A device for intraperitoneal hyperthermic perfusion chemotherapy

Abstract

The application discloses a kind of abdominal cavity hyperthermic perfusion chemotherapy device in the technical field of medical devices, including frame, the top in frame is provided with the article track for hanging medicine, frame is equipped with delivery pump, delivery pump liquid inlet end and liquid outlet end are equipped with connecting pipe, and delivery pump is respectively communicated with needle holder and rotating disc rotation connection by connecting pipe, and rotating connection has take-up reel, take-up reel is communicated and is wound with output pipe, rotating connection has water tank in take-up reel, heating element is fixedly connected in water tank, transmission screw is fixedly connected in take-up reel end, transmission screw is screw-connected with slide base, slide base is slidably connected with slide rod, water tank outside is fixedly connected with support, support is fixedly connected with resistor, resistor is slidably connected with slide base, and adjusting piece is fixedly connected with slide base, frame is equipped with recovery tank and liquid guide frame;It can be automatically adjusted the temperature of liquid medicine according to the length of use pipeline, ensure that the temperature of liquid medicine into human body can eliminate pathogenic bacteria, also can avoid causing scald to human body.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a peritoneal hyperthermic perfusion chemotherapy device. Background Technology

[0002] Intraperitoneal chemotherapy is a type of chemotherapy that involves infusing chemotherapy drugs into the peritoneal cavity to achieve a certain concentration, thereby exerting an anti-cancer effect. Currently, in clinical practice, a fluid at approximately 45°C is infused into the peritoneal cavity along with the chemotherapy drugs. The warming effect of the infusion fluid, combined with the synergistic effect of the warming effect and the chemotherapy drugs, enhances the sensitivity of tumor cells, promoting rapid tumor apoptosis and ultimately preventing and treating peritoneal metastasis of tumor cells.

[0003] The optimal temperature for intraperitoneal chemotherapy is 43℃. The reason for heating the medication to 45℃ is that some heat is consumed during the administration of the medication within the tubing. However, in actual use, the length of the tubing varies. Factors such as patient size, bed size, and height all affect the length of the infusion tubing. If the tubing is too long, it is easy to accidentally knock it off, causing secondary injury to the patient. If the tubing is too short, it restricts the patient's movement and can easily cause pulling. The uncertain tubing length means that the amount of heat consumed by the medication within the tubing is uncertain. The longer the tubing, the lower the temperature of the medication when it reaches the abdominal cavity. When the medication temperature is below 43℃, the treatment effect will be affected. Conversely, when the temperature is above 43℃, the patient will experience severe discomfort.

[0004] Therefore, there is a need for a hyperthermic intraperitoneal chemotherapy device that can change the drug temperature according to the length of the infusion tube. Summary of the Invention

[0005] The technical problem of the present invention is to provide a peritoneal hyperthermic perfusion chemotherapy device that can automatically adjust the temperature of the drug solution according to the length of the tubing used, so as to ensure that the temperature of the drug solution entering the human body is sufficient to kill bacteria and avoid causing burns to the human body.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A frame is included, with a storage track for suspending drugs at the top of the frame. A delivery pump is installed within the frame, and connecting pipes are installed at both the inlet and outlet ends of the delivery pump. The delivery pump is connected to a needle holder and a turntable via the connecting pipes. A take-up frame is rotatably connected to the turntable, and an output pipe is wound around the take-up frame. A water tank is rotatably connected to the take-up frame, and a heating element is fixedly connected inside the water tank. A transmission screw is fixedly connected to the end of the take-up frame, and a slide block is threadedly connected to the transmission screw. A slide rod is slidably connected to the slide block. A bracket is fixedly connected to the outside of the water tank, and a resistor is fixedly connected to the bracket. An adjusting element is slidably connected to the resistor and fixedly connected to the slide block. A recovery box and a liquid guide frame are installed within the frame, and a return pipe is installed on the liquid guide frame.

[0007] As a further embodiment of the present invention, the delivery pump includes a housing, a limit frame slidably connected inside the housing, a rotating shaft rotatably connected inside the housing, a rotating frame fixedly connected to the rotating shaft, a pressure roller rotatably connected to the end of the rotating frame, a delivery pipe provided between the pressure roller and the limit frame, and a lower limit ring slidably connected to the housing at both ends of the delivery pipe.

