Injection device for plastic and aesthetic surgery

By setting graduation lines and a sliding abutment block on the syringe, combined with a telescopic device and a locking mechanism, the problem of precise injection volume control in existing devices is solved, achieving precise control of injection volume and automatic stop function, thus improving operational efficiency.

CN223641124UActive Publication Date: 2025-12-09THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202422815400.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-12-09
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

Existing cosmetic and plastic surgery injection devices are difficult to precisely control the injection volume per session, and the operation is complicated, which can easily lead to waste or insufficient medication.

Method used

By setting graduations and a sliding stop block on the syringe, combined with a telescopic device and a locking mechanism, precise control of the injection volume can be achieved. It is also equipped with a load sensor and a controller to automatically stop the injection, ensuring that the injection volume reaches the preset value.

Benefits of technology

It improves the precision of injection volume control, reduces drug waste, lowers the workload of doctors, and increases work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection device for cosmetic and plastic surgery, belongs to the technical field of cosmetic and plastic surgery, and can improve the control accuracy of injection amount. Comprising a grab handle, an injector, a telescopic device, a connecting rod, an abutting rod, an abutting block and a locking piece, a containing groove is formed in the grab handle, and the containing groove extends in the first direction; the injector is fixedly arranged in the containing groove, and a through hole for avoiding a needle head of the injector is formed in the grab handle; the injector, the telescopic rod of the telescopic device and the abutting rod extend in the first direction, and scale marks are arranged on a cylinder body of the injector; the telescopic device is arranged in the containing groove, and a telescopic rod of the telescopic device is fixedly connected with a piston rod of the injector. The connecting rod extends in a second direction and is fixedly connected with a piston rod of the injector, and the second direction is perpendicular to the first direction; the abutting rod is fixedly connected with the connecting rod; the abutting block is slidably arranged on the grab handle in the first direction; the locking piece is used for locking the position of the abutting block.
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Description

Technical Field

[0001] This utility model relates to the field of cosmetic surgery technology, specifically an injection device for cosmetic surgery. Background Technology

[0002] With the continuous development of cosmetic surgery techniques, injection therapy, as a non-invasive skin rejuvenation method, has been widely used in various cosmetic procedures. These procedures include, but are not limited to, dermal fillers, facial contouring, and wrinkle removal. During these injections, doctors often need to flexibly control the dosage of medication for each injection based on the patient's specific condition and needs.

[0003] Patent CN209529826U discloses a novel injection device for cosmetic and plastic surgery, which effectively solves the problem of high workload for operating doctors. However, its sealed shell design makes it difficult to observe the volume of the injected drug in the syringe, and the injection is performed by pushing the push plate with an electric telescopic rod, which makes it inconvenient to accurately control the injection volume per injection. Specifically, in actual operation, sometimes some drugs do not need to be injected in one injection, but need to be injected in multiple injections. Utility Model Content

[0004] This application provides an injection device for cosmetic and plastic surgery that can improve the precision of injection volume control.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] A cosmetic and plastic surgery injection device includes a handle, a syringe, a telescopic device, a connecting rod, an abutment rod, an abutment block, and a locking element. The handle has a receiving groove extending in a first direction. The syringe is fixedly disposed within the receiving groove, and the handle has a through hole to avoid the syringe needle. The syringe extends in the first direction, and its barrel has graduations. The telescopic device is disposed within the receiving groove, and its telescopic rod is fixedly connected to the syringe piston rod, extending in the first direction. The connecting rod extends in a second direction and is fixedly connected to the syringe piston rod, the second direction being perpendicular to the first direction. The abutment rod is fixedly connected to the connecting rod, extending in the first direction, with its end face near the needle flush with the syringe piston surface facing the needle. The abutment block is slidably disposed on the handle in the first direction. The locking element secures the position of the abutment block.

[0007] In this embodiment, the scale lines on the syringe barrel can be observed through the opening of the receiving groove. The sliding abutment block is adjusted to the scale line corresponding to the desired injection volume. Then, the position of the abutment block is locked by the locking member. The telescopic device is then activated, and the telescopic rod of the telescopic device pushes the piston rod and the abutment rod to move synchronously. When the abutment rod abuts against the abutment block, the preset injection volume has been reached. At this point, the telescopic device can be closed. The abutment rod and the abutment block cooperate to form a physical stop point, effectively ensuring that the injection volume will not be less than or exceed the preset value, thereby improving the accuracy of injection volume control.

[0008] In some possible implementations, the cosmetic surgery injection device also includes a load sensor and a controller. The load sensor is disposed on the surface of the abutment block facing the abutment rod and directly opposite it. The controller is communicatively connected to the telescopic device and the load sensor. In this way, the controller can detect the contact force between the abutment rod and the abutment block in real time. When the controller analyzes the contact force information and determines that the contact force between the abutment rod and the abutment block has reached a set value, it can automatically control the telescopic device to stop. This reduces the burden on doctors who need to concentrate on penetrating the abutment rod during injection, allowing them to focus on other more critical medical procedures or patient monitoring, thus improving work efficiency.

