Applicator and applicator assembly for transcutaneous sensor

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 that can come into contact with the user's skin, the sensor, a sensor unit housing to which the sensor is attached, an adhesive layer provided on the sensor unit housing, and an insertion unit installed on the applicator body to move a sensor unit including a protective sheet covering the adhesive layer from a first position separated from the user's skin to a second position where the sensor is inserted into the user's skin, a removing unit installed on the applicator body to separate the protective sheet from the adhesive layer before the sensor unit reaches the second position, and an actuating member installed on the applicator body to be operated by a user to operate the removing unit.

Description

[Technical Field]

[0001] The present invention relates to an applicator for a transcutaneous sensor, and more particularly to an applicator and applicator assembly for inserting a transcutaneous sensor into a user's skin to measure biological information. [Background technology]

[0002] Recently, with the advancement of medical technology, various medical devices that are attached to the user's body have been developed and sold. Medical devices that are attached to the skin are attached to the body of patients with chronic diseases and are useful for monitoring biological information or providing treatment.

[0003] For example, chronic diseases like diabetes require continuous management, and medical devices attached to the body to monitor blood glucose levels are used to monitor diabetic patients. While diabetes is characterized by few noticeable symptoms in the early stages, as the disease progresses, specific symptoms of diabetes appear, such as excessive drinking, eating, and urination, weight loss, general fatigue, itchy skin, and persistent wounds on the hands and feet. As diabetes progresses, complications such as vision impairment, high blood pressure, kidney disease, stroke, periodontal disease, muscle spasms, neuralgia, and gangrene can develop. To diagnose and manage diabetes to prevent complications, systematic blood glucose monitoring and treatment are required.

[0004] Many medical device manufacturers offer a variety of blood glucose monitors for diabetics and people who have not yet developed diabetes but have higher than normal levels of sugar in their blood.

[0005] There are two types of blood glucose measuring devices: one in which the user takes a blood sample from the tip of a finger and measures blood glucose one time, and one in which the device is attached to the user's abdomen or arm and measures blood glucose continuously.

[0006] Diabetic patients generally experience a state of hyperglycemia and hypoglycemia, but hypoglycemia can be an emergency and can lead to loss of consciousness, or even death if the hypoglycemic state continues for a long time without a sugar supply. Therefore, the prompt detection of hypoglycemia is very important for diabetic patients, but blood glucose monitors that measure blood glucose intermittently have limitations in accurately detecting this state.

[0007] Recently, to overcome these limitations, a Continuous Glucose Monitoring System (CGMS) has been developed and is being used, which is inserted into the human body and measures blood glucose levels every few minutes. In order to minimize the pain and discomfort felt by users when drawing blood, a continuous glucose monitoring system measures blood glucose continuously by inserting a needle-shaped transcutaneous sensor into areas such as the abdomen or arm, where pain is relatively less.

[0008] The continuous blood glucose monitoring system comprises a sensor unit including a transcutaneous sensor that is inserted into the user's skin to measure blood glucose levels inside the body, a transmitter for transmitting the blood glucose levels measured by the transcutaneous sensor, and a terminal for outputting the transmitted blood glucose levels. Summary of the Invention [Problem to be solved by the invention]

[0009] Medical systems that use transcutaneous sensors are manufactured in a wide variety of forms by different manufacturers, and their usage methods are also diverse. Currently, most systems are manufactured and distributed in a way that a single-use sensor unit is attached to the body using an applicator. The user must perform multiple steps to attach the sensor unit to the skin using the applicator, and after attaching the sensor unit to the body, various follow-up procedures must be performed, such as directly removing the needle inserted into the skin along with the transcutaneous sensor.

[0010] For example, users must unwrap the single-use sensor unit and place it correctly on the applicator, then insert the sensor unit into the applicator and operate the applicator to attach the sensor unit to the skin. After attaching the sensor unit, users must then remove the needle inserted into the skin and connect the transmitter to the sensor unit, which is inconvenient.

[0011] The present invention has been devised in consideration of the above points, and aims to provide an applicator and applicator assembly for a transcutaneous sensor that can be manufactured in an assembled state with a sensor unit including a transcutaneous sensor, minimizes additional work by the user to insert the transcutaneous sensor into the skin, and allows the user to conveniently insert the transcutaneous sensor into the skin.

[0012] Another object of the present invention is to provide an applicator and applicator assembly for a transdermal sensor that can automatically separate a protective sheet that covers and protects an adhesive layer provided on a sensor unit. [Means for solving the problem]

[0013] To achieve the above-mentioned object, an applicator according to the present invention is an applicator for inserting a sensor for measuring biological information into a user's skin, the applicator comprising: an applicator body adapted to come into contact with the user's skin; an insertion unit installed in the applicator body for moving a sensor unit, including the sensor, a sensor unit housing to which the sensor is attached, an adhesive layer provided on the sensor unit housing, and a protective sheet covering the adhesive layer, from a first position spaced apart from the user's skin to a second position where the sensor is inserted into the user's skin; a removing unit installed in the applicator body for separating the protective sheet from the adhesive layer before the sensor unit reaches the second position; and an actuating member installed in the applicator body for operating the removing unit by a user.

[0014] The removing unit may include a moving member movably installed on the applicator body so as to be able to pull the protection sheet in a direction to separate it from the adhesive layer, and to which a portion of the protection sheet is bonded.

[0015] The removing unit may include a moving member driver that moves the moving member.

[0016] The moving member driver may include an elastic member that applies an elastic force to the moving member in a direction that exposes the protective sheet from the adhesive layer.

[0017] The applicator according to the present invention includes a stopper that restricts the movement of the movable member when the elastic member is elastically deformed, and the actuating member can release the stopper so that the movable member moves due to the elastic member.

[0018] 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.

[0019] The applicator according to the present invention may include a support column installed on the applicator body for supporting the protection sheet separated from the adhesive layer by the moving member.

[0020] The movable member is installed to be movable from a third position where the protective sheet is coupled to the protective sheet while covering the adhesive layer to a fourth position where the protective sheet is separated from the adhesive layer, and the support pillar is pressed by the movable member and elastically deformed when the movable member is at the third position, and is released from the movable member and returns to its original state to support the protective sheet when the movable member moves to the fourth position.

[0021] The insertion unit includes a plunger that is installed so as to be movable from the first position to the second position together with the sensor unit, a needle that is detachably connected to the sensor unit so as to be inserted into the user's skin together with the sensor, a carrier that is installed on the plunger and connected to the needle, and a plunger driver that provides a moving force to the plunger in a direction to move from the first position to the second position, wherein the plunger is in contact with the moving member at the first position so as to be constrained from moving, and can move to the second position by detaching from the moving member when the moving member moves in a direction to separate the protective sheet from the adhesive layer.

[0022] The movable 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, and the plunger can be released from the movable member after the separating operation of the protective film by the movable member is completed.

[0023] The applicator body may include a base frame having a frame base portion that contacts the user's skin, a column portion that protrudes from the frame base portion and accommodates the plunger, a stage that is disposed above the frame base portion and supports the moving member, and a middle frame having a middle frame opening formed in the middle of the stage so that the column portion can be inserted.

[0024] The removing unit includes an elastic member that applies an elastic force to the movable member in a direction that exposes the protective sheet from the adhesive layer, and one of the middle frame and the movable member is provided with a stopper that restricts movement of the movable member when the elastic member is elastically deformed, and the operating member can release the stopper so that the movable member moves due to the elastic member.

[0025] The moving member may include a moving member body, a moving member opening formed in the middle of the moving member body so that the plunger can pass through, and a grip portion provided on the moving member body so as to be coupled with the protection sheet.

[0026] The applicator according to the present invention may include a needle release driver that provides a moving force to the carrier so that the carrier moves in a direction in which the needle is separated from the user's skin after the needle together with the sensor is inserted into the user's skin.

[0027] The protective sheet may include a protective portion covering the adhesive layer, and wing portions extending from edges of the protective portion to be coupled to the moving member.

[0028] The protection sheet may have a protection sheet groove, and the moving member may include a grip portion inserted into the protection sheet groove.

[0029] Meanwhile, according to another aspect of the present invention, an applicator for inserting a sensor into a user's skin 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 coupled; an insertion unit installed on the applicator body to move a sensor unit including the sensor, a sensor unit housing to which the sensor is attached, an adhesive layer provided on the sensor unit housing to be attached to the base unit housing, and a protective sheet covering the adhesive layer from a first position spaced apart from the base unit to a second position coupled to the base unit, thereby inserting the sensor into the user's skin; a removing unit installed on the applicator body to separate the protective sheet from the adhesive layer before the sensor unit reaches the second position; and an actuation member installed on the applicator body to be operated by a user to operate the removing unit.

[0030] Meanwhile, to achieve the above-mentioned object, an applicator assembly according to the present invention includes a sensor, a sensor unit housing to which the sensor is attached, an adhesive layer provided on the sensor unit housing, a sensor unit having a protective sheet covering the adhesive layer, an applicator body that can contact a user's skin, an insertion unit installed on the applicator body to move the sensor unit from a first position spaced apart from the user's skin to a second position where the sensor is inserted into the user's skin, a removing unit installed on the applicator body to separate the protective sheet from the adhesive layer before the sensor unit reaches the second position, and an actuating member installed on the applicator body to operate the removing unit by a user.

