A sterile gel balanced and uniform drug dispenser

Abstract

The present invention discloses a sterile gel balanced and uniform drug dispenser, which includes a conical tube. A guiding head for extruding the sterile gel along the end face and the side face is installed at the tail end of the conical tube. A mounting head for extruding the sterile gel in multiple strands along the end face is detachably connected inside the guiding head. A sealing ring for closing the side outlet is detachably sleeved on the outer surface of the guiding head. An ointment cap is sleeved on the outer surface of the sealing ring. A closing assembly for closing the end face outlet of the guiding head and guiding the sterile gel to be extruded along the side outlet is detachably installed inside the ointment cap. The guiding head includes a tube structure fixedly installed at the tail end of the conical tube, and a side guiding outlet for dispersing and guiding the sterile gel during extrusion is arranged on the tube structure. This drug dispenser is not only applicable to the application of sterile gel on the wound surface of the patient's body, but also applicable to the application on the inner walls of the urethra and ear canal. In addition, the overall structure is split and combined, which is convenient for cleaning, disinfection and sterilization.

Description

Technical Field

[0001] The present invention relates to the technical field of drug delivery devices, and particularly to a sterile gel balanced and uniform drug delivery device. Background Art

[0002] At the present stage, when using the sterile gel to smear the wound, it is necessary to squeeze the drug storage container, so that the sterile gel flows along the tube wall of the drug storage container to the rear end opening of the extrusion head and is discharged in a thick strip shape. Subsequently, it drops down to the wound on the patient's body surface. Among them, since the sterile gel is not only applicable to various sizes and types of body surface wounds, but also can assist in the local anesthesia, local drug delivery, and treatment of infections in various human body cavities such as the urethra, ear canal, oral cavity, and nasal cavity. Generally, when the sterile gel is extruded in a thick strip shape from the tail end, it is easy to appear the phenomenon of local accumulation, resulting in serious uneven drug delivery and unable to meet the requirements of external medicine smearing; the traditional drug delivery device has too small drug delivery pipes for drug delivery to various body cavity positions such as the urethra, ear canal, oral cavity, and nasal cavity, resulting in safety risks; problems such as slow drug delivery speed, low patient comfort, and difficult operation for medical staff. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a sterile gel balanced and uniform drug delivery device to solve the problem of the single application of the drug delivery device only for smearing the sterile gel on the body surface wounds of patients as mentioned in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: a sterile gel balanced and uniform drug delivery device, including a conical tube, a guiding head for extruding the sterile gel along the end face and the side face is installed at the tail end of the conical tube, a mounting head for extruding the sterile gel in multiple strands along the end face is detachably connected inside the guiding head, a sealing ring for closing the side outlet is detachably sleeved on the outer surface of the guiding head, an ointment cap is sleeved on the outer surface of the sealing ring, and a closing component for closing the end face outlet of the guiding head and guiding the sterile gel to be extruded along the side outlet is detachably installed inside the ointment cap;

[0005] The guiding head includes a tube structure fixedly installed at the tail end of the conical tube, a side guiding outlet for dispersing and guiding the extrusion of the sterile gel during extrusion is arranged on the tube structure, and a first claw protrusion for buckling with the mounting head and the closing component is installed on the inner wall of the tube structure.

[0006] Preferably, the side guiding outlet is at least two extrusion holes arranged circumferentially, and its shape is any one of a circle, a rectangle, and a trapezoid with a width gradually increasing from inside to outside and arranged obliquely.

[0007] Preferably, the closing assembly includes a guiding structure for guiding the sterile gel to disperse laterally to the outlet when closing the outlet at the rear end face of the tubular structure, and a first snap ring for snap-connecting with the claw protrusion on the inner wall of the tubular structure is fixedly sleeved on the outer surface of the guiding structure;

[0008] The guiding structure consists of a front end portion and a rear end portion, and the shape of the rear end portion is any one of a cylindrical shape and a frustum shape, and the shape of the front end portion is any one of a conical shape and a shape that expands from the front side central axis backward to both sides.

[0009] Preferably, a flow channel cavity is arranged inside the guiding structure, and a plugging head for closing the front end outlet of the flow channel cavity is installed at the front end of the guiding structure, and the shape of the plugging head is any one of a flat strip shape and a cylindrical shape.

