CN202569076U

CN202569076U - Sleeve type injector

Info

Publication number: CN202569076U
Application number: CN 201220200186
Authority: CN
Inventors: 高红贞
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-07
Filing date: 2012-05-07
Publication date: 2012-12-05
Anticipated expiration: 2022-05-07

Abstract

The utility model belongs to the technical field of medical equipment, and in particular relates to a sleeve type injector. In order to overcome the defect that a gap is reserved between a piston rod and a needle cylinder when the injector extracts medicines in the prior art, the sleeve type injector is provided. According to the technical scheme, the sleeve type injector comprises a needle cylinder, a piston arranged in the needle cylinder and a needle head which is sleeved at the outlet end of the needle cylinder, wherein a sleeve is sleeved on the wall of the needle cylinder and can slide relatively with the needle cylinder; and one end of the sleeve is connected with a handle of the piston. By the sleeve type injector, the gap is not reserved between the piston rod and the needle cylinder when nursing personnel extract the medicines, so that the infection of the medicines is avoided.

Description

A kind of sleeve type syringe

Technical field

This utility model belongs to technical field of medical instruments, is specifically related to a kind of sleeve type syringe.

Background technology

When needing to give the patient injection medicine; The nursing staff need pull out syringe with piston rod when using syringe just can be extracted into medicine; Between operated piston bar and the syringe gap can appear like this; Dust in air and antibacterial get in the syringe through the gap between piston rod and the syringe easily, and then get into medicine, infected patient.

The utility model content

This utility model provides a kind of sleeve type syringe, when extracting medicine, can occur the problem in gap between piston rod and the syringe with the syringe that overcomes prior art.

For overcoming the deficiency that prior art exists, the technical scheme that this utility model provides is:

A kind of sleeve type syringe comprises syringe, is arranged at the piston in the syringe, is sheathed on the syringe needle of the syringe port of export, is arranged with sleeve on the said syringe barrel, can slide relatively between sleeve and the syringe, and a said telescopic end is connected with the handle of piston.

Above-mentioned sleeve is the nontoxic rubber material.

Anti-skidding stricture of vagina is carved with on above-mentioned telescopic surface.

This utility model has following advantage and effect with respect to prior art:

1. be arranged with sleeve on the syringe barrel, a telescopic end is connected with the handle of piston, when the nursing staff extracts medicine, can not have the gap between piston rod and the syringe like this;

2. sleeve is the nontoxic rubber material, makes sleeve have certain elasticity, cooperates between itself and the syringe closely and can slide;

3. anti-skidding stricture of vagina is carved with on telescopic surface, occurs the phenomenon of sliding when having avoided operation.

Description of drawings

Fig. 1 is this utility model structural representation;

Fig. 2 is this utility model internal structure sketch map;

Wherein, 1-syringe, 2-piston, 3-syringe needle, 4-sleeve.

The specific embodiment

Below in conjunction with accompanying drawing this utility model is elaborated.

With reference to Fig. 1, a kind of sleeve type syringe comprises syringe 1; Be arranged at the piston 2 in the syringe 1, be sheathed on the syringe needle 3 of syringe 1 port of export, be arranged with sleeve 4 on said syringe 1 barrel; Can slide relatively between sleeve 4 and the syringe 1, an end of said sleeve 4 is connected with the handle of piston 2.Above-mentioned sleeve 4 is the nontoxic rubber material, is preferably tight slightly cooperation between sleeve 4 and syringe 1 outer wall, so not only can slide each other but also can play the effect of sealing, and anti-skidding stricture of vagina is carved with on the surface of sleeve 4, can prevent slip during operation.

During use, a syringe part that holds syringe, another hands are put on the sleeve 4; Then syringe needle 3 is stretched in the medicine bottle, promote sleeve 4 backward, sleeve 4 drive pistons 2 move backward and extract medicine; At this moment, piston 2 leaves the part of syringe 1 just in time by sleeve 4 sealings, and dust in air and antibacterial can't get into syringe 1 inside; During injection, promote sleeve 4 forward behind the syringe needle 3 insertion blood vessels medicine is injected in patient's body.

Claims

1. sleeve type syringe; Comprise syringe (1), be arranged at piston (2) in the syringe (1) and the syringe needle (3) that is sheathed on syringe (1) port of export; It is characterized in that: be arranged with sleeve (4) on said syringe (1) barrel; Can slide relatively between sleeve (4) and the syringe (1), an end of said sleeve (4) is connected with the handle of piston (2).

2. according to the said a kind of sleeve type syringe of claim 1, it is characterized in that: said sleeve (4) is the nontoxic rubber material.

3. according to claim 1 or 2 said a kind of sleeve type syringes, it is characterized in that: anti-skidding stricture of vagina is carved with on the surface of said sleeve (4).