Applicator and applicator assembly for transdermal sensors

Abstract

To provide an applicator and an applicator assembly for a transdermal sensor, which can be manufactured in an assembled state with a sensor unit including a transdermal sensor, minimizes additional work for a user to insert the transdermal sensor into the skin, and allows a user to conveniently insert the transdermal sensor into the skin. [Solution] The applicator according to the present invention is an applicator for inserting a sensor for measuring biological information into a user's skin, and includes an applicator body to which a base unit including a base unit housing and an adhesive portion provided on the base unit housing to be attached to the user's skin is detachably connected, a locking hook installed on the applicator body to engage with the base unit to maintain the base unit connected to the applicator body, an insertion unit installed on the applicator body to move a sensor unit including the sensor and a sensor unit housing in which the sensor is attached from a first position spaced apart from the base unit to a second position connected to the base unit, and insert the sensor into the user's skin, and a moving member installed on the applicator body movably from a third position to a fourth position, and biasing the locking hook to disengage from the base unit at the fourth position.

Description

Technical Field

[0001] The present invention relates to an applicator for a transdermal sensor, and more particularly, to a transdermal sensor applicator and an applicator assembly for inserting a transdermal sensor for measuring biological information into the skin of a user by inserting it into the skin of the user.

Background Art

[0002] Recently, with the development of medical technology, various medical devices that are attached to and used on the body of a user have been developed and sold. Medical devices used by adhering to the skin are usefully utilized to monitor biological information or perform treatment by adhering to the body of a chronic disease patient.

[0003] For example, chronic diseases such as diabetes require continuous management, and a medical device that adheres to the body to measure blood glucose is used to monitor the blood glucose of diabetic patients. Diabetes is characterized by almost no symptoms in the early stage, but as the disease progresses, specific symptoms such as excessive thirst, excessive eating, excessive urination, weight loss, general fatigue, skin itching, and wounds on the hands and feet that do not heal and persist appear. If diabetes progresses further, complications such as visual impairment, hypertension, kidney disease, stroke, periodontal disease, muscle cramps and neuralgia, and gangrene will occur. In order to diagnose such diabetes and manage it so as not to progress to complications, systematic blood glucose measurement and treatment must be carried out in parallel.

[0004] Many medical device manufacturers provide various types of blood glucose meters that can measure blood glucose for diabetic patients and people who have not progressed to diabetes but have been detected with more sugar in their blood than normal.

[0005] Blood glucose meters are of two types: one in which the user takes blood from the fingertip and performs blood glucose measurement in units of one time, and the other in which the meter adheres to the user's abdomen, arm, etc. and continuously performs blood glucose measurement.

[0006] In diabetic patients, blood sugar levels generally fluctuate between high and low, but the most critical situation arises when hypoglycemia occurs, potentially leading to loss of consciousness or, if left untreated for an extended period, death. Therefore, prompt detection of hypoglycemia is crucial for diabetic patients, but blood glucose meters that measure blood glucose intermittently have limitations in accurately detecting it.

[0007] Recently, to overcome these limitations, continuous glucose monitoring systems (CGMS) have been developed and are being used. These systems involve inserting a needle-shaped transdermal sensor into areas such as the abdomen or arm, where pain is relatively reduced, to minimize the discomfort and aversion of blood sampling for the user, and then continuously measure blood glucose levels.

[0008] A continuous blood glucose monitoring system consists of a sensor unit including a transdermal sensor that is inserted into the user's skin to measure blood glucose within the body, a transmitter for sending the blood glucose values ​​measured by the transdermal sensor, and a terminal that outputs the transmitted blood glucose values. [Overview of the project] [Problems that the invention aims to solve]

[0009] Medical systems utilizing transdermal sensors are manufactured in a wide variety of forms by different manufacturers, and their usage methods also vary. Currently, most systems are manufactured and distributed using a method in which a single-use sensor unit is attached to the body via an applicator. Users must perform many steps to attach the sensor unit to their skin using the applicator, and after the sensor unit is attached to the body, they must perform various subsequent procedures, such as directly removing the needle inserted into the skin along with the transdermal sensor.

[0010] For example, the user must unpack the single-use sensor unit and accurately attach it to the applicator, then activate the applicator with the sensor unit inserted to attach it to the skin. After the sensor unit is attached, the user must remove the needle inserted into the skin and perform other inconvenient steps such as connecting the transmitter to the sensor unit.

[0011] The present invention was devised in consideration of the points described above, and aims to provide a transdermal sensor applicator and applicator assembly that can be manufactured with the sensor unit including the transdermal sensor already assembled, minimizing the additional work required of the user to insert the transdermal sensor into the skin, and allowing the user to conveniently insert the transdermal sensor into the skin.

[0012] Another objective of the present invention is to provide an applicator and applicator assembly in which the coupling structure between the base unit, which is detachably coupled to the applicator while separated from the sensor unit, and the applicator is improved. [Means for solving the problem]

[0013] An applicator according to the present invention for solving the aforementioned objectives is an applicator for inserting a sensor for measuring biological information into the skin of a user, comprising: an applicator body to which a base unit including a base unit housing and an adhesive portion provided on the base unit housing so as to adhere to the user's skin is detachably coupled; a locking hook installed on the applicator body to engage with the base unit in order to maintain the base unit coupled to the applicator body; an insertion unit installed on the applicator body to move a sensor unit including the sensor and a sensor unit housing to which the sensor is mounted from a first position separated from the base unit to a second position coupled to the base unit so as to insert the sensor into the user's skin; and a movable member installed on the applicator body so as to be movable from a third position to a fourth position, which deflects the locking hook to disengage from the base unit at the fourth position.

[0014] The moving member can move in a direction intersecting the direction in which the sensor unit moves from the first position to the second position.

[0015] The insertion unit includes a plunger that is movable together with the sensor unit from a first position to a second position, a needle that is detachably coupled to the sensor unit so as to be inserted into the user's skin together with the sensor, a carrier that is mounted on the plunger and coupled to the needle, and a plunger driver that provides a moving force to the plunger in the direction of moving from the first position to the second position, wherein the plunger is constrained to move in contact with the moving member located from the first position to the third position, and can move to the second position when the moving member moves to the fourth position.

[0016] The applicator body may include a base frame having a base portion that contacts the user's skin, a column portion that protrudes from the base portion and houses the plunger, a stage positioned above the base portion to support the moving member, and a middle frame having a middle frame opening formed in the middle of the stage into which the column portion is inserted.

[0017] The applicator according to the present invention may include an elastic member that applies an elastic force to the moving member so that the moving member moves from the third position to the fourth position; a stopper that restrains the movement of the moving member when the elastic member is elastically deformed; and an actuation member that can be operated by a user to release the stopper so that the moving member moves due to the elastic member.

[0018] The locking hook is pivotally coupled to the applicator body, and the movable member can move from the third position to the fourth position to rotate the locking hook in a direction that disengages it from the base unit.

