Ointment coating device for systemic lupus erythematosus

Abstract

The invention discloses an ointment coating device for systemic lupus erythematosus, which comprises a tube body, the tube body is fixedly connected with a fixing seat, the fixing seat is used for fixing an ointment hose body, the fixing seat is detachably connected with a roller seat, the roller seat is rotatably connected with a detachable ointment coating roller, the ointment coating roller is matched with the fixing seat to form a temporary storage bin, and the temporary storage bin is provided with a plurality of ointment coating holes. A guide pipe is fixed to the fixing base, the lower end of the guide pipe extends to the temporary storage bin, a medicine feeding assembly is arranged in the temporary storage bin and can be matched with the medicine applying roller, the medicine applying roller is further rotationally connected with a one-way assembly, and the one-way assembly can limit the working period of the medicine applying roller. According to the device, the use cycle of the medicine applying roller can be limited, the medicine applying roller can be rapidly replaced, the ointment hose can be replaced, the storage and use safety of ointment in the device is improved, and rehabilitation treatment of a user can be promoted.

Description

Technical Field

[0001] The invention relates to the technical field of ointment application, in particular to an ointment coating device for systemic lupus erythematosus. Background Art

[0002] Systemic lupus erythematosus (SLE) is a chronic diffuse connective tissue disease caused primarily by abnormal activation of the immune system, which attacks the body's own tissues. Most SLE patients will develop a rash at some stage of the disease. The rash has various forms, and butterfly rash is a rash unique to SLE and is of great significance for disease diagnosis. The current treatment principle is early detection and early treatment, with early medication in the acute phase of SLE and maintenance medication after remission to consolidate treatment and maintain long-term stability. Patients need to take medication long-term, and squeezing the ointment onto the fingers can easily contaminate the ointment in the tube.

[0003] After searching, the patent with publication number CN 119258384 A discloses a lupus erythematosus ointment application device, which includes a drug storage tube, an application plate and a drug inlet. The drug storage tube is connected to the application plate, and the drug inlet is connected to the drug storage tube. The ointment is injected into the drug storage barrel through the drug inlet. The drug storage tube is used to store the ointment, and the application plate is used to apply it to the patient's wound. The measuring component is connected to the drug storage tube and is used to measure the size of the patient's wound; the adjusting component is connected to the drug storage tube and is activated according to the result of the wound size measurement by the measuring component. The adjusting component is used to adjust the drug storage volume; the rotating component is connected to the application plate and is used to adjust the application range of the application plate according to the size of the wound.

[0004] However, the above device still has the following problems: the ointment needs to be transferred to a drug storage tube. After periodic use, the drug storage tube is cumbersome to clean and disinfect, which is not conducive to the safe use of the ointment in the later stage. In addition, the ointment will remain on the applicator after long-term use, which is not conducive to the application of the ointment in the later stage. Summary of the Invention

[0005] In order to solve the problems in the above-mentioned prior art that the medicine in the ointment hose is easily contaminated, the applicator plate is inconvenient to replace after long-term use, and the medicine in the device must be stored for a long time, an ointment coating device for systemic lupus erythematosus is provided.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] The present invention proposes an ointment coating device for systemic lupus erythematosus, comprising a tube body, the tube body being fixedly connected to a fixing seat, the fixing seat being used to fix the ointment hose body, the fixing seat being detachably connected to a roller seat, the roller seat being rotatably connected to a detachable applicator roller, the applicator roller cooperating with the fixing seat to form a temporary storage bin, the fixing seat being fixed with a catheter, the lower end of the catheter extending to the temporary storage bin, a drug delivery component being provided in the temporary storage bin, the drug delivery component being capable of cooperating with the drug delivery roller, the drug delivery roller being further rotatably connected to a one-way component, the one-way component being capable of limiting the working cycle of the drug delivery roller, and an extrusion component cooperating with the drug delivery component being provided in the tube body.

[0008] Preferably, the fixed seat is slidably connected to a locking rod through a first elastic member, the locking rod is fixedly connected to at least one set of locking blocks, and the roller seat is provided with an auxiliary fixing groove that can cooperate with the locking block, and the locking block can fix the roller seat on the fixed seat.

[0009] Preferably, the one-way component includes two groups of first one-way bearings symmetrically arranged, the first one-way bearings are fixed on the side walls of the roller seat, and both ends of the applicator roller are rotatably connected to the first one-way bearings respectively.

