Visualizable controllable forward prostatic dilation catheter

Abstract

The application discloses a visual controllable forward prostate expansion catheter, which comprises a hard main pipe and a flexible guide pipe, a front water bag and a rear water bag wrapped outside the main pipe, a first pipe line and a second pipe line in communication with the front water bag and the rear water bag, a main flushing hole and a front camera module arranged at the front end of the guide pipe, and a control device for controlling the bending direction of the guide pipe. The hard main pipe and the flexible guide pipe are combined, the main pipe guarantees sufficient supporting force, and the guide pipe has good bending property; a doctor can easily adjust the front end direction of the catheter through the control device, operation is more convenient and flexible, the defects that the existing catheter operation is complicated and high in requirement are remarkably improved, and precise intubation is realized.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a visually controllable prostate dilation catheter. Background Technology

[0002] Transurethral balloon dilation of the prostate (TURP) is a novel minimally invasive surgical procedure for treating benign prostatic hyperplasia (BPH), independently developed by the team of Academician Guo Yinglu of the Department of Urology in my country. Its core treatment mechanism utilizes the mechanical dilation effect of a specially designed cylindrical balloon to expand the compressed prostatic urethral segment, thereby effectively reducing bladder outlet resistance. While this procedure offers the advantage of being minimally invasive, several technical limitations remain: First, the lack of a visual guidance system during the procedure prevents the operator from real-time monitoring of the dilation catheter's position within the urethra and bladder, potentially leading to catheter misalignment, urethral mucosal damage, or even bladder neck perforation. Second, the human urethra has three physiological narrowings (from proximal to distal: the internal urethral orifice, the membranous urethra, and the external urethral orifice). During catheter insertion, anatomical variations or improper operation can easily perforate these weak points, causing iatrogenic secondary urethral injury. Third, the current surgical outcome still heavily relies on the surgeon's experience and judgment, lacking objective quantitative standards for controlling balloon pressure and the degree of dilation, increasing surgical risks. These technical bottlenecks have hindered the standardization and promotion of this procedure and the improvement of its safety.

[0003] Patent documents CN205460381U and CN222056128U each disclose a visually controllable prostate dilation catheter with an endoscope. When used in conjunction with an endoscope, it reduces surgical risks to some extent. The former uses a plastic catheter with an internal metal guidewire, providing a certain degree of rigidity and stiffness; the latter uses a stainless steel catheter, offering even better rigidity and eliminating bending during insertion. Both of these visually controllable prostate dilation catheters are integral rigid structures, allowing only overall adjustment from the rear end during insertion. The front end cannot be guided or adjusted, making the operation cumbersome and placing high demands on clinicians. Summary of the Invention

[0004] To improve the operability of the visually controllable prostate dilation catheter, this invention provides a visually controllable prostate dilation catheter.

[0005] The technical solution adopted in this invention is as follows: A visually controllable prostate dilation catheter, comprising: a rigid main tube and a flexible guide tube connected as one unit; an anterior water balloon and a posterior water balloon, wrapped around the wall of the main tube near the end of the guide tube; a first tubing and a second tubing, disposed within the main tube and respectively communicating with the anterior water balloon and the posterior water balloon; a main flushing port, disposed at the front end of the guide tube and communicating with the inner cavities of the main tube and the guide tube; a front camera module, disposed at the front end of the guide tube; a handle, disposed at the rear end of the main tube; and a control device for controlling the bending direction of the guide tube.

[0006] Preferably, the guide tube includes an outer sleeve and a plurality of inner rings stacked along the axial direction, with adjacent inner rings hinged to each other, and all the rings together forming a flexible inner skeleton.

[0007] Preferably, the guide tube further includes an inner liner tube, and the outer sleeve, the inner ring body, and the inner liner tube are arranged sequentially from the outside to the inside.

