Protective support for rectum anastomotic stoma

Abstract

According to the technical scheme, the protection support for the rectum anastomotic stoma is characterized in that the protection support comprises a supporting tube, the supporting tube is rotationally connected with a positioning tube and further connected with a moving tube in a threaded mode, and the moving tube is fixedly connected with a plurality of bending parts fixedly connected with the positioning tube. Through the arrangement of the bendable bending piece, the elastic intestinal wall can wrap the bent bending piece to enable the position of the bent bending piece to be relatively fixed, so that the position of the device is fixed when the intestinal tract is expanded and contracted, the bending of the bending piece is controlled through the movement of the moving piece, and the device is conveniently placed and removed.

Description

Technical Field

[0001] This invention relates to a protective stent, and more specifically, to a protective stent for rectal anastomosis. Background Technology

[0002] Protective stents used for rectal anastomoses are typically placed at the end of the rectum. They can open up narrowed areas of the intestine, restoring patency to the narrowed or blocked areas. They can serve as a permanent or temporary treatment for malignant obstruction caused by colorectal cancer and create conditions for elective surgery. Because the intestine undergoes periodic expansion and contraction and has folds, currently available protective stents for rectal anastomoses are difficult to fix in position during intestinal expansion and contraction, and are prone to dislodgement, requiring patients to undergo repeat surgery to insert a stent. Therefore, there is a need for a protective stent for rectal anastomoses that can fix its position during intestinal expansion and contraction.

[0003] Based on the above reasons, the problem addressed in this application is how to fix the intestinal tract's position during expansion and contraction. Summary of the Invention

[0004] To address the shortcomings of existing technologies, a protective stent for rectal anastomosis is provided, which can fix its position when the intestine expands and contracts.

[0005] To achieve the above objectives, the following technical solution is provided: a protective stent for rectal anastomosis, comprising a support tube, a positioning tube rotatably connected to the support tube, and a movable tube threadedly connected to the support tube, the movable tube being fixedly connected to a plurality of bent parts fixedly connected to the positioning tube, the end of the support tube away from the positioning tube being connected to a rotating part for abutting against the support tube and driving the support tube to rotate, the rotating part being threadedly connected to a handle sleeved on the outside of the rotating part.

[0006] In summary, the above technical solution has the following beneficial effects: the support tube and the bending component can form a protective support. The support tube can expand the intestinal wall, while the bent component will further adhere to the intestinal wall. Since the intestinal wall has a certain elasticity, the middle part of the bent component is far away from the support tube. Therefore, the central part of the bent component will be wrapped by the uneven and wrinkled intestinal wall, and will always be wrapped and fixed in position by the intestinal wall when the intestine expands and contracts, thereby fixing the position of the support tube and preventing the support tube from falling out.

[0007] The rotating part and handle are used to assist the support tube in entering the rectum, and also facilitate the rotation of the support tube from outside the rectum. Once the support tube can be fixed in the rectum, the rotating part and handle can be removed directly.

[0008] When the movable tube remains in place, multiple curved parts are in a straight state and fit against the side of the support tube in a thin and straight shape. At this time, the support tube can be directly inserted into the rectum.

[0009] When the support tube is rotated, the moving tube, which is threaded to the support tube, will move closer to the positioning tube. Since the positioning tube is fixedly connected to the bending part, the positioning tube will not rotate when the support tube is rotated. It will only reduce the relative distance with the moving tube, thereby causing the bending part to bend into an arc shape, similar to an egg beater. When the support tube needs to be removed, simply rotate the support tube in the opposite direction so that the bending part stops bending and fits against the support tube, making it easy to remove and preventing secondary damage from scratches.

[0010] This invention utilizes the folds and elasticity of the intestinal wall. By setting up a flexible bending component, the elastic intestinal wall can wrap around the bent component and fix its position. This fixes the device's position when the intestine expands and contracts. The bending of the bending component is controlled by the movement of the moving tube, which facilitates the insertion and removal of the device. Attached Figure Description

[0011] Figure 1 A three-dimensional structural diagram of a protective stent for rectal anastomosis;

[0012] Figure 2 This is a cross-sectional view of the positioning tube and its surrounding components;

[0013] Figure 3 This is a cross-sectional view of the handle and its surrounding components;

[0014] Figure 4 This is a cross-sectional view of the handle and its surrounding components.

