Angle-adjustable abdominal cavity drug delivery device capable of collecting waste liquid

Abstract

The invention relates to an angle-adjustable abdominal cavity dosing device capable of collecting waste liquid. The device comprises a direction adjusting module, a liquid medicine atomizing module and a waste liquid collecting module. In the direction adjusting module, a universal knob is connected with a steel wire penetrating through a wire penetrating hole of the snake bone pipe through a direction changing block, and bending and steering of the snake bone pipe are achieved through cooperation of universal balls in a ball fixing groove in a handle. In the liquid medicine atomization module, a high-pressure injector connector receives liquid medicine, the liquid medicine is conveyed to a nozzle through a liquid medicine pipeline, and under the action of a spraying core, a spraying core spring and a fan-blade-shaped groove, the liquid medicine is sprayed out of an atomization medicine spraying opening to form fine mist. In the waste liquid collecting module, a suction button controls a button base to be communicated with a suction pipe connector, sealing performance is guaranteed through a suction spring and a sealing ring, a suction pipeline, a discharging pipeline and an aspirator connector are matched, and waste liquid in the abdominal cavity is discharged through a waste liquid collecting opening in a protective cap. The device can effectively improve drug atomization and absorption effects, is accurate in drug administration, reduces surgical wound and infection risks, and provides powerful support for abdominal tumor treatment.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to an angle-adjustable peritoneal drug delivery device capable of collecting waste liquid. Background Art

[0002] There is currently a lack of unified consensus guidelines for the treatment of cancer with peritoneal metastasis. Medical researchers have tried a variety of methods to control the progression of the disease, including transcatheter intraperitoneal chemotherapy, cytoreductive surgery, and hyperthermic intraperitoneal chemotherapy, but none of them has provided a satisfactory clinical result. Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a new minimally invasive surgical technique for treating intra-abdominal tumors. It aims to treat metastatic cancers in the peritoneal cavity, especially those that have spread to the peritoneal surface, such as the ovary, colon, and bladder. PIPAC introduces a pressurized system into the patient's abdominal cavity to spray aerosolized chemotherapy drugs on the tumor on the peritoneal surface to increase the therapeutic effect. With these minimally invasive surgeries, patients can end treatment after undergoing an operation that takes only about an hour. This repeatable treatment procedure needs to be performed regularly, generally as an adjuvant to systemic chemotherapy. Studies have shown that PIPAC can relieve the symptoms of peritoneal metastasis, such as pain, ascites, and obstructive symptoms, as well as reduce the side effects of chemotherapy, thus helping to improve the quality of life of patients.

[0003] However, during PIPAC treatment, the surgeon inserts a micro-pump into the patient's abdomen to inject pressurized aerosolized chemotherapy drugs into the peritoneal cavity. At the same time, the doctor will monitor the entire process through a laparoscope. However, the degree of drug aerosolization will affect the drug's penetration and thus affect the body's absorption of the drug. In addition, when the puncture site is not perpendicular to the lesion site (that is, there is a certain angle between the puncture site and the lesion site), it will also affect the absorption of the drug. When the treatment is completed, the exuded tissue fluid and the unabsorbed waste drugs need additional puncture holes to drain out of the abdominal cavity.

[0004] In summary, it is urgent to develop a new type of intraperitoneal drug delivery device that can overcome the above-mentioned problems, so as to improve the treatment effect and efficiency of abdominal diseases and promote the development of medical technology in this field. Summary of the invention

[0005] In view of this, the purpose of the present invention is to overcome the shortcomings of the existing related technologies. The present invention aims to provide an intraperitoneal drug delivery device with an adjustable angle and capable of collecting waste liquid, so as to effectively solve the key problems existing in the process of pressurized intraperitoneal atomization chemotherapy (PIPAC) and improve the cancer treatment effect and patient safety. The specific purposes are as follows:

[0006] Optimize the atomization effect of the drug solution to ensure that the drug solution can be fully atomized during intraperitoneal administration to form tiny and uniform particles, enhance drug penetration, and promote the body's efficient absorption of the drug, thereby improving the chemotherapy effect and providing stronger support for the patient's disease treatment.