[0010] Preferably, the ointment cap includes a cap sleeve adapted to the outer diameter of the sealing ring, a protective cylinder is installed on the back of the cap sleeve, and a second claw protrusion for snap-connecting with the adding head and the closing assembly is installed on the inner wall of the protective cylinder.

[0011] The depth of the protective cylinder is greater than the lengths of the adding head and the closing assembly.

[0012] Preferably, the adding head includes a shrinking head, a second snap ring adapted to the first claw protrusion and the second claw protrusion is fixedly sleeved on the outer surface of the shrinking head, a tongue-shaped coating head is installed at the rear end of the shrinking head, a plurality of semi-circular massage protrusions are installed at the bottom of the tongue-shaped coating head, and a lead-out hole communicating with the inside of the tongue-shaped coating head is opened in the middle of the bottom surface of the massage protrusion.

[0013] Preferably, the tongue-shaped coating head is inclined downward from front to back, and the inclination angle is between 20° and 40°, and the bottom surface of the tongue-shaped coating head is arranged in an arc shape.

[0014] Preferably, a connecting pipe is installed at the front end of the conical tube, a conical anti-overflow ring is installed at the transition section between the connecting pipe and the conical tube, and vertical rib anti-slip patterns are arranged on the outer surface of the connecting pipe.

[0015] By means of the above technical solutions, the present invention provides a sterile gel balanced and uniform dispenser, which at least has the following beneficial effects:

[0016] 1. The present invention can adjust the extrusion direction of the sterile gel at the outlet head according to the application requirements of the wound on the patient's body surface or the inner walls of the patient's urethra and ear canal, so as to effectively improve the application range of the dispenser.

[0017] 2. The present invention utilizes the extrusion holes provided on the surface of the tube structure to enable the aseptic gel to be discharged outward in a diffusive manner, thereby ensuring that the aseptic gel is smeared over a large area on the inner wall of the patient's urethra or ear canal. Subsequently, by rotating the applicator, the outer wall of the tube structure is scraped against the aseptic gel to cover a larger area at the corresponding position, thereby further increasing the uniformity of the application of the aseptic gel.

[0018] 3. All components such as the outlet head, sealing ring, additional head, ointment cap, and closing assembly of the present invention are in a detachable connection state, which facilitates cleaning and sterilization and ensures the aseptic requirements of the aseptic preparation product for the applicator.

[0019] 4. The present invention uses the closing assembly to seal the outlet at the end face of the outlet head and guides the aseptic gel to diffuse more evenly along the inner wall of the outlet head. Subsequently, it is discharged outward along the side guiding outlet on the surface of the tube structure, thereby effectively improving the thoroughness of the discharge of the aseptic gel transported into the outlet head to the side guiding outlet, and at the same time effectively avoiding the accumulation and residue of the aseptic gel at the position where the rear end face of the tube structure is blocked.

[0020] 5. The closing assembly of the present invention can not only be used to block the outlet at the rear end face of the tube structure, but also be turned over 180° and inverted inside the tube structure to connect the flow channel cavity with the inner cavity of the tube structure. By cutting open the flat or cylindrical plug head, it is convenient to apply anti-inflammatory drugs to patients undergoing double eyelid surgery or ear piercing.

[0021] 6. A plurality of outlet holes are used to disperse the aseptic gel extruded along the opening at the rear end face of the outlet head, so that it is evenly smeared on the surface of the patient's wound in multiple thin strips, thereby effectively improving the uniformity of the application of the aseptic gel. In cooperation with a number of massage protrusions, the thin strips of aseptic gel are slightly scraped to spread them out, thereby further improving the uniformity of the application of the aseptic gel on the patient's wound, increasing the absorption efficiency of the drug at the wound, and improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

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

[0025] Figure 3 is a schematic cross-sectional structure diagram of the conical tube and the outlet head of the present invention;

[0026] Figure 4Schematic diagram of the split structure of the export head and guiding structure of the present invention;

[0027] Figure 5 Schematic diagram of the sectional structure of the closing assembly of the present invention;

[0028] Figure 6 Schematic diagram of the split structure of the ointment cap and the closing assembly of the present invention;

[0029] Figure 7 Schematic diagram of the split structure of the installation head and the protective cylinder of the present invention;

[0030] Figure 8 Schematic diagram of the structure of the installation head of the present invention;

[0031] Figure 9 Front view schematic diagram of the installation head of the present invention.

