Preparation device

Abstract

The utility model relates to the technical field of preparation devices, and discloses a preparation device which comprises two injectors, a fixing assembly and a liquid spraying assembly, each injector comprises a barrel, and the opening end of each barrel extends outwards to form a flange; the fixing assembly comprises a frame body, a through hole is formed in the frame body, a buckling groove is formed in the side wall, located at the through hole, of the frame body, and a limiting piece is arranged on the frame body; the liquid spraying assembly comprises a liquid spraying connecting base, a liquid medicine inlet and a liquid medicine outlet which are independent are formed in the liquid spraying connecting base, the liquid medicine inlet is used for being matched with a Luer head of a corresponding injector, and the liquid spraying connecting base is fixed to the frame body through a reinforcing piece. Through the arrangement of the catching groove, the flange and the limiting piece, the flange is clamped into the catching groove and limited through the limiting piece, then the injector can be fixedly installed in the frame body well, and when the liquid spraying assembly is installed on the injector on the frame body, the injector is not prone to circumferential rotation; and the spray group assembly is more convenient to mount on the injector.

Description

Technical Field

[0001] This utility model relates to the field of dispensing device technology, and more specifically, to a dispensing device. Background Technology

[0002] Currently, syringes are widely used in clinical practice for dissolving and preparing medications to avoid direct contact between the solution and external air during transfer. The syringes used clinically are mainly single-barrel syringes and double mixers. When it is necessary to immediately mix two liquid medications to achieve a suitable therapeutic effect, such as when some hemostatic adhesives or tissue blocking adhesives are formed by the reaction of two components, the viscosity of the solution increases rapidly after mixing, requiring immediate application; otherwise, it is difficult to effectively apply it to the target site. In such cases, a double mixer must be used.

[0003] Currently, commonly used dual-component mixing devices on the market mainly consist of a syringe, a dual-component frame, and a flow guide component. The two-component solution flows into the flow guide component through the syringe via the pushing action of the syringe, and is mixed and discharged through the nozzle. In actual installation, the existing flow guide component is connected to the Luer head of the syringe via a Luer thread. However, the existing syringe is not well fixed on the dual-component frame, and it lacks circumferential fixation of the syringe on the dual-component frame. This makes it easy for the syringe to rotate when the flow guide component is installed on the syringe, resulting in inconvenience in the connection between the two. Therefore, it needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a dispensing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dispensing device includes two syringes and a fixing assembly for fixing one end of the two syringes, and a spraying assembly for fixing the other end of the two syringes and dispensing liquid mixture from the two syringes. The syringes include a barrel and a push rod that performs piston movement within the barrel, and the open end of the barrel extends outward to form a flange.

[0007] The fixing component includes a frame with a through hole for the corresponding syringe to pass through, a snap groove for the flange to be engaged on the side wall of the frame at the through hole, and a sliding limiter for limiting the flange within the snap groove on the frame between the two syringes.

[0008] The spray assembly includes a spray connector, which has two independent liquid inlets and a liquid outlet connected to the two liquid inlets. The liquid inlets are adapted to the Luer head of the corresponding syringe. The spray connector is fixed to the frame by a fastener.

[0009] Furthermore, the frame body is provided with an installation cavity, and the side wall of the frame body located at the through hole is provided with a sliding groove that communicates with the installation cavity;

[0010] The limiting component includes a mounting block disposed in the mounting cavity, a column extending out of the sliding groove on the mounting block, a pressure plate for limiting the flange in the latching groove at the extended end of the column, and a driving component for driving the mounting block to move relative to each other in the mounting cavity.

[0011] Furthermore, the mounting blocks are provided with protrusions on opposite sidewalls, and the protrusions are provided with mounting cavities with openings facing the opposite sides of the mounting blocks. The mounting cavities are provided with springs for driving the mounting blocks to move closer to each other, and the opposite ends of the protrusions are provided with guide slopes.

[0012] The driving component includes a driving block that is slidably disposed in the mounting cavity. The driving block has extrusion slopes on both sides that cooperate with the corresponding guide slopes. The driving block moves into the mounting cavity to drive the extrusion slopes to extrude the guide slopes so that the mounting blocks move away from each other.

[0013] Furthermore, the drive block is rotatably provided with a threaded rod with one end threaded out of the mounting cavity.

