Rectal administration device

Abstract

The invention provides a rectal administration device which is used for solving the problem that the treatment effect is affected by poor absorption or non-uniform distribution of medicine in the digestive tract in the intestinal disease treatment mode in the prior art. The dosing device comprises a shell, a plurality of pumping mechanisms are fixed to the shell, each pumping mechanism comprises a fixing frame, a fixing groove is formed in the front end of the fixing frame and can contain an output pipe, a liquid outlet is formed in one end of the output pipe, a push plate is arranged in the output pipe in a sealed sliding mode, a push rod penetrating through the output pipe is fixed to the push plate, and a telescopic transmission mechanism is arranged in the fixing frame. An output shaft of the telescopic transmission mechanism drives the push rod through a push rod fixator, the fixing groove is provided with an output pipe fixator, the liquid outlet is connected with an infusion catheter, and a plurality of side holes are arrayed in the side wall of the end, away from the liquid outlet, of the infusion catheter. The device is convenient to carry, operate and use, the treatment flexibility is improved, meanwhile, part of components such as the medicine pushing device can be repeatedly used, the medical cost is reduced, and generation of medical waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rectal drug administration auxiliary equipment, in particular to a rectal drug administration device. Background Art

[0002] Ulcerative colitis (UC) is a complex intestinal inflammatory disease. UC is characterized by its protracted course, slow treatment effect, high recurrence rate and long treatment course. It mainly attacks young and middle-aged people. The core area of ​​lesions is concentrated in the colon mucosa, especially the rectum and distal colon. Its typical pathological changes include congestion, erosion and even ulcer formation of the mucosa. Patients often face severe symptoms such as frequent diarrhea, mucus, pus and blood in the stool, abdominal pain and tenesmus, which seriously reduce their quality of life. For the treatment of UC, the current medical community has not yet found a radical cure, and mostly adopts a comprehensive treatment strategy, covering oral medications, intravenous administration, local suppositories, rectal drug enemas and other means. However, these methods all have limitations to varying degrees: oral medications need to be absorbed by the digestive system, the treatment process is slow and long, and they place an additional burden on organs such as the liver and kidneys. Long-term use can cause liver and kidney damage, and the effective concentration of the drug is significantly reduced when it reaches the lesion, and the clinical efficacy is greatly reduced; although intravenous administration is rapid, the drug's adverse reactions increase after systemic circulation, and the concentration and effect in the target organs are weakened. Similarly, long-term use of the drug will also damage liver and kidney function; although suppositories can directly reach the site of rectal lesions, their drug-carrying capacity is limited, and the treatment range is limited to the lower rectum. The scope of application is limited, and it cannot reach the rectum and colon. It also takes a long time to take effect. In addition, the production process is complicated and the cost is high, making it difficult to popularize. Summary of the invention

[0003] The present invention provides a rectal drug delivery device, which solves the problem that the existing intestinal disease treatment methods, such as oral medication, have poor drug absorption and uneven distribution in the digestive tract, resulting in insufficient drug concentration reaching the lesion site, thus affecting the treatment effect.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A rectal medication device comprises a shell, on which a plurality of pumping mechanisms are fixed, the pumping mechanisms comprising a fixing frame, a fixing groove is provided at the front end of the fixing frame, the fixing groove can accommodate an output tube, one end of the output tube is provided with a liquid outlet, a push plate is provided in a sealing and sliding manner in the output tube, a push rod penetrating the output tube is fixed at one end of the push plate away from the liquid outlet, a telescopic transmission mechanism is provided in the fixing frame, an output shaft of the telescopic transmission mechanism penetrates the fixing frame, one end of the output shaft disposed outside the fixing frame is fixedly connected with a push rod fixture, an output tube fixture is provided at one side of the fixing groove, the output tube fixture can fix the output tube in the fixing groove, an infusion catheter is connected to the liquid outlet, a fixing device is sleeved on the infusion catheter, and a side wall array at one end of the infusion catheter away from the liquid outlet has a plurality of side holes.