[0008] Preferably, the inner ring body has hinged arms on its front and rear sides, and the inner ring body has front pull rope holes and rear pull rope holes in the left and right directions respectively. All the front pull rope holes together form the left pull rope channel, and all the rear pull rope holes together form the right pull rope channel. The control device includes a pull rope, a pulley, and a rotating handle. The two ends of the pull rope pass through the left pull rope channel and the right pull rope channel respectively. The middle part of the pull rope cooperates with the pulley. The rotating handle drives the pulley to rotate in the forward or reverse direction, and the inner ring body is tilted left and right through the pulley.

[0009] Preferably, the rotating handle is located at the tail of the handle.

[0010] Preferably, it further includes: a first liquid supply pipe, which is connected to the first pipeline for liquid supply; a second liquid supply pipe, which is connected to the second pipeline for liquid supply; and a third liquid supply pipe, which is connected to the inner cavity of the main pipe for liquid supply.

[0011] Preferably, it further includes: a rear camera module, disposed on the main tube and located on the rear side of the rear water bladder.

[0012] Preferably, it further includes: a main circuit that is electrically connected to the front camera module and the rear camera module is arranged inside the cavity of the main tube.

[0013] The present invention has the following beneficial effects: 1. Reliable catheterization: The combination of a rigid main tube and a flexible guide tube ensures sufficient support, while the flexible guide tube improves the flexibility during operation. The combination of the two improves the stability and safety of the dilation catheter during use. 2. Flexible guidance: The multi-layered articulated inner ring guide tube design has good flexibility, and doctors can easily adjust the direction of the catheter tip through the control device, making the operation simpler and more flexible. It significantly improves the shortcomings of the existing catheter operation, which is cumbersome and demanding, so that doctors of all levels, whether experienced or less experienced, can operate accurately and effectively. 3. Reduce surgical risks: With the setup of the front and rear camera modules, doctors can observe the position of the dilating catheter in the urethra and bladder in real time during insertion and dilation, which greatly reduces the risk of accidental injury to the urethra and bladder neck. The visualization function makes the surgical process more intuitive and safe, provides real-time feedback for the surgery, and enhances the controllability of the surgery. 4. Multiple fluid supply: Multiple fluid supply tubes can provide multi-channel fluid supply during the operation, ensuring that flushing or dilation can be flexibly selected during the dilation process, thereby improving the convenience of the operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0015] Figure 2 This is a cross-sectional view of section AA in an embodiment of the present invention.

[0016] Figure 3 This is a cross-sectional view of section BB in an embodiment of the present invention.

[0017] Figure 4 This is a cross-sectional view of the CC section in an embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of direction D in an embodiment of the present invention.

[0019] Figure 6 This is a schematic diagram of the guide tube in an embodiment of the present invention.

[0020] Figure 7 This is a schematic diagram of the assembly of the inner ring body in an embodiment of the present invention.

[0021] Figure 8 This is a schematic diagram of the assembly of the inner ring and the pull rope in an embodiment of the present invention.

[0022] Supervisor 1; Guide tube 2, outer sleeve 201, inner ring 202, inner liner tube 203, hinge arm 204, front pull rope hole 205, rear pull rope hole 206; Anterior water bladder 3; 4 posterior water sacs; First pipeline 5; Second pipeline 6; Flushing hole 7; Front camera module 8; Handle 9; 10 pull ropes; Rope pulley 11; Rotating handle 12; First liquid supply pipe 13; Second liquid supply pipe 14; Third liquid supply pipe 15; Rear camera module 16; Main line 17; Display screen 18. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0024] In the embodiments, such as Figures 1-8 The image shows a visually controllable prostate dilation catheter, comprising: a rigid main tube 1 and a flexible guide tube 2, connected as one unit; an anterior water balloon 3 and a posterior water balloon 4, wrapped around the wall of the main tube 1 near the guide tube 2; a first tubing 5 and a second tubing 6, disposed within the main tube 1 and communicating with the anterior water balloon 3 and the posterior water balloon 4 respectively; a main flushing port 7, located at the front end of the guide tube 2 and communicating with the inner cavities of the main tube 1 and the guide tube 2; a front camera module 8, located at the front end of the guide tube 2; a handle 9, located at the rear end of the main tube 1; and a control device for controlling the bending direction of the guide tube 2. This embodiment employs a combination of the rigid main tube 1 and the flexible guide tube 2. The rigid main tube 1 ensures sufficient support, while the flexible guide tube 2 improves flexibility during operation. The combination of the two enhances the stability and safety of the dilation catheter during use. Doctors can easily adjust the direction of the catheter tip through the control device, making the operation simpler and more flexible. This significantly improves upon the shortcomings of existing catheter operations, which are cumbersome and demanding, enabling reliable intubation and allowing both experienced and less experienced doctors to operate accurately and effectively.