[0019] The locking hook includes a pivot portion coupled to the applicator body, a hook portion protruding from the pivot portion to engage with the base unit, and a load protruding from the pivot portion to engage with the movable member, wherein the movable member is positioned to move in a direction intersecting the direction in which the sensor unit moves from the first position to the second position, and the movable member is provided with a guide portion that engages with the load in a form inclined with respect to the direction of movement of the movable member, the guide portion moving while engaged with the load can rotate the locking hook.

[0020] The applicator according to the present invention may include a moving member driver for moving the moving member from the third position to the fourth position.

[0021] The moving member driver may include an elastic member that applies elastic force to the moving member.

[0022] The applicator according to the present invention may include a stopper that restrains the movement of the moving member while the elastic member is elastically deformed, and an actuation member that can be operated by a user to release the stopper so that the moving member moves due to the elastic member.

[0023] On the other hand, an applicator according to another aspect of the present invention for solving the aforementioned objectives is an applicator for inserting a sensor for measuring biological information into the skin of a user, comprising: a sensor; a base unit housing; an applicator body to which a body attachment unit including an adhesive portion provided on the base unit housing to be attached to the user's skin is detachably coupled; a locking hook installed on the applicator body to engage with the base unit housing to maintain the base unit housing coupled to the applicator body; a needle installed on the applicator body to move from a first position to a second position to be inserted into the user's skin together with the sensor; and a movable member installed on the applicator body to move from a third position to a fourth position, deflecting the locking hook to disengage from the base unit housing in the fourth position.

[0024] On the one hand, the applicator assembly according to the present invention for solving the above-described problems includes an applicator body that can contact the user's skin, a sensor unit including a sensor and a sensor unit housing on which the sensor is mounted, a base unit housing, and an adhesive portion provided on the base unit housing so as to adhere to the user's skin, and a base unit that is separated from the sensor unit and detachably coupled to the applicator body, an insertion unit installed on the applicator body for moving the sensor unit from a first position separated from the base unit to a second position where the sensor is inserted into the user's skin and coupling it to the base unit, a locking hook installed on the applicator body so as to engage with the base unit to maintain the base unit in a state of being coupled to the applicator body, and a moving member installed on the applicator body so as to be movable from a third position to a fourth position, and deflecting the locking hook to disengage it from the base unit at the fourth position.

Advantages of the Invention

[0025] According to the present invention, by manufacturing the sensor unit in a state assembled in the applicator, the additional work of the user for attaching the sensor unit to the user's skin is minimized, and the sensor unit can be attached to the user's skin simply by operating the applicator.

[0026] Also according to the present invention, the base unit is stably fixed to the applicator body so that the base unit does not easily separate from the applicator body before the sensor unit is coupled to the base unit, and the base unit can be smoothly separated from the applicator body after the sensor unit is coupled to the base unit.

Brief Description of the Drawings

[0027] [Figure 1] It is a perspective view showing an applicator assembly according to an embodiment of the present invention. [Figure 2] A drawing showing the state where the body-attached unit is attached to the user's skin. [Figure 3] A perspective view showing the body-attached unit. [Figure 4] A drawing showing the state where the protective sheet is attached to the adhesive layer of the sensor unit. [Figure 5] A drawing showing the state after the protective sheet is separated from the adhesive layer of the sensor unit. [Figure 6] A drawing showing the state before the sensor unit and the base unit are combined. [Figure 7] A cross-sectional view taken along the line I-I of FIG. 1. [Figure 8] A cross-sectional view taken along the line II-II of FIG. 1. [Figure 9] A perspective view showing the applicator according to an embodiment of the present invention disassembled. [Figure 10] A perspective view showing the needle assembly of the applicator according to an embodiment of the present invention. [Figure 11] A perspective view showing a partial configuration of the applicator according to an embodiment of the present invention. [Figure 12] A drawing showing the state where the operating member of the applicator according to an embodiment of the present invention deflects so that the stopper disengages from the moving member. [Figure 13] A side view showing the state where the moving member of the applicator according to an embodiment of the present invention is fixed at the third position by the stopper. [Figure 14] A plan view showing the state where the moving member of the applicator according to an embodiment of the present invention is fixed at the third position by the stopper. [Figure 15] A side view showing the state where the moving member of the applicator according to an embodiment of the present invention moves to the fourth position and separates the protective sheet of the sensor unit. [Figure 16] A plan view showing the state where the moving member of the applicator according to an embodiment of the present invention has moved to the fourth position. [Figure 17] This is a drawing showing the locking hook of an applicator according to one embodiment of the present invention engaged with the base unit. [Figure 18] This is a drawing showing an applicator locking hook according to one embodiment of the present invention connected to the guide portion of a movable member. [Figure 19] This is a drawing showing an applicator locking hook according to one embodiment of the present invention connected to the guide portion of a movable member. [Figure 20] This diagram shows the process by which the sensor of a sensor unit is inserted into the user's skin by an applicator according to one embodiment of the present invention. [Figure 21] This diagram shows the process by which the sensor of a sensor unit is inserted into the user's skin by an applicator according to one embodiment of the present invention. [Figure 22] This diagram shows the process by which the sensor of a sensor unit is inserted into the user's skin by an applicator according to one embodiment of the present invention. [Figure 23] This diagram shows the process by which the sensor of a sensor unit is inserted into the user's skin by an applicator according to one embodiment of the present invention. [Figure 24] This diagram shows the process by which the sensor of a sensor unit is inserted into the user's skin by an applicator according to one embodiment of the present invention. [Figure 25] This diagram shows the process by which the sensor of a sensor unit is inserted into the user's skin by an applicator according to one embodiment of the present invention. [Modes for carrying out the invention]

[0028] The transdermal sensor applicator and applicator assembly according to the present invention will be described in detail below with reference to the drawings.

[0029] Figure 1 is a perspective view showing an applicator assembly according to one embodiment of the present invention.

[0030] An applicator assembly 10 according to one embodiment of the present invention includes a sensor unit 100 equipped with a sensor 110 that is inserted into the user's skin to measure biological information, a base unit 200 that is coupled with the sensor unit 100 to form a body attachment unit 20, and an applicator 30 for inserting the body attachment unit 20 into the user's skin. The applicator assembly 10 is provided to the user with the sensor unit 100 and the base unit 200 attached separately to the applicator 30. The sensor unit 100 and the base unit 200 are automatically assembled by the action of the applicator 30 and attached to the user's skin.

[0031] As shown in Figure 2, the body-attachment unit 20 is attached to the user's skin by the applicator 30 to measure biological information and can wirelessly transmit the measurement data to an external terminal 5. The external terminal 5 can be a variety of devices capable of receiving the measurement data from the body-attachment unit 20, such as the user's mobile device, a dedicated medical device, a PC, or a server. The biological information that the body-attachment unit 20 can measure is not limited to specific types. For example, the body-attachment unit 20 can periodically measure the user's blood glucose and transmit the blood glucose measurement information to the external terminal 5.

