Anus medicine applying and applying device for anorectal department

Abstract

The anus medicine applying and applying device for the anorectal department comprises a driving assembly, a medicine supplying assembly and a medicine applying assembly which are arranged in a gun body. The medicine applying assembly comprises an applying head arranged at the muzzle, a medicine outlet cavity is formed in the applying head, and a medicine outlet is arranged around the side wall of the applying head; the medicine supply assembly comprises a medicine feeding pipe connected with a medicine outlet cavity and an ointment pipe, medicine in the medicine feeding pipe is supplied by a peristaltic pump, and a power shaft of the peristaltic pump is linked by a trigger through a thorn wheel assembly. The ratchet wheel assembly comprises a driving wheel and a driven wheel which are in toothed connection, the driving wheel is coaxial with the trigger, a shaft of the driven wheel is a power shaft, and the driven wheel rotates along a circular guide rail arranged on the wheel side; the power shaft is fixedly connected with a circular plate provided with claw grooves in the radial direction. A pawl arranged in the pawl groove and supported by a first spring is in tooth connection with a ratchet wheel arranged in a wheel ring of the driven wheel. The condition of a patient can be conveniently observed so that medicine can be accurately applied to the patient, the follow-up operation of medicine application in the anus is facilitated, and the operation convenience during medicine application is improved.

Description

Technical Field

[0001] The invention specifically relates to an anal medicine applying device used in anorectal medicine, and belongs to the technical field of medical devices. Background Art

[0002] Anorectal medicine is a department that specializes in the research and treatment of constipation, anal fissure, anal fistula, anal abscess, anal stenosis, anal papilla hypertrophy, perianal eczema, mixed hemorrhoids, internal hemorrhoids and external hemorrhoids. Its research scope mainly focuses on diseases occurring in the organs at the end of the digestive system. In anorectal treatment, applying and coating medicine to the anus is a common treatment step. The traditional method of applying medicine is usually for doctors or nurses to manually apply the medicine to the patient's anus using tools such as cotton swabs, gauze or sprayers.

[0003] In the prior art (the announcement number is CN109173028B, and the patent name is a patent application for an anorectal anal medication coating device), two support rods are set up, and the two support rods can open the left and right buttocks and expose the anus to facilitate the application of the medicine. Two locking nuts are set up, and the two locking nuts can lock and position the medicine storage box on the two supporting rods, and the medicine storage box can be easily removed for cleaning and disinfection by loosening the two locking nuts. The medicine storage box is set up, and the medicine storage box can centrally store a certain volume of medicine for multiple patients to apply. Two card plates are set up, and the holding frame is hung on the two card plates through the left and right bent support plates at the top and clamped between two groups of elastic clips, and then the two card plates can clamp and position the holding frame, so that the positioning holding frame assembly is integrated into the device body, which is convenient for taking and using the holding frame. In the process of implementing this technical solution, it is found that there are at least the following problems in the prior art.

[0004] Existing devices do not have the function of perianal application, and most of them are directly inserted into the anus to administer medicine. The medicine needs to be manually pushed forward when applying, and the amount of medicine applied is difficult to control. The amount of medicine used is different for users of different ages, resulting in excessive application of medicine causing the medicine to flow out of the anus, and insufficient application of medicine resulting in unsatisfactory treatment effect. At the same time, it is difficult to ensure uniform application of the medicine during application, which may cause uneven distribution of the medicine and affect the treatment effect. In addition, when administering the medicine intrarectally, it is necessary to use hands to force the buttocks apart to expose the anus while performing the intraanal administration operation, which is time-consuming and laborious. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the object of the present invention is to provide an anal medicine applying device for anorectal department.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] An anal medicine coating device for anorectal department, comprising a driving component, a medicine supply component and a medicine coating component arranged in a gun body;

[0008] The medicine applicator assembly comprises a coating head arranged at the muzzle, a medicine outlet cavity is arranged in the coating head, and a plurality of medicine outlets connected to the medicine outlet cavity are arranged around the side wall of the coating head; the end of the coating head is closed;

[0009] The medicine supply assembly comprises a medicine delivery tube with one end connected to the medicine cavity, and the other end of the medicine delivery tube is connected to the ointment tube through an ointment cover;

[0010] The driving assembly comprises a peristaltic pump arranged on the drug delivery tube, and the power shaft of the peristaltic pump is linked by a trigger through a ratchet wheel assembly;

[0011] The ratchet wheel assembly includes a toothed driving wheel and a driven wheel, the driving wheel is coaxial with the trigger, the shaft of the driven wheel is a power shaft, and the driven wheel rotates along a circular guide rail arranged on the wheel side;

[0012] The power shaft is fixedly connected to a circular plate; the circular plate is provided with a radial claw groove, and a ratchet pawl placed in the claw groove and supported by a first spring is engaged with the ratchet gear arranged in the wheel ring of the driven wheel.

