Transrectal vesicorectal fistula repair device

Abstract

The utility model relates to a kind of transrectal bladder rectum fistula repair devices, including repair pipe body and expansion pipe, the repair pipe body includes insertion end pipe column, butt joint ring and expansion sleeve, the insertion end pipe column and butt joint ring between being provided with the expansion sleeve with elasticity, expansion pipe is installed in the expansion sleeve, the expansion pipe includes expansion conical structure, threaded butt joint pipe and dial ring, the threaded butt joint pipe one end is installed with the expansion conical structure inserted into expansion sleeve interior, the threaded butt joint pipe other end is provided with the dial ring that protrudes outward, the threaded butt joint pipe and the inner ring of butt joint ring are connected by thread, the expansion conical structure is left small right big conical structure.The utility model has the characteristics of convenient adjustment anus received expansion degree, avoid anal sphincter injury, convenient external knot, ensure wound tight suture, convenient expansion operation visual field, convenient medical staff operation etc.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a device for repairing transrectal vesicorectal fistula. Background Technology

[0002] Vesicorectal fistula is a common urethral injury disease in urology. Its causes are mostly related to rectal injury after surgery, postoperative complications, and radiotherapy after surgery for malignant tumors. The existing surgical method is to use two medical assistants to open the patient's anus with two retractors to expose the injured area. The doctor then cuts and sutures the affected area by visual inspection. The above treatment method has certain disadvantages. First, the tension is difficult to control, which can damage the anal sphincter. Second, the pre-existing dilation may cause anal laxity, which may lead to loosening during suturing. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a transrectal vesicorectal fistula repair device, which has the characteristics of conveniently adjusting the dilation force on the anus, avoiding damage to the anal sphincter, facilitating external knotting, ensuring tight suturing of the wound, facilitating the expansion of the surgical field during surgery, and facilitating operation by medical staff.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to provide a transrectal vesicorectal fistula repair device, including a repair tube body and an expansion tube. The repair tube body includes an insertion end tube column, a docking ring, and an expansion sleeve. An elastic expansion sleeve is provided between the insertion end tube column and the docking ring. An expansion tube is installed inside the expansion sleeve. The expansion tube includes an expansion conical structure, a threaded connecting tube, and a turning ring. An expansion conical structure inserted into the expansion sleeve is installed on one end of the threaded connecting tube. An outwardly protruding turning ring is provided on the other end of the threaded connecting tube. The inner rings of the threaded connecting tube and the docking ring are connected by threads. The expansion conical structure is a cone structure with a smaller left side and a larger right side.

[0005] This technical solution utilizes an insertion end tube to facilitate the introduction of the device into the patient's anus. An elastic expansion sleeve allows the expansion tube to deform under pressure during insertion. The expansion tube facilitates the expansion of the expansion sleeve, enabling it to compress the anus, opening and closing it to prevent air leakage. Moving the expansion tube towards the patient increases the surgical field of view, greatly facilitating the surgeon's operation. Threaded connecting tubes and coupling rings allow the expansion tube to slowly approach the surgical site, preventing sphincter injury from excessively rapid expansion.

[0006] As a supplement to this technical solution, when the wire end is pushed in, a wire end pushing device is inserted into the docking ring. The insertion end of the wire end pushing device is provided with a conical head, and the end of the conical head is provided with a needle channel that passes through the wire end pushing device.

[0007] In this technical solution, the internal space of the large-diameter end of the expansion tube can be used as a space for the doctor to tie a knot. After the doctor ties the knot, it becomes a slip knot. Then, the suture needle is inserted into the conical head and enters the needle guide channel. The doctor then inserts forceps into the needle guide channel and fixes the suture needle with the forceps. Finally, the suture end pushing device is pushed. The suture end pushing device will push the slip knot. The slip knot is pushed towards the suture position and gradually shrinks until the slip knot becomes a dead knot. When the suture end pushing device encounters resistance, it means that the knot is completely tied, thus sealing the suture wound.

