CN219398540U

CN219398540U - Injector capable of adjusting injection depth

Info

Publication number: CN219398540U
Application number: CN202221929867.1U
Authority: CN
Inventors: 郑海娟; 侯志东; 郝春华; 王维亭; 潘晓晗; 李文; 贺晓娜; 刘杰; 郑子倩; 侯丛丛; 杨飒; 王均卓
Original assignee: Youji Tianjin Pharmaceutical Technology Co ltd
Current assignee: Youji Tianjin Pharmaceutical Technology Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2023-07-25
Anticipated expiration: 2032-07-21

Abstract

The utility model relates to an injector with adjustable injection depth, which comprises a transparent injector cylinder body provided with scale marks, a push rod, an injector needle and an adjustable needle limiting device, wherein the push rod is arranged on the injector cylinder body; the push rod is inserted into the syringe barrel, and a syringe needle and an adjustable needle limiting device are arranged at one end of the syringe barrel; the adjustable needle head limiting device is of a cylinder structure with internal threads, and the syringe cylinder body is provided with external threads matched with the internal threads; the needle point graduated scale is embedded in the external thread, and when the adjustable needle point limiting device covers a 0-scale line on the needle point graduated scale, the needle point of the syringe needle is flush with the edge of the adjustable needle point limiting device. According to the utility model, the adjustable needle head limiting device is arranged at one end of the syringe barrel through threads, and the needle point graduated scale is embedded in the external threads of the syringe barrel, so that the injection depth can be accurately controlled and can be adjusted as required.

Description

Injector capable of adjusting injection depth

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to an injector capable of adjusting injection depth.

Background

In medical research, researchers use syringes to inject drugs into laboratory animals, and the needles of the syringes are required to be inserted into the laboratory animals at a designated site by a certain depth and to inject a certain amount of drugs. Currently, researchers mostly use ordinary syringes and control the injection amount of medicine through a skilled injection operation, or use microinjectors for small and multiple injections, but the control of the injection depth can only be judged by naked eyes and experience. In order to ensure that the test results are as accurate as possible, a sufficient number of experimental animal individuals need to be arranged in one experimental group to prevent operation accidents during drug injection during medical research at present. Thus, improvements to existing syringes are needed.

Disclosure of Invention

The utility model provides the injector with adjustable injection depth for solving the technical problems in the prior art, which is convenient for controlling the injection depth and the injection quantity, effectively reduces operation accidents and further reduces the number of experimental animals.

The utility model comprises the following technical scheme: an injector with adjustable injection depth comprises a transparent injector cylinder body provided with scale marks, a push rod, an injector needle and an adjustable needle limiting device; the push rod is inserted into the syringe barrel, and a syringe needle and an adjustable needle limiting device are arranged at one end of the syringe barrel; the adjustable needle head limiting device is of a cylinder structure with internal threads, and the syringe cylinder body is provided with external threads matched with the internal threads; the needle point graduated scale is embedded in the external thread, and when the adjustable needle point limiting device covers a 0-scale line on the needle point graduated scale, the needle point of the syringe needle is flush with the edge of the adjustable needle point limiting device.

Further, a first liquid scale mark is arranged on the syringe barrel, and a 0 scale line of the first liquid scale mark is positioned above the external thread.

Further, a second liquid scale mark is arranged on the push rod; when the liquid is emptied, the 0 score line of the second liquid scale mark is flush with the 0 score line of the first liquid scale mark, and the injection quantity is more conveniently and accurately controlled by arranging the inner scale mark and the outer scale mark.

Furthermore, the syringe cylinder is made of glass or medical plastic, and other hard transparent materials can be selected.

Furthermore, the push rod is made of medical stainless steel or opaque medical plastic, and other hard opaque materials which are convenient for observing scales can be selected.

Further, the specification of the syringe barrel may be set to 5. Mu.L, 10. Mu.L, 20. Mu.L, 50. Mu.L, 100. Mu.L, 1mL, 10mL, or the like as required.

Further, the specification of the syringe needle can be set to 2-6cm according to the requirement.

