Micro-plastic filler injector

Abstract

The utility model discloses a filler injector for micro plastic surgery, which relates to the technical field of medical instruments and comprises an injection seat, a placing groove is arranged at the upper end of the injection seat, an injection tube is placed on the inner side of the placing groove, and a needle head is movably mounted at one end of the injection tube. By the adoption of the structure, after an injection tube is placed in the containing groove, a piston pull rod on the injection tube is located on the inner side of the movable groove, then the injection base is held by hand, the poking wheel is operated to enable the rotating rod connected with the poking wheel to rotate in the installation cavity, and rotation of the rotating rod is in linkage with the first bevel gear through the second bevel gear; the screw rod connected with the first bevel gear rotates on the inner side of the mounting cavity, the push rod in threaded connection with the outer side slides at the through hole due to rotation of the screw rod, and meanwhile, the push rod pushes the piston pull rod to uniformly push and inject filling liquid in the injection tube into the plastic part of a patient; therefore, medical staff can conveniently and uniformly control the injection force of the piston pull rod, and then the injection stability of the filling liquid is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments, and particularly relates to a filler syringe for micro plastic surgery. Background Art

[0002] Micro-plastic surgery is the use of high-tech medical technology. It can make you more beautiful and younger in a short time without surgery. It is gradually replacing the plastic surgery of the past. It has the advantages of being safe, without wounds and with a short recovery period. There are many types of micro-plastic surgery, among which hyaluronic acid filler injection is the most common.

[0003] A Chinese patent with publication number CN219941582U discloses a disposable plastic medical syringe, comprising a syringe body, a connecting tube is provided on one side of the syringe body, and a mounting tube is fixedly installed on the other side of the connecting tube, an insertion tube is fixedly installed on the outside of the connecting tube, and a needle is fixedly installed on one side of the insertion tube, a rubber stopper is slidably installed inside the syringe body, and a push rod is provided on the other side of the syringe body, a recovery chamber is provided inside the push rod, and a push plate is fixedly installed on the other side of the push rod.

[0004] The above-mentioned prior art micro-plastic surgery filler syringe still has certain deficiencies in actual use. For example, the doctor cannot accurately control the injection speed when performing the push injection operation. Once the injection speed is too fast, the filler will quickly shoot from the needle to the subcutaneous tissue of the plastic surgery area, which may easily cause certain damage to the subcutaneous tissue and affect the overall effect of the plastic surgery. In more serious cases, it may cause infection. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a micro-plastic surgery filler syringe to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A micro-plastic surgery filler syringe comprises an injection seat, a placement groove is provided at the upper end of the injection seat, an injection tube is placed inside the placement groove, a needle is movably mounted on one end of the injection tube, a piston pull rod is movably mounted on the other end of the injection tube away from the needle, a pushing mechanism is movably mounted on the upper end of the injection seat, the injection seat is movably connected to the end of the piston pull rod away from the injection tube through the pushing mechanism, an operating mechanism is fixedly mounted on the outer side of the pushing mechanism, and a fixing mechanism is movably mounted on the outer side of the injection seat;

[0008] The pushing mechanism includes a movable groove, which is provided at the upper end of the injection seat, a mounting cavity is provided on the inner side of the injection seat, a through hole is provided on the inner side of the movable groove, the movable groove is connected to the inside of the mounting cavity through the through hole, a screw is rotatably connected to the inner side of the mounting cavity, a pushing rod is threadedly connected to the outer side of the screw, one end of the pushing rod movably passes through the through hole, the pushing rod and the through hole are slidably connected, the operating mechanism is fixedly installed on the outer side of the screw, and the piston pull rod can be pushed evenly through the pushing mechanism;

[0009] The operating mechanism includes a rotating rod, which is rotatably connected to the inner side of the installation cavity, one end of the rotating rod is fixedly connected to the second bevel gear, the outer side of the screw rod is fixedly installed with the first bevel gear, the first bevel gear and the second bevel gear are meshingly connected, and the end of the rotating rod away from the second bevel gear is rotatably penetrated through the cavity wall of the installation cavity and fixedly installed with a dial wheel, and the pushing mechanism can be conveniently controlled through the operating mechanism;

[0010] The fixing mechanism includes a limit seat, the rear end of the limit seat is rotatably connected to the back of the injection seat, the front end of the limit seat is fixedly connected to the first connecting block, the front of the injection seat is fixedly connected to the second connecting block, the inner side of the first connecting block is threadedly connected to a hand bolt, the threaded end of the hand bolt passes through the first connecting block and the second connecting block for insertion, and the injection tube can be conveniently fixed through the fixing mechanism to ensure the stability of the push injection.

