CN205019532U

CN205019532U - Needle -free syringe

Info

Publication number: CN205019532U
Application number: CN201520756084.1U
Authority: CN
Inventors: 李本良; 王炳峰; 杜强
Original assignee: Sichuan Yi Da Science And Technology Ltd
Current assignee: Sichuan Yi Da Science And Technology Ltd
Priority date: 2015-09-28
Filing date: 2015-09-28
Publication date: 2016-02-10
Anticipated expiration: 2025-09-28

Abstract

The utility model discloses a needle -free syringe, including end cap, loading hole, ampoule strorage device, push rod, piston, acrosome, runner, calibrated scale, injection button, safety lock, compression spring, casing, core bar, adjustment button and needle file, be provided with the loading hole on the end cap, its end cap fixed mounting is on ampoule strorage device, ampoule strorage device's inside is provided with the push rod, its push rod and needle file fastening connection, and the needle file setting is on the top of casing, both ends about the casing are installed respectively to adjustment button and runner, this needle -free syringe, ampoule strorage device adopt the instant ceramic grinding of stereoplasm, and after the repetitious usage, ampoule strorage device easily retrieve, can reuse through processing, great reduction manufacturing cost, the used calibrated scale of the device is the electron calibrated scale, and calibrated scale sensitivity and accuracy are higher, and the user is convenient for adjust the medicine content of at every turn injecting.

Description

A kind of needleless injector

Technical field

This utility model relates to medication injections apparatus applied technical field, especially a kind of needleless injector.

Background technology

Needleless injector is a kind of power produced by spring energy release, to medicinal liquid pressurization, make high pressure medicinal liquid by small hole formation high-speed jet, penetrate human body or animal skin, enter human body or animal underlying muscle tissue, complete a kind of syringe of function of injection.Such needleless injector is also known as active needleless injector or spring-driven needleless injector.Subdermal muscle injection is modal a kind of medicinal liquid mode of movement, traditional have the entry needle of needle injection to thrust human body skin to bring pain clearly to patient, needleless injector alleviates syringe needle greatly and to puncture the pain brought, the cross infection phenomenon simultaneously preventing syringe needle again to stab medical worker and patient to produce; And high-speed jet injection enters subcutaneous medicinal liquid relative distribution, be conducive to medicinal liquid and absorb.

Utility model content

Prior art is difficult to the productive life needs meeting people, in order to solve needleless injector of the prior art, injection activation plug device, security lock arrangement and adjustment pushbutton unit complex structure, processing and manufacturing cost is high, operation is the problem such as inconvenient also, the utility model proposes a kind of needleless injector.

For realizing this technical purpose, the technical solution adopted in the utility model is: a kind of needleless injector, comprises end cap, loading hole, ampoule storing unit, push rod, piston, acrosome, runner, graduated disc, injection button, safety lock, Compress Spring, housing, core bar, adjustment button and needle stand; Described end cap is provided with loading hole, its end cap is fixedly mounted on ampoule storing unit; The inside of described ampoule storing unit is provided with push rod, and its push rod and needle stand are fastenedly connected, and needle stand is arranged on the top of housing; Described adjustment button and runner are arranged on the two ends, left and right of housing respectively; The inside of described housing is provided with core bar, is installed with acrosome at the head of core bar; Described enclosure interior acrosome junction is provided with piston; The surface of described housing is provided with graduated disc, is provided with injection button at the afterbody of housing; Described injection button and safe locking are solidly connected; Described core bar and safety lock are flexibly connected by Compress Spring; The right-hand member of described Compress Spring is looped around on safety lock.

As further technical scheme of the present utility model: described ampoule storing unit adopts the instant pottery of hard to make, and structure is cylindrical, and its capacity is 2ml-15ml, is provided with rubber piston between ampoule and push rod, rubber piston and push rod compact siro spinning technology.

Further, described housing is that the core bar of titanium alloy material matter enclosure interior and piston can be free to slide in enclosure interior, this device graduated disc used is electronics graduated disc, and graduated disc is embedded in surface of shell, by wire with regulate button to be electrically connected on power supply.

Further, the length of described core bar is the 1/3-1/4 of whole device, and the cylinder of the piston of core bar front end to be upper and lower surface be inner sunken face, is equipped with steel ball in its concave curved surface; Safety lock is provided with the aperture of annular, in the aperture of annular, is inserted with the straight pin adapted.

Compared with prior art, this utility model has following beneficial effect: this needleless injector, and ampoule storing unit adopts the instant pottery of hard to make, after repeatedly using, ampoule storing unit is easy to reclaim, and can reuse, greatly reduce production cost through processing; This device graduated disc used is electronics graduated disc, and graduated disc is embedded in surface of shell, utilizes wire and regulates button to be electrically connected, graduated disc sensitivity and degree of accuracy higher, user is convenient to regulate each injected medicament contg; The cylinder of the piston of core bar front end to be upper and lower surface be inner sunken face, is equipped with steel ball in its concave curved surface, greatly reduces the frictional force between piston and shell body medial wall.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model.

In figure: 1 end cap, 2 loading holes, 3 ampoule storing units, 4 push rods, 5 pistons, 6 acrosomes, 7 runners, 8 graduated discs, 9 injection buttons, 10 safety locks, 11 Compress Springs, 12 housings, 13 core bars, 14 regulate button and 15 needle stands.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of this utility model protection.