[0031] The applicator assembly according to the present invention includes a base unit housing and an adhesive portion provided on the base unit housing to be attached to the user's skin, and the base unit is detachably coupled to the applicator body, and the sensor unit housing is attached to the base unit housing by the adhesive layer at the second position. [Effects of the Invention]

[0032] According to the present invention, the sensor unit is manufactured in an assembled state within the applicator, minimizing the additional work required by the user to attach the sensor unit to the user's skin, and the sensor unit can be attached to the user's skin simply by operating the applicator.

[0033] Furthermore, according to the present invention, by covering and protecting the adhesive layer of the sensor unit with a protective sheet, it is possible to prevent the problem of the adhesive layer losing its adhesiveness before the sensor is inserted into the user's skin.

[0034] Furthermore, according to the present invention, the protective sheet that covers and protects the adhesive layer of the sensor unit can be automatically separated by operating the applicator, eliminating the need for a separate additional operation to separate the adhesive layer of the sensor unit, resulting in excellent ease of use. [Brief explanation of the drawings]

[0035] [Figure 1] 1 is a perspective view showing an applicator assembly according to an embodiment of the present invention; [Figure 2] 1 is a view showing a state in which the body attachment unit is attached to the skin of a user. [Figure 3] FIG. 1 is a perspective view showing a body attachment unit. [Figure 4] FIG. 2 is an exploded perspective view showing the sensor unit. [Figure 5] FIG. 2 is an exploded perspective view showing the sensor unit. [Figure 6]FIG. 2 is an exploded cross-sectional view of a part of the sensor unit. [Figure 7] FIG. 10 is a cross-sectional view showing a state in which a needle is coupled to a sensor unit. [Figure 8] FIG. 10 is a cross-sectional view showing the needle being separated from the sensor unit. [Figure 9] 1 is a view showing a state in which a protective sheet is attached to an adhesive layer of a sensor unit. [Figure 10] 10 is a diagram showing the sensor unit after the protective sheet has been separated from the adhesive layer. [Figure 11] This is a diagram showing the sensor unit and base unit before they are combined. [Figure 12] This is a diagram showing the sensor unit and base unit before they are combined. [Figure 13] FIG. 10 is a cross-sectional view showing the assembled body-attachable unit with the sensor unit and base unit combined together. [Figure 14] FIG. 2 is a cross-sectional view taken along line II in FIG. [Figure 15] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 16] 1 is an exploded perspective view of an applicator according to an embodiment of the present invention; [Figure 17] 1 is a perspective view showing a needle assembly of an applicator according to one embodiment of the present invention. FIG. [Figure 18] 1 is a perspective view showing a needle assembly of an applicator according to one embodiment of the present invention. FIG. [Figure 19] FIG. 10 is a cross-sectional view showing the carrier and the needle before they are joined together. [Figure 20] 1 is a perspective view showing a partial configuration of an applicator according to an embodiment of the present invention. [Figure 21] 1 is a view showing a moving member, a sensor unit, and a carrier of an applicator according to an embodiment of the present invention in a separated state; [Figure 22]1 is a view showing a moving member, a sensor unit, and a carrier of an applicator according to an embodiment of the present invention in a separated state; [Figure 23] 10 is a view illustrating a state in which an actuating member of an applicator according to an embodiment of the present invention deflects a stopper so as to be disengaged from a moving member; [Figure 24] 10 is a side view showing the movable member of the applicator according to the embodiment of the present invention fixed at a third position by a stopper. FIG. [Figure 25] 10 is a plan view showing a state in which a moving member of an applicator according to an embodiment of the present invention is fixed at a third position by a stopper. FIG. [Figure 26] 10 is a side view illustrating a state in which the moving member of the applicator according to the embodiment of the present invention has moved to a fourth position and separated the protective sheet of the sensor unit. FIG. [Figure 27] 10 is a plan view showing a state in which a moving member of an applicator according to an embodiment of the present invention is moved to a fourth position. FIG. [Figure 28] 10 is a view showing a state in which a locking hook of an applicator according to an embodiment of the present invention is engaged with a base unit. [Figure 29] 10 is a view showing a state in which a locking hook of an applicator is connected to a guide part of a moving member according to an embodiment of the present invention; [Figure 30] 10 is a view showing a state in which a locking hook of an applicator is connected to a guide part of a moving member according to an embodiment of the present invention; [Figure 31] 4 is a diagram illustrating a process in which a sensor of a sensor unit is inserted into a user's skin by an applicator according to an embodiment of the present invention. [Figure 32] 4 is a diagram illustrating a process in which a sensor of a sensor unit is inserted into a user's skin by an applicator according to an embodiment of the present invention. [Figure 33] 4 is a diagram illustrating a process in which a sensor of a sensor unit is inserted into a user's skin by an applicator according to an embodiment of the present invention. [Figure 34]4 is a diagram illustrating a process in which a sensor of a sensor unit is inserted into a user's skin by an applicator according to an embodiment of the present invention. [Figure 35] 4 is a diagram illustrating a process in which a sensor of a sensor unit is inserted into a user's skin by an applicator according to an embodiment of the present invention. [Figure 36] 4 is a diagram illustrating a process in which a sensor of a sensor unit is inserted into a user's skin by an applicator according to an embodiment of the present invention. [Figure 37] 10 is a cross-sectional view showing an applicator assembly according to another embodiment of the present invention. [Figure 38] 10 is a cross-sectional view showing an applicator assembly according to another embodiment of the present invention. [Figure 39] 10 is a view showing a state in which a top case of an applicator assembly according to another embodiment of the present invention is separated from a middle frame. [Figure 40] 10 is a cross-sectional view showing a portion of an applicator assembly according to another embodiment of the present invention. [Figure 41] 10 is a view showing a moving member, a sensor unit, and a carrier of an applicator according to another embodiment of the present invention in a separated state; [Figure 42] 10 is a view showing a moving member, a sensor unit, and a carrier of an applicator according to another embodiment of the present invention in a separated state; [Figure 43] 10A and 10B are views illustrating a process in which a moving member of an applicator separates a protection sheet of a sensor unit according to another embodiment of the present invention. [Figure 44] 10A and 10B are views illustrating a process in which a moving member of an applicator separates a protection sheet of a sensor unit according to another embodiment of the present invention. [Figure 45] 10 is a cross-sectional view showing a portion of an applicator according to still another embodiment of the present invention. [Figure 46] 10 is a view showing a state in which a moving member of an applicator according to still another embodiment of the present invention is fixed at a third position by a stopper. [Figure 47]10 is a view illustrating a state in which a moving member of an applicator according to still another embodiment of the present invention is moved to a fourth position and a protective sheet of a sensor unit is separated. [Figure 48] 10 is a cross-sectional view showing a portion of an applicator assembly according to still another embodiment of the present invention. [Figure 49] 49 is a diagram showing a sensor unit of the applicator assembly shown in FIG. 48. [Figure 50] 10 is a diagram showing another embodiment of a sensor unit and a base unit. [Figure 51] 10 is a diagram showing another embodiment of a sensor unit and a base unit. DETAILED DESCRIPTION OF THE INVENTION

[0036] Hereinafter, an applicator for a transcutaneous sensor and an applicator assembly according to the present invention will be described in detail with reference to the drawings.

[0037] FIG. 1 is a perspective view showing an applicator assembly according to one embodiment of the present invention.

[0038] The applicator assembly 10 according to one embodiment of the present invention includes a sensor unit 100 having a sensor 110 that is inserted into the skin of a user to measure biological information, a base unit 200 that is combined with the sensor unit 100 to form the body-attachable unit 20, and an applicator 30 for attaching the body-attachable unit 20 to the user's skin. The applicator assembly 10 is provided to the user with the sensor unit 100 and the base unit 200 separately attached to the applicator 30. The sensor unit 100 and the base unit 200 can be automatically assembled by the action of the applicator 30 and attached to the user's skin.

[0039] 2, the body-attachable unit 20 is attached to the user's skin by an applicator 30 to measure biological information and wirelessly transmit the measurement data to an external terminal 5. The external terminal 5 can be a variety of devices capable of receiving measurement data from the body-attachable unit 20, such as the user's mobile terminal, a dedicated medical device, a PC, or a server. The biological information that can be measured by the body-attachable unit 20 is not limited to a specific one. As an exemplary embodiment, the body-attachable unit 20 can periodically measure the user's blood glucose and transmit the blood glucose measurement information to the external terminal 5.

[0040] 3, the body-attachable unit 20 includes a sensor unit 100 for measuring biometric information of a user and a base unit 200 that is attached to the user's skin and coupled to the sensor unit 100. The base unit 200 has electronic components installed therein. The base unit 200 is electrically connected to the sensor unit 100 and can process the biometric information measured by the sensor unit 100 and transmit it to an external terminal 5.

[0041] As shown in Figures 4 to 10, the sensor unit 100 includes a sensor 110 that is inserted into the user's skin, a sensor unit housing 120 to which the sensor 110 is coupled, a sensor unit electrical contact 146 that is coupled to the sensor unit housing 120 and electrically connected to the sensor 110, a sensor adhesive 149 and adhesive pad 152 for fixing the sensor 110 to the sensor unit housing 120, an adhesive layer 155 provided on the sensor unit housing 120 to attach to the base unit 200, and a protective sheet 160 that covers the adhesive layer 155.

[0042] The sensor 110 includes a sensor body 111, a connecting portion 112 connected to one side of the sensor body 111, a middle portion 113 connected to the sensor body 111 via the connecting portion 112, and an insertion portion 116 connected to the middle portion 113 so as to be inserted into the user's skin. The sensor body 111 is disposed inside the sensor unit housing 120 so as to be in contact with the sensor unit electrical contact portion 146. The sensor body 111 is provided with electrodes that are electrically connected to the sensor unit electrical contact portion 146. The connecting portion 112 extends from the edge of the sensor body 111 and connects the sensor body 111 and the middle portion 113 so that they are placed on different planes. The sensor 110 is manufactured such that the sensor body 111 is fabricated in a flat shape with the middle portion 113 and the insertion portion 116 on the same plane, and then the connecting portion 112 is bent so that the sensor body 111 is placed on different planes from the middle portion 113 and the insertion portion 116.

