Special anti-leakage infusion set for infusion of chemotherapy drugs

Abstract

The present invention discloses an anti-leakage infusion set for special infusion of chemotherapy drugs, which relates to the technical field of infusion tubes and includes a catheter. An accommodation mechanism for protecting the infusion connector of the catheter is arranged outside the catheter. A fixing mechanism for preventing the catheter from moving is also arranged at the exposed part of the catheter. The accommodation mechanism includes an outer shell sleeved on the exposed part of the catheter. A top cover is rotatably connected to the top of the outer shell. A rotating plate is rotatably connected inside the outer shell. A pressing plate is fixedly connected to the side of the top cover. By providing the accommodation mechanism, when the catheter is not in use, the top cover is rotated to bend and accommodate the infusion connector of the catheter inside the outer shell, so that the infusion connector of the catheter is properly protected, reducing the potential damage to the catheter caused by external extrusion. At the same time, the pressing plate can press down the infusion connector on the catheter to cut off the connection between the catheter and the outside. The pressed-down pressing plate can provide a physical barrier to prevent microorganisms in the air from entering the catheter system, thereby reducing the risk of infection.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion tubes, and specifically to a leakage-proof infusion set for special infusion of chemotherapy drugs. Background Art

[0002] An infusion set for special use with chemotherapy drugs is an infusion set specifically designed for safely and efficiently delivering chemotherapy drugs. The design of such infusion sets takes into account the special properties of chemotherapy drugs. During the infusion of chemotherapy drugs, leakage may occur, which can cause varying degrees of damage to the skin, subcutaneous tissue, and blood vessels, increasing the pain of patients. Therefore, it is crucial to select an infusion set that can meet the treatment needs and is relatively safe. Common chemotherapy infusion sets include central venous catheters (CVCs), peripherally inserted central catheters (PICCs), and implanted venous access ports (PORTs).

[0003] Regarding PICCs, PICCs are a catheterization technique that punctures a peripheral vein and places the tip of the catheter in the superior vena cava or usually in the middle and lower 1 / 3 of the superior vena cava. The PICCs are inserted into the body, and the exposed part of the catheter is fixed to the patient's arm through a catheter fixation device such as a StatLock. An infusion adapter is also provided at the exposed part of the catheter, and the infusion adapter of the catheter is directly exposed to the outside. When the patient's arm moves, the infusion adapter may shift or even pull the catheter out of the arm together, affecting the treatment effect.

[0004] Therefore, the present invention proposes a leakage-proof infusion set for special infusion of chemotherapy drugs to make up for and improve the deficiencies of the existing technology. Summary of the Invention

[0005] In view of the above problems, the present invention provides a leakage-proof infusion set for special infusion of chemotherapy drugs, which can effectively solve the problem that the infusion catheter is directly exposed in the existing technology. To achieve the above object, the embodiments of the present application provide the following technical solutions:

[0006] The present invention discloses a leakage-proof infusion set for special infusion of chemotherapy drugs, including a catheter. A receiving mechanism for protecting the infusion adapter of the catheter is provided outside the catheter, and a fixing mechanism for preventing the catheter from moving is also provided at the exposed part of the catheter;

[0007] The receiving mechanism includes an outer housing sleeved on the exposed part of the catheter. A top cover is rotatably connected to the top of the outer housing. A rotating plate is rotatably connected inside the outer housing. A pressing plate is fixedly connected to the side of the top cover. A closing mechanism for blocking the infusion adapter of the catheter is provided inside the outer housing, and a collecting mechanism for absorbing the residual liquid of the catheter is also provided inside the closing mechanism.

[0008] Further, the storage mechanism further includes an arc-shaped groove formed on the side surface of the outer housing. A first hinge seat is slidably connected in the arc-shaped groove. One end of the first hinge seat is rotatably connected to the side surface of the rotating plate, and the other end of the first hinge seat is fixedly connected to a guide rod. A second hinge seat is rotatably connected to the outside of the outer housing. The guide rod slidably penetrates through the second hinge seat, and a first spring is sleeved on the outside of the guide rod. The first spring is located on the outside of the guide rod between the first hinge seat and the second hinge seat.