[0032] In the figure:

[0033] 1. Conical tube;

[0034] 2. Export head; 201. Tube body structure; 202. Side guiding outlet; 203. Claw protrusion I;

[0035] 3. Installation head; 301. Shrinkage head; 302. Tongue-shaped coating head; 303. Massage protrusion; 304. Export hole;

[0036] 4. Sealing ring;

[0037] 5. Ointment cap; 501. Cap sleeve; 502. Protective cylinder; 503. Claw protrusion II;

[0038] 6. Closing assembly; 601. Guiding structure; 602. Flow channel cavity; 603. Plugging head;

[0039] 7. Connecting pipe; 701. Conical anti-overflow ring. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0041] Embodiment 1

[0042] At present, the applicator usually uses its rear opening as the extrusion port of sterile gel, and the extruded sterile gel will naturally fall down to the wound on the upper surface of the patient's body. However, for deep or internal channels such as the ear canal and urethra, due to the structure of the ear canal and urethra being close to the shape of a circular groove, when using the applicator with the rear opening for administration, local accumulation will occur, resulting in serious uneven administration. Figures 1-9 This embodiment proposes a sterile gel balanced and uniform speed drug delivery device, which can effectively improve the applicability of the drug delivery device to wounds on the patient's body surface, as well as the urethra and ear canal. The drug delivery device has a conical tube 1 as a transition section when the sterile gel is extruded. The inner hole design size at the entrance of the conical tube is (7-10) mm, forming a second-level transition with the extrusion port when the gel flows out, and the inner surface of the conical tube is smooth to facilitate the flow of the gel. The extruded gel is uniform and fast, which is conducive to enabling medical staff to easily complete the sterile gel delivery with one hand, making medication more convenient and time-saving.

[0043] On the basis of the above, the outlet head 2 installed at the tail end of the tapered tube 1 is used to quickly extrude the sterile gel along the outlet, the removable mounting head 3 connected inside the outlet head 2 is used to extrude the sterile gel in multiple strands along the end face, the sealing ring 4 removably sleeved on the outer surface of the outlet head 2 is used to prevent the gel from leaking from the side, the outer surface of the sealing ring 4 is sleeved with an ointment cap 5, and the closing component 6 removably installed inside the ointment cap 5 is used to close the outlet of the end face of the outlet head 2 and guide the sterile gel to extrude along the side outlet, the tapered tube 1 and the installed connecting tube 7 are integral injection molding integrally formed structures and the inner wall is smooth, and the outer surface of the connecting tube 7 is provided with vertical ridge anti-skid lines. In actual application, after the drug delivery device is combined with a drug storage container (including various pharmaceutical containers such as drug storage containers, aluminum-plastic tubes, plastic tubes, plastic bottles, etc.), the drug delivery method 1: when used for drug delivery in various cavities of the human body such as urethra, ear canal, oral cavity, nasal cavity, etc., the sealing ring 4 is removed from the side of the outlet head 2, and the closing component 6 is inserted into the outlet head 2 to block its end face outlet. Then, by squeezing the medicine storage container, the sterile gel inside it enters the interior of the conical tube 1 along the connecting tube 7, and then enters the interior of the outlet head 2, and the sterile gel is quickly discharged along the side outlet into the human body cavity medication site. Medication method two: When used for human body surface medication, the sealing ring 4 is sleeved on the outside of the outlet head 2, tightly fitted, used to block the side outlet of the outlet head 2, and the installation head 3 is inserted into the outlet of the end face of the outlet head 2, or the closing component 6 is inserted upside down at the end face of the outlet head 2, so that in the subsequent process of squeezing the medicine storage container, the sterile gel entering the outlet head 2 can be discharged from the applicator suitable for various surface wounds. This method is more suitable for the treatment of various surface wounds of patients, ensuring uniform coating and good patient compliance. The combination of the two methods can improve the scope of application of the drug delivery device.

