Large-dose self-control analgesia equipment modified based on chemotherapy pump

Abstract

The invention discloses large-dose self-control analgesia equipment modified based on a chemotherapy pump, and relates to the technical field of self-control analgesia equipment.The large-dose self-control analgesia equipment modified based on the chemotherapy pump comprises a shell, a first medicament tank, a second medicament tank and a pump body, a separation frame is fixedly installed in the shell, and the large-dose self-control analgesia equipment further comprises a dismounting device, a first control device and a second control device, the replacement device comprises a butt joint pipe, a communicating pipe, a fixing piece, a rotating protection plate, a baffle, a fixing plate and a pushing plate, and the butt joint pipe fixedly penetrates through the inner wall and the outer wall of the second medicament tank. Meanwhile, the rotating protection plate is in rotating contact with the agent tank II and the agent tank I and further limits the agent tank II and the agent tank I, so that the agent tank II is quickly mounted, the agent tank I and the agent tank II can be directly replaced after use, the agent does not need to be directly added into equipment, and the risk that the agent is polluted can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of self - controlled analgesia devices, and specifically to a large - dose self - controlled analgesia device based on the transformation of a chemotherapy pump. Background Technique

[0002] A self - controlled analgesia device is a medical device that allows patients to actively control their pain management. This device is commonly used for in - patients, especially in the management of acute pain after surgery or caused by some diseases. Its main advantage is that it can self - regulate the medication according to the individual needs of patients, thus providing a more flexible and effective analgesic effect.

[0003] The patent with the patent announcement number CN221014172U relates to a postoperative analgesia and hemostasis device, belonging to the technical field of medical devices, including: a support plate, on the top surface of which a placement box is fixedly installed, at the top of the placement box, a material box is fixedly installed, a cover plate is connected to the top surface of the material box, and a machine box is fixedly installed at the center of the top surface of the cover plate. In this patent, by turning on the heating tube through the control panel, the liquid medicine in the material box can be heated. After the temperature inside the liquid medicine is monitored by the temperature sensor and heated to an appropriate temperature, the heating tube stops heating, and the temperature of the heating tube is set to be constant, which can reduce the discomfort of patients caused by the low temperature of the liquid medicine when it is applied to the patient's wound. Starting the bidirectional motor can make the connecting rod operate, so that the stirring rod installed on the surface stirs the liquid medicine in the inner cavity of the material box, making the analgesic liquid medicine and the hemostatic liquid medicine fully mixed.

[0004] In the above - mentioned patent, the analgesic agent is directly added to the device, which is prone to contamination. At the same time, it is very troublesome to open and add the agent after it is used up. Therefore, a large - dose self - controlled analgesia device based on the transformation of a chemotherapy pump is designed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a large - dose self - controlled analgesia device based on the transformation of a chemotherapy pump, which solves the problems raised in the above - mentioned background technique.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A large-dose self-controlled analgesia device based on the transformation of a chemotherapy pump, including a housing, a first medicine tank, a second medicine tank, and a pump body. A partition frame is fixedly installed inside the housing, and it further includes: a disassembly device, which includes a docking pipe, a connecting pipe, a fixing member, a rotating protection plate, a baffle plate, a fixing plate, and a pushing plate. The movement of the second medicine tank drives the movement of the docking pipe, and the movement of the docking pipe contacts the connecting pipe to achieve docking. The docking pipe fixedly penetrates the inner and outer walls of the second medicine tank, the connecting pipe fixedly penetrates the inner and outer walls of the partition frame, the fixing member is fixedly installed on the surface of the partition frame, the rotating protection plate is rotatably installed inside the fixing member, the baffle plate is fixedly installed on the inner wall of the housing, the fixing plate is fixedly installed at the bottom of the inner wall of the housing, the pushing plate is slidably installed on the surface of the fixing plate, and the rotating protection plate rotates to contact the second medicine tank and further limit it, thus realizing the rapid installation of the second medicine tank.