[0010] Preferably, the two ends of the axial direction of the applicator roller are detachably connected to a bevel gear and a movable seat, respectively. The bevel gear is connected to the first one-way bearing on the corresponding side through a rotating shaft, and the movable seat is slidably connected to the first one-way bearing on the corresponding side through an elastic member. The movable seat can move away from the applicator roller, and when the movable seat moves, the applicator roller can be separated from the roller seat.

[0011] Preferably, the movable seat is fixed with a toothless gear, the roller seat is slidably connected to a rack, a tension spring is provided between the rack and the roller seat, the roller seat is slidably connected to a ratchet rod, the rack is provided with ratchet teeth that cooperate with the ratchet rod, and the ratchet rod can constrain the rack to move in the opposite direction.

[0012] Preferably, the drug delivery component includes a rotating shaft, the outer circumferential surface of the rotating shaft is provided with a uniformly changing spiral groove, the rotating shaft is rotatably connected to the fixed seat, the lower end of the rotating shaft extends out of the fixed seat, the lower end of the rotating shaft is fixed with a bevel gear that cooperates with the one-way component, the rotating shaft is rotatably connected to a movable plate, and the movable plate is slidably connected to the catheter.

[0013] Preferably, the movable plate is horizontally slidably connected to a sliding rod via a third elastic member, and one end of the sliding rod is slidably placed in the spiral groove of the rotating shaft.

[0014] Preferably, a second one-way bearing is provided at the lower end of the rotating shaft, and the second one-way bearing is rotatably connected to an auxiliary bevel gear, and the auxiliary bevel gear connected to the second one-way bearing can cooperate with the one-way component.

[0015] Preferably, two sets of switches are provided in the upper and lower areas of the temporary storage bin, and the two sets of switches can respectively cooperate with the drug delivery components, and the switches can control the start and stop of the extrusion component.

[0016] Preferably, the extrusion assembly includes a pair of rollers, which are slidably arranged on a roller seat through a fifth elastic member. The roller seat can drive the pair of rollers to move downward, and the pair of rollers can squeeze the ointment into the temporary storage bin when moving downward.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can evenly apply the ointment through the setting of the applicator roller, and with the cooperation of the ratchet rod, rack, toothless gear and one-way bearing, the applicator roller can measure the usage cycle when it is working. After the applicator roller rotates a certain number of times, the applicator roller becomes difficult to rotate, which reminds the user that the applicator roller has reached the usage limit and needs to be replaced with a new one, so as to ensure safety and hygiene during the application process.

[0019] 2. The present invention rotates the applicator roller and utilizes bevel gear transmission. With the cooperation of the slide rod and the rotating shaft, when applying the medicine, the unidirectional rotation of the applicator roller realizes the lowering of the movable plate. While the applicator roller is applying the medicine, the movable plate is lowered to deliver the medicine in the temporary storage bin to the applicator roller, so that the application work can be carried out continuously.

[0020] 3. The present invention arranges the first one-way bearing and the second one-way bearing. When the movable plate descends to the lowest position of the temporary storage bin, the switch can move the pair of rollers downward, allowing the ointment in the ointment hose to enter the temporary storage bin, and then the gradual increase of the ointment in the temporary storage bin forces the movable plate to reset upward. When the movable plate resets upward, the rotating shaft cooperating with the movable plate idles. When the movable plate rises to the highest point, the switch stops the pair of rollers from moving, thereby realizing automatic squeezing of the medicine in the ointment packaging tube into the temporary storage bin.

[0021] 4. The present invention separates the roller seat from the fixed seat through the locking rod, and moves the movable seat horizontally, so that the spline part of the movable seat is disengaged from the spline part of the applicator roller, which can realize the rapid disassembly and installation of the applicator roller, ensuring that the user can quickly and conveniently replace the applicator roller with a new one after a certain period of use, so as to keep the applicator roller clean and hygienic and the medicine in the temporary storage bin safe and hygienic. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0023] Figure 1 It is a three-dimensional schematic diagram of the appearance of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the fixing seat and the roller seat of the present invention;

[0026] Figure 4 In the present invention Figure 3 A magnified schematic diagram of point A;

[0027] Figure 5 In the present invention Figure 3 An enlarged schematic diagram of point D;

[0028] Figure 6 In the present invention Figure 5 K-direction schematic diagram;

[0029] Figure 7 In the present invention Figure 6 B---B cross-sectional diagram;

[0030] Figure 8 In the present invention Figure 7 An enlarged schematic diagram of point C;

[0031] Figure 9 This is a schematic diagram of the connection between the fixed seat and the roller seat in the present invention;

[0032] Figure 10 It is a schematic diagram of the three-dimensional structure of the locking rod and the locking block in the present invention;

[0033] Figure 11 Schematic diagram of the cross section of the applicator roller in the present invention;

[0034] Figure 12 Schematic diagram of the orifice of the catheter in the present invention.