[0015] Reference numerals: 1. Support tube; 2. Positioning tube; 3. Moving tube; 4. Bending component; 5. Rotating component; 6. Handle;

[0016] 11. The first object of contact;

[0017] 31. Square stapler; 32. Second abutment;

[0018] 41. Support component; 42. First elastic component; 43. Second elastic component; 44. Buffer sleeve;

[0019] 51. First receiving groove; 52. Second receiving groove; 53. Handle;

[0020] 61. Square receiving groove; 62. Soft rubber sleeve. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] Reference Figure 1-4 As shown, a protective stent for rectal anastomosis includes a support tube 1, a positioning tube 2 rotatably connected to the support tube 1, and a moving tube 3 threadedly connected to the support tube 1. The moving tube 3 is fixedly connected to a plurality of bent parts 4 fixedly connected to the positioning tube 2. A rotating part 5 is connected to the end of the support tube 1 away from the positioning tube 2 for abutting against the support tube 1 and driving the support tube 1 to rotate. A handle 6 is threadedly connected to the rotating part 5 and sleeved on the outside of the rotating part 5.

[0023] The support tube 1 and the curved part 4 can form a protective support. The support tube 1 can open up the intestinal wall, while the curved part 4 will further adhere to the intestinal wall. Since the intestinal wall has a certain elasticity, the middle part of the curved part 4 is far away from the support tube 1. Therefore, the central part of the curved part 4 will be wrapped by the uneven and wrinkled intestinal wall, and will always be wrapped and fixed in position by the intestinal wall when the intestine expands and contracts, thereby fixing the position of the support tube 1 and preventing the support tube 1 from falling out.

[0024] The rotating part 5 and the handle 6 are used to assist the support tube 1 in entering the rectum. They can also be easily operated from outside the rectum to rotate the support tube 1. When the support tube 1 can be fixed in the rectum, the rotating part 5 and the handle 6 can be removed directly.

[0025] When the moving tube 3 remains in place, the multiple curved parts 4 are in a straight state and fit against the side of the support tube 1 in a thin and straight shape. At this time, the support tube 1 can be directly inserted into the rectum.

[0026] When the support tube 1 is rotated, the movable tube 3, which is threadedly connected to the support tube 1, will move closer to the positioning tube 2. Since the positioning tube 2 is fixedly connected to the bending part 4, the positioning tube 2 will not rotate when the support tube 1 is rotated. It will only reduce the relative distance with the movable tube 3, thereby bending the bending part 4 into an arc shape, similar to an egg beater. When the support tube 1 needs to be removed, simply rotate the support tube 1 in the opposite direction so that the bending part 4 no longer bends and fits against the support tube 1, which can be easily removed and prevents secondary damage caused by scratches.

[0027] This invention utilizes the folds and elasticity of the intestinal wall. By setting a flexible bending member 4, the elastic intestinal wall can wrap around the bent bending member 4 and fix its position. This fixes the position of the device when the intestine expands and contracts. The bending of the bending member 4 is controlled by the movement of the moving tube 3, which facilitates the insertion and removal of the device.

[0028] Furthermore, a square stapler 31 is fixedly connected to the end of the moving tube 3 away from the positioning tube 2, and a square receiving groove 61 for accommodating the square stapler 31 is provided at the end of the handle 6 near the moving tube 3.

[0029] When the square stapler 31 is accommodated in the square receiving groove 61 and the rotating component 5 is rotated, the moving tube 3 does not rotate with the supporting tube 1.

[0030] The side length of the square receiving groove 61 is longer than the side length of the square stapler 31. After the square stapler 31 moves toward the square receiving groove 61, it is received in the square receiving groove 61. The side length of the square receiving groove 61 is shorter than the length of the diagonal of the square stapler 31.

[0031] When the moving tube 3 rotates, the side of the square stapler 31 abuts against the inner wall of the square receiving groove 61, thereby preventing the square stapler 31 from rotating.

[0032] Before using the device, the support tube 1 needs to be placed above the rotating part 5 so that the rotating part 5 can drive the support tube 1 to rotate. At the same time, the square stapler 31 is accommodated in the square receiving groove 61, so that the moving tube 3 is prevented from rotating when the support tube 1 is rotated, so that the moving tube 3 forms a structure similar to a screw and slider, which can move vertically.

[0033] In addition, the side length of the square receiving groove 61 is longer than the side length of the square stapler 31, so that precise positioning is not required when removing the support tube 1, which is convenient to use. The side length of the square receiving groove 61 is shorter than the length of the diagonal of the square stapler 31, which can prevent the inner wall of the square receiving groove 61 from not being able to contact the outer wall of the square stapler 31, so that the moving tube 3 is driven to rotate by the support tube 1.

