Applicator for inserting injection tube of drug injection device into subject and drug injection system comprising same

Abstract

The present invention proposes an applicator coupled to a patch-type drug injection device to insert an injection tube of the patch-type drug injection device into a subject. The applicator according to an embodiment of the present invention comprises a main body unit for accommodating the drug injection device and a pressing unit for inserting an injection tube of the drug injection device into the subject, wherein the main body unit includes: a cover portion formed to cover the upper surface and the side surfaces of the drug injection device to be accommodated; an opening which exposes, toward the subject, the lower surface of the drug injection device in contact with the subject; and an accommodation space which is formed between the cover portion and the opening and in which the drug injection device is arranged.

Description

An applicator for inserting an injection tube of a drug injection device into a subject and a drug injection system including the same

[0001] The present invention relates to an applicator for inserting an injection tube of a drug injection device into a subject and a drug injection system including the same.

[0002] Depending on the type, purpose, and method of treatment, medications can be administered orally, subcutaneously, or intravenously. Drug infusion devices utilizing drug pumps can automatically inject medication into the body at the desired rate and dose at the required time. Therefore, drug infusion devices utilizing drug pumps can be utilized in a variety of ways, not just in hospitals or patients' daily lives.

[0003] An insulin pump, commonly called an insulin injector, is a medical device that acts like a pancreas to control blood sugar levels by supplying insulin from outside the body at a set time precisely for diabetic patients who do not secrete insulin or secrete only a small amount.

[0004] These insulin pumps are used by patients with insulin-dependent diabetes, and can deliver medication continuously 24 hours a day while attached to the patient. Because insulin injectors require patients to administer medication periodically over long periods of time, active technology development is underway to miniaturize and automate insulin injectors for greater user convenience.

[0005] In addition, since insulin injectors are generally attached to the user's body for a specified period of use, miniaturization and lightweighting are essential.

[0006] In the case of conventionally known insulin injectors, a form has been disclosed in which the mechanism for inserting the needle into the skin is built into the insulin injector, but this has the problem of making the insulin injector larger and heavier.

[0007] [Prior Art Literature]

[0008] [Patent Document]

[0009] Republic of Korea Patent Publication No. 10-2022-0150269 (Title of invention: Needle assembly and drug injection device including the same)

[0010] The present invention provides an applicator for inserting an injection tube of a patch-type drug injection device into a subject and a drug injection system including the same.

[0011] However, the technical tasks that this embodiment seeks to accomplish are not limited to the technical tasks described above, and other technical tasks may exist.

[0012] As a technical means for achieving the above-described technical task, an applicator for inserting an injection tube of a patch-type drug injection device according to one embodiment of the present invention into a subject includes a main body for accommodating the drug injection device and a pressurizing portion for inserting the injection tube of the drug injection device toward the subject, wherein the main body includes a cover portion formed to cover an upper surface and a side surface of the drug injection device to be accommodated; an opening portion for exposing a lower surface of the drug injection device in contact with the subject toward the subject; and an accommodation space formed between the cover portion and the opening portion and in which the drug injection device is placed.

[0013] A drug injection system according to another embodiment of the present invention includes a patch-type drug injection device including an injection tube for delivering a drug to an injection target, and an applicator that holds the patch-type drug injection device in a receiving space and inserts the injection tube into the target by an external force.

[0014] According to an embodiment of the present invention, the drug injection device can be made smaller and lighter by inserting the injection tube of the patch-type drug injection device into a subject using an applicator.

[0015] FIG. 1 is an exploded perspective view of a drug injection system according to one embodiment of the present invention.

[0016] Figure 2 is a cross-sectional view taken along line A-A' of Figure 1.

[0017] Figure 3 is a cross-sectional view taken along line B-B' of Figure 1.

[0018] Figure 4 is an enlarged view of A in Figure 2.

[0019] Figure 5 is an exploded perspective view of an applicator according to one embodiment of the present invention.

[0020] Figure 6 is a cross-sectional view taken along line A-A' of Figure 5.

[0021] Figure 7 is a cross-sectional view taken along line B-B' of Figure 5.