[0014] Furthermore, a fixed cylinder is provided on the end face of the drive block, and a first protruding ring is provided on the inner side wall of the fixed cylinder along its axial direction. The other end of the threaded rod extends into the fixed cylinder, and the other end of the threaded rod is provided with an annular groove for the first protruding ring to be engaged.

[0015] Furthermore, a hand-tightening cap is provided at one end of the threaded rod.

[0016] Furthermore, the reinforcement includes a plug hole provided on the frame, and a concave annular groove is provided on the inner wall of the plug hole along its circumference. The reinforcement also includes a plug tube provided on the liquid spraying connector and capable of extending into the plug hole, and a second convex ring is provided on the side wall of the plug tube that can be engaged in the concave annular groove.

[0017] Furthermore, gap grooves are evenly distributed along the circumference of the side wall of the plug tube.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, through the setting of the groove, flange and limiting member, allows the flange to be inserted into the groove and the limiting member to limit it, thereby better fixing the syringe in the frame body. When the spraying assembly is installed on the syringe on the frame body, the syringe is not easy to rotate circumferentially, making the installation of the spraying assembly on the syringe more convenient.

[0020] 2. In this utility model, by setting the reinforcement, the liquid spraying component can be further fixedly installed on the frame when it is installed on the syringe, thereby making the liquid spraying component more secure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a dispensing device according to the present invention.

[0022] Figure 2 This is an exploded structural diagram of a dispensing device according to the present invention.

[0023] Figure 3 This is one of the structural schematic diagrams of the fixing component in this utility model.

[0024] Figure 4 This is the second structural schematic diagram of the fixing component in this utility model.

[0025] Figure 5 This is a schematic diagram of the limiting component and the driving component in this utility model.

[0026] Figure 6 This is a partial cross-sectional view of the fixing component in this utility model.

[0027] Figure 7 This is a cross-sectional view of the fixing component in this utility model.

[0028] Figure 8 This is a schematic diagram of the liquid spraying assembly in this utility model.

[0029] The labels in the diagram represent the following: 10, syringe; 20, frame; 30, spray connector; 31, drug inlet; 32, drug outlet; 40, push plate;

[0030] 201. Snap-fit ​​groove; 210. Cylinder body; 211. Luer head; 212. Flange; 220. Push rod; 221. Pressing part; 231. Horizontal part; 232. Vertical part;

[0031] 301. Through hole; 302. Snap groove; 303. Arc groove; 310. Blocking plate;

[0032] 401. Mounting cavity; 402. Sliding groove; 410. Mounting block; 411. Pressure plate; 420. Drive block; 421. Threaded rod;

[0033] 501. Hand-tightening cap; 502. Fixing cylinder; 503. Annular groove; 504. Extrusion bevel; 510. Protrusion part; 511. Guide bevel; 520. Spring component;

[0034] 701, Insertion hole; 702, Recessed annular groove; 810, Insertion sleeve; 811, Second convex ring. Detailed Implementation

[0035] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0036] The following is in conjunction with the appendix Figures 1-8 This embodiment will be described in further detail.

[0037] like Figure 1-2 As shown, a dispensing device in this embodiment includes two syringes 10 and a fixing assembly for fixing one end of the two syringes 10. It also includes a spraying assembly for fixing the other end of the two syringes 10 and dispensing liquid mixture from the two syringes 10. The syringe 10 includes a cylinder 210 for storing liquid. The open end of the cylinder 210 extends outward to form a flange 212, and the other end forms a Luer head 211 for dispensing liquid from the cylinder 210. A push rod 220 is provided inside the cylinder 210, with one end extending from the open end and capable of piston movement.

[0038] The fixing assembly includes a frame 20, which has a through hole 301 for the corresponding syringe 10 to pass through. The side wall of the frame 20 at the through hole 301 has a snap groove 302 for the flange 212 to be engaged. The frame 20 located between the two syringes 10 has a sliding limiting member for limiting the flange 212 within the snap groove 302.

[0039] The spray assembly includes a spray connector 30, which has two independent liquid inlets 31 and a liquid outlet 32 ​​connected to the two liquid inlets 31. The liquid inlets 31 are adapted to the Luer head 211 of the corresponding syringe 10. The spray connector 30 is fixed to the frame 20 by a fastener.

