CN206964851U - A kind of vacuum suction needleless injector - Google Patents
A kind of vacuum suction needleless injector Download PDFInfo
- Publication number
- CN206964851U CN206964851U CN201720114683.2U CN201720114683U CN206964851U CN 206964851 U CN206964851 U CN 206964851U CN 201720114683 U CN201720114683 U CN 201720114683U CN 206964851 U CN206964851 U CN 206964851U
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- Prior art keywords
- injection
- suction
- groove
- micropore
- needleless injector
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Abstract
Medical instruments field is the utility model is related to, is a kind of vacuum suction needleless injector specifically.In the prior art, used during injection has based on pin injection more, can cause pain and infection, and existing Needleless injection need to exert oneself to be pressed on skin, cause injection effect imprecise, unstable.Vacuum suction needleless injector provided by the utility model includes internal injection cylinder, the injection ram being arranged in injection cylinder with cavity, and injection ram is connected with piston rod；The end face of the dispensing end of the injection cylinder opens up fluted and injection micropore respectively, and the injection micropore is located at the outside of groove, and the injection micropore connects with the rodless cavity of injection cylinder；The groove offers the suction hole for aspirating groove inside air.Compared with prior art, the utility model has the advantages of injection effect is good, economizes on resources, be painless, avoiding infection.
Description
Technical field
Medical instruments field is the utility model is related to, is a kind of vacuum suction needleless injector specifically.
Background technology
In medical treatment, it usually needs human body is injected liquid into by a kind of medicine equipment of syringe, to reach diagnosis, control
Treat, prophylactic purpose.Existing hypodermic injection technology mostly with have pin inject based on, infection risk be present, patient has pain
Pain, many people fear pin, and syringe needle is disposable, serious waste of resources.Meanwhile also have needleless injector, needleless injector
Appearance is the once epoch-making revolution of medical instruments field.At present, the needleless injector of in the market by pressure by decoction disperse
In subcutaneous, it is necessary to syringe firmly be pressed into skin, the dynamics inconvenience of pressing controls, and causes injection effect imprecise, unstable.
A kind of vacuum suction needleless injector is now needed to solve the above problems.
Utility model content
The purpose of this utility model is to design a kind of vacuum suction needleless injector, has that injection effect is good, saves
Resource, painless, the advantages of avoiding infection.
The utility model is achieved through the following technical solutions：A kind of vacuum suction needleless injector, including it is internal with sky
The injection cylinder of chamber, the injection ram being arranged in cavity, injection ram are connected with piston rod；The end of the dispensing end of the injection cylinder
Face opens up fluted and injection micropore respectively, and the injection micropore is located at the outside of groove, the injection micropore and injection cylinder
Rodless cavity connects；The groove offers the suction hole for aspirating groove inside air.By the dispensing end and skin of injection cylinder
When skin is bonded, the space surrounded between the groove and skin forms a vacuum suction chamber, by suction hole by the inside of groove
Air be drawn into the external world, make to produce negative pressure in groove, skin and hypodermis be adsorbed in groove and form skin mound, meanwhile,
Skin mound is brought into close contact with groove to be fixed so that skin fixation, is not moved, injection effect is stable, definite；Injection cylinder
Rodless cavity is used to store decoction to be injected, and decoction can be pressed under the promotion of injection ram in injection micropore, and then by
Pressure injection is to subcutaneous, so as to which decoction disperse is in hypodermis, reaches the effect for the treatment of.Decoction is realized using the principle of vacuum suction
Injection, it is not necessary to firmly press syringe to skin, definite effect, stably, injection effect is good.
Further is preferably to realize the utility model, as a kind of scheme, especially using following setting structures：Also wrap
Include suction tube, the side wall of one end connection dispensing end of the suction tube, the suction hole and the hole link in suction tube.Attract
The free end of pipe is used to be connected with attractor, for producing suction effect to the air on the inside of groove, and then produces groove
Negative pressure.The aperture of the suction tube is equal with the internal diameter of suction hole.
