Drug delivery device

Abstract

The present disclosure describes a drug introduction instrument, including a drug storage device and a propulsion device, the drug storage device includes a sealing tube for loading drugs, and a piston, the propulsion device includes an assembly frame, a driving motor, a screw, and a transmission mechanism; the assembly frame includes a first assembly plate with a first through hole and a second assembly plate with a second through hole, the screw has an external thread, the transmission mechanism has a first gear and a second gear that are meshed with each other, the first gear is sleeved on the output shaft of the driving motor, the second gear has an internal thread and is sleeved on the screw, the sealing tube is connected to the second assembly plate, and the screw passes through the first through hole and the second through hole and abuts against the piston. In the drug introduction instrument involved in the present disclosure, the propulsion device can push the piston of the drug storage device to move along the length direction of the sealing tube and push out the drug located in the sealing tube. The rate and flow rate of drug pushout can be controlled by controlling the propulsion speed of the propulsion device, making the operation of accurately controlling drug pushout easier and more convenient.

Description

Technical Field

[0001] The present disclosure generally relates to a drug introduction device, and more particularly to a drug introduction device with a propulsion device. Background Art

[0002] In the medical field or medical cosmetology field, using liquid medicine for treatment is a common method. Usually, the liquid medicine is stored in a storage container, and when treatment is needed, the operator will guide the liquid medicine to the treatment area through a drug introduction device.

[0003] A drug introduction instrument generally includes a sealed tube for containing drugs, and a piston disposed inside the sealed tube and movable along the sealed tube, and the drugs are discharged by pushing the piston when in use. At present, the piston of most drug introduction instruments requires an operator to hold a push rod to push the piston. However, in the above-mentioned existing drug introduction instruments, since the operator manually pushes the piston, it is not easy to accurately control the rate and flow rate of the drug liquid when introducing the drugs.

[0004] Therefore, a drug introduction device with a propulsion device is needed. Summary of the invention

[0005] The present disclosure is proposed in view of the above-mentioned prior art conditions, and its purpose is to provide a drug introduction instrument with a propulsion device.

[0006] To this end, the present disclosure provides a drug introduction instrument, which includes a drug storage device and a propulsion device, wherein the drug storage device includes a sealing tube for loading drugs and having a discharge port, and a piston arranged in the sealing tube and movable along the length direction of the sealing tube, and the propulsion device includes an assembly frame and a driving motor, a screw, and a transmission mechanism arranged on the assembly frame; the assembly frame has a first assembly plate and a second assembly plate arranged opposite to each other, the first assembly plate has a first through hole and the second assembly plate has a second through hole, the driving motor has an output shaft, the screw is columnar and has an external thread arranged on the outer periphery, the transmission mechanism has a first gear and a second gear meshing with each other, the first gear is sleeved on the output shaft, an internal thread matching the external thread of the screw is arranged on the inner periphery of the second gear, and the second gear is sleeved on the screw, the sealing tube is connected to a side of the second assembly plate away from the first assembly plate in a manner that the piston faces the second through hole, the screw passes through the first through hole and the second through hole in sequence, and the head of the screw abuts against the piston.

[0007] In the drug introduction device involved in the present disclosure, the propulsion device can push the piston of the drug storage device to move along the length direction of the sealed tube and push out the drug in the sealed tube. The output shaft of the driving motor of the propulsion device drives the transmission mechanism to rotate; the transmission mechanism drives the screw to make a linear motion, and the screw pushes the piston to move along the sealed tube; by controlling the propulsion speed of the propulsion device, the rate and flow rate of drug push can be controlled, making the operation of accurately controlling drug push easier and more convenient.

[0008] In addition, in the preparation method involved in the present disclosure, optionally, the propulsion device includes a hollow cylindrical guide member provided on the first assembly plate, the guide member has a guide groove and is sleeved on the screw, the guide groove is formed on the inner circumference of the guide member and extends along the length direction of the guide member; a guide portion protruding radially outward is provided at the tail of the screw, and the guide portion is embedded in the guide groove. In this way, the possibility of the screw following the rotation of the transmission mechanism can be reduced, and the driving accuracy of the propulsion device can be further improved.

[0009] In addition, in the preparation method of the present disclosure, optionally, the difference between the outer diameter of the screw and the inner diameter of the first through hole is smaller than the width or length of the guide portion. In this case, when the screw moves along the first through hole, it is difficult for the guide portion to pass through the first through hole, thereby limiting the screw through the first through hole.

