CN221181235U - Double-layer injector convenient to operate and use - Google Patents

Abstract

The utility model relates to the technical field of syringes and discloses a double-layer syringe convenient to operate and use, which comprises a holding cylinder, an inner sleeve, a plug, a rubber plug, a core bar, a limiting ring, a cylinder head and a core bar positioning plate, wherein the inner sleeve is of a hollow cylindrical shape in the center; the holding cylinder consists of a cylindrical sleeve at the upper part and a conical sleeve at the lower part, wherein the bottom end of the cylindrical sleeve and the top end of the conical sleeve are integrally formed, and the cylindrical sleeve is positioned at the outer side of the inner sleeve. The utility model can simultaneously realize convenient hand-held operation and accurate injection with small dosage.

Description

Double-layer injector convenient to operate and use

Technical Field

The utility model relates to the technical field of syringes, in particular to a double-layer syringe convenient to operate and use.

Background

Syringes are common medical devices that typically consist of a barrel with a small bore at the front end and a matching plunger rod for injection of liquids or gases. Most of the existing syringes are manual syringes, which are manually operated in use and are operated by pushing and pulling a core rod.

Syringes commonly used in the prior art have various capacities such as 1ml, 2ml, 5ml, 10ml, 20ml, 30ml, 50ml, 60ml, etc. Syringes of different injection capacities have different outer diameters, such as 1ml syringes, which are typically 5-7 mm in outer diameter; a 2ml syringe, the outer diameter of which is typically 8-10 mm; a 10ml syringe, the outer diameter of which is typically 16-18 mm; a20 ml syringe, the outer diameter of which is typically 20 to 22mm; the outer diameter of a 50ml syringe is typically 30 to 32mm. The syringes with different outer diameters have larger difference between the flexibility and the operation convenience of the injection operation of doctors, and are inconvenient to operate and use due to the fact that the diameter is too small and the diameter is too large.

In the prior art, when a doctor performs small-dose injection such as retinal injection, subcutaneous injection and the like, the doctor can only select a 1ml syringe due to small injection dose, and the external diameter of the syringe is too small, so that the operation is inconvenient; if a large-dose injector is selected, the injector is convenient to hold, and the injection speed is not convenient to control accurately.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model aims to provide a double-layer injector which is convenient to operate and use, and can simultaneously realize convenient hand-held operation and accurate injection with small dosage.

The utility model is realized by adopting the following technical scheme: a dual layer syringe for ease of operation, comprising: the novel plastic bottle comprises a holding barrel, an inner sleeve, a plug, a rubber plug, a core rod, a limiting ring, a barrel head and a core rod locating plate, wherein the inner sleeve is of a cylindrical shape with a hollow center, the plug is fixed at the bottom end of the core rod, the limiting ring is arranged at the top of the core rod, the rubber plug is sleeved outside the plug, the rubber plug is arranged in the inner sleeve through interference fit, the barrel head is arranged at the center of the bottom of the inner sleeve, the core rod locating plate is arranged outside the top of the inner sleeve, the holding barrel is arranged outside the outer sleeve in a surrounding mode, the top of the holding barrel is arranged at the lower end of the core rod locating plate, and the lower portion of the holding barrel is connected with the bottom end of the inner sleeve.

Further, the holding cylinder comprises a cylindrical sleeve at the upper part and a conical sleeve at the lower part, wherein the bottom end of the cylindrical sleeve and the top end of the conical sleeve are integrally formed, the cylindrical sleeve is positioned at the outer side of the inner sleeve, and the bottom end of the conical sleeve is attached to the outer side of the bottom end of the inner sleeve.

Further, a plurality of sleeve connecting pieces are further arranged between the inner wall of the holding cylinder and the outer wall of the inner sleeve, and a sleeve cavity is formed between the inner wall of the holding cylinder and the outer wall of the inner sleeve.

Further, the sleeve connecting piece is a connecting ring or a connecting rod.

Further, the holding cylinder is made of transparent materials.

Further, scales are arranged on the holding cylinder at equal intervals in the vertical direction, and the scales are volume scales of the inner sleeve.

Compared with the prior art, the utility model has the beneficial effects that: the double-layer injector convenient to operate and use is characterized in that the holding cylinder is arranged on the outer side of the inner sleeve, the inner sleeve is small in diameter and is used for loading injection solution, and the holding cylinder is large in diameter, so that a doctor can conveniently hold the injector by hand, and the injector can simultaneously realize convenient holding operation and accurate small-dose operation when small-dose injection is carried out, and is convenient to use.

Drawings

FIG. 1 is a cross-sectional view of the present utility model;

Fig. 2 is a front view of the present utility model.

In the figure: 2. a holding cylinder; 11. an inner sleeve; 12. a plug head; 13. a rubber plug; 14. a core bar; 15. a limiting ring; 16. a cartridge head; 21. a cylindrical sleeve; 22. a conical sleeve; 23. a core bar positioning plate; 24. a sleeve connection; 25. a sleeve cavity.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

The utility model aims at overcoming the defects of the prior art and provides a double-layer syringe which is convenient to operate and use.

