CN220193809U

CN220193809U - Water light injection needle

Info

Publication number: CN220193809U
Application number: CN202223311655.XU
Authority: CN
Inventors: 张崇涛; 刘爱华; 谭英琳; 马安辉; 郑义; 王东方; 刘凤珍; 边雅倩; 郭珈均; 陈文平
Original assignee: Huaxi Biotechnology Tianjin Co ltd; Huaxi Biotechnology Xiangtan Co ltd; Bloomage Biotech Co Ltd
Current assignee: Huaxi Biotechnology Tianjin Co ltd; Huaxi Biotechnology Xiangtan Co ltd; Bloomage Biotech Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-12-19
Anticipated expiration: 2032-12-07

Abstract

The application discloses water light injection needle, including the casing, have first compartment and second compartment in the casing, have in the first compartment and give medicine to the subassembly, have injection unit in the second compartment, give medicine to the subassembly and inject the subassembly intercommunication, the bottom of second compartment has the elastic membrane layer, and injection unit's tip pierces through the elastic membrane layer, is provided with the gas vent on the lateral wall of second compartment, takes away the air in the second compartment through the gas vent, forms negative pressure environment to make the elastic membrane layer sunken to the second compartment is inside. The application provides a water light injection needle, during the injection, the face of subject and elastic membrane layer contact, take away the air in the second compartment through the gas vent, form the negative pressure environment in the second compartment, the negative pressure promotes facial skin to form the arc uplift, and the arc uplift that facial skin formed promotes the elastic membrane layer to carry out the deformation of corresponding radian, and this kind of uplift mode can guarantee facial skin and elastic membrane layer's inseparable laminating all the time to guaranteed needle penetration degree of consistency.

Description

Water light injection needle

Technical Field

The application relates to the technical field of medical instruments, in particular to a water light injection needle.

Background

The water light injection is to inject hyaluronic acid into skin depression to stimulate skin to generate new collagen, and maintain the dynamic balance of subcutaneous collagen at the injection site for a long time, so as to effectively eliminate skin aging caused by various reasons of facial skin, such as wrinkles and depressions.

However, in the existing water-light injection instrument, since the needle plate used for fixing the puncture needle on the needle head is a flat plastic plate, and the skin of the face of a person has a certain radian, even some radians are obvious, the needle plate and the skin surface are not fully attached, the penetration depth of the puncture needle into the skin is inconsistent, the injection is difficult to accurately inject into dermal tissues, and liquid leakage is caused, so that the treatment effect is reduced.

Disclosure of Invention

To above-mentioned problem, this application has provided a water light injection needle, when giving the subject injection, the face of subject with elastic membrane layer contact, then pass through the bleed hole will air in the second compartment is taken away, form negative pressure environment, the negative pressure impels facial skin to form the arc uplift, the arc uplift that facial skin formed promotes elastic membrane layer and carries out the deformation of corresponding radian, for the crowd of different skin elasticity, the inseparable laminating of facial skin and elastic membrane layer can be guaranteed all the time to this kind of uplift mode to the degree of consistency of depth of injection subassembly at needle in-process has been guaranteed, and then the injection subassembly homoenergetic of having guaranteed different uplift positions reaches predetermined subcutaneous degree of depth, and the puncture route is shortest, effectively prevent the weeping because of the puncture degree of depth is not enough when the facial skin injury nature falls to the minimum.

The application provides a water light injection needle, which comprises a shell, wherein the shell is internally provided with a first compartment and a second compartment,

the first compartment having an administration assembly therein, the second compartment having an injection assembly therein, the administration assembly in communication with the injection assembly,

the bottom of the second compartment is provided with an elastic membrane layer, the end part of the injection assembly penetrates through the elastic membrane layer, the side wall of the second compartment is provided with an air pumping hole, air in the second compartment can be pumped away through the air pumping hole, a negative pressure environment is formed, and therefore the elastic membrane layer is sunken towards the inside of the second compartment.

Further, a sealing rubber ring is arranged on the outer edge of one end of the shell, which is contacted with the facial skin of the subject, and the sealing rubber ring and the elastic adhesive film layer form an accommodating space;

the elastic membrane layer is provided with a plurality of air pressure balance holes.

