Injection device

Abstract

To provide an injection device that improves injection procedures and ensures injection safety. [Solution] The injection device includes an injection body and an adapter. An injection end and a non-injection end are defined on both sides of the injection body. The injection body includes an injection member, a drug container, a movable member, and a drive mechanism. The injection member is located at the injection end and is in fluid communication with the drug container. The movable member is located within the drug container. The drive mechanism is located at the non-injection end and engages with the movable member. The adapter is detachably assembled to the injection end. When the drive mechanism rotates in a first direction, the movable member moves linearly toward the non-injection end along the longitudinal axis of the drug container. When the drive mechanism rotates in a second direction, the movable member moves linearly toward the injection end along the longitudinal axis of the drug container.

Description

Technical Field

[0002]

[0001] The present invention relates to an injection device, and more specifically, to an injection device capable of improving injection operations and ensuring injection safety.

Background Art

[0002] Current syringes (e.g., auto-injectors or pen-type syringes) are used for self-administration of a small amount of drug for single-dose or multiple-dose administrations. Most existing syringes are purely mechanical and are driven by mechanical pressing on the plunger rod of a cartridge or syringe. Further, in order to transfer the drug solution from the vial to the syringe, the user has to hold the vial against the syringe and manually pull the plunger rod of the syringe. This manual operation is not easy for the general user and there is a possibility that the safety of injection may be impaired due to misoperation.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Patent Document 6

Patent Document 7

Patent Document 8

Summary of the Invention

[0004] To solve the above problems, the present invention provides an injection device that can improve injection procedures and ensure the safety of injections.

[0005] According to one embodiment of the present invention, the injection device includes an injection body and an adapter. An injection end and a non-injection end are defined on both sides of the injection body. The injection body includes an injection member, a drug storage member, a movable member, and a drive mechanism. The injection member is located at the injection end and is in fluid communication with the drug storage member. The movable member is movably positioned within the drug storage member. The drive mechanism is located at the non-injection end and engages with the movable member. The adapter is detachably assembled to the injection end. The injection member protrudes into the adapter. When the drive mechanism rotates in a first direction, the movable member moves linearly toward the non-injection end along the longitudinal axis of the drug storage member. When the drive mechanism rotates in a second direction, the movable member moves linearly toward the injection end along the longitudinal axis of the drug storage member. The first direction is opposite to the second direction.

[0006] In one embodiment, when a drug container is loaded into the adapter, the injection member penetrates into the drug container. The drive mechanism engages with the movable member and drives it, and as the movable member moves linearly along the longitudinal axis of the drug containment member toward the non-injection end, the drug solution is transferred from the drug container to the drug containment member.

[0007] In one embodiment, the adapter includes a sleeve portion for holding a drug container.

[0008] In one embodiment, the sleeve portion is transparent or includes a window, allowing the user to inspect the drug container loaded into the adapter and the drug solution inside the drug container.

[0009] In one embodiment, the injection body further includes a shell and a cover. A drug-containing member, a movable member, and a drive mechanism are arranged within the shell. The injection member protrudes from the shell. The cover is movably positioned on the shell relative to the injection member.

[0010] In one embodiment, when the adapter is assembled to the injection end, the adapter pushes the cover toward the non-injection end, thereby exposing the injection member from the cover and protruding into the adapter.

[0011] In one embodiment, when the adapter is removed from the injection end, the cover automatically returns to a position that covers the injection member.

[0012] In one embodiment, when the injection body is positioned on the object by the injection end, the object pushes the cover and moves toward the non-injection end, thereby exposing the injection member from the cover and penetrating the object.

[0013] In one embodiment, the cover includes an extension located within the shell. The injection body further includes an injection sensor positioned relative to the extension. When the cover moves toward the non-injection end and the injection sensor detects the extension, the drive mechanism, in response to the injection sensor, drives a movable member to move linearly toward the injection member, thereby causing the injection member to inject the drug solution from the drug container into the target object.

