Four-cavity tube and ureteral stent integrated catheter

Abstract

The utility model discloses a four-cavity tube and ureteral stent integrated catheter which comprises a four-cavity catheter, the four-cavity catheter comprises a main tube and four branch tubes arranged at the near end of the main tube, the four branch tubes are respectively a balloon water filling tube, a bladder excretion tube and two pelvis excretion tubes, four cavities communicated with the four branch tubes one by one are arranged in the main tube, and the four cavities are communicated with the four branch tubes one by one. The far end of the main pipe is provided with openings corresponding to the cavities respectively, the openings are a balloon water filling opening, a bladder excretion opening and two renal pelvis excretion openings respectively, and the far end of the main pipe is inserted into the bladder from the urethral orifice. According to the four-cavity tube and ureteral stent integrated catheter, the four cavities of the balloon water filling tube, the bladder excretion tube and the two pelvis excretion tubes are integrated into the same main tube, and the problem that in the prior art, all medical instruments are independent and used in a combined mode, and consequently the overall size is relatively large is solved; meanwhile, the catheter is integrated in the same main tube, so that the operation in the operation process is facilitated, the comfort degree of a patient is increased, and the cost for manufacturing the catheter is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a ureteral catheter integrated with a four-lumen tube and a ureteral stent. Background Art

[0002] In modern medicine, the combined use of medical devices during patient diagnosis and treatment has become a common phenomenon. As a common medical device in urology, urinary catheters are often used in conjunction with other devices in the treatment and diagnosis of various urinary system diseases.

[0003] During the treatment of conditions such as orthotopic bladder reconstruction and vesicovaginal fistula, a ureteral stent is used to drain urine from the renal pelvis. However, some urine can flow into the ileal bladder or bladder through the gap between the outer wall of the ureteral stent and the inner wall of the ureter. Therefore, a urinary catheter and ureter are often used together to achieve optimal treatment results.

[0004] However, currently both the urinary catheter and the ureteral stent are independent medical devices. Their combined use requires the insertion of the urinary catheter into the bladder through the internal urethral opening, and the insertion of the ureteral stent into the renal pelvis after passing through the internal urethral opening, bladder, and ureter in sequence. This results in cumbersome operations during the operation, increases the difficulty of the operation, and prolongs the operation time. The combined use of the urinary catheter and the ureteral stent results in a relatively large overall size, thereby greatly squeezing the human tissue around the wall of the internal urethral opening, causing discomfort to the patient, increasing the patient's pain and risk of infection, affecting their quality of life, and increasing the difficulty of subsequent treatment and care. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the background technology and to provide a ureteral catheter integrated with a four-lumen tube and a ureteral stent.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model provides a four-lumen tube and ureteral stent integrated urinary catheter, comprising:

[0008] A four-lumen catheter comprises a main tube and four branches arranged at the proximal end of the main tube, wherein the four branches are respectively a balloon filling tube, a bladder excretion tube, and two renal pelvis excretion tubes. The main tube is provided with four chambers connected one by one with the four branches, and the distal end of the main tube is provided with openings corresponding to the chambers, namely a balloon filling port, a bladder excretion port, and two renal pelvis excretion ports. The distal end of the main tube is inserted into the bladder through the internal urethra.

[0009] a balloon, arranged on the distal outer wall of the main tube and located in the bladder, the balloon being in communication with the balloon water filling port;

[0010] One end of the two ureteral stents is connected to the two renal pelvis excretion openings respectively, and the other end is inserted into the two ureters and then extended to the corresponding renal pelvis.

[0011] Preferably, the balloon is provided with a first bonding point and a second bonding point for bonding to the main tube, and the first bonding point is close to the proximal end of the main tube, and the second bonding point is close to the distal end of the main tube. The first bonding point extends downward from the bottom of the balloon, and the second bonding point extends from the top of the balloon to the inside of the balloon.