[0040] In this embodiment, the frame 20 is T-shaped, and in actual use, as... Figure 3 As shown, its interior is recessed to form a cavity to achieve a lightweight design of the frame 20; specifically, the frame 20 includes a horizontal part 231 and a vertical part 232 perpendicular to the horizontal part 231, wherein through holes 301 are disposed opposite to each other on the horizontal part 231, and arc-shaped grooves 303 adapted to the corresponding through holes 301 are formed on the two side walls of the vertical part 232, thereby allowing the syringe 10 to pass through the through holes 301 so that the side wall of the syringe 10 fits against the side wall of the arc-shaped groove 303, thereby fixing the syringe 10 on the frame 20;

[0041] In actual use, the slot 302 is adapted to the flange 212. When the flange 212 of the syringe 10 is engaged in the corresponding slot 302, the syringe 10 is supported on the frame 20 so that the syringe 10 cannot rotate circumferentially and is preferably fixed on the frame 20.

[0042] The limiting member is designed to better limit the flange 212, preventing it from dislodging from the slot 302 and thus improving the fixation of the syringe 10 on the frame 20. In actual use, to facilitate the assembly of the syringe 10 on the frame 20, the limiting member is moved relative to the slot 302 or away from it, so that the flange 212 can be engaged in the slot 302.

[0043] Specifically, the spray connector 30 is provided with two parallel flow channels. One end of each flow channel is connected to the corresponding liquid inlet 31, and the other end of each flow channel is connected to the liquid outlet 32. The liquid inlet 31 is connected to the Luer head 211 of the corresponding syringe 10 so that the spray assembly is fixedly connected to the two syringes 10. At this time, pushing the push rod 220 can make the liquid in the two syringes 10 enter the flow channel through the liquid inlet 31, mix in the liquid outlet 32 ​​and flow out, so as to realize the preparation of mixed liquid.

[0044] In actual use, in order to improve the fixing effect of the spray connector 30 at the other end of the two syringes 10, in this embodiment, the reinforcement is set so that the reinforcement can fix the spray connector 30 on the frame 20, thereby improving the fixing effect of the spray assembly.

[0045] In this embodiment, in order to synchronously drive the push rod 220 so that the liquid in the two syringes 10 flows out synchronously, a push plate 40 is also included. The push plate 40 is provided with a snap-fit ​​groove 201. The end of the push rod 220 located outside the cylinder 210 forms a pressing part 221. The pressing part 221 can be snapped into the corresponding snap-fit ​​groove 201 to fix the push plate 40 between the protruding ends of the push rods 220 of the two syringes 10. In this way, by applying a pushing force through the push plate 40, the push rods 220 of the two syringes 10 can move the same distance, thereby pushing out an equal amount of liquid for preparing the medicine solution.

[0046] Combination Figure 4-5 As shown, in this embodiment, the frame 20 is provided with an installation cavity 401, and the side wall of the frame 20 located at the through hole 301 is provided with a sliding groove 402 that communicates with the installation cavity 401.

[0047] The limiting component includes a mounting block 410 disposed relative to the mounting cavity 401. The mounting block 410 is provided with a column extending out of the sliding groove 402. The extended end of the column is provided with a pressure plate 411 for limiting the flange 212 within the buckle groove 302. The mounting cavity 401 is provided with a driving component for driving the mounting block 410 to move relative to each other.

[0048] In actual use, the opening of the mounting cavity 401 faces the horizontal portion 231, and a blocking plate 310 is provided at the opening to install the limiting member and the driving member within the mounting cavity 401. A sliding groove 402 is disposed opposite to the blocking plate 310, extending along the horizontal portion 231. This structure allows the driving member to drive the mounting blocks 410 away from each other, and the column to drive the pressure plates 411 away from each other, allowing the pressure plates 411 to extend into the corresponding snap-fit ​​grooves 302. This confines the flange 212 on the cylinder 210 within the corresponding snap-fit ​​grooves 302, thus enabling the syringe 10 to be mounted on the frame 20. When the driving member drives the mounting blocks 410 closer together, the column can drive the pressure plates 411 closer together, disengaging them from the corresponding snap-fit ​​grooves 302, facilitating the snap-fit ​​and placement of the flange 212 within the snap-fit ​​grooves 302.