[0006] Furthermore, the output tube holder comprises a slide groove arranged on a fixing frame, a slider slides in the slide groove, an output tube fixing plate is fixed on the slider, the output tube fixing plate can cooperate with the fixing groove to clamp the output tube, the end of the slide groove away from the slider is connected to the fixing hole through a small hole, a limit plate slides in the fixing hole, the end of the limit plate close to the slider is fixedly connected to the slider through a connecting rod, a spring is sleeved on the connecting rod, and the spring keeps the limit plate away from the slide groove. Since the slider slides in the slide groove through the spring, the output tube holder can adapt to output tubes of different diameters or sizes, thereby increasing the versatility and practicality of the device.

[0007] Furthermore, the push rod holder includes a support plate fixed on the output shaft, a rotating rod is provided on the support plate, the axis of the rotating rod is parallel to the axis of the output tube, a driving plate is fixed on the rotating rod, a limiting frame is fixed on the side of the support plate close to the output tube, two mirror-image clamps are hinged on the limiting frame, the clamps are made of metal with certain elastic deformation characteristics, and the two clamps can clamp the push rod together, an elliptical wheel is fixed on the rotating rod, when the rotating rod drives the long axis of the elliptical wheel to abut against the clamp, the elliptical wheel opens the end of the clamp close to the push rod, and a clamping plate is fixed on the end of the push rod, and the clamping plate can be placed between the clamp and the support plate. The clamping and release of the push rod can be realized by driving the rotating rod to rotate by the driving plate, and the operation is simple.

[0008] Furthermore, a telescopic bin is arranged in the fixed frame, the output shaft is a screw, the telescopic transmission mechanism includes a bracket fixed in the telescopic bin, a worm wheel rotates on the bracket, the screw runs through the worm wheel and the bracket, the worm is matched with the screw wheel through an internal thread, the outer side of the worm wheel is matched with a worm, and the worm is driven by a driving motor. By arranging the telescopic transmission mechanism in the telescopic bin, the structure is compact and occupies little space.

[0009] Furthermore, a variable speed telescopic mechanism mirror-set with the telescopic transmission mechanism is provided in the telescopic bin, and a large gear and a small gear are fixed on the worms of the telescopic transmission mechanism and the variable speed telescopic mechanism, respectively, and the large gear and the small gear are close to each other, and an oblong hole is provided on the fixing frame between the large gear and the small gear, and the driving motor is slidably connected to the outer wall of the fixing frame through a slide rail, and the motor shaft of the driving motor passes through the oblong hole, and a driving gear is fixed to one end of the motor shaft placed in the telescopic bin, and the driving gear can mesh with one of the large gear and the small gear at the same time. The driving motor is slidably connected to the outer wall of the fixing frame along the slide rail, so that the driving gear can easily mesh with the large gear or the small gear, thereby realizing the convenience of the speed change operation.

[0010] Furthermore, the infusion catheter includes a connecting tube, which is connected to a liquid outlet tube through a Y-type connector, the side hole is provided at one end of the liquid outlet tube away from the connecting tube, and the Y-type connector is also sleeved with a detachable sealing cap. Through the cooperation of the Y-type connector and the sealing cap, multiple pumping mechanisms can be easily connected as needed to achieve multi-channel drug delivery. The flexibility of use of the device is improved to adapt to different clinical needs.

[0011] Furthermore, the liquid outlet is provided with a C-shaped clamping opening, the outer side wall of the clamping opening is fixed to one end of the fixing groove near the liquid outlet, a sink is provided at one end of the clamping opening near the liquid outlet, a limiting ring is fixed to one end of the infusion catheter connected to the liquid outlet, the limiting ring is clamped with the sink, and the sink makes the axis of the limiting ring coincide with the axis of the fixing groove and the output tube. Since the designs of the clamping opening, the sink and the limiting ring all have certain guiding and positioning functions, the operation error can be significantly reduced in actual use, thereby avoiding problems such as connection failure or drug leakage caused by improper operation.

