CN206995361U

CN206995361U - Syringe

Info

Publication number: CN206995361U
Application number: CN201720146681.1U
Authority: CN
Inventors: 卢永贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-20
Filing date: 2017-02-20
Publication date: 2018-02-13
Anticipated expiration: 2027-02-20

Abstract

The utility model provides a kind of syringe, including cylinder, piston rod and push structure, and at least two through holes for axially penetrating through cylinder are offered in cylinder；Piston rod is corresponding with the quantity of through hole, and one-to-one corresponding activity plugs in through-holes；Push structure promotes piston rod to do piston movement in corresponding through hole, and then the Starting reagents required for mixture finished product can be placed in different through holes, when needing mixture finished product, the piston rod in through hole need to only be promoted, Starting reagents can effectively be mixed in the outside of cylinder, so as to prepare to obtain mixture finished product, so that when the life-span starting point for the mixture finished product newly prepared is use, in addition the shelf life of Starting reagents is longer than the shelf life of mixture finished product, and then the material shelf life in syringe is caused to have significant raising, so as to reach Shelf-life limit and the effect of product turnaround time.

Description

Syringe

Technical field

Medical instruments field is the utility model is related to, more particularly to a kind of syringe for being applicable tooth whitening reagent.

Background technology

In daily life, people can run into many materials either contacted daily can be by tooth " dyeing " or reduction Food, tobacco product and liquid of the consumption of its " whiteness ", especially people etc. are all easily intended to make dental stain.Conventional brush Tooth and friction toothwash can remove the pigment of dental surface, but single limited by the whitening effect of rubbing agent, and mechanical toothwash It is not easily controlled, frequently can lead to the excessive wear of dental surface and hurt the health of tooth.Therefore, the product of tooth-whitening Arise at the historic moment, nowadays the product of tooth-whitening and material be mainly be configured to liquid, solution, cream or gel contain peroxidating The reagent of thing.

At present, these reagents for being used for tooth whitening bleaching need that whitening composition and catalyst component first are carried out into corresponding proportion Mixing, then again by mixed finished product by syringe be applied on tooth with to tooth carry out whitening, due to existing Syringe use for monotubular structure, and the mixture products storage time of these tooth whitening reagents is short, causes and is noting Its whitening effect can be lost in emitter after long-time storage, and then leverages the turnaround time of product, therefore, how to be improved The shelf life for the tooth whitening reagent being stored in syringe, become now such as with Shelf-life limit and product turnaround time Modern urgent problem to be solved.

Utility model content

Therefore, the technical problems to be solved in the utility model is to overcome the tooth whitening reagent finished product of prior art noting The short technological deficiency of shelf life in emitter, so as to provide a kind of syringe for extending the tooth whitening reagent storage life-span.

To achieve these goals, the utility model provides a kind of syringe, including cylinder, piston rod and push structure, At least two through holes for axially penetrating through cylinder are offered in cylinder；Piston rod is corresponding with the quantity of through hole, and one-to-one corresponding activity Plug in through-holes；Push structure promotes piston rod to do piston movement in corresponding through hole.

Preferably, the rear end of cylinder offers a host cavity axially inwards, the bottom wall of host cavity, which axially offers, to be run through The through hole of cylinder；Push structure includes fixed seat and screw rod, and fixed seat is movably arranged in the host cavity of cylinder, and fixed seat It is restricted with the relative rotation of cylinder in the circumferential, the screwed hole being adapted with screw rod is provided with fixed seat, screw rod plugs In screwed hole, piston rod is fixedly mounted in fixed seat.

Preferably, host cavity and fixed seat are respectively ellipse.

Preferably, push structure also includes knob, knob is arranged on the rear end of cylinder, and the rear end of screw rod is fixedly mounted on On knob.

Preferably, offer profiled holes in the middle part of knob, the afterbody of screw rod is in special-shaped column corresponding to profiled holes, screw rod Afterbody be plugged in profiled holes.

Preferably, syringe also includes bonnet, bonnet is arranged on the rear end of cylinder and seals host cavity, after cover and open up There is a jack for running through bonnet, screw rod activity is plugged in jack.

Preferably, the rear end radial projection of screw rod is more than jack formed with a limiting section, the maximum gauge of limiting section, limit Position portion is arranged on jack outside the side of inner barrel.