Further, the injection assembly comprises a plurality of needle bases and puncture needles which are arranged at intervals, the needle bases are vertically arranged on the elastic membrane layer, and the puncture needles penetrate through the needle bases along the axis of the needle bases.

Further, the end of the piercing needle remote from the first compartment penetrates the elastic membrane layer, and the end of the piercing needle near the first compartment communicates with the administration assembly.

Further, the utility model also comprises a pneumatic lifting part,

the pneumatic lifting part is used for driving the puncture needle to lift.

Further, the utility model also comprises a hydraulic control lifting part,

the hydraulic control lifting part is used for limiting the puncture depth of the puncture needle.

Further, the pneumatic lifting part comprises a pumping plate, a sealing sleeve and a sealing piston,

the pumping plate is positioned in the second compartment, the outer edge of the pumping plate is connected with the shell, the needle seat is perpendicular to the pumping plate, a plurality of first through holes are formed in the pumping plate, and the needle seat penetrates through the first through holes;

the sealing sleeve is positioned at one end of the needle seat, which is away from the elastic membrane layer, and the puncture needle penetrates through the sealing sleeve and extends out of the needle seat.

The sealing piston is movably arranged in the needle seat, the sealing piston is sleeved on the puncture needle, and the needle seat, the sealing piston and the sealing sleeve form an air pumping area.

Further, a first opening is formed in the position, penetrating through the first through hole, of the needle seat;

the air guide hole is formed in the joint of the shell and the air pumping plate, a first runner is arranged in the air pumping plate, and the air guide hole is communicated with the first opening through the first runner, so that air is guided into/pumped out of the air pumping area to regulate and control the lifting of the puncture needle.

Further, the hydraulic control lifting part comprises a limiting ring, an annular telescopic sleeve and a lifting adjusting piston,

the limiting ring is positioned at one side of the sealing piston, which is away from the pumping area, and is movably sleeved on the puncture needle;

the annular telescopic sleeve is fixedly arranged in the needle seat, and is positioned below the limiting ring; the limiting ring deviates from one side surface of the sealing piston is provided with the lifting adjusting piston, and one end of the lifting adjusting piston deviating from the limiting ring stretches into the annular telescopic sleeve.

Further, the hydraulic control lifting part comprises a liquid injection plate, the liquid injection plate is positioned in the second compartment, and the outer edge of the liquid injection plate is connected with the shell;

the liquid injection plate is parallel to the pumping plate, a plurality of second through holes are formed in the liquid injection plate, the second through holes are located right below the first through holes, and the needle seat sequentially penetrates through the first through holes and the second through holes.

Further, a second opening is formed in the position, penetrating through the second through hole, of the needle seat; a through hole opposite to the second opening is arranged on the side wall of the annular telescopic sleeve,

a second runner is arranged in the liquid injection plate, and the second runner is communicated with the second opening and the through hole.

Further, the second runner is communicated with the second opening and the through hole through a liquid injection hose.

Further, a guide plate is arranged in the shell, the outer edge of the guide plate is connected with the inner wall of the shell, and the shell is divided into the first compartment and the second compartment through the guide plate;

the middle part of one side surface of the guide plate, which faces the first compartment, is provided with a guide column perpendicular to the guide plate, a plurality of guide flow passages are arranged in the guide plate, and the guide flow passages are communicated with the puncture needle through a drug delivery hose.

Further, the medicine feeding conical seat is sleeved at one end, far away from the guide plate, of the guide column in the medicine feeding conical seat, the medicine feeding conical seat can be lifted along the axial direction of the guide column, and the guide column is in close contact with the joint of the medicine feeding conical seat.

Further, an adjusting piston is sleeved on the periphery of one end of the drug delivery conical seat, which is close to the guide plate,

the guide plate is provided with an annular groove, the annular groove is coaxial with the guide column, and the adjusting piston is movably arranged in the annular groove.

Further, a first transition runner is arranged in the guide plate and is communicated with the annular groove, a second transition runner communicated with the first transition runner is arranged in the shell, and the second runner is communicated with the annular groove through the second transition runner and the first transition runner.