[0013] A reset spring connected to the trigger is arranged in the gun body.

[0014] The driving wheel is a semicircular wheel.

[0015] The above-mentioned anal medication applicator further comprises a telescopic component;

[0016] The telescopic assembly comprises a threaded rod which is threadedly connected to the gun body in the transverse direction, one end of the threaded rod is connected to the coating head inside the gun body, and the other end is fixedly connected to the rotating plate outside the gun body.

[0017] The above-mentioned anal medicine applying device further comprises a swinging assembly;

[0018] The swing assembly includes an eccentric shaft provided at both ends of the power shaft, a pair of L-shaped lifting rods and a pair of L-shaped shaft rods; the transverse rod of the lifting rod is provided with a swing groove, the shaft end of the eccentric shaft is placed in the swing groove, and the longitudinal rod of the lifting rod is provided with a sliding hole; the shaft rod is arranged horizontally, one end of the shaft rod is placed in the sliding hole, and the other end of the shaft rod is connected to the end of the extension tube at the end of the coating head;

[0019] The axial connection between the pair of shafts and the ends of the extension tubes is 90 degrees along the circumferential direction.

[0020] Furthermore, the anal medication applicator described above includes a preheating component;

[0021] The preheating assembly comprises a heating tube arranged in the wall of the extension tube, and the drug delivery tube supplies medicine to the applicator head through the barrel cavity of the extension tube.

[0022] The anal medication applicator device further comprises an anal expansion component arranged at the muzzle;

[0023] The anal expansion assembly includes a pair of expansion rods hinged at the muzzle, and an anal expansion plate is fixed to the ends of the expansion rods;

[0024] The expansion rod is V-shaped and has a column cavity in the transverse direction; one end of the top rod is placed in the column cavity through a connecting column, and the other end is linked by a cylinder through a hinge.

[0025] The anal medication applicator mentioned above further comprises an expansion component;

[0026] The expansion assembly includes a hydraulic cavity provided in the side wall of the smear head; corresponding to the hydraulic cavity, the side wall of the smear head is provided with a plurality of expansion membranes;

[0027] The liquid supply unit supplies liquid to the liquid storage chamber.

[0028] A plurality of rolling balls are arranged on the side wall of the application head between the medicine outlets.

[0029] The present invention is beneficial in that:

[0030] The anal medicine applying device for anorectal surgery of the present invention has the following advantages:

[0031] A. The anal medication coating device for anorectal department, firstly, the medical staff holds the holding frame tightly, then inserts the anal expansion plate into the gap between the two buttocks, and then pushes the hinge part 1 to move through the cylinder, and the hinge part 1 pushes the push rod to move, and the push rod pushes the expansion rod and the expansion rod expands outward with the hinge part 2 as the axis, so that the anal expansion plate spreads the left and right buttocks apart, which is convenient for observing the patient's condition and accurately applying the medicine to the patient, and is convenient for the subsequent operation of applying the medicine in the anus, thereby increasing the convenience of operation when the device is used for medication.

[0032] B. The anal medication coating device for anorectal department, then the medical staff rotates the rotating plate, so that the threaded rod pushes the push rod and the clamping plate to move toward the anus, the clamping plate pushes the extension tube and the applicator head to move, and the applicator head is inserted into the anus. During the insertion of the applicator head, the applicator head drives the L-shaped clamping rod and the extrusion circular plate to move, the extrusion circular plate squeezes the hydraulic liquid in the hydraulic cylinder, and the hydraulic liquid in the extrusion enters the liquid inlet cavity through the liquid inlet port, and after entering the hydraulic cavity through the liquid inlet hose, the expansion membrane expands, and the expanded expansion membrane blocks the anus, thereby preventing the drug solution from flowing out of the anus, solving the problem of drug solution loss in patients with impaired anal contraction function, and ensuring the effective absorption of the drug solution.

