CN216536413U

CN216536413U - Anti-pollution sliding operation syringe

Info

Publication number: CN216536413U
Application number: CN202122515704.0U
Authority: CN
Inventors: 徐小干; 戴正银
Original assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Current assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-05-17
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses an anti-pollution sliding operation injector which comprises a cylinder body and a piston shaft, wherein a piston head is arranged at one end of the piston shaft, a sliding shaft is connected to the other end of the piston shaft, a groove is formed in the side wall of the cylinder body, and the end, which is not connected with the piston shaft, of the sliding shaft penetrates through the groove and is connected with a sliding cap. The piston rod changes the traditional piston handle into the sliding cap, can avoid the pollution of liquid medicine caused by touching the piston shaft in use, is convenient to use by one hand, is convenient and quick, has strong practicability, and has good application prospect in industry.

Description

Anti-pollution sliding operation syringe

Technical Field

The utility model belongs to the technical field of medical equipment, and particularly relates to an anti-pollution sliding operation injector.

Background

The injector is a common medical device, at present, a disposable injector is mostly adopted for clinically preparing liquid medicine and injecting the liquid medicine, and medical workers realize operations of sucking the liquid medicine, mixing the liquid medicine, injecting and the like by pushing and pulling a piston push rod. When aseptic operation requires medicine suction, fingers can only hold the handle at the outermost end of the piston, but in actual work, when medical personnel perform operations such as medicine liquid suction, medicine liquid mixing, injection and the like, hands can contact the outer edge of the piston push rod, and when the piston push rod is pushed and pulled, the outer edge of the piston push rod can often contact the inner wall of the syringe needle cylinder, so that medicine liquid pollution is easily caused, medicine safety is affected, and even cross infection of patients can be caused. Can be anti-pollution to a certain extent through the seal cover, but the seal cover is direct to be overlapped outside the piston push rod, and inconvenient when holding the piston push rod often influences the operation.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a slide-operated syringe for contamination prevention, which can be used by sliding with one hand and prevents contamination.

The technical scheme adopted by the utility model is as follows:

the utility model provides a slide operation syringe for anti-pollution, it includes barrel and piston shaft, and the one end of piston shaft is equipped with the piston head, and the other end of piston shaft is connected with the sliding shaft, is equipped with the fluting on the lateral wall of barrel, and the sliding shaft passes the fluting with the one end of piston shaft hub connection and is connected with the slip cap.

The slotting of the device is a strip-shaped slot parallel to the cylinder body.

In the device, the length of the top of the groove from the cylinder body is less than or equal to the total length of the piston head and the piston shaft, and the total length of the piston head and the piston shaft is greater than the length of the groove.

The device also comprises a needle head arranged at the top of the barrel body and a supporting plate arranged at the tail part of the barrel body, wherein the supporting plate is vertical to the barrel body.

In a preferred scheme, the supporting plate is annular, and the tail part of the barrel is not closed.

In another preferred embodiment, the support plate is circular and the end of the barrel is closed.

In the device, the sliding cap is an arc-shaped sliding block matched with the outer side wall of the cylinder body.

Preferably, the sliding shaft is made of a material having a certain hardness.

In this device, be equipped with the scale on the lateral wall of barrel.

The utility model has the following beneficial effects:

this device simple structure, convenient operation changes original piston handle into the slip cap that sets up on the barrel lateral wall, the one-hand operation of being convenient for on the one hand, and on the other hand can not contact piston shaft and piston head when the operation, has avoided the liquid medicine to be contaminated, and the practicality is strong.

Drawings

FIG. 1 is a schematic view of the piston head of the present invention shown furthest from the needle;

FIG. 2 is a schematic view of the configuration of the plunger head of the present invention when it is closest to the needle;

FIG. 3 is a schematic view of the grooved side of the present invention;

in the figure: 1-a cylinder body; 2-a piston head; 3-a piston shaft; 4-a needle head; 5-slotting; 6-sliding shaft; 7-a sliding cap; 8-support plate.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

as shown in figures 1-3, the utility model comprises a cylinder body 1 and a piston shaft 3, wherein one end of the piston shaft 3 is provided with a piston head 2, the other end of the piston shaft 3 is connected with a sliding shaft 6, the side wall of the cylinder body 1 is provided with a slot 5, and one end of the sliding shaft 6 which is not connected with the piston shaft 3 passes through the slot 5 and is connected with a sliding cap 7.

In the utility model, the open slot 5 is a strip slot parallel to the cylinder 1, the width of the open slot 5 is slightly larger than the diameter of the sliding shaft 6, under the condition of not influencing the normal sliding of the sliding shaft 6, the smaller the width of the open slot 5 is, the better the open slot 5 is, the narrower the open slot 5 is, the smaller the probability of the pollutants entering the inner cavity of the cylinder 1 is, and meanwhile, the open slot 5 can also limit the moving range of the piston head 2 and the piston shaft 3.

