Injection system

Abstract

The embodiments of the present disclosure provide an injection system, which comprises an injector, a driving mechanism and a vibrating mechanism. Specifically, an output end of the injector is connected to an input end of a retention needle, the driving mechanism is connected to the injector to drive the injector to inject liquid into the retention needle, and the vibrating mechanism comprises a first vibrating component and a second vibrating component. The first vibrating component is in contact with the injector and is used to transmit a vibrating wave to the injector. The second vibrating component is arranged close to the output end of the injector and is used to contact the retention needle and transmit a vibrating wave to the retention needle. According to the injection system, the liquid in the retention needle is agitated under the action of the vibrating wave generated by the first vibrating component and the vibrating wave generated by the second vibrating component, and the agitated liquid collides with the residual protein and drug on the inner wall of the retention needle, so that the residual protein and drug are detached from the inner wall of the retention needle.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure belong to the technical field of medical devices, and particularly relate to an injection system. BACKGROUND

[0002] A venous indwelling needle is a common medical device used for intermittent, continuous or daily intravenous infusion treatment. The indwelling needle is fixed on the patient's body for a long time, and the liquid enters the patient's body through the indwelling needle to provide medicine for the body. When the liquid medicine passes through the indwelling needle, it may be coated on the inner wall of the indwelling needle, causing the indwelling needle to have residual medicine, thereby affecting the treatment effect of the patient. SUMMARY

[0003] Embodiments of the present disclosure aim to at least solve one of the technical problems existing in the prior art, and provide an injection system, which comprises:

[0004] an indwelling needle;

[0005] an injector, an output end of the injector being connected to an input end of the indwelling needle;

[0006] a driving mechanism, the driving mechanism being connected to the injector to drive the injector to inject liquid into the indwelling needle;

[0007] a vibration mechanism, the vibration mechanism comprising: a first vibration component and a second vibration component, the first vibration component being in contact with the injector, the first vibration component being configured to transmit vibration waves to the injector, the second vibration component being arranged close to the output end of the injector, the second vibration component being configured to contact the indwelling needle and transmit vibration waves to the indwelling needle.

[0008] In some embodiments of the present disclosure, the first vibration component comprises:

[0009] a controller;

[0010] a vibration piece, the controller being electrically connected to the vibration piece, the vibration piece being arranged on a piston of the injector, the vibration piece being located at an end of the piston away from the output end of the injector.

[0011] In some embodiments of the present disclosure, the material of the vibration piece is piezoelectric ceramic, and the vibration frequency range of the piezoelectric ceramic is 20Hz-3000Hz.

[0012] In some embodiments of the present application, the injection system further comprises a support assembly, the support assembly forms a containing space with a window, the drive mechanism extends from the containing space to the outside of the containing space, the syringe is supported on the support assembly, the syringe is located on one side of the window of the containing space, and the controller and the second vibration assembly are both arranged on the support assembly and located outside the containing space.

[0013] In some embodiments of the present application, the drive mechanism comprises:

[0014] a drive motor;

[0015] a lead screw, the drive motor is drivingly connected to the lead screw;

[0016] a sliding block, the sliding block is sleeved on the lead screw;

[0017] a connecting piece, the connecting piece connects the sliding block and the piston, the connecting piece extends from the containing space to the outside of the containing space, and the connecting piece is matched with the window.

[0018] In some embodiments of the present application, the connecting piece comprises a connecting portion, the connecting portion is formed with a connecting groove, part of a finger supporting portion of the piston is located in the connecting groove, the vibrator is connected with the finger supporting portion and located in the connecting groove.

[0019] In some embodiments of the present application, a gasket is further arranged in the connecting groove, and the vibrator, the finger supporting portion and the gasket are sequentially arranged in the connecting groove in the advancing direction of the syringe.