Further, the water light injection needle also comprises an adjusting knob, and the adjusting knob is provided with a through hole along the axial direction of the adjusting knob;

the first compartment comprises a small diameter part and a large diameter part, the large diameter part is connected with the second compartment, and the small diameter part extends into the through hole to be buckled and connected with the adjusting knob;

the one end that the taper seat of dosing was kept away from the second compartment is provided with stretches out the connecting portion of first compartment, the periphery of connecting portion is provided with the external screw thread, the inner wall of through-hole be provided with external screw thread matched with internal screw thread.

The application provides a water light injection needle, when giving the subject injection, the facial of subject with elasticity rete contact, then pass through the bleed hole will air in the second compartment is taken away form the negative pressure environment in the second compartment, and the negative pressure promotes facial skin and forms the arc uplift, and the arc uplift that facial skin formed promotes the elasticity rete and carries out the deformation of corresponding radian, to the crowd of different skin elasticity, this kind of uplift mode can guarantee facial skin and elasticity rete closely laminating all the time to guaranteed injection assembly at the degree of depth uniformity of needle in-process.

The application provides a water light injection needle elastic membrane layer arc uplift in-process takes place adaptability change, injection subassembly is at elastic membrane layer arc uplift in-process all the time keep perpendicular with the facial skin of needle position of inserting to further guaranteed that the injection subassembly homoenergetic of different uplift positions reaches predetermined subcutaneous degree of depth, and puncture route is shortest, effectively prevents the weeping that leads to because of puncture degree of depth is not enough when the facial skin injury nature falls to minimum.

Drawings

The drawings are included to provide a better understanding of the present application and are not to be construed as unduly limiting the present application. Wherein:

fig. 1 is a schematic structural view of a water light injection needle provided by the application.

Fig. 2 is a schematic structural view of the water light injection needle provided by the application.

Fig. 3 is a schematic structural view of the water light injection needle provided by the application.

Fig. 4 is an enlarged schematic view of a partial structure of the water light injection needle provided in the present application.

Fig. 5 is a schematic view of a partial structure of a water light injection needle provided in the present application.

Fig. 6 is a schematic structural view of the water light injection needle provided in the present application.

Description of the reference numerals

1-shell, 2-facial skin, 3-elastic membrane layer, 4-second compartment, 5-negative pressure pipe, 6-pjncture needle, 7-needle file, 8-adjust knob, 9-through hole, 10-pump trachea, 11-dosing cone seat, 12-external screw thread, 13-sealing rubber ring, 14-baffle, 15-dosing hose, 16-guide post, 17-sealing piston, 18-seal cover, 19-pumping area, 20-pumping hose, 21-annular telescopic sleeve, 22-lifting adjust piston, 23-spacing ring, 24-first compartment, 25-annotate liquid hose, 26-ring groove, 27-adjust piston, 28-pumping plate, 29-first through-hole, 30-annotate liquid board, 31-second through-hole.

Detailed Description

Exemplary embodiments of the present application are described below, including various details of embodiments of the present application to facilitate understanding, which should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness. The upper and lower positions in this application depend on the direction of incidence of the light, where the light is incident.

In this application, a number refers to two or more.

As shown in fig. 1, the present application provides a water light injection needle comprising a housing 1, the housing 1 having a first compartment 24 and a second compartment 4 therein,

the first compartment 24 has an administration set therein, the second compartment 4 has an injection set therein, the administration set being in communication with the injection set,

the bottom of the second compartment 4 is provided with an elastic membrane layer 3, the end part of the injection component penetrates through the elastic membrane layer 3, the side wall of the second compartment 4 is provided with an air suction hole, and air in the second compartment 4 can be pumped away through the air suction hole to form a negative pressure environment, so that the elastic membrane layer 3 is recessed towards the inside of the second compartment 4.

Specifically, the first compartment 24 is integrally formed with the second compartment 4.

In particular, the elastic membrane layer 3 may be silica gel or rubber.

Specifically, the air suction hole may be directly connected to the negative pressure device, or the air suction hole may be connected to the negative pressure pipe 5 first and then connected to the negative pressure device through the negative pressure pipe 5.