[0007] According to the above technical solution, a chute is provided on the surface of the fixing plate, and a first spring is arranged between the pushing plate and the inner wall of the chute. The inner wall of the connecting pipe is conical, and the cone can achieve the docking of the docking pipe and the connecting pipe. The movement of the pushing plate compresses the first spring to contract, and after the first spring contracts, it limits the second medicine tank.

[0008] According to the above technical solution, the surface of the baffle plate is set as a first arc surface, and the side of the pushing plate away from the fixing plate is set as a second arc surface. After the first spring contracts, it limits the second medicine tank under the action of the second arc surface.

[0009] According to the above technical solution, a limiting device for improving the docking stability of the docking pipe and the connecting pipe is provided on the surface of the fixing plate. The limiting device includes a pushing rod and a connecting rod. The pushing rod is slidably installed above the fixing plate, and the connecting rod is rotatably installed inside the pushing rod. The limiting device further includes a lifting rod, a fixing block, a connecting rod, a limiting frame, and a limiting block. When the rotating protection plate rotates, it drives the fixing block to rotate around the fixing member. When the fixing block rotates, it drives one end of the connecting rod to move downward. One end of the connecting rod moving downward drives the lifting rod to move downward through the other end. The lifting rod is slidably installed on one side of the partition frame close to the fixing member. The fixing block is fixedly installed below the rotating protection plate. The connecting rod is rotatably installed inside the fixing block. A limiting groove is provided on the surface of the fixing plate. The limiting frame is slidably installed inside the limiting groove. The limiting block is slidably installed inside the limiting frame. The movement of the pushing plate contacts and drives the second medicine tank to move. The movement of the second medicine tank drives the movement of the docking pipe, making the docking of the docking pipe and the connecting pipe more accurate during the installation process. The pump body is connected to the first medicine tank and the second medicine tank through hoses.

[0010] According to the above technical solution, one end of the connecting rod away from the push rod is rotatably connected to the lifting rod, one end of the connecting rod away from the rotating protection plate is rotatably connected to the lifting rod, the push plate moves into contact with and pushes the second medicine tank to move, and the movement of the second medicine tank drives the docking pipe to move, so that the docking pipe and the communicating pipe are more accurately docked during the installation process.

[0011] According to the above technical solution, one side of the push rod close to the push plate is provided with a first inclined surface. The push rod moves to squeeze the push plate to move through the first inclined surface. One side of the upper part of the limit block close to the push rod is provided with a second inclined surface. The push rod moves to squeeze the limit block to move downward through the second inclined surface.

[0012] According to the above technical solution, a clamping groove is formed on the surface of the push rod. A first telescopic elastic rod is arranged between the inner wall of the limit frame and the limit groove, and the first telescopic elastic rod can drive the limit frame to reset. A second telescopic elastic rod is arranged between the limit block and the limit frame, and the second telescopic elastic rod can drive the limit block to reset.

[0013] According to the above technical solution, a sealing device for improving the docking tightness between the docking pipe and the communicating pipe is arranged on the surface of the partition frame. The sealing device includes a receiving frame and a sealing frame. The receiving frame is fixedly installed on one side of the partition frame close to the fixing part, and the sealing frame is slidably installed on one side of the partition frame close to the fixing part. The sealing device further includes a T-shaped rod, an L-shaped plate and a receiving rod. When the lifting rod moves downward, it drives the T-shaped rod to move downward, and the downward movement of the T-shaped rod drives the sealing frame to move downward. The T-shaped rod is slidably installed on one side of the partition frame close to the fixing part. The L-shaped plate slidably penetrates through the inner and outer walls above the sealing frame. The receiving rod is fixedly installed above the sealing frame. The sealing frame moves downward to contact the receiving frame and seals the connection between the docking pipe and the communicating pipe under its action, preventing leakage under the action of water pressure during the use of the medicine and ensuring the stability of the pressure and flow rate in the pipeline.

[0014] According to the above technical solution, the lower part of the T-shaped rod is fixedly connected to the lifting rod, and one end of the T-shaped rod away from the lifting rod is fixedly connected to the sealing frame. The downward movement of the T-shaped rod drives the sealing frame to move downward, and the sealing frame moves downward to contact the receiving frame.