Further is preferably to realize the utility model, alternatively, especially using following setting structures：Also
Including the suction tube being arranged in cavity, axis of the suction tube along injection cylinder sets and is connected with the dispensing end, and institute
State suction hole and the hole link in suction tube；The through hole being adapted to suction tube is offered on the injection ram and piston rod,
The injection ram and piston rod are sheathed on suction tube.The free end of the suction tube is located at outside injection cylinder, and suction tube from
It is used to be connected with attractor by end, and then the effect of suction is produced to the air on the inside of groove, groove is produced negative pressure.It is described
The aperture of suction tube is equal with the internal diameter of suction hole, and injection ram can back and forth be transported with piston rod along the axis direction of suction tube
It is dynamic.
Further is preferably to realize the utility model, especially using following setting structures：Set on the injection ram
It is equipped with the sealing ring being adapted to suction tube.
Further is preferably to realize the utility model, especially using following setting structures：The outer wall of the injection cylinder
On be provided with chemical feed pipe, the chemical feed pipe connects with rodless cavity.Further, the free end of the chemical feed pipe is arranged with removable
The end cap unloaded；Decoction can be injected into the rodless cavity of injection cylinder by removing end cap, need button upper end cap to add after the completion of injection decoction
Pencil is sealed.
Further is preferably to realize the utility model, especially using following setting structures：It is described injection micropore by
The end of nearly dispensing end is bent to groove side.The design of bending causes injection micropore to point to the root on skin mound so that decoction
It can more be evenly distributed in subcutaneously, reach the uniform effect of diffusion, improve the injection effect of decoction.
Further is preferably to realize the utility model, especially using following setting structures：Set on the injection ram
It is equipped with the sealing ring being adapted to injection cylinder.
Further is preferably to realize the utility model, especially using following setting structures：It is described to inject the interior of micropore
Footpath is 100 μm.
Further is preferably to realize the utility model, especially using following setting structures：The groove is hemispherical
Groove.
Further is preferably to realize the utility model, especially using following setting structures：The number of the injection micropore
Measure as two, two injection micropores are symmetrical on the center line of groove.Two injection micropores uniformly, symmetrically divide
Cloth, it is possible to increase the uniformity of decoction injection, improve the effect of decoction injection.
Further is preferably to realize the utility model, especially using following setting structures：The injection cylinder is integrated
Shaping is fabricated.
Further is preferably to realize the utility model, especially using following settings：The injection cylinder is glass or doctor
It is fabricated with stainless steel.
The utility model has advantages below and beneficial effect：
(1) in the utility model, groove is connected by suction hole with suction tube, and suction tube is connected to recessed with attractor
Air in groove produces swabbing action, groove is produced negative pressure, and sucking action is produced hence for the skin of injection cylinder contact,
Skin and then enter skin mound is formed in groove；Skin and hypodermis are adsorbed in by vacuum suction by the principle of vacuum suction
Intracavitary forms skin mound, skin fixation, does not move, and Pi Qiu roots are bonded with injection micropore, are pushed and produced by injection ram
Pressure, by the decoction in injection cylinder through injecting micropore injection and disperse in hypodermis, reaching hypodermic effect, it is not required to
Will be exerted oneself pressing syringe on skin so that injection effect is definite, stably, while painless when injecting, and avoids patient's
Probably pin mood, avoid infecting；
(2) in the utility model, injection micropore is being bent close to the end of dispensing end to groove side, the design of bending
So that injection micropore points to the root on skin mound so that decoction can be more evenly distributed in subcutaneously, reach the uniform effect of diffusion
Fruit, improve the injection effect of decoction；
(3) in the utility model, this kind of syringe is needleless injector, can reuse, avoid waste of resource, avoid
The risk of infection.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural profile illustration of vacuum suction needleless injector described in embodiment 2 (through injecting micropore)；
Fig. 2 is a kind of structural profile illustration of vacuum suction needleless injector described in embodiment 1 (through injecting micropore)；
Fig. 3 is a kind of structural profile illustration of vacuum suction needleless injector described in embodiment 1 (through suction hole)；
Fig. 4 is the diagrammatic cross-section of injection ram and piston rod in embodiment 2；
Fig. 5 is a kind of use schematic diagram of vacuum suction needleless injector described in embodiment 1.
