CN212491026U

CN212491026U - Five-hole syringe needle with negative pressure

Info

Publication number: CN212491026U
Application number: CN202020674821.4U
Authority: CN
Inventors: 孙家春
Original assignee: Hefei Corista Medical Equipment Co ltd
Current assignee: Li Longjun
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-02-09
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a five-hole negative pressure syringe needle, the five-needle luer joint end of spiro union five-needle carousel is glued fixedly with five needle separation blades and five needle file glue, five needle file connection five needle tubes, the connecting hole two that link up in the five-needle luer joint communicates with the needle tube inside, pack into five needle shells and can axially slide the boss step part of five-needle file, five needle separation blades and five-needle luer joint of taking the needle tube of connecting an organic whole, five needle carousel and five needle shells snap-in connection and five needle carousel can surround five needle shells step and rotate; during five needle carousel unidirectional rotation, drive five needle luer connector and advance axial displacement and make five needle tubes expose five outer ends that the conical column of needle shell is six in step, when five needle carousel reverse to rotate, five needle tubes retract simultaneously to the play pinhole of conical column six, the utility model discloses in ability negative pressure makes the needle point that the skin is compact and rebound made the needle tube get into the skin, can five needles advance medicine simultaneously during the injection, reduce injection time, more be favorable to even face covering type injection.

Description

Five-hole syringe needle with negative pressure

Technical Field

The utility model relates to the field of beauty equipment, in particular to a five-hole negative pressure injection needle.

Background

At present, most of the common water-light injection needles are single needles, and high-end injection products such as hyaluronic acid, collagen, botulinum toxin, PRP autologous cells and the like which are lost due to aging of a human body are injected into the dermis layer of the skin by utilizing the negative pressure principle, so that sufficient water is absorbed and stored in the skin to wake up the cell regeneration function, the withered and broken cells of the skin are restored, and the firmness, smoothness and elasticity of the skin are reconstructed in a short period. The structure of the single needle type is more conventional, during injection, the skin can be penetrated after sinking due to the instant when the needle contacts the skin during single needle injection, and the sinking degree is different according to different injection areas, so that the injection depth cannot be accurately controlled, and certain potential safety hazard exists; meanwhile, when a professional holds the injector to insert the injection needle on the water injection needle into the skin of a human body, the skin can sink downwards under the pressure of the needle in the process that the needle is inserted into the skin, the needle can penetrate the skin to enter the subcutaneous part under the action of enough downward external force of the needle, the skin can rebound, the similar needle inserting depth is not controlled well, and the pain of the human body is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, the utility model provides a five-hole negative pressure syringe needle, five needle luer connector and five needle carousel spiro union of five needle syringe needle bodies, end connection five needle separation blades and five needle file and glue are glued fixedly, five needle file connection five needle pipes, connecting hole two that link up in the five needle luer connector communicates with the needle pipe is inside, liquid in the syringe flows into the pinhole and exports of needle pipe from through-hole four after flowing into the runner from feed liquor hole two, five needle file, five needle separation blades and the boss step part of five needle luer connector of taking the needle pipe of connection an organic whole are packed into five needle shells and can axially slide, five needle carousel and five needle shells buckle formula are connected and five needle carousel can surround five needle shells step rotation; during five needle carousel unidirectional rotation, drive five needle luer connector and advance axial displacement and make five needle tubes expose five outer ends that the conical column of needle shell is six in step, when five needle carousel reverse to rotate, five needle tubes retract simultaneously to the play pinhole of conical column six, the utility model discloses in ability negative pressure makes the needle point that the skin is compact and rebound made the needle tube get into the skin, can five needles advance medicine simultaneously during the injection, reduce injection time, more be favorable to even face covering type injection.

In order to achieve the purpose, the utility model provides a five-hole negative pressure syringe needle, contain five needle syringe needle bodies 1, five needle syringe needle bodies establish five needle luer connects, five needle luer connects's flange lower extreme establishes the connecting pipe, and the flange upper end is the extension section, the external screw thread is established to the upper end of extension section, the external screw thread upper end is established protruding step, step two is established to the boss step upper end, establishes connecting hole two in five needle luer connects's the connecting pipe, connecting hole two communicates feed liquor hole two of upper end, feed liquor hole two and upper end main liquid outlet intercommunication, the liquid outlet upwards runs through the up end of step two, step two up end establishes four criss-cross runners, and the liquid outlet that the upper end connects the liquid storage hole is in a plurality of crossing centers that the rice word is criss-cross sets up, and the counter bore is all established to the end of four;

