Expandable medicine applying mechanism for anorectal department and using method of expandable medicine applying mechanism

Abstract

The invention relates to the technical field of medical instruments, and particularly discloses an expandable medicine applying mechanism for the anorectal department and a using method of the expandable medicine applying mechanism. A medicine applying mechanism is installed at one end of the medicine storage barrel, an expansion pipe is installed at the other end of the medicine applying mechanism, an expansion mechanism is installed in the expansion pipe, and a disinfection mechanism is jointly connected among the outer surface of the expansion pipe, the outer surface of the medicine applying mechanism and the outer surface of the medicine storage barrel in a sleeved mode; the expansion mechanism comprises a positive and negative screw rod, a fixed plate, a driver, an expansion frame and a support frame; the driver is started to drive the positive and negative screw rod to rotate, so that the dilation plates are driven to disperse to dilate the anorectum, meanwhile, the pressure change of the anus part is measured in real time through the pressure sensor, accurate control over the dilation mechanism is achieved, the dilation degree can be automatically adjusted according to the specific condition of the anus part of a patient, and the dilation efficiency is improved. Stimulation and injury to a patient are reduced, and it is ensured that the medicine can be smoothly and accurately delivered to a diseased part.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an expandable medication mechanism for anorectal surgery and a method of using the mechanism. Background Art

[0002] The anorectal department is a department that specializes in the research and treatment of constipation, anal fissure, anal fistula, anal abscess, anal stenosis, hypertrophy of anal papillae, perianal eczema, mixed hemorrhoids, internal hemorrhoids, and external hemorrhoids. Its research range mainly focuses on diseases occurring in the organs at the end of the digestive system. When treating the anus of anorectal patients, especially when medication is required, specially designed medication application tools or mechanisms are usually used. These medication application equipment can ensure that the medication is accurately delivered to the affected area and improve the treatment effect.

[0003] In the Chinese patent with publication number CN218484999U, a multifunctional drug delivery device for anorectal department is mentioned, which is inserted into the expansion tube through a pressing rod and a sealing plug, and then the limit block on the expansion tube is aligned with the positioning groove. After alignment, the limit block is inserted into the positioning groove. At this time, the insert block is inserted into the slot. After the limit block is inserted, it rotates inside the rotating groove. When the limit block contacts the limit groove, it stops rotating. The limit block is pushed into the limit groove by the elastic force of the elastic block, and the expansion tube can be quickly fixed on the handle;

[0004] However, the design of the drug delivery device adopts the method of directly inserting the dilation tube into the patient's body to apply the medicine. This operation method often causes obvious discomfort or even pain to the patient. Due to the lack of delicate and safe expansion and control of the anus, the drug delivery device is likely to cause irritation and damage to the patient's anus during use, which not only increases the patient's pain, but also may make the drug application process difficult. More importantly, due to the unsmooth drug delivery process, the drug may not be accurately delivered to the affected area, thereby affecting the overall treatment effect and preventing the patient from getting the best recovery experience. Summary of the invention

[0005] The object of the present invention is to provide an expandable medication delivery mechanism for anorectal surgery and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An expandable drug delivery mechanism for anorectal surgery, comprising:

[0008] Drug storage cartridges;

[0009] A drug coating mechanism is installed at one end of the drug storage cylinder, an expansion tube is installed at the other end of the drug coating mechanism, the expansion mechanism is installed inside the expansion tube, and a disinfection mechanism is sleeved between the outer surface of the expansion tube, the outer surface of the drug coating mechanism and the outer surface of the drug storage cylinder;

[0010] The expansion mechanism includes forward and reverse screw rods, a fixed plate, a driver, an expansion frame and a support frame. One end of the forward and reverse screw rods is installed on the inner wall of one side of the expansion tube through a bearing, the fixed plate is installed on the other end of the forward and reverse screw rods through a bearing, the driver is installed on the other end of the fixed plate, the expansion frame is installed between the two sides of the outer surface of the forward and reverse screw rods, and the support frame is installed in the middle of the outer surface of the forward and reverse screw rods through a bearing.

