A cardiac anastomosis protection device

Abstract

This invention relates to the field of anastomosis protection and technology, and in particular to a pyloric anastomosis protection device. It includes a conveyor, with a flexible tube sleeved on the outer side of the conveyor. The inner side of the flexible tube is tightly attached to the outer side of the conveyor. An airbag assembly is fixedly connected to the outer side of the flexible tube. When deflated, the airbag assembly is attached to the outer surface of the flexible tube, and the flexible tube is attached to the outer side of the conveyor. When inflated, the airbag assembly bulges on the outer side of the flexible tube, causing the flexible tube to deform into a smooth-walled tube, with the inner surface of the flexible tube detaching from the outer side of the conveyor. This invention uses three airbags supported at the upper, middle, and lower parts of the anastomosis, achieving stable and reliable installation of the protection device, thus providing good protection for the anastomosis and preventing secondary damage. The airbag structure of this invention is soft and leak-proof, with a smooth, non-stick inner wall, and elasticity to accommodate local peristalsis, enabling automatic degradation and discharge.

Description

Technical Field

[0001] This invention relates to the field of anastomosis protection and technology, and in particular to a cardiac anastomosis protection device. Background Technology

[0002] Esophagogastric or esophagoenterostomy during gastric cardia cancer surgery requires protection of the anastomosis site to avoid complications such as anastomotic infection, stenosis, poor healing, or even anastomotic leakage. Currently, stainless steel covered esophageal stents are used clinically for support and protection, but these products have problems such as difficulty in removal, easy displacement, poor compliance, and significant foreign body sensation. Summary of the Invention

[0003] This application addresses the shortcomings of existing production technologies by providing a cardiac anastomosis protection device. This device is a specialized protective device designed for the anastomosis site after esophagogastric or esophagointestinal anastomosis. It can be stably and reliably installed at the anastomosis site to protect the anastomosis and prevent secondary damage. The airbag structure of this invention is soft and leak-proof, with a smooth inner wall that does not stick to substances, and has elasticity to adapt to local peristalsis. It can also automatically degrade and discharge substances.

[0004] The technical solution adopted in this invention is as follows:

[0005] A pyloric anastomosis protection device includes a conveyor, a flexible tube sleeved on the outer side of the conveyor, the inner side of the flexible tube tightly attached to the outer side of the conveyor, and an airbag assembly fixedly connected to the outer side of the flexible tube. When the airbag assembly is not inflated, it is deflated and attached to the outer side of the flexible tube, and the flexible tube is deflated and attached to the outer side of the conveyor. When the airbag assembly is inflated, it can bulge on the outer side of the flexible tube, and the flexible tube is deformed into a tube with a smooth inner cavity by the inflation of the airbag assembly, and the inner surface of the flexible tube is separated from the outer side of the conveyor. A tube groove structure is provided axially on the outer side of the conveyor, and an inflation tube assembly is connected within the tube groove structure. The inlet and outlet of the inflation tube assembly and the airbag assembly are connected, and the inflation tube assembly can inflate the airbag assembly.

[0006] Furthermore, the conveyor is provided with an axially penetrating guide hole, through which a guide wire passes, with the upper and lower ends of the guide wire extending out of the conveyor.

[0007] Furthermore, the conveyor has a columnar structure, and the outer surface of the conveyor has an uneven surface.

[0008] Furthermore, a traction line is connected to the upper end of the conveyor, and length markings are marked on the traction line.

[0009] Furthermore, the airbag assembly includes a first airbag, a second airbag, and a third airbag, which are distributed sequentially from top to bottom along the tubing. At least one first airbag is provided, and after inflation, the first airbag can adhere tightly to the esophageal wall surface above the anastomosis. At least one second airbag is provided, and the second airbag can cover the entire anastomosis area. After inflation, the second airbag can adhere tightly to the surface of the anastomosis area. At least one third airbag is provided, and after inflation, the third airbag can adhere tightly to the surface of the gastric or intestinal wall below the anastomosis.

[0010] Furthermore, the surface of the first airbag is provided with multiple protruding structures.