[0022] Figure 8 is an enlarged view of C in Figure 5.

[0023] Figure 9 is a bottom view of a safety cover according to one embodiment of the present invention.

[0024] Figures 10 to 15 are drawings for explaining the operation of a drug injection system according to one embodiment of the present invention.

[0025] Below, with reference to the attached drawings, embodiments of the present invention are described in detail so that those skilled in the art can easily implement them. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar reference numerals have been used throughout the specification to indicate similar elements.

[0026] Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected" but also the case where it is "electrically connected" with another element in between. Furthermore, when a part is said to "include" a component, this should be understood to mean that, unless specifically stated to the contrary, it may include other components rather than excluding them, and does not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0027] The present invention relates to an applicator (200) for inserting an injection tube (130) of a patch-type drug injection device (100) into a subject and a drug injection system (10) including the same.

[0028] FIG. 1 is an exploded perspective view of a drug injection system (10) according to one embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line A-A' of FIG. 1, FIG. 3 is a cross-sectional view taken along line B-B' of FIG. 1, FIG. 4 is an enlarged view of line A of FIG. 2, FIG. 5 is an exploded perspective view of an applicator (200) according to one embodiment of the present invention, FIG. 6 is a cross-sectional view taken along line A-A' of FIG. 5, FIG. 7 is a cross-sectional view taken along line B-B' of FIG. 5, FIG. 8 is an enlarged view of line C of FIG. 5, FIG. 9 is a bottom view of a safety cover (600) according to one embodiment of the present invention, and FIGS. 10 to 15 are drawings for explaining the operation of a drug injection system (10) according to one embodiment of the present invention.

[0029] Hereinafter, a drug injection system (10) according to one embodiment of the present invention will be described with reference to FIGS. 1 to 6.

[0030] Referring to FIGS. 1 and 6, the drug injection system (10) includes a patch-type drug injection device (100) including an injection tube (130) for delivering a drug to a subject to be injected, and an applicator (200) that holds the patch-type drug injection device (100) in a receiving space (320) and inserts the injection tube (130) into the subject by an external force.

[0031] Referring to FIGS. 2 and 3, the drug injection device (100) may include a housing (110), a pump assembly (120), an injection tube (130), a guide portion (140), and a control portion (150). In addition, the drug injection device (100) may further include an adhesive member (160) attached to the lower surface.

[0032] The housing (110) may include an upper surface, a side surface, and a lower surface. For example, as illustrated in FIG. 1, the housing (110) may be formed in a rectangular parallelepiped shape with curved corners.

[0033] The pump assembly (120) can be built into the housing (110). The drug stored in the drug storage unit can be supplied to the injection tube (130) by the pump assembly (120) and delivered to the subject.

[0034] The injection tube (130) can deliver a drug to a subject to be injected. Referring to FIGS. 4 and 5, the injection tube (130) can include a needle mover (131) that contacts the pressurizing portion (400) of the applicator (200) and includes an extension portion (1131) formed to extend horizontally at an end thereof, and a needle (132) that is supported by the needle mover (131) and ejects a drug. In addition, the needle (132) can include a first region that extends in the depth direction and a second region that connects the first region and the pump assembly (120). In other words, the first region of the needle (132) can be inserted into a subject, and the second region of the needle (132) can be connected to the pump assembly (120) to supply a drug from a drug storage unit.

[0035] The guide portion (140) can guide the injection tube (130) to move along the depth direction. Specifically, the guide portion (140) can include at least one wall (141) extending along the depth direction and a locking portion (142) formed at an end of the wall (141).

[0036] The control unit (150) controls various operations of the drug injection device (100), and applies a control signal for driving the pump assembly (120) according to the drug injection mode. In addition, it enables communication with an external computing device or user terminal through a communication module.