[0014] In one embodiment, when the injection body moves away from the object, the cover automatically returns to a state that covers the injection member.

[0015] In one embodiment, when the cover automatically returns to a position that covers the injection member, the cover self-locks.

[0016] In one embodiment, the shell includes a first subshell and a second subshell. An injection member, a drug-containing member, and a movable member are located in the first subshell. A drive mechanism is located in the second subshell. The second subshell is detachably engaged with the first subshell, and the drive mechanism is detachably engaged with the movable member.

[0017] In one embodiment, the shell includes a first sub-shell and a second sub-shell. The drive mechanism includes a drive member and a transmission structure engaged with the drive member. The injection member, the drug storage member, the movable member, and the transmission structure are disposed in the first sub-shell. The drive member is disposed in the second sub-shell. The second sub-shell is detachably engaged with the first sub-shell, and the drive member is detachably engaged with the transmission structure.

[0018] In one embodiment, the injection body further includes a communication module that communicates with an electronic device, and injection data of the injection device is transmitted to the electronic device via the communication module.

[0019] In one embodiment, the injection body further includes an orientation sensor that senses the orientation of the injection device. When the orientation sensor senses that the injection end is upward, the drive mechanism responds to the orientation sensor and linearly moves the movable member away from the injection member.

[0020] In one embodiment, the injection body further includes an orientation sensor that senses the orientation of the injection device. When the orientation sensor senses that the injection end is upward, the drive mechanism responds to the orientation sensor and linearly moves the movable member toward the injection member, injects a specified amount of air into the drug container loaded into the adapter from the drug storage member, and then linearly moves the movable member away from the injection member to transfer the drug solution from the drug container to the drug storage member.

[0021] In one embodiment, the injection body further includes an orientation sensor that senses the orientation of the injection device and a switch that actuates the drive mechanism. When the switch is actuated and the orientation sensor senses that the injection end is downward, the drive mechanism drives the movable member to linearly move toward the injection member in response to the detection by the switch and the orientation sensor.

[0022] In one embodiment, the drug storage member includes a partition wall, the injection member includes two needle ends disposed on the opposing side, and one of the two needle ends penetrates the partition wall to connect the injection member to the drug storage member.

[0023] In one embodiment, the adapter includes a vent hole and an air needle. The air needle is connected to the vent hole. When the drug container is loaded into the adapter, the air needle penetrates the drug container.

[0024] In one embodiment, the movable member includes a first engagement portion, the drive mechanism includes a second engagement portion, and the first engagement portion engages with the second engagement portion, whereby the drive mechanism can drive the movable member to linearly move toward or away from the injection end.

[0025] As described above, the injection device of the present invention realizes automatic injection of a drug by driving a movable member using a drive mechanism to move along the longitudinal axis of the drug storage member. Further, the injection device of the present invention is equipped with an adapter for loading a drug container, and by operating the drive mechanism, the drug solution can be automatically transferred from the drug container to the drug storage member. Thus, the user does not need to hold the drug container against the injection body or manually pull or push the movable member to move it. Therefore, the injection device of the present invention can easily and automatically transfer the drug from the drug container to the injection device, and automatic injection of the drug is possible with a minimum of manual operation. Thereby, the injection operation is improved, and the safety of injection is ensured by minimizing human errors. Further, the injection device of the present invention provides an automated operation that replaces the manual operation of transferring the drug from the drug container to the injection device, enabling self-administration by a layperson.

[0026] These and other objects of the present invention will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments shown in the various figures and drawings.

