Injection device

Abstract

The present application relates to the field of injection device, provide a kind of injection device, including device body, the device body includes injection part, injection assembly and driving component;The injection part is provided with ultrasonic probe;The injection assembly has needle and the liquid storage space of communication needle, and the needle is close to the injection part setting;The driving component is used to drive the injection assembly and is used to drive the needle relative to the injection part telescopic activity through the needle and injects.This injection device provided by the present application is beneficial to the automation of injection operation and improves injection precision.

Description

Technical Field

[0001] This application relates to the field of injection device technology, and more particularly to an injection device. Background Technology

[0002] Injection is a medical procedure that involves injecting liquids or gases into the human body using medical devices such as syringes. Injection methods include intradermal, subcutaneous, intramuscular, venous, and arterial injections. Cosmetic injections, in particular, are non-surgical cosmetic methods that correct skin defects by injecting biological or synthetic materials locally into the face.

[0003] Traditional injection procedures involve manual insertion of the syringe needle into the body tissue at a specific depth, followed by pushing the syringe plunger at a specific speed to inject the medication. Manual operation is inefficient, and without visual guidance, it is easy for the needle to accidentally enter dangerous areas such as blood vessels or nerves, leading to injuries such as embolism, infection, and tissue necrosis.

[0004] Thus, the success of the injection depends on the operator's skill and experience, making it difficult to guarantee the safety and effectiveness of the injection. Therefore, there is an urgent need to improve the automation and precision of injection procedures. Summary of the Invention

[0005] The purpose of this invention is to overcome at least one of the technical problems in the prior art described above, and to provide an injection device that facilitates the automation of injection operations.

[0006] The first aspect of the technical solution of the present invention is: An injection device includes a device body, the device body comprising: The injection section is equipped with an ultrasonic probe; An injection assembly having a needle and a liquid reservoir communicating with the needle, wherein the needle is disposed close to the injection portion; A driving component, the driving component being used to drive the injection assembly to inject through the needle and / or to drive the needle to extend and retract relative to the injection portion.

[0007] In some embodiments, the device body is provided with an ultrasound imaging module, the ultrasound imaging module is communicatively connected to a screen disposed on the outside of the device body, and the ultrasound imaging module is communicatively connected to the ultrasound probe.

[0008] In some embodiments, the ultrasonic probe is an array probe; The ultrasonic probe is linear and is positioned on one side of the injection portion; Alternatively, the ultrasound probe may include a first linear probe and a second linear probe spaced apart on opposite sides of the injection portion; Alternatively, the ultrasonic probe may be disposed at the end of the injection unit, and the ultrasonic probe may have an opening through which the needle passes.

[0009] In some embodiments, the drive component includes a first push mechanism, which is adjustablely and movably connected to a main mounting bracket; A second pushing mechanism is fixedly connected to the main mounting frame, and the second pushing mechanism is connected to a pushing component; The injection assembly is connected to the main mounting bracket, and the second pushing mechanism drives the injection assembly to inject through the needle via the pushing member.

[0010] In some embodiments, the device body includes a first housing, the first pushing mechanism includes a first motor fixedly connected to the first housing; the shaft of the first motor is connected to a first lead screw extending toward a first direction, the first lead screw being threadedly connected to the main mounting bracket; the first housing has a guide structure for restricting the main mounting bracket from rotating circumferentially along the first lead screw; The injection section is located at one end of the device body closer to the first direction.

[0011] In some embodiments, the main mounting bracket includes a mounting plate, to which the first lead screw is threaded; the mounting plate is connected to a guide rod extending toward the first direction, and the pusher is slidably disposed on the guide rod; The second pushing mechanism includes a second motor fixedly connected to the mounting plate, and the shaft of the second motor is connected to a second lead screw extending toward the first direction; the second lead screw is threadedly connected to the pushing member.

[0012] In some embodiments, both the first motor and the second motor are stepper motors.

[0013] In some embodiments, the injection assembly is detachably connected to the main mounting bracket; The injection assembly includes a syringe, which has a push rod, a barrel, and a needle. The barrel forms the liquid storage space, the push rod is slidably inserted into the barrel, and the needle is fixedly inserted through the barrel. The main mounting frame includes a mounting plate, the mounting plate is fixedly connected to a frame body, and the frame body is provided with a quick-release slot, which has a mounting groove for the syringe to be inserted into. When the syringe is embedded in the mounting groove, the pusher is connected to the push rod, and the syringe body is fixedly connected to the quick-release slot.