[0043] The middle part 113 and the insertion part 116 are connected to the sensor body 111 so as to be placed on a different plane from the sensor body 111. In the drawings, the middle part 113 and the insertion part 116 are shown to be placed on the same plane and the middle part 113 is shown to be placed perpendicular to the sensor body 111, but the angle between the middle part 113 and the sensor body 111 and the angle between the insertion part 116 and the sensor body 111 can be changed in various ways.

[0044] The middle portion 113 includes a first extension portion 114 that protrudes from one side of the connecting portion 112 and a second extension portion 115 that protrudes from the connecting portion 112 in the opposite direction to the first extension portion 114. The insertion portion 116 is connected to the first extension portion 114 and is inserted into the user's skin. The insertion portion 116 is relatively thin and long so that it can be smoothly inserted into the user's skin. The connecting portion 112, middle portion 113, and insertion portion 116 are provided with conductive traces that are electrically connected to the electrodes of the sensor body 111. The sensor 110 is coupled to the sensor unit housing 120 so that the sensor body 111, the connecting portion 112, and the middle portion 113 are located inside the sensor unit housing 120 and only the insertion portion 116 protrudes from the sensor unit housing 120.

[0045] The sensor unit housing 120 includes a housing base 121 and a housing cap 134 that covers the top of the housing base 121. A space for accommodating the sensor 110 is provided inside the sensor unit housing 120, and a housing opening 140 is formed in the middle of the sensor unit housing 120 so as to penetrate the sensor unit housing 120 in the thickness direction, into which a needle 450 is inserted to insert the sensor 110 into the user's skin.

[0046] The housing base 121 includes a base portion 122 that supports the sensor body 111 of the sensor 110 and a boss 127 that protrudes from the surface of the base portion 122. A base portion hole 123 is formed on one side of the base portion 122 to penetrate the base portion 122, and a through hole 124 is formed on the other side of the base portion 122 to penetrate the base portion 122. A sensor unit electrical contact 146 is coupled to the through hole 124. A detent groove 125 is formed on the edge of the base portion 122.

[0047] The bosses 127 protrude from both sides of the base portion 122, away from the surface on which the sensor 110 is placed. The bosses 127 have boss holes 128 formed therethrough. The boss holes 128 are connected to the base portion holes 123 and together with the base portion holes 123 form a housing base hole 132. The boss holes 128 include an upper hole 129 connected to the base portion hole 123 and a lower hole 130 connected to the upper hole 129 and extending to the end of the boss 127. The upper hole 129 is larger than the lower hole 130. The upper hole 129 is sized to accommodate the middle portion 113 of the sensor 110 and a portion of the needle 450, and the lower hole 130 is sized to accommodate the insertion portion 116 of the sensor 110 and a portion of the needle 450. The upper hole 129 is provided with a support 131 that can support the middle portion 113 of the sensor 110. Since the base part 131 supports the middle part 113 , the sensor 110 does not move while coupled to the sensor unit housing 120 and can maintain a stable coupled state with the sensor unit housing 120 .

[0048] The housing cap 134 is coupled to the housing base 121 and covers the sensor body 111 of the sensor 110 placed on the housing base 121 and the upper part of the housing base 121. A housing cap hole 135 is formed in the middle of the housing cap 134, penetrating the housing cap 134 in the thickness direction. The housing cap hole 135 is connected to the housing base hole 132 of the housing base 121 to form a housing opening 140. A needle 450 for inserting the sensor 110 into the user's skin is inserted into the housing opening 140 together with the sensor 110. The housing cap 134 is formed with a detent protrusion 138 that corresponds to the detent groove 125 of the housing base 121. The housing cap 134 is coupled to the housing base 121 in such a way that the detent protrusion 138 is inserted into the detent groove 125 and engages with the housing base 121. A protrusion 137 and a retention protrusion 136 are formed on the inner surface of the housing cap 134 facing the housing base 121. The protrusion 137 and the retention protrusion 136 protrude toward the housing base 121. The protrusion 137 and the retention protrusion 136 come into contact with the sensor 110 to prevent the sensor 110 from moving, thereby stably fixing the sensor 110 to the sensor unit housing 120. The protrusion 137 comes into contact with the sensor body 111 of the sensor 110 to press the sensor body 111 toward the housing base 121. Therefore, the sensor body 111 does not float away from the housing base 121, and can remain stably fixed to the housing base 121.

[0049] 6 and 7, when the housing cap 134 is coupled to the housing base 121, the retention protrusion 136 is inserted into the housing base hole 132 and comes into contact with the sensor 110. That is, the retention protrusion 136 is disposed such that its end faces the second extension portion 115 of the middle portion 113 inserted into the housing base hole 132, thereby restricting the movement of the middle portion 113 so that the middle portion 113 of the sensor 110 does not lift up from the base portion 131. Due to the action of the retention protrusion 136, the insertion portion 116 of the sensor 110 can be stably maintained in a state where it protrudes by a certain length from the sensor unit housing 120. Furthermore, due to the action of the retention protrusion 136, the insertion portion 116 of the sensor 110, when inserted into the user's skin, does not retract from the user's skin and can be maintained in a state where it is inserted into the user's skin at a certain depth.

[0050] 8, after the insertion portion 116 is inserted into the user's skin together with the needle 450, the retention protrusion 136 prevents the middle portion 113 from moving as the needle 450 slides through the user's skin, so the insertion portion 116 cannot retract in the same direction as the needle 450. Therefore, it is possible to prevent the insertion portion 116, which has been inserted into the user's skin, from moving in the direction of sliding through the user's skin as the needle 450 slides through the user's skin. It is also possible to prevent the insertion portion 116 from partially sliding through the skin, which would reduce the measurement accuracy of the sensor 110.

[0051] The housing cap 134, together with the base portion 122, constitutes the housing body 142. That is, the sensor unit housing 120 may be configured to include the housing body 142 and a boss 127 protruding from one side of the housing body 142. As shown in Figures 12 and 13, the housing body 142 is shaped to be fitted and coupled to the 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.

[0052] The sensor unit housing 120 is not limited to the illustrated configuration and may be modified into various other configurations in which the sensor 110 is mounted and coupled to the base unit 200. That is, the sensor unit housing 120 includes the housing base 121 and the housing cap 134, but may be modified into various other configurations other than the configuration including the housing body 142 and the boss 127 protruding from the housing body 142.

[0053] The sensor unit electrical contact 146 is disposed in the sensor unit housing 120 so as to be electrically connected to the sensor body 111 of the sensor 110. The sensor unit electrical contact 146 is inserted into the through-hole 124 of the base part 122 and is disposed so as to penetrate the base part 122 from top to bottom. The sensor unit electrical contact 146 may include a plurality of terminals 147 for transmitting electrical signals. One portion of the sensor unit electrical contact 146 is exposed to one surface of the base part 122 where the sensor body 111 of the sensor 110 is located, and the other portion is exposed to the other surface of the base part 122, thereby electrically connecting the sensor 110 to the base unit electrical contact 225 of the base unit 200.

[0054] The sensor adhesive part 149 is disposed between the housing base 121 and the sensor body 111 of the sensor 110 to attach the sensor body 111 to the housing base 121. The sensor adhesive part 149 has adhesive properties on both sides. That is, one side of the sensor adhesive part 149 is adhered to the housing base 121, and the other side of the sensor adhesive part 149 is adhered to the sensor body 111. A sensor adhesive part opening 150 is formed in the middle of the sensor adhesive part 149, penetrating the sensor adhesive part 149 in the thickness direction. The sensor body 111 of the sensor 110 contacts the sensor unit electrical contact 146 through the sensor adhesive part opening 150. Therefore, the sensor adhesive part 149 seals the gap between the sensor body 111 and the sensor unit electrical contact 146, preventing moisture or foreign matter from entering the electrical connection 170 between the sensor body 111 and the sensor unit electrical contact 146.

[0055] The shape of the sensor attachment part 149 is not limited to that shown in the drawings and can be modified in various ways.

[0056] The adhesive pad 152 is disposed between the housing cap 134 and the sensor body 111 of the sensor 110 to attach the sensor body 111 to the housing cap 134. The adhesive pad 152 has adhesive properties on both sides. That is, one side of the adhesive pad 152 is attached to the housing cap 134, and the other side of the adhesive pad 152 is attached to the sensor body 111. An adhesive pad groove 153 is formed in the adhesive pad 152 so as to penetrate the adhesive pad 152 in the thickness direction. The protrusion 137 of the housing cap 134 comes into contact with the sensor body 111 through the adhesive pad groove 153, thereby pressing the sensor body 111 toward the housing base 121.

[0057] The shape of the adhesive pad 152 is not limited to that shown in the drawings and can be changed in various ways.