[0012] Preferably, the bladder drainage port and the two renal pelvis drainage ports are located at the end of the distal end of the main pipe, and the bladder drainage port and the two renal pelvis drainage ports are located above the second bonding point, and the balloon water filling port is located on the side wall of the distal end of the main pipe.

[0013] Preferably, the length of each adhesion is 8 to 12 mm.

[0014] Preferably, the width of the balloon after expansion is greater than the width of the internal opening of the urethra.

[0015] Preferably, a preset number of through holes are formed on one end of each ureteral stent located in the renal pelvis.

[0016] Preferably, the length of each ureteral stent is 270-300 mm.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This four-lumen catheter with ureteral stent integrates four chambers, namely the balloon filling tube, bladder drainage tube, and two renal pelvis drainage tubes, into a single main tube. This solves the problem of the existing technology where each medical device is used independently and in combination, resulting in a relatively large overall size. Furthermore, the integration into a single main tube facilitates operation during surgery, increases patient comfort, and reduces the cost of catheter production.

[0019] 2. This four-lumen catheter and ureteral stent integrated urinary catheter lowers the height of the bladder excretion port at the top of the main tube, so that the urine accumulated in the bladder can be discharged from the bladder excretion port after it is submerged to the height of the bladder excretion port, thereby reducing the accumulated amount of urine in the bladder, preventing urine retention and reducing complications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the utility model's integrated urinary catheter with four lumens and ureteral stent;

[0021] Figure 2 This is a schematic diagram of the structure of the four-lumen catheter in the present invention;

[0022] Figure 3It is a cross-sectional schematic diagram of the balloon and the main tube in the present invention;

[0023] Figure 4 It is a cross-sectional schematic diagram of the main pipe in the present utility model;

[0024] Figure 5 It is a cross-sectional schematic diagram of the balloon in the present invention.

[0025] Explanation of the accompanying symbols: 1. Four-lumen catheter; 11. Main tube; 12. Balloon water filling tube; 13. Bladder excretion tube; 14. Renal pelvis excretion tube; 2. Internal urethral opening; 3. Bladder; 4. Balloon; 5. Ureteral stent; 6. Ureter; 7. Renal pelvis; 8. First bonding point; 9. Second bonding point. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0027] like Figure 1-Figure 5 As shown, a four-lumen tube and ureteral stent integrated urinary catheter is provided, comprising:

[0028] The four-lumen catheter 1 comprises a main tube 11 and four branches disposed at the proximal end of the main tube 11, wherein the four branches are respectively a balloon filling tube 12, a bladder excretion tube 13, and two renal pelvis excretion tubes 14. The main tube 11 is provided with four chambers, each of which is connected to the four branches. The distal end of the main tube 11 is provided with openings corresponding to each chamber, namely a balloon filling port, a bladder excretion port, and two renal pelvis excretion ports. The distal end of the main tube 11 is inserted into the bladder 3 through the internal urethral opening 2;

[0029] The balloon 4 is arranged on the outer wall of the distal end of the main tube 11 and is located in the bladder 3. The balloon 4 is connected to the balloon water filling port;

[0030] One end of the two ureteral stents 5 is connected to the two renal pelvis excretion openings respectively, and the other end is inserted into the two ureters 6 and then extends to the corresponding renal pelvis 7.