Specifically, a plurality of air pressure balance holes are formed in the elastic film layer 3, and air pressure inside and outside the elastic film layer 3 can be balanced through the air pressure balance holes.

Further, the air pressure balance holes are uniformly distributed on the elastic film layer 3.

The number of the air pressure balance holes can be 2, 3, 4, 5, 6, 7, 8, 9 and the like, and can be determined according to actual needs.

Further, as shown in fig. 2 and 6, the surface of the side of the elastic film layer 3 facing the face of the subject may have a geometric shape such as a circle, an ellipse, a rectangle, a regular pentagon, a regular hexagon, and the like, and is preferably a circle or a rectangle.

The application provides a water light injection needle, as shown in fig. 5, when giving the subject injection, will be injected the injection is poured into in the subassembly of dosing, then the injection passes through the subassembly of dosing gets into in the injection subassembly, the subject the face with elastic membrane layer 3 contact, then pass through the bleed hole will the air in the second compartment 4 forms the negative pressure environment in the second compartment 4, and the negative pressure promotes facial skin 2 and forms the arc uplift, and the arc uplift that facial skin 2 formed promotes elastic membrane layer 3 and carries out the deformation of corresponding radian, for the crowd of different skin elasticity, this kind of uplift mode can guarantee the inseparable laminating of facial skin 2 and elastic membrane layer 3 all the time to guaranteed the degree of consistency of depth of injection subassembly at the needle in-process.

The application provides a water light injection needle the adaptation changes takes place in the protruding in-process of elastic membrane layer 3 arc, injection subassembly is kept all the time perpendicular with the facial skin 2 of needle position of advancing in the protruding in-process of elastic membrane layer 3 arc to further guaranteed that the injection subassembly of different uplift positions homoenergetic reaches predetermined subcutaneous degree of depth, and puncture route is shortest, effectively prevents the weeping that leads to because of puncture degree of depth is not enough when the injury nature falls to minimum to facial skin 2.

In this application, be provided with sealed packing ring 13 on the outer edge of casing 1 and subject's facial skin 2 contact one end, sealed packing ring 13 protrusion elastic membrane layer 3 sets up, just sealed packing ring 13 with elastic membrane layer constitutes accommodation space.

Through the laminating of sealed rubber ring 13 and face skin 2 around can guarantee the gas tightness in the second compartment 4, the bleed hole makes under external negative pressure device effect the inside negative pressure that forms of second compartment 4, works as when forming negative pressure in the second compartment 4, because the inside and outside air pressure balance hole that runs through has been seted up on the elastic membrane layer 3, thereby make the inside and outside both sides air pressure balance of elastic membrane layer 3, force face skin 2 to negative pressure space one side arc uplift this moment under the negative pressure effect, face skin 2 arc uplift promotes the laminating face skin 2 is uplift in the lump of elastic membrane layer 3, at this moment the injection subassembly is in the in-process of elastic membrane layer 3 arc uplift keeps perpendicular with the face skin 2 of needle position to on the one hand guaranteed the inseparable laminating of face skin 2 and elastic membrane layer 3, on the other hand makes injection subassembly perpendicularly puncture into face skin 2, guaranteed that different uplift positions all can reach predetermined subcutaneous degree of depth, and puncture path is shortest, and the face skin 2 injury nature reduces to minimum simultaneously effectively prevents the weeping that leads to because of puncture degree of not enough.

In this application, the injection assembly includes a plurality of needle seats 7 and puncture needles 6 arranged at intervals, and the needle seats 7 are vertically arranged on the elastic membrane layer 3, and the puncture needles 6 penetrate through the needle seats 7 along the axis of the needle seats 7. The end of the needle 6 remote from the first compartment 24 penetrates the elastic membrane layer 3, and the end of the needle 6 near the first compartment 24 communicates with the dosing assembly.

Specifically, the puncture needle 6 is communicated with the administration assembly through the administration hose 15, and after the injection enters the administration assembly, the injection enters the puncture needle 6 through the administration hose 15.

Specifically, the needle seats 7 are in one-to-one correspondence with the puncture needles 6, and one puncture needle 6 corresponds to one needle seat 7.

