Insertion device for analyte monitoring device

Abstract

According to one embodiment of the present invention, there is provided an applicator comprising: a hollow cylindrical housing having an opening formed on one surface thereof; the first button is arranged on the upper surface of the shell; a second button disposed on an outer peripheral surface of the housing; a needle carrier configured to be coupled to the second button and perform linear movement between a distal end portion and a proximal end portion within the housing; and a driving portion configured to be coupled to the first button and to power linear movement of the needle carrier.

Description

Technical Field

[0001] The present invention relates to insertion devices for analyte monitoring devices, and more particularly, to detailed structures of insertion devices for devices for monitoring body analytes. Background Art

[0002] The content described in this section merely provides background information about the present disclosure and does not constitute prior art.

[0003] Recently, as people's preference for processed foods has increased, people have easy access to simple sugars. Due to this environment, diabetes is also increasing. When blood sugar levels drop rapidly or rise rapidly, diabetic patients may go into shock, and in rare cases, may even cause death. Therefore, diabetic patients need to monitor their blood sugar levels continuously.

[0004] In a blood sugar measuring device according to the prior art, an incision is made at the end of a finger using a lancet, and the blood of a diabetic patient flowing through the incision is input into a blood sugar analyzing device, thereby calculating their blood sugar level.

[0005] Such blood sugar measuring devices can cause pain and fear to the user. In addition, it is actually difficult for the patient to cut his finger every hour and make it bleed.

[0006] To solve this problem, a continuous glucose monitoring (CGM) system has been developed. When a sensor having a fine thickness and an electronic device (hereinafter referred to as a "transmitter") for analyzing an analyte measured by the sensor (hereinafter referred to as "blood glucose") is attached to the skin of a diabetic patient, the blood glucose level is continuously measured for one week to ten days.

[0007] The sensor of the transmitter is so thin that it is difficult to penetrate the skin directly. Therefore, a construction (hereinafter referred to as an "applicator") is required in which a needle is inserted into the skin, the sensor is inserted into the gap, and then the needle is withdrawn.

[0008] It is very important to provide a gentle feel when using the applicator.

[0009] Meanwhile, according to US2021-0038131 A1 document, the sensor introducer 106 should be inserted into the sensor inserter 500. In this case, the sensor introducer needs to be inserted into the sensor inserter by adjusting the direction of the sensor introducer, and there is a great risk that the user will feel tired during this process. Therefore, it is desirable to be able to operate the applicator simply.

[0010] Furthermore, since the needle is inserted directly into the user's skin, the applicator is required to be used only once for hygiene purposes. Since the high manufacturing cost of disposable products may impose a financial burden on the user, it is desirable to reduce the manufacturing cost as much as possible.

[0011] Furthermore, since the needle is inserted directly into the user's skin, preventing reuse is very important. Therefore, it is desirable to provide an applicator having a structure that structurally prevents reuse.

[0012] Furthermore, when using an applicator, it is desirable to perform the needle insertion and removal operations as quickly as possible in order to minimize pain.

[0013] Furthermore, since there is a risk that some users do not read the user manual carefully, it is desirable to intuitively recognize the method of use.

[0014] In addition, when the assembled applicator is disassembled due to external impact, the user will not be able to use the normal transmitter. Therefore, it is desirable to keep the applicator firmly even if there is an external impact.

[0015] Furthermore, it is desirable to provide an applicator that can stably fix and support a transmitter within the applicator and prevent the transmitter from falling off even in the event of an external impact.

[0016] Furthermore, it is desirable to provide a configuration for preventing accidental triggering regardless of the user's intention. Summary of the invention

[0017] Technical issues

[0018] Therefore, the present disclosure provides an applicator with a safety device to prevent the applicator from being triggered by external impact.

[0019] Furthermore, the present disclosure provides an applicator to which a transmitter can be stably fixed even in the event of an external impact.

[0020] Problems to be solved by the present invention are not limited to the above-mentioned problems, and other unmentioned problems will be clearly understood by those skilled in the art through the following description.

[0021] Technical Solution

[0022] According to an embodiment of the present invention, an applicator is provided, comprising: a hollow cylindrical shell having an opening formed at a bottom thereof; a first button disposed on an upper surface of the shell; a second button disposed on an outer peripheral surface of the shell; a needle carrier configured to be fastened to the second button and to perform linear motion between a distal position and a proximal position within the shell; and a drive portion configured to be fastened to the first button and to provide power for the linear motion of the needle carrier.

[0023] In addition, preferably, the driving portion may include: a wound spring in a compressed state, which is coupled to the inner circumferential surface of the shell; a wheel, which has a surface facing the spring and is constrained by the rotation of the spring; an arc-shaped anti-trigger portion, which protrudes from the other surface of the wheel and is formed along the circumference of the wheel; and a guide protrusion, which protrudes from the other surface of the wheel and is arranged radially inward from the anti-trigger portion; wherein the needle carrier includes: a transverse guide; and a longitudinal guide, which is formed by one surface of the transverse guide and extends along the length direction of the shell.

[0024] In addition, preferably, the first button may include: an extension portion, which protrudes from the lower surface of the first button; and an engagement protrusion, which protrudes from a surface of the extension portion toward the radial outside of the first button and is configured to face the anti-trigger portion, and the engagement protrusion can be spaced apart from the lower surface of the first button, and when the first button is pressed, the anti-trigger portion can be arranged in the spacing space between the engagement protrusion and the lower surface of the first button.

[0025] In addition, preferably, the needle carrier may include a hook-shaped protrusion protruding from the lateral surface of the longitudinal guide, the second button may include an extension protruding from the lower surface of the second button and arranged toward the radial inside of the shell, and a hook protruding from one surface of the extension toward the radial inside of the second button and configured to face the hook-shaped protrusion, the hook may be spaced apart from the lower surface of the second button, and when the second button is pressed, the hook-shaped protrusion may be arranged in the interval space between the hook and the bottom surface of the second button.

[0026] In addition, preferably, the first button can be configured to limit the rotation of the driving part, the second button can be configured to limit the linear movement of the needle carrier, and when the first button and the second button are pressed simultaneously or sequentially, the driving part can rotate so that the needle carrier moves from the distal position to the proximal position.

[0027] In addition, preferably, the applicator may further include a launcher holder, which is pressed by the needle carrier, moved from the distal position to the proximal position, and is configured to hold the launcher; wherein the launcher holder includes: a launcher support portion, which is configured to surround at least a portion of the launcher; and a pusher, which is rotatably mounted on the upper surface of the launcher holder.

[0028] Furthermore, preferably, one end of the pusher may be disposed outside the launcher holder, the other end of the pusher may be disposed inside the launcher holder, and one end of the pusher may protrude from a lower surface of the launcher holder.

[0029] Furthermore, preferably, when the launcher holder is moved from the distal position to the proximal position by the needle carrier, one end of the pusher may contact the inner bottom of the housing and the other end of the pusher may press the upper surface of the launcher.

[0030] Furthermore, preferably, the transmitter support and the transmitter may be frictionally coupled to each other.

[0031] In addition, according to another embodiment of the present disclosure, a sensor insertion device is provided, which includes: a sensor, at least a portion of which is inserted into the body and configured to detect body analytes; a transmitter, which is configured to process information related to the body analyte obtained from the sensor; and an applicator, which is configured to move the sensor and the transmitter from a proximal position to a distal position.

[0032] The applicator includes: a hollow cylindrical shell with an opening formed at the bottom; a first button arranged on the upper surface of the shell; a second button arranged on the outer peripheral surface of the shell; a needle carrier configured to be fastened to the second button and to perform linear motion between a distal position and a proximal position in the shell; and a driving part configured to be fastened to the first button and to provide power for the linear motion of the needle carrier.

[0033] Technical Effects

[0034] As described above, according to the present embodiment, since the applicator is triggered only when both the first button and the second button are pressed, it is possible to prevent the applicator from being triggered by an accident such as an external impact.

[0035] Furthermore, the first button and the second button can be pressed in either order, which makes the device user-friendly and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 1A and 1B are perspective views of an applicator according to a first embodiment of the present disclosure;

[0037] Figure 2 is an exploded perspective view of an applicator according to a first embodiment of the present disclosure;

[0038] FIG3A is a cross-sectional view taken along line II' of FIG1A;

[0039] FIG3B is a cross-sectional view taken along line II-II' of FIG1A;

[0040] Figure 4 illustrates the operation of the applicator according to the first embodiment of the present disclosure;

[0041] 5A and 5B provide perspective views of an applicator according to a second embodiment of the present disclosure;

[0042] Figure 6 is an exploded perspective view of an applicator according to a second embodiment of the present disclosure;

[0043] Figure 7 5B is a cross-sectional view taken along line II';

[0044] Figure 8 illustrates the operation of the applicator according to the second embodiment of the present disclosure;

[0045] FIG9A is a cross-sectional view taken along line II-II' of FIG5B;

[0046] FIG9B is a cross-sectional view taken along line III-III' of FIG5B;

[0047] Fig.10 is an enlarged view of the bottom of the applicator according to the second embodiment of the present disclosure;

[0048] 11A to 11C are perspective views of an applicator according to a third embodiment of the present disclosure;

[0049] Fig.12 is an exploded perspective view of an applicator according to a third embodiment of the present disclosure;

[0050] 13A and 13B illustrate a combination of internal components of an applicator according to a third embodiment of the present disclosure;

[0051] Fig.14 A method for fastening a spring according to a third embodiment of the present disclosure is shown;

[0052] Fig.15 illustrates the operation of an applicator according to a third embodiment of the present disclosure;

[0053] 16A and 16B are perspective views of an applicator according to a fourth embodiment of the present disclosure;

[0054] Fig.17 is an exploded perspective view of an applicator according to a fourth embodiment of the present disclosure;

[0055] Fig.18 is a cross-sectional view taken along line II' of FIG. 16A;

[0056] Fig.19 illustrates the operation of an applicator according to a fourth embodiment of the present disclosure;

[0057] Fig. 20 A cross-sectional view and a partial enlarged view taken along line II-II' of FIG. 16A ;

[0058] Fig.21A cross-sectional view and a partial enlarged view taken along line III-III' of FIG. 16A ;

[0059] Fig. 22 is a stereoscopic view of an applicator according to Embodiment 5-1 of the present disclosure;

[0060] Fig.23 An exploded perspective view of an applicator according to Embodiment 5-1 of the present disclosure;

[0061] Fig.24 The interior of the applicator according to the 5-1 embodiment of the present disclosure is shown;

[0062] Fig.25 The operating principle of the applicator according to the 5-1 embodiment of the present disclosure is shown;

[0063] Fig.26 and Fig. 27 The structure for preventing the applicator from being triggered according to the 5-1 embodiment of the present disclosure is shown;

[0064] Fig.28 is a perspective view of the bottom of the applicator according to the 5-1 embodiment of the present disclosure;

[0065] Fig.29 The transmitter holder and transmitter of the applicator 5-1 embodiment of the present disclosure are shown;

[0066] Fig.30 4. The figure shows the state of the applicator after being triggered according to the 5-1st embodiment of the present disclosure;

[0067] Fig.31 The operating principle of the applicator according to the 5-2 embodiment of the present disclosure is shown;

[0068] Fig.32 is a perspective view of an applicator according to Embodiment 6-1 of the present disclosure;

[0069] 33A and 33B show the interior of the applicator according to the 6-1st embodiment of the present disclosure;

[0070] Fig.34 for Fig.32 a cross-sectional view taken along line II' and an enlarged view thereof;

[0071] Fig.35 is a perspective view of an applicator according to Embodiment 6-2 of the present disclosure;

[0072] Fig.36 is a cross-sectional perspective view of an applicator according to the 6-2 embodiment of the present disclosure;

[0073] Fig.37 is a perspective view of an applicator according to a seventh embodiment of the present disclosure;

[0074] Fig.38 shows the interior of an applicator according to a seventh embodiment of the present disclosure;

[0075] Fig.39 is a front view of a needle carrier according to a seventh embodiment of the present disclosure; and

[0076] Fig.40 A configuration for preventing the applicator from being triggered according to a seventh embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0077] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. When assigning reference numerals to components in each figure, it should be noted that the same components should be assigned the same symbols as much as possible even if they are shown on different drawings. In addition, when describing the present disclosure, if the detailed description of the relevant known configuration or function is judged to obscure the main points of the present disclosure, the detailed description is omitted.

[0078] When describing the components according to the embodiments of the present disclosure, symbols such as first, second, i), ii), a), b) may be used. These symbols are only used to distinguish a component from other components, and the nature, order or sequence of the components is not limited by the symbols. When a part in the specification is referred to as "including" or "providing" a component, this does not mean that other components are excluded, but other components may be further included unless otherwise explicitly stated.

[0079] In the present disclosure, the term "distal position" refers to a position relatively farther from the skin than the "proximal position". Meanwhile, the distal end and the proximal end are concepts of relative positions, and it can be understood that one element is located proximal to another element while still being located distal to the other element.