[0032] As shown in Figure 3, the body-attached unit 20 includes a sensor unit 100 for measuring the user's biological information and a base unit 200 that is attached to the user's skin and coupled with the sensor unit 100. The base unit 200 is configured with electronic components installed inside. The base unit 200 is electrically connected to the sensor unit 100 and can process the biological information measured by the sensor unit 100 and transmit it to the external terminal 5.

[0033] As shown in Figures 4 to 6, the sensor unit 100 includes a sensor 110 inserted into the user's skin, a sensor unit housing 120 to which the sensor 110 is coupled, a sensor unit electrical contact portion 146 coupled to the sensor unit housing 120 and electrically connected to the sensor 110, an adhesive layer 155 provided on the sensor unit housing 120 so as to adhere to the base unit 200, and a protective sheet 160 covering the adhesive layer 155.

[0034] A portion of the sensor 110 is located inside the sensor housing 120 and is electrically connected to the sensor unit electrical contact portion 146. The sensor 110 also has an insertion portion 116 that protrudes from the sensor housing 120 and is inserted into the user's skin.

[0035] The sensor unit housing 120 has a housing opening formed so as to penetrate the thickness direction of the sensor unit housing 120 into which a portion of the sensor 110 and a needle 450 for inserting the sensor 110 into the user's skin are inserted. The sensor unit housing 120 includes a housing body 142 and a boss 127 protruding from one side of the housing body 142. The housing opening is formed so as to penetrate the housing body 142 and the boss 127. The housing body 142 is shaped to fit into a base unit recess 213 of the base unit 200. The housing body 142 includes a body portion 143 having the boss 127 and a cover portion 144 that is wider than the body portion 143. The sensor unit housing 120 is not limited to the illustrated configuration and can be modified in various other configurations into which the sensor 110 is mounted and coupled to the base unit 200.

[0036] The sensor unit electrical contact portion 146 is positioned in the sensor unit housing 120 so as to be electrically connected to the sensor 110. The sensor unit electrical contact portion 146 may include a plurality of terminal portions 147 for transmitting electrical signals. Part of the sensor unit electrical contact portion 146 is exposed on the surface of the sensor unit housing 120 so as to be electrically connected to the sensor 110 and the base unit electrical contact portion 225 of the base unit 200. The sensor unit electrical contact portion 146 is optional, in which case the base unit electrical contact portion 225 directly contacts the sensor 110 and is electrically connected to it.

[0037] The adhesive layer 155 is placed on the surface of the sensor unit housing 120. The adhesive layer 155 is made in a form that both sides are adhesive. One side of the adhesive layer 155 is bonded to the surface of the sensor unit housing 120, and the other side of the adhesive layer 155 is covered with a protective sheet 160. The adhesive layer 155 is bonded to the base unit 200 after the protective sheet 160 is removed. An adhesive layer hole 156 is formed in the middle portion of the adhesive layer 155 so as to penetrate the adhesive layer 155 in the thickness direction. The sensor unit electrical contact portion 146 can contact the base unit electrical contact portion 225 of the base unit 200 through the adhesive layer hole 156. Therefore, the adhesive layer 155 seals the space between the sensor unit electrical contact portion 146 and the base unit electrical contact portion 225, preventing moisture and foreign matter from flowing into the electrical connection between the sensor unit 100 and the base unit 200. An adhesive layer opening 157 is formed on one side of the adhesive layer 155 so as to penetrate the adhesive layer 155 in the thickness direction. The adhesive layer 155 is attached to the housing base 121 such that the sensor unit electrical contact portion 146 is located inside the adhesive layer hole 156 and the boss 127 is inserted into the adhesive layer opening 157.

[0038] The protective sheet 160 covers and protects the adhesive layer 155. The protective sheet 160 is made of a material that adheres detachably to the adhesive layer 155. If the adhesive layer 155 is left exposed to air for a long period of time, its adhesive properties may deteriorate. By covering the adhesive layer 155, the protective sheet 160 prevents the deterioration of the adhesive properties of the adhesive layer 155 and facilitates the handling of the sensor unit 100 by workers during the manufacturing process of the sensor unit 100 and the assembly process of the sensor unit 100 onto the applicator 30. A portion of the protective sheet 160 is attached to the removing unit 500 of the applicator 30.

[0039] The sensor unit 100 is attached to the applicator 30 with the protective sheet 160 attached to the adhesive layer 155. The protective sheet 160 is separated from the adhesive layer 155 by the removing unit 500 of the applicator 30 before the sensor 110 is inserted into the user's skin. With the protective sheet 160 separated, the sensor unit 100 moves towards the base unit 200 and is coupled to the base unit 200.

[0040] As shown in Figure 6, the base unit 200 includes a base unit housing 210 to which the sensor unit 100 is coupled, and electronic components installed inside the base unit housing 210. The electronic components may include a base unit electrical contact portion 225 that contacts the sensor unit electrical contact portion 146 of the sensor unit 100, a circuit board, a battery, a processor chip for processing signals, and a communication chip for wireless communication with the external terminal 5.

[0041] The base unit housing 210 includes an insertion hole 211 through which the sensor 110 and needle 450 can pass, and a mounting portion 212 to which the sensor unit housing 120 is connected. The mounting portion 212 includes a base unit recess 213 and a contact surface 216 provided inside the base unit recess 213. The insertion hole 211 is positioned inside the base unit recess 213 in a manner that the boss 127 of the sensor unit 100 fits and connects. The contact surface 216 is flat so that the adhesive layer 155 of the sensor unit 100 is stably bonded. The base unit recess 213 includes a first recess 214 connected to the insertion hole 211, and a second recess 215 located further from the insertion hole 211 than the first recess 214 and connected to the first recess 214. The second recess 215 is wider than the first recess 214. The first recess 214 is shaped to correspond to the body portion 143 of the sensor unit housing 120, and the second recess 215 is shaped to correspond to the cover portion 144 of the sensor unit housing 120. Therefore, the sensor unit housing 120 can be fitted and coupled to the base unit recess 213, maintaining a stable connection with the base unit housing 210. As a result of the sensor unit housing 120 being stably fitted and coupled to the base unit housing 210, moisture and foreign matter cannot easily flow into the gap between the sensor unit housing 120 and the base unit housing 210. A housing groove 217 is formed on the outer edge of the base unit housing 210. A portion of the locking hook 325 provided on the applicator 30 is inserted into the housing groove 217.

[0042] The base unit electrical contact portion 225 is positioned in the mounting portion 212 and contacts the sensor unit electrical contact portion 146 of the sensor unit 100 when the sensor unit 100 is coupled to the base unit 200. The base unit electrical contact portion 225 is installed in the base unit housing 210 such that a portion of it is exposed in the base unit recess 213. The base unit electrical contact portion 225 may include a plurality of terminal portions 226 for transmitting electrical signals. The terminal portions 226 can electrically connect the sensor unit electrical contact portion 146 to the substrate 223 by contacting the terminal portion 147 of the sensor unit 100.

