Hyperthermal perfusion chemotherapy device

Abstract

The utility model provides a hyperthermic perfusion chemotherapy device. The hyperthermic perfusion chemotherapy device comprises a perfusion assembly, an opening assembly and a drainage assembly, wherein the opening assembly is used for generating an imbedding opening in a target body cavity; the drainage assembly is used for guiding the perfusion assembly to be communicated with the generated imbedding opening after being connected with the perfusion assembly; the filling assembly comprises a liquid storage tank, a driving pump, a heating piece, a main pipeline, a first pipe group, a second pipe group and a third pipe group; the outlet end and the inlet end of the main pipeline are communicated with the liquid storage tank; the first pipe set, the second pipe set, the third pipe set and the liquid storage tank are sequentially connected and communicated to the main pipeline, and the drainage assembly is detachably connected with the end, away from the main pipeline, of the second pipe set. The perfusion assembly is communicated with a target body cavity through the drainage assembly and the opening assembly, and large trauma and high risk of a traditional laparotomy are avoided; the driving pump and the heating piece on the main pipeline can ensure that the treatment liquid quickly reaches the required temperature and is continuously and stably injected into the target body cavity, the effective treatment temperature is kept, and the thermal curative effect rate is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a thermo-perfusion chemotherapy device. Background Art

[0002] Tumor thermotherapy technology is a method for treating tumors by utilizing the difference in temperature tolerance between cancer cells and normal somatic cells. By heating the treatment fluid and injecting it into the body cavity of a patient, and maintaining a certain treatment temperature for circulation, the purpose of inhibiting tumor growth can be achieved. At present, there are some limitations in the existing intraperitoneal thermo-perfusion chemotherapy technology, such as large trauma and high risk in the catheterization of open surgery, which cause greater harm to patients and are not conducive to postoperative recovery. Therefore, it is particularly important to develop a minimally invasive system for circulating perfusion. Summary of the Utility Model

[0003] The utility model aims at the technical problems of large trauma and high risk in the catheterization of thermo-perfusion chemotherapy and low thermotherapy efficiency in the prior art, and provides a thermo-perfusion chemotherapy device.

[0004] In view of the above technical problems, an embodiment of the utility model provides a thermo-perfusion chemotherapy device, which includes a perfusion assembly, an opening assembly for generating an insertion port on a target body cavity, and a drainage assembly for guiding the perfusion assembly to communicate with the generated insertion port after being connected to the perfusion assembly;

[0005] The perfusion assembly includes a liquid storage tank, a driving pump, a heating element, a main pipeline, a first pipe group, a second pipe group and a third pipe group; the outlet end and the inlet end of the main pipeline are both communicated with the liquid storage tank; the first pipe group, the second pipe group, the third pipe group and the liquid storage tank are sequentially connected and communicated on the main pipeline, and the first pipe group is located between the outlet end of the main pipeline and the second pipe group; the heating element and the driving pump are installed on the main pipeline and are located between the first pipe group and the second pipe group, and the third pipe group is located between the inlet end of the main pipeline and the second pipe group; the drainage assembly is detachably connected to one end of the second pipe group away from the main pipeline.

[0006] Optionally, the main pipeline includes a first delivery pipe, a second delivery pipe, a third delivery pipe and a fourth delivery pipe, and the thermo-perfusion chemotherapy device further includes a first three-way temperature measuring valve and a second three-way temperature measuring valve for temperature measurement;

[0007] The three interfaces of the first three-way temperature measuring valve are respectively communicated with the first delivery pipe, the second delivery pipe and the third delivery pipe, and the three interfaces of the second three-way temperature measuring valve are respectively communicated with one end of the third delivery pipe away from the first three-way temperature measuring valve, the third pipe group and the fourth delivery pipe;

[0008] The driving pump and the heating element are installed on the first delivery pipe and are located between the first pipe group and the first three-way temperature measuring valve.

