Hydrophobic needle

Abstract

The utility model discloses a hydrotherapy needle. The hydrotherapy needle comprises a needle seat, a needle cap and a needle body, one end of the needle seat is sunken to form a mounting groove, and the other end of the needle seat is provided with a liquid inlet communicated with the mounting groove; the needle cap is embedded into the mounting groove and is partially attached to the end, away from the liquid inlet, of the needle base, and a flow guide channel is defined between the needle cap and the needle base; the needle body is suitable for being fixed through the needle base and / or the needle cap, a fluid channel is formed in the needle body, the needle body is partially located in the flow guide channel, and fluid is suitable for entering from the liquid inlet, flowing through the flow guide channel and finally flowing out of the needle body through the fluid channel. According to the technical scheme, the problem that the needle body and the liquid inlet are not smoothly communicated easily in the liquid injection process of an existing hydrotherapy needle is solved, and the treatment effect of medical cosmetology is improved.

Description

Technical Field

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

[0002] Aqueous needles are widely used in the medical beauty industry. A fluid channel is formed inside the needle body of the aqueous needle. One end of the aqueous needle is inserted into the skin, and then hyaluronic acid and other therapeutic fluids are injected into the skin through the fluid channel, thereby achieving the purpose of cosmetic treatment.

[0003] Existing hyaluronic acid needles are generally provided with a liquid inlet, which is connected to the fluid channels of multiple needle bodies, and the treatment liquid is injected into different needle bodies through the liquid inlet. During the injection process, it is easy for some needle bodies to be poorly connected to the liquid inlet, resulting in a deviation between the injection volume of the needle body and the set value, affecting the treatment effect of medical cosmetology. Utility Model Content

[0004] The main purpose of the utility model is to provide a water light needle, aiming to solve the problem of unsmooth liquid injection in the needle body of the existing water light needle.

[0005] To achieve the above-mentioned purpose, the utility model provides an hyaluronic acid needle, comprising a needle seat, a needle cap and a needle body; one end of the needle seat is recessed to form a mounting groove, and the other end of the needle seat is provided with a liquid inlet connected to the mounting groove; the needle cap is embedded in the mounting groove and fits with the end of the needle seat away from the liquid inlet, and a guide channel is formed between the needle cap and the needle seat; the needle body is suitable for being fixed by the needle seat and / or the needle cap, a fluid channel is formed in the needle body, and the needle body is partially located in the guide channel, and the fluid is suitable for entering from the liquid inlet, flowing through the guide channel respectively, and finally flowing out of the needle body through the fluid channel.

[0006] In one embodiment of the utility model, the guide channel includes a first branch channel and a second branch channel, the first branch channel and the second branch channel are arranged in a divergent shape with the liquid inlet as the center, and the needle body is located in the first branch channel or the second branch channel.

[0007] In one embodiment of the present invention, the length of the first branch channel along the horizontal direction is greater than the length of the second branch channel along the horizontal direction, and the angle between the bottom surface of the first branch channel and the horizontal direction is smaller than the angle between the bottom surface of the second branch channel and the horizontal direction.

[0008] In an embodiment of the present invention, there are a plurality of needle bodies, and each of the needle bodies abuts against a bottom surface portion of the first branch channel or the second branch channel, respectively.

[0009] In an embodiment of the present invention, the length of the first branch channel along the horizontal direction is equal to the length of the second branch channel along the horizontal direction.

[0010] In an embodiment of the present utility model, a first stopper is provided on the needle seat, the first stopper is located in the diversion channel, and one end of the needle body facing the diversion channel partially abuts against the first stopper.

[0011] In an embodiment of the present invention, the side wall of the diversion channel is an inclined surface, and the needle body abuts against a portion of the side wall of the diversion channel.

[0012] In an embodiment of the present invention, the end surface of the needle body facing the diversion channel is an inclined surface, the bottom surface of the diversion channel is a horizontal surface, and the end surface of the needle body partially abuts against the bottom surface of the diversion channel.

[0013] In one embodiment of the utility model, a first groove is formed at one end of the needle seat close to the mounting groove, the first groove is located at the bottom surface of the mounting groove, the needle cap abuts against the needle seat, and the first groove of the needle seat and the needle cap enclose to form the guide channel.

[0014] In one embodiment of the utility model, a second groove is formed at one end of the needle cap facing the mounting groove, the needle cap abuts against the needle seat, and the bottom surface of the mounting groove of the needle seat and the second groove of the needle cap are enclosed to form the guide channel.

[0015] In one embodiment of the utility model, a liquid inlet portion is further provided at the end of the needle seat away from the mounting groove, a liquid inlet channel is formed in the liquid inlet portion, the liquid inlet port is located at the end of the liquid inlet channel away from the mounting groove, and the liquid inlet channel is respectively connected to the guide channel and the liquid inlet port.

