Anorectal treatment drug delivery device

Abstract

The present invention relates to the field of anorectal drug delivery, and more specifically, to an anorectal therapeutic drug delivery device, comprising a support frame, an arc-shaped arm plate, and a film applicator fixedly mounted on the inner sidewalls of two sets of arc-shaped arm plates, wherein the inner sidewalls of the film applicator are respectively movably sleeved with a rotating rod and a transmission slide rod at the edge positions on both sides, and a gelatin film is movably sleeved on the outer surfaces of the rotating rod and the transmission slide rod, and the interior of the film applicator is filled with a polyhydroxyalkanoate adhesive. The arc-shaped arm plate is used to expand the interior of the anorectal region, and at this time, the injection barrel is used to apply ointment to the wounds and damaged areas inside the anorectal region at specific points, and the ointment is evenly applied. At this time, tweezers are used to pull the surface of one side of the gelatin film. As the gelatin film is pulled and moved on the surface of the rotating rod, the polyhydroxyalkanoate adhesive can be repeatedly applied to the surface of the gelatin film.

Description

Technical Field

[0001] The invention belongs to the technical field of anorectal drug delivery, in particular to an anorectal therapeutic drug delivery device. Background Art

[0002] Anorectal diseases refer to diseases that occur in the anus and large intestine, with the most common occurrence in the anorectal region. Since Western medicine is ineffective in treating anorectal diseases and has obvious adverse reactions, integrated traditional Chinese medicine treatment has received increasing attention. Furthermore, during traditional Chinese medicine anorectal treatment, it is often necessary to administer medication to patients. However, there are still some problems with existing medication delivery devices during use.

[0003] A patent with the publication number CN115430025B discloses a drug delivery device for anorectal treatment in traditional Chinese medicine, which specifically relates to the field of anorectal treatment technology, including a drug delivery structure, wherein the outside of the drug delivery structure is fixedly connected to a drug-blocking inflatable ring, and the inside of the drug delivery structure is provided with a delivery tube, and one end of the delivery tube is connected to a drug storage structure for storing and pushing drugs. When in use, the present invention uses one hand to move the drug delivery structure and the drug-blocking inflatable ring into the patient's anorectal area, and the other hand presses the pressing handle to provide gas power. At the same time, the use position can be adjusted with one hand, thereby facilitating the pushing of the medicine into the anorectal lesion, and inflating the drug-blocking inflatable ring by adjusting the gas to prevent the outflow of the medicine, thereby ensuring the efficacy of the medicine, and facilitating the user to complete the drug delivery operation with both hands. At the same time, the drug delivery device is relatively small in size, which is convenient for direct use according to the patient's anorectal position, thereby improving the convenience of using the drug delivery device.

[0004] In the current existing technology, when administering the drug to the anorectal area, the ointment is squeezed and injected directly into the anorectal area through a syringe. However, the anorectal area has a certain contractility, so that after the syringe is withdrawn, the squeezing of the anorectal area will squeeze the ointment out or squeeze it deep into the anorectal area, resulting in less ointment in the area where the ointment is needed. In particular, for some damaged areas inside the anorectal area, less ointment will not easily lead to wound healing, and it will also cause feces inside the anorectal area to directly contact the wound, leading to secondary infection.

[0005] To this end, the present invention provides an anorectal therapeutic drug delivery device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: an anorectal therapeutic drug delivery device according to the present invention comprises a support frame and an arc-shaped arm plate and a film applicator fixedly mounted on the inner wall surfaces of the two sets of arc-shaped arm plates, the inner wall surface of the film applicator and the edges on both sides are movably sleeved with a rotating rod and a transmission slide rod, the outer surfaces of the rotating rod and the transmission slide rod are movably sleeved with a gelatin film, the interior of the film applicator is filled with a polyhydroxyalkanoate adhesive, the top inner wall surface of the film applicator and the top edge position of the transmission slide rod are provided with a medicine application arc plate, the top surface of the film applicator and the edge position of the medicine application arc plate are provided with a limiting groove, and the outer surface of the limiting groove is movably sleeved with a sliding cutting knife;

[0008] Medicine injection cylinders are arranged on the edge positions of both sides of the arc-shaped arm plate.

[0009] Preferably, a limiting sleeve is provided on the outer surface of the transmission slide rod, an extrusion burr is fixedly connected to the outer surface of the limiting sleeve, and a groove is provided on the outer surface of the gelatin film.