[0009] Optionally, the opening assembly includes a puncture needle for puncturing a target body to form an insertion port, a guide wire for guiding the puncture needle to extend into the insertion port through the insertion port, and a dilatation tube for sleeving on the guide wire after the puncture needle is removed from the insertion port to enter the insertion port under the guidance of the guide wire and dilate it.

[0010] Optionally, the opening assembly further includes a needle holder, and the puncture needle is detachably installed on the needle holder.

[0011] Optionally, the guide wire includes a guiding straight portion, a bent portion connecting the guiding straight portion, and a wear-resistant coating covering the outer surfaces of the guiding straight portion and the bent portion.

[0012] Optionally, the drainage assembly includes a drainage tube and an extension tube. The drainage tube includes a front-end tube body for communicating with the insertion port under the guidance of the guide wire and a rear-end tube body;

[0013] The extension tube includes a tube body, a conical locking joint provided at the first end of the tube body, a first liquid stop clamp provided on the tube body, and a trumpet joint provided at the second end of the tube body. The rear-end tube body is detachably connected to the conical locking joint; the trumpet joint is detachably connected to the second tube group.

[0014] Optionally, the drainage tube further includes a flushing tube communicating between the front-end tube body and the rear-end tube body; a second liquid stop clamp is provided on the rear-end tube body.

[0015] Optionally, the hyperthermic perfusion chemotherapy device further includes an injection member provided on the first delivery pipe for injecting drugs.

[0016] Optionally, the heating element includes a heating reaction tank, a second inlet pipe communicating between the inlet end of the main pipeline and the heating reaction tank, a second outlet pipe communicating between the outlet end of the main pipeline and the heating reaction tank, and an overflow pipe communicating with the bottom of the heating reaction tank.

[0017] Optionally, the liquid storage tank includes a tank body having a liquid storage space, a filter screen provided in the liquid storage space, and an exhaust pipe connecting the liquid storage space; an exhaust valve for controlling the on / off of the exhaust pipe is provided on the exhaust pipe.

[0018] In the present utility model, the thermo-perfusion chemotherapy device includes a perfusion assembly, an opening assembly for generating an insertion port on a target body cavity, and a drainage assembly for guiding the perfusion assembly to communicate with the generated insertion port after being connected to the perfusion assembly; the perfusion assembly includes a liquid storage tank, a driving pump, a heating element, a main pipeline, a first pipe group, a second pipe group, and a third pipe group; the outlet end and the inlet end of the main pipeline are both communicated with the liquid storage tank; the first pipe group, the second pipe group, the third pipe group, and the liquid storage tank are sequentially connected and communicated on the main pipeline, and the first pipe group is located between the outlet end of the main pipeline and the second pipe group; the heating element and the driving pump are installed on the main pipeline and located between the first pipe group and the second pipe group, and the third pipe group is located between the inlet end of the main pipeline and the second pipe group; the drainage assembly is detachably connected to one end of the second pipe group away from the main pipeline.

[0019] In the present utility model, since the opening assembly can generate a minimally invasive insertion port on the target body cavity, the perfusion assembly is communicated with the drainage assembly, and the perfusion assembly is communicated with the target body cavity through the drainage assembly and under the guidance of the opening assembly, avoiding the large trauma and high risk of traditional laparotomy; the driving pump and the heating element are arranged on the main pipeline in the perfusion assembly, which can ensure that the treatment liquid reaches the required treatment temperature in a short time, improve the efficiency of hyperthermia, and the heated treatment liquid can be continuously and stably injected into the target body cavity and maintain an effective treatment temperature; the drainage assembly is detachably connected to one end of the second pipe group away from the main pipeline, which is convenient for replacement and maintenance and reduces the risk of infection; the settings of the first pipe group, the second pipe group, and the third pipe group enable the thermo-perfusion chemotherapy device to achieve seamless switching between different working states, facilitating flexible adjustment of the required state according to the specific condition and treatment needs of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present utility model will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 is a schematic structural diagram of a perfusion assembly provided by an embodiment of the present utility model;