[0011] Preferably, a mounting block is installed on one side of the outer surface of the drug storage cartridge, a mounting groove is provided at one end of the mounting block, a spiral groove is provided on the inner wall of the mounting groove, a controller is installed on the upper part of the other end of the drug storage cartridge, a drug inlet pipe is installed on the lower part of the other end of the drug storage cartridge, and a plurality of inlets and outlets are provided on the outer surface of the expansion tube.

[0012] Preferably, the expansion frame includes an adjustment block, an adjustment rod, an expansion plate, a pressure sensor and a threaded hole. Two of the adjustment blocks and the threaded hole are provided. The two adjustment blocks are respectively installed on both sides of the outer surfaces of the positive and negative screw rods. Several of the adjustment rods, expansion plates and pressure sensors are provided. Several of the adjustment rods are respectively installed on the outer surfaces of the two adjustment blocks through connecting seats. Several of the expansion plates are respectively installed on the other ends of two adjacent adjustment rods through connecting seats. Several of the pressure sensors are respectively installed on the outer walls of several expansion plates. The two threaded holes are respectively opened on the opposite surfaces of the two adjustment blocks.

[0013] Preferably, the adjustment block is configured as a hexagonal structure, the outer surface of the expansion plate is configured as an arc surface, the pressure sensor and the driver are both electrically connected to the controller, the support frame is configured as an I-shaped structure, and the expansion tube is configured as a conical structure.

[0014] Preferably, the coating mechanism includes a coating cartridge, a spraying mechanism, a gear block, a driving motor and a gear. The coating cartridge is installed between the opposite surfaces of the storage cartridge and the expansion tube through a bearing. The spraying mechanism is installed in the middle of the inner wall of the coating cartridge. A plurality of gear blocks are provided, and the plurality of gear blocks are installed on one side of the inner wall of the coating cartridge. The driving motor is installed at the lower part of one end of the expansion tube, and the gear is installed at the output end of the driving motor.

[0015] Preferably, the drug spraying mechanism includes a diverter cylinder, a diverter tube, an atomizing nozzle, a drug delivery tube, a drug extraction pump and a drug extraction tube. The diverter cylinder is installed between the opposite surfaces of the drug storage cylinder and the expansion tube through a bearing. A plurality of diverter tubes and atomizing nozzles are provided. A plurality of the diverter tubes are installed on the outer wall of the diverter cylinder. A plurality of the atomizing nozzles are respectively installed at the other ends of a plurality of diverter tubes. The drug delivery tube is installed at the middle part of one end of the diverter cylinder through a bearing. The drug extraction pump is installed at one end of the drug delivery tube, and the drug extraction tube is installed at the other end of the drug extraction pump.

[0016] Preferably, the drug extraction pump and the driving motor are both electrically connected to the controller, the drug extraction tube is configured as a cross-shaped structure, the drug extraction tube is located inside the drug storage cartridge, and the gear is meshed with a plurality of gear blocks.

[0017] Preferably, the disinfection mechanism includes a protective cover, a spiral pattern, a sealing ring, an ultraviolet disinfection lamp and an anti-slip strip, the spiral pattern is installed on one side of the outer surface of the protective cover, the protective cover is installed inside the mounting groove through the spiral pattern, the sealing ring is installed at one end of the protective cover, and a plurality of ultraviolet disinfection lamps and anti-slip strips are provided, and a plurality of the ultraviolet disinfection lamps are installed on the inner wall of the protective cover, and a plurality of the anti-slip strips are installed in the middle of the outer wall of the protective cover.

[0018] Preferably, the plurality of ultraviolet disinfection lamps are electrically connected to the controller, and the outer surfaces of the plurality of ultraviolet disinfection lamps are not in contact with the outer surface of the drug storage cylinder and the outer surface of the expansion tube.

[0019] A method for using an expandable medication dispensing mechanism for anorectal surgery comprises the following steps:

[0020] Step 1, disinfection equipment: by putting the protective cover on the outer surface of the drug application mechanism, and then using an ultraviolet disinfection lamp to disinfect and sterilize the expansion tube, the drug application cylinder and the drug storage cylinder to ensure the hygienic safety during use, and then by rotating the protective cover, it can be removed from the installation groove, so as to facilitate the use of the drug application mechanism;

[0021] Step 2: dilate the anorectum: the controller controls the driver to start, so that the positive and negative screws drive the two adjustment blocks on it to move outward, so as to push several expansion plates to spread out to dilate the anorectum, and the pressure sensor can automatically adjust the expansion degree according to the specific situation of the patient's anus to reduce stimulation and damage to the patient;