[0015] According to the above technical solution, the L-shaped plate is slidably connected to the outer wall of the partition frame. The receiving rod slidably penetrates through the upper and lower walls of the L-shaped plate. A second spring is arranged between the receiving rod and the L-shaped plate, and the second spring can drive the L-shaped plate to reset.

[0016] The present invention provides a large-dose self-controlled analgesia device based on the transformation of a chemotherapy pump. It has the following beneficial effects:

[0017] (1) The large-dose self-controlled analgesia device based on the transformation of the chemotherapy pump realizes the rapid installation of the medicine tank two through the cooperation of the partition frame, the docking pipe, the connecting pipe, the fixing piece, the rotating protection plate, the baffle plate, the fixing plate and the pushing plate. Under the action of the arc surface two on the surface of the pushing plate, the medicine tank two is limited. Subsequently, the rotating protection plate is rotated, and the rotating protection plate rotates to contact the medicine tank two and further limits it, thereby realizing the rapid installation of the medicine tank two. After use, directly replace the medicine tank one and the medicine tank two, which is very convenient, and there is no need to directly add the medicine to the device, which can reduce the risk of the medicine being contaminated.

[0018] (2) The large-dose self-controlled analgesia device based on the transformation of the chemotherapy pump realizes the more accurate docking of the docking pipe and the connecting pipe during the installation process and fixes the medicine tank two through the cooperation of the push rod, the connecting rod, the lifting rod, the fixing block, the connecting rod, the limiting frame and the limiting block. At the same time, the movement of the push rod drives the medicine tank two to move through the pushing plate, avoiding the shaking of the medicine tank two during the movement of the outer shell, which may cause the connection between the docking pipe and the connecting pipe to become loose, and improving the stability of the outer shell during operation.

[0019] (3) The large-dose self-controlled analgesia device based on the transformation of the chemotherapy pump seals the connection between the docking pipe and the connecting pipe by the downward movement of the sealing frame through the cooperation of the receiving frame, the sealing frame, the T-shaped rod, the L-shaped plate and the receiving rod, avoiding leakage under the action of water pressure during the use of the medicine, and ensuring that the pressure and flow rate in the pipeline remain stable. At the same time, under the action of the L-shaped plate and the second spring, the connecting pipe is closed during the replacement process, avoiding foreign objects from entering the inside of the partition frame through the connecting pipe during the replacement of the medicine tank two and contaminating the medicine inside, and reducing the subsequent maintenance cost. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the position structure of the partition frame and the fixing plate of the present invention;

[0022] Figure 3 It is a schematic diagram of the position structure of the rotating protection plate and the pushing plate of the present invention;

[0023] Figure 4 It is of the present invention Figure 3 The enlarged structure schematic diagram of part A;

[0024] Figure 5 It is of the present invention Figure 3 The enlarged structure schematic diagram of part B;

[0025] Figure 6 It is a schematic diagram of the position structure of the fixing plate and the pushing plate of the present invention;

[0026] Figure 7 This is a schematic diagram of the positional structure of the L-shaped plate and the T-shaped plate of the present invention;

[0027] Figure 8 This is a schematic diagram of the positional structure of the sealing frame and the receiving rod of the present invention.

