CN215275102U

CN215275102U - Porous water laser acupuncture device

Info

Publication number: CN215275102U
Application number: CN202121567172.9U
Authority: CN
Inventors: 梅俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-12-24
Anticipated expiration: 2031-07-09

Abstract

The utility model relates to a porous water light needle device, including the needle file main part, the needle file, fixed faller, injection connector and regulation spiral cover, set up a plurality of seal assembly that play sealed effect in this device between needle file main part and needle file, can keep using two parts of median septum as the boundary to separate in the needle file main part through seal assembly, prevent that injection in-process needle file main part internal pressure is unbalanced, the part that makes direct contact skin in the needle file main part is invariable at injection in-process internal pressure, and then make device injection process injection pressure invariable, guarantee the injection effect, can avoid the injection liquid to flow back to the device inside simultaneously, avoid polluting the inner structure.

Description

Porous water laser acupuncture device

Technical Field

The utility model belongs to the technical field of medical equipment, a porous water light needle device is related to.

Background

The water light needle is characterized in that nutrient substances such as hyaluronic acid, botulinum toxin and the like are injected into dermis in a micro-scale manner by utilizing an injection device so as to be uniformly distributed on the superficial layer of the dermis, and the injection of the water light needle is divided into a plurality of manners in the market at present, wherein, the common water laser needle device is mostly an injection water laser needle device, the device can automatically suck up the skin by utilizing a negative pressure system, the needle head slightly penetrates the skin, the length of the needle can be adjusted after the pressure sensing system judges that the needle head penetrates the skin, the injector is pushed to complete the injection, however, most of the existing water laser needle devices in the market have poor sealing performance, are easy to cause backflow during injection, and because the injection is carried out by adopting multi-hole injection, the injection amount of each hole can not be ensured to be consistent, so that the injection dosage of partial parts of the skin is too much, the injection dosage of partial parts of the skin is too little, the integral nursing effect of the skin is poor, and even the skin of a human body is greatly damaged.

Chinese patent document CN205494668U discloses a multi-needle water laser needle, which mainly comprises a multi-needle frame, a protective cover is arranged at one end of the multi-needle frame, an injection frame is arranged at the other end of the multi-needle frame, one end of the injection frame is connected with the injection access frame, the injection frame is provided with a water light needle head, the multi-needle frame is provided with a water light needle hole, the water light needle head passes through the water light needle hole, the needle frame is provided with a fixed frame, the injection access frame is provided with an injection access port, the injection frame is provided with an injection stroke track, the injection access frame is provided with an injection stroke ball, the injection stroke ball runs in the injection stroke track, however, in the device, the multi-needle holder and the injection holder mutually keep displacement motion in a surface contact mode, a gap exists between the contact surface positions of the multi-needle holder and the injection holder, and injection liquid flows back to the inside of the device through the gap to cause internal pollution.

Chinese patent document CN110384844A discloses a multi-head injection needle, which comprises a needle seat, a needle holder, a needle tube fixing hole and a needle tube fixing hole; the needle tube is fixed on the needle seat; the shunting seat is arranged in the concave cavity of the needle seat and is provided with a through hole, and the upper end of the needle tube penetrates into the through hole; the conical seat is provided with a channel, the middle part of the conical seat is provided with an external thread and an annular boss, the side surface of the annular boss is provided with a warning bulge and a first self-destruction bulge, the bottom of the annular boss is arranged in the concave cavity of the needle seat, and the bottom of the annular boss is assembled with the top of the shunting seat and surrounds a cavity; the negative pressure seat is sleeved outside the needle seat, a transverse clapboard is arranged in the negative pressure seat, the transverse clapboard limits the descending of the needle seat, and a needle tube through hole is arranged on the transverse clapboard; and the adjusting seat is sleeved at the middle part of the conical seat and the top of the negative pressure seat and is provided with a step through hole, and an internal thread and a second self-destruction bulge are arranged in the step through hole. The device can adjust the extending length of the needle tube and has the self-destruction function and the warning function before self-destruction. However, the components in the device are connected in a surface contact manner, particularly, the needle seat is embedded with the negative pressure seat in a surface contact manner, a gap exists between the contact surfaces of the needle seat and the negative pressure seat, the negative pressure seat needs to keep a negative pressure state and needs to be internally sealed, but the gap between the needle seat and the negative pressure seat makes the negative pressure state difficult to keep constantly, and pressure leakage and injection backflow are easy to occur in the injection process, so that the device is poor in sealing effect, and the injection effect is poor.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model discloses a porous water light needle device, set up a plurality of seal assembly that play sealing effect in this device between needle file main part and needle file, can keep using two parts of median septum as the boundary to separate in the needle file main part through seal assembly, prevent that injection in-process needle file main part internal pressure is unbalanced, the part of direct contact skin is invariable at injection in-process internal pressure in making the needle file main part, and then and make device injection process injection pressure invariable, guarantee the injection effect, can avoid the injection liquid to flow back to the device inside simultaneously, avoid polluting the inner structure.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a porous water laser acupuncture device comprises a needle base main body, a needle base, a fixed needle plate, an injection connecting piece and an adjusting spiral cover.

