Ureter guide sheath capable of reducing internal pressure of renal pelvis and bladder pressure

Abstract

The utility model belongs to the field of ureter guiding sheaths, particularly relates to a ureter guiding sheath capable of reducing internal pressure of a renal pelvis and pressure of a bladder, and aims to solve the problems that when an existing guiding sheath injects water into a kidney during an operation, the pressure of the kidney is too large, water flows back into blood, infection risk is increased, and the operation time is prolonged. Liquid in the bladder is gradually increased, bladder pressure is increased, the bladder is overfilled, and the bladder function is damaged. According to the scheme, the catheter comprises a guide sheath tube, a bendable catheter is arranged at the front end of the guide sheath tube, a plurality of evenly-distributed second holes are formed in the outer portion, away from the bendable catheter, of the guide sheath tube, and a plurality of evenly-distributed first holes are formed in the outer portion of the front end of the bendable catheter and the outer portion of the front end of the guide sheath tube. Through the arrangement of the first hole and the second hole, liquid in the kidney and the bladder can be further drained out of the body through the liquid passing ability of the measuring holes, the pressure in the kidney and the pressure of the bladder are effectively relieved, and it is ensured that drainage is more sufficient and effective.

Description

Technical Field

[0001] This utility model relates to the field of ureteral guiding sheath technology, and in particular to a ureteral guiding sheath that can reduce intrarenal pressure and bladder pressure during surgery. Background Technology

[0002] A ureteral guiding sheath is a commonly used medical device in urological surgery. It mainly consists of a sheath, a dilator, and a Luer connector. It is used to establish a channel for instruments such as endoscopes to enter the urinary tract. By guiding the flexible ureteroscope into the ureter or renal pelvis through a catheter, it facilitates surgery or examination and treatment and reduces damage to the patient.

[0003] Currently, when existing ureteral guiding sheaths inject water into the kidneys, the pressure in the kidneys is too high, causing fluid to flow back into the blood, increasing the circulatory load and the risk of infection. With the prolonged operation time and the excessively rapid infusion rate, the amount of fluid in the bladder will also gradually increase, leading to excessive bladder pressure and causing bladder dysfunction. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as excessive pressure in the kidneys during water injection, leading to water reflux into the bloodstream and increasing the risk of infection; and the increased bladder pressure caused by the prolonged operation time, which can impair bladder function. Therefore, this invention proposes a ureteral guiding sheath that can reduce intrarenal pelvic pressure and bladder pressure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A ureteral guiding sheath that can reduce intrarenal pelvic pressure and bladder pressure includes:

[0007] The guide sheath includes a flexible conduit at its front end. The guide sheath and the flexible conduit are integrally formed. The guide sheath has a plurality of evenly distributed No. 2 holes on its outer side away from the flexible conduit. Both the flexible conduit and the guide sheath have a plurality of evenly distributed No. 1 holes on their front outer sides.

[0008] In one possible design, the plurality of second holes and the plurality of first holes are arranged in an alternating manner.

[0009] In one possible design, scale lines are provided on both sides of the outer side of the guide sheath, and a mark is fixed at every 1cm interval on the outer side of the guide sheath at the scale lines.

[0010] In one possible design, the diameter of the first hole is 0.5mm-1.0mm, and the diameter of the second hole is 0.5mm-2.0mm.

[0011] In one possible design, the tip of the flexible conduit is flat or oblique.

[0012] In one possible design, the tail end of the guide sheath is fixedly connected to an interface, and a finger ring is fixedly provided on one side of the interface.

[0013] In this application, when the ureteral guiding sheath is first taken out and its integrity is checked to ensure that its upper part is not damaged or missing. Then, the patient is given the necessary preoperative preparations, including positioning, anesthesia, and skin disinfection.

[0014] Subsequently, medical staff, wearing sterile gloves, retrogradely inserted a guidewire into the ureter on the affected side under endoscopic monitoring. Using a finger ring to hold the interface, the guidewire was inserted into the inner core of the guide sheath and flexible catheter, with the tip aligned with the patient's ureteral inlet. Care was taken to use graduations and markings to determine the insertion depth, ensuring precise operation. Simultaneously, with the assistance of medical imaging technology (such as X-rays and ultrasound), the guide sheath was slowly inserted into the patient's ureter until it passed through the bladder and approached or reached the kidney. During insertion, care was taken to maintain the stability and resistance of the guide sheath to avoid damage to the ureteral tissue. After successfully entering the ureter through the tip of the flexible catheter, the correct positions of the guide sheath and flexible catheter were confirmed. The inner core of the guide sheath was then withdrawn. Simultaneously, an electronic ureteroscope could be inserted into the guide sheath for observation and related operations. Water was injected into the kidney through the endoscope to maintain a clear view, and the curvature of the flexible catheter could be adjusted to ensure the tip was in the correct position.

[0015] During fluid infusion, renal pressure gradually increases. When renal pressure becomes excessive, the presence of two orifices (No. 1 and No. 2) allows for maximum drainage of fluid through the side openings of the catheter sheath, effectively reducing intrarenal pressure and ensuring more thorough drainage. As the procedure continues, some fluid may flow into the bladder, gradually increasing bladder volume and eventually leading to overdistension and impaired bladder function. Adding cavities in the area of ​​the catheter sheath located in the bladder allows for adequate drainage of bladder fluid during the procedure.