[0044] The outlet head 2 of this embodiment includes a tube structure 201 fixedly mounted at the tail end of the tapered tube 1, a side guide outlet 202 is arranged on the tube structure 201 to disperse and guide the sterile gel when it is squeezed, and a claw protrusion 203 for buckling with the mounting head 3 and the closing component 6 is installed on the inner wall of the tube structure 201. The side guide outlet 202 is two circumferentially arranged extrusion holes, and its shape is a trapezoidal shape with gradually increasing width from the inside to the outside and arranged obliquely. When the outlet on the rear side of the outlet head 2 is blocked and the drug storage container connected to the connecting tube 7 is squeezed, the sterile gel is finally discharged outwardly along at least two extrusion holes arranged on the side surface of the tube structure 201, ensuring that the sterile gel is applied to the inner wall of the patient's urethra or ear canal in a large range, and then by rotating or pulling the applicator back and forth, the outer wall of the tube structure 201 is controlled to scrape the sterile gel, so that it covers the corresponding position in a larger range, thereby further increasing the uniformity of the sterile gel application.

[0045] Specifically, the conical anti-overflow ring 701 serves as a transition connection between the conical tube 1 and the connecting tube 7, which can facilitate a perfect fit with the matching opening of the ointment tube. The smooth inner wall avoids step dead corners and prevents leakage of sterile gel, and can also better complete the first-level transition when the sterile gel flows out.

[0046] More specifically, in this embodiment, the outlet head 2, the sealing ring 4, the installation head 3, the ointment cap 5 and the closing component 6 are all in a detachable connection state, thereby facilitating cleaning and sterilization and ensuring the sterility requirements of the applicator for the sterile preparation product.

[0047] When the outlet at the rear end face of the outlet head 2 is blocked and the medicine storage container connected to the applicator is squeezed, part of the ointment entering the outlet head 2 will accumulate on the rear wall of the outlet head 2, resulting in incomplete extrusion of the sterile gel. Figure 2 , Figure 4 and Figure 5As shown in the figure, the closing assembly 6 includes a guiding structure 601 for guiding the sterile gel to disperse laterally to the side outlet 202 when closing the rear end face outlet of the closed tube structure 201. A first snap ring for snap-connecting with the first claw protrusion 203 on the inner wall of the tube structure 201 is fixedly sleeved on the outer surface of the guiding structure 601. The guiding structure 601 is composed of a front end part and a rear end part, and the shape of the rear end part is cylindrical, and the shape of the front end part is a shape that expands from the front central axis to both sides backward. When the guiding structure 601 with the above shape is snap-connected and combined with the first claw protrusion 203 on the tube structure 201 through the first snap ring, the outlet of the rear end face of the tube structure 201 can be blocked by the guiding structure 601, so that the sterile gel squeezed into the tube structure 201 diffuses and is extruded along the inclined outer walls on both sides of the front end of the guiding structure 601 to the side where the side outlet 202 is located, thereby effectively improving the thoroughness of the sterile gel transported to the side outlet 202 of the outlet head 2 when being discharged. In addition, a flow channel cavity 602 is arranged inside the guiding structure 601, and a plugging head 603 is installed at the front end of the guiding structure 601. Its shape is flat strip-shaped and is used to block the front end outlet of the flow channel cavity 602.

[0048] The following embodiments are all different implementation manners based on the above-mentioned first embodiment, and the same parts will not be described in detail again.

[0049] Embodiment 2

[0050] As Figure 4 shown, the side outlet 202 is a plurality of extrusion holes arranged circumferentially, and its shape is circular. The sterile gel extruded along the side of the outlet head 2 is arranged in a circumferential dot pattern, thereby further improving the uniformity when applying the sterile gel to the inner walls of the patient's urethra and ear canal.

[0051] Embodiment 3

[0052] As Figure 4 shown, the guiding structure 601 is composed of a front end part and a rear end part, and the shape of the rear end part is frustum-shaped, and the shape of the front end part is conical. The guiding structure 601 with a frustum-shaped front end and a conical rear end can cause a gap that gradually decreases from front to back between itself and the inner wall of the tube structure 201, so that the sterile gel squeezed into the tube structure 201 can be more evenly diffused around, effectively avoiding the aggregation and residue of the sterile gel at the position where the rear end face of the tube structure 201 is blocked, and being more suitable for the tube structure 201 with a plurality of circular extrusion holes on its surface.