The number of the needle seats 7/the puncture needles 6 can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 and the like, and the number of the needle seats 7 and the puncture needles 6 can be determined according to actual needs.

Specifically, a plurality of the needle holders 7 are arranged in a matrix.

Specifically, the needle seat 7 may have a hollow cylindrical shape, a hollow prismatic shape, a hollow mesa shape, or the like.

Specifically, the puncture needle 6 can move up and down within the needle holder 7.

Specifically, the end of the puncture needle 6 remote from the first compartment 24 has a tip, i.e. the outer diameter of the end of the puncture needle 6 remote from the first compartment 24 is gradually smaller to facilitate the puncture.

In the application, the water light injection needle also comprises a pneumatic control lifting part and/or a hydraulic control lifting part,

the pneumatic lifting part is used for driving the puncture needle to lift;

In this application, the pneumatic lifting portion includes a pumping plate 28, a sealing sleeve 18, and a sealing piston 17.

A sealing sleeve 18 is arranged in one end of the needle seat 7, which is away from the elastic membrane layer 3, and the puncture needle 6 penetrates through the sealing sleeve 18 and extends out of the needle seat 7. A movable sealing piston 17 is also arranged in the needle seat 7, the sealing piston 17 is sleeved on the puncture needle 6, and the needle seat 7, the sealing piston 17 and a sealing sleeve 18 form a pumping area 19.

Specifically, the sealing sleeve 18 has a certain elasticity, and may be a silicone sealing sleeve 18 or a rubber sealing sleeve 18.

The shape of the sealing sleeve 18 is the same as that of the part, which is in contact with the sealing sleeve 18, inside the needle seat 7, and the outer edge of the sealing sleeve 18 is tightly attached to the inner wall of the needle seat 7, so that the sealing sleeve 18 can seal the top of the needle seat 7.

In particular, the sealing piston 17 has a certain elasticity, which may be a silicone sealing sleeve 18 or a rubber sealing sleeve 18.

The shape of the sealing piston 17 is the same as that of the contact between the inner part of the needle seat 7 and the sealing piston 17, and the outer edge of the sealing piston 17 is closely attached to the inner wall of the needle seat 7, so that the sealing piston 17 can divide the needle seat 7 into two areas which are not communicated.

Specifically, the sealing piston 17 is fixed with the puncture needle 6, and the sealing piston 17 can drive the puncture needle 6 to move up and down in the needle seat 7.

As shown in fig. 3, a pumping plate 28 is disposed in the second compartment 4, an outer edge of the pumping plate 28 is connected with the housing 1, the needle seat 7 is disposed perpendicular to the pumping plate 28, a plurality of first through holes 29 are formed in the pumping plate 28, and the needle seat 7 penetrates through the first through holes 29.

Specifically, the number of the first through holes 29 is the same as the number of the needle holders 7, and one first through hole 29 corresponds to one needle holder 7.

Specifically, the first through hole 29 has an inner diameter larger than the outer diameter of the needle holder 7.

A first opening is formed in the needle seat 7 at a position penetrating the first through hole 29;

the connection between the housing and the pumping plate 28 is provided with an air vent, a first flow passage is provided in the pumping plate 28, and the air vent is communicated with the first opening through the first flow passage, so that air is introduced into/pumped out of the pumping area 19 to regulate and control the lifting of the puncture needle 6.

Specifically, the first opening is connected with the pumping hose 20, and the pumping hose 20 is located in the first through hole 29, the pumping hose 20 is far away from the first opening one end with the first runner intercommunication, the air vent passes through first runner, pumping hose 20 and first opening with the pumping area 19 intercommunication, adopts such design can be greatly less pumping hose 20's length of use, and then prevents intertwining between the pumping hose 20 influences the normal use of water light injection needle.

Specifically, the air vent hole may be directly connected to the air pumping device, and the air vent hole may be connected to the air pumping tube 10, and connected to the air pumping device through the air pumping tube 10.

Specifically, the pumping/deflating operation is performed in the air vent hole by the external air pumping device, and as the air in the air vent hole is led into/out of the air pumping area 19, positive/negative pressure is generated in the air pumping area 19 so as to force the sealing piston 17 to lift/slide in the needle seat 7, and the sealing piston 17 drives the puncture needle 6 to stretch/retract in the process of lifting and sliding, so that the needle insertion or retraction of the puncture needle 6 is completed.

