CN220967817U

CN220967817U - Syringe convenient to pull out syringe needle

Info

Publication number: CN220967817U
Application number: CN202321774404.7U
Authority: CN
Inventors: 唐溪文; 汤涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-05-17
Anticipated expiration: 2033-07-07

Abstract

The utility model discloses an injector convenient for pulling out a needle head, which comprises an inner channel injector shell, wherein the lower end of the inner channel injector shell is provided with a protective needle pulling shell.

Description

Syringe convenient to pull out syringe needle

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a syringe convenient for pulling out a needle.

Background

In the hospital, when injecting medicine for patient, the syringe is the indispensable medicine injection instrument, and after the syringe uses, need nurse to pull out its syringe needle with sharp machine box's bayonet socket with its syringe needle when handling, then at classification processing, but after the syringe uses, need carry to unified place and carry out the needle pulling processing, thereby in carrying the in-process, the problem of unexpected stabbing the people easily appears, and when utilizing sharp machine box bayonet to pull out the syringe needle, also can appear the syringe needle spring phenomenon often, thereby also appear stabbing staff's problem easily, for this reason we propose a syringe convenient to pull out the syringe needle.

Disclosure of utility model

The present utility model is directed to a syringe that facilitates removal of a needle, and solves the above-mentioned problems associated with the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an syringe convenient to pull out syringe needle, includes interior passageway syringe shell, the piston rod has been cup jointed to the inside of interior passageway syringe shell, the protection needle pulling shell is installed to the lower extreme of interior passageway syringe shell, and the syringe needle is installed to the lower extreme of interior passageway syringe shell, the syringe needle cooperatees with the protection needle pulling shell.

Preferably, the inner channel syringe shell comprises a cylindrical shell, a central column is integrally formed in the middle of the lower end of the inner portion of the cylindrical shell, a sleeving cavity is formed in the lower end of the central column, a medicine discharging pipe is integrally formed in the upper end of the inner side wall of the sleeving cavity, a needle is sleeved at the lower end of the medicine discharging pipe, a communication hole is formed in the inner portion of the central column, and the communication hole is communicated with the medicine discharging pipe and the inner portion of the cylindrical shell.

Preferably, the upper end of the center column is integrally formed with a cavity.

Preferably, the piston rod comprises a ring-mounted piston, a pushing injection handle is mounted in the middle of the ring-mounted piston, a sleeve hole is formed in the middle of the pushing injection handle, the sleeve hole is sleeved with the center column, and a plurality of sealing rings are uniformly and fixedly mounted at the lower end of the inner side wall of the sleeve hole.

Preferably, the protection is pulled out needle shell and is cup jointed the shell including cup jointing the shell, cup joint the shell and cup joint the chamber mutually, cup joint the lateral wall fixed mounting of shell and have the antiskid circle, cup joint the shell and cup joint mutually with syringe needle and medicine discharging tube, the lower extreme bonding of cup jointing the shell has the protection subsides, the inside fixed mounting who cup joints the shell has the rubber ring, the lower extreme outer fringe fixed mounting who cup joints the shell has the traction plate.

Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses an injector convenient for pulling out a needle, which is characterized in that when the injector is used, a protective paste is torn off, a pulling plate can be pulled up to pull a sleeve shell, so that the sleeve shell enters a sleeve cavity, at the moment, liquid medicine can be sucked into a medicine injection operation, after the injector is used, the pulling plate is pulled down directly to pull down the sleeve shell, at the moment, a needle enters the sleeve shell, the needle is pulled down from a medicine discharging tube, and is simultaneously clamped in the sleeve shell by a rubber ring in a squeezing way, and the injector can be carried to a unified place for unified treatment.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the utility model with parts broken away;

FIG. 3 is a cut-away view of the present utility model in use.

In the figure: the inner channel syringe shell 1, the cylindrical shell 11, the central column 12, the sleeve joint cavity 13, the medicine discharge tube 14, the communication hole 15, the piston rod 2, the piston 21, the push injection handle 22, the sleeve joint hole 23, the sealing ring 24, the protective needle pulling shell 3, the sleeve joint shell 31, the anti-slip ring 32, the protective paste 33, the rubber ring 34, the traction plate 35, the needle head 4 and the cavity 5.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides an injector convenient to pull out syringe needle, includes interior passageway syringe shell 1, and piston rod 2 has been cup jointed to the inside of interior passageway syringe shell 1, and protection needle pulling shell 3 is installed to the lower extreme of interior passageway syringe shell 1, and syringe needle 4 cooperatees with protection needle pulling shell 3.