[0020] In some embodiments of the present application, the second vibration assembly comprises:

[0021] a clamping block, the clamping block is close to the output end of the syringe, and the clamping block is provided with a clamping groove for clamping the indwelling needle;

[0022] a vibrator, the vibrator is embedded in the clamping block.

[0023] In some embodiments of the present application, the second vibration assembly further comprises:

[0024] a spring, the spring connects the clamping block and the support assembly.

[0025] In some embodiments of the present application, the spring is connected on the bottom plate of the support assembly, and the clamping block is located above the spring in the height direction of the injection system.

[0026] According to the injection system of the present application, the first vibration assembly is in contact with the syringe to transmit vibration waves to the syringe, the second vibration assembly clamps the indwelling needle and transmits vibration waves to the indwelling needle, the first vibration assembly transmits vibration waves to the syringe before the driving mechanism drives the syringe to inject liquid into the indwelling needle, the second vibration assembly transmits vibration waves to the indwelling needle, then the driving mechanism drives the syringe to advance, in the process of advancing of the syringe, the liquid in the syringe oscillates under the action of the vibration waves generated by the first vibration assembly, when the liquid with vibration waves is pushed into the indwelling needle, the vibration waves generated by the second vibration assembly act on the liquid in the indwelling needle, the liquid in the indwelling needle oscillates under the action of the vibration waves generated by the first vibration assembly and the vibration waves generated by the second vibration assembly, the liquid in the indwelling needle will not be adsorbed on the inner wall of the indwelling needle under the action of the vibration waves, thereby avoiding the accumulation of liquid medicine on the inner wall of the indwelling needle, and ensuring that the medicine can be smoothly output from the indwelling needle. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Axonometric view of an injection system according to an embodiment of the present disclosure;

[0028] Figure 2 Front view of an injection system according to an embodiment of the present disclosure; Figure 1

[0029] Top view of an injection system according to an embodiment of the present disclosure; Figure 3 Figure 1 Side view of an injection system according to an embodiment of the present disclosure;

[0030] Figure 4 Figure 1 Partial cross-sectional view of an injection system according to an embodiment of the present disclosure;

[0031] Figure 5 Enlarged view of portion A of an injection system according to an embodiment of the present disclosure; Figure 1

[0032] Structural view of an injection system according to an embodiment of the present disclosure (piston in first position); Figure 6 Figure 5 Structural view of an injection system according to an embodiment of the present disclosure (piston in second position);

[0033] Figure 7 Figure 1 Structural view of an injection system according to an embodiment of the present disclosure (piston in third position).

[0034] Figure 8 Structural view of an injection system according to an embodiment of the present disclosure (piston in third position). Figure 1

[0035] Figure 9 Figure 1

[0036] The various reference signs in the drawings represent the following:

[0037] ​​​​​​​100, injection system;

[0038] 10, syringe; 11, syringe barrel; 111, baffle; 12, piston; 121, piston rod; 122, finger rest portion;

[0039] 20, driving mechanism; 21, driving motor; 22, screw; 23, sliding block; 24, connecting piece; 241, connecting portion; 242, connecting groove; 243, opening; 25, gasket; 26, motor support seat; 27, bearing; 28, bearing support seat;

[0040] 30, vibration mechanism; 31, first vibration assembly; 311, controller; 312, vibration piece; 32, second vibration assembly; 321, clamping block; 3211, clamping groove; 322, vibrator; 323, spring;

[0041] 40, support assembly; 41, bottom plate; 42, side plate; 43, cover plate; 431, window; 44, support piece; 401, containing space;

[0042] 50, battery;

[0043] 60, indwelling needle. DETAILED DESCRIPTION

[0044] In order for those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is described in further detail below in combination with the drawings and specific embodiments.

[0045] Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0046] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless explicitly stated otherwise. It is also to be understood that additional or alternative steps can be employed.

