Hydro-visual needle injection needle head

Abstract

The utility model relates to the technical field of medical instruments, in particular to a hydro-optical needle injection needle which comprises a shell, a butt joint groove is formed in the shell, a needle assembly is in butt joint in the butt joint groove, the upper end of the needle assembly is connected with a flow dividing assembly, a sealing assembly is arranged on the outer side of the flow dividing assembly, and the upper end of the flow dividing assembly is connected with a needle tube butt joint piece. A connecting ring is arranged on the outer side of the needle tube butt joint piece, the connecting ring is in butt joint with the end of the needle head shell in a matched mode, the upper end of the shell is cylindrical, the upper end of the butt joint groove is cylindrical, and the lower end of the butt joint groove is rectangular; compared with a comparison case, the needle head has the advantages that the sealing performance of the interior of the needle head can be guaranteed when the needle head is used for injection, and injection liquid is prevented from seeping out.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a water light injection needle. Background Art

[0002] Water injection is to inject hyaluronic acid into the depressions of the skin to stimulate the skin to produce new collagen and maintain the dynamic balance of subcutaneous collagen in the injection site for a long time. It can effectively eliminate various causes of facial skin, such as skin aging problems caused by wrinkles and depressions.

[0003] The Chinese utility model patent with patent application number "202122666548.8" and titled "A Nine-needle Water-light Injection Needle" discloses "including a needle seat, a diverter seat, a syringe connecting seat and a needle tube, the needle seat includes a lower needle fixing part and an upper shell part, the lower needle fixing part is provided with nine through needle positioning channels, each needle positioning channel is matched with a needle tube one by one, the syringe connecting seat is fixed on the diverter seat, and the diverter seat is evenly distributed with needle positioning holes that correspond to the needle tubes one by one, and a diverter channel connecting the needle positioning holes and the syringe connecting seat. The tip of the needle tube extends out of the front port of the needle positioning channel, and the tail end of the needle tube passes through the needle positioning channel and is inserted into the needle positioning hole. The diverter seat plug is installed in the upper shell part of the needle seat and fixed by fixing glue. "In this patent application, the diverter seat, upper shell part and lower diverter plate are all set to a rectangular shape, resulting in poor internal sealing performance of the injection head during the water-light needle injection, and the injection liquid is easy to seep out.

[0004] Therefore, a water light injection needle is needed to improve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a water light needle injection needle to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A water-light needle injection needle comprises a shell, a docking groove is provided inside the shell, a needle assembly is docked in the docking groove, the upper end of the needle assembly is connected to a shunt assembly, a sealing assembly is arranged on the outside of the shunt assembly, the upper end of the shunt assembly is connected to a needle tube docking piece, a connecting ring is arranged on the outside of the needle tube docking piece, the connecting ring is docked with the end of the needle shell, the upper end of the shell is cylindrical, the upper end of the docking groove is cylindrical, the lower end of the docking groove is rectangular, the shunt assembly comprises a cylindrical shunt piece and a lower shunt plate, the cylindrical shunt piece is docked with the cylindrical docking groove at the upper end of the docking groove, and the lower shunt plate is docked with the rectangular docking groove at the lower end of the docking groove.

[0008] As a preferred solution of the utility model, the sealing assembly includes a plurality of sealing grooves a opened on the outside of the cylindrical diverter and a sealing groove b opened on the outside of the lower diverter plate, and a sealing ring is arranged inside each of the sealing grooves a and b.

[0009] As a preferred solution of the utility model, a diverter plate docking groove is provided at the upper end of the cylindrical diverter piece, a diverter hole is provided inside the diverter plate docking groove that passes through the cylindrical diverter piece and the sealing groove b, an upper diverter plate is docked in the diverter plate docking groove, and the upper diverter plate is fixedly connected to the needle tube docking piece.

[0010] As a preferred solution of the utility model, the needle assembly includes a plurality of needle tubes connected to the diversion holes.

[0011] As a preferred solution of the utility model, the needle tube docking piece includes a threaded column, the outer side of the threaded column is provided with threads, and the end of the threaded column is fixedly connected to the docking end.