A first cylindrical structure and a second cylindrical structure which are open are respectively arranged in the needle seat main body, a middle partition plate is arranged between the first cylindrical structure and the second cylindrical structure, and a plurality of first through holes are formed in the middle partition plate; be equipped with a plurality of conical first direction pinholes that are in the first tubular structure, every first direction pinhole corresponds a first through-hole respectively, the last tip position that deviates from the median septum of second tubular structure is equipped with and is circular shape first connecting portion.

The needle file is installed in the second tubular structure of needle file main part, the inside third tubular structure that is equipped with of needle file, the bottom of third tubular structure is equipped with a plurality of conical second direction pinholes that are, just the outside of needle file is equipped with the recess that encircles a needle file surface a week on the surface, the inside annular first sealing washer that is equipped with of recess, the bottom of needle file still is equipped with the second sealing washer, the needle file bottom is hugged closely to the second sealing washer.

The adjusting screw cap is arranged at the opening position of the second tubular structure in the needle seat main body, the adjusting screw cap is in a cap shape, the edge position of the adjusting screw cap is provided with a second connecting part corresponding to the first connecting part, and the middle position of the adjusting screw cap is provided with a first thread part.

The fixed needle plate is located in the third cylindrical structure of the needle seat, the injection connecting piece comprises a liquid guide pipe and a flow distribution plate, one end of the liquid guide pipe penetrates through the first thread portion and extends into the third cylindrical structure, the other end of the liquid guide pipe is located on the outer side of the adjusting screw cap, the flow distribution plate is located in the third cylindrical structure and is communicated with the liquid guide pipe, and the flow distribution plate and the fixed needle plate jointly form a containing cavity for liquid distribution.

Further, the second sealing ring is of a closed frame structure, the whole edge of the second sealing ring is flush with the edge of the bottom of the needle seat, and the second sealing ring is tightly attached to the edge of the bottom of the needle seat.

Furthermore, the second sealing washer adopts square pad, square pad bonds in the needle file bottom, just the position that corresponds the second direction pinhole on the square pad is equipped with the through-hole, the second direction pinhole passes the through-hole on the square pad.

Furthermore, the excircle surface position of first connecting portion is equipped with the first fixed part that is buckle structure, the internal surface of second connecting portion is equipped with the second fixed part that is buckle structure, first fixed part and second fixed part are fixed at axial position, just first fixed part and second fixed part are along circumference position free rotation.

Furthermore, the outer side surface of the first cylindrical structure is provided with a negative pressure channel, one end of the negative pressure channel is communicated with the inside of the first cylindrical structure, and the other end of the negative pressure channel is connected with a negative pressure device.

Further, be equipped with the spacing groove that is used for fixed flow distribution plate on the fixed faller, spacing groove bottom is equipped with a plurality of fixed pinholes, fixed pinhole corresponds the second direction pinhole of third tubular structure bottom respectively.

Furthermore, a plurality of liquid guiding circular grooves corresponding to the fixed needle holes are arranged on the flow distribution plate, the liquid guiding circular grooves are distributed on one side, close to the fixed needle plate, of the flow distribution plate, and flow guiding channels are respectively arranged between the liquid guiding circular grooves in the middle of the flow distribution plate and the rest liquid guiding circular grooves; and the side surface of the flow distribution plate is provided with a limiting flange surrounding the flow distribution plate for one circle, and the limiting flange is tightly attached to a limiting groove on the fixed needle plate.

