Ileum bladder expansion supporting drainage device

Abstract

The invention discloses an ileum bladder expansion supporting drainage device which comprises an ileum supporting balloon, two ureter supporting balloons in one-to-one correspondence with two ureters, two ureter supports in one-to-one correspondence with the two ureters and a four-cavity catheter. According to the ileum bladder dilatation supporting drainage device, through cooperation of the four-cavity catheter, the ureter support, the ileum supporting balloon and the ureter supporting balloon, the ileum supporting balloon and the ureter supporting balloon are subjected to water filling expansion, so that the ileum supporting balloon supports the ileum, the ureter supporting balloon supports the ureter, the ureter is dilated, and the drainage effect is improved. Meanwhile, an anastomotic stoma between the ileum and the ureter is expanded, and the problem that the anastomotic stoma is narrow is solved; meanwhile, the ureter supporting balloon and the ileum supporting balloon have certain hardness after being inflated with water, the ureter supporting balloon plays a role in supporting the ureter stent after being inflated with water, and the ureter stent is prevented from moving and falling off.

Description

Technical Field

[0001] This invention belongs to the field of ileal bladder expansion technology, specifically relating to an ileal bladder expansion support and drainage device. Background Technology

[0002] For muscle-invasive bladder cancer and high-grade non-muscle-invasive bladder cancer, radical cystectomy (neobladder reconstruction) + bilateral pelvic lymph node dissection + urinary diversion remains the gold standard for surgical treatment. After radical cystectomy, urinary diversion methods are generally divided into uncontinuous and continuous methods. Uncontinuous methods require creating a stoma on the patient's skin and wearing a collection bag for life; common methods include Bricker's ileal bladder and ureterocutaneous stoma. Continuous methods do not require creating a stoma and avoid lifelong wearing of a collection bag; common methods include anal continence, percutaneous continence diversion, and orthotopic neobladder. With the development of medical technology, orthotopic neobladder reconstruction with continuous urinary diversion is trending towards replacing Bricker's ileal bladder. However, for patients with impaired urethral sphincter function or urethral stricture, orthotopic ileal bladder is not the optimal surgical method, and it does not establish an anti-reflux mechanism, which can lead to postoperative complications such as renal insufficiency and pyelonephritis due to urine reflux. Bricker ileal bladder surgery is widely used in clinical practice due to its good treatment effect and is the gold standard for diverting uncontrollable urinary flow.

[0003] After locating the ileocecal junction and distal ileum in the Bricker ileocystostomy, a free ileal loop approximately 20-35 cm long is dissected 10-15 cm from the ileocecal junction. The proximal and distal ileal ends are anastomosed end-to-end above the free ileal loop to restore the continuity of the intestinal tract. Two small round holes are cut at the mesenteric margin proximal to the free ileal loop and anastomosed to the two ureters respectively. Ureteral stents are inserted, with the outflow ends of the ureteral stents aligned with the outflow ends of the ileum. A stoma is then created on the skin surface to form a passage between the abdominal cavity and the outside. The outflow ends of the ileum, along with the outflow ends of the ureteral stents, are pulled out of the body through the skin stoma. The stoma is created using the ileum, and the intestinal tract is everted and sutured with silk sutures. The two ureteral stents are securely fixed, an abdominal drainage tube is left in place, and the abdominal incision is sutured shut. This method uses a ureteral stent for drainage of the renal pelvis, which carries the risk of stent dislodgement during use. Furthermore, it does not dilate the anastomosis between the ureter and ileum, which is prone to anastomotic stenosis as the tissue grows, requiring a second surgery in severe cases. Summary of the Invention

[0004] The purpose of this invention is to address the problems mentioned in the background art by providing an ileal bladder expansion support drainage device.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] This invention proposes an ileal bladder dilatation and support drainage device, comprising an ileal support balloon, two ureteral support balloons corresponding one-to-one with the two ureters, two ureteral stents corresponding one-to-one with the two ureters, and a four-lumen catheter, wherein:

[0007] The ileal support balloon is located in the ileum. The proximal ends of each ureteral support balloon are connected to the ileal support balloon, and the distal ends of the ureteral support balloons extend from the anastomosis between the ileum and the ureter into the ureter. A four-lumen catheter is located in the ileal support balloon, and the proximal end of the four-lumen catheter extends from inside the ileal support balloon into the ileum and then out of the body. A ureteral stent is located in the ureter, and the distal end of the ureteral stent is placed in the renal pelvis. The proximal end of the stent is inserted through the corresponding ureteral support balloon into the ileal support balloon and is connected to the four-lumen catheter. The ileal support balloon and the ureteral support balloon are inflated with water through the proximal end of the four-lumen catheter to dilate the anastomosis between the ileum and the ureter.