[0007] Flexible adjustment of the drug delivery direction enables the device to adapt to the angle differences between the intraperitoneal puncture site and the lesion site of different patients, ensuring that chemotherapy drugs can be accurately sprayed on the tumor on the peritoneal surface, maximizing the effect of the drugs and improving the targetedness and effectiveness of the treatment.

[0008] It has an efficient waste fluid collection function. After the treatment is completed, it can conveniently and thoroughly extract the exuded tissue fluid and unabsorbed waste drugs from the abdominal cavity, avoiding additional punctures, reducing the number of surgical incisions for patients, reducing the risk of infection, and alleviating patients' pain. At the same time, it simplifies the surgical operation process and improves surgical efficiency.

[0009] In order to achieve the above-mentioned purpose, the present invention provides an intraperitoneal drug delivery device with adjustable angle and capable of collecting waste liquid, comprising a direction adjustment module, which can change the drug delivery direction to adapt to different intraperitoneal treatment needs and ensure that the drug can be accurately delivered to the lesion site;

[0010] Equipped with a drug liquid atomization module, it can efficiently convert drug liquid into fine mist, improve the dispersion and permeability of the drug, and enhance the therapeutic effect;

[0011] It is equipped with a waste liquid collection module to effectively collect and discharge waste liquid generated by intra-abdominal treatment to maintain the cleanliness and stability of the intra-abdominal environment.

[0012] Furthermore, the direction adjustment module includes: a universal knob, which is installed in a convenient position for operation, connected to the handle or the main structure, and can change the pulling direction of the steel wire by rotating the knob, and the knob cover is provided on the outside, and the inside is connected to the steel wire through a direction-changing block, and the direction-changing block is used to change the pulling direction of the steel wire;

[0013] The steel wire is connected to the universal knob at one end and passes through the threading hole in the snake tube at the other end. The steel wire passes through and is fixed in the threading holes of each section of the snake tube. The bending and turning of the snake tube is achieved by pulling the steel wire. The two ends of the steel wire are fixed by steel wire fixing balls. The steel wire fixing balls are welded at both ends of the steel wire to ensure the connection stability of the steel wire and the fixation after the length is adjusted.

[0014] The snake bone tube is composed of the head section, the middle section and the tail section connected in sequence, and the whole is a flexible structure that can be bent. The head section is located at the front end, close to the treatment site, and the tail section is connected to the main structure. The connection should be stable and not hinder the flexible rotation of the snake bone tube. The sections are tightly connected and the internal threading holes are connected;

[0015] The handle is provided with a ball fixing groove for installing a universal ball. The connection between the handle and the main structure should be convenient for the user to hold and operate the universal knob. The universal ball cooperates with the steel wire to assist the steel wire in changing the direction of tension when the universal knob is rotated.

[0016] Furthermore, the drug liquid atomization module includes:

[0017] The high-pressure injector interface is arranged on the main structure and is tightly connected to the high-pressure injector. The interface should have good sealing properties to prevent liquid medicine from leaking. The sealing gasket is used to further enhance the sealing effect of the interface.

[0018] The liquid medicine pipeline, which connects the high-pressure injector interface and the nozzle, is reasonably arranged inside the main structure to avoid bending or pressure, ensuring smooth transmission of the liquid medicine;

[0019] The nozzle has a nozzle core and a nozzle core spring inside. The nozzle core is closely matched with the nozzle under the action of the nozzle core spring. When the high-pressure liquid medicine is injected, the nozzle core moves under the pressure of the liquid medicine, so that the liquid medicine is accelerated in the gap between the nozzle core and the nozzle and forms a swirl cavity. The fan-shaped groove at the top of the nozzle core promotes the collision of the liquid medicine into atomization. The diameter of the atomization spray port of the nozzle is less than 0.2mm and is located at a suitable position of the protective cap to ensure the smooth spraying of the atomized liquid medicine. The nozzle and the liquid medicine pipeline are connected through a pipeline joint to ensure the stability of the connection and the smoothness of the liquid medicine transmission.

[0020] The protective cap is firmly connected to the main structure and covers the outside of the nozzle and related components. The atomizing spray port and the waste liquid collection port on the protective cap are reasonably arranged, corresponding to the nozzle and the waste liquid collection pipeline respectively, to ensure the normal entry and exit of the liquid medicine and waste liquid.