In figure mark for：
1- injection cylinders；2- injection rams；3- piston cylinders；4- grooves；5- suction holes；6- injects micropore；7- suction tubes；8- adds
Pencil.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer
Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Resulting all other embodiment is put, belongs to the scope that the utility model is protected.
Embodiment 1：
A kind of vacuum suction needleless injector, there is the advantages of injection effect is good, economizes on resources, be painless, avoiding infection, such as
Shown in Fig. 2, Fig. 3, Fig. 5, following structures are specifically arranged to：Including an injection cylinder 1 placed vertically, the inside of the injection cylinder 1 has
There is cavity, the bottom of the injection cylinder 1 is dispensing end；An injection ram 2, the top surface middle part of injection ram 2 are provided with the cavity
A piston rod 3 is connected with, piston rod 3 upwardly extends, and the top of piston rod 3 is located at outside the injection cylinder 1, the top of injection ram 2
Cavity more than face is rod chamber, and the cavity of the below ground of injection ram 2 is rodless cavity；The end face of the dispensing end of injection cylinder 1
Hemispheric groove 4 and injection micropore 6 are offered respectively, and injection micropore 6 is located at the outside of groove 4, injects micropore 6 and injection cylinder
1 rodless cavity connection；The suction hole 5 for aspirating the inside air of groove 4 is offered on groove 4.In the dispensing end of injection cylinder 1
Side wall on be fixedly connected with a suction tube 7, suction hole 5 is connected by the inside of injection cylinder 1 with suction tube 7.Suction tube 7 from
It is used to be connected with attractor by end, wherein, the aperture of suction tube 7 is equal with the internal diameter of suction hole 5.It is solid on the outer wall of injection cylinder 1
Surely a chemical feed pipe 8 is connected with, the chemical feed pipe 8 is connected by the through hole opened up on injection cylinder 1 with rodless cavity.Wherein, in chemical feed pipe 8
Free end on be arranged with dismountable end cap；Decoction can be injected into the rodless cavity of injection cylinder 1 by removing end cap, inject decoction
After the completion of need detain upper end cap chemical feed pipe 8 is sealed.
Preferably, in order that decoction can be injected directly into the root on skin mound, the effect of injection is improved, injection micropore 6 exists
Bent close to the end of dispensing end to groove side.The design of the bending enables injection micropore 6 to be pointing directly at skin mound
Root so that decoction can be more evenly distributed in subcutaneously, reach the uniform effect of diffusion, improve the injection effect of decoction.
Preferably, in order to ensure that the decoction in injection cylinder 1 is not revealed, and also for the medicine ensured in injection cylinder 1
Liquid is not contaminated, and the sealing ring being adapted to injection cylinder 1 is provided with injection ram 2.
It is micro- with enough injection pressure and mobility, injection when preferably, in order to make decoction by injecting micropore 6
The internal diameter in hole 6 is 100 μm.
Preferably, in order to improve the effect of liquid medicine injection, particularly, the quantity of injection micropore 6 is two, and two injections are micro-
Hole 6 is symmetrical on the center line of groove 4.Two injection micropores 6 are uniform, symmetrical, it is possible to increase decoction injects
Uniformity, improve decoction injection effect.
Wherein, the material of injection cylinder 1 is glass or medical stainless steel, and the injection cylinder 1, suction tube 7 and chemical feed pipe 8 are to pass through
It is integrally formed the integral structure being fabricated.
Wherein, suction hole 5 and injection micropore 6 between independently of each other, do not connect mutually.
In use, take away end cap, the decoction of outside is connected with chemical feed pipe 8, passed through decoction with the piston rod 3 that carries is closed
Chemical feed pipe 8 is injected into the rod chamber of injection cylinder 1, afterwards band upper end cap；By the dispensing end of injection cylinder 1 and the skin contact of patient
Fitting, suction tube 7 and attractor or syringe etc. are attached, open attractor or lifting syringe, the air quilt on the inside of groove 4
Suction hole 5 is drawn into, and then is entered by suction tube 7 in syringe or at attractor, makes to produce negative pressure, atmospheric pressure at groove 4
The skin mound matched with groove 4 will be formed in skin press-in groove 4；Piston rod 3 is pushed afterwards, so as to drive injection ram 2 by medicine
Hydraulic pressure enters to inject in micropore 6, and then the root on skin mound is injected into by injecting micropore 6；After the completion of injection, suction tube 7 is pulled out
With the connection of syringe or attractor, injection cylinder 1 is taken away from skin.