[0028] In the figure: 1. Outer shell; 2. First medicine tank; 3. Second medicine tank; 4. Pump body; 5. Partition frame; 6. Docking pipe; 7. Connecting pipe; 8. Fixing piece; 9. Rotating protection plate; 10. Baffle plate; 11. Fixing plate; 12. Pushing plate; 13. First spring; 141. Pushing rod; 142. Connecting rod; 143. Lifting rod; 144. Fixing block; 145. Link rod; 146. Limiting frame; 147. Limiting block; 148. First telescopic spring rod; 149. Second telescopic spring rod; 151. Receiving frame; 152. Sealing frame; 153. T-shaped rod; 154. L-shaped plate; 155. Receiving rod; 156. Second spring. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 - 8 , an embodiment of the present invention is: A large-dose self-controlled analgesia device based on the transformation of a chemotherapy pump, including an outer shell 1, a first medicine tank 2, a second medicine tank 3 and a pump body 4. A partition frame 5 is fixedly installed inside the outer shell 1. It further includes: a disassembly device, which includes a docking pipe 6, a connecting pipe 7, a fixing piece 8, a rotating protection plate 9, a baffle plate 10, a fixing plate 11 and a pushing plate 12. The movement of the second medicine tank 3 drives the movement of the docking pipe 6. The movement of the docking pipe 6 contacts the connecting pipe 7 to achieve docking. The docking pipe 6 fixedly penetrates the inner and outer walls of the second medicine tank 3. The connecting pipe 7 fixedly penetrates the inner and outer walls of the partition frame 5. The fixing piece 8 is fixedly installed on the surface of the partition frame 5. The rotating protection plate 9 is rotatably installed inside the fixing piece 8. The baffle plate 10 is fixedly installed on the inner wall of the outer shell 1. The fixing plate 11 is fixedly installed at the bottom of the inner wall of the outer shell 1. The pushing plate 12 is slidably installed on the surface of the fixing plate 11. The rotating protection plate 9 rotates to contact the second medicine tank 3 and further limits it, thereby realizing the rapid installation of the second medicine tank 3. The pump body 4 is connected to the first medicine tank 2 and the second medicine tank 3 through a hose.

[0031] The surface of the fixing plate 11 is provided with a sliding groove. A first spring 13 is arranged between the pushing plate 12 and the inner wall of the sliding groove. The inner wall of the connecting pipe 7 is conical, and the cone can realize the docking of the docking pipe 6 and the connecting pipe 7. The pushing plate 12 moves to squeeze the first spring 13 to contract. After the first spring 13 contracts, it limits the second medicine tank 3.

[0032] The surface of the baffle 10 is set as the first arc surface, and the side of the pushing plate 12 away from the fixing plate 11 is set as the second arc surface. After the first spring 13 contracts, it limits the second medicine tank 3 under the action of the second arc surface.

[0033] When this embodiment works: During the installation of the second medicine tank 3, move the second medicine tank 3 towards the partition frame 5 inside the housing 1. The movement of the second medicine tank 3 drives the movement of the docking pipe 6. The movement of the docking pipe 6 contacts the connecting pipe 7 to achieve docking. At the same time, the second medicine tank 3 moves to contact and squeeze the pushing plate 12 to move towards the direction close to the fixing plate 11. The pushing plate 12 moves to squeeze the first spring 13 to contract. After the first spring 13 contracts, it limits the second medicine tank 3 under the action of the second arc surface on the surface of the pushing plate 12. Then rotate the protective plate 9. The rotation of the protective plate 9 rotates to contact the second medicine tank 3 and further limits it, thus realizing the rapid installation of the second medicine tank 3, and installing the first medicine tank 2 accordingly. Then the pump body 4 is started and the analgesic liquid in the second medicine tank 3 and the first medicine tank 2 is pumped and injected into the human body through the docking pipe 6 and the connecting pipe 7. And the dosage and type of the medicine in the second medicine tank 3 and the first medicine tank 2 can be controlled to achieve different dosages of analgesia. After use, directly replace the first medicine tank 2 and the second medicine tank 3. There is no need to directly add the medicine to the device, which can reduce the risk of the medicine being contaminated.

[0034] Please refer to Figures 1 - 8, on the basis of the above embodiments, in another embodiment of the present invention, a limiting device for improving the docking stability between the docking pipe 6 and the communicating pipe 7 is provided on the surface of the fixing plate 11. The limiting device includes a push rod 141 and a connecting rod 142. The push rod 141 is slidably installed above the fixing plate 11, and the connecting rod 142 is rotatably installed inside the push rod 141. The limiting device further includes a lifting rod 143, a fixing block 144, a connecting rod 145, a limiting frame 146 and a limiting block 147. When the rotating protection plate 9 rotates, it drives the fixing block 144 to rotate around the fixing member 8. When the fixing block 144 rotates, it drives one end of the connecting rod 145 to move downward. One end of the connecting rod 145 moving downward drives the lifting rod 143 to move downward through the other end. The lifting rod 143 is slidably installed on one side of the partition frame 5 close to the fixing member 8. The fixing block 144 is fixedly installed below the rotating protection plate 9. The connecting rod 145 is rotatably installed inside the fixing block 144. A limiting groove is formed on the surface of the fixing plate 11. The limiting frame 146 is slidably installed inside the limiting groove. The limiting block 147 is slidably installed inside the limiting frame 146. The push plate 12 moves to contact and push the second medicine tank 3 to move. The movement of the second medicine tank 3 drives the docking pipe 6 to move, so that the docking between the docking pipe 6 and the communicating pipe 7 is more accurate during the installation process.