[0021] Further, the waste liquid collection module includes: a suction button, which is installed in a convenient position for operation, including being installed on a handle or a main structure, connected to a button seat, the button should be pressed and popped up smoothly, the button seat is connected to the suction button through a suction spring, the suction spring provides a reset function for the button, and a sealing ring is provided between the button seat and the suction tube interface to ensure the sealing of the connection and prevent waste liquid leakage; an aspirator interface, which is provided on the main structure, is reliably connected to the vacuum aspirator, and the interface is well sealed to ensure the stability of the suction negative pressure;

[0022] The suction pipeline, one end of which is connected to the button seat, is connected to the discharge pipeline through the suction pipe interface and is reasonably distributed in the main structure to avoid interference with other components and ensure smooth suction of waste liquid;

[0023] The discharge pipeline is connected to the suction device interface at one end and to the suction pipeline through the discharge pipe interface at the other end. The direction of the discharge pipeline in the main structure should be conducive to the discharge of waste liquid, and the discharge pipeline is tightly connected to the protective cap. The waste liquid collection port on the protective cap has multiple holes distributed on four sides. The position and size of the holes should ensure that the waste liquid is effectively collected and not easily blocked.

[0024] The present invention adopts the above technical solution, which has at least the following beneficial effects:

[0025] 1. Improve the effect of drug treatment: Through the unique drug liquid atomization module, the drug liquid can be converted into fine mist with a median particle size of 18±25% microns. Compared with traditional devices, the finer and more uniform droplets greatly increase the contact area between the drug and the tumor on the peritoneal surface, allowing the drug to penetrate into the diseased tissue more efficiently, significantly improving the absorption efficiency of the drug, thereby enhancing the chemotherapy effect, providing more powerful support for the treatment of patients with peritoneal endometrial metastasis, and is expected to improve the treatment prognosis of patients.

[0026] 2. Precise targeted drug delivery: The direction adjustment module is designed with ingenuity. With the help of the coordinated cooperation of the snake tube, steel wire and universal knob, the user can conveniently and accurately adjust the drug delivery direction according to the actual angle difference between the patient's intraperitoneal puncture position and the lesion position. This ensures that the chemotherapy drugs can be accurately sprayed on the tumor on the peritoneal surface, avoiding drug waste, maximizing the therapeutic effect of the drugs, improving the pertinence and effectiveness of the treatment, and helping to improve the patient's treatment success rate.

[0027] 3. Simplify surgical operations and reduce risks: The innovative design that integrates spray and waste liquid collection functions effectively reduces the number of punctures used during surgery. In traditional treatment, waste liquid drainage requires additional puncture operations, but this device avoids this cumbersome step, which not only reduces the risk of surgical wound infection caused by multiple punctures, relieves patients' pain, but also shortens the operation time, reduces the complexity of the operation, reduces medical costs, brings great convenience to medical staff's operation, and improves the overall safety and efficiency of the operation.

[0028] 4. Optimize the surgical environment and patient experience: The waste fluid collection module can timely and thoroughly discharge the exuded tissue fluid and unabsorbed waste drugs from the abdominal cavity, keeping the intra-abdominal environment clean and stable. This helps reduce the accumulation of fluid and pollutants in the abdominal cavity, reduces the probability of postoperative complications, and provides medical staff with a clearer surgical field of view, which is conducive to the smooth progress of the operation. From the patient's perspective, it reduces the discomfort caused by residual waste fluid, improves the patient's comfort and recovery speed during the operation, and promotes the patient's postoperative recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is one of the schematic diagrams of the structure of the intraperitoneal drug delivery device of the present invention;

[0031] Figure 2 It is a partial schematic diagram of the peritoneal drug delivery device of the present invention;

[0032] Figure 3 This is the second structural schematic diagram of the peritoneal drug delivery device of the present invention;

[0033] Figure 4 It is a top view of the detailed path of the steel wire of the direction adjustment module of the present invention;

[0034] Figure 5 This is a structural exploded view of the direction adjustment module of the present invention;

[0035] Figure 6 It is a schematic diagram of the structure of the steel wire fixed ball part of the present invention;

[0036] Figure 7 It is a schematic diagram of the structure of the present invention having a threading hole in the snake bone;

[0037] Figure 8 This is one of the schematic diagrams of the structure of the liquid medicine atomization module of the present invention;

[0038] Fig. 9 This is the second schematic diagram of the structure of the liquid medicine atomization module of the present invention;

[0039] Fig.10 This is the third schematic diagram of the structure of the liquid medicine atomization module of the present invention;

[0040] Fig.11 This is one of the schematic diagrams of the structure of the waste liquid collection module of the present invention;

[0041] Fig.12 This is the second schematic diagram of the structure of the waste liquid collection module of the present invention.