Brief Description of the Drawings

[0027] [Figure 1] It is a schematic diagram showing an injection device according to an embodiment of the present invention. [Figure 2] It is a schematic diagram showing a state where a drug container is loaded into an adapter. [Figure 3]This is a schematic diagram showing the process of transferring the drug solution 5 from the drug container to the drug containment component of the injection body. [Figure 4] This is a schematic diagram showing that the cover automatically returns to a state where it covers the injection component. [Figure 5] This is a schematic diagram showing the state in which the injection body is positioned on the target object by the injection tip. [Figure 6] This is a schematic diagram showing the state in which a drug solution is injected into a target object. [Figure 7] This is a schematic diagram showing that the cover automatically returns to a state where it covers the injection component. [Figure 8] This is a schematic diagram showing an injection device according to one embodiment of the present invention. [Figure 9] This is a schematic diagram showing an injection device according to one embodiment of the present invention. [Figure 10] This is a schematic diagram showing an injection device according to one embodiment of the invention. [Figure 11] This is a schematic diagram showing an injection device according to one embodiment of the present invention. [Figure 12] This is a schematic diagram showing how a drug solution is injected into a target object. [Figure 13] This is a schematic diagram showing an adapter according to one embodiment of the present invention. [Figure 14] This is a schematic diagram showing an injection device according to one embodiment of the present invention. [Figure 15] This is a schematic diagram showing an injection device according to one embodiment of the present invention. [Figure 16] This is a schematic diagram showing an injection device according to one embodiment of the present invention. [Modes for carrying out the invention]

[0028] Refer to Figures 1 to 7. Figure 1 is a schematic diagram showing an injection device 1 according to one embodiment of the present invention; Figure 2 is a schematic diagram showing the state in which the drug container 3 is loaded into the adapter 12; Figure 3 is a schematic diagram showing the state in which the drug solution 5 is transferred from the drug container 3 to the drug storage member 102 of the injection body 10; Figure 4 is a schematic diagram showing that the cover 110 automatically returns to the state in which it covers the injection member 100; Figure 5 is a schematic diagram showing the state in which the injection body 10 is placed on the target object 7 by the injection end E1; Figure 6 is a schematic diagram showing the state in which the drug solution 5 is injected into the target object 7; and Figure 7 is a schematic diagram showing that the cover 110 automatically returns to the state in which it covers the injection member 100.

[0029] As shown in Figure 1, the injection device 1 includes an injection body 10 and an adapter 12, with an injection end E1 and a non-injection end E2 defined on both sides of the injection body 10, and the adapter 12 is detachably assembled to the injection end E1 of the injection body 10. The injection body 10 includes an injection member 100, a drug container member 102, a movable member 104, and a drive mechanism 106. The injection member 100 is located at the injection end E1 and is in fluid communication with the drug container member 102. When the adapter 12 is assembled to the injection end E1 of the injection body 10, the injection member 100 protrudes into the adapter 12. The movable member 104 is movably positioned within the drug container member 102. The drive mechanism 106 is located at the non-injection end E2 and is engaged with the movable member 104.

[0030] In this embodiment, the injection member 100 may be an injection needle or the like, and the drug container member 102 may be a syringe or a cartridge or the like. The movable member 104 may essentially consist of a plunger and a plunger rod, but the present invention is not limited thereto. The drive mechanism 106 may include a drive member 1060 and a transmission structure 1062 that engages with the drive member 1060. The transmission structure 1062 may engage with the movable member 104, thereby allowing the drive member 1060 to drive the movable member 104 linearly via the transmission structure 1062. For example, the drive member 1060 may be a motor, and the transmission structure 1062 may essentially consist of a screw track and a screw rod disposed within the screw track. The screw rod may be connected to a motor, and the screw track may engage with a movable member. Thus, when the motor rotates the screw rod, the screw track moves along the screw rod, driving the movable member 104 linearly. In another embodiment, the screw track may also be connected to a motor, and the screw rod may also engage with a movable member. The transmission structure 1062 is not limited to the embodiments described above. The transmission structure 1062 may be any other transmission mechanism as long as it can drive the movable member 104 to move linearly.

[0031] In this embodiment, the movable member 104 may include a first engaging portion 1040, and the drive mechanism 106 may include a second engaging portion 1064. The first engaging portion 1040 engages with the second engaging portion 1064, thereby allowing the drive mechanism 106 to drive the movable member 104 to move linearly toward or away from the injection end E1 of the injection body 10.