[0010] In addition, in the preparation method of the present disclosure, optionally, an ear-shaped flange is formed at one end of the sealing tube away from the discharge port. In this case, the flange of the sealing tube can serve as a mark.

[0011] In addition, in the preparation method of the present disclosure, optionally, the diameter of the first through hole is not less than the diameter of the screw and less than the maximum width of the flange. In this case, the first through hole can play a role in limiting the sealing tube.

[0012] In addition, in the preparation method of the present disclosure, optionally, a card interface is provided on the assembly frame, the screw rod passes through the card interface, and the flange of the drug storage device is card-engaged with the card interface. Thus, the drug storage device can be connected to the propulsion device in a card-engaged manner.

[0013] In addition, in the preparation method of the present disclosure, optionally, the outer diameter of the screw is smaller than the inner diameter of the sealing tube, and a pusher head is provided at the head of the screw, and the outer diameter of the pusher head is not larger than the inner diameter of the sealing tube and not smaller than the outer diameter of the screw. Thus, the screw can abut against the piston through the pusher head, and the pusher head can improve the force condition of the piston to a certain extent.

[0014] In addition, in the preparation method of the present disclosure, optionally, the propulsion device further comprises a housing having a storage space, and the assembly frame, the drive motor, the screw, and the transmission mechanism are arranged in the storage space. Thus, the housing can protect the internal components and serve as a decoration.

[0015] In addition, in the preparation method of the present disclosure, optionally, a columnar handle is further included, and a clamping portion is provided on the outside of the housing, and the clamping portion is clamped with the handle. Thus, the drug introduction instrument can be held by the handle for easy operation.

[0016] In addition, in the manufacturing method of the present disclosure, optionally, the drive motor is arranged on the first assembly plate in such a manner that the output shaft faces the second assembly plate, and the first gear is arranged on the second assembly plate and sleeved on the output shaft. Thus, the first gear and the drive motor can be firmly fixed by the first assembly plate and the second assembly plate.

[0017] According to the present disclosure, a drug introduction device having a propulsion device can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present disclosure will now be explained in further detail by way of example only with reference to the accompanying drawings, in which:

[0019] Figure 1 is a schematic diagram showing a drug storage device involved in an example of the present disclosure.

[0020] Figure 2 is a schematic diagram showing a propulsion device involved in an example of the present disclosure.

[0021] Figure 3 It is a schematic diagram showing the cooperation between the screw and the transmission mechanism involved in the example of the present disclosure.

[0022] Figure 4 is a bottom view showing a second mounting plate according to an example of the present disclosure.

[0023] Figure 5 is a schematic diagram showing a guide member according to an example of the present disclosure.

[0024] Figure 6 is a schematic diagram showing the principle of limiting the screw rod based on the first through hole involved in the example of the present disclosure.

[0025] Figure 7 is a schematic diagram showing a second mounting board according to an example of the present disclosure.

[0026] Figure 8 is a schematic diagram showing a housing involved in an example of the present disclosure.

[0027] Fig. 9 is a schematic diagram showing a battery assembly involved in an example of the present disclosure. DETAILED DESCRIPTION

[0028] Hereinafter, the preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the following description, the same symbols are assigned to the same components, and repeated descriptions are omitted. In addition, the accompanying drawings are only schematic diagrams, and the ratio of the dimensions of the components or the shapes of the components may be different from the actual ones.

[0029] It should be noted that the terms "including" and "having" and any variations thereof in the present disclosure, such as a process, method, system, product or device that includes or has a series of steps or units, are not necessarily limited to those steps or units clearly listed, but may include or have other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] In addition, the subheadings and the like involved in the following description of the present disclosure are not intended to limit the content or scope of the present disclosure, but are merely used as a reminder for reading. Such subheadings should neither be understood as being used to divide the content of the article, nor should the content under the subheading be limited to the scope of the subheading.

[0031] The present disclosure mainly relates to a drug introduction device with a propulsion device, hereinafter referred to as the drug introduction device. The drug introduction device involved in the present disclosure can be used to store drugs and guide drugs to a specific area.