[0008] Preferably, the distal end of the four-lumen catheter extends from the interior of the ileum support balloon into the ileum. The four-lumen catheter has four chambers along its length, namely a balloon water inlet chamber, an ileum urine drainage chamber, and two renal pelvis urine drainage chambers. The outlet and inlet of the ileum urine drainage chamber are located at the two ends of the four-lumen catheter, respectively. The inlet of the balloon water inlet chamber and the outlet of the renal pelvis urine drainage chamber are both located at the proximal end of the four-lumen catheter.

[0009] Preferably, the four-lumen catheter has two first incisions on its sidewall, each corresponding to one of the two ureteral stents. Both first incisions are located inside the ileal support balloon and serve as the inlet for the renal pelvis urine drainage cavity. The proximal end of each ureteral stent is connected to the corresponding first incision.

[0010] Preferably, a second incision is provided on the side wall of the four-lumen catheter. The second incision is located inside the ileal support balloon and serves as the outlet of the balloon's water-filled cavity.

[0011] Preferably, the ileal bladder dilation support drainage device further includes an excretion tube, which has four chambers corresponding one-to-one with the four chambers in the four-lumen catheter, and the excretion tube has branches that communicate with the four chambers respectively. The four branches are a balloon inflation branch, an ileal urine excretion branch, and two renal pelvis urine excretion branches. The balloon inflation branch is also equipped with a one-way valve.

[0012] Preferably, the distal end of the ureteral stent is provided with multiple drainage holes.

[0013] Preferably, each ureteral support balloon is cylindrical in shape, and each ureteral support balloon is perpendicular to the ileal support balloon. Furthermore, both the ureteral support balloon and the ileal support balloon are made of non-compliant materials, which become rigid after being inflated with water to prevent the ureteral stent from falling off.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] This ileal-bladder dilatation and support drainage device works in conjunction with a four-lumen catheter, a ureteral stent, an ileal support balloon, and a ureteral support balloon. The ileal and ureteral support balloons are inflated with water, allowing the ileal balloon to support the ileum and the ureteral support balloon to support the ureter, thus dilating the ureter and preventing ureteral stenosis. It also dilates the anastomosis between the ileum and ureter, preventing anastomotic stenosis. Furthermore, the inflated ureteral and ileal support balloons possess a certain degree of rigidity; the inflated ureteral support balloon supports the ureteral stent, preventing it from shifting and dislodging. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the ileal bladder expansion support drainage device of the present invention;

[0017] Figure 2 This is a cross-sectional internal view of the ileal support balloon and ureteral support balloon of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the four-lumen catheter of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal chambers of the four-lumen catheter of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the drain pipe of the present invention;

[0021] Figure 6 This is a schematic diagram of the ileal support balloon and the ureteral support balloon of the present invention;

[0022] Figure 7 This is a schematic diagram of the ileal bladder expansion support drainage device of the present invention before it is filled with water;

[0023] Figure 8 This is a schematic diagram of the ileal bladder expansion support drainage device of the present invention after it has been filled with water.

[0024] Explanation of reference numerals in the attached diagram: 1. Ileal support balloon; 2. Ureteral support balloon; 3. Ureter; 4. Ureteral stent; 5. Four-lumen catheter; 6. Ileum; 7. First incision; 8. Second incision; 9. Balloon inflation chamber; 10. Ileal urine drainage chamber; 11. Renal pelvis urine drainage chamber; 12. Renal pelvis; 13. Balloon inflation branch; 14. Ileal urine drainage branch; 15. Renal pelvis urine drainage branch; 16. Drainage tube. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0027] like Figures 1-8 As shown, an ileal bladder dilatation and support drainage device is provided, comprising an ileal support balloon 1, two ureteral support balloons 2 corresponding to two ureters 3 respectively, two ureteral stents 4 corresponding to two ureters 3 respectively, and a four-lumen catheter 5, wherein:

[0028] Ileal support balloon 1 is located in the ileum 6. The proximal ends of each ureteral support balloon 2 are connected to the ileal support balloon 1, and the distal ends of the ureteral support balloon 2 extend from the anastomosis between the ileum 6 and the ureter 3 into the ureter 3. A four-lumen catheter 5 is located in the ileal support balloon 1, and the proximal end of the four-lumen catheter 5 extends from the inside of the ileal support balloon 1 into the ileum 6 and then out of the body. A ureteral stent 4 is located in the ureter 3, and the distal end of the ureteral stent 4 is placed in the renal pelvis 12. The proximal end of the stent 4 passes through the corresponding ureteral support balloon 2 into the ileal support balloon 1 and is connected to the four-lumen catheter 5. The ileal support balloon 1 and the ureteral support balloon 2 are inflated with water through the proximal end of the four-lumen catheter 5 to expand the anastomosis between the ileum 6 and the ureter 3.

