Hyaluronic acid injection device capable of accurately controlling injection amount

Abstract

The utility model provides a hyaluronic acid injection device capable of accurately controlling injection volume, which relates to the technical field of medical instruments and comprises a liquid storage tube, a perforated disc is fixedly connected to the upper surface of the liquid storage tube, a scale ring is fixedly connected to the outer surface of one side, far away from the liquid storage tube, of the perforated disc, and a positioning column is clamped to the inner surface of the scale ring. One end of the positioning column away from the scale ring is slidably connected with a spring wrapping rod. According to the hyaluronic acid injection device capable of accurately controlling the injection amount, a liquid pressing disc is driven to push out liquid medicine in a liquid storage pipe in the descending process of a spiral groove sleeve, a positioning column in an auxiliary rotating frame is driven to rotate in the rotating process of the auxiliary rotating frame, and the positioning column is pushed into the auxiliary rotating frame by the inner wall of a scale ring in the rotating process to extrude a spring of a spring wrapping rod; when the positioning column slides to the position of the scale ring groove, the spring of the spring wrapping rod reversely pushes the positioning column to be clamped into the scale ring for auxiliary positioning, the purpose of more accurately controlling the infusion amount is achieved, and the problem that when medical workers push liquid medicine with hands, the infusion total amount is difficult to accurately control is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a kind of hyaluronic acid injection device of accurate control injection volume. BACKGROUND

[0002] Medical device refers to the instrument, equipment, appliance, in-vitro diagnostic reagent and calibrators, materials and other similar or related articles, including the computer software needed, which are directly or indirectly for human body. Medical device includes medical equipment and medical consumables. The utility is mainly obtained through physical means, not through pharmacology, immunology or metabolism. Or although these means are involved, they only play a supporting role.

[0003] Hyaluronic acid injection device is one of common medical devices, such as the liquid hyaluronic acid injector device for plastic surgery disclosed in Chinese patent application publication CN216091730U, which comprises a syringe body. The lower part of the syringe body is coaxially slidingly fitted with a sleeve. Adjustment grooves are formed on both sides of the sleeve along the axial direction of the syringe body, and the adjustment grooves are through grooves in the radial direction of the syringe body. The beneficial effect is that the adjustment grooves can adjust the position of the shield along the axial direction of the syringe body and lock it by sliding along the guide column and pressing the surface of the sleeve with the locking ring. Then, by pressing the bottom end of the shield against the skin surface of the patient, the needle of the syringe body cannot continue to move inward after penetrating the subcutaneous tissue, replacing the method of holding the syringe body by hand to maintain the penetration depth. This prevents the syringe body from continuing to move inward during injection, which helps to accurately and stably maintain the penetration depth of the syringe body.

[0004] However, the above prior art solution has the following defects in use: the drug solution is in an open state for a long time before injection, which may be contaminated during handling. If the medical staff manually pushes the drug solution during infusion, it may be difficult to accurately control the total amount of infusion during infusion. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a hyaluronic acid injection device that can accurately control the injection volume, solving the problems raised in the background art.

[0006] TECHNICAL SCHEME

[0007] The utility model discloses a kind of hyaluronic acid injection devices of precision control injection amount, including liquid storage pipe, the upper surface of liquid storage pipe is fixedly connected with aperture disc, aperture disc far from the outer surface of liquid storage pipe side fixedly connected with scale ring, scale ring inner surface is clamped with positioning column, positioning column far from scale ring one end slidingly connected with spring wrapping rod, spring wrapping rod far from the outer surface of positioning column side fixedly connected with auxiliary rotary frame, auxiliary rotary frame inner surface slidingly connected with positioning column, auxiliary rotary frame inner surface fixedly connected with transfer shaft, the outer circumferential surface of transfer shaft is rotatably connected with aperture disc, transfer shaft end close to liquid storage pipe fixedly connected with threaded rod, the outer surface of threaded rod is threadedly connected with screw groove sleeve, screw groove sleeve far from aperture disc one end fixedly connected with liquid pressing disc, liquid pressing disc inner surface fixedly connected with air vent, liquid pressing disc side fixedly connected with telescopic column outside the aperture disc close to aperture disc, liquid pressing disc far from aperture disc one end fixedly connected with aperture disc, the outer circumferential surface of liquid pressing disc slidingly connected with liquid storage pipe inner wall, liquid storage pipe far from aperture disc one end fixedly connected with liquid outlet disc, liquid outlet disc inner surface slidingly connected with intercommunication pile, intercommunication pile far from aperture disc one end clamped with top pile frame, top pile frame outer surface fixedly connected with needle fixing sleeve, needle fixing sleeve inner surface slidingly connected with liquid outlet disc.