Refer to Figure of description 1, in this utility model embodiment, a kind of needleless injector, comprises end cap 1, loading hole 2, ampoule storing unit 3, push rod 4, piston 5, acrosome 6, runner 7, graduated disc 8, injection button 9, safety lock 10, Compress Spring 11, housing 12, core bar 13, regulates button 14 and needle stand 15; Described end cap 1 is provided with loading hole 2, and its end cap 1 is fixedly mounted on ampoule storing unit 3; The inside of described ampoule storing unit 3 is provided with push rod 4, and its push rod 4 and needle stand 15 are fastenedly connected, and needle stand 15 is arranged on the top of housing 12; Described adjustment button 14 and runner 7 are arranged on the two ends, left and right of housing 12 respectively; The inside of described housing 12 is provided with core bar 13, is installed with acrosome 6 at the head of core bar 13; Described housing 12 inner acrosome 6 junction is provided with piston 5; The surface of described housing 12 is provided with graduated disc 8, is provided with injection button 14 at the afterbody of housing 12; Described injection button 14 and safety lock 10 are fastenedly connected; Described core bar 13 and safety lock 18 are flexibly connected by Compress Spring 11; The right-hand member of described Compress Spring 11 is looped around on safety lock 10.

As further technical scheme of the present utility model: described ampoule storing unit 3 adopts the instant pottery of hard to make, after repeatedly using, ampoule storing unit 3 is easy to reclaim, can reuse through processing, greatly reduce production cost, structure is cylindrical, and its capacity is 2-15ml, rubber piston is provided with, rubber piston and push rod 4 compact siro spinning technology between ampoule storing unit 3 and push rod 4; Described housing 12 is titanium alloy material, the core bar of housing 12 inside and piston 5 can slide at housing 12 internal freedom, this device graduated disc 8 used is electronics graduated disc 8, graduated disc 8 is embedded in surface of shell, be electrically connected on power supply by wire and adjustment button, graduated disc 8 sensitivity and degree of accuracy higher, user is convenient to regulate each injected medicament contg; The length of described core bar 13 is the 1/3-1/4 of whole device, and the piston 5 of core bar 13 front end is the cylinder of inner sunken face for upper and lower surface, in its concave curved surface, steel ball is housed, greatly reduces the frictional force between piston 5 and shell body 12 medial wall; Safety lock 10 is provided with the aperture of annular, in the aperture of annular, is inserted with the straight pin adapted.

This utility model is waited in use, for insulin injection, is first arranged on by insulin in ampoule storing unit 3, push rod 4 is utilized to be withstood, by regulating button 14 to regulate the insulin content this time needing injection, after adjustment, can show on graduated disc 8; By runner 7 safety lock 10, adjustment button 14 is locked, after, pressing injection button 9 due to the pressure of Compress Spring 11 can promote core bar 13, and then promotes push rod 4 by piston 5 and make loading hole 2 by infusion of medicine to subcutaneous, the pain produced when greatly reducing injection.

To those skilled in the art, but this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or basic feature, can realize this utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in this utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.

The above; be only preferred embodiment of the present utility model; not in order to limit this utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solutions of the utility model.

Claims

1. a needleless injector, comprises end cap (1), loading hole (2), ampoule storing unit (3), push rod (4), piston (5), acrosome (6), runner (7), graduated disc (8), injection button (9), safety lock (10), Compress Spring (11), housing (12), core bar (13), regulates button (14) and needle stand (15); It is characterized in that: described end cap (1) is provided with loading hole (2), its end cap (1) is fixedly mounted on ampoule storing unit (3); The inside of described ampoule storing unit (3) is provided with push rod (4), and its push rod (4) and needle stand (15) are fastenedly connected, and needle stand (15) is arranged on the top of housing (12); Described adjustment button (14) and runner (7) are arranged on the two ends, left and right of housing (12) respectively; The inside of described housing (12) is provided with core bar (13), and the head of core bar (13) is installed with acrosome (6); Described housing (12) inner acrosome (6) junction is provided with piston (5); The surface of described housing (12) is provided with graduated disc (8), is provided with injection button (9) at the afterbody of housing (12); Described injection button (9) and safety lock (10) are fastenedly connected; Described core bar (13) and safety lock (10) are flexibly connected by Compress Spring (11); The right-hand member of described Compress Spring (11) is looped around on safety lock (10).

2. a kind of needleless injector according to claim 1, it is characterized in that: described ampoule storing unit (3) adopts the instant pottery of hard to make, structure is cylindrical, its capacity is 2ml-15ml, rubber piston is provided with, rubber piston and push rod (4) compact siro spinning technology between ampoule storing unit (3) and push rod (4).

3. a kind of needleless injector according to claim 1, it is characterized in that: described housing (12) is titanium alloy material, the core bar (13) that housing (12) is inner and piston (5) can slide at housing (12) internal freedom, this device graduated disc (8) used is electronics graduated disc (8), graduated disc (8) is embedded in housing (12) surface, is electrically connected on power supply by wire and adjustment button (14).

4. a kind of needleless injector according to claim 1, is characterized in that: the length of described core bar (13) is the 1/3-1/4 of whole device, and the cylinder of the piston of core bar (13) front end to be upper and lower surface be inner sunken face, is equipped with steel ball in its concave curved surface; Safety lock (10) is provided with the aperture of annular, in the aperture of annular, is inserted with the straight pin adapted.