[0014] In some embodiments, the device body includes a first housing and a second housing detachably disposed on the first housing, the first housing and the second housing being clamped together to form an inner cavity for accommodating the drive component and the injection assembly.

[0015] In some embodiments, the device body includes a main control module that is communicatively connected to the drive component; The outer side of the device body is provided with a button for operating the main control module, and / or the main control module is provided with a wireless component for communication connection to an external terminal.

[0016] The injection device provided by this invention allows the operator to guide and position the needle based on real-time ultrasound imaging information acquired by an ultrasound probe when it is necessary to insert a needle from outside the skin into a specific human tissue site. This ensures that the specific skin insertion point of the needle accurately corresponds to the specific human tissue site, thereby guaranteeing that the needle can be accurately inserted into the specific human tissue site after piercing the skin. In other words, the solution of this application facilitates needle guidance and positioning when it is necessary to insert a needle into a specific human tissue site after piercing the skin. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a first-view perspective three-dimensional schematic diagram of the injection device provided in the first embodiment of the present invention; Figure 2 This is a second-view perspective perspective view of the injection device provided in the first embodiment of the present invention; Figure 3 This is a three-dimensional schematic diagram of the injection assembly and driving component provided in the first embodiment of the present invention; Figure 4 This is an exploded view of the injection assembly and driving component provided in the first embodiment of the present invention; Figure 5 This is a perspective view of the injection device provided in the first embodiment of the present invention after the second housing has been disassembled from the first housing; Figure 6 This is a bottom view of the injection device provided in the first embodiment of the present invention; Figure 7 This is a bottom view of the injection device provided in the second embodiment of the present invention; Figure 8 This is a bottom view of the injection device provided in the third embodiment of the present invention.

[0019] Component descriptions for this application: 100 - Device body; 110 - First housing; 120 - Second housing; 130 - Injection section; 131 - Ultrasonic probe; 140 - Screen; 150 - Button; 200 - Injection assembly; 210 - Needle; 220 - Push rod; 230 - Bottle body; 231 - Extension; 300-Drive component; 310-First pushing mechanism; 311-Main mounting bracket; 3111-Mounting plate; 3112-Frame; 3113-Quick-install slot; 3114-Mounting slot; 312-First motor; 313-First lead screw; 320 - Second pushing mechanism; 321 - Pushing component; 322 - Second motor; 323 - Second lead screw; 324 - Guide rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] It should be noted that the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to direct setup or connection, or indirect setup or connection through centered components or centered structures.

[0022] Furthermore, in embodiments of this invention, terms such as "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or in a conventional placement or usage state. These terms are merely for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the structures, features, devices, or elements referred to must have a specific orientation or positional relationship, nor that they must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / embodiments in this invention will not be described separately.

[0024] like Figures 1 to 6As shown, the first embodiment of the present invention provides an injection device, including a device body 100, the device body 100 including an injection section 130, an injection assembly 200 and a driving component 300; the injection section 130 is used to contact the human body, and the injection section 130 is provided with an ultrasound probe 131; the injection assembly 200 has a needle 210 and a liquid storage space communicating with the needle 210, and the needle 210 is disposed close to the injection section 130; the driving component 300 is used to drive the injection assembly 200 to inject through the needle 210 and to drive the needle 210 to extend and retract relative to the injection section 130.

[0025] In practical applications, the operator can place the injection unit 130 against a specific skin location (exemplarily, human skin), and then insert the needle 210 into a specific human tissue location by piercing the skin at the specific skin location (corresponding to the needle 210).

[0026] In the injection device of this application, since an ultrasound probe 131 is integrated on the injection part 130 that directly contacts the human body, when the operator places the injection part 130 of the injection device against the skin and adjusts the position of the injection part 130 on the skin, the operator can obtain ultrasound imaging information of the subcutaneous human tissue in real time through the ultrasound probe 131. Furthermore, when the operator adjusts the position of the injection part 130, the operator can simultaneously guide and position the injection part 130 according to the ultrasound imaging information obtained in real time by the ultrasound probe 131 until the injection part 130 can move on the skin to the position corresponding to the specific human tissue part.