[0008] Further, the scale ring is an annular block, the outer surface of the annular block close to the liquid storage pipe is fixedly connected with the aperture disc, the outer surface of the annular block far from the aperture disc is provided with scale lines, the inner wall of the annular block is provided with ten semisphere grooves, the semisphere grooves inner surface is clamped with the positioning column.

[0009] Further, the auxiliary rotary frame is a circular sleeve, the inner surface of the circular sleeve is fixedly connected with the transfer shaft, the outer circumferential surface of the circular sleeve is fixedly connected with the rectangular column, the rectangular column far from the transfer shaft is provided with a rectangular groove, the rectangular groove inner surface slidingly connected with the positioning column, the rectangular groove inner wall is fixedly connected with the spring wrapping rod.

[0010] Further, the liquid pressing disc is a circular disc, the outer surface of the circular disc close to the aperture disc is fixedly connected with the screw groove sleeve, the outer surface of the circular disc close to the aperture disc is fixedly connected with the telescopic column, the outer surface of the circular disc far from the aperture disc is provided with a circular groove, the diameter of the circular groove is consistent with the diameter of the intercommunication pile, the outer surface of the circular disc far from the aperture disc is provided with a through hole, the through hole inner surface is fixedly connected with the air vent.

[0011] Further, the liquid outlet disc is a circular disc, the outer surface of the circular disc close to the aperture disc is fixedly connected with the liquid storage pipe, the circular disc center position is provided with a circular hole, the circular hole inner surface is fixedly connected with the circular tube, the circular tube inner surface slidingly connected with the intercommunication pile, the outer circumferential surface of the circular tube slidingly connected with the needle fixing sleeve.

[0012] Further, the intercommunication pile is a circular pile, the circular groove far from the aperture disc one end of the circular pile is provided with a circular groove, the circular groove inner wall close to the aperture disc side clamped with the top pile frame, the circular groove inner wall is provided with a rectangular groove that penetrates to the outer circumferential surface of the circular pile.

[0013] Further, the top stake frame is a cross-shaped plate, the outer surface of the cross-shaped plate is fixedly connected with the inner wall of the needle fixing sleeve, the outer surface of the cross-shaped plate close to the opening disc is fixedly connected with a circular rod, and the end of the circular rod away from the cross-shaped plate is connected with the inner wall of the communication stake.

[0014] The hyaluronic acid injection device has the advantages that:

[0015] 1. The hyaluronic acid injection device can precisely control the injection amount, the liquid in the liquid storage pipe is pushed out by the pressure disc during the descending process of the screw groove sleeve, the positioning column in the auxiliary rotating frame is rotated during the rotating process of the auxiliary rotating frame, the spring of the spring wrapping rod is extruded by the inner wall of the scale ring during the rotating process of the positioning column, the spring of the spring wrapping rod reversely pushes the positioning column to be clamped into the scale ring for auxiliary positioning when the positioning column slides to the slotted portion of the scale ring, the purpose of more precise control of the infusion amount is achieved, and the problem that it is difficult for medical staff to accurately control the total infusion amount when manually pushing the liquid medicine is solved.

[0016] 2. The hyaluronic acid injection device can precisely control the injection amount, the needle fixing sleeve is sleeved outside the circular pipe of the liquid outlet disc, the communication stake is lifted during the lifting process of the top stake frame in the needle fixing sleeve, the needle fixing sleeve and the space in the liquid storage pipe are connected with each other after the communication stake is lifted, and then the liquid in the liquid storage pipe flows into the needle tube fixed in the needle fixing sleeve, the purpose of sealed storage of the liquid before infusion is achieved, and the problem that the liquid is possibly contaminated in the open state for a long time before injection is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure scale ring of the utility model;

[0018] Figure 2 It is a structure auxiliary rotating frame of the utility model;

[0019] Figure 3 It is a structure liquid storage pipe of the utility model;

[0020] Figure 4 It is a structure pressure disc of the utility model;

[0021] Figure 5 It is a structure communication stake of the utility model.