[0035] Description of reference numerals:

[0036] 1. Tube body; 2. Fixed seat; 3. Roller seat; 4. Temporary storage bin; 5. Movable plate; 6. Conduit; 7. Pair of rollers; 8. Roller seat; 9. Bevel plate; 10. Screw; 11. Applicator roller; 12. Rack; 13. Toothless gear; 14. Movable seat; 15. First one-way bearing; 16. Locking rod; 17. Bevel gear; 18. Second one-way bearing; 19. Switch; 20. Rotating shaft; 21. Sliding rod; 22. Tension spring; 23. Ratchet rod; 24. Ratchet; 25. Locking block. DETAILED DESCRIPTION

[0037] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0038] Example 1

[0039] like Figure 1-12 The ointment coating device for systemic lupus erythematosus shown includes a tube body 1, an extrusion assembly is provided in the tube body 1, the extrusion assembly includes a screw rod 10, the screw rod 10 is rotatably connected in the tube body 1, the upper end of the screw rod 10 is connected to a motor through a coupling, the motor is fixed in the tube body 1, the motor is used to provide rotational power for the screw rod 10, and a power supply is also provided in the tube body 1. The motor and the power supply are connected through a wire, and two sets of switches 19 for controlling the start and stop of the motor are provided on the wire. The two sets of switches 19 cooperate to control the extrusion assembly to squeeze the ointment into the temporary storage bin 4.

[0040] A set of reset switches is also fixed on the tube body 1, and the reset switches can reset the extrusion assembly.

[0041] Specifically, the power supply is a mature product in the market, and you can purchase corresponding standard parts according to your design needs.

[0042] Specifically, the motor, switch 19 and reset switch are all mature products in the market and can be purchased according to design requirements.

[0043] Specifically, the motor has the function of rotating in both forward and reverse directions, thereby enabling the screw rod 10 to rotate in both forward and reverse directions.

[0044] Specifically, switch 19 and the reset switch are both micro switches. Micro switches, also known as sensitive switches, have a small contact spacing and a quick-action mechanism. They are small in size and are contact mechanisms that perform switching actions with specified strokes and forces. Specifically, external mechanical force acts on a spring sheet through a transmission element, causing the fixed contact and the moving contact at its end to be quickly connected or disconnected. When the force on the transmission element is removed, the spring sheet generates a reverse action force to complete instantaneous reset. It has the characteristics of small contact spacing, short action stroke, small pressing force, and rapid switching. It is widely used in electronic equipment, instrumentation, mining, power systems, electrical equipment, aerospace and other fields.

[0045] The screw rod 10 is rotatably connected to the roller seat 8. A set of auxiliary rods are provided in parallel with the screw rod 10. Under the action of the auxiliary rods, the roller seat 8 can only move upward or downward when the screw rod 10 rotates.

[0046] The roller seat 8 is symmetrically and slidingly connected with two sets of rollers 7. A fifth spring is arranged between the rollers 7 and the roller seat 8. The fifth spring provides extrusion force for the rollers 7. With the cooperation of the two sets of switches 19, the start and stop of the forward rotation of the screw rod 10 are controlled to ensure that the roller seat 8 drives the rollers 7 to move downward, and the ointment is smoothly squeezed into the temporary storage bin 4.

[0047] A chute plate 9 that cooperates with the roller seat 8 is also fixed above the tube body 1. When the roller seat 8 is located at the bottom of the screw rod 10, the reset switch can reverse the screw rod 10, drive the roller seat 8 to reset, and continue to drive the roller seat 8 to move upward. Under the action of the chute plate 9, the pair of rollers 7 are separated, making it convenient to remove the used ointment packaging tube and replace it with a new ointment hose body.