[0037] The adhesive member (160) is attached to the lower surface of the drug injection device (100) and is used to adhere to the surface of the subject when the drug injection device (100) is used. For example, it serves to fix the drug injection device (100) to the surface of the user's skin, etc., for insulin injection. The adhesive member (160) may be referred to in the form of an adhesive sheet or an adhesive pad. A release liner is attached to the surface of the adhesive member (160), and an adhesive material for attachment to the skin is applied to the back surface of the release liner. After the release liner is separated, the adhesive member (160) is attached to the skin, etc. The adhesive member (160) is formed in a form that extends a predetermined length (e.g., 0.5 cm to 1.5 cm) from the end of the lower surface of the drug injection device (100), thereby improving the stability of attachment. The adhesive material is applied to the extended area as well as the lower area of ​​the housing (110) to ensure good attachment to the skin, etc. Meanwhile, in the present invention, the adhesive member (160) is supported by the edge portion (340) of the applicator (200) to be described later, thereby making it easier to attach the adhesive member (160) to the object.

[0038] As the user presses the pressurizing portion (400) of the applicator (200), the needle mover (131) moves in the depth direction (6 o'clock direction in FIG. 4) along the guide portion (140), and the extension portion (1131) of the needle mover (131) can be fixed by the locking portion (142). At this time, the lower circumference of the extension (1131) of the needle mover (131) and the upper inner circumference of the locking portion (142) are formed to be tapered, so that as the needle mover (131) moves in the depth direction, the extension (1131) applies force to the locking portion (142) to move outward, and when the extension (1131) passes through the locking portion (142), the locking portion (142) moves inward again to the original position, so that the injection tube (130) does not move upward and can be fixed in a state where the needle (132) is inserted into the object.

[0039] Referring back to FIG. 3, the pump assembly (120) can discharge the drug from the drug storage unit to the injection target through the injection tube (130). For example, the pump assembly (120) can supply the drug from the drug storage unit to the injection target through the injection tube (130) at preset intervals, thereby supplying the drug to the target through the injection tube (130). An electroosmotic pump or the like can be used as the pump assembly (120), but is not limited thereto. At this time, the pump assembly (120) can control the supply time and amount of the drug by the control unit (150).

[0040] Hereinafter, an applicator (200) according to one embodiment of the present invention will be described with reference to FIGS. 5 to 8.

[0041] As described above, the applicator (200) is a device coupled to a patch-type drug injection device (100) and used to insert the injection tube (130) of the patch-type drug injection device (100) into a subject.

[0042] Referring to FIG. 5, the applicator (200) includes a main body (300) that accommodates a drug injection device (100) and a pressurizing portion (400) that inserts the injection tube (130) of the drug injection device (100) toward the target object.

[0043] In addition, referring to FIG. 6, the main body (300) includes a cover portion (310) formed to cover the upper surface and side surfaces of the drug injection device (100) to be received, an opening portion (330) that exposes the lower surface of the drug injection device (100) that contacts the object toward the object, and a receiving space (320) formed between the cover portion (310) and the opening portion (330) and in which the drug injection device (100) is placed.

[0044] The cover part (310) may be formed along the outer shape of the upper surface and the side surface of the drug injection device (100). In addition, the receiving space (320) may be formed along the outer shape of the upper surface and the side surface of the drug injection device (100). Accordingly, the side surface of the drug injection device (100) is in close contact with the inner side of the receiving space (320), so that not only is the drug injection device (100) firmly fixed to the inner side of the applicator (200), but also the injection tube (130) and the pressurizing part (400) can be maintained in a state of being aligned with each other.

[0045] The applicator (200) may further include a border portion (340) that is formed to extend outward along the periphery of the cover portion (310) so as to be aligned on the same plane as the lower surface of the drug injection device (100). In addition, the cover portion (310) and the border portion (340) are formed integrally, and the cover portion (310) and the border portion (340) may be connected by being rounded at a predetermined curvature. Meanwhile, as described above, the border portion (340) is formed to support the adhesive member (160), thereby enabling the adhesive member (160) to be attached more conveniently. If the adhesive member (160) is not supported by the border portion (340) or the like, the adhesive member (160) from which the release paper is separated is very flexible, and thus it is highly likely that it will not be attached in an unfolded state to the skin or the like, but rather in a folded state. In order to prevent this, in the present invention, the area of ​​the adhesive member (160) extended from the housing (110) and the area of ​​the edge portion (340) are generally corresponding to each other so that the adhesive member (160) is supported by the edge portion (340). That is, the area of ​​the edge portion (340) may be configured to be the same as the extended area of ​​the adhesive member (160), slightly smaller than the extended area, or slightly larger than the extended area.

[0046] Referring to FIG. 6, the cover part (310) can be spaced apart from the upper surface of the drug injection device (100) to be received by a set interval. Specifically, the main body part (300) has a shape in which the receiving space (320) is sunken in the depth direction by a first length (d1), and may further include at least one rib member (350) that protrudes from the inner surface of the cover part (310) in the depth direction by a second length (d2) shorter than the first length (d1). At this time, the depth at which the drug injection device (100) is inserted into the receiving space (320) can be limited by the rib member (350).

[0047] A set gap between the cover part (310) and the upper surface of the drug injection device (100) can be determined by the second length (d2) of the rib member (350). At this time, the set gap can be determined based on the required movement distance of the pressure part (400) required for insertion of the injection tube (130). In other words, the set gap can be determined based on the required depth at which the injection tube (130), preferably the needle (132) of the injection tube (130), must be inserted into the subject. For example, the set gap can be within a range of 3 mm to 7 mm, but is not limited thereto.

[0048] Referring to FIGS. 7 and 8, the pressurizing portion (400) may include an insertion button (410) formed in at least a portion of the cover portion (310) and an external force transmitting portion (420) positioned between the insertion button (410) and the injection tube (130). In addition, an external force applied to the insertion button (410) may be transmitted to the injection tube (130) through the external force transmitting portion (420), thereby allowing insertion of the injection tube (130).

[0049] Referring to Fig. 8, the insertion button (410) includes a pressing plate (411) in which a pressing area is formed, and an elastic support member (412) connecting the pressing plate (411) and the cover member (310). Meanwhile, the applicator (200) is manufactured as an integral body by injection molding, and may be made of a material such as polyethylene to have elasticity. Accordingly, the elastic support member (412) has elasticity and guides the pressing plate (411) to move in the depth direction when an external force is applied, and when the external force is released, the pressing plate (411) can be returned to its original position by the elasticity of the elastic support member (412).

[0050] The elastic support member (412) may include a first support member (1412) formed along the outer surface of the pressing plate (411) to have a predetermined length and connecting a first point of the pressing plate (411) and a first point of the cover member (310), and a second support member (2412) formed along the outer surface of the pressing plate (411) to have a predetermined length and connecting a second point of the pressing plate (411) and a second point of the cover member (310). At this time, the first point and the second point of the pressing plate (411) may be positioned in opposite directions, and the first point and the second point of the cover member (310) may be positioned in opposite directions. For example, as illustrated in FIG. 8, the pressing plate (411) may be circular, and the first support portion (1412) and the second support portion (2412) may be arc-shaped to surround the insertion button (410) by a predetermined length. In this way, the first support portion (1412) and the second support portion (2412) may be arranged in a structure symmetrical to each other, thereby guiding the pressing plate (411) to move in the depth direction.

[0051] Referring to Fig. 7, the external force transmitting unit (420) is formed to protrude from the lower portion of the insertion button (410) and can extend within the receiving space toward the upper surface of the drug injection device (100) to be received. Specifically, the external force transmitting unit (420) is formed in the shape of a protruding pin, and when an external force is applied to the pressing unit (400), the protruding pin can enter the inside of the drug injection device (100) and push the injection tube (130) toward the object.

[0052] Referring again to FIG. 5, the applicator (200) may further include a safety cover (600) coupled to the main body (300) to cover the pressurizing portion (400). Specifically, referring to FIG. 9, the safety cover (600) may include a cover plate (610) covering the pressurizing portion (400), a handle portion (620) coupled to the cover plate (610), and a fastening pin (630) formed on the lower surface of the cover plate (610) to fasten or release the pressurizing portion (400). For example, the cover plate (610) is formed to be of a sufficient size to cover the entirety of the pressurizing portion (400), and two fastening pins (630) are formed to protrude in an 'L' shape on the lower surface of the cover plate (610), so that the two fastening pins (630) are respectively coupled to the first support portion (1412) and the second support portion (2412), so that the pressurizing portion (400) can be protected from being pressed by an external force by the safety cover (600). In addition, when releasing the safety cover (600), the handle portion (620) is rotated clockwise or counterclockwise to detach the fastening pins (630) from the first support portion (1412) and the second support portion (2412), and then the safety cover (600) can be removed.

[0053] Referring again to FIGS. 5 to 7, the applicator (200) is positioned on the side surface of the cover portion (310) and may include a fastening portion (500) that can secure or release the drug injection device (100) to the applicator (200).

[0054] The fastening part (500) may include a first fastening pin (510) arranged on a first side surface of the cover part (310) and a second fastening pin (520) arranged on a second side surface facing the first side surface.

[0055] The first fastening pin (510) extends along the depth direction of the main body, and a first hook (511) is coupled to one end thereof, and can be pivotally coupled so that one area is elastically supported on the first side surface. For example, the first fastening pin (510) may be formed in a rectangular parallelepiped plate shape, and the lower portion may be bent to form the first hook (511). In addition, the first fastening pin (510) may be formed with a connecting portion (512) connected to the first side surface of the main body on both sides, and may be elastically supported by the connecting portion (512) and may be rotated at a predetermined angle around the connecting portion (512). In other words, when a user presses the upper portion of the first fastening pin (510) inward, the first hook (511) located at the lower portion may be detached from the fastening groove (112) of the patch-type drug injection device (100).

[0056] The second fastening pin (520) extends along the depth direction of the main body, and a second hook (521) is coupled to one end thereof, and can be pivotally coupled so that one area is elastically supported on the second side surface. For example, the second fastening pin (520) may be formed in a rectangular parallelepiped plate shape, and the lower portion may be bent to form the second hook (521). In addition, the second fastening pin (520) may have connecting portions formed on both sides thereof that are connected to the second side surface of the main body, may be elastically supported by the connecting portions, and may be rotated at a predetermined angle around the connecting portions. In other words, when a user presses the upper portion of the second fastening pin (520) inward, the second hook (521) located at the lower portion may be detached from the fastening groove (112) of the patch-type drug injection device (100).

[0057] In other words, as the other end of the first fastening pin (510) and the other end of the second fastening pin (520) are pressed toward the pressurizing portion (400) of the main body by an external force, the first hook (511) of the first fastening pin (510) and the second hook (521) of the second fastening pin (520) move outward toward the edge portion (340) of the main body portion (300), and when the external force is released, the first hook (511) of the first fastening pin (510) and the second hook (521) of the second fastening pin (520) can return to their original positions.

[0058] Hereinafter, with reference to FIGS. 10 to 15, the operation of a drug injection system (10) according to one embodiment of the present invention will be described.

[0059] The patch-type drug injection device (100) is attached to the skin while the applicator (200) and the patch-type drug injection device (100) are combined. At this time, the first hook (511) of the first fastening pin (510) and the second hook (521) of the second fastening pin (520) are inserted into the fastening groove (112) of the housing (110), so that the applicator (200) can be fixed to the patch-type drug injection device (100).

[0060] Next, referring to FIG. 10, the safety cover (600) can be removed by holding the handle (620) of the safety cover (600) and rotating it clockwise or counterclockwise to detach the fastening pin (630) of the safety cover (600) from the first support (1412) and the second support (2412).

[0061] Next, referring to FIGS. 11 and 12, when an external force is applied to the pressing plate (411) and the pressing plate (411) moves in the depth direction, the external force transmission unit (420) presses the injection tube (130), and the injection tube (130) can move in the depth direction. At this time, the needle (132) of the injection tube (130) can be inserted into the object, and the injection tube (130) can be fixed with the needle (132) inserted into the object by the locking unit (142).

[0062] Next, referring to Fig. 13, an external force is released from the pressing plate (411), and at this time, the pressing plate (411) can be returned to its original position by the elasticity of the elastic support (412).

[0063] Next, referring to FIGS. 14 and 15, the other end of the first fastening pin (510) and the other end of the second fastening pin (520) can be pressed toward the pressing portion (400) of the main body (300). At this time, the first hook (511) of the first fastening pin (510) and the second hook (521) of the second fastening pin (520) are moved outward toward the edge portion (340) of the main body (300), thereby being detached from the fastening groove (112), and the applicator (200) can be released from the patch-type drug injection device (100). Accordingly, as shown in FIG. 15, the needle (132) of the patch-type drug injection device (100) is inserted into the skin, and drug injection can be performed while the patch-type drug injection device (100) is attached to the skin.

[0064] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single entity may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined manner.

[0065] The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0066] [Explanation of symbols]

[0067] 10: Drug injection system

[0068] 100: Drug injection device

[0069] 110: Housing 112: Fastening groove

[0070] 120: Pump assembly

[0071] 130: Injection tube 131: Needle mover

[0072] 1131: Extension

[0073] 132: Needle

[0074] 140: Guide Department

[0075] 141: Wall 142: Locking part

[0076] 150: Control unit 160: Adhesive member

[0077] 200: Applicator

[0078] 300: Main body

[0079] 310: Cover 320: Receiving space

[0080] 330: opening 340: border

[0081] 350: Rib member

[0082] 400: Pressurized section

[0083] 410: Insert button

[0084] 411: Pressing plate 412: Elastic support

[0085] 1412: First support 2412: Second support

[0086] 420: External force transmission unit

[0087] 500: Fastening part

[0088] 510: First fastening pin 511: First hook

[0089] 512: Connection

[0090] 520: Second fastening pin 512: Second hook

[0091] 600: Safety cover

[0092] 610: Cover plate 620: Handle

[0093] 630: Fastening pin

[0094] d1: first length d2: second length

Claims

1. In an applicator combined with a patch-type drug injection device for inserting the injection tube of the patch-type drug injection device into a subject, A main body that accommodates the above drug injection device and Including a pressurizing part for inserting the injection tube of the above drug injection device into the target side, The above main body part, A cover formed to cover the upper surface and side surface of the drug injection device to be received; An opening exposing the lower surface of the drug injection device in contact with the object toward the object; and An applicator comprising a receiving space formed between the cover portion and the opening portion and in which the drug injection device is placed.

2. In paragraph 1, An applicator wherein the cover portion is formed along the outer shape of the upper surface and the side surface of the drug injection device.

3. In paragraph 1, An applicator wherein the above-mentioned receiving space is formed along the outer shape of the upper surface and the side surface of the drug injection device.

4. In paragraph 1, An applicator further comprising a border portion formed to extend outward along the periphery of the cover portion so as to be aligned on the same plane as the lower surface of the drug injection device.

5. In paragraph 4, An applicator wherein the cover portion and the frame portion are formed integrally, and the cover portion and the frame portion are connected by being rounded at a predetermined curvature.

6. In paragraph 4, An applicator wherein the above-mentioned border portion is formed to support an extended area of ​​an adhesive member coupled to a lower surface of the drug injection device.

7. In paragraph 1, An applicator wherein the cover portion is spaced apart from the upper surface of the drug injection device to be received by a set interval.

8. In paragraph 7, The above main body part, The above-mentioned accommodation space has a shape sunken by a first length in the depth direction, Further comprising at least one rib member protruding from the inner surface of the cover portion in the depth direction by a second length shorter than the first length, An applicator wherein the depth at which the drug injection device is inserted into the receiving space is limited by the rib member.

9. In paragraph 8, An applicator wherein the set gap between the cover portion and the upper surface of the drug injection device is determined by the second length of the rib member.

10. In paragraph 7, An applicator wherein the above-described set interval is determined based on the required movement distance of the pressurized portion required for insertion of the injection tube.

11. In paragraph 7, An applicator wherein the above-described set interval is determined based on the required depth at which the injection tube must be inserted into the target object.

12. In paragraph 10 or 11, An applicator wherein the above set interval is within the range of 3 mm to 7 mm.

13. In paragraph 1, The above pressurized part, An insertion button formed in at least a portion of the above cover portion and An applicator comprising an external force transmitting unit disposed between the insertion button and the injection tube.