[0022] The liquid storage pipe 1, the opening disc 2, the scale ring 3, the positioning column 4, the spring wrapping rod 5, the auxiliary rotating frame 6, the middle rotating shaft 7, the threaded rod 8, the screw groove sleeve 9, the pressure disc 10, the air valve 11, the telescopic column 12, the liquid outlet disc 13, the communication stake 14, the top stake frame 15 and the needle fixing sleeve 16. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0024] Referring to Figures 1-5 The application discloses an accurate injection volume control hyaluronic acid injection device, which comprises a liquid storage pipe 1, the upper surface of the liquid storage pipe 1 is fixedly connected with an open hole disc 2, the outer surface of the side, away from the liquid storage pipe 1, of the open hole disc 2 is fixedly connected with a scale ring 3, the scale ring 3 is an annular block, the outer surface of the side, close to the liquid storage pipe 1, of the annular block is fixedly connected with the open hole disc 2, the outer surface of the side, away from the open hole disc 2, of the annular block is provided with scale lines, the inner wall of the annular block is provided with ten hemispherical grooves, the inner surface of the hemispherical grooves is clamped with a positioning column 4, the scale ring 3 is used for assisting the positioning of the auxiliary rotating frame 6, and the scale on the scale ring 3 is convenient for confirming the total amount of the liquid output at present.

[0025] The inner surface of the scale ring 3 is clamped with the positioning column 4, the side, away from the scale ring 3, of the positioning column 4 is slidably connected with a spring wrapping rod 5, the outer surface of the side, away from the positioning column 4, of the spring wrapping rod 5 is fixedly connected with the auxiliary rotating frame 6, the auxiliary rotating frame 6 is a circular sleeve, the inner surface of the circular sleeve is fixedly connected with a middle rotating shaft 7, the outer circumferential surface of the circular sleeve is fixedly connected with a rectangular column, the side, away from the middle rotating shaft 7, of the rectangular column is provided with a rectangular groove, the inner surface of the rectangular groove is slidably connected with the positioning column 4, the inner wall of the rectangular groove is fixedly connected with the spring wrapping rod 5, and the auxiliary rotating frame 6 is used for driving the middle rotating shaft 7 in the auxiliary rotating frame 6 to rotate in the self-rotating process and driving the positioning column 4 to move in the same direction.

[0026] The inner surface of the auxiliary rotating frame 6 is slidably connected with the positioning column 4, the inner surface of the auxiliary rotating frame 6 is fixedly connected with the middle rotating shaft 7, the outer circumferential surface of the middle rotating shaft 7 is rotatably connected with the open hole disc 2, the side, close to the liquid storage pipe 1, of the middle rotating shaft 7 is fixedly connected with a threaded rod 8, the outer surface of the threaded rod 8 is threadedly connected with a screw groove sleeve 9, the side, away from the open hole disc 2, of the screw groove sleeve 9 is fixedly connected with a liquid pressing disc 10, the liquid pressing disc 10 is a circular disc, the outer surface of the side, close to the open hole disc 2, of the circular disc is fixedly connected with the screw groove sleeve 9, the outer surface of the side, close to the open hole disc 2, of the circular disc is fixedly connected with an extension column 12, the outer surface of the side, away from the open hole disc 2, of the circular disc is provided with a circular groove, the diameter of the circular groove is consistent with the diameter of a communication pile 14, the outer surface of the side, away from the open hole disc 2, of the circular disc is provided with a through hole, the inner surface of the through hole is fixedly connected with an air vent valve 11, and the liquid pressing disc 10 is used for pressing the liquid in the liquid storage pipe 1 into a needle fixing sleeve 16 through the slot of the communication pile 14 in the pressing process.

[0027] The inner surface of the liquid pressing disc 10 is fixedly connected with a breather valve 11, the inner wall of the breather valve 11 is fixedly connected with a simple pressure valve, which is automatically opened when the internal pressure of the liquid storage pipe 1 is greater than and is automatically closed after the pressure is normal, so as to avoid too much liquid medicine in the liquid storage pipe 1 from sliding into the upper side of the liquid pressing disc 10, thereby reducing the liquid medicine passing through the breather valve 11 as much as possible, and the storage amount of the liquid medicine in the liquid storage pipe 1 includes this part of loss, the outer surface of the side of the liquid pressing disc 10 close to the hole disc 2 is fixedly connected with an extension column 12, the end of the extension column 12 away from the liquid pressing disc 10 is fixedly connected with the hole disc 2, the outer circumference of the liquid pressing disc 10 is slidingly connected with the inner wall of the liquid storage pipe 1, the end of the liquid storage pipe 1 away from the hole disc 2 is fixedly connected with a liquid outlet disc 13, the liquid outlet disc 13 is a circular disc, the outer surface of the side of the circular disc close to the hole disc 2 is fixedly connected with the liquid storage pipe 1, a circular hole is arranged at the center of the circular disc, the inner surface of the circular hole is fixedly connected with a circular tube, the inner surface of the circular tube is slidingly connected with a communication pile 14, the outer circumference of the circular tube is slidingly connected with a needle fixing sleeve 16, and the liquid outlet disc 13 is used for providing a necessary working environment for the communication pile 14 and fixing the pile supporting frame 15.

[0028] The inner surface of the liquid outlet disc 13 is slidingly connected with the communication pile 14, the communication pile 14 is a circular pile, the end of the circular pile away from the hole disc 2 is provided with a circular groove, the inner wall of the side of the circular groove close to the hole disc 2 is clamped with the pile supporting frame 15, and the inner wall of the circular groove is provided with a rectangular groove penetrating to the outer circumference of the circular pile, and the communication pile 14 is used for mutually communicating the space in the circular tube of the liquid outlet disc 13 with the space in the liquid storage pipe 1.

[0029] The end of the communication pile 14 away from the hole disc 2 is clamped with the pile supporting frame 15, the pile supporting frame 15 is a cross-shaped plate, the outer surface of the cross-shaped plate is fixedly connected with the inner wall of the needle fixing sleeve 16, the outer surface of the side of the cross-shaped plate close to the hole disc 2 is fixedly connected with a circular rod, the end of the circular rod away from the cross-shaped plate is clamped with the inner wall of the communication pile 14, the pile supporting frame 15 is used for lifting the communication pile 14 through the circular rod in the process of being driven to move upward by the needle fixing sleeve 16, the outer surface of the pile supporting frame 15 is fixedly connected with the needle fixing sleeve 16, and the inner surface of the needle fixing sleeve 16 is slidingly connected with the liquid outlet disc 13.

[0030] In use, the needle tube is fixed outside the needle fixing sleeve 16, and then the needle fixing sleeve 16 is sleeved outside the circular tube of the liquid outlet disc 13, so that the pile frame 15 in the needle fixing sleeve 16 is lifted to lift the communication pile 14, so that the communication pile 14 is lifted, and the needle fixing sleeve 16 and the space in the liquid storage tube 1 are interconnected, so that the liquid in the liquid storage tube 1 flows into the needle tube fixed by the needle fixing sleeve 16, and the liquid before infusion is sealed and stored, when infusion is needed, the auxiliary rotating frame 6 is rotated, the auxiliary rotating frame 6 drives the intermediate shaft 7 in it to rotate during rotation, so that the intermediate shaft 7 drives the screw groove sleeve 9 to descend through the screw groove during rotation, so that the screw groove sleeve 9 drives the liquid pressing disc 10 to push the liquid in the liquid storage tube 1 out during descent, the auxiliary rotating frame 6 drives the positioning column 4 in it to rotate during rotation, the positioning column 4 is pushed into the auxiliary rotating frame 6 by the inner wall of the scale ring 3 during rotation to extrude the spring of the spring wrapping rod 5, when the positioning column 4 slides to the slotted portion of the scale ring 3, the spring of the spring wrapping rod 5 reversely pushes the positioning column 4 to be clamped into the scale ring 3 for auxiliary positioning, so as to more accurately control the infusion amount.

[0031] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A hyaluronic acid injection device capable of precisely controlling the injection volume, comprising a reservoir (1), characterized in that: An opening plate (2) is fixedly connected to the upper surface of the liquid storage tube (1). A scale ring (3) is fixedly connected to the outer surface of the opening plate (2) away from the liquid storage tube (1). A positioning post (4) is snapped into the inner surface of the scale ring (3). A spring rod (5) is slidably connected to the end of the positioning post (4) away from the scale ring (3). An auxiliary rotating frame (6) is fixedly connected to the outer surface of the spring rod (5) away from the positioning post (4). A positioning post (4) is slidably connected to the inner surface of the auxiliary rotating frame (6). A central rotating shaft (7) is fixedly connected to the inner surface of the auxiliary rotating frame (6). The opening plate (2) is rotatably connected to the outer circumference of the central rotating shaft (7). A threaded rod (8) is fixedly connected to the end of the central rotating shaft (7) near the liquid storage tube (1). A threaded sleeve (9) is threadedly connected to the outer surface of the threaded rod (8). The threaded sleeve (9) is far from the hole. One end of the plate (2) is fixedly connected to a pressure plate (10), and a vent valve (11) is fixedly connected to the inner surface of the pressure plate (10). A telescopic column (12) is fixedly connected to the outer surface of the pressure plate (10) near the opening plate (2). The opening plate (2) is fixedly connected to the end of the telescopic column (12) away from the pressure plate (10). The inner wall of the storage pipe (1) is slidably connected to the outer circumference of the pressure plate (10). The outlet plate (13) is fixedly connected to the end of the storage pipe (1) away from the opening plate (2). A connecting pile (14) is slidably connected to the inner surface of the outlet plate (13). A top pile frame (15) is snapped to the end of the connecting pile (14) away from the opening plate (2). A fixed needle sleeve (16) is fixedly connected to the outer surface of the top pile frame (15). The outlet plate (13) is slidably connected to the inner surface of the fixed needle sleeve (16).

2. The hyaluronic acid injection device with precise controllable injection volume according to claim 1, characterized in that: The scale ring (3) is an annular block. An opening plate (2) is fixedly connected to the outer surface of the annular block near the liquid storage tube (1). A scale line is provided on the outer surface of the annular block away from the opening plate (2). Ten hemispherical grooves are provided on the inner wall of the annular block. A positioning post (4) is snapped into the inner surface of the hemispherical groove.

3. The hyaluronic acid injection device with precise controllable injection volume according to claim 1, characterized in that: The auxiliary rotating frame (6) is a circular sleeve. A central rotating shaft (7) is fixedly connected to the inner surface of the circular sleeve. A rectangular column is fixedly connected to the outer circumference of the circular sleeve. A rectangular groove is provided at the end of the rectangular column away from the central rotating shaft (7). A positioning column (4) is slidably connected to the inner surface of the rectangular groove. A spring rod (5) is fixedly connected to the inner wall of the rectangular groove.

4. The hyaluronic acid injection device with precise controllable injection volume according to claim 1, characterized in that: The pressure plate (10) is a circular plate. A screw groove sleeve (9) is fixedly connected to the outer surface of the circular plate near the opening plate (2). A telescopic column (12) is fixedly connected to the outer surface of the circular plate near the opening plate (2). A circular groove is provided on the outer surface of the circular plate away from the opening plate (2). The diameter of the circular groove is the same as the diameter of the connecting pile (14). A through hole is provided on the outer surface of the circular plate away from the opening plate (2). A vent valve (11) is fixedly connected to the inner surface of the through hole.

5. The hyaluronic acid injection device with precise controllable injection volume according to claim 1, characterized in that: The liquid outlet plate (13) is a circular plate. A liquid storage tube (1) is fixedly connected to the outer surface of the circular plate near the opening plate (2). A circular hole is provided at the center of the circular plate. A circular tube is fixedly connected to the inner surface of the circular hole. A connecting post (14) is slidably connected to the inner surface of the circular tube. A fixed needle sleeve (16) is slidably connected to the outer circumference of the circular tube.

6. The hyaluronic acid injection device with precise controllable injection volume according to claim 1, characterized in that: The connecting pile (14) is a circular pile. A circular groove is provided at the end of the circular pile away from the hole plate (2). A top pile frame (15) is attached to the inner wall of the circular groove near the hole plate (2). A rectangular groove is provided on the inner wall of the circular groove that extends to the outer circumference of the circular pile.

7. The hyaluronic acid injection device with precise controllable injection volume according to claim 1, characterized in that: The top pile frame (15) is a cross-shaped plate. The outer surface of the cross-shaped plate is fixedly connected to the inner wall of the pin sleeve (16). A circular rod is fixedly connected to the outer surface of the cross-shaped plate near the opening plate (2). The end of the circular rod away from the cross-shaped plate is clamped to the inner wall of the connecting pile (14).

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