CN213941747U

CN213941747U - Disposable sterile syringe

Info

Publication number: CN213941747U
Application number: CN202022699422.6U
Authority: CN
Inventors: 童剀鹏; 杜媛媛
Original assignee: Wuhan Feisite Medical Equipment Co ltd
Current assignee: Wuhan Feisite Medical Equipment Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-08-13
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a disposable aseptic syringe, concretely relates to medical instrument field, including syringe section of thick bamboo, push rod and syringe needle, syringe section of thick bamboo's surface is provided with two fixed plates, two the fixed plate is the symmetry setting about syringe section of thick bamboo's axis the inside of fixed plate is provided with the ration and extracts the subassembly. The utility model discloses a remove the ration piece according to actual extraction volume, compare the reading of ration piece on the scale simultaneously and confirm the extraction volume, when extracting along with the pull of push rod drives the sliding block and removes in the spout, and then when the sliding block was laminated with the ration piece mutually, medical personnel can know the extraction volume up to standard directly perceivedly, so can make things convenient for medical personnel to use, simultaneously the utility model discloses be provided with the stock solution subassembly, a little liquid medicine of discharge can be stored when the exhaust air, avoid the polluted environment, do benefit to practical use.

Description

Disposable sterile syringe

Technical Field

The utility model relates to the field of medical equipment, concretely relates to aseptic syringe of disposable.

Background

The syringe is a common medical appliance, and as early as the 15 th century, kathler, italian, proposed the principle of the syringe, mainly using a needle to extract or inject a gas or liquid, and the syringe can also be used for medical devices, containers, and scientific instruments such as those used in chromatography, to inject through a rubber septum;

the prior art has the following defects: before injection with an injector, medical personnel push a push rod to discharge air in an injector cylinder and a needle head until liquid medicine is discharged, so that the phenomenon that a large amount of air in the injector is injected into blood of a human body to form thrombus is avoided; therefore, when the air is removed, a small amount of liquid medicine is inevitably discharged, and in general, the liquid medicine is directly discharged to the ground by a nurse and exposed in the air, which affects the environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a disposable aseptic syringe, should possess the advantage such as to solve the above-mentioned weak point in the technique.

In order to achieve the above object, the present invention provides the following technical solutions: a disposable sterile syringe comprises a syringe barrel, a push rod and a needle head, wherein two fixing plates are arranged on the outer surface of the syringe barrel, the two fixing plates are symmetrically arranged relative to the central axis of the syringe barrel, a quantitative extraction assembly is arranged inside the fixing plates, a needle cap is sleeved outside the needle head, and a liquid storage assembly is arranged at a position, close to a liquid outlet of the needle head, of the needle cap;

the ration extraction subassembly includes sliding block and ration piece, the spout has been seted up to the upper surface of fixed plate, the equal sliding connection of sliding block and ration piece is in the spout the upper surface of fixed plate is provided with the scale mark, the position that the sliding block is close to the scale mark is provided with the sign strip, the sign strip is the triangle-shaped structure, and just the sign strip is in directly over the scale mark, be provided with the connecting rod between sliding block and the push rod, the connecting rod is located the spout, and the connecting rod runs through the ration piece the inside of ration piece is provided with spacing subassembly.

Preferably, the stock solution subassembly includes the reservoir, the inside of reservoir is provided with soft stopper, the syringe needle inserts in the soft stopper, and the soft stopper is provided with the jump ring in the one side of keeping away from the syringe needle, the both ends of jump ring bond with the inner wall of soft stopper and reservoir respectively.

Preferably, the needle cap is made of transparent plastic materials, and the soft plug is made of silica gel materials.

Preferably, spacing subassembly is including locating lever and a plurality of location breach, a plurality of the location breach is the equidistance along the length direction of fixed plate and distributes the setting, locating lever interference fit is in the location breach.

Preferably, the fixing plate and the syringe barrel are arranged in a hot-melting forming mode.

Preferably, the connecting rod is fixedly connected with the push rod through a buckle.

Adopt aforementioned technical scheme, the utility model discloses a remove the ration piece according to actual extraction volume, compare the reading of ration piece on the scale simultaneously and confirm the extraction volume, when extracting along with the pull of push rod drives the sliding block and removes in the spout, and then when the sliding block was laminated with the ration piece mutually, medical personnel can know the extraction volume up to standard directly perceivedly, so can make things convenient for medical personnel to use, simultaneously the utility model discloses be provided with the stock solution subassembly, a little liquid medicine of discharge can be stored when the exhaust air, avoids the polluted environment, does benefit to practical use.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged view of a portion a of fig. 1 according to the present invention.