Furthermore, a liquid guide through hole is formed in the axis position of the liquid guide pipe, and one end of the liquid guide through hole is communicated with the liquid guide circular groove in the central position of the flow distribution plate; the outer circle surface of the liquid guide pipe is provided with a second thread part, and the second thread part is matched with the first thread part on the adjusting screw cap.

Further, the edge of fixed faller and flow distribution plate all is equipped with the guide way, the inner wall of third tubular structure is equipped with the direction muscle in the needle file, through direction muscle and direction muscle cooperation keep fixed faller and flow distribution plate follow third tubular structure's axial displacement jointly.

Further, be equipped with first step face and second step face on the inner wall surface of third tubular structure in the needle file, just the hookup location of first step face and second step face is equipped with spacing step, wherein the size of first step face is less than the fixed needle plate size, the size of second step face is greater than the fixed needle plate size.

Compared with the prior art, the utility model, have following advantage:

the utility model provides a water light needle device is through setting up a plurality of seal assembly that play sealed effect between needle file main part and needle file, utilize seal assembly can keep using the median septum to separate as two parts of boundary in the needle file main part, prevent that injection in-process needle file main part internal pressure is unbalanced, make in the needle file main part direct contact skin's part at injection in-process internal pressure last invariable, and then make device injection process injection pressure keep invariable in the certain time, guarantee the injection effect, can avoid the injection liquid to flow back to the device inside simultaneously, avoid polluting the inner structure.

Drawings

FIG. 1 is a structural view of a porous water acupuncture device in the present embodiment;

FIG. 2 is a view showing the internal structure of a porous water needling device according to the present embodiment;

FIG. 3 is a structural view of a first seal ring in the present embodiment;

FIG. 4 is a structural view of a second seal ring in a closed frame-shaped configuration in the present embodiment;

FIG. 5 is a structural view of a second seal ring in a square pad configuration in the present embodiment;

FIG. 6 is a structural view of the needle hub body of the present embodiment;

FIG. 7 is an internal structural view of the hub main body in the present embodiment;

FIG. 8 is a structural view of an adjusting screw cap in the present embodiment;

FIG. 9 is a structural view of the injection connector in the present embodiment;

FIG. 10 is a structural view of the needle holder in the present embodiment;

FIG. 11 is an internal structural view of the needle bed in the present embodiment;

FIG. 12 is a structural view of a fixed needle plate in the present embodiment;

fig. 13 is a side sectional view of the fixing needle plate in the present embodiment.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example (b):

as shown in fig. 1 and 2, the embodiment discloses a porous water light needle device, which comprises a needle seat main body 1, a needle seat 4, a fixed needle plate 5, an injection connecting piece 3, an adjusting screw cap 2 and a sealing component.

Specifically, as shown in fig. 6 and 7, the overall structure of the needle holder main body 1 is a rectangular block structure, a first cylindrical structure 101 and a second cylindrical structure 102 which are open are respectively arranged inside the needle holder main body 1, a middle partition plate 104 is arranged between the first cylindrical structure 101 and the second cylindrical structure 102, a plurality of first through holes are arranged on the middle partition plate 104, and preferably, 9 first through holes are arranged on the middle partition plate 104 in the embodiment; a plurality of first conical guide pin holes 105 are formed in the first cylindrical structure 101, each first guide pin hole 105 corresponds to one first through hole, and the end part of each first guide pin hole 105, which is far away from the middle partition plate 104, is slightly lower than the edge of the first cylindrical structure 101 by 0.1-0.2 mm; the end position of the second cylindrical structure 102 departing from the middle partition plate 104 is provided with a first connecting portion 103 in a circular shape, and the outer circular surface of the first connecting portion 103 is provided with a first fixing portion 1031 in a snap structure. The outer side surface of the first cylindrical structure 101 is provided with a negative pressure channel 106, one end of the negative pressure channel 106 is communicated with the inside of the first cylindrical structure 101, and the other end is connected with a negative pressure device. Can keep first tubular structure 101 in the negative pressure state through negative pressure device in the injection process to when the device contacts with the skin, the skin can hug closely first guide pinhole 105 of first tubular structure 101 inside, when the inside syringe needle of device stretches out, can guarantee to pierce the equal degree of depth of skin, improves the injection effect.