[0033] C. After inserting the applicator head into the anus, the medical staff pulls the squeeze trigger, and the squeeze trigger drives the active wheel to rotate through the driving shaft. When the active wheel drives the driven wheel and the ratchet to rotate clockwise, the pawl is stuck in the ratchet, so that the ratchet pushes the pawl and the circular plate to rotate with the power shaft as the axis, and the power shaft drives the extrusion plate to rotate, and the extrusion plate squeezes the drug delivery tube. When the medical staff releases the squeeze trigger, the reset spring pulls the squeeze trigger and the active wheel to reset. During the reset, the active wheel drives the driven wheel and the ratchet to rotate counterclockwise, and the ratchet pushes the pawl down to the inside of the circular plate to prevent the circular plate from rotating when the squeeze trigger is reset. By continuously pulling the squeeze trigger, the liquid in the drug delivery tube can be intermittently squeezed into the feeding tube, and the precise control of the amount of medicine applied improves the utilization rate of the medicine and reduces the waste of medicine.

[0034] D. The anal medication coating device used in the anorectal department, as the medical staff continuously pulls the trigger, the medicine liquid continuously enters the patient's anus, the power shaft drives the eccentric shaft to rotate, the eccentric shaft drives the transverse rod and the longitudinal rod to move, the longitudinal rod drives the shaft rod to perform reciprocating lifting and lowering motion, so that the shaft rod drives the extension tube to rotate, the extension tube drives the applicator head to rotate, the applicator head can make the medicine liquid evenly distributed in the patient's anus, the ball on the applicator head can better apply the medicine while massaging the patient's anus, thereby improving the efficiency, accuracy and patient comfort of anal medication. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the internal structure of the gun body of the present invention;

[0037] Figure 3 It is a schematic diagram of the structure of the ointment cover of the present invention;

[0038] Figure 4 It is a schematic diagram of the anal dilation assembly of the present invention;

[0039] Figure 5 It is a schematic diagram of the structure of the trigger pull of the present invention;

[0040] Figure 6 It is a schematic diagram of the structure of the drug supply component of the present invention;

[0041] Figure 7 It is a cross-sectional view of the circular guide rail structure of the present invention;

[0042] Figure 8 It is a schematic structural diagram of a feed assembly of the present invention;

[0043] Fig. 9 It is a schematic diagram of the structure of the coating head of the present invention;

[0044] Fig.10 For the present invention Fig. 9 A magnified view of the structure at center;

[0045] Fig.11 It is a cross-sectional view of the structure of the coating head of the present invention;

[0046] Fig.12 It is an enlarged view of the expansion assembly structure of the present invention;

[0047] Fig.13 For the present invention Fig.12 A magnified view of the structure at B in the middle;

[0048] Fig.14 It is a schematic structural diagram of the swing assembly of the present invention.

[0049] The meanings of the symbols in the accompanying drawings are as follows:

[0050] 101, gun body; 102, holding frame; 103, fixing plate; 104, threaded rod; 105, rotating plate; 106, push rod; 107, clamping plate; 108, extension tube; 109, limiting bracket; 11, fixing frame; 12, ointment cover; 13, ointment tube;

[0051] 2. Anal expansion assembly; 201. Cylinder; 202. Hinge 1; 203. Push rod; 204. Connecting column; 205. Expansion rod; 206. Hinge 2; 207. Anal expansion plate;

[0052] 3. Medicine supply assembly; 301. L-shaped fixing plate; 302. reset spring; 303. trigger pull; 304. drive shaft; 305. driving wheel; 31. circular guide rail; 32. annular slide plate; 33. driven wheel; 34. ratchet; 35. power shaft; 36. circular plate; 37. first spring; 38. ratchet;

[0053] 4. driving assembly; 401. extrusion plate; 402. positioning plate; 403. pump housing; 404. dosing tube; 41. feeding tube; 42. heating chamber; 43. heating tube;

[0054] 5. Swing assembly; 501. Eccentric shaft; 502. Transverse rod; 503. Longitudinal rod; 504. I-shaped slider; 505. Slide plate; 506. Shaft rod; 51. Applicator head; 52. Drug outlet; 53. Ball;

[0055] 6. Expansion assembly; 601. Fixed frame; 602. Hydraulic cylinder; 603. Extrusion circular plate; 604. L-shaped clamping rod; 605. Liquid inlet cavity; 606. Liquid inlet port; 61. Liquid inlet hose; 62. Hydraulic cavity; 63. Expansion membrane. DETAILED DESCRIPTION

[0056] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0057] like Figures 1 to 14 As shown, an anal medicine coating device for anorectal department of the present invention is composed of a gun body 101 and a driving component 4, a medicine supply component 3, a coating component, a telescopic component, a swing component 5, a preheating component, an expansion component 6, and an anal dilation component 2.