[0009] Further, the closing mechanism includes an inner housing fixedly connected inside the outer housing. One side of the top of the inner housing is rotatably connected to a rotating shaft. One end of the rotating shaft is fixedly connected to a semi-circular lower cover plate. The lower cover plate matches the opening at the top of the inner housing. The side surface of the top cover is fixedly connected to an upper cover plate. The upper cover plate and the lower cover plate match each other. Both the upper cover plate and the lower cover plate are provided with notches near the conduit.

[0010] Further, a gear is fixedly connected to the outside of the rotating shaft. A rack is slidably connected to the outside of the inner housing. The rack meshes with the gear. A push rod is fixedly connected to the top of the rack. A second spring is fixedly connected to the bottom of the rack. The end of the second spring away from the rack is fixedly connected to the outer housing.

[0011] Further, the collection mechanism includes a collection shell that is horizontally slidably connected inside the inner housing. Plug rods are symmetrically and fixedly connected to both sides of the collection shell. A jack for accommodating the plug rods is formed on the side surface of the inner housing. A through hole is formed on the side wall of one of the jacks. A third spring is fixedly connected inside the jack. A receiving groove is formed on the side surface of one of the plug rods. A fourth spring is arranged inside the receiving groove. One end of the fourth spring is fixedly connected to the inner wall of the receiving groove, and the other end of the fourth spring is fixedly connected to a ball. The ball matches the through hole on the side wall of the jack.

[0012] Further, the collection mechanism further includes a deflection plate rotatably connected inside the outer housing. A push plate is fixedly connected to the bottom of the deflection plate. The push plate is attached to the outer wall of the jack. An L-shaped rod is fixedly connected to the end of the rotating shaft away from the lower cover plate.

[0013] Further, the fixing mechanism includes a mounting plate fixedly connected to the side surface of the outer housing. Two groups of arc-shaped plates are symmetrically and rotatably connected to the mounting plate. Each group of arc-shaped plates is fixedly connected by a connecting rod. A magic tape is fixedly connected to the end of the arc-shaped plate away from the mounting plate. An adjusting mechanism is arranged on the side of the mounting plate away from the outer housing. A limiting mechanism for preventing the exposed part of the conduit from moving is also arranged inside the outer housing.

[0014] Furthermore, the adjusting mechanism includes a main airbag fixedly connected to the side of the mounting plate away from the outer casing. On each side where the two arc-shaped plates approach each other, a secondary airbag is fixedly connected. The main airbag and the two secondary airbags are interconnected through a hose.

[0015] Furthermore, the adjusting mechanism further includes an air pump fixedly connected inside the cavity of the mounting plate. The output end of the air pump is rotatably connected to a second connecting rod. One end of the second connecting rod away from the output end of the air pump is rotatably connected to a first connecting rod. One end of the first connecting rod away from the second connecting rod is fixedly connected to a rotating rod, and the rotating rod is fixedly connected to the rotating plate.

[0016] Furthermore, the limiting mechanism includes moving plates symmetrically and slidably connected inside the outer casing. A partition is fixedly connected to the side of each moving plate. A second airbag is fixedly connected between the partition and the outer casing. The second airbag and the main airbag are interconnected through another hose.

[0017] Beneficial effects:

[0018] 1. By providing a storage mechanism in this device, when the catheter is not in use, the top cover is rotated to bend and store the infusion connector outside the catheter inside the outer casing, thereby properly protecting the infusion connector, reducing potential damage to the catheter caused by external extrusion. At the same time, the extrusion plate can press down the exposed part of the catheter to cut off the connection between the catheter and the outside. The pressed-down extrusion plate can provide a physical barrier to prevent microorganisms in the air from entering the catheter system, thereby reducing the risk of infection.

[0019] 2. By providing a sealing mechanism in this device, when the top cover rotates, the infusion connector of the catheter is wrapped between the upper cover plate and the lower cover plate, thereby physically isolating the infusion connector of the catheter from the outside. Through physical isolation, the infusion connector is completely enclosed in a clean and sterile environment, effectively preventing bacteria or dust in the air from contacting the catheter port, reducing the risk of infection. At the same time, the clamping effect of the upper cover plate and the lower cover plate can firmly fix the infusion connector of the catheter, reducing the possibility of catheter displacement or partial extraction caused by accidental pulling or other external forces.

