A drug delivery device for traditional Chinese medicine anorectal treatment

Abstract

The present invention belongs to the technical field of anorectal treatment instruments, and specifically relates to a drug delivery device for traditional Chinese medicine anorectal treatment, including a drug delivery device; the drug delivery device includes an intubation tube; the intubation tube is composed of an upper intubation tube and a lower intubation tube; a filling block is fixedly connected inside the upper intubation tube; a first expansion bladder is fixedly connected to the outer circumferential surface of the upper intubation tube; on the side of the lower intubation tube close to the upper intubation tube, a second expansion bladder is fixedly connected to the outer circumferential surface of the lower intubation tube; on the side of the lower intubation tube close to the upper intubation tube, a sealing disc is installed inside the lower intubation tube; a drive tube is rotatably connected to the filling block inside the upper intubation tube; a fixed block is fixedly connected below the sealing disc; a liquid inlet tube is installed on the sealing disc on the right side of the drive tube; a first air passage is opened in the inner wall of the upper intubation tube and the filling block; a second air passage is opened in the inner wall of the lower intubation tube; by setting the drug delivery device, the liquid medicine can be concentrated at the lesion site, enabling the lesion site to better absorb the liquid medicine.

Description

Technical Field

[0001] The present invention belongs to the technical field of anorectal treatment instruments, and specifically relates to a drug delivery device for traditional Chinese medicine anorectal treatment. Background Art

[0002] There are various traditional Chinese medicine anorectal treatment drug delivery methods, mainly including suppository application, ointment application, sitz bath with lotion, and anorectal injection. Anorectal injection mainly injects the liquid medicine into the anorectum through a drug delivery device, and the liquid medicine entering the anorectum will be absorbed by the anorectum, so as to achieve the treatment purpose.

[0003] However, during the process of injecting liquid medicine into the anorectum using a drug delivery device, the patient needs to contract the anus to prevent the liquid medicine from flowing out of the anus. According to relevant technologies, in order to solve the problem of liquid medicine flowing out, an inflatable ring is used to expand inside the anorectum, which can hinder the outflow of the liquid medicine.

[0004] Although the above method can prevent the liquid medicine from flowing out, due to the certain length of the anorectum and the certain fluidity of the liquid medicine, when the liquid medicine enters the anorectum, it will flow inside the anorectum. Therefore, the liquid medicine cannot be concentrated at the lesion site, and some of the liquid medicine far from the lesion site cannot be absorbed by the lesion, which will affect the absorption of the drug and the treatment effect. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve the above technical problems, the present invention provides a drug delivery device for traditional Chinese medicine anorectal treatment. By setting a drug delivery device, the liquid medicine can be concentrated at the lesion site, enabling the lesion site to better absorb the liquid medicine. The specific structure is as follows:

[0006] A drug delivery device for traditional Chinese medicine anorectal treatment, including a drug delivery device; the drug delivery device includes an intubation tube.

[0007] The intubation tube is composed of an upper intubation tube and a lower intubation tube. In the initial state, the upper intubation tube and the lower intubation tube are mutually attached; the top of the upper intubation tube is a hemispherical surface; a filling block is fixedly connected inside the upper intubation tube; a first expansion bladder is fixedly connected to the outer circumferential surface of the upper intubation tube.

[0008] The lower intubation tube is cylindrical; on the side of the lower intubation tube close to the upper intubation tube, a second expansion bladder is fixedly connected to the outer circumferential surface of the lower intubation tube.

[0009] On the side of the lower intubation tube close to the upper intubation tube, a sealing disc is installed inside the lower intubation tube; a drive tube is rotatably connected inside the filling block of the upper intubation tube, and the drive tube passes through the middle of the sealing disc and is slidably connected to the sealing disc.

[0010] The drive tube extends to a position below the lower intubation tube; taking the middle part of the drive tube as the demarcation line, threads are provided on the surface of the drive tube below the demarcation line.

[0011] A fixing block is fixedly connected below the sealing disc; a threaded groove is formed in the middle of the fixing block, and the driving pipe passes through the threaded groove and is in threaded engagement with the threaded groove;

[0012] An inlet pipe is installed on the sealing disc on the right side of the driving pipe, and the bottom of the inlet pipe passes through the fixing block and is slidably connected to the fixing block;

[0013] A first air passage is formed in the upper insertion tube and the inner wall of the filling block, and both ends of the first air passage are communicated with the driving pipe and the first expansion bladder respectively; a second air passage is formed in the inner wall of the lower insertion tube, and the second air passage is communicated with the second expansion bladder.