Referring to fig. 10 and 11, the entire structure of the needle holder 4 is a rectangular block structure, the needle holder 4 is installed in the second tubular structure 102 of the needle holder body 1, the inside of the needle holder 4 is provided with a third tubular structure 401, the bottom of the third tubular structure 401 is provided with a plurality of second guide needle holes 402 in a tapered shape, the outer side surface of the needle holder 4 is provided with a groove 405 surrounding the surface of the needle holder 4 for one circle, the inside of the groove 405 is provided with a first annular sealing ring 6, when the needle holder 4 is installed in the second tubular structure 102, a gap exists between the outer wall of the needle holder 4 and the inner wall of the second tubular structure 102, because the first tubular structure 101 is communicated with the negative pressure channel 106, when the device is used for injection, the inside of the first tubular structure 101 is kept in a constant low pressure state, so that the skin is supposed to be protruded inside the first tubular structure 101, and the skin is tightly attached to the first guide needle holes 105, later, the syringe needle in the first direction pinhole 105 stretches out and pierces the skin in, and the injection liquid can flow more smoothly, promotes the injection effect, and for avoiding the inside gas of second tubular structure 102 inside through the gap infiltration first tubular structure 101 between the outer wall of needle file 4 and the second tubular structure 102 inner wall inside, and then lead to first tubular structure 101 internal pressure to change, influence the injection effect, the outside surface of needle file 4 encircles and sets up the round first sealing washer 6, as shown in fig. 3, separates first tubular structure 101 and second tubular structure 102 through first sealing washer 6, can avoid the inside atmospheric pressure of first tubular structure 101 to change, and then can avoid the injection liquid refluence of syringe needle portion to get into the inside pollution inner structure of second tubular structure 102.

Furthermore, in order to enhance the sealing effect between the first tubular structure 101 and the second tubular structure 102, the bottom of the needle seat 4 may be provided with a second sealing ring 7, the second sealing ring 7 is a closed frame structure, as shown in fig. 4, the second sealing ring 7 is tightly attached to the edge of the bottom of the needle seat 4, in this embodiment, the second sealing ring 7 in the closed frame structure is preferably bonded to the bottom of the needle seat 4, the whole edge of the second sealing ring 7 is flush with the edge of the bottom of the needle seat 4, and the second sealing ring 7 is tightly attached to the edge of the bottom of the needle seat 4, the second guiding needle holes 402 on the needle seat 4 are all located in the second sealing ring 7, when the device is out of the needle, the bottom of the needle seat 4 and the bottom of the second tubular structure 102 are tightly attached to clamp the second sealing ring 7, so as to separate the first tubular structure 101 from the second tubular structure 102, and extract the gas through the negative pressure channel 106, the internal air pressure of the first cylindrical structure 101 is reduced, and the internal air pressure can be kept constant due to the good sealing effect, so that when the injection liquid inside the first cylindrical structure 101 is injected to the skin, the injection liquid cannot flow back into the second cylindrical structure 102 through the first guide needle hole 105.

Alternatively, the second sealing ring 7 may also be a square pad, as shown in fig. 5, the square pad is bonded to the bottom of the needle seat 4, a through hole is formed in a position, corresponding to the second guiding needle hole 402, on the square pad, the second guiding needle hole 402 penetrates through the through hole on the square pad, when the device is out of the needle, the second tubular structure 102 is close to the first tubular structure 101, and the square pad is extruded by the bottom of the second tubular structure 102, so that each first guiding needle hole 105 in the first tubular structure 101 is separated from the inside of the second tubular structure 102, and thus the situation that the liquid medicine flows back from the first guiding needle tube and pollutes the inside of the device is avoided.

As shown in fig. 8, the adjusting screw cap 2 is disposed at an opening of the second cylindrical structure 102 in the needle holder body 1, the adjusting screw cap 2 is a cap-shaped body, a second connecting portion 201 corresponding to the first connecting portion 103 is disposed at an edge of the adjusting screw cap 2, and a first threaded portion 202 is disposed at a middle position of the adjusting screw cap 2.