[0025] In the embodiments, such as Figure 1 , Figures 6-8 As shown, the guide tube 2 includes an outer sleeve 201 and multiple axially stacked inner rings 202. Adjacent inner rings 202 are hinged together, and all rings 202 together form a flexible inner skeleton. The guide tube 2 also includes an inner liner 203, with the outer sleeve 201, inner rings 202, and inner liner 203 arranged sequentially from the outside to the inside. The multi-layered hinged inner rings 202 used in this embodiment are made of metal, and the guide tube 2 composed of them has good flexibility, can bend within a large range, and maintains good support performance. The outer sleeve 201 and inner liner 203 are thin plastic tubes, forming a highly integrated structure with the inner rings 202, avoiding connection problems that may be caused by multiple dispersed structures, and also providing good protection for the main circuit 17 inside the guide tube 2, improving the overall durability and service life.

[0026] In the embodiments, such as Figure 1 , Figures 6-8 As shown, the inner ring 202 has hinged arms 204 on both its front and rear sides. The inner ring 202 has front pull rope holes 205 and rear pull rope holes 206 on its left and right sides, respectively. All front pull rope holes 205 together form the left pull rope channel, and all rear pull rope holes 206 together form the right pull rope channel. The control device includes a pull rope 10, a pulley 11, and a rotating handle 12. The two ends of the pull rope 10 pass through the left and right pull rope channels, respectively. The middle of the pull rope 10 engages with the pulley 11. The rotating handle 12 drives the pulley 11 to rotate forward or backward, causing the inner ring 202 to tilt left or right. In this embodiment, by providing hinged arms 204 on both sides of the inner ring 202, and in conjunction with the design of the front pull rope holes 205 and rear pull rope holes 206, the guide tube can be flexibly adjusted during bending and deformation. The pull rope 10, the rope wheel 11, and the rotating handle 12 form a mechanized, intuitive, and easy-to-operate adjustment method, which greatly simplifies the operation process. It allows doctors to adjust the guidance without using too much force or complicated skills, making it suitable for clinicians of different levels. It is suitable for inserting a catheter through the three narrow areas of the urethra, improving the success rate of catheter insertion and avoiding damage to the urethra.

[0027] In the embodiments, such as Figure 1 As shown, the rotating handle 12 is located at the tail of the handle 9. Positioning the rotating handle 12 at the tail of the handle 9 allows the surgeon to hold and control the catheter more naturally during operation. This layout reduces wrist strain and enhances operational comfort, especially during prolonged surgeries, effectively reducing fatigue. It also facilitates finer and more precise adjustments, improving operational accuracy.

[0028] In the embodiments, such as Figures 1-5 As shown, it also includes: a first fluid supply tube 13, connected to the first conduit 5 for fluid supply; a second fluid supply tube 14, connected to the second conduit 6 for fluid supply; and a third fluid supply tube 15, connected to the inner cavity of the main tube 1 for fluid supply. Multiple fluid supply tubes can provide multi-channel fluid supply during the operation, ensuring flexible selection of irrigation or dilation operations during the dilation process, thereby improving surgical convenience.