Preferably, the maximum gauge of limiting section is more than the screwed hole on the external diameter and fixed seat of screw flight part External diameter.

Preferably, the front end convex of cylinder is provided with an installation portion, corresponding and through hole is provided with least two on installation portion Individual perforate, perforate corresponds with through hole to be connected；Syringe also includes a hollow syringe needle, and syringe needle is removably set in On installation portion, the cavity of syringe needle is connected with each perforate.

Preferably, syringe also includes protecgulum, protecgulum is removably covered in the front end of cylinder.

Instrument used for injection provided by the utility model has the following advantages：

1. syringe provided by the utility model, the logical of cylinder is axially penetrated through by offering at least two in cylinder Hole, and set one-to-one corresponding activity to plug piston rod corresponding with the quantity of through hole in through-holes, and push structure promotes Piston rod does piston movement in corresponding through hole, and then the original required for mixture finished product can be placed in different through holes Beginning reagent, when needing mixture finished product, it need to only promote the piston rod in through hole, you can Starting reagents are entered in the outside of cylinder The effective mixing of row, so as to prepare to obtain mixture finished product so that the life-span starting point for the mixture finished product newly prepared is to use it When, the shelf life of Starting reagents is longer than the shelf life of mixture finished product in addition, and then causes the material storage in syringe There is significant raising in life-span, so as to reach Shelf-life limit and the effect of product turnaround time.

2. syringe provided by the utility model, by offering a host cavity axially inwards in the rear end of cylinder, promote The fixed seat of structure is movably arranged in the host cavity of cylinder, and the screwed hole being adapted with screw rod, screw rod are provided with fixed seat It is plugged in screwed hole, when rotary screw, because relative rotation of the fixed seat with cylinder in the circumferential is restricted, and then makes Fixed seat can be by the engagement between screw thread and along the axial movement of cylinder；Meanwhile and due to the bottom of host cavity Wall axially offers the through hole through cylinder, and piston rod is fixedly mounted in fixed seat, and then works as axle of the fixed seat along cylinder To it is mobile when, fixed seat promotes axial movement of the piston rod along through hole, and then squeezing to the reagent in syringe through hole Go out or suck effect；In addition, because relative rotation of the fixed seat with cylinder in the circumferential is restricted, and then avoid When syringe is not used, fixed seat or screw rod make the situation generation that reagent is extruded due to extruding.

3. syringe provided by the utility model, by the way that host cavity and fixed seat are separately designed as ellipse, Jin Erda The purpose that fixed seat is restricted with the relative rotation of cylinder is in the circumferential arrived.

4. syringe provided by the utility model, because push structure also includes knob, knob is arranged on the rear end of cylinder, The rear end of screw rod is fixedly mounted on knob, and then when needing rotary screw, turn knob can drive screw rod to rotate, using connecing Contacting surface accumulates bigger knob, facilitates the rotation to screw rod.

5. syringe provided by the utility model, by offering profiled holes in the middle part of knob, the afterbody of screw rod is corresponding It is in special-shaped column in profiled holes, the afterbody of screw rod is plugged in profiled holes, and then causes screw rod and knob in the circumferential relative Position is fixed, that is, has reached turn knob to drive the purpose that screw rod rotates.

6. syringe provided by the utility model, because syringe also includes bonnet, bonnet is arranged on the rear end of cylinder simultaneously Seal host cavity, after cover offer one run through bonnet jack, screw rod activity is plugged in jack, and then is not influenceing screw rod On the basis of operation, by bonnet sealed cylinder rear end with prevent extraneous other materials from cylinder back-end enter inner barrel and shadow Agent effective is rung, has reached the purpose of medical aseptic.

7. syringe provided by the utility model, by screw rod rear end radial projection formed with a limiting section, it is spacing The maximum gauge in portion is more than jack, and limiting section is arranged on jack outside the side of inner barrel, and then the limit for passing through limiting section Position effect so that screw rod will not drop out of cylinder, ensure that the stability that fixed seat moves in cylinder.