[0048] The tube body 1 is fixedly connected to the fixing seat 2 by bolts. A through hole is provided at an appropriate position of the tube body 1, and a bolt hole corresponding to the through hole is provided on the fixing seat 2. The bolt hole is used to connect the bolt. A bayonet is provided inside the fixing seat 2, and the bayonet can cooperate with the tube mouth of the ointment hose body. The fixing seat 2 is detachably connected to the roller seat 3, and the roller seat 3 is rotatably connected to a detachable applicator roller 11. The applicator roller 11 cooperates with the fixing seat 2 to form a temporary storage bin 4.

[0049] Specifically, a plurality of grooves are formed on the circumferential surface of the applicator roller 11 , and the grooves are used to bring out the ointment in the temporary storage bin 4 during rotation and apply it on the skin.

[0050] Specifically, the fixing seat 2 is also fixed with a catheter 6. One end of the catheter 6 located in the bayonet has a needle-puncture structure, which is convenient for puncturing the sealing film of the tube mouth of the ointment hose body. The other end of the catheter 6 extends downward from the fixing seat 2 and is close to the applicator roller 11. The catheter 6 is provided with a valve structure near the outlet of the applicator roller 11. The valve structure can ensure that the ointment hose is smoothly squeezed out of the ointment into the temporary storage bin 4, and can ensure that the ointment is prevented from flowing back into the ointment hose when the temporary storage bin 4 adds medicine to the applicator roller 11, thereby ensuring that the ointment in the ointment hose is clean and hygienic.

[0051] Specifically, the valve structure provided at the outlet of the catheter 6 is a one-way valve mechanism that draws on the principle of a heart valve, also known as an elastic film one-way valve structure. It is a mature design structure on the market. Its working principle is that it is a fluid control device that uses the deformation of an elastic film under the action of a pressure difference to achieve one-way on and off. The core lies in the synergistic effect of the elastic deformation response of the film and the fluid pressure difference. It has the function of opening the forward flow and cutting off the reverse flow. The valve is usually made of highly elastic materials such as silicone rubber, fluororubber or polytetrafluoroethylene (PTFE) to make the film body. When the fluid flows forward, the film is deformed to bulge outward by the thrust, forming a channel for the medium to pass through. When the fluid flows in the reverse direction, the film is pressed by the fluid to fit the valve seat to block backflow. This structural principle is used in practical applications such as screaming bottle mouths and leak-proof sports water bottle caps.

[0052] Specifically, the fixed seat 2 is slidably connected to the locking rod 16 through a first elastic member, the first elastic member is a first spring, one end of the first spring is connected to the fixed seat 2, and the other end of the first spring is connected to the locking rod 16, and the locking rod 16 is fixedly connected to at least one group of locking blocks 25, and the locking blocks 25 are L-shaped, wherein the short horizontal part of the locking block 25 extends out of the fixed seat 2, and the roller seat 3 is provided with an auxiliary fixing groove that can cooperate with the short horizontal part of the locking block 25, and the cross-section of the auxiliary fixing groove is also L-shaped, wherein a positioning protrusion is provided at the opening of the fixed seat 2, and the positioning protrusion can cooperate with the opening of the roller seat 3, and the protrusion can constrain the parallel movement of the roller seat 3 in four directions, thereby realizing that the locking block 25 can fix the roller seat 3 on the fixed seat 2.

[0053] Specifically, when fixing the roller seat 3, the locking rod 16 is pulled outward and the first spring is compressed simultaneously, so that the locking block 25 is located in the opening area of the auxiliary fixing groove of the roller seat 3. The roller seat 3 is fitted with the fixing seat 2 by using the protrusion of the fixing seat 2. The locking rod 16 is released, and under the action of the elastic force of the first spring, the short horizontal part of the locking block 25 slides into the auxiliary fixing groove of the roller seat 3, thereby fixing the roller seat 3 on the fixing seat 2. When disassembling, the locking rod 16 is pulled outward to complete the disassembly of the roller seat 3.

[0054] A movable plate 5 is slidably connected in the temporary storage bin 4, and a rotating shaft 20 is rotatably connected to the appropriate position of the fixed seat 2. The movable plate 5 is slidably sleeved on the rotating shaft 20, and the outer circumferential surface of the rotating shaft 20 is provided with a uniformly changing spiral groove. The movable plate 5 is horizontally slidably connected to the slide rod 21 through a third elastic member. The third elastic member is a third spring. One end of the third spring is connected to the slide rod 21, and the other end of the third spring is connected to the movable plate 5. One end of the slide rod 21 is slidably placed in the spiral groove of the rotating shaft 20. The movable plate 5 is also slidably sleeved on the conduit 6, so that the movable plate 5 can only move up and down, and when the rotating shaft 20 rotates forward, the movable plate 5 can move downward with the cooperation of the slide rod 21 to complete the replenishment of the medicine applicator roller 11. When the temporary storage bin 4 is replenished with medicine, the movable plate 5 moves upward, and the slide rod 21 can make the rotating shaft 20 rotate in the opposite direction.

