Water-light injection device for large-area injection

Abstract

The utility model relates to a water-light injection device for large-area injection, which belongs to the field of medical instruments and comprises a clamping seat with adjustable clamping width, and the clamping seat comprises a left clamping block and a right clamping block which can slide relatively; a plurality of pin header seats are sequentially installed between the left clamping block and the right clamping block from left to right, pin header assemblies are arranged in the pin header seats, pin heads of the pin header assemblies extend out of the bottoms of the pin header seats, and the two ends of the pin header assemblies in the length direction extend out of the front side wall and the rear side wall of the pin header seats and are communicated with liquid medicine injection equipment. The needle header assembly has the advantages that the number of the needle header seats can be freely increased or decreased in the clamping seat during water-light injection, the needle header assembly is suitable for skin positions with different injection areas, injection efficiency is improved, the two sides of the needle header assembly are communicated with liquid medicine injection equipment, and it is guaranteed that internal injection pressure is uniform, and the injection effect is controllable.

Description

Technical Field

[0001] The utility model relates to the field of medical appliances, in particular to a water light injection device for large-area injection. Background Art

[0002] Water injection is a cosmetic method that injects hyaluronic acid directly into the patient's skin to improve the patient's skin condition. In the prior art, a "water gun" is usually used for injection. The injection needle of the water gun is a 9-needle matrix, which is mainly used in small surgical areas such as the face.

[0003] When facing a large surgical area, such as the trunk, limbs, etc., the existing needle injection area is small, the injection efficiency is low, and it is inconvenient to use.

[0004] There is an urgent need for a water light injection device that can handle large-area injection. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a water light injection device capable of handling large-area injection.

[0006] The utility model solves the above technical problems with the following technical solutions: A water light injection device for large-area injection includes a clamping seat with adjustable clamping width, wherein the clamping seat includes a left clamping block and a right clamping block that can slide relative to each other;

[0007] A plurality of needle row seats are installed between the left clamping block and the right clamping block from left to right, and a needle row assembly is arranged in the needle row seat. The needle head of the needle row assembly extends out from the bottom of the needle row seat, and the two ends of the needle row assembly in the length direction extend out from the front and rear side walls of the needle row seat and are connected to the liquid medicine injection device.

[0008] The beneficial effects of the utility model are: when performing hyaluronic acid injection, the number of needle seats can be freely increased or decreased in the clamping seat, which is suitable for skin positions with different injection areas, thereby improving the injection efficiency; both sides of the needle assembly are connected to the liquid medicine injection device to ensure uniform internal injection pressure and controllable injection effect.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the needle row assembly includes a needle row block, a first cavity is formed inside the needle row block, a plurality of needles are fixedly connected to the bottom surface of the needle row block in sequence along the length direction, and the needles are connected to the first cavity;

[0011] Both ends of the needle row block in the length direction are fixedly connected with a liquid medicine interface seat, one end of the two liquid medicine interface seats is connected to the first cavity, and the other ends extend from the front and rear side walls of the needle row seat and are connected to the liquid medicine injection device.

[0012] The beneficial effect of adopting the above further scheme is that the medicine liquid enters the first cavity through the medicine liquid interface seat and then flows out from the needle. The medicine liquid interface seats at both ends are respectively connected to the medicine liquid injection equipment, and medicine is injected on both sides at the same time to ensure uniform internal pressure.

[0013] Furthermore, a second cavity is provided in the needle header, and the needle header block is slidably located in the second cavity, and the sliding direction of the needle header block is perpendicular to the bottom surface of the needle header;

[0014] A negative pressure groove is provided on the bottom surface of the needle row seat, and the negative pressure groove is connected to the negative pressure device. A needle tube corresponding to the needle is fixed in the negative pressure groove, and the needle tube is connected to the second cavity. The needle is slidably located in the needle tube and can extend out of the needle row seat from the needle tube.

[0015] The beneficial effect of adopting the above further scheme is that the negative pressure tank and the skin are attached to form a chamber, the negative pressure device draws out the air in the chamber, forming a negative pressure environment to suck the skin, making it easier to inject, and the movement of the needle block drives the needle to extend or retract.

[0016] Furthermore, a ring platform is fixedly connected to the top surface of the needle row seat, a through hole is opened in the ring platform, the through hole is connected with the second cavity, and a knob disk is rotatably mounted on the ring platform;

[0017] A first threaded rod is fixedly connected to the top surface of the needle row block, one end of the first threaded rod passes through the through hole and extends out of the ring platform, and the first threaded rod is threadedly connected to the knob disk.

