CN202366261U - Needleless injector - Google Patents
Needleless injector Download PDFInfo
- Publication number
- CN202366261U CN202366261U CN201120501808XU CN201120501808U CN202366261U CN 202366261 U CN202366261 U CN 202366261U CN 201120501808X U CN201120501808X U CN 201120501808XU CN 201120501808 U CN201120501808 U CN 201120501808U CN 202366261 U CN202366261 U CN 202366261U
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- CN
- China
- Prior art keywords
- assembling
- needleless injector
- overcoat
- spring
- plastic cement
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a needleless injector, which is provided with an injection mechanism, a power mechanism and a protection mechanism; the injection mechanism comprises an injector jacket, a mandrel and a rubber plug; the injector jacket is provided with an injection end and an assembly end, and the injection end is provided with an injection hole; the power mechanism is provided with a plastic jacket, a spring, an upper end positioning device, a plunger, an anticollision iron ring and a handle pressing unit, wherein the plastic jacket is provided with a first assembly end, a second assembly end and a slot hole; the upper end positioning device is provided with an assembly part and a positioning rod; the handle pressing unit is arranged outside the plastic jacket and is provided with a handle, a rotating shaft, a pedestal and a handle pressing spring; and the protection mechanism is movably arranged below the plastic jacket and the handle pressing unit. The needleless injector disclosed by the utility model is simple in structure, low in cost and safe to use.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of needleless injector.
Background technology
Needleless injector is a kind ofly to produce the hypodermic syringe that high number jet directly gets into the people through the powered medicine.Needleless injector mainly is made up of two parts: is used for sucking medicine, splendid attire medicine and launches the injection tube of medicine, and the power set that can produce thrust when triggering.Needleless injector can be avoided conventional inevitably some defectives of needle injection that have, as disease propagation, syringe needle infect, to the syringe needle fear etc.But needleless injector structure relative complex of the prior art, cost is higher, can not be widely used.
Therefore, not enough to prior art, provide needleless injector a kind of simple in structure, with low cost very necessary to overcome the prior art deficiency.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art and a kind of needleless injector is provided, and this needleless injector is simple in structure, and is with low cost.
The purpose of this utility model realizes through following technical measures.
A kind of needleless injector is provided with injection mechanism, actuating unit and protection mechanism;
Said injection mechanism comprises syringe jacket, core bar and plug;
Said syringe jacket is provided with dispensing end and assembling end; Said dispensing end is provided with injection orifice; Said core bar is arranged at said syringe jacket inside, and said plug is arranged at an end of said core bar, and the other end of said core bar is exposed to the assembling end of said syringe jacket;
Said actuating unit is provided with plastic cement overcoat, spring, goes up end positioning device, jumper bar, crashproof iron ring and by the unit; Said plastic cement overcoat is provided with the first assembling end, second assembling end and the slotted eye; The said first assembling end, the said second assembling end are arranged at the two ends of said plastic cement overcoat respectively; Said slotted eye is arranged at the middle part of said plastic cement overcoat, said slotted eye with said by corresponding cell position;
The said end positioning device of going up is provided with department of assembly and locating rod, and said department of assembly is fixedly connected with said locating rod;
The assembling end of said syringe jacket is fixedly connected with said crashproof iron ring, and the said second assembling end is assemblied in said crashproof iron ring, and said department of assembly is assemblied in the said first assembling end;
Said jumper bar is provided with first stiff end and second stiff end, the fixing assembling of the other end of said second stiff end and said core bar, and said both ends of the spring is sheathed on said locating rod and said first stiff end respectively;
Said outside by being arranged at the unit in said plastic cement overcoat; Said by being provided with activation members to the unit; Said activation members wears said slotted eye, when said spring is in the state of stretching, and said activation members and said spring butt; When said spring is in compressive state, said activation members and said jumper bar butt;
Said protection mechanism is movably set in said plastic cement overcoat, and said protection mechanism is arranged at said by unit below.