[0053] Embodiment 4

[0054] As Figures 2-3 and Figure 5As shown in the figure, the closing assembly 6 includes a guiding structure 601. A first snap ring is fixedly sleeved on the outer surface of the guiding structure 601. The guiding structure 601 consists of a front end part and a rear end part. The shape of the rear end part is cylindrical, and the shape of the front end part is a shape that expands from the front side central axis to both sides backward. A flow channel cavity 602 is arranged inside the guiding structure 601. A plugging head 603 for closing the front end outlet of the flow channel cavity 602 is installed at the front end of the guiding structure 601, and the shape of the plugging head 603 is flat strip-shaped. By turning the closing assembly 6 upside down by 180° and buckling it inside the pipe body structure 201, the flow channel cavity 602 is communicated with the inner cavity of the pipe body structure 201, and the flat strip-shaped plugging head 603 is cut open, so that the flat end of the flow channel cavity 602 is exposed. When squeezing the medicine storage container, it is convenient for the sterile gel to be discharged along the flat end of the flow channel cavity 602. With its flat shape feature, it is more suitable for the patients who have double eyelid surgery to use for anti-inflammatory medication.

[0055] Example Five

[0056] As Figures 2-4 shown in the figure, the closing assembly 6 includes a guiding structure 601. A first snap ring is fixedly sleeved on the outer surface of the guiding structure 601. The guiding structure 601 consists of a front end part and a rear end part. The shape of the rear end part is frustum-shaped, and the shape of the front end part is conical. A flow channel cavity 602 is arranged inside the guiding structure 601. A plugging head 603 is installed at the front end of the guiding structure 601, and the shape of the plugging head 603 is cylindrical. The same combination method is used to assemble the closing assembly 6 and the pipe body structure 201, and the cylindrical plugging head 603 on the guiding structure 601 is also cut open, so that the pointed end of the flow channel cavity 602 is exposed. When squeezing the medicine storage container, it is convenient for the sterile gel to be discharged along the pointed end of the flow channel cavity 602. With its pointed shape feature, it is more suitable for the patients who have ear piercing to use for anti-inflammatory medication.

[0057] Example Six

[0058] As Figures 2-7 shown in the figure, the ointment cap 5 includes a cap sleeve 501 adapted to the outer diameter of the sealing ring 4. A protective cylinder 502 is installed on the back of the cap sleeve 501. A second claw protrusion 503 for buckling with the adding head 3 and the closing assembly 6 is installed on the inner wall of the protective cylinder 502. The depth of the protective cylinder 502 is greater than the lengths of the adding head 3 and the closing assembly 6. When it is necessary to use the outlet on the rear side end face of the outlet head 2, the closing assembly 6 for plugging the outlet on the rear side end face of the outlet head 2 can be assembled inside the protective cylinder 502; when it is necessary to use the side outlet of the outlet head 2, the closing assembly 6 is assembled with the outlet head 2, and the sealing ring 4 can be inserted into the inside of the cap sleeve 501, and the adding head 3 is assembled inside the protective cylinder 502. Thus, when adjusting the gel extrusion direction of the medicine applicator, the problem that the parts have nowhere to be placed is effectively avoided.

[0059] Example Seven

[0060] When applying sterile gel to a wound on the patient's body surface, the usually extruded sterile gel is in a thick strip shape, so that the sterile gel cannot evenly cover the entire wound surface, resulting in insufficient or excessive coverage in some areas, thus affecting the uniform effect of the drug. To effectively improve the uniformity of applying sterile gel to the wound on the patient's body surface. As Figure 2 , Figure 3 , Figures 7-9 shown, the installation head 3 includes a contraction head 301. A second retaining ring adapted to the first claw protrusion 203 and the second claw protrusion 503 is fixedly sleeved on the outer surface of the contraction head 301. A tongue-shaped coating head 302 is installed at the rear end of the contraction head 301. A number of semi-circular massage protrusions 303 are installed at the bottom of the tongue-shaped coating head 302. A lead-out hole 304 communicating with the inside of the tongue-shaped coating head 302 is opened in the middle of the bottom surface of the massage protrusion 303. The tongue-shaped coating head 302 is inclined downward from front to back, and the inclination angle is between 20° and 40°. The bottom surface of the tongue-shaped coating head 302 is arranged in an arc shape. The sterile gel extruded along the opening on the rear end face of the lead-out head 2 is dispersed by a number of lead-out holes 304, so that it is evenly coated on the patient's wound surface in a number of thin strips, thereby effectively improving the uniformity of the application of the sterile gel. Subsequently, with the continuous application when the applicator moves backward, it can cooperate with a number of massage protrusions 303 to slightly scrape the thin strip-shaped sterile gel and spread it out, thereby further improving the uniformity of the application of the sterile gel on the patient's wound, improving the absorption efficiency of the drug at the wound, and improving the treatment effect. In addition, the inclined tongue-shaped coating head 302 and the inclined bottom surface of the rear half of the tongue-shaped coating head 302 are provided to more effectively improve the comfort and convenience during application.