[0018] The beneficial effect of adopting the above further scheme is: turning the knob disk drives the first threaded rod to rotate, the first threaded rod drives the needle block to rise and fall, the needle extends out for injection, and the knob disk can accurately adjust the extension length of the needle.

[0019] Furthermore, a negative pressure interface hole is provided on the top surface of the needle row seat, the top end of the negative pressure interface hole is connected to the negative pressure device, and the other end of the negative pressure interface hole is connected to the negative pressure groove.

[0020] The beneficial effect of adopting the above further solution is that the negative pressure interface hole is connected to the negative pressure device, which makes it easy to extract negative pressure from the negative pressure tank.

[0021] Furthermore, a negative pressure connector seat is fixedly connected to the right clamping block, one end of the negative pressure connector seat is connected to the plurality of negative pressure interface holes through an air pipe, and the other end is connected to the negative pressure device.

[0022] The beneficial effect of adopting the above further solution is that the negative pressure connector seat performs flow diversion and simultaneously connects multiple negative pressure connector seats and negative pressure devices.

[0023] Furthermore, it also includes a first liquid medicine connector, one end of which is connected to the liquid medicine injection device, and the other end is connected to two second liquid medicine connectors through a pipeline. The two second liquid medicine connectors are respectively located at both ends of the needle row block and are connected to a plurality of liquid medicine interface seats.

[0024] The beneficial effect of adopting the above further solution is that the first liquid medicine connector and the second liquid medicine connector perform multiple diversions, and the second liquid medicine connector is connected to multiple liquid medicine interface seats at the same time, so that medicine can be injected on both sides of multiple needle blocks at the same time.

[0025] Furthermore, a first protrusion is fixedly connected to one side wall of the needle row seat, and a first groove is formed on the other opposite side wall, and the first protrusions of two adjacent needle row seats are slidably located in the first groove;

[0026] A second protrusion matched with the first groove is formed on the side wall of the left clamping block facing the needle header seat, and a second groove matched with the first protrusion is formed on the side wall of the right clamping block facing the needle header seat.

[0027] The beneficial effect of adopting the above further solution is that the needle seats are provided with a concave-convex mortise and tenon structure, which is convenient for mutual connection and also convenient for installation between the left clamping block and the right clamping block.

[0028] Further, an adjusting block is fixedly connected to one side wall of the right clamping block facing the left clamping block, an adjusting groove is provided on one side wall of the left clamping block facing the right clamping block, the length direction of the adjusting groove is perpendicular to the side wall where the adjusting block is located, and the adjusting block is slidably located in the adjusting groove;

[0029] A second threaded rod is also installed on the top surface of the left clamping block. An adjusting knob is fixedly connected to one end of the second threaded rod, and the other end passes through the left clamping block, extends into the adjusting slot and abuts against the side wall of the adjusting block.

[0030] The beneficial effect of adopting the above further solution is that the left clamping block and the right clamping block can be adjusted by relative sliding, and fixed by adjusting the knob, so as to facilitate the installation of different numbers of needle headers.

[0031] Furthermore, a handle is fixedly connected to the top of the left clamping block.

[0032] The beneficial effect of adopting the above further solution is that the handle is convenient for the staff to hold and use the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is an overall schematic diagram of the utility model;

[0034] Figure 2 This is a schematic diagram of a needle header of the utility model;

[0035] Figure 3It is a schematic diagram of the negative pressure tank of the utility model;

[0036] Figure 4 This is a schematic diagram of a pin header block of the present utility model;

[0037] Figure 5 This is a schematic diagram of the first cavity of the utility model;

[0038] Figure 6 This is a schematic diagram of the negative pressure interface hole of the utility model;

[0039] Figure 7 It is a schematic diagram of the left clamping block and the right clamping block of the utility model.