[0029] It should be noted that each proximal end is the end closest to the outside of the body, and each distal end is the end furthest from the outside of the body. The ileal support balloon 1 and the two ureteral support balloons 2 can be connected separately or integrally formed. The ileal support balloon 1 is located inside the ileum, and the four-lumen catheter 5 is located inside the ileal support balloon 1. Both ends of the ileal support balloon 1 have openings, and these two openings are sealed to the wall of the four-lumen catheter 5. The two ureteral support balloons 2 extend from the ileum 6 into the two ureters 3, and the two ureteral stents 4 are located in the two ureters 3 (the length of the ureteral stent 4 is approximately 240-270 mm). The tip (i.e., the distal end) of the ureteral stent 4 is shaped like a pig's tail and is placed in the two renal pelvises 12 (the distal end of the ureteral stent 4 has multiple drainage holes for draining the contents of the renal pelvis 12). Urine is drained into the ureteral stent 4, and the bottom end (i.e., the proximal end) of the ureteral stent 4 passes through the corresponding ureteral support balloon 2 and extends into the ileal support balloon 1, where it is fixedly connected to the four-lumen catheter 5. This allows urine in the renal pelvis 12 to be drained through the ureteral stent 4 and the four-lumen catheter 5. The tops (i.e., the distal ends) of the two ureteral support balloons 2 have openings, which are bonded to the outer wall of the corresponding ureteral stent 4 to form a seal. Water is inflated into the four-lumen catheter 5 from outside the body, causing the ileal support balloon 1 and the ureteral support balloon 2 to inflate. The ileal support balloon 1 then supports the ileum 6 (causing the ileum 6 to expand), and the ureteral support balloon 2 supports the ureter 3 (causing the ureter 3 to expand), preventing ureteral 3 stenosis. It also expands the anastomosis between the ileum 6 and the ureter 3, preventing anastomotic stenosis. For ease of description, specific directional descriptions have been added (and Figure 1 (For example), but the location is not specifically restricted. Figure 1 In this text, 'a' represents human skin and 'b' represents the stoma.

[0030] In one embodiment, the distal end of the four-lumen catheter 5 extends from the interior of the ileal support balloon 1 into the ileum 6. The four-lumen catheter 5 has four chambers along its length, namely a balloon water-filled chamber 9, an ileal urine drainage chamber 10, and two renal pelvis urine drainage chambers 11. The outlet and inlet of the ileal urine drainage chamber 10 are located at the two ends of the four-lumen catheter 5, respectively. The inlet of the balloon water-filled chamber 9 and the outlet of the renal pelvis urine drainage chambers 11 are both located at the proximal end of the four-lumen catheter 5.

[0031] The four-lumen catheter 5 has two first incisions 7 on its side wall, which are respectively corresponding to the two ureteral stents 4. Both first incisions 7 are located in the ileal support balloon 1 and serve as the inlet of the renal pelvis urine drainage cavity 11. The proximal end of each ureteral stent 4 is connected to the corresponding first incision 7.

[0032] A second incision 8 is also provided on the side wall of the four-lumen catheter 5. The second incision 8 is located inside the ileal support balloon 1 and serves as the outlet of the balloon water filling cavity 9.

[0033] In this embodiment, the left end (i.e., proximal end) of the four-lumen catheter 5 extends from inside the ileum support balloon 1 into the ileum 6 and then outwards. The right end (i.e., distal end) of the four-lumen catheter 5 extends from inside the ileum support balloon 1 into the ileum 6. The inlet of the ileal urine drainage cavity 10 is located at the right end of the four-lumen catheter 5, used to drain urine from the ileum 6 into the ileal urine drainage cavity 10 (wherein urine from the renal pelvis 12 may flow into the ileum 6 through the gap between the ureteral stent 4 and the ureter 3, and thus be discharged through the ileal urine drainage cavity 10), and flows out from the outlet of the ileal urine drainage cavity 10 (located at the left end of the four-lumen catheter 5). The two first incisions 7 and the second incision 8 on the side wall of the four-lumen catheter 5 are both wrapped in the ileum. The support balloon 1 has two first incisions 7 serving as inlets for two renal pelvis drainage cavities 11, with the outlet of the renal pelvis drainage cavity 11 located at the left end of the four-lumen catheter 5. The second incision 8 serves as the outlet for the balloon inflation cavity 9 (allowing for inflation of the ileal support balloon 1 and ureteral support balloon 2 through the inflation cavity 9), with the inlet of the inflation cavity 9 located at the left end of the four-lumen catheter 5. The bottom ends of the two ureteral stents 4 are fixedly connected to the two first incisions 7, and the bottom ends of the ureteral stents 4 are bonded to the first incisions 7, sealing the gap between the bottom ends of the ureteral stents 4 and the first incisions 7. This allows the ureteral stents 4 to guide urine from the renal pelvis 12 into the renal pelvis drainage cavity 11. The excretion tube 16 and the four-lumen catheter 5 can be made of silicone or polyurethane.