[0047] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0048] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0049] like Figures 1 to 9 As shown, the first aspect of the present invention provides an injection system 100, which includes a syringe 10, a drive mechanism 20, and a vibration mechanism 30. Specifically, the output end of the syringe 10 is used to connect to the input end of an indwelling needle 60. The drive mechanism 20 is connected to the syringe 10 to drive the syringe 10 to inject liquid into the indwelling needle 60. The vibration mechanism 30 includes a first vibration component 31 and a second vibration component 32. The first vibration component 31 is in contact with the syringe 10 and is used to transmit vibration waves to the syringe 10. The second vibration component 32 is disposed near the output end of the syringe 10 and is used to contact the indwelling needle 60 and transmit vibration waves to the indwelling needle 60.

[0050] According to the injection system 100 of the present invention, a first vibration component 31 contacts the syringe 10 to transmit vibration waves to the syringe 10, and a second vibration component 32 clamps the indwelling needle 60 and transmits vibration waves to the indwelling needle 60. Before the driving mechanism 20 drives the syringe 10 to inject liquid into the indwelling needle 60, the first vibration component 31 transmits vibration waves to the syringe 10, and the second vibration component 32 transmits vibration waves to the indwelling needle 60. Then, the driving mechanism 20 drives the syringe 10 to advance. During the advancement of the syringe 10, the liquid in the syringe 10 is introduced into the first vibration component 31. The generated vibration waves cause oscillation. When the liquid with vibration waves is pushed into the indwelling needle 60, the vibration waves generated by the second vibration component 32 act on the liquid in the indwelling needle 60. The liquid in the indwelling needle 60 oscillates under the action of the vibration waves generated by the first vibration component 31 and the second vibration component 32. The liquid in the indwelling needle collides with the inner wall of the indwelling needle under the action of the vibration waves, preventing the liquid in the indwelling needle from adsorbing on the inner wall of the indwelling needle, thereby avoiding the accumulation of liquid drugs on the inner wall of the indwelling needle 60 and ensuring that the drugs can be smoothly output from the indwelling needle 60.

[0051] In some embodiments of the present invention, the injection system 100 includes: a support assembly 40, the support assembly 40 having a receiving space 401 for accommodating a drive structure, and the vibration mechanism 30 and the syringe 10 both disposed on the support assembly 40 and located outside the receiving space 401.

[0052] like Figure 1 As shown in Figure 5, the support assembly 40 includes a base plate 41, side plates 42, and a cover plate 43. The side plates 42 form a receiving space 401 on the base plate 41 to accommodate the drive mechanism 20. The cover plate 43 is disposed opposite to the base plate 41 at both ends of the side plates 42. A portion of the vibration mechanism 30 is disposed on the cover plate 43, and the portion of the vibration mechanism 30 is disposed on the base plate 41 and located outside the receiving space 401. The cover plate 43 covers a portion of the receiving space 401, and a window 431 is formed on the cover plate 43. A portion of the drive mechanism 20 extends from the window 431 to the outside of the receiving space 401 to drive the syringe 10 and the portion of the vibration mechanism 30 outside the receiving space 401. Further, the window 431 extends along the length direction of the syringe 10.

[0053] like Figure 5 , Figure 6As shown, the vibration mechanism 30 comprises a first vibration assembly 31 and a second vibration assembly 32. Specifically, the first vibration assembly 31 comprises a controller 311 and a vibration piece 312. The controller 311 is arranged on the bottom plate 41 outside the accommodating space 401, and the vibration piece 312 is arranged at one end of the syringe 10 away from the output end. The controller 311 is electrically connected with the vibration piece 312. The controller 311 can control the vibration piece 312 to vibrate, so as to transmit axial vibration waves to the syringe 10 through the vibration piece 312. The syringe 10 transmits the axial vibration waves to the indwelling needle 60, so that the liquid in the indwelling needle 60 is agitated under the action of the axial vibration waves. The second vibration assembly 32 is arranged close to the output end of the syringe 10. The second vibration assembly 32 is used for holding the indwelling needle 60 and transmitting vibration waves to the indwelling needle 60. The input end of the indwelling needle 60 is connected with the output end of the syringe 10, and the indwelling needle 60 is clamped on the second vibration assembly 32, so as to ensure the stability of the indwelling needle 60. The second vibration assembly 32 can transmit radial vibration waves to the indwelling needle 60 through vibration. The second vibration assembly 32 can have its own control device to control the generation of vibration waves, or the second vibration assembly 32 can be controlled by the controller 311 of the first vibration assembly 31 to generate vibration waves.

