A Chinese-style esophageal anastomosis device

Abstract

This invention relates to a Chinese-style esophageal anastomosis device, belonging to the field of medical devices. This invention only performs anastomosis, without cutting, which reduces the average tension at the anastomosis site, decreasing the risk of anastomotic damage. It also increases the thickness of the anastomosis site, allowing for longer longitudinal sutures, resulting in a more secure and stable anastomosis. The device has a simple structure, is easy to operate, improves surgical efficiency, and reduces the incidence of postoperative anastomotic leakage. The invention includes a nozzle, a body, and a power supply. Its key feature is that a joint is provided between the nozzle and the body; the nozzle, joint, body, and power supply are sequentially fixedly connected; the joint has a corrugated tube structure and is capable of twisting; the nozzle contains a staple storage device; the nozzle has multiple staple holes; the staple storage device is detachably equipped with staples corresponding to the staple holes; the body contains a staple pushing device; and the body has a switch.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, specifically relating to a Chinese-style esophageal anastomosis device. Background Technology

[0002] With the development of technology, various surgical instruments have emerged, among which anastomosing devices are particularly important. Common digestive tract anastomosing devices form a full-thickness end-to-end anastomosis. However, because esophageal cancer surgery differs from anastomosis in the abdominal digestive tract, the anastomosis site in esophageal cancer surgery is subjected to continuous tension due to the gravity of the tubular stomach. When the anastomosis site is in the edematous phase, the tension will affect the anastomosis site, making it prone to damage and leading to anastomotic leakage.

[0003] The incidence of anastomotic leakage using traditional anastomotic devices is 12%, with cervical anastomotic leakage occurring in 10%-25% and thoracic anastomotic leakage in less than 10%. Because anastomotic leakage allows digestive fluids and food to enter the pleural cavity through the fistula, leading to local or systemic infection, it significantly increases hospital stay and costs. Preventing esophageal anastomotic leakage is a major challenge worldwide; therefore, there is a need for an anastomotic device that can make esophageal anastomoses more stable during esophageal surgery, thereby reducing the incidence of anastomotic leakage. Summary of the Invention

[0004] This invention addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing a Chinese-style esophageal anastomosis device. During esophageal anastomosis surgery, this invention enables the esophageal stump to be sutured to the tubular stomach in a folded, full-thickness manner, which can reduce the average tension at the anastomosis site and increase the thickness of the anastomosis site, thereby reducing the incidence of anastomotic leakage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] This invention provides a Chinese-style esophageal anastomosis device, comprising a nozzle, a body, and a power supply. The device is characterized by: a joint between the nozzle and the body; the nozzle, the joint, the body, and the power supply being sequentially and fixedly connected; the joint having a corrugated pipe structure and being able to rotate; a staple storage device inside the nozzle; multiple staple holes on the nozzle; a detachable staple corresponding to each staple hole on the staple storage device; a staple pushing device inside the body; and a switch on the body.

[0007] Preferably, the staple storage device includes a staple mounting block, a staple pushing block, and an inner retaining sleeve. The staple mounting block is fixed inside the gun head and is a ring-shaped column. Each staple is detachably mounted on the staple mounting block. The staple mounting block is provided with a detachable staple pushing block at each staple mounting location. A detachable inner retaining sleeve is provided on the inner ring portion of the staple mounting block.

[0008] Preferably, the pusher device includes a pusher ring, a steering joint, a rack, a motor, a rack mounting base, and a mounting block. The mounting block is fixedly installed inside the gun body and connected to the rack mounting base via a pin. The rack is slidably installed on the rack mounting base. The motor is fixedly installed on the rack mounting base and is powered by the power supply and controlled by the switch. A gear is installed on the motor output shaft, and the gear engages with the rack. The steering joint is located at one end of the rack mounting base, and the pusher ring is connected to the steering joint via a ball joint.

[0009] Preferably, it further includes a stop device, which includes a first outer ring and a second outer ring. One end of the first outer ring is hinged to one end of the second outer ring. The other end of the first outer ring is provided with a buckle, and the other end of the second outer ring is provided with a buckle stop block corresponding to the buckle. The diameter of the cylinder after the first outer ring and the second outer ring are closed is larger than the outer diameter of the gun head.

[0010] Preferably, the nail holes are evenly distributed on the gun head.

[0011] The beneficial effects of the present invention.

[0012] This invention enables the esophageal stump to be sutured to the tubular stomach in a full-thickness fold using a stapled method. Compared to traditional anastomosis, this method only provides the anastomosis without cutting. On the one hand, it can reduce the average tension at the anastomosis site, thus reducing the occurrence of anastomotic damage. On the other hand, it can also increase the thickness of the anastomosis site and the length of the longitudinal suture, resulting in a more secure and stable anastomosis. The structure is simple, the operation is convenient, and it can improve the efficiency of surgery and reduce the incidence of postoperative anastomotic leakage. Attached Figure Description

[0013] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0014] Figure 1 This is an overall side sectional view of the present invention.

[0015] Figure 2This is a schematic diagram of the overall external structure of the present invention.

[0016] Figure 3 This is a side cross-sectional view of the gun head of the present invention.

[0017] Figure 4 This is a top cross-sectional view of the gun head of the present invention.

[0018] Figure 5 This is a schematic diagram of the pusher pin device of the present invention.

[0019] Figure 6 This is a schematic diagram of the rack mounting base of the present invention.

[0020] Figure 7 This is a schematic diagram of the structure of the pin-stopping device of the present invention.

[0021] Figure 8 This is a schematic diagram of the structure of the first outer ring of the present invention.

[0022] Figure 9 This is a schematic diagram of the preparation stage of the present invention in use.

[0023] Figure 10 This is a schematic diagram of the placement stage of the present invention in use.

[0024] Figure 11 This is a schematic diagram of the matching stage of the present invention in use.

[0025] Figure 12 This is a schematic diagram of the final stage of the invention in use.

[0026] The markings in the diagram are as follows: 1 is the gun head, 2 is the anastomosis staple, 3 is the joint, 4 is the gun body, 5 is the switch, 6 is the power supply device, 7 is the pusher ring, 8 is the steering joint, 9 is the rack, 10 is the motor, 11 is the gear, 12 is the rack mounting base, 13 is the pin, 14 is the mounting block, 15 is the first outer ring, 16 is the second outer ring, 17 is the snap fastener, 18 is the snap fastener stop block, 19 is the mounting hole, 20 is the motor mounting hole, 21 is the pin mounting hole, 22 is the esophagus, 23 is the tubular stomach, 24 is the mucosal forceps, 25 is the suture, 26 is the stoma, 27 is the staple mounting block, 28 is the pusher block, 29 is the inner retaining sleeve, and 30 is the staple hole. Detailed Implementation

[0027] As shown in the attached figures, the device includes a gun head 1, a gun body 4, and a power supply device 6. A joint 3 is provided between the gun head 1 and the gun body 4. The gun head 1, joint 3, gun body 4, and power supply device 6 are fixedly connected in sequence. The joint 3 is a corrugated tube structure and can be twisted. During the operation, the angle of the gun head 1 can be adjusted according to various anastomosis conditions to meet the surgical requirements.

[0028] The gun head 1 is equipped with a staple storage device, and has multiple staple holes 30 evenly distributed on its wall. This ensures more even staple placement and more uniform stress distribution at the anastomosis site, further reducing the chance of anastomosis failure. The staple storage device is detachably equipped with anastomotic staples 2 corresponding to the staple holes 30. The anastomotic staples 2 are primarily used to staple and fix two organs requiring anastomosis. The gun body 4 contains a staple pushing device that pushes the staples 2 along the staple holes 30 from the gun head 1 for staple placement. A switch 5 is installed on the gun body 4 to control the operation and stop of the staple pushing device.

[0029] The staple storage device includes a staple mounting block 27, a staple pushing block 28, and an inner retaining sleeve 29. The staple mounting block 27 is fixed inside the nozzle head 1 and is a ring-shaped cylinder. Each staple 2 is detachably mounted on the staple mounting block 27. When not in use, the staple 2 is placed inside the staple mounting block 27. After use, staples 2 can be added to the staple mounting block 27 for reuse. Each staple 2 mounting location on the staple mounting block 27 is provided with a detachable staple pushing block 28, which can directly contact the staple 2 and push it out. A detachable inner retaining sleeve 29 is provided on the inner ring of the staple mounting block 27 to prevent the staple pushing device from getting stuck on the staple pushing block 28 when pushing it. The inner retaining sleeve 29 also acts as a conductor, allowing the staple pushing device to move smoothly inside the staple head.

[0030] The pusher device includes a pusher ring 7, a steering joint 8, a rack 9, a motor 10, a rack mounting base 12, and a mounting block 14. The mounting block 14 is fixedly installed inside the gun body 4 and is connected to the rack mounting base 12 via a pin 13. The rack mounting base 12 has a pin mounting hole 21 for fixed connection with the mounting block 14. The rack 9 is slidably installed on the rack mounting base 12. The motor 10 is fixedly installed on the rack mounting base 12, which has a motor mounting hole 20 for fixing the motor 10. The motor 10 is powered by a power supply device 6 and controlled by a switch 5. The power supply line and control line of the motor 10 are respectively connected to the power supply and switch 5 inside the power supply device 6. A gear 11 is installed on the output shaft of the motor 10. The gear 11 cooperates with the rack 9 to transmit the output of the motor 10 to the rack 9, and then the rack 9 can slide along the rack mounting base 12. The swivel joint 8 is located at one end of the rack mounting seat 12. The swivel joint 8 is ball-jointed and equipped with a pusher ring 7. The angle of the pusher ring 7 can be changed accordingly to cooperate with the torsion of the joint 3, so that the pusher ring 7 can smoothly enter the gun head 1. The pusher ring 7 is driven by the rack 9 to move. After entering the gun head 1, it squeezes the inner soft sleeve 29 and indirectly pushes the anastomosis nail 2.

[0031] It also includes a pin-stopping device, which includes a first outer ring 15 and a second outer ring 16. One end of the first outer ring 15 is hinged to one end of the second outer ring 16. The hinged end of the first outer ring 15 and the second outer ring 16 has a mounting hole 19, which allows the first outer ring 15 and the second outer ring 16 to open and close relative to each other. The other end of the first outer ring 15 is provided with a buckle 17, and the other end of the second outer ring 16 is provided with a buckle stop 18 corresponding to the buckle 17. The buckle 17 and the buckle stop 18 cooperate with each other to close and fix the first outer ring 15 and the second outer ring 16, forming a cylindrical shape. It is mainly used to be placed on the outside of the organ that needs to be anastomosed during surgery. When the anastomosis staple 2 is pushed out from inside the organ, it presses against the inner wall of the pin-stopping device to fix the anastomosis staple 2 on the organ. The diameter of the cylinder after the first outer ring 15 and the second outer ring 16 are closed is larger than the outer diameter of the gun head 1, so that the gun head 1 can be wrapped, so that the anastomosis staple 2 can press against the inner wall of the pin-stopping device.

[0032] Usage instructions and steps.

[0033] 1. Preparation stage: Free the esophagus 22 and stomach, remove most of the esophagus 22 and part of the stomach, and make a tubular stomach 23. Clamp the entire thickness of the esophageal stump 22 with mucosal forceps, pass the suture 25 through the end of the esophageal stump 22 for traction, and make a stoma 26 incised on the side wall of the tubular stomach 23.

[0034] 2. Placement stage: The mucosal forceps 24 pull the esophagus 22 around the outside of the tubular stomach 23, and the esophagus 22 and the tubular stomach 23 are sutured together with protein sutures. The anastomosing device is inserted from the stoma 26 into the tubular stomach 23 and the esophagus 22. The joint 3 is twisted so that the nozzle 1 is at the junction of the esophagus 22 and the tubular stomach 23.

[0035] 3. Anastomosis stage: Place the pin-stopping device outside the joint, and the first outer ring 15 and the second outer ring 16 close and lock together, completely surrounding the joint. Press the switch 5, and the motor 10 works to push the pin-pushing ring 7 into the pin head through the transmission. The pin-pushing ring 7 squeezes the pin-pushing block 28 and pushes the anastomotic pin 2 out from the pin hole 30. A ring of anastomotic pins 2 pins the esophagus 22 and the tubular stomach 23 together and presses against the inner wall of the pin-stopping device to complete the pinning and fixing.

[0036] 4. Final stage: Open the buckle 17 to open the first outer ring 15 and the second outer ring 16, remove the pin stop device, then remove the stapler from the stoma 26, cut the suture 25, and then suture the stoma 26 to complete the operation.

[0037] It is understood that the above specific description of the present invention is only for illustrating the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of the present invention.

Claims

1. A Chinese-style esophageal anastomosis device, comprising a nozzle (1), a nozzle body (4), and a power supply device (6), characterized in that: A joint (3) is provided between the gun head (1) and the gun body (4). The gun head (1), the joint (3), the gun body (4), and the power supply device (6) are fixedly connected in sequence. The joint (3) is a corrugated tube structure and can be twisted. A nail storage device is provided inside the gun head (1). Multiple nail holes (30) are provided on the gun head (1). The nail holes (30) are evenly arranged on the gun head (1). The nail storage device is detachably provided with matching nails (2) corresponding to the nail holes (30). A nail pusher device is provided inside the gun body (4). A switch (5) is provided on the gun body (4). It also includes a pin stop device, which includes a first outer ring (15) and a second outer ring (16). One end of the first outer ring (15) is hinged to one end of the second outer ring (16). The other end of the first outer ring (15) is provided with a buckle (17). The other end of the second outer ring (16) is provided with a buckle stop block (18) corresponding to the buckle (17). The cylinder diameter after the first outer ring (15) and the second outer ring (16) are closed is larger than the outer diameter of the gun head (1).

2. The Chinese-style esophageal anastomosis device according to claim 1, characterized in that: The staple storage device includes a staple mounting block (27), a staple pushing block (28), and an inner retaining sleeve (29). The staple mounting block (27) is fixed inside the gun head (1). The staple mounting block (27) is a ring-shaped column. Each of the staples (2) can be detachably mounted on the staple mounting block (27). The staple mounting block (27) is provided with a detachable staple pushing block (28) at each staple (2) mounting location. The inner ring portion of the staple mounting block (27) is provided with a detachable inner retaining sleeve (29).

3. The Chinese-style esophageal anastomosis device according to claim 1, characterized in that: The pusher device includes a pusher ring (7), a steering joint (8), a rack (9), a motor (10), a rack mounting seat (12), and a mounting block (14). The mounting block (14) is fixedly installed inside the gun body (4). The mounting block (14) is connected to the rack mounting seat (12) via a pin (13). The rack (9) is slidably installed on the rack mounting seat (12). The motor (10) is fixedly installed on the rack mounting seat (12). The motor (10) is powered by the power supply device (6) and controlled by the switch (5). A gear (11) is installed on the output shaft of the motor (10). The gear (11) cooperates with the rack (9). The steering joint (8) is located at one end of the rack mounting seat (12). The steering joint (8) is connected to the pusher ring (7) via a ball joint.

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