[0042] In the figure: 1. suction button; 11. button seat; 12. sealing ring; 13. suction spring; 14. suction tube interface; 15. suction pipeline; 16. discharge tube interface; 2. high-pressure syringe interface; 21. liquid medicine pipeline; 3. universal knob; 31. knob cover cap; 32. universal ball; 33. steel wire; 34. change-of-direction block; 4. handle; 41. ball fixing groove on the handle; 5. suction device interface; 51. discharge pipeline; 6. main body; 7. snake bone tube; 71. tail section of snake bone tube; 72. middle section of snake bone tube; 73. head section of snake bone tube; 74. wire threading hole in snake bone; 76. steel wire fixing ball; 8. protective cap; 81. sealing gasket; 82. nozzle; 83. spray core; 84. spray core spring; 85. pipeline joint; 86. fan-shaped groove; 87. atomization spray port; 88. waste liquid collection port. DETAILED DESCRIPTION

[0043] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0044] The present embodiment provides an intraperitoneal drug delivery device with an adjustable angle and capable of collecting waste liquid, including a direction adjustment module, which can change the drug delivery direction to adapt to different intraperitoneal treatment needs and ensure that the drug can be accurately delivered to the lesion site; a drug liquid atomization module is provided, which can efficiently convert the drug liquid into fine mist, improve the dispersion and permeability of the drug, and enhance the treatment effect; and a waste liquid collection module is provided, which is used to effectively collect and discharge the waste liquid generated by the intraperitoneal treatment to maintain the cleanliness and stability of the intra-abdominal environment.

[0045] like Figures 1 to 7 The direction adjustment module in this embodiment includes: a universal knob 3, which is installed in a convenient position for operation, connected to the handle 4 or the main structure 6, and can change the pulling direction of the steel wire 33 by rotating the knob cap 31 on the outside, and is connected to the steel wire 33 through a direction-changing block 34 on the inside, and the direction-changing block 34 is used to change the pulling direction of the steel wire 33;

[0046] The steel wire 33 has one end connected to the universal knob 3, and the other end passes through the threading hole 74 in the snake bone tube 7, and passes through and is fixed in the threading holes 74 of each section of the snake bone tube 7. The bending and turning of the snake bone tube 7 is achieved by pulling the steel wire 33. The two ends of the steel wire 33 are fixed by steel wire fixing balls 76, and the steel wire fixing balls 76 are welded to the two ends of the steel wire 33 to ensure the connection stability of the mechanism to which the steel wire 33 belongs and the fixation after the length is adjusted; the snake bone tube 7 is composed of a head section 73, a middle section 72 and a tail section 71 connected in sequence, and the whole is a bendable and flexible structure. The head section 73 is located at the front end, close to the treatment site, and the tail section 71 is connected to the main structure 6. The connection should be stable and not hinder the flexible rotation of the snake bone tube 7. The sections are tightly connected and the internal threading holes 74 are connected.

[0047] The handle 4 is provided with a ball fixing groove 41 for installing the universal ball 32. The connection between the handle 4 and the main structure 6 should be convenient for the user to hold and operate the universal knob 3. The universal ball 32 cooperates with the steel wire 33 to assist the steel wire 33 in changing the direction of the pulling force when the universal knob 3 is rotated.

