CN2131525Y

CN2131525Y - Multi-function disposal injector

Info

Publication number: CN2131525Y
Application number: CN 92229216
Authority: CN
Inventors: 陈贤贵
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-24
Filing date: 1992-07-24
Publication date: 1993-05-05
Anticipated expiration: 2002-07-24

Abstract

The utility model relates to a multi-function disposal injector which is composed of an injector tube, a pull rod, a piston, a fingerboard, etc. An injector tube cap is sheathed on the head of the injector tube, and the injector tube cap and the head of the injector tube are connected by screws. The head and the tail of the injector tube are respectively bigger and smaller than other parts of the injector tube, and the movable and detachable fingerboard is sheathed on the tail of the injector tube. The internal and the external surfaces of the tail end of the injector tube are provided with annular protrusions respectively. The utility model has the advantages of easily visible blood return, accurate operation, safety, sanitation, and high work efficiency. When the injector tube cap and the fingerboard are removed, the injector tube has the function of a test tube which is used for check operations, the utility model is dual-purpose, the operating procedure is simplified, and the pollution of the blood is prevented.

Description

Multi-function disposal injector

This utility model relates to a kind of multifunctional disposable syringe, belongs to medical apparatus and instruments.

Existing disposable syringe in making the process of venipuncture, when syringe needle thrusts vein, be can not see blood back sometimes, this be since block between the inwall of syringe and the piston tension, venous blood pressure is lower, is difficult to arrive in the syringe.Thereby be difficult to correctly judge whether syringe needle has thrust intravenous, extracting blood or doing intravenous injection when operation inconvenience to some extent, sometimes even can cause the failure of injecting or drawing blood.

In addition, existing various syringes when extraction blood is done various check, send relevant department's check in the teat glass that the blood in the suction syringe need be reinjected.Adopt this syringe and operational approach, not only loaded down with trivial details, medical worker's hands is sometimes by blood contamination, and teat glass transports in operation and easily broken in the process or turn upside down, and is not only unhygienic but also dangerous.

The purpose of this utility model is at above-mentioned the deficiencies in the prior art part, a kind of blood back of easily seeing in venipuncture is provided, when extraction blood is done check, but syringe double as test tube, need not again a kind of easy and simple to handle with the blood injecting tube in the syringe, the multifunctional disposable syringe of safety and health.

The purpose of this utility model reaches like this: existing disposable syringe is improved, and the syringe medicated cap with syringe conehead and syringe top are integrated and make detached type is enclosed within the syringe head, between adopt helical structure to connect.The internal diameter of the head of syringe is slightly larger than other parts of syringe, and to reduce the frictional force of piston when the syringe head moves, the internal diameter of the afterbody of syringe is slightly less than other parts of syringe, so that piston gets tighter at syringe afterbody and syringe inwall card.The fingerboard of syringe afterbody is a dismountable type, is respectively equipped with annular projection on the inside and outside surface of syringe tail end, is used for stoping piston and fingerboard to deviate from from the syringe tail end respectively.Owing to adopted the syringe cap, also entry needle directly can be fixed in the endoporus of syringe conehead the cancellation needle holder.

Accompanying drawing 1-3 is one of this utility model most preferred embodiment.

Accompanying drawing 1 is this utility model structural representation.

Accompanying drawing 2 is structural representations that this utility model is done the test tube time spent.

Accompanying drawing 3 is this utility model fingerboard structural representations.

Among the accompanying drawing 1-3:

The 1--fingerboard, 2--syringe tail end, 3--syringe, 4--syringe head, 5--syringe conehead, 6--syringe medicated cap, 7--spiral, 8--push-pull bar, 9--piston, the outer balk ring of 10--, balk ring in the 11--, 12--annular groove, 13--syringe needle.

Below in conjunction with accompanying drawing this utility model is further described.