[0027] In this application, since the needle 210 of the injection assembly 200 is positioned close to the injection section 130, the position where the needle 210 pierces the skin is related to the position where the injection section 130 contacts the skin. Furthermore, when adjusting the position of the injection section 130 on the skin, the expected piercing position of the needle 210 is also adjusted synchronously. When it is necessary to insert the needle 210 from outside the skin into a specific human tissue site, the operator can guide and position the injection section 130 and the needle 210 based on the real-time ultrasound imaging information acquired by the ultrasound probe 131, ensuring that the piercing position of the needle 210 accurately corresponds to the specific human tissue site, thereby ensuring that the needle 210 can be accurately inserted into the specific human tissue site after piercing the skin.

[0028] Thus, when it is necessary to insert the needle 210 into a specific human tissue site by piercing the skin, the solution of this application is beneficial for guiding and positioning the needle 210.

[0029] Understandably, since this application can acquire ultrasound imaging information of subcutaneous human tissue in real time through ultrasound probe 131, the operator can also observe the insertion depth of needle 210 in real time during the process of needle 210 being inserted into subcutaneous human tissue, which helps to prevent over-puncture and improves safety.

[0030] Furthermore, this application also includes a driving component 300 capable of extending and retracting the needle 210 relative to the injection section 130; the driving component 300 drives the needle 210 to extend relative to the injection section 130, thereby driving the needle 210 to pierce the skin and insert into human tissue. Thus, this application can utilize the mechanical means of the driving component 300 to replace the manual means of the prior art in controlling the insertion action and depth of the needle 210, which is beneficial for precise control of the insertion action and depth of the needle 210.

[0031] Furthermore, the driving component 300 in this application can also drive the injection assembly 200 to perform injection (i.e., drive the injection assembly 200 to inject the liquid stored in the reservoir through the needle 210). Thus, this application uses the mechanical method of the driving component 300 to replace the traditional manual method of driving the injection assembly 200 to perform injection in the prior art, which is beneficial for precise control of the injection process of the injection assembly 200.

[0032] Specifically, the ultrasound probe 131 emits acoustic signals to the human body and collects acoustic reflection signals (i.e., ultrasound imaging information); the setting of the ultrasound probe 131 emitting acoustic signals and collecting acoustic reflection signals is a conventional technical means in the art, and the relevant technical details are not elaborated here.

[0033] Specifically, in this application, the device body 100 is provided with an ultrasound imaging module, the ultrasound imaging module is communicatively connected to a screen 140 disposed on the outside of the device body 100, and the ultrasound imaging module is communicatively connected to the ultrasound probe 131.

[0034] In practical applications, after the ultrasound probe 131 emits acoustic signals to the human body and collects acoustic reflection signals, the ultrasound probe 131 can transmit the acoustic reflection signals to the ultrasound imaging module via a communication line. The ultrasound imaging module can then convert the acoustic reflection signals into ultrasound imaging images and output these images to the screen 140 on the outside of the device body 100 for display, allowing the operator to observe and adjust the position of the injection unit 130 in real time. It is understood that converting acoustic reflection signals into ultrasound imaging images is a conventional technique in the field of ultrasound imaging, and this application will not elaborate on it further.

[0035] Specifically, the ultrasound probe 131 can be an array probe. The arrangement of the ultrasound probe 131 in an array probe is also a conventional technique in the art (for example, array probes have been widely used in B-mode ultrasound examinations), and will not be described in detail here.

[0036] Please see Figure 6 In this embodiment, the ultrasonic probe 131 may be linear and disposed on one side of the injection portion 130.

[0037] In practical applications, as the needle 210 extends out of the injection section 130, the needle 210 and the ultrasonic probe 131 remain close together, and the straight-line distance between them remains constant. Preferably, the direction in which the needle 210 extends out of the injection section 130 is perpendicular to the linear extension direction of the ultrasonic probe 131.

[0038] Alternatively, regarding the ultrasound probe 131, in some other embodiments, the ultrasound probe 131 may include a first linear probe and a second linear probe spaced apart on opposite sides of the injection section 130 (i.e., the needle 210).

[0039] In the embodiment where the ultrasound probe 131 includes a first linear probe and a second linear probe spaced apart on opposite sides of the injection section 130, optionally, please refer to... Figure 7 In a second embodiment, the linear surfaces of the first and second linear probes can be arranged to overlap in the extending direction, that is, the first and second linear probes extend to opposite sides of the needle tip 210, respectively. This facilitates the integration of two ultrasonic reflection signals about a single cross-section acquired by the first and second linear probes into a single ultrasonic imaging image based on that cross-section.