[0008] As a supplement to this technical solution, the end of the conical head adopts a spherical structure, which is used to prevent the conical head from piercing the patient's position.

[0009] As a supplement to this technical solution, the other end of the wire end pushing device is provided with a limiting end with a diameter larger than that of the docking ring. The limiting end is provided to prevent the wire end pushing device from pushing in too much, which would cause secondary damage.

[0010] As a supplement to this technical solution, a layer of hydrocolloid dressing is provided on the outer surface of the insertion end tube and the dilation sleeve. The hydrocolloid dressing is used to reduce discomfort during the dilation process and also to avoid abrasion of the skin at the anus.

[0011] As a supplement to this technical solution, a guide tube is provided on the small-diameter end of the tapered structure for expansion. The guide tube and the inner ring of the insertion end column are matched. The guide tube is used to ensure the stable movement of the expansion tube pair.

[0012] As a supplement to this technical solution, a plurality of elastic skeletons are evenly arranged on the inner ring of the expansion sleeve. The elastic skeletons are arc-shaped sheet structures and are arranged around the center line of the expansion sleeve. One end of the elastic skeleton is connected to the insertion end column, and the other end is inclined outward and connected to the docking ring.

[0013] In this technical solution, an elastic skeleton is set to improve the elasticity of the expansion sleeve itself, so as to facilitate the restoration of the expansion sleeve.

[0014] Beneficial Effects: This utility model relates to a transrectal vesicorectal fistula repair device. It features an insertion end tube for easy introduction into the patient's anus, facilitating insertion. An elastic expansion sleeve allows the expansion tube to deform under pressure during insertion. The expansion tube facilitates expansion of the expansion sleeve, allowing it to compress the anus, opening and closing it to prevent air leakage. Moving the expansion tube towards the patient increases the surgical field of view, greatly simplifying the surgeon's operation. The threaded connecting tube and connecting ring allow for slow approach of the expansion tube to the surgical site, preventing sphincter injury from excessive expansion. The device offers advantages such as easy adjustment of the expansion force on the anus, prevention of anal sphincter injury, convenient external knotting, ensuring tight wound closure, expanded surgical field of view, and ease of operation for medical staff. Attached Figure Description

[0015] Figure 1 This is the front view of this utility model;

[0016] Figure 2 This is a utility model Figure 1 Sectional view along the AA direction;

[0017] Figure 3 This is a front view of the wire end pushing device described in this utility model;

[0018] Figure 4 This is a full sectional view of the thread push-in device described in this utility model;

[0019] Figure 5 This is a structural view of the elastic skeleton described in this utility model;

[0020] Figure 6 This is a schematic diagram illustrating the operation after the knot is tied according to this utility model;

[0021] Figure 7 This is a schematic diagram of the insertion of the wire end pushing device of this utility model;

[0022] Figure 8 This is a schematic diagram of the thread-end pushing device of this utility model pushing the slipknot and the slipknot gradually shrinking;

[0023] Figure 9 This is a structural view of the present invention after adopting a conical concave shape;

[0024] Figure 10 This is a full sectional view of the present invention after selecting the fastening piece;

[0025] Figure 11 This is a utility model Figure 10 Enlarged view of a portion of point A in the middle;

[0026] Figure 12 This is a left view of the selected snap-fit ​​step in this utility model;

[0027] Figure 13 This is a utility model Figure 12 Enlarged view of section B in the middle.

[0028] Illustrations: 1. Repair tube body, 2. Expansion tube, 3. Thread pusher, 4. Insertion end tube column, 5. Expansion sleeve, 6. Butt ring, 7. Guide tube, 8. Conical structure for expansion, 9. Threaded butt tube, 10. Actuating ring, 11. Conical head, 12. Needle channel, 13. Limiting end, 14. Suture position, 15. Slip knot, 16. Suture needle, 17. Hydrocolloid dressing, 18. Elastic skeleton, 19. Conical concave shape, 20. Surgical channel, 21. Removable sheet body, 22. Fastening structure, 23. Fastening rod, 24. Fastening piece, 25. Fastening protrusion, 26. Fastening step, 27. Fastening protrusion, 28. Fastening ear. Detailed Implementation