[0008] As a further embodiment of the present invention, each of the lower limiting rings is inserted with a connector that is fixedly connected to the connecting pipe, the end of the connecting pipe is fixedly connected with an upper limiting ring, the top of the limiting frame is fixedly connected with a buckle for pressing down the upper limiting ring, and a return spring is fixedly connected between the limiting frame and the outer shell.

[0009] As a further embodiment of the present invention, a drive cam is fixedly connected to the end of the rotating shaft, the drive cam engages with a transmission shaft, the transmission shaft engages with a driven cam, the driven cam is coaxially fixedly connected to a fixed shaft, and the fixed shaft is coaxially rotatably connected to a plurality of digital wheels arranged in a linear array. A limit pin is fixedly connected to one side of each digital wheel, and a drive pin is eccentrically fixedly connected to both the other side of the digital wheel and the driven cam. The limit pin engages with a transmission gear.

[0010] As a further embodiment of the present invention, the needle seat includes a base fixedly connected to the frame, and limit screws are fixedly connected to both ends of the base. The limit screws are fixedly connected to pressure plates by nuts, and a rubber pad is provided between the pressure plate and the base.

[0011] As a further embodiment of the present invention, a fixing bolt is fixedly connected to the top of the storage track, and a fixing nut is threaded onto the fixing bolt. A sliding groove is provided on the top of the frame to slide with the fixing bolt, and a hook is slidably connected to the bottom of the storage track.

[0012] As a further embodiment of the present invention, an L-shaped baffle is slidably connected to the top of the recycling bin, and a relief spring is fixedly connected between the baffle and the recycling bin. Both the recycling bin and the liquid guide frame are provided with feeding grooves that cooperate with the baffle.

[0013] As a further embodiment of the present invention, a telescopic structure is installed at the bottom of the recycling bin, a roller is provided at the bottom of the telescopic structure, and inner grooves are provided on both sides of the bottom of the recycling bin, with a limiting plate slidably connected to the inner groove and fixedly connected to the frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this invention, by pulling the output tube, the take-up frame drives the transmission screw to rotate, the transmission screw drives the slide block connected to it to move, the slide block moves along the slide rod and drives the adjusting component to move. As the adjusting component moves, the length of the resistor connected to the power supply decreases, the heat dissipation of the heating element increases, and the temperature of the water in the water tank is further increased, so that the temperature of the medicine after passing through the water tank is further increased. This avoids the output tube being exposed to the outside and increasing its length, which would cause the medicine to reach the body at too low a temperature, thus affecting the patient's treatment effect.

[0016] 2. In this invention, by rotating the take-up frame in the reverse direction, the excess part of the output tube is wound around the take-up frame, avoiding the output tube being too long and causing pulling, which could cause secondary injury to the human body. The transmission screw drives the slide to move in the reverse direction, and the slide drives the adjusting component to move in the reverse direction along the resistor. At this time, the length of the resistor connected to the power supply increases, the heat dissipation of the heating element decreases, the water temperature in the water tank decreases, and the temperature of the medicine entering the take-up frame decreases. This avoids the output tube length being shortened, which would reduce the heat consumption during the medicine delivery process, resulting in the medicine entering the body being too hot and causing burns to the internal organs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the connection structure of the delivery pump of the present invention;

[0023] Figure 6 This is a schematic diagram of the overall structure of the delivery pump of the present invention;

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the water tank of the present invention;

[0025] Figure 8 This is a schematic diagram of the slide block and its connection structure according to the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of the present invention from the perspective of Eastern soil theory;

[0027] Figure 10 This is a schematic diagram of the exploded structure of the needle seat of the present invention;

[0028] Figure 11 This is a schematic diagram of the object placement track and its connection structure according to the present invention;