[0016] In one embodiment of the utility model, a plurality of first needle grooves are formed between the needle cap and the mounting groove of the needle seat. The plurality of first needle grooves are in a rectangular or circular array and are arranged in sequence at intervals. The plurality of first needle grooves are all connected to the guide channel. The number of the needle bodies matches the number of the first needle grooves, and each of the needle bodies is inserted in one of the first needle grooves.

[0017] In one embodiment of the utility model, a positioning column is provided on the needle seat, and the positioning column is located in the mounting groove. A positioning hole is opened on the needle cap. The positioning column and the hole wall of the positioning hole form a second needle groove, and the second needle groove is located at the center of the mounting groove, and the needle body is inserted in the second needle groove.

[0018] In one embodiment of the utility model, a second stopper is provided on the needle seat, the second stopper is located in the second needle groove, the needle body partially abuts against the second stopper, and the liquid inlet area of ​​the second needle groove is smaller than the liquid inlet area of ​​the first needle groove.

[0019] In an embodiment of the present invention, the abutment point between the needle body and the bottom surface of the first needle groove and the abutment point between the needle body and the bottom surface of the second needle groove are located on the same plane.

[0020] In an embodiment of the utility model, a plurality of the second needle grooves are formed on the positioning column, and the plurality of the second needle grooves are all extended along the extension direction of the positioning column. A plurality of the needle bodies are provided, and one of the needle bodies is inserted into one of the second needle grooves.

[0021] In an embodiment of the present utility model, a plurality of positioning posts are disposed on the needle seat, a plurality of positioning holes are opened on the needle cap, and each positioning post and a hole wall of the positioning hole are combined to form a second needle groove.

[0022] The water light needle proposed in the technical solution of the utility model includes a needle seat, a needle cap and a needle body, wherein one end of the needle seat is recessed with a mounting groove, and the other end is provided with a liquid inlet connected to the mounting groove. The needle cap is arranged in the mounting groove, and the needle cap and the needle seat are enclosed to form a guide channel connected to the liquid inlet, so that the treatment liquid can flow into each guide channel through the liquid inlet. At the same time, the needle body is fixed by the needle cap and the needle groove, and the needle body is partially located in the guide channel, so that the fluid channel inside the needle body is connected to the guide channel, and at the same time, it is ensured that there is enough gap between the needle body and the guide channel, thereby ensuring that the treatment liquid can smoothly enter the fluid channel in the needle body from the guide channel, solving the problem that part of the needle body is not smoothly connected to the liquid inlet during the injection process of the existing water light needle, resulting in a deviation between the injection amount of the needle body and the set value, and improving the treatment effect of medical cosmetology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 It is a top view of the water light needle of the utility model;

[0025] Figure 2 for Figure 1 Cross-sectional view of the hyaluronic acid needle along AA;

[0026] Figure 3 This is an exploded view of the water light needle of the utility model;

[0027] Figure 4 This is an exploded view of the needle seat and needle cap in the water light needle of the utility model;

[0028] Figure 5 This is a structural schematic diagram of an embodiment of a needle holder in an aqua-lightening needle of the utility model;

[0029] Figure 6 for Figure 5 Cross-sectional view of the needle holder along BB;

[0030] Figure 7 for Figure 6 A partial enlarged schematic diagram of the needle seat at position C;

[0031] Figure 8 This is a structural schematic diagram of another embodiment of the needle holder in the water light needle of the utility model;

[0032] Fig. 9 It is a structural schematic diagram of an embodiment of the utility model after the needle seat and the needle cap in the water light needle are matched.

[0033] Description of Figure Numbers:

[0034] Label name Label name 1 Water light needle 151 Second stopper 10 Needle Seat 16 Second needle groove 11 Mounting slot 20 Needle cap 12 Liquid inlet 21 Positioning hole 121 Liquid inlet channel 30 Needle 122 Liquid inlet 31 Fluid Channel 13 Diversion channel 40 shell 131 The first branch channel 41 Guide 132 The second branch channel 411 Guide hole 14 First needle groove 42 Negative pressure interface 141 Avoidance slot 50 Adjustment parts 15 Positioning column

[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. The meanings of "and / or" and "and / or" appearing in the full text are the same, both indicating that three parallel solutions are included. Taking "A and / or B as an example", it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0040] The utility model provides a water light needle 1.