[0054] When the driving mechanism 20 drives the syringe 10 to inject liquid into the indwelling needle 60, the controller 311 controls the vibration piece 312 to transmit vibration waves to the piston 12 of the syringe 10, so that the piston 12 transmits the vibration waves to the liquid in the syringe 10. When the liquid enters the indwelling needle 60, the axial vibration waves still exist in the liquid. At the same time, the controller 311 controls the second vibration assembly 32 clamping the indwelling needle 60 to transmit radial vibration waves to the indwelling needle 60. The liquid in the indwelling needle 60 receives the axial vibration waves and the radial vibration waves at the same time. Under the double action of the axial vibration waves and the radial vibration waves, the liquid vibrates on the inner wall of the indwelling needle 60. The residual protein or drug in the indwelling needle 60 can be discharged from the output end of the indwelling needle 60 together with the liquid, so as to achieve the purpose of cleaning the indwelling needle 60.

[0055] Further, the vibration piece 312 is a piezoelectric ceramic. The controller 311 controls the piezoelectric ceramic to generate ultrasonic waves. The ultrasonic waves are transmitted to the liquid in the syringe 10 along the tail end of the piston 12 of the syringe 10, so that the liquid in the syringe 10 generates ultrasonic oscillation along the axial direction of the liquid. As the driving mechanism 20 drives the piston 12, the piston 12 pushes the liquid in the syringe 10 into the indwelling needle 60. The ultrasonic waves make the liquid in the indwelling needle 60 ultrasonic oscillate along the liquid flow direction of the indwelling needle 60. The residual drug and protein attached to the inner wall of the indwelling needle 60 fall off under the action of the ultrasonic oscillation and flow out of the output end of the indwelling needle 60 together with the liquid, so as to achieve the purpose of cleaning the residual substances in the indwelling needle 60.

[0056] Specifically, the vibration piece 312 is made of piezoelectric ceramic, and the piezoelectric ceramic generates a frequency range of 20 Hz to 3000 Hz. According to the situation of the residual particles in the indwelling needle 60, the controller 311 controls the piezoelectric ceramic to generate different frequencies to clean the residual particles of different sizes in the indwelling needle 60. When the residual particles in the indwelling needle 60 are relatively large, the piezoelectric ceramic can be controlled to generate ultrasonic waves of a relatively large frequency to ensure that the residual particles of a relatively large size can fall off, such as controlling the piezoelectric ceramic to generate ultrasonic waves of 3000 Hz. When the residual particles in the indwelling needle 60 are relatively small, the piezoelectric ceramic can be controlled to generate ultrasonic waves of a relatively small frequency to ensure that the residual particles of a relatively small size can fall off, such as controlling the piezoelectric ceramic to generate ultrasonic waves of 50 Hz, 100 Hz, etc. When the residual particles in the indwelling needle 60 are relatively large, relatively small, and medium in size, the piezoelectric ceramic can be controlled to alternately generate ultrasonic waves of different frequencies to ensure that the residual particles of different sizes in the indwelling needle 60 can fall off from the inner wall thereof.

