Balloon expansion equipment for urinary surgery endoscopic surgery

Abstract

The invention relates to the technical field of urinary surgery, in particular to a balloon expansion device for urinary surgery endoscopic surgery, which comprises an air bag, a catheter and an adjusting mechanism, the catheter horizontally penetrates through the air bag and is communicated with the adjusting mechanism. The interior of the air bag is divided into a plurality of independent inner cavities through the first diaphragm, the second diaphragm and the third diaphragm, and independent expansion control over all areas is achieved by matching with the filling pipes and the adjusting mechanisms which are in one-to-one correspondence; an operator can accurately adjust the filling degree of different inner cavities according to the anatomical structure difference of the surgical site, excessive expansion of a non-target area is avoided, the accuracy of surgical operation is remarkably improved, and the device is particularly suitable for fine treatment of local tissue in a complex urinary surgery endoscopic surgery.

Description

Technical Field

[0001] This invention relates to the field of urological surgery, and more particularly to a balloon dilation device for urological laparoscopic surgery. Background Technology

[0002] In urological laparoscopic surgery, balloon dilation devices are key tools for achieving luminal dilation and creating operating space, and are widely used in the treatment of conditions such as ureteral stricture and benign prostatic hyperplasia. Existing devices typically consist of an inflatable balloon, a delivery catheter, and an inflation control component. The balloon inflates by injecting liquid or gas, using mechanical force to dilate the target tissue. Clinically, to adapt to different anatomical structures, the balloon often adopts a one-piece or segmented design, and its inflation state is controlled through a single channel or a simple multi-channel structure, relying on the surgeon's experience to judge the degree of dilation.

[0003] However, existing technologies have obvious limitations: integral balloons are difficult to expand precisely in localized areas and are prone to causing excessive pressure on non-target areas; segmented balloons lack independent adjustment mechanisms for multi-channel control, making it difficult to accurately match the pressure of each segment to the surgical needs; at the same time, most devices do not integrate pressure monitoring functions, requiring the surgeon to operate by feel, which increases the risk of tissue damage and makes it difficult to meet the requirements of precision and safety in minimally invasive surgery. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides the following technical solution:

[0005] A balloon dilation device for urological laparoscopic surgery includes a balloon, a catheter, and an adjustment mechanism; the catheter extends horizontally through the balloon, and the adjustment mechanism is connected to the catheter.

[0006] As an improvement to the above technical solution, a first diaphragm is vertically arranged inside the airbag, and a second diaphragm and a third diaphragm are horizontally arranged inside the airbag. The first diaphragm intersects with the second and third diaphragms, dividing the internal space of the airbag into several equal cavities.

[0007] As an improvement to the above technical solution, the catheter has several filling tubes distributed inside. One end of the filling tube is connected to the interior of several lumens, and the other end of the filling tube is connected to the adjustment mechanism.

[0008] As an improvement to the above technical solution, the adjustment mechanism includes a housing, with several rigid pipes connected to one side of the housing and a pipe joint connected to the other end of the housing. An electric push rod is sealed and fixed through the side wall of the housing, and the output shaft of the electric push rod is located inside the housing and fixed with a latex plug.

[0009] As an improvement to the above technical solution, connecting sleeves are provided at both ends of the airbag, and a sealed structure is formed between the connecting sleeves, the airbag and the duct.

[0010] As an improvement to the above technical solution, a plug is provided at the end of the catheter, and a sealing structure is formed between the plug and the catheter; a guide wire and a drainage tube are provided inside the catheter.

[0011] As an improvement to the above technical solution, the rigid tube and the filling tube are interconnected; the latex plug and the rigid tube are in one-to-one correspondence, and when the electric push rod reaches its maximum stroke, the latex plug completely seals the end of the rigid tube.

[0012] As an improvement to the above technical solution, pressure detection units are provided in several inner cavities, and the pressure detection units are fixed on the first diaphragm.

[0013] The beneficial effects of this invention are:

[0014] 1. This invention divides the interior of the balloon into several independent cavities through the first, second, and third diaphragms, and with corresponding filling tubes and adjustment mechanisms, achieves independent expansion control of each area. The surgeon can precisely adjust the filling degree of different cavities according to the differences in the anatomical structure of the surgical site, avoiding over-expansion of non-target areas, significantly improving the precision of surgical operation, and is especially suitable for the fine treatment of local tissues in complex urological endoscopic surgery.