[0010] Preferably, a drug discharge hole is provided on half of the outer surface of the drug injection barrel, and an extrusion barrel is movably sleeved on the inner wall surface of the drug injection barrel.

[0011] Preferably, a limiting arm plate is provided on the top surface of the support frame, and a push rod is fixedly connected to the inner wall surface of the extrusion cylinder.

[0012] Preferably, a threaded rod is movably sleeved on the inner wall surface of the support frame and the limiting arm plate, and a rotating threaded ring is movably sleeved on the outer surface of the threaded rod and the inner thread of the limiting arm plate.

[0013] Preferably, a lifting block is fixedly connected to the outer surface of the top end of the threaded rod, and a limiting sliding strip is provided on the top surface of the lifting block.

[0014] Preferably, a limiting ring is slidably sleeved on the top surface of the limiting slide bar, and limiting blocks are symmetrically fixedly installed on the inner wall surfaces on both sides of the limiting ring, and the outer surface of the injection barrel is movably sleeved on the inner wall surface of the limiting block.

[0015] Preferably, a swing shaft is swingably connected to the upper and lower inner wall surfaces of the limiting ring, and one end surface of the swing shaft is fixedly connected to the outer surface of the arc-shaped arm plate.

[0016] Preferably, an elastic pushing wire is fixedly connected to the inner wall surface of one end of the arc-shaped arm plate, and an arc-shaped ring is movably sleeved on the outer surface of the arc-shaped arm plate, and the position of the arc-shaped ring is set at the outer edge position of the elastic pushing wire.

[0017] Preferably, lighting lamps are fixedly connected to the inner wall surfaces on both sides of the limiting ring, and the positions of the lighting lamps are set at the top edge positions of the limiting block.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The anorectal treatment drug delivery device of the present invention is used in conjunction with an arc-shaped arm plate to expand the interior of the anorectal region. At this time, an injection cartridge is used to apply ointment to wounds and damaged areas within the anorectal region at designated locations, and the ointment is evenly applied. At this time, tweezers are used to pull one side of the gelatin film. As the gelatin film is pulled and moved on the surface of the rotating rod, a polyhydroxyalkanoate adhesive can be repeatedly applied to the surface of the gelatin film. The pulled-out gelatin film is then attached to the outer surface of the ointment. The adhesive properties of the polyhydroxyalkanoate adhesive are used to adhere the gelatin film to the surface of the anorectal region, thereby wrapping the ointment and reducing the effect of the ointment flowing out due to squeezing.

[0020] 2. The anorectal therapeutic drug delivery device described in the present invention, when the gelatin film is pulled out on the surface of the rotating rod, the transmission slide rod is used to limit the moving direction of the gelatin film, so that the gelatin film moves vertically upward, and the surface of the gelatin film is clamped by the medicine-applying curved plate. At the same time, the medicine-applying curved plate is used to scrape off and evenly apply excess polyhydroxyalkanoate adhesive on the surface of the gelatin film. When the gelatin film is attached to the inner wall of the anorectal, the sliding cutting knife is used to slide inside the limiting groove to cut off the excess gelatin film, thereby preventing the excess gelatin film from being exposed to the outside and contacting the inner wall of the anorectal, which would cause contamination of the gelatin film.

[0021] 3. In the anorectal treatment medication device described in the present invention, when the gelatin film slides on the surface of the transmission slide rod, the extrusion ridges on the outer surface of the limiting sleeve cooperate to increase the contact force and adhesion force between the gelatin film and the surface of the transmission slide rod, so that multiple grooves appear on the surface of the gelatin film when squeezed. Excess polyhydroxyalkanoate adhesive inside the grooves is discharged under the pressure of the applicator arc plate. When the gelatin film is attached to the inner wall of the anorectal cavity, excess liquid medicine on the inner wall of the anorectal cavity is squeezed by the gelatin film and enters the grooves. This allows a portion of the ointment to remain on the surface of the anorectal cavity or wound, maintaining cleanliness while achieving a continuous ointment supply effect.