[0055] Two sets of switches 19 are fixed on the fixed base 2 and are located at appropriate positions in the upper and lower areas of the temporary storage bin 4. The switches 19 can cooperate with the movable plate 5. When the movable plate 5 touches the switch 19 below, the ointment in the temporary storage bin 4 is used up, and the switch 19 can make the screw rod 10 rotate forward, so that the roller 7 can squeeze the ointment into the temporary storage bin 4 through the conduit 6. The ointment in the temporary storage bin 4 gradually increases, forcing the movable plate 5 to move upward. At this time, the rotating shaft 20 rotates in the opposite direction under the action of the sliding rod 21. When the movable plate 5 touches the switch 19 above, the screw rod 10 stops rotating, completing the replenishment of the medicine in the temporary storage bin 4.

[0056] The fixing seat 2 and the tube body 1 are two separable parts. In order to ensure that the two sets of switches 19 can form a path with the motor connected to the screw rod 10, a mature spring contact connector is used for connection. The working principle is that it is composed of a precision probe (metal contact) with a spring, which achieves physical contact through elastic pressure and can conduct current.

[0057] Specifically, metal contacts are provided on the fixing base 2, and matching metal contacts are also provided on the tube body 1. When the fixing base 2 is fixed to the tube body 1, the respectively fixed metal contacts are connected through the built-in springs, so that the two sets of switches 19 can control the motors respectively.

[0058] The lower end of the rotating shaft 20 extends out of the fixed seat 2, and the lower end of the rotating shaft 20 is provided with a second one-way bearing 18. The second one-way bearing 18 is rotatably connected to the auxiliary bevel gear. Under the locking function, the second one-way bearing 18 can drive the rotating shaft 20 to rotate when the auxiliary bevel gear rotates, thereby realizing the downward sliding of the movable plate 5 and the drug supply of the applicator roller 11. When the movable plate 5 moves upward, the second one-way bearing 18 can rotate the rotating shaft 20 under the action of the one-way rotation function, while the auxiliary bevel gear does not rotate.

[0059] Specifically, a one-way bearing, also known as an overrunning clutch, contains many rollers, needles or balls in its metal shell. The shape of its rolling seat allows it to roll in only one direction, while it will generate great resistance in the other direction. It achieves one-way rotation and reverse locking functions through a special mechanical structure design.

[0060] Two sets of first one-way bearings 15 are symmetrically arranged at appropriate positions on the side wall of the roller seat 3. The two ends of the axial direction of the applicator roller 11 are detachably connected to the bevel gear 17 and the movable seat 14. The movable seat 14 can move along the axis in the direction away from the applicator roller 11. When the movable seat 14 moves, the applicator roller 11 can be separated from the roller seat 3.

[0061] Specifically, the bevel gear 17 is connected to the first one-way bearing 15 on the corresponding side through a rotating shaft. The shaft end of the bevel gear 17 close to the applicator roller 11 is a spline shaft, and the corresponding area of the applicator roller 11 is processed into a spline sleeve to facilitate the separation and combination of the applicator roller 11. The bevel gear 17 cooperates with the first one-way bearing 15 to achieve that the applicator roller 11 can only rotate in one direction, that is, the entire device can only move in one direction, so that the applicator roller 11 rotates in one direction under the action of skin friction, avoiding repeated reciprocating movement during application and contamination of the applicator roller 11.

[0062] Specifically, the movable seat 14 is slidably connected to the first one-way bearing 15 on the corresponding side through the second elastic member.

[0063] Specifically, an auxiliary rotating shaft is fixed at the center of the first one-way bearing 15 on the corresponding side of the movable seat 14. The auxiliary rotating shaft and the movable seat 14 are slidably connected by a spline shaft sleeve pair, and can realize rotational transmission. The second elastic member is a second spring. One end of the second spring is connected to the movable seat 14, and the other end of the second spring is connected to the auxiliary rotating shaft fixed at the center of the first one-way bearing 15. The shaft end of the movable seat 14 on the side close to the applicator roller 11 is a spline shaft, and the corresponding area of the applicator roller 11 is processed into a spline sleeve to facilitate the separation and combination of the applicator roller 11.