[0043] The specific configuration, number, and position of the base unit electrical contacts provided on the base unit 200 for electrically connecting the sensor 110 and the base unit 200 can be varied in many ways. Furthermore, the configuration for electrically connecting the sensor 110 and the base unit 200 is not limited to that shown in the figures and can be varied in many ways.

[0044] The surface of the base unit housing 210 is provided with an adhesive portion 230. The adhesive portion 230 is attached to the surface of the lower housing 219, allowing the base unit housing 210 to adhere to the user's skin. The adhesive portion 230 is covered and protected by a protective sheet. The protective sheet covering the adhesive portion 230 is removed during the process of attaching the base unit 200 to the user's skin.

[0045] The sensor unit 100 and the base unit 200 are placed on the applicator 30 in a separated state and, as the applicator 30 operates to insert the sensor 110 into the user's skin, they connect to each other to form the body-attachment unit 20. The sensor unit 100 is attached to the applicator 30 with the needle 450 attached and moves toward the base unit 200 with the needle 450 attached, connecting with the base unit 200. After the sensor unit 100 connects with the base unit 200, the needle 450 separates from the sensor unit 100, leaving only the body-attachment unit 20 on the user's skin.

[0046] Referring to Figures 7 to 19, the applicator 30 operates with the sensor unit 100 and base unit 200 attached, connecting the sensor unit 100 and base unit 200, and attaching the body attachment unit 20, to the user's skin. The sensor unit 100 and base unit 200 are separated from each other and attached to the applicator 30. After attaching the body attachment unit 20 to the user's skin, the applicator 30 separates from the body attachment unit 20, and the body attachment unit 20 remains attached to the user's skin by the adhesive portion 230.

[0047] The applicator 30 includes an applicator body 300 to which the base unit 200 is detachably coupled, an insertion unit 400 for moving the sensor unit 100 to insert the sensor 110 into the user's skin, and a removing unit 500 for separating the protective sheet 160 of the sensor unit 100. The insertion unit 400 can move the sensor unit 100 to a second position in which it is coupled to the base unit 200 at a first position approximately a predetermined distance away from the base unit 200. The sensor unit 100 and the base unit 200 are coupled at the second position to form a body attachment unit 20.

[0048] The applicator body 300 includes a base frame 310 on which the insertion unit 400 is installed, a middle frame 330 positioned on the base frame 310 and on which the removal unit 500 is installed, and a top case 350 coupled to the middle frame 330 and covering the top of the middle frame 330.

[0049] The base frame 310 includes a frame base portion 311 having a bottom portion 312 that can come into contact with the user's skin, and a column portion 318 that protrudes from the frame base portion 311 and houses the sensor unit 100 and the insertion unit 400. The bottom portion 312 of the frame base portion 311 is provided with a recess 313 into which the base unit 200 is mounted. The base unit 200 is detachably coupled to the recess 313 so that its adhesive portion 230 faces the user's skin, and is positioned in a second position separated from the sensor unit 100. Through holes 314 are formed in the frame base portion 311 so as to penetrate the frame base portion 311 in the thickness direction. A pair of through holes 314 are provided on both sides of the column portion 318, with the column portion 318 in between. A support portion 316 is provided at the top of the through holes 314 to which a locking hook 325 is coupled.

[0050] Slits 319 are formed on both sides of the column portion 318 in a direction parallel to the direction of movement of the sensor unit 100. A release portion 320 is provided in the middle of the slits 319. The release portion 320 is a part that a portion of the carrier 422 of the insertion unit 400 can contact as the carrier 422 moves toward the base unit 200. The release portion 320 disengages the carrier 422 from the plunger 410. The specific operation of the release portion 320 will be described later. A detent portion 321 is provided on one side of the column portion 318 to limit the travel distance of the plunger 410. A retention portion 322 is provided inside the column portion 318. The retention portion 322 supports the plunger driver 418, which provides the force to move the plunger 410.

[0051] A locking hook 325 is coupled to the support portion 316 of the base frame 310, which engages with the base unit 200 mounted in the recess 313. The locking hook 325 engages with the base unit 200, securing it so that it does not separate from the recess 313. The locking hook 325 disengages from the base unit 200 after the body attachment unit 20 has been attached to the user's skin. The locking hook 325 is pivotally coupled to the support portion 316. The locking hook 325 includes a pivot portion 326 that is rotatably coupled to the support portion 316, a hook portion 327 connected to the pivot portion 326, and a load 328 protruding from the pivot portion 326. The hook portion 327 can be inserted into the housing groove 217 of the base unit 200 and engaged with the base unit 200. The hook portion 327 protrudes from one side of the pivot portion 326, and the load 328 protrudes from the other side of the pivot portion 326. The hook portion 327 is inserted into the through-hole 314 of the base frame 310, and a portion of it is located within the recess 313 of the base frame 310. The locking hook 325 is released from the base unit 200 in conjunction with the movable member 510 of the removing unit 500. The more specific operation of the locking hook 325 will be described later.

[0052] The specific configuration of the base frame 310 is not limited to what is shown in the illustration and can be modified in various ways.

[0053] The middle frame 330 includes an outer frame 331 which is coupled to the base frame 310, a stage 333 positioned inside the outer frame 331, and a support base 339 protruding from the stage 333. The outer frame 331 is equipped with a hook portion 332 which can engage with the top case 350. The stage 333 is positioned on the frame base portion 311. A middle frame opening 334 is provided in the middle of the stage 333 into which a column portion 318 is inserted. Through holes 335 are formed on both sides of the middle frame opening 334 into which the load 328 of the locking hook 325 is inserted. The load 328 passes through the through holes 335 and protrudes onto the stage 333. The stage 333 is equipped with a guide rail 336 and a fixing projection 337. The guide rail 336 serves to guide the moving member 510 to move linearly. The fixing projection 337 supports a moving member driver 522 which provides moving force to the moving member 510. The support base 339 is equipped with an elastically deformable stopper 341 for restraining the movement of the movable member 510.

[0054] An operating member 345 capable of operating the insertion unit 400 and the removal unit 500 is installed on the support base 339. The operating member 345 includes a button portion 346, a pressure projection 347 protruding from the button portion 346 so as to contact the stopper 341, and a pivot portion 348 inserted into the coupling hole 342 of the support base 339. The operating member 345 can rotate around the pivot portion 348. When the user presses the button portion 346, the operating member 345 rotates, and the pressure projection 347 can pressurize the stopper 341. At this time, the stopper 341 is elastically deformed and disengaged from the moving member 510. In addition to the illustrated configuration, the operating member 345 can be modified in a variety of other configurations that are installed on the applicator body 300 so as to be operated by a user and capable of operating the insertion unit 400 and the removal unit 500.

[0055] The specific configuration of the middle frame 330 is not limited to that shown in the illustration and can be modified in various ways. In another exemplary embodiment, the middle frame 330 is integrated with the base frame 310.