[0022] 4. The anorectal treatment and drug delivery device described in the present invention moves the support frame between the patient's legs. At this time, the threaded collar is rotated so that the threaded rod is adjusted in height under the guidance of the rotating threaded collar, so that the arc-shaped arm plate can be at the same level as the anus. At this time, the limiting collar slides on the surface of the limiting slide bar, so that one end of the arc-shaped arm plate extends into the anus. Since the tip of the arc-shaped arm plate is aggregated under the elastic force of the elastic pushing wire, one end of the arc-shaped arm plate is in a contracted state. At this time, lubricating oil is applied on the surface of the arc-shaped arm plate, which can make the arc-shaped arm plate enter the anus more smoothly. When the arc-shaped arm plate enters the anus, the anus will be gradually and slightly stretched, which will not cause too much discomfort.

[0023] 5. The anorectal treatment and drug delivery device described in the present invention, when one end of the arc-shaped arm plate enters the inside of the anus, cooperates with the arc-shaped ring to slide on the tail end of the arc-shaped arm plate, thereby compressing the elastic push wire, and at the same time making the arc-shaped arm plate flip and pry with the swing shaft as the axis point, thereby slightly opening the anus, making the anus in a hole state, and at the same time using a lighting lamp to illuminate the inside of the anus, so that the doctor can accurately observe the effect of the wound position. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 is a perspective view of the present invention;

[0026] Figure 2 This is a three-dimensional diagram of the lifting support frame in the present invention;

[0027] Figure 3 is a sectional perspective view of the film applicator of the present invention;

[0028] Figure 4 It is a three-dimensional diagram of a cut gelatin film in the present invention;

[0029] Figure 5 It is a three-dimensional diagram of the transmission slide bar in the present invention;

[0030] Figure 6 It is a three-dimensional diagram of the groove in the present invention;

[0031] Figure 7 It is a partially cutaway perspective view of the push rod in the present invention;

[0032] Figure 8 It is a three-dimensional diagram of the arc-shaped arm plate of the present invention when it is unfolded and folded.

[0033] In the figure: 11, support frame; 111, limiting arm plate; 112, rotating threaded ring; 113, threaded rod; 114, lifting block; 115, limiting slide; 12, limiting ring; 121, swinging shaft; 122, arc-shaped arm plate; 123, lighting lamp; 124, limiting block; 125, injection barrel; 1251, discharge hole; 1252, extrusion barrel; 1253, pushing rod; 126, arc-shaped ring; 127, elastic pushing wire; 13, film applicator; 131, rotating rod; 132, gelatin film; 133, arc-shaped plate for applying medicine; 134, limiting groove; 135, sliding cutting knife; 136, transmission slide; a1, limiting sleeve; a2, extrusion ridge; a3, groove; 137, polyhydroxyalkanoate adhesive. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0035] like Figures 1 to 8 As shown, an anorectal therapeutic drug delivery device according to an embodiment of the present invention comprises a support frame 11 and an arcuate arm plate 122, and a film applicator 13 fixedly mounted on the inner wall surfaces of the two sets of arcuate arm plates 122. A rotating rod 131 and a transmission slide 136 are movably sleeved on the inner wall surface of the film applicator 13 and at the edge positions on both sides. A gelatin film 132 is movably sleeved on the outer surfaces of the rotating rod 131 and the transmission slide 136. The interior of the film applicator 13 is filled with a polyhydroxyalkanoate adhesive 137. A medicine-applying arcuate plate 133 is provided on the top inner wall surface of the film applicator 13 and at the top edge position of the transmission slide 136. A limiting groove 134 is provided on the top surface of the film applicator 13 and at the edge position of the medicine-applying arcuate plate 133. A sliding cutting knife 135 is movably sleeved on the outer surface of the limiting groove 134.

[0036] Drug injection cylinders 125 are provided on both side edges of the arc-shaped arm plate 122;

[0037] A limiting sleeve a1 is provided on the outer surface of the transmission slide rod 136 , an extrusion burr a2 is fixedly connected to the outer surface of the limiting sleeve a1 , and a groove a3 is provided on the outer surface of the gelatin film 132 .

[0038] The arc-shaped arm plate 122 is used to expand the inside of the anorectal area. At this time, the ointment is applied to the wound and damaged area inside the anorectal area with the injection barrel 125, and the ointment is evenly applied. At this time, the surface of one side of the gelatin film 132 is pulled by tweezers. As the gelatin film 132 is pulled and moved on the surface of the rotating rod 131, the polyhydroxyalkanoate adhesive 137 can be repeatedly applied to the surface of the gelatin film 132, and the pulled-out gelatin film 132 is attached to the outer surface of the ointment. At this time, the adhesiveness of the polyhydroxyalkanoate adhesive 137 is used to adhere the gelatin film 132 to the surface of the anorectal area, thereby wrapping the ointment and reducing the effect of the ointment flowing out due to squeezing.