[0058] The bottom of the gun body 101 is a holding frame 102, and a fixing plate 103 is provided at the end of the gun body in the horizontal direction. The fixing plate 103 is provided with a threaded hole, and a threaded rod 104 is screwed into the gun body through the threaded hole. One end of the threaded rod 104 outside the gun body is fixedly connected to a rotating plate 105, and the other end of the threaded rod 104 inside the gun body is rotatably connected to a push rod 106, and the other end of the push rod 106 is fixedly connected to a clamping plate 107, and the clamping plate 107 clamps the end of an extension tube 108. The outer wall of the extension tube 108 is slidably connected to a limit bracket 109, and the limit bracket 109 is fixedly connected to the inner side wall of the gun body 101, and an application head 51 for applying medicine is provided at the outer end of the extension tube 108. That is, by rotating the rotating plate 105, the threaded rod 104 can be moved in the horizontal direction based on the thread of the fixing plate 103, and then the extension tube 108 and the application head 51 are linked to move in the horizontal direction through the push rod 106 and the clamping plate 107 at its end, forming a telescopic assembly.

[0059] The anal expansion assembly is composed of two groups of symmetrically arranged cylinders 201, push rods 203, expansion rods 205 and anal expansion plates 207. The expansion rod 205 is V-shaped, one end of which is arranged at the muzzle through hinge 206, and the other end is fixedly connected to the anal expansion plate 207. In the horizontal direction, the rod body of the expansion rod 205 is provided with a column cavity. One end of the push rod 203 is placed in the column cavity and connected to the expansion rod 205 through a connecting column 204, and the other end is connected to the output end of the cylinder 201 through hinge 1 202, and the cylinder 201 is fixedly connected in the gun body 101. That is, the push rod 203 is pushed by the output end of the cylinder 201, and then the expansion rod 205 is turned over based on hinge 206, so that the anal expansion plates 207 at the end are closed or expanded. When expanding outward, the left and right buttocks can be spread apart to achieve anal expansion, so as to facilitate the application of medicine.

[0060] A pair of anal expansion plates 207 are symmetrically placed on both sides of the application head 51.

[0061] The medicine supply assembly 3 is composed of a peristaltic pump and a medicine delivery tube 404, which are linked by a trigger through a ratchet wheel assembly. One end of the medicine delivery tube is connected to the medicine outlet cavity in the smear head 51 through an extension tube 108, and the medicine outlet cavity is connected to a plurality of medicine outlets 52 arranged on the side wall of the ring smear head 51; the other end of the medicine delivery tube 404 is connected to the ointment cover 12, which is fixed to the gun body by a fixing frame 11, and the ointment cover 12 is provided with a thread for connecting the ointment tube 13, so as to facilitate the replacement of the ointment tube 13. The peristaltic pump is arranged at the tube body of the medicine delivery tube 404; the peristaltic pump is composed of a pump housing 403 and a cross-shaped extrusion plate 401, which is linked by a power shaft 35, and the end surface of the extrusion plate 401 is provided with an arc groove for extruding the medicine delivery tube 404 placed in the pump housing. The pump housing is fixed in the gun body through a positioning plate 402.

[0062] Preferably, the drug delivery tube 404 is connected to the drug outlet cavity in the applicator head 51 through the feed tube 41 provided in the extension tube 108. The extension tube 108 is provided with a heating cavity 42 surrounding the feed tube 41, and a heating tube 43 is provided in the heating cavity 42; the heating tube 43 is used to provide heat to the heating cavity 42, thereby heating the drug liquid or ointment in the feed tube 41, so that the patient feels comfortable when taking the drug. The heating cavity 42 and the heating tube constitute a preheating component.

[0063] The ratchet wheel assembly and the peristaltic pump constitute a driving assembly 4 .