[0011] As a preferred technical solution, a first limiting groove is provided at the upper end of the placement groove, and the end of the needle close to the injection tube is inserted into the inner side of the first limiting groove. A second limiting groove is provided at the upper end of the placement groove, and the auxiliary handle of the injection tube is inserted into the inner side of the second limiting groove. Through the first limiting groove and the second limiting groove on the placement groove, the needle part and the auxiliary handle part of the injection tube can be conveniently limited.

[0012] As a preferred technical solution, sliding grooves are symmetrically provided on the inner side of the through hole, sliding blocks are symmetrically fixedly connected to the outer side of the push rod, the sliding block and the sliding groove are slidably connected, a handle is fixedly installed on the lower end of the injection seat, and a finger groove is provided on one side of the handle. Through the sliding groove and the sliding block, the push rod can slide conveniently on the inner side of the through hole, and the injection seat can be conveniently used and operated through the handle on the injection seat.

[0013] As a preferred technical solution, a screw hole is provided on the inner side of the first connecting block, and a hand-tightening bolt is threadedly connected to the inner side of the screw hole. A socket is provided on the inner side of the second connecting block, and the threaded end of the hand-tightening bolt is threadedly inserted into the screw hole and the socket. Through the screw hole and the socket, the first connecting block and the second connecting block can be conveniently connected by the hand-tightening bolt.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] First, after placing the syringe in the placement slot, make the piston pull rod on the syringe be inside the movable slot, then hold the injection seat and operate the thumbwheel to make the rotating rod connected to the thumbwheel rotate in the installation cavity, and the rotation of the rotating rod is linked to the first thumbwheel through the second bevel gear, so that the screw connected to the first bevel gear rotates inside the installation cavity. Due to the rotation of the screw, the push rod connected to the outer thread slides in the through hole, and at the same time, the push rod pushes the piston pull rod to evenly push the filling liquid in the syringe into the plastic surgery part of the patient, so that it is convenient for medical staff to evenly control the pushing force of the piston pull rod, thereby improving the stability of filling liquid injection;

[0016] Second, after placing the injection tube in the placement slot, flip the limiting seat on the injection seat so that the first connecting block at one end of the front side of the limiting seat is placed on the second connecting block on the front side of the injection seat after flipping, and then rotate the hand-tightening bolt on the first connecting block so that the threaded end is inserted into the second connecting block. This makes it easy to limit the injection tube in the placement slot of the injection seat and ensure stability during the injection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 The utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the opening of the limit seat of the utility model;

[0020] Figure 4 It is a schematic diagram of the internal structure of the installation cavity of the utility model.

[0021] Figure numerals: 1. injection seat, 2. injection tube, 3. needle, 4. piston pull rod, 5. fixing mechanism, 501. limiting seat, 502. first connecting block, 503. hand screw bolt, 504. second connecting block, 6. handle, 7. finger groove, 8. placement groove, 801. first limiting groove, 802. second limiting groove, 9. operating mechanism, 901. dial wheel, 902. rotating rod, 903. first bevel gear, 904. second bevel gear, 10. jack, 11. screw hole, 13. pushing mechanism, 131. movable groove, 132. through hole, 133. pushing rod, 134. screw, 135. mounting cavity, 14. sliding block, 15. sliding groove. DETAILED DESCRIPTION

[0022] refer to Figures 1 to 4, a micro-plastic filling syringe described in this embodiment includes an injection seat 1, a placement groove 8 is opened at the upper end of the injection seat 1, an injection tube 2 is placed inside the placement groove 8, a needle 3 is movably installed at one end of the injection tube 2, a piston pull rod 4 is movably installed at the other end of the injection tube 2 away from the needle 3, a pushing mechanism 13 is movably installed at the upper end of the injection seat 1, the injection seat 1 is movably connected to the end of the piston pull rod 4 away from the injection tube 2 through the pushing mechanism 13, an operating mechanism 9 is fixedly installed on the outside of the pushing mechanism 13, and a fixing mechanism 5 is movably installed on the outside of the injection seat 1; the piston part of the piston pull rod 4 is arranged on the inside of the injection tube 2, and a liquid level scale is also arranged on the outside of the injection tube 2, which can facilitate quantitative injection according to the injection volume; the injection tube 2 is disposable and can be replaced to avoid cross infection;