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Frame; 11. Return spring; 12. Connecting pipe; 2. Delivery pump; 20. Buckle; 21. Housing; 22. Limiting frame; 23. Rotating shaft; 24. Rotating frame; 25. Pressure roller; 26. Delivery pipe; 27. Lower limit ring; 28. Connector; 29. ​​Upper limit ring; 3. Needle seat; 31. Base; 32. Limiting screw; 33. Pressure plate; 34. Rubber pad; 4. Water tank; 41. Turntable; 42. Take-up frame; 43. Output pipe; 44. Heating element; 45. Transmission screw; 5. 51. Bracket; 52. Slide; 53. Slide rod; 54. Resistor; 6. Adjusting component; 6. Recycling bin; 61. Baffle; 62. Yield spring; 63. Feed chute; 64. Telescopic structure; 71. Drive cam; 72. Drive shaft; 73. Driven cam; 74. Digital wheel; 75. Limit pin; 76. Drive pin; 77. Transmission gear; 8. Storage track; 81. Fixing bolt; 82. Fixing nut; 83. Slide groove; 84. Hook; 9. Liquid guide rack; 91. Return pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-11 The present invention provides a technical solution comprising: a frame 1, a storage track 8 for suspending medicine is provided at the top of the frame 1, a delivery pump 2 is installed inside the frame 1, a connecting pipe 12 is installed at both the inlet and outlet of the delivery pump 2, and the delivery pump 2 is connected to a needle seat 3 and a turntable 41 through the connecting pipe 12 respectively, the turntable 41 is rotatably connected to a take-up frame 42, the take-up frame 42 is connected to and has an output pipe 43 wound around it, the take-up frame 42 is rotatably connected to a water tank 4, a heating element 44 is fixedly connected inside the water tank 4, a transmission screw 45 is fixedly connected to the end of the take-up frame 42, a slide seat 51 is threadedly connected to the transmission screw 45, a slide rod 52 is slidably connected to the slide seat 51, a bracket 5 is fixedly connected to the outside of the water tank 4, a resistor 53 is fixedly connected to the bracket 5, an adjusting element 54 is slidably connected to the resistor 53 and fixedly connected to the slide seat 51, a recovery box 6 and a liquid guide frame 9 are installed inside the frame 1, and a return pipe 91 is installed on the liquid guide frame 9;

[0033] Before use, the output tube 43 and return tube 91 are inserted into the patient's body via puncture or surgery. When medication infusion is required, the medication bag is suspended on the storage track 8 and connected to the needle hub 3. The delivery pump 2 is activated, and the medication flows out of the medication bag under the action of the delivery pump 2, passing through the connecting tube 12, the delivery pump 2, and the connecting tube 12 into the take-up holder 42. The heating element 44 heats the medication in the take-up holder 42 to a suitable temperature using water in the water tank 4. The heated medication is then delivered into the patient's body through the output tube 43. When the patient's body is full of medication, the medication flows into the device through the return tube 91. Guided by the guide tube 9, the medication enters the recovery box 6, completing the infusion chemotherapy. When the length of the device required by the patient needs to be increased, the output tube 43 is pulled to a suitable length and the output tube is... 43 is fixed to the device frame 1 to prevent the take-up frame 42 from retracting, which would cause the output tube 43 to retract and pull on the patient. Since the output tube 43 is partially wrapped around the take-up frame 42, a torsion spring is provided between the take-up frame 42 and the water tank 4 for the take-up frame 42 to retract. When the output tube 43 is pulled, the take-up frame 42 drives the transmission screw 45 to rotate. The transmission screw 45 drives the slide 51 connected to it to move. The slide 51 moves along the slide rod 52 and drives the adjusting member 54 to move. As the adjusting member 54 moves, the length of the resistor 53 connected to the power supply decreases, the heat dissipation of the heating element 44 increases, and the temperature of the water in the water tank 4 is further increased, so that the temperature of the drug after passing through the water tank 4 is further increased. This prevents the length of the output tube 43 from increasing, which would cause the drug to reach the body at too low a temperature and affect the patient's treatment effect.

[0034] When the patient needs to use a shorter length, the fixing between the output tube 43 and the device frame 1 is removed. Under the action of the torsion spring, the take-up frame 42 rotates in the opposite direction. The excess part of the output tube 43 is wrapped around the take-up frame 42 to avoid the output tube 43 being too long and causing pulling, which could cause secondary injury to the human body. The transmission screw 45 drives the slide 51 to move in the opposite direction. The slide 51 drives the adjusting component 54 to move in the opposite direction along the resistor 53. At this time, the length of the resistor 53 connected to the power supply increases, the heat dissipation of the heating element 44 decreases, the water temperature in the water tank 4 decreases, and the temperature of the medicine entering the take-up frame 42 decreases. This avoids the reduction of heat consumption during the drug delivery process due to the shortening of the output tube 43, which could lead to the medicine entering the body being too hot and causing burns to the internal organs of the human body.