[0058] The adhesive layer 155 is disposed on the surface of the housing base 121. Both sides of the adhesive layer 155 are adhesive. One side of the adhesive layer 155 is attached to the housing base 121, and the other side of the adhesive layer 155 is covered with a protective sheet 160. After the protective sheet 160 is removed, the adhesive layer 155 is attached to the base unit 200. An adhesive layer hole 156 is formed in the middle of the adhesive layer 155, penetrating the adhesive layer 155 in the thickness direction. The sensor unit electrical contact 146 can contact the base unit electrical contact 225 of the base unit 200 through the adhesive layer hole 156. Therefore, the adhesive layer 155 seals between the sensor unit electrical contact 146 and the base unit electrical contact 225, preventing moisture and foreign matter from entering the electrical connection 250 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, penetrating 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 contacts 146 are located inside the adhesive layer holes 156 and the bosses 127 are inserted into the adhesive layer openings 157 .

[0059] The shape of the adhesive layer 155 is not limited to that shown in the drawings and can be changed in various ways.

[0060] The protective sheet 160 covers and protects the adhesive layer 155. The protective sheet 160 is made of a material that can be detachably attached to the adhesive layer 155. If the adhesive layer 155 is left exposed to air for a long period of time, the adhesiveness of the adhesive layer 155 may deteriorate. By covering the adhesive layer 155, the protective sheet 160 prevents the adhesive layer 155 from losing its adhesiveness and makes it easier for workers to handle the sensor unit 100 during the process of manufacturing the sensor unit 100 and the process of assembling the sensor unit 100 to the applicator 30. The protective sheet 160 includes a protective portion 161 that is attached to the adhesive layer 155 and wing portions 164 that extend from the edges of the protective portion 161. A protective sheet opening 162 is formed on one side of the protective portion 161 so as to penetrate the protective portion 161 in the thickness direction. The protective sheet 160 is attached to the adhesive layer 155 so that the boss 127 is inserted into the protective sheet opening 162. The wing portion 164 has a protection sheet groove 165 formed therein so as to penetrate the wing portion 164 in the thickness direction. The wing portion 164 extends from the edge of the sensor unit housing 120 by a certain length and is coupled to the removing unit 500 of the applicator 30.

[0061] The shape of the protective sheet 160 is not limited to that shown in the drawings and can be changed in various ways.

[0062] 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 may be 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 toward the base unit 200 and is connected to the base unit 200.

[0063] 11 to 13, 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 substrate 223, a base unit electrical contact 225 that contacts the sensor unit electrical contact 146 of the sensor unit 100, and a battery 228. A processor chip for processing signals and a communication chip for wireless communication with the external terminal 5 are mounted on the substrate 223.

[0064] The base unit housing 210 has an insertion hole 211 through which the insertion portion 116 and needle 450 of the sensor 110 can pass, and a mounting portion 212 to which the sensor unit housing 120 is coupled. 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 configured to fit and couple with the boss 127 of the sensor unit 100 and is disposed inside the base unit recess 213. The contact surface 216 is flat so that the adhesive layer 155 of the sensor unit 100 can be stably attached. The base unit recess 213 includes a first recess 214 connected to the insertion hole 211 and a second recess 215 located farther 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 has a shape corresponding to the body portion 143 of the sensor unit housing 120, and the second recess 215 has a shape corresponding to the cover portion 144 of the sensor unit housing 120. Therefore, the sensor unit housing 120 is fitted and coupled to the base unit recess 213, thereby maintaining a stable coupling state with the base unit housing 210. Furthermore, since the sensor unit housing 120 is stably fitted and coupled to the base unit housing 210, moisture or foreign matter does not easily enter 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 a locking hook 325 provided on the applicator 30 is inserted into the housing groove 217.

[0065] The base unit electrical contacts 225 are disposed in the mounting portion 212 and contact the sensor unit electrical contacts 146 of the sensor unit 100 when the sensor unit 100 is coupled to the base unit 200. The base unit electrical contacts 225 are electrically connected to the substrate 223 and are installed in the base unit housing 210 such that a portion of the base unit electrical contacts 225 is exposed in the base unit recess 213. The base unit electrical contacts 225 may include a plurality of terminal portions 226 for transmitting electrical signals. The terminal portions 226 contact the terminal portions 147 of the sensor unit 100 to electrically connect the sensor unit electrical contacts 146 and the substrate 223.

[0066] As shown, the base unit housing 210 may include a lower housing 219 and an upper housing 221 covering the upper part of the lower housing 219, but the configuration thereof may be varied in various ways.

[0067] An adhesive part 230 is provided on the surface of the base unit housing 210. The adhesive part 230 is attached to the surface of the lower housing 219 to allow the base unit housing 210 to adhere to the user's skin. An adhesive hole 231 is formed in the middle of the adhesive part 230 so as to penetrate the adhesive part 230 in the thickness direction, through which the insertion part 116 of the sensor 110 and the needle 450 can pass.

[0068] The adhesive portion 230 is protected by being covered with 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. The sensor unit 100 and the base unit 200 are installed in an applicator 30 while separated from each other, and are coupled to each other when the applicator 30 is operated to insert the sensor 110 into the user's skin, forming the body-attachable unit 20. The sensor unit 100, with the needle 450 coupled to it, is attached to the applicator 30, and moves toward the base unit 200 with the needle 450 coupled to it, and is coupled to the base unit 200. After the sensor unit 100 is coupled to the base unit 200, the needle 450 is separated from the sensor unit 100, leaving only the body-attachable unit 20 on the user's skin. 14 to 16, the applicator 30 is operated with the sensor unit 100 and the base unit 200 attached to it, combines the sensor unit 100 with the base unit 200, and attaches the combined body-attachable unit 20 to the user's skin. The sensor unit 100 and the base unit 200 are spaced apart and attached to the applicator 30. After attaching the body-attachable unit 20 to the user's skin, the applicator 30 is separated from the body-attachable unit 20, and the body-attachable unit 20 remains attached to the user's skin by the adhesive part 230.

[0069] The applicator 30 includes an applicator body 300 to which the base unit 200 is detachably coupled, an insertion unit 400 that moves the sensor unit 100 to insert the sensor 110 into the user's skin, and a removing unit 500 that removes the protective sheet 160 of the sensor unit 100. The insertion unit 400 can move the sensor unit 100 from a first position spaced a predetermined distance from the base unit 200 to a second position where it is coupled to the base unit 200. The sensor unit 100 and the base unit 200 are coupled at the second position to form the body-attachable unit 20.

[0070] The applicator body 300 includes a base frame 310 on which the insertion unit 400 is installed, a middle frame 330 disposed on the base frame 310 and on which the removing unit 500 is installed, and a top case 350 coupled to the middle frame 330 and covering the top of the middle frame 330.

[0071] The base frame 310 includes a frame base 311 having a bottom 312 that can come into contact with the user's skin, and a column 318 that protrudes from the frame base 311 and accommodates the sensor unit 100 and the insertion unit 400. The bottom 312 of the frame base 311 is provided with a recess 313 to which the base unit 200 is attached. The base unit 200 is detachably coupled to the recess 313 with the adhesive portion 230 facing the user's skin, and is placed in a second position spaced apart from the sensor unit 100. The frame base 311 is formed with through-holes 314 that penetrate the frame base 311 in the thickness direction. A pair of through-holes 314 are provided on both sides of the column 318, with the column 318 sandwiched between them. A support 316 to which a locking hook 325 is coupled is provided at the top of the through-hole 314.

[0072] Slits 319 are formed on both sides of the column portion 318 in a direction parallel to the movement direction of the sensor unit 100. A release portion 320 is provided in the middle of the slit 319. The release portion 320 is a portion that can come into contact with a part of the carrier 422 of the insertion unit 400 as the carrier 422 moves toward the base unit 200. The release portion 320 releases the engagement of the carrier 422 with the plunger 410. The specific function 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 movement distance of the plunger 410. A retention portion 322 is provided inside the column portion 318. The retention portion 322 serves to support a plunger driver 418 that provides a moving force to the plunger 410.

[0073] A locking hook 325 that engages with the base unit 200 attached to the recess 313 is coupled to the support part 316 of the base frame 310. The locking hook 325 engages with the base unit 200 to secure the base unit 200 so that it does not come off the recess 313. The locking hook 325 disengages from the base unit 200 after the body-attachable unit 20 is attached to the user's skin. The locking hook 325 is pivotally coupled to the support part 316. The locking hook 325 includes a pivot part 326 rotatably coupled to the support part 316, a hook part 327 connected to the pivot part 326, and a rod 328 protruding from the pivot part 326. The hook part 327 can be inserted into the housing groove 217 of the base unit 200 to engage with the base unit 200. The hook portion 327 protrudes from one side of the pivot portion 326, and the rod 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 the hook portion 327 is located within the recess 313 of the base frame 310. The locking hook 325 is engaged with and released from the base unit 200 in conjunction with the moving member 510 of the removing unit 500. The function of the locking hook 325 will be described in more detail below.

[0074] The specific configuration of the base frame 310 is not limited to that shown in the drawings and can be modified in various ways.

[0075] The middle frame 330 includes an outer frame 331 coupled to the base frame 310, a stage 333 disposed inside the outer frame 331, and a support 339 protruding from the stage 333. The outer frame 331 is provided with a hook portion 332 that can engage with the top case 350. The stage 333 is disposed on the frame base portion 311. A middle frame opening 334 is formed in the middle of the stage 333, into which the column portion 318 is inserted. Through holes 335 are formed on both sides of the middle frame opening 334, into which the rod 328 of the locking hook 325 is inserted. The rod 328 passes through the through holes 335 and protrudes onto the stage 333. The stage 333 is provided with a guide rail 336 and a fixed protrusion 337. The guide rail 336 serves to guide the moving member 510 for linear movement. The fixed protrusion 337 supports a moving member driver 522 that provides a moving force to the moving member 510. The support base 339 is provided with an elastically deformable stopper 341 for restricting the movement of the moving member 510 .