[0040] Alternatively, see Figure 8 In a third embodiment, the ultrasonic probe 131 is disposed at the end of the injection part 130, and the ultrasonic probe 131 is provided with an opening for the needle 210 to pass through.

[0041] Specifically, please refer to Figure 3 and Figure 4 In some embodiments, the driving component 300 includes a first pushing mechanism 310, which is movably and adjustablely connected to a main mounting frame 311; a second pushing mechanism 320 is fixedly connected to the main mounting frame 311, which is movably and adjustablely connected to a pushing member 321; the injection assembly 200 is connected to the main mounting frame 311, and the second pushing mechanism 320 drives the injection assembly 200 to inject through the needle 210 via the pushing member 321.

[0042] In practical applications, the injection assembly 200 and its needle 210 can be kept relatively fixed to the main mounting frame 311. When the first pushing mechanism 310 drives the main mounting frame 311 to move, the main mounting frame 311 can synchronously drive the injection assembly 200 and its needle 210 to move, thereby enabling the needle 210 to move axially forward or backward relative to the injection section 130. Based on this, the second pushing mechanism 320, which is fixedly connected to the main mounting frame 311, can drive the pushing member 321 to move, thereby enabling the pushing member 321 to move relative to the injection assembly 200 and drive the injection assembly 200 to perform a pushing action, so that the injection assembly 200 injects the drug solution stored in the reservoir through the needle 210.

[0043] Thus, the driving power sources in the drive component 300 that control the insertion depth of the needle 210 and the injection speed (and dosage) of the injection assembly 200 can be independent of each other, do not interfere with each other, and do not need to be coordinated with each other, which facilitates the design and control of the drive component 300.

[0044] Specifically, in some embodiments, the device body 100 includes a first housing 110, and the first pushing mechanism 310 includes a first motor 312 fixedly connected to the first housing 110; the shaft of the first motor 312 is connected to a first lead screw 313 extending toward a first direction A, and the first lead screw 313 is threadedly connected to the main mounting bracket 311; the first housing 110 has a guide structure for restricting the main mounting bracket 311 from rotating circumferentially along the first lead screw 313; the injection part 130 is located at one end of the device body 100 near the first direction A.

[0045] Specifically, the first housing 110 can be a fixed structure on the device body 100, and the first motor 312 is fixedly connected to the first housing 110, so the first motor 312 is also a fixed structure on the device body 100. When the first motor 312 starts and rotates, the shaft of the first motor 312 drives the first lead screw 313 to rotate. At this time, since the guide structure on the first housing 110 restricts the circumferential rotation of the main mounting bracket 311, the threaded engagement between the first lead screw 313 and the main mounting bracket 311 can convert the rotational motion of the first lead screw 313 into a linear reciprocating motion of the main mounting bracket 311 along the axial direction (i.e., the first direction A) of the first lead screw 313, thereby allowing the main mounting bracket 311 to move relatively closer to or further away from the injection section 130. When the injection assembly 200 is provided on the main mounting bracket 311, the main mounting bracket 311 can drive the needle 210 of the injection assembly 200 to extend and retract relative to the injection section 130. For example, when the main mounting bracket 311 moves along the first direction A, the main mounting bracket 311 drives the injection assembly 200 to move along the first direction A, so that the needle 210 of the injection assembly 200 can extend relative to the injection part 130.

[0046] In this application, by adopting a screw thread transmission structure composed of a first motor 312, a first lead screw 313, a main mounting bracket 311 and a guide structure, the mechanical drive control of the needle insertion depth of the needle 210 can be achieved, which helps to reduce the problem of needle insertion being too deep or too shallow due to hand tremors or uneven force in traditional manual injection.

[0047] Understandably, the first motor 312 can be a stepper motor.

[0048] It is understood that the injection section 130 is located at one end of the device body 100 near the first direction A, that is, the injection section 130 is the end of the device body 100 in the first direction A (or it can be regarded as the bottom of the device body 100). The first motor 312, the first lead screw 313, and the main mounting bracket 311 are located on the device body 100 away from the injection section 130 in the first direction A; on the device body 100, along the first direction A, the first motor 312, the first lead screw 313, the main mounting bracket 311, and the injection section 130 are arranged in sequence.