the five-needle rotary table is characterized in that a lengthened step is arranged at the lower end of a rotary table main body of the five-needle rotary table, a screw hole is formed in the lengthened step, a third counter bore is formed in the upper end of the screw hole, a plurality of buckles are uniformly distributed on the upper edge of the inner part of the third counter bore, and an oblique angle is formed at the inlet end of each buckle; the screw hole of the five-needle rotary table is in threaded connection with the external thread of the five-needle luer connector, and the buckling direction of the five-needle rotary table is consistent with the flow channel direction of the five-needle rotary table;

a square hole V with a downward orifice is formed in a needle seat main body of the square five-needle seat, five conical columns V are uniformly distributed on the upper end face of the needle seat main body, a fixing needle hole is formed in each conical column V, the lower end of each fixing needle hole is communicated with the square hole V, a needle tube is arranged in each fixing needle hole, a five-needle separation blade is arranged in each square hole V, and the needle tube and the fixing needle holes are glued and fixed by glue;

the upper end face of the square five-needle baffle plate is uniformly provided with five crossed bosses IV in a shape like a Chinese character 'mi', the bosses IV are internally provided with through holes IV which are communicated with four crossed runners which are concave in the shape like a Chinese character 'mi' and arranged on the lower end face of the five-needle baffle plate;

the five-needle separation blade is arranged in the square hole five of the five-needle base, the four end faces of the boss are attached to the bottom of the square hole five, and the periphery of the five-needle separation blade is fixed with the inner wall of the square hole five through glue;

the boss step end face of a five-needle luer connector in threaded connection with the five-needle turntable is attached to one end face of the five-needle blocking piece, the flow channel four of the five-needle blocking piece is in butt joint with the flow channel opening of the boss step end face to form a closed space, the main liquid outlet hole is communicated with the through hole four in the middle of the five-needle blocking piece, and the periphery of the boss step of the luer connector is fixed to the inner wall of the square hole five through glue;

after the five-needle seat, the five-needle separation blade, the needle tube and the five-needle luer connector are installed, glue is adhered and fixed into a non-detachable integral assembly, a connecting hole II, a liquid inlet hole II, a liquid outlet hole and a flow channel which are communicated with a flow channel IV and a through hole IV of the five-needle separation blade are communicated in the five-needle luer connector, the through hole IV is communicated with the needle tube fixed in a needle fixing hole of the five-needle seat, and liquid in the injector flows into a closed space formed by butt joint of the flow channel IV and the flow channel IV from the liquid inlet hole II and then enters a needle hole of;

the five-needle shell comprises a main body, wherein the lower end of the main body of the five-needle shell is provided with a step, the outer circumference of the step is provided with a flange type connecting step, the inner end face of the connecting step is in a right angle, the outer end face of the connecting step is provided with a six-inclined-opening, the upper end of the main body is provided with a square bin, five upwards-extending conical columns are uniformly distributed in the square bin, a negative pressure bin is formed between the six conical columns and the four walls of the square bin, the outer wall of the square bin is provided with a negative pressure pipe extending outwards, a negative pressure hole in the negative pressure pipe is communicated with the negative pressure bin in the square bin, a needle outlet hole is formed in the six;

the five-needle stand and the five-needle catch piece with the needle tube and the boss step part of the five-needle luer connector which are connected into a whole are arranged in the six square holes of the five-needle shell in a sliding mode and can slide axially, the buckle of the five-needle rotary table is elastically contracted inwards and is buckled into the connecting step of the five-needle shell in an axially moving mode and then is recovered, the five-needle rotary table is connected with the five-needle shell and is limited axially, and the five-needle rotary table can rotate around the step of the five-needle shell;

the square protective plug head is internally provided with a square hole eight of the blind hole, the upper end of the protective plug head is provided with a step eight, the lower end of the step eight is provided with a connecting sleeve of which the appearance is smaller than that of the step eight, the lower end of the connecting sleeve is an inlet of the square hole eight, the connecting sleeve is connected with a negative pressure bin of a square bin of the five-needle shell in an inserting manner, and the square hole eight is sealed inside the conical cylinder six;

when the five-needle turntable rotates in one direction, the five-needle luer connector screwed with the five-needle turntable moves forwards and axially, and the axially moving five-needle luer connector synchronously pushes the five-needle seat with the needle tube and the five-needle retainer to move forwards and axially, so that the needle tube synchronously moves forwards in the needle outlet hole in the conical column six of the five-needle shell until the needle point of the head part of the needle tube is exposed out of the outer end surface of the conical column six of the five-needle shell;

when the five-needle turntable rotates reversely, the five-needle luer connector screwed with the five-needle turntable moves backwards and retracts axially, the five-needle seat with the needle tube and the five-needle retaining sheet are pulled synchronously by the axially moving five-needle luer connector to move backwards and retract axially, so that the needle tube moves backwards and retracts synchronously in the needle outlet hole in the six conical column of the five-needle shell until the needle point of the needle tube head exposed out of the outer end surface of the six conical column of the five-needle shell moves backwards and retracts into the needle outlet hole in the six conical column of the five-needle shell.