[0023] The pushing mechanism 13 includes a movable groove 131, which is provided at the upper end of the injection seat 1. A mounting cavity 135 is provided on the inner side of the injection seat 1. A through hole 132 is provided on the inner side of the movable groove 131. The movable groove 131 is connected to the inside of the mounting cavity 135 through the through hole 132. A screw rod 134 is rotatably connected to the inner side of the mounting cavity 135. A pushing rod 133 is threadedly connected to the outer side of the screw rod 134. One end of the pushing rod 133 movably passes through the through hole 132. The pushing rod 133 and the through hole 132 are slidably connected. The operating mechanism 9 is fixedly installed on the outer side of the screw rod 134. The operating mechanism 9 includes a rotating rod 902, which is rotatably connected to the inner side of the mounting cavity 135. One end of the rotating rod 902 is fixedly connected to the second bevel gear 904. The outer side of the screw 134 is fixedly installed with the first bevel gear 903. 03 and the second bevel gear 904 are meshingly connected, and the end of the rotating rod 902 away from the second bevel gear 904 rotates to pass through the cavity wall of the installation cavity 135 and is fixedly installed with a thumbwheel 901; after the injection tube 2 is placed in the placement groove 8, the piston pull rod 4 on the injection tube 2 is located on the inner side of the movable groove 131, and then the injection seat 1 is held and the thumbwheel 901 is operated to make the rotating rod 902 connected to the thumbwheel 901 rotate in the installation cavity 135, and the rotation of the rotating rod 902 is linked to the first bevel gear 903 through the second bevel gear 904, so that the screw 134 connected to the first bevel gear 903 rotates inside the installation cavity 135, and due to the rotation of the screw 134, the push rod 133 connected to the outer thread slides at the through hole 132, and at the same time, the push rod 133 pushes the piston pull rod 4 to evenly inject the filling liquid in the injection tube 2 into the patient's plastic surgery area.

[0024] The fixing mechanism 5 includes a limit seat 501, the rear side end of the limit seat 501 is rotatably connected to the back side of the injection seat 1, the front side end of the limit seat 501 is fixedly connected to the first connecting block 502, the front side of the injection seat 1 is fixedly connected to the second connecting block 504, the inner side of the first connecting block 502 is threadedly connected to the hand bolt 503, the threaded end of the hand bolt 503 passes through the first connecting block 502 and the second connecting block 504 for insertion, after the injection tube 2 is placed in the placement groove 8, the limit seat 501 on the injection seat 1 is then flipped over, so that the first connecting block 502 at one end of the front side of the limit seat 501 after flipping is placed on the second connecting block 504 on the front side of the injection seat 1, and then the hand bolt 503 on the first connecting block 502 is rotated so that its threaded end is inserted into the second connecting block 504.

[0025] refer to Figure 3 A first limiting groove 801 is provided at the upper end of the placement groove 8, and the end of the needle 3 close to the injection tube 2 is inserted into the inner side of the first limiting groove 801. A second limiting groove 802 is provided at the upper end of the placement groove 8, and the auxiliary handle of the injection tube 2 is inserted into the inner side of the second limiting groove 802. By utilizing the first limiting groove 801 and the second limiting groove 802 at the placement groove 8, the needle 3 and the auxiliary handle of the injection tube 2 can be limitedly inserted respectively after the injection tube 2 is placed.

[0026] refer to Figure 1 and Figure 3 A sliding groove 15 is symmetrically provided on the inner side of the through hole 132, and a sliding block 14 is symmetrically fixedly connected to the outer side of the push rod 133. The sliding block 14 and the sliding groove 15 are slidably connected. A handle 6 is fixedly installed on the lower end of the injection seat 1, and a finger groove 7 is provided on one side of the handle 6. The push rod 133 slides in the sliding groove 15 of the through hole 132 through the external sliding block 14, which can improve the stability of the push rod 133. The handle 6 with the finger groove 7 can facilitate the user to hold the injection seat 1 for operation.

[0027] refer to Figure 2 and Figure 3 A screw hole 11 is provided on the inner side of the first connecting block 502, and a hand-tightening bolt 503 is threadedly connected to the inner side of the screw hole 11. A socket 10 is provided on the inner side of the second connecting block 504. The threaded end of the hand-tightening bolt 503 is threadedly inserted into the screw hole 11 and the socket 10 for plugging. The hand-tightening bolt 503 is threadedly extended and retracted at the screw hole 11 of the first connecting block 502, and can be conveniently inserted into the socket 10 of the second connecting block 504 to connect the first connecting block 502 and the second connecting block 504.