[0080] In the present disclosure, the term "initial state" refers to a state before a user uses the applicator.

[0081] Furthermore, in the present disclosure, the term "trigger" refers to an action of a user by which the applicator inserts a needle into the user's skin.

[0082] Furthermore, in the present disclosure, the term "retraction" is a process in which a pointer returns to its original position after penetrating and inserting into the user's skin.

[0083] Furthermore, in the present disclosure, the term "upwardly" refers to a direction from the proximal end to the distal end.

[0084] Furthermore, in the present disclosure, the term "downward" refers to a direction from the distal end to the proximal end.

[0085] In addition, in the present disclosure, the term "horizontal" refers to a flat surface that the applicator contacts when the applicator is used, which may refer to the skin surface. In the present disclosure, the curvature of the skin surface is not considered, and the description will be made assuming that the user's skin surface is flat.

[0086] 1. First Embodiment

[0087] 1A and 1B are perspective views of an applicator according to a first embodiment of the present disclosure.

[0088] Specifically, FIG. 1A shows a state in which the cover 120 is installed, and FIG. 1B shows a state in which the cover 120 is removed.

[0089] The applicator 100 according to the first embodiment of the present disclosure includes a handle 110 and a cover 120 configured to be mounted on the handle 110 (see FIG. 1A ).

[0090] When the cover 120 according to the first embodiment of the present disclosure is removed from the handle 110, a portion of the support portion 130 is exposed (see FIG. 1B ). The support portion 130 directly contacts the user's skin and is formed so that at least a portion of the support portion 130 can be inserted into the handle 110 .

[0091] Figure 2 FIG3A is an exploded perspective view of an applicator according to a first embodiment of the present disclosure. FIG3A is a cross-sectional view taken along line II' of FIG1A. FIG3B is a cross-sectional view taken along line II-II' of FIG1A.

[0092] Will refer to Figure 2 3B describe the combined relationship between the components of the applicator 100 according to the first embodiment of the present disclosure.

[0093] The applicator 100 according to the first embodiment includes all or part of a handle 110 , a cover 120 , a support 130 , one or more gears 140 , a needle carrier 150 , a needle holder 160 , a needle 170 , and a transmitter holder 180 .

[0094] The handle 110 is configured to be grasped by a user, and preferably has a generally cylindrical shape.

[0095] The handle 110 includes all or part of a hook hole 111 , one or more pressing rods 112 , a first rack 113 , and a hook mounting groove 114 .

[0096] The hook hole 111 is formed on the outer peripheral surface of the handle 110 and is configured so that the hook 132 can be hung in the hook hole 111. The hook hole 111 is preferably formed at the top, that is, more than half of the height of the handle 110.

[0097] The one or more pressing rods 112 are rods protruding inward from the inner top surface of the handle 110 (see FIG. 3A ). The one or more pressing rods 112 are configured to press the needle carrier 150 .

[0098] In this case, preferably, the one or more pressing bars 112 include a pair of pressing bars 112 and 112', which are arranged at positions symmetrical to each other with respect to the center of the handle 110. Therefore, when the needle carrier 150 is pressed by the handle 110, the needle carrier 150 can be pressed as a whole by the same force without being biased to one side. In this way, when the needle carrier 150 moves from the distal position to the proximal position or moves from the proximal position to the distal position again, the needle carrier 150 can move stably, which can provide a soft feeling of use for the user.

[0099] The first rack gear 113 is formed on the inner peripheral surface of the handle 110 along the height direction of the handle 110. The first rack gear 113 is formed in a pair to face one or more gears 140 (see FIG. 3A).

[0100] The hook installation groove 114 is formed on the inner circumferential surface of the handle 110 and is configured such that the hook 132 can be hung in the hook installation groove 114. The hook installation groove 114 is formed at the bottom, that is, below half the height of the handle 110. Therefore, in an initial state, the hook 132 can be fixed to the hook installation groove 114 (see FIG. 3B ).

[0101] At the same time, the hook 132 may be formed to protrude more from the top to the bottom. In addition, the hook 132 is configured to have a lower surface parallel to the horizontal plane. The hook mounting groove 114 may be formed to correspond to the shape of the hook 132. Therefore, in the initial state, the hook 132 is suspended in the hook mounting groove 114, so that the needle carrier 150 no longer moves proximally relative to the handle 110.

[0102] The cover 120 is configured to cover at least a portion of the support 130 and can protect the interior of the applicator 100 from external contaminants or impacts. The user removes the cover 120 from the handle 110 so that the user is ready to use the applicator 100.

[0103] The support portion 130 is configured such that at least a portion of the support portion 130 can be inserted into the handle 110 , and when the handle 110 is pressed, the support portion 130 is configured to perform a linear motion within the handle 110 .

[0104] The support portion 130 may include a gear hole 131 and a hook 132 .

[0105] The gear hole 131 is formed so that one or more gears 140 can be preferably installed above half the height of the support portion 130, that is, the top. One or more gears 140 in the gear hole 131 can rotate relative to one axis. The gear hole 131 is formed in a pair, and preferably, a pair of gear holes 131 are arranged to face each other.

[0106] The hook 132 protrudes radially outward from the outer peripheral surface of the support portion 130. The hook 132 may be hung in the hook installation groove 114 in an initial state (see FIG. 3B), and may be hung in the hook hole 111 when the handle 110 is pressed all the way.

[0107] One or more gears 140 are arranged on the support portion 130 and configured to rotate along one axis. In this case, preferably, the one or more gears may be spur gears, and a pair of gears may be arranged parallel to each other.

[0108] One or more gears 140 may rotate along a portion of the handle 110 or along a portion of the needle carrier 150. Specifically, the one or more gears 140 may be configured to rotate while meshing with the first rack 113 of the handle 110 or the second rack 152 of the needle carrier 150.

[0109] The needle carrier 150 is configured to perform linear motion within the support portion 130. The needle carrier 150 may be engaged with one or more gears 140 and may perform linear motion by rotation of the one or more gears 140. Regarding the motion of the needle carrier 150, see Figure 4 Detailed description.

[0110] The needle carrier 150 includes all or part of the rod clamping portion 151 , the second rack 152 , and the through hole 153 .

[0111] The rod clamping portion 151 is mainly in contact with the pressing rod 112 when the handle 110 is pressed, and is configured to transmit the pressing force of the handle 110 to the needle carrier 150 (see FIG. 3A ). In this case, the distance between the handle 110 and the needle carrier 150 can be kept constant by the rod clamping portion 151. In addition, when the handle 110 is pressed to a certain extent or more, the rod clamping portion 151 surrounds at least a portion of the outer circumferential surface of the pressing rod 112 and is configured to move along the height direction of the pressing rod 112. Therefore, the distance between the handle 110 and the needle carrier 150 can be gradually reduced. Regarding the relationship between the rod clamping portion 151 and the pressing rod 112, see Figure 4 Detailed description.

[0112] Preferably, the rod clamping portion 151 includes a pair of rod clamping portions 151 and 151' arranged at positions symmetrical to each other with respect to the center of the handle 110. In this case, the pair of rod clamping portions 151 and 151' are arranged to face the pair of pressing rods 112 and 112'.

[0113] The rod clamping part 151 may have a generally clamp-shaped end to wrap the pressing rod 112. However, preferably, since the rod clamping part 151 is pressed by the pressing rod 112 and moves downward in the initial state, the shortest distance between the two ends of the clamp is preferably smaller than the diameter of the pressing rod 112.

[0114] The second rack gear 152 is formed on the outer peripheral surface of the needle carrier 150 along the height direction of the needle carrier 150. The second rack gear 152 is formed in a pair to face the one or more gears 140 (see FIG. 3A).

[0115] The through hole 153 is formed at the center of the needle carrier 150 and is formed to penetrate the needle carrier 150. The needle holder 160 may be pressed into the through hole 153.

[0116] The needle holder 160 is constrained by the linear motion of the needle carrier 160 and is configured to perform linear motion together. To this end, preferably, the needle carrier 160 is frictionally coupled to the through hole 153. However, the present disclosure is not limited thereto, and adhesive bonding or structural bonding is acceptable.

[0117] The needle 170 is coupled to the needle holder 160, is constrained by the linear motion of the needle holder 160, and is configured to perform linear motion therewith. The needle 170 is configured to penetrate the skin of a user.

[0118] The transmitter holder 180 is coupled to the transmitter 10 and is configured to perform a linear motion from the distal position to the proximal position. At the same time, the transmitter holder 180 moves only in the direction from the distal position to the proximal position.

[0119] Figure 4 The operation of the applicator according to the first embodiment of the present disclosure is shown. Figure 4 In FIG. 1 , it will be noted that the emitter 10 has been omitted from the figure in order to show the structure of the applicator 100 in more detail.

[0120] Figure 4 (a) shows the state before the handle 110 is pressed, that is, the initial state. Figure 4 (a), in an initial state, the handle 110, the needle carrier 150, the needle holder 160, the needle 170 and the transmitter holder 180 are arranged at a distal position.

[0121] Furthermore, the one or more gears 140 are in a state of facing the second rack 152 instead of facing the first rack 113 .

[0122] Furthermore, the rod clamping portion 151 is in a state of being in contact with only the pressing rod 112 .

[0123] Figure 4 (b) shows a state in which about half of the handle 110 is pressed and the needle 170 is inserted into the skin.

[0124] See also Figure 4 (b), when the handle 110 is pressed, the pressing rod 112 presses the rod clamping portion 151. In this case, as described above, since the shortest spacing distance between the two ends of the rod clamping portion 151 is smaller than the diameter of the pressing rod 112, the pressing force applied to the handle 110 is transmitted to the needle carrier 150, the needle holder 160 and the needle 170 through the rod clamping portion 151. In this case, although the rod clamping portion 151 is pressed by the pressing rod 112, the pressing rod 112 is not inserted between the two ends of the clamp. Therefore, the distance between the handle 110 and the needle carrier 150 in the initial state and the distance between the handle 110 and the needle carrier 150 in the state where about half of the handle 110 is pressed can be the same.

[0125] Meanwhile, when the needle carrier 150 moves to the proximal position, the one or more gears 140 rotate while meshing with the second rack 152. In this case, the one or more gears 140 rotate in opposite directions, the gear 140 on the left side shown rotates clockwise, and the gear 140 on the right side shown rotates counterclockwise.

[0126] Preferably, the one or more gears 140 face the distal end of the second rack 152 when the needle 170 is inserted into the user's skin to its maximum depth.

[0127] By the movement of the needle carrier 150, the transmitter holder 180 is moved together from the distal position to the proximal position.

[0128] Figure 4 (c) shows a state where the handle 110 is pressed to the bottom.

[0129] See also Figure 4 (c), when the handle is pressed to a certain extent or more, the pressing rod 112 can be inserted between the two ends of the rod clamping portion 151. In this case, the pressing rod 112 can move along the length direction of the rod clamping portion 151, and as the handle 110 is pressed, the distance between the handle 110 and the needle carrier 150 is reduced.

[0130] One or more gears 140 face the first rack 113 and rotate as the first rack 113 moves downward. In this case, the one or more gears 140 are arranged along the same Figure 4The gear 140 on the left side rotates in the opposite direction of the rotation direction in (b). That is, the gear 140 on the left side rotates counterclockwise, and the gear 140 on the right side rotates clockwise.

[0131] When the one or more gears 140 rotate, they are again meshed with the second rack 152. At the same time, due to the reverse rotation of the one or more gears 140, the needle carrier 150 moves from the proximal position to the distal position. Therefore, the needle holder 160 and the needle 170 move from the proximal position to the distal position. Therefore, the needle 170 can be pulled out from the user's skin.

[0132] Meanwhile, the transmitter holder 180 is formed not to be separately fastened to the needle carrier 150. Therefore, although the needle carrier 150 is moved from the proximal position to the distal position, the transmitter holder 180 can be maintained at the proximal position.

[0133] In the applicator 100 according to the first embodiment of the present disclosure, only by the user grasping the handle 110 and pressing the handle 110 from the distal position to the proximal position once, the needle 170 can be inserted into and pulled out of the skin by relying on the combined relationship between the gear and the rack inside the applicator 100. Therefore, the operation method is simple, the number of parts is small, and it is easy to manufacture.

[0134] 2. Second Embodiment

[0135] 5A and 5B are perspective views of an applicator according to a second embodiment of the present disclosure.

[0136] Specifically, FIG. 5A shows a state in which the cover 220 is installed, and FIG. 5B shows a state in which the cover 220 is removed.

[0137] An applicator 200 according to the second embodiment of the present disclosure includes a handle 210 and a cover 220 configured to be mounted on the handle 210 (see FIG. 5A ).