[0064] The ratchet wheel assembly is composed of a toothed driving wheel and a driven wheel. The driving wheel is coaxial with the trigger and is linked by the trigger through a drive shaft 304; the trigger is connected to a reset spring 302, which is supported and fixed by an L-shaped fixing plate 301 provided on one side of the trigger. The L-shaped fixing plate 301 is fixed to the gun body to provide support for the reset spring. Preferably, the driving wheel is semicircular.

[0065] The shaft of the driven wheel is the power shaft 35, the driven wheel is a hollow wheel, and a ratchet 34 is provided on the inner wall of the wheel ring; the power shaft 35 is fixedly connected to a circular plate 36, and a claw groove is provided in the radial direction of the circular plate 36, and a first spring 37 is placed in the claw groove, connected to a ratchet 38 placed at the notch of the claw groove, and the ratchet 38 matches the ratchet 34. That is, the driven wheel linked by the driving wheel, through the ratchet 34 in the wheel ring, pushes the circular plate 36 to rotate based on the parallel power shaft 35, and then links the peristaltic pump to work.

[0066] The rotation of the driving wheel is based on a circular guide rail 31 arranged on the driving wheel side. The inner wall of the circular guide rail 31 is slidably connected with an annular slide plate 32, and the side wall of the annular slide plate 32 is fixedly connected to the driven wheel 33. The circular guide rail is fixedly arranged in the gun body.

[0067] The swing assembly is also linked by the power shaft 35. The swing assembly consists of a pair of L-shaped eccentric shafts 501, a pair of L-shaped lifting rods and a pair of L-shaped shaft rods 506. The eccentric shafts 501 are fixedly mounted at both ends of the power shaft 35. The lifting rod is arranged longitudinally, wherein the transverse rod 502 of the lifting rod is provided with a swing groove, the shaft end of the eccentric shaft is placed in the swing groove, and the rod end of the longitudinal rod 503 of the lifting rod is provided with a sliding hole. The shaft rod 506 is arranged horizontally, one end is placed in the sliding hole, and the other end is perpendicular to the end face of the extension tube 108 and axially connected to the end face of the extension tube 108. The axial connection position of the pair of shaft rods and the extension tube is 90° along the circumferential direction. At the same time, the longitudinal rod 503 is fixedly connected to the I-shaped slider 504, and the I-shaped slider 504 is slidably connected to the slide plate 505, and the slide plate 505 is fixedly mounted on the surface of the gun body 101. That is, when the power shaft 35 rotates, the eccentric shaft 501 is linked to rotate, so that the two lifting rods are lifted and lowered reciprocatingly, and then the two shaft rods 506 are linked to lift and lower reciprocatingly; when the shaft rod 506 is lifted and lowered, the shaft rod 506 slides in the sliding hole at the same time to discharge the rod body surplus when the linkage extension tube 108 swings. The swinging extension tube 108 is linked to the swing of the application head 51, which facilitates the application head 51 to apply evenly. Furthermore, the application head 51 is also provided with a plurality of balls 53. When the drug outlet 52 discharges the drug liquid, the balls 53 can massage the patient's anus while achieving a better drug application effect.

[0068] like Figure 12 to Figure 13 As shown, the patient may feel embarrassed and uneasy during the medication application process, which may cause the patient to unconsciously clamp the anus, causing the liquid medicine to be squeezed out by the anus. Since some patients' anal contraction function is impaired, the liquid medicine cannot be sealed in the rectum by itself, resulting in the loss of liquid medicine, affecting the treatment effect. Therefore, an expansion component 6 is also provided on the side wall of the gun body 101.

[0069] The expansion assembly 6 includes a fixed frame 601 fixedly connected to the gun body 101, and the fixed frame 601 is used to be fixedly connected to the hydraulic cylinder 602. The inner cavity of the hydraulic cylinder 602 is provided with a sliding extrusion circular plate 603, and the inner side surface of the extrusion circular plate 603 is fixedly connected to the L-shaped clamping rod 604. The other end of the L-shaped clamping rod 604 passes through the hydraulic cylinder 602 and is connected to the hydraulic cavity 62 in the smearing head 51 through the liquid inlet hose 61. The outer wall of the smearing head 51 is provided with an expansion membrane 63 that passes through the hydraulic cavity 62. The inner cavity of the hydraulic cylinder 602 is used to store liquid, and the L-shaped clamping rod 604 is provided with a liquid inlet cavity 605 that passes through the liquid inlet hose 61, and the liquid inlet port 606 is provided on the side wall of the L-shaped clamping rod 604.