[0011] Furthermore, an adsorption strip is provided on the surface of the second airbag. The adsorption strip serves as a carrier for disinfection, hemostasis, and anti-infection drugs at the anastomosis site, and can adsorb the drugs inside.

[0012] Furthermore, the tube structure includes a first tube, a second tube, and a third tube arranged side by side along the axial direction on the outer surface of the conveyor. The inflation tube assembly includes a first inflation tube, a second inflation tube, and a third inflation tube. The first inflation tube is connected to the first tube, and the outlet end of the first inflation tube is connected to the inlet end of the first airbag. The second inflation tube is connected to the second tube, and the outlet end of the second inflation tube is connected to the inlet end of the second airbag. The third inflation tube is connected to the third tube, and the outlet end of the third inflation tube is connected to the inlet end of the third airbag.

[0013] Furthermore, one-way valves are provided at the air inlet ends of the first airbag, the second airbag, and the third airbag.

[0014] Furthermore, both the airbag assembly and the hose are made of biodegradable materials.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention utilizes three airbags supported at the upper, middle, and lower parts of the anastomosis, achieving stable and reliable installation of the protective device. This provides excellent protection for the anastomosis, preventing secondary damage. The airbags are soft yet leak-proof, with smooth, non-stick inner walls, and elasticity to accommodate local peristalsis, enabling automatic degradation and discharge. The first airbag has multiple protruding structures on its surface, allowing it to better integrate with the esophageal wall and preventing slippage. The second airbag has an adsorption strip on its surface, serving as a carrier for disinfectant, hemostatic, and anti-infective drugs. This strip adsorbs the drugs, ensuring a continuous supply of these drugs to the anastomosis. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present invention in an unused state.

[0018] Figure 2 This is a structural diagram of the present invention in its usage state.

[0019] Figure 3 This is a structural diagram of the airbag of the present invention.

[0020] Figure 4 This is a structural diagram of the conveyor of the present invention.

[0021] Wherein: 100, conveyor; 110, traction line; 200, airbag assembly; 210, first airbag; 211, protruding structure; 220, second airbag; 221, adsorption strip; 230, third airbag; 300, hose; 400, guide wire; 500, tube groove structure; 510, first tube groove; 520, second tube groove; 530, third tube groove; 600, inflation tube assembly; 610, first inflation tube; 620, second inflation tube; 630, third inflation tube. Detailed Implementation

[0022] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0023] like Figure 1 and Figure 2 As shown, a pyloric anastomosis protection device includes a columnar delivery device 100. A flexible tube 300 is sleeved on the outer side of the delivery device 100, and the inner side of the flexible tube 300 is tightly attached to the outer side of the delivery device 100. An airbag assembly 200 is fixedly connected to the outer side of the flexible tube 300. When the airbag assembly 200 is not inflated, it collapses onto the outer surface of the flexible tube 300, and the flexible tube 300 is also collapsed onto the outer side of the delivery device 100. When the airbag assembly 200 is inflated, it bulges on the outer side of the flexible tube 300. At this time, the flexible tube 300 is deformed into a tube with a smooth inner cavity by the inflation of the airbag assembly 200, and the inner surface of the flexible tube 300 detaches from the outer side of the delivery device 100. The delivery device 100 is mainly used to deliver the airbag assembly 200 to the anastomosis position. After the airbag assembly 200 is inflated, the inner surface of the flexible tube 300 detaches from the outer side of the delivery device 100, and the delivery device 100 is removed from the body.

[0024] like Figure 1 As shown, the conveyor 100 is provided with an axially penetrating guide hole, and a guide wire 400 passes through the guide hole. The upper and lower ends of the guide wire 400 extend out of the conveyor 100, and the guide wire 400 plays a guiding role in the setting of the conveyor 100.

[0025] like Figure 1 As shown, the outer surface of the conveyor 100 is an uneven surface. A tube groove structure 500 is provided along the axial direction on the outer surface of the conveyor 100. An inflation tube group 600 is connected in the tube groove structure 500. The inflation tube group 600 and the air inlet and outlet of the airbag group 200 are connected. The airbag group 200 can be inflated through the inflation tube group 600.