[0138] When the cover 220 is removed from the handle 210 , all or part of the support portion 230 is exposed (see FIG. 5B ). The support portion 230 is in direct contact with the user's skin and is formed such that at least a portion of the support portion 230 is inserted into the handle 210 .

[0139] Figure 6 is an exploded perspective view of an applicator according to a second embodiment of the present disclosure. Figure 7 A cross-sectional view taken along line II' in FIG. 5B

[0140] Will see Figure 6 and Figure 7 A combination relationship between components of an applicator 200 according to a second embodiment of the present disclosure is described.

[0141] The applicator 200 according to the second embodiment includes all or part of a handle 210 , a support 230 , one or more cranks 240 , one or more connecting rods 250 , a needle carrier 260 , a needle 270 , a transmitter holder 280 , and a cover 220 .

[0142] The handle 210 is configured to be grasped by a user, and preferably has a generally cylindrical shape.

[0143] The support portion 230 is configured such that at least a portion of the support portion 230 is inserted into the handle 210 , and when the handle 210 is pressed, the support portion 230 is configured to perform a linear motion within the handle 210 .

[0144] Preferably, the support portion 230 may be manufactured by injection molding. In this case, the first structure 230a and the second structure 230b may be manufactured separately, and the first structure 230a and the second structure 230b may be assembled with each other to form the support portion 230.

[0145] The support portion 230 includes a crank shaft 231 protruding radially inward from one surface. One or more cranks 240 may be coupled to the crank shaft 231.

[0146] One or more cranks 240 are configured to perform rotational motion or linear motion within the handle 210. Meanwhile, in the present disclosure, description has been made assuming that there are two cranks 240, however, there may be one crank or three or more cranks, and it should be noted that this may be appropriately changed in design by the designer.

[0147] One or more cranks 240 include a first crank 241 and a second crank 242. Preferably, the first crank 241 and the second crank 242 can be manufactured by injection molding. In this case, each crank can be formed by assembling the first components 241a and 242a and the second components 241b and 242b with each other.

[0148] One or more cranks 240 may be arranged along a rack formed in the handle 210 (see Figure 7 The rack 211 can be formed on the inner bottom of the handle 210 to extend in the height direction. In addition, preferably, the racks 211 can be arranged in pairs facing each other, one on each side, and radially opposite to each other. The first crank 241 and the second crank 242 are respectively arranged to face each rack 211.

[0149] When the support portion 230 and the crank 240 are formed by assembling two parts, there is an effect of reducing the manufacturing difficulty and manufacturing cost of the applicator 200.

[0150] One end of one or more connecting rods 250 is fastened to the crank 240, and the other end thereof is fastened to the needle carrier 260. Specifically, one connecting rod 250 includes a first insertion hole 253 formed in one end of the connecting rod 250, and the first rod protrusion 244 is inserted into the first insertion hole 253. In addition, one connecting rod 250 includes a second insertion hole 254 formed in the other end of the connecting rod 250, and the rod fixing protrusion 261 is inserted into the second insertion hole 254.

[0151] The one or more connecting rods 250 may include a first connecting rod 251 and a second connecting rod 252. The first connecting rod 251 is fastened to the first crank 241, and the second connecting rod 252 is fastened to the second crank 242.

[0152] The needle carrier 260 is subjected to rotational motion and linear motion of one or more cranks 240 and can perform linear motion between a distal position and a proximal position. In this case, the needle carrier 260 is connected to the one or more cranks 240 through a connecting rod 250.

[0153] The needle carrier 260 is configured to make the needle 270 move linearly from the distal position to the proximal position. In addition, when the needle carrier 260 moves from the proximal position to the distal position, the needle 270 moves from the proximal position to the distal position together.

[0154] The needle carrier 260 may be formed by assembling two different parts 260a and 260b.

[0155] The transmitter holder 280 is coupled to the transmitter 20 and is configured to make the transmitter 20 perform linear motion from the distal position to the proximal position. Meanwhile, although the transmitter holder 280 reciprocates between the distal position and the proximal position, the transmitter 20 moves only in the direction from the distal position to the proximal position.

[0156] Figure 8 The operation of the applicator according to the second embodiment of the present disclosure is shown.

[0157] Figure 8 (a) shows a state before the handle 210 is pressed.

[0158] See also Figure 8 (a), one or more cranks 240 are arranged on the distal end of the rack 211. The support portion 230 is in contact with the skin, and the transmitter 20 and the transmitter holder 280 are in a distal position state separated from the skin. In addition, one end of the connecting rod 250 is arranged at the most distal position relative to the one or more cranks 240.

[0159] Figure 8 (b) shows a state in which about half of the handle 210 is pressed and the needle 270 is inserted into the skin.

[0160] See also Figure 8 (b), the handle 210 is pressed, and one or more cranks 240 rotate. Specifically, the crank 240 disposed on the right rotates clockwise, and the crank 240 disposed on the left rotates counterclockwise, and this is not a full circle of rotation, but about half of the rotation, and the crank 240 can be disposed in the middle of the rack 211. Therefore, the handle 210 moves only about the total moving distance along the support portion 230.

[0161] exist Figure 8 In the state of (b), the transmitter 20 and the transmitter holder 280 are in a proximal state in contact with the skin. In addition, one end of the connecting rod 250 is set at the most proximal position relative to the one or more cranks 240.

[0162] Figure 8 (c) shows the handle 210 being pushed all the way down and the needle 270 being retracted from the skin.

[0163] See also Figure 8 (c), the handle 210 is further pressed, and the one or more cranks 240 rotate. Specifically, the crank 240 disposed on the right rotates clockwise, and the crank 240 disposed on the left rotates counterclockwise, completing the remaining half of the rotation, and the crank 240 is disposed at the distal end of the rack 211. Therefore, the handle 210 moves along the support portion 230 for the entire total moving distance. In addition, one end of the connecting rod 250 is again disposed at a distal position relative to the one or more cranks 240.

[0164] exist Figure 8 In the state of (c), the transmitter 20 is attached to the skin, and the needle carrier 260 is moved to the distal position by the movement of the connecting rod 250. Therefore, the needle 270 that has been inserted into the skin is pulled out from the skin.

[0165] In summary, when the handle 210 passes Figure 8 When the process (a) to (c) moves unidirectionally from the distal position to the proximal position, the needle carrier 260 moves from the distal position to the proximal position, and reciprocates from the proximal position to the distal position again. Therefore, the reciprocating stroke of inserting and withdrawing the needle 270 can only be performed by the user's handle pressing action.

[0166] FIG. 9A is a cross-sectional view taken along line II-II' of FIG. 5B

[0167] 9A , the handle 210 includes a first engaging portion 212 and a second engaging portion 213 .

[0168] The first engagement portion 212 protrudes radially inward from the inner peripheral surface of the handle 210 .

[0169] The second engaging portion 213 protrudes radially inward from the inner peripheral surface of the handle 210 and is formed at a distal end of the first engaging portion. An inclined surface is formed on the lower surface of the second engaging portion 213, and the upper surface may be formed parallel to the horizontal direction.

[0170] The support portion 230 may further include a rib 232. The rib 232 protrudes radially outward from an outer peripheral surface of the support portion 230.

[0171] FIG9A(a) shows a state before the handle 210 is pressed.

[0172] 9A (a), the rib 232 of the support portion 230 can engage with the first engagement portion 212 of the handle 210, and can prevent the rib 232 from moving toward the proximal position. That is, the rib 232 engages with the first engagement portion 212, thus preventing the handle from being removed from the state of FIG. 9A (a) to the distal position, i.e., upward.

[0173] FIG9A(b) shows a state where the handle 210 is pushed all the way down.

[0174] Referring to FIG. 9A (b), the rib 232 of the support portion 230 is engaged with the second engagement portion 213 of the handle 210, and the movement of the rib 232 to the proximal position can be prevented. That is, the rib 232 is engaged with the second engagement portion 213, so the handle can be prevented from being removed upward from the state of FIG. 9A (b). If the handle 210 is removed from the support portion 230 in the state of FIG. 9A (b), there is a risk of repeated use, but the second engagement portion 213 can have an effect of preventing repeated use.

[0175] FIG. 9B is a cross-sectional view taken along line III-III' of FIG. 5B

[0176] In this case, FIG. 9B shows the applicator 200 in a state where the handle 210 is fully pressed.

[0177] 9B , the support portion 230 according to the second embodiment of the present disclosure may further include a fixing groove 233. The fixing groove 233 is formed to be recessed radially outward from the inner circumferential surface of the support portion 230, and preferably, the fixing groove 233 is formed at a position spaced apart from the bottom of the support portion 230 by the height of the emitter holder 280.

[0178] In addition, the transmitter holder 280 includes an anti-separation protrusion 281. The anti-separation protrusion 281 is formed on the upper surface of the transmitter holder 280 and protrudes radially outward. The transmitter holder 280 may be installed in the fixing groove 233.

[0179] In this case, the upper surface of the fixing groove 233 is formed parallel to the horizontal plane. Therefore, the transmitter holder 280 moves to the proximal position and then does not move to the distal position and can be maintained at the proximal position.

[0180] Fig.10 FIG. 1 is an enlarged view of the bottom of the applicator according to the second embodiment of the present disclosure.

[0181] Specifically, Fig.10 (a) represents the state before the handle 210 is pressed, Fig.10 (b) shows a state where the handle 210 is pressed to the bottom.

[0182] See also Fig.10 The support portion 230 according to the second embodiment of the present disclosure further includes a hook-shaped protrusion 234 that protrudes radially inward from the inner bottom of the support portion 230 .

[0183] In addition, the launcher holder 280 may further include a launcher support portion 230 and a hook 283 .

[0184] The launcher support part 230 is configured to support the launcher 20 at the distal position and to release the support force provided by the launcher 20 at the proximal position. To this end, preferably, the launcher support part 230 is configured to have a cantilever shape, and the hook 283 may be provided at the free end of the launcher support part 230.

[0185] The hook-shaped protrusion 234 is formed to be engaged with the hook 283 , and the hook 283 is engaged with the hook-shaped protrusion 234 , so that the free end of the launcher support part 230 can be radially expanded outward.

[0186] 3. Third embodiment

[0187] 11A to 11C are perspective views of an applicator according to a third embodiment of the present disclosure.

[0188] 11A shows a state where the upper cover 310 and the lower cover 312 are all installed, FIG. 11B shows a state where the lower cover 312 is removed, and FIG. 11C shows a state where the upper cover 310 and the lower cover 312 are all removed.

[0189] An applicator 300 according to the third embodiment of the present disclosure includes an upper cover 310 and a lower cover 312 coupled to the upper cover 310 (see FIG. 11A ).

[0190] When the lower cover 312 is removed from the upper cover 310 , the support portion 320 is exposed, the bottom end of which is covered by the upper cover 310 and the lower cover 312 (see FIG. 11B ).

[0191] When the upper cover 310 is removed from the support part 320, the support part 320, the push cover 330 and the rotation guide 340 are exposed (see FIG. 11C). In this case, the rotation guide 340 is provided around a portion of the outer circumferential surface of the push cover 330 between the push cover 330 and the support part 320.

[0192] The push cover 330 is coupled to the rotation guide 340 , and is configured to perform linear motion along the rotation guide 340 .

[0193] The rotation guide 340 is surrounded by the support portion 320 .

[0194] The upper cover 310 , the lower cover 312 , the support portion 320 , and the push cover 330 according to the third embodiment of the present disclosure have a generally cylindrical shape, however, the present disclosure is not limited thereto.

[0195] Fig.12 is an exploded perspective view of an applicator according to a third embodiment of the present disclosure.

[0196] Will see Fig.12 The combined relationship between the components of the applicator 300 according to the third embodiment is described.

[0197] The applicator 300 according to the third embodiment includes all or part of an upper cover 310 , a lower cover 312 , a support portion 320 , a push cover 330 , a rotation guide 340 , a rotation block 350 , a needle portion 360 , a spring 370 , and a transmitter holder 380 .

[0198] The upper cover 310 and the lower cover 312 are configured to cover at least a portion of the support portion 320 and may protect the interior of the applicator 300 from external contaminants or impacts.

[0199] The support part 320 is configured so that at least a portion of the support part 320 can be inserted into the upper cover 310 and the lower cover 312, and is configured to surround a portion of the outer peripheral surface of the push cover 330. During use of the applicator 300, the support part 320 is in direct contact with the skin.

[0200] The push cover 330 is configured to be pressed by a user, and is configured to perform a linear motion along a height direction of the support portion 320 .

[0201] The rotation guide 340 is formed as a part of the outer peripheral surface surrounding the push cover 330. In this case, the push cover 330 is inserted into the upper hole 341 of the rotation guide 340. In addition, the push cover 330 can perform linear motion along the rotation guide 340. In this case, the push cover guide protrusion 331 formed on the outer peripheral surface of the push cover 330 is inserted into the push cover guide 342 formed on the upper surface of the rotation guide 340, so that the push cover 330 can be guided to perform linear motion.