[0041] Combination Figure 1-Figure 3 As shown, in one embodiment of the utility model, the hyaluronic acid needle 1 includes a needle seat 10, a needle cap 20 and a needle body 30; one end of the needle seat 10 is recessed to form a mounting groove 11, and the other end of the needle seat 10 is provided with a liquid inlet 122 connected to the mounting groove 11; the needle cap 20 is embedded in the mounting groove 11, and is partially fitted with an end of the needle seat 10 away from the liquid inlet 122, and a guide channel 13 is formed between the needle cap 20 and the needle seat 10; the needle body 30 is suitable for being fixed by the needle seat 10 and / or the needle cap 20, a fluid channel 31 is formed in the needle body 30, and the needle body 30 is partially located in the guide channel 13, and the fluid is suitable for entering from the liquid inlet 122, flowing through the guide channel 13 respectively, and finally flowing out of the needle body 30 through the fluid channel 31.

[0042] In this embodiment, when the water light needle 1 is used to inject the therapeutic fluid into the treatment object, the therapeutic fluid enters from the liquid inlet 122 and flows out to the outside of the needle body 30 through the fluid channel 31 inside the needle body 30. Therefore, it is necessary to ensure that the fluid channel 31 inside the needle body 30 is connected to the liquid inlet 122 smoothly. Therefore, the needle cap 20 is embedded in the installation groove 11 and fits with the bottom of the installation groove 11, so that the needle cap 20 and the needle seat 10 enclose a guide channel 13. By partially arranging the needle body 30 in the guide channel 13, that is, there is a gap between the needle body 30 and the bottom surface of the guide channel 13 or the needle body 30 is partially in contact with the bottom surface of the guide channel 13, the fluid channel 31 inside the needle body 30 and the guide channel 13 are connected smoothly.

[0043] Compared with the method in which the needle body 30 abuts against the bottom of the mounting groove 11, and the therapeutic fluid flows directly from the bottom of the mounting groove 11 into the needle groove 14, the guide channel 13 provided in the present application increases the circulation space of the therapeutic fluid, and improves the convenience and smoothness of the therapeutic fluid flowing into the needle body 30, thereby avoiding the problem that during the injection process, the end face of part of the needle body 30 is completely in contact with the bottom of the mounting groove 11 or the contact area is too large, causing the needle body 30 to be blocked or the injection is not smooth, thereby reducing the deviation between the injection amount of each needle body 30 and the set value, and improving the therapeutic effect of the hyaluronic acid needle 1.

[0044] Combination Figure 5 As shown, in one embodiment of the present invention, the guide channel 13 includes a first branch channel 131 and a second branch channel 132. The first branch channel 131 and the second branch channel 132 are arranged in a divergent shape with the liquid inlet 122 as the center, and the needle body 30 is partially located in the first branch channel 131 or the second branch channel 132.

[0045] In this embodiment, the liquid inlet 122 is arranged at the center of the needle seat 10, and the first branch channel 131 and the second branch channel 132 are arranged around the center of the liquid inlet 122. At the same time, the diversion channel 13 is designed to be straight, the width of the channel is the same, and the angles between the diversion channels 13 are the same, so that the flow rate from the liquid inlet 122 to each diversion channel 13 is the same, that is, the flow rate of the treatment fluid in the first branch channel 131 and the second branch channel 132 is the same, so that the needle body 30 has the same treatment effect regardless of whether it is arranged in the first branch channel 131 or the second branch channel 132. In other embodiments, the size of the first branch channel 131 can also be designed to be different from that of the second branch channel 132. As long as the design of cosmetic treatment of the above-mentioned treatment object can be achieved, it belongs to the protection scope of this application.

[0046] Please continue to refer to Figure 5In one embodiment of the present invention, the length of the first branch channel 131 along the horizontal direction is greater than the length of the second branch channel 132 along the horizontal direction, and the angle between the bottom surface of the first branch channel 131 and the horizontal direction is smaller than the angle between the bottom surface of the second branch channel 132 and the horizontal direction.

[0047] In this embodiment, the length of the first branch channel 131 is designed to be greater than the length of the second branch channel 132, so that the water light needle 1 can achieve treatment of different positions by installing the needle body 30 in different diversion channels 13. At the same time, in order to ensure that the injection time of diversion channels 13 of different lengths is the same or close, the bottom surface inclination of the first branch channel 131 with a longer length is designed to be greater than the bottom surface inclination of the second branch channel 132. The first branch channel 131 has a smaller slope, smaller resistance in the horizontal direction, and the solution is easier to pass through. The second branch channel 132 has a larger slope, greater resistance in the horizontal direction, and the solution is relatively difficult to pass through. Therefore, the length of the first branch channel 131 is designed to be greater than the length of the second branch channel 132, so that the time for the treatment liquid to flow from the liquid inlet 122 through the first branch channel 131 to the needle body is the same or close to the time for the treatment liquid to flow from the second branch channel 132 to the needle body. Therefore, before treatment, the injection and exhaust of different branch channels and the inside of the needle body 30 can be completed simultaneously, so as to achieve the purpose of discharging liquid from multiple needle bodies 30 at the same time and reduce the waste of treatment liquid.

