Quantitative smearing dosing device

Abstract

The utility model discloses a quantitative smearing dosing device which comprises a dosing cylinder, the outer wall of the dosing cylinder is connected with a positioning pointer through a positioning assembly, the outer wall of one side of the positioning pointer is connected with a limiting rod, the positioning assembly comprises a guide rail and a moving block, the guide rail is fixed to the outer wall of the dosing cylinder, and the moving block is fixed to the outer wall of the dosing cylinder. The moving block is in sliding fit with the inner wall of the guide rail, a moving plate is in sliding fit with the inner wall of the moving block, a button is fixed to the outer wall of one side of the moving plate, a spring is connected to one side of the moving plate, the other end of the spring is connected with the moving block, and a limiting rack is arranged on the inner wall of the guide rail. A limiting block matched with the limiting rack in a limiting mode is arranged on the outer wall of the movable plate, and the positioning pointer is connected with the movable block. Through the arrangement of the positioning assembly, the positioning pointer and the limiting rod, the extrusion amount can be preset before smearing, continuous movement of the push rod is limited after the extrusion amount is reached, and the extrusion amount can be accurately controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially relates to a quantitative smearing dosing device. BACKGROUND

[0002] Many skin diseases have infectivity on clinic, and most adopt the method of directly dosing in pathological change part when treating, in order to make the medicine be absorbed by the skin faster, mainly adopt the method of smearing ointment with fingers, and uneven smearing and cross infection are caused.

[0003] In order to solve the above problems, through the retrieval, the patent with the patent announcement number CN 213432549U discloses an ointment smearing device for dermatology, including dosing barrel, the outer wall of dosing barrel is provided with screw groove, and the outer wall of screw groove is connected with screw cap through thread, the top outer wall of screw cap is provided with screw hole, and the inner wall of screw hole is connected with screw rod through thread, the bottom outer wall of screw rod is provided with rotating disc, and the outer wall of rotating disc is rotatably connected with extrusion block, the outer wall of extrusion block and the inner wall of dosing barrel are slidably connected, the bottom outer wall of dosing barrel is provided with mounting port, and the inner wall of mounting port is fixedly connected with fixed seat, the bottom outer wall of fixed seat is provided with limiting port, and the inner wall of limiting port is rotatably connected with dosing ball.

[0004] The patent is provided with screw cap, screw rod, adjusting wheel, rotating disc and extrusion block, rotating adjusting wheel can drive screw rod to rotate, screw rod drives rotating disc to rotate, and rotating disc can drive extrusion block to slowly move down and extrude ointment, but when reaching the required extrusion amount, it needs to be determined that the extrusion amount of ointment is actively stopped by observing the relative position change of ointment in dosing barrel and scale line, and the continuous extrusion of extrusion block cannot be limited, the situation that the extrusion amount reaches the required amount is not observed in time, and a certain amount of ointment is continuously extruded, which influences the accurate control of extrusion amount. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a quantitative smearing dosing device.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A quantitative coating dosing device, comprising a dosing barrel, a positioning pointer connected to the outer wall of the dosing barrel through a positioning assembly, and a limiting rod connected to one side of the outer wall of the positioning pointer, wherein the positioning assembly comprises a guide rail fixed to the outer wall of the dosing barrel, a moving block slidingly fitted to the inner wall of the guide rail, a moving plate slidingly fitted to the inner wall of the moving block, a button fixed to one side of the outer wall of the moving plate, a spring connected to one side of the moving plate, and the other end of the spring connected to the moving block, wherein the inner wall of the guide rail is provided with a limiting rack, and the outer wall of the moving plate is provided with a limiting block limitingly matched with the limiting rack, and the positioning pointer is connected to the moving block.

[0008] As a further scheme of the present application, the inner wall of the dosing barrel is slidingly fitted with an extrusion block, the top end of the extrusion block is connected with a push rod, and the end of the limiting rod away from the positioning pointer is limitingly matched with the top end of the push rod.

[0009] As a further scheme of the present application, the positioning pointer is in the same plane with the scale line, and the side wall of the dosing barrel is provided with the scale line.

