Anorectal dosing device

Abstract

The anorectum dosing device comprises a liquid storage bag, a dosing mechanism, a first driving mechanism and a second driving mechanism, the dosing mechanism is provided with a liquid outlet, the dosing mechanism comprises a dosing head, a dosing rod and a movable touch hand, the dosing rod is provided with a middle flow channel, and the movable touch hand is arranged on the dosing rod in a running fit mode; the dosing head can be driven to rotate relative to the dosing rod, the first driving mechanism is provided with a moving rod, the moving rod drives the dosing rod and the dosing head to rotate, the second driving mechanism is provided with a sliding rod, and the sliding rod drives the movable tentacle to rotate. Liquid medicine is added into the liquid storage bag, then medicine feeding is carried out through the medicine feeding structure, the first driving mechanism drives the medicine rod and the medicine feeding head to rotate, the second driving mechanism drives the movable tentacle to rotate, the movable tentacle can scrape out residues remaining in anorectum, cleaning is carried out through the liquid outlet, then the medicine feeding head and the movable tentacle rotate, and medicine feeding is carried out through the medicine feeding head and the movable tentacle. Meanwhile, the movable tentacles can prevent part of liquid medicine from moving towards the stomach, and the swelling pain feeling of a patient is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to an anorectal medication device. Background Art

[0002] At present, anorectal drug delivery devices are usually used to treat anorectal patients. The anorectal drug delivery devices include a liquid storage bag and a drug delivery tube. The liquid medicine is stored in the liquid storage bag. The liquid medicine in the liquid storage bag is squeezed to be delivered into the intestinal tract through the drug delivery tube. The liquid medicine is rapidly absorbed by the rectal mucosa and enters the general circulation, thereby exerting its efficacy to treat systemic or local diseases.

[0003] However, before using the above-mentioned anorectal drug delivery device, the anus and intestines need to be cleaned first, and the excrement remaining in the anus and intestines needs to be discharged from the body before the anorectal drug delivery device can be used to deliver the drug. In addition, in the existing drug delivery process, medical staff need to manually rotate the drug delivery tube, which is easy to shift during the rotation process, resulting in the inability to accurately control the drug delivery site. In addition, due to the presence of the drug delivery tube, the drug solution flowing out of the drug delivery tube is easy to move from the intestine to the stomach, giving the anorectal patient a feeling of distension and pain. In addition, during the drug delivery process, it is impossible to monitor the condition of the lesion site and the treatment effect in real time, thereby affecting the treatment effect.

[0004] Therefore, there is an urgent need for an anorectal drug delivery device that can simultaneously meet the needs of anorectal excrement treatment and accurate drug delivery during the drug delivery process, and can also prevent the drug solution from flowing into the stomach to avoid the bloating and pain of anorectal patients. Summary of the invention

[0005] In view of this, the present invention provides an anorectal drug delivery device that can simultaneously meet the needs of anorectal excrement treatment and accurate drug delivery during the drug delivery process, and can also prevent the drug solution from flowing into the stomach to avoid the distending pain of anorectal patients.

[0006] The anorectal drug delivery device provided by the present invention adopts the following technical solution:

[0007] An anorectal medication device, comprising:

[0008] A liquid storage capsule, used for storing liquid medicine;

[0009] A dosing mechanism having a liquid outlet, the dosing mechanism is used to discharge the liquid in the liquid storage capsule through the liquid outlet, the dosing mechanism comprises a dosing head, a dosing rod and a movable tentacle, the dosing rod has an intermediate flow channel communicating with the liquid storage capsule and the dosing head, the movable tentacle is driven to rotate along the length direction of the dosing rod, and the dosing head can be driven to rotate relative to the dosing rod;

[0010] A driving mechanism 1, comprising a moving rod, wherein the moving rod can be driven to rotate the dosing rod and the dosing head;

[0011] The second driving mechanism has a sliding rod, and the sliding rod can be driven to drive the movable tentacle to rotate.

[0012] Optionally, the driving mechanism includes a moving rod, a center wheel, a planetary wheel, a ring gear and a driving member, the planetary wheel is respectively meshed with the center wheel and the ring gear, the ring gear is coaxially fixed to the dosing rod, a plurality of planetary wheels are arranged at intervals along the circumferential direction, the center wheel can be driven to rotate, the moving rod is coaxially arranged on the planetary wheel, the moving rod is fixedly connected to the dosing head, and the driving member is used to drive the center wheel to rotate.

