CN205649704U - Safe syringe - Google Patents

Abstract

The utility model provides a safe syringe, a serial communication port, including syringe and outer sleeve, the syringe include the syringe needle, the overcoat barrel casing on the syringe and can be for the syringe back -and -forth movement in order to shelter from or to expose the syringe needle. The utility model discloses a safe syringe low in cost can ensure safety effectively, can use repeatedly simultaneously, the utility model discloses a can be comparatively easily through the anti -drop area when trumpet - shaped opening at safe syringe's sleeve both ends makeed the installation sleeve, after installing on the cylinder, be difficult to drop under the anti -drop area effect of the outer wall of needle tubing.

Description

A kind of safety injector

Technical field

This utility model relates to a kind of safety injector, for carrying out injection operation more safely.

Background technology

The most conventional syringe is mainly made up of syringe, piston and syringe needle and needle cap；Needle cap is used for covering syringe needle provides protection for user.But in practical operation, syringe makes to be finished and is often difficult to put into sharp instrument box in time, and often there is the unexpected hidden danger stabbed during syringe needle is also included in needle cap；It addition, be commonly encountered the situation of syringe Reusability at research work back warp, now the unexpected probability stabbed is higher.Current existing safety injector is all with locking device, it is difficult to accomplish Reusability, and this makes the use cost of sometimes syringe increase.

Summary of the invention

The purpose of this utility model is to provide and a kind of can safely, repeatably use syringe to carry out the syringe puncturing and injecting.

In order to achieve the above object, this utility model provides a kind of safety injector, it is characterised in that include syringe and outer sleeve, described syringe includes that syringe needle, described outer sleeve set on the injector and can move forward and backward relative to syringe to block or to expose syringe needle.

Preferably, described syringe also includes needle tubing, the front end of needle tubing is located at by described syringe needle, on the sidewall of needle tubing, one end of close syringe needle is provided with the slip-off preventing band of a circle projection, described outer sleeve is the cylinder of both ends open, being respectively arranged at the two ends with a slip-off preventing circle before and after its medial wall, described slip-off preventing band is located between two slip-off preventing circles and spacing by described slip-off preventing circle.

It is highly preferred that described slip-off preventing circle is toroidal.

It is highly preferred that the length of the needle tubing being shorter in length than syringe of described outer sleeve, but longer than the length of syringe needle.

Compared with prior art, the beneficial effects of the utility model are:

1, safety injector of the present utility model is cheap, can effectively ensure that safety, simultaneously can be with Reusability；

2, when the toroidal opening at the sleeve two ends of safety injector of the present utility model makes to install sleeve, sleeve can relatively easily pass through slip-off preventing band；After being installed on syringe, it is difficult to come off under the slip-off preventing band effect of the outer wall of needle tubing.

3, the length of the sleeve of safety injector of the present utility model is longer than the length of syringe needle, can shelter from syringe needle completely so that syringe needle is hidden into sleeve inner completely so that is substantially reduced from the probability of side and front accident contact needle, thus plays the effect of protection.

Accompanying drawing explanation

Fig. 1 is safety injector structural representation.

Fig. 2 a is syringe left view；

Fig. 2 b is syringe top view；

Fig. 2 c is syringe front view；

Fig. 3 a is outer sleeve left view；

Fig. 3 b is outer sleeve top view；

Fig. 3 c is outer sleeve front view；

Fig. 3 d is outer sleeve sectional view；

Fig. 4 a is syringe needle exposed state schematic diagram；

Fig. 4 b is syringe needle exposed state sectional view；

Fig. 4 c is syringe needle receiving state schematic diagram；

Fig. 4 d is syringe needle receiving state sectional view.

Detailed description of the invention

Below in conjunction with specific embodiment, this utility model is expanded on further.Should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model.In addition, it is to be understood that after having read the content that this utility model is lectured, this utility model can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application appended claims limited range equally.

Embodiment

As it is shown in figure 1, be safety injector structural representation, described safety injector includes syringe 1 and outer sleeve 2, the length of the needle tubing 12 being shorter in length than syringe 1 of described outer sleeve 2, but longer than the length of syringe needle 11.As shown in figs. 2 a-2 c, described syringe 1 profile is similar to common disposable syringe, material is all transparent plastic material mutually with disposable syringe, it includes syringe needle 11 and needle tubing 12, the front end of needle tubing 12 is located at by described syringe needle 11, it is cased with needle cap outside syringe needle 11, on the sidewall of needle tubing 12, one end of close syringe needle 11 is provided with the slip-off preventing band 13 of a circle projection, as illustrated in figs. 3 a-3d, described outer sleeve 2 is the cylinder of both ends open, being respectively arranged at the two ends with a slip-off preventing circle 21 before and after its medial wall, described slip-off preventing circle 21 is toroidal.Described slip-off preventing band 13 is located between two slip-off preventing circles 21 and spacing by described slip-off preventing circle 21.Described outer sleeve 2 is enclosed within syringe 1 and can be movable relative to syringe 1 to block or to expose syringe needle 11.The material of outer sleeve 2 is identical with the material of syringe 1, is all transparent plastic material,

As a example by the lumbar injection of rat, choose the safety injector of 5ml, use step as follows:

Before 1, the needle cap outside syringe needle 11 is taken off, outer sleeve 2 is set to needle tubing 12 from the needle end of syringe 1；

2, as shown in Figs. 4a and 4b, outer sleeve 2, outer sleeve 2 will be promoted to be moved rearwards by relative to syringe 1 along needle tubing 12, and expose syringe needle 11 and operate, absorption medicine, to required dosage, carries out lumbar injection operation；

3, as shown in Fig. 4 c and 4d, when injection operation completes, promotion outer sleeve 2 is moved forward relative to syringe 1 and shelters from syringe needle 11.Operate as this pin need to be continuing with, then repeat step 2-3.

Claims (3)

1. a safety injector, it is characterized in that, including syringe (1) and outer sleeve (2), described syringe (1) includes that syringe needle (11), described outer sleeve (2) are enclosed within syringe (1) and above and can move forward and backward to block or to expose syringe needle (11) relative to syringe (1)；Described syringe (1) also includes needle tubing (12), the front end of needle tubing (12) is located at by described syringe needle (11), on the sidewall of needle tubing (12), one end of close syringe needle (11) is provided with the slip-off preventing band (13) of a circle projection, described outer sleeve (2) is the cylinder of both ends open, being respectively arranged at the two ends with a slip-off preventing circle (21) before and after its medial wall, described slip-off preventing band (13) is located between two slip-off preventing circles (21) and spacing by described slip-off preventing circle (21).

2. safety injector as claimed in claim 1, it is characterised in that described slip-off preventing circle (21) is toroidal.

3. safety injector as claimed in claim 1, it is characterised in that the length of the needle tubing (12) being shorter in length than syringe (1) of described outer sleeve (2), but longer than the length of syringe needle (11).