[0049] It is understood that the guide structure may be a guide rail groove extending along the first direction A on the first housing 110 (not shown in the figure), and the main mounting bracket 311 may be provided with a guide rail protrusion with a concave-convex matching guide rail groove (not shown in the figure).

[0050] Specifically, in some embodiments, the main mounting bracket 311 includes a mounting plate 3111, to which the first lead screw 313 is threadedly connected; a guide rod 324 extending in the first direction A is connected to the side of the mounting plate 3111 facing the first direction A, and the pusher 321 is slidably disposed on the guide rod 324; the second push mechanism 320 includes a second motor 322 fixedly connected to the mounting plate 3111, and a second lead screw 323 extending in the first direction A is connected to the shaft of the second motor 322; the second lead screw 323 is threadedly connected to the pusher 321. The second motor 322, the second lead screw 323, the pusher 321, and the guide rod 324 form a lead screw thread transmission structure, thereby allowing the pusher 321 to move relative to the main mounting bracket 311 (and the injection assembly 200 connected to the main mounting bracket 311).

[0051] More specifically, in practical applications, when the main mounting bracket 311 moves and drives the needle 210 of the injection assembly 200 to pierce the skin and be inserted into a specific human tissue site, when the second motor 322 starts and its shaft rotates, the shaft of the second motor 322 can drive the second lead screw 323 to rotate. At this time, since the guide rod 324 restricts the circumferential rotation of the pusher 321, the threaded engagement between the second lead screw 323 and the pusher 321 can convert the rotational motion of the second lead screw 323 into the linear reciprocating motion of the pusher 321 along the axial direction of the second lead screw 323 (i.e., the first direction A). Thus, the pusher 321 can drive the injection assembly 200 to perform injection. For example, when the pusher 321 moves along the first direction A, the pusher 321 drives the injection assembly 200 to perform injection.

[0052] In this application, by adopting a screw thread transmission structure consisting of a second motor 322, a second lead screw 323, a pusher 321 and a guide rod 324, mechanical control of the injection assembly 200 injection process can be realized, thereby facilitating the injection assembly 200 to inject at a constant speed and smoothly, which helps to reduce the problem of excessive instantaneous injection pressure caused by hand tremors or uneven force in traditional manual injection.

[0053] Understandably, the second motor 322 can be a stepper motor.

[0054] In some embodiments, the injection assembly 200 is detachably connected to the main mounting bracket 311. This detachable design of the injection assembly 200 facilitates its use as a single-use medical consumable; for example, when the needle 210 needs to be replaced, the entire injection assembly 200 can be replaced.

[0055] For more details, please refer to Figure 4 In this embodiment, the injection assembly 200 includes a syringe with a push rod 220, a barrel 230, and a needle 210. The barrel 230 forms the liquid storage space. The push rod 220 is slidably inserted into the barrel 230, and the needle 210 is fixedly inserted at the end of the barrel 230. That is, the injection assembly 200 in this embodiment can be a common standard syringe. When the injection assembly 200 needs to be installed in the device body 100, the syringe (after being filled with liquid) from an existing standard component can be directly installed and connected to the main mounting bracket 311 to form the injection assembly 200. Thus, the injection assembly 200 in this application does not require special design, which helps to reduce the production and assembly costs of this application.

[0056] Specifically, the mounting plate 3111 is fixedly connected to a frame 3112 extending in the first direction A on one side facing the mounting plate 3111; the frame 3112 is provided with a quick-release slot 3113, which has a mounting groove 3114 for inserting the syringe; when the syringe is inserted into the mounting groove 3114, the pusher 321 is connected to the push rod 220, and the syringe body 230 is fixedly connected to the quick-release slot 3113.

[0057] In practical applications, operators can directly insert the standard syringe (injection assembly 200) filled with medication into the mounting groove 3114 of the quick-release slot 3113, thus fixing the relative position of the syringe body 230 and the quick-release slot 3113. For example, the quick-release slot 3113 can be configured to clamp the outer periphery of the syringe body 230 through a structural clamp forming the mounting groove 3114.