[0048] like Figures 4 to 7 As shown, the working principle of the direction adjustment module is: one end of the steel wire 33 passes through the threading hole 74 fixed on the head section 73 of the snake bone tube, and passes through the threading holes of the middle section 72 of the snake bone tube and the tail section 71 of the snake bone tube, and passes through the corresponding hole of the redirection block 34 (upper matches the upper, lower matches the lower, left matches the left, and right matches the right). After coming out of the redirection block 34, it passes through the universal ball 32 in the opposite direction (upper and lower interchangeable, left and right interchangeable) and passes through the corresponding groove and passes through the opposite side hole of the entrance hole of the redirection block 34. Then pass through the threading hole of the snake bone tube on the same side. After adjusting the tightness of the steel wire, weld the steel wire fixing ball 76 to both ends of the steel wire. The steel wire in the vertical direction is also made in the same way. The universal ball 32 is fixed in the ball fixing groove 41 on the handle. Taking the case of pushing the universal knob 3 to the left as an example, the steel wire 33 on the right side of the universal ball 32 is pulled up, and the steel wire 33 on the left side is lowered; the two steel wires 33 are converted to the left steel wire 33 of the snake tube being pulled up and the right steel wire being lowered after passing through the direction-changing block 34, thereby realizing the leftward turning of the snake tube.

[0049] like Figures 8 to 10 As shown, as a preferred embodiment, the liquid medicine atomization module in this embodiment includes: a high-pressure syringe interface 2, which is arranged on the main structure 6 and is tightly connected to the high-pressure syringe. The interface should have good sealing properties to prevent liquid medicine from leaking. The sealing effect of the interface is further enhanced by a sealing gasket 81;

[0050] The liquid medicine pipeline 21 connects the high-pressure injector interface 2 and the nozzle 82 and is reasonably arranged inside the main structure 6 to avoid bending or pressure, thereby ensuring smooth transmission of the liquid medicine;

[0051] The nozzle 82 has a core 83 and a core spring 84 disposed therein. The core 83 is closely matched with the nozzle 82 under the action of the core spring 84. When the high-pressure liquid medicine is injected, the core 83 moves under the pressure of the liquid medicine, so that the liquid medicine is accelerated in the gap between the core 83 and the nozzle 82 to form a swirl chamber. The fan-shaped groove 86 at the top of the core 83 promotes the collision of the liquid medicine into atomization. The atomization spray port 87 of the nozzle 82 has a diameter of less than 0.2 mm and is located at a suitable position of the protective cap 8 to ensure smooth spraying of the atomized liquid medicine. The nozzle 82 is connected to the liquid medicine pipeline 21 through a pipeline joint 85 to ensure the stability of the connection and the smoothness of the liquid medicine transmission.

[0052] The protective cap 8 is firmly connected to the main structure 6 and covers the outside of the nozzle 82 and related components. The atomizing spray port 87 and the waste liquid collection port 88 on the protective cap 8 are reasonably arranged, corresponding to the nozzle 82 and the waste liquid collection pipeline respectively, to ensure the normal entry and exit of the liquid medicine and waste liquid.

[0053] like Figures 8 to 10 As shown, the liquid medicine is injected into the liquid medicine pipeline 21 from the high-pressure injector through the high-pressure injector interface 2, and then injected into the cavity formed by the nozzle 82 and the pipeline connector 85 through the pipeline connector 85. The cavity contains a spray core 83 and a spray core spring 84. In the absence of liquid medicine, the spray core 83 can support the atomizing spray port of the nozzle 82 under the pressure of the spray core spring 84 to prevent the liquid medicine from flowing out; when the high-pressure liquid medicine is injected, the liquid medicine passes through the gap between the spray core 83 and the nozzle 82 to accelerate the liquid medicine and turn it into extremely fine droplets. This process will cause the spray core 83 to obtain a reverse force and compress the spray core spring 84 to open the nozzle 82 to form a swirl cavity. When the accelerated liquid medicine passes through the three fan-shaped grooves at the top of the spray core 83, the liquid medicine collides more violently and the droplets formed are also finer. The diameter of the atomizing spray port 87 of the nozzle 82 is less than 0.2 mm, so that the fine droplets in the swirl cavity are accelerated again to rush out of the nozzle and combine with the external gas to form a spray.

[0054] like Fig.11 and Fig.12 As shown, as a preferred embodiment, the waste liquid collection module in this embodiment includes: a suction button 1, which is installed in a position convenient for operation, including being installed on the handle 4 or the main structure 6, connected to the button seat 11, the button pressing and popping up should be smooth, the button seat 11 and the suction button 1 are connected through a suction spring 13, the suction spring 13 provides a reset function for the button, and a sealing ring 12 is provided between the button seat 11 and the suction tube interface 14 to ensure the sealing of the connection and prevent leakage of waste liquid;

[0055] The suction device interface 5 is arranged on the main structure 6, and is reliably connected to the vacuum suction device. The interface is well sealed to ensure the stability of the suction negative pressure.

[0056] The suction pipeline 15, one end of which is connected to the button seat 11, is connected to the discharge pipeline 51 through the suction pipe interface 14, and is reasonably distributed in the main structure 6 to avoid interference with other parts, ensuring smooth suction of waste liquid;

[0057] The discharge pipeline 51 has one end connected to the suction device interface 5 and the other end connected to the suction pipeline 15 through the discharge pipe interface 14. The direction in the main structure 6 should be conducive to the discharge of waste liquid, and the discharge pipeline 51 is tightly connected to the protective cap 8. The waste liquid collection port 88 on the protective cap 8 has multiple holes distributed on four sides. The position and size of the holes should ensure that the waste liquid is effectively collected and not easily blocked.

[0058] like Fig.11 and Fig.12 As shown, the working principle of the waste liquid collection module is as follows: it is connected to the suction device through the suction device interface 5, and a negative pressure is formed in the discharge pipeline 51. The other end of the discharge pipeline 51 is connected to the discharge pipe interface 16, and the discharge pipe interface 16 is connected to the suction pipe interface 14. The suction pipe 15 and the discharge pipeline 51 cannot be connected without pressing the suction button 1. When the suction button 1 is pressed, the button seat 11 forms a passage inside the suction pipe interface 14 by compressing the suction spring 13, so that the suction pipe 15 is connected to the discharge pipeline 51. The discharge pipeline 51 is connected to the protective cap 8, so that the waste liquid in the abdominal cavity is discharged from the body. The waste liquid collection port on the protective cap 8 has a total of 7 holes distributed in four directions, which can effectively prevent malfunction caused by one hole being blocked.

[0059] The technical problems solved by the intraperitoneal drug delivery device provided in this embodiment are: 1. When the drug is delivered by intraperitoneal pressurized atomization, the drug solution can be fully atomized and absorbed by the human body. 2. The drug delivery device that enters the peritoneal cavity through the puncture device can adjust the spraying angle. 3. After the treatment is completed, the exuded tissue fluid and the unabsorbed waste drugs can be pumped out of the peritoneal cavity.

[0060] 1. This embodiment connects the atomizer to a high-pressure syringe, and uses pressure to press the liquid from a thick pipe into a thin pipe to create a high-speed water flow. The high-speed water flow breaks into small water droplets after hitting an obstacle, and then passes through an extremely fine liquid outlet to convert the liquid into fine mist, which is sprayed out from the dispenser and directly acts on the lesion, achieving a good therapeutic effect.

[0061] 2. Pass the snake tube at the front end of the applicator and fix the direction adjustment wire to the universal knob at the handle position to achieve controllable direction of the front end.

[0062] 3. A special waste liquid collection pipeline is set at the front end and connected to the vacuum suction device through the special interface of the main body and the handle to realize the function of collecting waste liquid.

[0063] Although the embodiments of the present invention have been shown and described above, it will be appreciated that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, substitute and vary the above embodiments within the scope of the present invention.

Claims

1. An adjustable angle intraperitoneal drug delivery device capable of collecting waste liquid, characterized in that: include Direction adjustment module, which can change the drug delivery direction to meet different intraperitoneal treatment needs and ensure that the drug can be accurately delivered to the lesion site; Equipped with a drug liquid atomization module, it can efficiently convert drug liquid into fine mist, improve the dispersion and permeability of the drug, and enhance the therapeutic effect; It is equipped with a waste liquid collection module to effectively collect and discharge waste liquid generated by intra-abdominal treatment to maintain the cleanliness and stability of the intra-abdominal environment.