[0015] 2. This invention sets pressure detection units in several cavities, which can monitor the expansion pressure of each area in real time, and achieve dynamic adjustment of pressure through the cooperation of electric push rod and latex plug. This design gets rid of the traditional operation mode that relies on the surgeon's touch, which can effectively avoid tissue damage caused by excessive pressure, reduce the risk of surgical complications, greatly improve the safety of the operation, and meet the strict requirements of minimally invasive surgery for operation safety.

[0016] 3. The catheter designed in this invention integrates a guidewire and a drainage tube inside, which can simultaneously complete the device guidance and positioning and drainage of fluid accumulation in the surgical area while realizing the balloon dilation function, without the need for additional instrument replacement, thus simplifying the surgical procedure; the sealing structure design of the connecting sleeve and the plug ensures that the filling medium does not leak, improves the reliability of the device, and makes the surgical operation more efficient and convenient, adapting to the needs of complex clinical surgical scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal structure of the airbag;

[0018] Figure 2 This is a schematic diagram of the overall structure of the balloon expansion device;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the adjustment mechanism;

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of a local structure at point A;

[0021] Figure 5 for Figure 2 Enlarged schematic diagram of the local structure at point B.

[0022] Reference numerals: 1. Airbag; 101. Inner cavity; 2. First diaphragm; 3. Second diaphragm; 4. Third diaphragm; 5. Connecting sleeve; 6. Conduit; 7. Plug; 8. Filling tube; 9. Adjustment mechanism; 901. Box body; 902. Rigid tube; 903. Pipe joint; 904. Electric push rod; 905. Latex plug; 10. Guide wire tube; 11. Drainage tube; 12. Pressure detection unit. Detailed Implementation

[0023] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0024] Please see Figures 1 to 5 A balloon expansion device for urological laparoscopic surgery includes a balloon 1, a catheter 6, and an adjustment mechanism 9; the catheter 6 extends horizontally through the balloon 1, and the adjustment mechanism 9 is connected to the catheter 6.

[0025] In this embodiment, the balloon 1 can form an independent cavity 101 through the internal diaphragm to achieve precise zonal expansion; the catheter 6 runs horizontally through the balloon 1, serving as both an inflation passage and integrating other functional components to assist the surgery; the adjustment mechanism 9 is connected to the catheter 6 and can control the inflation state of each cavity 101; the three work together to achieve precise, safe and efficient urological endoscopic surgical expansion operation, improving the quality and safety of the surgery.

[0026] In this invention, a first diaphragm 2 is vertically arranged inside the airbag 1, and a second diaphragm 3 and a third diaphragm 4 are horizontally arranged inside the airbag 1. The first diaphragm 2 intersects with the second diaphragm 3 and the third diaphragm 4, dividing the internal space of the airbag 1 into several equal cavities 101.

[0027] In this embodiment, the first diaphragm 2 inside the balloon 1 is vertically arranged, while the second diaphragm 3 and the third diaphragm 4 are horizontally arranged. The three intersect each other, dividing the internal space of the balloon 1 into several cavities 101. This structure allows for independent expansion of each cavity 101, adapting to the anatomical needs of different surgical sites, improving the precision of expansion, avoiding unnecessary pressure on non-target areas, and better meeting the refined operational requirements of urological endoscopic surgery.

[0028] In this invention, the catheter 6 has several filling tubes 8 distributed inside. One end of the filling tube 8 is connected to the interior of several lumens 101, and the other end of the filling tube 8 is connected to the adjustment mechanism 9.

[0029] In this embodiment, one end of several filling tubes 8 distributed inside the catheter 6 is connected to the interior of several lumens 101, and the other end is connected to the adjustment mechanism 9, forming a filling passage from the adjustment mechanism 9 to the lumens 101. Filling medium can be delivered to each lumen 101. With the help of the adjustment mechanism 9, the filling state of different lumens 101 can be controlled separately, ensuring the independence and controllability of the expansion of each area and assisting in precise surgical operation.