[0034] In one embodiment, the ileal bladder dilation and support drainage device further includes a drain tube 16, which has four chambers corresponding one-to-one with the four chambers in the four-lumen catheter 5. The drain tube 16 is provided with branch tubes that communicate with the four chambers respectively (each branch tube is fixedly connected to the drain tube 16). The four branch tubes are a balloon inflation branch tube 13, an ileal urine drainage branch tube 14, and two renal pelvis urine drainage branch tubes 15. The balloon inflation branch tube 13 is also provided with a one-way valve (to prevent liquid leakage after the ileal support balloon 1 and the ureteral support balloon 2 are inflated). The urine in the ileal urine drainage cavity 10 and the two renal pelvis urine drainage cavities 11 in the four-lumen catheter 5 passes through the excretion tube 16 and then reaches the ileal urine drainage branch 14 and the two renal pelvis urine drainage branch 15, respectively, and is discharged from the body through the ileal urine drainage branch 14 and the two renal pelvis urine drainage branch 15. Urine collection bags can be installed at the outlets of the ileal urine drainage branch 14 and the two renal pelvis urine drainage branch 15 to collect urine. The ileal support balloon 1 and the ureteral support balloon 2 are inflated with water through the balloon inflation branch 13.

[0035] In one embodiment, each of the ureteral support balloons 2 is cylindrical, and each of the ureteral support balloons 2 is perpendicular to the ileal support balloon 1. Both the ureteral support balloon 2 and the ileal support balloon 1 are made of non-compliant materials, which have rigidity after being inflated with water. The ureteral stent 4 is bonded to the ureteral support balloon 2 (i.e., the opening at the top of the ureteral support balloon 2 is bonded to the outer wall of the corresponding ureteral stent 4 to form a seal), preventing the ureteral stent 4 from falling off.

[0036] In this embodiment, the inflated ileal support balloon 1 is elliptical in shape, with a length of 7-10 cm in the left-right direction and a diameter of 3-5 cm after inflation. The ureteral support balloon 2 has a length of 10-15 cm in the vertical direction and a diameter of 0.5-0.8 cm after inflation. The distance between the two ureteral support balloons 2 is set at 3-4 cm, and they are perpendicular to the ileal support balloon 1. Both the ileal support balloon 1 and the ureteral support balloon 2 are non-compliant balloons, which have a certain degree of rigidity after inflation, preventing the ureteral stent 4 from moving and dislodging.

[0037] The working principle of this ileobladder expansion and support drainage device:

[0038] During use, water is injected through the balloon inflation tube 13. The water travels along the balloon inflation tube 13 and the balloon inflation cavity 9 to the ileal support balloon 1 and the ureteral support balloon 2, inflating them. This causes the ileal support balloon 1 to support the ileum 6, and the ureteral support balloon 2 to support the ureter 3, thus dilating the ureter 3 and preventing ureteral stenosis. It also dilates the anastomosis between the ileum 6 and the ureter 3, preventing anastomotic stenosis. Simultaneously, the ureteral support balloon 2 is perpendicular to the ileal support balloon 1, and each balloon is made of non-compliant material, possessing a certain rigidity after inflation. The ureteral stent 4 is bonded to the ureteral support balloon 2, and the inflated ureteral support balloon 2 provides support for the ureteral stent 4, preventing it from shifting and falling off. Before inflation, this ileal bladder dilation and support drainage device... Figure 7 As shown, after filling with water... Figure 8 As shown (and Figure 7 and Figure 8 The ileal support balloon 1 and ureteral support balloon 2 shown in the diagram are both cut open.

[0039] Urine produced in the renal pelvis 12 passes through the ureteral stent 4 and reaches the renal pelvis urine drainage cavity 11 in the four-lumen catheter 5, and is finally discharged through the excretion tube 16 and the renal pelvis urine excretion branch tube 15.