[0202] Meanwhile, preferably, a plurality of cover pushing guide protrusions 331 are arranged at equal intervals along the outer circumferential surface of the cover pushing 330 , and the present disclosure is not limited thereto, and only one cover pushing guide protrusion 331 is sufficient.

[0203] The push cover 330 may further include a push rod 334. In an initial state, the push rod 334 is in contact with the rotating block 350 and may transmit pressure provided by a user to the rotating block 350.

[0204] At least a portion of the rotating block 350 is disposed in the rotating guide 340 and can perform linear motion from the distal position to the proximal position along the press fit of the push cover 330. The rotating block 350 can rotate a certain angle in the rotating guide 340. The rotating block 350 performs linear motion from the proximal position to the distal position along the rotating guide 340. For this aspect, see Fig.15 Detailed description.

[0205] The rotating block 350 includes a main body 351 and guide wings 352 .

[0206] The upper surface of the body 351 is open, and preferably has a generally cylindrical shape. The body 351 performs rotational motion and linear motion within the rotation guide 340 .

[0207] The guide wings 352 protrude radially outward from the outer peripheral surface of the main body 351. The guide wings 352 pass through the main hole of the rotation guide 340 (see Fig.15 The guide wing 352 is inserted into the rotating guide 340. The upper surface of the guide wing 352 includes an inclined surface 353. The inclined direction of the inclined surface 353 corresponds to the first seat hole (see Fig.15 343) and the second seat hole (see Fig.15 Regarding the movement of the guide wing 352, see Fig.15 Detailed description.

[0208] Meanwhile, preferably, the end of the push rod 334 is formed to have a shape corresponding to the inclined surface 353 of the guide wing 352. That is, the lower surface of the push rod 334 includes an inclined surface and may be formed to be parallel to the inclined surface 353 of the rotating block 350.

[0209] The needle part 360 is coupled to the rotating block 350 and is configured to make the needle 362 move linearly from the distal position to the proximal position. In addition, when the needle part 360 moves from the proximal position to the distal position, the needle 362 moves from the proximal position to the distal position together. The needle part 360 includes a coupling part 361 that can be coupled to the rotating block 350 and a needle 362 that penetrates the skin.

[0210] The coupling part 361 includes a circular plate-shaped member and a rod laterally protruding from the outer peripheral surface of the plate-shaped member. In this case, the rod may be formed in plural. The coupling part 361 is coupled to the rotating block 350 and may be guided by the rotating guide 340.

[0211] One end of the spring 370 is fastened to the push cover 330, and the other end of the spring 370 is fastened to the rotating block 350. In an initial state, the spring 370 in a stretched state is disposed between the push cover 330 and the rotating block 350.

[0212] The transmitter holder 380 is coupled to the transmitter 30 and is configured to make the transmitter 30 perform linear motion from the distal position to the proximal position. At the same time, the transmitter holder 380 reciprocates between the distal position and the proximal position, however, the transmitter 30 moves only in the direction from the distal position to the proximal position.

[0213] 13A and 13B illustrate combinations between internal components of an applicator 300 according to a third embodiment of the present disclosure.

[0214] 13 shows a state where the push cover 330, the rotation guide 340, the rotation block 350 and the launcher holder 380 are coupled to each other, ie, an initial state, and FIG. 13B shows a state where the rotation block 350 and the needle portion 360 are coupled to each other.

[0215] 13A , the push cover 330 may be inserted into the rotation guide 340 through an upper hole 341 formed in an upper surface of the rotation guide 340 .

[0216] The guide wings 352 of the rotating block 350 may be inserted into the holes formed in the rotating guide 340 .

[0217] When the coupling portion 361 is inserted into the needle guide 346 formed on the outer circumferential surface of the rotation guide 340, the needle portion 360 may be coupled to the rotation guide 340. The needle guide 346 may be formed at a plurality of main holes (see Fig.15 345).

[0218] The launcher holder 380 may be inserted into the main hole 345 of the rotation guide 340 , and thus may be coupled to the rotation guide 340 .

[0219] 13B , the rotating block 350 may further include a needle mounting portion 355 protruding downward from the outer bottom. A needle coupling portion 361 may be coupled to the needle mounting portion 355.

[0220] Fig.14 A method for fastening a spring according to a third embodiment of the present disclosure is shown. Fig.14A detailed configuration in which the spring 370 is fastened to the push cover 330 and the rotating block 350 is described.

[0221] Fig.14 (a) shows the combined relationship between the push cover 330 and the spring 370, and the inner surface of the push cover 330 and the spring 370 are observed from the perspective of a three-dimensional front view.

[0222] See also Fig.14 (a), the push cover 330 includes a first spring retainer 332 formed on the upper surface. One end of the spring 370 may be engaged with the first spring retainer 332.

[0223] Fig.14 (b) shows the combination relationship between the rotating block 350 and the spring 370, and the rotating block 350 and the spring 370 are observed from the perspective of a three-dimensional front view.

[0224] See also Fig.14 (b), the rotating block 350 includes a second spring retainer 354 protruding inwardly from the inner bottom. The other end of the spring 370 can be engaged with the second spring retainer 354. In this case, the second spring retainer 354 can protrude from the inner bottom of the body 351.

[0225] That is, the push cover 330 and the rotating block 350 are in a state of being connected to each other via the spring therebetween, and in this case, the spring 370 is in a stretched state from the initial state, preferably, in a state of rotating in the stretched direction and in one direction. Therefore, the spring 370 can be in a state where the spring 370 has the potential energy of being compressed and rotating in a direction opposite to the above-mentioned one direction.

[0226] Meanwhile, in the initial state, the distance between the push cover 330 and the rotating block 350 can be determined by the push rod of the push cover 330 (see Fig.12 334) to maintain.

[0227] Fig.15 The operation of the applicator according to the third embodiment of the present disclosure is shown.

[0228] Fig.15 The first row shows the front of the applicator 300, and the second row shows the cross section of the applicator 300. In this case, the cross section is made by cutting the state in which the push cover 330 and the rotation guide 340 of FIG. 11C are coupled to each other along the II' line.

[0229] See also Fig.15, the push cover 330 may further include an engagement protrusion 333 protruding radially outward from the outer peripheral surface. The engagement protrusion 333 may engage with the outer upper surface of the rotation guide 340. Therefore, the applicator 300 may be prevented from being accidentally triggered due to the user pressing the push cover 330. At the same time, when a certain or greater pressing force is applied to the engagement protrusion 333, the engagement between the engagement protrusion 333 and the push cover 330 may be released. That is, the applicator 300 according to the third embodiment of the present disclosure may naturally induce the user to press the push cover 330 with a certain force or more.

[0230] In addition, the rotation guide 340 may further include a first seat hole 343 , a second seat hole 344 and a main hole 345 .

[0231] The first seat hole 343 is formed on the outer circumferential surface of the rotation guide 340 and is formed so that the guide wing 352 can be installed in the first seat hole 343. For this reason, preferably, the first seat hole 343 has the same shape as the inclined surface 353 of the guide wing 352.

[0232] The second seat hole 344 is formed on the outer circumferential surface of the rotation guide 340, and is formed so that the guide wing 352 can be installed in the second seat hole 344. In this case, the second seat hole 344 is formed adjacent to the first seat hole 343. Preferably, the angle between the second seat hole 344 and the first seat hole 343 is formed to be smaller than the angle at which the spring 370 rotates in the initial state.

[0233] The main hole 345 is formed on the outer circumferential surface of the rotation guide 340 and is formed below the first seat hole 343 and the second seat hole 344. The first seat hole 343 and the second seat hole 344 have a shape that merges from the bottom into the main hole 345. In other words, the first seat hole 343 and the second seat hole 344 diverge from the main hole 345.

[0234] Hereinafter, the operating method of the applicator 300 as described above will be described in detail.

[0235] Fig.15 (a) shows a state before the push cover 330 is pressed.

[0236] See also Fig.15 In the front view of (a), the push cover 330 and the rotating block 350 are arranged at the distal end. In this case, the guide wing 352 of the rotating block 350 is installed in the first seat hole 343. Fig.15 In the cross-sectional view of (a), since in the initial state, the push rod 334 presses the inclined surface 353 of the guide wing 352, the push cover 330 and the rotating block 350 are spaced apart from each other by a certain distance. Therefore, the spring 370 is in a stretched state and a rotating state.

[0237] Fig.15 (b) shows a state where the push cover 330 is pressed, and shows a state where the rotating block 350 moves from the distal position to the proximal position. In this case, the guide wing 352 of the rotating block 350 moves to the proximal position while being arranged parallel to the first seat hole 343. Fig.15 In the cross-sectional view of (b), the push rod 334 still presses the inclined surface 353 of the guide wing 352, and the push cover 330 and the rotating block 350 are spaced apart from each other by a certain distance. In addition, the spring 370 is still in a stretched and rotating state.

[0238] Fig.15 (c) shows a state in which the rotating block 350 rotates from the proximal position in a direction opposite to the above-mentioned one direction when the push cover 330 is pressed. In this case, the guide wing 352 of the rotating block 350 rotates in a direction opposite to the above-mentioned one direction in the proximal state. This means that the spring 370 rotates by the potential energy possessed by the spring 370 until the process (b). At the same time, due to the rotation of the spring 370, the rotating block 350 fastened to the spring 370 rotates together.

[0239] See also Fig.15 In all the front views and cross-sectional views of (c), due to the rotation of the rotating block 350, the inclined surface 353 of the guide wing 352 no longer faces the push rod 334. Therefore, there is no structure that inhibits the guide wing 352 from moving to the distal position, and therefore the spring 370 can be in a compressible state.

[0240] Fig.15 (d) shows a state in which the rotating block 350 moves from the proximal position to the distal position when the push cover 330 is pressed. When the spring 370 is pressed, the rotating block 350 is installed in the second seat hole 344. As described above, the push rod 334 and the guide wing 352 are located at the cross position, and the rotating block 350 can move to the distal position.

[0241] Meanwhile, although in the present disclosure, Fig.15 Operations (a) to (d) are shown to be performed at regular time intervals, but operations (b) to (c) are performed at the moment when the user presses the push cover 330. Therefore, since the operations are performed faster than the average user recognition speed, the user can simply use the applicator 300 without feeling much pain.

[0242] Furthermore, when using the applicator 300 according to the third embodiment of the present application, the needle can be inserted into and pulled out of the skin simply by the user's operation of pressing the push cap 330 , so it is intuitive and simple, and pain can be minimized.

[0243] 4. Fourth embodiment

[0244] 16A and 16B are perspective views of an applicator according to a fourth embodiment of the present disclosure.

[0245] Specifically, FIG. 16A shows a state in which the cover 420 is installed, and FIG. 16B shows a state in which the cover 420 is removed.

[0246] An applicator 400 according to the fourth embodiment of the present disclosure includes a handle 410 and a cover 420 detachable from the handle 410 (see FIG. 16A ).

[0247] When the cover 420 according to the fourth embodiment of the present disclosure is removed from the handle 410 , a portion of the cylinder 430 is exposed (see FIG. 16B ). In this case, at least a portion of the piston 440 is inserted into the handle 410 .

[0248] Fig.17 is an exploded perspective view of an applicator according to a fourth embodiment of the present disclosure. Fig.18 16A is a cross-sectional view taken along line II'. Fig.17 and Fig.18 The combined relationship between the components of the applicator 400 according to the fourth embodiment is described. Fig.18 The appearance of the applicator 400 before use is shown after the applicator is manufactured, where an initial use state is established when the cover 420 is removed.

[0249] The applicator 400 according to the fourth embodiment includes all or part of a handle 410 , a cap 420 , a cylinder 430 , a piston 440 , and a transmitter holder 450 .

[0250] The handle 410 is configured to be gripped by a user and preferably has a generally cylindrical shape. The upper surface of the handle 410 is covered by a handle cover 411. The handle cover 411 is coupled to the handle 410, thereby forming a receiving space within the handle 410, and since only the handle cover 411 needs to be assembled in the last step after the internal assembly of the applicator 400, the assembly process is easier. However, the present invention is not limited thereto, and the handle 410 and the handle cover 411 may be formed as an integral structure according to the designer's choice.

[0251] The cover 420 is configured to be mounted on or removed from the handle 410, and can protect the interior of the applicator 400 from external contaminants or impacts. Preferably, the cover 420 has a generally cylindrical shape.

[0252] The cylinder 430 is configured such that at least a portion of the cylinder 430 is inserted into the handle 410. The cylinder 430 includes a first body 431 and a second body 432 disposed below the first body 431. Preferably, the diameter of the first body 431 is formed to be smaller than the diameter of the second body 432.

[0253] When the applicator 400 is in use, the barrel 430 is in direct contact with the user's skin.