[0032] In some examples, the drug introduction instrument may include a drug storage device and a propulsion device. The drug storage device is used to contain and provide drugs. The propulsion device can be used to push out the drugs in the drug storage device. In some examples, the drug storage device may also be referred to as a sealing tube, a liquid storage tube, a liquid storage mechanism, or a drug storage mechanism. In some examples, the propulsion device may also be referred to as a propeller, a propulsion mechanism, or a propulsion assembly.

[0033] Figure 1 is a schematic diagram showing a drug storage device 10 according to an example of the present disclosure.

[0034] See also Figure 1 In some examples, the drug storage device 10 may include a sealed tube 11 and a piston 12. In some examples, the drug storage device 10 may be used to load drugs. In some examples, the sealed tube 11 may have a discharge port 13. In some examples, the piston 12 may be disposed in the sealed tube 11 and may move along the length direction of the sealed tube 11.

[0035] In some examples, the drug storage device 10 may include a rubber stopper 14 disposed on the sealing tube 11. In some examples, the needle 15 may be inserted into the rubber stopper 14 to form a discharge port 13. In some examples, when the piston 12 approaches the rubber stopper 14, the drug inside the sealing tube 11 may be squeezed by the piston 12 and squeezed out of the discharge port 13.

[0036] In some examples, an ear-shaped flange is formed at one end of the sealing tube 11 away from the discharge port 13. In this case, the flange of the sealing tube 11 can play a marking role. Specifically, in some examples, the flange can play a role in marking the end position of the sealing tube 11 and the circumferential position of the sealing tube 11. In some examples, the position of the sealing tube 11 can be determined by the marking function of the flange.

[0037] Figure 2 is a schematic diagram showing a propulsion device 100 according to an example of the present disclosure. Figure 3 Schematic diagram showing the cooperation between the screw rod 140 and the transmission mechanism 130 involved in the example of the present disclosure.

[0038] In some examples, the drug in the drug storage device 10 can be squeezed out by the propulsion device 100 according to the present disclosure.

[0039] In some examples, the propulsion device 100 may include an assembly frame 110, a drive motor 120, a transmission mechanism 130, and a screw 140. In some examples, the drive motor 120, the transmission mechanism 130, and the screw 140 may be disposed on the assembly frame 110. In some examples, the drive motor 120, the transmission mechanism 130, and the screw 140 may be collectively referred to as a drive mechanism. In some examples, the assembly frame 110 may be used to carry and fix the drive mechanism.

[0040] In some examples, the drive motor 120 is used to provide power. In some examples, the drive motor 120 may have an output shaft 121 .

[0041] In some examples, the transmission mechanism 130 is used to transmit the power of the drive motor 120 to the screw 140. In some examples, the transmission mechanism 130 may include a first gear 131 and a second gear 132 that mesh with each other. In some examples, the first gear 131 may be sleeved on the output shaft 121. The second gear 132 is threadedly connected to the screw 140. In some examples, the transmission mechanism 130 is used to convert the rotational motion of the output shaft 121 into the linear motion of the screw 140. In some examples, an internal thread is provided on the inner circumference of the second gear 132.

[0042] In some examples, the screw 140 is used to convert the rotational motion of the transmission mechanism 130 into a linear motion. In some examples, the screw 140 is cylindrical and has an external thread arranged on the outer periphery. In some examples, the screw 140 can refer to a lead screw or a threaded rod. In some examples, the external thread of the screw 140 can match the internal thread of the second gear 132. In some examples, the second gear 132 can be sleeved on the screw 140.

[0043] In some examples, the assembly jig 110 may have a first assembly plate 111. In some examples, the assembly jig 110 may have a second assembly plate 112. In some examples, the first assembly plate 111 and the second assembly plate 112 may be disposed opposite to each other.

[0044] In some examples, the screw 140 may pass through the first assembly plate 111 and the second assembly plate 112. In some examples, the first assembly plate 111 may have a first through hole 1111. In some examples, the second assembly plate 112 may have a second through hole 1121 (see Figure 7 In some examples, the screw 140 may pass through the first through hole 1111 and the second through hole 1121 in sequence.

[0045] In some examples, the propulsion device 100 can be assembled with the drug storage device 10. In some examples, the drug storage device 10 can be assembled on the assembly frame 110. In some examples, the sealing tube 11 can be connected to the side of the second assembly plate 112 away from the first assembly plate 111 in a manner that the piston 12 faces the second through hole 1121.