[0061] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A sterile gel balanced and uniform speed dosing device, comprising a conical tube (1), characterized in that: The tail end of the conical tube (1) is provided with a delivery head (2) for extruding the sterile gel along the end face and the side face, a mounting head (3) for extruding the sterile gel along the end face in multiple strands is detachably connected to the inside of the delivery head (2), a sealing ring (4) for closing the side face outlet is detachably sleeved on the outer surface of the delivery head (2), an ointment cap (5) is sleeved on the outer surface of the sealing ring (4), and a closing component (6) for closing the end face outlet of the delivery head (2) and guiding the sterile gel to be extruded along the side face outlet is detachably installed inside the ointment cap (5); The outlet head (2) comprises a tube body structure (201) fixedly mounted on the rear end of the conical tube (1), a side guide outlet (202) for dispersing and discharging the sterile gel during extrusion is arranged on the tube body structure (201), and a claw protrusion (203) for buckling with the installation head (3) and the closing component (6) is installed on the inner wall of the tube body structure (201); The closing component (6) comprises a guide structure (601) for guiding the sterile gel to the side and dispersing it at the outlet (202) when closing the outlet at the rear end face of the tube structure (201); A flow channel cavity (602) is provided inside the guide structure (601), and a plugging head (603) for closing the front end outlet of the flow channel cavity (602) is installed at the front end of the guide structure (601), and the plugging head (603) is in the shape of a flat strip or a cylinder.

2. A sterile gel balanced and uniform speed drug delivery device according to claim 1, characterized in that: The side guide outlets (202) are at least two circumferentially arranged extrusion holes, and their shapes are any one of a circle, a rectangle, or a trapezoid with a width that gradually increases from the inside to the outside and is arranged obliquely.

3. The sterile gel balanced and uniform speed drug delivery device according to claim 1, characterized in that: A buckle ring is fixedly sleeved on the outer surface of the guide structure (601) and is used for buckling with a claw protrusion (203) on the inner wall of the tube structure (201); The guide structure (601) is composed of a front end portion and a rear end portion, and the rear end portion is in the shape of a cylinder or a truncated cone, and the front end portion is in the shape of a cone or a shape extending backwards from the front central axis to both sides.

4. The sterile gel balanced and uniform speed drug delivery device according to claim 1, characterized in that: The ointment cap (5) comprises a cap sleeve (501) adapted to the outer diameter of the sealing ring (4), a protective cylinder (502) being mounted on the back of the cap sleeve (501), and a second claw protrusion (503) for buckling with the mounting head (3) and the closing component (6) being mounted on the inner wall of the protective cylinder (502); The depth of the protective cylinder (502) is greater than the length of the installation head (3) and the closing component (6).

5. The sterile gel balanced and uniform speed drug delivery device according to claim 1, characterized in that: The mounting head (3) comprises a shrinking head (301), a buckle ring (201) adapted to a first clamping claw protrusion (203) and a second clamping claw protrusion (503) being fixedly sleeved on the outer surface of the shrinking head (301), a tongue-shaped coating head (302) being mounted at the rear end of the shrinking head (301), a plurality of semicircular massage protrusions (303) being mounted at the bottom of the tongue-shaped coating head (302), and a guide hole (304) communicating with the interior of the tongue-shaped coating head (302) being provided in the middle of the bottom surface of the massage protrusion (303).

6. A sterile gel balanced and uniform speed drug delivery device according to claim 5, characterized in that: The tongue-shaped coating head (302) is inclined downward from front to back, and the inclination angle is between 20° and 40°. The bottom surface of the tongue-shaped coating head (302) is arranged in an arc shape.

7. The sterile gel balanced and uniform speed drug delivery device according to claim 1, characterized in that: A connecting pipe (7) is installed at the front end of the conical pipe (1), a conical anti-overflow ring (701) is installed at the transition section between the connecting pipe (7) and the conical pipe (1), and vertical anti-slip patterns are provided on the outer surface of the connecting pipe (7).

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