CN210433808U

CN210433808U - Novel infection-preventing syringe

Info

Publication number: CN210433808U
Application number: CN201920920960.8U
Authority: CN
Inventors: 孙建玲; 王红; 王萍
Original assignee: Affiliated Hospital of University of Qingdao
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-05-01
Anticipated expiration: 2029-06-18

Abstract

The utility model belongs to the technical field of the injection articles for use and specifically relates to a novel infection-preventing syringe, including syringe, syringe seat, syringe needle, needle cap, piston, sleeve, the fixed intercommunication in syringe seat lower extreme has the syringe seat, and the fixed intercommunication in syringe seat lower extreme has the syringe needle, and the overhead cover of syringe has the needle cap, and the activity is pegged graft in the syringe has the piston, and the top surface center fixedly connected with push-and-pull rod of department of piston, the upper end movable sleeve of syringe has the sleeve, and the upper end bilateral symmetry of syringe is fixed with the spacing post, and movable sleeve has spacing handle on the spacing post. The utility model has the advantages of reasonable design, hand the piston rod when can avoiding bad operation through setting up sleeve structure, prevent to cause cross infection, can pull back the push-and-pull handle after the sleeve is fixed and realize the one-hand imbibition, can realize the one-hand injection liquid medicine with sleeve and push-and-pull handle forward together after the sleeve is relieved and is locked, easy operation is convenient, is worth using widely.

Description

Novel infection-preventing syringe

Technical Field

The utility model belongs to the technical field of injection articles for use and specifically relates to a novel infection-preventing injector.

Background

At present, medical injector's major structure is mostly the injection tube, a piston, the piston rod, the syringe needle is constituteed, when sucking the liquid medicine, generally need handheld injection tube, in one hand back-pull piston rod inhales the liquid medicine in the injection tube, can not the one-hand operation, it is very inconvenient, and when pulling out the piston rod in the injection tube, medical personnel operate the unnormally, the piston rod can be held to the hand, cause the piston rod to pollute, when the piston rod pushes away people's cylinder, bacterium or granule on the piston rod can be infected with on the cylinder inner wall, when subsequent suction liquid medicine, bacterium and granule on the cylinder inner wall can pollute the liquid medicine, easily lead to cross infection.

In summary, the technical problem to be solved by the technical solution is:

1. the prior common syringe can not be operated by one hand to suck liquid;

2. the piston rod of the prior syringe is easy to be polluted when being pulled out, thereby causing the technical problem of cross infection.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the technical defects and providing a novel infection-preventing injector. The piston rod can be prevented from being held by hand during bad operation by arranging the sleeve structure, cross infection is prevented from being caused, the push-pull handle can be pulled backwards after the sleeve is fixed to achieve one-hand liquid suction, the sleeve and the push-pull handle can be pushed forwards together to achieve one-hand liquid injection after the sleeve is unlocked, and the operation is simple and convenient.

The utility model provides a technical scheme that technical problem adopted does: a novel infection-preventing injector, which comprises an injection needle cylinder, an injection needle seat, an injection needle head, a needle cap, a piston and a sleeve, the lower end of the injection needle cylinder is fixedly communicated with an injection needle seat, the lower end of the injection needle seat is fixedly communicated with an injection needle head, a needle cap is sleeved on the injection needle head, a piston is movably inserted in the injection needle cylinder, the center of the top surface of the piston is fixedly connected with a push-pull rod, the upper end of the push-pull rod is fixedly connected with a push-pull handle vertical to the push-pull rod, the injection needle comprises a syringe body, a sleeve, two sliding grooves, a limiting groove, a push-pull handle, a limiting column, a limiting handle and a limiting groove, wherein the sleeve is movably sleeved at the upper end of the syringe body, the two sliding grooves are symmetrically arranged on the two sides of the sleeve, the limiting groove is symmetrically arranged on the two sides of the lower end of the sliding groove, the two ends of the push-pull handle are inserted into the sliding grooves in a sliding mode, the limiting column is symmetrically fixed on the two sides of the upper end of the syringe body, the limiting column is movably sleeved with the limiting.

The lower sides of the push-pull handle and the limiting handle are both provided with inwards concave finger-pressing grooves.

The length of the limiting handle is twice as long as that of the limiting column.

The utility model discloses the beneficial effect who has is: the utility model has the advantages of reasonable design, hand the piston rod when can avoiding bad operation through setting up sleeve structure, prevent to cause cross infection, can pull back the push-and-pull handle after the sleeve is fixed and realize the one-hand imbibition, can realize the one-hand injection liquid medicine with sleeve and push-and-pull handle forward together after the sleeve is relieved and is locked, easy operation is convenient, is worth using widely.

Drawings

Fig. 1 is a schematic sectional structure diagram of the present invention.

Fig. 2 is a schematic view of the sleeve structure of the present invention.

Detailed Description

The present invention will be described in detail below with reference to fig. 1 to 2.