In this application, the hydraulic control lifting part includes a limiting ring 23, an annular telescopic sleeve 21 and a lifting adjusting piston 22.

As shown in fig. 4, a limiting ring 23 is further disposed in the needle seat 7, the limiting ring 23 is movably sleeved on the puncture needle 6, and the limiting ring 23 is located at one side of the sealing piston 17 away from the pumping air region 19.

Specifically, the limiting ring 23 may move within the hub 7, i.e. the radial dimension of the limiting ring 23 is smaller than the radial dimension of the inner wall of the hub 7.

Specifically, the stopper ring 23 is movable in the axial direction of the puncture needle 6.

An annular telescopic sleeve 21 is fixedly arranged in the needle seat 7, and the annular telescopic sleeve 21 is positioned below the limiting ring 23;

the limiting ring 23 is provided with a lifting adjusting piston 22 on the surface of one side, which is away from the sealing piston 17, of the limiting ring 23, and one end, which is away from the limiting ring 23, of the lifting adjusting piston 22 stretches into the annular telescopic sleeve 21.

Specifically, the lifting adjusting piston 22 has a hollow barrel-shaped structure.

Specifically, the puncture needles 6 penetrate through the axes of the limiting ring 23, the lifting adjusting piston 22 and the annular telescopic sleeve 21.

Specifically, the annular telescopic sleeve 21 is composed of an annular accommodating groove and a puncture channel assembly positioned on the axis of the annular accommodating groove, the puncture needle 6 penetrates through the puncture channel, and the sealing piston 17 extends into the annular accommodating groove.

The hydraulic control lifting part comprises a liquid injection plate 30, the liquid injection plate 30 is positioned in the second compartment 4, and the outer edge of the liquid injection plate 30 is connected with the shell 1;

the liquid injection plate 30 and the pumping plate 28 are arranged in parallel, a plurality of second through holes 31 are formed in the liquid injection plate 30, the second through holes 31 are located right below the first through holes 29, and the needle seat 7 sequentially penetrates through the first through holes 29 and the second through holes 31.

A second opening is formed at the position of the needle seat 7 penetrating the second through hole 31; a through hole opposite to the second opening is provided in a side wall of the annular expansion sleeve 21,

the second runner is arranged in the liquid injection plate 30, and the second runner is communicated with the second opening and the through hole, preferably, the second runner is communicated with the second opening and the through hole through the liquid injection hose 25, and by adopting such a design, the use length of the liquid injection hose 25 can be greatly reduced, and further, the liquid injection hose 25 is prevented from being intertwined, so that the normal use of the water-light injection needle is affected.

Specifically, the injection liquid enters the annular telescopic sleeve 21 through the injection liquid hose 25, and when more liquid enters the annular telescopic sleeve 21, the buoyancy of the liquid makes the lifting adjusting piston 22 move upwards, so as to drive the limiting ring 23 to move upwards, and further the sealing piston 17 can be limited to descend too quickly.

In the present application, a baffle 14 is disposed in the housing 1, an outer edge of the baffle 14 is connected to an inner wall of the housing 1, and the housing 1 is divided into the first compartment 24 and the second compartment 4 by the baffle 14; a guide post 16 perpendicular to the guide plate 14 is disposed in the middle of the side surface of the guide plate 14 facing the first compartment 24, and a plurality of guide flow passages are disposed in the guide plate 14 and are communicated with the puncture needle 6 through the administration hose 15.

Specifically, a liquid injection port is disposed at a connection position between the baffle 14 and the guide column 16, a plurality of guide flow channels are all communicated with the liquid injection port, and a plurality of guide flow channels can be mutually independent or mutually communicated. When the injection flows down from the guide column 16, the injection firstly enters the injection port, then enters the guide flow channel, and finally enters the administration hose 15 from the guide flow channel, thereby entering the puncture needle 6.

