Drug Infusion Module Including Slip Assist Unit

Abstract

The present invention discloses a drug injection module including: a long cylinder having a storage space capable of storing a drug therein, with an outlet formed at its front end through which the drug is discharged and an open rear end; a piston inserted into the storage space through the rear end of the cylinder and sliding longitudinally to discharge the drug; and a slip assist unit having at least a portion of the outer surface of the cylinder that is protruded or recessed to form an uneven cross-sectional shape and that generates a deviation in pressure acting on the surface when the cylinder comes into contact with a user's body, the slip assist unit preventing the pressure of the human body acting around the cylinder from becoming uniform when the cylinder is inserted into the body, thereby facilitating slippage.

Description

[Technical field]

[0001] The present invention relates to a drug injection module including a slip assist unit, and more particularly to a drug injection module including a slip assist unit having multiple protrusions formed on the outside of a cylinder to pressurize the cylinder with uneven pressure when inserted into a human body, thereby easily causing slippage between the human body and the cylinder. [Background technology]

[0002] Generally, nowadays, various liquids are often injected into the human body for various purposes. For example, it can be used in a wide variety of ways, such as administering a douche to the female genitals, administering a contraceptive liquid, administering a liquid for treating hemorrhoids or sexually transmitted diseases, and administering a lubricant during sexual intercourse. At this time, since the inside of the genitals and anus of the human body are exposed mucous membranes and are very sensitive to external stimuli, the mucous membranes are easily damaged or contaminated, so it is necessary to pay close attention when administering some of the liquids listed above.

[0003] In the past, in order to improve the inconvenience of directly administering the liquid manually, devices capable of administering liquid into the body have been devised. Such liquid administration devices are often made disposable due to hygiene issues and the difficulty of cleaning, and therefore are commercially available with the liquid already contained therein. However, when a user administers a liquid into the human body, the liquid must be inserted into the human body, and this can cause pain due to friction when inserted into the human body.

[0004] In particular, when inserting or expelling a cylinder into the human body, the human body is deformed to accommodate the shape of the cylinder, and as pressure is applied to this, friction increases, blocking communication between the inside and outside of the body and creating a problem where the pressure difference makes it difficult to inject or expel drugs. Furthermore, when the device is inserted into the human body, the body's muscles relax and contract due to body signals and tension, which can make insertion and drug injection and discharge difficult. Therefore, a new solution to these problems is needed. Summary of the Invention [Problem to be solved by the invention]

[0005] The technical object of the present invention is to solve the problems mentioned in the Background of the Invention, and to provide a drug injection module including a slip assist unit that makes the pressure applied to the cylinder by the body uneven by forming a separate slip assist unit on the outer surface of a cylinder in an injection module containing a drug, and that minimizes the pressure difference between the inside and outside of the human body by forming a separate communicating space.

[0006] The technical problems that the present invention aims to solve are not limited to those mentioned above, and other technical problems not mentioned can be clearly understood by those having ordinary skill in the art to which the present invention pertains from the following. [Means for solving the problem]

[0007] The drug injection module according to the present invention, which has been devised to solve the technical problems, includes a cylinder that is long and has a storage space inside which a drug can be stored, with an outlet formed at its front end through which the drug is discharged and an open rear end, a piston that is inserted into the storage space through the rear end of the cylinder and slides longitudinally to discharge the drug, and a slip assist unit that has at least a portion of an outer surface of the cylinder that protrudes or recesses to form an uneven cross-sectional shape and generates a deviation in pressure acting on the surface when it comes into contact with a user's body, and the slip assist unit prevents the pressure of the human body acting around the cylinder from becoming uniform when the cylinder is inserted into the human body, making it easier to slip. In addition, the slip assist unit may be formed to have a certain length along the longitudinal direction of the cylinder.

[0008] In addition, the slip assist unit may be formed in a plurality of pieces around or along the length of the cylinder, and at least one of the slip assist units may be formed differently. In addition, at least one of the slip assist units may be formed to protrude along the outer surface of the cylinder, making the shape of the circumference of the cylinder non-uniform.

[0009] In addition, the slip assist unit may include a protrusion protruding from an outer surface of the cylinder, and a wing portion that is partially expanded at a protruding end of the protrusion to have a relatively larger width than the protrusion and forms a separate communication space between the cylinder. The wing portion may be curved downward toward the cylinder toward the end along the circumference and is spaced apart so as to contact the surface of the cylinder. Also, the slip assist unit may be formed as at least one depression along the outer surface of the cylinder, making the shape of the circumference of the cylinder non-uniform.