[0058] Please see Figure 4 In this embodiment, the outer side of the end of the cylinder 230 away from the needle 210 has an extension 231 (a conventional design of standard syringe parts, usually used for manual use of the syringe to lift the cylinder 230 with the fingers of the user); when the syringe is inserted into the mounting groove 3114, the extension 231 can be interference-fitted and locked in the end of the quick-release groove 3113 facing away from the first direction A.

[0059] Alternatively, in some other possible embodiments, the quick-release slot 3113 may be provided with a laterally extending (i.e., extending circumferentially corresponding to the cylinder 230) snap-fit ​​groove; when the syringe is inserted into the mounting groove 3114, the extension 231 is inserted into the snap-fit ​​groove, thereby restricting the axial sliding of the syringe on the quick-release slot 3113.

[0060] Furthermore, when the syringe is embedded in the mounting groove 3114 and the quick-release groove 3113 is fixedly connected, the end of the push rod 220 can be simultaneously abutted against the side of the push member 321 facing the first direction A, thereby completing the transmission connection between the push member 321 and the push rod 220; when the push member 321 moves along the first direction A, the push member 321 can push the push rod 220 to move and compress the internal space of the syringe body 230, so that the syringe can inject.

[0061] Specifically, please refer to Figure 1 , Figure 2 and Figure 5 The device body 100 includes a first housing 110 and a second housing 120 detachably disposed on the first housing 110. The first housing 110 and the second housing 120 are sandwiched to form an inner cavity, which is used to accommodate the driving component 300 and the injection assembly 200.

[0062] By using a structure in which the first housing 110 and the second housing 120 are sandwiched together to form a closed inner cavity, the device body 100 can completely enclose the ultrasonic imaging module, the first motor 312, the first lead screw 313, the second motor 322, the second lead screw 323, and the injection assembly 200 within the inner cavity. In this way, the first housing 110 and the second housing 120 can effectively block external contaminants, thereby protecting the mechanical transmission structure and electronic components of the device body 100, extending the service life of the entire device, and also making the appearance of the device body 100 neat and beautiful.

[0063] The first housing 110 and the second housing 120 can be physically locked in a detachable manner through connectors such as snaps, screws, or buckles.

[0064] Please see Figure 5 The drive component 300 is located inside the first housing 110. When the first housing 110 and the second housing 120 are disassembled, the mounting groove 3114 on the quick-release slot 3113 located inside the first housing 110 is exposed to the outside, which makes it convenient for the operator to install the injection assembly 200.

[0065] Specifically, the device body 100 includes a main control module that is communicatively connected to the drive component 300; a button 150 for operating the main control module is provided on the outer side of the device body 100; and optionally, the main control module may also be provided with a wireless component for communicatively connecting to an external terminal.

[0066] In practical applications, the main control module receives physical trigger signals via button 150 or remote digital commands from external terminals via wireless components, thereby precisely controlling the speed, direction, and pulse steps of the first motor 312 and the second motor 322. By integrating button 150 and wireless components, the device body 100 can provide operators with diversified interactive control entry points, thereby achieving the technical effect of optimizing the human-machine interaction experience.

[0067] In one specific embodiment of the injection device of this application, the operation method of the injection device includes the following steps: S10: Fill the liquid storage space with liquid. Specifically, inject a measured amount of drug solution into the syringe barrel 230 to complete the initial drug solution preparation.

[0068] S20: Couple the injection assembly 200 and the drive component 300. Specifically, the syringe is embedded in the mounting groove 3114 of the quick-release slot 3113, so that the syringe body 230 is fixedly connected to the quick-release slot 3113, and then fixedly connected to the main mounting bracket 311; and the tail end of the push rod 220 is connected to the pusher 321 in a transmission connection; ensuring that when the pusher 321 moves along the first direction A, the push rod 220 will be pushed.

[0069] S30: Control the ultrasound imaging module to perform real-time ultrasound imaging of subcutaneous human tissue through the ultrasound probe 131, acquire ultrasound imaging images of the subcutaneous human tissue, and display the ultrasound imaging images on the screen 140. For example, in this process, the ultrasound imaging image can display the dermis, fat layer, and bone of a cross-section of the subcutaneous human tissue.

[0070] S40: Adjust the position of the injection unit 130 on the skin according to the ultrasound imaging image. Specifically, the operator can move the injection unit 130 of the device body 100 on the skin until the optimal needle insertion point is selected.