[0022] Figure 2 is a schematic structural diagram of a puncture needle of an opening assembly provided by an embodiment of the present utility model;

[0023] Figure 3 is a schematic structural diagram of a guide wire of an opening assembly provided by an embodiment of the present utility model;

[0024] Figure 4 is a schematic structural diagram of a drainage tube of a drainage assembly provided by an embodiment of the present utility model;

[0025] Figure 5It is a schematic structural diagram of an extension tube of a drainage assembly provided by an embodiment of the present utility model;

[0026] Figure 6 It is a schematic structural diagram of a heating element of an infusion assembly provided by an embodiment of the present utility model.

[0027] The reference numerals in the specification are as follows:

[0028] 1 - Infusion assembly, 11 - Liquid storage tank, 111 - Tank body, 112 - Exhaust valve, 12 - Driving pump, 13 - Heating element, 131 - Heating reaction tank, 132 - Second liquid inlet pipe, 133 - Second liquid outlet pipe, 134 - Overflow pipe, 14 - Main pipeline, 141 - First delivery pipe, 142 - Second delivery pipe, 143 - Third delivery pipe, 144 - Fourth delivery pipe, 15 - First pipe group, 16 - Second pipe group, 17 - Third pipe group, 2 - Opening assembly, 21 - Puncture needle, 22 - Guide wire, 221 - Guiding straight part, 222 - Bent part, 3 - Drainage assembly, 31 - Drainage pipe, 311 - Front end pipe body, 312 - Rear end pipe body, 313 - Flushing pipe, 314 - Second liquid stop clamp, 32 - Extension tube, 321 - Tube body, 322 - Cone locking joint, 323 - Horn joint, 324 - First liquid stop clamp, 4 - First three - way temperature measuring valve, 5 - Second three - way temperature measuring valve, 6 - Injection part. Detailed implementation manners

[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] As Figure 1 shown, an embodiment of the present utility model provides a thermo-perfusion chemotherapy device, including a perfusion assembly 1, an opening assembly 2 for generating an insertion port on a target body cavity, and a drainage assembly 3 for guiding the perfusion assembly 1 to communicate with the generated insertion port after being connected to the perfusion assembly 1.

[0033] The perfusion assembly 1 includes a liquid storage tank 11, a driving pump 12, a heating element 13, a main pipeline 14, a first pipe group 15, a second pipe group 16, and a third pipe group 17. The outlet end and the inlet end of the main pipeline 14 are both communicated with the liquid storage tank 11. The first pipe group 15, the second pipe group 16, the third pipe group 17, and the liquid storage tank 11 are sequentially connected and communicated on the main pipeline 14, and the first pipe group 15 is located between the outlet end of the main pipeline 14 and the second pipe group 16. The heating element 13 and the driving pump 12 are installed on the main pipeline 14 and are located between the first pipe group 15 and the second pipe group 16. The third pipe group 17 is located between the inlet end of the main pipeline 14 and the second pipe group 16. The drainage assembly 3 is detachably connected to one end of the second pipe group 16 away from the main pipeline 14. Among them, the first pipe group 15 in the perfusion assembly 1 is communicated with an external liquid injection device. The treatment liquid in the external liquid injection device is heated to a suitable temperature by the heating element 13 through the first pipe group 15, and then enters the liquid storage tank 11 through the inlet end of the main pipeline 14. Before the treatment liquid in the liquid storage tank 11 flows to the second pipe group 16 through the outlet end of the main pipeline 14, the opening assembly 2 generates a minimally invasive insertion port on the target body cavity (patient's body cavity) for the second pipe group 16 to insert. The second pipe group 16 is communicated with the insertion port through the drainage assembly 3. At this time, the treatment liquid in the liquid storage tank 11 is guided into the target body cavity through the second pipe group 16, the drainage assembly 3, and the insertion port, so as to perform thermo-perfusion treatment on the patient. The treatment liquid stored in the target body cavity after treatment is input into the liquid storage tank 11 through the third pipe group 17.