[0040] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0041] 1. Left clamping block; 2. Right clamping block; 3. Needle row seat; 4. Needle; 5. Needle row block; 6. First cavity; 7. Liquid medicine interface seat; 8. Second cavity; 9. Negative pressure groove; 10. Needle tube; 11. Ring platform; 12. Through hole; 13. Knob plate; 14. First threaded rod; 15. Negative pressure interface hole; 16. Negative pressure connector seat; 17. First liquid medicine connector; 18. Second liquid medicine connector; 19. First protrusion; 20. First groove; 21. Second protrusion; 22. Second groove; 23. Adjustment block; 24. Adjustment groove; 25. Second threaded rod; 26. Handle. DETAILED DESCRIPTION

[0042] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0043] Example 1

[0044] like Figures 1 to 3 As shown, a water light injection device for large-area injection includes a clamping seat with adjustable clamping width, and the clamping seat includes a left clamping block 1 and a right clamping block 2 that can slide relative to each other;

[0045] A plurality of needle row seats 3 are installed in sequence from left to right between the left clamping block 1 and the right clamping block 2. A needle row assembly is arranged in the needle row seat 3. The needle head 4 of the needle row assembly extends out from the bottom of the needle row seat 3. Both ends of the needle row assembly in the length direction extend out from the front and rear side walls of the needle row seat 3 and are connected to the liquid medicine injection device.

[0046] The beneficial effects of this embodiment are: when performing water light injection, by adjusting the relative distance between the left clamping block 1 and the right clamping block 2, the number of needle seats 3 can be freely increased or decreased in the clamping seat, which is suitable for skin positions with different injection areas and improves the injection efficiency;

[0047] If the size of the needle row seat 3 is simply increased, there will be a problem of uneven internal injection pressure. Therefore, both sides of the needle row assembly are connected to the liquid medicine injection device, and liquid medicine is injected into the interior at the same time to ensure uniform internal pressure and controllable injection effect.

[0048] Specifically, the number of the pin headers 3 can be at least one and at most four.

[0049] Example 2

[0050] like Figures 4 to 5 As shown, preferably, on the basis of embodiment 1, the needle assembly includes a needle block 5, a first cavity 6 is formed inside the needle block 5, a plurality of needles 4 are fixedly connected to the bottom surface of the needle block 5 in sequence along the length direction, and the needles 4 are connected to the first cavity 6;

[0051] Both ends of the needle row block 5 in the length direction are fixedly connected with a liquid medicine interface seat 7, one end of the two liquid medicine interface seats 7 is connected to the first cavity 6, and the other ends extend from the front and rear side walls of the needle row seat 3 and are connected to the liquid medicine injection device.

[0052] The beneficial effect of adopting the preferred scheme in the above embodiment is that the drug liquid enters the first cavity 6 from the drug liquid interface seat 7 and then flows out from the needle 4. The drug liquid interface seats 7 at both ends are respectively connected to the drug liquid injection equipment, and the drug is injected on both sides at the same time to ensure uniform internal pressure.

[0053] Specifically, the needle block 5 is in the shape of an elongated strip, and a plurality of needles 4 are fixedly connected in sequence along the length direction.

[0054] As a parallel technical solution of the above embodiment, the needle row block 5 may also be rectangular, and the needle heads 4 are arranged in a nine-square grid on the bottom surface of the needle row block 5 .

[0055] Example 3

[0056] like Figures 4 to 5 As shown, preferably, on the basis of Embodiment 1-2, a second cavity 8 is opened in the needle seat 3, the needle block 5 is slidably located in the second cavity 8, and the sliding direction of the needle block 5 is perpendicular to the bottom surface of the needle seat 3;

[0057] A negative pressure groove 9 is provided on the bottom surface of the needle row seat 3, and the negative pressure groove 9 is connected to the negative pressure device. A needle tube 10 corresponding to the needle 4 is fixed in the negative pressure groove 9, and the needle tube 10 is connected to the second cavity 8. The needle 4 is slidably located in the needle tube 10 and can extend out of the needle row seat 3 from the needle tube 10.

[0058] The beneficial effects of the preferred solution in the above embodiment are: the negative pressure tank 9 and the skin are attached to form a chamber, and the negative pressure device extracts the air in the chamber to form a negative pressure environment to absorb the skin, which is convenient for injection;

[0059] Then the needle block 5 can move up and down. When moving downward, it drives the needle 4 to extend out from the needle tube 10 for injection. When moving upward, it drives the needle 4 to be retracted into the needle tube 10.

[0060] Specifically, one end of the needle tube 10 is fixedly connected to the bottom of the negative pressure groove 9 , and the other end of the needle tube 10 is flush with the bottom surface of the needle seat 3 . In the initial state, the needle 4 is stored in the needle tube 10 .

[0061] Example 4

[0062] like Figures 4 to 5 As shown, preferably, on the basis of embodiments 1-3, a ring platform 11 is fixedly connected to the top surface of the needle seat 3, a through hole 12 is opened in the ring platform 11, the through hole 12 is connected to the second cavity 8, and a knob disk 13 is rotatably mounted on the ring platform 11;

[0063] A first threaded rod 14 is fixedly connected to the top surface of the needle row block 5 . One end of the first threaded rod 14 passes through the through hole 12 and extends out of the ring platform 11 . The first threaded rod 14 is threadedly connected to the knob disk 13 .