[0046] In some examples, the medicine storage device 10 can be disposable. In some examples, the medicine storage device 10 can be snap-fitted to the propulsion device 100. In some examples, the head of the screw 140 can abut against the piston 12. Thus, the medicine storage device 10 is easy to disassemble, install and replace. In some examples, when the piston 12 of the medicine storage device 10 needs to reciprocate, the screw 140 can also be connected to the piston 12.

[0047] Figure 4 1 is a bottom view showing the second mounting plate 112 according to the example of the present disclosure.

[0048] In some examples, the diameter of the first through hole 1111 may be not less than the diameter of the screw 140 and less than the maximum width of the flange. In this case, the first through hole 1111 can play a role in limiting the sealing tube 11.

[0049] In some examples, a card interface 113 is provided on the assembly frame 110. In some examples, the screw 140 can penetrate the card interface 113. In some examples, the card interface 113 can be provided on the second assembly plate 112. In some examples, the flange of the drug storage device 10 can be snapped to the card interface 113. Thus, the drug storage device 10 can be connected to the propulsion device 100 in a manner of snapping to the card interface 113.

[0050] In some examples, the outer diameter of the screw 140 may be smaller than the inner diameter of the sealing tube 11. In some examples, a push head 141 may be provided at the head of the screw 140. In some examples, the outer diameter of the push head 141 may be no larger than the inner diameter of the sealing tube 11 and no smaller than the outer diameter of the screw 140. Thus, the screw 140 can abut against the piston 12 through the push head 141, and the push head 141 can improve the force condition of the piston 12 to a certain extent. In some examples, the push head 141 can be detachably clamped to the head of the screw 140. Thus, the push head 141 is easy to replace. In some examples, the push head 141 can be integrally formed with the screw 140.

[0051] In the drug introduction device involved in the present disclosure, the propulsion device 100 can push the piston 12 of the drug storage device 10 to move along the length direction of the sealed tube 11, and push out the drug in the sealed tube 11. The output shaft 121 of the driving motor 120 of the propulsion device 100 drives the transmission mechanism 130 to rotate; the transmission mechanism 130 drives the screw 140 to make a linear motion, and the screw 140 pushes the piston 12 to move along the sealed tube 11; by controlling the propulsion speed of the propulsion device 100, the rate and flow rate of drug pushout can be controlled, making the operation of accurately controlling drug pushout easier and more convenient.

[0052] Figure 5 is a schematic diagram showing a guide member 150 according to an example of the present disclosure.

[0053] In some examples, it is considered that when the second gear 132 rotates, the screw 140 may be driven to rotate, which may further cause the screw 140 to be unable to immediately convert the rotational motion of the second gear 132 into the linear motion of the screw 140 itself, or the speed of the screw 140 fluctuates when the linear motion is performed. Therefore, in some examples, in order to improve the accuracy of the driving mechanism pushing the piston 12 to move, the guide 150 may be used to limit the screw 140 from rotating around its axis, so that the screw 140 can accurately convert the rotational motion of the second gear 132 into the movement of the screw 140 itself in real time when it stops rotating.

[0054] In some examples, the guide 150 is used to improve the accuracy of the transmission of the screw 140. In some examples, the guide 150 may have a guide groove 151. Correspondingly, a guide portion 142 protruding radially outward may be provided at the tail of the screw 140. In some examples, the guide groove 151 may extend along the length direction of the guide 150. In some examples, the guide groove 151 may be configured to be parallel to the length direction of the screw 140. In some examples, the guide portion 142 may slide along the guide groove 151.

[0055] In some examples, the guide member 150 may be in a hollow cylindrical shape. In some examples, the guide member 150 may be sleeved on the screw 140. In some examples, the guide groove 151 may be formed on the inner circumference of the guide member 150 and extend along the length direction of the guide member 150. In some examples, the guide portion 142 may be embedded in the guide groove 151. Thus, the possibility of the screw 140 following the rotation of the transmission mechanism 130 can be reduced, and the driving accuracy of the propulsion device 100 can be further improved.

[0056] In some examples, the guide 150 may be provided at the first mounting plate 111 .

[0057] Figure 6 1 is a schematic diagram showing the principle of limiting the screw rod 140 based on the first through hole 1111 involved in the example of the present disclosure.

