CN218046054U

CN218046054U - Medical syringe

Info

Publication number: CN218046054U
Application number: CN202220347691.2U
Authority: CN
Inventors: 王晶坛; 黄婷婷; 王晨晨
Original assignee: Shanghai Lida College Co ltd
Current assignee: Shanghai Lida College Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-12-16
Anticipated expiration: 2032-02-21

Abstract

The utility model discloses a medical injector, relating to the field of injection tools, and the technical proposal of the utility model is that the medical injector comprises a medicine cylinder and a needle head; the front end of the medicine cylinder is provided with a nipple matched with the needle head, the nipple comprises a main connecting pipe and a sealing part at the end part, and a breaking part is arranged between the main connecting pipe and the sealing part; a piston is in sliding fit in the medicine cylinder, and liquid medicine is arranged between the piston and the front end of the medicine cylinder; the rear end port of the cartridge is clamped with a sealing cover, and the outer wall of the sealing cover is provided with a pull ring; the needle head is sleeved with a needle sleeve. The time that medical personnel dispensed medicine, suction and spread the dish can be saved, whole process can not contact the ampoule, does not have the potential safety hazard, and the liquid medicine is to specific disease special configuration, consequently can not take place extravagantly because of dispensing, also can not lead to the pollution because of dispensing.

Description

Medical syringe

Technical Field

The utility model relates to an injection instrument field especially relates to a medical syringe.

Background

At present, the subcutaneous or intramuscular injection is clinically started by opening the medicine and then sucking by using a syringe. The following problems are easy to occur in the process of injecting the patient after the patient is well exhausted:

1. contamination is likely to occur when the syringe draws the liquid medicine from the medicine bottle.

2. The liquid medicine in the medicine bottle can not be completely extracted, and the rest liquid medicine is leaked.

3. The nursing staff is easily injured. Such as needle stick injuries and glass scratches when the ampoule bottle is opened.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a medical injector can save medical personnel and dispense, suction and shop's time of dish, and whole process can not contact the ampoule, does not have the potential safety hazard, and the liquid medicine is to the special configuration of specific disease, consequently can not be because of dispensing and taking place extravagantly, also can not lead to the pollution because of dispensing.

The utility model provides a technical scheme that its technical problem adopted is: a medical injector comprising a cartridge and a needle;

a nipple matched with the needle head is arranged at the front end of the medicine cylinder, the nipple comprises a main connecting pipe and a sealing part at the end part, and a breaking part is arranged between the main connecting pipe and the sealing part;

a piston is in sliding fit in the medicine cylinder, and liquid medicine is arranged between the piston and the front end of the medicine cylinder;

the rear end port of the cartridge is clamped with a sealing cover, and the outer wall of the sealing cover is provided with a pull ring;

the needle head is sleeved with a needle sleeve.

The medicine in the cartridge case is packaged and prefabricated in advance, the one-time use amount prepared aiming at specific diseases, when in use, the sealing part is broken off from the broken part and taken down, the cartridge case at the moment is opened at the nipple, the needle head is matched on the nipple, then the sealing cover is taken down from the rear port of the cartridge case through the pull ring, the piston can be directly contacted from the outside at the moment, finally, the needle sleeve is taken down from the needle head, the needle is inserted into the skin, the outer wall of the piston is propped against through the needle sleeve, the piston is pushed by the needle sleeve, and then the liquid medicine enters the body from the needle head.

Preferably, the sealing portion is a disposable heat-seal cap. The sealing is convenient to carry out fast and at low cost.

Preferably, the sealing portion has wing plates extending to both sides. The sealing part can be conveniently broken off from the breaking part through the wing plate.

Preferably, the break-off portion is a finer necking structure than the connecting main tube. The necking structure can be broken better.

Preferably, the needle and the needle guard are arranged in a closed box body, and the closed box body is provided with a box cover which can be uncovered. The sanitation of the needle head and the needle sleeve is convenient to keep, and the outside pollution is avoided.

Preferably, the closed box is a cylindrical structure. Is convenient for storage.

Preferably, the outer surface of the piston is provided with a stud, and the end of the needle sleeve is provided with a screw hole matched with the stud. The needle sleeve is conveniently connected with the piston through threads, so that the piston is better pushed.

Preferably, the cartridge is externally provided with a shoulder at the rear end. The cartridge case is convenient to hold, and a fulcrum is provided.

The utility model has the advantages that:

this scheme of adoption, the liquid medicine is prefabricated in the cartridge case, and the cartridge case uses as the syringe simultaneously, can save medical personnel and dispense, suction and the time of spreading the dish, and whole process can not contact the ampoule, does not have the potential safety hazard, and the liquid medicine is to the special configuration of specific disease, consequently can not take place extravagantly because of dispensing, also can not lead to the pollution because of dispensing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only three of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a cartridge according to an embodiment of the invention;

fig. 2 is a schematic view of a needle and sleeve according to an embodiment of the present invention;

fig. 3 is a schematic view of an injection state according to an embodiment of the present invention;

the medicine container comprises a medicine container 1, a piston 2, a stud 3, a sealing cover 4, a pull ring 6, a lateral wing 7, a connecting main pipe 8, a breaking part 9, a sealing part 10, a wing plate 11, a sealing box 12, a box cover 13, a needle 14, a needle sleeve 15 and a screw hole 16.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.

