CN2827403Y

CN2827403Y - Non-propeller anti-pollution injector

Info

Publication number: CN2827403Y
Application number: CN 200520065727
Authority: CN
Inventors: 陈庆强
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-14
Filing date: 2005-10-14
Publication date: 2006-10-18
Anticipated expiration: 2015-10-14

Abstract

The utility model provides an anti-pollution injector without a push rod, which comprises needle cylinder, wherein a piston without a push rod is arranged in the needle cylinder, the upper part of the needle cylinder is provided with a moveable sealing sleeve tube of which the outer end is hermetically connected with a push handle, the push handle in the sealing sleeve tube is provided with a through hole which is provided with a sealing rubber plug and the lower end of the sealing sleeve tube is hermetically connected with a needle cylinder wall. The utility model has the advantages of simple structure and convenient use, prevents physic liquor from being polluted and is used for intramuscular injection and medicine deployment.

Description

No pushing rod anti-pollution injector

Technical field

This utility model relates to a kind of medical supplies, in particular for a kind of no pushing rod anti-pollution injector of intramuscular injection, medicine allocation.

Background technology

At present, the intramuscular injection device that generally uses in the hospital is made up of syringe, piston and piston rod, and medical personnel are to drive piston by the push-and-pull piston rod to move in operation, realize operations such as aspiration medicinal liquid, admixing medical solutions, injection.But find that in actual use medical personnel are when carrying out operation such as aspiration medicinal liquid, admixing medical solutions, injection, finger can touch piston rod, causes liquid medicine contamination easily.

Summary of the invention

It is a kind of simple in structure, easy to use that the purpose of this utility model is to provide, and can prevent a kind of no pushing rod anti-pollution injector of liquid medicine contamination.

The purpose of this utility model is achieved in that a kind of no pushing rod anti-pollution injector, comprise syringe, wherein: be provided with no push-rod piston in the described syringe, be provided with movably Sealed casing pipe on syringe top, the outer end and the handle of Sealed casing pipe are tightly connected, be provided with through hole on the handle in Sealed casing pipe, through hole is provided with the sealing plug; Be tightly connected between Sealed casing pipe lower end and the needle cylinder wall.

Described in the above-mentioned no pushing rod anti-pollution injector movably Sealed casing pipe can form by telescopic tube and at least one guide post, the inner of telescopic tube and the peristome of syringe are tightly connected; Guide post is arranged on the telescopic tube outside, and the one end is fixedlyed connected with handle, and another side is located in the pilot hole in the needle cylinder wall outside.

Described in the above-mentioned no pushing rod anti-pollution injector movably Sealed casing pipe can be sliding sleeve, be provided with the tubular cavity that can hold this sliding sleeve with the corresponding syringe barrel of sliding sleeve, sliding sleeve can slide along this tubular cavity; Inner close end at sliding sleeve is provided with elastic sealing ring, is provided with at least one passage in the bottom or the nearly bottom of tubular cavity.

After this utility model adopted said structure, the hydrodynamic reciprocating sealing sleeve pipe can drive no push-rod piston and move along the syringe inwall, has advantage simple in structure, easy to use; Simultaneously,, can prevent medical personnel's pollution to medicinal liquid when operating syringe effectively, guarantee drug safety by the seal cavity that Sealed casing pipe forms with no push-rod piston.

Description of drawings

Below in conjunction with the embodiment in the accompanying drawing this utility model is described in further detail, but does not constitute any restriction of the present utility model.

Fig. 1 is the structural representation of this utility model embodiment 1;

Fig. 2 is the user mode sketch map of embodiment 1;

Fig. 3 is the structural representation of this utility model embodiment 2;

Fig. 4 is the user mode sketch map of embodiment 2.

Among the figure: 1 syringe, 1A pilot hole, 2 no push-rod pistons, 3 handles, 4 through holes, 5 sealing plugs, 6 telescopic tubes, 7 guide posts, 8 sliding sleeves, 9 tubular cavities, 10 elastic sealing rings, 11 passages.