[0012] As a preferred solution of the utility model, a threaded hole is opened in the middle of the connecting ring, the connecting ring is threadedly connected to the threaded column, a plurality of limiting protrusions are arranged inside the connecting ring, and a convex strip is arranged on the outer side of the upper end of the outer shell, and the protrusion and the convex strip are limitedly engaged when docked.

[0013] As a preferred solution of the utility model, a threaded hole is opened in the middle of the connecting ring, the connecting ring is threadedly connected to the threaded column, a plurality of limiting protrusions are arranged inside the connecting ring, and a convex strip is arranged on the outer side of the upper end of the outer shell, and the protrusion and the convex strip are limitedly engaged when docked.

[0014] As a preferred solution of the utility model, a negative pressure docking end is provided on one side of the lower end of the shell, the negative pressure docking end is communicated with the inside of the groove and the end of the negative pressure docking end is connected to a negative pressure generator through a conduit.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model arranges a cylindrical diverter at the upper end of the docking groove, and cooperates with the cylindrical design and the sealing component during docking to achieve a better overall sealing effect. Compared with the comparative case, it can ensure the sealing of the inside of the needle during injection and avoid leakage of the injection liquid. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model without the protective cover;

[0019] Figure 3 This is an exploded view from the first perspective of the present utility model;

[0020] Figure 4 This is an exploded view from a second perspective of the present invention;

[0021] Figure 5 This is an exploded view of the utility model from a third perspective.

[0022] In the figure: housing 1, threaded column 2, connecting ring 3, docking end 4, protective cover 5, negative pressure docking end 6, needle seat 7, docking groove 8, cylindrical diverter 9, upper diverter plate 10, diverter plate docking groove 11, sealing groove b12, sealing groove a13, lower diverter plate 14, needle tube 15. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant. Several embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] See also Figure 1-5 , the utility model provides a technical solution:

[0028] For example, please refer to Figure 1 , 2, 3, 4 and 5, a water-light needle injection needle, including a shell 1, a docking groove 8 is opened inside the shell 1, a needle assembly is docked in the docking groove 8, the needle assembly includes a plurality of needle tubes 15 docked with the diversion hole, the upper end of the needle assembly is connected to the diversion assembly, a sealing assembly is arranged on the outside of the diversion assembly, the upper end of the diversion assembly is connected to the needle tube docking piece, a connecting ring 3 is arranged on the outside of the needle tube docking piece, the connecting ring 3 is docked with the end of the needle shell, the upper end of the shell 1 is cylindrical, the upper end of the docking groove 8 is cylindrical, the lower end of the docking groove 8 is rectangular, the diversion assembly includes a cylindrical diverter 9 and a lower diverter plate 14, the cylindrical diverter 9 is docked with the cylindrical docking groove at the upper end of the docking groove 8, and the lower diverter plate 14 is docked with the rectangular docking groove at the lower end of the docking groove 8.

[0029] The upper end of the docking groove 8 is cylindrical, and a cylindrical diverter is also provided. When docking, in conjunction with a sealing assembly, the cylindrical docking structure has better overall sealing performance than the rectangular docking structure of the prior art, and can reduce the seepage of the injection liquid during injection.

[0030] Please refer to Figure 1 , 2 and 3, the sealing assembly includes a plurality of sealing grooves a13 opened on the outside of the cylindrical diverter 9 and a sealing groove b12 opened on the outside of the lower diverter plate 14, and a sealing ring is arranged inside each sealing groove a13 and each sealing groove b12.

[0031] Please refer to Figure 1 , 2 and 3, a diverter plate docking groove 11 is provided at the upper end of the cylindrical diverter 9, a diverter hole is provided inside the diverter plate docking groove 11 penetrating the cylindrical diverter 9 and the sealing groove b12, an upper diverter plate 10 is docked in the diverter plate docking groove 11, and the upper diverter plate 10 is fixedly connected to the needle tube docking piece.