And further arranging, wherein the end surface of the conical column six is flush with the end surface of the square bin.

Further, the moving distance of the needle tube is equal to the distance L from the upper end surface of the five-needle seat to the bottom of the six square holes of the five-needle shell.

The five-needle luer connector, the five-needle blocking piece, the five-needle shell and the five-needle turntable are further made of PP.

Further, the five-needle seat is made of PC.

The needle outlet hole is a taper hole, the taper of the conical cylinder five is the same as that of the needle outlet hole, and the size of the conical cylinder five is smaller than that of the needle outlet hole.

And further setting that the length of the needle tube extending out of the six outer end faces of the conical column of the five-needle shell is not more than 4 mm.

Further, the length of the needle tube retracted into the six outer end faces of the conical column of the five-needle shell is not less than 1 mm.

Further, the thread pitches of the external thread of the five-needle luer connector and the screw hole of the five-needle turntable are both 1mm double-lead thread.

Further, the negative pressure pipe is a conical pipe with the inner end diameter larger than the outer end diameter.

The utility model has the advantages that: the utility model discloses in ability negative pressure makes the skin compact and the needle point that upwards moves messenger's needle tubing gets into the skin, can five needles advance the medicine simultaneously during the injection, reduce the injection time, more be favorable to even face covering type injection.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the five-needle housing of FIG. 2;

FIG. 4 is a bottom view of FIG. 3;

FIG. 5 is a top view of FIG. 3;

FIG. 6 is a schematic view of the five-needle hub of FIG. 2;

FIG. 7 is a bottom view of FIG. 6;

FIG. 8 is a top view of FIG. 6;

fig. 9 is a schematic view of the five-pin luer fitting of fig. 2;

FIG. 10 is a bottom view of FIG. 9;

FIG. 11 is a top view of FIG. 9;

FIG. 12 is a schematic view of the five needle dial of FIG. 2;

FIG. 13 is a bottom view of FIG. 12;

FIG. 14 is a top view of FIG. 12;

FIG. 15 is a schematic view of the five needle shield of FIG. 2;

FIG. 16 is a bottom view of FIG. 15;

FIG. 17 is a top view of FIG. 15;

fig. 18 is a schematic view of the protective plug 8 of fig. 1;

fig. 19 is a bottom view of fig. 18.

In the figure: the five-needle injection needle comprises a five-needle injection needle body 1, a five-needle luer connector 2, a connecting hole II 201, a liquid inlet hole II 202, a main liquid outlet hole 203, a step II 204, a liquid storage hole 205, a flow channel 206, a boss step 207, external threads 208, an extension section 209, a flange 210, a connecting pipe 211, a counter bore 212, a five-needle rotary table 3, a rotary table main body 301, a screw hole 302, an elongated step 303, a counter bore III 304, a buckle 305, a five-needle baffle 4, a boss IV 401, a through hole IV 402, a flow channel IV 403, a five-needle seat 5, a needle seat main body 501, a square hole V502, a conical cylinder V503, a needle fixing hole 504, a five-needle shell 6, a negative pressure pipe 601, a negative pressure hole 6011, a step 602, a main body 603, a square hole VI 604, a connecting step 605, an oblique port VI, a negative pressure bin 607, a needle outlet hole 608, a conical cylinder VI 609.