[0012] Furthermore, a baffle is provided on the side wall of the fixing frame, and a baffle ring is fixed on one end of the output tube away from the liquid outlet, and the baffle ring can be placed between the baffle and the side wall of the fixing frame. The design of the baffle and the baffle ring simplifies the fixing operation of the output tube, and medical staff can more conveniently place the output tube on the fixing frame, and achieve stable limiting through the cooperation of the baffle and the baffle ring.

[0013] Furthermore, a heating device is provided in the fixing tank. Unstable liquid medicine temperature may cause problems such as drug denaturation, precipitation or crystallization, thereby increasing the risk of treatment. The use of a heating device can significantly reduce these risks and ensure the safety and reliability of the treatment process.

[0014] Furthermore, a handle is hinged on the housing, the output tube is made of a transparent material, and a scale is provided on the side wall of the output tube. The transparent material and the scale can monitor the volume of the liquid medicine in real time, which helps to avoid overdose or underdose of the medicine and ensure the safety of the patient.

[0015] The beneficial effects that this technical solution can produce.

[0016] The present invention is a rectal drug delivery pump designed for the treatment of intestinal diseases such as ulcerative colitis (UC). It integrates multiple advantages such as precise drug delivery, constant temperature maintenance, portable design, and simple operation. It realizes continuous, stable, and constant temperature delivery of drugs through the rectal route, directly reaching the lesion site, thereby improving the treatment effect and reducing systemic side effects. The drug delivery pump is not only easy to operate, but also some components can be reused, which effectively reduces medical costs and reduces the economic burden of patients. Constant speed drug delivery can be achieved through a telescopic transmission mechanism, which helps to ensure that the drug is released at a stable speed at the lesion site, further improving the treatment effect. Through multiple side holes on the side wall of the infusion catheter, the drug solution can be more evenly distributed in the lesion site, optimizing the drug distribution. It helps the lesion site to fully absorb the drug, and improves the absorption efficiency and treatment effect of the drug. By setting a Y-type connector, multiple infusion catheters can be connected in parallel, and a single or multiple pumping mechanisms can be selected as needed to deliver the drug, thereby improving the flexibility and adaptability of drug delivery. It also reduces the number of infusion catheters in the patient's body and improves the comfort of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 is a partial cross-sectional view of the output pipe fixture;

[0020] Figure 3 for Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing frame and the push rod fixing device;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the push rod holder;

[0023] Figure 6 It is a partial cross-sectional view of the telescopic bin;

[0024] Figure 7 for Figure 6 A partial enlarged schematic diagram of point C in the middle;

[0025] Figure 8 is a rear side view of the fixing frame;

[0026] Fig. 9 for Figure 1 A local enlarged schematic diagram of the middle A;

[0027] Fig.10 This is a partial cross-sectional view of the output pipe.

[0028] Wherein: 1. shell, 2. fixing frame, 3. fixing groove, 4. output tube, 5. liquid outlet, 6. push rod, 7. output shaft, 8. push rod holder, 9. output tube holder, 10. infusion catheter, 11. fixing device, 12. side hole, 13. slider, 14. output tube fixing plate, 15. limit plate, 16. spring, 17. support plate, 18. rotating rod, 19. limit frame, 20. clamping plate, 21. driving plate, 22. elliptical wheel, 23. telescopic bin, 24. bracket, 25. worm gear, 26. driving motor, 27. large gear, 28. small gear, 29. oblong hole, 30. driving gear, 31. connecting tube, 32. Y-type connector, 33. sealing cap, 34. clamping mouth, 35. sink, 36. limit ring, 37. baffle, 38. baffle ring, 39. heating device, 40. clamping plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1-4As shown, an embodiment of the present invention provides a rectal drug delivery device, including a shell 1, on which a plurality of pumping mechanisms are fixed, the pumping mechanisms including a fixing frame 2, a fixing groove 3 is provided at the front end of the fixing frame 2, the fixing groove 3 can accommodate an output tube 4, one end of the output tube 4 is provided with a liquid outlet 5, a push plate is provided in a sealing and sliding manner in the output tube 4, and a push rod 6 penetrating the output tube 4 is fixed at the end of the push plate away from the liquid outlet 5, a telescopic transmission mechanism is provided in the fixing frame 2, an output shaft 7 of the telescopic transmission mechanism penetrates the fixing frame 2, and a push rod fixture 8 is fixedly connected to one end of the output shaft 7 placed outside the fixing frame 2, an output tube fixture 9 is provided on one side of the fixing groove 3, the output tube fixture 9 can fix the output tube 4 in the fixing groove 3, the liquid outlet 5 is connected to an infusion catheter 10, a fixing device 11 is sleeved on the infusion catheter 10, and a side wall array at the end of the infusion catheter 10 away from the liquid outlet 5 has a plurality of side holes 12. The fixing device 11 can be an existing binding strap, etc. A card slot can be set on the fixing device 11, and the card slot can facilitate the installation of the infusion catheter 10. The form of the fixing device 11 should not be limited. When the end of the infusion catheter 10 is placed in the rectum, the infusion catheter 10 can be fixed and prevented from falling off. The infusion catheter 10 is made of silicone, which is soft and comfortable, can reduce irritation and discomfort to the patient, and improve the patient's acceptance and comfort. The shell 1 can integrate existing control functions such as drug dosage adjustment, infusion time setting, intelligent alarm system, voice recognition input and soothing music playback.

[0031] During use, the drug liquid is placed at the liquid outlet 5, and the push plate is pulled by the push rod 6 to form a vacuum in the output tube 4, so that the drug is drawn into the output tube 4, and the liquid outlet 5 is connected to the infusion catheter 10, and then the output tube 4 is fixed in the fixing groove 3 by the output tube holder 9 and the push rod holder 8, and then the end of the infusion catheter 10 can be placed in the patient's rectum, thereby ensuring the safety and stability of the drug administration process. Then the telescopic transmission mechanism is started, and the telescopic transmission mechanism pushes the push plate, so that the push plate pushes the drug liquid out of the output tube 4, and passes through the liquid outlet 5, the infusion catheter 10 and the side hole 12 in sequence, so that the drug liquid directly reaches the patient's lesion site, and the multiple side holes 12 can optimize the drug distribution, facilitate the absorption of the drug by the lesion site, thereby improving the drug absorption efficiency and therapeutic effect. The telescopic transmission mechanism can achieve constant speed drug administration, which helps to ensure that the drug is released at a stable speed at the lesion site, further improving the therapeutic effect.

[0032] like Figure 1-3As shown, the output pipe holder 9 includes a slide groove arranged on the fixing frame 2, a slider 13 slides in the slide groove, an output pipe fixing plate 14 is fixed on the slider 13, the output pipe fixing plate 14 can cooperate with the fixing groove 3 to clamp the output pipe 4, the end of the slide groove away from the slider 13 is connected with the fixing hole through a small hole, a limit plate 15 slides in the fixing hole, the end of the limit plate 15 close to the slider 13 is fixedly connected to the slider 13 through a connecting rod, and a spring 16 is sleeved on the connecting rod, and the spring 16 keeps the limit plate 15 away from the slide groove.

[0033] During use, the slider 13 is pulled to drive the connecting rod and the limit plate 15 to compress the spring 16, and the slider 13 drives the output tube fixing plate 14 away from the fixing groove 3. At this time, the output tube 4 can be placed in the output tube fixing plate 14 and the fixing groove 3. After that, by releasing the slider 13, under the elastic force of the spring 16, the connecting rod drives the slider 13 to slide along the slide groove to the fixing hole. When the output tube fixing plate 14 and the fixing groove 3 are both against the output tube 4, the output tube 4 is fixed. When the output tube 4 needs to be replaced or cleaned and maintained, it is only necessary to pull the slider 13 again and take out the output tube 4, which is convenient and quick. The matching clamping of the output tube fixing plate 14 and the fixing groove 3 ensures the stable fixation of the output tube 4 during the drug administration process, and avoids the problem of inaccurate or interrupted drug administration caused by the movement or falling off of the output tube 4. By simply pulling and releasing the slider 13, the installation and fixation of the output tube 4 can be easily completed, which improves the convenience of use.