Examples

As shown in fig. 1, a medical injector comprises a cartridge 1 and a needle 14.

A nipple matched with the needle 14 is arranged at the front end of the medicine cylinder 1, the nipple comprises a main connecting pipe 8 and a sealing part 10 at the end part, and a breaking part 9 is arranged between the main connecting pipe 8 and the sealing part 10; a piston 2 is in sliding fit with the medicine cylinder 1, and liquid medicine is filled between the piston 2 and the front end of the medicine cylinder 1;

the rear end opening of the medicine cylinder 1 is clamped with a sealing cover 4, and the outer wall of the sealing cover 4 is provided with a pull ring 6.

As shown in fig. 2, the needle 14 is sheathed with a needle sheath 15.

Referring to fig. 3, the medicine in the medicine cartridge 1 is packaged and prepared in advance, and when the medicine cartridge is used for one time for a specific disease, the sealing part 10 is broken off and taken down from the breaking part 9, the medicine cartridge 1 is opened at the nipple, the needle is adapted to the nipple, then the sealing cover 4 is taken down from the rear port of the medicine cartridge 1 through the pull ring 6, the piston 2 can be directly contacted from the outside, finally the needle sleeve 15 is taken down from the needle 14, the needle is inserted into the skin, the outer wall of the piston 2 is supported through the needle sleeve 15, the piston 2 is pushed by the needle sleeve 15, and then the medicine liquid enters the body from the needle 14.

The sealing portion 10 is a disposable heat-sealing cap. The sealing is convenient to carry out fast and with low cost. The sealing portion 10 has wing plates 11 extending to both sides. The sealing portion 10 can be more easily broken from the breaking portion 9 by the wing plate 11. The breaking portion 9 is a neck structure finer than the connecting main tube 8. The constriction may be broken better.

The needle 14 and the needle sleeve are arranged in the closed box 12, and the closed box 12 is provided with a removable box cover 13. So as to keep the needle 14 and the needle sheath 15 hygienic and free from external contamination. The body of the enclosure 12 is of cylindrical configuration. Is convenient for storage.

The outer surface of the piston 2 is provided with a stud 3, and the end part of the needle sleeve is provided with a screw hole 16 matched with the stud 3. The needle sleeve 15 is convenient to be connected with the piston 2 in a threaded mode so as to better push the piston 2.

The cartridge 1 is provided with a shoulder 7 on the outside at the rear end. Facilitating the handling of the cartridge 1 and providing a fulcrum.

By adopting the scheme, the liquid medicine is prefabricated in the medicine cylinder 1, the medicine cylinder 1 is used as the injector at the same time, the time for medicine dispensing, suction and pallet paving of medical care personnel can be saved, the whole process can not contact an ampoule bottle, no potential safety hazard exists, the liquid medicine is specially configured for specific diseases, waste can not occur due to medicine dispensing, and pollution can not be caused due to medicine dispensing.

The above embodiments should not be limited in any way the present invention, and all technical solutions obtained by adopting equivalent replacement or equivalent conversion modes fall within the protection scope of the present invention.

Claims

1. A medical injector, characterized by comprising a cartridge (1) and a needle (14);

the front end of the medicine cylinder (1) is provided with a nipple matched with the needle head (14), the nipple comprises a main connecting pipe (8) and a sealing part (10) at the end part, and a breaking part (9) is arranged between the main connecting pipe (8) and the sealing part (10);

a piston (2) is in sliding fit with the medicine cylinder (1), and liquid medicine is filled between the piston (2) and the front end of the medicine cylinder (1);

the rear end port of the medicine cylinder (1) is clamped with a sealing cover (4), and the outer wall of the sealing cover (4) is provided with a pull ring (6);

the needle (14) is sleeved with a needle sleeve (15).

2. A medical injector according to claim 1, characterized in that: the sealing part (10) is a disposable heat-seal cap.

3. A medical injector according to claim 1, characterized in that: wing plates (11) extend towards two sides of the sealing part (10).

4. A medical injector according to claim 1, characterized in that: the breaking part (9) is a necking structure which is finer than that of the connecting main pipe (8).

5. A medical injector according to claim 1, characterized in that: the needle head (14) and the needle sleeve (15) are arranged in a closed box (12), and a box cover (13) which can be uncovered is arranged on the closed box (12).

6. A medical injector according to claim 5, characterized in that: the sealing box (12) body is of a cylindrical structure.

7. A medical injector according to claim 1, characterized in that: the outer surface of the piston (2) is provided with a stud (3), and the end part of the needle sleeve (15) is provided with a screw hole (16) matched with the stud (3).

8. A medical injector according to claim 1, characterized in that: the outside of the rear end of the medicine cylinder (1) is provided with a side wing (7).