[0022] Step 3: Applying medicine to the anorectum: The controller controls the medicine extraction pump to start, so that the medicine extraction tube extracts the medicine liquid inside the medicine storage cylinder, and then the medicine liquid is diverted to several diversion tubes through the diversion tube, and finally the medicine liquid is atomized and sprayed out through several atomizing nozzles, so as to achieve the application of medicine to the anorectum;

[0023] Step 4: Rotary spraying: The driving motor is started by the controller. At this time, the coating cylinder and the diversion cylinder can be driven to rotate through the meshing transmission between the gear and a plurality of tooth blocks. The rotation and spraying method can be used to evenly spray the medicine on the diseased part of the patient's anorectum to improve the treatment effect.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The present invention sets an expansion mechanism inside the expansion tube, and drives the forward and reverse screws to rotate by starting the driver, thereby driving a plurality of expansion plates to spread out to expand the anus and rectum. At the same time, the pressure sensor measures the pressure change in the anus in real time to achieve precise control of the expansion mechanism. In this way, the expansion degree can be automatically adjusted according to the specific conditions of the patient's anus, thereby reducing stimulation and damage to the patient and ensuring that the drug can be smoothly and accurately delivered to the diseased area.

[0026] (2) The present invention provides a drug coating mechanism at one end of the drug storage cylinder. The drug extraction pump is started to extract the drug liquid in the drug storage cylinder, and then the drug liquid is evenly input into a plurality of atomizing nozzles through the diverter cylinder for atomization and spraying. At the same time, the driving motor is started to drive the gear to rotate. At this time, the gear and the plurality of tooth blocks are meshed to drive the drug coating cylinder to drive the plurality of atomizing nozzles to rotate. By adopting this rotation combined with spraying method, the drug can be evenly distributed on the diseased part, thereby improving the treatment effect.

[0027] (3) The present invention provides a disinfection mechanism on the outer surface of the expansion tube and the drug coating mechanism. By putting a protective sleeve on the outer surface of the expansion tube, the rotating drug coating cylinder and the drug storage cylinder, and inserting the rotating protective sleeve into the installation groove and firmly installing it, and then controlling the ultraviolet disinfection lamp to start by the controller, the entire mechanism can be disinfected and sterilized by ultraviolet rays, ensuring hygiene and safety during use, thereby effectively protecting the health of patients and medical staff and reducing the risk of cross infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A perspective view of the present invention;

[0029] Figure 2 It is an open perspective view of the present invention;

[0030] Figure 3 is a three-dimensional diagram of the expansion mechanism of the present invention;

[0031] Figure 4 is a three-dimensional diagram of the expansion frame of the present invention;

[0032] Figure 5 is a cross-sectional view of the medicine feeding mechanism of the present invention;

[0033] Figure 6 For the present invention Figure 5A magnified view of middle;

[0034] Figure 7 It is a three-dimensional diagram of the spraying mechanism of the present invention;

[0035] Figure 8 A stereogram of the disinfection mechanism of the present invention;

[0036] In the figure: 1. drug storage cartridge; 2. drug coating mechanism; 3. expansion tube; 4. expansion mechanism; 5. disinfection mechanism; 6. mounting block; 7. controller; 8. drug inlet tube; 9. inlet and outlet; 10. mounting groove; 11. spiral groove;

[0037] 21. Drug coating cartridge; 22. Drug spraying mechanism; 23. Gear block; 24. Driving motor; 25. Gear;

[0038] 221, diverter tube; 222, diverter pipe; 223, atomizing nozzle; 224, drug delivery tube; 225, drug extraction pump; 226, drug extraction tube;

[0039] 41. positive and negative screw rods; 42. fixing plate; 43. driver; 44. expansion frame; 45. support frame;

[0040] 441, adjusting block; 442, adjusting rod; 443, expansion plate; 444, pressure sensor; 445, threaded hole;

[0041] 51. Protective cover; 52. Spiral pattern; 53. Sealing ring; 54. Ultraviolet disinfection lamp; 55. Anti-slip strip. DETAILED DESCRIPTION

[0042] 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.