Embodiment 2：
The present embodiment is further optimized on the basis of above-described embodiment, and further is preferably to realize that this practicality is new
Type, as Figure 1 and Figure 4, especially using following setting structures：Including an injection cylinder 1 placed vertically, the inside of the injection cylinder 1
With cavity, the bottom of the injection cylinder 1 is dispensing end；An injection ram 2 is provided with the cavity, in the top surface of injection ram 2
Portion is connected with a piston rod 3, and piston rod 3 upwardly extends, and the top of piston rod 3 is located at outside the injection cylinder 1, injection ram 2
Cavity more than top surface is rod chamber, and the cavity of the below ground of injection ram 2 is rodless cavity；The end of the dispensing end of injection cylinder 1
Face offers hemispheric groove 4 and injection micropore 6 respectively, and injection micropore 6 is located at the outside of groove 4, injection micropore 6 and injection
The rodless cavity connection of cylinder 1；The suction hole 5 for aspirating the inside air of groove 4 is offered on groove 4.
A suction tube 7 is provided with the rod chamber of injection cylinder 1, the axis of suction tube 7 overlaps simultaneously with the axis of injection cylinder 1
It is that dispensing end is connected with the bottom end face of rodless cavity, suction hole 5 connects with suction tube 7；Opened up on injection ram 2 and piston rod 3
There is the through hole being adapted to suction tube 7, injection ram 2 and the whole slide of piston rod 3 are sheathed on suction tube 7.The freedom of suction tube 7
End is outside injection cylinder 1, and the free end of suction tube 7 is used to be connected with attractor, and then the air generation to the inner side of groove 4 is taken out
The effect of suction, make to produce negative pressure at groove 4 to attract skin to form skin mound.
Wherein, the aperture of suction tube 7 is equal with the internal diameter of suction hole 5, and injection ram 2 can be along suction tube 7 with piston rod 3
Axis direction move back and forth.
Preferably, in order to ensure that the decoction in injection cylinder 1 is not revealed, and also for the medicine ensured in injection cylinder 1
Liquid is not contaminated, and the sealing ring being adapted to suction tube 7 is provided with injection ram 2.
A chemical feed pipe 8 is fixedly connected with the outer wall of injection cylinder 1, the chemical feed pipe 8 by the through hole that is opened up on injection cylinder 1 with
Rodless cavity connects.Wherein, dismountable end cap is arranged with the free end of chemical feed pipe 8；Removing end cap can be to injection cylinder 1
Decoction is injected in rodless cavity, needs button upper end cap to be sealed chemical feed pipe 8 after the completion of injection decoction.
Preferably, in order that decoction can be injected directly into the root on skin mound, the effect of injection is improved, injection micropore 6 exists
Bent close to the end of dispensing end to groove side.The design of the bending enables injection micropore 6 to be pointing directly at skin mound
Root so that decoction can be more evenly distributed in subcutaneously, reach the uniform effect of diffusion, improve the injection effect of decoction.
Preferably, in order to ensure that the decoction in injection cylinder 1 is not revealed, and also for the medicine ensured in injection cylinder 1
Liquid is not contaminated, and the sealing ring being adapted to injection cylinder 1 is provided with injection ram 2.
It is micro- with enough injection pressure and mobility, injection when preferably, in order to make decoction by injecting micropore 6
The internal diameter in hole 6 is 100 μm.
Preferably, in order to improve the effect of liquid medicine injection, particularly, the quantity of injection micropore 6 is two, and two injections are micro-
Hole 6 is symmetrical on the center line of groove 4.Two injection micropores 6 are uniform, symmetrical, it is possible to increase decoction injects
Uniformity, improve decoction injection effect.
Wherein, the material of injection cylinder 1 is glass or medical stainless steel, and the injection cylinder 1, suction tube 7 and chemical feed pipe 8 are to pass through
It is integrally formed the integral structure being fabricated.