14. In paragraph 13, An applicator in which an external force applied to the above insertion button is transmitted to the injection tube through the external force transmission unit, thereby inserting the injection tube.

15. In paragraph 13, The above insert button is, A pressing plate in which a pressing area is formed, and Including an elastic support connecting the cover part and the pressing plate, An applicator wherein the elastic support member guides the pressing plate to move in the depth direction when an external force is applied, and returns the pressing plate to its original position when the external force is released.

16. In paragraph 15, The above elastic support A first support portion formed to have a predetermined length along the outer surface of the pressing plate and connecting a first point of the pressing plate and a first point of the cover portion; and A second support portion is formed to have a predetermined length along the outer surface of the pressing plate and connects a second point of the pressing plate and a second point of the cover portion, The first and second points of the above pressing plate are located in opposite directions, An applicator wherein the first and second points of the above cover portion are positioned in opposite directions.

17. In paragraph 16, The above pressing plate is circular, An applicator wherein the first support portion and the second support portion have an arc shape that surrounds the insertion button by a predetermined length.

18. In paragraph 13, An applicator wherein the external force transmitting portion is formed to protrude from the lower portion of the insertion button and extends within the receiving space toward the upper surface of the drug injection device to be received.

19. In paragraph 18, An applicator wherein the external force transmitting portion is formed in a protruding pin shape, and when an external force is applied to the pressing portion, the protruding pin enters the inside of the drug injection device and pushes the injection tube toward the object.

20. In paragraph 1, An applicator further comprising a safety cover coupled to the main body to cover the pressurized portion.

21. In paragraph 20, The above safety cover, A cover plate covering the above pressurized portion; A handle part coupled to the above cover plate and An applicator comprising a fastening pin formed on the lower surface of the cover plate and fastened or released from the pressurized portion.

22. In paragraph 1, An applicator comprising a fastening portion arranged on a side surface of the cover portion and capable of fixing or releasing the drug injection device with respect to the applicator.

23. In paragraph 22, The above fastening part is, A first fastening pin arranged on the first side surface of the cover portion, extending along the depth direction of the main body portion, having a first hook coupled to one end thereof, and pivotally coupled such that one area is elastically supported on the first side surface; and An applicator comprising a second fastening pin arranged on a second side surface facing the first side surface, extending along the depth direction of the main body, having a second hook coupled to one end thereof, and pivotally coupled such that one area is elastically supported on the second side surface.

24. In paragraph 23, As the other end of the first fastening pin and the other end of the second fastening pin are pressed toward the pressing portion of the main body by an external force, the first hook of the first fastening pin and the second hook of the second fastening pin move outward toward the edge portion of the main body, An applicator wherein, upon release of the external force, the first hook of the first fastening pin and the second hook of the second fastening pin return to their original positions.

25. In the drug injection system, A patch-type drug delivery device including an injection tube for delivering a drug to a target for injection, and A drug injection system comprising an applicator according to any one of claims 1 to 24, which holds the patch-type drug injection device in a receiving space and inserts the injection tube into a subject by an external force.

26. In paragraph 25, The above drug injection device A housing comprising an upper surface, a side surface and a lower surface; A drug storage unit built into the housing; The injection tube for delivering the drug to the injection target; A guide part that guides the injection tube to move along the depth direction; and A drug injection system comprising a pump assembly that discharges the drug from the drug storage unit to the injection target side through the injection tube.

27. In paragraph 26, The guide portion includes at least one wall extending along the depth direction and a locking portion formed at an end of the wall, The injection tube is in contact with the pressurized portion and includes a needle mover including an extension formed to extend horizontally at its end, and A needle supported by the above needle mover and including a needle for discharging the drug, A drug injection system, wherein the needle mover moves in the depth direction along the guide part by the pressurizing part, and the extension part of the needle mover is fixed by the locking part.

28. In paragraph 27, A drug injection system, wherein the needle comprises a first region extending along the depth direction and a second region connecting the first region and the pump assembly.

Images