[0043] Embodiment 1:

[0044] See also Figures 1 to 8 As shown, an expandable drug delivery mechanism for anorectal surgery comprises:

[0045] Drug storage cartridge 1;

[0046] A drug coating mechanism 2 is installed at one end of the drug storage cartridge 1, an expansion tube 3 is installed at the other end of the drug coating mechanism 2, an expansion mechanism 4 is installed inside the expansion tube 3, and a disinfection mechanism 5 is sleeved between the outer surface of the expansion tube 3, the outer surface of the drug coating mechanism 2 and the outer surface of the drug storage cartridge 1;

[0047] The expansion mechanism 4 includes a forward and reverse screw rod 41, a fixed plate 42, a driver 43, an expansion frame 44 and a support frame 45. One end of the forward and reverse screw rod 41 is installed on the inner wall of one side of the expansion tube 3 through a bearing, the fixed plate 42 is installed on the other end of the forward and reverse screw rod 41 through a bearing, the driver 43 is installed on the other end of the fixed plate 42, the expansion frame 44 is installed between the two sides of the outer surface of the forward and reverse screw rod 41, and the support frame 45 is installed in the middle of the outer surface of the forward and reverse screw rod 41 through a bearing.

[0048] Depend on Figures 1 to 4 It can be seen that a mounting block 6 is installed on one side of the outer surface of the drug storage cartridge 1, a mounting groove 10 is opened at one end of the mounting block 6, and a spiral groove 11 is opened on the inner wall of the mounting groove 10, a controller 7 is installed on the upper part of the other end of the drug storage cartridge 1, a drug inlet pipe 8 is installed on the lower part of the other end of the drug storage cartridge 1, and a plurality of inlets and outlets 9 are opened on the outer surface of the expansion tube 3;

[0049] The expansion frame 44 includes an adjustment block 441, an adjustment rod 442, an expansion plate 443, a pressure sensor 444 and a threaded hole 445. There are two adjustment blocks 441 and two threaded holes 445. The two adjustment blocks 441 are respectively installed on both sides of the outer surface of the positive and negative screw rods 41. There are several adjustment rods 442, expansion plates 443 and pressure sensors 444. Several adjustment rods 442 are respectively installed on the outer surfaces of the two adjustment blocks 441 through connecting seats, several expansion plates 443 are respectively installed on the other ends of two adjacent adjustment rods 442 through connecting seats, several pressure sensors 444 are respectively installed on the outer walls of several expansion plates 443, and two threaded holes 445 are respectively opened on the opposite surfaces of the two adjustment blocks 441.

[0050] As can be seen from the above, first, by inserting the conical expansion tube 3 into the patient's anus and rectum, the expansion mechanism 4 can also be inserted into the patient's body. At this time, the driver 43 can be started by the controller 7, so that the forward and reverse screw rods 41 drive the two adjustment blocks 441 thereon to move outward respectively, and then, a number of adjustment rods 442 will respectively push a number of expansion plates 443 through the corresponding inlet and outlet 9 and spread out, so as to achieve the expansion of the anus and rectum. The expansion of the anus and rectum can not only relieve sphincter spasms, but also increase the diameter of the anus, which is convenient for the subsequent medication and observation of the anus and rectum. At the same time, the pressure sensor 444 will measure the pressure changes in the anus in real time, and transmit the monitored data information to the controller 7. The controller 7 controls the driver 43 to rotate forward and backward according to this information to achieve precise control of the expansion mechanism 4. In this way, the expansion degree can be automatically adjusted according to the specific situation of the patient's anus, thereby reducing the stimulation and damage of the medication mechanism to the patient, making the medication process more convenient, ensuring that the medicine can be smoothly and accurately delivered to the diseased part, enhancing the overall treatment effect, and enabling the patient to obtain the best rehabilitation experience.

[0051] Specifically, refer to Figures 1 to 4 As shown, the adjustment block 441 is set to a hexagonal structure, the outer surface of the expansion plate 443 is set to an arc surface, the pressure sensor 444 and the driver 43 are both electrically connected to the controller 7, the support frame 45 is set to an I-shaped structure, and the expansion tube 3 is set to a conical structure.