[0032] As shown in Figures 2 and 3, when the drive mechanism 106 rotates in a first direction D1 (for example, when the output shaft of the drive member 1060 rotates counterclockwise), the movable member 104 can move linearly toward the non-injection end E2 along the longitudinal axis LA of the drug containment member 102. As shown in Figures 5 and 6, when the drive mechanism 106 rotates in a second direction D2 (for example, when the output shaft of the drive member 1060 rotates clockwise), the movable member 104 can move linearly toward the injection end E1 along the longitudinal axis LA of the drug containment member 102. The first direction D1 is opposite to the second direction D2. That is, the first direction D1 may be counterclockwise and the second direction D2 may be clockwise, or the first direction D1 may be clockwise and the second direction D2 may be counterclockwise.

[0033] As shown in Figure 1, the injection body 10 may further include a shell 108 and a cover 110. In this embodiment, the drug containment member 102, the movable member 104, and the drive mechanism 106 are located within the shell 108, and the injection member 100 protrudes from the shell 108. The cover 110 is movably positioned on the shell 108 relative to the injection member 100. When the adapter 12 is assembled to the injection end E1 of the injection body 10, the adapter 12 pushes the cover 110 toward the non-injection end E2 of the injection body 10, thereby exposing the injection member 100 from the cover 110 and protruding into the adapter 12. At this time, the cover 110 is in a first retracted state. As shown in Figure 4, when the adapter 12 is removed from the injection end E1 of the injection body 10, the cover 110 is configured to automatically return to a state that covers the injection member 100, thereby preventing injury to the user from the injection member 100. At this time, the cover 110 is in a first extended state. In this embodiment, an elastic member (e.g., a spring, not shown) may be positioned relative to the cover 110 so that the elastic member is compressed by the cover 110 and provides an elastic force to return the cover 110 to its original position.

[0034] When a user administers an injection using the injection device 1, the user can load a drug container 3 (e.g., a vial) into the adapter 12, as shown in Figure 2. In this embodiment, the adapter 12 may include a sleeve portion 120 for holding the drug container 3. Furthermore, the sleeve portion 120 may be transparent, allowing the user to inspect the drug container 3 loaded into the adapter 12 and the drug solution 5 inside the drug container 3.

[0035] Once the drug container 3 is loaded into the adapter 12, the injection member 100 is inserted into the drug container 3, as shown in Figure 2. The user can then activate the drive mechanism 106 to drive and move the movable member 104. In this embodiment, the injection body 10 may further include a switch 112 (e.g., a button) for activating the drive mechanism 106, and the switch 112 may be located on the side of the shell 108. In this embodiment, the switch 112 may be coupled to the processing unit 114 via a circuit layout (e.g., a circuit board, not shown). In actual application, the processing unit 114 may be a processor or controller including data processing functions. When the switch 112 is triggered, the processing unit 114 activates the drive mechanism 106.

[0036] As shown in Figure 3, the drive mechanism 106 engages with the movable member 104 and drives it, and as the movable member 104 moves linearly along the longitudinal axis LA of the drug storage member 102 toward the non-injection end E2 of the injection body 10, the drug solution 5 is transferred from the drug container 3 to the drug storage member 102 via the injection member 100.

[0037] Next, the user can remove the adapter 12 to which the drug container 3 is attached from the injection body 10. As shown in Figure 4, when the adapter 12 is removed from the injection end E1 of the injection body 10, the cover 110 automatically returns to a state that covers the injection member 100, thereby preventing the user from being injured by the injection member 100. Next, the user can place the injection body 10 on the object 7 (e.g., the human body) and perform the injection. As shown in Figure 5, when the injection body 10 is placed on the object 7 by the injection end E1, the object 7 pushes the cover 110 and moves it toward the non-injection end E2, thereby exposing the injection member 100 from the cover 110 and penetrating the object 7. At this time, the cover 110 is in a second retracted state. Next, as shown in Figure 6, the user can activate the drive mechanism 106 to drive the movable member 104 to move linearly toward the injection member 100, thereby allowing the injection member 100 to inject the drug solution 5 from the drug container 102 into the object 7.