[0010] The slip assist unit may be formed to have a width in an inward direction that is relatively larger than the surface of the cylinder. The slip assist unit may be characterized in that a hole communicating between the inside and the outside is formed at least partially between the outer surface of the cylinder and the user's body. Also, the slip assist unit may be formed such that a plurality of protrusions are in contact with each other on the outer surface of the cylinder in a pattern. Effect of the Invention

[0011] The drug injection module including a slip assist unit according to the present invention includes a slip assist unit formed protruding or recessed on the outer surface of the cylinder, which not only makes it easier to insert and eject the cylinder by making the pressure distribution uneven when the cylinder comes into contact with the human body, but also forms a communicating space between the inside and outside of the human body, thereby reducing the occurrence of pressure differences. The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims. [Brief description of the drawings]

[0012] [Figure 1] 1 is a schematic diagram showing an embodiment of a drug injection module including a slip assist unit according to the present invention, the slip assist unit being formed in a protrusion shape; [Diagram 2] 1 is a diagram showing a state in which a drug injection module including a slip assist unit according to the present invention is inserted into a human body. [Diagram 3] A diagram showing the deformation of the human body when pressure is applied to the cylinder of Figure 2. [Figure 4] FIG. 4 is a diagram showing the degree of pressure acting on the cylinder of FIG. 3 when the slip assist unit is formed in a protrusion shape. [Diagram 5] FIG. 2 shows a modified form of a drug injection module including the slip assist unit of FIG. 1. [Figure 6] 1 is a view showing a state in which a slip assist unit is formed in a groove shape in a drug injection module including the slip assist unit according to the present invention. [Figure 7] FIG. 7 is a diagram showing how the body deforms and pressure acts on the cylinder inserted into the drug injection module of FIG. 6. [Figure 8] 7 is a diagram showing a modified form of the slip assist unit formed on a cylinder in the drug injection module of FIG. 6; [Figure 9] 13 is a diagram showing another modified form of a cylinder in a drug injection module including a slip assist unit according to the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, a description of a function or configuration that is already known will be omitted in order to clarify the gist of the present invention. At the same time, in describing the present invention, terms indicating directions such as front / rear or upper / lower are used only to enable those skilled in the art to clearly understand the present invention and indicate relative directions, and therefore, it can be said that the scope of the rights is not limited by these terms.

[0014] First, the configuration of one embodiment of a drug injection module including a slip assist unit according to the present invention will be described in detail with reference to FIGS. FIG. 1 is a diagram showing an outline of the configuration of an embodiment of a drug injection module including a slip assist unit according to the present invention, formed in a protrusion shape, FIG. 2 is a diagram showing a state in which a drug injection module including a slip assist unit according to the present invention is inserted into a human body, and FIG. 3 is a diagram showing deformation of the human body when pressure is applied to the cylinder of FIG. 2.

[0015] FIG. 4 is a diagram showing the degree of pressure acting at each position when the slip assist unit is formed in a protrusion shape on the cylinder of FIG. 3, and FIG. 5 is a diagram showing a modified form of a drug injection module including the slip assist unit of FIG. 1. As shown in the drawings, the drug injection module including the slip assist unit 300 according to the present invention mainly includes a cylinder 100, a piston 200 and the slip assist unit 300.

[0016] It is long and has a receiving space 110 in which a drug can be received, a front end of which is formed with an outlet 120 through which the drug is discharged, and a rear end which is open and into which a piston 200 (to be described later) is inserted. Specifically, the cylinder 100 is a general syringe type cylinder 100, and the container is filled with medicine, so that the medicine can be selectively sprayed by the user's operation. At this time, the cylinder 100 is long in the front-rear direction and is formed in an overall curved shape so that it can be inserted into the body, and the cross section is formed to have a circular shape. Therefore, it does not cause pain to the user when it is inserted into the body. In addition, the rear end of the cylinder 100 is formed so that the cross section in the horizontal direction gradually increases, so that the piston 200 can be easily inserted.

[0017] In this embodiment, the outlet 120 formed at the front end of the cylinder 100 may be provided with a cover to prevent the contained liquid from leaking through the outlet 120 before the user uses the body liquid injection device. Meanwhile, the piston 200 is inserted into the receiving space 110 through the open rear end of the cylinder 100 so as to be movable forward and backward. That is, when the piston 200 is moved forward while being inserted into the receiving space 110 in the cylinder 100, the piston 200 pushes the liquid contained in the receiving space 110 to eject it. In this embodiment, although not shown in the drawings, a separate sealing member (not shown) is provided at the front end of the piston 200, and the forward movement of the piston 200 can push and move the sealing member forward.