[0013] Optionally, an airbag portion is provided between the drug-delivery rod and the movable tentacle, and the airbag portion can be driven to expand by inflation or contract by deflating. The expansion or contraction of the airbag portion can drive the movable tentacle to rotate.

[0014] Optionally, the second driving mechanism includes a driving source, a rotating wheel, a crank, a slider and a sliding rod. The slider is axially slidably arranged in the dosing rod, and the sliding rod is rotatably arranged in the sliding block. The driving source is used to drive the rotating wheel to rotate. The crank is eccentrically arranged on the rotating wheel and is rotatably connected to the slider. The sliding rod drives the movable tentacle to rotate during the axial reciprocating movement.

[0015] Optionally, the rotating wheel includes an inner wheel and an outer wheel, the outer contour of the inner wheel is circumferentially provided with a protrusion, the inner contour of the outer wheel is circumferentially provided with a recessed portion adapted to the protrusion, the protrusion and the recessed portion cooperate with each other, the recessed portion or the protrusion is made of elastic material so that the recessed portion can rotate relative to the protrusion, and the driving source is used to drive the inner wheel to rotate.

[0016] Optionally, an anti-backflow mechanism is provided on the top of the dosing head, and the anti-backflow mechanism includes a telescopic rod and a rotating rod rotatably arranged on the telescopic rod. A plurality of rotating rods are arranged at intervals along the circumference, and a flexible connecting part is provided between adjacent rotating rods. The rotating rod can be driven to open or contract, and the telescopic rod can be driven to extend and extend from the dosing head or contract into the dosing head.

[0017] Optionally, a camera is arranged on the top of the telescopic rod.

[0018] Optionally, the movable tentacle has a plurality of flexible portions conforming to the anal sinus.

[0019] Optionally, scale lines are arranged on the dosing rod, and soft tentacles are arranged in an array on the outer contour of the dosing rod.

[0020] Optionally, the medication head is circumferentially recessed inward to form a recess, and the recess is used to accommodate residues in the anus and rectum.

[0021] To summarize, the present invention includes at least one of the following beneficial technical effects: adding liquid medicine to the liquid storage capsule, and then administering the medicine through the drug administration structure, driving mechanism 1 drives the medicine rod and the drug administration head to rotate, and driving mechanism 2 drives the movable tentacles to rotate, the movable tentacles can scrape out the residues remaining in the anus and rectum, and clean them through the liquid outlet, and then the drug administration head and the movable tentacles rotate to accurately control the drug administration site. At the same time, the movable tentacles can prevent part of the liquid medicine from moving to the stomach, reducing the patient's bloating and pain. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is a schematic diagram of the structure before use of an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the cleaning structure of an embodiment of the present invention;

[0025] Figure 3 is a schematic structural diagram of an anti-backflow mechanism of an embodiment of the present invention when it is opened;

[0026] Figure 4 It is a schematic diagram of the internal structure of an embodiment of the present invention.

[0027] Explanation of the accompanying drawings: 1. Liquid storage capsule; 2. Liquid outlet; 3. Dosing head; 4. Dosing rod; 5. Movable tentacle; 6. Moving rod; 7. Center wheel; 8. Planetary gear; 9. Ring gear; 10. Driving source; 11. Rotating wheel; 111. Inner wheel; 112. Outer wheel; 12. Crank; 13. Sliding block; 14. Airbag part; 15. Telescopic rod; 16. Rotating rod; 17. Flexible connecting part; 18. Camera; 19. Scraper; 20. Flexible part; 21. Soft tentacle; 22. Recess; 23. Sliding rod. DETAILED DESCRIPTION

[0028] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0029] The following is combined with Figure 1-4 The present invention is described in further detail.

[0030] The embodiment of the invention discloses an anorectal medication device.

[0031] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A anorectal drug delivery device comprises a liquid storage capsule 1, a drug delivery mechanism, a driving mechanism 1 and a driving mechanism 2, wherein the liquid storage capsule 1 is used to store liquid medicine, the drug delivery mechanism has a liquid outlet 2, and the drug delivery mechanism is used to discharge the liquid medicine in the liquid storage capsule 1 through the liquid outlet 2, the drug delivery mechanism comprises a drug delivery head 3, a drug delivery rod 4 and a movable tentacle 5, the drug delivery rod 4 has an intermediate flow channel that communicates with the liquid storage capsule 1 and the drug delivery head 3, the movable tentacle 5 can be driven to rotate along the length direction of the drug delivery rod 4, the drug delivery head 3 can be driven to rotate relative to the drug delivery rod 4, the driving mechanism 1 has a moving rod 6, the moving rod 6 can be driven to drive the drug delivery rod 4 and the drug delivery head 3 to rotate, and the driving mechanism 2 has a sliding rod 23, and the sliding rod 23 can be driven to drive the movable tentacle 5 to rotate. The drug solution is added to the liquid storage bag 1, and then the drug is administered through the drug administration structure. The driving mechanism 1 drives the drug rod and the drug administration head 3 to rotate, and the driving mechanism 2 drives the movable tentacle 5 to rotate. The movable tentacle 5 can scrape out the residues remaining in the anus and intestines, and clean them through the liquid outlet 2. Then the drug administration head 3 and the movable tentacle 5 rotate to accurately control the drug administration site. At the same time, the movable tentacle 5 can prevent part of the drug solution from moving to the stomach, thereby reducing the patient's bloating and pain.

[0032] The liquid storage capsule 1 can be made of hard materials, such as alloys, metals, etc., or can be made of soft materials, such as plastics, etc. When it is made of hard materials, a pumping device needs to be installed to discharge the liquid in the liquid storage capsule 1 into the drug delivery mechanism. When it is made of soft materials, there is no need to install a pumping device, and the medical staff only needs to press the liquid storage capsule 1.

[0033] In this embodiment, the liquid storage capsule 1 is made of a hard material, and an electric liquid pumping device is installed in the dosing rod 4 to pump the liquid in the liquid storage capsule 1 into the dosing rod 4. The liquid storage capsule 1 can store enema, pure water, honey water or other liquid medicine.

[0034] In this embodiment, the medication rod 4 is detachably disposed in the liquid storage capsule 1. When the medication rod 4 is detached, the medical staff can replenish or clean the liquid storage capsule 1. Specifically, the medication rod 4 is threadedly connected to the liquid storage capsule 1.

[0035] The dosing rod 4 has a hollow structure formed by an intermediate flow channel. A water pipe is installed in the dosing rod 4. The liquid in the liquid storage capsule 1 moves to the corresponding liquid outlet 2 through the water pipe. A main water pipe is arranged at the bottom of the dosing rod 4. The main water pipe is connected to the liquid pumping device (when the liquid storage capsule 1 is made of soft material, it is directly connected to the liquid storage capsule 1). The main water pipe can rotate relative to the dosing rod 4. A plurality of branch water pipes are connected to the liquid outlet end of the main water pipe. The branch water pipes are connected to the corresponding liquid outlet 2, and the liquid medicine is discharged through the corresponding branch water pipes and the liquid outlet 2.

[0036] In this embodiment, the outer wheel 112 of the medication rod 4 is provided with soft tentacles 21 in an array. The softness of the soft tentacles 21 is close to the hardness of the intestinal mucosa, and the setting of the soft tentacles 21 can fully contact the anorectal area to assist in scraping out residues, or stimulate and induce defecation.

[0037] In this embodiment, the medication rod 4 is provided with scale lines, which facilitate medical staff to accurately administer medication. Furthermore, the medication rod 4 is composed of multiple sub-rods, and adjacent sub-rods are detachably connected. Sub-rods of different numbers are installed to form medication rods 4 of different lengths, which can meet the treatment needs of anorectal patients with different needs, improve applicability, and further improve the accuracy of medication during the medication process. The setting of the medication rod 4 meets the requirements of the delivery of the drug solution, the accurate delivery of the drug during the medication process, and the auxiliary treatment of anorectal excrement, thereby improving the treatment effect.

[0038] In this embodiment, the sub-rod at the top is connected to the dosing head 3, and the connection method can be a detachable connection or a fixed connection. When a detachable connection is adopted, different dosing heads 3 can be replaced, which improves the applicability and is also convenient for cleaning and maintenance of the dosing head 3.

[0039] In this embodiment, the top of the medication head 3 has an arc-shaped transition for guiding the head of the present invention into the anus and rectum. The medication head 3 is circumferentially recessed inward to form a recess 22 for accommodating residues in the anus and rectum.