[0010] As a further scheme of the present application, one end of the dosing barrel is threadedly connected with a coating head, the other end of the dosing barrel is threadedly connected with a barrel cover, and one side of the top end of the push rod is connected with a push frame.

[0011] As a further scheme of the present application, the inner wall of the coating head is slidingly fitted with adjusting blocks at both ends, and the side walls of the ends of the two adjusting blocks away from each other are both connected with threaded rods.

[0012] As a further scheme of the present application, the side wall of the coating head is fixed with two fixed frames, and the inner parts of the two fixed frames are both rotationally connected with threaded sleeves.

[0013] As a further scheme of the present application, the inner wall of the threaded sleeve is threadedly matched with the threaded rod, and the two threaded sleeves are connected with the same rotating wheel.

[0014] Compared with the prior art, the present application provides a quantitative coating dosing device, which has the following beneficial effects:

[0015] 1. The present application can preset the extrusion amount before coating by setting the positioning assembly, the positioning pointer and the limiting rod, limit the movement of the push rod after reaching the extrusion amount, and accurately control the extrusion amount.

[0016] 2. The present application can set a longer dosing barrel to improve the storage capacity of the ointment by setting the push frame while ensuring that the device can be operated with one hand.

[0017] 3. The utility model discloses, be provided with adjusting block, threaded rod, threaded sleeve, fixed frame and rotating wheel, the size of the medicine outlet of the smearing head is adjusted before smearing, avoid the waste of ointment caused by the too big medicine outlet or the need of multiple smearing of the too small medicine outlet.

[0018] The part not involved in the device is same as the prior art or can be realized by the prior art, and the utility model has simple structure and convenient operation. ACCURATE STRUCTURE

[0019] Figure 1 The utility model provides a whole structure schematic diagram of a quantitative smearing medicine applicator;

[0020] Figure 2 The utility model provides an internal structure schematic diagram of a quantitative smearing medicine applicator;

[0021] Figure 3 The utility model provides a structure schematic diagram of a positioning assembly of a quantitative smearing medicine applicator;

[0022] Figure 4 The utility model provides a side sectional view of a guide rail of a quantitative smearing medicine applicator.

[0023] In the drawing: 1, medicine cylinder; 2, smearing head; 3, push rod; 4, positioning assembly; 5, scale line; 6, positioning pointer; 7, limit rod; 8, push frame; 9, extrusion block; 10, guide rail; 11, moving block; 12, spring; 13, button; 14, moving plate; 15, limit block; 16, limit rack; 17, adjusting block; 18, threaded rod; 19, threaded sleeve; 20, fixed frame; 21, rotating wheel. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] Embodiment 1

[0027] A quantitative smearing medicine applicator, such as Figures 1 to 3As shown, the device includes a drug delivery cartridge 1, with an application head 2 threadedly connected to one end and a cap threadedly connected to the other end. A squeezing block 9 is slidably fitted onto the inner wall of the drug delivery cartridge 1, and a push rod 3 is connected to the top of the squeezing block 9. The drug delivery cartridge 1 is made of transparent material, and a scale line 5 is provided on the side wall of the drug delivery cartridge 1. A positioning pointer 6 is connected to the outer wall of the drug delivery cartridge 1 through a positioning component 4. The positioning pointer 6 and the scale line 5 are on the same plane. A limiting rod 7 is connected to one side of the outer wall of the positioning pointer 6. The end of the limiting rod 7 away from the positioning pointer 6 is limited and fitted with the top of the push rod 3. A push frame 8 is connected to one side of the top of the push rod 3.

[0028] The positioning component 4 includes a guide rail 10 and a moving block 11. The guide rail 10 is fixed to the outer wall of the drug delivery cartridge 1. The moving block 11 is slidably fitted to the inner wall of the guide rail 10. A moving plate 14 is slidably fitted to the inner wall of the moving block 11. A button 13 is fixed to one side of the outer wall of the moving plate 14. A spring 12 is connected to one side of the moving plate 14. The other end of the spring 12 is connected to the moving block 11. A limiting rack 16 is provided on the inner wall of the guide rail 10. A limiting block 15 is provided on the outer wall of the moving plate 14 to limit and engage with the limiting rack 16. The positioning pointer 6 is connected to the moving block 11.