[0016] This utility model has the following beneficial effects:

[0017] In this invention, the design of orifices one and two allows fluid to automatically flow out from the side wall orifices (orifices one and two) when water pressure increases, further preventing fluid reflux and effectively reducing intrarenal pressure. This ensures more sufficient and effective drainage, thereby guaranteeing the adequacy and safety of drainage and reducing the risk of infection. Simultaneously, it avoids bladder overdistension, thus protecting bladder function.

[0018] The design of this invention, with its scale lines and markings, facilitates the determination of the length of the guide sheath entering the ureter, significantly improving the accuracy and controllability of the guide sheath's entry length into the ureter, thereby ensuring the precision and safety of the treatment process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall side view of a ureteral guiding sheath that can reduce intrarenal pelvic pressure and bladder pressure according to the present invention.

[0020] Figure 2 This is a schematic diagram of the overall front view of a ureteral guiding sheath that can reduce intrarenal pelvic pressure and bladder pressure according to the present invention.

[0021] Figure 3 This is an enlarged structural diagram of part A of a ureteral guiding sheath that can reduce intrarenal pelvic pressure and bladder pressure according to the present invention.

[0022] Figure 4 This is an enlarged structural diagram of part B of a ureteral guiding sheath that can reduce intrarenal pelvic pressure and bladder pressure according to the present invention.

[0023] In the diagram: 1. Guide sheath; 2. Flexible guide tube; 3. Marker; 4. Interface; 5. Ring; 6. Hole No. 1; 7. Hole No. 2; 8. Scale line. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figure 1-4 A guide sheath comprising:

[0027] The guide sheath 1 and the flexible conduit 2 are integrally formed. Multiple evenly distributed holes 7 are opened on the outside of the guide sheath 1 away from the flexible conduit 2, while multiple evenly distributed holes 6 are opened on the front end of the guide sheath 1 and the outside of the flexible conduit 2. This design allows the liquid to automatically flow out from these holes when the water pressure inside the guide sheath increases, achieving the effect of decompression.

[0028] The multiple No. 2 holes 7 located in the guide sheath tube 1 and the flexible catheter 2 are staggered with the No. 1 hole 6. This staggered arrangement makes the decompression effect more uniform and further improves the drainage efficiency.

[0029] The guide sheath 1 has scale lines 8 on both sides of its exterior, and a mark 3 is fixed at every 1cm interval on the scale lines 8. This design allows medical staff to more accurately control the insertion depth of the guide sheath during operation, ensuring the accuracy and safety of the operation.

[0030] The diameter of hole 6 is 0.5mm-1.0mm, while the diameter of hole 7 is 0.5mm-2.0mm. This hole design allows the liquid to flow out more smoothly from the holes when the water pressure increases, thus achieving a better decompression effect. When fully inserted, the area of ​​hole 6 and hole 7 covers the ureteral opening to the bladder neck.

[0031] This application can be used in the field of ureteral guiding sheath technology for reducing intrarenal pelvic pressure and bladder pressure, and can also be used in other fields applicable to this application.

[0032] Example 2

[0033] Based on Embodiment 1, Embodiment 2 further includes: a ureteral guiding sheath that can reduce intrarenal pelvic pressure and bladder pressure. It is applied to the field of ureteral guiding sheath technology that can reduce intrarenal pelvic pressure and bladder pressure. The front end of the flexible catheter 2 is designed to be flat or oblique, which can adapt to different medical operation needs. The flat design can usually provide a stable contact surface, which is convenient to play a role when stable and uniform guidance is required. The oblique design increases the contact area with the kidney, which can guide and aspirate larger stones and drainage fluid.

[0034] The end of the guide sheath 1 is fixedly connected to the interface 4, and a finger ring 5 is fixedly installed on one side of the interface 4. This design allows medical staff to more easily hold and manipulate the guide sheath during operation through the finger ring 5, improving the convenience and stability of the operation.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ureteral guiding sheath capable of reducing intrarenal pelvic pressure and bladder pressure, characterized in that, include: The guide sheath (1) has a flexible conduit (2) at its front end. The guide sheath (1) and the flexible conduit (2) are integrally formed. The guide sheath (1) has a plurality of evenly distributed second holes (7) on its exterior away from the flexible conduit (2). The flexible conduit (2) and the guide sheath (1) both have a plurality of evenly distributed first holes (6) on their front exteriors.

2. The ureteral guiding sheath according to claim 1, characterized in that, The plurality of second holes (7) and the plurality of first holes (6) are arranged in an alternating manner.

3. The ureteral guiding sheath according to claim 1, characterized in that, The guide sheath (1) has scale lines (8) on both sides of its exterior, and a mark (3) is fixed at every 1cm interval on the exterior of the guide sheath (1) at the scale line (8).

4. A ureteral guiding sheath according to claim 2, characterized in that, The diameter of the first hole (6) is 0.5mm-1.0mm, and the diameter of the second hole (7) is 0.5mm-2.0mm.

5. A ureteral guiding sheath according to claim 1, characterized in that, The front end of the flexible conduit (2) is flat or oblique.

6. A ureteral guiding sheath according to claim 1, characterized in that, The tail end of the guide sheath (1) is fixedly connected to an interface (4), and a finger ring (5) is fixedly provided on one side of the interface (4).

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