[0028] Principle and advantages of use: When in use, first place the injection tube 2 with the filling liquid in the placement groove 8, then flip the limiting seat 501 on the injection seat 1, so that the first connecting block 502 at one end of the front side of the limiting seat 501 after flipping is placed on the second connecting block 504 on the front side of the injection seat 1, and then rotate the hand screw 503 on the first connecting block 502 to insert its threaded end into the second connecting block 504;

[0029] During use, the injection seat 1 is held and the dial 901 is operated to make the rotating rod 902 connected to the dial 901 rotate in the installation cavity 135, and the rotation of the rotating rod 902 is linked to the first bevel gear 903 through the second bevel gear 904, so that the screw 134 connected to the first bevel gear 903 rotates inside the installation cavity 135. Due to the rotation of the screw 134, the push rod 133 connected by the outer thread slides in the through hole 132. At the same time, the push rod 133 pushes the piston pull rod 4 to evenly inject the filling liquid in the injection tube 2 into the patient's plastic surgery area.

Claims

1. A micro-plastic surgery filler syringe, comprising an injection seat (1), characterized in that: The upper end of the injection seat (1) is provided with a placement groove (8), an injection tube (2) is placed inside the placement groove (8), a needle (3) is movably mounted on one end of the injection tube (2), a piston pull rod (4) is movably mounted on the other end of the injection tube (2) away from the needle (3), a pushing mechanism (13) is movably mounted on the upper end of the injection seat (1), the injection seat (1) is movably connected to the end of the piston pull rod (4) away from the injection tube (2) through the pushing mechanism (13), an operating mechanism (9) is fixedly mounted on the outer side of the pushing mechanism (13), and a fixing mechanism (5) is movably mounted on the outer side of the injection seat (1); The pushing mechanism (13) comprises a movable groove (131), wherein the movable groove (131) is provided at the upper end of the injection seat (1), an installation cavity (135) is provided on the inner side of the injection seat (1), a through hole (132) is provided on the inner side of the movable groove (131), the movable groove (131) and the interior of the installation cavity (135) are mutually connected through the through hole (132), a screw rod (134) is rotatably connected to the inner side of the installation cavity (135), a pushing rod (133) is threadedly connected to the outer side of the screw rod (134), one end of the pushing rod (133) movably passes through the through hole (132), the pushing rod (133) and the through hole (132) are slidably connected, and the operating mechanism (9) is fixedly installed on the outer side of the screw rod (134).

2. A micro-plastic surgery filler syringe according to claim 1, characterized in that: A first limiting groove (801) is provided at the upper end of the placement groove (8), and one end of the needle (3) close to the injection tube (2) is inserted into the inner side of the first limiting groove (801). A second limiting groove (802) is provided at the upper end of the placement groove (8), and the auxiliary handle of the injection tube (2) is inserted into the inner side of the second limiting groove (802).

3. The micro-plastic surgery filler syringe according to claim 1, characterized in that: A sliding groove (15) is symmetrically provided on the inner side of the through hole (132), and a sliding block (14) is symmetrically fixedly connected to the outer side of the push rod (133), and the sliding block (14) and the sliding groove (15) are slidably connected.

4. The micro-plastic surgery filler syringe according to claim 1, characterized in that: The operating mechanism (9) comprises a rotating rod (902), wherein the rotating rod (902) is rotatably connected to the inner side of the installation cavity (135), one end of the rotating rod (902) is fixedly connected to a second bevel gear (904), a first bevel gear (903) is fixedly installed on the outer side of the screw rod (134), the first bevel gear (903) and the second bevel gear (904) are meshingly connected, and a thumbwheel (901) is fixedly installed on the cavity wall of the installation cavity (135) at one end of the rotating rod (902) away from the second bevel gear (904).

5. The micro-plastic surgery filler syringe according to claim 1, characterized in that: The fixing mechanism (5) comprises a limit seat (501), the rear side end of the limit seat (501) is rotatably connected to the back side of the injection seat (1), the front side end of the limit seat (501) is fixedly connected to a first connecting block (502), the front side of the injection seat (1) is fixedly connected to a second connecting block (504), the inner side of the first connecting block (502) is threadedly connected to a hand-tightening bolt (503), and the threaded end of the hand-tightening bolt (503) passes through the first connecting block (502) and the second connecting block (504) for insertion.

6. The micro-plastic surgery filler syringe according to claim 5, characterized in that: A screw hole (11) is provided on the inner side of the first connection block (502), and the hand-tightening bolt (503) is threadedly connected to the inner side of the screw hole (11). An insertion hole (10) is provided on the inner side of the second connection block (504), and the threaded end of the hand-tightening bolt (503) is threadedly inserted into the screw hole (11) and the insertion hole (10).

7. The micro-plastic surgery filler syringe according to claim 1, characterized in that: A handle (6) is fixedly mounted on the lower end of the injection seat (1), and a finger groove (7) is provided on one side of the handle (6).

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