[0057] In some embodiments of the present application, the second vibration assembly 32 comprises a clamping block 321, the clamping block 321 is formed with a clamping groove 3211, the clamping groove 3211 matches the shape of the indwelling needle 60, and the clamping block 321 clamps the indwelling needle 60 through the clamping groove 3211 to fix the indwelling needle 60 and ensure the stability of the indwelling needle 60. Specifically, the size of the clamping groove 3211 can be slightly smaller than the size of the clamped part of the indwelling needle 60, that is, the indwelling needle 60 and the clamping groove 3211 of the clamping block 321 can be a shrink fit, or the size of the clamping groove 3211 can be the same as the size of the indwelling needle 60 to ensure that the indwelling needle 60 will not fall out of the clamping groove 3211 when clamped by the clamping block 321. It should be noted that when the indwelling needle 60 and the clamping block 321 are shrink fit, the clamping block 321 will not affect the flow or flow rate of the indwelling needle 60, that is, the clamping block 321 will not affect the normal use of the indwelling needle 60.

[0058] In some embodiments of the present application, the second vibration assembly 32 comprises a vibrator 322, the vibrator 322 is embedded in the clamping block 321, the vibrator 322 is electrically connected with the controller 311, the controller 311 controls the vibrator 322 to vibrate, the vibrator 322 drives the clamping block 321 to vibrate together, and the clamping block 321 transmits vibration waves to the indwelling needle 60 clamped in the clamping groove 3211 to make the liquid in the indwelling needle 60 vibrate. Specifically, the vibrator 322 and the clamping groove 3211 are arranged on the two sides of the clamping block 321 away from each other, and the vibration waves generated by the vibrator 322 are transmitted along the radial direction of the clamping groove 3211 so that the vibration waves can be transmitted along the radial direction of the indwelling needle 60.

[0059] Specifically, the vibrator 322 can be a piezoelectric ceramic, and the controller 311 controls the piezoelectric ceramic to generate ultrasonic waves, which are transmitted to the indwelling needle 60 through the clamping block 321, so that the liquid in the indwelling needle 60 generates ultrasonic oscillation in the radial direction thereof, and the residual medicine and protein adhered to the inner wall of the indwelling needle 60 fall off under the action of the radial ultrasonic oscillation and flow out of the output end of the indwelling needle 60 along with the liquid, so as to achieve the purpose of cleaning the residues in the indwelling needle 60.

[0060] The vibrator 322 can also be other forms of vibration output members, such as a pneumatic vibrator 322, an electromagnetic vibrator 322, etc. The present application does not limit the specific type of the vibrator 322 as long as it can output vibration waves of a certain frequency. The vibration member 312 can also be a pneumatic vibrator 322, an electromagnetic vibrator 322, etc. When the vibration member 312 is a pneumatic vibrator 322, an electromagnetic vibrator 322 or other types of vibrators 322, the output end of the vibration member 312 is connected to the end of the piston 12 away from the output end of the syringe 10, so as to ensure that the vibration waves output by the vibration member 312 can be transmitted to the piston 12.

[0061] In some embodiments of the present application, the second vibration assembly 32 further comprises a spring 323, and the clamping block 321 is fixed to the bottom plate 41 of the support assembly 40 through the spring 323, i.e. the two ends of the spring 323 are connected to the clamping block 321 and the bottom plate 41 respectively, and the deformation direction of the spring 323 is perpendicular to the top surface of the bottom plate 41, and the weight of the clamping block 321 and the vibrator 322 is supported by the spring 323. The spring 323 functions to fix the clamping block 321, i.e. to fix the indwelling needle 60 and the vibrator 322. In addition, the spring 323 has the function of elastic deformation, and is connected to the clamping block 321, i.e. indirectly connected to the vibrator 322. The spring 323 can amplify the vibration amplitude of the vibrator 322, so as to enhance the vibration effect of the indwelling needle 60 and improve the cleaning speed of the indwelling needle 60.

[0062] In some embodiments of the present application, the spring 323 is connected to the bottom plate 41 of the support assembly 40, and the clamping block 321 is located above the spring 323 along the height direction of the injection system 100 (as shown in the Figure 2 i.e. the clamping block 321 is supported above the bottom plate 41 by the spring 323, and the weight of the clamping block 321 presses on the spring 323. When the vibrator 323 in the clamping block 321 vibrates, the clamping block 321 transmits the vibration to the spring 323.