8. syringe provided by the utility model, by being provided with an installation portion in the front end convex of cylinder, on installation portion Corresponding that through hole is provided with least two perforates, perforate corresponds with through hole to be connected, and then make it that the reagent in cylinder can With external by perforate extruded tube；Simultaneously as syringe also includes a hollow syringe needle, syringe needle is removably set in peace In dress portion, the cavity of syringe needle is connected with each perforate, and then the reagent for causing extruded tube external is mixed in needle wall, Mixture finished product is obtained with configuration, obtained mixture finished product is finally extruded by syringe needle to be applied on tooth.

9. syringe provided by the utility model, because syringe also includes protecgulum, protecgulum is removably covered in cylinder The front end of body, and then when syringe does not operate, syringe needle can be pulled down, change protecgulum so that while syringe is easy to carry about with one Also effect attractive in appearance has been reached.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme of the utility model embodiment, below according to of the present utility model Specific embodiment and with reference to accompanying drawing, is described in further detail to utility model.

Fig. 1 is a kind of stereogram of embodiment of the utility model syringe；

Fig. 2 is the explosive view of syringe shown in Fig. 1；

Fig. 3 is the upward view of the cylinder of syringe shown in Fig. 1；

Fig. 4 is the longitudinal section of the cylinder of syringe shown in Fig. 1；

Fig. 5 is that the piston rod of syringe shown in Fig. 1 is in the longitudinal section of original position；

Longitudinal section when Fig. 6 is the piston rod compression work of syringe shown in Fig. 1；

Fig. 7 is that syringe shown in Fig. 1 removes the stereogram that syringe needle covers protecgulum；

Fig. 8 is that the piston rod of syringe shown in Fig. 7 is in the longitudinal section of original position.

Each description of reference numerals is as follows in figure.

1- cylinders；11- through holes；12- host cavities；13- installation portions；131- perforates；

2- piston rods；3- push structures；31- fixed seats；311- screwed holes；

32- screw rods；321- limiting sections；33- knobs；331- profiled holes；4- bonnets；

5- syringe needles；6- protecgulums.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation, the orientation of the instruction such as term "front", "rear", " interior ", " outer " in description of the present utility model Or position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplification is retouched State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation, Therefore it is not intended that to limitation of the present utility model.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected " should be interpreted broadly, for example, it may be fixedly mounted or detachably install, or integrally formed peace Dress；Can be joined directly together, can also be indirectly connected by intermediary, or both between connection.For the general of this area For logical technical staff, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.

In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other Conflict can is not formed to be combined with each other.

Embodiment 1

A kind of embodiment of syringe as shown in Figure 1 to Figure 3, including cylinder 1, piston rod 2 and push structure 3, at least two through holes 11 for axially penetrating through cylinder 1 are offered in cylinder 1；Piston rod 2 is corresponding with the quantity of through hole 11, and one by one Corresponding activity is plugged in through hole 11；Push structure 3 promotes piston rod 2 to do piston movement in corresponding through hole 11.

Said syringe, by offering at least two through holes 11 for axially penetrating through cylinder 1 in cylinder 1, and set One-to-one corresponding activity is plugged in through hole 11 piston rod 2 corresponding with the quantity of through hole 11, and push structure 3 promotes piston rod 2 do piston movement in corresponding through hole 11, and then the original required for mixture finished product can be placed in different through holes 11 Beginning reagent, when needing mixture finished product, it need to only promote the piston rod 2 in through hole 11, you can in the outside of cylinder 1 to original examination Agent is effectively mixed, so as to prepare to obtain mixture finished product so that the life-span starting point for the mixture finished product newly prepared is to make When, the shelf life of Starting reagents is longer than the shelf life of mixture finished product in addition, and then causes the material in syringe Shelf life has significant raising, so as to reach Shelf-life limit and the effect of product turnaround time.