Fig. 3 is an enlarged view of a portion B of fig. 1 according to the present invention.

Fig. 4 is a schematic structural view of the liquid storage assembly of the present invention.

Description of reference numerals:

1 syringe section of thick bamboo, 2 needle caps, 3 push rods, 4 syringe needles, 5 fixed plates, 6 ration extraction subassemblies, 7 stock solution subassemblies, 61 sliding block, 62 ration piece, 63 scale marks, 64 sign strip, 65 connecting rod, 66 spacing subassemblies, 67 spout, 661 locating lever, 662 location breach, 71 stock solution groove, 72 soft stopper, 73 jump ring.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a disposable aseptic syringe as shown in figures 1-4, which comprises a syringe barrel 1, a push rod 3 and a needle 4, wherein two fixing plates 5 are arranged on the outer surface of the syringe barrel 1, the two fixing plates 5 are symmetrically arranged about the central axis of the syringe barrel 1, and the arrangement is understood to ensure that the push rod 3 is subjected to more average pulling force when pulled, so that the movement of a piston in the syringe barrel 1 can keep linear movement without deviation, thereby being beneficial to actual operation, a quantitative extraction component 6 is arranged inside the fixing plate 5, the quantitative extraction component 6 is arranged to facilitate quantitative extraction of medical personnel, a needle cap 2 is sleeved outside the needle 4,

a liquid storage component 7 is arranged at the position, close to the liquid outlet of the needle head 4, of the needle cap 2;

the quantitative extraction component 6 comprises a sliding block 61 and a quantitative block 62, a sliding groove 67 is formed in the upper surface of the fixed plate 5, the sliding block 61 and the quantitative block 62 are both connected in the sliding groove 67 in a sliding manner, a scale mark 63 is arranged on the upper surface of the fixed plate 5, an identification strip 64 is arranged at a position, close to the scale mark 63, of the sliding block 61, the identification strip 64 is of a triangular structure, the identification strip 64 is located right above the scale mark 63, a connecting rod 65 is arranged between the sliding block 61 and the push rod 3, the connecting rod 65 is located in the sliding groove 67, the connecting rod 65 penetrates through the quantitative block 62, a limiting component 66 is arranged inside the quantitative block 62, and the identification strip 64 can be understood as a function of judging the accuracy of the quantitative extraction degree, that is, when the push rod 3 pushes the piston to be attached to the syringe barrel 1, the direction of the identification strip 63 should be at a zero scale mark of the scale mark 63, this helps guaranteeing the accuracy of ration extraction, simultaneously in specific implementation, when needs draw a certain amount of liquid medicine, should remove dosing block 62 at first, dosing block 62 compares the dosing block 62 index at scale mark 63 when the spout 67 removes, when moving to suitable position, fix department dosing block 62 through spacing subassembly 66, like this when drawing the liquid medicine, pulling push rod 3, through the transmission of connecting rod 65, and then drive sliding block 61 and remove, when sliding block 61 and dosing block 62 laminated mutually, medical personnel can be clear and definite the experience from push rod 3's running resistance at this moment, stop drawing the liquid medicine at this moment can, so can make things convenient for medical personnel to use.

The liquid storage component 7 comprises a liquid storage tank 71, a soft plug 72 is arranged in the liquid storage tank 71, the needle 4 is inserted into the soft plug 72, a clamp spring 73 is arranged on one side, away from the needle 4, of the soft plug 72, two ends of the clamp spring 73 are respectively bonded with the soft plug 72 and the inner wall of the liquid storage tank 71, it can be understood that the liquid storage component 7 is arranged to effectively recover liquid medicine and prevent the liquid medicine from spilling and polluting the environment, in the specific implementation process, the liquid medicine is extracted from the interior of the syringe barrel 1 and the liquid medicine is drawn out at this time, the needle sleeve 2 is sleeved in the direction of the needle 4, the liquid outlet of the needle 4 is inserted into the interior of the soft plug 72, so that when the push rod 3 is pushed, the liquid medicine and air flow out from the liquid outlet of the needle 4 when the liquid medicine in the syringe barrel 1 is pressed upwards, but the liquid outlet of the needle 4 is in contact with the soft plug 72, so that the pushing resistance of the push rod 3 exists, can avoid the liquid medicine of release too much like this, influence treatment, when the slow increase of resistance, jump ring 73 can produce elastic deformation, and then soft stopper 72 takes place to remove, and the air just can be in between soft stopper 72 and syringe needle 4 like this, and the inside of needle cap 2 also exists to exhaust liquid medicine, can not produce the pollution to the environment.