[0039] After the gelatin film 132 is pulled out on the surface of the rotating rod 131, the transmission slide rod 136 is used to limit the moving direction of the gelatin film 132, so that the gelatin film 132 moves vertically upward, and the surface of the gelatin film 132 is clamped by the medicine-applying curved plate 133. At the same time, the medicine-applying curved plate 133 is used to scrape off and evenly apply the excess polyhydroxyalkanoate adhesive 137 on the surface of the gelatin film 132. When the gelatin film 132 is attached to the inner wall of the anus and intestine, the sliding cutting knife 135 is used to slide inside the limiting groove 134 to cut off the excess gelatin film 132, so as to prevent the excess gelatin film 132 from being exposed to the outside and contacting the inner wall of the anus and intestine, thereby causing contamination of the gelatin film 132.

[0040] When the gelatin film 132 slides on the surface of the transmission slide 136, the extrusion ridges a2 on the outer surface of the limiting sleeve a1 increase the contact force and the adhesion force with the surface of the transmission slide 136, so that a plurality of grooves a3 appear on the surface of the gelatin film 132 when squeezed, and the excess polyhydroxyalkanoate adhesive 137 inside the groove a3 will be discharged under the squeezing of the medicine arc plate 133. When the gelatin film 132 is attached to the inner wall of the anus and rectum, the excess liquid medicine on the inner wall of the anus and rectum will enter the inside of the groove a3 under the squeezing of the gelatin film 132, so that a part of the ointment can always be on the surface of the anus and rectum or the wound, maintaining cleanliness while achieving the effect of continuous ointment supply.

[0041] like Figures 1 to 8As shown, a threaded rod 113 is movably sleeved on the inner wall surface of the support frame 11 and the limiting arm plate 111, and a rotating threaded ring 112 is movably sleeved on the outer surface of the threaded rod 113 and the internal thread of the limiting arm plate 111. A lifting block 114 is fixedly connected to the outer surface of the top end of the threaded rod 113, and a limiting slide 115 is provided on the top surface of the lifting block 114. The limiting ring 12 is slidably sleeved on the top surface of the limiting slide 115. The limiting blocks 124 are symmetrically fixedly installed on the inner wall surfaces on both sides of the limiting ring 12, and the outer surface of the injection cartridge 125 is movably sleeved on the limiting block 124. The inner wall surface, the upper and lower inner wall surfaces of the limiting ring 12 are swingably connected with a swing shaft 121, one end surface of the swing shaft 121 is fixedly connected to the outer surface of the arc arm plate 122, and an elastic pushing wire 127 is fixedly connected to the inner wall surface of one end of the arc arm plate 122, and an arc ring 126 is movably sleeved on the outer surface of the arc arm plate 122, and the position of the arc ring 126 is set at the outer edge position of the elastic pushing wire 127, and the inner wall surfaces on both sides of the limiting ring 12 are fixedly connected with a lighting lamp 123, and the position of the lighting lamp 123 is set at the top edge position of the limiting block 124.

[0042] The support frame 11 is moved between the patient's legs. At this time, the threaded ring 112 is rotated so that the threaded rod 113 is adjusted in height under the guidance of the rotating threaded ring 112, so that the arc arm plate 122 can be at the same level as the anus. At this time, the limiting ring 12 slides on the surface of the limiting slide 115, so that one end of the arc arm plate 122 extends into the anus. Since the tip of the arc arm plate 122 is pushed together by the elastic force of the elastic pushing wire 127, one end of the arc arm plate 122 is in a contracted state. At this time, lubricating oil is applied on the surface of the arc arm plate 122, which can make the arc arm plate 122 enter the anus more smoothly. When the arc arm plate 122 enters the anus, the anus will be gradually slightly stretched, which will not cause too much discomfort.

[0043] When one end of the arc-shaped arm plate 122 enters the anus, the arc-shaped ring 126 slides on the tail end of the arc-shaped arm plate 122, thereby compressing the elastic push wire 127. At the same time, the arc-shaped arm plate 122 is turned and pried with the swing shaft 121 as the axis point, thereby slightly opening the anus, making the anus in a hole state. At the same time, the lighting lamp 123 is used to illuminate the inside of the anus, so that the doctor can accurately observe the wound location.

