, through the other fixing ring, and the suture needle enters the needle channel chute. After the suture needle completely enters the needle channel chute, pull out the thread (suture) or use the grasper to gently pull the two fixing rings out of the corresponding clamping ring box. After pulling them out, continue to suture continuously. After suturing, thread the thread and use the grasper and knot pusher to tie the knot. During the knotting process, use the grasper to adjust the tissue position (if the gastroscope is reversed, it is directly fixed to the proximal end of the tissue to be fixed) to avoid slipping the knot; use the wire cutters to cut the suture thread and the pull rope between the two fixing rings (and remove them); withdraw the scope, remove the suturer, and the process is completed.

[0026] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A valve for preventing the contents of the stomach from flowing back into the esophagus, characterized in that: include: A valve body, wherein the valve body has a notch when in a flattened sheet structure; Two fixing rings for connecting to the esophageal folds, which are connected to the valve body and symmetrically located on both sides of the notch; The left and right sides of the valve body are folded downward to form side skirts, and the two fixing rings are brought close to cover the notch to switch the valve body from a flattened state to an installed state; The valve body in the installed state is a structure with an upward arch in the middle.

2. A valve according to claim 1, characterized in that: When the valve body is in a flattened state, a side of the valve body facing the stomach body is provided with an annular groove for facilitating arching.

3. A valve according to claim 2, characterized in that: The valve body is symmetrically provided with a first groove on one side facing the stomach body, one end of the first groove is connected to the annular groove, and the other end extends to the outer contour of the valve body away from the fixing ring. The part of the valve body located between the two first grooves is the distal folded skirt.

4. A valve according to claim 2, characterized in that: The valve body is symmetrically provided with a second groove on one side facing the stomach body, one end of the second groove is connected to the annular groove, and the other end extends to the outer contour of the valve body close to the fixing ring. The part of the valve body located between the two second grooves is the side skirt.

5. The valve according to claim 1, characterized in that: When the valve body is in the installed state, the two fixing rings are arranged in two horizontal states, or in a coaxial state relative to each other, or in a left-right symmetrical coplanar state.

6. The valve according to claim 1, characterized in that: The width of the notch gradually decreases along the outer side of the valve body toward the center.

7. A valve fixing device for fixing a valve according to any one of claims 1 to 6 to the esophageal fold on the cardia side of the digestive tract; characterized in that: include: An endoscopic suturing device, a valve clamp ring arranged on the outer peripheral wall of the endoscopic suturing device, and ring boxes are provided at both ends of the valve clamp ring. The ring boxes are used to open a fixing ring, and the fixing ring is located at the needle entry or exit hole of the endoscopic suturing device.

8. The valve fixing device according to claim 7, characterized in that: The portion of the valve body away from the fixing ring is hung on the inner peripheral wall of the endoscopic suturing device.

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