[0029] In the embodiments, such as Figures 1-5As shown, it also includes a rear camera module 16, mounted on the main tube 1 and located behind the rear water balloon 4. A main circuit 17, electrically connected to the front camera module 8 and the rear camera module 16, is arranged inside the main tube 1. The main circuit 17 is externally connected to two independent display screens 18. With the rear camera module 16 assisting the front camera module 8, the surgeon can observe the position of the dilating catheter in the urethra and bladder in real time during insertion and dilation, significantly reducing the risk of accidental injury to the urethra and bladder neck. The visualization function makes the surgical process more intuitive and safer, providing real-time feedback and enhancing the controllability of the surgery.

[0030] Obviously, the above embodiments of the present invention are merely illustrative examples to illustrate the invention and are not intended to limit the implementation of the invention. Other obvious variations or modifications derived from the essential spirit of the invention still fall within the protection scope of the invention.

Claims

1. A visually controllable prostate dilation catheter, characterized in that, include: The rigid main tube (1) and the flexible guide tube (2) are connected as one unit; The front water bladder (3) and the rear water bladder (4) are wrapped around the outside of the tube wall of the main tube (1) near the guide tube (2); The first pipe (5) and the second pipe (6) are installed inside the main pipe (1) and are respectively connected to the front water bladder (3) and the rear water bladder (4); The main flushing hole (7) is located at the front end of the guide tube (2) and communicates with the inner cavity of the main tube (1) and the guide tube (2); A front camera module (8) is disposed at the front end of the guide tube (2); A handle (9) is located at the rear end of the main tube (1); A control device for controlling the bending direction of the guide tube (2).

2. The visually controllable prostate dilation catheter according to claim 1, characterized in that, The guide tube (2) includes an outer tube (201) and a plurality of inner rings (202) stacked along the axial direction. Two adjacent inner rings (202) are hinged to each other, and all the rings (202) together form a flexible inner skeleton.

3. The visually controllable prostate dilation catheter according to claim 2, characterized in that, The guide tube (2) also includes an inner liner tube (203), and the outer tube (201), the inner ring (202) and the inner liner tube (203) are arranged sequentially from the outside to the inside.

4. The visually controllable prostate dilation catheter according to claim 2 or 3, characterized in that, The inner ring (202) is provided with hinge arms (204) on the front and rear sides. The inner ring (202) is provided with front pull rope holes (205) and rear pull rope holes (206) in the left and right directions of the ring body respectively. All the front pull rope holes (205) together form the left pull rope channel, and all the rear pull rope holes (206) together form the right pull rope channel. The control device includes a pull rope (10), a pulley (11), and a rotating handle (12). The two ends of the pull rope (10) pass through the left pull rope channel and the right pull rope channel, respectively. The middle part of the pull rope (10) cooperates with the pulley (11). The rotating handle (12) drives the pulley (11) to rotate in the forward or reverse direction, and the inner ring (202) is tilted left and right by the pulley (11).

5. The visually controllable prostate dilation catheter according to claim 4, characterized in that, The rotating handle (12) is located at the tail of the handle (9).

6. The visually controllable prostate dilation catheter according to claim 1, characterized in that, Also includes: The first liquid supply pipe (13) is connected to the first pipeline (5) for liquid supply; The second liquid supply pipe (14) is connected to the second pipeline (6) for liquid supply; The third liquid supply pipe (15) is connected to the inner cavity of the main pipe (1) for liquid supply.

7. The visually controllable prostate dilation catheter according to claim 1, characterized in that, Also includes: The rear camera module (16) is mounted on the main tube (1) and located on the rear side of the rear water bladder (4).

8. The visually controllable prostate dilation catheter according to claim 7, characterized in that, Also includes: The main tube (1) has a main line (17) that is electrically connected to the front camera module (8) and the rear camera module (16) arranged inside its cavity.

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