[0034] Specifically, when the perfusion assembly 1 is in the liquid injection state, the therapeutic liquid in the external liquid injection device is input into the liquid storage tank 11 through the main pipeline 14 and the driving pump 12; when the perfusion assembly 1 is in the internal circulation state, the therapeutic liquid in the liquid storage tank 11 is input into the liquid storage tank 11 from the outlet end of the main pipeline 14 through the driving pump 12 and the heating element 13 in sequence; when the perfusion assembly 1 is in the treatment state, the therapeutic liquid in the liquid storage tank 11 is input into the second tube group 16 from the outlet end of the main pipeline 14 through the driving pump 12 and the heating element 13 in sequence, and then the therapeutic liquid enters the target body cavity through the second tube group 16 and the drainage assembly 3; the therapeutic liquid at the outlet end is input into the liquid storage tank 11 through the third tube group 17.

[0035] In the above embodiment of the present utility model, since the opening assembly 2 can generate a minimally invasive placement port on the target body cavity, the perfusion assembly 1 is communicated with the drainage assembly 3, and the perfusion assembly 1 is communicated with the target body cavity through the drainage assembly 3 and under the guidance of the opening assembly 2, avoiding the large trauma and high risk of traditional open abdominal surgery; the driving pump 12 and the heating element 13 are arranged on the main pipeline 14 in the perfusion assembly 1, which can ensure that the therapeutic liquid reaches the required treatment temperature in a short time, improve the hyperthermia efficiency, and the heated therapeutic liquid can be continuously and stably injected into the target body cavity and maintain an effective treatment temperature; the drainage assembly 3 is detachably connected to one end of the second tube group 16 far from the main pipeline 14, which is convenient for replacement and maintenance and reduces the infection risk; the setting of the first tube group 15, the second tube group 16 and the third tube group 17 enables the hyperthermia perfusion chemotherapy device to realize seamless switching of different working states, and is convenient for flexible adjustment of the required state according to the specific condition and treatment needs of the patient.

[0036] In one embodiment, as Figure 1 shown, the main pipeline 14 includes a first delivery pipe 141, a second delivery pipe 142, a third delivery pipe 143 and a fourth delivery pipe 144, and the hyperthermia perfusion chemotherapy device further includes a first three-way temperature measuring valve 4 and a second three-way temperature measuring valve 5 for temperature measurement;

[0037] The three interfaces of the first three-way temperature measuring valve 4 are respectively communicated with the first delivery pipe 141, the second delivery pipe 142 and the third delivery pipe 143, and the three interfaces of the second three-way temperature measuring valve 5 are respectively communicated with one end of the third delivery pipe 143 far from the first three-way temperature measuring valve 4, the third tube group 17 and the fourth delivery pipe 144;

[0038] The driving pump 12 and the heating element 13 are installed on the first delivery pipe 141 and located between the first tube group 15 and the first three-way temperature measuring valve 4.

[0039] Understandably, the main pipeline 14 is composed of a first delivery pipe 141, a second delivery pipe 142, a third delivery pipe 143, and a fourth delivery pipe 144. The driving pump 12 and the heating element 13 are installed on the first delivery pipe 141, and the driving pump 12 and the heating element 13 are located between the first pipe group 15 and the first three-way temperature measuring valve 4, ensuring the flow rate and heating effect of the treatment fluid before it enters the second pipe group 16; both the first three-way temperature measuring valve 4 and the second three-way temperature measuring valve 5 are provided with three connection interfaces and have a three-way connection function, enabling the treatment fluid to flow and switch between different connected pipes, facilitating flexible configuration according to treatment requirements; moreover, it can also detect the temperature of the liquid in the pipes in three directions connected to it, achieving multi-point temperature monitoring and control, enabling timely detection and handling of temperature anomalies, and ensuring the safety of the treatment process.

[0040] Further, both the first three-way temperature measuring valve 4 and the second three-way temperature measuring valve 5 include a temperature sensor and an isolation membrane for isolating the temperature sensor from the internal liquid (perfusion liquid) of the pipeline it communicates with. When the internal liquid of the pipeline communicating with it flows through the first three-way temperature measuring valve 4 or the second three-way temperature measuring valve 5, the temperature of the liquid is transmitted to the temperature sensor in a heat conduction manner through the isolation membrane. After the temperature sensor senses the temperature, it converts it into an electrical signal and outputs it to the control system of the device. The control system adjusts the working state of the heating element 13 according to the reading of the temperature sensor to maintain the internal liquid of the pipeline within the set temperature range. The presence of the isolation membrane can effectively prevent the perfusion liquid from directly contacting the temperature sensor, thereby protecting the temperature sensor from damage and avoiding cross-infection between the perfusion liquid and the temperature sensor.

[0041] Specifically, when the perfusion assembly 1 is in the liquid injection state, the treatment fluid in the external liquid injection device sequentially enters the liquid storage tank 11 through the first delivery pipe 141, the driving pump 12, the third delivery pipe 143, and the fourth delivery pipe 144.

[0042] When the perfusion assembly 1 is in the internal circulation state, the treatment fluid in the liquid storage tank 11 is input into the liquid storage tank 11 from the outlet end of the main pipeline 14 sequentially through the first delivery pipe 141, the driving pump 12, the heating element 13, the third delivery pipe 143, and the fourth delivery pipe 144.

[0043] When the perfusion assembly 1 is in the treatment state, the treatment fluid in the liquid storage tank 11 is input into the second pipe group 16 from the outlet end of the main pipeline 14 sequentially through the first delivery pipe 141, the driving pump 12, the heating element 13, and the second delivery pipe 142. The treatment fluid then enters the target body cavity through the second pipe group 16 and the drainage assembly 3; the treatment fluid at the outlet end is input into the liquid storage tank 11 through the fourth delivery pipe 144.

[0044] In another embodiment, a first control pipe clamp (not shown in the figure) for controlling the on / off of the liquid is provided on the first pipe group 15, a second control pipe clamp (not shown in the figure) for controlling the on / off of the liquid is provided at a position close to the outlet end of the main pipeline 14 on the first conveying pipe 141, a third control pipe clamp (not shown in the figure) for controlling the on / off of the liquid is provided at a position close to the first three-way temperature measuring valve 4 on the first conveying pipe 141, a fourth control pipe clamp (not shown in the figure) for controlling the on / off of the liquid is provided on the third conveying pipe 143, and a fifth control pipe clamp (not shown in the figure) for controlling the on / off of the liquid is provided on the second pipe group 16.

[0045] In one embodiment, as Figure 2 and Figure 3 shown, the opening assembly 2 includes a puncture needle 21 for puncturing a placement opening on a target body, a guide wire 22 for guiding the puncture needle 21 inserted into the placement opening to extend into the placement opening, and a dilator for sleeving on the guide wire 22 after the puncture needle 21 is removed from the placement opening, and entering the placement opening under the guidance of the guide wire 22 to expand it. Understandably, the puncture needle 21 is used to quickly and accurately puncture a placement opening on the target body cavity, reducing the operation time and the pain of the patient. The puncture needle 21 can adopt a slender needle body, which can ensure the puncture operation is completed with minimal trauma and is beneficial to postoperative recovery; the guide wire 22 is used to penetrate into the puncture needle 21 inserted into the placement opening and guide the puncture needle 21 to continue to extend into the placement opening to ensure that the puncture needle 21 accurately reaches the target position. The guide wire 22 remains in the placement opening after the puncture needle 21 is removed, providing a stable channel for subsequent operations. After the puncture needle 21 is removed, the dilator is sleeved on the guide wire 22, enters the placement opening along the guide wire 22 and expands the placement opening, so that the placement opening can accommodate larger devices or pipelines (drainage assembly 3). The dilator can reduce the damage to the surrounding tissues while expanding the placement opening.

[0046] In one embodiment, the opening assembly 2 further includes a needle holder (not shown in the figure), and the puncture needle 21 is detachably mounted on the needle holder. Understandably, the needle holder can be set according to the requirements and usage scenarios of the puncture needle 21 to ensure the usage effect and safety. The needle holder includes a straight needle holder and a Y-shaped needle holder. The Y-shaped needle holder includes a straight connector and a lateral connector, which is suitable for complex operations that require one or more side paths to be branched from the main puncture path. The puncture needle 21 is detachably mounted on the needle holder, so that the puncture needle 21 can be quickly replaced, facilitating the selection of a suitable puncture needle 21 according to different treatment requirements, and also facilitating the disinfection and replacement of the puncture needle 21, reducing the risk of cross-infection.

[0047] In one embodiment, as Figure 3As shown, the guide wire 22 includes a guiding straight portion 221, a bending portion 222 connecting the guiding straight portion 221, and a wear-resistant coating covering the outer surfaces of the guiding straight portion 221 and the bending portion 222. Understandably, the guiding straight portion 221 of the guide wire 22 can directly guide the expansion tube or the drainage tube 31 into the part in the body that needs to be reached. When the guide wire 22 needs to be accurately positioned at a specific position, the bending portion 222 of the guide wire 22 can, through its shape and angle, help the guide wire 22 to be fixed at a specific position in the body and prevent it from moving or slipping. The wear-resistant coating covers the outer surface of the guide wire 22, which can reduce the friction between the guide wire 22 and other tissues in the body, and at the same time can also improve the durability and anti-damage property of the guide wire 22.

[0048] In one embodiment, as Figure 4 and Figure 5 shown, the drainage assembly 3 includes a drainage tube 31 and an extension tube 32. The drainage tube 31 includes a front-end tube body 311 for communicating with the placement port under the guidance of the guide wire 22 and a rear-end tube body 312;

[0049] The extension tube 32 includes a tube body 321, a conical locking joint 322 provided at the first end of the tube body 321, a first liquid stop clip 324 provided on the tube body 321, and a horn joint 323 provided at the second end of the tube body 321. The rear-end tube body 312 is detachably connected to the conical locking joint 322; the horn joint 323 is detachably connected to the second tube set 16. Understandably, the connection between the drainage tube 31 and the extension tube 32 is realized by the detachable connection between the rear-end tube body 312 and the conical locking joint 322, and the detachable connection between the second tube set 16 and the horn joint 323 realizes the connection between the second tube set 16 and the extension tube 32. The front-end tube body 311 of the drainage tube 31 communicates with the placement port under the guidance of the guide wire 22 to ensure that the treatment liquid smoothly enters the drainage tube 31; the first liquid stop clip 324 is used to control the flow rate of the treatment liquid and the on-off of the liquid to prevent backflow or leakage.

[0050] In one embodiment, as Figure 4As shown, the drainage tube 31 further includes a flushing tube 313, and the flushing tube 313 is connected between the front-end tube body 311 and the rear-end tube body 312; a second liquid stop clip 314 is provided on the rear-end tube body 312. Understandably, the drainage tube 31 can be of a straight structure and a Y-shaped structure. When the drainage tube 31 is of a Y-shaped structure, the drainage tube 31 includes a front-end tube body 311, a rear-end tube body 312, and a flushing tube 313 arranged at an angle with the rear-end tube body 312. During the drainage process, flushing the drainage tube 31 can remove blood clots, impurities or drug residues in the tube to prevent the drainage tube 31 from being blocked and ensure the smooth flow of the treatment fluid. Further, a fixing wing (not shown in the figure) is also provided on the drainage tube, and the installation position of the fixing wing can be selected according to the specific conditions of the patient and the surgical requirements. It can be provided on the front-end tube body 311, on the rear-end tube body 312 or at the tee joint. The fixing wing can add an auxiliary fixing function to the drainage tube 31, and by increasing the contact area and stability between the drainage tube 31 and the skin, reduce the risk of the drainage tube 31 falling off or shifting.

[0051] Specifically, the connection between the front-end tube body 311 of the drainage tube 31 and the placement port needs to be completed with the cooperation of the opening assembly 2: First, the puncture needle 21 punctures at the target position to form a placement port, and a guide wire 22 is inserted into the puncture needle 21 to guide the puncture needle 21 to be inserted into a suitable position; then, the puncture needle 21 is withdrawn, leaving the guide wire 22, and a dilator is sleeved on the guide wire 22 to expand the placement port, and the dilator is withdrawn, still leaving the guide wire 22; finally, the drainage tube 31 is sleeved on the guide wire 22, the drainage tube 31 is inserted into a suitable position, the guide wire 22 is withdrawn, and the drainage tube 31 is fixed.

[0052] In one embodiment, as Figure 1 shown, the hyperthermic perfusion chemotherapy device further includes an injection member 6 provided on the first delivery tube 141 and used for injecting drugs. Understandably, the injection member 6 is provided on the first delivery tube 141 and between the first tee temperature measuring valve 4 and the heating member 13. The injection member 6 can be used for injecting various drugs to adapt to different treatment plans and patient needs.

[0053] In one embodiment, as Figure 1 and Figure 6As shown, the heating member 13 includes a heating reaction tank 131, a second liquid inlet pipe 132 connected between the inlet end of the main pipeline 14 and the heating reaction tank 131, a second liquid outlet pipe 133 connected between the outlet end of the main pipeline 14 and the heating reaction tank 131, and an overflow pipe 134 connected to the bottom of the heating reaction tank 131. Understandably, the second liquid inlet pipe 132 is connected between the heating reaction tank 131 and the inlet end of the main pipeline 14, and is used to lead the treatment liquid out of the heating reaction tank 131 to flow to the first delivery pipe 141 and then to the second pipe group 16; the second liquid outlet pipe 133 is connected between the heating reaction tank 131 and the outlet end of the main pipeline 14, and is used to introduce the treatment liquid from the main pipeline 14 into the heating reaction tank 131. The overflow pipe 134 is connected to the bottom of the heating reaction tank 131 and is used to prevent the liquid in the heating reaction tank 131 from being too full or overflowing. Further, a safety valve can be provided on the overflow pipe 134 to automatically discharge the excess liquid in time when the liquid is too full, so as to improve the safety performance of the device.

[0054] In one embodiment, as Figure 1 shown, the liquid storage tank 11 includes a tank body 111 having a liquid storage space, a filter screen disposed in the liquid storage space, and an exhaust pipe connected to the liquid storage space; an exhaust valve 112 for controlling the on-off of the exhaust pipe is provided on the exhaust pipe. Understandably, the filter screen is disposed in the liquid storage space of the tank body 111 and is used to filter impurities and particulate matters in the treatment liquid to prevent these impurities from entering the subsequent heating and perfusion pipelines and avoid pipeline blockage. The exhaust pipe is connected to the liquid storage space and is used to discharge the gas in the liquid storage tank 11 to prevent the pressure from rising due to gas accumulation, so as to maintain the pressure balance in the liquid storage tank 11 and ensure the smooth flow of the treatment liquid; the exhaust valve 112 is provided on the exhaust pipe and can control the on-off of the exhaust pipe. By adjusting the gas discharge in the liquid storage space, it is ensured that the pressure in the liquid storage tank 11 always remains balanced.