Wherein, suction hole 5 and injection micropore 6 between independently of each other, do not connect mutually.
In use, as shown in figure 5, take away end cap, the decoction of outside is connected with chemical feed pipe 8, with closing the piston rod 3 that carries
Decoction is injected into the rod chamber of injection cylinder 1 by chemical feed pipe 8, afterwards band upper end cap；By the dispensing end of injection cylinder 1 and patient
Skin contact fitting, suction tube 7 and attractor or syringe etc. are attached, attractor is opened or lifts syringe, in groove 4
The air of side is inhaled into suction hole 5, and then is entered by suction tube 7 in syringe or at attractor, makes to produce at groove 4 and bears
Skin is pressed into the skin mound for being formed in groove 4 and being matched with groove 4 by pressure, atmospheric pressure；Piston rod 3 is pushed afterwards, so as to drive injection
Decoction is pressed into injection micropore 6 by piston 2, and then the root on skin mound is injected into by injecting micropore 6；After the completion of injection, pull out
Fall the connection of suction tube 7 and syringe or attractor, injection cylinder 1 is taken away from skin.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (10)
- A kind of 1. vacuum suction needleless injector, it is characterised in that：Including the internal injection cylinder (1) with cavity, it is arranged on sky The injection ram (2) of intracavitary, injection ram (2) are connected with piston rod (3)；The end face difference of the dispensing end of the injection cylinder (1) Open up fluted (4) and injection micropore (6), the injection micropore (6) be located at the outside of groove (4), the injection micropore (6) and The rodless cavity connection of injection cylinder (1)；The groove (4) offers the suction hole (5) for aspirating groove (4) inside air.
- A kind of 2. vacuum suction needleless injector according to claim 1, it is characterised in that：Also include suction tube (7), institute State the side wall of one end connection dispensing end of suction tube (7), the suction hole (5) and the hole link in suction tube (7).
- A kind of 3. vacuum suction needleless injector according to claim 1, it is characterised in that：Also include being arranged in cavity Suction tube (7), axis of the suction tube (7) along injection cylinder (1) sets and is connected with the dispensing end, and the suction hole (5) with suction tube (7) in hole link；Offer on the injection ram (2) and piston rod (3) and be adapted to suction tube (7) Through hole, the injection ram (2) and piston rod (3) are sheathed on suction tube (7).
- A kind of 4. vacuum suction needleless injector according to claim 3, it is characterised in that：On the injection ram (2) It is provided with the sealing ring being adapted to suction tube (7).
- A kind of 5. vacuum suction needleless injector according to claim 1 or 2 or 3 or 4, it is characterised in that：The injection Chemical feed pipe (8) is provided with the outer wall of cylinder (1), the chemical feed pipe (8) connects with rodless cavity.
- A kind of 6. vacuum suction needleless injector according to claim 1, it is characterised in that：The injection micropore (6) exists Bent close to the end of dispensing end to groove side.
- A kind of 7. vacuum suction needleless injector according to claim 1, it is characterised in that：On the injection ram (2) It is provided with the sealing ring being adapted to injection cylinder (1).
- A kind of 8. vacuum suction needleless injector according to claim 1, it is characterised in that：The injection micropore (6) Internal diameter is 100 μm.
- A kind of 9. vacuum suction needleless injector according to claim 1, it is characterised in that：The groove (4) is hemisphere Connected in star.
- A kind of 10. vacuum suction needleless injector according to claim 9, it is characterised in that：The injection micropore (6) Quantity is two, and two injection micropores (6) are symmetrical on the center line of groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720114683.2U CN206964851U (en) | 2017-02-07 | 2017-02-07 | A kind of vacuum suction needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720114683.2U CN206964851U (en) | 2017-02-07 | 2017-02-07 | A kind of vacuum suction needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206964851U true CN206964851U (en) | 2018-02-06 |
Family
ID=61414776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720114683.2U Expired - Fee Related CN206964851U (en) | 2017-02-07 | 2017-02-07 | A kind of vacuum suction needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206964851U (en) |
-
2017
- 2017-02-07 CN CN201720114683.2U patent/CN206964851U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20190207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |