CN2719324Y

CN2719324Y - Throw-away syringe cylinder structure

Info

Publication number: CN2719324Y
Application number: CN 200420050428
Authority: CN
Inventors: 洪境潍
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-27
Filing date: 2004-04-27
Publication date: 2005-08-24
Anticipated expiration: 2014-04-27

Abstract

The utility model provides a throw-away syringe cylinder structure, which relates to the field of a disposable syringe structure technology, in particular to a throw-away syringe cylinder structure after used. The utility model comprises a syringe, a push rod and a safe syringe needle sleeve. A baffle ring is sheathed at the opening of the back end of the syringe. Two and more than two fins which convexly extend to the wall of the syringe are arranged nearby the back end of the push rod. When the push rod is pushed ahead in the syringe while fastening parts on the fins pass through the baffle ring, the fastening parts of the fins are just fastened to the baffle ring. By now, the push rod can not be drew out rearward again. A gap which is bigger than a semicircumference is arranged on the rear end of the safe syringe needle sleeve. A V-shaped groove is arranged on the front end of the safe syringe needle sleeve nearby the gap. A plane is arranged at the bottom of the safe syringe needle sleeve, which is convenient to enable the safe syringe needle sleeve to naturally smoothly place. Owing to the utility model has the advantages of simple structure and easy operation, the throw-away syringe cylinder structure can effectively prevent the syringe from recycling and raise the quality and the using safety of medical articles.

Description

A kind of throw-away syringe cylinder structure

Technical field

This utility model relates to the structure of deserted syringe, refers to a kind of syringe that must abandon after use especially, causes the infection of pathogenic bacteria to prevent syringe from reusing, and improves the quality of medical supplies and the safety of use.

Background technology

Hospital is the infection that prevents infectious disease at present, mostly use the recovery of deserted syringe and reinforcement syringe and syringe needle, but still be difficult to avoid the repeated use of syringe, and when taking off and load onto syringe needle, also be difficult to avoid medical personnel to be stung by the syringe needle of syringe.

Summary of the invention

The purpose of this utility model provides a kind of throw-away syringe cylinder structure, uses syringe later not reuse again, effectively prevents mutual germina infection and the quality of raising medical supplies and the safety of use by the injector to reach.

The technical solution of the utility model is as follows: this utility model comprises syringe, push rod and safty pin headgear, syringe is a hollow cylinder, but its front end winding one syringe needle, open rearward end is in order to insert a push rod, be with a baffle ring at the back end of syringe opening part, the push rod front end is the blackhead that an elastomer is made, in order to increase the refluence of combining closely and preventing the syringe inner liquid medicine of syringe inwall and push rod front end, be provided with the fin more than two or two that protrudes out to needle cylinder wall near the putting back-end place, when push rod in syringe, advance forward and card division on the fin by behind the baffle ring, medicinal liquid in the syringe is all released, and the card division of putting back-end fin is blocked baffle ring just, at this moment, push rod can't be extracted more backward, and promptly syringe can't be done to use for the second time; The rear end of safty pin headgear has a breach greater than semi-circumference, the front end of safty pin headgear is provided with the V-type groove near indentation, there, slip into the interior usefulness of safty pin headgear for syringe needle, and the pin medicated cap fixes in the periphery on the breach both sides above the safety needle cover just, safty pin headgear bottom is a plane, so that the safty pin headgear can be placed naturally reposefully, and can not roll, and being convenient to user can singlehanded be pressed into syringe needle in the safty pin headgear, and can be by needle sting.

This utility model can prevent the repeated use of syringe effectively owing to simple in structure, easy to operate, improves the quality of medical supplies and the safety of use.

Description of drawings

Fig. 1 push rod pushes the sketch map of syringe;

The sketch map of baffle ring is blocked in the card division of Fig. 2 fin;

Another push rod of Fig. 3 pushes the sketch map of syringe;

The barb of Fig. 4 fin blocks the sketch map of baffle ring;

Fig. 5 syringe needle and pin medicated cap are pressed into the sketch map in the safty pin headgear;

Fig. 6 syringe needle and pin medicated cap are pressed into the sketch map of safty pin headgear position decided at the higher level but not officially announced;

The A of Fig. 7 safty pin headgear is to sketch map.

The specific embodiment

This utility model comprises syringe 1, push rod 2 and safty pin headgear 3.

Among Fig. 1, Fig. 2, syringe 1 is a hollow cylinder, but its front end winding one syringe needle 4, open rearward end is in order to insert a push rod 2, and 1 open rearward end place is with a baffle ring 11 at syringe.Push rod 2 front ends are blackheads 21 that an elastomer is made, in order to increase the refluence of combining closely and preventing syringe 1 inner liquid medicine of syringe 1 inwall and push rod 2 front ends.Be provided with the fin more than two or two 22 that protrudes out to needle cylinder wall near push rod 2 rear end, when push rod 2 in syringe 1, advance forward and card division 23 on the fin 22 by behind the baffle ring 11, medicinal liquid in the syringe 1 is all released, and the card division 23 of push rod 2 rear end fins 22 is blocked baffle ring just, at this moment, push rod 2 can't be extracted more backward, and promptly syringe 1 can't be done to use for the second time.

Among Fig. 3, Fig. 4, when this utility model is implemented, the fin 221 that can also have barb 231 on affixed on push rod 2 ends 24, when push rod 2 in syringe 1, advance forward and the barb 231 of fin 221 front ends by behind the baffle ring 11, barb 231 blocks baffle ring 11 just, push rod 2 just can not be extracted backward again, also can make syringe 1 can't do to use for the second time.

Among Fig. 3, Fig. 4, Fig. 5, the rear end of safty pin headgear 3 has a breach 32 greater than semi-circumference, the front end of safty pin headgear 3 is provided with V-type groove 31 near breach 32 places, slip into the interior usefulness of safty pin headgear 3 for syringe needle 4, and pin medicated cap 41 fixes in the periphery 33 on breach 32 both sides above safty pin headgear 3 just, safty pin headgear 3 bottoms are planes 34, so that making safty pin headgear 3 can place naturally reposefully, and can not roll, and being convenient to user can singlehanded be pressed into syringe needle 4 in the safty pin headgear 3, and can not stabbed by syringe needle 4.

Claims

1, a kind of throw-away syringe cylinder structure comprises syringe (1), push rod (2) and safty pin headgear (3), syringe (1) is a hollow cylinder, but its front end winding one syringe needle (4), open rearward end is in order to insert a push rod (2), the open rearward end place is with a baffle ring (11) at syringe (1), push rod (2) front end is the blackhead (21) that an elastomer is made, and it is characterized in that: be provided with the fin more than two or two (22) that protrudes out to needle cylinder wall near push rod (2) rear end.

2, a kind of throw-away syringe cylinder structure according to claim 1 is characterized in that: go up the affixed fin (221) that has barb (231) at push rod (2) terminal (24).

3, a kind of throw-away syringe cylinder structure according to claim 1 is characterized in that: the rear end of safty pin headgear (3) has a breach greater than semi-circumference (32), and the front end of safty pin headgear (3) locates to be provided with V-type groove (31) near breach (32).

4, a kind of throw-away syringe cylinder structure according to claim 1 is characterized in that: safty pin headgear (3) bottom is a plane (34).