[0018] Therefore, the piston 200 has a front end inserted into the rear end of the cylinder 100 and slides along the longitudinal direction to pressurize and eject the drug. In this manner, the cylinder 100 and the piston 200 according to the present invention are combined to form a syringe, and the drug contained in the receiving space 110 can be selectively discharged through the outlet 120 formed at the front end.

[0019] Meanwhile, the slip assist unit 300 is formed as a protrusion or recess on the outer surface of the cylinder 100 to facilitate insertion and removal of the user by making the pressure distribution uneven when the cylinder 100 is inserted into the human body S, and also forms a communication space between the inside and outside of the human body S to reduce the occurrence of a pressure difference. Specifically, the slip assist unit 300 is formed at least partially on the outer surface of the cylinder 100 with a protruding or recessed shape to form an uneven cross-sectional shape, and generates a deviation in pressure acting on the surface when it comes into contact with the user's body.

[0020] As shown in this embodiment, a plurality of slip assist units 300 are formed to protrude from the outer surface of the cylinder 100, so that the outer surface of the cylinder 100 has a non-uniform cross-sectional shape rather than a circular shape. Here, the slip assist unit 300 may be configured in the form of a slit formed long along the longitudinal direction of the cylinder 100, and a plurality of units may be unevenly arranged in a radial shape as in the embodiment. That is, the slip assist unit 300 is formed long with a certain length along the longitudinal direction of the cylinder 100, and is configured in multiple pieces around or along the longitudinal direction of the cylinder 100, with at least one of them being configured to have a different shape or size.

[0021] As a result, the slip assist unit 300 is formed to protrude from the surface of the cylinder 100, forming an uneven cross section, which causes a pressure deviation in the part where the cylinder 100 comes into contact with the user's body S when the cylinder 100 is inserted into the user's body S. This prevents the pressure of the body S acting around the cylinder 100 from becoming uniform, and reduces friction when the cylinder 100 is inserted or removed.

[0022] In particular, looking at Figures 3 and 4, the cross-sectional shape of the cylinder 100 with the slip assist unit 300 formed on the outer surface thereof and inserted into the user's body is shown. Unlike the cylinder 100 having a uniform cross-sectional shape, the slip assist unit 300 causes the shape of the human body S in contact with the outer surface of the cylinder 100 to be substantially non-uniform. At this time, the human body S presses the cylinder 100, and if the cylinder 100 has a circular cross section, the human body S also contacts the cylinder 100 in a circular shape, and the surface may be in contact with the cylinder 100 at a uniform pressure. However, by providing the slip assist unit 300 on the outer surface of the cylinder 100 as in the present invention, the human body S contacts the cylinder 100 in an uneven manner, and thus the protruding and non-protruding parts contact the human body S at different pressures.

[0023] In other words, when the part of the outer surface of the cylinder 100 on which the slip assist unit 300 is formed and the part on which the slip assist unit 300 is not formed come into contact with the human body S, they come into contact with each other with different pressures. As a result, when the cylinder 100 is inserted or ejected, a slip occurs between the respective parts due to frictional forces, making it easier to insert and eject the cylinder 100. In particular, in this embodiment, as shown in FIG. 4, the slip assist unit 300 is configured to have a curved, protruding cross-sectional shape, and can be divided into three regions A, B, and C when in contact with the human body S.

[0024] Area A is the area where the protrusions of the slip assist unit 300 protrude and receives the highest pressure when it comes into contact with the human body S. Since the pressure is high in this area, the frictional force is also the greatest when a slip occurs. Area C is an area of ​​the cylinder 100 where the slip assist unit 300 is not present. When the area C comes into contact with the user's body S, it receives a pressure similar to that of the surrounding area, and a frictional force is generated.

[0025] Meanwhile, region B is a boundary region where the slip assist unit 300 is formed in the cylinder 100, and is located between the protruding slip assist unit 300 and the surface of the cylinder 100 where the human body S comes into contact. At this time, since it is a boundary region located between the protruding part and the non-protruding part, it is an area that receives the least pressure from the human body S due to the height difference, and therefore frictional force also acts to a minimum. Furthermore, in region B, there may be parts that do not come into contact with the human body S depending on the situation, and in such a case, a communication space that communicates the inside and outside of the human body S is formed, thereby suppressing the occurrence of a pressure difference.

[0026] In this manner, the drug injection module according to the present invention includes the cylinder 100, the piston 200 and the slip assist unit 300, and is not in the form of a simple syringe, but rather makes the pressure acting around it uneven when inserted into the human body S through the slip assist unit 300, thereby facilitating slippage, and further forms a space connecting the inside and outside of the human body S to prevent the occurrence of a pressure difference.

[0027] Meanwhile, referring to FIG. 5, a modified form of the slip assist unit 300 in the above-mentioned drug injection module is shown, and the basic form is a protrusion form. However, the slip assist unit 300 is not a simple protrusion, but has an expanded end, and is configured to form a separate communication space at the bottom.

[0028] Specifically, as shown in the drawings, the slip assist unit 300 includes a protrusion 310 protruding from the outer surface of the cylinder 100 and a wing 320 expanding from the protrusion 310 to form a communication space. The protrusion 310 is formed to protrude from the outer surface of the cylinder 100 with a certain width in a similar manner to the above-described embodiment, and contacts the user's body S. The wing 320 is formed to have a relatively larger width than the protrusion 310 by partially expanding the protruding end of the protrusion 310. At this time, the wing 320 is formed to expand along the lateral direction at the end of the protrusion 310, and thus at least a portion of the wing 320 is separated from the outer surface of the cylinder 100 to form the communication space between the cylinder 100 and the wing 320.

[0029] In this embodiment, the wing parts 320 are curved toward the cylinder 100 as they approach the edge along the circumference, and are disposed to contact the surface of the cylinder 100. That is, as shown in the figure, the wing parts 320 are formed in a mushroom shape, and a communication space is formed between the cylinder 100 and the wing parts 320, so that when the cylinder 100 is inserted into the user's body S, the outside air flows through the communication space to prevent a pressure difference from occurring. Here, the slip assisting units 300 are formed long along the longitudinal direction of the cylinder 100, and each may be formed to have the same cross-sectional shape, or may be formed in a circular or polygonal protrusion shape rather than simply in a slit shape, and the wing portions 320 may also be formed on both sides along the width direction at the end of the protrusion portion 310 or in a radial shape according to each shape.

[0030] In this manner, looking at the first embodiment of the drug injection module according to the present invention, the anti-slip unit is formed in a protrusion shape, which makes the pressure acting on the surface of the cylinder 100 uneven when it comes into contact with the human body S, facilitating the occurrence of slippage, and at the same time, forms a communicating space to suppress the pressure difference between the inside and outside of the human body S, thereby facilitating the injection of drugs.

[0031] Next, referring to FIG. 6 to FIG. 8, the drug injection module according to the second embodiment of the present invention will be described as follows. Figure 6 is a diagram showing a state in which the slip assist unit 300 is formed in a groove shape in a drug injection module including the slip assist unit 300 according to the present invention, Figure 7 is a diagram showing that when the cylinder 100 is inserted into the human body S in the drug injection module of Figure 6, the human body S deforms and pressure acts on it, and Figure 8 is a diagram showing a deformed shape of the slip assist unit 300 formed in the cylinder 100 in the drug injection module of Figure 6.

[0032] The drug injection module according to the second embodiment of the present invention has a similar basic drug injection form, but unlike the above, the slip assist unit 300 is formed in a groove form rather than a protrusion form. Specifically, the slip assist unit 300 is recessed to a certain depth on the surface of the cylinder 100 as shown in the figure, and is composed of at least one or more units, and presses the outer surface of the cylinder 100 with uneven pressure when it comes into contact with the user's body S. Here, as shown in the drawing, the slip assist unit 300 is formed long with a certain length along the longitudinal direction of the cylinder 100, and may be configured in a plurality of units spaced apart on the surface of the cylinder 100. In this case, the slip assist unit 300 may be configured to have the same shape as in the first embodiment, or may be formed to have at least some different shapes or sizes.

[0033] Also, the depth to which the slip assist unit 300 is recessed into the surface of the cylinder 100 can be configured differently. In this embodiment, the slip assist unit 300 is formed in a long slit shape along the longitudinal direction of the cylinder 100, and is formed in a recess as shown in the figure, so that a part of it penetrates into the recessed part when it comes into contact with the user's body S.

[0034] Here, as shown in the figure, when the human body S penetrates into the recessed interior of the slip assist unit 300, it comes into contact with the slip assist unit 300 with a pressure that is relatively smaller than the portion that contacts the outer surface of the cylinder 100, and as a result, when the cylinder 100 and the user's human body S come into contact with each other, the contact is uneven, making it easy for slippage to occur. In addition, a part of the human body S that penetrates the slip assist unit 300 can be positioned in a separated state without being substantially in contact, thereby forming the communication space that connects the inside and outside of the human body S.

[0035] When the slip assist unit 300 is formed in a groove shape, it contacts the surface of the cylinder 100 with uneven pressure to make the frictional force uneven, facilitating slippage when inserting and ejecting the cylinder 100. Further, referring to FIG. 8, the slip assist unit 300 is formed in a groove shape, and the width of the groove in the inner direction may be relatively larger than the surface of the cylinder 100 .