[0254] The piston 440 is configured such that at least a portion of the piston 440 is inserted into the cylindrical member 430. The outer diameter of the piston 440 is configured to be equal to or slightly smaller than the inner diameter of the first body 431. Therefore, the piston 440 is pressed into the first body 431, and the fluid communication between the first body 431 and the piston 440 and the external air is restricted.

[0255] The rubber pad 441 is coupled to the end of the piston 440. The interior of the first body 431 into which the piston 440 is inserted may be sealed by the rubber pad 441 and the gasket 430a. Meanwhile, the rubber pad 441 may be double-molded and formed in the piston 440 during a manufacturing operation, but the present disclosure is not limited thereto.

[0256] The flange 443 is formed on one surface of the piston 440. The diameter of the flange 443 is larger than the inner diameter of the first body 431 and smaller than the inner diameter of the second body 432.

[0257] In addition, a needle 442 is attached to one surface of the flange. The needle 442 is configured to penetrate and be inserted into the user's skin, and may penetrate the transmitter holder 450 and the transmitter (not shown).

[0258] The transmitter holder 450 is coupled to the transmitter (not shown) and is configured to allow the transmitter to perform linear motion from the distal position to the proximal position. At the same time, the transmitter holder 450 and the transmitter can only move in the direction from the distal position to the proximal position.

[0259] The launcher holder 450 is configured to be moved by pressing the piston 440 from the distal position to the proximal position, and in this regard, reference will be made to Fig.19 Detailed description.

[0260] Fig.19 The operation of the applicator according to the fourth embodiment of the present disclosure is shown. Specifically, Fig.19 16A is a cross-sectional view taken along line II' of FIG. 16A , and illustrates the process of the applicator 400 operating.

[0261] See also Fig.19 As shown, the handle 410 includes a cantilevered hook 413 with one end being a free end. The hook 413 is provided on the inner circumferential surface of the handle 410 and is configured to be hung and fitted into the flange 443 of the piston 440. In this case, preferably, the fixed end of the hook 413 is provided below the free end. Therefore, when the piston 440 moves from the distal end position to the proximal end position, the hook 413 can press the flange 443 in the moving direction.

[0262] Meanwhile, the cylinder 430 includes a hook stopper 433. The hook stopper 433 protrudes radially inward from the inner circumferential surface of the cylinder 430. The hook stopper 433 is configured to release the hanging and fitting of the hook 413. Hereinafter, the operation method of the hook 413 and the hook stopper 433 will be described.

[0263] Fig.19 (a) shows a state before the handle 410 is pressed.

[0264] See also Fig.19 (a), the handle 410 is spaced apart from the user's skin. In addition, the piston 440 is pressed into the first body 431 of the cylinder 430. Since there is a very small amount of air between the piston 440 and the first body 431, it is preferable to have a sub-vacuum state.

[0265] The hook 413 of the handle 410 is hung and fitted into the flange 443 .

[0266] The transmitter holder 450 is supported by the handle 410 and is disposed at a distal position. Fig. 20 The configuration in which the transmitter holder 450 is supported by the handle 410 is described in detail.

[0267] Fig.19 (b) shows a state in which the handle 410 is pressed and the needle 442 is inserted into the skin.

[0268] See also Fig.19 (b), when the user presses the handle 410, the piston 440 moves from the distal position to the proximal position. At the same time, when the handle 410 moves to the proximal position, the hook 413 contacts the hook blocking portion 433, and when the handle 410 moves further to the proximal position, the hook 413 moves outward. In other words, when the hook 413 is disengaged from the hook blocking portion 433, the combination between the hook 413 and the flange 443 can be released. Therefore, the launcher holder 450 can be free from the movement of the piston 440.

[0269] Simultaneously, as the piston 440 moves from the distal position to the proximal position, the needle 442 is inserted into the user's skin.

[0270] exist Fig.19 In the state (b), the internal pressure becomes very small due to the increase in volume between the piston 440 and the first body 431. Therefore, the piston is then pushed back toward the distal position. In this case, since the hook 413 of the handle 410 no longer constrains the flange 443 of the piston 440, the piston 440 is in a state of returning to the distal position again.

[0271] Meanwhile, since the flange 443 of the piston 440 is no longer fastened to the hook 413, the piston 440 is not constrained by the pressing of the handle 410. Therefore, even if the handle 410 is pressed again, the state of the piston 440 in the state of being inserted into the distal end of the cylinder 430 does not change. That is, the reuse of the applicator 400 becomes impossible.

[0272] Since the needle is inserted into the user's skin once, various diseases may be infected when it is reused. Therefore, the needle can also be used when the applicator does not need to be reused. In the applicator 400 according to the fourth embodiment of the present disclosure, it is possible to prevent reuse in structure.

[0273] Fig.19 (c) shows a state where the needle 442 is pulled out from the skin.

[0274] See also Fig.19 (c), the handle 410 is located at the proximal position, and the piston 440 moves from the proximal position to the distal position. Through the movement of the piston 440, the needle 442 inserted into the user's skin can be pulled out. The piston 440 is inserted into the first body 431 again.

[0275] The transmitter holder 450 is maintained in a proximal position, ie, close to the skin.

[0276] Fig. 20 It is a cross-sectional view and a partially enlarged view taken along line II-II' in FIG. 16A .

[0277] Fig. 20 The initial state is shown, and a construction for preventing triggering in the initial state is described, and reference will be made to Fig. 20 The combined relationship between the transmitter holder 450 and the handle 410 is described.

[0278] See also Fig. 20 , the handle 410 includes a first anti-forward protrusion 414. The first anti-forward protrusion 414 protrudes radially inward from the inner circumferential surface of the handle 410.

[0279] In addition, the cylindrical member 430 includes a second forward prevention protrusion 434. The second forward prevention protrusion 434 protrudes radially outward from the outer circumferential surface of the cylindrical member 430.

[0280] In an initial state, the first forward prevention protrusion 414 and the second forward prevention protrusion 434 face each other. Specifically, a lower surface of the first forward prevention protrusion 434 and an upper surface of the second forward prevention protrusion 434 face each other.

[0281] At the same time, the lower surface of the first anti-forward protrusion 414 and the upper surface of the second anti-forward protrusion 434 are configured to be inclined from the distal position to the proximal position. Therefore, the handle 410 may not be pressed by a force lower than a specific size, and the handle 410 can be moved from the distal position to the proximal position only by applying a force higher than a specific size. That is, in the initial state, when the handle 410 is pressed by an unexpected impact, the applicator 400 can be prevented from being triggered, and when the user intends to use the handle, a greater pressing force can be applied than the extent to which the handle is pressed all the way to the bottom. Therefore, the phenomenon that the needle is not inserted due to stopping in the middle when the handle 410 is pressed can be prevented.

[0282] The handle 410 may further include a first fixing protrusion 412. The first fixing protrusion 412 protrudes radially inward from an inner circumferential surface of the handle 410.

[0283] Furthermore, the transmitter holder 450 includes a second fixing protrusion 451. The second fixing protrusion 451 protrudes radially outward from the outer peripheral surface of the transmitter holder 450.

[0284] In an initial state, the first fixing protrusion 412 and the second fixing protrusion 451 are engaged with each other, and specifically, the second fixing protrusion 451 is disposed on the first fixing protrusion 412. Therefore, the transmitter holder 450 may be supported by the handle 410.

[0285] Meanwhile, preferably, the upper surface of the first fixing protrusion 412 and the lower surface of the second fixing protrusion 451 are formed to be parallel to the horizontal plane. Therefore, in the initial state, the transmitter holder 450 can be stably fixed without deviating from the distal end position.

[0286] Fig.21 16A along line III-III 'cut cross-sectional view and partial enlarged view

[0287] Fig.21 shows the state of the needle after it returns after triggering, and will refer to Fig.21 A configuration for preventing the applicator 400 from being reused is described.

[0288] See also Fig.21 The handle 410 may further include a first anti-retraction protrusion 415. The first anti-retraction protrusion 415 protrudes radially outward from the inner circumferential surface of the handle 410.

[0289] In addition, the cylindrical member 430 may further include a second anti-return protrusion 435. The second anti-return protrusion 435 protrudes radially outward from the outer circumferential surface of the cylindrical member 430.

[0290] In the completed state, the first anti-return protrusion 415 and the second anti-return protrusion 435 face each other, and specifically, the second anti-return protrusion 435 is disposed on the first anti-return protrusion 415. Therefore, the handle 410 can be prevented from retracting from the distal position again from the movement to the proximal position.

[0291] Meanwhile, preferably, the upper surface of the first anti-return protrusion 415 and the lower surface of the second anti-return protrusion 435 are formed to be parallel to the horizontal plane. Therefore, in the completed state, the handle 410 and the piston 440 may not deviate from the proximal position. That is, since the piston 440 may no longer move from the proximal position to the distal position, the needle 442 may be prevented from protruding to the outside of the applicator 400 again. Therefore, it has the effect of preventing the user from being stabbed or injured by the needle 442 that is contaminated after use.

[0292] 5. Example 5-1

[0293] Fig. 22 It is a stereoscopic view of the applicator according to the 5-1 embodiment of the present disclosure.

[0294] See also Fig. 22 , the applicator 500 according to the 5-1 embodiment of the present disclosure includes a shell 510.

[0295] The housing 510 is configured to be gripped by the user and preferably has a hollow cylindrical shape. In addition, the middle of the housing 510 may have a concave shape so that the user can grip the entire housing 510. Meanwhile, unlike the first to fourth embodiments described above, the applicator 500 according to the 5-1st embodiment of the present disclosure operates in an automatic triggering method, by which the applicator 500 is automatically triggered when a button is pressed instead of a direct press by the user.

[0296] To this end, the applicator 500 further includes a first button 520 and a second button 530 .

[0297] The first button 520 is disposed on the upper surface of the housing 510 and is configured to be pressed downward.

[0298] The second button 530 is provided on the outer peripheral surface of the housing 510 , and is configured to be pressed toward the inside of the housing 510 .

[0299] Fig.23 It is an exploded stereoscopic view of the applicator according to the 5-1 embodiment of the present disclosure. Fig.24 The interior of the applicator according to Embodiment 5-1 of the present disclosure is shown.

[0300] Will see Fig.23 and Fig.24 The combined relationship between the components of the applicator 500 according to the 5-1 embodiment of the present disclosure is described.

[0301] The applicator 500 according to the fifth embodiment includes all or part of a housing 510 , a first button 520 , a second button 530 , a driving portion 540 , a needle carrier 550 , and a transmitter holder 570 .

[0302] The bottom of the housing 510 contacts the user's skin and is configured to be inserted into the sensor mounted on the transmitter 50 .

[0303] Preferably, the housing 510 may be manufactured by injection molding. In this case, the first structure 510a and the second structure 510b may be manufactured separately, and the first structure 510b and the second structure 510b may be assembled with each other, so that the housing 510 may be formed.

[0304] The housing 510 may include a housing fixing portion 511 , a drum 512 , and a wheel fixing portion 513 .

[0305] The shell fixing portion 511 is configured to be combined with the first structure 510a and the second structure 510b. Specifically, the shell fixing portion 511 is configured to be fastened to the outer peripheral surface of at least a portion (preferably the upper end) of the first structure 510a and the second structure 510b. Therefore, the components of the first structure 510a and the second structure 510b can be stably fixed. When the applicator 500 is subjected to an external impact, although there is a risk that the assembled shell 510 may be disassembled, the shell fixing portion 511 firmly maintains the combination of the first structure 510a and the second structure 510b, thereby preventing the applicator 500 from being disassembled.

[0306] The drum 512 is formed to correspond to the entire shape of the spring so that the spring 541 can be disposed in the drum 512. As described below, the spring 541 according to the fifth embodiment of the present disclosure has a wound coil spring shape, and therefore, preferably, the drum 512 has a generally cylindrical shape.

[0307] A spring fixing groove 512a configured such that the outer end 541a of the spring can be mounted therein may be formed on the outer circumferential surface of the drum 512. The spring fixing groove 512a may have a shape in which at least a portion of the outer circumferential surface of the drum 512 is cut.

[0308] The wheel fixing portion 513 is disposed at the center of the drum 512 and protrudes radially inward from the inner circumferential surface of the second structure 510b. The center of the wheel 542 passes through the wheel fixing portion 513, so that the wheel 542 can be stably held in the wheel fixing portion 513. In addition, preferably, the wheel fixing portion 513 has a cylindrical shape with a smooth outer circumferential surface, so that the wheel 542 can rotate around the wheel fixing portion 513.

[0309] The first button 520 is configured to be inserted into the housing 510 and configured to be pressed in a direction from a distal position to a proximal position.

[0310] The second button 530 is configured to be inserted into the housing 510 , and configured to be pressed in a horizontal direction.

[0311] The applicator 500 may be triggered only when both the first button 520 and the second button 530 are pressed. In this case, the order in which the first button 520 and the second button 530 are pressed is not important. That is, the first button 520 and the second button 530 may function as both a safety unlock button and a press button.