[0040] When urine in the renal pelvis 12 flows into the ureter 3 through the gap between the renal pelvis 12 and the ureteral stent 4, and then into the ileum 6, the ileal urine drainage cavity 10 in the four-lumen catheter 5 drains the urine that has flowed into the ileum 6, and finally discharges it through the excretion tube 16 and the ileal urine excretion branch tube 14.

[0041] This ileal-bladder dilatation and support drainage device works in conjunction with a four-lumen catheter, a ureteral stent, an ileal support balloon, and a ureteral support balloon. The ileal and ureteral support balloons are inflated with water, allowing the ileal balloon to support the ileum and the ureteral support balloon to support the ureter, thus dilating the ureter and preventing ureteral stenosis. It also dilates the anastomosis between the ileum and ureter, preventing anastomotic stenosis. Furthermore, the inflated ureteral and ileal support balloons possess a certain degree of rigidity; the inflated ureteral support balloon supports the ureteral stent, preventing it from shifting and dislodging.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An ileal bladder expansion and support drainage device, characterized in that: The ileal bladder dilatation and support drainage device includes an ileal support balloon (1), two ureteral support balloons (2) corresponding one-to-one with the two ureters (3), two ureteral stents (4) corresponding one-to-one with the two ureters (3), and a four-lumen catheter (5), wherein: The ileal support balloon (1) is located within the ileum (6). The proximal ends of each ureteral support balloon (2) are connected to the ileal support balloon (1), and the distal ends of the ureteral support balloons (2) extend from the anastomosis between the ileum (6) and the ureter (3) into the ureter (3). The four-lumen catheter (5) is located within the ileal support balloon (1), and the proximal end of the four-lumen catheter (5) extends from the interior of the ileal support balloon (1) into the ileum (6) and then further into the ileum (6). In vitro, the ureteral stent (4) is located in the ureter (3), and the distal end of the ureteral stent (4) is placed in the renal pelvis (12). The proximal end is inserted through the corresponding ureteral support balloon (2) into the ileal support balloon (1) and connected to the four-lumen catheter (5). The ileal support balloon (1) and the ureteral support balloon (2) are inflated with water through the proximal end of the four-lumen catheter (5) to expand the anastomosis between the ileum (6) and the ureter (3).

2. The ileal bladder expansion and support drainage device as described in claim 1, characterized in that: The distal end of the four-lumen catheter (5) extends from the interior of the ileal support balloon (1) into the ileum (6). The four-lumen catheter (5) has four chambers along its length, namely the balloon water-filled chamber (9), the ileal urine drainage chamber (10), and two renal pelvis urine drainage chambers (11). The outlet and inlet of the ileal urine drainage chamber (10) are located at the two ends of the four-lumen catheter (5), respectively. The inlet of the balloon water-filled chamber (9) and the outlet of the renal pelvis urine drainage chamber (11) are both located at the proximal end of the four-lumen catheter (5).

3. The ileal bladder expansion and support drainage device as described in claim 2, characterized in that: The four-lumen catheter (5) has two first incisions (7) on its side wall, which are respectively corresponding to the two ureteral stents (4). The two first incisions (7) are located in the ileal support balloon (1) and serve as the inlet of the renal pelvis urine drainage cavity (11). The proximal end of each ureteral stent (4) is connected to the corresponding first incision (7).

4. The ileal bladder expansion and support drainage device as described in claim 2, characterized in that: The four-lumen catheter (5) also has a second incision (8) on its side wall. The second incision (8) is located inside the ileal support balloon (1) and serves as the outlet of the balloon water filling chamber (9).

5. The ileal bladder expansion and support drainage device as described in claim 2, characterized in that: The ileal bladder expansion support drainage device also includes an excretion tube (16), which has four chambers that correspond one-to-one with the four chambers in the four-lumen catheter (5). The excretion tube (16) is provided with branch tubes that are connected to the four chambers respectively. The four branch tubes are a balloon water inflator (13), an ileal urine excretion branch tube (14), and two renal pelvis urine excretion branch tubes (15). The balloon water inflator (13) is also provided with a one-way valve.

6. The ileal bladder expansion and support drainage device as described in claim 1, characterized in that: The distal end of the ureteral stent (4) is provided with multiple drainage holes.

7. The ileal bladder expansion and support drainage device as described in claim 1, characterized in that: Each of the ureteral support balloons (2) is cylindrical in shape. Each of the ureteral support balloons (2) is perpendicular to the ileal support balloon (1). Both the ureteral support balloon (2) and the ileal support balloon (1) are made of non-compliant materials. After being inflated with water, they have hardness to prevent the ureteral stent (4) from falling off.

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