[0034] When using the device, one hand needs to hold the handle 6 and the other hand needs to rotate the rotating part 5.

[0035] Furthermore, the bottom of the support tube 1 is provided with a plurality of first abutting members 11, and the rotating member 5 is provided with a plurality of first receiving grooves 51 for accommodating the first abutting members 11 near one end of the support tube 1;

[0036] When the first contact member 11 is accommodated in the first receiving groove 51 and the rotating member 5 rotates, the inner wall of the first receiving groove 51 abuts against the first contact member 11, and the support tube 1 can be driven to rotate.

[0037] When the support tube 1 is connected to the rotating member 5, the first abutting member 11 is accommodated in the first receiving groove 51. At this time, when the rotating member 5 is rotated, the inner wall of the first receiving groove 51 will abut against the first abutting member 11, thereby driving the support tube 1 to rotate.

[0038] When it is necessary to separate the support tube 1 from the rotating part 5, simply move the handle 6 vertically out.

[0039] Furthermore, the moving tube 3 is fixedly connected to a plurality of second abutting members 32 for abutting the support tube 1 at the end away from the positioning tube 2, and the rotating member 5 is also provided with a plurality of second receiving grooves 52 for accommodating the second abutting members 32 at the end near the support tube 1.

[0040] When the support tube 1 comes into contact with the second contacting member 32, the support tube 1 cannot move away from the moving tube 3;

[0041] The second receiving groove 52 is arranged in a ring shape. When the second contact member 32 is received in the second receiving groove 52, the second contact member 32 does not contact the rotating member 5 to drive the support tube 1 to rotate.

[0042] The second abutment 32 can prevent the support tube 1 from moving excessively and separating from the moving tube 3 by abutting. At the same time, since the moving tube 3 only moves in the vertical direction, the second receiving groove 52 is arranged in a ring. When the support tube 1 is connected to the rotating member 5, the second abutment 32 is accommodated in the second receiving groove 52. The rotating member 5 rotates relative to the second abutment 32 and will not be abutted by the second abutment 32, thus avoiding affecting the rotating member 5 from driving the support tube 1 to rotate.

[0043] Furthermore, the bending member 4 includes a support member 41, and the two ends of the support member 41 are respectively fixedly connected to a first elastic member 42 fixedly connected to the positioning tube 2 and a second elastic member 43 fixedly connected to the moving tube 3;

[0044] After the ends of the first elastic member 42 and the second elastic member 43 are compressed, they both form arcs with the center of the arc close to the support tube 1, and move the support member 41 away from the support tube 1.

[0045] The curved component 4 is fitted with a buffer sleeve 44 at both ends, which are respectively fixedly connected to the first elastic component 42 and the second elastic component 43.

[0046] When the moving tube 3 approaches the positioning tube 2, both the first elastic element 42 and the second elastic element 43 will bend, while the support element 41 will not bend. This maximizes the volume of the intestinal wall covering, making it less likely for the bent element 4 to detach from the intestinal wall when the position is fixed. At the same time, to prevent the thinner bent element 4 from cutting the intestinal wall, a buffer sleeve 44 is provided to protect the intestinal wall. The two ends of the buffer sleeve 44 are fixedly connected to the first elastic element 42 and the second elastic element 43, respectively, while the support element 41 can move inside the buffer sleeve 44. If the buffer sleeve 44 is fixedly connected to the support element 41, the buffer sleeve 44 may cause the support element 41 to bend when the first elastic element 42 and the second elastic element 43 deform. Therefore, only the first elastic element 42 and the second elastic element 43 are fixedly connected to the two ends of the buffer sleeve 44.

[0047] Furthermore, the handle 6 is fitted with a soft rubber sleeve 62 to prevent corrosion from bodily fluids. The part of the soft rubber sleeve 62 near the support tube 1 is a smooth surface, and the part of the soft rubber sleeve 62 away from the support tube 1 is a rough surface.

[0048] The rotating part 5 is fixedly connected to a handle 53 at the end away from the support tube 1. The handle 53 and the surface of the rotating part 5 are provided with a gap for accommodating fingers.