[0312] The driving part 540 is configured to linearly move the needle carrier 550 and the needle 560 from the distal position to the proximal position in response to pressing the first button 520 and the second button 530. To this end, the driving part 540 may include a spring 541, a wheel 542 and a guide protrusion 543.

[0313] One end of the spring 541 is fastened to the wheel 542, and the other end of the spring 541 is fastened to one surface of the drum 512. The "one end" refers to the end disposed inside the spring 541, and the "other end" refers to the end disposed outside the spring 541. The "one end" may be hung and fixed on a protrusion formed in the wheel 542 (see Fig.26 544), the above-mentioned "other end" can be hung and fixed in a fixing protrusion (not shown) separately provided on one surface of the drum.

[0314] The spring 541 is a power source for providing power, making the linear motion of the needle carrier 550 possible. In this case, preferably, the spring 541 is a wound coil spring. The spring 541 is compressed and assembled in an initial state. By pressing the first button 520 and the second button 530, the fastening portion for fixing the compression of the spring 541 is released, and the spring 541 is stretched to return to its original state. Therefore, the inner end of the spring 541 rotates in a direction opposite to the compression direction. That is, it can be based on the principle of a stop fork or a double slider crank mechanism, whereby the rotational motion of the spring 541 is converted into the linear motion of the needle carrier 550 and the needle 560. In this regard, see. Fig.25 Detailed description.

[0315] The wheel 542 is coupled to the drum 512 and is configured so that a receiving space can be formed inside the wheel 542. The spring 541 may be disposed in the receiving space formed between the wheel 542 and the drum 512. In addition, the wheel 542 is fastened to the spring 541 and is configured to rotate together with the rotation of the spring 541.

[0316] The guide protrusion 543 protrudes from one surface of the wheel 542 toward the inside of the applicator 500 .

[0317] The needle carrier 550 is configured to perform linear motion within the housing 510. In this case, the linear motion of the needle carrier 550 may be caused by the rotational motion of the drive unit 540. To this end, the needle carrier 550 may include a transverse guide 551 and a longitudinal guide 553, and the overall shape of the needle carrier 550 may be in the shape of the English letter T (see Fig.24 ).

[0318] The guide protrusion 543 of the driving part 540 may be inserted into the transverse guide 551. When the wheel 542 rotates, the guide protrusion 543 may rotate, and thus, the guide protrusion 543 may move left and right along the transverse guide 551. Therefore, the needle carrier 550 performs a linear motion between the distal end position and the proximal end position.

[0319] The lateral guide 551 is configured to be fastened to the first button 520 and is movable only when the fastening to the first button 520 is released. Fig.26 Detailed description.

[0320] The longitudinal guide 553 extends from one surface of the transverse guide 551 in a direction from a distal position to a proximal position. The longitudinal guide 553 is combined with the needle 560 to fix the needle 560.

[0321] The longitudinal guide 553 is configured to be fastened to the second button 530 and is movable only when the fastening to the second button 530 is released. Fig. 27 Detailed description.

[0322] The needle 560 is coupled to the needle carrier 550, is constrained by the linear motion of the needle carrier 550, and is configured to perform linear motion together. The needle 560 is configured to penetrate the skin of a user.

[0323] The transmitter holder 570 is coupled to the transmitter 50 and configured to make the transmitter 50 perform linear motion from the distal position to the proximal position. The transmitter holder 570 is pressed from the distal position to the proximal position by the longitudinal guide 553. At the same time, the transmitter holder 570 moves only in the direction from the distal position to the proximal position.

[0324] Meanwhile, since the housing 510 according to the present disclosure is divided into two parts and manufactured, the spring 541, the wheel 542, the needle carrier 550, the first structure 510a and the second button 530 can be sequentially stacked on the second structure 510b in this order and assembled during the manufacturing process of the applicator 500. Therefore, the assembly process of the applicator 500 is simple and the manufacturing cost can be reduced.

[0325] Fig.25 The operating principle of the applicator according to the 5-1 embodiment of the present disclosure is shown.

[0326] Fig.25 (a) shows a state in which any one or more of the first button 520 and the second button 530 is not pressed, that is, an initial state.

[0327] See also Fig.25 (a), the guide protrusion 543 is arranged at the most distal position, so the needle carrier 550 can also be arranged at the distal position. Meanwhile, in this case, the spring 541 can be in a stretched state.

[0328] At the same time, according to Fig.25 (a), since any one or more of the first button 520 and the second button 530 are not pressed, the movement of the needle carrier 550 to the proximal position is restricted by the first button 520 or the second button 530. Therefore, the movement of the guide protrusion 543, the wheel 542, and the spring 541 directly / indirectly coupled to the needle carrier 550 is restricted.

[0329] Fig.25 (b) shows a state where both the first button 520 and the second button 530 are pressed and the needle 560 is inserted into the skin.

[0330] See also Fig.25 (b), while pressing the first button 520 and the second button 530, the fastening between the first button 520 and the transverse guide 551 and the fastening between the second button 530 and the longitudinal guide 553 are released. Therefore, the movement of the needle carrier 550 from the distal position to the proximal position is no longer restricted. Therefore, the movement of the guide protrusion 543, the wheel 542 and the spring 541 directly / indirectly coupled to the needle carrier 550 is possible.

[0331] The spring 541 is arranged in one direction (in the present disclosure) Fig.25 However, in order to allow rotation in the opposite direction, the direction of the hook formed at the other end of the spring 541 also needs to be set in the opposite direction.

[0332] The guide protrusion 543 is disposed at the proximal position, and therefore, the needle carrier 550 is also disposed at the proximal position. At the same time, the spring 541 may be in a state where about half of the tensile force of the spring 541 is released.

[0333] When the needle carrier 550 moves to the proximal position, the needle 560 can move to the proximal position and can be inserted into the skin of the user.

[0334] Fig.25 (c) shows a state where the needle 560 is pulled out from the user's skin.

[0335] See also Fig.25 (c), the spring 541 further rotates in one direction.

[0336] Therefore, the guide protrusion 543 is again disposed at the distal end position, and therefore, the needle carrier 550 is also disposed at the distal end position. At the same time, the tensile force of the spring 541 is completely released, and the spring 541 does not generate a driving force.

[0337] When the needle carrier 550 is moved to the distal position again, the needle 560 can be moved to the distal position and can be pulled out from the user's skin.

[0338] Fig.26 and Fig. 27 The structure for preventing the applicator from being triggered according to the 5-1 embodiment of the present disclosure is shown. Specifically, Fig.26 The fastening between the first button 520 and the longitudinal guide 553 is shown.

[0339] See also Fig.26 , the first button 520 of the present disclosure may further include an extension portion 521 and a coupling protrusion 522 .

[0340] The extension portion 521 protrudes downward from the lower surface of the first button 520, and is configured to be inserted into one surface of the longitudinal guide 553. Preferably, the extension portion 521 may be formed as a pair facing each other.

[0341] The engaging protrusion 522 protrudes from one surface of the extending portion 521. In this case, preferably, when the applicator 500 is assembled, the protruding direction is a direction toward the radially outer side of the applicator 500. In addition, preferably, the engaging protrusion 522 is formed to be spaced apart from the lower surface of the first button 520. Through the space between the lower surface of the first button 520 and the engaging protrusion 522, a trigger prevention portion 545 described below may be provided.

[0342] The engagement protrusion 522 may prevent the wheel 542 , particularly a portion of the wheel 542 , from rotating when facing the driving portion 540 .

[0343] The driving portion 540 may further include a spring fixing protrusion 544 and a trigger prevention portion 545 .

[0344] The spring fixing protrusion 544 is formed on one surface of the wheel 542. In this case, the above-mentioned "one surface of the wheel 542" refers to the surface on which the spring 541 is arranged. One end of the spring 541 is fastened to the spring fixing protrusion 544, so that the relative positions of the spring 541 and the wheel 542 can be fixed. At the same time, the above-mentioned "one end of the spring 541" refers to the end arranged inside the spring 541. When the spring 542 is compressed to return to its original state from the stretched state, the inner end of the spring 541 is rotated. The spring fixing protrusion 544 and the spring 541 are fastened to each other so that the wheel 542 can rotate in response to the compression process of the spring 541.

[0345] The anti-trigger portion 545 is formed on the other surface of the wheel 542. In this case, the above-mentioned "other surface of the wheel 542" is a surface formed in the opposite direction to the above-mentioned "one surface", and refers to a surface facing the needle carrier 550. The anti-trigger portion 545 may protrude from the other surface of the wheel 542 while drawing an arc along the circumference of the other surface of the wheel 542. Among them, preferably, when the applicator 500 is assembled, the protruding direction is a direction toward the radial outside of the applicator 500. In other words, the engaging protrusion 522 and the anti-trigger portion 545 are formed at positions where they protrude in opposite directions, and can be engaged with each other.

[0346] The needle carrier 550 may further include a first button assembly 554 .

[0347] The first button combination part 554 is a kind of groove or hole formed in the upper surface of the lateral guide 551, and at least a part of the extension part 521 of the first button 520 is inserted into the groove. In the initial state, the extension part 521 of the first button 520 may be a state of not being inserted into the first button combination part 554. However, preferably, when the first button 520 is pressed, the extension part 521 is inserted into the first button combination part 554. Therefore, the downward movement of the first button can be ensured.

[0348] In summary, in the initial state, the engaging protrusion 522 of the first button 520 is engaged with the anti-trigger portion 545 of the wheel 543. In this case, when the first button 520 is pressed, the extension portion 521 is inserted into the first button combination portion 554, and the first button 520 moves to the proximal position. In this case, the engaging protrusion 522 moves to the proximal position, so that the engagement of the anti-trigger portion 545 and the engaging protrusion 522 is released. Therefore, the wheel 542 is in a rotatable state.

[0349] In addition, the needle carrier 550 may further include an insertion groove 552. The insertion groove 552 is a groove recessed from one surface of the longitudinal guide 553. In this case, the above-mentioned "one surface of the longitudinal guide 553" refers to a surface facing the wheel 542. The guide protrusion 543 of the wheel 542 can be inserted into the insertion groove 552, and the guide protrusion 543 can move left and right in the insertion groove 552.

[0350] Fig. 27 The fastening between the second button 530 and the transverse guide 551 is shown.

[0351] See also Fig. 27 , the second button 530 may further include an extension portion 531 and a hook 532 .

[0352] The extension 531 protrudes from the lower surface of the second button 530 and is configured to be inserted into one surface of the lateral guide 551. In this case, preferably, when the applicator 500 is assembled, the protruding direction is a direction toward the radial outside of the applicator 500. Preferably, the extension 531 may be formed as a pair facing each other.

[0353] The hook 532 protrudes from the inner surface of the extension 531 toward the radial inside of the second button 530. Preferably, the hook 532 is spaced apart from the lower surface of the second button 530. A hook-shaped protrusion 555 described below may be disposed through the space between the lower surface of the second button 530 and the hook 532.

[0354] The hook 532 may face the needle carrier 550 , in particular the longitudinal guide 553 , to prevent linear movement of the needle carrier 550 .

[0355] To this end, the needle carrier 550 may further include a hook protrusion 555. The hook protrusion 555 protrudes from one surface of the longitudinal guide 553 toward the radial outside of the second button 530. That is, the hook 532 and the hook protrusion 555 may protrude in opposite directions, and thus may be formed at a position where the hook and the hook protrusion engage with each other.

[0356] In summary, in the initial state, the hook 532 of the second button 530 is suspended in the hook-shaped protrusion 555 of the needle carrier 550. In this case, when the second button 530 is pressed, the second button 530 moves to the radial inside of the applicator 500. Then, the hook 532 moves together, and the engagement of the hook-shaped protrusion 555 and the hook 532 is released. Therefore, the needle carrier 550 can be in a state where it can perform linear motion.

[0357] See also Fig.26 and Fig. 27 In the applicator 500 according to the 5-1st embodiment, both the first button 520 and the second button 530 need to be pressed for triggering.

[0358] That is, when the first button 520 and the second button 530 are pressed for the first time, the first button and the second button function as safety unlocking buttons, and when the first button 530 and the second button 520 are pressed continuously, they function as triggering buttons.

[0359] Meanwhile, the pressing of the first button 520 and the pressing of the second button 530 are independent mechanisms, and thus, the first button 520 and the second button 530 may be pressed in sequence regardless of the order.

[0360] Fig.28 is a bottom perspective view of the applicator according to the 5-1 embodiment of the present disclosure.

[0361] See also Fig.28 , in the applicator 500, the opening 514 is formed at the bottom. In this case, preferably, the diameter of the opening 514 is formed to be equal to or slightly larger than the maximum diameter of the emitter 50. Therefore, the phenomenon that the contaminants enter the applicator 500 can be prevented.