Detailed Description

As shown in fig. 1 and 2: the technical proposal of the utility model is further specified, a five-hole negative pressure injection needle head comprises a five-needle luer connector 2, a five-needle rotary table 3, a five-needle catch 4 and a five-needle base 5, the five-needle injection needle comprises a five-needle shell 6 and a needle tube 7, wherein a five-needle luer connector 2 of a five-needle injection needle body 1 is in threaded connection with a five-needle rotary table 3, the end part of the five-needle luer connector 2 is connected with a five-needle blocking piece 4 and a five-needle seat 5 and is fixed by glue, the five-needle seat 5 is connected with five needle tubes 7, a through connecting hole II 201 in the five-needle luer connector 2 is communicated with the inside of the needle tube 7, the integrally connected five-needle seat 5 with the needle tubes, the five-needle blocking piece 4 and a boss step 207 part of the five-needle luer connector 2 are arranged in a square hole six 604 of the five-needle shell 6 and can axially slide, the five-needle rotary table 3 is connected with the five-needle shell 6 in a buckling mode; when the needle tube 7 is adjusted to axially extend and retract, the five-needle turntable 3 is rotated, and the five-needle turntable 3 and the five-needle shell 6 are axially locked and cannot axially move, so that the five-needle luer connector 2 in threaded connection with the five-needle turntable 3 axially moves and can drive the fixed integrated five-needle blocking piece 4, the five-needle seat 5 and the five needle tubes 7 to synchronously axially move in six 604 square holes of the five-needle shell 6, the function that the five needle tubes 7 extend out of the heads of the five-needle shell 6 and the function that the five needle tubes 7 retract inwards into the heads of the five-needle shell 6 are achieved, the needle tubes 7 can be protected from being isolated from the outside, and secondary puncture and pollution are prevented.

As shown in fig. 9, 10 and 11, the five-needle injection needle body 1 is provided with a five-needle luer 2, a connecting pipe 211 is arranged at the lower end of a flange 210 of the five-needle luer 2, an extending section 209 is arranged at the upper end of the flange 210, an external thread 208 is arranged at the upper end of the extending section 209, a convex step 207 is arranged at the upper end of the external thread 208, a connecting hole two 201, a liquid inlet hole two 202 and a main liquid outlet hole 203 are sequentially arranged in the connecting pipe 211 of the five-needle luer 2 and are communicated with each other, the liquid outlet hole 203 upwards penetrates through a middle liquid outlet hole 203 in a cross center position in a shape of a Chinese character 'mi' in four crossed flow channels 206 arranged on the upper end surface of the step two 204 and are communicated with each other, counter bores 212 are arranged at the tail ends of the four flow channels 206, and in use, a liquid medicine in an injector enters;

as shown in fig. 12, 13 and 14, a lengthened step 303 is arranged at the lower end of a rotating disc main body 301 of the five-needle rotating disc 3, a screw hole 302 is arranged in the lengthened step 303, a counter bore III 304 is arranged at the upper end of the screw hole 302, a plurality of buckles 305 are uniformly distributed on the inner upper edge of the counter bore III 304, an oblique angle is arranged at the inlet end of each buckle 305, so that smooth elastic deformation can be conveniently clamped in when the five-needle rotating disc is connected with the five-needle shell 6, and a guiding effect during buckle type connection can be achieved; the screw hole 302 of the five-needle rotary disc 3 is in threaded connection with the external thread 208 of the five-needle luer 2, and the direction of the buckle 305 of the five-needle rotary disc 3 is consistent with the direction of the flow channel 206 of the five-needle rotary disc 3; after the needle tube 7 is assembled, the rotating motion of the five-needle rotating disc 3 can be converted into the axial motion of the screwed five-needle luer connector 2 by utilizing the transmission mode of the threads when the five-needle rotating disc 3 is rotated, so that the telescopic function of the needle tube 7 is achieved.

As shown in fig. 6, 7 and 8, a square hole five 502 with a downward opening is arranged in a needle base main body 501 of a square five-needle base 5, five conical columns five 503 are uniformly distributed on the upper end surface of the needle base main body 501, the lower ends of needle fixing holes 504 in the conical columns five 503 are communicated with the square hole five 502, needle tubes 7 are arranged in the needle fixing holes 504 and are glued and fixed by glue, five-needle retaining pieces 4 are arranged in the square hole five 502, and when the five-needle base 5 moves axially, the needle tubes 7 can also move axially synchronously.

As shown in fig. 15, 16 and 17, five bosses four 401 crossed in a shape like a Chinese character 'mi' are uniformly distributed on the upper end surface of the square five-needle baffle plate 4, through holes four 402 are formed in the bosses four 401, and the through holes four 402 are communicated with four flow passages four 403 crossed in a shape like a Chinese character 'mi' and recessed in the lower end surface of the five-needle baffle plate 4.