Further, the length from the top of the slot 5 to the cylinder 1 is less than or equal to the total length of the piston head 2 and the piston shaft 3, so that the piston head 2 can contact the top of the interior of the cylinder 1, and the liquid medicine can be completely discharged during re-injection.

Meanwhile, the total length of the piston head 2 and the piston shaft 3 is greater than that of the slot 5, so that when the piston head 2 and the piston rod 3 are at the lowest position, the piston shaft 3 is above the top of the slot 5.

In this device, the internal thread hole has been seted up to the bottom side of piston axle 3, and the external screw thread that matches with it is located to the one end surface of sliding axle 6, and piston axle 3 and sliding axle 6 are at first through assorted internal thread hole and external screw thread realization threaded connection, and the other end of sliding axle 6 is fixed together with modes such as 7 rethread buckle connections of slip cap.

The device also comprises a needle 4 arranged at the top of the barrel body 1 and a support plate 8 arranged at the tail part of the barrel body 1, wherein the support plate 8 is vertical to the barrel body 1.

In a preferred scheme, the supporting plate 8 is annular, and the tail part of the barrel 1 is not closed.

In another preferred scheme, backup pad 8 is circular, and the afterbody of barrel 1 is closed, and better assurance pollutant can not get into barrel 1 inner chamber through barrel 1 afterbody.

In the device, the length of the barrel body 1 is slightly longer than that of a common syringe, the barrel body 1 is long enough, the sliding of the barrel body 1 when a hand holds the barrel body 1 is not influenced, the barrel body is more convenient to hold, and the hand does not contact the inside of the barrel body 1.

In the device, the sliding cap 7 is an arc-shaped sliding block which is matched with the outer side wall of the cylinder body 1, the specific shape of the sliding cap 7 can be designed according to the shape suitable for fingers, and the sliding cap 7 can drive the sliding shaft 6 to slide back and forth, so that the piston head 2 and the piston shaft 3 are driven to slide back and forth.

Preferably, the sliding shaft 6 is made of a material with certain hardness, so that the piston head 2 and the piston shaft 3 can be pushed.

In this device, be equipped with the scale on the lateral wall of barrel 1, the help operator can be accurate the absorption or discharge the liquid medicine.

The using process of the utility model is as follows:

when the liquid medicine is sucked, the sliding cap 7 is pressed by a thumb, the barrel body 1 is held by other fingers, the sliding cap 7 slides to the top of the groove 5, the piston head 2 is abutted to the top inside the barrel body 1, then the needle head 4 of the syringe is inserted into the liquid medicine, and the sliding cap 7 is pressed to slide the piston head 2 to the scale position of the liquid medicine to be sucked, so that the liquid medicine is sucked. When the liquid medicine is injected, the sliding cap 7 on the syringe which has sucked the liquid medicine is slowly slid to the top of the open slot 5, and the liquid medicine is completely discharged from the inner part of the cylinder 1, namely the injection action is finished.

Other processes of the present invention may employ existing techniques.

While the preferred embodiments of the present invention have been illustrated, further modifications of the utility model will occur to those skilled in the art and are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a be used for anti-pollution slip operation syringe, its characterized in that includes barrel (1) and piston shaft (3), the one end of piston shaft (3) is equipped with piston head (2), the other end of piston shaft (3) is connected with sliding shaft (6), be equipped with fluting (5) on the lateral wall of barrel (1), sliding shaft (6) not with the one end that piston shaft (3) are connected is passed fluting (5) are connected with slip cap (7).

2. A slide operated syringe for contamination protection according to claim 1, characterised in that the slot (5) is an elongated slot parallel to the barrel (1).

3. A slide-operated syringe for contamination protection according to claim 2, characterised in that the length of the top of the slot (5) from the barrel (1) is less than or equal to the total length of the piston head (2) and piston shaft (3), the total length of the piston head (2) and piston shaft (3) being greater than the length of the slot (5).

4. A slide-operated syringe for contamination protection according to claim 1, characterised in that the device further comprises a needle (4) arranged at the top of the barrel (1) and a support plate (8) arranged at the end of the barrel (1), the support plate (8) being perpendicular to the barrel (1).

5. A slide-operated syringe for contamination prevention according to claim 4, wherein the holding plate (8) is ring-shaped and the rear end of the barrel (1) is not closed.

6. A slide-operated syringe for contamination protection according to claim 4, characterised in that the support plate (8) is circular and the rear end of the barrel (1) is closed.

7. A slide-operated syringe for contamination protection according to claim 1, characterised in that the sliding cap (7) is an arc-shaped slider adapted to the outer side wall of the barrel (1).

8. Anti-contamination sliding syringe according to claim 1, wherein the sliding shaft (6) is made of a material having a certain hardness.

9. A slidingly operated syringe for contamination protection according to claim 1, wherein the outer side wall of said barrel (1) is provided with a graduated scale.