Liquid medicine injection device applying time-symmetric algorithm, driving time symmetry method and recording medium thereof

Abstract

The present invention relates to a liquid medicine injection device including a pump module with drive time symmetry, a drive time symmetry method, and a recording medium thereof. More specifically, the liquid medicine injection device according to the present invention includes: a pump module having a shaft that linearly reciprocates in one direction; a rotating member having a first section and a second section connected to the shaft and rotating reciprocally by the linear reciprocation of the shaft; at least one sensor that acquires contact time information in contact with the second section; and a control unit that determines the drive time of the pump module based on the contact time information and determines an additional drive time of the pump module based on the drive time.

Description

Technical Field

[0001] The present invention relates to a liquid medicine injection device including a pump module, a driving time symmetry method, and a recording medium thereof. More specifically, the present invention relates to a liquid medicine injection device applying a driving time symmetry algorithm, a driving time symmetry method, and a recording medium thereof. Background Art

[0002] Diabetes is a disease caused by metabolic abnormalities due to insufficient insulin, and insulin is one of the hormones secreted by the pancreas. As one of the positive methods, diabetic patients can adopt the method of injecting insulin into the body. An insulin injection device (hereinafter referred to as a liquid medicine injection device) can be used to inject insulin into the body to adapt to the blood glucose changes of the patient.

[0003] On the other hand, for an electroosmosis driver (hereinafter referred to as a pump module) provided in the liquid medicine injection device, the driving times of the Pull operation and the Push operation for making it reach the forward point and the backward point are different depending on the characteristics of the pump module. The characteristics of the pump module can be friction, length, temperature, load, electrolysis, etc.

[0004] When the driving times of the Pull operation and the Push operation are asymmetric, gas is generated inside the pump module, and there are problems such as performance degradation and shortened product life over time. Summary of the Invention

[0005] Problems to be Solved by the Invention

[0006] An object of the present invention is to provide a liquid medicine injection device having a pump module with symmetric driving time, a driving time symmetry method, and a recording medium thereof according to the above needs.

[0007] However, these problems are exemplary, and the scope of the present invention is not limited by them.

[0008] Means for Solving the Problems

[0009] A liquid medicine injection device according to an embodiment of the present invention includes: a pump module having a shaft that linearly reciprocates in one direction; a rotating member including a first section and a second section connected to the shaft and rotating and reciprocating by the linear reciprocation; at least one sensor that acquires contact time information when contacting the second section; and a control unit that determines the driving time of the pump module based on the contact time information and determines an additional driving time of the pump module based on the driving time.

[0010] In addition, the at least one sensor includes a first sensor and a second sensor, and the control unit determines a first driving time and a second driving time of the pump module based on first contact time information when the first sensor contacts the first section and second contact time information when the second sensor contacts the first section.

[0011] The control unit determines whether to apply an additional driving time based on the first driving time or the second driving time, and controls the pump module such that the shaft performs the linear reciprocating motion corresponding to the additional driving time.

[0012] In addition, the shaft performs a linear reciprocating motion along a first direction from a first space toward a second space and a second direction opposite to the first direction.

[0013] A driving method of a liquid medicine injection device according to an embodiment of the present invention includes: driving a pump of a pump module, the pump module having a shaft that performs a linear reciprocating motion along one direction; using a first section and a rotating member and a sensor of a second section connected to the shaft and performing a rotational reciprocating motion through the linear reciprocating motion to obtain contact time information when the sensor contacts the second section; and determining a driving time of the pump module based on the contact time information, and determining an additional driving time of the pump module based on the driving time.

[0014] A recording medium according to the present invention may be a computer-readable recording medium storing a program for executing the driving method of the liquid medicine injection device.

[0015] Except for the above content, other aspects, features, and advantages will become clear in the following specific content for implementing the present invention, the scope of the claims, and the drawings.

[0016] Effects of the Invention

[0017] As described above, according to the driving time symmetrization algorithm of the present invention, no gas is generated inside the electroosmotic driver through symmetric driving time, thereby having the effect of extending the lifespan.

[0018] Of course, the scope of the present invention is not limited by these effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view showing a liquid medicine injection device according to an embodiment of the present invention.

[0020] Figure 2 is showing Figure 1 the internal structure of the liquid medicine injection device.

[0021] Figure 3is a top view of a liquid medicine injection device showing Figure 2 of the liquid medicine injection device.

[0022] Figure 4 is a perspective view of a pump module according to an embodiment of the present invention, Figure 5 is along Figure 4 a cross-sectional view taken along line II-II' of

[0023] Figure 6a and Figure 6b is a schematic diagram showing reactions in a first electrode body and a second electrode body centered on a diaphragm according to an embodiment of the present invention.

[0024] Figure 7a and Figure 7b is a cross-sectional view for explaining the reciprocating motion of a shaft according to an embodiment of the present invention.

[0025] Figure 8a is a top view for explaining that a liquid medicine injection device injects liquid medicine through a pump module and a driving unit according to an embodiment of the present invention.

[0026] Figure 8b is a perspective view for explaining that a liquid medicine injection device injects liquid medicine through a pump module and a driving unit according to an embodiment of the present invention.

[0027] Figure 9 is a top view for explaining the operation of a driving unit according to an embodiment of the present invention.

[0028] Figure 10 is a simple flowchart for explaining a method of symmetrizing the driving time of a pump module of a liquid medicine injection device 1 according to an embodiment of the present invention.

[0029] Figure 11 is a flowchart for explaining a method of applying an additional driving time to a liquid medicine injection device 1 according to an embodiment of the present invention.

[0030] Figure 12 is a flowchart for explaining another method of applying an additional driving time to a liquid medicine injection device 1 according to an embodiment of the present invention.

[0031] Figures 13a to 13c is a diagram showing the driving time symmetry effect of a pump module to which a symmetrization algorithm is applied according to an embodiment of the present invention.

[0032] Preferred Embodiments

[0033] The present invention relates to a liquid medicine injection device including a pump module with symmetric driving time, a method for symmetric driving time, and a recording medium thereof. Specifically, the liquid medicine injection device of the present invention includes: a pump module having a shaft that linearly reciprocates in one direction; a rotating member including a first section and a second section connected to the shaft and rotating reciprocally by the linear reciprocation; at least one sensor that acquires contact time information when contacting the second section; and a control unit that determines the driving time of the pump module based on the contact time information and determines an additional driving time of the pump module based on the driving time. Detailed embodiments

[0034] Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. The various embodiments of the present invention can be variously modified, can have various embodiments, specific embodiments are shown in the drawings, and relevant detailed descriptions are provided. However, these are not intended to limit the various embodiments of the present invention to a specific implementation manner, but should be understood to include all modifications and / or equivalents or alternatives included within the spirit and technical scope of the various embodiments of the present invention. With reference to the accompanying drawings, similar reference numerals are used for similar structural elements.