[0035] One end of the connecting rod 142 away from the push rod 141 is rotatably connected to the lifting rod 143. One end of the connecting rod 145 away from the rotating protection plate 9 is rotatably connected to the lifting rod 143. The push plate 12 moves to contact and push the second medicine tank 3 to move. The movement of the second medicine tank 3 drives the docking pipe 6 to move, so that the docking between the docking pipe 6 and the communicating pipe 7 is more accurate during the installation process.

[0036] One side of the push rod 141 close to the push plate 12 is provided with a first inclined surface. The movement of the push rod 141 squeezes the push plate 12 to move through the first inclined surface. One side of the upper part of the limiting block 147 close to the push rod 141 is provided with a second inclined surface. The movement of the push rod 141 squeezes the limiting block 147 to move downward through the second inclined surface.

[0037] A clamping groove is formed on the surface of the push rod 141. A first telescopic elastic rod 148 is provided between the limiting frame 146 and the inner wall of the limiting groove. The first telescopic elastic rod 148 can drive the limiting frame 146 to reset. A second telescopic elastic rod 149 is provided between the limiting block 147 and the limiting frame 146. The second telescopic elastic rod 149 can drive the limiting block 147 to reset.

[0038] The surface of the partition frame 5 is provided with a sealing device for improving the docking tightness between the connecting pipe 6 and the communicating pipe 7. The sealing device includes a receiving frame 151 and a sealing frame 152. The receiving frame 151 is fixedly installed on one side of the partition frame 5 close to the fixing member 8, and the sealing frame 152 is slidably installed on one side of the partition frame 5 close to the fixing member 8. The sealing device further includes a T-shaped rod 153, an L-shaped plate 154, and a receiving rod 155. When the lifting rod 143 moves downward, it drives the T-shaped rod 153 to move downward. The downward movement of the T-shaped rod 153 drives the sealing frame 152 to move downward. The T-shaped rod 153 is slidably installed on one side of the partition frame 5 close to the fixing member 8. The L-shaped plate 154 slidably penetrates through the upper and lower inner and outer walls of the sealing frame 152. The receiving rod 155 is fixedly installed above the sealing frame 152. The sealing frame 152 moves downward to contact the receiving frame 151, and under its action, the connection between the connecting pipe 6 and the communicating pipe 7 is sealed, preventing leakage under the action of water pressure during the use of the medicine and ensuring the stability of the pressure and flow rate in the pipeline.

[0039] The lower part of the T-shaped rod 153 is fixedly connected to the lifting rod 143, and the end of the T-shaped rod 153 away from the lifting rod 143 is fixedly connected to the sealing frame 152. The downward movement of the T-shaped rod 153 drives the sealing frame 152 to move downward, and the sealing frame 152 moves downward to contact the receiving frame 151.

[0040] The L-shaped plate 154 is slidably connected to the outer wall of the partition frame 5. The receiving rod 155 slidably penetrates through the upper and lower walls of the L-shaped plate 154. A second spring 156 is arranged between the receiving rod 155 and the L-shaped plate 154, and the second spring 156 can drive the L-shaped plate 154 to reset.