[0038] When the drug solution 5 is delivered from the drug container 102, it means that the injection process is complete. At this point, the user can remove the injection body 10 from the object 7. As shown in Figure 7, when the injection body 10 moves away from the object 7, the cover 110 automatically returns to a state that covers the injection member 100, thereby preventing the user from being injured by the injection member 100. At this time, the cover 110 is in a second extended state. Optionally, when the cover 110 automatically returns to a state that covers the injection member 100, the cover 110 may also be self-locked by a self-locking mechanism. The self-locking mechanism can be realized by the principle of an automatic ballpoint pen or the like, and is well known to those skilled in the art, so it is not illustrated in detail herein. In one embodiment, when the cover 110 is self-locked, it is not possible to push the cover 110 back into the shell 108, so that the injection member 100 is hidden inside the cover 110 after the injection process is complete. Therefore, when the user removes the injection body 10 from the object 7, the user will not be injured by the injection member 100.

[0039] Referring to Figure 8, Figure 8 is a schematic diagram showing an injection device 2 according to one embodiment of the present invention.

[0040] The main difference between injection device 2 and the aforementioned injection device 1 is that, as shown in Figure 8, the sleeve portion 120 of the adapter 12 of injection device 2 may include a window 122. This window 122 allows the user to inspect the drug container 3 loaded into the adapter 12 and the drug solution 5 inside the drug container 3.

[0041] Referring to Figure 9, Figure 9 is a schematic diagram showing an injection device 4 according to one embodiment of the present invention.

[0042] The main difference between the injection device 4 and the aforementioned injection device 1 is that, as shown in Figure 9, the injection body 10 of the injection device 4 further includes an injection sensor 40. In this embodiment, the cover 110 includes an extension 1100 located within the shell 108. The injection sensor 40 is also located within the shell 108 and is positioned relative to the extension 1100. Furthermore, the injection sensor 40 may be connected to the processing device 114 via a circuit layout (e.g., a circuit board, not shown). The injection sensor 40 is configured to sense the extension 1100 and determine whether the injection process has been initiated. As shown in Figure 9, when the injection body 10 is placed on the object 7 by the injection end E1, the object 7 pushes the cover 110 toward the non-injection end E2. When the cover 110 moves toward the non-injection end E2 and the injection sensor 40 detects the extension 1100, the drive mechanism 106 is activated by the processing device 114 to drive the movable member 104 in response to the injection sensor 40, causing it to move linearly toward the injection member 100, thereby causing the injection member 100 to inject the drug solution 5 from the drug container member 102 into the object 7. In this embodiment, the injection sensor 40 may be an optical sensor, a magnetic sensor (e.g., a Hall sensor), or another object sensor or distance sensor.

[0043] According to the embodiments described above, the initiation of the injection process can be triggered mechanically, electrically, optically, or by a combination of the mechanisms described above.

[0044] Referring to Figure 10, Figure 10 is a schematic diagram showing an injection device 6 according to one embodiment of the present invention.

[0045] The main difference between the injection device 6 and the aforementioned injection device 1 is that, as shown in Figure 10, the injection body 10 of the injection device 6 further includes a communication module 60. The communication module 60 may be coupled to the processing unit 114 via a circuit layout (e.g., a circuit board, not shown). The communication module 60 is configured to communicate with electronic devices (e.g., a server, computer, portable electronic device, etc.), and injection data from the injection device 6 (e.g., injection volume, injection time, etc.) may be transmitted to the electronic devices via the communication module 60, thereby allowing administrators, patients' families, and / or related parties to monitor the injection process through the injection data.

[0046] Referring to Figures 11 and 12, Figure 11 is a schematic diagram showing an injection device 8 according to one embodiment of the present invention, and Figure 12 is a schematic diagram showing a drug solution 5 to be injected into the target object 7.