[0035] In summary, by pulling the output tube 43, the take-up bracket 42 drives the transmission screw 45 to rotate. The transmission screw 45 drives the slide 51, which is threadedly connected to it, to move. The slide 51 moves along the slide rod 52 and drives the adjusting member 54 to move. As the adjusting member 54 moves, the length of the resistor 53 connected to the power supply decreases, the heat dissipation of the heating element 44 increases, and the temperature of the water in the water tank 4 is further increased. This further increases the temperature of the medicine after passing through the water tank 4, preventing the output tube 43 from being exposed for too long, which could lead to the medicine reaching the body at too low a temperature and affect the patient's treatment effect. The take-up bracket 4... 2. Reverse rotation: The excess part of the output tube 43 is wound around the take-up frame 42 to prevent the output tube 43 from being too long and causing pulling, which could cause secondary injury to the human body. The transmission screw 45 drives the slide 51 to move in the reverse direction. The slide 51 drives the adjusting component 54 to move in the reverse direction along the resistor 53. At this time, the length of the resistor 53 connected to the power supply increases, the heat dissipation of the heating element 44 decreases, the water temperature in the water tank 4 decreases, and the temperature of the medicine entering the take-up frame 42 decreases. This prevents the output tube 43 from shortening, which would reduce the heat consumption during the medicine delivery process and cause the medicine entering the body to be too hot, resulting in burns to the human body's internal organs.

[0036] As a further embodiment of the present invention, the delivery pump 2 includes a housing 21, a limit frame 22 is slidably connected inside the housing 21, a rotating shaft 23 is rotatably connected inside the housing 21, a rotating frame 24 is fixedly connected to the rotating shaft 23, a pressure roller 25 is rotatably connected to the end of the rotating frame 24, a delivery pipe 26 is provided between the pressure roller 25 and the limit frame 22, and both ends of the delivery pipe 26 are fixedly connected to a lower limit ring 27 that is slidably connected to the housing 21.

[0037] In use, the rotating shaft 23 rotates, which drives the pressure rollers 25 to rotate via the rotating frame 24. When one of the pressure rollers 25 contacts and compresses the delivery tube 26, the two ends of the delivery tube 26 are separated by the pressure rollers 25. As the pressure rollers 25 move, the liquid medicine in the delivery tube 26 moves with them. The liquid medicine is always inside the delivery tube 26 and does not come into contact with the outside world, thus avoiding contamination of the liquid medicine and affecting the patient's treatment. When the second pressure roller 25 contacts the delivery tube 26, the amount of liquid medicine between this pressure roller 25 and the previous pressure roller 25 is fixed. Therefore, the amount of liquid medicine that can be delivered with each rotation of the rotating shaft 23 is fixed, enabling the delivery pump 2 to complete the quantitative delivery of liquid medicine, which facilitates the control of the amount of liquid medicine. At the same time, the liquid medicine between the pressure rollers 25 is restricted by the pressure rollers 25 and will not flow back. A pressure valve (not marked in the figure) is set at the end of the return pipe 91. The delivery pump 2 can infuse the medicine into the patient's body and maintain a certain pressure, that is, a slight feeling of fullness, which can improve the treatment effect.

[0038] As a further embodiment of the present invention, each of the lower limit rings 27 is inserted with a connector 28 that is fixedly connected to the connecting tube 12, the end of the connecting tube 12 is fixedly connected with an upper limit ring 29, the top of the limit frame 22 is fixedly connected with a buckle 20 for pressing down the upper limit ring 29, and a return spring 11 is fixedly connected between the limit frame 22 and the outer shell 21.