[0048] Furthermore, the bottom surfaces of the first branch channel 131 and the second branch channel 132 are both arranged to have an angle with the horizontal direction, that is, the bottom surfaces of the first branch channel 131 and the second branch channel 132 are designed to be inclined surfaces, so that when the needle body 30 abuts against the guide channel 13, there is a certain gap between the end surface of the needle body 30 and the bottom surface of the guide channel 13, thereby further improving the smoothness of the treatment fluid entering the fluid channel 31 inside the needle body 30.

[0049] Combination Figure 2 and Figure 3 As shown, in one embodiment of the present invention, there are a plurality of needle bodies 30 , and each needle body 30 abuts against the bottom surface of the first branch channel 131 or the second branch channel 132 .

[0050] In this embodiment, multiple needle bodies 30 are provided so that the water light needle 1 can simultaneously perform cosmetic treatment on multiple points of the treatment surface of the treatment object, thereby improving the treatment efficiency of the water light needle 1. Multiple first branch channels 131 and second branch channels 132 are provided respectively, and each diversion channel 13 corresponds to a fluid channel 31 connected to the inside of a needle body 30, and the needle body 30 abuts against the bottom surface of the diversion channel 13, so that the treatment fluid has a high degree of smoothness when flowing from the diversion channel 13 to multiple needle bodies 30. For example, when the needle bodies 30 are designed to be a 3x3 array, the needle body 30 located at the center of the array is directly connected to the liquid inlet channel 121, and the needle bodies 30 located around the array are respectively connected to the first branch channel 131 and the second branch channel 132, and the first branch channel 131 and the second branch channel 132 are arranged in turn, and the angle between the adjacent first branch channels 131 and the second branch channel 132 is 45 degrees, so that the multiple diversion channels 13 are arranged in a cross shape, thereby forming a 3x3 array of needle bodies 30.

[0051] Combination Figure 8 As shown, in one embodiment of the present invention, the length of the first branch channel 131 along the horizontal direction is equal to the length of the second branch channel 132 along the horizontal direction.

[0052] In this embodiment, the lengths of the first branch channel 131 and the second branch channel 132 can also be designed to be equal, so that the time for the treatment fluid to flow to each needle body 30 is also close, so that the amount of fluid discharged from each needle body 30 is the same and the time of discharge is close. The cross-sectional shape of the needle holder 10 provided with the first branch channel 131 and the second branch channel 132 can be rectangular, circular, etc., so as to be used in conjunction with different treatment positions of the treatment object, thereby improving the applicability of the water light needle 1. When the shape is circular, the first branch channel 131 and the second branch channel 132 are arranged at intervals around the center of the circle; when the shape is rectangular, the first branch channel 131 and the second branch channel 132 can be arranged in a cross shape.

[0053] Combination Figure 7 As shown, in one embodiment of the present invention, a first stopper is provided on the needle seat 10 , and the first stopper is located in the guide channel 13 , and one end of the needle body 30 facing the guide channel 13 partially abuts against the first stopper.

[0054] In this embodiment, the first stopper is located on the side wall of the diversion channel 13 and is extended along the radial direction thereof. The first stopper can be arranged around the side wall of the diversion channel 13 or on part of the side wall of the diversion channel 13, so that after the needle body 30 is inserted into the diversion channel 13, the end of the needle body 30 abuts against the first stopper, and at the same time, the first stopper cannot block the fluid channel 31 inside the needle body 30, so that the treatment fluid can flow smoothly from the diversion channel 13 to the fluid channel 31. It can be understood that when multiple diversion channels 13 and multiple needle bodies 30 are provided, the heights of the first stoppers provided on the side walls of the multiple diversion channels 13 should be the same. After each needle body 30 abuts against a first stopper, the contact area between the first stopper and the needle body 30 is the same, thereby satisfying that the flow rate of the treatment fluid in each needle body 30 is the same, thereby improving the uniformity of the treatment effects of the multiple needle bodies 30 of the water light needle 1. At the same time, the first stoppers protruding from the plurality of diversion channels 13 should be at the same level to ensure that the extended lengths of each needle body 30 are the same, thereby ensuring that the needle bodies 30 are inserted into the treatment object to the same depth.

[0055] Please continue to refer to Figure 7 In one embodiment of the present invention, the side wall of the diversion channel 13 is an inclined surface, and the needle body 30 abuts against a portion of the side wall of the diversion channel 13 .