In particular, the number of the administration hoses 15 is the same as the number of the puncture needles 6, one puncture needle 6 corresponds to one administration hose 15,

in this application, the subassembly of dosing includes the conical seat of dosing 11, the conical seat of dosing 11 will the guide post 16 is kept away from the one end cover of guide plate 14 is located in the conical seat of dosing 11, just the conical seat of dosing 11 can follow the axial lift of guide post 16, guide post 16 with the department of meeting of conical seat of dosing 11 in close contact.

Specifically, the administration cone 11 may have a hollow structure, for example, a hollow cylindrical shape, a hollow prismatic shape, a hollow truncated cone shape, or a hollow truncated cone shape. The injection is injected through the dosing cone 11 and then flows along the guide post 16 into the guide plate 14.

In this application, the outer circumference of the end of the dosing cone seat 11 near the baffle 14 is sleeved with an adjusting piston 27, the baffle 14 is provided with an annular groove 26, the annular groove 26 is coaxial with the baffle column 16, and the adjusting piston 27 is movably disposed in the annular groove 26. The medicine feeding conical seat 11 can be lifted, so that the adjusting piston 27 is driven to lift, and the adjusting piston 27 can be driven to stir the liquid in the annular groove 26.

In this application, a first transition flow passage is provided in the baffle 14, and is communicated with the annular groove 26, a second transition flow passage is provided in the housing 1, and is communicated with the first transition flow passage, and the second flow passage is communicated with the annular groove 26 through the second transition flow passage and the first transition flow passage.

Specifically, the first transition runner may be communicated with the liquid injection port, or may be communicated with the flow guiding runner, after the injection liquid enters the liquid injection port, a part of the injection liquid may enter the annular groove 26 through the first transition runner, and a part of the injection liquid enters the annular accommodating groove through the first transition runner, the second runner, and the liquid injection hose 25. The adjusting piston 27 is driven to lift by lifting the drug delivery conical seat 11, so that the injection flows in the annular groove 26 and the annular accommodating groove, the limiting ring 23 is pushed to lift when the injection enters the annular accommodating groove, at the moment, the descending stroke of the puncture needle 6 is shortened, otherwise, the descending stroke of the puncture needle 6 is prolonged, and the adjustment of the needle penetration depth of the puncture needle 6 is realized in this way.

In the present application, the water light injection needle further comprises an adjusting knob 8, wherein the adjusting knob 8 is provided with a through hole 9 along the axial direction thereof;

the first compartment 24 comprises a small diameter part and a large diameter part, the large diameter part is connected with the second compartment 4, and the small diameter part extends into the through hole 9 to be buckled and connected with the adjusting knob 8;

the end of the dosing cone seat 11, which is far away from the second compartment 4, is provided with a connecting part extending out of the first compartment 24, the periphery of the connecting part is provided with external threads 12, and the inner wall of the through hole 9 is provided with internal threads matched with the external threads 12. With such a design, by rotating the adjusting knob 8, the dosing cone seat 11 can be moved relative to the guide post 16 (i.e. the dosing cone seat 11 moves up and down), so as to drive the adjusting piston 27 to move up and down.

The application the water light injection needle, during the injection, through to push away injection liquid in the administration conical seat 11, the injection liquid gets into behind the administration conical seat 11 along guiding post 16 gets into the guide plate 14, then through the guiding flow channel gets into in proper order in the hose 15 of dosing and the pjncture needle 6. Then the air in the second compartment 4 is pumped away through the air pumping hole, a negative pressure environment is formed in the second compartment 4, the negative pressure promotes the facial skin 2 to form arc-shaped bulges, the arc-shaped bulges formed by the facial skin 2 push the elastic membrane layer 3 to deform in corresponding radians, so that the facial skin 2 is tightly attached to the elastic membrane layer 3, and at the moment, the puncture needle 6 is vertical to the facial skin 2 at the needle inserting position in the arc-shaped bulge process of the elastic membrane layer 3.