[0044] Fill the injection barrel 125 with enough ointment, and insert the injection barrel 125 into the limit block 124, so that the injection barrel 125 can extend inward at a horizontal angle. At this time, the injection barrel 125 is located inside the two sets of arc-shaped arm plates 122 when it moves, so that one end of the injection barrel 125 will not touch the inner wall of the steel door, thereby greatly reducing the discomfort.

[0045] like Figures 1 to 2 and Figure 7 As shown, a drug discharge hole 1251 is provided on half of the outer surface of the drug injection barrel 125, an extrusion barrel 1252 is movably sleeved on the inner wall of the drug injection barrel 125, a limiting arm plate 111 is provided on the top surface of the support frame 11, and a push rod 1253 is fixedly connected to the inner wall of the extrusion barrel 1252.

[0046] When one end of the injection barrel 125 is located at the wound, the pushing rod 1253 is used to push the extrusion barrel 1252, and the ointment is squeezed out using the discharge hole 1251. Since the discharge hole 1251 is only provided on half of the surface of the injection barrel 125, the ointment can only be squeezed out from half of the position. At this time, the squeezed ointment can be widely applied to the inner wall of the anus without excessive waste.

[0047] Working principle: When the patient lies down, the support frame 11 is moved between the patient's legs. At this time, the threaded ring 112 is rotated so that the threaded rod 113 is adjusted in height under the guidance of the rotating threaded ring 112, so that the arc-shaped arm plate 122 can be at the same level as the anus. At this time, the limiting ring 12 slides on the surface of the limiting slide 115, so that one end of the arc-shaped arm plate 122 extends into the inside of the anus. At this time, the arc-shaped ring 126 slides on the tail end of the arc-shaped arm plate 122, so that the arc-shaped arm plate 122 is pried up with the swing shaft 121 as the axis point, and then the anus is slightly opened. At the same time, the lighting lamp 123 is used to illuminate the inside of the anus, so that the doctor can accurately Observe the wound position, and at this time, cooperate with the internal filling of the injection barrel 125 to extract enough ointment, and insert the injection barrel 125 into the inner part of the limit block 124, so that the injection barrel 125 can extend inward at a horizontal angle. When one end of the injection barrel 125 is located at the wound, cooperate with the pushing rod 1253 to push the extrusion barrel 1252, and use the medicine discharge hole 1251 to squeeze out the ointment, then pull out the injection barrel 125, and use tweezers to pull out the gelatin film 132 on the surface of the film applicator 13, so that the surface of the gelatin film 132 can be attached to the surface of the ointment and the wound, and use the gelatin film 132 to separate the feces inside the anus and the ointment, so that the ointment can be absorbed more quickly;

[0048] The arc-shaped arm plate 122 is used to expand the inside of the anorectal area. At this time, the ointment is applied to the wound and damaged area inside the anorectal area with the injection barrel 125, and the ointment is evenly applied. At this time, the surface of one side of the gelatin film 132 is pulled by tweezers. As the gelatin film 132 is pulled and moved on the surface of the rotating rod 131, the polyhydroxyalkanoate adhesive 137 can be repeatedly applied to the surface of the gelatin film 132, and the pulled-out gelatin film 132 is attached to the outer surface of the ointment. At this time, the adhesiveness of the polyhydroxyalkanoate adhesive 137 is used to adhere the gelatin film 132 to the surface of the anorectal area, thereby wrapping the ointment and reducing the effect of the ointment flowing out due to squeezing.

[0049] After the gelatin film 132 is pulled out on the surface of the rotating rod 131, the transmission slide rod 136 is used to limit the moving direction of the gelatin film 132, so that the gelatin film 132 moves vertically upward, and the surface of the gelatin film 132 is clamped by the medicine-applying curved plate 133. At the same time, the medicine-applying curved plate 133 is used to scrape off and evenly apply the excess polyhydroxyalkanoate adhesive 137 on the surface of the gelatin film 132. When the gelatin film 132 is attached to the inner wall of the anus and intestine, the sliding cutting knife 135 is used to slide inside the limiting groove 134 to cut off the excess gelatin film 132, so as to prevent the excess gelatin film 132 from being exposed to the outside and contacting the inner wall of the anus and intestine, thereby causing contamination of the gelatin film 132.