[0031] It should be noted that the four chambers of the main tube 11 are respectively a balloon water filling chamber a, a bladder excretion chamber b and two renal pelvis excretion chambers c (such as Figure 4The figure shows a cross-sectional view of the main pipe 11. The balloon water filling pipe 12, the bladder excretion pipe 13 and the two renal pelvis excretion pipes 14 are fixedly connected to the bottom end (i.e., the proximal end) of the main pipe, and can be designed as a split type or formed as a whole. The balloon 4 is adhered to the top end of the main pipe 11. The balloon water filling chamber a in the main pipe 11 is connected to the balloon water filling pipe 12, the bladder excretion chamber b is connected to the bladder excretion pipe 13, and the two renal pelvis excretion chambers c are connected to the two renal pelvis excretion pipes 14 respectively. The top end of the main pipe 11 is provided with a balloon water filling port corresponding to the balloon water filling chamber a, a bladder excretion port corresponding to the bladder excretion chamber b, and renal pelvis excretion ports corresponding to the two renal pelvis excretion chambers c respectively. The balloon 4 is connected to the balloon water filling port (such as Figure 3 d) connected; the bottom ends of the two ureteral stents 5 are fixedly connected to the two renal pelvis excretion openings, respectively, and the top ends of the two ureteral stents 5 pass through the ureter 6 and are inserted into the corresponding renal pelvis 7; in this embodiment, the ureteral stent 5 is a tubular structure (pigtail tube) located inside the ureter 6. According to existing knowledge, it is known that the top end of the ureter 6 is fixedly connected to the renal pelvis 7, and the bottom end is inserted into the bladder 3;

[0032] During the operation, the entire urinary catheter is first inserted into the patient's body (in the initial state, the balloon 4 is in a deflated state, the top end of the four-lumen catheter 1 is inserted into the bladder 3 through the internal urethral opening 2, and the ureteral stent 5 is passed through the ureter 6 and inserted into the renal pelvis 7 and fixed. Then, physiological saline is filled into the balloon 4 through the balloon filling tube 12 and the balloon flushing port to expand the balloon 4. Since the width of the inflated balloon 4 is larger than the width of the internal urethral opening 2, the top end of the four-lumen catheter 1 is positioned in the bladder 3. Prevent the four-lumen catheter 1 from falling off); the urine produced in the renal pelvis 7 flows out through the ureteral stent 5, the renal pelvis excretion chamber c and the renal pelvis excretion tube 14 in sequence; at the same time, a portion of the urine in the renal pelvis 7 may flow into the bladder 3 through the gap between the outer wall of the ureteral stent 5 and the inner wall of the ureter 6. When the amount of urine in the bladder 3 exceeds the height of the bladder excretion opening, the urine in the bladder 3 passes through the bladder excretion opening to reach the bladder excretion chamber b, and then flows out of the bladder excretion tube 13, realizing normal urination of the patient.

[0033] In one embodiment, the balloon 4 is provided with a first bonding point 8 and a second bonding point 9 for bonding to the main tube 11, wherein the first bonding point 8 is close to the proximal end of the main tube 11, and the second bonding point 9 is close to the distal end of the main tube 11. The first bonding point 8 extends downward from the bottom of the balloon 4, and the second bonding point 9 extends from the top of the balloon 4 to the inside of the balloon 4.

[0034] The bladder excretion port and the two renal pelvis excretion ports are located at the distal end of the main pipe 11, and the bladder excretion port and the two renal pelvis excretion ports are located above the second bonding point 9, and the balloon water filling port is located on the side wall of the distal end of the main pipe 11;

[0035] It should be noted that, in this embodiment, each bonding point has a tubular structure, and each bonding point is integrally formed with the balloon 4. The first bonding point 8 is located at the bottom of the balloon, and the second bonding point 9 is located at the inner top wall of the balloon 4 (the second bonding point 9 extends from the inner top wall of the balloon 4 to the inside of the balloon 4). The main pipe 11 is inserted into the interior of the balloon 4 and is bonded to the main pipe 11 through each bonding point to achieve fixation between the balloon 4 and the main pipe 11; since the second bonding point 9 extends from the inner top wall of the balloon 4 to the inside of the balloon 4, the protruding part of the top of the main pipe 11 is reduced, and the position height of the bladder excretion port at the top of the main pipe 11 is lowered, so that the urine accumulated in the bladder 3 can be discharged from the bladder excretion port after it is submerged to the height of the bladder excretion port, thereby reducing the accumulated amount of urine in the bladder 3, preventing urine retention, and reducing complications.