The five-needle baffle plate 4 is arranged in the square hole five 502 of the five-needle base 5, the end surface of the boss four 401 is attached to the hole bottom of the square hole five 502, and the periphery of the five-needle baffle plate 4 is fixed with the inner wall of the square hole five 502 by glue; the end face of a boss step 207 of a five-needle luer connector 2 in threaded connection with the five-needle turntable 3 is attached to one end face of a five-needle baffle plate 4, a flow channel four 403 of the five-needle baffle plate 4 is in butt joint with an opening of a flow channel 206 of the end face of the boss step 207 to form a closed space, a main liquid outlet hole 203 is communicated with a through hole four 402 in the middle of the five-needle baffle plate 4, and the periphery of the boss step 207 of the luer connector 2 is fixed with the inner wall of a square hole five 502 by glue; after the five-needle seat 5, the five-needle baffle 4, the needle tube 7 and the five-needle luer 2 are installed, glue is adhered and fixed into a non-detachable integral component, a connecting hole II 201, a liquid inlet hole II 202, a liquid outlet hole 203 and a flow channel 206 which are communicated with a flow channel IV 403 and a through hole IV 402 of the five-needle baffle 4 are communicated with the five-needle luer 2, the through hole IV 402 is communicated with the needle tube 7 which is fixed in a needle fixing hole 504 of the five-needle seat 5, and liquid in the injector flows into a closed space formed by butt joint of the flow channel IV 403 and the flow channel 206 from the liquid inlet hole II 202 and then enters a needle hole of the needle tube 7 from the;

as shown in fig. 3, 4 and 5, a step 602 is arranged at the lower end of a main body 603 of the five-pin housing 6, a flange type connecting step is arranged at the outer circumference of the step 602, the inner end surface of the connecting step 605 is a right angle, an oblique port six 606 is arranged at the outer end surface of the connecting step for smooth guiding insertion when the connecting step is connected with the five-pin turntable 3, a square bin 610 is arranged at the upper end of the main body 603, five conical columns six 609 extending upwards are uniformly distributed in the square bin 610, a negative pressure bin 607 is formed between the conical columns six 609 and the four walls of the square bin 610, a negative pressure pipe 601 extending outwards is arranged on the outer wall of the square bin 610, a negative pressure hole 6011 in the negative pressure pipe 601 is communicated with the negative pressure bin 607 in the square bin 610, a pin outlet hole 608 is arranged in the conical columns six 609, and the;

the five-needle seat 5 with the needle tube 7, the five-needle catch piece 4 and the boss step 207 part of the five-needle luer connector 2 which are connected into a whole are slidably arranged in the square hole six 604 of the five-needle shell 6 and can axially slide, the buckle 305 of the five-needle rotary table 3 elastically contracts inwards and axially moves to buckle into the connecting step 605 of the five-needle shell 6 to recover, so that the five-needle rotary table 3 is connected with the five-needle shell 6 and axially limited, and the five-needle rotary table 3 can rotate around the step 602 of the five-needle shell 6.

As shown in fig. 18 and 19, a square hole eight 803 of a blind hole is arranged in the square protective plug 8, a step eight 801 is arranged at the upper end of the protective plug 8, a connecting sleeve 802 with the appearance smaller than the step eight 801 is arranged at the lower end of the step eight 801, the lower end of the connecting sleeve 802 is an inlet of the square hole eight 803, the connecting sleeve 802 is inserted into and connected with a negative pressure bin 607 of a square bin 610 of the five-needle housing 6 in a damping manner, and the conical cylinder six 609 is sealed in the square hole eight 803.

In practical application, the axial in and out of the needle tube 7 is adjusted, when the five-needle turntable 3 rotates unidirectionally, the five-needle luer connector 2 screwed with the five-needle turntable 3 moves axially forwards, and the axially moving five-needle luer connector 2 synchronously pushes the five-needle seat 5 with the needle tube 7 and the five-needle baffle 4 to move axially forwards, so that the needle tube 7 synchronously moves forwards in the needle outlet hole 608 in the conical column six 609 of the five-needle shell 6 until the needle point of the head part of the needle tube 7 is exposed out of the outer end surface of the conical column six 609 of the five-needle shell 6;

when the five-needle turntable 3 rotates reversely, the five-needle luer connector 2 screwed with the five-needle turntable 3 moves backwards and retracts axially, the five-needle seat 5 with the needle tube 7 and the five-needle baffle 4 are pulled by the axially moving five-needle luer connector 2 synchronously to move backwards and retract axially, so that the needle tube 7 moves backwards and retracts synchronously in the needle outlet hole 608 in the conical column six 609 of the five-needle housing 6 until the needle point of the head part of the needle tube 7 exposed out of the outer end surface of the conical column six 609 of the five-needle housing 6 moves backwards and retracts into the needle outlet hole 608 in the conical column six 609 of the five-needle housing 6.

The end face of the conical column six 609 is flush with the end face of the square bin 610, so that the conical column six 609 can be conveniently attached to the skin of a human body when being applied.

