CN213374437U - Fixed-dose needleless injector - Google Patents
Fixed-dose needleless injector Download PDFInfo
- Publication number
- CN213374437U CN213374437U CN202021645951.1U CN202021645951U CN213374437U CN 213374437 U CN213374437 U CN 213374437U CN 202021645951 U CN202021645951 U CN 202021645951U CN 213374437 U CN213374437 U CN 213374437U
- Authority
- CN
- China
- Prior art keywords
- liquid medicine
- medicine bottle
- shell
- barrel
- sleeved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 239000003814 drug Substances 0.000 claims abstract description 70
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000011002 quantification Methods 0.000 abstract 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a fixed-dose needleless injector, which comprises a shell, wherein an injection tube is sleeved in the shell and is in sliding connection with the shell, a second snap ring is sleeved outside the injection tube and is fixedly connected with the injection tube, a screw cap is sleeved outside the second snap ring and is rotatably connected with the second snap ring, the screw cap is sleeved outside the shell and is in threaded connection with the shell, one side of the shell is fixedly connected with a first barrel body, the first barrel body is communicated with an inner cavity of the shell, a liquid medicine bottle is sleeved in the first barrel body, the liquid medicine bottle is in threaded connection with the first barrel body, the utility model forces liquid medicine to enter the injection tube through the extrusion of a soft rubber tube, and the dose of the liquid medicine existing in the injection tube can be known by comparing the scale existing in the liquid medicine bottle with the scale existing in the liquid medicine bottle, thereby realizing the quantification of the liquid medicine, avoiding the excessive injection of the liquid medicine for the patient and avoiding the waste of the liquid medicine.
Description
Technical Field
The utility model relates to the technical field of injectors, in particular to a fixed-dose needleless injector.
Background
The needle injector does not need a needle head when medicine injection is carried out, and uses a high-pressure jet principle to enable medicine liquid to form a thin liquid flow which instantly penetrates through the skin to reach the subcutaneous part.
When the existing needleless injector is used for injection, as the injector is almost provided with a device which can be used for quantitative determination, the liquid medicine which can be injected for several times is always injected once, and the injection of redundant liquid medicine not only can cause adverse effect on the body of a patient, but also causes the waste of the liquid medicine, so that the needleless injector with fixed dose is provided.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a fixed dose needleless injector to solve the above-mentioned problems in the background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a fixed-dose needleless injector comprises a shell, wherein an injection tube is sleeved in the shell, the injection tube is connected with the shell in a sliding manner, a second clamping ring is sleeved outside the injection tube, the second clamping ring is fixedly connected with the injection tube, a rotary cover is sleeved outside the second clamping ring and is connected with the second clamping ring in a rotating manner, the rotary cover is sleeved outside the shell and is in threaded connection with the shell, a first barrel is fixedly connected with one side of the shell and is communicated with an inner cavity of the shell, a liquid medicine bottle is sleeved in the first barrel and is in threaded connection with the first barrel, a first one-way air valve is fixedly connected with one end of the liquid medicine bottle in the first barrel in a sleeved manner, an observation window is arranged on the surface of the liquid medicine bottle, a second barrel is sleeved in the liquid medicine bottle, and is in threaded connection with the liquid medicine bottle, the second barrel is sleeved with a soft rubber pipe at one end outside the medicinal liquid bottle sleeve setting range, a second one-way air valve is sleeved in the soft rubber pipe, and the second one-way air valve is fixedly connected with the soft rubber pipe.
As a further aspect of the present invention: the liquid medicine bottle is internally sleeved with a third one-way air valve which is fixedly connected with the liquid medicine bottle.
As a further aspect of the present invention: and a piston is arranged outside one end of the injection tube and is in sliding connection with the injection tube.
As a further aspect of the present invention: one side of the piston is fixedly connected with a push rod.
As a further aspect of the present invention: the liquid medicine bottle is sleeved with a clamping ring, and the clamping ring is fixedly connected with the first barrel.
As a further aspect of the present invention: and a sealing ring is arranged in the screw cap and is fixedly connected with the inner wall of the screw cap.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an extrusion to the flexible glue pipe forces the liquid medicine to get into in the syringe, is existing the scale in the liquid medicine bottle and is existing the scale contrast in the liquid medicine bottle now according to original liquid medicine and can learn the dose that exists the liquid medicine in the syringe now to realized the ration to the liquid medicine, thereby avoided the patient to inject too much liquid medicine and avoided the waste of liquid medicine.
2. The utility model discloses because the injection syringe can be taken out in the casing, so can change the injection syringe, and its easy operation of changing only needs to rotate the spiral cover, and the threaded connection of removing spiral cover and casing can.
Drawings
Fig. 1 is a schematic view of a fixed dose needleless injector.
Fig. 2 is a front view of a fixed-dose needleless injector.
Fig. 3 is an enlarged schematic view of a portion a in fig. 1.
Shown in the figure: the device comprises a shell 1, a screw cap 2, an injection tube 3, a first cylinder 4, a first one-way air valve 5, a clamping ring 6, a liquid medicine bottle 7, a second cylinder 8, a soft rubber tube 9, a second one-way air valve 10, a sealing ring 11, a third one-way air valve 12, an observation window 13, a push rod 14, a piston 15 and a second clamping ring 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a fixed-dose needleless injector includes a housing 1, a screw cap 2, an injection tube 3, a first cylinder 4, a first one-way air valve 5, a snap ring 6, a liquid medicine bottle 7, a second cylinder 8, a flexible glue tube 9, a second one-way air valve 10, a sealing ring 11, a third one-way air valve 12, an observation window 13, a push rod 14, a piston 15, and a second snap ring 16, wherein the injection tube 3 is sleeved in the housing 1, the injection tube 3 is slidably connected to the housing 1, the injection tube 3 is sleeved with the second snap ring 16, the second snap ring 16 is fixedly connected to the injection tube 3, the second snap ring 16 is sleeved with the screw cap 2, the screw cap 2 is rotatably connected to the second snap ring 16, the screw cap 2 is sleeved outside the housing 1 and is in threaded connection with the housing 1, one side of the housing 1 is fixedly connected to the first cylinder 4, the first cylinder 4 is communicated with an inner cavity of the housing 1, the liquid medicine bottle 7, the liquid medicine bottle 7 is in threaded connection with the first barrel 4, one end of the liquid medicine bottle 7, which is sleeved in the first barrel 4, is fixedly connected with a first one-way air valve 5, the passing path of the first one-way air valve 5 is that the liquid medicine bottle 7 enters the first barrel 4, the surface of the liquid medicine bottle 7 is provided with an observation window 13, the surface of the observation window 13 is provided with scales, the liquid medicine bottle 7 is sleeved with a second barrel 8, the second barrel 8 is in threaded connection with the liquid medicine bottle 7, the soft rubber tube 9 is sleeved outside the range of the liquid medicine bottle 7 sleeved by the second barrel 8, the soft rubber tube 9 is sleeved with a second one-way air valve 10, the second one-way air valve 10 is fixedly connected with the soft rubber tube 9, the passing path of the second one-way air valve 10 is that the soft rubber tube 9 is externally connected, the liquid medicine bottle 7 is sleeved with a third one-way air valve 12, the third one-way air valve 12 is fixedly connected with the liquid medicine bottle 7, a piston 15 is arranged outside one end of the injection tube 3, the piston 15 is connected with the injection tube 3 in a sliding mode, a push rod 14 is fixedly connected to one side of the piston 15, a clamping ring 6 is sleeved outside the liquid medicine bottle 7, the clamping ring 6 is fixedly connected with the first barrel 4, a sealing ring 11 is arranged in the screw cap 2, and the sealing ring 11 is fixedly connected with the inner wall of the screw cap 2.
The utility model discloses a theory of operation is:
when in use, the injection tube 3 is inserted into the shell 1, the screw cap 2 is further rotated, the screw cap 2 is in threaded connection with the shell 1 until the sealing ring 11 is in close contact with one end of the shell 1, the liquid medicine bottle 7 is further screwed into the first barrel 4 until one end of the first barrel 4 is in contact with the snap ring 6, the soft rubber tube 9 is further pinched and rotated at the position of the second barrel 8 until the second barrel 8 is in contact with the liquid medicine bottle 7, the third one-way air valve 12 is further fed into the liquid medicine bottle 7 after the liquid medicine is further fed into the liquid medicine bottle 7, the shell 1 is further turned until the liquid medicine bottle 7 is vertical to the ground, the soft rubber tube 9 is further pinched according to the scale on the observation window 13, so that the air in the soft rubber tube 9 is fed into the liquid medicine bottle 7 through the third one-way air valve 12, and the liquid medicine in the liquid medicine bottle 7 is forced to enter the first barrel 4 through the first one-way air valve 5, further in the liquid medicine gets into injection tube 3 through first barrel 4, the scale that exists in liquid medicine bottle 7 according to original liquid medicine and the scale that exists now in liquid medicine bottle 7 contrast can learn the dose that exists now in the liquid medicine in injection tube 3 to realized the ration to the liquid medicine, thereby avoided the patient to inject too much liquid medicine and avoided the waste of liquid medicine.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. A fixed-dose needleless injector comprising a housing (1), characterized in that: the injection syringe (3) is sleeved in the shell (1), the injection syringe (3) is connected with the shell (1) in a sliding manner, a second clamping ring (16) is sleeved outside the injection syringe (3), the second clamping ring (16) is fixedly connected with the injection syringe (3), a rotary cover (2) is sleeved outside the second clamping ring (16), the rotary cover (2) is rotatably connected with the second clamping ring (16), the rotary cover (2) is sleeved outside the shell (1) and is in threaded connection with the shell (1), a first barrel (4) is fixedly connected with one side of the shell (1), the first barrel (4) is communicated with an inner cavity of the shell (1), a liquid medicine bottle (7) is sleeved in the first barrel (4), the liquid medicine bottle (7) is in threaded connection with the first barrel (4), a first one-way air valve (5) is fixedly connected with one end of the liquid medicine bottle (7) in the first barrel (4), the surface of liquid medicine bottle (7) is provided with observation window (13), the surface of observation window (13) is provided with the scale, liquid medicine bottle (7) endotheca is equipped with second barrel (8), second barrel (8) and liquid medicine bottle (7) threaded connection, second barrel (8) are established the outer one end overcoat of scope at liquid medicine bottle (7) cover and are equipped with flexible glue pipe (9), flexible glue pipe (9) endotheca is equipped with second one-way pneumatic valve (10), second one-way pneumatic valve (10) and flexible glue pipe (9) fixed connection.
2. A fixed-dose needleless injector as in claim 1 wherein: the liquid medicine bottle (7) is internally sleeved with a third one-way air valve (12), and the third one-way air valve (12) is fixedly connected with the liquid medicine bottle (7).
3. A fixed-dose needleless injector as in claim 1 wherein: a piston (15) is arranged outside one end of the injection tube (3), and the piston (15) is connected with the injection tube (3) in a sliding mode.
4. A fixed-dose needleless injector as claimed in claim 3 wherein: one side of the piston (15) is fixedly connected with a push rod (14).
5. A fixed-dose needleless injector as in claim 1 wherein: the medicine liquid bottle (7) is sleeved with a clamping ring (6), and the clamping ring (6) is fixedly connected with the first barrel body (4).
6. A fixed-dose needleless injector as in claim 1 wherein: a sealing ring (11) is arranged in the screw cap (2), and the sealing ring (11) is fixedly connected with the inner wall of the screw cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021645951.1U CN213374437U (en) | 2020-08-10 | 2020-08-10 | Fixed-dose needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021645951.1U CN213374437U (en) | 2020-08-10 | 2020-08-10 | Fixed-dose needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213374437U true CN213374437U (en) | 2021-06-08 |
Family
ID=76204948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021645951.1U Expired - Fee Related CN213374437U (en) | 2020-08-10 | 2020-08-10 | Fixed-dose needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213374437U (en) |
-
2020
- 2020-08-10 CN CN202021645951.1U patent/CN213374437U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60021275D1 (en) | MULTIPLE DOSE SYRINGE | |
| GB1066739A (en) | Liquid dispensing and metering assembly | |
| CN209827830U (en) | Fixed-dose needleless injector | |
| CN213374437U (en) | Fixed-dose needleless injector | |
| CN212090435U (en) | Anesthesia is clinical with pjncture needle | |
| CN213608991U (en) | Can fix a position syringe of ability measurement angle | |
| CN206499731U (en) | A kind of emptying type syringe | |
| CN111035439A (en) | Nerve block puncture medicine injection device | |
| CN211634678U (en) | Thin-head needle syringe | |
| CN2882649Y (en) | Needle for insulin injection | |
| CN211751554U (en) | Drug delivery device | |
| CN201537286U (en) | Flushing injector | |
| CN107029318A (en) | Disposable medical fluid injector | |
| CN209048812U (en) | A kind of spiral syringe | |
| CN207694024U (en) | Disposable medical fluid injector | |
| CN211188580U (en) | Needle head adapter for connecting double needle cylinders | |
| CN113018592A (en) | Syringe with a needle | |
| CN111097083A (en) | Special needleless injector for beauty treatment | |
| CN2507470Y (en) | Residueless self-destroying expendable injector | |
| CN204092689U (en) | A kind of intestine moistening gel instrument for defecation | |
| CN209734663U (en) | Dental syringe | |
| CN217938685U (en) | Liquid medicine bag | |
| CN111097084B (en) | Needleless injector matched with medicine filling bottle | |
| CN211214776U (en) | Needle connector with replaceable needle cylinder | |
| CN219231018U (en) | Face beautifying injector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210608 |