[0020] 3. By providing a collection mechanism in this device, after the upper cover plate and the lower cover plate wrap the infusion connector of the catheter, the liquid medicine that may remain in the infusion connector of the catheter drips into the lower cover plate. Finally, the lower cover plate rotates to let the collected liquid medicine enter the collection shell. Through the design of the collection shell, the liquid medicine dripping from the infusion connector of the catheter can be effectively captured and stored, avoiding the dripping liquid medicine from contacting the external environment or the patient's skin and reducing the risk of accidental exposure.

[0021] 4. The device is provided with a fixing mechanism and a limiting mechanism. The exposed part of the infusion catheter is restricted inside the outer shell by two moving plates, preventing movement between the exposed part of the infusion catheter and the outer shell. When using the catheter, the round end of the magic tape is brought into contact with the prickly end of the magic tape, so that the outer shell and the exposed part of the infusion catheter inside it are fixed on the patient's body surface. Protected by the outer shell, it can prevent the exposed part of the infusion catheter from being damaged by rubbing against the patient's clothes during use.

[0022] 5. The device is provided with an adjusting mechanism. When fixing the outer shell on the patient's arm, the main airbag and the auxiliary airbag are used to fill the gap between the patient's arm and the outer shell. The main airbag and the auxiliary airbag can be inflated and adjusted according to the specific shape of the patient's arm to ensure that the outer shell fits tightly without pressing on the skin, thus improving the wearing comfort. At the same time, the airbag can provide a more uniform pressure distribution, avoiding the influence on blood vessels caused by excessive local pressure and helping to maintain the stability of the catheter position. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a three-dimensional structure diagram of the first perspective of the present invention.

[0025] Figure 2 It is a three-dimensional structure diagram of the second perspective of the present invention.

[0026] Figure 3 It is a three-dimensional structure diagram of the storage mechanism in the present invention.

[0027] Figure 4 In the present invention Figure 3 The enlarged structure diagram of part A.

[0028] Figure 5 It is a three-dimensional structure diagram of the closing mechanism in the present invention.

[0029] Figure 6 It is a three-dimensional structure diagram of the collection mechanism in the present invention.

[0030] Figure 7 It is a longitudinal sectional view of the outer shell in the present invention.

[0031] Figure 8 It is a three-dimensional structure diagram of the fixing mechanism in the present invention.

[0032] Figure 9In the present invention Figure 8 is an enlarged view of the structure at position B in the figure.

[0033] Figure 10 is a sectional view of the limit mechanism in the present invention.

[0034] Figure 11 is a sectional view of the insertion rod in the present invention.

[0035] Figure 12 is a schematic connection diagram of the gear and the rack in the present invention.

[0036] The reference numerals in the figure respectively represent: 10, catheter; 20, storage mechanism; 201, outer housing; 202, top cover; 203, rotating plate; 204, arc groove; 205, first hinge seat; 206, second hinge seat; 207, guide rod; 208, first spring; 209, pressing plate; 30, closing mechanism; 301, inner housing; 302, upper cover plate; 303, lower cover plate; 304, notch; 305, rotating shaft; 306, gear; 307, rack; 308, push rod; 309, second spring; 40, collection mechanism; 401, collection shell; 402, insertion rod; 403, insertion hole; 404, accommodation groove; 405, third spring; 406, ball; 407, fourth spring; 408, L-shaped rod; 409, deflecting plate; 410, push plate; 50, fixing mechanism; 501, mounting plate; 502, arc plate; 503, connecting rod; 504, magic tape; 60, adjusting mechanism; 601, main airbag; 602, auxiliary airbag; 603, air pump; 604, rotating rod; 605, first connecting rod; 606, second connecting rod; 70, limit mechanism; 701, second airbag; 702, partition plate; 703, moving plate. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] The present invention will be further described below with reference to the embodiments.

[0039] Refer to Figures 1 to 12 , the special anti-leakage infusion set for infusing chemotherapy drugs in this embodiment includes a catheter 10. A storage mechanism 20 for protecting the end of the catheter 10 is arranged outside the catheter 10, and a fixing mechanism 50 for preventing the catheter 10 from moving is also arranged outside the end of the catheter 10.

[0040] Refer toFigure 1 , Figure 2 , Figure 3 and Figure 4 , the storage mechanism 20 includes a housing 201 sleeved on the end of the catheter 10. A top cover 202 is rotatably connected to the top of the housing 201. A rotating plate 203 is rotatably connected inside the housing 201. A pressing plate 209 is fixedly connected to the side of the top cover 202. A closing mechanism 30 for blocking the end of the catheter 10 is arranged inside the housing 201, and a collecting mechanism 40 for absorbing the residual liquid of the catheter 10 is further arranged inside the closing mechanism 30.

[0041] The storage mechanism 20 further includes an arc-shaped groove 204 opened on the side of the housing 201. A first hinge seat 205 is slidably connected inside the arc-shaped groove 204. One end of the first hinge seat 205 is rotatably connected to the side of the rotating plate 203. The other end of the first hinge seat 205 is fixedly connected to a guide rod 207. A second hinge seat 206 is rotatably connected to the outside of the housing 201. The guide rod 207 slidably penetrates through the second hinge seat 206. A first spring 208 is sleeved on the outside of the guide rod 207, and the first spring 208 is located on the outside of the guide rod 207 between the first hinge seat 205 and the second hinge seat 206.

[0042] During specific operation, when the infusion joint of the catheter 10 is not in use, the top cover 202 can be rotated. The top cover 202 drives the end of the catheter 10 to bend, so as to bend and store the infusion joint of the catheter 10 inside the housing 201. The infusion joint of the catheter 10 is properly protected, reducing the potential damage caused by external extrusion to the catheter 10. At the same time, the top cover 202 drives the pressing plate 209 to press down on the outside of the external part of the catheter 10. The pressing plate 209 squeezes the catheter 10 so that the catheter 10 is blocked, cutting off the connection between the catheter 10 and the outside. The pressing-down pressing plate 209 can provide a physical barrier to prevent microorganisms in the air from entering the catheter 10, thereby reducing the risk of infection.

[0043] When using the infusion joint of the catheter 10, after opening the top cover 202, under the elastic force of the first spring 208, the first hinge seat 205 moves away from the second hinge seat 206, so that the rotating plate 203 rotates 90 degrees along the arc-shaped groove 204. The rotating rotating plate 203 pushes out the infusion joint of the catheter 10 from the housing 201, so as to continue using the infusion joint of the catheter 10.

[0044] Refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 12, the closing mechanism 30 includes an inner housing 301 fixedly connected inside the outer housing 201. One side of the top of the inner housing 301 is rotatably connected to a rotating shaft 305. One end of the rotating shaft 305 is fixedly connected to a semi-circular lower cover plate 303. The lower cover plate 303 matches the top opening of the inner housing 301. The side of the top cover 202 is fixedly connected to an upper cover plate 302. The upper cover plate 302 and the lower cover plate 303 match each other. Both the upper cover plate 302 and the lower cover plate 303 are provided with notches 304 near the catheter 10.

[0045] A gear 306 is fixedly connected to the outside of the rotating shaft 305. A rack 307 is slidably connected to the outside of the inner housing 301. The rack 307 meshes with the gear 306. The top of the rack 307 is fixedly connected to a push rod 308. The bottom of the rack 307 is fixedly connected to a second spring 309. One end of the second spring 309 away from the rack 307 is fixedly connected to the outer housing 201.

[0046] During specific operation, when the top cover 202 is closing, the side of the top cover 202 touches the push rod 308 and pushes the push rod 308 downward. The push rod 308 is used to drive the rack 307 to move downward synchronously. The rack 307 drives the gear 306 to rotate. The gear 306 drives the lower cover plate 303 to rotate 180 degrees through the rotating shaft 305. The flipped lower cover plate 303 and the upper cover plate 302 on the side of the top cover 202 wrap the infusion connector of the catheter 10, thereby physically isolating the infusion connector of the catheter 10 from the outside. Through physical isolation, the infusion connector of the catheter 10 is completely enclosed in a clean and sterile environment, effectively preventing bacteria or dust in the air from contacting the port of the catheter 10 and reducing the risk of infection.

[0047] When opening the top cover 202, under the upward push of the second spring 309, the rack 307 drives the gear 306 to rotate in the reverse direction. The reversely rotating gear 306 drives the lower cover plate 303 to rotate 180 degrees through the rotating shaft 305, so that the liquid medicine dripping in the lower cover plate 303 falls into the collection mechanism 40, avoiding the leakage of the liquid medicine to the outside and affecting the patient.

[0048] Refer to Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 11, the collection mechanism 40 includes a collection shell 401 slidably connected horizontally inside the shell 301. On both sides of the collection shell 401, there are symmetrically and fixedly connected insertion rods 402. On the side of the inner shell 301, there are insertion holes 403 for accommodating the insertion rods 402. A through hole is provided on the side wall of one of the insertion holes 403. Inside the insertion hole 403, there is a fixedly connected third spring 405. On the side of one of the insertion rods 402, there is a receiving groove 404. Inside the receiving groove 404, there is a fourth spring 407. One end of the fourth spring 407 is fixedly connected to the inner wall of the receiving groove 404, and the other end of the fourth spring 407 is fixedly connected to a ball 406. The ball 406 is matched with the through hole on the side wall of the insertion hole 403.

[0049] The collection mechanism 40 further includes a deflecting plate 409 rotatably connected inside the outer shell 201. At the bottom of the deflecting plate 409, there is a fixedly connected push plate 410. The push plate 410 is attached to the outer wall of the insertion hole 403. At the end of the rotating shaft 305 away from the lower cover plate 303, there is a fixedly connected L-shaped rod 408.

[0050] During specific operation, when the top cover 202 is closed, after the rotating shaft 305 rotates 180 degrees, the rotating shaft 305 drives the L-shaped rod 408 to push the deflecting plate 409 to rotate. The rotating deflecting plate 409 drives the push plate 410 to push the ball 406 to move into the receiving groove 404, so that the ball 406 disengages from the through hole on the side wall of the insertion hole 403. Then, the third spring 405 pushes the insertion rod 402 to pop out of the insertion hole 403, and the insertion rod 402 drives the collection shell 401 to pop out of the inner shell 301. At this time, the liquid medicine collected in the collection shell 401 can be checked and cleaned in time according to the collected liquid medicine situation. After cleaning, the collection shell 401 is inserted into the inner shell 301 again. At this time, the ball 406 enters the through hole on the side wall of the insertion hole 403 under the push of the fourth spring 407, realizing the stable connection between the collection shell 401 and the inner shell 301.

[0051] Refer to Figure 1 、 Figure 2 and Figure 8 , the fixing mechanism 50 includes a mounting plate 501 fixedly connected to the side of the outer shell 201. There are two groups of arc-shaped plates 502 symmetrically and rotatably connected to the mounting plate 501. Between each group of arc-shaped plates 502, there is a fixedly connected connecting rod 503. At the end of the arc-shaped plate 502 away from the mounting plate 501, there is a fixedly connected magic tape 504. On the side of the mounting plate 501 away from the outer shell 201, there is an adjusting mechanism 60. Inside the outer shell 201, there is also a limiting mechanism 70 to prevent the end of the catheter 10 from moving.

[0052] During specific operation, when fixing the exposed part of the catheter 10 on the patient's arm, the round hair end of the magic tape 504 is brought into contact with the prickly hair end of the magic tape 504, so that the outer shell 201 and the infusion catheter 10 inside it are fixed on the patient's body surface.

[0053] Refer to Figure 1 、 Figure 2 、 Figure 8 and Figure 9 ,the adjusting mechanism 60 includes a main airbag 601 fixedly connected to the side of the mounting plate 501 away from the outer housing 201. On the side where the two arc-shaped plates 502 approach each other, a secondary airbag 602 is fixedly connected. The main airbag 601 and the two secondary airbags 602 are interconnected through a hose.

[0054] The adjusting mechanism 60 further includes an air pump 603 fixedly connected inside the cavity of the mounting plate 501. The output end of the air pump 603 is rotatably connected to a second connecting rod 606. One end of the second connecting rod 606 away from the output end of the air pump 603 is rotatably connected to a first connecting rod 605. One end of the first connecting rod 605 away from the second connecting rod 606 is fixedly connected to a rotating rod 604, and the rotating rod 604 is fixedly connected to the rotating plate 203.

[0055] During specific operation, first reciprocally rotate the arc-shaped plate 502 to drive the rotating rod 604 to reciprocally rotate, and use the first connecting rod 605 and the second connecting rod 606 to drive the input end of the air pump 603 to reciprocally move, thereby filling air into the main airbag 601 and the secondary airbags 602. Use the main airbag 601 and the secondary airbags 602 to fill the gap between the patient's arm and the outer housing 201. The main airbag 601 and the secondary airbags 602 can be inflated and adjusted according to the specific shape of the patient's arm to ensure that the outer housing 201 fits closely without pressing on the skin, thereby improving the wearing comfort.

[0056] Refer to Figure 1 、 Figure 2 、 Figure 8 、 Figure 9 and Figure 10 ,the limiting mechanism 70 includes moving plates 703 symmetrically and slidably connected inside the outer housing 201. A partition plate 702 is fixedly connected to the side of each moving plate 703. A second airbag 701 is fixedly connected between the partition plate 702 and the outer housing 201. The second airbag 701 is interconnected with the main airbag 601 through another hose.

[0057] During specific operation, when inflating the main airbag 601 and the secondary airbags 602, the second airbag 701 is synchronously filled with air, causing the second airbag 701 to expand. The expanded second airbag 701 pushes the two partition plates 702 towards the conduit 10. The partition plate 702 close to the conduit 10 clamps the conduit 10 through the moving plate 703, preventing the conduit 10 from moving relative to the outer housing 201.

[0058] Working principle:

[0059] During use, the exposed part of the catheter 10 is fixed to the patient's arm through the fixing mechanism 50 to prevent the infusion connector of the infusion catheter 10 from being damaged by swinging during daily use. In cooperation with the limiting mechanism 70, the exposed part of the catheter 10 is clamped by the moving plate 703 to prevent the catheter 10 from moving between the outer shell 201. Through the adjusting mechanism 60, the main airbag 601 and the auxiliary airbag 602 are used to fill the gap between the patient's arm and the outer shell 201. The main airbag 601 and the auxiliary airbag 602 can be inflated and adjusted according to the specific shape of the patient's arm to ensure that the outer shell 201 fits closely without pressing on the skin, thus improving the wearing comfort. When the infusion connector of the catheter 10 is not in use, the infusion connector of the catheter 10 is bent and stored in the storage mechanism 20, so that the infusion connector of the catheter 10 is properly protected, reducing the potential damage caused by external extrusion to the infusion connector of the catheter 10. At the same time, the storage mechanism 20 drives the closing mechanism 30 to isolate the infusion connector of the catheter 10 from the outside world. After isolating the infusion connector of the catheter 10, the collecting mechanism 40 is used to collect the residual liquid medicine in the infusion connector of the catheter 10 to prevent the liquid medicine from contacting the external environment or the patient's skin.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The special anti-leakage infusion set for infusing chemotherapy drugs is characterized in that, It includes a catheter (10), and a receiving mechanism (20) for protecting the end of the catheter (10) is provided outside the catheter (10). A fixing mechanism (50) for preventing the catheter (10) from moving is also provided outside the end of the catheter (10). The receiving mechanism (20) includes a housing body (201) sleeved on the end of the catheter (10). A top cover (202) is rotatably connected to the top of the housing body (201). A rotating plate (203) is rotatably connected inside the housing body (201). An extrusion plate (209) is fixedly connected to the side of the top cover (202). A closing mechanism (30) for blocking the end of the catheter (10) is provided inside the housing body (201). A collecting mechanism (40) for absorbing the residual liquid of the catheter (10) is also provided inside the closing mechanism (30). The receiving mechanism (20) further includes an arc-shaped groove (204) opened on the side of the housing body (201). A first hinge seat (205) is slidably connected in the arc-shaped groove (204). One end of the first hinge seat (205) is rotatably connected to the side of the rotating plate (203). The other end of the first hinge seat (205) is fixedly connected to a guide rod (207). A second hinge seat (206) is rotatably connected to the outside of the housing body (201). The guide rod (207) slidably penetrates through the second hinge seat (206). A first spring (208) is sleeved on the outside of the guide rod (207). The first spring (208) is located on the outside of the guide rod (207) between the first hinge seat (205) and the second hinge seat (206). The closing mechanism (30) includes an inner housing body (301) fixedly connected inside the housing body (201). A rotating shaft (305) is rotatably connected to one side of the top of the inner housing body (301). A semi-circular lower cover plate (303) is fixedly connected to one end of the rotating shaft (305). The lower cover plate (303) matches the opening at the top of the inner housing body (301). An upper cover plate (302) is fixedly connected to the side of the top cover (202). The upper cover plate (302) and the lower cover plate (303) match each other. Notches (304) are opened on the sides of the upper cover plate (302) and the lower cover plate (303) close to the catheter (10). A gear (306) is fixedly connected to the outside of the rotating shaft (305). A rack (307) is slidably connected to the outside of the inner housing body (301). The rack (307) meshes with the gear (306). A push rod (308) is fixedly connected to the top of the rack (307). A second spring (309) is fixedly connected to the bottom of the rack (307). One end of the second spring (309) away from the rack (307) is fixedly connected to the housing body (201). The collection mechanism (40) includes a collection shell (401) horizontally slidably connected inside the inner shell (301). On both sides of the collection shell (401), there are symmetrically and fixedly connected insertion rods (402). On the side of the inner shell (301), there are insertion holes (403) for accommodating the insertion rods (402). A through hole is provided on the side wall of one of the insertion holes (403). Inside the insertion hole (403), there is a fixedly connected third spring (405). On the side of one of the insertion rods (402), there is a receiving groove (404). Inside the receiving groove (404), there is a fourth spring (407). One end of the fourth spring (407) is fixedly connected to the inner wall of the receiving groove (404), and the other end of the fourth spring (407) is fixedly connected to a ball (406). The ball (406) matches the through hole on the side wall of the insertion hole (403). The fixing mechanism (50) includes a mounting plate (501) fixedly connected to the side of the outer shell (201). There are two groups of arc-shaped plates (502) symmetrically rotatably connected to the mounting plate (501). Between each group of arc-shaped plates (502), there is a fixedly connected connecting rod (503). At the end of the arc-shaped plate (502) away from the mounting plate (501), there is a fixedly connected magic tape (504). On the side of the mounting plate (501) away from the outer shell (201), there is an adjusting mechanism (60). Inside the outer shell (201), there is also a limiting mechanism (70) for preventing the end of the conduit (10) from moving. The limiting mechanism (70) includes moving plates (703) symmetrically slidably connected inside the outer shell (201). On the side of each moving plate (703), there is a fixedly connected partition plate (702). Between the partition plate (702) and the outer shell (201), there is a fixedly connected second airbag (701). The second airbag (701) and the main airbag (601) are interconnected through another hose.

2. The anti-leakage infusion set for special use in infusing chemotherapeutic drugs according to claim 1, wherein The collection mechanism (40) further includes a deflecting plate (409) rotatably connected inside the outer shell (201). At the bottom of the deflecting plate (409), there is a fixedly connected pushing plate (410). The pushing plate (410) is attached to the outer wall of the insertion hole (403). One end of the rotating shaft (305) away from the lower cover plate (303) is fixedly connected to an L-shaped rod (408).

3. The anti-leakage infusion set for special use in infusing chemotherapy drugs according to claim 1, characterized in that, The adjusting mechanism (60) includes a main airbag (601) fixedly connected to the side of the mounting plate (501) away from the outer shell (201). On the side where the two arc-shaped plates (502) are close to each other, there is a fixedly connected sub-airbag (602). The main airbag (601) and the two sub-airbags (602) are interconnected through hoses.

4. The anti-leakage infusion set for special use in infusing chemotherapy drugs according to claim 3, wherein, The adjusting mechanism (60) further includes an air pump (603) fixedly connected inside the cavity of the mounting plate (501). The output end of the air pump (603) is rotatably connected to a second connecting rod (606). One end of the second connecting rod (606) away from the output end of the air pump (603) is rotatably connected to a first connecting rod (605). One end of the first connecting rod (605) away from the second connecting rod (606) is fixedly connected to a rotating rod (604), and the rotating rod (604) is fixedly connected to the rotating plate (203).

Images