[0040] In this embodiment, the movable tentacle 5 is arranged on the medication head 3 so as to rotate up and down. The movable tentacle 5 has a plurality of flexible parts 20 conforming to the anal sinus. The flexible part 20 also has a liquid outlet 2, so that the anorectal residue can be scraped and flushed at the same time. Not only can the residue be cleaned more smoothly and more cleanly, but also the movable tentacle 5 can be cleaned at the same time, so as to avoid cleaning the movable tentacle 5 alone, thus saving the surgical process and improving efficiency.

[0041] A scraper 19 is provided on the flexible portion 20, and the scraper 19 has an arc-shaped transition. The recess 22 is located between the two scrapers 19. During the rotation of the movable tentacle 5, the residue is scraped into the recess 22 and taken away from the anus and intestines through the recess 22, thereby cleaning the residue in the anus and intestines, further improving the cleaning effect. In addition, during the later drug administration process, the scraper 19 rotates with the movable tentacle 5, and can also massage the anus and intestines, assisting the absorption of the medicine, and further improving the drug administration effect.

[0042] The flexibility of the flexible portion 20 and the scraper 19 is close to that of the intestinal mucosa, thereby alleviating irritation to the anorectum.

[0043] An airbag portion 14 is arranged between the dosing rod 4 and the movable tentacle 5. The airbag portion 14 can be driven to expand by inflation or contract by vacuum. The expansion or contraction of the airbag portion 14 can drive the movable tentacle 5 to rotate. A small air source is separately arranged in the dosing rod 4, and an external air source can also be connected. The airbag portion 14 is arranged above and below the movable tentacle 5. When the movable tentacle 5 rotates away from the dosing head 3, the rotation angle can be adjusted by the airbag portion 14 below. Similarly, when it rotates in the direction close to the dosing head 3, the rotation angle can be adjusted by the airbag portion 14 above.

[0044] The airbag part 14 can make the movable tentacle 5 fit the anus and rectum more closely, and the cleaning and later drug administration are more efficient. The airbag part 14 is elastic. Compared with the direct manipulation of the rigid structure, the use of the airbag part 14 to assist in adjusting the rotation angle is more comfortable and has a better fit for the patient, and the control accuracy of the motor is lower, so as to avoid the anorectal injury of the patient caused by excessive rotation of the motor. The airbag part 14 can be used to rotate at a large angle using the motor, and to rotate at a small angle using the airbag form, which can improve safety and comfort and is more acceptable to the patient. In addition, the use of the airbag part 14 can also compensate for the size change caused by the contraction or expansion of the anorectal due to stimulation, which is more gentle and has a better fit, can avoid irritating the anorectal, and has good comfort.

[0045] In this embodiment, the driving mechanism 1 includes a moving rod 6, a center wheel 7, a planetary wheel 8, a ring gear 9 and a driving member. The planetary wheel 8 is meshed with the center wheel 7 and the ring gear 9 respectively. The ring gear 9 is coaxially fixed to the dosing rod 4. A plurality of planetary wheels 8 are arranged at intervals along the circumferential direction. The center wheel 7 can be driven to rotate. The moving rod 6 is coaxially arranged on the planetary wheel 8. The moving rod 6 is fixedly connected to the dosing head 3. The driving member is used to drive the center wheel 7 to rotate. The driving member adopts a motor (not shown in the figure), and the motor drives the center wheel 7 to rotate through a transmission structure, such as a bevel gear method or a worm gear method.

[0046] In this embodiment, the movable rod 6 is a hollow rod, and the branch water pipe is coaxially arranged inside the movable rod 6, which is used to transport the medicinal liquid to the liquid outlet 2. The liquid outlet 2 arranged on the uppermost sub-rod is in communication with the branch water pipe, and the liquid outlet 2 of the non-rotating sub-rod is in communication with the main water pipe, thereby satisfying the simultaneous liquid discharge of the rotating sub-rod and the non-rotating sub-rod, thereby improving the cleaning effect and the medication effect.

[0047] In this embodiment, the sub-rod at the top is located within the projection area of ​​the movable tentacle 5, that is, when the anorectal drug delivery device is inserted, the sub-rod at the top will not directly contact the anorectal area, thereby avoiding direct contact with the anorectal area during rotation, resulting in anorectal damage, and improving safety.

[0048] In this embodiment, the movable rod 6 can synchronously drive the uppermost sub-rod, the drug delivery head 3 and the movable tentacle 5 to rotate, so as to realize the early anorectal cleaning and the later drug delivery. The reason for rotating only part of the sub-rod is to avoid the rotation of the sub-rod at the anus, to avoid continuous friction at the anus, resulting in anal damage or aggravating the patient's discomfort.