[0039] In use, press down the limiting frame 22. As the limiting frame 22 moves downward, the pressure roller 25 disengages from the delivery tube 26. At this time, remove the middle section of the delivery tube 26, release the limiting frame 22, and the return spring 11 pushes the limiting frame 22 upward. The buckle 20 disengages from the upper limit ring 29. Then, pull the connector 28 out of the lower limit ring 27 and replace the used delivery tube 26. Insert the connector 28 at the end of the connecting tube 12 into the lower limit rings 27 at both ends of the new delivery tube 26. Pull down the limiting frame 22 again and place the middle part of the new delivery tube 26 between the limiting frame 22 and the pressure roller 25. At the same time, the buckle 20 descends, and the connector 28 continues to be pressed down into the lower limit ring 27. The connector 28 separates from the lower limit ring 27 to prevent damage to the delivery tube 26, which could lead to drug spillage or the delivery of external contaminants into the patient's body, causing harm to the patient.

[0040] At the same time, the return spring 11 can ensure that the pressure roller 25 and the delivery pipe 26 maintain appropriate pressure, so as to avoid continuous infusion of medicine into the patient's abdominal cavity when the pipeline is blocked, which would increase the patient's pain.

[0041] As a further embodiment of the present invention, a drive cam 71 is fixedly connected to the end of the rotating shaft 23. The drive cam 71 engages with a transmission shaft 72. The transmission shaft 72 engages with a driven cam 73. The driven cam 73 is coaxially rotatably connected to a fixed shaft. The fixed shaft is coaxially rotatably connected to a plurality of linearly arrayed digital wheels 74. A limit pin 75 is fixedly connected to one side of the digital wheel 74. A drive pin 76 is eccentrically fixedly connected to both the digital wheel 74 and the driven cam 73. The limit pin 75 engages with a transmission gear 77.

[0042] In use, the rotating shaft 23 also drives the drive cam 71 to rotate. The drive cam 71 drives the driven cam 73 to rotate through the transmission shaft 72. The driven cam 73 drives the eccentrically set drive pin 76 to rotate. When the drive pin 76 contacts the transmission gear 77, the transmission gear 77 rotates and drives the adjacent digital wheel 74 to rotate a certain angle through the limit pin 75, so that the leading number of the digital wheel 74 changes, which is convenient for recording the amount of medicine delivered by the delivery pump 2. The rotation of the digital wheel 74 also drives the drive pin 76 fixedly connected to it to rotate. The drive pin 76 repeats the action of the previous drive pin 76, so that the first digital wheel 74 rotates one revolution, the adjacent digital wheel 74 rotates a certain angle, and so on.

[0043] As a further embodiment of the present invention, the needle seat 3 includes a base 31 fixedly connected to the frame 1. Both ends of the base 31 are fixedly connected to limit screws 32. The limit screws 32 are fixedly connected to a pressure plate 33 by nuts. A rubber pad 34 is provided between the pressure plate 33 and the base 31.

[0044] In use, the medication can be injected into the base 31 by inserting a needle into the rubber pad 34. The limiting screw 32 and nut can fix the pressure plate 33 on the base 31, preventing the rubber pad 34 from moving at will and preventing air leakage between the pressure plate 33 and the base 31, which would affect the patient's medication infusion. At the same time, the rubber pad 34 can be replaced to avoid the rubber pad 34 having too many holes, which would prevent it from failing to isolate external gas.

[0045] As a further embodiment of the present invention, a fixing bolt 81 is fixedly connected to the top of the storage track 8, a fixing nut 82 is threadedly connected to the fixing bolt 81, a groove 83 is opened on the top of the frame 1 to slide in connection with the fixing bolt 81, and a hook 84 is slidably connected to the bottom of the storage track 8.

[0046] In use, the storage track 8 allows for easy movement of the hook 84, making it convenient to hang the medicine bag on the hook 84. The fixing bolt 81 and fixing nut 82 can fix the storage track 8 at any position on the frame 1, and the number of storage tracks 8 can also be increased or decreased to facilitate the infusion of different amounts of medicine by the patient.

[0047] As a further embodiment of the present invention, an L-shaped baffle 61 is slidably connected to the top of the recycling box 6, and a relief spring 62 is fixedly connected between the baffle 61 and the recycling box 6. Both the recycling box 6 and the liquid guide frame 9 are provided with a feeding groove 63 that cooperates with the baffle 61.

[0048] When the recovered liquid in the recycling bin 6 needs to be processed, pull out the recycling bin 6. The release spring 62 pushes the baffle 61 forward, and the baffle 61 blocks the feed chute 63 to prevent the liquid odor from overflowing and affecting others.