[0064] The beneficial effect of adopting the preferred solution in the above embodiment is: rotating the knob disk 13 drives the first threaded rod 14 to rotate, the first threaded rod 14 drives the needle block 5 to rise and fall, the needle 4 is extended for injection, and the knob disk 13 can accurately adjust the extension length of the needle 4.

[0065] Specifically, the negative pressure tank 9 and the skin are attached to form a chamber, and the negative pressure device extracts the air in the chamber to form a negative pressure environment to absorb the skin;

[0066] Then, the knob disk 13 is turned. The knob disk 13 is restricted on the ring stage 11 and can only rotate on its own. The knob disk 13 drives the first threaded rod 14 to rotate. The first threaded rod 14 should rotate with it, but the needle block 5 is restricted by the second cavity 8 and cannot rotate. Therefore, the rotational motion is converted into linear motion, realizing the up and down movement of the needle block 5, driving the needle 4 to extend out of the needle tube 10 or retract the needle tube 10.

[0067] As a parallel technical solution of the above embodiment, the first threaded rod 14 and the knob plate 13 may also be replaced by a hydraulic rod, one end of which is fixedly connected to the needle block 5 and the other end is connected to the hydraulic system, so as to push the needle block 5 up and down.

[0068] Example 5

[0069] like Figures 4 to 6 As shown, preferably, on the basis of embodiments 1-4, a negative pressure interface hole 15 is further provided on the top surface of the needle seat 3, the top end of the negative pressure interface hole 15 is connected to the negative pressure device, and the other end of the negative pressure interface hole 15 is connected to the negative pressure groove 9.

[0070] The beneficial effect of adopting the preferred solution in the above embodiment is that the negative pressure interface hole 15 is connected to the negative pressure equipment, which makes it easy to extract negative pressure from the negative pressure tank 9.

[0071] Example 6

[0072] like Figure 2 and Figure 6 As shown, preferably, on the basis of embodiments 1-5, a negative pressure connector seat 16 is fixedly connected to the right clamping block 2, one end of the negative pressure connector seat 16 is connected to the plurality of negative pressure interface holes 15 through an air pipe, and the other end is connected to the negative pressure device.

[0073] The beneficial effect of adopting the preferred solution in the above embodiment is that the negative pressure connector seat 16 performs flow diversion, and simultaneously connects multiple negative pressure connector seats 16 and negative pressure equipment to perform negative pressure extraction work.

[0074] Specifically, when adding or reducing needle seats 3, the negative pressure connector seat 16 is replaced at the same time; for example, when there are two existing needle seats 3, the negative pressure connector seat 16 with two air pipes is replaced to ensure that it always corresponds to the needle seats 3 one by one.

[0075] Example 7

[0076] like Figures 1 to 3 As shown, preferably, on the basis of embodiments 1-6, it also includes a first liquid medicine connector 17, one end of the first liquid medicine connector 17 is connected to the liquid medicine injection device, and the other end is connected to two second liquid medicine connectors 18 through a pipeline, and the two second liquid medicine connectors 18 are respectively located at both ends of the needle block 5 and are connected to a plurality of liquid medicine interface seats 7.

[0077] The beneficial effects of the preferred solution in the above embodiment are: the first liquid medicine connector 17 and the second liquid medicine connector 18 perform multiple diversions, and the second liquid medicine connector 18 simultaneously connects multiple liquid medicine interface seats 7 to achieve simultaneous injection of medicine on both sides of multiple needle blocks 5.

[0078] Specifically, the drug liquid injection device is a syringe, the inlet of the first drug liquid connector 17 is connected to the syringe, and the syringe is pushed to inject the drug. The drug liquid is divided into two second drug liquid connectors 18 at the outlet of the first drug liquid connector 17. The two second drug liquid connectors 18 are respectively located at both ends of the needle block 5. The second drug liquid connectors 18 can be connected to any number of needle blocks 5 for simultaneous injection.

[0079] When adding or reducing needle seats 3, the second liquid medicine connector 18 is replaced at the same time; for example, when there are two needle seats 3, the second liquid medicine connector 18 with two interfaces is replaced to ensure that there is always a one-to-one correspondence with the needle seats 3.