[0070] The hydraulic cylinder 602, the extrusion circular plate 603 and the L-shaped clamping rod 604 constitute a liquid supply unit.

[0071] When the smear head 51 drives the L-shaped clamping rod 604 and the squeezing circular plate 603 to move forward, the squeezing circular plate 603 squeezes the liquid in the hydraulic cylinder 602; the squeezed liquid enters the liquid inlet cavity 605 through the liquid inlet port 606, and enters the hydraulic cavity 62 through the liquid inlet hose 61, so that the expansion membrane 63 expands outward. The expanded expansion membrane 63 blocks the anus, thereby preventing the liquid medicine from flowing out of the anus, solving the problem of liquid medicine loss in patients with impaired anal contraction function, and ensuring effective absorption of the liquid medicine.

[0072] When using,

[0073] First, the medical staff holds the holding frame 102 tightly, and then inserts the anal expansion plate 207 into the gap between the two buttocks, and then pushes the hinge 202 to move through the cylinder 201, and the hinge 202 pushes the push rod 203 to move, and the push rod 203 pushes the expansion rod 205 and the expansion rod 205 expands outward with the hinge 2 206 as the axis, so that the anal expansion plate 207 spreads the left and right buttocks apart, making it convenient to observe the patient's condition accurately, and facilitating the subsequent operation of applying medicine into the anus, thereby increasing the convenience of operation during medication.

[0074] Subsequently, the medical staff rotates the rotating plate 105, so that the threaded rod 104 pushes the push rod 106 and the clamping plate 107 to move toward the anus, and the clamping plate 107 pushes the extension tube 108 and the applicator head 51 to move, and the applicator head 51 is inserted into the anus; during the insertion process of the applicator head 51, the applicator head 51 drives the L-shaped clamping rod 604 and the extrusion circular plate 603 to move, and the extrusion circular plate 603 squeezes the liquid in the hydraulic cylinder 602, and the squeezed liquid enters the liquid inlet cavity 605 through the liquid inlet port 606, and enters the hydraulic cavity 62 through the liquid inlet hose 61, so that the expansion membrane 63 expands, and the expanded expansion membrane 63 blocks the anus, thereby preventing the drug solution from flowing out of the anus, solving the problem of drug solution loss in patients with impaired anal contraction function, and ensuring the effective absorption of the drug solution.

[0075] After the applicator head 51 is inserted into the anus, the medical staff pulls the trigger 303, and the trigger 303 drives the driving wheel 305 to rotate through the driving shaft 304. When the driving wheel 305 drives the driven wheel 33 and the ratchet 34 to rotate clockwise, the pawl 38 is inserted into the ratchet 34, so that the ratchet 34 pushes the pawl 38 and the circular plate 36 to rotate with the power shaft 35 as the axis; the power shaft 35 drives the squeezing plate 401 to rotate, and the squeezing plate 401 squeezes the dosing tube 404 to supply medicine.

[0076] When the medical staff releases the trigger 303, the reset spring 302 pulls the trigger 303 and the driving wheel 305 to reset; when resetting, the driving wheel 305 drives the driven wheel 33 and the ratchet 34 to rotate counterclockwise, and the ratchet 34 pushes the pawl 38 to drop into the inside of the circular plate 36 to prevent the trigger 303 from driving the circular plate 36 to rotate when resetting. By continuously pulling the trigger 303, the liquid medicine in the drug delivery tube 404 can be intermittently squeezed into the feeding tube 41, and the precise control of the amount of medicine applied improves the utilization rate of the medicine and reduces the waste of medicine. After the medicine is squeezed into the feeding tube 41, the heating tube 43 heats the heating chamber 42, and the medicine can be mutually contacted and exchanged heat through the feeding tube 41 to heat the medicine, so that the patient feels comfortable when taking the medicine and reduces the pain. The liquid medicine thus enters the application head 51 through the extension tube 108.