[0052] As can be seen from the above, it is convenient to install multiple adjustment rods 442 on the adjustment block 441 at the same time, so that the outer surface of the expansion plate 443 coincides with the outer surface of the expansion tube 3, which is conducive to the smooth insertion of the expansion tube 3. Automatic control and monitoring can be achieved through the controller 7. The design of the I-shaped structure enhances the strength and stability of the support frame 45, and the design of the conical structure enables the expansion tube 3 to gradually adapt to and expand the anus.

[0053] Embodiment 2:

[0054] refer to Figures 5 to 7 As shown, the coating mechanism 2 includes a coating barrel 21, a spraying mechanism 22, a tooth block 23, a driving motor 24 and a gear 25. The coating barrel 21 is installed between the opposite surfaces of the storage barrel 1 and the expansion tube 3 through a bearing, the spraying mechanism 22 is installed in the middle of the inner wall of the coating barrel 21, a plurality of tooth blocks 23 are provided, and the plurality of tooth blocks 23 are installed on one side of the inner wall of the coating barrel 21, the driving motor 24 is installed at the lower part of one end of the expansion tube 3, and the gear 25 is installed at the output end of the driving motor 24;

[0055] The drug spraying mechanism 22 includes a diverter cylinder 221, a diverter tube 222, an atomizing nozzle 223, a drug delivery tube 224, a drug extraction pump 225 and a drug extraction tube 226. The diverter cylinder 221 is installed between the opposite surfaces of the drug storage cylinder 1 and the expansion tube 3 through a bearing. There are a plurality of diverter tubes 222 and atomizing nozzles 223. The plurality of diverter tubes 222 are installed on the outer wall of the diverter cylinder 221. The plurality of atomizing nozzles 223 are respectively installed at the other ends of the plurality of diverter tubes 222. The drug delivery tube 224 is installed at the middle part of one end of the diverter cylinder 221 through a bearing. The drug extraction pump 225 is installed at one end of the drug delivery tube 224. The drug extraction tube 226 is installed at the other end of the drug extraction pump 225.

[0056] As can be seen from the above, when it is necessary to apply medicine to the inside of the patient's anus and rectum, the expansion mechanism 4 is first used to expand the anus and rectum. After the expansion is completed, this is conducive to the smooth insertion of the entire medicine application mechanism, and then it is convenient to accurately place the medicine application mechanism 2 in the affected part of the anus and rectum. At this time, the medicine extraction pump 225 can be controlled by the controller 7 to start, so that the medicine extraction tube 226 generates suction to extract the medicine liquid from the medicine storage cylinder 1, and then the medicine liquid is transported to the diversion cylinder 221 through the medicine delivery tube 224, and then the medicine liquid is diverted to a number of atomizing nozzles 223 through a number of diversion tubes 222. Finally, the medicine liquid is atomized and sprayed through a number of atomizing nozzles 223. At the same time, the controller 7 starts the drive motor 24, so that the gear 25 rotates and meshes with a number of gear blocks 23, thereby driving the medicine application cylinder 21 to drive the number of atomizing nozzles 223 to rotate. Using this rotary spraying method, the medicine can be evenly distributed on the diseased part, ensuring uniform and comprehensive coverage of the medicine liquid, thereby improving the treatment effect.

[0057] Preferably, reference Figures 5 to 7 As shown, the drug pump 225 and the driving motor 24 are both electrically connected to the controller 7 , the drug extraction tube 226 is configured as a cross-shaped structure, the drug extraction tube 226 is located inside the drug storage cartridge 1 , and the gear 25 is meshed with a plurality of gear blocks 23 .

[0058] As can be seen from the above, accurate extraction and application of the medicine can be achieved, and the design of the cross-shaped structure enables the medicine extraction tube 226 to better extract the medicine inside the medicine storage cylinder 1 and drive the medicine application cylinder 21 to rotate and apply the medicine.

[0059] Embodiment three:

[0060] refer to Figure 8 As shown, the disinfection mechanism 5 includes a protective cover 51, a spiral pattern 52, a sealing ring 53, an ultraviolet disinfection lamp 54 and an anti-slip strip 55. The spiral pattern 52 is installed on one side of the outer surface of the protective cover 51, and the protective cover 51 is installed inside the mounting groove 10 through the spiral pattern 52. The sealing ring 53 is installed at one end of the protective cover 51. A plurality of ultraviolet disinfection lamps 54 and anti-slip strips 55 are provided. The plurality of ultraviolet disinfection lamps 54 are installed on the inner wall of the protective cover 51, and the plurality of anti-slip strips 55 are installed in the middle of the outer wall of the protective cover 51.

