CN203329138U - Rotation type safety syringe needle - Google Patents

Abstract

The utility model belongs to the technical field of medical instruments, and relates to a rotation type safety syringe needle, in particular to a rotation type safety syringe needle which can be prevented from pricking the hands through screw-thread fit. The rotation type safety syringe needle comprises a needle base, a syringe needle body and a needle sleeve. The needle base is composed of a bottom and a fixed portion. The outer side of the bottom is of a regular polygon, the outer side of the fixed portion is of a circle, four bosses are arranged at the front end of the bottom, and the syringe needle body is arranged at the front end of the fixed portion. The fixed portion is further provided with first threads, and the needle sleeve and the needle base are fixed through second threads matched with the first threads so as to protect the syringe needle body. The rotation type safety syringe needle solves problems in the prior art when used, the needle sleeve will not roll randomly, a user does not need to spend time looking for the needle sleeve, and therefore convenience is brought to operation.

Description

The rotary safe syringe needle

Technical field

This utility model relates to a kind of rotary safe syringe needle, is specifically related to a kind ofly by threaded engagement, prevent difficult to handle rotary safe syringe needle, belongs to the genus technical field of medical instruments.

Background technology

In use there are the following problems (being mainly the chimeric of needle guard and syringe needle) for the disposable syringe used at present: the needle guard used at present now and the chimeric formula that buckles into of syringe needle, in the life-time service process, find, this chimeric mode is difficult for making needle guard to separate with syringe needle sometimes, to use, makes troubles; If firmly excessive, can cause the damage to user skin, increased medical worker's infection chance, both do not met aseptic requirement, cause again waste.

Summary of the invention

The purpose of this utility model is to provide and a kind ofly by threaded engagement, prevents difficult to handle rotary safe syringe needle, and it uses safety and is easy to put.

The technical scheme provided according to this utility model, the rotary safe syringe needle, comprise needle stand, syringe needle and needle guard; Needle stand consists of bottom and fixed part; Bottom outside is regular polygon, and the fixed part outside is circular, and front end is provided with four boss, and the fixed part front end is provided with syringe needle; Also be provided with the first screw thread on described fixed part;

Needle guard fixes by the second screw thread and the needle stand be complementary with the first screw thread, to play the effect of protection syringe needle.The regular polygon that described bottom outside presents is that the limit number is the 4-8 bar.

The utlity model has following advantage: this utility model is changed into needle guard and syringe needle chimeric rotary by the formula of buckling into, chimeric as screw and cap nut, again needle guard is designed to polygon all over the body, problems of the prior art had so in use both been solved, can make again needle guard can arbitrarily not roll, without the searching of taking time, it is convenient to operation, to bring.

The accompanying drawing explanation

Fig. 1 this utility model structural representation.

Fig. 2 this utility model structure left view.

The specific embodiment

As shown in Figure 1, the rotary safe syringe needle, comprise needle stand 1, syringe needle 5 and needle guard 6; Needle stand 1 consists of bottom 2 and fixed part 3; 2 outsides, bottom are regular polygon, and fixed part 3 is circular, and front end is provided with four boss 4, and fixed part 3 front ends are provided with syringe needle 5; Also be provided with the first screw thread 7-1 on described fixed part 3;

Needle guard 6 fixes by the second screw thread 7-2 and the needle stand 1 be complementary with the first screw thread 7-1, to play the effect of protection syringe needle 5.

The regular polygon that 2 outsides, described bottom present is that the limit number is the 4-8 bar.

Pass through the first screw thread 7-1 and the second screw thread 7-2 fixedly needle stand 1 and needle guard 6 when this utility model is used, by the mode screwed, both are connected, just can not accidentally injure hands because of syringe needle 5 like this when taking off needle guard 6.

As shown in Figure 2, bottom 2 is designed to regular hexagon, and polygon can make the rotary safe syringe needle be placed on operating board easily, and can be not random roll on operating board causes operate miss or inconvenience.

Bottom 2 shape can be any shape changeable, but the limit number is no more than 8 for well.

This utility model is simple in structure, and the change that existing product is made among a small circle can provide larger convenience to user, is easy to suitability for industrialized production.

Claims (2)

1. the rotary safe syringe needle, is characterized in that: comprise needle stand (1), syringe needle (5) and needle guard (6); Needle stand (1) consists of bottom (2) and fixed part (3); The outside, bottom (2) is regular polygon, and fixed part (3) is circular, and front end is provided with four boss (4), and fixed part (3) front end is provided with syringe needle (5); Also be provided with the first screw thread (7-1) on described fixed part (3);

Needle guard (6) fixes with needle stand (1) by the second screw thread (7-2) be complementary with the first screw thread (7-1), to play the effect of protection syringe needle (5).

2. rotary safe syringe needle as claimed in claim 1, it is characterized in that: the regular polygon limit number that described bottom (2) outside presents is the 4-8 bar.

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