The specific embodiment

Embodiment 1

Consult shown in Fig. 1, no pushing rod anti-pollution injector of the present utility model, comprise syringe 1, in syringe 1, be provided with no push-rod piston 2, be provided with by telescopic tube 6 and two guide posts 7 on syringe 1 top and form movably Sealed casing pipe, the outer end of telescopic tube 6 and handle 3 are tightly connected, and are provided with through hole 4 on the handle 3 in telescopic tube 6, through hole 4 is provided with sealing plug 5, is convenient to the production combination of syringe; The peristome of the inner of telescopic tube 6 and syringe 1 is tightly connected; Article two, guide post 7 is separately positioned on both sides, telescopic tube 6 outside, and the one end is fixedlyed connected with handle 3, and another side is located in respectively in the pilot hole 1A in the syringe 1 wall outside.

Concrete user mode of the present utility model is consulted shown in Fig. 1, Fig. 2, identical with the common syringe using method, when handle 3 is pulled out outward, telescopic tube 6 elongation forms vacuum, and no push-rod piston 2 is moved up, thereby can aspiration medicinal liquid, when with handle 3 during toward interior extruding, telescopic tube 6 shortens and forms malleation, no push-rod piston 2 is moved down, thereby medicinal liquid can be extruded.And the medical worker because of the sealing function of telescopic tube 6, can avoid liquid medicine contamination effectively when operation.

Embodiment 2

Consult shown in Fig. 3, no pushing rod anti-pollution injector of the present utility model, comprise syringe 1, in syringe 1, be provided with no push-rod piston 2, be provided with the movably Sealed casing pipe that is made of sliding sleeve 8 on syringe 1 top, the outer end of sliding sleeve 8 and handle 3 are tightly connected, and are provided with through hole 4 on the handle 3 in sliding sleeve 8, through hole 4 is provided with sealing plug 5, is convenient to the production combination of syringe; Be provided with the tubular cavity 9 that can hold this sliding sleeve 8 with sliding sleeve 8 corresponding syringe 1 barrels, sliding sleeve 8 can slide along this tubular cavity 9; Inner close end at sliding sleeve 8 is provided with medical silica-gel elastic sealing ring 10, makes sliding sleeve 8 lower ends form the hermetic seal state with syringe 1 barrel, is provided with a passage 11 in the bottom or the nearly bottom of tubular cavity 9.

Concrete user mode of the present utility model is consulted shown in Fig. 3, Fig. 4, identical with the common syringe using method, when handle 3 is pulled out outward, sliding sleeve 8 moves up no push-rod piston 2 along the tubular cavity 9 of the syringe 1 barrel formation vacuum that moves up, thereby can aspiration medicinal liquid, when with handle 3 during toward interior extruding, sliding sleeve 8 moves down the formation malleation along the tubular cavity 9 of syringe 1 barrel, no push-rod piston 2 is moved down, thereby medicinal liquid can be extruded.And the medical worker because of the sealing function of sliding sleeve 8, can avoid liquid medicine contamination effectively when operation.

Claims

1. no pushing rod anti-pollution injector, comprise syringe (1), it is characterized in that: be provided with no push-rod piston (2) in the described syringe (1), be provided with movably Sealed casing pipe on syringe (1) top, the outer end of Sealed casing pipe and handle (3) are tightly connected, be provided with through hole (4) on the handle in Sealed casing pipe (3), through hole (4) is provided with sealing plug (5); Be tightly connected between Sealed casing pipe lower end and syringe (1) wall.

2. no pushing rod anti-pollution injector according to claim 1, it is characterized in that: described movably Sealed casing pipe is made up of telescopic tube (6) and at least one guide post (7), and the peristome of the inner of telescopic tube (6) and syringe (1) is tightly connected; Guide post (7) is arranged on telescopic tube (6) outside, and the one end is fixedlyed connected with handle (3), and another side is located in the pilot hole (1A) in syringe (1) the wall outside.

3. no pushing rod anti-pollution injector according to claim 1, it is characterized in that: described movably Sealed casing pipe is sliding sleeve (8), be provided with the tubular cavity (9) that can hold this sliding sleeve (8) with the corresponding syringe of sliding sleeve (8) (1) barrel, sliding sleeve (8) can slide along this tubular cavity (9); Inner close end at sliding sleeve (8) is provided with elastic sealing ring (10), is provided with at least one passage (11) in the bottom or the nearly bottom of tubular cavity (9).