[0064] Specifically, the bevel gear 17 cooperates with the auxiliary bevel gear connected to the rotating shaft 20, and with the cooperation of the first one-way bearing 15 and the second one-way bearing 18, when applying the medicine, the application roller 11 rotates under the action of the skin friction, and then the bevel gear 17 rotates under the action of the one-way rotation function of the first one-way bearing 15, driving the matching auxiliary bevel gear to rotate, and the auxiliary bevel gear cooperates with the locking function of the second one-way bearing 18 to realize the rotation of the rotating shaft 20, and then with the cooperation of the slide rod 21, the movable plate 5 slides downward, realizing automatic drug delivery to the application roller 11 during the application process.

[0065] Specifically, when the device moves in the reverse direction, the applicator roller 11 is difficult to rotate due to the locking function of the first one-way bearing 15. The user removes the device from the skin, and the applicator roller 11 contacts the skin again when applying the next area.

[0066] Specifically, when the temporary storage bin 4 is replenished with medicine, the movable plate 5 moves upward, and with the cooperation of the slide rod 21, the rotating shaft 20 rotates in the opposite direction. At this time, the rotating shaft 20 has the power to rotate in the opposite direction through the auxiliary bevel gear connected to the second one-way bearing 18. When the auxiliary bevel gear rotates in the opposite direction, the first one-way bearing 15 rotates in the opposite direction. The first one-way bearing 15 does not rotate due to the reverse locking function, and the matching auxiliary bevel gear is also difficult to rotate, so that the rotating shaft 20 utilizes the one-way rotation function of the second one-way shaft 18 to achieve idling of the rotating shaft 20 to complete the replenishment of medicine in the temporary storage bin 4.

[0067] Specifically, the spline sleeve connection is a commonly used connection method in mechanical design and belongs to the existing technology. The principle of the spline sleeve connection is to achieve torque transmission through the cooperation of internal and external splines. The internal spline is located on the inner wall of the hole, and the external spline is located on the outer wall of the shaft. Both the internal and external splines are multi-tooth parts. Through this cooperation method, torque transmission between the shaft and the hole is achieved.

[0068] The movable seat 14 is fixed with a toothless gear 13, and the roller seat 3 is slidingly connected to the rack 12. The roller seat 3 and the rack 12 are slidingly connected using a T-shaped connection structure. A tension spring 22 is provided between the rack 12 and the roller seat 3. The roller seat 3 is slidingly connected to a ratchet rod 23, and the rack 12 is provided with a ratchet 24 that cooperates with the ratchet rod 23. The ratchet rod 23 can constrain the rack 12 to move in the opposite direction to limit the working cycle of the applicator roller 11.

[0069] Specifically, a fourth elastic member is provided between the ratchet rod 23 and the roller seat 3. The fourth elastic member is a fourth spring. One end of the fourth spring is connected to the roller seat 3, and the other end of the fourth spring is connected to the ratchet rod 23. The fourth spring can make the ratchet rod 23 cooperate with the ratchet teeth 24 to realize the unidirectional movement of the rack 12.

[0070] Specifically, according to the actual use direction of the device, the moving direction of the rack 12 and the matching direction of the ratchet rod 23 are adjusted. When the applicator roller 11 rotates under the unidirectional rotation function of the first one-way bearing 15, it drives the toothless gear 13 to rotate. When the teeth of the toothless gear 13 match with the rack 12, it can drive the rack 12 to move forward and stretch the tension spring 22. At the same time, with the cooperation of the ratchet rod 23 and the ratchet 24, the unidirectional movement of the rack 22 is realized.

[0071] Specifically, after the rack 12 has moved the set length, the toothless gear 13 can no longer drive the rack 12 to move. At this time, the rack 12 limits the rotation of the toothless gear 13. When the applicator roller 11 continues to be used to apply medicine, the applicator roller 11 stops working under the cooperation of the locking function of the first one-way bearing 15 and the rack 12 limiting the rotation of the toothless gear 13, which means that the applicator roller 11 has reached its upper limit of use. In order to ensure safety, cleanliness and hygiene during medicine application, a new applicator roller 11 should be replaced.