[0080] As a parallel technical solution of the above embodiment, the first drug liquid connector 17 may be replaced, and the inlet ends of the two second drug liquid connectors 18 may be respectively connected to two syringes to increase the total injection pressure.

[0081] Example 8

[0082] like Figure 1 and Figure 7 As shown, preferably, on the basis of embodiments 1-7, a first protrusion 19 is fixedly connected to one side wall of the needle seat 3, and a first groove 20 is opened on the other opposite side wall, and the first protrusions 19 of two adjacent needle seats 3 are slidably located in the first groove 20;

[0083] The left clamping block 1 has a second protrusion 21 on the side wall facing the needle seat 3 , which cooperates with the first groove 20 . The right clamping block 2 has a second groove 22 on the side wall facing the needle seat 3 , which cooperates with the first protrusion 19 .

[0084] The beneficial effect of adopting the preferred solution in the above embodiment is that the needle seats 3 are provided with a concave-convex mortise and tenon structure, which is convenient for mutual connection and also convenient for installation between the left clamping block 1 and the right clamping block 2 .

[0085] Example 9

[0086] like Figure 1 and Figure 7 As shown, preferably, on the basis of embodiments 1-8, an adjusting block 23 is fixedly connected to one side wall of the right clamping block 2 facing the left clamping block 1, and an adjusting groove 24 is provided on one side wall of the left clamping block 1 facing the right clamping block 2, and the length direction of the adjusting groove 24 is perpendicular to the side wall where the adjusting block 23 is located, and the adjusting block 23 is slidably located in the adjusting groove 24;

[0087] A second threaded rod 25 is also installed on the top surface of the left clamping block 1 . An adjusting knob is fixedly connected to one end of the second threaded rod 25 , and the other end passes through the left clamping block 1 and extends into the adjusting slot 24 and abuts against the side wall of the adjusting block 23 .

[0088] The beneficial effect of adopting the preferred solution in the above embodiment is that the left clamping block 1 and the right clamping block 2 can be adjusted by relative sliding and fixed by adjusting knobs, so that different numbers of needle headers 3 can be installed easily.

[0089] Specifically, grasp the left clamping block 1 and pull the right clamping block 2. The adjusting block 23 slides in the adjusting slot 24. After sliding to a suitable distance, turn the adjusting knob. The adjusting knob drives the second threaded rod 25 to drill into the adjusting slot 24. The bottom end of the second threaded rod 25 abuts against the adjusting block 23, so that the adjusting block 23 no longer rotates.

[0090] As a parallel technical solution of the above embodiment, a plurality of pin holes can also be opened on the adjusting block 23 along the sliding direction, and the second threaded rod 25 can be changed into a pin column. When the adjusting block 23 is pulled to a suitable position, the pin column is inserted and penetrated into the pin hole to fix the adjusting block 23.

[0091] Example 10

[0092] like Figure 1 and Figure 7 As shown, preferably, on the basis of embodiments 1-9, a handle 26 is also fixedly connected to the top of the left clamping block 1.

[0093] The beneficial effect of adopting the preferred solution in the above embodiment is that the handle 26 is convenient for the staff to hold and use the device.

[0094] How to use this device:

[0095] When water injection is required, first determine the skin area of ​​the injection location, adjust the clamping width of the clamping seat, and install a suitable number of needle seats 3 in the clamping seat;

[0096] Then hold the clamping seat and place several rows of needle seats 3 close to the subject's skin. The negative pressure groove 9 and the skin are attached to form a chamber. In the initial state, the needle 4 is located in the needle tube 10 and will not pierce the skin. The negative pressure device is started to pump out the air in the chamber, forming a negative pressure environment to suck the skin;

[0097] Then, the knob 13 is turned to drive the needle block 5 to descend, driving the needle 4 to extend out of the needle barrel 10 to pierce the subject's skin, and then the syringe is pushed. The syringe passes through the first liquid medicine connector 17, the second liquid medicine connector 18, the needle block 5, and the first cavity 6 in sequence, and then flows out from the needle 4 and is injected into the subject's skin, completing the water light injection;

[0098] Finally, turn the knob 13 in the opposite direction to retract the needle 4, turn off the negative pressure device, and pick up the clamping seat.

[0099] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0100] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0101] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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.

[0102] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0103] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0104] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A water light injection device for large area injection, characterized in that: It comprises a clamping seat with adjustable clamping width, wherein the clamping seat comprises a left clamping block (1) and a right clamping block (2) which can slide relative to each other; A plurality of needle row seats (3) are sequentially installed between the left clamping block (1) and the right clamping block (2) from left to right, wherein a needle row assembly is arranged inside the needle row seat (3), a needle head (4) of the needle row assembly extends out from the bottom of the needle row seat (3), and both ends of the needle row assembly in the length direction extend out from the front and rear side walls of the needle row seat (3) and are connected to the liquid medicine injection device.