[0056] The top case 350 is connected to the middle frame 330 and covers the upper parts of the middle frame 330 and the base frame 310. One side of the top case 350 is provided with a top case opening 351 to which the support base 339 of the middle frame 330 is connected. The top case 350 is provided with a connecting hole 352, and is connected to the middle frame 330 by the hook portion 332 of the middle frame 330 engaging with the connecting hole 352.

[0057] The specific configuration of the top case 350 is not limited to what is shown in the diagram and can be modified in various ways. Furthermore, the method of connecting the top case 350 to the middle frame 330 can also be modified in various ways.

[0058] The insertion unit 400 is installed on the applicator body 300 so as to work in conjunction with the moving member 510 of the removing unit 500, moving the sensor unit 100 from a first position to a second position and allowing the sensor 110 to be inserted into the user's skin. The insertion unit 400 includes a plunger 410 that is movably installed on the middle frame 330, and a needle assembly 421 that includes a needle 450 that moves together with the plunger 410 and is inserted into the user's skin.

[0059] The plunger 410 is installed inside the column 318 so as to be movable from a first position to a second position. A plunger hook 411 is provided on one side of the plunger 410 to limit the range of movement of the plunger 410. The plunger hook 411 protrudes from the plunger 410 and can restrict the movement of the plunger 410 by contacting the detent portion 321 of the column 318 when the plunger 410 moves to the second position. A plunger projection 412 is provided on the other side of the plunger 410. The plunger projection 412 protrudes from the plunger 410 so as to engage with the movable member 510. The plunger 410 is fixed in the first position when the plunger projection 412 engages with the movable member 510, and can move to the second position when the plunger projection 412 is disengaged from the movable member 510.

[0060] A pair of slits 413 are formed on both sides of the plunger 410, parallel to the direction of movement of the sensor unit 100. A detent portion 414 is provided in the middle of the slits 413, into which the latch portion 437 of the carrier 422 can engage. When the latch portion 437 is engaged with the detent portion 414, the carrier 422 moves together with the plunger 410 and cannot move relative to the plunger 410.

[0061] The plunger 410 is equipped with a retention section 415 and a fixing section 416 inside. The retention section 415 supports the plunger driver 418. The fixing section 416 is coupled to a needle release driver 480 that provides movement force to the carrier 422.

[0062] The plunger 410 moves by receiving a moving force from the plunger driver 418. The plunger driver 418 includes an elastic member 419 that applies an elastic force to the plunger 410 in the direction of moving it from a first position to a second position. One end of the elastic member 419 is in contact with the retention portion 322 of the column portion 318 and the other end is in contact with the retention portion 415 of the plunger 410. The plunger 410 is fixed in the first position by engaging with the moving member 510 with the elastic member 419 elastically deformed. The plunger driver 418 can be modified with a variety of other configurations that can provide a moving force to the plunger 410, in addition to the configuration that includes the elastic member 419 in the form of a coil spring.

[0063] The needle assembly 421 includes a carrier 422 to which the sensor unit 100 is detachably coupled, and a needle 450 coupled to the carrier 422 so as to penetrate the sensor unit 100. The needle 450, coupled with the sensor unit 100, advances together with the sensor unit 100 from a first position to a second position and is inserted into the user's skin, and in the second position retracts together with the carrier 422 and is separated from the user's skin and the sensor unit 100.

[0064] The carrier 422 is coupled to the plunger 410 so as to be movable relative to it. The carrier 422 can move together with the plunger 410 from a first position to a second position by engaging a portion of the plunger 410 with it. Then, at the second position, the carrier 422 can disengage from the plunger 410 and retract in a direction away from the sensor unit 100.

[0065] The carrier 422 includes a carrier body 423 to which the needle 450 is attached, elastically deformable carrier wings 431 extending from the carrier body 423, and a locking arm 439 connected to the side of the carrier body 423.

[0066] The carrier body 423 includes a boss 424 with an insertion groove formed on its interior. A portion of the needle 450 is inserted into the insertion groove. The needle 450 is inserted into the insertion groove and fixed to the carrier body 423. Various forms of clamping portions that engage with the needle 450 are provided within the insertion groove.

[0067] The needle release driver 480 provides a moving force to the carrier 422. The needle release driver 480 includes an elastic member 481, one end of which is coupled to the fixed portion 416 of the plunger 410 and the other end of which is coupled to the fixed portion 429 of the carrier 422. The elastic member 481 is made in the form of a tension spring and applies an elastic force to pull the carrier 422 toward the fixed portion 416 of the plunger 410. That is, the elastic member 481 applies an elastic force to the carrier 422 in the direction away from the sensor unit 100, causing the needle 450 coupled to the carrier 422 to move away from the sensor unit 100. The needle release driver 480 can be modified in a variety of other configurations that can provide a moving force to the carrier 422, other than the configuration that includes an elastic member 481 in the form of a coil spring.

[0068] The carrier wing 431 is connected to the carrier body 423 in a shape that extends from the carrier body 423 in the direction of movement of the carrier 422. The carrier wing 431 includes a wing body 432 that is elastically deformable and connected to the carrier body 423, and a trigger 434 and a latch portion 437 that protrude from the wing body 432.

[0069] The trigger 434 is provided on one side of the wing body 432 so as to protrude outward from the wing body 432. The trigger 434 is inserted into the slit 413 of the plunger 410 and the slit 319 of the column portion 318, and can move along these slits 413 and 319. The carrier 422 can move more stably and linearly by being inserted into and guided by the slits 413 and 319. The trigger 434 passes through the slit 413 of the plunger 410 and a portion of it is inserted into the slit 319 of the column portion 318. As the carrier 422 moves from the first position to the second position together with the plunger 410, the trigger 434 can contact the release portion 320 located midway between the slits 319 of the column portion 318.

[0070] As shown in Figure 8, the release portion 320 is positioned in the middle of the slit 319 of the column portion 318 so that it can pressurize the trigger 434. As the carrier 422 moves from the first position to the second position, the trigger 434 comes into contact with the release portion 320 and the carrier wing 431 is elastically deformed. The trigger 434 is equipped with a trigger inclined portion 435 that contacts the release portion 320. As the carrier 422 moves from the first position to the second position, the trigger inclined portion 435 comes into contact with the release portion 320, causing the carrier wing 431 to deform elastically even more smoothly, reducing the impact generated when the trigger 434 comes into contact with the release portion 320, and allowing the pressurizing force of the release portion 320 to be transmitted to the trigger 434 even more smoothly.

[0071] The latch portion 437 protrudes outward from the wing body 432. The direction in which the latch portion 437 protrudes from the wing body 432 is the same as the direction in which the trigger 434 protrudes from the wing body 432. The protrusion height of the latch portion 437 from the wing body 432 is lower than the protrusion height of the trigger 434 from the wing body 432. The latch portion 437 can engage with the detent portion 414 of the plunger 410. With the latch portion 437 engaged with the detent portion 414, the carrier 422 can maintain the elastic deformation of the elastic member 481 and cannot move in the direction in which the elastic force of the needle release driver 480 acts.