More in detail, the outer circle surface position of the first connecting portion 103 is provided with a first fixing portion 1031 which is a snap structure, the inner surface of the second connecting portion 201 is provided with a second fixing portion 2011 which is a snap structure, the first fixing portion 1031 and the second fixing portion 2011 can keep the adjusting screw cap 2 and the needle holder body 1 fixed at the axial position, and the first fixing portion 1031 and the second fixing portion 2011 can freely rotate along the circumferential position.

More specifically, as shown in fig. 12 and 13, the fixing needle plate 5 is located in the third cylindrical structure 401 of the needle seat 4, and the fixing needle plate 5 is parallel to the bottom of the third cylindrical structure 401. The fixing needle plate 5 is provided with a limiting groove 501 for fixing the flow distribution plate 302, the bottom of the limiting groove 501 is provided with a plurality of fixing needle holes 503, and the fixing needle holes 503 correspond to the second guide needle holes 402 at the bottom of the third tubular structure 401 respectively.

Simultaneously for the fixed faller 5 displacement distance of restriction, be equipped with first step face and second step face on the inner wall surface of third tubular structure 401 in needle file 4, just the hookup location of first step face and second step face is equipped with spacing step 403, wherein the size of first step face is less than fixed faller 5's size, the size of second step face is greater than fixed faller 5's size. The lower limit of the displacement of the fixing needle plate 5 towards the third cylinder 401 can be limited by the size limitation, avoiding that the needle head in the device is extended too long,

wherein the injection connector 3 comprises a liquid guide tube 301 and a flow dividing plate 302, as shown in fig. 9, one end of the liquid guide tube 301 passes through the first thread part 202 and extends into the third cylindrical structure 401, the other end is located outside the adjusting screw cap 2, the flow dividing plate 302 is located in the third cylindrical structure 401, the flow dividing plate 302 is communicated with the liquid guide tube 301, and the flow dividing plate 302 and the fixed needle plate 5 together form a containing chamber for liquid flow dividing. Specifically, the flow distribution plate 302 is provided with a plurality of liquid guiding circular grooves 3021 corresponding to the fixed needle holes 503, the liquid guiding circular grooves 3021 are distributed on one side of the flow distribution plate 302 close to the fixed needle plate 5, and flow guiding channels 3022 are respectively arranged between the liquid guiding circular grooves 3021 located in the middle of the flow distribution plate 302 and the remaining liquid guiding circular grooves 3021; the side surface of the flow distribution plate 302 is provided with a limit flange 3023 surrounding the flow distribution plate 302 for one circle, and the limit flange 3023 is tightly attached to the limit groove 501 on the fixed needle plate 5; in the injection process, the flow distribution plate 302 and the fixed needle plate 5 are tightly attached, a cavity for containing liquid is formed inside the flow distribution plate and the fixed needle plate, and the injection liquid is introduced into the injection liquid through the injection connecting piece 3 and is uniformly distributed in each needle head through the flow guide channels 3022 on the flow distribution plate 302; a liquid guiding through hole is formed in the axis position of the liquid guiding pipe 301, and one end of the liquid guiding through hole is communicated with a liquid guiding circular groove 3021 in the center position of the flow distribution plate 302; the outer cylindrical surface of catheter 301 is equipped with second screw thread portion 303, second screw thread portion 303 cooperates with first screw thread portion 202 on adjusting the spiral cover 2, through twisting regulation spiral cover 2, relative displacement takes place for first screw thread portion 202 and second screw thread portion 303, because adjust spiral cover 2 and needle file main part 1 axial position fixed, consequently injection connecting piece 3 is along axial displacement for needle file 4, make flow distribution plate 302 and fixed faller 5 promote the displacement of needle file 4 to needle file main part 1, realize that the syringe needle stretches out, twist in the opposite direction in the same way and adjust spiral cover 2, can make the syringe needle retract.

Further, the edges of the fixing needle plate 5 and the splitter plate 302 are provided with guide grooves 502, the inner wall of the third cylindrical structure 401 in the needle seat 4 is provided with guide ribs 404, and the fixing needle plate 5 and the splitter plate 302 are kept to move along the axial direction of the third cylindrical structure 401 together through the cooperation of the guide ribs 404 and the guide grooves 502.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.