[0056] In this embodiment, the side wall of the guide channel 13 is set to be an inclined surface so that the cross-sectional size of the guide channel 13 gradually decreases from the top to the bottom, that is, the guide channel 13 is contracted from top to bottom, so that when one end of the needle body 30 is inserted into the guide channel 13, the needle body 30 abuts against the side wall of the guide channel 13, thereby preventing the needle body 30 from continuing to be inserted toward the bottom of the guide channel 13, so that there is a sufficiently large gap between the needle body 30 and the bottom of the guide channel 13, so that the treatment fluid can flow from the guide channel 13 to the inside of the needle body 30.

[0057] In one embodiment of the present invention, the end surface of the needle body 30 facing the guide channel 13 is an inclined surface, the bottom surface of the guide channel 13 is a horizontal surface, and the end surface of the needle body 30 partially abuts against the bottom surface of the guide channel 13 .

[0058] In this embodiment, the end surface of the needle body 30 facing the guide channel 13 is designed as an inclined surface, and the bottom surface of the guide channel 13 is designed as a horizontal surface, so that a certain size of gap can be formed between the end surface of the needle body 30 and the guide channel 13. In other embodiments, the end surface of the needle body 30 facing the guide channel 13 and the bottom surface of the guide channel 13 can also be designed as inclined surfaces, but the inclination angles of the two abutting inclined surfaces must be different to satisfy the requirement that a gap can be formed between the two.

[0059] Combination Figure 2As shown, in one embodiment of the present invention, a first groove is opened at one end of the needle seat 10 close to the mounting groove 11, and the first groove is located at the bottom surface of the mounting groove 11. The needle cap 20 abuts against the needle seat 10, and the first groove of the needle seat 10 and the needle cap 20 enclose to form a guide channel 13.

[0060] In this embodiment, a first groove is provided at the bottom of the mounting groove 11, and the side of the needle cap 20 facing the needle seat 10 is a plane. After the needle cap 20 is inserted into the mounting groove 11, the needle cap 20 abuts against the end surface of the needle seat 10 provided with the first groove, so that the end surface of the needle cap 20 facing the first groove and the first groove are enclosed to form a guide channel 13. It can be understood that the treatment fluid flows in the first groove, and the end surface of the needle cap 20 covers the first groove, which plays a role in limiting the treatment fluid from flowing into the gap between the bottom of the mounting groove 11 and the needle cap 20, thereby avoiding waste of the treatment fluid.

[0061] In one embodiment of the present invention, a second groove is formed at one end of the needle cap 20 facing the mounting groove 11 , and the needle cap 20 abuts against the needle seat 10 . The bottom surface of the mounting groove 11 of the needle seat 10 and the second groove of the needle cap 20 are combined to form a guide channel 13 .

[0062] In this embodiment, the bottom of the installation groove 11 is a plane, and the end surface of the needle cap 20 facing the installation groove 11 is provided with a second groove, so that the guide channel 13 is formed by the second groove and the bottom surface of the installation groove 11. It can be understood that whether the first groove is provided on the needle seat 10 or the second groove is provided on the needle cap 20, the position accuracy and size accuracy of the guide channel 13 are related to the processing accuracy of the needle seat 10 or the needle cap 20, and the assembly accuracy of the needle seat 10 and the needle cap 20 will not affect the guide channel 13. Therefore, both designs can improve the position accuracy of the guide channel 13, so that the flow rate and flow rate of the treatment fluid in the guide channel 13 are the same or similar to the preset value.

[0063] Combination Figure 2-Figure 4 As shown, in one embodiment of the utility model, a liquid inlet portion 12 is further provided at the end of the needle seat 10 away from the mounting groove 11, and a liquid inlet channel 121 is formed in the liquid inlet portion 12. The liquid inlet port 122 is located at the end of the liquid inlet channel 121 away from the mounting groove 11, and the liquid inlet channel 121 is respectively connected to the guide channel 13 and the liquid inlet port 122.

[0064] In this embodiment, a liquid inlet 12 is protruding from one end of the needle seat 10 away from the mounting groove 11, and the shape of the liquid inlet 12 can be cylindrical, rectangular, etc. A liquid inlet channel 121 with two openings at both ends is formed inside the liquid inlet 12, wherein the opening at one end facing the mounting groove 11 is connected to the mounting groove 11, and the other end opening is a liquid inlet 122, which is used to connect to the injection tube so that the treatment liquid can enter from the liquid inlet 122. Since the shape of the injection tube is mostly cylindrical, the shape of the liquid inlet channel 121 can be designed to be cylindrical, so that the liquid inlet 121 can be connected to the injection tube.

[0065] Please continue to refer to Figure 2-Figure 4 In one embodiment of the utility model, a plurality of first needle grooves 14 are formed between the needle cap 20 and the mounting groove 11 of the needle seat 10. The plurality of first needle grooves 14 are in a rectangular or circular array and are arranged in sequence at intervals. The plurality of first needle grooves 14 are all connected to the guide channel 13. The number of needle bodies 30 matches the number of first needle grooves 14, and each needle body 30 is inserted into a first needle groove 14.