[0063] In some embodiments of the present application, the driving mechanism 20 comprises a driving motor 21, a lead screw 22 and a sliding block 23. Specifically, the driving motor 21 is arranged on the bottom plate 41 through a motor support seat 26, and the driving motor 21 and the motor support seat 26 are both located in the accommodating space 401. The driving motor 21 is drivingly connected to the lead screw 22 to drive the lead screw 22 to rotate. The sliding block 23 is sleeved on the lead screw 22, and the sliding block 23 is formed with an internal thread matched with the lead screw 22. The driving motor 21 drives the lead screw 22 to rotate, and the sliding block 23 moves on the lead screw 22 to drive the piston 12 of the syringe 10 to move. The lead screw 22 is provided with a bearing 27 at an end away from the driving motor 21, and the bearing 27 is connected to the bottom plate 41 through a bearing support seat. The bearing 27 supports the end of the lead screw 22 away from the driving motor 21. The bearing support seat can also be connected to the side plate 42 of the support assembly 40 to improve the firmness of the bearing support seat and provide a more stable working environment for the sliding block 23. In some embodiments of the present application, the driving mechanism 20 further comprises a connecting piece 24. A first end of the connecting piece 24 is connected to the sliding block 23 in the accommodating space 401, and a second end of the connecting piece 24 extends to the outside of the accommodating space 401 through a window 431 of the cover plate 43 and is connected to the piston 12 of the syringe 10. Specifically, the connecting piece 24 is connected to an end of the piston 12 away from the output end of the syringe 10, so that the connecting piece 24 can drive the piston 12 to move without being limited by the injection needle tube.

[0064] Specifically, the second end of the connecting piece 24 is provided with a connecting portion 241, and the connecting portion 241 is formed with a connecting groove 242. An end of the piston 12 away from the output end of the syringe 10 is provided with a finger rest portion 122. The finger rest portion 122 is circular in cross section along the moving direction of the piston 12. Part of the finger rest portion 122 is located in the connecting groove 242, and the connecting groove 242 limits the finger rest portion 122. When the driving motor 21 drives the sliding block 23 to move through the lead screw 22, the sliding block 23 drives the connecting piece 24 to move. The connecting piece 24 drives the finger rest portion 122 to move through the connecting groove 242 of the connecting portion 241, thereby driving the piston 12.

[0065] Further, the finger rest portion 122 is connected with the vibration piece 312, and the vibration piece 312 is located in the connecting groove 242. Specifically, the vibration piece 312 can be located at one end of the finger rest portion 122 away from the syringe barrel 11 of the injection device 10, or the vibration piece 312 can be located at one end of the finger rest portion 122 towards the syringe barrel 11. Since one end of the finger rest portion 122 towards the syringe barrel 11 is connected with the piston rod 121 of the piston 12, in order to facilitate the installation of the vibration piece 312, the vibration piece 312 is arranged at one end of the finger rest portion 122 away from the syringe barrel 11. A gasket 25 is arranged between one end of the finger rest portion 122 towards the syringe barrel 11 and the side wall of the connecting groove 242, so that the finger rest portion 122 and the vibration piece 312 do not shake in the connecting groove 242. That is, in the advancing direction of the piston 12, the vibration piece 312, the finger rest portion 122 and the gasket 25 are sequentially arranged in the connecting groove 242. Specifically, the gasket 25 can be of sponge material, rubber material or other material with certain elastic deformation capability. It should be noted that the advancing direction of the piston 12 refers to the direction in which the liquid in the injection device 10 is pushed out of the output end of the injection device 10, that is, the direction in which the piston 12 approaches the output end of the injection device 10.