[0049] The second driving mechanism includes a driving source 10, a rotating wheel 11, a crank 12, a slider 13 and a sliding rod 23. The slider 13 is axially slidably arranged in the dosing rod 4, and the sliding rod 23 is rotatably arranged in the sliding block. The driving source 10 is used to drive the rotating wheel 11 to rotate. In this embodiment, the driving source 10 adopts a motor, the crank 12 is eccentrically arranged on the rotating wheel 11 and is rotatably connected to the slider 13. The sliding rod 23 drives the movable tentacle 5 to rotate during the axial reciprocating movement. One end of the sliding rod 23 is connected to the rotating rod 16 of the movable tentacle 5, and the other end is connected to the slider 13. The axial movement of the slider 13 drives the sliding rod 23 to move axially, thereby driving the movable tentacle 5 to rotate up and down.

[0050] A bearing is coaxially arranged on the center wheel 7 , and the sliding rod 23 is axially slidably penetrated in the bearing. The rotation of the center wheel 7 does not drive the bearing to rotate, and the bearing can rotate relative to the center wheel 7 .

[0051] Furthermore, the rotating wheel 11 includes an inner wheel 111 and an outer wheel 112. The outer wheel 112 of the inner wheel 111 is circumferentially provided with a protrusion, and the inner wheel 111 of the outer wheel 112 is circumferentially provided with a recessed portion adapted to the protrusion. The protrusion and the recessed portion cooperate with each other, and the recessed portion or the protrusion is made of elastic material so that the recessed portion can rotate relative to the protrusion. The driving source 10 is used to drive the inner wheel 111 to rotate.

[0052] The rotation of the center wheel 7 drives the planetary wheel 8 to rotate in the circumferential direction. Since the moving rod 6 is arranged on the planetary wheel 8, the moving rod 6 rotates synchronously, and the branch water pipe is arranged in the moving rod 6, which also drives the branch water pipe to rotate synchronously. The moving rod 6 also drives the top sub-rod to rotate synchronously, and the top sub-rod drives the drug delivery head 3 to rotate, and the movable tentacle 5 is arranged on the drug delivery head 3, which drives the movable tentacle 5 to rotate synchronously. Therefore, the rotation of the center wheel 7 will synchronously drive the top sub-rod, the drug delivery head 3 and the movable tentacle 5 to rotate, so as to complete the cleaning and drug delivery of the anus and rectum. The rotary drug delivery can perfectly cover the required drug delivery position of the anus and rectum, and can further improve the absorption effect of the liquid medicine. At the same time, the anorectal drug delivery device of the present invention also has the function of cleaning residues, and the rotation function can also improve the effect of cleaning residues, avoid residues remaining at the required drug delivery position of the anus and rectum, and further ensure the drug delivery effect.

[0053] The drug delivery head 3 is located at the armpit of the movable tentacle 5 and is provided with a liquid outlet 2. The drug liquid is radially sprayed to improve the cleaning and lubrication effects. The flexible part 20 fully contacts the anorectal mucosa through reciprocating and rotation, accurately cleans the anal sinus, scrapes out the residues remaining in the anorectum, and fully stimulates the anorectal receptors (such as intestinal wall stretch receptors, sensory nerve fibers of the external anal sphincter and the internal anal sphincter) to induce the urge to defecate, thereby smoothly defecation.

[0054] In this embodiment, an anti-backflow mechanism is provided at the top of the medication head 3, and the anti-backflow mechanism includes a telescopic rod 15 and a rotating rod 16 rotatably arranged on the telescopic rod 15, a plurality of rotating rods 16 are arranged at intervals along the circumference, and a flexible connection portion 17 is provided between adjacent rotating rods 16, the rotating rod 16 can be driven to open or contract, and the telescopic rod 15 can be driven to extend from the medication head 3 or contract into the medication head 3, and an air bag is provided between the rotating rod 16 and the movable end of the telescopic rod 15, and the rotating rod 16 is expanded or contracted by the expansion or contraction of the air bag. The anti-backflow mechanism can prevent the drug solution from moving toward the stomach, reduce the turbulence of the drug solution, alleviate the patient's distending pain, and improve the comfort of treatment.

[0055] In order to facilitate the medical staff to observe the internal situation of the anorectal cavity, a camera 18 is provided on the top of the telescopic rod 15. The telescopic rod 15 can be an electric telescopic rod 15, which is telescopically controlled.