[0009] In some possible implementations, the abutment block is provided with a slider, and the handle has a sliding groove. The abutment block is slidably mounted on the handle through the cooperation of the slider and the sliding groove. This facilitates the assembly between the abutment block and the handle.

[0010] In some possible implementations, the locking element is a locking bolt, and the abutment block has a threaded hole. The locking bolt engages with the threaded hole, and when the locking bolt is tightened, it abuts against the outer surface of the handle. This design makes the locking element simple in structure and easy to use. When it is necessary to lock the position of the abutment block, the locking bolt can be tightened, utilizing the friction between the locking bolt and the outer surface of the handle to lock the position of the abutment block.

[0011] In some possible implementations, the handle is provided with anti-slip pads. This effectively prevents the handle from slipping during use.

[0012] In some possible implementations, the anti-slip mat is a rubber mat. This makes the raw materials for manufacturing the anti-slip mat readily available and reduces manufacturing costs.

[0013] In some possible implementations, the cosmetic surgery injection device also includes a protective cap, which is detachably attached to the handle and covers the slot corresponding to the telescopic mechanism. This prevents the operator from accidentally touching these areas during operation, reducing potential injury from misoperation or contact with moving parts. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. It should be understood that in all drawings, the same reference numerals represent the same elements. In the drawings, for clarity and ease of understanding, the dimensions of some features may be modified.

[0015] Figure 1 A schematic diagram of the structure of an injection device for cosmetic and plastic surgery provided for some embodiments of this application;

[0016] Figure 2 for Figure 1 The diagram shows the structure of a cosmetic surgery injection device in another usage state.

[0017] Figure 3 for Figure 2 A magnified view of the circled portion at point B of the cosmetic and plastic surgery injection device shown.

[0018] Figure 4 for Figure 1 The enlarged view of the part circled at point A of the cosmetic and plastic surgery injection device shown.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Handle; 11. Receptacle; 12. Slide groove; 2. Syringe; 21. Needle; 22. Cylinder; 23. Piston rod; 24. Piston; 3. Telescopic device; 31. Telescopic rod; 4. Connecting rod; 5. Abutment rod; 6. Abutment block; 61. Slider; 7. Locking element; 8. Load sensor; 9. Controller; 10. Anti-slip pad. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that in the description of this utility model, the terms "middle", "upper", "lower", "horizontal", "inner" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figure 1 and combined Figure 2 This application provides an injection device for cosmetic surgery, including a handle 1, a syringe 2, a telescopic device 3, a connecting rod 4, an abutment rod 5, an abutment block 6, and a locking member 7. The handle 1 has a receiving groove 11 extending in a first direction. The syringe 2 is fixedly disposed within the receiving groove 11. Exemplarily, the syringe 2 and the inner wall of the receiving groove 11 can be fixedly connected by screws, snap-fitting, bonding, welding, or other methods. Specifically, the syringe 2 can be directly fixedly connected to the inner wall of the receiving groove 11, or indirectly fixedly connected to the inner wall of the receiving groove 11 through a connecting plate or other structure. It is understood that the connection methods between subsequent components can be designed with reference to the connection method between the syringe 2 and the inner wall of the receiving groove 11, and will not be elaborated further.

[0025] The handle 1 has a through hole to avoid the needle 21 of the syringe 2; the syringe 2 extends in a first direction, and the barrel 22 of the syringe 2 has scale lines (not shown in the figure); the telescopic device 3 is disposed in the receiving groove 11, and the telescopic rod 31 of the telescopic device 3 is fixedly connected to the piston rod 23 of the syringe 2, and the telescopic rod 31 of the telescopic device 3 extends in the first direction; for example, the telescopic device 3 can be an electric cylinder. Of course, this application is not limited to this. In other embodiments, the telescopic device 3 can also be a pneumatic cylinder or a hydraulic cylinder.

[0026] The connecting rod 4 extends in a second direction and is fixedly connected to the piston rod 23 of the syringe 2, the second direction being perpendicular to the first direction; the abutting rod 5 is fixedly connected to the connecting rod 4, extends in the first direction, and the end face of the abutting rod 5 near the needle 21 is flush with the surface of the piston 24 of the syringe 2 facing the needle 21; the abutting block 6 is slidably disposed on the handle 1 in the first direction; the locking member 7 is used to lock the position of the abutting block 6. It is understood that the syringe 2 is a common syringe, and the piston 24 and piston rod 23 are fixedly connected.

[0027] In this way, the scale lines on the syringe barrel 22 can be observed through the opening of the receiving groove 11. The sliding abutment block 6 is adjusted to the scale line corresponding to the required injection volume. Then, the position of the abutment block 6 is locked by the locking member 7. Then, the telescopic device 3 is activated. The telescopic rod 31 of the telescopic device 3 pushes the piston rod 23 and the abutment rod 5 to move synchronously. When the abutment rod 5 abuts against the abutment block 6, the injection volume has reached the preset injection volume. At this time, the telescopic device 3 can be closed. The abutment rod 5 and the abutment block 6 cooperate to form a physical stop point, effectively ensuring that the injection volume will not be less than or exceed the preset value, thereby improving the accuracy of injection volume control.