[0072] The locking arms 439 are elastically deformable and mounted on the sides of the carrier body 423. A pair of locking arms 439 are positioned on both sides of the carrier body 423, facing each other, to detachably secure the sensor unit housing 120 of the sensor unit 100. The locking arms 439 are equipped with a locking projection 440 that engages with the sensor unit housing 120 and a projection 441 that contacts the inner wall 323 of the column portion 318. As shown in Figure 7, when the carrier 422 and the sensor unit 100 are in the first position, the projection 441 contacts the inner wall 323 of the column portion 318, causing the locking arms 439 to be deflected in the direction of engaging with the sensor unit housing 120. Therefore, the sensor unit 100 can maintain a stable connection to the carrier 422 in the first position.

[0073] On the other hand, when the sensor unit 100 and carrier 422 move toward the base unit 200 and the sensor unit 100 is coupled to the base unit 200, the protrusion 441 is positioned in the space connected to the recess 313 in which the base unit 200 is housed, and disengages from the inner wall 323 of the column portion 318. Therefore, the fixing force of the locking arm 439 weakens when the sensor unit 100 is coupled to the base unit 200. Furthermore, since the sensor unit 100 is fixed to the base unit 200 by the adhesive layer 155, when the carrier 422 is pulled away from the body attachment unit 20 by the needle release driver 480, the locking arm 439 smoothly disengages from the sensor unit 100 and separates from the sensor unit 100.

[0074] The carrier 422 can be modified in various other configurations besides the illustrated one, in which it is coupled to the needle 450 and mounted to the plunger 410 so as to be movable relative to it. For example, although the drawing shows a pair of carrier wings 431 symmetrically provided on both sides of the carrier body 423, the number and shape of the carrier wings 431 can be varied in various ways. In addition, the coupling method between the carrier 422 and the needle 450, and the coupling method between the carrier 422 and the sensor unit 100 can also be varied in various ways.

[0075] The needle 450 is fixed to the carrier 422 and coupled to the sensor unit 100, allowing it to move from a first position to a second position. The needle 450 is shaped with a pointed end so that it can pass through the user's skin and be smoothly inserted into the user's skin. When the sensor unit 100 moves to the second position, the needle 450 penetrates the user's skin before the sensor 110, ensuring that the sensor 110 is stably inserted into the skin. After the sensor 110 has been inserted into the user's skin, the needle 450 separates from the user's skin.

[0076] The removing unit 500 is installed on the applicator body 300 to separate the protective sheet 160 of the sensor unit 100 from the adhesive layer 155 before the sensor unit 100 reaches a second position and is coupled to the base unit 200. The removing unit 500 includes a movable member 510 which is movably installed on the middle frame 330 so as to be coupled with the protective sheet 160, and a movable member driver 522 which provides a moving force to the movable member 510 to move the movable member 510.

[0077] The moving member 510 is positioned to move linearly on the stage 333 of the middle frame 330. The moving member 510 is positioned to move in a direction that is approximately perpendicular and intersects with the direction in which the sensor unit 100 moves from a first position to a second position. The moving member 510 can move while coupled with the protective sheet 160, thereby pulling the protective sheet 160 away from the adhesive layer 155. Specifically, the moving member 510 can move from a third position, where the protective sheet 160 is coupled with the protective sheet 160 while covering the adhesive layer 155, to a fourth position, where it separates the protective sheet 160 from the adhesive layer 155. The moving member 510 can also act as a stopper to fix the plunger 410 in the first position. That is, the moving member 510 fixes the plunger 410 in the first position by contacting the plunger 410 when it is in the third position, and disengages from the plunger 410 so that the plunger 410 moves to the second position when it moves to the fourth position.

[0078] The movable member 510 includes a movable member body 511, a base portion 518 for supporting the plunger 410, and a grip portion 520 that is connected to the protective sheet 160.

[0079] The movable member body 511 has a movable member opening 512 and a movable member groove 513 formed so as to penetrate the movable member body 511 in the thickness direction. The movable member opening 512 is formed in the middle of the movable member body 511, and a pair of movable member grooves 513 are arranged on both sides of the movable member body 511. A fixing projection 514 is provided inside the movable member groove 513, which is connected to a movable member driver 522. A rail portion 515 is provided on one side of the movable member body 511 facing the stage 333 of the middle frame 330. The rail portion 515 engages with the guide rail 336 of the middle frame 330 and slides along the guide rail 336. In the drawing, the guide rail 336 is shown in a groove form and the rail portion 515 is inserted into the guide rail 336, but the guide rail 336 and rail portion 515 can be modified in various other forms that can guide the movable member body 511 to move linearly and stably on the stage 333.

[0080] The base portion 518 is positioned in pairs on both side edges of the movable member opening 512, facing each other. The base portion 518 can protrude from the movable member body 511 and support the plunger projection 412 of the plunger 410. The length of the base portion 518 is shorter than the distance the movable member body 511 moves from the third position to the fourth position. When the movable member 510 is in the third position, the base portion 518 can support the plunger projection 412 of the plunger 410 and fix the plunger 410 in the first position. Then, when the movable member 510 moves to the fourth position, the base portion 518 disengages from the plunger projection 412, allowing the plunger 410 to move to the second position. The base portion 518 can be modified in various other forms besides protruding from the movable member body 511, such as supporting the plunger projection 412 or a portion of the plunger 410.

[0081] The grip portion 520 is connected to the movable member body 511 so as to be located within the movable member opening 512. A portion of the grip portion 520 is inserted into a groove provided in the protective sheet 160 and coupled to the protective sheet 160. The method of coupling the movable member 510 and the protective sheet 160 can be changed to a variety of other methods other than the method using the grip portion 520. In other exemplary embodiments, the movable member 510 is coupled to the protective sheet 160 by an adhesive method or by engaging with the edge of the protective sheet 160.

[0082] The moving member driver 522 provides a moving force to the moving member 510 so that it moves from a third position to a fourth position. The moving member driver 522 includes an elastic member 523 that applies an elastic force to the moving member 510 in a direction that deflects it to the fourth position. The elastic member 523 is inserted into the moving member groove 513 of the moving member 510, with one end coupled to a fixing projection 337 of the middle frame 330 and the other end coupled to a fixing projection 514 of the moving member 510. The moving member driver 522 can be modified in various other forms that can provide a moving force to the moving member 510, other than the configuration that includes an elastic member 523 in the form of a coil spring.

[0083] As shown in Figure 11, the movable member 510 is fixed in the third position by engaging with a stopper 341 provided on the middle frame 330, causing the elastic member 523 to be elastically deformed. A portion of the stopper 341 is inserted into the movable member opening 512 of the movable member 510 and engages with the movable member 510. The stopper 341 is released by the operating member 345, and the restraining force on the movable member 510 is removed. That is, as shown in Figure 12, if the user pushes the operating member 345, the operating member 345 can deflect the stopper 341 so that it disengages from the movable member 510.