Specifically, as shown in Figures 2 to 4, the rear end of cylinder 1 offers a host cavity 12 axially inwards, host cavity 12 Bottom wall axially offers two through holes 11 through cylinder 1；As shown in Figure 2 and Figure 5, push structure 3 includes fixed seat 31 and spiral shell Bar 32, fixed seat 31 are movably arranged in the host cavity 12 of cylinder 1, and fixed seat 31 and cylinder 1 in the circumferential relative turn It is dynamic to be restricted, the screwed hole 311 being adapted with screw rod 32 is provided with fixed seat 31, screw rod 32 is plugged in screwed hole 311, Piston rod 2 is fixedly mounted in fixed seat 31.As shown in fig. 6, when rotary screw 32, due to fixed seat 31 with cylinder 1 in week Upward relative rotation is restricted, and then allows fixed seat 31 by the engagement between screw thread and along cylinder 1 Axial movement；When axial movement of the fixed seat 31 along cylinder 1, fixed seat 31 promotes axial direction of the piston rod 2 along through hole 11 It is mobile, and then to the extrusion or suction effect of the reagent in syringe through hole 11；In addition, due to fixed seat 31 It is restricted, and then avoids when syringe is not used, fixed seat 31 or screw rod with the relative rotation of cylinder 1 in the circumferential 32 situations for being extruded reagent due to extruding are occurred.

It should be noted that in the present embodiment using a screw rod 32 simultaneously control multiple piston rods 2 by the way of, except this Outside, can also by the way of the corresponding single screw rod 32 of single piston rod 2 controls, certainly can also using other modes come Piston rod 2 is promoted to move, for example each piston rod 2 protrudes out cylinder 1 respectively, only needs directly to squeeze piston rod 2 during operation Pressure or pull；Or by piston rod 2 be fixed to same fixed plate on, fixed plate is directly or indirectly applied thrust or The mode of person's pulling force, it can reach while extrude the effect of reagent in each through hole 11.

As optional embodiment, host cavity 12 and fixed seat 31 are respectively ellipse, and then fixed seat 31 The purpose being restricted with the relative rotation of cylinder 1 in the circumferential.

Meanwhile as depicted in figs. 1 and 2, also include knob 33 in order to facilitate the rotation to screw rod 32, push structure 3, revolve Button 33 is arranged on the rear end of cylinder 1, and the rear end of screw rod 32 is fixedly mounted on knob 33, and then using the bigger rotation of contact area For button 33, it is necessary to during rotary screw 32, turn knob 33 can drive screw rod 32 to rotate.

As optional embodiment, the middle part of knob 33 offers profiled holes 331, and the afterbody of screw rod 32 corresponds to abnormal shape Hole 331 is in special-shaped column, and the afterbody of screw rod 32 is plugged in profiled holes 331, and then causes screw rod 32 with knob 33 in the circumferential Relative position fix, that is, reached turn knob 33 with drive screw rod 32 rotate purpose, in the present embodiment, profiled holes 331 be regular hexagon, and it be positive six prismsby that the afterbody of screw rod 32, which corresponds to, and certain profiled holes 331 are also thought for other shapes, Be so that screw rod 32 can not rotate against between knob 33 can, it is for example oval, it is star-like etc..No longer add herein To repeat.

In order to ensure that reagent mixing is to obtain the purpose of mixture finished product in syringe injection and through hole 11, such as Fig. 2, figure Shown in 5 and Fig. 6, the front end convex of cylinder 1 is provided with an installation portion 13, and corresponding and through hole 11 is provided with least two on installation portion 13 Individual perforate 131, perforate 131 corresponds with through hole 11 to be connected；Syringe also includes a hollow syringe needle 5, and syringe needle 5 is removable It is set in unloading on installation portion 13, the cavity of syringe needle 5 is connected with each perforate 131.And then make it that the reagent in cylinder 1 can be with Extruded by perforate 131 outside cylinder 1；The reagent extruded simultaneously outside cylinder 1 is mixed inside syringe needle 5, is mixed with configuration Compound finished product, obtained mixture finished product are finally extruded by syringe needle 5 to be applied on tooth.