[0028] Please see Figure 1 and combined Figure 2 and Figure 3 In some embodiments, the cosmetic surgery injection device further includes a load sensor 8 and a controller 9. The load sensor 8 is disposed on the surface of the abutment block 6 facing the abutment rod 5 and is directly opposite to the abutment rod 5. The controller 9 is communicatively connected to the telescopic device 3 and the load sensor 8. Exemplarily, the controller 9 can be a microcontroller. Of course, this application is not limited to this. In other embodiments, the controller 9 can also be a microcomputer terminal. In this way, the controller 9 can detect the abutment force information between the abutment rod 5 and the abutment block 6 in real time. When the controller 9 analyzes the abutment force information and finds that the abutment force between the abutment rod 5 and the abutment block 6 has reached a set value, it can automatically control the telescopic device 3 to stop, reducing the burden on doctors who need to concentrate on penetrating the abutment rod 5 during the injection process, allowing them to focus on other more critical medical operations or patient monitoring, thus improving work efficiency.

[0029] Please see Figure 4 In some embodiments, the abutment block 6 is provided with a slider 61, and the handle 1 is provided with a groove 12. The abutment block 6 is slidably disposed on the handle 1 through the cooperation of the slider 61 and the groove 12. This facilitates the assembly between the abutment block 6 and the handle 1.

[0030] Please see Figure 2 In some embodiments, the locking element 7 is a locking bolt, and the abutment block 6 has a threaded hole. The locking bolt is threaded into the threaded hole, and when the locking bolt is tightened, it abuts against the outer surface of the handle 1. Thus, the locking element 7 has a simple structure and is easy to use. When it is necessary to lock the position of the abutment block 6, the locking bolt can be tightened, utilizing the friction between the locking bolt and the outer surface of the handle 1 to lock the position of the abutment block 6.

[0031] Please see Figure 2 In some embodiments, the handle 1 is provided with an anti-slip pad 10. This effectively prevents the handle 1 from slipping during use.

[0032] In some embodiments, the anti-slip mat 10 is a rubber mat. This makes the raw materials for manufacturing the anti-slip mat 10 readily available and reduces manufacturing costs. However, this application is not limited to this. In other embodiments, the anti-slip mat 10 may also be a latex mat or a silicone mat.

[0033] In some embodiments, the cosmetic and plastic surgery injection device further includes a protective cap (not shown), which is detachably fixed to the handle 1 and covers the slot of the receiving groove 11 corresponding to the telescopic device 3. This prevents the operator from accidentally touching these areas during operation, reducing potential injuries caused by misoperation or contact with moving parts.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. An injection device for cosmetic and plastic surgery, characterized in that, include: A handle, wherein a receiving groove is provided on the handle, and the receiving groove extends in a first direction; The syringe is fixedly disposed in the receiving groove, and the handle is provided with a through hole to avoid the needle of the syringe; the syringe extends in the first direction, and the syringe barrel is provided with scale lines. A telescopic device is provided in the receiving groove, and the telescopic rod of the telescopic device is fixedly connected to the piston rod of the syringe, and the telescopic rod of the telescopic device extends in the first direction; A connecting rod that extends in a second direction and is fixedly connected to the piston rod of the syringe, the second direction being perpendicular to the first direction; A stop rod is fixedly connected to the connecting rod. The stop rod extends in the first direction, and the end face of the stop rod near the needle is flush with the surface of the syringe piston facing the needle. An abutment block, which is slidably disposed on the handle in the first direction; A locking element, used to secure the position of the abutment block.

2. The injection device for cosmetic and plastic surgery according to claim 1, characterized in that, Also includes: A load sensor is disposed on the surface of the abutment block facing the abutment rod and is directly opposite the abutment rod; The controller is communicatively connected to the telescopic device and the load sensor.

3. The injection device for cosmetic and plastic surgery according to claim 2, characterized in that, The abutment block is provided with a slider, and the handle is provided with a sliding groove. The abutment block is slidably mounted on the handle through the cooperation of the slider and the sliding groove.

4. The injection device for cosmetic and plastic surgery according to claim 1, characterized in that, The locking component is a locking bolt, and the abutment block has a threaded hole. The locking bolt is threadedly engaged with the threaded hole. When the locking bolt is tightened, it can abut against the outer surface of the handle.

5. The cosmetic and plastic surgery injection device according to any one of claims 1-4, characterized in that, The handle is equipped with an anti-slip pad.

6. The injection device for cosmetic and plastic surgery according to claim 5, characterized in that, The anti-slip mat is a rubber mat.

7. The injection device for cosmetic and plastic surgery according to claim 6, characterized in that, It also includes a protective cover, which is detachably fixed to the handle and covers the accommodating groove corresponding to the slot of the telescopic device.

Citation Information

Patent Citations

  • Novel injection device for plastic surgery

    CN209529826U