Above-mentioned by being provided with the unit handle, rotating shaft, pedestal and by spring; Said pedestal is fixed in said plastic cement overcoat; Said rotating shaft is arranged at said pedestal, and an end of said handle is an activation members, and the other end of said handle is a pressing piece; Said handle is movably set in said rotating shaft, and is said by being fixed in spring said pedestal and being positioned at said pressing piece below.
Above-mentioned handle also is provided with axis hole, and said axis hole activity is assemblied in said rotating shaft.
The said syringe shell is provided with locating hole;
Said protection mechanism is provided with steel ball, switch protection positioning sleeve and switch protection overcoat;
Said switch protection positioning sleeve is provided with sliding tray; Said switch protection positioning sleeve is sheathed on said syringe shell; Said locating hole is set to corresponding with said sliding tray; Said switch protection overcoat is assemblied in said switch protection positioning sleeve, and said steel ball is arranged at said locating hole, and said steel ball partly passes said sliding tray and pastes mutually with said switch protection overcoat.
Preferably, the assembling end of said syringe overcoat is provided with external screw thread, and said crashproof iron ring is provided with female thread, and the assembling end of said syringe jacket is threaded with said crashproof iron ring.
Preferably, above-mentioned department of assembly and said locating rod are set to integrated formed structure.
Preferably, above-mentioned department of assembly is provided with external screw thread, and the said first assembling end is provided with female thread, said department of assembly and the said first assembling end threaded engagement.
Preferably, the above-mentioned end positioning device of going up is set to screw.
Preferably, the other end of above-mentioned second stiff end and said core bar is set to interference fit.
Preferably, the assembling end of above-mentioned plastic cement overcoat and said crashproof iron ring are set to integrated formed structure.
The needleless injector of this utility model is provided with injection mechanism, actuating unit and protection mechanism; Said injection mechanism comprises syringe jacket, core bar and plug; Said syringe jacket is provided with dispensing end and assembling end; Said dispensing end is provided with injection orifice; Said core bar is arranged at said syringe jacket inside, and said plug is arranged at an end of said core bar, and the other end of said core bar is exposed to the assembling end of said syringe jacket; Said actuating unit is provided with plastic cement overcoat, spring, goes up end positioning device, jumper bar, crashproof iron ring and by the unit; Said plastic cement overcoat is provided with the first assembling end, second assembling end and the slotted eye; The said first assembling end, the said second assembling end are arranged at the two ends of said plastic cement overcoat respectively; Said slotted eye is arranged at the middle part of said plastic cement overcoat, said slotted eye with said by corresponding cell position; The said end positioning device of going up is provided with department of assembly and locating rod, and said department of assembly is fixedly connected with said locating rod; The assembling end of said plastic cement overcoat is fixedly connected with said crashproof iron ring, and the said second assembling end is assemblied in said crashproof iron ring, and said department of assembly is assemblied in the said first assembling end; Said jumper bar is provided with first stiff end and second stiff end, the fixing assembling of the other end of said second stiff end and said core bar, and said both ends of the spring is sheathed on said locating rod and said second stiff end respectively; Said outside by being arranged at the unit in said plastic cement overcoat; Said by being provided with activation members to the unit; Said activation members wears said slotted eye, when said spring is in the state of stretching, and said activation members and said spring butt; When said spring is in compressive state, said activation members and said jumper bar butt; Said protection mechanism is movably set in said plastic cement overcoat, and said protection mechanism is arranged at said by unit below.This needleless injector is simple in structure, and is with low cost, safe in utilization.
Description of drawings
Utilize accompanying drawing that this utility model is further specified, but the content in the accompanying drawing does not constitute any restriction to this utility model.
Fig. 1 is the structural representation of a kind of needleless injector of this utility model.
Fig. 2 is the blast structural representation of Fig. 1.
Fig. 3 is the angle cutaway view of Fig. 1.
Fig. 4 is other angle cutaway view of Fig. 1.
In Fig. 1, Fig. 2, Fig. 3 and Fig. 4, comprising:
Syringe jacket 110, dispensing end 111, assembling end 112,
Plastic cement overcoat 210, the first assembling end, 211, the second assembling end 212, slotted eye 213, locating hole 214,
Last end positioning device 230, department of assembly 231, locating rod 232,
Jumper bar 240, first stiff end 241, second stiff end 242,
By unit 260, handle 261, activation members 2611, pressing piece 2612,
Switch protection positioning sleeve 320, sliding tray 321,
Switch protection overcoat 330.
The specific embodiment
In conjunction with following examples this utility model is described further.
A kind of needleless injector, as shown in Figure 1, Fig. 2, Fig. 3 and shown in Figure 4 are provided with injection mechanism, actuating unit and protection mechanism.Injection mechanism is used to take up medicinal liquid and carries out injection delivery, the strength of moment when actuating unit provides injecting liquid drug, and protector is used to protect actuating unit to prevent maloperation.
Injection mechanism comprises syringe jacket 110, core bar 120 and plug 130.
Syringe jacket 110 is provided with dispensing end 111 and assembling end 112; Dispensing end 111 is provided with injection orifice; Core bar 120 is arranged at syringe jacket 110 inside, and plug 130 is arranged at an end of core bar 120, and the other end of core bar 120 is exposed to the assembling end 112 of syringe jacket 110.Core bar 120 can move in syringe jacket 110, and when outer force urges is exposed the core bar 120 of syringe jacket 110 assembling ends 112, core bar 120 will drive plug 130 and move towards dispensing end 111, and the medicinal liquid in the syringe jacket 110 is sprayed from injection port.
Actuating unit is provided with plastic cement overcoat 210, spring 220, goes up end positioning device 230, jumper bar 240, crashproof iron ring 250 and by unit 260.
Last end positioning device 230 is provided with department of assembly 231 and locating rod 232, and department of assembly 231 is fixedly connected with locating rod 232.Preferably, department of assembly 231 is set to integrated formed structure with locating rod 232.Concrete, last end positioning device 230 is set to screw.
The assembling end 112 of plastic cement overcoat 210 is fixedly connected with crashproof iron ring 250.Preferably, the assembling end 112 of plastic cement overcoat 210 is set to integrated formed structure with crashproof iron ring 250.Crashproof iron ring 250 is used to protect plastic cement overcoat 210, prevents that spring 220 dynamics in the process of opening is excessive and plastic cement overcoat 210 is caused damage.
The second assembling end 112 is assemblied in crashproof iron ring 250, and department of assembly 231 is assemblied in the first assembling end 112.Concrete, the assembling end 112 of syringe jacket 110 is provided with external screw thread, and crashproof iron ring 250 is provided with female thread, and the assembling end 112 of syringe jacket 110 is threaded with crashproof iron ring 250.Department of assembly 231 is provided with external screw thread, and the first assembling end 112 is provided with female thread, department of assembly 231 and the first assembling end, 112 threaded engagement.
By being arranged at unit 260 plastic cement overcoat 210 outsides; By being provided with activation members 2611 to unit 260; Activation members 2611 wears slotted eye 213, when said spring 220 is in the state of stretching, and activation members 2611 and spring 220 butts; When spring 220 is in compressive state, activation members 2611 and jumper bar 240 butts.
By being provided with unit 260 handle 261, rotating shaft 262, pedestal 263 and by spring 264; Pedestal 263 is fixed in plastic cement overcoat 210; Rotating shaft 262 is arranged at pedestal 263, and an end of handle 261 is an activation members 2611, and the other end of handle 261 is a pressing piece 2612; Handle 261 is movably set in rotating shaft 262, by being fixed in spring 264 pedestal 263 and being positioned at pressing piece 2612 belows.Handle 261 also is provided with axis hole 265, and axis hole 265 activities are assemblied in rotating shaft 262.
When depression of handle 261, handle 261 can serve as that axle rotates with rotating shaft 262, and activation members 2611 will be through 213 pairs of trigger mechanism generations of slotted eye effect.
By the starting drive that is this needleless injector of control to unit 260, therefore, prevent operating by producing unit 260.This needleless injector is provided with protection mechanism.Protection mechanism is movably set in plastic cement overcoat 210, and protection mechanism is arranged at by 260 belows, unit.Protection mechanism is provided with steel ball 310, switch protection positioning sleeve 320 and switch protection overcoat 330.Syringe shell is provided with locating hole 214.
Switch protection positioning sleeve 320 is provided with sliding tray 321; Switch protection positioning sleeve 320 is sheathed on plastic cement overcoat 210; Locating hole 214 is set to corresponding with sliding tray 321 positions; Switch protection overcoat 330 is assemblied in switch protection positioning sleeve 320, and steel ball 310 is arranged at locating hole 214, and steel ball 310 parts are passed sliding tray 321 and pasted mutually with switch protection overcoat 330.
Switch protection positioning sleeve 320 can be under the impetus of external force with switch protection overcoat 330; Sliding tray 321 slides along steel ball 310, and the end positions after the contacting of steel ball 310 and sliding tray 321 is the displacement of switch protection positioning sleeve 320 and switch protection overcoat 330.
This needleless injector, its use is such: through at first spring 220 being compressed with the supporting pressue device of this needleless injector, at this moment, spring 220 is in compressive state, activation members 2611 and jumper bar 240 butts.The required medicinal liquid of the good ampere bottle of artificial suction is assembled on the needleless injector, and aligning needs the place of injection; Open switch protection positioning sleeve 320 and switch protection overcoat 330, press needleless injector, on lift handle 261; Activation members 2611 will temporarily be separated with jumper bar 240, and spring 220 is under the elastic force effect, and second stiff end, the 242 promotion core bars 120 that moment promotes jumper bar 240 move; Under powerful pressure effect, medicinal liquid moment injection is accomplished.By resetting spring 264, handle 261 drives activation members 2611 and resets then, and spring 220 is in non-compressed state.
This needleless injector is simple in structure, and is with low cost, safe in utilization.But moment is accomplished injecting liquid drug, avoids patient's frightened emotion.
Should be noted that at last; Above embodiment only be used to explain this utility model technical scheme but not to the restriction of this utility model protection domain; Although this utility model has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of this utility model, and do not break away from the essence and the scope of this utility model technical scheme.
Claims (10)
1. a needleless injector is characterized in that: be provided with injection mechanism, actuating unit and protection mechanism;
Said injection mechanism comprises syringe jacket, core bar and plug;
Said syringe jacket is provided with dispensing end and assembling end; Said dispensing end is provided with injection orifice; Said core bar is arranged at said syringe jacket inside, and said plug is arranged at an end of said core bar, and the other end of said core bar is exposed to the assembling end of said syringe jacket;
Said actuating unit is provided with plastic cement overcoat, spring, goes up end positioning device, jumper bar, crashproof iron ring and by the unit; Said plastic cement overcoat is provided with the first assembling end, second assembling end and the slotted eye; The said first assembling end, the said second assembling end are arranged at the two ends of said plastic cement overcoat respectively; Said slotted eye is arranged at the middle part of said plastic cement overcoat, said slotted eye with said by corresponding cell position;
The said end positioning device of going up is provided with department of assembly and locating rod, and said department of assembly is fixedly connected with said locating rod;
The assembling end of said syringe jacket is fixedly connected with said crashproof iron ring, and the said second assembling end is assemblied in said crashproof iron ring, and said department of assembly is assemblied in the said first assembling end;
Said jumper bar is provided with first stiff end and second stiff end, the fixing assembling of the other end of said second stiff end and said core bar, and said both ends of the spring is sheathed on said locating rod and said first stiff end respectively;
Said outside by being arranged at the unit in said plastic cement overcoat; Said by being provided with activation members to the unit; Said activation members wears said slotted eye, when said spring is in the state of stretching, and said activation members and said spring butt; When said spring is in compressive state, said activation members and said jumper bar butt;
Said protection mechanism is movably set in said plastic cement overcoat, and said protection mechanism is arranged at said by unit below.