[0047] The main difference between the injection device 8 and the aforementioned injection device 1 is that, as shown in Figure 11, the injection body 10 of the injection device 8 further includes an orientation sensor 80 for sensing the orientation of the injection device 8. The orientation sensor 80 can be coupled to the processing unit 114 via a circuit layout (e.g., a circuit board, not shown). In this embodiment, when the orientation sensor 80 senses that the injection end E1 of the injection body 10 is facing upward (as shown in Figure 11), it means that the injection body 10 is in drug transfer mode. At this time, the drive mechanism 106 is actuated by the processing unit 114 and, in response to the detection by the orientation sensor 80, drives the movable member 104 to move linearly away from the injection member 100, thereby transferring the drug 5 from the drug container 3 through the injection member 100 to the drug storage member 102. Thus, the injection device 8 can provide an automated operation as an alternative to the manual operation of transferring the drug from the drug container 3 to the injection device 8, thereby enabling self-administration by laypeople. In this embodiment, the orientation sensor 80 allows a predetermined angular range for determining the degree of "up" and "down," and this predetermined angular range is adjustable by software.

[0048] Furthermore, when switch 112 is activated and orientation sensor 80 detects that the injection end E1 of the injection body 10 is facing downwards (as shown in Figure 12), it means that the injection body 10 is in injection mode. At this time, the drive mechanism 106 is activated by the processing device 114 and, in response to switch 112 and orientation sensor 80, drives the movable member 104 to move linearly toward the injection member 100, thereby allowing the injection member 100 to inject the drug solution 5 from the drug container 102 into the target object 7. In this embodiment, orientation sensor 80 can prevent confusion between drug transfer mode and injection mode, and prevent erroneous injection. Furthermore, the cooperation between switch 112 and orientation sensor 80 constitutes a double confirmation mechanism to avoid erroneous operation by either switch 112 or orientation sensor 80.

[0049] Referring to Figure 13, Figure 13 is a schematic diagram showing an adapter 22 according to one embodiment of the present invention.

[0050] The main difference between adapter 22 and the aforementioned adapter 12 is that, as shown in Figure 13, adapter 22 includes a vent hole 220 and an air needle 222. The air needle 222 is connected to the vent hole 220. When the drug container 3 is loaded into adapter 22, the air needle 222 penetrates the drug container 3. In this way, the injection member 100 can directly draw the drug solution 5 from the drug container 3 without the need to pre-inject a specified amount of air into the drug container 3.

[0051] Referring again to Figure 8, since the adapter 12 does not have a vent hole or air needle, when the orientation sensor 80 detects that the injection end E1 of the injection body 10 is facing upward, the drive mechanism 106 responds to the orientation sensor 80 by driving the movable member 104 to move linearly toward the injection member 100, first injecting a specified amount of air from the drug container member 102 into the drug container 3 loaded into the adapter 12, and then driving the movable member 104 to move linearly away from the injection member 100, thereby transferring the drug solution 5 from the drug container 3 to the drug container member 102. The specified amount of air injected into the drug container 3 is used to balance the pressure inside the drug container 3, so that the drug solution 5 can be smoothly transferred from the drug container 3 to the drug container member 102 in the next operation.

[0052] Referring to Figure 14, Figure 14 is a schematic diagram showing an injection device 9 according to one embodiment of the present invention.

[0053] The main difference between the injection device 9 and the aforementioned injection device 1 is that, as shown in Figure 14, the drug containment member 102 of the injection device 9 includes a partition wall 1020, and the injection member 100 of the injection device 9 includes two needle ends 100a and 100b located on either side. In this embodiment, one of the two needle ends 100a and 100b penetrates the partition wall 1020, connecting the injection member 100 to the drug containment member 102.

[0054] Referring to Figure 15, Figure 15 is a schematic diagram showing an injection device 11 according to one embodiment of the present invention.