[0084] Figures 13 and 14 show the state in which the movable member 510 is engaged with the stopper 341 and fixed in the third position. At this time, the movable member 510 supports the plunger 410 and fixes the plunger 410 in the first position, and the protective sheet 160 connected to the movable member 510 maintains a state in which it covers the adhesive layer 155.

[0085] Figures 15 and 16 show the movable member 510 disengaged from the stopper 341. At this time, the movable member 510 pulls the protective sheet 160 and moves to the fourth position. As a result, the protective sheet 160 is separated from the adhesive layer 155, and the plunger 410 can detach from the movable member 510 and be moved to the second position by the plunger driver 418.

[0086] If the length of the base portion 518 that supports the plunger projection 412 of the plunger 410 is made sufficiently long, the moving member 510 can detach from the plunger 410 after completely separating the protective sheet 160 at the adhesive layer 155. In this case, the separation operation of the protective sheet 160 is completed with the sensor unit 100 in the first position, and then the sensor unit 100 can move to the second position. Depending on the length of the base portion 518, it is also possible for the plunger 410 to start moving toward the second position during the separation operation of the protective sheet 160.

[0087] Thus, the movable member 510 has the function of separating the protective sheet 160 and the function of operating the insertion unit 400 in cooperation with the operating member 345. In addition to these functions, the movable member 510 can move the locking hook 325 that fixes the base unit 200. For this purpose, one side of the movable member body 511 facing the stage 333 of the middle frame 330 is provided with a guide portion 516 that engages with the locking hook 325.

[0088] The guide portion 516 is in the form of a groove that is inclined with respect to the direction of movement of the moving member 510 so that the end of the load 328 of the locking hook 325 engages with it. Since the end of the load 328 engages with the guide portion 516, the locking hook 325 can rotate in conjunction with the moving member 510. As shown in Figure 17, the locking hook 325 can rotate in a direction in which the hook portion 327 engages with the base unit 200, or in a direction in which the hook portion 327 disengages from the base unit 200, depending on the position of the moving member 510.

[0089] As shown in Figures 14 and 18, when the movable member 510 is in the third position, the guide portion 516 deflects the locking hook 325 in a direction in which the hook portion 327 engages with the base unit 200.

[0090] On the other hand, as shown in Figures 16 and 19, when the movable member 510 moves to the fourth position, the guide portion 516 rotates the locking hook 325 in a direction in which the hook portion 327 disengages from the base unit 200. That is, when the movable member 510 moves from the third position to the fourth position, the load 328 of the locking hook 325 is pulled by the guide portion 516 in a direction that brings it closer to the movable member opening 512 of the movable member 510. At this time, the locking hook 325 is deflected by rotating around the pivot portion 326 so that the hook portion 327 disengages from the base unit 200.

[0091] The action of the movable member 510 allows the locking hook 325 to maintain a stable engagement with the base unit 200 when the movable member 510 is in the third position, thereby fixing the base unit 200 so that it does not separate from the recess 313 of the applicator body 300. When the movable member 510 moves to the fourth position, the locking hook 325 disengages from the base unit 200, allowing the base unit 200 to separate from the applicator body 300. Thus, after the sensor unit 100 is coupled with the base unit 200 and the body attachment unit 20 is assembled, the body attachment unit 20 is smoothly separated from the applicator 30 while still attached to the user's skin by the adhesive portion 230.

[0092] Although the drawing shows the guide portion 516 as having a groove, the guide portion can be modified in various other forms so that it engages with the locking hook 325 and deflects the locking hook 325 by the movement of the movable member 510. Depending on the shape of the guide portion, the locking hook can also be modified in various other configurations so that it can be detachably engaged with the base unit 200.

[0093] The operation of an applicator assembly 10 according to one embodiment of the present invention will be described below with reference to Figures 20 to 25.

[0094] Referring to Figures 20 and 21, first, the bottom 312 of the applicator 30 is positioned against the user's skin so that the base unit 200 adheres to the user's skin through the adhesive portion 230. Before the operating member 345 is operated, the sensor unit 100, coupled to the carrier 422, is positioned in the first position with the protective sheet 160 covering the adhesive layer 155. Then, the moving member 510 engages with the stopper 341 and is positioned in the third position.

[0095] Thereafter, when the operating member 345 is pressed, the movable member 510 disengages from the stopper 341 and moves to the fourth position by the movable member driver 522. As shown in Figures 22 and 23, when the movable member 510 moves to the fourth position, the protective sheet 160 is pulled by the movable member 510 and separated from the adhesive layer 155. Then, the plunger 410 disengages from the movable member 510 and moves to the second position by the plunger driver 418. At this time, the insertion part 116 and needle 450 of the sensor 110 are inserted into the user's skin, and the sensor unit 100, from which the protective sheet 160 has been separated, is attached to the base unit 200 by the adhesive layer 155, thereby assembling the body attachment unit 20.

[0096] As the plunger 410 moves and the insertion section 116 and needle 450 are inserted into the user's skin, the trigger 434 of the carrier 422 comes into contact with the release section 320 of the column section 318. At this time, the carrier wing 431 of the carrier 422 is elastically deformed, causing the latch section 437 of the carrier 422 to disengage from the detent section 414 of the plunger 410.

[0097] When the carrier 422 is disengaged from the plunger 410, as shown in Figures 24 and 25, the carrier 422 moves away from the user's skin by the elastic member 481 of the needle release driver 480. At this time, the needle 450 slips away from the user's skin, and the body attachment unit 20 remains attached to the user's skin by the adhesive portion 230.

[0098] With the sensor unit 100 coupled to the base unit 200 and the body attachment unit 20 assembled, the locking hook 325 engaged with the base unit 200 rotates in conjunction with the movable member 510. That is, the locking hook 325 is deflected by the movable member 510 to disengage from the base unit 200. Consequently, the body attachment unit 20 is separated from the applicator 30 while still attached to the user's skin.

[0099] The body-attachment unit 20, which is attached to the user's skin and separated from the applicator 30, measures the user's biometric information and can transmit the measurement information to an external terminal 5 or the like.

[0100] As described above, the applicator assembly 10 according to one embodiment of the present invention can maintain a stable connection to the applicator body 300 such that the base unit 200, which is assembled with the sensor unit 100 to form the body attachment unit 20, is separated from the sensor unit 100 by a locking hook 325 installed on the applicator body 300. Furthermore, as the sensor unit 100 moves and connects with the base unit 200, the locking hook 325 disengages from the base unit 200, allowing the base unit 200 to smoothly separate from the applicator 30.

[0101] Although the present invention has been described with reference to desirable examples, the scope of the present invention is not limited to the embodiments described and illustrated above.

[0102] For example, although the drawing shows that the moving member for moving the locking hook 325 is a component of the removing unit for separating the protective sheet from the sensor unit, the moving member for moving the locking hook 325 can be a component provided separately from the removing unit.