[0029] In use, unscrew the cap to inject the ointment into the administration cartridge 1, then screw the cap back on. Push the squeeze block 9 with the push rod 3 to squeeze the ointment, filling the gap between the squeeze block 9 and the other end of the administration cartridge 1. Then press button 13. Button 13 pushes the moving plate 14, causing the limiting block 15 to move away from the limiting rack 16. The spring 12 is compressed, allowing the moving block 11 to slide in the guide rail 10, changing the position of the positioning pointer 6. The difference between the scale indicated by the positioning pointer 6 and the scale where the ointment is closest to the squeeze block 9 equals the required amount of medication. Release button 13. The spring 12 pushes the moving plate 14 back to its original position, allowing the limiting block 15 and the limiting rack 16 to engage in a limiting engagement. The movement of the moving block 11 is restricted, and then the application head 2 is placed on the area to be applied. The application head 2 is moved slowly by the drug delivery cartridge 1, while the push rod 3 is squeezed to squeeze the ointment in the drug delivery cartridge 1 onto the application head 2, and then applied to the skin surface. When the amount squeezed out reaches the required amount, the limit rod 7 will restrict the movement of the push rod 3. During the squeezing of the push rod 3, when there is a lot of ointment in the drug delivery cartridge 1, one end of the push rod 3 is far away from the drug delivery cartridge 1. If operated with one hand, it is difficult for the fingers to touch the push rod 3. At this time, the push rod 3 can be moved by squeezing one end of the push frame 8. While ensuring that the device can be operated with one hand, the drug delivery cartridge 1 can be set to be longer to increase the storage capacity of the ointment.

[0030] By incorporating a positioning component 4, a positioning pointer 6, and a limiting rod 7, the extrusion amount can be preset before application, and the push rod 3 can be restricted from moving further after the extrusion amount is reached, thus enabling precise control of the extrusion amount.

[0031] By incorporating a pusher 8, the drug delivery cartridge 1 can be made longer, increasing the amount of ointment stored, while ensuring that the device can be operated with one hand.

[0032] Example 2

[0033] A quantitative applicator for drug delivery, this embodiment is based on embodiment 1, with the following improvements, such as... Figure 1 , Figure 4 As shown, both ends of the inner wall of the applicator head 2 are slidably fitted with adjusting blocks 17. The two adjusting blocks 17 are connected to threaded rods 18 on the side wall of one end away from each other. Two fixing brackets 20 are fixed to the side wall of the applicator head 2. Threaded sleeves 19 are rotatably connected inside the two fixing brackets 20. The inner wall of the threaded sleeves 19 is threadedly fitted with the threaded rods 18. The two threaded sleeves 19 are connected to the same rotating wheel 21.

[0034] Before application, rotate the rotating wheel 21 to drive the threaded sleeve 19 to rotate synchronously. Through the threaded engagement between the threaded sleeve 19 and the threaded rod 18, the threaded rod 18 is driven to move the adjusting block 17. Adjust the relative position of the adjusting block 17 and the application head 2 according to the size of the application area to change the size of the medicine outlet of the application head 2. This ensures that the medicine outlet of the application head 2 can fully cover the surface to be applied, avoiding waste of ointment due to an excessively large outlet or the need for multiple applications due to an excessively small outlet.

[0035] By setting up the adjusting block 17, threaded rod 18, threaded sleeve 19, fixing frame 20 and rotating wheel 21, the size of the medicine outlet of the application head 2 can be adjusted before application to avoid the medicine outlet being too large, resulting in waste of ointment, or the medicine outlet being too small, requiring multiple applications.