[0014] Preferably, the sealing disc includes a fixed disc and a rotating ring;

[0015] A fixed disc is arranged in the lower insertion tube; two connecting plates are fixedly connected to the bottom of the fixed disc, and the other ends of the connecting plates are fixedly connected to the inner wall of the lower insertion tube;

[0016] An annular block is fixedly connected to the outer peripheral surface of the fixed disc; a rotating ring is rotatably connected to the outer peripheral surface of the fixed disc, and the rotating ring is located above the connecting plate and is higher than the fixed disc as a whole;

[0017] An annular slideway is formed in the inner peripheral surface of the rotating ring, and the annular block slides in the annular slideway; both the driving pipe and the inlet pipe pass through the fixed disc;

[0018] The upper surface of the rotating ring is fixedly connected with uniformly arranged first paddles; two driving rods are installed in the inner wall of the rotating ring, and the straight line formed by the two driving rods is perpendicular to the fixing block and the connecting plate; the two driving rods extend to a position below the lower insertion tube.

[0019] Preferably, the two driving rods slide in the rotating ring;

[0020] Second paddles are fixedly connected to the tops of the two driving rods, and the two second paddles are arranged staggeredly with the first paddles;

[0021] An annular groove is formed in the filling block, and the first paddles and the second paddles are both located in the annular groove in the initial state.

[0022] Preferably, an outlet pipe is installed in the fixed disc on the left side of the driving pipe, and the bottom of the outlet pipe passes through the fixing block and is slidably connected to the fixing block;

[0023] Sealing blocks are fixedly connected to the tops of the inlet pipe and the outlet pipe, and the sealing blocks are in contact with the top of the fixed disc in the initial state;

[0024] Liquid ports are formed in the inner walls of the inlet pipe and the outlet pipe below the two sealing blocks; both the inlet pipe and the outlet pipe slide in the fixed disc.

[0025] Preferably, an annular layer is fixedly connected to the inner circumferential surface of the swivel ring, and the annular layer is located above the fixed disk and fits against the upper surface of the fixed disk;

[0026] The upper surface formed by the swivel ring and the annular layer together is an arc surface that is concave downward.

[0027] Preferably, an extrusion bladder is installed on the liquid outlet pipe.

[0028] Preferably, after the second expansion bladder is inflated, the top end face is an arc surface.

[0029] Preferably, on the side where the drive pipe, the liquid inlet pipe, and the liquid outlet pipe pass through the fixed disk, sealing rings are provided inside the fixed disk.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. For the drug delivery device for traditional Chinese medicine anorectal treatment of the present invention, by providing an upper cannula and a lower cannula that can be separated from each other, the distance between the upper cannula and the lower cannula can be adjusted according to the scope of the lesion, ensuring that the lesion is located between the upper cannula and the lower cannula. At the same time, in cooperation with the first expansion bladder and the second expansion bladder, the positions above and below the lesion are blocked, and the medicinal liquid can be gathered at the lesion, enabling the lesion to better absorb the medicinal liquid, avoiding waste caused by the incomplete absorption of the medicinal liquid, and at the same time avoiding the situation that during the injection of the medicinal liquid, as the medicinal liquid gradually increases, the medicinal liquid will flow in the anorectum, resulting in some of the medicinal liquid being far away from the lesion, and the medicinal liquid far away from the lesion cannot be absorbed by the lesion, thus affecting the drug absorption and treatment effect.

[0032] 2. For the drug delivery device for traditional Chinese medicine anorectal treatment of the present invention, since the first paddles are uniformly arranged and fixedly connected above the swivel ring, during the rotation of the swivel ring, the first paddles will be driven to rotate back and forth. The rotating first paddles will stir the medicinal liquid to tumble, thereby avoiding the occurrence of precipitation of the medicinal liquid, resulting in the situation that some of the precipitated medicinal liquid cannot be absorbed by the lesion. At the same time, during the tumbling of the medicinal liquid, the medicinal liquid originally located on the side farther from the lesion will flow to the lesion, so that the medicinal liquid can be fully absorbed; by adjusting the positions of the driving rod and the second paddles, it can be avoided that due to the too large distance between the upper cannula and the lower cannula, the first paddles can only stir the lower medicinal liquid, and the moved driving rod and second paddles can stir the middle and even upper medicinal liquid, thereby improving the tumbling degree of the medicinal liquid and enabling the lesion to better absorb.