Needle cap 2 is made for transparent plastic material, soft stopper 72 is made for the silica gel material, so set up for the convenience medical personnel sees the inside condition of needle cap 2 to this judgement is whether the exhaust air is accomplished.

Spacing subassembly 66 is including locating lever 661 and a plurality of location breach 662, a plurality of location breach 662 is the equidistance along the length direction of fixed plate 5 and distributes the setting, locating lever 661 interference fit is in location breach 662, so sets up in order to carry on spacingly to dosing block 62, ensures the normal clear of ration extraction operation, and the setting of a plurality of location breach 662 is in order to make dosing block 62 all can obtain fixed effect after removing, avoids dosing block 62 to produce the displacement and influences whether medical personnel judge to extract the volume.

The fixing plate 5 and the syringe barrel 1 are arranged in a hot melting mode, and structural stability is facilitated.

Through buckle fixed connection between connecting rod 65 and the push rod 3, set up like this for the convenience to the propelling movement of liquid medicine, at specific propelling movement in-process, can remove the fixed effect between connecting rod 65 and the push rod 3, make medical personnel's resistance to push obviously reduce like this, facilitate the use.

This practical theory of operation: when a certain amount of liquid medicine needs to be extracted, the quantifying block 62 should be moved firstly, the quantifying block 62 moves in the sliding groove 67 and compares the index of the quantifying block 62 on the scale mark 63, when the quantifying block 62 moves to a proper position, the quantifying block 62 is fixed by the limiting component 66, so that when the liquid medicine is extracted, the push rod 3 is pulled, the sliding block 61 is driven to move through the transmission of the connecting rod 65, when the sliding block 61 is attached to the quantifying block 62, the medical staff can clearly feel the running resistance from the push rod 3 at this time, and the liquid medicine extraction is stopped.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. A single use sterile syringe comprising a syringe barrel (1), a push rod (3) and a needle (4), characterized in that: the outer surface of the syringe barrel (1) is provided with two fixing plates (5), the two fixing plates (5) are symmetrically arranged about the central axis of the syringe barrel (1), a quantitative extraction component (6) is arranged inside the fixing plates (5), the outside of the needle head (4) is sleeved with a needle cap (2), and a liquid storage component (7) is arranged at a position, close to a liquid outlet of the needle head (4), of the needle cap (2);

quantitative extraction subassembly (6) include sliding block (61) and quantitative piece (62), spout (67) have been seted up to the upper surface of fixed plate (5), equal sliding connection in spout (67) of sliding block (61) and quantitative piece (62) the upper surface of fixed plate (5) is provided with scale mark (63), the position that sliding block (61) are close to scale mark (63) is provided with identification strip (64), identification strip (64) are the triangle-shaped structure, and identification strip (64) are directly over scale mark (63), be provided with connecting rod (65) between sliding block (61) and push rod (3), connecting rod (65) are located spout (67), and connecting rod (65) run through quantitative piece (62) the inside of quantitative piece (62) is provided with spacing subassembly (66).

2. A single use sterile syringe of claim 1 wherein: stock solution subassembly (7) include reservoir (71), the inside of reservoir (71) is provided with soft stopper (72), syringe needle (4) insert in soft stopper (72), and soft stopper (72) keep away from one side of syringe needle (4) and be provided with jump ring (73), the both ends of jump ring (73) bond with the inner wall of soft stopper (72) and reservoir (71) respectively.

3. A single use sterile syringe according to claim 2, wherein: the needle cap (2) is made of transparent plastic materials, and the soft plug (72) is made of silica gel materials.

4. A single use sterile syringe of claim 1 wherein: spacing subassembly (66) are including locating lever (661) and a plurality of location breach (662), a plurality of location breach (662) are equidistance distribution along the length direction of fixed plate (5) and set up, locating lever (661) interference fit is in location breach (662).

5. A single use sterile syringe of claim 1 wherein: the fixing plate (5) and the syringe barrel (1) are arranged in a hot melting forming mode.

6. A single use sterile syringe of claim 1 wherein: the connecting rod (65) is fixedly connected with the push rod (3) through a buckle.