2. A water light injection device for large area injection according to claim 1, characterized in that: The needle row assembly comprises a needle row block (5), a first cavity (6) is provided inside the needle row block (5), a plurality of needle heads (4) are fixedly connected in sequence to the bottom surface of the needle row block (5) along the length direction, and the needle heads (4) are connected to the first cavity (6); Both ends of the needle row block (5) in the length direction are fixedly connected with a liquid medicine interface seat (7), one end of the two liquid medicine interface seats (7) is connected to the first cavity (6), and the other end extends from the front and rear side walls of the needle row seat (3) and is connected to the liquid medicine injection device.

3. A water light injection device for large area injection according to claim 2, characterized in that: A second cavity (8) is provided in the needle seat (3), and the needle block (5) is slidably located in the second cavity (8), and the sliding direction of the needle block (5) is perpendicular to the bottom surface of the needle seat (3); The bottom surface of the needle row seat (3) is provided with a negative pressure groove (9), the negative pressure groove (9) is connected to the negative pressure device, a needle tube (10) corresponding to the needle (4) is fixed in the negative pressure groove (9), the needle tube (10) is connected to the second cavity (8), the needle (4) is slidably located in the needle tube (10) and can extend from the needle tube (10) to the needle row seat (3).

4. A water light injection device for large area injection according to claim 3, characterized in that: The top surface of the needle seat (3) is fixedly connected with a ring platform (11), a through hole (12) is provided in the ring platform (11), the through hole (12) is communicated with the second cavity (8), and a knob disk (13) is rotatably mounted on the ring platform (11); A first threaded rod (14) is fixedly connected to the top surface of the needle row block (5), one end of the first threaded rod (14) passes through the through hole (12) and extends out of the ring platform (11), and the first threaded rod (14) is threadedly connected to the knob disk (13).

5. The water light injection device for large area injection according to claim 3, characterized in that: The top surface of the needle row seat (3) is also provided with a negative pressure interface hole (15), the top end of the negative pressure interface hole (15) is connected to the negative pressure equipment, and the other end of the negative pressure interface hole (15) is connected to the negative pressure groove (9).

6. A water light injection device for large area injection according to claim 5, characterized in that: A negative pressure connector seat (16) is fixedly connected to the right clamping block (2); one end of the negative pressure connector seat (16) is connected to a plurality of negative pressure interface holes (15) through an air pipe, and the other end is connected to the negative pressure device.

7. The water light injection device for large area injection according to claim 2, characterized in that: It also includes a first liquid medicine connector (17), one end of which is connected to a liquid medicine injection device, and the other end of which is connected to two second liquid medicine connectors (18) via a pipeline. The two second liquid medicine connectors (18) are respectively located at two ends of the needle row block (5) and are connected to a plurality of liquid medicine interface seats (7).

8. The water light injection device for large area injection according to claim 1, characterized in that: A first protrusion (19) is fixedly connected to one side wall of the needle row seat (3), and a first groove (20) is provided on the other opposite side wall, and the first protrusions (19) of two adjacent needle row seats (3) are slidably located in the first groove (20); The left clamping block (1) is provided with a second protrusion (21) on the side wall facing the needle seat (3) and is matched with the first groove (20), and the right clamping block (2) is provided with a second groove (22) on the side wall facing the needle seat (3) and is matched with the first protrusion (19).

9. A water light injection device for large area injection according to any one of claims 1 to 8, characterized in that: An adjusting block (23) is fixedly connected to one side wall of the right clamping block (2) facing the left clamping block (1); an adjusting groove (24) is provided on one side wall of the left clamping block (1) facing the right clamping block (2); the length direction of the adjusting groove (24) is perpendicular to the side wall where the adjusting block (23) is located; and the adjusting block (23) is slidably located in the adjusting groove (24); A second threaded rod (25) is also installed on the top surface of the left clamping block (1), one end of the second threaded rod (25) is fixedly connected to an adjustment knob, and the other end passes through the left clamping block (1) and extends into the adjustment groove (24) and abuts against the side wall of the adjustment block (23).

10. A water light injection device for large area injection according to any one of claims 1 to 8, characterized in that: A handle (26) is also fixedly connected to the top of the left clamping block (1).

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