The moving distance of the needle tube 7 is equal to the distance L from the upper end face of the five-needle seat 5 to the bottom of the square hole six 604 of the five-needle housing 6, the value of L is variable data, in practice, when the distance of L is the minimum value, the maximum value of the outer end face of the needle tube 7 exposed out of the five-needle seat 5 is obtained, and in practical application, the length of the needle tube 7 extending out of the outer end face of the conical column six 609 of the five-needle housing 6 is generally not more than 4 mm; when the distance L is the maximum value, the maximum value is the maximum value of the retraction of the needle tube 7 into the outer end face of the five-needle seat 5, and in practical application, the length of the retraction of the needle tube 7 into the outer end face of the conical column six 609 of the five-needle shell 6 is not less than 1 mm.

The five-needle luer connector 2, the five-needle baffle 4, the five-needle housing 6 and the five-needle turntable 3 are made of PP (polypropylene), are odorless and nontoxic, have regular and highly crystallized structures, are heat-resistant and corrosion-resistant, have low density and are the lightest general plastic; the five-needle seat 5 is made of PC, and has the advantages of good transparency, high mechanical strength, good toughness and heat resistance, high dimensional stability and low water absorption.

The pin outlet hole 608 is a taper hole, the taper of the conical five cylinder 503 is the same as that of the pin outlet hole 608, and the size of the conical five cylinder 503 is smaller than that of the pin outlet hole 608.

The thread pitch of the external thread 208 of the five-needle luer 2 and the thread hole 302 of the five-needle rotary table 3 are both 1mm double-lead threads, and the arrangement of the double-lead threads doubles the axial displacement of the five-needle luer 2 when the five-needle rotary table 3 is rotated for one circle.

The negative pressure pipe 601 is a conical pipe with the inner end diameter larger than the outer end diameter, so that negative pressure hoses with various apertures can be conveniently connected, and the applicability in practical application is improved.

When the five-needle injection needle is used, the connecting hole II 201 of the five-needle luer connector 2 of the five-needle injection needle body 1 is firstly arranged on a connector of an injector which is filled with liquid such as hyaluronic acid, a water light stock solution and the like, the negative pressure tube 601 of the five-needle shell 6 is connected with a negative pressure pump interface including but not limited to a water light gun through a negative pressure hose, then the injector which is connected with the five-needle injection needle body 1 is connected to the water light gun, when liquid is injected, liquid outlet parameters of the water light gun are set and then started, the five-needle turntable 3 is rotated to drive the five-needle luer connector 2 to move axially inwards, the needle point of the needle tube 7 in the needle outlet hole 608 of the five-needle shell 6 is synchronously and axially displaced to expose 2-4 mm, the conical column six 609 and the outer end face of the square bin 610, the needle points of the needle tubes 7 are all attached to the skin, the needle points of the needle tubes 7 elastically press the skin downwards but do not necessarily enter the skin; the water light gun is started, a negative pressure pump of the water light gun works, gas in the negative pressure bin 607 of the five-needle shell 6 is sucked out by connecting a negative pressure hose, so that the air pressure in the negative pressure bin 607 of the five-needle shell 6 is smaller than the atmospheric pressure, at the moment, under the action of the negative pressure, the skin of a person shrinks, is compact, bounces upwards to actively enter the needle point of the needle tube 7 by 2-4 mm until the skin is attached to the end face of the conical column six 609, the liquid such as the hyaluronic acid and the original liquid of the water light are filled into the lower layer of the skin quantitatively, regularly and uniformly, the pain feeling of the skin is greatly reduced, when the needle is inserted, the negative pressure enables the skin to be compact, the needle point of the needle tube moves upwards to enter the skin, the five needles can be simultaneously injected during injection, the injection time is shortened, the uniform surface coverage type injection is facilitated, the safety is high.

During injection, a water light gun pushes an injector to enable hyaluronic acid and water light stock solution in the injector to enter a liquid inlet hole II 202 of the five-needle luer 2, then flow through a main liquid outlet hole 203 to enter a closed space formed by butt joint of flow channels 206 on the end faces of four convex steps 207 of the five-needle luer 2 arranged in a shape like a Chinese character mi and a flow channel IV 403 of the five-needle baffle plate 4, and a central cross point and a through hole IV 402 at the tail end of the flow channel IV 403 of the five-needle baffle plate 4 are sent out to enter needle holes of five needle tubes 7 connected with five fixed needle holes 504 of the five-needle seat 5 to be sent out, and the hyaluronic acid and the water light stock.

When the needle tube 7 needs to retract into the needle outlet 608 of the five-needle housing 6, the five-needle rotary table 3 is rotated reversely to drive the five-needle luer 2 to move backward in an axial retraction manner, and the needle point of the needle tube 7 extending out of the needle outlet 608 of the five-needle housing 6 is synchronously displaced in an axial retraction manner and retracts into the needle outlet 608.