[0035] Terms such as "including" or "having" used in the various embodiments of the present invention should be understood to specify the presence of the features, quantities, steps, operations, components, parts, or combinations thereof described in the specification, and do not preclude the presence or additional possibility of one or more other features, quantities, steps, operations, structural elements, parts, or combinations thereof in advance.

[0036] Expressions such as "or" used in the various embodiments of the present invention include any and all combinations of the words listed together. For example, "A or B" may include only A, may include only B, or may include both A and B.

[0037] Expressions such as "first", "second", "the first", or "the second" used in the various embodiments of the present invention may modify the various components of the various embodiments, but do not limit the corresponding structural elements. For example, these expressions do not limit the order and / or importance degree of the corresponding structural elements, etc., and may be used to distinguish one component from other components.

[0038] When it is mentioned that one component "is connected" or "contacts" another structural element, it should be understood that the one structural element can be directly connected to or contact the other structural element, but there may also be new other structural elements between the one structural element and the other structural element.

[0039] In one embodiment of the present invention, terms such as "module", "unit", "part", etc. are terms used to refer to structural elements that perform at least one function or operation, and these structural elements can be implemented in hardware or software, or in a combination of hardware and software. In addition, multiple terms such as "module", "unit", "part", etc. can be integrated into at least one module or chip and implemented with at least one processor, except in cases where each requires a separate specific hardware implementation.

[0040] Terms such as those defined in a common dictionary should be interpreted as having a meaning consistent with their meaning in the context of the related art, and should not be interpreted as having an ideal or overly formalized meaning unless explicitly defined in various embodiments of the present invention.

[0041] Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0042] Figure 1 is a perspective view of a liquid medicine injection device 1 showing one embodiment of the present invention.

[0043] Referring to Figure 1 , the liquid medicine injection device 1 can be attached to an object to which liquid medicine is to be injected, and inject the liquid medicine stored therein into a user in a set quantity. In an alternative embodiment, the liquid medicine injection device 1 can be mounted on a user's body. In addition, as another alternative embodiment, the liquid medicine injection device 1 can also be mounted on an animal and inject liquid medicine.

[0044] The liquid medicine injection device 1 can be used for various purposes according to the type of liquid medicine to be injected. For example, the liquid medicine can include insulin series liquid medicines for diabetic patients, and can also include various types of liquid medicines such as other liquid medicines for the pancreas and liquid medicines for the heart.

[0045] The liquid medicine injection device 1 can be connected to a remote device 2 connected by wire or wirelessly. A user can operate the remote device 2 to use the liquid medicine injection device 1, and can monitor the usage status of the liquid medicine injection device 1. For example, it is possible to monitor the amount of liquid medicine injected from the liquid medicine injection device 1, the number of times of liquid medicine injection, the amount of liquid medicine stored in a reservoir 200, the biological information of the user, etc., and the user can drive the liquid medicine injection device 1 based on these.

[0046] In one embodiment, the remote device 2 refers to a communication terminal capable of using an application in a wired / wireless communication environment. Here, the remote device 2 can be a user's portable terminal. More specifically, the remote device 2 can include: a computer (e.g., desktop computer, laptop, tablet, etc.), a media computing platform (e.g., cable TV, satellite set-top box, digital video recorder), a handheld computing device (e.g., PDA (Personal Digital Assistant), email client, etc.), any form of mobile phone; a form of a wearable device that can be attached to or mounted on a user's body; or any form of other types of computing or communication platform, but the present invention is not limited thereto.

[0047] The liquid medicine injection device 1 and the remote device 2 can communicate through a communication network. At this time, the communication network refers to a communication network that provides a connection path so that the remote device 2 can send and receive data after accessing a service server (not shown). The communication network includes, for example, wired networks such as local area networks (LANs), wide area networks (WANs), metropolitan area networks (MANs), integrated service digital networks (ISDNs), etc., or wireless local area networks, CDMA (Code Division Multiple Access), Bluetooth, and satellite communications, etc., but the scope of the present invention is not limited thereto.

[0048] In Figure 1 the remote device 2 is illustrated as a single device, but the present invention is not limited thereto, and it can include multiple devices capable of communicating with the liquid medicine injection device 1.

[0049] Figure 2 is a perspective view showing the internal structure of one embodiment of the liquid medicine injection device 1 Figure 1 and FIG. 3 is a top view showing the liquid medicine injection device 1 Figure 2 .

[0050] Referring to Figures 1 to 3 , one embodiment of the liquid medicine injection device 1 can include: a housing 5 covering the outside; an attachment portion 6 disposed adjacent to the user's skin. The liquid medicine injection device 1 includes a plurality of components disposed in the internal space between the outer shell 5 and the attachment portion 6. An additional engagement device can also be inserted and provided between the attachment portion 6 and the user's skin, and the liquid medicine injection device 1 is fixed to the skin through the engagement device.

[0051] The liquid medicine injection device 1 may include a base body 50, a pump module 100, a liquid reservoir 200, a needle assembly 300, a driving unit 400, a clutch unit 500, a trigger member 600, and a battery 700.

[0052] The base body 50 forms the basic framework of the outer shell 5 and is installed in the inner space of the outer shell 5. A plurality of base bodies 50 may be provided. In one embodiment, there may be provided: a first base body 50a that covers the upper side of the internal components; and a second base body 50b that covers the lower side of the internal components. The first base body 50a and the second base body 50b may assemble and fix the internal components of the liquid medicine injection device 1 in a preset position. In another embodiment, the base body 50 may be formed as an integral single frame.

[0053] The base body 50 may provide a space that enables the trigger member 600 to perform a rotational movement. The base body 50 supports the trigger member 600, and the trigger member 600 may rotate with reference to a rotating shaft 51 protruding from the base body 50.

[0054] The base body 50 may be provided with stoppers for restricting the rotational distance of the trigger member 600. A plurality of stoppers may be provided, and the moving distance of the trigger member 600 may be restricted so that the trigger member 600 rotates to a preset position. In one embodiment, the stopper may include a first stopper 52 and a second stopper 53.

[0055] The first stopper 52 protrudes upward from the base body 50 and is disposed adjacent to the needle assembly 300. The first stopper 52 may be configured to contact a first section 610 of the trigger member 600 and be able to restrict the rotational direction and rotational distance of the first section 610 so that the first section 610 does not rotate in the opposite direction after rotating in one direction.