[0034] like Figure 1 , 4 As shown in Figure 5, the push rod holder 8 includes a support plate 17 fixed on the output shaft 7, a rotating rod 18 is passed through the support plate 17, the axis of the rotating rod 18 is parallel to the axis of the output pipe 4, a driving plate 21 is fixed on the rotating rod 18, a limiting frame 19 is fixed on the side of the support plate 17 close to the output pipe 4, two mirror-image-arranged clamping plates 20 are hinged on the limiting frame 19, the clamping plates 20 are made of metal with certain elastic deformation characteristics, and the two clamping plates 20 can clamp the push rod 6 together, an elliptical wheel 22 is fixed on the rotating rod 18, when the rotating rod 18 drives the long axis of the elliptical wheel 22 to abut against the clamping plate 20, the elliptical wheel 22 causes the end of the clamping plate 20 close to the push rod 6 to open, and a clamping plate 40 is fixed on the end of the push rod 6, and the clamping plate 40 can be placed between the clamping plate 20 and the support plate 17.

[0035] When it is necessary to clamp the push rod 6, the driving plate 21 drives the rotating rod 18 to rotate. When the rotating rod 18 drives the long axis of the elliptical wheel 22 to abut against the clamping plate 20, the elliptical wheel 22 makes the clamping plate 20 close to the end of the push rod 6 open. At this time, the push rod 6 can be placed between the clamping plates 20 to facilitate the insertion of the push rod 6. Then the driving plate 21 can be sent away. At this time, under the action of the elastic deformation characteristics of the clamping plate 20, the clamping plate 20 will cause the elliptical wheel 22 to rotate and make the short diameter of the elliptical wheel 22 abut against the end of the clamping plate 20. At this time, since there is no support from the elliptical wheel 22, the clamping plate 20 recovers under its own elastic deformation characteristics and can provide clamping force for the push rod 6. When the push rod 6 is clamped by the clamping plate 20, the clamping plate 40 can be placed between the clamping plate 20 and the support plate 17, which effectively prevents the push rod 6 from deflecting or shaking during the feeding process, thereby ensuring the accuracy and reliability of the feeding. The elastic deformation characteristics of the clamping plate 20 provide sufficient clamping force while avoiding excessive clamping of the push rod 6. The clamping plate 20 and the elliptical wheel 22 are used in combination to make the entire fixture compact and space-saving.

[0036] like Figure 1 , 2 As shown in , 4 and 7, a telescopic bin 23 is provided in the fixed frame 2, the output shaft 7 is a screw, and the telescopic transmission mechanism includes a bracket 24 fixed in the telescopic bin 23, a worm gear 25 is rotated on the bracket 24, the screw runs through the worm gear 25 and the bracket 24, the worm gear 25 cooperates with the screw through an internal thread, and a worm is connected to the outer side of the worm gear 25, and the worm is driven by a driving motor 26.

[0037] During use, the drive motor 26 drives the worm to rotate, and the worm drives the lead screw to rotate through the worm wheel 25. Through the cooperation of the worm wheel 25 and the lead screw, accurate transmission is achieved, thereby ensuring the movement accuracy of the push rod 6 and the push plate in the output tube 4. The worm gear 25 worm transmission has a self-locking characteristic, so that when the lead screw stops rotating due to external force, it will not slide down by itself due to gravity or other external forces, thereby ensuring the stability of the drug administration process. By adjusting the speed and direction of the drive motor 26, the rotation speed and direction of the lead screw can be easily controlled, thereby achieving flexible adjustment of the drug administration speed and direction, and enhancing the adaptability and flexibility of the device.

[0038] like Figure 1 , 2As shown in Figures 4 and 7, a variable speed telescopic mechanism which is mirror-set to the telescopic transmission mechanism is provided in the telescopic bin 23, and a large gear 27 and a small gear 28 are fixed on the worm of the telescopic transmission mechanism and the variable speed telescopic mechanism respectively. The large gear 27 and the small gear 28 are close to each other, and an oblong hole 29 is provided on the fixing frame 2 between the large gear 27 and the small gear 28. The driving motor 26 is slidably connected to the outer wall of the fixing frame 2 through a slide rail, and the motor shaft of the driving motor 26 passes through the oblong hole 29. A driving gear 30 is fixed on one end of the motor shaft placed in the telescopic bin 23, and the driving gear 30 can be meshed with one of the large gear 27 and the small gear 28 at the same time.

[0039] During use, in order to accurately or quickly adjust the drug delivery amount, the drive motor 26 can be controlled to move along the slide rail, and the drive motor 26 drives the motor shaft to slide along the oblong hole 29, so that the drive gear 30 can drive the screw rod through gears of different diameters. When the drive gear 30 is engaged with the large gear 27, the screw rod can move slowly but accurately. When the drive gear 30 is engaged with the small gear 28, the screw rod can move quickly, meeting the needs of different drug delivery speeds and improving the accuracy and flexibility of drug delivery. In addition, by setting a variable speed telescopic mechanism, additional support can be provided for the screw rod, which enhances the stability of the screw rod during the telescopic process, helps prevent the screw rod from tilting due to uneven force or external factors, thereby ensuring the accuracy and reliability of drug delivery.

[0040] like Figure 1 , 9 As shown, the infusion catheter 10 includes a connecting tube 31, which is connected to a liquid outlet tube through a Y-type connector 32, and the side hole 12 is provided at one end of the liquid outlet tube away from the connecting tube 31. The Y-type connector 32 is also sleeved with a detachable sealing cap 33. In actual use, two pumping mechanisms may need to be used to deliver medicine at the same time. At this time, the sealing cap 33 of the Y-type connector 32 can be unplugged, and the connecting tube 31 of the other pumping mechanism can be connected to the through hole at the sealing cap 33 of the Y-type connector 32. When there are multiple pumping mechanisms for delivering medicine, the other connecting tubes 31 can be connected to a new Y-type connector 32, and the new Y-type connector 32 is connected to the sealing cap 33 of the original Y-type connector 32, thereby realizing the parallel connection of multiple infusion catheters 10, and a single or multiple pumping mechanisms can be selected for drug delivery as needed, thereby improving the flexibility and adaptability of drug delivery. It also reduces the number of infusion catheters 10 in the patient's body, improves the patient's comfort, and reduces the overall length of the infusion catheter 10, making the infusion catheter 10 more compact and neat, which helps to reduce the interference and inconvenience caused by too many infusion catheters 10 during the infusion process.

[0041] like Figure 2 , 4As shown in Figure 10, a C-shaped clamping opening 34 is provided at the liquid outlet 5, and the outer wall of the clamping opening 34 is fixed to one end of the fixing groove 3 close to the liquid outlet 5, and a sink 35 is provided at one end of the clamping opening 34 close to the liquid outlet 5. A limiting ring 36 is fixed to the end of the infusion catheter 10 connected to the liquid outlet 5, and the limiting ring 36 is clamped with the sink 35. The sink 35 makes the axis of the limiting ring 36 coincide with the axis of the fixing groove 3 and the output tube 4. During use, the infusion catheter 10 is placed in the clamping opening 34, and the infusion catheter 10 is fixed by the clamping connection between the limiting ring 36 and the sink 35, and then the output tube 4 is placed in the C-shaped clamping opening 34 to limit the output tube 4, and the limiting ring 36 and the sink 35 are clamped to make the limiting ring 36 and the output tube 4 quickly correspond, and then the outlet port 5 and the infusion catheter 10 can be connected by pushing the output tube 4, which simplifies the connection operation and improves work efficiency. It can also achieve fast and stable fixation of the infusion catheter 10, improve the reliability and stability of the connection, and ensure that the drug can be smoothly infused through the infusion catheter 10.

[0042] like Figure 4 As shown, a baffle 37 is provided on the side wall of the fixing frame 2, and a baffle ring 38 is fixed on one end of the output tube 4 away from the liquid outlet 5, and the baffle ring 38 can be placed between the baffle 37 and the side wall of the fixing frame 2. The cooperation between the baffle 37 and the baffle ring 38 facilitates the axial limit of the output tube 4, prevents the output tube 4 from sliding along the fixing groove 3, ensures the fixed position of the output tube 4 during the drug delivery process, thereby ensuring the accuracy of the drug delivery amount, helping to improve the accuracy of drug delivery, and ensuring that the drug can be accurately delivered to the patient according to the predetermined dose and time.

[0043] like Figure 1 , 2 As shown in Figures 4 and 5, a heating device 39 is provided in the fixing groove 3. The heating device 39 can be an existing heater, etc., and the heating device 39 is connected to a constant temperature control system. By heating the liquid medicine by the heating device 39 and maintaining it within a constant temperature range, the chemical stability and biological activity of the medicine can be ensured, which helps to ensure the efficacy of the medicine and reduce side effects, so that patients can obtain better treatment effects. Too cold or too hot liquid medicine may cause discomfort to the patient. The heating device 39 can maintain the liquid medicine within a comfortable temperature range, thereby improving the patient's acceptance and satisfaction.

[0044] like Figure 1 , 4As shown, a handle is hinged on the housing 1, and the output tube 4 is made of a transparent material, and a scale is provided on the side wall of the output tube 4. The handle hinged on the housing 1 makes the entire device easier to carry and move, thereby improving the portability and practicality of the device. The output tube 4 is made of a transparent material, so that medical staff and patients can directly observe the remaining volume of the liquid medicine, which not only helps to accurately grasp the progress of drug delivery, but also avoids the waste or shortage of liquid medicine, thereby ensuring the accuracy and continuity of the treatment effect. Through intuitive observation and precise control, patients can receive treatment with more confidence and reduce anxiety and uneasiness caused by uncertainty.

[0045] In addition to being used for the treatment of ulcerative colitis, the present invention can also be used for the treatment of rectal bleeding, rectal erosion, and pediatric (pneumonia, fever), gynecological (inflammation) and other diseases.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rectal medication device, comprising a housing (1), characterized in that: A plurality of pumping mechanisms are fixed on the housing (1), the pumping mechanisms comprising a fixing frame (2), a fixing groove (3) is provided at the front end of the fixing frame (2), the fixing groove (3) can accommodate an output pipe (4), one end of the output pipe (4) is provided with a liquid outlet (5), a push plate is sealed and slidably provided inside the output pipe (4), a push rod (6) penetrating the output pipe (4) is fixed at one end of the push plate away from the liquid outlet (5), a telescopic transmission mechanism is provided inside the fixing frame (2), an output shaft (7) of the telescopic transmission mechanism penetrates A fixing frame (2), one end of the output shaft (7) disposed outside the fixing frame (2) is fixedly connected to a push rod holder (8), one side of the fixing groove (3) is provided with an output tube holder (9), the output tube holder (9) can fix the output tube (4) in the fixing groove (3), the liquid outlet (5) is connected to an infusion catheter (10), a fixing device (11) is sleeved on the infusion catheter (10), and a side wall array of the infusion catheter (10) at one end away from the liquid outlet (5) is provided with a plurality of side holes (12).

2. A rectal medication device according to claim 1, characterized in that: The output pipe holder (9) comprises a slide groove arranged on a fixing frame (2), a slider (13) sliding in the slide groove, an output pipe fixing plate (14) fixed on the slider (13), the output pipe fixing plate (14) can cooperate with the fixing groove (3) to clamp the output pipe (4), one end of the slide groove away from the slider (13) is connected to the fixing hole through a small hole, a limit plate (15) sliding in the fixing hole, one end of the limit plate (15) close to the slider (13) is fixedly connected to the slider (13) through a connecting rod, a spring (16) is sleeved on the connecting rod, and the spring (16) makes the limit plate (15) away from the slide groove.