[0056] In this embodiment, a control system is also included, which is used to control the start and stop of drive mechanism 1 and drive mechanism 2 and the speed of the corresponding motor, and the inflation and deflating of the airbag part 14. The control system can also have a wireless communication system for wirelessly controlling the anorectal drug delivery device of the present invention. The control system uses a CPU and its peripheral circuits.

[0057] The anorectal drug delivery device of the present invention can provide anorectal patients with safe laxative services, anal sinus cleaning, defecation induction, precise drug delivery and anal canal maintenance, is easy and convenient to use, can be reused, has a high utilization rate, and has an excellent cleaning effect.

[0058] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements, modifications or changes can be made, and the above technical features can be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. An anorectal medication device, characterized in that: include: A liquid storage capsule, used for storing liquid medicine; A dosing mechanism having a liquid outlet, the dosing mechanism is used to discharge the liquid in the liquid storage capsule through the liquid outlet, the dosing mechanism comprises a dosing head, a dosing rod and a movable tentacle, the dosing rod has an intermediate flow channel communicating with the liquid storage capsule and the dosing head, the movable tentacle is driven to rotate along the length direction of the dosing rod, and the dosing head can be driven to rotate relative to the dosing rod; A driving mechanism 1, comprising a moving rod, wherein the moving rod can be driven to rotate the dosing rod and the dosing head; The second driving mechanism has a sliding rod, and the sliding rod can be driven to drive the movable tentacle to rotate.

2. The anorectal medication device according to claim 1, characterized in that: The driving mechanism 1 includes a moving rod, a center wheel, a planetary wheel, a ring gear and a driving member. The planetary wheel is respectively meshed with the center wheel and the ring gear. The ring gear is coaxially fixed to the dosing rod. A plurality of planetary wheels are arranged at intervals along the circumferential direction. The center wheel can be driven to rotate. The moving rod is coaxially arranged on the planetary wheel. The moving rod is fixedly connected to the dosing head. The driving member is used to drive the center wheel to rotate.

3. The anorectal medication device according to claim 2, characterized in that: An airbag portion is arranged between the medication rod and the movable tentacle. The airbag portion can be driven to expand by inflation or contract by degassing. The expansion or contraction of the airbag portion can drive the movable tentacle to rotate.

4. The anorectal medication device according to claim 2, characterized in that: The second driving mechanism includes a driving source, a rotating wheel, a crank, a slider and a sliding rod. The slider is axially slidably arranged in the dosing rod, and the sliding rod is rotatably arranged in the sliding block. The driving source is used to drive the rotating wheel to rotate. The crank is eccentrically arranged on the rotating wheel and is rotatably connected to the slider. The sliding rod drives the movable tentacle to rotate during the axial reciprocating movement.

5. The anorectal medication device according to claim 4, characterized in that: The rotating wheel includes an inner wheel and an outer wheel, the outer contour of the inner wheel is circumferentially provided with a protrusion, the inner contour of the outer wheel is circumferentially provided with a recessed portion adapted to the protrusion, the protrusion and the recessed portion cooperate with each other, the recessed portion or the protrusion is made of elastic material so that the recessed portion can rotate relative to the protrusion, and the driving source is used to drive the inner wheel to rotate.

6. The anorectal medication device according to claim 1, characterized in that: An anti-backflow mechanism is arranged on the top of the dosing head, and the anti-backflow mechanism includes a telescopic rod and a rotating rod rotatably arranged on the telescopic rod. A plurality of rotating rods are arranged at intervals along the circumference, and a flexible connecting part is arranged between adjacent rotating rods. The rotating rod can be driven to open or contract, and the telescopic rod can be driven to extend and extend from the dosing head or contract into the dosing head.

7. The anorectal medication device according to claim 6, characterized in that:. A camera is arranged on the top of the telescopic rod.

8. The anorectal medication device according to claim 1, characterized in that: The movable tentacle has a plurality of flexible portions conforming to the anal sinus.

9. The anorectal medication device according to claim 1, characterized in that: The dosing rod is provided with scale lines, and the outer contour of the dosing rod is provided with soft tentacles in an array.

10. The anorectal medication device according to claim 1, characterized in that: The circumference of the drug delivery head is inwardly recessed to form a recess, and the recess is used to accommodate residues in the anus and intestines.

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