[0049] As a further embodiment of the present invention, a telescopic structure 64 is installed at the bottom of the recycling bin 6, and rollers are provided at the bottom of the telescopic structure 64. Inner grooves are provided on both sides of the bottom of the recycling bin 6, and a limiting plate that is fixedly connected to the frame 1 is slidably connected to the inner grooves.

[0050] When in use, after the recycling bin 6 is pulled out, the telescopic structure 64 extends the rollers out of the recycling bin 6, making it easy to move the recycling bin 6.

Claims

1. A hyperthermic intraperitoneal chemotherapy device, comprising a frame (1), characterized in that: The frame (1) is equipped with a storage track (8) for suspending drugs at the top. A delivery pump (2) is installed inside the frame (1). Both the inlet and outlet ends of the delivery pump (2) are equipped with connecting pipes (12). The delivery pump (2) is connected to a needle holder (3) and a turntable (41) through the connecting pipes (12). The turntable (41) is rotatably connected to a take-up frame (42). The take-up frame (42) is connected to and has an output pipe (43) wound around it. The take-up frame (42) is rotatably connected to a water tank (4). A heating element is fixedly connected inside the water tank (4). 44), the end of the take-up frame (42) is fixedly connected to a transmission screw (45), the transmission screw (45) is threadedly connected to a slide (51), the slide (51) is slidably connected to a slide rod (52), the outside of the water tank (4) is fixedly connected to a bracket (5), the bracket (5) is fixedly connected to a resistor (53), the resistor (53) is slidably connected to an adjusting component (54) fixedly connected to the slide (51), the frame (1) is equipped with a recycling box (6) and a liquid guide frame (9), the liquid guide frame (9) is equipped with a return pipe (91); The delivery pump (2) includes a housing (21), a limit frame (22) is slidably connected inside the housing (21), a rotating shaft (23) is rotatably connected inside the housing (21), a rotating frame (24) is fixedly connected to the rotating shaft (23), a pressure roller (25) is rotatably connected to the end of the rotating frame (24), a delivery pipe (26) is provided between the pressure roller (25) and the limit frame (22), and both ends of the delivery pipe (26) are fixedly connected to a lower limit ring (27) that is slidably connected to the housing (21). Each of the lower limiting rings (27) is inserted with a connector (28) that is fixedly connected to the connecting tube (12). The end of the connecting tube (12) is fixedly connected with an upper limiting ring (29). The top of the limiting frame (22) is fixedly connected with a buckle (20) for pressing down the upper limiting ring (29). A return spring (11) is fixedly connected between the limiting frame (22) and the outer shell (21). A drive cam (71) is fixedly connected to the end of the rotating shaft (23). The drive cam (71) meshes with a transmission shaft (72). The transmission shaft (72) meshes with a driven cam (73). The driven cam (73) is coaxially fixedly connected to a fixed shaft. The fixed shaft is coaxially rotatably connected to several linearly arranged digital wheels (74). A limit pin (75) is fixedly connected to one side of the digital wheel (74). A drive pin (76) is eccentrically fixedly connected to both the digital wheel (74) and the driven cam (73). The limit pin (75) meshes with a transmission gear (77).

2. The intraperitoneal hyperthermic perfusion chemotherapy device according to claim 1, characterized in that: The needle seat (3) includes a base (31) fixedly connected to the frame (1). Both ends of the base (31) are fixedly connected to limit screws (32). The limit screws (32) are fixedly connected to pressure plates (33) through nuts. A rubber pad (34) is provided between the pressure plate (33) and the base (31).

3. The intraperitoneal hyperthermic perfusion chemotherapy device according to claim 1, characterized in that: The top of the storage track (8) is fixedly connected with a fixing bolt (81), and the fixing bolt (81) is threadedly connected with a fixing nut (82). The top of the frame (1) is provided with a sliding groove (83) that is slidably connected to the fixing bolt (81), and the bottom of the storage track (8) is slidably connected with a hook (84).

4. The intraperitoneal hyperthermic perfusion chemotherapy device according to claim 1, characterized in that: The bottom of the recycling bin (6) is equipped with a telescopic structure (64), the bottom of the telescopic structure (64) is provided with rollers, and the bottom sides of the recycling bin (6) are provided with inner grooves, and the inner grooves are slidably connected with a limiting plate that is fixedly connected to the frame (1).

Images