2. needleless injector according to claim 1; It is characterized in that: said by being provided with the unit handle, rotating shaft, pedestal and by spring, said pedestal is fixed in said plastic cement overcoat, said rotating shaft is arranged at said pedestal; One end of said handle is an activation members; The other end of said handle is a pressing piece, and said handle is movably set in said rotating shaft, and is said by being fixed in spring said pedestal and being positioned at said pressing piece below.
3. needleless injector according to claim 2 is characterized in that: said handle also is provided with axis hole, and said axis hole activity is assemblied in said rotating shaft.
4. needleless injector according to claim 3 is characterized in that: said syringe shell is provided with locating hole;
Said protection mechanism is provided with steel ball, switch protection positioning sleeve and switch protection overcoat;
Said switch protection positioning sleeve is provided with sliding tray; Said switch protection positioning sleeve is sheathed on said syringe shell; Said locating hole is set to corresponding with said sliding tray position; Said switch protection overcoat is assemblied in said switch protection positioning sleeve, and said steel ball is arranged at said locating hole, and said steel ball partly passes said sliding tray and pastes mutually with said switch protection overcoat.
5. needleless injector according to claim 1 is characterized in that: the assembling end of said syringe jacket is provided with external screw thread, and said crashproof iron ring is provided with female thread, and the assembling end of said syringe jacket is threaded with said crashproof iron ring.
6. needleless injector according to claim 1 is characterized in that: said department of assembly and said locating rod are set to integrated formed structure.
7. needleless injector according to claim 1 is characterized in that: said department of assembly is provided with external screw thread, and the said first assembling end is provided with female thread, said department of assembly and the said first assembling end threaded engagement.
8. needleless injector according to claim 1 is characterized in that: the said end positioning device of going up is set to screw.
9. needleless injector according to claim 1 is characterized in that: the other end of said second stiff end and said core bar is set to interference fit.
10. needleless injector according to claim 1 is characterized in that: the assembling end of said plastic cement overcoat and said crashproof iron ring are set to integrated formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120501808XU CN202366261U (en) | 2011-12-06 | 2011-12-06 | Needleless injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120501808XU CN202366261U (en) | 2011-12-06 | 2011-12-06 | Needleless injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202366261U true CN202366261U (en) | 2012-08-08 |
Family
ID=46589986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120501808XU Withdrawn - After Issue CN202366261U (en) | 2011-12-06 | 2011-12-06 | Needleless injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202366261U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102488944A (en) * | 2011-12-06 | 2012-06-13 | 广东康尔美医疗器械有限公司 | Needle-free injector |
| CN106344205A (en) * | 2016-10-31 | 2017-01-25 | 湖北省国融商贸有限公司 | Needle-free high-speed jet flow injection syringe |
-
2011
- 2011-12-06 CN CN201120501808XU patent/CN202366261U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102488944A (en) * | 2011-12-06 | 2012-06-13 | 广东康尔美医疗器械有限公司 | Needle-free injector |
| CN102488944B (en) * | 2011-12-06 | 2013-07-31 | 广东康尔美医疗器械有限公司 | Needle-free injector |
| CN106344205A (en) * | 2016-10-31 | 2017-01-25 | 湖北省国融商贸有限公司 | Needle-free high-speed jet flow injection syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120808 Effective date of abandoning: 20130731 |
|
| RGAV | Abandon patent right to avoid regrant |