[0056] More specifically, the surface of the first stopper 52 that contacts the trigger member 600 may be formed to protrude obliquely. When the first section 610 of the trigger member 600 rotates in one direction, the first section 610 moves along the upper surface of the first stopper 52. Since the upper surface of the first stopper 52 guides the movement of the trigger member 600, the needle assembly 300 may rotate smoothly through the rotation of the trigger member 600.

[0057] The first stopper 52 can limit the rotation direction of the trigger member 600. The side wall of the first stopper 52 can extend from the upper surface and is formed to be substantially perpendicular to the plane of the base body 50. The side wall of the first stopper 52 prevents the needle assembly 300 and the trigger member 600 from rotating in the opposite direction after the trigger member 600 rotates a preset rotation distance in one direction, thereby ensuring the stability of the liquid medicine injection device 1.

[0058] The second stopper 53 is disposed adjacent to the liquid reservoir 200, the drive unit 400, and the coupling unit 500. The second stopper 53 can be configured to protrude upward from the base body 50, thereby restricting the moving distance of the second section 620 of the trigger member 600. In one embodiment, the extension line in the longitudinal direction of the second stopper 53 can pass through the center of the rotation shaft 51.

[0059] Figures 4 to 7b It is a diagram for explaining the operation of the pump module of the present invention.

[0060] In particular, Figure 4 It is a perspective view of a pump module according to an embodiment of the present invention, Figure 5 is along Figure 4 The cross-sectional view taken along the line II-II'.

[0061] Referring to Figure 4 , the overall operation of the pump module 100 of the present invention can be executed by the control unit 800. Specifically, the control unit 800 can determine the driving time, additional driving time, etc. of the pump module 100 based on the information sensed by the pump module 100, and control the pump driving voltage time, etc. of the pump module 100 based on the determination result.

[0062] At this time, although Figure 4 shows the case where the control unit 800 is implemented as an additional configuration independent of the pump module 100, according to another embodiment of the present invention, the control unit 800 can be implemented as a configuration included in the pump module 100. In the case where the control unit 800 is implemented as an additional configuration independent of the pump module 100, it can be included in the liquid medicine injection device 1 or can be included in the remote device 2 and communicate with the liquid medicine injection device 1 through a communication network.

[0063] The communication network may include, for example, wired networks such as local area networks (LANs), wide area networks (WANs), metropolitan area networks (MANs), integrated service digital networks (ISDNs), etc., or wireless local area networks, CDMA, Bluetooth, and satellite communications, etc. However, the scope of the present invention is not limited thereto.

[0064] In addition, the control unit 800 may be implemented by a digital signal processor (DSP) for processing digital signals, a microprocessor, or a time controller (TCON). However, the control unit 800 is not limited thereto and may further include one or more of a central processing unit (CPU), a microcontroller unit (MCU), a microprocessing unit (MPU), a controller, an application processor (AP), or a communication processor (CP), an ARM processor, or be defined as the corresponding terms. In addition, the control unit 800 may be implemented by a system on chip (SoC) with built-in processing algorithms, a large scale integration (LSI), or in the form of a field programmable gate array (FPGA).

[0065] Referring to Figure 4 and Figure 5 , the inner shell 110 of the pump module 100 includes a shaft hole 112H provided on one side of the inner shell 110, and a shaft 120 having a predetermined length can extend to the outside of the inner shell 110 through the shaft hole 112H. In one embodiment, the shaft hole 112H may be formed in a protruding portion 112 extending convexly from the main body 111 of the inner shell 110, and the diameter of the protruding portion 112 may be smaller than the diameter of the main body 111.

[0066] The first portion 121 of the shaft 120 is disposed inside the inner shell 110. As described above, the second portion 122 extends to the outside of the inner shell 110 through the shaft hole 112H. The shaft 120 can be along Figure 4 andFigure 5 reciprocates in the vertical direction (z-direction). When the shaft 120 reciprocates, the first part 121 can linearly reciprocate within the internal space of the inner shell 110, for example, within the internal space corresponding to the protrusion 112. Since the diameter R1 of the first part 121 of the shaft 120 is larger than the diameter R3 of the shaft hole 112H, the first part 121 will not fall off from the inner shell 110.

[0067] The second part 122 of the shaft 120 has a diameter R2 that is smaller than the diameter R3 of the shaft hole 112H. At this time, to prevent the second part 122 from falling off from the shaft hole 112H, the second part 122 can be coupled to the power transmission part 130 disposed outside the inner shell 110.

[0068] A first seal 125 can be disposed on the side surface of the first part 121 of the shaft 120. The internal space of the inner shell 110, for example, the space formed by the inner surface of the inner shell 110 and the inner surface of the shaft 120 is a closed space, and there is a fluid in the internal space of the inner shell 110. The first seal 125 can prevent the fluid from leaking (escaping) from the gap between the inner shell 110 and the shaft 120. In Figure 5 For ease of explanation, the fluid is omitted.

[0069] According to an embodiment, as Figure 5 shown, the first seal 125 can cover the side surface of the first part 121 in the form of an O-ring, and the first seal 125 can prevent the fluid existing inside the inner shell 110 from leaking (escaping) to the outside of the inner shell 110 through the shaft hole 112H. By forming the first distance D1 from the first part 121 of the shaft 120 to the power transmission part 130 to be equal to or less than the inner length D2 of the protrusion 112, the leakage of the fluid can be more effectively prevented.

[0070] A diaphragm 140 can be disposed in the internal space of the inner shell 110, for example, it can be disposed in the internal space corresponding to the main body 111. The internal space includes a first space S1 and a second space S2 respectively located on both sides of the diaphragm 140 as the center. In Figure 5 For the diaphragm 140 as a reference, the space farther from the shaft 120 is the first space S1, and for the diaphragm 140 as a reference, the space adjacent to the shaft 120 is the second space S2.

[0071] The separator 140 may have a porous structure through which fluids and ions can move. For example, the separator 140 may be a glass frit type separator prepared by thermally calcining spherical silica. For example, the spherical silica used to form the separator may have a diameter of about 20 nm to about 500 nm, specifically, it may have a diameter of about 30 nm to about 300 nm, and more specifically, it may have a diameter of about 40 nm to about 200 nm. When the diameter of the spherical silica satisfies the above range, the pressure caused by the first fluid passing through the separator 140 can be generated, that is, sufficient pressure for moving the shaft 120 can be generated.

[0072] Although the case where the separator 140 includes spherical silica is described in the above embodiment, the separator 140 is not limited thereto. In another embodiment, as long as the separator 140 is a material that causes an electrokinetic phenomenon based on the zeta potential, such as porous silica or porous alumina, its type is not limited.

[0073] The separator 140 may have a thickness of about 20 μm to about 10 mm, specifically, it may have a thickness of about 300 μm to about 5 mm, and more specifically, it may have a thickness of about 1,000 μm to about 4 mm.