The utility model has the advantages and positive effects that:

1. according to the utility model, the adjustable needle head limiting device is arranged at one end of the syringe barrel through threads, and the needle point graduated scale is embedded in the external threads of the syringe barrel, so that the injection depth can be accurately controlled and can be adjusted as required.

2. The liquid graduation marks are arranged on the syringe barrel and the push rod, and the injection quantity is more conveniently and accurately controlled by adopting the inner graduation mark and the outer graduation mark.

Drawings

Fig. 1 is a schematic view of the internal structure of the present utility model.

Fig. 2 is an enlarged partial schematic view of the male threaded portion of the syringe barrel.

Fig. 3 is a schematic view of the external structure of the present utility model.

In the figures, 1-syringe barrel; 101-external threads; 2-pushing rod; 3-syringe needle; 4-an adjustable needle stop; 401-internal threads; 5-a needle point graduated scale; 6-a first liquid scale mark; 7-second liquid graduation mark.

Detailed Description

In order to further disclose the inventive aspects, features and advantages of the present utility model, the following examples are set forth in detail below with reference to the accompanying drawings.

Examples: referring to fig. 1-3, an injector with adjustable injection depth comprises a transparent injector cylinder 1 provided with scale marks, a push rod 2, an injector needle 3 and an adjustable needle limiting device 4; the push rod 2 is made of medical stainless steel. The syringe cylinder 1 is made of medical plastic. The specification of the syringe barrel 1 may be set to 10mL as required. The specification of the syringe needle 3 is set to 4cm as required.

A push rod 2 is inserted into the syringe barrel 1, and a syringe needle 3 and an adjustable needle limiting device 4 are arranged at one end of the syringe barrel 1; the adjustable needle head limiting device 4 is of a cylindrical structure with an internal thread 401, and the syringe barrel 1 is provided with an external thread 101 matched with the internal thread 401; the needle point graduated scale 5 is embedded in the external thread 101, and when the adjustable needle point limiting device 4 covers the 0 score line on the needle point graduated scale 5, the needle point of the syringe needle 3 is flush with the edge of the adjustable needle point limiting device 4.

The syringe barrel 1 is provided with a first liquid scale mark 6, and a 0-scale line of the first liquid scale mark 6 is positioned above the external thread 101. Be equipped with second liquid scale mark 7 on the push rod 2, when the liquid evacuation, 0 scale mark parallel and level of 0 scale mark of second liquid scale mark 7 and first liquid scale mark 6, it is more convenient accurate control injection volume to set up inside and outside two-layer scale mark.

Although the preferred embodiments of the present utility model have been described, the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the appended claims. All of which are within the scope of the present utility model.

Claims

1. An injector with adjustable injection depth, characterized in that: comprises a transparent syringe barrel body provided with scale marks, a push rod, a syringe needle and an adjustable needle limiting device; the push rod is inserted into the syringe barrel, and a syringe needle and an adjustable needle limiting device are arranged at one end of the syringe barrel; the adjustable needle head limiting device is of a cylinder structure with internal threads, and the syringe cylinder body is provided with external threads matched with the internal threads; the needle point dividing ruler is embedded in the external thread, and when the adjustable needle point limiting device covers a 0 dividing line on the needle point dividing ruler, the needle point of the syringe needle is flush with the edge of the adjustable needle point limiting device; a first liquid scale mark is arranged on the syringe barrel, and a 0 score line of the first liquid scale mark is positioned above the external thread; the push rod is provided with a second liquid scale mark; when the liquid is emptied, the 0 score line of the second liquid scale mark is flush with the 0 score line of the first liquid scale mark, and the injection quantity is more conveniently and accurately controlled by arranging the inner scale mark and the outer scale mark.

2. An adjustable depth of injection syringe according to claim 1, wherein: the syringe cylinder is made of hard transparent materials.

3. An adjustable depth of injection syringe according to claim 1, wherein: the push rod is made of hard opaque materials.

4. An adjustable depth of injection syringe according to claim 1, wherein: the syringe barrel is set to 5. Mu.L, 10. Mu.L, 20. Mu.L, 50. Mu.L, 100. Mu.L, 1mL or 10mL as required.

5. An adjustable depth of injection syringe according to claim 1, wherein: the specification of the syringe needle is set to be 2-6cm according to the requirement.