[0055] The above are only embodiments of the thermo-perfusion chemotherapy device of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A thermo-perfusion chemotherapy device, characterized in that, It includes an infusion assembly, an opening assembly for generating an insertion port on a target body cavity, and a drainage assembly for guiding the infusion assembly to communicate with the generated insertion port after being connected to the infusion assembly; The infusion assembly includes a liquid storage tank, a driving pump, a heating element, a main pipeline, a first pipe group, a second pipe group, and a third pipe group; the outlet end and the inlet end of the main pipeline are both communicated with the liquid storage tank; the first pipe group, the second pipe group, the third pipe group, and the liquid storage tank are sequentially connected and communicated on the main pipeline, and the first pipe group is located between the outlet end of the main pipeline and the second pipe group; the heating element and the driving pump are installed on the main pipeline and located between the first pipe group and the second pipe group, and the third pipe group is located between the inlet end of the main pipeline and the second pipe group; the drainage assembly is detachably connected to one end of the second pipe group away from the main pipeline.

2. The thermo-perfusion chemotherapy device according to claim 1, wherein The main pipeline includes a first delivery pipe, a second delivery pipe, a third delivery pipe, and a fourth delivery pipe, and the thermo-perfusion chemotherapy device further includes a first three-way temperature measuring valve and a second three-way temperature measuring valve for temperature measurement; The three interfaces of the first three-way temperature measuring valve are respectively communicated with the first delivery pipe, the second delivery pipe, and the third delivery pipe, and the three interfaces of the second three-way temperature measuring valve are respectively communicated with one end of the third delivery pipe away from the first three-way temperature measuring valve, the third pipe group, and the fourth delivery pipe; The driving pump and the heating element are installed on the first delivery pipe and located between the first pipe group and the first three-way temperature measuring valve.

3. The thermo-perfusion chemotherapy device according to claim 2, wherein, The opening assembly includes a puncture needle for puncturing to form an insertion port on a target wound, a guide wire for guiding the puncture needle to extend into the insertion port through the insertion port, and a dilator for sleeving on the guide wire after the puncture needle is removed from the insertion port to enter the insertion port under the guidance of the guide wire and expand it.

4. The thermo-perfusion chemotherapy device according to claim 3, wherein, The opening assembly further includes a needle base, and the puncture needle is detachably installed on the needle base.

5. The thermo-perfusion chemotherapy device according to claim 3, characterized in that, The guide wire includes a guiding straight portion, a bending portion connecting the guiding straight portion, and a wear-resistant coating covering the outer surfaces of the guiding straight portion and the bending portion.

6. The thermo-perfusion chemotherapy device according to claim 3, characterized in that The drainage assembly includes a drainage pipe and an extension pipe, and the drainage pipe includes a front-end pipe body and a rear-end pipe body for communicating with the insertion port under the guidance of the guide wire; The extension pipe includes a pipe body, a conical locking joint provided at the first end of the pipe body, a first liquid stop clamp provided on the pipe body, and a trumpet joint provided at the second end of the pipe body, and the rear-end pipe body is detachably connected to the conical locking joint; the trumpet joint is detachably connected to the second pipe group.

7. The thermo-perfusion chemotherapy device according to claim 6, wherein, The drainage pipe further includes a flushing pipe, and the flushing pipe is communicated between the front-end pipe body and the rear-end pipe body; a second liquid stop clamp is provided on the rear-end pipe body.

8. The thermo-perfusion chemotherapy device according to claim 2, wherein, The thermo-perfusion chemotherapy device further includes an injection member provided on the first delivery pipe for injecting drugs.

9. The thermo-perfusion chemotherapy device according to claim 1, wherein The heating element includes a heating reaction tank, a second liquid inlet pipe connected between the inlet end of the main pipeline and the heating reaction tank, a second liquid outlet pipe connected between the outlet end of the main pipeline and the heating reaction tank, and an overflow pipe connected to the bottom of the heating reaction tank.

10. The thermo-perfusion chemotherapy device according to claim 1, wherein, The liquid storage tank includes a tank body having a liquid storage space, a filter screen disposed in the liquid storage space, and an exhaust pipe connecting the liquid storage space; an exhaust valve for controlling the on / off of the exhaust pipe is provided on the exhaust pipe.

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