[0036] Working principle: Before application, rotating the rotating wheel 21 drives the threaded sleeve 19 to rotate synchronously. The threaded engagement between the threaded sleeve 19 and the threaded rod 18 drives the threaded rod 18 to move the adjusting block 17. Adjusting the relative position of the adjusting block 17 and the application head 2 according to the size of the application area changes the size of the application head 2's outlet, ensuring the outlet fully covers the surface to be applied. This avoids waste due to an overly large outlet or repeated application due to an underlying outlet. During application, unscrew the cap to inject the ointment into the medication cartridge 1, then screw the cap back on. Pushing the extrusion block 9 with the push rod 3 squeezes the ointment, filling the gap between the extrusion block 9 and the other end of the medication cartridge 1. Then, pressing button 13 pushes the moving plate 14, causing the limiting block 15 to move away from the limiting rack 16. The spring 12 compresses and deforms, allowing the moving block 11 to slide in the guide rail 10, changing the position of the positioning pointer 6. Set the difference between the mark pointed to by the positioning pointer 6 and the mark where the ointment is closest to the squeeze block 9 to equal the required amount of medicine. Release the button 13, and the spring 12 pushes the moving plate 14 to reset, so that the limiting block 15 and the limiting rack 16 engage to limit the movement of the moving block 11. Then place the application head 2 on the area to be applied, and slowly move the application head 2 by driving the drug delivery cartridge 1. At the same time, squeeze the push rod 3 to squeeze the ointment in the drug delivery cartridge 1 toward the application head 2, and then apply it to the skin surface. When the amount squeezed out reaches the required amount, the limiting rod 7 will limit the movement of the push rod 3. During the process of squeezing the push rod 3, when there is a lot of ointment in the drug delivery cartridge 1, one end of the push rod 3 is far away from the drug delivery cartridge 1. If operated with one hand, it is difficult for the fingers to touch the push rod 3. At this time, the push rod 3 can be moved by squeezing one end of the push frame 8. While ensuring that the device can be operated with one hand, the drug delivery cartridge 1 can be set to be longer to increase the storage capacity of the ointment.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quantitative applicator for drug delivery, comprising an applicator cartridge (1), characterized in that, The outer wall of the drug delivery cartridge (1) is connected to a positioning pointer (6) via a positioning assembly (4). A limiting rod (7) is connected to one side of the outer wall of the positioning pointer (6). The positioning assembly (4) includes a guide rail (10) and a moving block (11). The guide rail (10) is fixed to the outer wall of the drug delivery cartridge (1). The moving block (11) is slidably fitted to the inner wall of the guide rail (10). A moving plate (14) is slidably fitted to the inner wall of the moving block (11). A button (13) is fixed to one side of the outer wall of the moving plate (14). A spring (12) is connected to one side of the moving plate (14). The other end of the spring (12) is connected to the moving block (11). A limiting rack (16) is provided on the inner wall of the guide rail (10). A limiting block (15) is provided on the outer wall of the moving plate (14) to limit the movement of the limiting rack (16). The positioning pointer (6) is connected to the moving block (11).

2. The quantitative applicator for drug delivery according to claim 1, characterized in that, The inner wall of the drug delivery tube (1) is slidably fitted with a squeezing block (9), and the top of the squeezing block (9) is connected to a push rod (3). The end of the limiting rod (7) away from the positioning pointer (6) is limited and fitted with the top of the push rod (3).

3. The quantitative applicator for drug delivery according to claim 1, characterized in that, The positioning pointer (6) and the scale line (5) are on the same plane, and the scale line (5) is provided on the side wall of the drug delivery cylinder (1).

4. A quantitative applicator for drug delivery according to claim 2, characterized in that, One end of the drug delivery cylinder (1) is threadedly connected to an applicator (2), and the other end of the drug delivery cylinder (1) is threadedly connected to a cap. A pusher (8) is connected to one side of the top of the push rod (3).

5. A quantitative applicator for drug delivery according to claim 4, characterized in that, The inner walls of the applicator (2) are fitted with adjusting blocks (17) at both ends, and the two adjusting blocks (17) are connected to threaded rods (18) on one side wall away from each other.

6. A quantitative applicator for drug delivery according to claim 5, characterized in that, The applicator head (2) has two fixed brackets (20) fixed to its side wall, and each of the two fixed brackets (20) is rotatably connected to a threaded sleeve (19).

7. A quantitative applicator for drug delivery according to claim 6, characterized in that, The inner wall of the threaded sleeve (19) is threadedly engaged with the threaded rod (18), and the two threaded sleeves (19) are connected to the same rotating wheel (21).

Images