[0030] In this invention, the adjustment mechanism 9 includes a housing 901. A plurality of rigid pipes 902 are connected and installed on one side of the housing 901, and a pipe joint 903 is connected to the other end of the housing 901. An electric push rod 904 is sealed and fixed through the side wall of the housing 901. The output shaft of the electric push rod 904 is located inside the housing 901 and is fixed with a latex plug 905.

[0031] In this embodiment, one side of the housing 901 of the adjustment mechanism 9 is connected to several rigid pipes 902, and the other end is connected to a pipe joint 903. The output shaft of the electric push rod 904, which is sealed and fixed on the side wall, is connected to a latex plug 905. The rigid pipes 902 can be connected to the inflation pipe 8. The inflation medium is introduced through the pipe joint 903. The electric push rod 904 drives the latex plug 905 to move, which can control the opening and closing of the rigid pipes 902, realize precise control of each inflation path, and ensure the controllability of the expansion of each area of ​​the airbag 1.

[0032] In this invention, connecting sleeves 5 are provided at both ends of the airbag 1, and a sealing structure is formed between the connecting sleeves 5, the airbag 1 and the conduit 6.

[0033] In this embodiment, the connecting sleeves 5 at both ends of the airbag 1 form a sealed structure between the connecting sleeves 5, the airbag 1 and the catheter 6, which can effectively prevent the filling medium from leaking from the connection point of the three, ensure stable filling pressure, avoid affecting the expansion effect of the airbag 1 due to medium leakage, and at the same time prevent body fluid from entering the device and causing pollution, thereby improving the reliability and safety of the device and meeting the sterile requirements of surgery.

[0034] In this invention, a plug 7 is provided at the end of the catheter 6, and a sealing structure is formed between the plug 7 and the catheter 6; a guide wire tube 10 and a drainage tube 11 are provided inside the catheter 6.

[0035] In this embodiment, the plug 7 at the end of the catheter 6 forms a sealed structure with the catheter 6, which can prevent fluid leakage inside the catheter 6 and ensure stable internal pressure of the device. The guide wire tube 10 inside the catheter 6 allows the guide wire to pass through, assisting the catheter 6 in accurately positioning to the target site during surgery and improving operational accuracy. The drainage tube 11 can drain fluid in the cavity, such as dilation medium, in a timely manner during or after surgery, which helps maintain a clear field of vision in the surgical area. At the same time, it can quickly adjust the pressure of the relevant inner cavity 101 of the balloon 1, shortening the operation time. The overall structure together improves the safety of the device and the efficiency of the surgery.

[0036] In this invention, the rigid tube 902 and the filling tube 8 are interconnected; the latex plug 905 corresponds one-to-one with the rigid tube 902, and when the electric push rod 904 reaches its maximum stroke, the latex plug 905 completely seals the end of the rigid tube 902.

[0037] In this embodiment, the rigid tube 902 is interconnected with the filling tube 8, which can stably deliver the filling medium in the adjusting mechanism 9 to the filling tube 8, providing a channel for the filling of the inner cavity 101 of the airbag 1. The latex plug 905 corresponds one-to-one with the rigid tube 902, which can precisely control the opening and closing of the corresponding rigid tube 902. When the electric push rod 904 reaches its maximum stroke, the latex plug 905 can completely seal the end of the rigid tube 902, thereby cutting off the medium delivery of the corresponding filling tube 8, realizing precise control of the filling state of the specific inner cavity 101 of the airbag 1, avoiding medium backflow or pressure runaway, and ensuring the stability and safety of the expansion operation during surgery.

[0038] In this invention, a pressure detection unit 12 is provided in several inner cavities 101, and the pressure detection unit 12 is fixed on the first diaphragm 2.

[0039] In this embodiment, pressure detection units 12 installed in several cavities 101 can monitor the pressure changes of their respective cavities 101 in real time, providing accurate pressure data for surgical operations. This avoids tissue damage due to excessive pressure or the expansion effect being affected by insufficient pressure. The pressure detection units 12 are fixed on the first diaphragm 2, which can ensure their stable position and reduce detection errors caused by device shaking. This allows medical staff to keep track of the pressure of each cavity 101 in a timely manner, and then precisely control the medium delivery of the filling tube 8 through the adjustment mechanism 9, ensuring the safety and accuracy of the balloon 1 expansion process.