[0032] The needle tube docking piece includes a threaded column 2, the outer side of the threaded column 2 is provided with a thread, the end of the threaded column 2 is fixedly connected to the docking end 4, a threaded hole is opened in the middle of the connecting ring 3, the connecting ring 3 is threadedly connected to the threaded column 2, a plurality of limiting protrusions are arranged inside the connecting ring 3, and a convex strip is arranged on the outer side of the upper end of the shell 1, and the protrusion and the convex strip are limitedly engaged when docking.

[0033] During docking, the limiting protrusion inside the connecting ring 3 is limitedly engaged with the protruding strip outside the outer shell 1 to ensure the stability of the connection between the connecting ring 3 and the outer shell 1.

[0034] A groove is provided at the lower end of the shell 1, and a plurality of needle seats 7 corresponding to the positions of the needle tubes 15 are arranged in the groove. A protective cover 5 is plugged and connected to the outer side of the shell 1. A negative pressure docking terminal 6 is provided on one side of the lower end of the shell 1. The negative pressure docking terminal 6 is connected to the inside of the groove, and the end of the negative pressure docking terminal 6 is connected to a negative pressure generator through a catheter.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water light needle injection needle, comprising a shell (1), a docking groove (8) is provided inside the shell (1), a needle assembly is docked in the docking groove (8), the upper end of the needle assembly is connected to a shunt assembly, a sealing assembly is arranged on the outside of the shunt assembly, the upper end of the shunt assembly is connected to a needle tube docking piece, a connecting ring (3) is arranged on the outside of the needle tube docking piece, and the connecting ring (3) is docked with the end of the needle shell, characterized in that: The upper end of the housing (1) is cylindrical, the upper end of the docking groove (8) is cylindrical, and the lower end of the docking groove (8) is rectangular. The flow splitter assembly comprises a cylindrical flow splitter (9) and a lower flow splitter plate (14). The cylindrical flow splitter (9) is docked with the cylindrical docking groove at the upper end of the docking groove (8), and the lower flow splitter plate (14) is docked with the rectangular docking groove at the lower end of the docking groove (8).

2. The water light injection needle according to claim 1, characterized in that: The sealing assembly comprises a plurality of sealing grooves a (13) opened on the outside of the cylindrical flow divider (9) and a sealing groove b (12) opened on the outside of the lower flow divider plate (14), and a sealing ring is arranged inside each of the sealing grooves a (13) and the sealing grooves b (12).

3. The water light injection needle according to claim 2, characterized in that: A diverter plate docking groove (11) is provided at the upper end of the cylindrical diverter member (9), a diverter hole is provided inside the diverter plate docking groove (11) penetrating the cylindrical diverter member (9) and the sealing groove b (12), an upper diverter plate (10) is docked inside the diverter plate docking groove (11), and the upper diverter plate (10) is fixedly connected to the needle tube docking member.

4. The water light injection needle according to claim 3, characterized in that: The needle assembly comprises a plurality of needle tubes (15) connected to the diversion holes.

5. The water light injection needle according to any one of claims 1 to 4, characterized in that: The needle tube docking piece comprises a threaded column (2), the outer side of the threaded column (2) is provided with threads, and the end of the threaded column (2) is fixedly connected to a docking end (4).

6. The water light injection needle according to claim 5, characterized in that: A threaded hole is provided in the middle of the connecting ring (3), the connecting ring (3) is threadedly connected to the threaded column (2), a plurality of limiting protrusions are provided inside the connecting ring (3), and a convex strip is provided on the outer side of the upper end of the outer shell (1), and the protrusions and the convex strip are limitedly engaged when mated.

7. The water light injection needle according to claim 4, characterized in that: The lower end of the shell (1) is provided with a groove, in which a plurality of needle seats (7) corresponding to the positions of the needle tubes (15) are arranged, and the outer side of the shell (1) is plugged and connected with a protective cover (5).

8. The water light injection needle according to claim 7, characterized in that: A negative pressure docking end (6) is provided at one side of the lower end of the housing (1); the negative pressure docking end (6) is communicated with the interior of the groove, and the end of the negative pressure docking end (6) is connected to a negative pressure generator via a conduit.

Images