[0058] In some examples, the propulsion device 100 may have a position limiting function. Specifically, in some examples, the propulsion device 100 may have a structural design for limiting the screw 140. In some examples, the propulsion device 100 may have a position limiting portion. In some examples, the position limiting portion is configured to block the screw 140 from continuing to move along the original moving direction when the screw 140 moves to a preset position. In some examples, the propulsion device 100 may have a position limiting sensor device. In some examples, the position limiting sensor device may be configured to apply a braking signal to the drive motor 120 when the screw 140 moves to a preset position to stop the screw 140 from moving.

[0059] In some examples, the difference between the outer diameter of the screw 140 and the inner diameter of the first through hole 1111 may be smaller than the width or length of the guide portion 142. In this case, when the screw 140 moves along the first through hole 1111, it is difficult for the guide portion 142 to pass through the first through hole 1111, so that the screw 140 can be limited by the first through hole 1111. In addition, by limiting the inner diameter of the first through hole 1111, the internal structural design of the propulsion device 100 can also be simplified.

[0060] In some examples, the screw rod 140 may also be limited by the second through hole 1121 .

[0061] Figure 7 is a schematic diagram showing a second mounting plate 112 according to an example of the present disclosure.

[0062] In some examples, the drive motor 120 may be disposed on the assembly frame 110. In some examples, the drive motor 120 may be disposed on the first assembly plate 111. In some examples, the drive motor 120 may be disposed on the first assembly plate 111 in a manner that the output shaft 121 faces the second assembly plate 112. In some examples, the first gear 131 may be sleeved on the output shaft 121.

[0063] In some examples, the first gear 131 may be disposed on the assembly frame 110. In some examples, the first gear 131 may be disposed on the second assembly plate 112. Thus, the first gear 131 and the driving motor 120 may be firmly fixed by the first assembly plate 111 and the second assembly plate 112.

[0064] In some examples, the second gear 132 can be disposed on the mounting frame 110 . In some examples, the second gear 132 can be disposed on the second mounting plate 112 .

[0065] In some examples, the second assembly plate 112 can be used to carry the first gear 131. In some examples, a first bearing portion 1122 can be provided on the second assembly plate 112. In some examples, the first gear 131 can be provided on the first bearing portion 1122. In some examples, the first bearing portion 1122 can be a raised structure. In some examples, the raised structure can contact the first gear 131. In some examples, the contact area between the raised structure and the first gear 131 can be relatively small to reduce the friction force on the first gear 131 when it rotates.

[0066] In some examples, the second assembly plate 112 can be used to carry the second gear 132. In some examples, a second bearing portion 1123 can be provided on the second assembly plate 112. In some examples, the second gear 132 can be provided on the second bearing portion 1123. In some examples, the second bearing portion 1123 can have a groove-like structure. In some examples, the screw 140 can penetrate the groove-like structure.

[0067] In some examples, the diameter of the first gear 131 may be smaller than the diameter of the second gear 132. Thus, the transmission mechanism 130 may have a deceleration effect. In some examples, the diameter of the first gear 131 may also be larger than the diameter of the second gear 132.

[0068] Figure 8 is a schematic diagram showing a housing 160 according to an example of the present disclosure.

[0069] In some examples, the propulsion device 100 further includes a housing 160. In some examples, a receiving space is formed inside the housing 160. In some examples, the assembly frame 110, the drive motor 120, the screw 140, and the transmission mechanism 130 can be disposed in the receiving space. Thus, the housing 160 can protect the internal components and serve as a decoration.

[0070] In some examples, the propulsion device 100 may include a handle. In some examples, the handle may be columnar. A snap-fit ​​portion 161 is provided outside the housing 160. In some examples, the handle may snap-fit ​​into the snap-fit ​​portion 161. Thus, the drug introduction device can be held by the handle for easy operation.

[0071] Fig. 9 is a schematic diagram showing a battery assembly 170 involved in an example of the present disclosure.

[0072] In some examples, the propulsion device 100 may further include a battery assembly 170. In some examples, the battery assembly 170 may include a battery and a battery fixing portion 171. In some examples, the battery fixing portion 171 may be used to fix the battery. In some examples, the battery fixing portion 171 may include a side fixing member 172 and a top support member 173. In some examples, the battery assembly 170 is provided inside the propulsion device 100 to improve the integration of the internal structure of the propulsion device 100 and facilitate portability.