[0072] Specifically, during replacement, the roller seat 3 is separated from the fixed seat 2 through the locking rod 16, and then the movable seat 14 is manually driven to slide away from the applicator roller 11 through the toothless gear 13 to separate the movable seat 14 from the applicator roller 11, leaving a gap, and the applicator roller 11 is manually separated from the rotating shaft of the bevel gear 17, which can be completely removed, and the new applicator roller 11 is first combined with the rotating shaft of the bevel gear 17, and then the toothless gear 13 is slowly loosened, so that the movable seat 14 is re-matched with the roller seat 11 under the action of the second spring.

[0073] Specifically, when the toothless gear 13 is translated, the toothless gear 13 is translated out of the rack 12 . Before installing a new applicator roller 11 , the ratchet rod 23 is manually pulled to release the constraint on the ratchet teeth 24 , thereby resetting the rack 12 under the action of the tension spring 22 .

[0074] A method for using a systemic lupus erythematosus ointment coating device, using the above-mentioned systemic lupus erythematosus ointment coating device, comprises the following steps:

[0075] S1: Fix the ointment hose on the fixing base 2, connect the conduit 6 with the inside of the ointment hose, and separate the rollers 7 from each other through the reset switch on the tube body 1;

[0076] Combine the fixing base 2 with the tube body 1, and the tail of the ointment tube enters the working center area of the roller 7;

[0077] The locking rod 16 is used to drive the locking block 25 to move, so that the roller seat 3 and the fixing seat 2 are combined into a whole.

[0078] S2: Rotate the applicator roller 11, use the bevel gear 17 to rotate the rotating shaft 20, and then lower the movable plate 5 to clean the remaining ointment in the temporary storage bin 4. When the movable plate 5 drops to the lowest position, it touches the switch 19 below the temporary storage bin 4, realizing the forward rotation of the screw rod 10, thereby causing the roller 7 to smoothly squeeze the ointment hose, so that the ointment is transferred to the temporary storage bin 4 through the conduit 6;

[0079] When the temporary storage bin 4 is replenished with ointment, the applicator roller 11 stops rotating, so that the ointment in the temporary storage bin 4 gradually increases, thereby causing the movable plate 5 to move upward, and with the cooperation of the first one-way bearing 15 and the second one-way bearing 18, the rotating shaft 20 realizes reverse idling;

[0080] When the movable plate 5 rises to the top, it touches the switch 19 above the temporary storage bin 4, causing the screw rod 10 to stop rotating, thereby stopping the roller 7 from moving, and completing the drug replenishment in the temporary storage bin 4.

[0081] S3: When in use, the applicator roller 11 is rolled on the skin to be applied, and the friction of the skin is used to make the applicator roller 11 rotate, thereby bringing out the medicine in the temporary storage chamber 4 to achieve the application of the medicine on the skin;

[0082] By utilizing the first one-way bearing 15, the applicator roller 11 can only rotate in one direction. Therefore, the application direction can only be in one direction, and the applicator roller 11 cannot be repeatedly moved against the skin, ensuring that the application area is not contaminated;

[0083] As the applicator roller 11 rotates, the bevel gear 17 rotates the rotating shaft 20, and then the movable plate 5 is lowered through the slide rod 21, so that the ointment in the temporary storage bin 4 is fully in contact with the applicator roller 11 and is taken out by the applicator roller 11.

[0084] S4: When the ointment in the temporary storage bin 4 is gradually taken out and the movable plate 5 drops to the lowest point, the device will automatically repeat step S2, and then manually repeat step S3 to achieve circular ointment application.

[0085] S5: As the applicator roller 11 rotates, the toothless gear 13 rotates driven by the movable seat 14. With the cooperation of the ratchet rod 23, the rack 12 is translated in one direction and the tension spring 22 is gradually stretched. When the tooth part of the rack 12 has completed its movement, the toothless gear 13 is difficult to rotate. At this time, a new applicator roller 11 needs to be replaced.

[0086] S6: Separate the roller seat 3 from the fixed seat 2 through the locking rod 16, remove the applicator roller 11 by translating the movable seat 14, then manually pull the ratchet rod 23 to reset the rack 12 under the action of the tension spring 22, and then manually put in a new applicator roller 11, loosen the movable seat 14, and re-fix the applicator roller 11.

[0087] S7: Repeat steps S2-S6 until the ointment in the ointment tube is used up, and then repeat step S1 to complete the replacement of the new ointment tube.