[0029] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0030] The present invention relates to a device for repairing a transrectal vesicorectal fistula, such as... Figure 1 As shown in Figure 4, the device includes a repair tube body 1 and an expansion tube 2. The repair tube body 1 includes an insertion end tube 4, a docking ring 6, and an expansion sleeve 5. An elastic expansion sleeve 5 is provided between the insertion end tube 4 and the docking ring 6. The expansion tube 2 is installed inside the expansion sleeve 5. The expansion tube 2 includes an expansion conical structure 8, a threaded connecting tube 9, and a turning ring 10. The expansion conical structure 8, which is inserted into the expansion sleeve 5, is installed on one end of the threaded connecting tube 9. The other end of the threaded connecting tube 9 is provided with an outwardly protruding turning ring 10. The inner rings of the threaded connecting tube 9 and the docking ring 6 are connected by threads. The expansion conical structure 8 is a cone structure that is smaller on the left and larger on the right.

[0031] In this technical solution, the insertion end column 4 is provided to facilitate the introduction of the device into the patient's anus. The elastic expansion sleeve 5 allows the expansion tube 2 to deform under the thrust of insertion. The expansion tube 2 facilitates the expansion of the expansion sleeve 5, enabling it to compress the anus, opening and closing it to prevent air leakage. Simultaneously, the expansion tube 2 moves towards the patient, increasing the surgical field of view and greatly facilitating the surgeon's operation. The threaded connecting tube 9 and the docking ring 6 allow the expansion tube 2 to slowly approach the surgical site, preventing sphincter injury caused by excessively rapid expansion.

[0032] As a supplement to this technical solution, when the wire end is pushed in, a wire end pushing device 3 is inserted into the docking ring 6. A tapered head 11 is provided on the insertion end of the wire end pushing device 3, and a needle channel 12 that passes through the wire end pushing device 3 is provided on the end of the tapered head 11.

[0033] In this technical solution, the internal space of the large-diameter end of the expansion tube 2 can be used as a space for the doctor to tie a knot. After the doctor ties the knot, this is a slip knot 15. Then, the suture needle 16 is inserted into the conical head 11 and enters the needle guide channel 12. The doctor then inserts tweezers into the needle guide channel 12 and fixes the suture needle 16 with the tweezers. Finally, the suture end pushing device 3 is pushed. The suture end pushing device 3 will push the slip knot 15. The slip knot 15 is pushed towards the suture position and gradually shrinks until the slip knot 15 becomes a dead knot. When the suture end pushing device 3 encounters resistance, it means that the knot is completely tied, thus achieving the sealing of the suture wound.

[0034] As a supplement to this technical solution, the end of the conical head 11 adopts a spherical structure. The spherical structure is used to avoid the conical head 11 piercing the patient's position.

[0035] As a supplement to this technical solution, the other end of the wire end pushing device 3 is provided with a limiting end 13 with a diameter larger than that of the docking ring 6. The limiting end 13 is provided to prevent the wire end pushing device 3 from pushing in too much, which would cause secondary damage.

[0036] As a supplement to this technical solution, a layer of hydrocolloid dressing 17 is provided on the outer surface of the insertion end column 4 and the dilation sleeve 5. The hydrocolloid dressing 17 is provided to reduce discomfort during the dilation process and also to avoid abrasion of the skin at the anus.

[0037] As a supplement to this technical solution, a guide tube 7 is provided on the small-diameter end of the expansion conical structure 8. The guide tube 7 and the inner ring of the insertion end column 4 are matched. The guide tube 7 is provided to ensure the stable movement of the expansion tubes 2.

[0038] like Figure 5 As shown, as a supplement to this technical solution, a plurality of elastic skeletons 18 are evenly arranged on the inner ring of the expansion sleeve 5. The elastic skeletons 18 have an arc-shaped sheet structure and are arranged around the center line of the expansion sleeve 5. One end of the elastic skeleton 18 is connected to the insertion end column 4, and the other end is inclined outward and connected to the docking ring 6.

[0039] In this technical solution, an elastic skeleton 18 is set to improve the elasticity of the expansion sleeve 5 itself, so as to facilitate the restoration of the expansion sleeve 5.

[0040] Example

[0041] In this technical solution, the overall length of the repair tube body 1 is 10 cm. The reason why the surgical field of view is affected as mentioned in the text is that the surgical position is located inside the human body. When the anus is not under external force, it will block the surgical position. In order to avoid the anus blocking the surgical position, a tube can be selected to ensure that the surgical position is exposed. However, ordinary tubes are long, and after being inserted, the surgical position is far from the surgical opening, which will affect the doctor's surgical field of view. Therefore, an expansion sleeve 5 and an expansion tube 2 for opening the expansion sleeve 5 are set on the repair tube body 1. The inner circle of the expansion tube 2 is a conical surface structure with a smaller left end and a larger right end. When the left end of the expansion tube 2 is gradually inserted closer to the surgical position, the conical surface structure can provide a very clear surgical environment.

[0042] like Figure 1 — Figure 4 As shown, during the operation, the doctor first inserts the insertion end column 4 of the repair tube body 1 into the patient's anus, and the insertion end column 4 needs to be inserted close to the surgical position. After that, the doctor holds the exposed part of the repair tube body 1 with one hand and rotates the actuating ring 10 with the other hand. The rotation of the actuating ring 10 drives the dilation tube 2 to rotate. The dilation tube 2 is pushed by the thread, so that the dilation tube 2 slowly approaches the surgical position. At the same time, the dilation tube 2 uses the conical structure 8 to push the dilation sleeve 5, and the dilation sleeve 5 pushes the patient's anus, thereby opening the anus and sealing the anal edge to prevent air leakage.

[0043] like Figure 6 — Figure 8As shown, after adjustment, the surgery is performed. First, the doctor inserts the electrocautery needle through the inner ring of the expansion tube 2 to the surgical site to make a cut. After the cut is completed, the excised area is removed. Then, the suture needle 16 is inserted from the expansion tube 2. After the suture needle 16 completes the suturing, a suture position 14 is formed at the surgical site. Then, the suture needle 16 is introduced into the conical inner cavity of the expansion tube 2 to tie a knot. After completing the slip knot 15, the suture needle 16 is inserted into the conical head 11 and enters the needle guide channel 12. Then, the doctor inserts forceps into the needle guide channel 12 and fixes the suture needle 16 with forceps. Finally, the suture end pusher 3 is pushed. The suture end pusher 3 will push the slip knot 15. The slip knot 15 is pushed towards the suture position and gradually shrinks until the slip knot 15 becomes a dead knot. When the suture end pusher 3 encounters resistance, it means that the knot is completely tied, and the wound is sealed. Finally, the suture end pusher 3 is removed, and the excess surgical suture is cut off with scissors.

[0044] After completion, rotate the actuating ring 10 again to slowly withdraw the expansion tube 2 from the repair tube body 1, and finally completely remove the device.

[0045] Example 2

[0046] like Figure 9 As shown, a conical recess 19 is provided at the middle position of the insertion end of the thread pusher 3. The conical surface of the conical recess 19 can guide the slipknot 15, ensuring that the slipknot 15 is always in the conical recess 19 during the thread pusher 3 insertion process, and ensuring that the slipknot 15 enters smoothly until it is appropriate.

[0047] Example 3

[0048] To expand the observation area of ​​the surgical site, an incision can be made at the insertion end of the repair tube body 1. The incision facilitates observation by the surgeon and expands the observation port during the operation.

[0049] like Figure 10 As shown, in order to expand the surgical observation port, a detachable sheet 21 is installed on the incision of the repair tube body 1. After the insertion of the repair tube body 1 is completed, the doctor can remove the detachable sheet 21 with forceps and take it out from the surgical channel 20 of the repair tube body 1. After that, the medical staff can observe a larger surgical window, which is convenient for the medical staff to operate.

[0050] like Figure 11 and Figure 12 As shown, the front and rear ends of the detachable sheet body 21 are connected to the repair tube body 1 through the fastening structure 22. At the same time, the right end of the detachable sheet body 21 is provided with a fastening rod 23, and a fastening piece 24 is rotatably installed on the right end of the fastening rod 23. The repair tube body 1 is provided with a fastening protrusion 25 that matches and connects with the fastening piece 24 near the position of the fastening rod 23.

[0051] When the detachable sheet 21 is assembled, the detachable sheet 21 first enters the repair tube body 1 from the lower side of the cut. The two sides of the detachable sheet 21 are connected to the repair tube body 1 through the fastening structure 22. After completion, the fastening piece 24 is removed so that the fastening piece 24 and the fastening protrusion 25 are fastened together.

[0052] When the removable sheet 21 is removed, the doctor first uses forceps to lift the fastening piece 24, causing the fastening piece 24 to disengage from the fastening protrusion 25. After that, the doctor uses forceps to pull the removable sheet 21, causing the fastening structure 22 of the removable sheet 21 to disengage. After that, the removable sheet 21 is dragged into the surgical channel 20, and finally the removable sheet 21 is removed from the surgical channel 20.

[0053] like Figure 13 As shown, a snap-fit ​​step 26 is provided on the inner side of the cut of the repair tube body 1, and a snap-fit ​​protrusion 27 with a sloping lower end is provided on the snap-fit ​​step 26. A snap-fit ​​ear 28 is provided on the detachable sheet body 21. The snap-fit ​​ear 28 and the snap-fit ​​protrusion 27 form a snap-fit ​​structure.

Claims

1. A device for repairing a transrectal vesicorectal fistula, characterized in that: The device includes a repair tube body (1) and an expansion tube (2). The repair tube body (1) includes an insertion end tube column (4), a docking ring (6), and an expansion sleeve (5). An elastic expansion sleeve (5) is provided between the insertion end tube column (4) and the docking ring (6). An expansion tube (2) is installed inside the expansion sleeve (5). The expansion tube (2) includes an expansion conical structure (8), a threaded connecting tube (9), and a turning ring (10). An expansion conical structure (8) inserted into the expansion sleeve (5) is installed on one end of the threaded connecting tube (9). A turning ring (10) protruding outward is provided on the other end of the threaded connecting tube (9). The inner rings of the threaded connecting tube (9) and the docking ring (6) are connected by threads. The expansion conical structure (8) is a cone structure with a smaller left side and a larger right side.

2. The transrectal vesicorectal fistula repair device according to claim 1, characterized in that: When the thread end is pushed in, a thread end pushing device (3) is inserted into the docking ring (6). A conical head (11) is provided on the insertion end of the thread end pushing device (3), and a needle channel (12) that passes through the thread end pushing device (3) is provided on the end of the conical head (11).

3. The transrectal vesicorectal fistula repair device according to claim 2, characterized in that: The end of the conical head (11) adopts a spherical structure.

4. The transrectal vesicorectal fistula repair device according to claim 2, characterized in that: The other end of the thread push-in device (3) is provided with a limiting end (13) with a diameter larger than that of the docking ring (6).

5. The transrectal vesicorectal fistula repair device according to claim 1, characterized in that: A layer of hydrocolloid dressing (17) is provided on the outer surface of the insertion end tube (4) and the expansion sleeve (5).

6. The transrectal vesicorectal fistula repair device according to claim 1, characterized in that: The small-diameter end of the expansion tapered structure (8) is provided with a guide tube (7), and the guide tube (7) and the inner ring of the insertion end column (4) are matched.

7. The transrectal vesicorectal fistula repair device according to claim 1, characterized in that: The inner ring of the expansion sleeve (5) is uniformly provided with several elastic skeletons (18). The elastic skeletons (18) are arc-shaped sheet structures and are arranged around the center line of the expansion sleeve (5). One end of the elastic skeleton (18) is connected to the insertion end column (4), and the other end is inclined outward and connected to the docking ring (6).

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