[0362] Fig.29 Shown are a transmitter holder and a transmitter of an applicator according to Embodiment 5-1 of the present disclosure. Fig.30 The state of the applicator according to the 5-1 embodiment of the present disclosure after the trigger is executed is shown.

[0363] See also Fig.29 , the transmitter holder 570 may include a transmitter supporting portion 571 .

[0364] Fig.29 (a) is a perspective view of the transmitter holder 570, and Fig.29 (b) is along Fig.29 (a) Cross-sectional view taken along line I-I'

[0365] The emitter support portion 571 is formed on one surface of the emitter holder 570 and is configured to hold and support the emitter 50. The emitter support portion 571 according to the present embodiment may be an o-ring (see Fig.30 ). In this case, friction may be generated between the O-ring and the transmitter 50, and the transmitter 50 may be stably held even without an additional fastening or fastening release structure, thereby reducing manufacturing costs.

[0366] Meanwhile, since an adhesive force caused by friction is formed between the transmitter support portion 571 and the transmitter 50 , a structure capable of pushing the transmitter 50 in the proximal direction is required. To this end, the transmitter holder 570 may further include a pusher 572 .

[0367] The pusher 572 is disposed on the upper surface of the launcher holder 570 and is configured to rotate around an axis parallel to the horizontal plane (see Fig.29 (b)). Meanwhile, in order to provide sufficient pressure, preferably, a plurality of pushers 572 are provided.

[0368] The first end 573 of the push member 572 is disposed outside the transmitter housing 510, and the second end 574 is disposed inside the transmitter holder 570. When the transmitter holder 570 is pressed ( Fig.29 The first end 573 collides with the inner bottom of the housing 510. Therefore, the pusher 572 can rotate in one direction. The above-mentioned "one direction" refers to Fig.29 The direction is shown by the curved arrow in (b).

[0369] When the pusher 572 is rotated, the second end 574 strongly presses the transmitter 50. Therefore, the transmitter 50 fixed by the transmitter support portion 571 can be removed from the transmitter holder 570.

[0370] 6. Example 5-2

[0371] Fig.31 The operating principle of the applicator according to Embodiment 5-2 of the present disclosure is shown.

[0372] The applicator according to the 5-2nd embodiment may share other configurations with the applicator according to the 5-2nd embodiment except the driving portion 540'. Therefore, it should be noted that in the present disclosure, only the driving portion 540' will be described.

[0373] The driving portion 540' of the applicator according to the 5-2 embodiment of the present invention includes all or part of the elastic body 541', the wheel 542', the guide protrusion, and the guide protrusion 544'.

[0374] The elastic body 541 ′ has elasticity and is therefore formed of a tensile material. For example, the elastic body 541 ′ may be a rubber band, but the material of the elastic body 541 ′ may also be appropriately changed by the designer.

[0375] One end of the elastic body 541' is fastened to the wheel 542', and the other end is fastened to a surface of the drum. The "one end" refers to the end disposed inside the elastic body 541' when it is wound, and the "other end" refers to the end disposed outside.

[0376] In the initial state, the elastic body 541' is stretched and assembled. By pressing both the first button 520 and the second button 530, the fastening part that fixes the tensile force of the elastic body 541' is released, and the elastic body 541' is compressed to return to its original state. Therefore, one end of the elastic body 541' is rotated.

[0377] The wheel 542' and the guide protrusion (not shown) according to the 5-2 embodiment have the same structure, shape and function as the wheel 542 and the guide protrusion 543 according to the 5-1 embodiment, and therefore, their detailed description is replaced by the description of the 5-1 embodiment.

[0378] The guide roller 544' protrudes from the inner surface of the housing and can be disposed adjacent to the wheel 542' so that the elastic body 541' can be retained on the guide roller 544'. Preferably, the guide roller 544' has a generally cylindrical shape. Therefore, the elastic body 541' can slide along the outer peripheral surface of the guide roller 544'.

[0379] Fig.31 (a) shows a state in which any one or more of the first button 520 and the second button 530 is not pressed, that is, an initial state.

[0380] See also Fig.31 (a), the guide protrusion (not shown) can be set at the most distal position, and therefore, the needle carrier 550' can also be set at the distal position. Meanwhile, in this case, the elastic body 541' can be in a stretched state.

[0381] At the same time, according to Fig.31 (a), since any one or more of the first button 520 and the second button 530 is not pressed, the proximal movement of the needle carrier 550' is restricted by the first button 520 or the second button 520. Therefore, the movement of the guide protrusion, the wheel 542' and the elastic body 541' directly / indirectly fastened to the needle carrier 550' is restricted.

[0382] Fig.31 (b) shows a state in which both the first button 520 and the second button 530 are pressed and the needle 560 is inserted into the skin.

[0383] See also Fig.31 (b), when both the first button 520 and the second button 530 are pressed, the fastening between the first button 520 and the second button 530 and the needle carrier 550' is released. Therefore, the movement of the needle carrier 550' from the distal position to the proximal position is no longer restricted. Therefore, the movement of the guide protrusion, the wheel 542' and the elastic body 541' directly / indirectly fastened to the needle carrier 550' is possible.

[0384] The elastic body 541' is arranged along one direction (in the present disclosure) Fig.31 However, in order to allow rotation in the opposite direction, it is necessary to change the direction in which the elastic body 541' is arranged on the guide roller 544'.

[0385] The guide protrusion is disposed at the proximal position, and therefore, the needle carrier 550' is also disposed at the proximal position. Meanwhile, the elastic body 541' may be in a state in which about half of the tensile force of the elastic body 541' is released.

[0386] When the needle carrier 550' is moved to the proximal position, the needle 560' can be moved to the proximal position and can be inserted into the skin of the user.

[0387] Fig.31 (c) shows a state where the needle 560' is pulled out from the user's skin.

[0388] See also Fig.21 (c), the elastic body 541' further rotates in one direction.

[0389] Therefore, the guide protrusion is set at the distal end position again, and therefore, the needle carrier 550' is also set at the distal end position. At the same time, the tensile force of the elastic body 541' is completely released, and the elastic body 541' does not generate a driving force.

[0390] When the needle carrier 550' is moved to the distal position again, the needle 560' can be moved to the distal position and can be pulled out from the user's skin.

[0391] 7. Example 6-1

[0392] Fig.32 It is a stereoscopic view of the applicator according to the 6-1 embodiment of the present disclosure.

[0393] See also Fig.32 , the applicator 600 according to the 6-1 embodiment of the present disclosure includes a shell 610.

[0394] The housing 610 is configured to be gripped by the user and preferably has a hollow cylindrical shape. In addition, the middle of the housing 610 may have a concave shape so that the user can grip the entire housing 610. Meanwhile, unlike the first to fourth embodiments described above, the applicator 600 according to the 6-1st embodiment of the present disclosure operates in an automatic triggering method, by which the applicator 600 is automatically triggered when a button is pressed instead of a direct press by the user.

[0395] To this end, the applicator 600 also includes a button 620 .

[0396] The button 620 is disposed on the upper surface of the housing 610 and is configured to be pressed downward.

[0397] Meanwhile, in order to prevent the applicator 600 from being accidentally triggered by pressing the button 620 due to external impact or the like regardless of the user's intention, the applicator 600 may further include a safety pin 630 .

[0398] The safety pin 630 is configured to be inserted into or removed from the housing 610 , and preferably, the safety pin 630 includes a knob-shaped configuration so that a user can easily grasp the safety pin 630 .

[0399] 33A and 33B illustrate the interior of an applicator according to the 6-1st embodiment of the present disclosure.

[0400] 33A is a rear perspective view of a state in which the internal components are coupled to each other, and FIG. 33B is a front exploded perspective view of a state in which the internal components are disassembled.

[0401] The combined relationship between the components of the applicator 600 according to the 6-1st embodiment of the present disclosure will be described with reference to FIGS. 33A and 33B .

[0402] The applicator 600 according to the 6-1st embodiment includes all or part of a driving portion 640 , a needle carrier 650 , and a transmitter holder 660 , which are disposed inside a housing 610 .

[0403] The driving portion 640 includes a spring 641 and a wheel 642 .

[0404] The spring 641 and the wheel 642 according to the 6-1 embodiment have the same structure, shape and function as the spring 541 and the wheel 542 of the applicator 500 according to the 5-1 embodiment, and therefore, their detailed description is replaced by the description of the 5-1 embodiment.

[0405] The needle carrier 650 is configured to perform linear motion in the housing 610. In this case, the linear motion of the needle carrier 650 may be caused by the rotational motion of the driving part 640. To this end, the needle carrier 650 may include a transverse guide 651 and a longitudinal guide 653, and the overall shape of the needle carrier 650 may be in the shape of the English letter T.

[0406] A guide protrusion (not shown) of the driving portion 640 may be inserted into the transverse guide 651. When the wheel 642 rotates, the guide protrusion may rotate, and thus, the guide protrusion may move left and right along the transverse guide 651. Therefore, the needle carrier 650 performs a linear motion between the distal end position and the proximal end position.

[0407] The transverse guide 651 is configured to be fastened to the button 620, and may be triggered only when the fastening with the button 620 is released. Since the fastening relationship between the first button 520 and the transverse guide 551 according to the 5-1st embodiment of the present disclosure can be applied to the fastening of the button 620 and the transverse guide 651 according to the present embodiment, the description of the 5-1st embodiment will replace the description in the present embodiment.

[0408] The longitudinal guide 653 is configured to be fastened to the safety button 630 and is movable only when the fastening with the safety button 630 is released. Fig.34 Detailed description.

[0409] The transmitter holder 660 is coupled to the transmitter (not shown) and is configured to allow the transmitter to perform linear movement from the distal position to the proximal position. The transmitter holder 660 is pressed from the distal position to the proximal position by the longitudinal guide 650, and the transmitter holder 660 moves only in the direction from the distal position to the proximal position.

[0410] Fig.34 For along Fig.32 A cross-sectional view taken along line II' in FIG. 1 and an enlarged view thereof.

[0411] See also Fig.34 The safety pin 630 may include a gripping portion 631 , a first pin 632 , and a second pin 633 .

[0412] The grip portion 631 is a portion gripped by a user.

[0413] The first pin 632 protrudes from the gripping portion 631 and preferably has a thin pin shape.

[0414] The second pin 633 protrudes from the gripping portion 631 and is disposed below the first pin 632. In this case, the directions in which the first pin 632 and the second pin 633 protrude are the same.

[0415] The first pin 632 and the second pin 633 are inserted into one surface of the housing 610 , and triggering is prevented by the first pin 632 and the second pin 833 .

[0416] The hook 634 may be formed on the end of the second pin 633. The hook 634 is hung on the end of the second pin hole 612, so that the safety pin 630 can be prevented from being removed from the applicator 600 due to external impact, etc. At the same time, an inclined surface is formed on the hook 634 in the direction in which the safety pin 630 is removed from the applicator 600. Therefore, the safety pin 630 can be removed from the applicator 600 only when the safety pin 630 is pulled by a certain force or more. In other words, the hook 634 may be coupled to the second pin hole 612 in a snap-fit ​​manner.

[0417] The housing 610 may include a first pin hole 611 , a second pin hole 612 , a spring mounting portion 613 , and a first pin groove 614 .

[0418] The first pin hole 611 is a hole formed in the outer circumferential surface of the housing 610 , and the first pin 632 may be inserted into the first pin hole 611 .

[0419] The needle carrier 650 may include a first pin through hole 652 .

[0420] A first pin through hole 652 is formed at the center of the lateral guide 651 of the needle carrier 650 , and the first pin 632 may penetrate the needle carrier 650 through the first pin through hole 652 .

[0421] The spring mounting portion 613 is a structure for supporting the spring 641 and may have an overall boss shape. A first pin groove 614 is formed in a flange portion of the spring mounting portion 613 .

[0422] The first pin hole 611, the first pin through hole 652 and the first pin groove 614 have a circular shape with the same diameter and are arranged axially. Therefore, the first pin 632 allows the housing 610, the needle carrier 650 and the driving part 640 to be fixed at one time.

[0423] Meanwhile, in a state where the first pin 632 is inserted, the end of the first button 620 contacts the first pin 632. Therefore, as long as the first pin 632 is inserted, the first button 620 is not pressed.

[0424] The second pin hole 612 is a hole formed in the outer peripheral surface of the housing 610 , and the second pin 633 is inserted into the second pin hole 612 , which is formed below the first pin hole 611 .

[0425] In the applicator 600 according to the 6-1st embodiment, when the safety pin 630 is inserted, the pressing of the button 620 can be prevented, and the rotation of the driving part 640 and the linear movement of the needle carrier 650 can also be prevented.

[0426] Furthermore, by using the hook 634 of the safety pin 630, the safety pin can be prevented from falling off due to external impact, thereby further ensuring safety.