[0076] An actuating member 345 capable of operating the insertion unit 400 and the removing unit 500 is installed on the support base 339. The actuating member 345 includes a button portion 346, a pressure protrusion 347 protruding from the button portion 346 to contact the stopper 341, and a pivot portion 348 inserted into a coupling hole 342 of the support base 339. The actuating member 345 can rotate around the pivot portion 348. When a user presses the button portion 346, the actuating member 345 rotates, causing the pressure protrusion 347 to press the stopper 341. At this time, the stopper 341 is elastically deformed and disengaged from the moving member 510. In addition to the configuration shown in the drawings, the actuating member 345 can be modified into various other configurations that can be installed on the applicator body 300 to be operated by the user and operate the insertion unit 400 and the removing unit 500.

[0077] The specific configuration of the middle frame 330 is not limited to that shown in the drawings and may be variously modified. In another exemplary embodiment, the middle frame 330 is integral with the base frame 310.

[0078] The top case 350 is coupled to the middle frame 330 and covers the upper part of the middle frame 330 and the base frame 310. A top case opening 351 is formed on one side of the top case 350 so that the support 339 of the middle frame 330 can be coupled thereto. The top case 350 has coupling holes 352, and is coupled to the middle frame 330 by engaging the hooks 332 of the middle frame 330 with the coupling holes 352.

[0079] The specific configuration of the top case 350 is not limited to that shown in the drawings and may be modified in various ways. The method of coupling the top case 350 and the middle frame 330 may also be modified in various ways.

[0080] The insertion unit 400 is installed in the applicator body 300 so as to move in conjunction with the moving member 510 of the removing unit 500, and is capable of moving the sensor unit 100 from the first position to the second position and inserting the sensor 110 into the user's skin. The insertion unit 400 includes a plunger 410 movably installed in the middle frame 330, and a needle assembly 421 having a needle 450 that moves together with the plunger 410 and is inserted into the user's skin.

[0081] The plunger 410 is installed inside the column portion 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 movement range of the plunger 410. The plunger hook 411 protrudes from the plunger 410 and can limit the movement of the plunger 410 by contacting a detent portion 321 of the column portion 318 when the plunger 410 moves to the second position. A plunger protrusion 412 is provided on the other side of the plunger 410. The plunger protrusion 412 protrudes from the plunger 410 to engage with the moving member 510. The plunger 410 is fixed at the first position by the plunger protrusion 412 engaging with the moving member 510, and can move to the second position when the plunger protrusion 412 is disengaged from the moving member 510.

[0082] A pair of slits 413 are formed on both sides of the plunger 410 in parallel with the movement direction of the sensor unit 100. A detent portion 414 is provided in the middle of the slit 413 and can engage with a latch portion 437 of the carrier 422. 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.

[0083] The plunger 410 is provided on its inner side with a retention portion 415 and a fixing portion 416. The retention portion 415 supports a plunger driver 418. A needle release driver 480 that provides a moving force to the carrier 422 is coupled to the fixing portion 416.

[0084] The plunger 410 moves when a moving force is provided from the plunger driver 418. The plunger driver 418 includes an elastic member 419 that applies an elastic force to the plunger 410 in a direction to move it from the first position to the second position. One end of the elastic member 419 contacts the retention portion 322 of the column portion 318, and the other end contacts the retention portion 415 of the plunger 410. The plunger 410 is fixed at the first position by engaging with the moving member 510 with the elastic member 419 elastically deformed. The plunger driver 418 may be modified to have various other configurations that can provide a moving force to the plunger 410, other than a configuration including the elastic member 419 in the form of a coil spring.

[0085] 14 to 19, needle assembly 421 includes a carrier 422 to which sensor unit 100 is detachably coupled, and a needle 450 coupled to carrier 422 so as to penetrate sensor unit 100. Needle 450, coupled to sensor unit 100, advances from a first position to a second position together with sensor unit 100 and is inserted into the user's skin, and then retracts together with carrier 422 at the second position to be separated from the user's skin and sensor unit 100.

[0086] The carrier 422 is coupled to the plunger 410 so as to be relatively movable. A portion of the carrier 422 engages with the plunger 410, so that the carrier 422 can move from the first position to the second position together with the plunger 410. At the second position, the carrier 422 is disengaged from the plunger 410 and can move backward in a direction away from the sensor unit 100.

[0087] The carrier 422 includes a carrier body 423 to which the needle 450 is coupled, 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 .

[0088] The carrier body 423 includes a boss 424 having an insertion groove 425 formed therein. A portion of the needle 450 is inserted into the insertion groove 425. A clamp portion 427 for fixing the needle 450 is provided within the insertion groove 425. The clamp portion 427 includes a hook 428 that can engage with the needle 450. One side of the carrier body 423 is provided with a fixing portion 429 to which a needle release driver 480 is coupled. The carrier 422 can move relative to the plunger 410 by the needle release driver 480.

[0089] The needle release driver 480 provides a moving force to the carrier 422. The needle release driver 480 includes an elastic member 481 having one end connected to the fixing portion 416 of the plunger 410 and the other end connected to the fixing portion 429 of the carrier 422. The elastic member 481 is in the form of a tension spring and applies an elastic force to pull the carrier 422 toward the fixing portion 416 of the plunger 410. That is, the elastic member 481 applies an elastic force to the carrier 422 in a direction away from the sensor unit 100, thereby moving the needle 450 connected to the carrier 422 so that it is separated from the sensor unit 100. The needle release driver 480 may be modified to have various other structures that can provide a moving force to the carrier 422, in addition to a structure including an elastic member 481 in the form of a coil spring.

[0090] The carrier wing 431 is connected to the carrier body 423 in a shape extending from the carrier body 423 in the movement direction of the carrier 422. The carrier wing 431 includes a wing body 432 elastically connected to the carrier body 423, and a trigger 434 and a latch portion 437 protruding from the wing body 432.

[0091] 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, 319. The trigger 434 is inserted into the slit 413, 319 and guided by the slit 413, 319, allowing the carrier 422 to move linearly more stably. 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 together with the plunger 410 from the first position to the second position, the trigger 434 can come into contact with the release portion 320 disposed in the middle of the slit 319 of the column portion 318.

[0092] 15, release portion 320 is disposed in the middle of slit 319 of column portion 318 so as to be able to apply pressure to trigger 434. When carrier 422 moves from the first position to the second position, trigger 434 may come into contact with release portion 320, causing carrier wing 431 to elastically deform. Trigger 434 is provided with trigger inclined portion 435 that comes into contact with release portion 320. When carrier 422 moves from the first position to the second position, trigger inclined portion 435 comes into contact with release portion 320, causing carrier wing 431 to elastically deform more smoothly, reducing the impact generated when trigger 434 comes into contact with release portion 320, and allowing the pressure of release portion 320 to be transmitted to trigger 434 more smoothly.

[0093] 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 height at which the latch portion 437 protrudes from the wing body 432 is lower than the height at which the trigger 434 protrudes from the wing body 432. The latch portion 437 can engage with the detent portion 414 of the plunger 410. When the latch portion 437 is engaged with the detent portion 414, the carrier 422 can maintain a state in which the elastic member 481 is elastically deformed, and cannot move in the direction in which the elastic force of the needle release driver 480 acts.

[0094] The locking arms 439 are provided on the sides of the carrier body 423 in an elastically deformable manner. A pair of locking arms 439 are arranged facing each other on both sides of the carrier body 423 to detachably secure the sensor unit housing 120 of the sensor unit 100. The locking arms 439 are provided with locking protrusions 440 that engage with the sensor unit housing 120 and protrusions 441 that contact the inner wall 323 of the column portion 318. As shown in FIG. 14 , when the carrier 422 and the sensor unit 100 are located in the first position, the protrusions 441 contact the inner wall 323 of the column portion 318, causing the locking arms 439 to be deflected in a direction that engages with the sensor unit housing 120. Therefore, the sensor unit 100 can be maintained stably coupled to the carrier 422 in the first position.

[0095] Meanwhile, when the sensor unit 100 and the 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 comes off 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, because 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-attachable unit 20 by the needle release driver 480, the locking arm 439 smoothly disengages from the sensor unit 100 and is separated from the sensor unit 100.

[0096] In addition to the illustrated configuration, the carrier 422 may be modified into various other configurations that are coupled to the needle 450 and are installed so as to be movable relative to the plunger 410. For example, although the drawings show 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 may be modified 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 may also be modified in various ways.

[0097] The needle 450 is fixed to the carrier 422 and can move from a first position to a second position while coupled to the sensor unit 100. The needle 450 has a pointed end so that it can be smoothly inserted through 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. The needle 450 is separated from the user's skin after the sensor 110 is inserted into the user's skin.

[0098] The needle 450 includes a needle body 451 that is inserted into the user's skin and a needle head 458 that is coupled to the carrier 422. The needle head 458 has a needle hole 465 that engages with the clamp portion 427 of the carrier 422. The needle 450 is fixed to the carrier 422 by inserting the needle head 458 into the insertion groove 425 of the carrier 422 and inserting the hook 428 into the needle hole 465. The needle 450 is integrally formed by pressing the needle body 451 and the needle head 458 from the same base material. This needle 450 has a simple structure, is easy to manufacture, and has low manufacturing costs. In addition, the needle 450 can be easily assembled to the carrier 422 by simply inserting the needle head 458 into the insertion groove 425 of the carrier 422. When the needle head 458 is inserted into the insertion groove 425 to a certain depth, the hook 428 of the carrier 422 is inserted into the needle hole 465 of the needle head 458 , thereby firmly fixing the needle 450 to the carrier 422 .