[0041] When the present embodiment is working, the rotating protection plate 9 drives the fixing block 144 to rotate around the fixing piece 8 at the same time, and the fixing block 144 drives one end of the connecting rod 145 to move downward when the fixing block 144 rotates, and one end of the connecting rod 145 moves downward and drives the lifting rod 143 to move downward through the other end, and the lifting rod 143 moves downward and drives one end of the connecting rod 142 to move downward, and one end of the connecting rod 142 moves downward and drives the pushing rod 141 to move in the direction close to the pushing plate 12 through the other end, and the pushing rod 141 moves to contact and squeeze the pushing plate 12 to move in the direction away from the fixing plate 11, and the pushing plate 12 moves to contact and push the medicine tank 2 3 to move, and the movement of the medicine tank 2 3 drives the docking pipe 6 to move, so that the docking of the docking pipe 6 and the connecting pipe 7 during the installation process is more accurate, and at the same time When the push rod 141 moves, it contacts and squeezes the limit block 147 to move downward, and the limit block 147 moves downward to squeeze the telescopic elastic rod 149 to contract. After the telescopic elastic rod 149 contracts, it resets to limit the push rod 141 and fix the medicine tank 3, so as to avoid the medicine tank 3 from shaking during the movement of the shell 1, which in turn causes the connection between the docking tube 6 and the connecting tube 7 to loosen, thereby improving the stability of the shell 1 during operation. At the same time, when disassembly is required, the limit frame 146 is moved away from the limit block 147, and the movement of the limit frame 146 drives the limit block 147 to move, and the limit block 147 moves to release the limit on the push rod 141, and then the limit on the medicine tank 23 is released by rotating the protective plate 9 upward, so as to facilitate the replacement of the medicine tank 23 and improve the efficiency of maintenance.

[0042] When the lifting rod 143 moves downward, it drives the T-shaped rod 153 to move downward, and the T-shaped rod 153 moves downward, driving the sealing frame 152 to move downward. The sealing frame 152 moves downward to contact the receiving frame 151, and seals the connection between the butt pipe 6 and the connecting pipe 7 to avoid leakage under the action of water pressure during the use of the medicine, and ensures that the pressure and flow in the pipeline remain stable, avoiding pressure fluctuations or flow abnormalities caused by the unsealed connection, extending the service life of the equipment and reducing the subsequent maintenance cost. At the same time, the sealing frame 152 drives the L-shaped plate 154 to move downward during the downward movement. The L-shaped plate 154 moves downward to contact the docking tube 6 and moves upward under its action. The L-shaped plate 154 moves upward to squeeze the No. 2 spring 156 to contract. In the process of replacing the medicine tank 2 3, the docking tube 6 is separated from the contact with the connecting tube 7 to release the restriction on the L-shaped plate 154. After the restriction is released, the L-shaped plate 154 moves downward under the action of the No. 2 spring 156. The L-shaped plate 154 moves downward to close the connecting tube 7, thereby preventing foreign objects from entering the interior of the partition frame 5 through the connecting tube 7 during the process of replacing the medicine tank 2 3 and causing pollution to the internal medicine, thereby reducing the subsequent maintenance cost.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-dose self-controlled analgesia device based on the modification of a chemotherapy pump, comprising a housing (1), a medicine tank 1 (2), a medicine tank 2 (3) and a pump body (4), wherein a partition frame (5) is fixedly installed inside the housing (1), characterized in that: Also includes: A disassembly device, the disassembly device comprising a butt joint pipe (6), a connecting pipe (7), a fixing member (8), a rotating protective plate (9), a baffle (10), a fixing plate (11) and a pushing plate (12), the butt joint pipe (6) fixedly passes through the inner and outer walls of the second medicine tank (3), the connecting pipe (7) fixedly passes through the inner and outer walls of the partition frame (5), the fixing member (8) is fixedly mounted on the surface of the partition frame (5), the rotating protective plate (9) is rotatably mounted inside the fixing member (8), the baffle (10) is fixedly mounted on the inner wall of the outer shell (1), the fixing plate (11) is fixedly mounted on the bottom of the inner wall of the outer shell (1), the pushing plate (12) is slidably mounted on the surface of the fixing plate (11), and the pump body (4) is connected with the first medicine tank (2) and the second medicine tank (3) through a hose; The surface of the fixing plate (11) is provided with a limiting device for improving the stability of the butt joint between the butt joint pipe (6) and the connecting pipe (7), and the limiting device comprises a pushing rod (141) and a connecting rod (142), wherein the pushing rod (141) is slidably mounted above the fixing plate (11), and the connecting rod (142) is rotatably mounted inside the pushing rod (141); The surface of the partition frame (5) is provided with a sealing device for improving the sealing performance of the butt joint between the butt joint pipe (6) and the connecting pipe (7), and the sealing device comprises a receiving frame (151) and a sealing frame (152), wherein the receiving frame (151) is fixedly mounted on a side of the partition frame (5) close to the fixing member (8), and the sealing frame (152) is slidably mounted on a side of the partition frame (5) close to the fixing member (8).

2. According to claim 1, a large-dose self-controlled analgesia device based on chemotherapy pump modification is characterized in that: A sliding groove is provided on the surface of the fixing plate (11), a first spring (13) is provided between the pushing plate (12) and the inner wall of the sliding groove, and the inner wall of the connecting pipe (7) is configured to be conical.

3. The high-dose self-controlled analgesia device based on chemotherapy pump modification according to claim 2 is characterized in that: The surface of the baffle plate (10) is configured as arc surface one, and the side of the push plate (12) away from the fixed plate (11) is configured as arc surface two.

4. The high-dose self-controlled analgesia device based on chemotherapy pump modification according to claim 3 is characterized in that: The limiting device also includes a lifting rod (143), a fixed block (144), a connecting rod (145), a limiting frame (146) and a limiting block (147); the lifting rod (143) is slidably mounted on a side of the partition frame (5) close to the fixed member (8); the fixed block (144) is fixedly mounted below the rotating protective plate (9); the connecting rod (145) is rotatably mounted inside the fixed block (144); a limiting groove is provided on the surface of the fixed plate (11); the limiting frame (146) is slidably mounted inside the limiting groove; and the limiting block (147) is slidably mounted inside the limiting frame (146).

5. The high-dose self-controlled analgesia device based on chemotherapy pump modification according to claim 4 is characterized in that: One end of the connecting rod (142) away from the pushing rod (141) is rotatably connected to the lifting rod (143), and one end of the connecting rod (145) away from the rotating protective plate (9) is rotatably connected to the lifting rod (143).

6. The high-dose automatic analgesia device based on chemotherapy pump modification according to claim 5 is characterized in that: The side of the push rod (141) close to the push plate (12) is set as inclined surface 1, and the side above the limit block (147) close to the push rod (141) is set as inclined surface 2.

7. The high-dose self-controlled analgesia device based on chemotherapy pump modification according to claim 6, characterized in that: A slot is provided on the surface of the push rod (141), a telescopic spring rod 1 (148) is provided between the limit frame (146) and the inner wall of the limit slot, and a telescopic spring rod 2 (149) is provided between the limit block (147) and the limit frame (146).

8. The high-dose self-controlled analgesia device based on chemotherapy pump modification according to claim 7 is characterized in that: The sealing device further comprises a T-shaped rod (153), an L-shaped plate (154) and a receiving rod (155); the T-shaped rod (153) is slidably mounted on a side of the partition frame (5) close to the fixing member (8); the L-shaped plate (154) slidably penetrates the upper inner and outer walls of the sealing frame (152); and the receiving rod (155) is fixedly mounted on the upper side of the sealing frame (152).

9. The high-dose self-controlled analgesia device based on chemotherapy pump modification according to claim 8, characterized in that: The lower part of the T-shaped rod (153) is fixedly connected to the lifting rod (143), and one end of the T-shaped rod (153) away from the lifting rod (143) is fixedly connected to the sealing frame (152).

10. The high-dose self-controlled analgesia device based on chemotherapy pump modification according to claim 9, characterized in that: The L-shaped plate (154) is slidably connected to the outer wall of the partition frame (5), the receiving rod (155) slidably penetrates the upper and lower walls of the L-shaped plate (154), and a second spring (156) is provided between the receiving rod (155) and the L-shaped plate (154).

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