[0071] S50: By using the button 150 on the outside of the device body 100, or by using an external terminal connected to the device body 100 (main control module) via communication, the relevant parameters of the needle 210 insertion depth, injection speed and injection dose for this injection operation can be preset in the main control module.

[0072] S60: Based on the set parameters of needle 210 insertion depth, injection speed, and injection dosage, the drive component 300 is controlled to drive the injection assembly 200 to perform injection. For example, after the above-mentioned preparations are completed, the drive component 300 can be started by pressing button 150; after pressing button 150, the main control module sequentially and collaboratively controls the first motor 312 and the second motor 322 to operate according to the relevant parameters set in step S50, driving the needle 210 to accurately advance to the target depth and complete the drug injection at a set constant speed.

[0073] It is understandable that the device body 100 may also be equipped with a power supply module to supply power to components such as the drive component 300 and the ultrasonic imaging module.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An injection device, characterized in that, Includes a device body, the device body comprising: The injection section is equipped with an ultrasonic probe; An injection assembly having a needle and a liquid reservoir communicating with the needle, wherein the needle is disposed close to the injection portion; A driving component, the driving component being used to drive the injection assembly to inject through the needle and / or to drive the needle to extend and retract relative to the injection portion.

2. The injection device as claimed in claim 1, characterized in that, The device body is equipped with an ultrasound imaging module, which is communicatively connected to a screen located on the outside of the device body, and is also communicatively connected to the ultrasound probe.

3. The injection device as described in claim 1, characterized in that, The ultrasonic probe is an array probe; The ultrasonic probe is linear and is positioned on one side of the injection portion; Alternatively, the ultrasound probe may include a first linear probe and a second linear probe spaced apart on opposite sides of the injection portion; Alternatively, the ultrasonic probe may be disposed at the end of the injection unit, and the ultrasonic probe may have an opening through which the needle passes.

4. The injection device as claimed in claim 1, characterized in that, The driving component includes a first pushing mechanism, which is movably and adjustablely connected to a main mounting bracket; A second pushing mechanism is fixedly connected to the main mounting frame, and the second pushing mechanism is connected to a pushing component; The injection assembly is connected to the main mounting bracket, and the second pushing mechanism drives the injection assembly to inject through the needle via the pushing member.

5. The injection device as described in claim 4, characterized in that, The device body includes a first housing, and the first pushing mechanism includes a first motor fixedly connected to the first housing; the rotating shaft of the first motor is connected to a first lead screw extending in a first direction, and the first lead screw is threadedly connected to the main mounting bracket; the first housing has a guide structure for restricting the main mounting bracket from rotating circumferentially along the first lead screw; The injection section is located at one end of the device body closer to the first direction.

6. The injection device as described in claim 5, characterized in that, The main mounting bracket includes a mounting plate, and the first lead screw is threadedly connected to the mounting plate; the mounting plate is connected to a guide rod extending toward the first direction, and the pusher is slidably disposed on the guide rod; The second pushing mechanism includes a second motor fixedly connected to the mounting plate, and the shaft of the second motor is connected to a second lead screw extending toward the first direction; the second lead screw is threadedly connected to the pushing member.

7. The injection device as claimed in claim 6, characterized in that, Both the first motor and the second motor are stepper motors.

8. The injection device according to any one of claims 4-7, characterized in that, The injection assembly is detachably connected to the main mounting bracket; The injection assembly includes a syringe, which has a push rod, a barrel, and a needle. The barrel forms the liquid storage space, the push rod is slidably inserted into the barrel, and the needle is fixedly inserted through the barrel. The main mounting frame includes a mounting plate, the mounting plate is fixedly connected to a frame body, and the frame body is provided with a quick-release slot, which has a mounting groove for the syringe to be inserted into. When the syringe is embedded in the mounting groove, the pusher is connected to the push rod, and the syringe body is fixedly connected to the quick-release slot.

9. The injection device according to any one of claims 1-7, characterized in that, The device body includes a first housing and a second housing detachably disposed on the first housing. The first housing and the second housing are sandwiched together to form an inner cavity, which is used to accommodate the drive component and the injection assembly.

10. The injection device according to any one of claims 1-7, characterized in that, The device body includes a main control module that is connected to the drive component in communication. The outer side of the device body is provided with a button for operating the main control module, and / or the main control module is provided with a wireless component for communication connection to an external terminal.

Images