2. The angle-adjustable intraperitoneal drug delivery device capable of collecting waste liquid according to claim 1, characterized in that: The direction adjustment module comprises: A universal knob (3) is installed at a convenient position for operation, connected to the handle (4) or the main structure, and can change the pulling direction of the steel wire (33) by rotating the knob. The knob is provided with a knob cap (31) on the outside, and is connected to the steel wire (33) via a direction-changing block (34) on the inside. The direction-changing block (34) is used to change the pulling direction of the steel wire (33); The steel wire (33) has one end connected to the universal knob (3) and the other end passing through the threading hole (74) in the snake tube (7), and passing through and being fixed in the threading hole (74) of each section of the snake tube (7). The bending and turning of the snake tube (7) is achieved by pulling the steel wire (33). The two ends of the steel wire (33) are fixed by steel wire fixing balls (76). The steel wire fixing balls (76) are welded to the two ends of the steel wire (33) to ensure the connection stability of the steel wire (33) and the fixation after the length adjustment. The snake bone tube (7) is composed of a head section (73), a middle section (72) and a tail section (71) connected in sequence, and the whole is a bendable and flexible structure. The head section (73) is located at the front end, close to the treatment site, and the tail section (71) is connected to the main structure. The connection should be stable and not hinder the flexible rotation of the snake bone tube (7). The sections are tightly connected and the internal threading holes (74) are connected. The handle (4) is provided with a ball fixing groove (41) for mounting a universal ball (32). The connection between the handle (4) and the main structure should be convenient for a user to hold and operate the universal knob (3). The universal ball (32) cooperates with the steel wire (33) to assist the steel wire (33) in changing the direction of the pulling force when the universal knob (3) is rotated.

3. The angle-adjustable intraperitoneal drug delivery device capable of collecting waste liquid according to claim 1, characterized in that: The liquid medicine atomization module comprises: A high-pressure injector interface (2) is arranged on the main structure and is tightly connected to the high-pressure injector. The interface should have good sealing properties to prevent leakage of liquid medicine. The sealing effect of the interface is further enhanced by a sealing gasket (81); A liquid medicine pipeline (21) is connected to the high-pressure injector interface (2) and the nozzle (82), and is reasonably arranged inside the main structure to avoid bending or pressure, thereby ensuring smooth transmission of the liquid medicine; The nozzle (82) has a core (83) and a core spring (84) arranged therein. The core (83) is closely matched with the nozzle (82) under the action of the core spring (84). When a high-pressure liquid medicine is injected, the core (83) moves under the pressure of the liquid medicine, so that the liquid medicine is accelerated in the gap between the core (83) and the nozzle (82) to form a swirl chamber. The fan-shaped groove (86) at the top of the core (83) promotes the liquid medicine to collide and atomize. The atomizing spray port (87) of the nozzle (82) has a diameter of less than 0.2 mm and is located at a suitable position of the protective cap (8) to ensure smooth spraying of the atomized liquid medicine. The nozzle (82) is connected to the liquid medicine pipeline (21) through a pipeline joint (85) to ensure the stability of the connection and the smoothness of liquid medicine transmission. The protective cap (8) is firmly connected to the main structure and covers the outside of the nozzle (82) and related components. The atomizing spray port (87) and the waste liquid collection port (88) on the protective cap (8) are reasonably arranged and correspond to the nozzle (82) and the waste liquid collection pipeline respectively, so as to ensure the normal entry and exit of the liquid medicine and the waste liquid.

4. The angle-adjustable intraperitoneal drug delivery device capable of collecting waste liquid according to claim 1, characterized in that: The waste liquid collection module comprises: The suction button (1) is installed in a convenient position for operation, including being installed on a handle (4) or a main structure, and connected to a button seat (11). The button should be pressed and popped up smoothly. The button seat (11) and the suction button (1) are connected via a suction spring (13). The suction spring (13) provides a reset function for the button. A sealing ring (12) is provided between the button seat (11) and the suction tube interface (14) to ensure the sealing of the connection and prevent leakage of waste liquid. The suction device interface (5) is arranged on the main structure and is reliably connected to the vacuum suction device. The interface is well sealed to ensure the stability of the suction negative pressure. The suction pipeline (15) has one end connected to the button seat (11), is connected to the discharge pipeline (51) through the suction pipe interface (14), and is reasonably distributed in the main structure to avoid interference with other components, thereby ensuring smooth suction of waste liquid; The discharge pipeline (51) has one end connected to the suction device interface (5) and the other end connected to the suction pipeline (15) through the discharge pipe interface (14). The direction of the discharge pipeline (51) in the main structure should be conducive to the discharge of waste liquid, and the discharge pipeline (51) is tightly connected to the protective cap (8). The waste liquid collection port (88) on the protective cap (8) has multiple holes distributed in four directions. The position and size of the holes should ensure that the waste liquid is effectively collected and not easily blocked.

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