[0033] 3. For the drug delivery device for traditional Chinese medicine anorectal treatment according to the present invention, when the liquid medicine is completely absorbed, at this time, the staff pushes the liquid outlet pipe upward, and the liquid port on the liquid outlet pipe will move above the fixed disk. At this time, the liquid medicine located between the upper insertion tube and the lower insertion tube will flow out from the liquid outlet pipe, and the medical staff can collect the flowing liquid medicine. During this process, the liquid medicine can be discharged through the liquid outlet pipe, thereby avoiding the pollution of the liquid inlet pipe when the liquid medicine is discharged through the liquid inlet pipe. At the same time, when the liquid medicine is discharged and the insertion tube is pulled out, it can avoid the liquid medicine flowing out from the anus and dripping on the hospital bed or the medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] Figure 1 is a perspective view of the drug delivery device of the present invention in the initial state;

[0036] Figure 2 is a perspective view of the drug delivery device of the present invention after injection;

[0037] Figure 3 is an internal structure diagram of the drug delivery device of the present invention;

[0038] Figure 4 is a structure diagram of the separated drug delivery device of the present invention;

[0039] Figure 5 is a bottom view of the drug delivery device of the present invention;

[0040] Figure 6 is the present invention Figure 5 sectional view taken along line A-A in;

[0041] Figure 7 is the present invention Figure 6 local enlarged view at B in;

[0042] Figure 8 is the present invention Figure 5 sectional view taken along line C-C in;

[0043] Figure 9 is the present invention Figure 8 local enlarged view at D in.

[0044] In the figure: 1. upper insertion tube; 11. filling block; 12. first expansion bladder; 13. driving tube; 14. first air passage; 15. annular groove; 2. lower insertion tube; 21. second expansion bladder; 22. fixing block; 23. second air passage; 3. sealing disk; 31. liquid inlet tube; 32. fixing disk; 33. connecting plate; 34. annular block; 35. rotating ring; 351. annular layer; 36. annular slideway; 37. first dial; 38. driving rod; 39. second dial; 4. liquid outlet tube; 41. sealing block; 42. liquid port; 43. extrusion bladder. Detailed implementation manners

[0045] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0046] Example 1: As Figures 1 to 9 shown, a drug delivery device for traditional Chinese medicine anorectal treatment according to the present invention includes a drug delivery device; the drug delivery device includes an intubation tube;

[0047] The intubation tube is composed of an upper intubation tube 1 and a lower intubation tube 2. In the initial state, the upper intubation tube 1 and the lower intubation tube 2 are attached to each other; the top of the upper intubation tube 1 is a hemispherical surface; a filling block 11 is fixedly connected inside the upper intubation tube 1; a first expansion bladder 12 is fixedly connected to the outer circumferential surface of the upper intubation tube 1;

[0048] The lower intubation tube 2 is cylindrical; on the side of the lower intubation tube 2 close to the upper intubation tube 1, a second expansion bladder 21 is fixedly connected to the outer circumferential surface of the lower intubation tube 2;

[0049] On the side of the lower intubation tube 2 close to the upper intubation tube 1, a sealing disc 3 is installed inside the lower intubation tube 2; a drive tube 13 is rotatably connected inside the filling block 11 of the upper intubation tube 1, and the drive tube 13 passes through the middle of the sealing disc 3 and is slidably connected to the sealing disc 3;

[0050] The drive tube 13 extends to a position below the lower intubation tube 2; the surface of the drive tube 13 below the demarcation line is provided with threads with the middle as the demarcation line;

[0051] A fixing block 22 is fixedly connected below the sealing disc 3; a threaded groove is provided in the middle of the fixing block 22, and the drive tube 13 passes through the threaded groove and is threadedly engaged with the threaded groove;

[0052] A liquid inlet tube 31 is installed on the sealing disc 3 on the right side of the drive tube 13, and the bottom of the liquid inlet tube 31 passes through the fixing block 22 and is slidably connected to the fixing block 22;

[0053] A first air passage 14 is provided in the inner wall of the upper intubation tube 1 and the filling block 11, and both ends of the first air passage 14 are communicated with the drive tube 13 and the first expansion bladder 12 respectively; a second air passage 23 is provided in the inner wall of the lower intubation tube 2, and the second air passage 23 is communicated with the second expansion bladder 21;

[0054] Specifically, when applying medicine to a patient, the medical staff slowly inserts the intubation tube from the patient's anal position. As the intubation tube gradually enters the anus and rectum, it will gradually approach the lesion site. When the upper intubation tube 1 touches the patient's lesion site, at this time, according to the patient's feeling and feedback, it can be known that the upper intubation tube 1 has reached the lesion site. Subsequently, the medical staff stops inserting the entire intubation tube further into the anus and rectum, and then the medical staff separately controls the upper intubation tube 1 to move upward;

[0055] More specifically, first, the medical staff rotates the drive tube 13. Since the threads on the lower part of the drive tube 13 mesh with the threads on the fixed block 22, when rotating the drive tube 13, the drive tube 13 will gradually move towards the upper intubation tube 1. At the same time, the drive tube 13 will drive the upper intubation tube 1 to move separately in the anus and rectum. The moving upper intubation tube 1 will gradually pass through the lesion site on the anus and rectum. When the moving upper intubation tube 1 completely passes through the lesion site, at this time, according to the patient's feeling and feedback, it can be known that the upper intubation tube 1 has passed through the lesion site, and the lesion site is located between the upper intubation tube 1 and the lower intubation tube 2. Subsequently, stop rotating the drive tube 13. Then, the staff inserts the inflatable tube into the drive tube 13 and the second air passage 23. The gas entering the drive tube 13 will gradually enter the first air passage 14. Subsequently, the gas in the first air passage 14 will enter the first expansion bladder 12, and the first expansion bladder 12 will expand. The expanded first expansion bladder 12 can block the position above the lesion, and at the same time, the gas entering the second air passage 23 will enter the second expansion bladder 21. Subsequently, the second expansion bladder 21 also expands and blocks the position below the lesion. Then, medicine can be administered into the anus and rectum;

[0056] Further, when administering medicine, the medical staff connects the bottom of the liquid inlet tube 31 to the catheter. Then, the medical staff gradually injects the liquid medicine into the liquid inlet tube 31. The liquid medicine entering the liquid inlet tube 31 will gradually flow above the sealing disc 3. As the injected liquid medicine gradually increases, the liquid level height of the liquid medicine between the upper intubation tube 1 and the lower intubation tube 2 gradually rises. Since the first expansion bladder 12 and the second expansion bladder 21 can block the positions above and below the lesion, it can prevent the liquid medicine from flowing in the anus and rectum. When the injection of the liquid medicine is completed, at this time, all the liquid medicine is located between the upper intubation tube 1 and the lower intubation tube 2. Subsequently, the liquid medicine will be absorbed by the lesion site, thereby treating the lesion site;

[0057] Furthermore, by providing the upper cannula 1 and the lower cannula 2 that can be separated from each other, the distance between the upper cannula 1 and the lower cannula 2 can be adjusted according to the scope of the lesion, ensuring that the lesion is located between the upper cannula 1 and the lower cannula 2. At the same time, by cooperating with the first expansion bladder 12 and the second expansion bladder 21 to block the positions above and below the lesion, the medicinal liquid can be gathered at the lesion, enabling the lesion to better absorb the medicinal liquid, avoiding waste caused by incomplete absorption of the medicinal liquid, and also avoiding the flow of the medicinal liquid in the anorectum due to the gradual increase of the medicinal liquid during the injection of the medicinal liquid, resulting in some of the medicinal liquid moving away from the lesion and being unable to be absorbed by the lesion, thus affecting the drug absorption and treatment effect.

[0058] Embodiment 2: The sealing disc 3 includes a fixed disc 32 and a rotating ring 35; the fixed disc 32 is provided inside the lower cannula 2; the bottom of the fixed disc 32 is fixedly connected to two connecting plates 33, and the other ends of the connecting plates 33 are fixedly connected to the inner wall of the lower cannula 2;

[0059] An annular block 34 is fixedly connected to the outer peripheral surface of the fixed disc 32; a rotating ring 35 is rotatably connected to the outer peripheral surface of the fixed disc 32, and the rotating ring 35 is located above the connecting plate 33 and is entirely higher than the fixed disc 32;

[0060] An annular slideway 36 is formed on the inner peripheral surface of the rotating ring 35, and the annular block 34 slides in the annular slideway 36; both the driving tube 13 and the liquid inlet tube 31 pass through the fixed disc 32;

[0061] Evenly arranged first paddles 37 are fixedly connected to the upper surface of the rotating ring 35; two driving rods 38 are installed in the inner wall of the rotating ring 35, and the straight line formed by the two driving rods 38 is perpendicular to the fixed block 22 and the connecting plate 33; the two driving rods 38 extend to a position below the lower cannula 2;

[0062] In this embodiment, the two driving rods 38 slide inside the rotating ring 35;

[0063] Second paddles 39 are fixedly connected to the tops of the two driving rods 38, and the two second paddles 39 are arranged in a staggered manner with the first paddles 37;

[0064] An annular groove 15 is formed inside the filling block 11, and in the initial state, both the first paddles 37 and the second paddles 39 are located inside the annular groove 15;

[0065] Specifically, after the liquid medicine is injected between the upper cannula 1 and the lower cannula 2, during the period when the lesion absorbs the liquid medicine, medical staff can hold the two active rods 38 and rotate them. Since the straight line formed by the active rods 38 in the initial state is perpendicular to the connecting plate 33 and the fixed block 22, when the medical staff hold the two connecting rods and rotate them clockwise, the two active rods 38 will gradually approach the fixed block 22. After the active rod 38 contacts the fixed block 22, rotate the two active rods 38 in the reverse direction again. After the reversely rotated active rod 38 contacts the fixed block 22 again, rotate the active rod 38 clockwise again, and so on in a cycle;

[0066] More specifically, during the process of the active rod 38 rotating forward and backward in a cycle, it will drive the rotating ring 35 to rotate forward and backward in a cycle along the fixed disk 32. At the same time, the annular slideway 36 will rotate back and forth along the annular block 34. Since the first paddles 37 are fixedly connected above the rotating ring 35 and are evenly arranged, during the rotation of the rotating ring 35, it will drive the first paddles 37 to rotate back and forth. The rotating first paddles 37 will stir the liquid medicine to roll, thereby avoiding the occurrence of precipitation of the liquid medicine, which may cause some precipitated liquid medicine not to be absorbed by the lesion. At the same time, during the process of the liquid medicine turning over, the liquid medicine originally located on the side farther from the lesion will flow to the lesion, so that the liquid medicine can be fully absorbed;

[0067] Furthermore, when the distance between the upper cannula 1 and the lower cannula 2 is too far, at this time, medical staff can push the two active rods 38 to move within the rotating ring 35. The moving active rods 38 will gradually move towards the position of the upper cannula 1 and drive the second paddles 39 to move. Subsequently, control the two active rods 38 to drive the rotating ring 35 to rotate back and forth. During this process, it can be avoided that due to the excessive distance between the upper cannula 1 and the lower cannula 2, the first paddles 37 can only stir the liquid medicine below. The moved active rods 38 and the second paddles 39 can stir the liquid medicine in the middle and even above, thereby improving the rolling degree of the liquid medicine and enabling better absorption at the lesion.

[0068] Embodiment 3: A liquid outlet pipe 4 is installed inside the fixed disk 32 on the left side of the drive pipe 13, and the bottom of the liquid outlet pipe 4 passes through the fixed block 22 and is slidably connected to the fixed block 22;

[0069] Sealing blocks 41 are fixedly connected to the tops of both the liquid inlet pipe 31 and the liquid outlet pipe 4, and the sealing blocks 41 are in contact with the top of the fixed disk 32 in the initial state;

[0070] Liquid ports 42 are opened in the inner walls of the liquid inlet pipe 31 and the liquid outlet pipe 4 below the two sealing blocks 41; both the liquid inlet pipe 31 and the liquid outlet pipe 4 slide inside the fixed disk 32;

[0071] Specifically, since sealing blocks 41 are fixedly connected to both the liquid inlet pipe 31 and the outlet pipe, and the liquid ports 42 on the liquid inlet pipe 31 and the outlet pipe 4 are initially located within the fixed disk 32. When injecting the liquid medicine, the medical staff pushes the liquid inlet pipe 31 upward so that the liquid port 42 on the liquid inlet pipe 31 is located above the fixed disk 32, and the liquid medicine will flow into the space between the upper insertion tube 1 and the lower insertion tube 2 through the liquid inlet 42. When the liquid injection is completed, the liquid inlet pipe 31 is controlled to return to its initial state, and at this time, the liquid port 42 on the liquid inlet pipe 31 will be sealed within the fixed disk 32;

[0072] More specifically, when the liquid medicine is completely absorbed, at this time, the staff pushes the outlet pipe 4 upward, and the liquid port 42 on the outlet pipe 4 will move above the fixed disk 32. At this time, the liquid medicine located between the upper insertion tube 1 and the lower insertion tube 2 will flow out from the outlet pipe 4, and the medical staff can collect the flowing liquid medicine. During this process, the liquid medicine can be discharged through the outlet pipe 4, thereby avoiding contamination of the liquid inlet pipe 31 when discharging the liquid medicine using the liquid inlet pipe 31. At the same time, when the liquid medicine is discharged and the insertion tube is pulled out, it can prevent the liquid medicine from flowing out of the anus and dripping onto the hospital bed or the medical staff;

[0073] Furthermore, when pulling out the insertion tube, the staff connects the air extraction tube to the drive tube 13 and the second air passage 23 respectively, and extracts air from the first expansion bladder 12 and the second expansion bladder 21. When the gas in the first expansion bladder 12 and the second expansion bladder 21 is extracted, at this time, the first expansion bladder 12 and the second expansion bladder 21 will adhere to the surfaces of the upper insertion tube 1 and the lower insertion tube 2. When the insertion tube is pulled out, the scratching degree of the first expansion bladder 12 on the lesion can be reduced.

[0074] Embodiment 4: An annular layer 351 is fixedly connected to the inner circumferential surface of the rotating ring 35, and the annular layer 351 is located above the fixed disk 32 and fits with the upper surface of the fixed disk 32; the upper surface formed by the rotating ring 35 and the annular layer 351 together is a downwardly concave arc surface;

[0075] In this embodiment, an extrusion bladder 43 is installed on the outlet pipe 4;

[0076] In this embodiment, after the second expansion bladder 21 is inflated, the top end face is an arc surface;

[0077] In this embodiment, on the side where the drive tube 13, the liquid inlet pipe 31, and the outlet pipe 4 pass through the fixed disk 32, sealing rings are provided within the fixed disk 32;

[0078] Specifically, since the upper surface formed by the swivel ring 35 and the annular layer 351 is a downwardly concave arc surface, when discharging the liquid medicine, the liquid medicine will flow along the downwardly concave arc surface. As the liquid medicine gradually decreases, the liquid medicine will eventually completely flow into the inner circle of the annular layer 351 and then be discharged from the liquid outlet pipe 4. During this process, it is possible to avoid some liquid medicine remaining on the upper surface of the swivel ring 35, resulting in the remaining liquid medicine dripping when the cannula is pulled out. Since the top end face is an arc surface after the second expansion bladder 21 is inflated, as the height of the liquid medicine level gradually decreases, the liquid medicine will flow downward along the arc surface of the second expansion bladder 21, thereby avoiding some liquid medicine remaining on the second expansion bladder 21.

[0079] More specifically, since an extrusion bladder 43 is installed on the liquid outlet pipe 4, during the process of discharging the liquid medicine, if some substances in the anus and rectum block the liquid outlet pipe 4, at this time, pressing the extrusion bladder 43, the liquid medicine in the extrusion bladder 43 will impact the liquid outlet pipe 4, thereby being able to dredge the liquid outlet pipe 4 and avoid the liquid outlet pipe 4 being blocked and unable to discharge the liquid medicine.

[0080] Furthermore, due to the sealing ring provided in the fixed disk 32, the drive pipe 13, the liquid inlet pipe 31 and the liquid outlet pipe 4 can be sealed, thereby avoiding the outflow of liquid.