Then, the air is discharged into the air guide hole through an external air pumping device, and the air in the air guide hole enters the air pumping area 19, so that positive/negative pressure is generated in the air pumping area 19 to force the sealing piston to slide downwards in the needle seat 7, and the sealing piston drives the puncture needle 6 to move in the descending sliding process, so that the needle insertion of the puncture needle 6 is completed. Meanwhile, the drug delivery conical seat 11 is driven to lift by rotating the adjusting knob 8, the drug delivery conical seat 11 lifts and drives the adjusting piston 27 to lift, injection is enabled to flow in the annular groove 26 and the annular accommodating groove by lifting of the adjusting piston 27, the limiting ring 23 is pushed to lift when the injection enters the annular accommodating groove, at the moment, the descending stroke of the puncture needle 6 is shortened, different uplift positions can reach preset subcutaneous depth, the puncture path is shortest, and leakage caused by insufficient puncture depth is effectively prevented when the damage to the facial skin 2 is reduced to the minimum.

Although described above in connection with the embodiments of the present application, the present application is not limited to the specific embodiments and fields of application described above, which are intended to be illustrative, instructive, and not limiting. Those skilled in the art, having the benefit of this disclosure, may make numerous forms, and equivalents thereof, without departing from the scope of the utility model as defined by the claims.

Claims

1. A water light injection needle is characterized by comprising a shell, wherein the shell is internally provided with a first compartment and a second compartment,

2. The water light injection needle according to claim 1, wherein a sealing rubber ring is arranged on the outer edge of one end of the shell, which is contacted with the facial skin of the subject, and the sealing rubber ring and the elastic membrane layer form an accommodating space;

3. The hydro-optical injection needle of claim 1, wherein the injection assembly comprises a plurality of spaced needle holders and piercing needles, the needle holders are vertically disposed on the elastic membrane layer, and the piercing needles penetrate the needle holders along the axis of the needle holders.

4. A water light injection needle as claimed in claim 3, wherein the end of the piercing needle remote from the first compartment penetrates the elastic membrane layer, the end of the piercing needle proximal to the first compartment being in communication with the administration assembly.

5. The water light injection needle of claim 3, further comprising a pneumatic lifting part,

the pneumatic lifting part is used for driving the puncture needle to lift.

6. The water light injection needle of claim 5, further comprising a hydraulic control lifting part,

7. The water light injection needle of claim 6 wherein the pneumatic lifting portion comprises a pumping plate, a sealing sleeve and a sealing piston,

the sealing sleeve is positioned at one end of the needle seat, which is away from the elastic membrane layer, and the puncture needle penetrates through the sealing sleeve and extends out of the needle seat;

8. The water light injection needle of claim 7 wherein a first opening is provided at a location where said hub passes through said first through hole;

9. The water light injection needle of claim 7 wherein the hydraulic control lifting part comprises a limiting ring, an annular telescopic sleeve and a lifting adjusting piston,

10. The hydro-optical injection needle of claim 9 wherein the hydraulically controlled lifting portion comprises a liquid injection plate, the liquid injection plate being located within the second compartment, an outer edge of the liquid injection plate being connected to the housing;

11. The water light injection needle of claim 10 wherein a second opening is provided at a location where the needle hub passes through the second through hole; a through hole opposite to the second opening is arranged on the side wall of the annular telescopic sleeve,

12. The hydro-optical injection needle of claim 11 wherein the second flow passage communicates with the second opening and through bore through a fluid injection hose.

13. The water light injection needle of claim 11 wherein a baffle is disposed within the housing, an outer edge of the baffle being connected to an inner wall of the housing, the housing being divided into the first compartment and the second compartment by the baffle;

14. The water light injection needle of claim 13 wherein said administration assembly comprises an administration conical seat, wherein said administration conical seat is sleeved with said end of said flow guiding post away from said flow guiding plate in said administration conical seat, and said administration conical seat is liftable along the axial direction of said flow guiding post, and said flow guiding post is in close contact with the junction of said administration conical seat.

15. The water light injection needle of claim 14, wherein the outer circumference of the end of the administration cone seat near the guide plate is sleeved with an adjusting piston,

16. The water light injection needle of claim 15 wherein a first transition flow passage is provided in the baffle plate, the first transition flow passage is in communication with the annular groove, a second transition flow passage is provided in the housing in communication with the first transition flow passage, and the second flow passage is in communication with the annular groove through the second transition flow passage and the first transition flow passage.

17. The water light injection needle of claim 14 further comprising an adjustment knob provided with a through hole along an axial direction thereof;