Example 1

This embodiment provides a dual syringe for convenient operation and use, as shown with reference to fig. 1 and 2, comprising: the novel syringe comprises a holding cylinder 2, an inner sleeve 11, a plug 12, a rubber plug 13, a core rod 14, a limiting ring 15, a cylinder head 16 and a core rod positioning plate 23, wherein the inner sleeve 11 is of a cylindrical shape with a hollow center, the inner sleeve 11 is made of transparent materials, the plug 12 is fixed at the bottom end of the core rod 14, the limiting ring 15 is arranged at the top of the core rod 14, the rubber plug 13 is sleeved outside the plug 12, the rubber plug 13 is arranged in the inner sleeve 11 through interference fit, the cylinder head 16 is arranged at the center of the bottom of the inner sleeve 11, the core rod positioning plate 23 is arranged outside the top of the inner sleeve 11, and the structure is the structure of the syringe in the prior art. The holding cylinder 2 is arranged on the outer side of the inner sleeve 11 in a surrounding manner, the holding cylinder 2 is used for holding operation by a doctor, the top of the holding cylinder 2 is arranged at the lower end of the core bar positioning plate 23, and the lower part of the holding cylinder 2 is connected with the bottom end of the inner sleeve 11. The holding cylinders 2 are made of transparent materials, and scales (not shown in the figure) are arranged at equal intervals in the vertical direction on the holding cylinders 2, the scales are volume scales of the inner sleeve 11, and the volume of the solution in the inner sleeve 11 can be read through the scale marks.

Specifically, referring to fig. 1, a dual-layer injector for convenient operation in this embodiment, the holding barrel 2 is composed of a cylindrical sleeve 21 located at the upper part and a conical sleeve 22 located at the lower part, wherein the bottom end of the cylindrical sleeve 21 and the top end of the conical sleeve 22 are integrally formed, the cylindrical sleeve 21 is located at the outer side of the inner sleeve 11, the bottom end of the conical sleeve 22 is attached to the outer side of the bottom end of the inner sleeve 11, so that the diameter of the upper part of the holding barrel 2 is large, the diameter of the lower part is small, the diameter of the cylindrical sleeve 21 is larger than the diameter of the inner sleeve 11, the outer diameter of the cylindrical sleeve 21 is 12-30 mm, preferably, the outer diameter of the cylindrical sleeve 21 is 25mm, so that a doctor can hold the injector more conveniently in small-dose injection, thus solving the problem that in the prior art, when carrying out small-dose injection operation of less than 1ml, only a small-dose injector can be used, but the outer diameter of the small-dose injector is very small, usually only about 10mm, and if the injector with larger outer diameter is used, such as 20mm, the injector with larger outer diameter is inconvenient to hold the injector, the doctor can hold the injector with accurate and small-dose injection with accurate hand.

Preferably, referring to fig. 1, a plurality of sleeve connectors 24 are further disposed between the inner wall of the holding barrel 2 and the outer wall of the inner sleeve 11, a sleeve cavity 25 is formed between the inner wall of the holding barrel 2 and the outer wall of the inner sleeve 11, and the sleeve connectors 24 are connecting rings or connecting rods for improving the connection strength between the holding barrel 2 and the inner sleeve 11.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. A dual layer syringe for ease of use, comprising: hold section of thick bamboo (2), inner skleeve (11), chock plug (12), plug (13), core bar (14), spacing ring (15), barrel head (16) and core bar locating plate (23), inner skleeve (11) be central hollow cylindrical, chock plug (12) fix in the bottom of core bar (14), spacing ring (15) set up the top at core bar (14), plug (13) cover establish in the outside of chock plug (12), plug (13) set up in inner skleeve (11) through interference fit, barrel head (16) set up in the bottom central authorities of inner skleeve (11), core bar locating plate (23) set up in the top outside of inner skleeve (11), the outside of inner skleeve (11) is enclosed to set up in holding section of thick bamboo (2), the top of holding section of thick bamboo (2) is being located the lower extreme of core bar locating plate (23), the lower part of holding section of thick bamboo (2) is connected with the bottom of inner skleeve (11).

2. The dual layer syringe for easy operation as defined in claim 1, wherein: the holding cylinder (2) consists of a cylindrical sleeve (21) positioned at the upper part and a conical sleeve (22) positioned at the lower part, wherein the bottom end of the cylindrical sleeve (21) and the top end of the conical sleeve (22) are integrally formed, the cylindrical sleeve (21) is positioned at the outer side of the inner sleeve (11), and the bottom end of the conical sleeve (22) is attached to the outer side of the bottom end of the inner sleeve (11).

3. The dual layer syringe for easy operation as set forth in claim 2, wherein: a plurality of sleeve connecting pieces (24) are further arranged between the inner wall of the holding cylinder (2) and the outer wall of the inner sleeve (11), and a sleeve cavity (25) is formed between the inner wall of the holding cylinder (2) and the outer wall of the inner sleeve (11).

4. A dual layer syringe for ease of handling as set forth in claim 3 wherein: the sleeve connecting piece (24) is a connecting ring.

5. A dual layer syringe for ease of handling as set forth in claim 3 wherein: the sleeve connecting piece (24) is a connecting rod.

6. The ease of use dual layer syringe of any one of claims 1-5 wherein: the holding cylinder (2) is made of transparent materials.

7. The ease of use dual layer syringe of claim 6 wherein: the holding cylinder is provided with scales at equal intervals in the vertical direction, and the scales are volume scales of the inner sleeve (11).