[0081] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the Figure 1 orientation or positional relationship shown, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0082] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A drug delivery device for anorectal treatment in traditional Chinese medicine, comprising a drug delivery device; characterized in that: The drug delivery device includes a cannula; The cannula is composed of an upper cannula (1) and a lower cannula (2). In an initial state, the upper cannula (1) and the lower cannula (2) are in contact with each other; the top of the upper cannula (1) is a hemispherical surface; the interior of the upper cannula (1) is fixedly connected to a filling block (11); the outer surface of the upper cannula (1) is fixedly connected to a first expansion bag (12); The lower insert tube (2) is cylindrical; a second expansion bag (21) is fixedly connected to the outer surface of the lower insert tube (2) on a side of the lower insert tube (2) close to the upper insert tube (1); A sealing disk (3) is installed inside the lower insert tube (2) on a side close to the upper insert tube (1); a driving tube (13) is rotatably connected inside a filling block (11) inside the upper insert tube (1); the driving tube (13) passes through the middle of the sealing disk (3) and is slidably connected to the sealing disk (3); The driving tube (13) extends to a position below the lower insert tube (2); the middle of the driving tube (13) is a dividing line, and the surface of the driving tube (13) below the dividing line is provided with threads; A fixing block (22) is fixedly connected below the sealing disk (3); a thread groove is provided in the middle of the fixing block (22); the driving tube (13) passes through the thread groove and is thread-engaged with the thread groove; A liquid inlet pipe (31) is installed on the right side of the driving pipe (13) and located on the sealing disk (3). The bottom of the liquid inlet pipe (31) passes through the fixed block (22) and is slidably connected to the fixed block (22); A first air passage (14) is provided in the inner wall of the upper insert tube (1) and the filling block (11), and two ends of the first air passage (14) are respectively connected to the driving tube (13) and the first expansion bag (12); a second air passage (23) is provided in the inner wall of the lower insert tube (2), and the second air passage (23) is connected to the second expansion bag (21); The sealing disc (3) comprises a fixed disc (32) and a rotating ring (35); A fixing plate (32) is provided inside the lower insert tube (2); the bottom of the fixing plate (32) is fixedly connected to two connecting plates (33), and the other end of the connecting plate (33) is fixedly connected to the inner wall of the lower insert tube (2); An annular block (34) is fixedly connected to the outer ring surface of the fixed disk (32); a rotating ring (35) is rotatably connected to the outer ring surface of the fixed disk (32), and the rotating ring (35) is located above the connecting plate (33) and is higher than the fixed disk (32) as a whole; The inner surface of the rotating ring (35) is provided with an annular slideway (36), and the annular block (34) slides in the annular slideway (36); the driving pipe (13) and the liquid inlet pipe (31) both pass through the fixed plate (32); The upper surface of the rotating ring (35) is fixedly connected to the first paddles (37) which are evenly arranged; two active rods (38) are installed in the inner wall of the rotating ring (35); the straight line formed by the two active rods (38) is perpendicular to the fixed block (22) and the connecting plate (33); the two active rods (38) extend to the position below the lower insert pipe (2).

2. A drug delivery device for anorectal treatment in traditional Chinese medicine according to claim 1, characterized in that: Two active rods (38) slide in the rotating ring (35); The tops of the two active rods (38) are both fixedly connected to the second paddles (39), and the two second paddles (39) and the first paddles (37) are arranged alternately; An annular groove (15) is provided in the filling block (11), and in an initial state, the first paddle (37) and the second paddle (39) are both located in the annular groove (15).

3. A drug delivery device for anorectal treatment in traditional Chinese medicine according to claim 2, characterized in that: A liquid outlet pipe (4) is installed on the left side of the driving pipe (13) in the fixed plate (32), and the liquid outlet pipe (4) passes through the fixed block (22) at the bottom and is slidably connected to the fixed block (22); The tops of the liquid inlet pipe (31) and the liquid outlet pipe (4) are fixedly connected to the sealing block (41), and the sealing block (41) is in contact with the top of the fixed plate (32) in the initial state; Liquid ports (42) are provided in the inner walls of the liquid inlet pipe (31) and the liquid outlet pipe (4) below the two sealing blocks (41); the liquid inlet pipe (31) and the liquid outlet pipe (4) are both slidable in the fixed plate (32).

4. A drug delivery device for anorectal treatment in traditional Chinese medicine according to claim 3, characterized in that: An annular layer (351) is fixedly connected to the inner ring surface of the rotating ring (35), and the annular layer (351) is located above the fixed disk (32) and is in contact with the upper surface of the fixed disk (32); The upper surface formed by the rotating ring (35) and the annular layer (351) is a downwardly concave arc surface.

5. A drug delivery device for anorectal treatment in traditional Chinese medicine according to claim 4, characterized in that: A squeezing bag (43) is installed on the liquid outlet pipe (4).

6. A drug delivery device for anorectal treatment in traditional Chinese medicine according to claim 5, characterized in that: After the second expansion bag (21) is inflated, the top end surface is a curved surface.

7. A drug delivery device for anorectal treatment in traditional Chinese medicine according to claim 6, characterized in that: A sealing ring is provided on one side of the driving tube (13), the liquid inlet tube (31) and the liquid outlet tube (4) passing through the fixed disk (32) and located inside the fixed disk (32).

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