[0099] 14 to 16 and 20 to 30, 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 the second position and is coupled to the base unit 200. The removing unit 500 includes a moving member 510 that is movably installed on the middle frame 330 to be coupled to the protective sheet 160, and a moving member driver 522 that applies a moving force to the moving member 510 to move the moving member 510.

[0100] The moving member 510 is disposed on the stage 333 of the middle frame 330 so as to move linearly. The moving member 510 is installed so as to move in a direction approximately perpendicular to and intersecting with the direction in which the sensor unit 100 moves from the first position to the second position. The moving member 510 moves while coupled to the protective sheet 160, thereby attracting the protective sheet 160 so as to separate it from the adhesive layer 155. Specifically, the moving member 510 can move from a third position where the protective sheet 160 is coupled to the protective sheet 160 while covering the adhesive layer 155, to a fourth position where the protective sheet 160 is separated from the adhesive layer 155. The moving member 510 can also function as a stopper that fixes the plunger 410 at the first position. That is, the moving member 510 contacts the plunger 410 positioned at the first position from the third position to fix the plunger 410 at the first position, and when moving to the fourth position, it disengages from the plunger 410 so that the plunger 410 moves to the second position.

[0101] The moving member 510 includes a moving member body 511, a base portion 518 for supporting the plunger 410, and a grip portion 520 coupled to the protection sheet 160.

[0102] The movable member body 511 is formed with a movable member opening 512 and a movable member groove 513 penetrating 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 protrusion 514 connected to a movable member driver 522 is formed within the movable member groove 513. A rail portion 515 is formed 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. Although the drawing shows the guide rail 336 in a groove shape and the rail portion 515 inserted into the guide rail 336, the guide rail 336 and the rail portion 515 can be modified into various other shapes that can guide the movable member body 511 to stably move linearly on the stage 333.

[0103] A pair of base pads 518 are disposed on both side edges of the movable member opening 512, facing each other. The base pads 518 protrude from the movable member body 511 to support the plunger protrusion 412 of the plunger 410. The length of the base pad 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 located at the third position, the base pad 518 supports the plunger protrusion 412 of the plunger 410, thereby fixing the plunger 410 at the first position. When the movable member 510 moves to the fourth position, the base pad 518 disengages from the plunger protrusion 412, allowing the plunger 410 to move to the second position. In addition to a shape that protrudes from the movable member body 511, the base pad 518 may be modified into various other shapes that can support the plunger protrusion 412 or a portion of the plunger 410.

[0104] The grip portion 520 is connected to the moving member body 511 so as to be positioned within the moving member opening 512. The grip portion 520 is coupled to the wing portion 164 of the protection sheet 160 by inserting a portion of it into the protection sheet groove 165 of the protection sheet 160. The coupling method between the moving member 510 and the protection sheet 160 can be changed to various other methods other than the method using the grip portion 520. In another exemplary embodiment, the moving member 510 is coupled to the protection sheet 160 by an adhesive method or by engaging with the edge of the protection sheet 160.

[0105] The moving member driver 522 provides a moving force to the moving member 510 to move the moving member 510 from the third position to the 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 biases the moving member 510 to the fourth position. The elastic member 523 is inserted into the moving member groove 513 of the moving member 510, and one end is connected to the fixed protrusion 337 of the middle frame 330 and the other end is connected to the fixed protrusion 514 of the moving member 510. The moving member driver 522 may be modified in various other forms that can provide a moving force to the moving member 510 other than the configuration including the elastic member 523 in the form of a coil spring.

[0106] 20, the moving member 510 is fixed in the third position by engaging with a stopper 341 provided on the middle frame 330 and elastically deforming the elastic member 523. A portion of the stopper 341 is inserted into the moving member opening 512 of the moving member 510 and engages with the moving member 510. The stopper 341 is released by the operating member 345, thereby removing the restraining force on the moving member 510. That is, as shown in FIG. 23, when the user presses the operating member 345, the operating member 345 can deflect the stopper 341 so that it is disengaged from the moving member 510.

[0107] 24 and 25 show a state in which the movable member 510 is engaged with the stopper 341 and fixed at the third position. At this time, the movable member 510 supports the plunger 410 to fix the plunger 410 at the first position, and the protective sheet 160 coupled to the movable member 510 maintains a state in which it covers the adhesive layer 155.

[0108] 26 and 27 show the movable member 510 disengaged from the stopper 341. At this time, the movable member 510 moves to the fourth position, pulling the protective sheet 160. Therefore, the protective sheet 160 is separated from the adhesive layer 155, and the plunger 410 is released from the movable member 510 and can be moved to the second position by the plunger driver 418.

[0109] If the length of the base 518 supporting the plunger protrusion 412 of the plunger 410 is made sufficiently long, the moving member 510 can be released from the plunger 410 after completely separating the protective sheet 160 at the adhesive layer 155. In this case, the separating operation of the protective sheet 160 is completed with the sensor unit 100 positioned at the first position, and then the sensor unit 100 can move to the second position. Depending on the length of the base 518, it is also possible for the plunger 410 to start moving toward the second position during the separating operation of the protective sheet 160.

[0110] As described above, 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 also move the locking hook 325 that secures the base unit 200. To this end, a guide portion 516 that engages with the locking hook 325 is provided on one surface of the movable member body 511 that faces the stage 333 of the middle frame 330.

[0111] The guide portion 516 has a groove shape that is inclined relative to the moving direction of the movable member 510 so that the end of the rod 328 of the locking hook 325 can engage with the guide portion 516. As the end of the rod 328 engages with the guide portion 516, the locking hook 325 can rotate in conjunction with the movable member 510. As shown in Fig. 28, 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 movable member 510.

[0112] As shown in FIGS. 25 and 29, when the moving member 510 is located at the third position, the guide portion 516 biases the locking hook 325 in a direction in which the hook portion 327 engages with the base unit 200.

[0113] 27 and 30, 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 rod 328 of the locking hook 325 is pulled by the guide portion 516 in a direction closer to the movable member opening 512 of the movable member 510. At this time, the locking hook 325 rotates around the pivot portion 326, and is biased so that the hook portion 327 disengages from the base unit 200.

[0114] Due to the function of the movable member 510, the locking hook 325 remains stably engaged with the base unit 200 when the movable member 510 is located at 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 is moved to the fourth position, the locking hook 325 disengages from the base unit 200, allowing the base unit 200 to be separated from the applicator body 300. Therefore, after the sensor unit 100 is coupled with the base unit 200 to assemble the body-attachable unit 20, the body-attachable unit 20 can be smoothly separated from the applicator 30 while still attached to the user's skin by the adhesive part 230.

[0115] Although the guide portion 516 is shown in the drawing as being in the form of a groove, the guide portion may be modified into various other shapes that can engage with the locking hook 325 and deflect the locking hook 325 according to the movement of the moving member 510. Depending on the shape of the guide portion, the locking hook may also be modified into various other configurations that can detachably engage with the base unit 200.

[0116] Hereinafter, a specific process of attaching the body attachment unit 20 to the user's skin using the applicator 30 according to an embodiment of the present invention will be described with reference to FIGS. 31 to 36.

[0117] 31 and 32, first, the bottom 312 of the applicator 30 is placed on the user's skin so that the base unit 200 is attached to the user's skin via the adhesive portion 230. Before the actuation member 345 is operated, the sensor unit 100 coupled to the carrier 422 is positioned at 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 at the third position.

[0118] Thereafter, by pressing the actuation member 345, the movable member 510 disengages from the stopper 341, and the movable member 510 is moved to the fourth position by the movable member driver 522. As shown in Figures 33 and 34, 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 is released from the movable member 510 and moved to the second position by the plunger driver 418. At this time, the insertion portion 116 and the 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-attachable unit 20.

[0119] As described above, the adhesive layer 155 connects the sensor unit 100 and the base unit 200 and provides a seal between the sensor unit electrical contact 146 of the sensor unit 100 and the base unit electrical contact 225 of the base unit 200. The adhesive layer 155 seals the electrical connection 250 between the sensor unit 100 and the base unit 200, preventing moisture, foreign matter, bodily fluids, etc. from entering the electrical connection 250 between the sensor unit 100 and the base unit 200 during the process of attaching the body-attachable unit 20 to the user's skin and measuring a biosignal. This reduces the risk of malfunctioning of the body-attachable unit 20 and ensures stable operation of the body-attachable unit 20.

[0120] When the plunger 410 moves and the insertion portion 116 and the needle 450 are inserted into the user's skin, the trigger 434 of the carrier 422 comes into contact with the release portion 320 of the column portion 318. At this time, the carrier wings 431 of the carrier 422 are elastically deformed, and the latch portion 437 of the carrier 422 is disengaged from the detent portion 414 of the plunger 410.

[0121] When the carrier 422 is disengaged from the plunger 410, the carrier 422 moves away from the user's skin due to the elastic member 481 of the needle release driver 480, as shown in Figures 35 and 36. At this time, the needle 450 slips out of the user's skin, and the body attachment unit 20 remains attached to the user's skin by the adhesive part 230.

[0122] As described above, after the insertion portion 116 of the sensor 110 is inserted into the skin, as the needle 450 slides through the user's skin, the retention protrusion 136 of the sensor unit housing 120 comes into contact with the middle portion 113 of the sensor 110, restricting the movement of the insertion portion 116. Therefore, the insertion portion 116 cannot retract in the same direction as the needle 450, and can remain stably inserted into the skin.

