CN201969135U

CN201969135U - Novel safety syringe

Info

Publication number: CN201969135U
Application number: CN2011200551294U
Authority: CN
Inventors: 韩俊霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-04
Filing date: 2011-03-04
Publication date: 2011-09-14
Anticipated expiration: 2021-03-04

Abstract

The utility model discloses a novel safety syringe and relates to medical syringe. The novel safety syringe comprises a needle cylinder, a movable push rod arranged in an inner cavity of the needle cylinder, and a needle head arranged at the upper end of the needle cylinder, wherein the push rod comprises a core rod and a grab handle fixed at the lower end of the core rod; a baffle block is fixedly arranged at the upper end of the core rod; a piston tightly wraps the upper end of the baffle block; a needle head fixing tube communicated with the inner cavity of the needle cylinder is arranged at the upper end of the needle cylinder; a bulge on the outer side wall at the lower end of the needle head fixing tube is provided with a threaded connection piece; the needle head is movably connected with the upper end of the needle head fixing tube; the needle head fixing tube is movably connected with a needle cap completely holding the needle head; and the lower end of the needle cap is movably connected with the threaded connection piece on the needle head fixing tube by screw threads. The needle cap of the syringe is fixedly screwed at and connected with the upper end of the needle cylinder by screw threads, so that the needle cap is difficult to fall off from the needle cylinder to expose the needle head, thereby preventing the needle head of the syringe from puncturing a worker and being beneficial for protection of personal safety of the worker.

Description

A kind of new type of safe syringe

Technical field

This utility model relates to a kind of medical syringe, relates in particular to a kind of new type of safe syringe.

Background technology

Disposable syringe of the prior art generally comprises syringe needle, push rod, syringe and pin medicated cap, and the pin medicated cap is that the mode of employing and syringe clearance fit covers syringe needle fully mostly.Because pin medicated cap and syringe are to lean on the tight fashion of extrusion of coupling part to fix with each other, after syringe uses, after living syringe needle with the pin cap, often the pin medicated cap comes off from syringe easily, thereby make syringe needle be exposed to the syringe outside, contaminated pinhead after the injection is stabbed the staff easily like this, even transmitted virus causes viral infection to staff's body.

The utility model content

The purpose of this utility model is that the pin medicated cap that overcomes existing syringe breaks away from the defective that syringe makes that syringe needle is exposed easily, a kind of simple in structure, safe and practical syringe is provided, avoid contaminated needle sting staff, thereby improved the safety of syringe.

The purpose of this utility model is achieved through the following technical solutions:

A kind of new type of safe syringe, comprise syringe, be arranged at movable push bar and the syringe needle of being located at the syringe upper end in the syringe inner chamber, push rod comprises core bar and is fixed in the lever of core bar lower end, the core bar upper end is fixed with block, block upper end closely parcel is provided with piston, the syringe upper end is provided with the syringe needle stationary pipes that is communicated with the syringe inner chamber, lateral wall, syringe needle stationary pipes lower end projection is provided with threaded connector, syringe needle stationary pipes upper end flexibly connects syringe needle, be connected with the pin medicated cap that holds syringe needle fully on the syringe needle stationary pipes, the threaded connector screw thread on pin medicated cap lower end and the syringe needle stationary pipes flexibly connects.

In order to realize this utility model better, described core bar mainly is made of tubular roofbolt and more than one gripper shoe, and gripper shoe is fixed on the lateral wall of roofbolt.

As preferably, the quantity of described gripper shoe is six, and on the lateral wall that is fixed at roofbolt evenly spaced apart.

This utility model is compared than prior art, has the following advantages and beneficial effect:

(1) the syringe needle stationary pipes on the syringe of the present utility model is provided with threaded connector, and the threaded connector of pin medicated cap lower end and syringe needle stationary pipes removably connects by screw thread.After using syringe, the pin cap thread is tightened in the syringe upper end, this hour hands medicated cap just is not easy to come off from syringe, thereby has avoided syringe needle to stab staff's situation, helps protecting staff's personal safety.