[0049] In this embodiment, protrusions 510 are provided on opposite sidewalls of mounting blocks 410. The protrusions 510 have mounting cavities 401 with openings facing the opposite sides of mounting blocks 410. The mounting cavities 401 have springs 520 for driving mounting blocks 410 to move closer to each other. Guide slopes 511 are provided at opposite ends of the protrusions 510.

[0050] The driving component includes a driving block 420 that is slidably disposed in the mounting cavity 401. The driving block 420 has a pressing slope 504 on both sides that cooperates with the corresponding guide slope 511. The driving block 420 moves into the mounting cavity 401 to drive the pressing slope 504 to press the guide slope 511 so that the mounting blocks 410 move away from each other.

[0051] In this embodiment, the spring 520 is a plastic spring, which is installed in the corresponding mounting cavity 401 so that it can drive the mounting blocks 410 to move closer to each other, thereby driving the pressure plate 411 to disengage from the corresponding latching groove 302.

[0052] The drive block 420 is slidably installed in the mounting cavity 401, so that when the drive block 420 moves into the mounting cavity 401 during actual use, the extrusion slope 504 extrudes the guide slope 511 to make the mounting blocks 410 move away from each other, and drives the pressure plate 411 to move towards the latching groove 302, so as to realize the fixed installation of the syringe 10 on the frame 20.

[0053] In this embodiment, the drive block 420 is rotatably provided with a threaded rod 421 with one end threaded out of the mounting cavity 401.

[0054] In this embodiment, the threaded rod 421 can be extended and retracted within the mounting cavity 401 by rotating it, thereby enabling the drive block 420 to move within the mounting cavity 401, and thus achieving relative movement of the pressure plate 411.

[0055] Specifically, in order to facilitate the operator to rotate the threaded rod 421, a hand-tightening cap 501 is provided at one end of the threaded rod 421.

[0056] In this embodiment, in order to realize the rotational installation of the threaded rod 421 on the drive block 420, a fixed cylinder 502 is provided on the end face of the drive block 420. A first protruding ring is provided on the inner side wall of the fixed cylinder 502 along its axial direction. The other end of the threaded rod 421 extends into the fixed cylinder 502. The other end of the threaded rod 421 is provided with an annular groove 503 for the first protruding ring to be engaged.

[0057] In this embodiment, by using an interference fit to make the first convex ring engage in the annular groove 503, the other end of the threaded rod 421 can be rotated and installed on one side wall of the drive block 420.

[0058] Combination Figure 7 and Figure 8 As shown, in this embodiment, the reinforcement includes a plug hole 701 provided on the frame 20, and a concave annular groove 702 is provided on the inner wall of the plug hole 701 along its circumference. The reinforcement also includes a plug tube 810 provided on the liquid spraying connector 30 and capable of extending into the plug hole 701. A second convex ring 811 is provided on the side wall of the plug tube 810 and can be inserted into the concave annular groove 702.

[0059] Through the construction in this embodiment, the second convex ring 811 is inserted into the concave ring groove 702 by interference fit, thereby allowing the plug-in tube 810 to be snapped into the plug-in hole 701, so as to realize the fixed installation of the liquid spraying connector 30 on the frame 20.

[0060] In actual use, in order to facilitate the deformation of the plug-in cylinder 810 so that the second convex ring 811 can be inserted into the concave ring groove 702 through an interference fit, in this embodiment, gap grooves are evenly distributed along the circumference of the side wall of the plug-in cylinder 810. Through the gap grooves, the plug-in cylinder 810 can deform inward, so that the second convex ring 811 can move along the plug-in hole 701 and be inserted into the concave ring groove 702.

[0061] During assembly, the syringe 10 is fitted with an injection needle via the Luer head 211. The injection needle is then inserted into different medicine vials. The solution is drawn into the syringe 10 via the push rod 220. Next, the threaded rod 421 is rotated to bring the pressure plates 411 closer together. At this point, the syringe 10 is passed through the corresponding through hole 301, and the flange 212 is engaged in the corresponding locking groove 302. Then, the threaded rod 421 is rotated to move the pressure plates 411 away from each other, allowing them to extend to the corresponding locking groove 302 opposite the flange. 212 is used to limit the position, so as to better realize the assembly of the syringe 10 on the frame 20; then the injection needle on the syringe 10 is removed, the liquid spraying assembly is installed on the Luer head 211 of the syringe 10, and is inserted into the insertion hole 701 through the insertion tube 810 to further realize the assembly of the liquid spraying assembly on the frame 20; finally, the push plate 40 is snapped onto the two push rods 220, and the solution in the two syringes 10 can be mixed and sprayed out by pushing the push plate 40.