The utility model can be installed on the injector without using the water light gun to hold the injector for direct use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. The utility model provides a five holes area negative pressure syringe needle which characterized in that: contain five needles injection needle body (1), five needles injection needle body (1) are established five needles luer and are connect (2), connecting pipe (211) are established to flange (210) lower extreme of five needles luer and connect (2), flange (210) upper end is extension section (209), external screw thread (208) are established to the upper end of extension section (209), protruding step (207) are established to external screw thread (208) upper end, step two (204) are established to protruding step (207) upper end, establish connecting hole two (201) in connecting pipe (211) of five needles luer and connect (2), connecting hole two (201) feed liquor hole two (202) of intercommunication upper end, feed liquor hole two (202) and upper end main play liquid hole (203) intercommunication, go out liquid hole (203) and upwards run through the up end of step two (204), four crisscross runners (206) are established to step two (204) up end, play liquid hole (203) of upper end connection stock solution hole is in a plurality of criss-cross center that sets up, the tail ends of the four flow passages (206) are provided with counter bores (212);

the five-needle turntable is characterized in that a lengthened step (303) is arranged at the lower end of a turntable main body (301) of the five-needle turntable (3), a screw hole (302) is formed in the lengthened step (303), a counter bore III (304) is formed in the upper end of the screw hole (302), a plurality of buckles (305) are uniformly distributed on the upper edge of the inner portion of the counter bore III (304), and an oblique angle is formed at the inlet end of each buckle (305); a screw hole (302) of the five-needle rotary table (3) is in threaded connection with an external thread (208) of the five-needle luer connector (2), and the direction of a buckle (305) of the five-needle rotary table (3) is consistent with the direction of a flow channel (206) of the five-needle rotary table (3);

a square hole five (502) with a downward hole opening is formed in a needle seat main body (501) of the square five-needle seat (5), five conical columns five (503) are uniformly distributed on the upper end face of the needle seat main body (501), a needle fixing hole (504) is formed in each conical column five (503), the lower end of each needle fixing hole (504) is communicated with the corresponding square hole five (502), needle tubes (7) are all arranged in the needle fixing holes (504), five needle blocking pieces (4) are arranged in the corresponding square hole five (502), and the needle tubes (7) and the needle fixing holes (504) are glued and fixed by glue;

five crossed bosses four (401) in a shape like a Chinese character 'mi' are uniformly distributed on the upper end surface of the square five-needle baffle plate (4), a through hole four (402) is formed in the boss four (401), and the through hole four (402) is communicated with four crossed runners four (403) in the shape like the Chinese character 'mi' and concave on the lower end surface of the five-needle baffle plate (4);

the five-needle blocking piece (4) is arranged in a square hole five (502) of the five-needle base (5), the end face of a boss four (401) is attached to the bottom of the square hole five (502), and the periphery of the five-needle blocking piece (4) is glued and fixed with the inner wall of the square hole five (502) by glue;

the end face of a boss step (207) of a five-needle luer connector (2) in threaded connection with a five-needle turntable (3) is attached to one end face of a five-needle baffle plate (4), a flow channel four (403) of the five-needle baffle plate (4) is in butt joint with an opening of a flow channel (206) of the end face of the boss step (207) to form a closed space, a main liquid outlet hole (203) is communicated with a through hole four (402) in the middle of the five-needle baffle plate (4), and the periphery of the boss step (207) of the luer connector (2) is fixed with the inner wall of a square hole five (502) through glue;

after the five-needle seat (5), the five-needle baffle plate (4), the needle tube (7) and the five-needle luer connector (2) are installed, glue is adhered and fixed to form a non-detachable integral assembly, a connecting hole II (201), a liquid inlet hole II (202), a liquid outlet hole (203) and a flow channel (206) which are communicated with a flow channel IV (403) and a through hole IV (402) of the five-needle baffle plate (4) are communicated in the five-needle luer connector (2), the through hole IV (402) is communicated with the needle tube (7) which is fixed in a needle fixing hole (504) of the five-needle seat (5), and liquid in the injector flows into a closed space formed by butting the flow channel IV (403) and the flow channel (206) from the liquid inlet hole II (202) and then enters a needle hole of the needle tube (7) from;