As shown in fig. 1-2, the utility model comprises an injection syringe 1, an injection needle seat 2, an injection needle 3, a needle cap 4, a piston 5 and a sleeve 8, wherein the lower end of the injection syringe 1 is fixedly communicated with the injection needle seat 2, the lower end of the injection needle seat 2 is fixedly communicated with the injection needle 3, the needle cap 4 is sleeved on the injection needle 3, the needle cap 4 can prevent the injection needle 3 from stabbing hands of medical personnel when idle, the piston 5 is movably inserted in the injection syringe 1, a push-pull rod 6 is fixedly connected at the center of the top surface of the piston 5, a push-pull handle 7 vertical to the push-pull rod 6 is fixedly connected at the upper end of the push-pull rod 6, the sleeve 8 is movably sleeved at the upper end of the injection syringe 1, two sliding grooves 9 are symmetrically arranged at two sides of the sleeve 8, two limiting grooves 12 are symmetrically arranged at two sides of the lower end of the sliding grooves 9, two ends of, the push-pull rod 6 can be prevented from being held by an improper hand to pollute liquid medicine and cause cross infection, the limiting columns 11 are symmetrically fixed on two sides of the upper end of the injection needle cylinder 1, the limiting columns 11 are movably sleeved with the limiting handles 10, and the thickness of the limiting handles 10, the thickness of the push-pull handle 7, the width of the sliding groove 9 and the width of the limiting groove 12 are equal in size. When the limiting handle 10 is inserted in the sliding groove 9 in parallel, the limiting handle 10 can slide freely, the sleeve 8 can move up and down, the limiting handle 10 is lifted up from the limiting column 11, the lower end of the limiting handle 10 is separated from the sliding groove 9, then the limiting handle 10 is rotated by 90 degrees, then the limiting handle 10 is pressed and clamped into the limiting groove 12, the sleeve 8 is locked and cannot slide outside the injection needle cylinder 1, when the sleeve 8 is locked, the palm abuts against the rear end of the sleeve 8, two fingers pull the push-pull handle 7 backwards, the push-pull handle 7 backwards in the sliding groove 9 can enable the piston 5 to move backwards in the injection needle cylinder 1 so as to absorb liquid with one hand, after the limiting handle 10 is lifted up and rotated and then inserted in the sliding groove 9 in parallel, the locking of the sleeve 8 can be released, the sleeve 8 can move outside the injection needle cylinder 1, the limiting handle 10 is pulled backwards, the palm pushes the upper end of the sleeve 8 downwards, and the sleeve 8 moves downwards along the limiting handle 10 outside the injection needle cylinder 1, then contacts and moves the sleeve 8 and the push-pull handle 7 downwards together, so that the piston 5 is pressed down in the injection syringe 1, thereby realizing the single-hand injection operation.

The lower sides of the push-pull handle 7 and the limiting handle 10 are both provided with concave finger-pressing grooves 13. The finger pressing groove 13 is arranged, so that the finger can be conveniently pulled backwards, and the comfort is good.

The length of the limiting handle 10 is twice that of the limiting column 11. The length of the limiting column 11 is half of that of the limiting handle 10, so that the phenomenon that the limiting handle 10 falls off from the limiting column 11 when the limiting handle 10 is pulled backwards for injection operation can be avoided.

When the injection device is used, the limiting handle 10 is firstly inserted and fixed in the limiting groove 12 to lock the sleeve 8 and prevent the sleeve 8 from sliding on the injection needle cylinder 1, then the sleeve 8 is held by the palm, the push-pull handles 7 extending out of two sides of the sleeve 8 are pulled backwards by two fingers to carry out one-hand liquid suction operation, when injection is needed, the limiting handle 10 can be lifted and rotated, then the limiting handle 10 is inserted and connected into the sliding groove 9 in parallel to release the locking of the sleeve 8, the limiting handle 10 can be pulled backwards by the two fingers, the palm presses down the top end of the sleeve 8 to press the sleeve 8 and the push-pull handle 7 together to push the piston 5 to move downwards, and the one-hand injection operation is completed.

Claims

1. The utility model provides a novel infection-preventing injector, includes injection cylinder, injection needle seat, syringe needle, needle cap, piston, sleeve, its characterized in that: the injection needle device is characterized in that an injection needle seat is fixedly communicated with the lower end of an injection needle cylinder, an injection needle head is fixedly communicated with the lower end of the injection needle seat, a needle cap is sleeved on the injection needle head, a piston is movably inserted in the injection needle cylinder, a push-pull rod is fixedly connected to the center of the top surface of the piston, a push-pull handle perpendicular to the push-pull rod is fixedly connected to the upper end of the push-pull rod, a sleeve is movably sleeved on the upper end of the injection needle cylinder, two sliding grooves are symmetrically formed in two sides of the sleeve, limiting grooves are symmetrically formed in two sides of the lower end of each sliding groove, two ends of the push-pull handle are slidably inserted in the sliding grooves, limiting columns are symmetrically fixed to two sides of the upper end of the injection needle cylinder, limiting handles.

2. The novel infection-preventing syringe as set forth in claim 1, wherein: the lower sides of the push-pull handle and the limiting handle are both provided with inwards concave finger-pressing grooves.

3. The novel infection-preventing syringe as set forth in claim 1, wherein: the length of the limiting handle is twice as long as that of the limiting column.