[0036] In one embodiment, the length of each bonding point is 8 to 12 mm; the length of each bonding point is not limited, such as 10 mm.

[0037] In one embodiment, each ureteral stent 5 is provided with a preset number of through holes at one end located in the renal pelvis 7; urine in the renal pelvis 7 flows into the ureteral stent 5 through the through holes and is then discharged. The number of through holes is not limited and can be set according to actual needs.

[0038] In one embodiment, the length of each ureteral stent 5 is 270-300 mm. There is no limitation on the length of the ureteral stent 5 and it can be set according to actual needs, such as 300 mm.

[0039] The four-lumen tube and ureteral stent integrated urinary catheter integrates the four chambers of the balloon water filling tube, the bladder excretion tube and the two renal pelvis excretion tubes into the same main tube, solving the problem of each medical device being used independently and in combination in the prior art, resulting in a relatively large overall size. At the same time, integration into the same main tube facilitates operation during surgery, increases patient comfort, and reduces the cost of making the urinary catheter. By lowering the height of the bladder excretion port at the top of the main tube, the urine accumulated in the bladder can be discharged from the bladder excretion port after it is submerged to the height of the bladder excretion port, thereby reducing the accumulated amount of urine in the bladder, preventing urine retention, and reducing complications.

[0040] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A four-lumen catheter and ureteral stent integrated catheter, characterized by: The four-lumen tube and ureteral stent integrated urinary catheter includes: A four-lumen catheter (1) comprises a main tube (11) and four branch tubes arranged at the proximal end of the main tube (11), wherein the four branch tubes are respectively a balloon water filling tube (12), a bladder excretion tube (13) and two renal pelvis excretion tubes (14); the main tube (11) is provided with four chambers which are respectively connected to the four branch tubes, and the distal end of the main tube (11) is provided with openings corresponding to the chambers, namely a balloon water filling port, a bladder excretion port and two renal pelvis excretion ports; the distal end of the main tube (11) is inserted into the bladder (3) through the internal urethra opening (2); A balloon (4) is arranged on the outer wall of the distal end of the main tube (11) and is located in the bladder (3), and the balloon (4) is connected to the balloon water filling port; Two ureteral stents (5) have one end connected to the two renal pelvis excretion openings respectively, and the other end is inserted into the two ureters (6) and then extends into the corresponding renal pelvis (7).

2. The four-lumen tube and ureteral stent integrated urinary catheter according to claim 1, characterized in that: The balloon (4) is provided with a first bonding point (8) and a second bonding point (9) for bonding to the main tube (11), wherein the first bonding point (8) is close to the proximal end of the main tube (11), and the second bonding point (9) is close to the distal end of the main tube (11), the first bonding point (8) extends downward from the bottom of the balloon (4), and the second bonding point (9) extends from the top of the balloon (4) to the inside of the balloon (4).

3. The four-lumen catheter and ureteral stent integrated urinary catheter according to claim 2, characterized in that: The bladder excretion port and the two renal pelvis excretion ports are located at the distal end of the main pipe (11), and the bladder excretion port and the two renal pelvis excretion ports are located above the second bonding point (9), and the balloon water filling port is located on the side wall of the distal end of the main pipe (11).

4. The four-lumen catheter and ureteral stent integrated urinary catheter according to claim 2, characterized in that: The length of each adhesion is 8 to 12 mm.

5. The four-lumen tube and ureteral stent integrated urinary catheter according to claim 1, characterized in that: The width of the balloon (4) after expansion is greater than the width of the internal urethral opening (2).

6. The four-lumen tube and ureteral stent integrated urinary catheter according to claim 1, characterized in that: A preset number of through holes are provided at one end of each ureteral stent (5) located in the renal pelvis (7).

7. The four-lumen tube and ureteral stent integrated urinary catheter according to claim 1, characterized in that: The length of each ureteral stent (5) is 270-300 mm.

Images