[0077] As the medical staff continuously pulls the trigger 303, the medicine continues to enter the patient's anus, and the power shaft 35 drives the eccentric shaft 501 to rotate, and the eccentric shaft 501 thereby drives the transverse rod 502 and the longitudinal rod 503 to move, and the longitudinal rod 503 drives the shaft 506 to perform reciprocating lifting and lowering motions, so that the shaft 506 drives the extension tube 108 to rotate, and the extension tube 108 drives the applicator head 51 to rotate, and the applicator head 51 can make the medicine evenly distributed in the patient's anus, and the ball 53 on the applicator head 51 can better apply the medicine while massaging the patient's anus, thereby improving the efficiency, accuracy and patient comfort of anal medication.

[0078] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A device for applying anal medicine to anorectal area, characterized in that: It comprises a driving component, a medicine supply component and a medicine coating component which are arranged in a gun body (101); The medicine applicator assembly comprises a coating head (51) arranged at the muzzle, a medicine outlet cavity is arranged in the coating head (51), and a plurality of medicine outlets (52) connected to the medicine outlet cavity are arranged around the side wall of the coating head (51); the end of the coating head (51) is closed; The medicine supply assembly comprises a medicine supply tube (404) with one end connected to the medicine cavity, and the other end of the medicine supply tube is connected to the ointment tube (13) through the ointment cover (12); The driving assembly comprises a peristaltic pump arranged on the drug delivery tube (404), and the power shaft (35) of the peristaltic pump is linked by a trigger through a ratchet wheel assembly; The ratchet wheel assembly comprises a toothed driving wheel (305) and a driven wheel (33), wherein the driving wheel is coaxial with the trigger, the shaft of the driven wheel is a power shaft (35), and the driven wheel rotates along a circular guide rail (31) arranged on the wheel side; The power shaft (35) is fixedly connected to a circular plate (36); the circular plate is provided with a radial claw groove, and a ratchet (38) placed in the claw groove and supported by a first spring is engaged with ratchet teeth arranged in the wheel ring of the driven wheel.

2. The anal medicine applicator according to claim 1, characterized in that: The gun body is provided with a reset spring (302) connected to the trigger.

3. The anal medicine applicator according to claim 1, characterized in that: The driving wheel (305) is a semicircular wheel.

4. The anal medicine applicator according to claim 1, characterized in that: Also included is a telescopic assembly; The telescopic assembly comprises a threaded rod (104) threadedly connected to the gun body in the transverse direction, one end of the threaded rod (104) is connected to the coating head (51) inside the gun body, and the other end is fixedly connected to a rotating plate (105) outside the gun body.

5. The anal medicine applicator according to claim 1, characterized in that: Also includes a swing assembly (5); The swing assembly (5) comprises an eccentric shaft disposed at both ends of the power shaft (35), a pair of L-shaped lifting rods and a pair of L-shaped shaft rods; the transverse rod of the lifting rod is provided with a swing groove, the shaft end of the eccentric shaft is placed in the swing groove, and the longitudinal rod of the lifting rod is provided with a sliding hole; the shaft rod is arranged horizontally, one end of the shaft rod is placed in the sliding hole, and the other end of the shaft rod is connected to the end of the extension tube (108) at the end of the coating head (51); The axial connection between the pair of shaft rods and the ends of the extension tube (108) is 90 degrees along the circumferential direction.

6. The anal medicine applicator according to claim 5, characterized in that: Including preheating components; The preheating assembly comprises a heating tube (43) arranged in the wall of the extension tube (108), and the drug delivery tube (404) supplies medicine to the application head (51) through the tube cavity of the extension tube (108).

7. The anal medicine applicator according to claim 1, characterized in that: It also includes an anal expansion component (2) arranged at the muzzle; The anal expansion assembly (2) comprises a pair of expansion rods (205) hinged at the muzzle, and an anal expansion plate (207) is fixedly connected to the ends of the expansion rods (205); The expansion rod (205) is V-shaped and has a column cavity in the transverse direction; one end of the top rod (203) is placed in the column cavity through a connecting column (204), and the other end is linked by a cylinder (201) through a hinge (202).

8. The anal medicine applicator according to claim 1, characterized in that: Also includes an expansion assembly (6); The expansion assembly (6) comprises a hydraulic chamber (62) arranged in the side wall of the smear head (51); corresponding to the hydraulic chamber (62), the side wall of the smear head (51) is provided with a plurality of expansion membranes (63); The liquid supply unit supplies liquid to the liquid storage chamber.

9. The anal medicine applicator according to claim 1, characterized in that: A plurality of rolling balls (53) are provided on the side wall of the application head (51) between the drug outlets (52).

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