[0066] In this embodiment, a plurality of avoidance grooves 141 may be provided on the outer peripheral side of the needle cap 20. When the needle cap 20 is inserted into the mounting groove 11, the needle seat 10 and the avoidance grooves 141 are combined to form a plurality of first needle grooves 14. A plurality of avoidance grooves 141 may also be provided on the groove wall of the mounting groove 11. When the needle cap 20 is inserted into the mounting groove 11, the needle cap 20 and the avoidance grooves 141 are combined to form a plurality of first needle grooves 14. A plurality of avoidance grooves 141 may also be provided on the outer peripheral side of the needle cap 20 and the side wall of the mounting groove 11. In this case, the first needle groove 14 is formed by the avoidance grooves 141 on the needle cap 20 and the avoidance grooves 141 on the needle seat 10. The shapes of the needle seat 10 and the needle cap 20 may be designed to be circular, rectangular, etc., so the plurality of first needle grooves 14 are also arranged in a rectangular or circular array. At the same time, the first needle groove 14 is communicated with the guide channel 13 , so that after the needle body 30 is inserted into the first needle groove 14 , the treatment fluid can smoothly flow from the guide channel 13 into the needle body 30 .

[0067] Combination Figure 4-Figure 7 As shown, in one embodiment of the utility model, a positioning column 15 is provided on the needle seat 10, and the positioning column 15 is located in the mounting groove 11. A positioning hole 21 is opened on the needle cap 20. The positioning column 15 and the hole wall of the positioning hole 21 are surrounded to form a second needle groove 16, and the second needle groove 16 is located at the center of the mounting groove 11, and the needle body 30 is inserted in the second needle groove 16.

[0068] In this embodiment, the positioning column 15 can be set at the center of the installation groove 11 and communicate with the liquid inlet channel 121. The cross-sectional shape of the positioning column 15 is semicircular, and the cross-sectional shape of the positioning hole 21 is also semicircular, so that after the positioning column 15 is inserted into the positioning hole 21, the positioning column 15 and the hole wall of the positioning hole 21 enclose to form a second needle groove 16; the shapes of the positioning column 15 and the positioning hole 21 can also be designed to be elliptical, rectangular, etc., as long as the two can cooperate to form the second needle groove 16, they all belong to the protection scope of this application. The second needle groove 16 is located in the middle of the needle seat 10, that is, the middle of the needle seat 10 is also inserted with a needle body 30. It can be seen from the above embodiment that the multiple first needle grooves 14 are all located on the peripheral side of the needle seat 10. In this embodiment, the second needle groove 16 is also provided in the center of the needle seat 10, thereby improving the density and uniformity of the needle body 30 provided in the water light needle 1. At the same time, the positioning hole 21 and the positioning column 15 cooperate with each other to improve the assembly accuracy and convenience of the needle cap 20 and the needle seat 10.

[0069] In one embodiment of the utility model, a second stopper 151 is provided on the needle seat 10, and the second stopper 151 is located in the second needle groove 16. The needle body 30 partially abuts against the second stopper 151, and the liquid inlet end area of ​​the second needle groove 16 is smaller than the liquid inlet end area of ​​the first needle groove 14.

[0070] In this embodiment, the second needle groove 16 is arranged at the center of the needle seat 10 and is connected to the liquid inlet channel 121, so a second stopper 151 is arranged in the second needle groove 16 to limit the needle body 30. At the same time, the second stopper 151 contacts the end surface of the needle body 30, thereby ensuring the communication between the fluid channel 31 inside the needle body 30 and the liquid inlet channel 121. Since the second needle groove 16 located at the center of the needle seat 10 is closer to the liquid inlet channel 121, and the first needle groove 14 located around the needle seat 10 is farther from the liquid inlet channel 121, in order to ensure that the liquid inlet time of multiple needle bodies 30 is the same and avoid waste of therapeutic fluid, the cross-sectional area of ​​the liquid inlet end of the second needle groove 16 is designed to be smaller than the cross-sectional area of ​​the liquid inlet end of the first needle groove 14, so that the time for the therapeutic fluid to pass through the second needle groove 16 and the fluid channel 31 inside the needle body 30 from the liquid inlet channel 121 to the top of the needle body 30 is the same or similar to the time for the therapeutic fluid to pass through the first needle groove 14 and the fluid channel 31 inside the needle body 30 from the liquid inlet channel 121 to the top of the needle body 30, thereby reducing the waste of therapeutic fluid.

[0071] In one embodiment of the present invention, the abutment portion between the needle body 30 and the bottom surface of the first needle groove 14 and the abutment portion between the needle body 30 and the bottom surface of the second needle groove 16 are located on the same plane.

[0072] In this embodiment, after the needle body 30 is inserted into the first needle groove 14 and the second needle groove 16 respectively, it abuts against the bottom surfaces of the first needle groove 14 and the second needle groove 16. If the first needle groove 14 and the second needle groove 16 are provided with the first stopper 151, then the heights of the first stopper 151 should be the same at this time; if the needle body 30 abuts against the side wall of the guide channel 13, then the design angles of the side walls of the guide channel 13 should be the same at this time, so that the end of the needle body 30 facing the liquid inlet 122 is at the same horizontal height, and then the needle body 30 can use the same height specification, which can meet the requirement that the depth of multiple needle bodies 30 inserted into the skin is the same, thereby improving production convenience and reducing structural costs.

[0073] In one embodiment of the utility model, a plurality of second needle grooves 16 are formed on the positioning column 15 , and the plurality of second needle grooves 16 are all extended along the extending direction of the positioning column 15 . A plurality of needle bodies 30 are provided, and one needle body 30 is inserted into one second needle groove 16 .

[0074] In this embodiment, the shape of the positioning column 15 can be rectangular, circular, etc. It can be seen from the above embodiments that the first needle grooves 14 are arranged around the needle seat 10, and each first needle groove 14 is connected to the liquid inlet through the first branch channel 131 or the second branch channel 132. On this basis, a plurality of second needle grooves 16 are provided on the positioning column 15, so that the needle body 30 can be designed into an array of 3 times 3, 4 times 4, and 5 times 5. It is only necessary to arrange a corresponding number of first needle grooves 14 around the array and a corresponding number of second needle grooves 16 in the middle of the array. The needle body 30 arranged in the array improves the uniformity of treatment. At the same time, each guide channel 13 connected to the first needle groove 14 and the second needle groove 16 is designed to be straight. Compared with the curved guide channel 13, the straight guide channel 13 can improve the smoothness of the flow of the treatment liquid, and is also convenient for molding and processing, and reduces the structural production cost. Since the lengths of the guide channels 13 connecting the needles at different positions in the array are different, the inclination angle of the longer guide channel 13 is designed to be smaller than the inclination angle of the shorter guide channel 13, or blocks of different sizes are set inside the first needle groove 14 and the second needle groove 16 to make the injection time of each needle body the same or similar.

[0075] In an embodiment of the present invention, a plurality of positioning posts 15 are disposed on the needle seat 10 , a plurality of positioning holes 21 are formed on the needle cap 20 , and each positioning post 15 and a hole wall of a positioning hole 21 are combined to form a second needle groove 16 .

[0076] In this embodiment, a plurality of positioning posts 15 are provided on the needle seat 10, and each positioning post 15 is connected to a second needle groove 16 on the hole wall of a positioning hole 21. By providing different numbers of positioning posts 15, it is possible to achieve different arrays of needle bodies 30, thereby achieving the technical effects described in the above embodiments. The number, position and size of the positioning holes 21 provided on the needle cap 20 correspond to the positioning posts 15. In the case of providing multiple second needle grooves 16, the assembly accuracy of the needle cap 20 and the needle seat 10 is also improved. In other embodiments, the second needle groove 16 can also be formed by the positioning post 15 alone, and there are multiple positioning posts 15, and each positioning post 15 has a second needle groove 16 inside, which can also achieve the above effects, and no further description is given here.

[0077] In one embodiment of the utility model, the water light needle 1 can also be provided with a shell 40 and an adjusting member 50, and the shell 40 is covered on the outside of the needle seat 10 and the needle body 30 to protect the needle body 30. At the same time, a guide part 41 can be provided inside the shell 40, and a guide hole 411 is provided in the guide part 41, so that the end of the needle body 30 away from the needle seat 10 is inserted into the guide hole 411, which plays a role of limiting and guiding the needle body 30. A negative pressure interface 42 is also provided on one side of the shell 40, and the negative pressure interface 42 is connected to the cavity inside the shell 40 to suck the treatment object tightly and reduce the influence of the surface depression on the depth of the needle when the needle body 30 is inserted into the treatment object. The needle body 30 is extended or retracted by the adjusting member 50, so that it is convenient for the operator to adjust the depth of the water light needle 1 inserted into the treatment object, thereby improving the treatment effect. At the same time, a liquid inlet 122 is provided at the end of the needle seat 10 away from the mounting groove 11. The liquid inlet 122 is connected to the solution channel inside the needle body 30. The needle tube filled with injection liquid is connected to the liquid inlet 122. The injection liquid passes through the liquid inlet 122 and the needle body 30 in turn and is finally injected into the treatment object, thereby improving the convenience of operation.

[0078] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A water light needle, characterized in that: include: A needle seat, one end of which is recessed to form a mounting groove, and the other end of which is provided with a liquid inlet connected to the mounting groove; A needle cap, which is embedded in the mounting groove and fits with an end of the needle seat away from the liquid inlet, and a guide channel is formed between the needle cap and the needle seat; as well as The needle body is suitable for being fixed by the needle seat and / or the needle cap, a fluid channel is formed in the needle body, the needle body is partially located in the guide channel, and the fluid is suitable for entering from the liquid inlet, flowing through the guide channel respectively, and finally flowing out of the needle body through the fluid channel.

2. The water light needle according to claim 1, characterized in that: The guide channel includes a first branch channel and a second branch channel. The first branch channel and the second branch channel are arranged in a divergent shape with the liquid inlet as the center. The needle body is located in the first branch channel or the second branch channel.

3. The water light needle according to claim 2, characterized in that: The length of the first branch channel along the horizontal direction is greater than the length of the second branch channel along the horizontal direction, and the angle between the bottom surface of the first branch channel and the horizontal direction is smaller than the angle between the bottom surface of the second branch channel and the horizontal direction.

4. The water light needle according to claim 3, characterized in that: There are a plurality of needle bodies, and each of the needle bodies abuts against a bottom surface portion of the first branch channel or the second branch channel.

5. The water light needle according to claim 2, characterized in that: The length of the first branch channel along the horizontal direction is equal to the length of the second branch channel along the horizontal direction.

6. The water light needle according to claim 1, characterized in that: The needle seat is provided with a first stopper, the first stopper is located in the diversion channel, and one end of the needle body facing the diversion channel partially abuts against the first stopper.

7. The water light needle according to claim 1, characterized in that: The side wall of the flow guiding channel is an inclined surface, and the needle body abuts against a portion of the side wall of the flow guiding channel.

8. The water light needle according to claim 1, characterized in that: The end surface of the needle body facing the diversion channel is an inclined surface, the bottom surface of the diversion channel is a horizontal surface, and the end surface of the needle body partially abuts against the bottom surface of the diversion channel.

9. The water light needle according to any one of claims 1 to 8, characterized in that: A first groove is formed at one end of the needle seat close to the mounting groove. The first groove is located at the bottom surface of the mounting groove. The needle cap abuts against the needle seat. The first groove of the needle seat and the needle cap are combined to form the guide channel.

10. The water light needle according to any one of claims 1 to 8, characterized in that: A second groove is formed at one end of the needle cap facing the mounting groove, the needle cap abuts against the needle seat, and the bottom surface of the mounting groove of the needle seat and the second groove of the needle cap are enclosed to form the guide channel.

11. The water light needle according to any one of claims 1 to 8, characterized in that: The needle seat is further provided with a liquid inlet portion at one end away from the mounting groove, a liquid inlet channel is formed in the liquid inlet portion, the liquid inlet port is located at one end of the liquid inlet channel away from the mounting groove, and the liquid inlet channel is respectively connected with the guide channel and the liquid inlet port.

12. The water light needle according to any one of claims 1 to 8, characterized in that: The needle cap and the mounting groove of the needle seat enclose a plurality of first needle grooves, which are in a rectangular or circular array and are arranged in sequence at intervals. The plurality of first needle grooves are all connected to the guide channel, the number of the needle bodies matches the number of the first needle grooves, and each of the needle bodies is inserted in one of the first needle grooves.

13. The water light needle according to claim 12, characterized in that: The needle seat is provided with a positioning column, the positioning column is located in the installation groove, the needle cap is provided with a positioning hole, the positioning column and the hole wall of the positioning hole are combined to form a second needle groove, and the second needle groove is located at the center of the installation groove, and the needle body is inserted in the second needle groove.

14. The water light needle according to claim 13, characterized in that: The needle seat is provided with a second stopper, the second stopper is located in the second needle groove, the needle body partially abuts against the second stopper, and the liquid inlet end area of ​​the second needle groove is smaller than the liquid inlet end area of ​​the first needle groove.

15. The water light needle according to claim 13, characterized in that: The abutment point between the needle body and the bottom surface of the first needle groove and the abutment point between the needle body and the bottom surface of the second needle groove are located on the same plane.

16. The water light needle according to claim 13, characterized in that: The positioning column is provided with a plurality of the second needle grooves, and the plurality of the second needle grooves are all extended along the extending direction of the positioning column. The needle bodies are provided with a plurality of needle bodies, and one needle body is inserted into one of the second needle grooves.

17. The water light needle according to claim 13, characterized in that: The needle seat is provided with a plurality of positioning posts, the needle cap is provided with a plurality of positioning holes, and each positioning post and a hole wall of a positioning hole are combined to form a second needle groove.

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