[0062] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A dispensing device comprising two syringes (10) and a fixing assembly for fixing one end of the two syringes (10), and further comprising a spraying assembly for fixing the other end of the two syringes (10) and dispensing liquid mixture from the two syringes (10), characterized in that: The syringe (10) comprises a barrel (210) and a push rod (220) performing piston movement in the barrel (210), and an open end of the barrel (210) extends outward to form a flange (212); The fixing assembly comprises a frame (20), the frame (20) is provided with a through hole (301) for allowing the corresponding syringe (10) to pass through, a clamping groove (302) for clamping the flange (212) is arranged on the side wall of the frame (20) at the through hole (301), and a limiting piece that is slidable and used for limiting the flange (212) in the clamping groove (302) is arranged on the frame (20) between the two syringes (10); The liquid injection assembly comprises a liquid injection connecting seat (30), the liquid injection connecting seat (30) is provided with two independent liquid inlets (31) and a liquid outlet (32) in communication with the two liquid inlets (31), the liquid inlets (31) are used for being matched with the luer heads (211) of the corresponding syringes (10), and the liquid injection connecting seat (30) is fixed on the frame (20) through a reinforcing piece.

2. A dispenser according to claim 1, characterised in that: The frame (20) is provided with a mounting cavity (401), and the side wall of the frame (20) at the through hole (301) is provided with a sliding groove (402) in communication with the mounting cavity (401) in a relative manner; The limiting piece comprises a mounting block (410) arranged in the mounting cavity (401) in a relative manner, the mounting block (410) is provided with a stand column extending out of the sliding groove (402), the extending end of the stand column is provided with a pressing plate (411) used for limiting the flange (212) in the clamping groove (302), and the mounting cavity (401) is provided with a driving piece used for driving the mounting block (410) to move in a relative manner.

3. A dispenser according to claim 2, characterised in that: The opposite side walls of the mounting block (410) are provided with a protruding block portion (510) in a relative manner, the protruding block portion (510) is provided with a mounting cavity (401) with an opening facing away from the side faces of the mounting block (410), the mounting cavity (401) is provided with a spring piece (520) used for driving the mounting block (410) to move close to each other, and opposite end portions of the protruding block portion (510) are provided with guide inclined surfaces (511) in a relative manner; The driving piece comprises a driving block (420) slidingly arranged in the mounting cavity (401), the two sides of the driving block (420) are provided with extrusion inclined surfaces (504) matched with the guide inclined surfaces (511) in a corresponding manner, and the driving block (420) moves in the mounting cavity (401) to drive the extrusion inclined surfaces (504) to extrude the guide inclined surfaces (511), so that the mounting block (410) moves away from each other.

4. A dispenser according to claim 3, characterised in that: A threaded rod (421) is rotationally arranged on the driving block (420), and one end of the threaded rod (421) extends out of the mounting cavity (401).

5. A dispenser according to claim 4, characterised in that: A fixing cylinder (502) is arranged on the end face of the driving block (420), a first protruding ring is arranged on the inner side wall of the fixing cylinder (502) in an axial direction, the other end of the threaded rod (421) extends into the fixing cylinder (502), and the other end of the threaded rod (421) is provided with an annular groove (503) used for clamping the first protruding ring.

6. A dispenser according to claim 4, characterised in that: One end of the threaded rod (421) is provided with a hand screw cap (501).

7. The dispenser of claim 1, wherein: The reinforcing member comprises a plug hole (701) arranged on the frame (20), and a concave ring groove (702) is arranged on the inner wall of the plug hole (701) along the circumference of the plug hole (701); the reinforcing member further comprises a plug barrel (810) arranged on the liquid injection connecting seat (30) and capable of extending into the plug hole (701), and a second convex ring (811) is arranged on the side wall of the plug barrel (810) and capable of being clamped into the concave ring groove (702).

8. A dispenser according to claim 7, characterised in that: The side wall of the plug barrel (810) is uniformly provided with gap grooves along the circumference of the plug barrel (810).

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