[0074] The first electrode body 150 and the second electrode body 160 are respectively disposed on both sides of the separator 140. The first electrode body 150 may include a first porous plate 151 disposed on the first side of the separator 140 and a first electrode strip 152. The second electrode body 160 may include a second porous plate 161 disposed on the second side of the separator 140 and a second electrode strip 162.

[0075] The first porous plate 151 and the second porous plate 161 may be configured to contact the main surfaces on both sides of the separator 140 respectively. The first porous plate 151 and the second porous plate 161 can effectively move fluids and ions through the porous structure. The first porous plate 151 and the second porous plate 161 may have a structure in which an electrochemically reactive substance is formed on a porous base layer. For example, by methods such as electroless plating, vacuum deposition, coating, sol-gel process, etc., and an electrochemically reactive substance can be formed on the porous base layer by electrodeposition or coating.

[0076] The porous base layer may be an insulator. For example, the porous base layer may include one or more selected from non-conductive ceramics, non-conductive polymer resins, non-conductive glasses, and combinations thereof.

[0077] For example, the non-conductive ceramic may include one or more selected from the group consisting of rock wool, gypsum, ceramics, cement, and combinations thereof. Specifically, it may include one or more selected from the group consisting of rock wool, gypsum, and combinations thereof, but is not limited thereto.

[0078] For example, the non-conductive polymer resin may include: synthetic fibers selected from the group consisting of polypropylene, polyethylene terephthalate, polyacrylonitrile, and combinations thereof; natural fibers selected from the group consisting of wool, cotton, and combinations thereof; sponges; porous materials obtained from organisms, such as the bones of organisms; and one or more selected from the group consisting of combinations thereof, but is not limited thereto.

[0079] The non-conductive glass may include one or more selected from the group consisting of glass wool, glass frit, porous glass, and combinations thereof, but is not limited thereto.

[0080] The porous base layer may have a pore size of about 0.1 μm to about 500 μm. Specifically, it may have a pore size of about 5 μm to about 300 μm. More specifically, it may have a pore size of about 10 μm to about 200 μm. When the pore size of the porous base layer satisfies the above range, the fluid and ions can be effectively moved, thereby improving the stability, life characteristics, and efficiency of the pump module 100.

[0081] The electrochemically reactive substance may include substances that can achieve a pair of reactions in which the oxidation electrode and the reduction electrode exchange cations such as hydrogen ions during the electrode reaction of the first electrode body 150 and the second electrode body 160, and simultaneously constitute a reversible electrochemical reaction. For example, the electrochemically reactive substance may include one or more selected from the group consisting of silver / silver oxide, silver / silver chloride, MnO(OH), polyaniline, polypyrrole, polythiophene, polythionine, quinone-based polymer, and combinations thereof.

[0082] The first electrode strip 152 and the second electrode strip 162 may be disposed at the edges of the first porous plate 151 and the second porous plate 161, and may be connected to the first terminal 153 and the second terminal 163 located outside the inner case 110. The first electrode strip 152 and the second electrode strip 162 may include conductive materials such as silver and copper.

[0083] The fluid present in the internal space of the inner shell 110 may include a first fluid and a second fluid having different phases from each other. The first fluid may include a liquid such as water, and the second fluid may include a gas such as air. The first fluid present in the internal space does not completely fill the internal space. That is, the volume of the internal space is larger than the volume of the first fluid present in the internal space. The second fluid is present in the portion of the internal space where there is no water.

[0084] On both sides of the structure of the diaphragm 140, the first electrode body 150, and the second electrode body 160, a second seal 170 is disposed. The second seal 170 may have an annular shape having an area corresponding to the edge of the above structure. For the above fluid, for example, the first fluid may move from the first space S1 to the second space S2 or in the opposite direction in the thickness direction of the diaphragm 140, thereby passing through the diaphragm 140. At this time, the second seal 170 may block the gap between the inner surface of the inner shell 110 and the above structure, thereby preventing the liquid from flowing into the gap.

[0085] The fluid may flow into the internal space via Figure 4 the injection port 180 shown. In one embodiment, after completely filling the first fluid into the internal space via the injection ports 180 on both sides, a part of the first fluid is discharged to the outside via any one of the injection ports 180, and then the injection port 180 is blocked. Thus, the first fluid and the second fluid can be present in the internal space of the inner shell 110.

[0086] Next, with reference to Figures 6a to 7b the movement of the fluid and the movement of the corresponding axis will be described.

[0087] Figure 6a and Figure 6b are schematic views showing reactions in the first electrode body and the second electrode body centered on the diaphragm.

[0088] Referring to Figure 6a and Figure 6b the first electrode body 150 and the second electrode body 160 are respectively electrically connected to the power supply unit 190 via the first terminal 153 and the second terminal 163. By alternately changing and supplying the polarity of the voltage provided by the power supply unit 190, the moving direction of a liquid such as water can be changed.

[0089] In one embodiment, the case where silver / silver oxide is used as the electrochemically reactive substance and the first fluid is a solution containing water will be described.

[0090] Figure 6aAs shown, when the first electrode body 150 is the anode and the second electrode body 160 is the cathode, the reaction Ag(s) + H2O → 2H+ + 2e- occurs in the first electrode body 150, and the reaction Ag2O(s) + 2H+ + 2e- → H2O occurs in the second electrode body 160.

[0091] The cations (Mn+, such as hydrogen ions) generated by the oxidation reaction in the first electrode body 150 move through the diaphragm 140 due to the voltage difference and move towards the second electrode body 160. At this time, water (H2O) can generate a predetermined pressure while moving together with the cations.

[0092] After that, as Figure 6b shown, if the polarity of the voltage provided by the power supply unit 190 is changed to the opposite polarity, the electrochemical reaction substances consumed when previously used as the anode will be reduced when used as the cathode, and will also be reduced in the case of the cathode, and the first electrode body 150 and the second electrode body 160 can continuously react according to the voltage supply of the power supply unit 190. Different from Figure 3 a, if the polarities of the voltages provided by the first electrode body 150 and the second electrode body 160 are changed, then as Figure 3 shown in b, the cations (Mn+, such as hydrogen ions) and water (H2O) will move from the second space S2 to the first space S1 again.

[0093] Figure 7a and Figure 7b are cross-sectional views for explaining the reciprocating motion of the shaft. Figure 7a shows the state before the shaft moves, Figure 7b shows the state after the shaft moves. In Figure 7a it can be understood as the state before applying voltage to the first electrode body 150 and the second electrode body 160 with reference to the previous Figure 6a explanation through the power supply unit 190.

[0094] Refer to Figure 7a , there is a first fluid including a liquid such as water in the internal space of the inner shell 110, and the volume of the first fluid existing in the internal space is smaller than the volume of the internal space. There is a second fluid including a gas such as air in the part of the internal space where there is no liquid.

[0095] For example, the first fluid exists in the first space S1 and the second space S1 respectively. The first fluid and the second fluid coexist in the first space S1, and the volume of the first fluid existing in the first space S1 can be smaller than the volume of the first space S1. The first fluid also exists in the second space S2, but different from the first space S1, there is no second fluid in the second space S2. Hereinafter, for the convenience of explanation, the space in the first space S1 where the first fluid exists as a liquid is referred to as the first sub-space SS1, and the space where the second fluid exists as a gas is referred to as the second sub-space SS2. The first sub-space SS1 and the second sub-space SS2 can form the first space S1. For example, in the first space S1, the remaining part except the first sub-space SS1 can be the second sub-space SS2.

[0096] In Figure 7a the state of, as Figure 6a described in, when the power supply unit 190 supplies voltage to the first electrode body 150 and the second electrode body 160, the reaction described with reference to Figure 6a will occur, and cations (for example, hydrogen ions) will move along the first direction from the first space S1 towards the second space S2 ( Figure 4 the -Z direction in ). At this time, the first fluid (for example, H2O) in the first space S1 moves through the diaphragm 140 together with the cations and moves along the first direction, thereby generating pressure. As shown in Figure 4 b, the shaft 120 linearly moves along the first direction through this pressure. As the first fluid (for example, H2O) in the first space S1 moves to the second space S2, the volume ratio of the first sub-space SS1 to the first space S1 decreases, and the proportion of the second sub-space SS2 in the first space S1 will increase.

[0097] Conversely, in Figure 7b the state of, as Figure 6b described in, if the power supply unit 190 changes the polarity of the voltage and supplies it to the first electrode body 150 and the second electrode body 160, then the cations (for example, hydrogen ions) and the first fluid (for example, water) move along the second direction from the second space S2 towards the first space S1 ( Figure 4 the Z direction in ), as shown in Figure 7a , the shaft 120 moves back to its original position.

[0098] When the polarity of the voltage applied by the power supply unit 190 to the first electrode body 150 and the second electrode body 160 is alternately changed, the shaft 120 can perform a reciprocating motion. For example, it moves along the first direction, then moves along the second direction opposite to the first direction, and then moves along the first direction again.

[0099] The reciprocating motion of the shaft 120 can be explained by the change in the volume ratio of the space filled with the second fluid, i.e., the second sub-space SS2, in the first space S1.

[0100] Figure 8a FIG. is a top view for explaining that the liquid medicine injection device 1 according to an embodiment of the present invention injects liquid medicine through the pump module 100 and the driving unit 400. Figure 8b FIG. is a perspective view for explaining that the liquid medicine injection device 1 according to an embodiment of the present invention injects liquid medicine through the pump module 100 and the driving unit 400. Figure 9 FIG. is a top view for explaining the operation of the driving unit 400 according to an embodiment of the present invention.

[0101] Referring to Figures 8a to 9 , the power transmission unit 130 can be connected to the rotating member 430. At this time, the rotating member 430 may include a first section 431, a second section 432, and third sections 433a and 433b. The first section 431 is a part that contacts at least one of the sensors 421 and 422, the second section 432 is a part connected to the power transmission unit 130, and the third sections 433a and 433b may be parts that contact the first connection section 401 and the second connection section 402, respectively.

[0102] At least one of the sensors 421 and 422 according to an embodiment of the present invention may be an anchor sensor, but is not limited thereto, and it may be implemented using all types of sensors that can sense through contact operations.

[0103] As Figures 4 to 7b explained in, the pump module 100 of the present invention can cause the shaft 120 to perform a linear reciprocating motion. Therefore, the power transmission unit 130 connected to the second part 122 of the shaft 120 can also perform a linear reciprocating motion in the same direction.

[0104] That is, the power transmission unit 130 can be connected to the second section 432 of the rotating member 430, and as the power transmission unit 130 performs a linear reciprocating motion, the second section 432 can also perform a linear reciprocating motion together.

[0105] As Figure 9As in the example, if, while the first section 431 is in contact with the second sensor 422, the second section 432 moves linearly in the rightward direction (Y direction) as the pump module 100 reciprocates, the rotating member 430 can perform a rotational movement. The third section 433b of the rotating member 430 can move in the upward direction (Z direction) and apply a force to the gear of the first connection section 401, thereby enabling the drive unit 400 to rotate. In addition, the first section 431 of the rotating member 430 can perform a rotational movement in the leftward direction (-Y direction) until it comes into contact with the first sensor 421, and when it contacts the first sensor 421, the rotational movement of the rotating member 430 stops.

[0106] Similarly, if, while the first section 431 is in contact with the first sensor 421, the second section 432 moves linearly in the leftward direction (-Y direction) as the pump module 100 reciprocates, the rotating member 430 can perform a rotational movement. The third section 433a of the rotating member 430 can move in the upward direction (Z direction) and apply a force to the gear of the second connection section 402, thereby enabling the drive unit 400 to rotate. In addition, the first section 431 of the rotating member 430 can perform a rotational movement in the rightward direction (Y direction) until it comes into contact with the second sensor 422, and when it contacts the second sensor 422, the rotational movement of the rotating member 430 stops.

[0107] As described above, the connecting shaft 410 extending from the drive unit 400 toward the reservoir 200 is connected to the reservoir 200 and rotates corresponding to the rotation of the drive unit 400.

[0108] That is, as Figure 8b shown, the linear reciprocating motion in the pump module 100 transmitted via the power transmission unit 130 can be converted into a rotational reciprocating motion of the drive unit 400, and the liquid medicine injection device 1 according to an embodiment of the present invention can inject the liquid medicine stored in the reservoir 200 through the rotational reciprocating motion.

[0109] The control unit 800 according to an embodiment of the present invention can acquire the contact time information sensed by the sensors 421 and 422.

[0110] Referring to Figure 9 the example, the control unit 800 can acquire the first contact time information when the first section 431 contacts and separates from the second sensor 422, and acquire the second contact time information when the first section 431 contacts the first sensor 421. Thereafter, the control unit 800 can determine the first driving time of the pump module 100 based on the first contact time information and the second contact time information. At this time, the first driving time can be the driving time for the push operation for driving the pump module 100.

[0111] Similarly, the control unit 800 can obtain first contact time information on the contact and separation between the first section 431 and the first sensor 421, and obtain second contact time information on the contact between the first section 431 and the second sensor 422. Thereafter, the control unit 800 can determine the second driving time of the pump module 100 based on the first contact time information and the second contact time information. At this time, the second driving time can be the driving time for the Pull operation for driving the pump module 100.

[0112] The first driving time (Push driving time) and the second driving time (Pull driving time) may be affected by various factors such as the diaphragm, the appliance, friction, length, temperature, load, electrolysis, etc. Accordingly, the driving time changes accordingly, resulting in an asymmetric driving time. If the driving time in the driving direction becomes asymmetric, gas will be generated inside the pump module 100. As a result, over time, the performance will decline and the product life will also be shortened.

[0113] The liquid medicine injection device 1 of the present invention can apply an algorithm for symmetrizing the driving time of the pump module 100. Regarding this, it will be described in detail through Figures 10 to 12 detailed description.

[0114] Figure 10 is a simple flowchart for explaining the driving time symmetrizing method of the liquid medicine injection device 1 according to an embodiment of the present invention.

[0115] The liquid medicine injection device 1 can drive the pump through the pump module 100 (S1010). The rotating member 430 can perform reciprocating motion corresponding to the linear reciprocating motion of the pump module 100. The liquid medicine injection device 1 can obtain contact time information through the sensors 421, 422 and the rotating member 430 (S1020). The contact time information can be information on the time when the first section 431 of the rotating member 430 contacts and / or separates from the first sensor 421 and the second sensor 422 respectively.

[0116] The liquid medicine injection device 1 can determine the driving time of the pump module 100 based on the above-mentioned contact time information (S1030). For example, the liquid medicine injection device 1 can determine the time from the first contact time information on the contact and separation between the first section 431 and the second sensor 422 to the second contact time information on the contact between the first section 431 and the first sensor 421 as the first driving time of the pump module 100. At this time, the first driving time can be the driving time for the Push operation for driving the pump module 100, but this is only an example and can be the time for driving the Pull operation according to the embodiment.

[0117] If the liquid medicine injection device 1 determines the first driving time and the second driving time, it can determine the additional driving time of the pump module 100 based on them (S1040). Specifically, the liquid medicine injection device 1 can determine the additional driving time for the driving time of each of the Push operation and the Pull operation. That is, the liquid medicine injection device 1 can respectively determine the first additional driving time for the first driving time and the second additional driving time for the second driving time.

[0118] According to an embodiment of the present invention, the liquid medicine injection device 1 can determine the additional driving time after the reciprocating motion of the Push operation and the Pull operation of the pump module 100 ends. Specifically, when one reciprocating motion ends, the liquid medicine injection device 1 can determine the current evaluation value indicating the degree of asymmetry of the current driving time of the pump module 100, and apply the additional driving time of the next driving time based on the current evaluation value. Regarding this, it will be described in Figure 11 and Figure 12 detail.

[0119] Figure 11 is a flowchart for explaining a method for the liquid medicine injection device 1 according to an embodiment of the present invention to apply the additional driving time.

[0120] Referring to Figure 11 , the liquid medicine injection device 1 can set the driving time symmetry algorithm to the initial values i = 0 and N = 1 (S1110). At this time, i can represent the number of pump driving times, and N can represent the number of pump driving reciprocating times.

[0121] The liquid medicine injection device 1 can drive the pump module 100 (S1120), and update it so that the number of pump driving times i increases by 1 (S1130). After that, the liquid medicine injection device 1 can determine the driving time of the pump at the corresponding number of times (S1140). Specifically, the liquid medicine injection device 1 can determine the driving time of the i-th pump drive based on the contact time information acquired by at least one sensor.

[0122] The liquid medicine injection device 1 can compare the driving time of the current drive with the total driving time of the previous drive, and determine whether the driving time of the current drive is less than or equal to the total driving time of the previous drive (S1150).

[0123] For example, the liquid medicine injection device 1 can compare the first driving time of the Nth first pump drive with the second total driving time of the (N - 1)th second pump drive. At this time, the first pump drive can represent the Push operation of the pump module 100. In this case, the second pump drive can represent the Pull operation of the pump module 100. However, this is only an example. The first pump drive can represent the Pull operation, and the second pump drive can represent the Push operation.

[0124] When the first driving time of the Nth first pump drive is less than or equal to the second total driving time of the (N - 1)th second pump drive (S1150 - Y), the liquid medicine injection device 1 can apply the additional driving time to the Nth first pump drive (S1160). On the contrary, when the first driving time of the Nth first pump drive is greater than the second total driving time of the (N - 1)th second pump drive (S1150 - N), the liquid medicine injection device 1 can determine that there is no additional driving time to be applied to the Nth first pump drive. Regarding this, it will be described in detail in Figure 12 this.

[0125] Thereafter, the liquid medicine injection device 1 can determine whether the pump drive count i is even (S1170). When it is determined that the pump drive count i is even (S1170 - Y), the liquid medicine injection device 1 can calculate the Nth evaluation value (S1180). After the liquid medicine injection device 1 calculates the Nth evaluation value, it can increase the N value by 1 (S1190), and then perform the (N + 1)th first pump drive (S1120).

[0126] At this time, the evaluation value can be a parameter representing the degree of asymmetry of the driving time of the pump module 100. On the other hand, according to an embodiment of the present invention, the evaluation value can be calculated by the following equations 1 and 2.

[0127] [Equation 1]

[0128]

[0129] [Equation 2]

[0130] C(N) = C(N - 1)+(S 2N-1 + τ 2N-1 )-(S 2N + τ 2N )

[0131] At this time, τ i can be the additional driving time of the ith pump drive. In addition, S iIt may be the driving time of the i-th pump drive determined based on the contact time information acquired by the sensor. In addition, C(N) may be an evaluation value corresponding to the number of reciprocations of the N-th pump drive.

[0132] On the other hand, when it is determined that the pump drive count i is not an even number (S1170-N), the liquid medicine injection device 1 may perform the N-th second pump drive (S1120).

[0133] Figure 12 It is a flowchart for explaining another method of applying an additional driving time to the liquid medicine injection device 1 according to an embodiment of the present invention.

[0134] The liquid medicine injection device 1 may set the driving time symmetry algorithm to the initial values i = 0 and N = 1 (S1210). At this time, i may represent the pump drive count, and N may represent the number of reciprocations of the pump drive.

[0135] The liquid medicine injection device 1 may drive the pump module 100 (S1220), and update it to increase the pump drive count i by 1 (S1230). After that, the liquid medicine injection device 1 may determine the driving time of the pump at the corresponding count (S1240). Specifically, the liquid medicine injection device 1 may determine the driving time of the i-th pump drive based on the contact time information acquired by at least one sensor.

[0136] The liquid medicine injection device 1 may compare the driving time of the current drive with the total driving time of the previous drive, and determine whether the driving time of the current drive is less than or equal to the total driving time of the previous drive (S1250).

[0137] When the first driving time of the N-th first pump drive is greater than the second total driving time of the (N-1)-th second pump drive (S1250-N), the liquid medicine injection device 1 may determine that there is no additional driving time applicable to the N-th first pump drive. At this time, when i is an even number (S1270-Y), the liquid medicine injection device 1 may calculate the N-th evaluation value (S1282). After that, the liquid medicine injection device 1 may increase the N value by 1 (S1283), and then perform the (N + 1)-th first pump drive (S1220). On the contrary, when i is not an even number (S1270-N), the liquid medicine injection device 1 may perform the N-th second pump drive (S1220).

[0138] When the first driving time of the N-th first pump drive is less than or equal to the second total driving time of the (N-1)-th second pump drive (S1250-Y), the liquid medicine injection device 1 may determine whether i is an even number (S1260).

[0139] When i is an even number (S1260 - Y), the liquid medicine injection device 1 can determine whether the (N - 1)th evaluation value is positive (S1280). When the (N - 1)th evaluation value is positive (S1280 - Y), the liquid medicine injection device 1 can determine the (N - 1)th evaluation value as the additional driving time for the ith pump driving (S1281). On the contrary, when the (N - 1)th evaluation value is negative (S1280 - N), it can be determined that there is no additional driving time applicable to the ith pump driving. At this time, the evaluation value can be a parameter representing the difference between the sum of the first pump driving times and the sum of the second pump driving times, that is, the asymmetry scale.

[0140] When the standard of the evaluation value according to an embodiment of the present invention is the first pump driving, the case where the evaluation value is negative means that asymmetry occurs in a state where the sum of the first pump driving times from the 1st to the Nth is shorter than the sum of the second pump driving times from the 1st to the Nth. At this time, similarly, the case where the evaluation value is positive means that asymmetry occurs in a state where the sum of the first pump driving times from the 1st to the Nth is longer than the sum of the second pump driving times from the 1st to the Nth.

[0141] This is only an example. According to another embodiment of the present invention, the standard of the evaluation value can be the second pump driving. At this time, the case where the evaluation value is positive means that asymmetry occurs in a state where the sum of the first pump driving times from the 1st to the Nth is shorter than the sum of the second pump driving times from the 1st to the Nth.

[0142] On the other hand, if the ith pump driving, that is, the Nth second pump driving ends, the liquid medicine injection device 1 can calculate the Nth evaluation value through the above-mentioned Mathematical Formula 1 and Mathematical Formula 2 (S1282). Specifically, the liquid medicine injection device 1 can calculate the Nth evaluation value based on the total driving time of the Nth first pump driving, the total driving time of the Nth second pump driving, and the (N - 1)th evaluation value. More specifically, the liquid medicine injection device 1 can calculate the value obtained by adding the (N - 1)th evaluation value to the value obtained by subtracting the second total driving time of the Nth pump driving from the total driving time of the Nth first pump driving as the Nth evaluation value. After that, the liquid medicine injection device 1 can increase the value of N (S1283), and perform the (N + 1)th first pump driving (S1220).

[0143] Even when i is an odd number (S1260 - N), the liquid medicine injection device 1 can also determine whether the (N - 1)th evaluation value is positive (S1290). When the (N - 1)th evaluation value is positive (S1290 - Y), the liquid medicine injection device 1 can determine that there is no additional driving time applicable to the ith pump driving, and the liquid medicine injection device 1 can perform the pump module driving to perform the Nth second pump driving (S1220).

[0144] In contrast, in the case where the evaluation value at the (N - 1)th time is negative (S1290 - N), the liquid medicine injection device 1 can determine the absolute value of the evaluation value at the (N - 1)th time as the additional driving time for the ith pump driving (S1291). Thereafter, the liquid medicine injection device 1 can perform the driving of the pump module to perform the Nth second pump driving (S1220).

[0145] On the other hand, referring to Mathematical Formula 1 and Mathematical Formula 2, the liquid medicine injection device 1 according to an embodiment of the present invention can determine the evaluation value to be 0 at the first (N = 1) pump driving. At this time, the liquid medicine injection device 1 can determine that there is no additional driving time applicable to the driving time of the first pump driving at the first time and the driving time of the second pump driving at the first time. That is, the first total driving time at the first time can be the first driving time at the first time, and the second total driving time at the first time can be the second driving time at the first time.

[0146] For example, the driving time symmetrization algorithm according to an embodiment of the present invention is applied as follows.

[0147] Driving time = {(2, 3), (3, 3), (4, 2), (2, 3), (2, 3)}

[0148] Total driving time = {(2, 3), (4, 3), (4, 2), (2, 3), (2, 3)}

[0149] Evaluation value = {-1, 0, 2, 1, 0}

[0150] Specifically, the liquid medicine injection device 1 can determine the evaluation value to be 0 at the first (N = 1) pump driving. Since the evaluation value is 0, there is no additional driving time for the driving time of the first pump driving at the first time and the driving time of the second pump driving at the first time. Therefore, after performing the first reciprocating pump driving, the evaluation value at the first time will be formed as -1 (evaluation value = 2 - 3 + 0).

[0151] That is, in the second reciprocating pump drive, the evaluation value starts from -1. The previous total drive time refers to the total drive time of the second pump drive in the first (N = 1) reciprocating motion. Since the additional drive time is not calculated during the comparison, the current total drive time is formed as the first drive time. Therefore, the current total drive time is 3, and the previous total drive time is 3. That is, the current total drive time is equal to the previous total drive time, so the applicable condition for the additional drive time is formed. If the evaluation value is negative, it means that the first drive time that forms the standard is insufficient, so an additional drive time equivalent to 1 second is applied. Therefore, the second first total drive time changes to 4 seconds. For the second second pump drive, the current total drive time is 3, the previous total drive time is 4, and the current total drive time is less than the previous total drive time. Although the applicable condition for the additional drive time is formed, the evaluation value is -1, so this means that the drive time in the second pump drive exceeds 1 second, and thus the additional drive time is not applicable. Therefore, the total drive time does not change and is formed as 3 seconds. If the second reciprocating pump drive ends, the evaluation value can be recalculated. At this time, the second evaluation value will be formed as 0 (evaluation value = 4 - 3 + (-1)).

[0152] In the third reciprocating pump drive, the evaluation value starts from 0. That is, since the evaluation value is 0, there is no additional drive time in the case of the third pump drive. After the third reciprocating pump drive, the evaluation value is formed as 2 (evaluation value = 4 - 2 + 0).

[0153] In the fourth reciprocating pump drive, the evaluation value starts from 2. The first drive time of the fourth first pump drive is 2, and the previous total drive time is 2. The current total drive time is the same as the previous total drive time, so the applicable condition for the additional drive time is formed, but the evaluation value is positive, so there is no additional drive time for the first drive time. On the contrary, in the case of the second pump drive, the current second drive time is 3, the previous total drive time is 2, and the current total drive time is greater than the previous total drive time, so there is no additional drive time. After the fourth reciprocating pump drive, the evaluation value is formed as 1 (evaluation value = 2 - 3 + 2).

[0154] In the fifth reciprocating pump drive, the evaluation value starts from 1. The first drive time of the first pump drive is 2, and the previous total drive time is 3. The current total drive time is less than the previous total drive time, but the evaluation value is negative, so there is no additional drive time for the first drive time. Thereafter, in the second pump drive, the second drive time is 3, the previous total drive time is 2, and the current total drive time is greater than the previous total drive time, so there is no additional drive time. After the fifth reciprocating pump drive ends, the evaluation value is formed as 0 (evaluation value = 2 - 3 + 1).

[0155] After the fifth reciprocating pump drive, the sum of each first drive time and second drive time forms 14 seconds. As shown in the above example, the evaluation value can serve as a parameter for representing the asymmetry scale, and the additional drive time is applied through the above algorithm, so as to balance the drive time.

[0156] As a result, according to the drive time symmetrization algorithm of the present invention, since the drive time is symmetric, there will be no gas generated inside the electroosmotic driver, and the effect of extending the lifespan can be achieved.

[0157] Figures 13a to 13c It is a diagram showing the symmetric effect of the drive time of the pump module to which the symmetrization algorithm according to an embodiment of the present invention is applied.

[0158] Figure 13a It is a graph showing the drive time of each drive of the Pull operation and Push operation before applying the drive time symmetrization algorithm of the present invention. Refer to Figure 13b Before applying the drive time symmetrization algorithm of the present invention, if the cumulative drive times of the Pull operation and Push operation are compared, it can be confirmed that as the number of pump drives increases, the drives become gradually asymmetric.

[0159] On the contrary, refer to Figure 13c In the case of applying the symmetrization algorithm of the present invention, it can be confirmed that even when the number of drives increases, the cumulative drive times of the Pull operation and Push operation still increase symmetrically. As described above, according to the drive time symmetrization algorithm of the present invention, it can be confirmed that the pump module drives with a symmetric drive time.

[0160] According to the methods of various embodiments of the present invention described above, it can be implemented in the form of an application program installed in an existing electronic device.

[0161] In addition, according to the methods of various embodiments of the present invention described above, it can be implemented only by software upgrade or hardware upgrade of an existing electronic device.

[0162] In addition, various embodiments of the present invention described above can be executed by an embedded server provided in the electronic device or an external server of the electronic device.

[0163] On the other hand, according to an embodiment of the present invention, the various embodiments described above can be implemented by software including instructions stored in a computer-readable recording medium that can be read by a computer or a similar device using software, hardware, or a combination thereof. In some cases, the embodiments described in this specification can be implemented by the processor itself. When implemented in software, embodiments such as the steps and functions described in this specification can be implemented by separate software modules. Each software module can perform one or more functions and operations described in this specification.

[0164] On the other hand, a computer or a similar device is a device capable of retrieving instructions stored in a recording medium and operating according to the retrieved instructions, and it can include the device according to the above-described embodiment. When the instructions are executed by a processor, the processor can directly or under the control of the processor use other components to execute the functions corresponding to the instructions. The instructions can include code generated or executed by a compiler or an interpreter.

[0165] For a device-readable recording medium, it can be provided in the form of a non-transitory computer-readable recording medium. At this time, "non-transitory" only means that the storage medium does not include a signal and is tangible, and does not distinguish whether the data is stored in the storage medium semi-permanently or temporarily. At this time, a non-transitory computer-readable medium refers to a medium that stores data semi-permanently and can be read by a device, and is not a medium that stores data for a short time such as a register, a cache, or a memory. As a specific example of a non-transitory computer-readable medium, it can include a CD, a DVD, a hard disk, a Blu-ray disc, a USB, a memory card, a ROM, etc.

[0166] As described above, the present invention has been described with reference to the embodiments shown in the accompanying drawings, but this is only exemplary. It should be understood that as long as those of ordinary skill in the art to which the present invention pertains can obtain various modifications and equivalent other embodiments based on these embodiments. Therefore, the true technical protection scope of the present invention should be determined by the technical idea of the scope of the claims in this specification.

Claims

1. A liquid medicine injection device, characterized in that, Comprising: A pump module having a shaft that reciprocates linearly in one direction; A rotating member having a first section connected to the shaft, a second section that rotates reciprocally through the linear reciprocating motion, and two third sections that respectively contact both a first connecting section and a second connecting section; At least one sensor that acquires contact time information of contacting the second section; A drive unit including the rotating member and the at least one sensor; And A control unit that determines the drive time of the pump module based on the contact time information, and determines an additional drive time of the pump module based on the drive time, wherein the third section moves in a predetermined direction to apply a force to one of the gears of the first connecting section or the second connecting section, thereby rotating the drive unit including the rotating member and the at least one sensor, wherein the drive time is the time for the push operation and the pull operation for driving the pump module.

2. The liquid medicine injection device according to claim 1, characterized in that At least one of the sensors includes a first sensor and a second sensor, The control unit determines a first drive time and a second drive time of the pump module based on first contact time information of the first sensor contacting the second section and second contact time information of the second sensor contacting the second section.

3. The liquid medicine injection device according to claim 2, characterized in that The control unit determines whether to apply an additional drive time based on the first drive time or the second drive time, and controls the pump module to perform the linear reciprocating motion corresponding to the additional drive time.

4. The liquid medicine injection device according to claim 1, characterized in that The shaft reciprocates in a first direction from a first space toward a second space and a second direction opposite to the first direction.

5. A driving method for a liquid medicine injection device, characterized in that, Comprising: The step of driving a pump of a pump module having a shaft that reciprocates linearly in one direction; The step of acquiring contact time information of the at least one sensor contacting the second section by using a rotating member having a first section connected to the shaft, a second section that rotates reciprocally through the linear reciprocating motion, and two third sections that respectively contact both a first connecting section and a second connecting section, and at least one sensor; And Moving the third section in a predetermined direction to apply a force to one of the gears of the first connecting section or the second connecting section, thereby rotating a drive unit including the rotating member and the at least one sensor, and The step of determining the drive time of the pump module based on the contact time information, and determining an additional drive time of the pump module based on the drive time, wherein the drive time is the time for the push operation and the pull operation for driving the pump module.

6. A computer-readable recording medium, wherein The recording medium stores a program for executing the drive method of the liquid medicine injection device of claim 5.

Images