[0036] Specifically, the slip assist unit 300 is formed to have a certain length and a certain width on the surface of the cylinder 100. Here, the width L2 of the groove formed in the inner direction of the cylinder 100 is relatively larger than the width L1 formed on the surface of the cylinder 100, so that even if the user's body S enters the inside of the slip assist unit 300, a communication space can be secured. Generally, when a human body S has a certain level of elasticity, it is difficult for the width of the penetrated interior to be greater than the width of the penetrated portion even when pressure is applied when penetrating into the groove, and therefore, even when the user's body S penetrates into the slip assist unit 300, the width is smaller than the width L1.

[0037] In this embodiment, the slip assist unit 300 is formed in a trapezoidal shape and configured so that the width L1 of the part located on the surface of the cylinder is relatively small, so that even when the user's body S comes into contact with the cylinder 100 and is pressurized, the inside of the slip assist unit 300 cannot be completely filled, and only a part of the communication space can be maintained.

[0038] Next, referring to FIG. 9, another modified embodiment of the drug injection module according to the present invention will be described as follows. As shown in the drawings, the slip assist unit 300 is not a simple protrusion type, but is formed in a certain pattern on a part of the outer surface of the cylinder 100 or on the entire surface of the cylinder 100 such that a plurality of protrusions are in contact with each other.

[0039] Specifically, the slip assist unit 300 is formed on the outer surface of the cylinder 100 in a specific pattern by forming a plurality of curved protrusions that are arranged to contact each other as shown. Here, the slip assist unit 300 has grooves separating each protrusion on the outer surface of the cylinder 100, so that when the cylinder 100 is inserted, the part that comes into contact with the user's body S does not only come into contact in an uneven manner, but also the grooves can form a communication space that connects the inside and outside of the body S.

[0040] Of course, unlike the illustration, the slip assist unit 300 may be formed only on a part of the surface of the cylinder rather than on the entire surface, and the protruding protrusions may be formed to have non-uniform patterns, shapes, sizes, heights, etc. Thus, various embodiments of the drug injection module according to the present invention have been seen. The module includes the cylinder 100, the piston 200 and the slip assist unit 300. The slip assist unit 300 has the advantage that it easily generates slippage by contacting the cylinder 100 with uneven pressure when the cylinder 100 is inserted into the human body S.

[0041] As described above, specific embodiments of the present invention have been described and illustrated, but the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations must be individually understood from the technical spirit and perspective of the present invention, and the modified embodiments can be said to belong to the scope of the claims of the present invention. [Explanation of symbols]

[0042] 100: Cylinder 200: Piston 300, 400: Slip auxiliary unit 310:Protrusion 320: Wings

Claims

1. a cylinder formed long and having a storage space for storing a drug therein, an outlet formed at a front end for discharging the drug, and an open rear end; a piston that is inserted into the receiving space through a rear end of the cylinder and slides longitudinally to discharge the drug; and a slip assist unit that is formed at least partially on the outer surface of the cylinder as a protrusion or a recess, thereby forming a non-uniform cross-sectional shape around the cylinder and generating a deviation in pressure acting on the surface when the cylinder comes into contact with the user's body; At least one of the slip assist units is formed to protrude along the outer surface of the cylinder, or at least one of the slip assist units is formed to be recessed along the outer surface of the cylinder, and is formed to be long with a certain length along the longitudinal direction of the cylinder, and a communication space that communicates with the inside and outside of the cylinder may be formed at least partially between the outer surface of the cylinder and the user's body, The slip assist unit is formed by protruding at least one unit along the outer surface of the cylinder. a protrusion protruding from an outer surface of the cylinder; and a wing portion that is partially expanded at a protruding end of the protrusion to have a width relatively larger than that of the protrusion and forms the communication space between the cylinder and the wing portion; The slip assistance unit is a drug injection module that prevents the pressure of the human body acting around the cylinder from becoming uniform when the cylinder is inserted into the human body, thereby facilitating slippage.

2. The wing portion of the slip auxiliary unit, which is formed with at least one protruding portion along the outer surface of the cylinder, The drug injection module according to claim 1, wherein the module is curved downward toward the cylinder as it approaches the edge along the circumference and is spaced apart so as to contact the surface of the cylinder.

3. The slip assist unit is formed with at least one recess along the outer surface of the cylinder, 2. The drug injection module of claim 1, wherein the cylinder has a width inwardly extending from the surface of the cylinder that is relatively large.

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