Specifically, the inner channel syringe housing 1 comprises a cylindrical housing 11, a central column 12 is integrally formed in the middle of the lower end of the interior of the cylindrical housing 11, a sleeve joint cavity 13 is formed in the lower end of the central column 12, a medicine discharge tube 14 is integrally formed in the middle of the upper end of the inner side wall of the sleeve joint cavity 13, a needle 4 is sleeved at the lower end of the medicine discharge tube 14, a communication hole 15 is formed in the interior of the central column 12, and the communication hole 15 is communicated with the medicine discharge tube 14 and the interior of the cylindrical housing 11.

Specifically, the upper end of the center post 12 is integrally formed with a cavity 5.

The cavity 5 is used for reducing the use of materials and reducing the production cost.

Specifically, the piston rod 2 includes annular piston 21, and annular piston 21's mid-mounting has to push away notes handle 22, and the middle part of pushing away notes handle 22 has seted up cup joints hole 23, cup joints hole 23 and center post 12 mutually, and the inside wall lower extreme of cup joints hole 23 evenly fixed mounting has a plurality of sealing washer 24, and a plurality of sealing washer 24 cooperate with center post 12.

Specifically, the protection needle pulling shell 3 comprises a sleeve shell 31, the sleeve shell 31 is sleeved with the sleeve cavity 13, an anti-slip ring 32 is fixedly arranged on the outer side wall of the sleeve shell 31, the sleeve shell 31 is sleeved with the needle 4 and the medicine discharging tube 14, a protection paste 33 is adhered to the lower end of the sleeve shell 31, a rubber ring 34 is fixedly arranged in the sleeve shell 31, and a traction plate 35 is fixedly arranged on the outer edge of the lower end of the sleeve shell 31.

The anti-slip ring 32 is extruded with the inner side wall of the sleeve joint cavity 13 to prevent slipping, so that the problem that the sleeve joint shell 31 is randomly moved during use is avoided.

Working principle: when the injector is used, the protective paste 33 is torn off, the pulling plate 35 can be pulled to pull the sleeve shell 31 up, so that the sleeve shell 31 enters the sleeve cavity 13, at the moment, liquid medicine can be sucked into the injection operation, and after the use is finished, the pulling plate 35 is pulled to directly pull down the sleeve shell 31, at the moment, the needle head enters the sleeve shell 31, the needle head is pulled down from the medicine discharging tube 14, and meanwhile, the needle head is clamped in the sleeve shell 31 by the rubber ring 34 in a squeezing way, and can be carried to a unified place for unified treatment.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An injector convenient for extracting a needle head, comprising an inner channel injector shell (1), characterized in that: the inner channel syringe shell (1) is internally sleeved with a piston rod (2), the lower end of the inner channel syringe shell (1) is provided with a protective needle pulling shell (3), the lower end of the inner channel syringe shell (1) is provided with a needle head (4), and the needle head (4) is matched with the protective needle pulling shell (3);

The inner channel syringe shell (1) comprises a cylindrical shell (11), a central column (12) is integrally formed in the middle of the lower end of the interior of the cylindrical shell (11), a sleeve joint cavity (13) is formed in the lower end of the central column (12), a medicine discharge pipe (14) is integrally formed in the middle of the upper end of the inner side wall of the sleeve joint cavity (13) of the central column (12), a needle head (4) is sleeved at the lower end of the medicine discharge pipe (14), a communication hole (15) is formed in the interior of the central column (12), and the communication hole (15) is communicated with the medicine discharge pipe (14) and the interior of the cylindrical shell (11);

The upper end of the central column (12) is integrally formed with a cavity (5);

The piston rod (2) comprises an annular piston (21), a pushing injection handle (22) is arranged in the middle of the annular piston (21), a sleeving hole (23) is formed in the middle of the pushing injection handle (22), the sleeving hole (23) is sleeved with the central column (12), a plurality of sealing rings (24) are uniformly and fixedly arranged at the lower end of the inner side wall of the sleeving hole (23), and the sealing rings (24) are matched with the central column (12);

The protection is pulled out needle shell (3) and is cup jointed shell (31) including cup jointing shell (31), cup joint shell (31) and cup joint chamber (13) and cup joint outer lateral wall fixed mounting of shell (31) and have anti-skidding circle (32), cup joint shell (31) and syringe needle (4) and arrange medicine pipe (14) and cup joint mutually, the lower extreme bonding of cup jointing shell (31) has protection subsides (33), the inside fixed mounting of cup jointing shell (31) has rubber ring (34), the lower extreme outer fringe fixed mounting of cup jointing shell (31) has traction plate (35).