[0073] In some examples, the side fixing member 172 may be plate-shaped. In some examples, the shape of the side fixing member 172 may match the contour of the battery. In some examples, the side fixing member 172 may be disposed between the battery and the drive mechanism. The side fixing member 172 separates the battery from the drive mechanism, which may reduce the possibility that the parts of the drive mechanism may hit the battery during movement.

[0074] In some examples, the top support 173 may be in the shape of a cone. In some examples, the top support 173 may be disposed on the assembly frame 110. In some examples, the top support 173 may be disposed on the first assembly plate 111. In some examples, the top support 173 may penetrate the first assembly plate 111 and be disposed on the second assembly plate 112. In some examples, the top support 173 is used to reduce the possibility of poor contact and unstable output current caused by shaking of the battery during assembly. In some examples, a spring may be disposed on the top support 173.

[0075] In some examples, a circuit board or a control module may be disposed inside the propulsion device 100 .

[0076] According to the present disclosure, a drug introduction device having a propulsion device 100 can be provided.

[0077] Although the present disclosure is specifically described above in conjunction with the accompanying drawings and examples, it is to be understood that the above description does not limit the present disclosure in any form. Those skilled in the art may modify and change the present disclosure as needed without departing from the essential spirit and scope of the present disclosure, and these modifications and changes all fall within the scope of the present disclosure.

Claims

1. A drug introduction device, characterized in that: The drug introduction instrument includes a drug storage device and a propulsion device, the drug storage device is clamped to the propulsion device, the drug storage device includes a sealing tube for loading drugs and having a discharge port, and a piston arranged in the sealing tube and movable along the length direction of the sealing tube, the propulsion device includes an assembly frame and a driving motor, a screw, and a transmission mechanism arranged on the assembly frame; the assembly frame has a first assembly plate and a second assembly plate arranged opposite to each other, the first assembly plate has a first through hole and the second assembly plate has a second through hole, the driving motor has an output shaft, the screw is columnar and has an external thread arranged on the outer periphery, the transmission mechanism has a first gear and a second gear meshing with each other, the first gear is sleeved on the output shaft, an internal thread matching the external thread of the screw is arranged on the inner periphery of the second gear, and the second gear is sleeved on the output shaft The screw, the sealing tube is connected to the side of the second assembly plate away from the first assembly plate in a manner that the piston faces the second through hole, the screw passes through the first through hole and the second through hole in sequence and the head of the screw abuts against the piston; the second gear is arranged on the second assembly plate; the drive motor is arranged on the first assembly plate in a manner that the output shaft faces the second assembly plate, the first gear is arranged on the second assembly plate and is sleeved on the output shaft; the propulsion device also includes a shell, a accommodating space is formed inside the shell, the assembly frame, the drive motor, the screw, and the transmission mechanism are arranged in the accommodating space, and the medicine storage device is arranged outside the accommodating space; the screw is configured to push the piston to move along the sealing tube, and the moving direction of the screw is consistent with the driving direction of the drive motor.

2. The drug introduction device according to claim 1, characterized in that: The propulsion device includes a hollow cylindrical guide member arranged on the first assembly plate, the guide member having a guide groove and being sleeved on the screw rod, the guide groove being formed on the inner circumference of the guide member and extending along the length direction of the guide member; a guide portion protruding radially outward is arranged at the tail of the screw rod, and the guide portion is embedded in the guide groove.

3. The drug introduction device according to claim 2, characterized in that: A difference between an outer diameter of the screw and an inner diameter of the first through hole is smaller than a width or a length of the guide portion.

4. The drug introduction device according to claim 1, characterized in that: An ear-shaped flange is formed at one end of the sealing tube away from the discharge port.

5. The drug introduction device according to claim 4, characterized in that: The diameter of the first through hole is not less than the diameter of the screw and is less than the maximum width of the flange.

6. The drug introduction device according to claim 4, characterized in that: A card interface is arranged on the assembly frame, the screw rod passes through the card interface, and the flange of the medicine storage device is card-connected to the card interface.

7. The drug introduction device according to claim 1, characterized in that: The outer diameter of the screw is smaller than the inner diameter of the sealing tube. A pusher head is arranged at the head of the screw. The outer diameter of the pusher head is not larger than the inner diameter of the sealing tube and not smaller than the outer diameter of the screw.

8. The drug introduction device according to claim 1, characterized in that: It also includes a columnar handle, and a clamping portion is arranged outside the shell, and the clamping portion is clamped with the handle.

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