[0066] The connecting groove 242 is provided with an opening 243 at one end close to the syringe barrel 11, the finger rest portion 122 is located in the connecting groove 242, and part of the piston rod 121 is connected with the finger rest portion 122 in the connecting groove 242 through the opening 243. The opening 243 can make the part of the finger rest portion 122 inserted into the connecting groove 242 more, so as to fix the finger rest portion 122.

[0067] In order to fix the injection device 10, the support assembly 40 is provided with a support piece 44. Specifically, the support piece 44 is arranged on the side of the cover plate 43 away from the containing space 401, and the support piece 44 is formed with a support groove (not shown in the figure), the outer wall of the syringe barrel 11 of the injection device 10 is matched with the shape of the support groove, and the support groove fixes and limits the syringe barrel 11. Further, one end of the syringe barrel 11 away from the output end of the injection device 10 is provided with a baffle 111 arranged in a ring shape along the outer wall of the syringe barrel 11, and the support piece 44 is formed with a limiting groove (not shown in the figure), the depth of the limiting groove is greater than the depth of the support groove, when the syringe barrel 11 is located in the support groove, the support groove includes most of the syringe barrel 11 along the circumference of the syringe barrel 11, and the baffle 111 is located in the limiting groove, that is, the circumference and the radial direction of the syringe barrel 11 are limited by the two parts of the limiting groove and the support groove, so as to ensure the stability of the injection device 10 in operation.

[0068] In some embodiments of the present application, the injection system 100 further comprises a battery 50, the battery 50 is connected to the bottom plate 41, and the top end of the battery 50 is provided with a controller 311, the battery 50 and the controller 311 are arranged outside the containing space 401.

[0069] The battery 50 is electrically connected to at least one of the controller 311, drive motor 21, and vibrator 322 to provide power to the controller 311, drive motor 21, and vibrator 322.

[0070] It should be noted that both the drive mechanism 20 and the syringe 10 are made of biosafety materials. Biosafety materials can be metallic materials, such as 304 stainless steel, or they can be polymeric materials, such as hydrogels, polyester materials, etc.

[0071] The working principle of the injection system 100 of the present invention:

[0072] First, the drive mechanism 20 drives the connecting piece 24 to its maximum stroke (e.g., ...). Figure 7 (As shown), to facilitate the installation of syringe 10:

[0073] Second, the indwelling needle 60 is installed on the second vibration assembly 32;

[0074] Third, the syringe 10 filled with liquid is installed on the support 44, and the piston 12 of the syringe 10 is connected to the connector 24 at the end opposite to the output end, and the syringe 10 is connected to the indwelling needle 60.

[0075] Fourth, activate the vibration mechanism 30 to generate radial vibration waves in the liquid inside the indwelling needle 60, and at the same time, generate radial vibration waves in the liquid inside the syringe 10.

[0076] Fifth, activate the drive mechanism 20 to control the piston 12 to move toward the output end of the syringe 10, pushing the liquid in the syringe 10 into the indwelling needle 60 (e.g., Figure 8 As shown), so that the liquid in the indwelling needle 60 can clean the residue in the indwelling needle 60 under the combined action of axial vibration wave and radial vibration wave.

[0077] Sixth, after the injection is completed (such as...) Figure 9 As shown), syringe 10 issues an alarm and is removed.

[0078] Furthermore, the drive mechanism 20 drives the piston 12 to advance a preset amount of liquid, waits for a preset time, and then the drive mechanism 20 continues to drive the piston 12 to advance the same preset amount of liquid, and then continues to wait for the same amount of time, repeating the above process until the liquid in the syringe 10 is completely injected and pushed into the indwelling needle 60.

[0079] Specifically, the preset liquid amount ranges from 0.1ml to 1ml, and other preset liquid amounts such as 0.05ml, 0.02ml, 2ml, etc. can also be set according to the size of the indwelling needle 60. The time range can be 0.2s to 1s, and other preset times such as 0.05s, 0.1s, 2s, 5s, etc. can also be set according to actual conditions.