[0055] The main difference between the injection device 11 and the aforementioned injection device 1 is that, as shown in Figure 15, the shell 108 of the injection device 11 includes a first subshell 108a and a second subshell 108b. In this embodiment, the injection member 100, the drug container member 102, and the movable member 104 are located within the first subshell 108a, and the drive mechanism 106 is located within the second subshell 108b. The second subshell 108b is detachably engaged with the first subshell 108a, and the drive mechanism 106 is detachably engaged with the movable member 104. Thus, the first subshell 108a and its associated components and the second subshell 108b and its associated components can be removed from each other after injection, the first subshell 108a and its associated components are disposable after injection, and the second subshell 108b and its associated components are disposable or reusable after injection.

[0056] Referring to Figure 16, Figure 16 is a schematic diagram showing an injection device 13 according to one embodiment of the present invention.

[0057] The main difference between the injection device 13 and the aforementioned injection device 1 is that, as shown in Figure 16, the shell 108 of the injection device 13 includes a first subshell 108a and a second subshell 108b. In this embodiment, the injection member 100, drug container member 102, movable member 104, and transmission structure 1062 of the drive mechanism 106 are located in the first subshell 108a, and the drive member 1060 of the drive mechanism 106 is located in the second subshell 108b. The second subshell 108B is detachably engaged with the first subshell 108a, and the drive member 1060 is detachably engaged with the transmission structure 1062. Thus, the first subshell 108a and its associated components and the second subshell 108b and its associated components can be removed from each other after injection, the first subshell 108a and its associated components are disposable after injection, and the second subshell 108b and its associated components are disposable or reusable after injection.

[0058] Furthermore, all of the embodiments described above can be implemented individually or in combination depending on the actual application.

[0059] As described above, the injection device of the present invention achieves automatic drug injection by using a drive mechanism to drive a movable member and move it along the longitudinal axis of the drug container. Furthermore, the injection device of the present invention is equipped with an adapter for loading a drug container, which allows the drug solution to be automatically transferred from the drug container to the drug container by activating the drive mechanism. Thus, the user does not need to hold the drug container against the injection body or manually pull or push the movable member to move it. Therefore, the injection device of the present invention allows for easy and automatic transfer of drug from the drug container to the injection device, enabling automatic drug injection with minimal manual operation. This improves injection operability and ensures injection safety by minimizing human error. Moreover, since the transfer of drug from the drug container to the injection device is automated and does not require manual operation, self-administration by laypeople becomes possible.

[0060] Those skilled in the art will readily understand that numerous modifications and changes can be made to the apparatus and method while maintaining the teachings of the present invention. Accordingly, the above disclosure should be construed as being limited only by the boundaries and limits of the appended claims.

Claims

1. An injection device, said injection device, An injection body, wherein an injection end and a non-injection end are defined on both sides of the injection body, and the injection body includes an injection member, a drug containment member, a movable member, and a drive mechanism, wherein the injection member is located at the injection end and is in fluid communication with the drug containment member, the movable member is movably disposed within the drug containment member, and the drive mechanism is located at the non-injection end and engages with the movable member, An adapter that is detachably assembled to the injection end, wherein the injection member protrudes into the adapter, and the adapter includes: When the drive mechanism rotates in a first direction, the movable member moves linearly toward the non-injection end along the longitudinal axis of the drug-containing member, and when the drive mechanism rotates in a second direction, the movable member moves linearly toward the injection end along the longitudinal axis of the drug-containing member, with the first direction being opposite to the second direction. injection device.

2. The injection device according to claim 1, wherein when a drug container is loaded into the adapter, the injection member penetrates into the drug container, and the drive mechanism engages with the movable member to drive the movable member, causing it to move linearly along the longitudinal axis of the drug storage member toward the non-injection end, thereby transferring the drug solution from the drug container to the drug storage member.

3. The injection device according to claim 1, wherein the adapter includes a sleeve portion for holding a drug container.