Claims

1. A porous water laser needle device is characterized by comprising a needle base main body, a needle base, a fixed needle plate, an injection connecting piece and an adjusting spiral cover,

a first cylindrical structure and a second cylindrical structure which are open are respectively arranged in the needle seat main body, a middle partition plate is arranged between the first cylindrical structure and the second cylindrical structure, and a plurality of first through holes are formed in the middle partition plate; a plurality of first conical guide needle holes are formed in the first cylindrical structure, each first guide needle hole corresponds to one first through hole, and a first circular connecting part is arranged at the end part of the second cylindrical structure, which is far away from the middle partition plate;

the needle seat is arranged in a second tubular structure of the needle seat main body, a third tubular structure is arranged in the needle seat, a plurality of second conical guide needle holes are formed in the bottom of the third tubular structure, a groove surrounding the surface of the needle seat in a circle is formed in the surface of the outer side of the needle seat, a first annular sealing ring is arranged in the groove, a second sealing ring is further arranged at the bottom of the needle seat, and the second sealing ring is tightly attached to the bottom of the needle seat;

the adjusting rotary cover is arranged at the opening position of the second cylindrical structure in the needle base main body, the adjusting rotary cover is in a cover body shape, the edge position of the adjusting rotary cover is provided with a second connecting part corresponding to the first connecting part, and the middle position of the adjusting rotary cover is provided with a first threaded part;

2. The multi-hole water laser needle device as claimed in claim 1, wherein the second sealing ring is of a closed frame structure, the whole edge of the second sealing ring is flush with the edge of the bottom of the needle seat, and the second sealing ring is tightly attached to the edge of the bottom of the needle seat.

3. The porous water laser needle device according to claim 1, wherein the second sealing ring is a square pad, the square pad is adhered to the bottom of the needle base, and a through hole is formed in the square pad at a position corresponding to the second guide needle hole, and the second guide needle hole penetrates through the through hole in the square pad.

4. The porous water light needle device according to claim 1, wherein a first fixing portion of a snap structure is disposed on an outer circumferential surface of the first connecting portion, a second fixing portion of a snap structure is disposed on an inner circumferential surface of the second connecting portion, the first fixing portion and the second fixing portion are fixed in an axial position, and the first fixing portion and the second fixing portion are free to rotate in a circumferential position.

5. The porous water laser needle device as claimed in claim 2, wherein the outer side surface of the first cylindrical structure is provided with a negative pressure channel, one end of the negative pressure channel is communicated with the inside of the first cylindrical structure, and the other end of the negative pressure channel is connected with a negative pressure device.

6. The porous water laser needle device according to claim 1, wherein the fixing needle plate is provided with a limiting groove for fixing the splitter plate, the bottom of the limiting groove is provided with a plurality of fixing needle holes, and the fixing needle holes respectively correspond to the second guiding needle holes at the bottom of the third cylindrical structure.

7. The porous water laser needle device according to claim 6, wherein the splitter plate is provided with a plurality of liquid guiding circular grooves corresponding to the fixed needle holes, the liquid guiding circular grooves are distributed on one side of the splitter plate close to the fixed needle plate, and flow guiding channels are respectively arranged between the liquid guiding circular grooves at the middle position of the splitter plate and the remaining liquid guiding circular grooves; and the side surface of the flow distribution plate is provided with a limiting flange surrounding the flow distribution plate for one circle, and the limiting flange is tightly attached to a limiting groove on the fixed needle plate.

8. The porous water laser needle device according to claim 7, wherein a liquid guiding through hole is formed at the axial center of the liquid guiding tube, and one end of the liquid guiding through hole is communicated with the liquid guiding circular groove at the central position of the flow distribution plate; the outer circle surface of the liquid guide pipe is provided with a second thread part, and the second thread part is matched with the first thread part on the adjusting screw cap.

9. The porous water laser needle device as claimed in claim 1, wherein the fixing needle plate and the splitter plate are provided with guide grooves at their edges, and the needle seat is provided with guide ribs on the inner wall of the third cylindrical structure, so that the fixing needle plate and the splitter plate are kept together to move axially along the third cylindrical structure by the cooperation of the guide ribs and the guide ribs.

10. The porous water laser needle device according to claim 1, wherein a first step surface and a second step surface are provided on an inner wall surface of a third cylindrical structure in the needle seat, and a limit step is provided at a connection position of the first step surface and the second step surface, wherein a size of the first step surface is smaller than a size of the fixed needle plate, and a size of the second step surface is larger than a size of the fixed needle plate.