[0061] As can be seen from the above, before using the medication application mechanism, several ultraviolet disinfection lamps 54 can be controlled by the controller 7 to start and emit ultraviolet rays. In this way, the ultraviolet rays can simultaneously disinfect and sterilize the expansion tube 3, the expansion mechanism 4, the rotating medication cylinder 21 and the medication storage cylinder 1, ensuring the hygiene and safety of the entire mechanism during use, thereby effectively protecting the health of patients and medical staff and reducing the risk of cross infection. When the medication application mechanism is needed, several anti-slip strips 55 can increase the friction force on the outer surface of the protective cover 51, making it convenient for the user to rotate the protective cover 51, and through the spiral connection between the spiral pattern 52 and the spiral groove 11, the user can easily remove the protective cover 51 from the mounting groove 10 to achieve the disassembly of the protective cover 51. Conversely, it is also convenient for the user to put on the protective cover 51 and seal and install the protective cover 51 through the sealing ring 53 to achieve the protection of these components.

[0062] Preferably, reference Figure 8 As shown, the plurality of ultraviolet disinfection lamps 54 are electrically connected to the controller 7 , and the outer surfaces of the plurality of ultraviolet disinfection lamps 54 are not in contact with the outer surface of the drug storage cartridge 1 and the outer surface of the expansion tube 3 .

[0063] As can be seen from the above, automatic disinfection can be achieved to ensure that the ultraviolet disinfection lamp 54 will not hit the outer surface of the drug storage cylinder 1 and the expansion tube 3, which is conducive to the smooth application and removal of the protective sleeve 51.

[0064] Embodiment 4:

[0065] refer to Figures 1 to 8 As shown, a method for using an expandable medication delivery mechanism for anorectal surgery comprises the following steps:

[0066] Step 1, disinfection equipment: by putting the protective cover 51 on the outer surface of the drug application mechanism, and then using the ultraviolet disinfection lamp 54 to disinfect and sterilize the expansion tube 3, the drug application cylinder 21 and the drug storage cylinder 1, to ensure the hygienic safety during use, and then by rotating the protective cover 51, it can be removed from the installation groove 10, so as to facilitate the use of the drug application mechanism;

[0067] Step 2: dilate the anorectum: the controller 7 controls the driver 43 to start, so that the forward and reverse screw rods 41 drive the two adjustment blocks 441 thereon to move outward, so as to push a plurality of dilation plates 443 to spread out to dilate the anorectum, and the pressure sensor 444 can automatically adjust the dilation degree according to the specific conditions of the patient's anus, thereby reducing stimulation and damage to the patient;

[0068] Step 3: Applying medicine to the anorectal area: The controller 7 controls the medicine pump 225 to start, so that the medicine pipe 226 extracts the medicine liquid in the medicine storage cylinder 1, and then the medicine liquid is diverted to a plurality of diverter pipes 222 through the diverter cylinder 221, and finally the medicine liquid is atomized and sprayed out through a plurality of atomizing nozzles 223, so as to apply medicine to the anorectal area;

[0069] Step 4, rotary spraying: The driving motor 24 is started by the controller 7. At this time, the gear 25 and the plurality of tooth blocks 23 are meshed to drive the coating cylinder 21 and the diverter cylinder 221 to rotate. The rotary spraying method can be adopted to evenly spray the medicine on the diseased part of the patient's anorectum, thereby improving the treatment effect.

[0070] Application examples:

[0071] This design is mainly used in the anorectal clinic, operating room or treatment room of a medical institution, especially in those places where it is necessary to apply medicine, treat or examine the patient's anus. Before using this design to expand and apply medicine to the patient's anus, a disinfection mechanism 5 is set up, and ultraviolet disinfection is used to comprehensively disinfect the entire medicine application mechanism to ensure hygiene and safety during use. This measure can effectively reduce the risk of cross infection and protect the health of patients and medical staff. Then, by setting an expansion tube 3 and an expansion mechanism 4, the expansion degree is automatically adjusted using mechanical principles to adapt to the size and shape of the anus of different patients. This design can reduce stimulation and damage to the patient's anus and ensure that the medicine can smoothly enter the diseased area. At the same time, a medicine application mechanism 2 is also set up, and a rotary spraying method is used to evenly apply the medicine to the diseased area. This method can ensure uniform coverage of the medicine, thereby improving the treatment effect. This design can ensure that the medicine acts on the diseased area accurately and quickly by automatically adjusting the expansion degree and the rotary spraying method, thereby improving the treatment efficiency.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An expandable medication delivery mechanism for anorectal surgery, characterized in that: include: Drug storage cartridge (1); A drug coating mechanism (2) is installed at one end of the drug storage cylinder (1), an expansion tube (3) is installed at the other end of the drug coating mechanism (2), an expansion mechanism (4) is installed inside the expansion tube (3), and a disinfection mechanism (5) is sleeved between the outer surface of the expansion tube (3), the outer surface of the drug coating mechanism (2) and the outer surface of the drug storage cylinder (1); The expansion mechanism (4) comprises a forward and reverse screw rod (41), a fixed plate (42), a driver (43), an expansion frame (44) and a support frame (45); one end of the forward and reverse screw rod (41) is mounted on an inner wall of one side of the expansion tube (3) via a bearing; the fixed plate (42) is mounted on the other end of the forward and reverse screw rod (41) via a bearing; the driver (43) is mounted on the other end of the fixed plate (42); the expansion frame (44) is mounted between two sides of the outer surface of the forward and reverse screw rod (41); and the support frame (45) is mounted on the middle part of the outer surface of the forward and reverse screw rod (41) via a bearing.

2. The expandable drug delivery mechanism for anorectal surgery according to claim 1, characterized in that: A mounting block (6) is installed on one side of the outer surface of the drug storage cartridge (1), a mounting groove (10) is provided at one end of the mounting block (6), and a spiral groove (11) is provided on the inner wall of the mounting groove (10). A controller (7) is installed on the upper part of the other end of the drug storage cartridge (1), and a drug inlet pipe (8) is installed on the lower part of the other end of the drug storage cartridge (1). The outer surface of the expansion tube (3) is provided with a plurality of inlets and outlets (9).

3. The expandable drug delivery mechanism for anorectal surgery according to claim 2, characterized in that: The expansion frame (44) comprises an adjustment block (441), an adjustment rod (442), an expansion plate (443), a pressure sensor (444) and a threaded hole (445). The adjustment block (441) and the threaded hole (445) are both provided with two, and the two adjustment blocks (441) are respectively installed on both sides of the outer surface of the positive and negative screw rods (41). The adjustment rods (442), the expansion plates (443) and the pressure sensor (444) are each provided with a plurality, and the plurality of adjustment rods (442) are respectively installed on the outer surfaces of the two adjustment blocks (441) through connecting seats, and the plurality of expansion plates (443) are respectively installed on the other ends of two adjacent adjustment rods (442) through connecting seats, and the plurality of pressure sensors (444) are respectively installed on the outer walls of the plurality of expansion plates (443), and the two threaded holes (445) are respectively opened on the opposite surfaces of the two adjustment blocks (441).

4. The expandable drug delivery mechanism for anorectal surgery according to claim 3, characterized in that: The regulating block (441) is configured as a hexagonal structure, the outer surface of the expansion plate (443) is configured as an arc-shaped surface, the pressure sensor (444) and the driver (43) are both electrically connected to the controller (7), the support frame (45) is configured as an I-shaped structure, and the expansion tube (3) is configured as a conical structure.

5. The expandable drug delivery mechanism for anorectal surgery according to claim 1, characterized in that: The coating mechanism (2) comprises a coating barrel (21), a spraying mechanism (22), a tooth block (23), a driving motor (24) and a gear (25); the coating barrel (21) is mounted between the opposite surfaces of the storage barrel (1) and the expansion tube (3) through a bearing; the spraying mechanism (22) is mounted in the middle of the inner wall of the coating barrel (21); a plurality of tooth blocks (23) are provided, and the plurality of tooth blocks (23) are all mounted on one side of the inner wall of the coating barrel (21); the driving motor (24) is mounted at the lower part of one end of the expansion tube (3); and the gear (25) is mounted at the output end of the driving motor (24).

6. The expandable drug delivery mechanism for anorectal surgery according to claim 5, characterized in that: The drug spraying mechanism (22) comprises a diverter tube (221), a diverter tube (222), an atomizing nozzle (223), a drug delivery tube (224), a drug extraction pump (225) and a drug extraction tube (226). The diverter tube (221) is installed between the opposite surfaces of the drug storage tube (1) and the expansion tube (3) via a bearing. A plurality of diverter tubes (222) and atomizing nozzles (223) are provided. The plurality of diverter tubes (222) are installed on the outer wall of the diverter tube (221). The plurality of atomizing nozzles (223) are respectively installed at the other ends of the plurality of diverter tubes (222). The drug delivery tube (224) is installed at the middle of one end of the diverter tube (221) via a bearing. The drug extraction pump (225) is installed at one end of the drug delivery tube (224). The drug extraction tube (226) is installed at the other end of the drug extraction pump (225).

7. The expandable drug delivery mechanism for anorectal surgery according to claim 6, characterized in that: The drug extraction pump (225) and the driving motor (24) are both electrically connected to the controller (7); the drug extraction tube (226) is configured as a cross-shaped structure; the drug extraction tube (226) is located inside the drug storage cartridge (1); and the gear (25) is meshed with a plurality of gear blocks (23).

8. The expandable drug delivery mechanism for anorectal surgery according to claim 1, characterized in that: The disinfection mechanism (5) comprises a protective cover (51), a spiral pattern (52), a sealing ring (53), an ultraviolet disinfection lamp (54) and an anti-slip strip (55), wherein the spiral pattern (52) is mounted on one side of the outer surface of the protective cover (51), the protective cover (51) is mounted inside the mounting groove (10) through the spiral pattern (52), the sealing ring (53) is mounted on one end of the protective cover (51), a plurality of the ultraviolet disinfection lamps (54) and the anti-slip strip (55) are provided, the plurality of the ultraviolet disinfection lamps (54) are mounted on the inner wall of the protective cover (51), and the plurality of the anti-slip strips (55) are mounted on the middle part of the outer wall of the protective cover (51).

9. The expandable drug delivery mechanism for anorectal surgery according to claim 8, characterized in that: The plurality of ultraviolet disinfection lamps (54) are all electrically connected to the controller (7), and the outer surfaces of the plurality of ultraviolet disinfection lamps (54) are not in contact with the outer surface of the drug storage cylinder (1) and the outer surface of the expansion tube (3).

10. A method for using an expandable medication delivery mechanism for anorectal surgery, applicable to an expandable medication delivery mechanism for anorectal surgery according to claims 1 to 9, characterized in that: The following steps are involved: Step 1, disinfection equipment: by putting a protective cover (51) on the outer surface of the drug application mechanism, and then using an ultraviolet disinfection lamp (54) to disinfect and sterilize the expansion tube (3), the drug application cylinder (21) and the drug storage cylinder (1), to ensure hygiene and safety during use, and then by rotating the protective cover (51) to remove it from the installation groove (10), so as to facilitate the use of the drug application mechanism; Step 2: dilating the anorectum: the controller (7) controls the driver (43) to start, so that the forward and reverse screw rods (41) drive the two adjustment blocks (441) thereon to move outward, thereby pushing a plurality of dilating plates (443) to spread out to dilate the anorectum, and the pressure sensor (444) can automatically adjust the dilating degree according to the specific conditions of the patient's anus, thereby reducing stimulation and damage to the patient; Step 3: Applying medicine to the anorectal area: The controller (7) controls the medicine extraction pump (225) to start, so that the medicine extraction pipe (226) extracts the medicine liquid inside the medicine storage cylinder (1), and then the medicine liquid is diverted to a plurality of diverter pipes (222) through the diverter cylinder (221), and finally the medicine liquid is atomized and sprayed out through a plurality of atomizing nozzles (223), so as to achieve the application of medicine to the anorectal area; Step 4, rotary spraying: The driving motor (24) is started by the controller (7). At this time, the gear (25) and the plurality of tooth blocks (23) are meshed to drive the coating cylinder (21) and the diverter cylinder (221) to rotate. The rotary spraying method can be adopted to evenly spray the medicine on the diseased part of the anorectal area of ​​the patient, thereby improving the treatment effect.

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