[0080] The second aspect of the present application provides an injection system 1000, which comprises the indwelling needle 60 and the injection system 100 according to any one of the above embodiments.

[0081] Specifically, the input end of the indwelling needle 60 is connected with the output end of the syringe 10 of the injection system 100, the vibration mechanism 30 can transmit axial vibration waves to the end of the syringe 10 away from the indwelling needle 60, at the same time, the vibration mechanism 30 can clamp the middle part of the indwelling needle 60 to fix the indwelling needle 60, and at the same time, the vibration mechanism 30 can transmit radial vibration waves to the indwelling needle 60, so that the liquid in the indwelling needle 60 is vibrated by the radial vibration waves and the axial vibration waves, thereby avoiding the accumulation of liquid medicine on the inner wall of the indwelling needle 60, and ensuring that the medicine can be smoothly output from the indwelling needle 60.

[0082] It should be noted that the indwelling needle 60 is a prior art, and the structure of the indwelling needle 60 will not be described again in this application.

[0083] It can be understood that the above embodiments are only exemplary embodiments adopted for the purpose of illustrating the principles of the present disclosure, but the present disclosure is not limited thereto. Various modifications and improvements can be made by those of ordinary skill in the art without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also considered to be within the protection scope of the present disclosure.

Claims

1. An injection system, characterized in that, The injection system includes: Indwelling needle; A syringe, the output end of which is connected to the input end of the indwelling needle; A drive mechanism, which is connected to the syringe, to push the syringe to inject liquid into the indwelling needle; A vibration mechanism, comprising: a first vibration component and a second vibration component, wherein the first vibration component contacts the syringe and is used to transmit vibration waves to the syringe; and the second vibration component is disposed near the output end of the syringe and is used to contact the indwelling needle and transmit vibration waves to the indwelling needle. The first vibration component includes: Controller; A vibrating element is provided, the controller is electrically connected to the vibrating element, the vibrating element is disposed on the piston of the syringe, and the vibrating element is located at the end of the piston away from the output end of the syringe; The vibrating element is made of piezoelectric ceramic, and the vibration frequency range of the piezoelectric ceramic is 20Hz~3000Hz. Depending on the residue in the indwelling needle, the controller controls the piezoelectric ceramic to generate different frequencies to clean the particles of different sizes remaining in the indwelling needle.

2. The injection system according to claim 1, characterized in that, The injection system further includes a support assembly forming a receiving space with a window, a drive mechanism extending from the receiving space to the outside of the receiving space, a syringe supported on the support assembly, the syringe located on one side of the window of the receiving space, and the controller and the second vibration assembly both located on the support assembly and outside the receiving space.

3. The injection system according to claim 2, characterized in that, The drive mechanism includes: Drive motor; The lead screw is driven by the drive motor connected to the lead screw; A slider, which is sleeved on the lead screw; A connector that connects the slider and the piston, the connector extending from the receiving space to the outside of the receiving space, and the connector being adapted to the window.

4. The injection system according to claim 3, characterized in that, The connector includes a connecting portion with a connecting groove formed thereon. A portion of the piston's finger support is located within the connecting groove, and the vibrating element is connected to the finger support and located within the connecting groove.

5. The injection system according to claim 4, characterized in that, A gasket is also provided in the connecting groove. Along the advancement direction of the syringe, the vibrating element, the finger support and the gasket are arranged in sequence in the connecting groove.

6. The injection system according to claim 2, characterized in that, The second vibration component includes: A clamping block is provided near the output end of the syringe, and the clamping block is provided with a clamping groove for clamping the indwelling needle; A vibrator, which is embedded in the clamping block.

7. The injection system according to claim 6, characterized in that, The second vibration component also includes: A spring that connects the clamping block to the support assembly.

8. The injection system according to claim 7, characterized in that, The spring is connected to the base plate of the support assembly, and the clamping block is located above the spring along the height direction of the injection system.

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