[0103] Furthermore, although the drawing shows the movable member being installed to move in a direction approximately perpendicular and intersecting with the direction of movement of the sensor unit, the movable member can be installed to move in other directions.

[0104] Furthermore, although the drawings show that a stopper is provided on the middle frame to restrain the movement of the moving member when the elastic member that provides the moving force to the moving member is elastically deformed, the position of the stopper can be changed in various ways. In other exemplary embodiments, the stopper is installed at various positions on the applicator body other than the middle frame. In yet another exemplary embodiment, the moving member is provided so as to engage with the applicator body and the stopper is released by the operating member.

[0105] Furthermore, although the drawing shows the sensor unit being detachably coupled to a carrier connected to a needle and moving from a first position to a second position, the sensor unit can also be detachably coupled to a plunger or a separate member provided on the plunger and move together with the plunger.

[0106] In another exemplary embodiment, the base unit can be configured to simply support the sensor unit so that it does not separate from the user's skin. In this case, a separate electronic unit is detachably coupled to the base unit, which can process the biometric information measured by the sensor unit and transmit it to an external terminal or the like. The separate electronic unit is coupled to the base unit so as to be electrically coupled to the sensor unit after the sensor unit has been coupled to the base unit.

[0107] Although the present invention has been illustrated and described above in relation to preferred embodiments illustrating the principles of the present invention, the present invention is not limited to the configuration and operation as illustrated and described herein. Rather, those skilled in the art will understand that multiple changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims.

Claims

1. In an applicator for inserting a sensor for measuring biometric information into the user's skin, An applicator body to which a base unit including a base unit housing and an adhesive portion provided on the base unit housing so as to adhere to the user's skin is detachably coupled, A locking hook is installed on the applicator body to engage with the base unit in order to maintain the base unit in a coupled state to the applicator body, An insertion unit is installed on the applicator body to move the sensor unit, which includes the sensor and the sensor unit housing on which the sensor is mounted, from a first position separated from the base unit to a second position coupled with the base unit, so that the sensor can be inserted into the user's skin. A movable member is installed on the applicator body so as to be movable from a third position to a fourth position, Includes, The moving member deflects the locking hook such that the locking hook engages with the base unit at the third position and disengages from the base unit at the fourth position. The locking hook is pivotally connected to the applicator body and comprises a rod that engages with the moving member. The moving member is supplied with a guide portion that engages with the rod in a form inclined with respect to the direction of movement of the moving member. An applicator characterized in that the moving member moves from the third position to the fourth position and the guide portion moves while engaging with the rod, thereby rotating the locking hook in a direction that disengages it from the base unit.

2. The applicator according to claim 1, characterized in that the moving member is installed to move in a direction intersecting the direction in which the sensor unit moves from the first position to the second position.

3. The aforementioned insertion unit is A plunger is installed together with the sensor unit so as to be movable from the first position to the second position, A needle detachably coupled to the sensor unit so as to be inserted into the user's skin together with the sensor, A carrier installed in the plunger and coupled to the needle, Includes a plunger driver that provides a moving force to the plunger in the direction of moving it from a first position to a second position, The applicator according to claim 2, characterized in that the plunger is constrained to move by contacting the moving member located from the first position to the third position, and when the moving member moves to the fourth position, the plunger disengages from the moving member and moves to the second position.

4. The aforementioned applicator body is A base frame comprising a base portion that comes into contact with the user's skin, and a column portion that protrudes from the base portion and houses the plunger, The applicator according to claim 3, characterized in that it includes a stage positioned above the base portion to support the movable member, and a middle frame having a middle frame opening formed in the middle of the stage into which the column portion is inserted.

5. An elastic member that applies an elastic force to the moving member so that the moving member moves from the third position to the fourth position, A stopper that restrains the movement of the moving member when the elastic member is elastically deformed, The applicator according to claim 4, further comprising an operating member that can be operated by a user to release the stopper so that the moving member moves due to the elastic member.

6. The aforementioned locking hook is A pivot portion coupled to the applicator body, A hook portion protruding from the pivot portion so as to engage with the base unit, Includes, The aforementioned rod protrudes from the pivot portion, The applicator according to claim 1, characterized in that the moving member is installed to move in a direction intersecting the direction in which the sensor unit moves from the first position to the second position.

7. The applicator according to claim 1, further comprising a moving member driver for moving the moving member from the third position to the fourth position.

8. The applicator according to claim 7, characterized in that the moving member driver includes an elastic member that applies elastic force to the moving member.

9. A stopper that restrains the movement of the moving member when the elastic member is elastically deformed, The applicator according to claim 8, further comprising an operating member that can be operated by a user to release the stopper so that the moving member moves due to the elastic member.

10. In an applicator for inserting a sensor for measuring biometric information into the user's skin, The sensor, the base unit housing, and the applicator body to which a body attachment unit including an adhesive portion provided on the base unit housing so as to adhere to the user's skin are detachably coupled, A locking hook is installed on the applicator body to engage with the base unit housing in order to maintain the base unit housing in a coupled state to the applicator body, A needle is positioned on the applicator body so as to move from a first position to a second position so as to be inserted into the user's skin together with the sensor, A movable member is installed on the applicator body so as to be movable from a third position to a fourth position, Includes, The moving member deflects the locking hook so that it engages with the base unit housing in the third position and disengages from the base unit housing in the fourth position. The locking hook is pivotally connected to the applicator body and comprises a rod that engages with the moving member. The moving member is supplied with a guide portion that engages with the rod in a form inclined with respect to the direction of movement of the moving member. An applicator characterized in that the moving member moves from the third position to the fourth position and the guide portion moves while engaging with the rod, thereby rotating the locking hook in a direction that disengages it from the base unit housing.

11. An applicator body that can come into contact with the user's skin, A sensor unit including a sensor and a sensor unit housing on which the sensor is mounted, A base unit comprising a base unit housing and an adhesive portion provided on the base unit housing so as to adhere to the user's skin, the base unit being separated from the sensor unit and detachably coupled to the applicator body, An insertion unit is installed on the applicator body to move the sensor unit from a first position separated from the base unit to a second position where the sensor is inserted into the user's skin and connects with the base unit, A locking hook is installed on the applicator body to engage with the base unit in order to maintain the base unit in a coupled state to the applicator body, A movable member is installed on the applicator body so as to be movable from a third position to a fourth position, Includes, The moving member deflects the locking hook so that it engages with the base unit in the third position and disengages from the base unit in the fourth position. The locking hook is pivotally connected to the applicator body and comprises a rod that engages with the moving member. The moving member is supplied with a guide portion that engages with the rod in a form inclined with respect to the direction of movement of the moving member. An applicator assembly characterized in that the moving member moves from the third position to the fourth position and the guide portion moves while engaging with the rod, thereby rotating the locking hook in a direction that disengages it from the base unit.

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