Syringe conehead 5 is arranged on the syringe medicated cap 6, and syringe medicated cap 6 is tightened on the syringe head 4, between adopt spiral to connect, in case of necessity, can unload syringe medicated cap 6 from syringe head 4 rapidly.The internal diameter of about 1 centimeters of syringe head 4 is slightly larger than other parts of syringe 3, and its size can make piston slide easily in this section, and the pressure of blood got final product greater than the friction of piston 9 with syringe 3 inwalls when syringe needle thrust vein.The internal diameter of syringe afterbody 1 centimeters be slightly less than syringe 3 other partly, with syringe 3 chuckings, be convenient to push-pull bar 8 and piston 9 are broken away from, and prevent the downward seepage of blood, when making piston 9 arrive afterbodys with formation test tube (seeing accompanying drawing 2).Fingerboard 1 is movable detached type, and the centre is a hollow circle, and its radius greater than syringe 3 outer radius sizes, is sleeved on the syringe afterbody slightly, and when syringe 3 was used as test tube, fingerboard 1 can unload from syringe head 4 directions.Two annular projections are arranged, promptly outer balk ring 10 and interior balk ring 11 respectively on the inside and outside wall of syringe tail end 2.Outer balk ring 10 is to be used for stoping fingerboard 1 to deviate from from syringe tail end 2, and interior balk ring 11 is to be used for stoping piston 9 to deviate from from syringe tail end 2 places, is convenient to separate with push-pull bar 8.Can open an annular groove 12 on the fingerboard 1, fingerboard 1 is embedded in the outer balk ring 10.Syringe needle 13 directly is fixed in the hole of syringe conehead 5, saves needle holder.

This utility model is being used start, intravenous injection, muscle, subcutaneous, when intradermal injection and diagnostic puncture, the same ordinary syringe of its operational approach, its operation is as follows when doing every check as taking a blood sample: syringe needle is thrust moving, after vein extracts blood, extract syringe, piston 9 is pulled to syringe tail end 2 to be contacted with interior balk ring 11, continue firmly push-pull bar 8 is become drift angle pulling backward and with syringe, just it separates with piston 9 that (because piston 9 is by the groove internal fixation that is stuck in push-pull bar 8 heads, and piston 9 is generally made with silicone rubber, certain elasticity is arranged, and this point is easy to accomplish).Unload bottom cylinder medicated cap 6 and fingerboard 1 from syringe head 4 again, so syringe 3 just becomes a test tube.Just can be for inspection purpose on the common test tube rack as long as put it to, and in the teat glass that will blood do not reinject.

This utility model is compared with existing disposable syringe, operation accurately when having the blood sample of taking, see blood back easily, after removing syringe medicated cap and movable fingerboard, syringe also has the function of the checked operation done with test tube, and it is dual-purpose to play product, simplified operating process, prevented blood contamination, safety, health have improved work efficiency.

This utility model is except that piston adopts the silicone rubber elastomeric material, and other parts (except the syringe needle) can adopt plastics or glass material to make.But with plastics for well, the available plastic sheath protection in entry needle outside.

Claims

1, a kind of syringe (3) that comprises, push-pull bar (8), the multifunctional disposable syringe of piston (9), syringe conehead (5) and fingerboard (1) is characterized in that:

Be with syringe medicated cap (6) on A, the syringe head (4), connect with spiral (9) between them.Syringe conehead (5) on syringe medicated cap (6),

The internal diameter of B, syringe head (4) is slightly larger than other parts of syringe (3), and the internal diameter of syringe afterbody is slightly less than other parts of syringe (3),

C, described fingerboard (1) are movable fingerboard, and the centre is an open circles structure, are sleeved on syringe (3) afterbody,

D, on the inside and outside surface of syringe tail end (2), be respectively equipped with annular projection, that is: interior balk ring (11) and outer balk ring (10).

2, multifunctional disposable syringe according to claim 1 is characterized in that: annular groove (12) is arranged on the described fingerboard (1).

3, ask 1 described multifunctional disposable syringe according to right, it is characterized in that: syringe needle (13) directly is fixed in the hole of syringe conehead (5).