[0040] When using this device, first insert the guidewire through the guidewire tube 10 inside the catheter 6. With the help of the guidewire, the catheter 6 and the connected balloon 1 are precisely delivered to the target site of the urological endoscopic surgery. At this time, the connecting sleeves 5 at both ends of the balloon 1 form a seal with the catheter 6, and the plug 7 at the end of the catheter 6 also ensures its internal seal, preventing subsequent leakage of media. During operation, the adjustment mechanism 9 is activated. If it is necessary to inflate a certain cavity 101 of the balloon 1, the electric push rod 904 next to the corresponding rigid tube 902 drives the latex plug 905 to retract before reaching its maximum stroke, keeping the rigid tube 902 connected to the filling tube 8, and through the pipe connector 903 to the housing 90 The filling medium injected into the balloon 1 flows into the corresponding inner cavity 101 through the rigid tube 902 and the filling tube 8, causing the balloon 1 to expand locally. The pressure detection unit 12 fixed on the first diaphragm 2 monitors the pressure of each inner cavity 101 in real time and feeds back the data. When the pressure of a certain inner cavity 101 reaches the required level or when it is necessary to stop filling, the electric push rod 904 is advanced to the maximum stroke, and the latex plug 905 completely seals the end of the corresponding rigid tube 902, cutting off the medium delivery. If it is necessary to adjust the pressure or drain fluid after surgery, some of the medium can be discharged through the drainage tube 11 in the catheter 6. The balloon 1 expansion state is precisely controlled throughout the process, ensuring the safety of the surgical operation.

[0041] The above embodiments are merely illustrative of the technical solutions of the present invention and are not intended to limit it. Anyone skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A balloon dilation device for urological laparoscopic surgery, characterized in that, It includes an airbag (1), a conduit (6), and an adjustment mechanism (9); the conduit (6) extends horizontally through the airbag (1), and the adjustment mechanism (9) is connected to the conduit (6).

2. The balloon dilation device for urological endoscopic surgery according to claim 1, characterized in that, A first diaphragm (2) is vertically arranged inside the airbag (1), and a second diaphragm (3) and a third diaphragm (4) are horizontally arranged inside the airbag (1). The first diaphragm (2), the second diaphragm (3), and the third diaphragm (4) intersect each other, dividing the internal space of the airbag (1) into several cavities (101).

3. The balloon dilation device for urological endoscopic surgery according to claim 1, characterized in that, The catheter (6) has several filling tubes (8) distributed inside. One end of the filling tube (8) is connected to the interior of several lumens (101), and the other end of the filling tube (8) is connected to the adjustment mechanism (9).

4. The balloon dilation device for urological endoscopic surgery according to claim 1, characterized in that, The adjustment mechanism (9) includes a housing (901), one side of which is connected to several rigid pipes (902), and the other end of which is connected to a pipe joint (903). An electric push rod (904) is sealed and fixed through the side wall of the housing (901). The output shaft of the electric push rod (904) is located inside the housing (901) and is fixed with a latex plug (905).

5. The balloon dilation device for urological endoscopic surgery according to claim 1, characterized in that, The airbag (1) is provided with connecting sleeves (5) at both ends, and a sealing structure is formed between the connecting sleeves (5), the airbag (1) and the conduit (6).

6. The balloon dilation device for urological endoscopic surgery according to claim 1, characterized in that, The end of the catheter (6) is provided with a plug (7), and the plug (7) and the catheter (6) form a sealing structure; the inside of the catheter (6) is provided with a guide wire tube (10) and a drainage tube (11).

7. The balloon dilation device for urological endoscopic surgery according to claim 4, characterized in that, The rigid tube (902) is interconnected with the filling tube (8); the latex plug (905) corresponds one-to-one with the rigid tube (902), and when the electric push rod (904) reaches its maximum stroke, the latex plug (905) completely seals the end of the rigid tube (902).

8. The balloon dilation device for urological endoscopic surgery according to claim 2, characterized in that, Pressure detection units (12) are provided in several of the inner cavities (101), and the pressure detection units (12) are fixed on the first diaphragm (2).

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