[0123] When the sensor unit 100 is connected to the base unit 200 and the body-attachable unit 20 is assembled, the locking hook 325, which is engaged with the base unit 200, rotates in conjunction with the moving member 510. That is, the locking hook 325 is deflected by the moving member 510 so as to be disengaged from the base unit 200. Therefore, the body-attachable unit 20 is separated from the applicator 30 while attached to the user's skin.

[0124] The body-attachable unit 20, which is attached to the user's skin and separated from the applicator 30, can measure the user's biological information and transmit the measurement information to an external terminal 5 or the like.

[0125] As described above, in the applicator assembly 10 according to one embodiment of the present invention, the adhesive layer 155 of the sensor unit 100 is attached to the applicator 30 with the adhesive layer 155 covered with the protective sheet 160, so that the adhesiveness of the adhesive layer 155 does not deteriorate even after prolonged use. When the user operates the actuation member 345, the removing unit 500 is activated, automatically removing the protective sheet 160 from the sensor unit 100, and the sensor unit 100 is firmly attached to the base unit 200 by the adhesive layer 155. This makes it easy to use, and the body-attachable unit 20 can be more stably attached to the user's skin.

[0126] Meanwhile, Figures 37 to 44 are views showing an applicator assembly according to another embodiment of the present invention.

[0127] An applicator assembly 40 according to another embodiment of the present invention includes a sensor unit 600 for measuring biometric information of a user, a base unit 200 electrically connected to the sensor unit 600, and an applicator 700 for inserting a sensor of the sensor unit 600 into the skin of the user. Most of the configuration of the applicator assembly 40 is as described above, with some components of the sensor unit 600 and applicator 700 being modified.

[0128] The sensor unit 600 includes a sensor that is inserted into the user's skin together with the sensor unit 100 described above, a sensor unit housing to which the sensor is coupled, a sensor unit electrical contact portion that is coupled to the sensor unit housing and electrically connected to the sensor, a sensor adhesive portion and adhesive pad for fixing the sensor to the sensor unit housing, an adhesive layer provided on the sensor unit housing 120 to be attached to the base unit 200, and a protective sheet 610 that covers the adhesive layer, and the remaining components except for the protective sheet 610 are as described above.

[0129] The protective sheet 610 includes a protective portion 611 adhered to the adhesive layer and wing portions 614 extending from the edge of the protective portion 611. The length of the wing portions 614 is longer than the length of the protective portion 611. The wing portions 614 are bent at one end of the protective portion 611, completely traverse the protective portion 611, and extend outward from the other end of the protective portion 611. A protective sheet opening 612 is formed on one side of the protective portion 611 so as to penetrate the protective portion 611 in the thickness direction. The protective sheet 610 is attached to the adhesive layer so that the bosses 127 of the sensor unit 100 can be inserted into the protective sheet opening 612. The wing portions 614 are formed with protective sheet grooves 615 penetrating the wing portions 614 in the thickness direction. The wing portions 614 extend a certain distance from the edge of the sensor unit housing 120 and are coupled to the moving member 750 of the applicator 700. The protective sheet 610 is separated from the adhesive layer before the sensor unit 600 moves to reach the base unit 200 .

[0130] Applicator 700 operates with sensor unit 600 and base unit 200 attached, connecting sensor unit 600 and base unit 200, and inserting the sensor of sensor unit 600 into the user's skin. Most of the configuration of applicator 700 is as described above, with some modifications to column portion 710, plunger 720, carrier 730, and moving member 750. Compared to applicator 30 described above, applicator 700 further includes safety pin 740.

[0131] The safety pin 740 is inserted into the column portion hole 711 formed in the column portion 710, the plunger hole 721 formed in the plunger 720, and the carrier hole 731 formed in the carrier 730. When the plunger 720 is located at the first position, the column portion hole 711, the plunger hole 721, and the carrier hole 731 are aligned in a line. In this state, the safety pin 740 passes through the column portion hole 711 and the plunger hole 721 in that order and is inserted into the carrier hole 731. The safety pin 740 can prevent the plunger 720 and the carrier 730 from moving when in the first position. Therefore, the safety pin 740 can prevent the applicator 700 from malfunctioning due to the user's carelessness. The user can separate the safety pin 740 from the column portion 710 and then operate the applicator 700 to insert the sensor into the skin.

[0132] The specific configuration and number of the safety pin 740 may be varied in various ways. In another exemplary embodiment, the safety pin that passes through the column portion is installed so as to engage with the plunger without reaching the carrier. In this case, the safety pin restricts the movement of the plunger at the first position, thereby preventing the applicator from malfunctioning due to the user's carelessness.

[0133] The movable member 750 has a modified shape of the movable member body 751 and the position of the grip portion 753 compared to the movable member 510 described above. The grip portion 753 protrudes from one side of the movable member body 751 in a direction intersecting the direction of movement of the movable member body 751. The grip portion 753 is disposed outside the column portion 710 when the movable member 750 is fixed in the third position by the stopper 341. A portion of the wing portion 614 of the protective sheet 610 passes through the opening 712 of the column portion 710 and is coupled to the grip portion 753 located outside the column portion 710.

[0134] The shape and position of the grip portion coupled to the protective sheet, or the position of the coupling portion between the movable member and the protective sheet, may be variously changed. In another exemplary embodiment, the grip portion may be located on the side, edge, or bottom surface of the movable member body.

[0135] Meanwhile, FIG. 45 is a cross-sectional view showing a portion of an applicator according to still another embodiment of the present invention.

[0136] The applicator 800 shown in FIG. 45 has a partially modified structure of the applicator body 810.

[0137] Applicator body 810 includes support posts 820 for supporting protective sheet 610 separated by the adhesive layer of sensor unit 600. If protective sheet 610 separated by moving member 750 is positioned in the movement path of sensor unit 600, carrier 730, or plunger 720, protective sheet 610 may interfere with sensor unit 600, carrier 730, or plunger 720 during operation of applicator 800, hindering smooth operation of applicator 800. In applicator 800 according to this embodiment, support posts 820 support protective sheet 610 after the separation operation of protective sheet 610, thereby preventing the problem of protective sheet 610 interfering with components that move during operation of applicator 800, such as sensor unit 600, carrier 730, or plunger 720.

[0138] 45, the support 820 has a curved arch portion 821 that can contact the protective sheet 610 and is installed on the applicator body 810 so as to be deflected upward. The support 820 is elastically deformed by the moving member 750, and when it is released from the moving member 750, it returns to its original state so as to be deflected upward.

[0139] 46, when the movable member 750 is loaded at the third position, the support pillar 820 is pushed by the movable member 750 and elastically deformed so as not to protrude from the stage 333. Then, as shown in FIG. 47, when the movable member 750 is moved to the fourth position and the protective sheet 610 is separated, the support pillar 820 is released from the movable member 750 and protrudes from the stage 333, thereby supporting the protective sheet 610 without interfering with other components.

[0140] The shape and position of the support 820 may be varied in various ways.

[0141] Meanwhile, FIG. 48 is a cross-sectional view showing an applicator assembly according to still another embodiment of the present invention.

[0142] 48 includes a sensor unit 900 having a sensor that is inserted into the skin of a user to measure biological information, and an applicator 30 to which the sensor unit 900 is detachably attached for inserting the sensor into the skin of the user. The applicator 30 is as described above.

[0143] 49, sensor unit 900 includes sensor 110 inserted into the user's skin, sensor unit housing 120 to which sensor 110 is coupled, adhesive layer 155 provided on sensor unit housing 120, protection sheet 160 covering adhesive layer 155, and electronic component 910. Electronic component 910 may include a substrate electrically connected to sensor 110, a process chip mounted on the substrate and converting biological information measured by sensor 110 into an electrical signal, a communication chip for communicating with the outside, a battery, etc. Sensor unit 900, coupled with needle 450, moves from a first position to a second position and is attached to the user's skin.

[0144] The applicator 30 can remove the protective sheet 160 from the sensor unit 900 using the moving member 510 to move the sensor unit 900 from the first position to the second position.

[0145] In the second position, the sensor 110 of the sensor unit 900 is inserted into the user's skin and attached to the user's skin by the adhesive layer 155. After the sensor unit 900 is attached to the user's skin, the needle 450 is separated from the skin, and the sensor unit 900 is separated from the applicator 30, allowing the user's biological information to be measured.

[0146] In the applicator assembly 50 according to this embodiment, the sensor unit 900 has both signal processing and communication functions, so that the sensor unit 900 can be attached to the user's skin to measure biometric information without the need for a separate base unit, and the measured biometric information can be transmitted to an external terminal 5, etc.

[0147] Meanwhile, Figures 50 and 51 show other embodiments of the sensor unit and the base unit.

[0148] 50 and 51 includes a sensor 110 to be inserted into the user's skin, a sensor unit housing 120 to which the sensor 110 is coupled, a sensor adhesive part 149 and an adhesive pad 152 for fixing the sensor 110 to the sensor unit housing 120, an adhesive layer 155 provided on the sensor unit housing 120 to be attached to the base unit 260, and a protective sheet for covering the adhesive layer 155. The sensor unit 180 has a configuration in which a sensor unit electrical contact part for electrically connecting the sensor 110 to the base unit 260 is omitted.