(2) be fixedly connected with six roots of sensation gripper shoe on the roofbolt of the present utility model, two have been increased than conventional syringe, make pusher structure more firm, solved the easy flexural deformation of conventional syringe push rod, even situation about fractureing, simultaneously six roots of sensation gripper shoe is Magen David and arranges and saved manufactured materials, and is not only attractive in appearance but also reduced production cost.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a local enlarged diagram of the present utility model;

Fig. 3 be among Fig. 1 A-A to generalized section.

Wherein, the pairing name of the Reference numeral in the accompanying drawing is called:

The 1-syringe, 2-push rod, 3-syringe needle, 4-syringe needle stationary pipes, 5-pin medicated cap, 6-core bar, 7-lever, 41-threaded connector, 61-block, 62-piston, 63-roofbolt, 64-gripper shoe.

The specific embodiment

Below in conjunction with embodiment this utility model is described in further detail, but embodiment of the present utility model is not limited thereto.

Embodiment

As Fig. 1～shown in Figure 3, a kind of new type of safe syringe, comprise syringe 1, be arranged at movable push bar 2 and the syringe needle 3 of being located at syringe 1 upper end in syringe 1 inner chamber, push rod 2 comprises core bar 6 and is fixed in the lever 7 of core bar 6 lower ends, core bar 6 upper ends are fixed with block 61, block 61 upper ends closely parcel are provided with piston 62, syringe 1 upper end is provided with the syringe needle stationary pipes 4 that is communicated with syringe 1 inner chamber, lateral wall, syringe needle stationary pipes 4 lower end projection is provided with threaded connector 41, syringe needle stationary pipes 4 upper ends flexibly connect syringe needle 3, and syringe needle 3 is that the gap closely cooperates with the connected mode of syringe needle stationary pipes 4.Be connected with the pin medicated cap 5 that holds syringe needle 3 fully on syringe needle stationary pipes 4, threaded connector 41 screw threads on pin medicated cap 5 lower ends and the syringe needle stationary pipes 4 flexibly connect.The lateral wall of the threaded connector 41 in the present embodiment is provided with external screw thread, and pin medicated cap 5 lower ends are provided with the female thread that the external screw thread with threaded connector 41 is complementary.

In order to implement present embodiment better, described core bar 6 mainly is made of tubular roofbolt 63 and more than one gripper shoe 64, and gripper shoe 64 is fixed on the lateral wall of roofbolt 63.

As shown in Figure 3, the quantity of described gripper shoe 64 is six, and on the lateral wall that is fixed at roofbolt 63 evenly spaced apart, six gripper shoes 64 are arranged in the Magen David shape, and are both beautiful and practical.

In sum, just can realize this utility model preferably.

Claims

1. new type of safe syringe, comprise syringe (1), be arranged at the movable push bar (2) in syringe (1) inner chamber and be located at the syringe needle (3) of syringe (1) upper end, it is characterized in that: push rod (2) comprises core bar (6) and is fixed in the lever (7) of core bar (6) lower end, core bar (6) upper end is fixed with block (61), block (61) upper end closely parcel is provided with piston (62), syringe (1) upper end is provided with the syringe needle stationary pipes (4) that is communicated with syringe (1) inner chamber, syringe needle stationary pipes (4) lateral wall, lower end projection is provided with threaded connector (41), syringe needle stationary pipes (4) upper end flexibly connects syringe needle (3), be connected with the pin medicated cap (5) that holds syringe needle (3) fully on syringe needle stationary pipes (4), threaded connector (41) screw thread on pin medicated cap (5) lower end and the syringe needle stationary pipes (4) flexibly connects.

2. according to the described a kind of new type of safe syringe of claim 1, it is characterized in that: described core bar (6) mainly is made of tubular roofbolt (63) and more than one gripper shoe (64), and gripper shoe (64) is fixed on the lateral wall of roofbolt (63).

3. according to the described a kind of new type of safe syringe of claim 2, it is characterized in that: the quantity of described gripper shoe (64) is six, and on the lateral wall that is fixed at roofbolt (63) evenly spaced apart.