Retractable mucosa and intrinsic muscle layer separation supporting device

Abstract

The invention discloses a mucosa and inherent muscle layer separating and supporting device with a telescopic function, and relates to the technical field of medical instruments.The device comprises an operation assembly and a supporting assembly, the supporting assembly comprises a head sheathing canal, a head block and a supporting column, and the inner wall of the head sheathing canal is slidably connected with the head block; two symmetrical balls are fixedly embedded in the inner wall of the head block, the two supporting columns are connected through a spring and used for supporting the mucosa and the intrinsic muscle layer, one supporting column is provided with a groove corresponding to the balls and connected with the balls in a clamped mode, and the operation assembly is used for operating the supporting assembly to support the mucosa and the intrinsic muscle layer. The supporting assembly can reach the operation view through an operation hole channel of an endoscope, the supporting assembly can be conveniently and flexibly released between an incised mucous membrane layer and an incised intrinsic muscle layer, the mucous membrane layer and the incised intrinsic muscle layer are stably and continuously maintained to be separated, the clear operation view is provided for an operator in the operation process, the operation efficiency is improved, and operation complications are reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a mucosa and muscularis propria separation support device with a stretchable function. Background Technology

[0002] Endoscopic submucosal dissection (ESD) is a fundamental technique for various endoscopic surgical procedures, including full-thickness resection of the digestive tract and tunneling techniques. The invention of the IT knife by Japanese scholars in 1994 marked the beginning of the ESD era for endoscopic technology. ESD was introduced into clinical practice in China in 2006. After 20 years of development and promotion, ESD and related technologies have become standard surgical procedures for early-stage digestive tract tumors and have become routine procedures in county and city-level hospitals in China, showing broad clinical application prospects. The location of the lesion during ESD surgery has a significant impact on the procedure. When the lesion is high up, the separated mucosal tissue naturally detaches from the muscularis propria due to gravity, thus exposing a clear surgical field and facilitating the dissection of the submucosal tissue. This not only shortens the operation time but also reduces the incidence of complications such as bleeding and perforation. However, when the lesion is low up, the separated mucosal tissue lies prostrate within the muscularis propria, making it difficult to expose the submucosal layer. This results in a poor surgical field, prolonging the operation time and significantly increasing the incidence of complications.

[0003] Therefore, a mucosa and muscularis propria separation support device with a stretchable function is now provided, which is essential for reliably separating the mucosa and muscularis propria. Summary of the Invention

[0004] The purpose of this invention is to provide a mucosa and muscularis propria separation support device with a stretchable function to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A mucosa and muscularis propria separation support device with a stretchable function includes an operating component and a support component. The support component includes a head sheath, a head block, and support columns. The head block is slidably connected to the inner wall of the head sheath. Two symmetrical ball bearings are embedded and fixed in the inner wall of the head block. The two support columns are connected by springs and are used to support the mucosa and muscularis propria. One of the support columns has a groove corresponding to the ball bearing and engages with the ball bearing. The operating component is used to operate the support component to support the mucosa and muscularis propria.

[0006] Based on the above technical solutions, the present invention also provides the following optional technical solutions: In one alternative: the ball bearing is made of titanium.

[0007] In one alternative: both of the support columns have protrusions fixedly connected to their sidewalls.

[0008] In one alternative embodiment: the operating assembly includes an operating lever, a slide cylinder, and pull rings. The operating lever is slidably connected to the slide cylinder. Two pull rings are fixedly connected to the periphery of the slide cylinder. The operating lever has a sliding hole. A sliding plate is fixedly connected to the slide cylinder. The sliding plate is slidably connected to the inner wall of the sliding hole. An inner core is fixedly connected to the side wall of the sliding plate. The inner core passes through the operating lever. An outer sheath is fixedly connected between the operating lever and the head sheath. The inner core extends through the outer sheath into the head sheath and is fixedly connected to the head block.

[0009] In one alternative: a limiting block is fixedly connected to the side wall of the head block, a limiting groove is formed in the inner wall of the head sheath, and the limiting block is slidably connected to the inner wall of the limiting groove.

[0010] In one alternative: a pull plate is fixedly connected to the side wall of the pull ring.

[0011] In one alternative: the operating lever is fixedly connected to a force-applying ring.

[0012] In one alternative: a silicone ring is provided inside the pull ring.

[0013] In one alternative: the support column is provided with a chamfer.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention allows access to the surgical field through the endoscopic operating channel, enabling convenient and flexible release of support components between the incised mucosal layer and the muscularis propria. This stabilizes and continuously maintains the separation of the mucosal layer and the muscularis propria, providing the surgeon with a clear surgical field during the operation, improving surgical efficiency, and reducing surgical complications.

[0015] This invention can flexibly adjust the support amplitude according to the actual distance between the mucosal layer and the muscularis propria, adapting to surgical scenarios with different lesion sizes and tissue thicknesses, thus improving the applicability of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the operating component structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of the operating component of the present invention.

[0019] Figure 4 This is a schematic diagram of the working state of the support component of the present invention.

[0020] Figure 5 This is a schematic diagram of the internal structure of the support component of the present invention.

[0021] Figure reference numerals: 1. Operating component, 2. Support component, 3. Operating lever, 4. Force ring, 5. Slide cylinder, 6. Pull ring, 7. Silicone ring, 8. Slide hole, 9. Inner core, 10. Pull plate, 11. Outer sheath, 12. Slide plate, 13. Head sheath, 14. Head block, 15. Limiting block, 16. Ball bearing, 17. Support column, 18. Protrusion, 19. Spring, 20. Limiting groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] In one embodiment, such as Figures 1-5 As shown, a mucosa and muscularis propria separation support device with a stretchable function includes an operating component 1 and a support component 2. The support component 2 includes a head sheath 13, a head block 14, and support columns 17. The head block 14 is slidably connected to the inner wall of the head sheath 13. Two symmetrical ball bearings 16 are embedded and fixed in the inner wall of the head block 14. The two support columns 17 are connected by springs 19 and are used to support the mucosa and muscularis propria. One of the support columns 17 has a groove corresponding to the ball bearing 16 and engages with the ball bearing 16. The operating component 1 is used to operate the support component 2 to support the mucosa and muscularis propria.

[0024] The operator holds the operating rod 3 of the operating component 1 and places the force ring 4 against the appropriate position of the fingers to ensure a stable grip. The support component 2 is slowly inserted into the digestive tract through the operating channel of the endoscope until the support component 2 reaches the lesion area. At this time, the support column 17 is in a contracted state inside the head sheath 13 to avoid damage to the digestive tract mucosa during the insertion process.

[0025] When both support columns 17 are fully exposed outside the head sheath 13, the doctor controls one end of the support column 17 to press against the mucosal serosal surface, while adjusting the endoscope lens to continue moving the support column 17 forward. Since one end is already pressed against the mucosal serosal surface, the support column 17 rotates around the ball bearing 16, and the other end of the support column 17 presses against the muscularis propria mucosal surface. When adjusted to the operator's ideal position, the doctor pulls back the slide cylinder 5, and the slide cylinder 5 drives the sliding hole 8 to move backward. Since the support column 17 has rotated at this time and is stuck between the mucosal serosal surface and the muscularis propria mucosal surface, it cannot return to the head sheath 13. When the doctor pulls the sliding hole 8, the groove of the support column 17 disengages from the ball bearing 16, and finally the support column 17 disengages from the head block 14, supporting the mucosal serosal surface and the muscularis propria mucosal surface.

[0026] In one embodiment, the ball bearing 16 is made of titanium. Titanium has high deformation capacity.

[0027] In one embodiment, both support columns 17 are fixedly connected to the sidewalls with protrusions 18. The protrusions 18 are used to anchor the mucosal serous surface and the muscularis propria, preventing them from slipping. In one embodiment, the operating component 1 includes an operating lever 3, a slide cylinder 5, and pull rings 6. The operating lever 3 is slidably connected to the slide cylinder 5. Two pull rings 6 are fixedly connected to the periphery of the slide cylinder 5. The operating lever 3 has a sliding hole 8. The slide cylinder 5 is fixedly connected to a sliding plate 12. The sliding plate 12 is slidably connected to the inner wall of the sliding hole 8. An inner core 9 is fixedly connected to the side wall of the sliding plate 12. The inner core 9 passes through the operating lever 3. An outer sheath 11 is fixedly connected between the operating lever 3 and the head sheath 13. The inner core 9 extends through the outer sheath 11 into the head sheath 13 and is fixedly connected to the head block 14.

[0028] The doctor holds the operating component 1, inserts two fingers into the pull ring 6, and pushes the slide cylinder 5 forward. The slide cylinder 5 drives the inner core 9 to move forward along the inside of the outer sheath tube 11. The inner core 9 drives the head block 14 to move forward inside the head sheath tube 13 until the two support columns 17 are completely exposed outside the head sheath tube 13. The doctor pulls the slide tube 5 back with his finger, and the slide tube 5 drives the slide hole 8 to move backward. Since the support column 17 has already rotated and is stuck between the serosa of the mucosa layer and the mucosa of the muscularis propria layer, it cannot return to the head sheath 13.

[0029] In one embodiment, a limiting block 15 is fixedly connected to the side wall of the head block 14, and a limiting groove 20 is formed in the inner wall of the head sheath 13. The limiting block 15 is slidably connected to the inner wall of the limiting groove 20. This limits the range of motion of the head block 14.

[0030] In one embodiment, a pull plate 10 is fixedly connected to the side wall of the pull ring 6.

[0031] It makes it easier for doctors to apply pressure with their fingers.

[0032] In one embodiment, the operating lever 3 is fixedly connected to a force-applying ring 4.

[0033] In one embodiment, a silicone ring 7 is provided inside the pull ring 6. This makes it more comfortable for doctors to operate with their fingers.

[0034] In one embodiment, the support column 17 is provided with a chamfer.

[0035] The above embodiments disclose a mucosa and muscularis propria separation support device with a stretchable function, the specific working principle and process of which are as follows: The operator holds the operating rod 3 of the operating component 1 and places the force ring 4 against the appropriate position of the fingers to ensure a stable grip. The support component 2 is slowly inserted into the digestive tract through the operating channel of the endoscope until the support component 2 reaches the lesion area. At this time, the support column 17 is in a contracted state inside the head sheath 13 to avoid damage to the digestive tract mucosa during the insertion process.

[0036] A support component 2 is inserted between the incised mucosa and muscularis propria. The doctor holds the operating component 1, inserts two fingers into the pull ring 6, and pushes the slide cylinder 5 forward. The slide cylinder 5 moves the inner core 9 forward along the inside of the outer sheath 11. The inner core 9 moves the head block 14 forward within the head sheath 13 until the two support columns 17 are completely exposed outside the head sheath 13. At this point, the doctor controls one end of the support column 17 to press against the serosal surface of the mucosa, while simultaneously adjusting the endoscope lens to continue moving the support column 17 forward. Since one end is already pressed against the serosal surface of the mucosa, The support column 17 rotates around the ball 16, and the other end of the support column 17 abuts against the mucosal surface of the muscularis propria. When adjusted to the operator's ideal position, the doctor pulls back the slide cylinder 5 with his finger. The slide cylinder 5 drives the slide hole 8 to move backward. Since the support column 17 has already rotated and is stuck between the serosa of the mucosa and the mucosal surface of the muscularis propria, it cannot return to the head sheath 13. When the doctor pulls the slide hole 8, the groove of the support column 17 disengages from the ball 16. Finally, the support column 17 disengages from the head block 14 and supports the serosa of the mucosa and the mucosal surface of the muscularis propria. The bump 18 is used to anchor the mucosal layer, serosal surface, and muscularis propria to prevent slippage. A hollow flexible tube can be fitted over the spring 19. The combination of the spring 19 and the hollow flexible tube allows the support column 17 to support the mucosa and muscle layer at different distances, thus improving the applicability of the device.

[0037] This device can access the surgical field through the operating channel of the endoscope, and conveniently and flexibly releases the support component between the incised mucosa and muscularis propria to stably and continuously maintain the separation of the mucosa and muscularis propria, providing the surgeon with a clear surgical field during the operation, improving surgical efficiency and reducing surgical complications.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A mucosa and muscularis propria separation support device with a stretchable function, characterized in that, The device includes an operating component (1) and a support component (2). The support component (2) includes a head sheath (13), a head block (14), and a support column (17). The head block (14) is slidably connected to the inner wall of the head sheath (13). Two symmetrical ball bearings (16) are embedded and fixed in the inner wall of the head block (14). The two support columns (17) are connected by a spring (19) and are used to support the mucosa and the muscularis propria. One of the support columns (17) has a groove corresponding to the ball bearing (16) and engages with the ball bearing (16). The operating component (1) is used to operate the support component (2) to support the mucosa and the muscularis propria.

2. The mucosa and muscularis propria separation support device with stretchable function according to claim 1, characterized in that, The ball (16) is made of titanium.

3. The mucosa and muscularis propria separation support device with a stretchable function according to claim 1, characterized in that, Both of the support columns (17) have protrusions (18) fixedly connected to their side walls.

4. The mucosa and muscularis propria separation support device with a stretchable function according to claim 1, characterized in that, The operating component (1) includes an operating rod (3), a slide cylinder (5), and pull rings (6). The operating rod (3) is slidably connected to the slide cylinder (5). Two pull rings (6) are fixedly connected to the periphery of the slide cylinder (5). The operating rod (3) has a sliding hole (8). The slide cylinder (5) is fixedly connected to a sliding plate (12). The sliding plate (12) is slidably connected to the inner wall of the sliding hole (8). An inner core (9) is fixedly connected to the side wall of the sliding plate (12). The inner core (9) passes through the operating rod (3). An outer sheath (11) is fixedly connected between the operating rod (3) and the head sheath (13). The inner core (9) passes through the outer sheath (11) and extends into the head sheath (13) and is fixedly connected to the head block (14).

5. The mucosa and muscularis propria separation support device with a stretchable function according to claim 4, characterized in that, The head block (14) is fixedly connected to the side wall of the limiting block (15), and the inner wall of the head sheath (13) is provided with a limiting groove (20). The limiting block (15) is slidably connected to the inner wall of the limiting groove (20).

6. The mucosa and muscularis propria separation support device with a stretchable function according to claim 4, characterized in that, A pull plate (10) is fixedly connected to the side wall of the pull ring (6).

7. A mucosa and muscularis propria separation support device with a stretchable function according to claim 4, characterized in that, The operating lever (3) is fixedly connected to a force-applying ring (4).

8. A mucosa and muscularis propria separation support device with a stretchable function according to claim 4, characterized in that, A silicone ring (7) is provided inside the pull ring (6).

9. A mucosa and muscularis propria separation support device with a stretchable function according to claim 1, characterized in that, The support column (17) is provided with a chamfer.

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