the lower end of a main body (603) of the five-needle shell (6) is provided with a step (602), the outer circumference of the step (602) is provided with a flange type connecting step (605), the inner end face of the connecting step (605) is a right angle, the outer end face of the connecting step (605) is provided with a bevel connection six (606), the upper end of the main body (603) is provided with a square bin (610), five conical columns six (609) extending upwards are uniformly distributed in the square bin (610), a negative pressure bin (607) is formed between the conical columns six (609) and the four walls of the square bin (610), the outer wall of the square bin (610) is provided with a negative pressure pipe (601) extending outwards, a negative pressure hole (6011) in the negative pressure pipe (601) is communicated with the negative pressure bin (607) in the square bin (610), a needle outlet hole (608) is formed in the conical columns six (609), and the bottom of the needle outlet hole (608) is communicated with the square hole six (604;

the five-needle seat (5) with the needle tube (7), the five-needle blocking piece (4) and the convex step (207) of the five-needle luer connector (2) which are connected into a whole are partially and slidably arranged in a six-square-hole (604) of the five-needle shell (6) and can axially slide, a buckle (305) of the five-needle rotary table (3) elastically contracts inwards and moves axially to be buckled into a connecting step (605) of the five-needle shell (6) to recover, so that the five-needle rotary table (3) is connected with the five-needle shell (6) and axially limited, and the five-needle rotary table (3) can rotate around the step (602) of the five-needle shell (6);

when the five-needle turntable (3) rotates in a one-way mode, the five-needle luer connector (2) screwed with the five-needle turntable (3) moves forwards and axially, the five-needle luer connector (2) moving axially synchronously pushes the five-needle seat (5) with the needle tube (7) and the five-needle blocking piece (4) to move forwards axially, so that the needle tube (7) synchronously moves forwards in a needle outlet hole (608) in the conical column six (609) of the five-needle shell (6) until the needle point of the head of the needle tube (7) is exposed out of the outer end face of the conical column six (609) of the five-needle shell (6);

when the five-needle turntable (3) rotates reversely, the five-needle luer connector (2) screwed with the five-needle turntable (3) moves backwards and retracts axially, the five-needle luer connector (2) moving axially synchronously pulls the five-needle seat (5) with the needle tube (7) and the five-needle blocking piece (4) to move backwards and retract axially, so that the needle tube (7) moves backwards and retracts synchronously in a needle outlet hole (608) in the conical column six (609) of the five-needle shell (6) until the needle point of the head part of the needle tube (7) exposed out of the outer end surface of the conical column six (609) of the five-needle shell (6) moves backwards and retracts to the needle outlet hole (608) in the conical column six (609) of the five-needle shell (6);

the square hole eight (803) of blind hole are established in square protection chock plug (8), and step eight (801) are established to protection chock plug (8) upper end, step eight (801) lower extreme is established the appearance and is less than adapter sleeve (802) of step eight (801), and the lower extreme of adapter sleeve (802) is the import of square hole eight (803), and adapter sleeve (802) are bayonet negative pressure storehouse (607) of square storehouse (610) with five-needle housing (6) and are connected, and square hole eight (803) all seal including conical cylinder six (609).

2. The five-hole negative pressure injection needle of claim 1, wherein: the end surface of the conical column six (609) is flush with the end surface of the square bin (610).

3. The five-hole negative pressure injection needle of claim 1, wherein: the moving distance of the needle tube (7) is equal to the distance L from the upper end surface of the five-needle seat (5) to the bottom of the square hole six (604) of the five-needle shell (6).

4. The five-hole negative pressure injection needle of claim 1, wherein: the five-needle luer connector (2), the five-needle blocking piece (4), the five-needle shell (6) and the five-needle turntable (3) are made of PP.

5. The five-hole negative pressure injection needle of claim 1, wherein: the five-needle seat (5) is made of PC.

6. The five-hole negative pressure injection needle of claim 1, wherein: the pin outlet hole (608) is a taper hole, the taper of the conical column five (503) is the same as that of the pin outlet hole (608), and the size of the conical column five (503) is smaller than that of the pin outlet hole (608).

7. The five-hole negative pressure injection needle of claim 1, wherein: the length of the needle tube (7) extending out of the outer end face of the conical column six (609) of the five-needle shell (6) is not more than 4 mm.

8. The five-hole negative pressure injection needle of claim 1, wherein: the length of the needle tube (7) retracted into the outer end face of the conical column six (609) of the five-needle shell (6) is not less than 1 mm.

9. The five-hole negative pressure injection needle of claim 1, wherein: the thread pitches of the external thread (208) of the five-needle luer connector (2) and the screw hole (302) of the five-needle turntable (3) are both 1mm double-lead threads.

10. The five-hole negative pressure injection needle of claim 1, wherein: the negative pressure pipe (601) is a conical pipe with the inner end diameter larger than the outer end diameter.