[0427] 8. Example 6-2

[0428] Fig.35 A perspective view of an applicator according to Embodiment 6-2 of the present disclosure

[0429] Fig.35 (a) shows the state where the gripping portion 631' is unfolded, and Fig.35 (b) shows a state where the gripping portion 631' is folded.

[0430] See also Fig.35 , the applicator 600' according to the 6-2 embodiment of the present invention includes all or part of a housing 610', a button 620' and a safety pin 630'.

[0431] The housing 610' and the button 620' according to the 6-2 embodiment have the same structure, shape and function as the housing 610 and the button 620 according to the 6-1 embodiment, and therefore, the description thereof will be replaced by the description according to the 6-1 embodiment.

[0432] The safety pin 630' according to the 6-2nd embodiment has a gripping portion 631' having two structures, and the gripping portion 631' can be expanded or collapsed. The gripping portion 631' is expanded so that the entire volume of the applicator 600' can be reduced, thereby reducing the packaging material.

[0433] Fig.36 A cross-sectional perspective view of an applicator according to the 6-2 embodiment of the present disclosure

[0434] See also Fig.36 According to the 6-2 embodiment of the present disclosure, the safety pin 630' may further include a first pin 632', a second pin 633', a hook 634' and a support pin 635'.

[0435] The first pin 632 ′, the second pin 633 ′ and the supporting pin 635 ′ are sequentially disposed along the height direction of the housing 610 ′.

[0436] The first pin 632 ′ is inserted into the first pin hole 611 ′, the second pin 633 ′ is inserted into the second pin hole 612 ′, and the supporting pin 635 ′ is inserted into the supporting pin hole 613 ′.

[0437] The structure, shape and function of the first pin 632', the second pin 633' and the hook 634' are the same as those of the first pin 632, the second pin 633 and the hook 634 according to the 6-1 embodiment, so their description will be replaced by the description of the 6-1 embodiment.

[0438] In a state where the safety pin 630' is inserted into the housing 610', the support pin 635' contacts the lower surface of the transmitter, thereby preventing the transmitter and the transmitter holder from moving to the proximal position.

[0439] 9. Seventh embodiment

[0440] Fig.37 is a perspective view of an applicator according to a seventh embodiment of the present disclosure.

[0441] See also Fig.37, the applicator 700 according to the seventh embodiment of the present disclosure includes a shell 710. The shell 710 is configured to be grasped by the user and preferably has a hollow cylindrical shape. In addition, the middle of the shell 710 may have a concave shape so that the user can grasp the entire shell 710. At the same time, the applicator 700 according to the seventh embodiment of the present disclosure operates in an automatic triggering method, which is different from the above-mentioned first to fourth embodiments. By this method, the applicator 500 is automatically triggered when a button is pressed instead of a direct press by the user.

[0442] To this end, the applicator 700 also includes a button 720 .

[0443] The button 720 is disposed on the upper surface of the housing 710 and is configured to be pressed downward.

[0444] Fig.38 The interior of an applicator according to a seventh embodiment of the present disclosure is shown.

[0445] See also Fig.38 , an applicator 700 according to the seventh embodiment of the present disclosure includes all or part of a cover 730 , a driving portion 740 , a needle carrier 750 , and a transmitter holder 760 .

[0446] The cover 730 is formed so that at least a portion of the cover 730 can be inserted through an opening formed in the bottom of the housing 710. The cover 730 is configured to protect the interior of the applicator 700 from external contaminants before the user uses the applicator 700. To this end, preferably, the maximum diameter of the cover 730 is equal to or slightly larger than the diameter of the opening formed in the bottom of the housing 710.

[0447] Although the cover 730 may be formed of one of acrylonitrile-butadiene-styrene copolymer (ABS) resin, polycarbonate (PC) resin, and polyethylene (PE) resin, any material commonly used for medical devices such as applicators may be used without limitation. In one example, PC resin and ABS resin may be combined with each other and used, but this may be appropriately changed by the designer's choice.

[0448] The cover 730 may include a support rod 731 and a sealing portion 732. The support rod 731 is a configuration that directly contacts the emitter and supports the emitter and the emitter holder 760.

[0449] The sealing portion 732 is configured to seal an opening formed at the bottom of the housing 710 .

[0450] The driving portion 740 is configured to linearly move the needle carrier 750 and the needle (not shown) between the distal position and the proximal position in response to the pressing of the button 720. To this end, the driving portion 740 may include a wheel 741. Meanwhile, the wheel 741 according to the seventh embodiment has the same configuration, shape, and function as the wheel 542 of the applicator 500 according to the 5-1 embodiment, and therefore, the description thereof will be replaced by the description of the 5-1 embodiment.

[0451] The needle carrier 750 is configured to perform linear motion within the housing 710. In this case, the linear motion of the needle carrier 750 may be caused by the rotational motion of the driving portion 740.

[0452] The transmitter holder 760 is coupled to the transmitter (not shown) and is configured to allow the transmitter to perform a linear motion from the distal position to the proximal position. The transmitter holder 760 is pressed from the distal position to the proximal position by the needle carrier 750. At the same time, the transmitter holder 760 moves only in the direction from the distal position to the proximal position.

[0453] Fig.38 (a) shows the state before the cover 730 is removed, Fig.38 (b) shows a state where the cover 730 has been removed.

[0454] See also Fig.38 (a), the cover 730 supports the transmitter holder 760 in the direction toward the distal end position. Therefore, a configuration capable of linear motion is achieved, that is, the needle carrier 760 is also supported in the direction toward the distal end position.

[0455] See also Fig.38 (b), when the cover 730 is removed, the needle carrier 750 and the transmitter holder 760 can be slightly lowered toward the proximal position. In this state, the user can press the button 720, and the applicator 700 is ready to be triggered.

[0456] Fig.39 4 is a front view of a needle carrier according to a seventh embodiment of the present disclosure.

[0457] See also Fig.39 The needle carrier 750 of the present disclosure includes a transverse guide 751 , an insertion groove 752 , and a longitudinal guide 753 .

[0458] The guide protrusion of the driving portion 740 (see Fig.40 The guide protrusion 742 of the wheel 741 can be inserted into the transverse guide member 751. When the wheel 741 rotates, the guide protrusion 742 rotates, and thus, the guide protrusion 744 can move left and right along the transverse guide member 751. Therefore, the needle carrier 750 performs a linear motion between the distal end position and the proximal end position.

[0459] The insertion groove 752 is formed at the bottom of the lateral guide 751 , and preferably has a width allowing the guide protrusion 742 to pass through the insertion groove 752 .

[0460] The longitudinal guide 753 extends from one surface of the transverse guide 751 in a direction from a distal position to a proximal position. The longitudinal guide 753 may be coupled to the needle and fix the needle.

[0461] Fig.40 A configuration for preventing the applicator from being triggered according to a seventh embodiment of the present disclosure is shown.

[0462] Fig.40 (a) shows the state before the cover 730 is removed, Fig.40 (b) shows a state where the cover 730 has been removed.

[0463] See also Fig.40 (a), since the needle carrier 750 is supported in the distal position before the cover 730 is removed, the needle carrier 750 moves slightly toward the distal position. Therefore, the guide protrusion 742 can be positioned above the insertion groove 752 of the needle carrier 750. Therefore, the transverse guide 751 does not move laterally. At the same time, due to the nature of the circular motion, the transverse movement of the guide protrusion 742 and the longitudinal movement are mutually constrained, and no transverse movement occurs, so that the longitudinal movement of the guide protrusion 742 is also restricted. Therefore, triggering can be prevented.

[0464] See also Fig.40 (b), when the cover 730 is removed, the structure for supporting the needle carrier 750 is removed, so that the needle carrier 750 moves slightly to the proximal position. The guide protrusion 742 is inserted into the interior of the lateral guide 751, thus allowing the lateral movement to occur.

[0465] Although the above description is merely an exemplary description of the technical spirit of the present embodiment, those skilled in the art will understand that various modifications and changes may be made to the present disclosure without departing from the basic features of the present embodiment. Therefore, the present embodiment is not intended to limit the technical spirit of the present embodiment, but to describe the technical spirit of the present embodiment. The scope of the technical spirit of the present embodiment is not limited by the present embodiment. The scope of protection of the present embodiment shall be interpreted by the following claims, and all technical spirits within the equivalent scope shall be interpreted as included within the scope of the rights of the present embodiment.

[0466] Explanation of Reference Symbols

[0467] 100, 200, 300, 400, 500, 600, 600', 700: Applicator

[0468] 110, 210, 410: handle

[0469] 120, 220, 420, 730: Cover

[0470] 130, 230: Support part

[0471] 140: Gear

[0472] 150, 260, 550, 550', 650, 750: needle carrier

[0473] 160: Needle holder

[0474] 170, 270, 362, 560, 560': needle

[0475] 180, 280, 380, 450, 570, 660, 760: Transmitter holder

[0476] 240: Crank

[0477] 250: Connecting rod

[0478] 310: Upper cover

[0479] 312: Lower cover

[0480] 330: Push cover

[0481] 340: Rotating guide

[0482] 350: Rotating Block

[0483] 370: Spring

[0484] 430: Cylindrical parts

[0485] 440: Piston

[0486] 520: First button

[0487] 530: Second button

[0488] 540, 540', 640, 740: drive unit

[0489] 620, 620', 720: Button

[0490] 630, 630': Safety pin

Claims

1. An applicator comprising: A hollow cylindrical shell having an opening formed at the bottom; A first button, which is disposed on the upper surface of the housing; a second button disposed on the outer peripheral surface of the housing; a needle carrier configured to be secured to the second button and to perform linear movement within the housing between a distal position and a proximal position; as well as A driving portion is configured to be fastened to the first button and to provide power for the linear movement of the needle carrier.

2. The applicator according to claim 1, wherein: The driving unit comprises: a coiled spring in a compressed state coupled to the inner peripheral surface of the housing; a wheel having one surface facing the spring and constrained by the rotation of the spring; an arc-shaped anti-trigger portion protruding from another surface of the wheel and formed along the circumference of the wheel; and a guide protrusion which protrudes from the other surface of the wheel and is disposed radially inward from the anti-trigger portion, Wherein, the needle carrier comprises: transverse guides; and A longitudinal guide is formed by one surface of the transverse guide and extends along the length direction of the housing.

3. The applicator according to claim 2, wherein: The first button includes: an extension portion protruding from a lower surface of the first button; and an engaging protrusion which protrudes from one surface of the extending portion toward the radially outer side of the first button and is configured to face the trigger prevention portion, and The engaging protrusion is disposed at a distance from the lower surface of the first button, and when the first button is pressed, the trigger prevention portion is disposed in a space between the engaging protrusion and the lower surface of the first button.

4. The applicator according to claim 2, wherein: The needle carrier comprises a hook-shaped protrusion protruding from a lateral surface of the longitudinal guide, and the second button comprises: an extension portion protruding from a lower surface of the second button and disposed toward a radially inner side of the housing; and a hook protruding from one surface of the extending portion toward the radially inner side of the second button and configured to face the hook-shaped protrusion; and The hook is disposed at a distance from the lower surface of the second button, and when the second button is pressed, the hook-shaped protrusion is disposed in a space between the hook and the lower surface of the second button.

5. The applicator of claim 2, wherein: The first button is configured to limit the rotation of the driving portion, and the second button is configured to limit the linear movement of the needle carrier, and when the first button and the second button are pressed simultaneously or sequentially, the driving portion rotates so that the needle carrier moves from the distal position to the proximal position.

6. The applicator according to claim 1, further comprising a transmitter holder, the transmitter holder being pressed by the needle carrier, moving from the distal position to the proximal position, and configured to hold a transmitter, in, The transmitter holder comprises: a transmitter support configured to surround at least a portion of the transmitter; and A pusher is rotatably mounted on the upper surface of the launcher holder.

7. The applicator according to claim 6, wherein: One end of the pusher is disposed outside the launcher holder, the other end of the pusher is disposed inside the launcher holder, and one end of the pusher protrudes from a lower surface of the launcher holder.

8. The applicator of claim 7, wherein: When the launcher holder is moved from the distal position to the proximal position by the needle carrier, one end of the pusher contacts the inner bottom of the housing, and the other end of the pusher presses the upper surface of the launcher.

9. The applicator of claim 6, wherein: The transmitter support and the transmitter are frictionally coupled to each other.

10. A sensor insertion device, comprising: a sensor, at least a portion of which is inserted into the body and configured to detect a body analyte; a transmitter configured to process information related to a body analyte acquired from the sensor; as well as an applicator configured to move the sensor and the transmitter from a proximal position to a distal position; Wherein, the applicator comprises: A hollow cylindrical shell having an opening formed at the bottom; A first button, which is disposed on the upper surface of the housing; a second button disposed on the outer peripheral surface of the housing; a needle carrier configured to be secured to the second button and to perform linear movement within the housing between a distal position and a proximal position; and A drive portion is configured to be fastened to the first button and provide power for the linear movement of the needle carrier.

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