[0026] like Figure 1 and Figure 2 As shown, the upper end of the conveyor 100 is connected to the traction line 110, and the length dimension is marked on the traction line 110. The depth position of the conveyor 100 is quantitatively determined by the traction line 110.

[0027] like Figure 3 and Figure 4 As shown, the airbag assembly 200 includes a first airbag 210, a second airbag 220, and a third airbag 230, which are distributed sequentially from top to bottom along the hose 300.

[0028] like Figure 3 As shown, at least one first air bladder 210 is provided. After inflation, the first air bladder 210 can fit tightly against the esophageal wall surface above the anastomosis. The surface of the first air bladder 210 is provided with multiple protruding structures 211. In use, the first air bladder 210 is located in the esophagus above the anastomosis. Since the esophageal wall is relatively hard, the protruding structures 211 can allow the first air bladder 210 to better fit against the esophageal wall and prevent the first air bladder 210 from slipping in the esophagus.

[0029] like Figure 3 As shown, at least one second airbag 220 is provided, which can cover the entire anastomosis area. After inflation, the second airbag 220 can adhere tightly to the surface of the anastomosis area. An adsorption strip 221 is provided on the surface of the second airbag 220. The adsorption strip 221 serves as a carrier for disinfection, hemostasis, and anti-infection drugs for the anastomosis, adsorbing the drugs within it. After the second airbag 220 is inflated and deployed at the anastomosis, it supports the anastomosis to prevent stenosis while the drugs on the adsorption strip 221 come into contact with the anastomosis, thereby continuously providing disinfection, hemostasis, and anti-infection drugs to the anastomosis.

[0030] like Figure 3 As shown, at least one third airbag 230 is provided. The surface of the third airbag 230 is smooth. After inflation, the third airbag 230 can adhere tightly to the surface of the gastric or intestinal wall below the anastomosis to form a sliding positioning.

[0031] like Figure 4 As shown, the tube groove structure 500 includes a first tube groove 510, a second tube groove 520, and a third tube groove 530 arranged side by side along the axial direction on the outer surface of the conveyor 100. Figure 2As shown, the inflation tube assembly 600 includes a first inflation tube 610, a second inflation tube 620, and a third inflation tube 630. The first inflation tube 610 is fitted into a first tube groove 510, and its outlet end is connected to the inlet end of a first airbag 210. The second inflation tube 620 is fitted into a second tube groove 520, and its outlet end is connected to the inlet end of a second airbag 220. The third inflation tube 630 is fitted into a third tube groove 530, and its outlet end is connected to the inlet end of a third airbag 230. After inflation, the first inflation tube 610, the second inflation tube 620, and the third inflation tube 630 can be removed from the body.

[0032] One-way valves are provided at the air inlet ends of the first airbag 210, the second airbag 220, and the third airbag 230, which allow for one-way inflation to the air inlet ends of the first airbag 210, the second airbag 220, and the third airbag 230.

[0033] Both the airbag assembly 200 and the tubing 300 of this invention are made of biodegradable materials, so as to achieve the effect of material degradation, airbag deflation, and structural fragmentation and discharge from the body after a predetermined time, thus avoiding the difficulty of device removal and secondary damage to the anastomosis. X-ray imaging marks are provided on the airbag assembly 200 for determining the installation position.

[0034] The method of using this invention is as follows: After the patient completes gastric cardia surgery, the anastomosis is checked to ensure it is well-sealed, and the diameters of the esophagus, anastomosis, and the gastric or intestinal lumen below the anastomosis are obtained. Then, an inflation plan for the balloon assembly 200 is developed, and a suitable balloon assembly 200 specification is selected. Under endoscopy, the balloon assembly 200 and the tubing 300 are placed into the predetermined position along the guide wire 400 using the delivery device 100. Next, the balloon assembly 200 is inflated through the inflation tubing 600, so that the first balloon 210 adheres to the esophageal wall, the second balloon 220 adheres to the anastomosis, and the third balloon 230 adheres to the inner wall of the stomach or intestine. After the balloon 200 inflation and installation are completed, the delivery device 100 and the inflation tubing 600 are removed. Both the airbag assembly 200 and the hose 300 of the present invention are made of biodegradable materials, so as to achieve the effect of material degradation, airbag deflation, and structural fragmentation and discharge from the body after a predetermined time, which can eliminate the difficulty of device removal and secondary damage to the anastomosis.