Because syringe is applied to medical equipment, there is higher requirement to its levels of sterility in the process used, therefore, Syringe also includes protecgulum 6 and bonnet 4, as shown in Figure 7 and Figure 8.Wherein, protecgulum 6 is removably covered in the front end of cylinder 1, Bonnet 4 is arranged on the rear end of cylinder 1 and seals host cavity 12, and a jack (not shown) for running through bonnet 4 is offered on bonnet 4, The activity of screw rod 32 is plugged in jack.And then when syringe does not operate, syringe needle 5 can be pulled down, change protecgulum 6, enclose cylinder The front port of body 1 so that syringe is easy to carry about with one and has also reached effect attractive in appearance；Meanwhile do not influenceing the operation of screw rod 32 On the basis of, by the rear end of 4 sealed cylinder of bonnet 1 to prevent extraneous other materials from entering the inside of cylinder 1 from the rear end of cylinder 1 to influence Agent effective, the purpose of medical aseptic is reached

As optional embodiment, shown in such as Fig. 2, Fig. 5, Fig. 6 and with Fig. 8, the rear end radial projection of screw rod 32 is formed There is a limiting section 321, the maximum gauge of limiting section 321 is more than jack, and limiting section 321 is arranged on jack inside cylinder 1 Outside side；And the maximum gauge of limiting section 321 is more than the screw thread on the external diameter and fixed seat 31 of the threaded portion of screw rod 32 The external diameter in hole 311, and then pass through the position-limiting action of limiting section 321 so that screw rod 32 will not drop out of cylinder 1, ensure that solid The stability that reservation 31 is moved in cylinder 1.

Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or Among changing still in the protection domain of the invention.

Claims

A kind of 1. syringe, it is characterised in that including：

Cylinder (1), at least two through holes (11) for axially penetrating through the cylinder (1) are offered in the cylinder (1)；

Piston rod (2), it is corresponding with the quantity of the through hole (11), and one-to-one corresponding activity is plugged in the through hole (11)；

Push structure (3), the piston rod (2) is promoted to do piston movement in the corresponding through hole (11).
2. syringe according to claim 1, it is characterised in that the rear end of the cylinder (1) offers one axially inwards Host cavity (12), the bottom wall of the host cavity (12) axially offer the through hole (11) through the cylinder (1)；It is described to push away Structure (3) is sent to include fixed seat (31) and screw rod (32), the fixed seat (31) is movably arranged on the host cavity of the cylinder (1) (12) in, and relative rotation of the fixed seat (31) with the cylinder (1) in the circumferential is restricted, the fixed seat (31) screwed hole (311) being adapted with the screw rod (32) is provided with, the screw rod (32) is plugged in the screwed hole (311) in, the piston rod (2) is fixedly mounted in the fixed seat (31).
3. syringe according to claim 2, it is characterised in that the host cavity (12) and the fixed seat (31) are respectively For ellipse.
4. syringe according to claim 2, it is characterised in that the push structure (3) also includes knob (33), described Knob (33) is arranged on the rear end of the cylinder (1), and the rear end of the screw rod (32) is fixedly mounted on the knob (33).
5. syringe according to claim 4, it is characterised in that offer profiled holes in the middle part of the knob (33) (331), the afterbody of the screw rod (32) is in special-shaped column corresponding to the profiled holes (331), and the afterbody of the screw rod (32) is inserted It is located in the profiled holes (331).
6. according to the syringe any one of claim 2-5, it is characterised in that the syringe also includes bonnet (4), The bonnet (4) is arranged on the rear end of the cylinder (1) and seals the host cavity (12), and one is offered on the bonnet (4) Jack through the bonnet (4), screw rod (32) activity are plugged in the jack.
7. syringe according to claim 6, it is characterised in that the rear end radial projection of the screw rod (32) is formed with one Limiting section (321), the maximum gauge of the limiting section (321) are more than the jack, and the limiting section (321) is arranged on described insert Hole is outside the internal side of the cylinder (1).
8. syringe according to claim 7, it is characterised in that the maximum gauge of the limiting section (321) is more than described The external diameter of the screwed hole (311) on the external diameter and the fixed seat (31) of the threaded portion of screw rod (32).
9. according to the syringe any one of claim 1-5, it is characterised in that the front end convex of the cylinder (1) It is corresponding on the installation portion (13) that the through hole (11) is provided with least two perforates (131), institute provided with an installation portion (13) State perforate (131) and corresponded with the through hole (11) and is connected；The syringe also includes a hollow syringe needle (5), institute State syringe needle (5) to be removably set on the installation portion (13), the cavity of the syringe needle (5) and each perforate (131) It is connected.
10. according to the syringe any one of claim 1-5, it is characterised in that the syringe also includes protecgulum (6), the protecgulum (6) is removably covered in the front end of the cylinder (1).