[0049] Since the handle 6 needs to be inserted into the rectum to control the bending of the bending component 4, a soft rubber sleeve 62 is required to prevent bodily fluids from corroding the handle 6. The part of the soft rubber sleeve 62 near the support tube 1 is smooth to ensure smooth entry into the rectum. At the same time, in order to facilitate the control of the rotating component 5, an easy-to-grip handle 53 is provided. The part of the soft rubber sleeve 62 away from the support tube 1 is rough to increase the friction when gripping, making the device more stable during use and reducing patient discomfort. When using the device, one hand can hold the handle 6 and the other hand can grasp the handle 53 and rotate it.

[0050] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A protective stent for rectal anastomosis, characterized in that, It includes a support tube (1), which is rotatably connected to a positioning tube (2) and also threadedly connected to a moving tube (3). The moving tube (3) is fixedly connected to a plurality of bent parts (4) that are fixedly connected to the positioning tube (2). The end of the support tube (1) away from the positioning tube (2) is connected to a rotating part (5) for abutting against the support tube (1) and driving the support tube (1) to rotate. The rotating part (5) is threadedly connected to a handle (6) sleeved on the outside of the rotating part (5).

2. A protective stent for rectal anastomosis according to claim 1, characterized in that, The moving tube (3) is fixedly connected to a square stapler (31) at the end away from the positioning tube (2), and the handle (6) is provided with a square receiving groove (61) for accommodating the square stapler (31) at the end near the moving tube (3). When the square stapler (31) is accommodated in the square receiving groove (61) and the rotating component (5) is rotated, the moving tube (3) does not rotate with the supporting tube (1).

3. A protective stent for rectal anastomosis according to claim 2, characterized in that, The side length of the square receiving groove (61) is longer than the side length of the square stapler (31). After the square stapler (31) moves toward the square receiving groove (61), it is received in the square receiving groove (61). The side length of the square receiving groove (61) is shorter than the length of the diagonal of the square stapler (31). When the moving tube (3) rotates, the side of the square stapler (31) abuts against the inner wall of the square receiving groove (61), thereby preventing the square stapler (31) from rotating.

4. A protective stent for rectal anastomosis according to claim 1, characterized in that, The bottom of the support tube (1) is provided with a plurality of first abutting members (11), and the rotating member (5) is provided with a plurality of first receiving grooves (51) for accommodating the first abutting members (11) at one end near the support tube (1); When the first contact member (11) is accommodated in the first receiving groove (51) and the rotating member (5) rotates, the inner wall of the first receiving groove (51) abuts against the first contact member (11), and the support tube (1) can be driven to rotate.

5. A protective stent for rectal anastomosis according to claim 1, characterized in that, The moving tube (3) is fixedly connected to a plurality of second abutting members (32) for abutting the support tube (1) at the end away from the positioning tube (2), and the rotating member (5) is also provided with a plurality of second receiving grooves (52) for accommodating the second abutting members (32) at the end near the support tube (1); When the support tube (1) comes into contact with the second contacting member (32), the support tube (1) cannot move away from the moving tube (3).

6. A protective stent for rectal anastomosis according to claim 5, characterized in that, The second receiving groove (52) is arranged in a ring shape. When the second abutting member (32) is received in the second receiving groove (52), the second abutting member (32) does not abut against the rotating member (5) to drive the support tube (1) to rotate.

7. A protective stent for rectal anastomosis according to claim 1, characterized in that, The bending member (4) includes a support member (41), and the two ends of the support member (41) are respectively fixedly connected to a first elastic member (42) fixedly connected to the positioning tube (2) and a second elastic member (43) fixedly connected to the moving tube (3); When the first elastic member (42) and the second elastic member (43) are squeezed, they both form arcs with their centers close to the support tube (1), and move the support member (41) away from the support tube (1). When the moving tube (3) approaches the positioning tube (2), the first elastic element (42) and the second elastic element (43) will both bend, while the support element (41) will not bend.

8. A protective stent for rectal anastomosis according to claim 7, characterized in that, The curved member (4) is covered with a buffer sleeve (44) whose two ends are fixedly connected to the first elastic member (42) and the second elastic member (43) respectively.

9. A protective stent for rectal anastomosis according to claim 1, characterized in that, The handle (6) is fitted with a soft rubber sleeve (62) to prevent corrosion from bodily fluids. The part of the soft rubber sleeve (62) near the support tube (1) is smooth, and the part of the soft rubber sleeve (62) away from the support tube (1) is rough.

10. A protective stent for rectal anastomosis according to claim 9, characterized in that, The rotating part (5) is fixedly connected to a handle (53) at the end away from the support tube (1), and the handle (53) and the surface of the rotating part (5) are provided with a gap for accommodating fingers.

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