4. The injection device according to claim 3, wherein the sleeve portion is transparent or includes a window, thereby allowing the user to inspect the drug container loaded into the adapter and the drug solution inside the drug container.

5. The injection device according to claim 1, wherein the injection body further includes a shell and a cover, the drug-containing member, the movable member, and the drive mechanism are disposed within the shell, the injection member protrudes from the shell, and the cover is movably disposed on the shell with respect to the injection member.

6. The injection device according to claim 5, wherein when the adapter is assembled to the injection end, the adapter pushes the cover and moves toward the non-injection end, and the injection member is exposed from the cover and protrudes into the adapter.

7. The injection device according to claim 6, wherein when the adapter is removed from the injection end, the cover automatically returns to a state that covers the injection member.

8. The injection device according to claim 5, wherein when the injection body is positioned on an object by the injection end, the object pushes the cover and moves toward the non-injection end, thereby exposing the injection member from the cover and penetrating the object.

9. The injection device according to claim 8, wherein the cover includes an extension located within the shell, the injection body further includes an injection sensor positioned relative to the extension, and when the cover moves toward the non-injection end and the injection sensor senses the extension, the drive mechanism drives the movable member in response to the injection sensor to move linearly toward the injection member, and the injection member injects a drug solution from the drug container into the target object.

10. The injection device according to claim 8, wherein when the injection body moves away from the object, the cover automatically returns to a state that covers the injection member.

11. The injection device according to claim 10, wherein the cover is self-locking when it automatically returns to a state that covers the injection member.

12. The injection device according to claim 5, wherein the shell includes a first subshell and a second subshell, the injection member, the drug-containing member, and the movable member are disposed within the first subshell, the drive mechanism is disposed within the second subshell, the second subshell is detachably engaged with the first subshell, and the drive mechanism is detachably engaged with the movable member.

13. The injection device according to claim 5, wherein the shell includes a first subshell and a second subshell, the drive mechanism includes a drive member and a transmission structure that engages with the drive member, the injection member, the drug containment member, the movable member and the transmission structure are disposed within the first subshell, the drive member is disposed within the second subshell, the second subshell is detachably engaged with the first subshell, and the drive member is detachably engaged with the transmission structure.

14. The injection device according to claim 1, wherein the injection body further includes a communication module that communicates with an electronic device, and the injection data of the injection device is transmitted to the electronic device via the communication module.

15. The injection device according to claim 1, wherein the injection body further includes an orientation sensor for sensing the orientation of the injection device, and when the orientation sensor senses that the injection end is facing upward, the drive mechanism responds to the orientation sensor by driving the movable member to move linearly away from the injection member.

16. The injection device according to claim 1, wherein the injection body further includes an orientation sensor for sensing the orientation of the injection device, and when the orientation sensor senses that the injection end is facing upward, the drive mechanism, in response to the orientation sensor, drives the movable member to move linearly toward the injection member, injecting a specified amount of air from the drug containment member into the drug container loaded in the adapter, and then drives the movable member to move linearly away from the injection member, transferring the drug solution from the drug container into the drug containment member.

17. The injection device according to claim 1, wherein the injection body further includes a direction sensor for sensing the orientation of the injection device and a switch for activating the drive mechanism, and when the switch is triggered and the direction sensor senses that the injection end is facing downward, the drive mechanism, in response to the switch and the direction sensor, drives the movable member to move linearly toward the injection member.

18. The injection device according to claim 1, wherein the drug-containing member includes a partition wall, and the injection member includes two needle ends positioned on both sides, and one of the two needle ends penetrates the partition wall to connect the injection member to the drug-containing member.

19. The injection device according to claim 1, wherein the adapter includes a vent and an air needle, the air needle being connected to the vent, and when a drug container is loaded into the adapter, the air needle penetrates the drug container.

20. The injection device according to claim 1, wherein the movable member includes a first engaging portion, the drive mechanism includes a second engaging portion, the first engaging portion engages with the second engaging portion, and thereby the drive mechanism drives the movable member to move linearly toward or away from the injection end.

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