[0149] The base unit 260 includes a base unit housing 210 to which the sensor unit 180 is coupled, a substrate 223 installed inside the base unit housing 210, a base unit electrical contact 265 electrically connected to the sensor 110 of the sensor unit 180, and a battery 228. An adhesive portion 230 is provided on the surface of the base unit housing 210. The base unit electrical contact 225 contacts the sensor 110 when the sensor unit 180 is coupled to the base unit 260. The base unit electrical contact 225 is electrically connected to the substrate 223, and a portion of the base unit electrical contact 225 protrudes from the contact surface 216 to contact the sensor 110. The base unit electrical contact 225 may include a plurality of terminal portions 266 that respectively contact a plurality of contacts (not shown) provided on the sensor body 111 of the sensor 110. The terminal portions 266 contact the contacts of the sensor body 111 to electrically connect the sensor 110 to the substrate 223. The terminal portion 266 is elastically deformed when it comes into contact with the sensor body 111 so as to be in stable contact with the sensor body 111 .

[0150] The sensor unit 180 is attached to the base unit 260 by the adhesive layer 155, thereby constituting the body-attachable unit 60 together with the base unit 260. When the sensor unit 180 is coupled to the base unit 260, the base unit electrical contacts 265 pass through the adhesive layer holes 156, the through-holes 124, and the sensor adhesive opening 150 to come into contact with the sensor body 111 of the sensor 110. Therefore, the sensor 110 is electrically connected to the base unit 260 through the base unit electrical contacts 265. At this time, the adhesive layer 155 seals between the sensor 110 and the base unit electrical contacts 265, preventing moisture or foreign matter from entering the electrical connection between the sensor unit 180 and the base unit 260.

[0151] The specific configuration, number, and location of the base unit electrical contacts provided on the base unit 260 for electrically connecting the sensor 110 and the base unit 260 may be variously changed.

[0152] Although the present invention has been described above with reference to preferred embodiments, the scope of the present invention is not limited to the embodiments described and illustrated above.

[0153] For example, the drawings show that the movable member for separating the protective sheet from the sensor unit supports the plunger at the third position, fixes the plunger at the first position, and moves to the fourth position to separate the protective sheet and detach from the plunger, but the applicator may be configured to include a separate member for fixing the plunger at the first position in addition to the movable member.

[0154] Also, although the drawings show the moving member being installed to move in a direction that is approximately perpendicular to and intersects with the moving direction of the sensor unit, the moving member may be installed to move in other directions.

[0155] Also, although the drawings show the sensor unit being detachably coupled to a carrier coupled to the needle and moving from a first position to a second position, the sensor unit may be detachably coupled to the plunger or a separate member provided on the plunger and move together with the plunger.

[0156] Furthermore, although the drawings show the moving member being moved by a moving member driver, the moving member may be configured to be moved by an actuating member operated by a user.

[0157] In addition, although the drawings show a stopper that restricts movement of the movable member when the elastic member that provides a moving force to the movable member is elastically deformed and is provided on the middle frame, the position of the stopper may be changed in various ways. In other exemplary embodiments, the stopper may be installed in various positions on the applicator body other than the middle frame. In still other exemplary embodiments, the stopper may be provided on the movable member to engage with the applicator body and be released by the actuating member.

[0158] In another exemplary embodiment, the base unit may simply support the sensor unit so that it does not separate from the user's skin. In this case, a separate electronic unit that processes biometric information measured by the sensor unit and transmits it to an external terminal may be detachably coupled to the base unit. The separate electronic unit is coupled to the base unit so as to be electrically connected to the sensor unit after the sensor unit is coupled to the base unit.

[0159] While the present invention has been shown and described in connection with preferred embodiments for the purpose of illustrating the principles of the invention, the invention is not limited to the exact construction and operation so shown and described. Rather, it will be readily apparent to those skilled in the art that numerous changes and modifications can be made to the invention without departing from the spirit and scope of the appended claims.

Claims

1. An applicator for inserting a sensor for measuring biological information into a user's skin, an applicator body that can contact the skin of a user; an insertion unit installed on the applicator body for moving a sensor unit including the sensor, a sensor unit housing to which the sensor is attached, an adhesive layer provided on the sensor unit housing, and a protective sheet covering the adhesive layer from a first position spaced apart from the user's skin to a second position where the sensor is inserted into the user's skin; a removing unit disposed on the applicator body to separate the protection sheet from the adhesive layer before the sensor unit reaches the second position; an actuation member disposed on the applicator body so as to be operated by a user to actuate the removing unit; The removing unit comprises: a moving member movably installed on the applicator body to pull the protection sheet in a direction to separate it from the adhesive layer, and to which a portion of the protection sheet is bonded; an elastic member that applies an elastic force to the moving member in a direction that exposes the protective sheet from the adhesive layer; a stopper that restricts movement of the moving member when the elastic member is elastically deformed; Including, The actuating member can release the stopper so that the moving member can move by the elastic member. An applicator characterized by:

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

3. 3. The applicator according to claim 2, further comprising: a support attached to the applicator body for supporting the protection sheet separated from the adhesive layer by the moving member.

4. the movable member is installed to be movable from a third position where the protective sheet is coupled to the protective sheet while covering the adhesive layer to a fourth position where the protective sheet is separated from the adhesive layer; 4. The applicator of claim 3, wherein the support pillar is pushed by the movable member and elastically deformed when the movable member is in the third position, and when the movable member is moved to the fourth position, the support pillar is released from the movable member and returns to its original state to support the protective sheet.

5. The insertion unit includes: a plunger that is movably installed together with the sensor unit 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 mounted on the plunger and coupled to the needle; a plunger driver that applies a moving force to the plunger in a direction to move the plunger from the first position to the second position; 2. The applicator of claim 1, wherein the plunger is constrained from moving by contacting the movable member at the first position, and disengages from the movable member and moves to the second position when the movable member moves in a direction to separate the protective sheet from the adhesive layer.

6. the moving member is installed to move in a direction intersecting a direction in which the sensor unit moves from the first position to the second position, 6. The applicator according to claim 5, wherein the plunger is released from the moving member after the separating operation of the protection sheet by the moving member is completed.

7. The applicator body comprises: a base frame including a frame base portion that contacts the user's skin and a column portion that protrudes from the frame base portion and accommodates the plunger; 6. The applicator according to claim 5, further comprising: a stage disposed above the frame base portion to support the movable member; and a middle frame having a middle frame opening formed in the middle of the stage so that the column portion can be inserted.

8. the removing unit includes an elastic member that applies an elastic force to the moving member in a direction that exposes the protective sheet from the adhesive layer, a stopper is provided on one of the middle frame and the moving member to restrict movement of the moving member when the elastic member is elastically deformed; 8. The applicator according to claim 7, wherein the actuating member can release the stopper so that the moving member is moved by the elastic member.

9. The moving member is A moving member body; a moving member opening formed in the middle of the moving member body to allow the plunger to pass therethrough; 6. The applicator according to claim 5, further comprising a grip portion provided on the moving member body to be coupled with the protection sheet.

10. 6. The applicator of claim 5, further comprising: a needle release driver that provides a moving force to the carrier so that the carrier moves in a direction that separates the needle from the user's skin after the needle together with the sensor is inserted into the user's skin.

11. The protective sheet is a protective portion covering the adhesive layer; 2. The applicator according to claim 1, further comprising a wing portion extending from an edge of the protective portion to be coupled to the moving member.

12. the protective sheet has a protective sheet groove; The applicator according to claim 1 , wherein the moving member includes a grip portion that is inserted into the protective sheet groove.

13. an applicator for inserting a sensor into a 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 be attached to a user's skin is detachably coupled; an insertion unit installed on the applicator body for moving the sensor unit, including the sensor, a sensor unit housing to which the sensor is attached, an adhesive layer provided on the sensor unit housing to be attached to the base unit housing, and a protective sheet covering the adhesive layer, from a first position spaced apart from the base unit to a second position coupled to the base unit, and inserting the sensor into the skin of a user; a removing unit disposed on the applicator body to separate the protection sheet from the adhesive layer before the sensor unit reaches the second position; an actuation member disposed on the applicator body so as to be operated by a user to actuate the removing unit; The removing unit comprises: a moving member movably installed on the applicator body to pull the protection sheet in a direction to separate it from the adhesive layer, and to which a portion of the protection sheet is bonded; an elastic member that applies an elastic force to the moving member in a direction that exposes the protective sheet from the adhesive layer; a stopper that restricts movement of the moving member when the elastic member is elastically deformed; Including, The actuating member can release the stopper so that the moving member can move by the elastic member. An applicator characterized by:

14. a sensor unit including a sensor, a sensor unit housing to which the sensor is attached, an adhesive layer provided on the sensor unit housing, and a protective sheet covering the adhesive layer; an applicator body that can contact the skin of a user; an insertion unit mounted on the applicator body for moving the sensor unit from a first position spaced apart from the user's skin to a second position where the sensor is inserted into the user's skin; a removing unit disposed on the applicator body to separate the protection sheet from the adhesive layer before the sensor unit reaches the second position; an actuation member disposed on the applicator body so as to be operated by a user to actuate the removing unit; The removing unit comprises: a moving member movably installed on the applicator body to pull the protection sheet in a direction to separate it from the adhesive layer, and to which a portion of the protection sheet is bonded; an elastic member that applies an elastic force to the moving member in a direction that exposes the protective sheet from the adhesive layer; a stopper that restricts movement of the moving member when the elastic member is elastically deformed; Including, The actuating member can release the stopper so that the moving member can move by the elastic member. An applicator assembly comprising:

15. a base unit detachably coupled to the applicator body, the base unit housing including an adhesive portion attached to the base unit housing so as to be attached to a user's skin; 15. The applicator assembly of claim 14, wherein the sensor unit housing is attached to the base unit housing by the adhesive layer at the second location.

Images