[0088] While 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 invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A device for applying ointment for systemic lupus erythematosus, comprising a tube body (1), wherein the tube body (1) is fixedly connected to a fixing seat (2), and the fixing seat (2) is used to fix the ointment hose body, characterized in that: The fixed seat (2) is detachably connected to a roller seat (3), and the roller seat (3) is rotatably connected to a detachable applicator roller (11). The applicator roller (11) cooperates with the fixed seat (2) to form a temporary storage bin (4). The fixed seat (2) is fixed with a conduit (6), and the lower end of the conduit (6) extends to the temporary storage bin (4). A drug delivery component is provided in the temporary storage bin (4), and the drug delivery component can cooperate with the applicator roller (11). The applicator roller (11) is also rotatably connected to a one-way component, and the one-way component can limit the working cycle of the applicator roller (11). An extrusion component that cooperates with the drug delivery component is provided in the tube body (1).

2. The ointment coating device for systemic lupus erythematosus according to claim 1, characterized in that: The fixing seat (2) is slidably connected to a locking rod (16) via a first elastic member, the locking rod (16) is fixedly connected to at least one set of locking blocks (25), the roller seat (3) is provided with an auxiliary fixing groove capable of cooperating with the locking blocks (25), and the locking blocks (25) can fix the roller seat (3) on the fixing seat (2).

3. The ointment coating device for systemic lupus erythematosus according to claim 1, characterized in that: The one-way assembly comprises two sets of symmetrically arranged first one-way bearings (15), wherein the first one-way bearings (15) are fixed on the side wall of the roller seat (3), and the two ends of the applicator roller (11) are respectively rotatably connected to the first one-way bearings (15).

4. The ointment coating device for systemic lupus erythematosus according to claim 3, characterized in that: The two ends of the axial direction of the coating roller (11) are detachably connected to a bevel gear (17) and a movable seat (14), respectively. The bevel gear (17) is connected to the first one-way bearing (15) on the corresponding side through a rotating shaft. The movable seat (14) is slidably connected to the first one-way bearing (15) on the corresponding side through an elastic member. The movable seat (14) can move in a direction away from the coating roller (11). When the movable seat (14) moves, the coating roller (11) can be separated from the roller seat (3).

5. The ointment coating device for systemic lupus erythematosus according to claim 4, characterized in that: The movable seat (14) is fixed with a toothless gear (13), the roller seat (3) is slidably connected with a rack (12), a tension spring (22) is provided between the rack (12) and the roller seat (3), the roller seat (3) is slidably connected with a ratchet rod (23), the rack (12) is provided with a ratchet (24) matched with the ratchet rod (23), and the ratchet rod (23) can constrain the rack (12) to move in the opposite direction.

6. The ointment coating device for systemic lupus erythematosus according to claim 1, characterized in that: The drug delivery component includes a rotating shaft (20), the outer circumferential surface of the rotating shaft (20) is provided with a uniformly changing spiral groove, the rotating shaft (20) is rotatably connected to the fixed seat (2), the lower end of the rotating shaft (20) extends out of the fixed seat (2), the lower end of the rotating shaft (20) is fixed with a bevel gear that matches the one-way component, the rotating shaft (20) is rotatably connected to the movable plate (5), and the movable plate (5) is slidably connected to the catheter (6).

7. The ointment coating device for systemic lupus erythematosus according to claim 6, characterized in that: The movable plate (5) is horizontally slidably connected to a slide rod (21) via a third elastic member, and one end of the slide rod (21) is slidably placed in the spiral groove of the rotating shaft (20).

8. The ointment coating device for systemic lupus erythematosus according to claim 6, characterized in that: A second one-way bearing (18) is provided at the lower end of the rotating shaft (20). The second one-way bearing (18) is rotatably connected to an auxiliary bevel gear. The auxiliary bevel gear connected to the second one-way bearing (18) can cooperate with the one-way component.

9. The ointment coating device for systemic lupus erythematosus according to claim 1, characterized in that: Two sets of switches (19) are provided in the upper and lower areas of the temporary storage bin (4). The two sets of switches (19) can respectively cooperate with the drug delivery components, and the switches (19) can control the start and stop of the extrusion component.

10. The ointment coating device for systemic lupus erythematosus according to claim 1, characterized in that: The extrusion assembly comprises a pair of rollers (7), wherein the pair of rollers (7) are slidably arranged on a roller seat (8) via a fifth elastic member, and the roller seat (8) can drive the pair of rollers (7) to move downward, and when the pair of rollers (7) move downward, the ointment can be squeezed into the temporary storage bin (4).

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