3. A rectal medication device according to claim 1, characterized in that: The push rod holder (8) comprises a support plate (17) fixed on the output shaft (7), a rotating rod (18) passing through the support plate (17), the axis of the rotating rod (18) being parallel to the axis of the output pipe (4), a driving plate (21) being fixed on the rotating rod (18), a limiting frame (19) being fixed on one side of the support plate (17) close to the output pipe (4), two mirror-image clamping plates (20) being hinged on the limiting frame (19), the clamping plates (20) being a plurality of clamping plates having a plurality of The invention relates to a metal material with certain elastic deformation characteristics. Two clamping plates (20) cooperate to clamp the push rod (6). An elliptical wheel (22) is fixed on the rotating rod (18). When the rotating rod (18) drives the long axis of the elliptical wheel (22) to abut against the clamping plate (20), the elliptical wheel (22) causes one end of the clamping plate (20) close to the push rod (6) to open. A clamping plate (40) is fixed at the end of the push rod (6). The clamping plate (40) can be placed between the clamping plate (20) and the support plate (17).

4. A rectal medication device according to claim 1, characterized in that: A telescopic bin (23) is arranged in the fixed frame (2), the output shaft (7) is a screw rod, and the telescopic transmission mechanism comprises a bracket (24) fixed in the telescopic bin (23), a worm wheel (25) is rotatably arranged on the bracket (24), the screw rod penetrates the worm wheel (25) and the bracket (24), the worm wheel (25) cooperates with the screw rod through an internal thread, the outer side of the worm wheel (25) is cooperated with a worm, and the worm is driven by a driving motor (26).

5. A rectal medication device according to claim 4, characterized in that: The telescopic bin (23) is provided with a speed-changing telescopic mechanism which is arranged in a mirror image with the telescopic transmission mechanism. A large gear (27) and a small gear (28) are fixed on the worms of the telescopic transmission mechanism and the speed-changing telescopic mechanism respectively. The large gear (27) and the small gear (28) are close to each other, and an oblong hole (29) is provided on the fixing frame (2) between the large gear (27) and the small gear (28). The driving motor (26) is slidably connected to the outer wall of the fixing frame (2) through a slide rail. The motor shaft of the driving motor (26) passes through the oblong hole (29). A driving gear (30) is fixed on one end of the motor shaft which is placed in the telescopic bin (23). The driving gear (30) can mesh with one of the large gear (27) and the small gear (28) at the same time.

6. A rectal medication device according to claim 1, characterized in that: The infusion catheter (10) comprises a connecting tube (31), the connecting tube (31) being connected to a liquid outlet tube via a Y-shaped connector (32), the side hole (12) being arranged at an end of the liquid outlet tube away from the connecting tube (31), and the Y-shaped connector (32) being further sleeved with a detachable sealing cap (33).

7. A rectal medication device according to claim 1, characterized in that: A C-shaped clamping opening (34) is provided at the liquid outlet (5), the outer side wall of the clamping opening (34) is fixed to one end of the fixing groove (3) close to the liquid outlet (5), a sinking platform (35) is provided at one end of the clamping opening (34) close to the liquid outlet (5), a limiting ring (36) is fixed to one end of the infusion catheter (10) connected to the liquid outlet (5), the limiting ring (36) is clamped with the sinking platform (35), and the sinking platform (35) makes the axis of the limiting ring (36) coincide with the axis of the fixing groove (3) and the output tube (4).

8. A rectal medication device according to claim 1, characterized in that: A baffle plate (37) is provided on the side wall of the fixing frame (2), and a baffle ring (38) is fixed to one end of the output pipe (4) away from the liquid outlet (5), and the baffle ring (38) can be placed between the baffle plate (37) and the side wall of the fixing frame (2).

9. A rectal medication device according to claim 1, characterized in that: A heating device (39) is provided in the fixing groove (3).

10. A rectal medication device according to claim 1, characterized in that: A handle is hingedly connected to the shell (1); the output tube (4) is made of a transparent material; and a scale is provided on the side wall of the output tube (4).

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