[0035] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A pyloric anastomosis protection device, comprising a conveyor (100), characterized in that: A flexible tube (300) is fitted over the outer side of the conveyor (100). The inner side of the flexible tube (300) is tightly attached to the outer side of the conveyor (100). An airbag assembly (200) is fixedly connected to the outer side of the flexible tube (300). When the airbag assembly (200) is not inflated, it is deflated and attached to the outer side of the flexible tube (300). When the flexible tube (300) is inflated, it can bulge on the outer side of the flexible tube (300). 00) The airbag assembly (200) is inflated and transformed into a smooth inner tube, and the inner surface of the hose (300) is separated from the outer side of the conveyor (100); a tube groove structure (500) is provided along the axial direction on the outer side of the conveyor (100), and an inflation tube assembly (600) is connected in the tube groove structure (500). The inlet and outlet of the inflation tube assembly (600) and the airbag assembly (200) are connected, and the inflation tube assembly (600) can inflate the airbag assembly (200).

2. The anastomotic protection device for the cardia as described in claim 1, characterized in that: The conveyor (100) is provided with an axially penetrating guide hole, through which a guide wire (400) passes, and the upper and lower ends of the guide wire (400) extend out of the conveyor (100).

3. The anastomotic protection device for the cardia as described in claim 2, characterized in that: The conveyor (100) has a columnar structure and the outer side of the conveyor (100) has an uneven surface.

4. The anastomotic protection device for the cardia as described in claim 3, characterized in that: The upper end of the conveyor (100) is connected to the traction line (110), and the length dimension is marked on the traction line (110).

5. The anastomotic protection device for the cardia as described in claim 4, characterized in that: The airbag assembly (200) includes a first airbag (210), a second airbag (220), and a third airbag (230). The first airbag (210), the second airbag (220), and the third airbag (230) are distributed from top to bottom along the tubing (300). At least one first airbag (210) is provided. After inflation, the first airbag (210) can adhere tightly to the esophageal wall surface above the anastomosis. At least one second airbag (220) is provided. The second airbag (220) can cover the entire anastomosis area. After inflation, the second airbag (220) can adhere tightly to the surface of the anastomosis area. At least one third airbag (230) is provided. After inflation, the third airbag (230) can adhere tightly to the surface of the gastric or intestinal wall below the anastomosis.

6. The anastomotic protection device for the cardia as described in claim 5, characterized in that: The surface of the first airbag (210) is provided with a plurality of protruding structures (211).

7. The anastomotic protection device for the cardia as described in claim 6, characterized in that: The surface of the second airbag (220) is provided with an adsorption strip (221). The adsorption strip (221) serves as a carrier for anastomotic disinfection, hemostasis, and anti-infection drugs, and can adsorb the drugs inside.

8. The anastomotic protection device for the esophageal sphincter as described in claim 7, characterized in that: The tube structure (500) includes a first tube (510), a second tube (520) and a third tube (530) arranged side by side along the axial direction on the outer side of the conveyor (100). The inflation tube group (600) includes a first inflation tube (610), a second inflation tube (620) and a third inflation tube (630). The first inflation tube (610) is connected to the first tube (510), and the air outlet of the first inflation tube (610) is connected to the air inlet of the first airbag (210). The second inflation tube (620) is connected to the second tube (520), and the air outlet of the second inflation tube (620) is connected to the air inlet of the second airbag (220). The third inflation tube (630) is connected to the third tube (530), and the air outlet of the third inflation tube (630) is connected to the air inlet of the third airbag (230).

9. The anastomotic protection device for the cardia as described in claim 8, characterized in that: One-way valves are provided at the air inlet end of the first airbag (210), the air inlet end of the second airbag (220), and the air inlet end of the third airbag (230).

10. The anastomotic protection device for the cardia as described in claim 9, characterized in that: Both the airbag assembly (200) and the hose (300) are made of biodegradable materials.

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