[0050] When the gelatin film 132 slides on the surface of the transmission slide 136, the extrusion ridges a2 on the outer surface of the limiting sleeve a1 increase the contact force and the adhesion force with the surface of the transmission slide 136, so that a plurality of grooves a3 appear on the surface of the gelatin film 132 when squeezed, and the excess polyhydroxyalkanoate adhesive 137 inside the groove a3 will be discharged under the squeezing of the medicine arc plate 133. When the gelatin film 132 is attached to the inner wall of the anus and rectum, the excess liquid medicine on the inner wall of the anus and rectum will enter the inside of the groove a3 under the squeezing of the gelatin film 132, so that a part of the ointment can always be on the surface of the anus and rectum or the wound, maintaining cleanliness while achieving the effect of continuous ointment supply.

[0051] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An anorectal therapeutic drug delivery device, comprising a support frame (11), an arc-shaped arm plate (122), and a film applicator (13) fixedly mounted on the inner wall surface of the two sets of arc-shaped arm plates (122), characterized in that: The inner wall surface of the film laminator (13) and the edge positions on both sides are movably sleeved with a rotating rod (131) and a transmission slide rod (136), and the outer surfaces of the rotating rod (131) and the transmission slide rod (136) are movably sleeved with a gelatin film (132). The interior of the film laminator (13) is filled with a polyhydroxyalkanoate adhesive (137). The top inner wall surface of the film laminator (13) and the edge position of the transmission slide rod (136) are provided with a medicine applying curved plate (133). The top surface of the film laminator (13) and the edge position of the medicine applying curved plate (133) are provided with a limiting groove (134), and the outer surface of the limiting groove (134) is movably sleeved with a sliding cutting knife (135); Drug injection barrels (125) are provided on both side edges of the arc-shaped arm plate (122).

2. The anorectal therapeutic drug delivery device according to claim 1, characterized in that: A limiting sleeve (a1) is provided on the outer surface of the transmission slide rod (136), an extrusion burr (a2) is fixedly connected to the outer surface of the limiting sleeve (a1), and a groove (a3) ​​is provided on the outer surface of the gelatin film (132).

3. The anorectal therapeutic drug delivery device according to claim 2, characterized in that: A drug discharge hole (1251) is provided on half of the outer surface of the drug injection barrel (125), and an extrusion barrel (1252) is movably sleeved on the inner wall of the drug injection barrel (125).

4. The anorectal therapeutic drug delivery device according to claim 3, characterized in that: A limiting arm plate (111) is provided on the top surface of the support frame (11), and a push rod (1253) is fixedly connected to the inner wall surface of the extrusion cylinder (1252).

5. The anorectal therapeutic drug delivery device according to claim 4, characterized in that: A threaded rod (113) is movably sleeved on the inner wall surfaces of the support frame (11) and the limiting arm plate (111), and a rotating threaded ring (112) is movably sleeved on the outer surface of the threaded rod (113) and the inner thread of the limiting arm plate (111).

6. The anorectal therapeutic drug delivery device according to claim 5, characterized in that: A lifting block (114) is fixedly connected to the outer surface of the top end of the threaded rod (113), and a limiting slide bar (115) is provided on the top surface of the lifting block (114).

7. The anorectal therapeutic drug delivery device according to claim 6, characterized in that: A limiting ring (12) is slidably sleeved on the top surface of the limiting slide (115), and limiting blocks (124) are symmetrically fixedly installed on the inner wall surfaces on both sides of the limiting ring (12), and the outer surface of the injection barrel (125) is movably sleeved on the inner wall surface of the limiting block (124).

8. The anorectal therapeutic drug delivery device according to claim 7, characterized in that: A swing shaft (121) is swingably connected to the upper and lower inner wall surfaces of the limiting ring (12), and one end surface of the swing shaft (121) is fixedly connected to the outer surface of the arc-shaped arm plate (122).

9. The anorectal therapeutic drug delivery device according to claim 8, characterized in that: An elastic push wire (127) is fixedly connected to the inner wall surface of one end of the arc-shaped arm plate (122), and an arc-shaped ring (126) is movably sleeved on the outer surface of the arc-shaped arm plate (122), and the position of the arc-shaped ring (126) is set at the outer edge position of the elastic push wire (127).

10. The anorectal therapeutic drug delivery device according to claim 9, characterized in that: Illuminating lamps (123) are fixedly connected to the inner wall surfaces on both sides of the limiting collar (12), and the position of the illuminating lamps (123) is set at the top edge position of the limiting block (124).

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