CN221431787U - A needle-type anesthetic drug injector - Google Patents

Abstract

The utility model relates to the technical field of medical devices, in particular to a needled anesthetic drug injector. Its technical scheme includes cylinder, stay cord, sleeve pipe, sleeve and locating strip, the cylinder outer wall has cup jointed the sleeve, the inside depression bar that is provided with of cylinder, the depression bar lower extreme is provided with the piston, the cylinder lower extreme is provided with the syringe needle, the sleeve pipe upper end is provided with the spring, the stop collar is installed to the inside embedding of sleeve, the inside slip grafting of stop collar has the locating strip, the elastic component has been cup jointed to the locating strip outer wall, the locating hole has been seted up to sleeve pipe one end inside, locating strip one end is provided with the stay cord. According to the utility model, the needle head protecting device and the needle cylinder are elastically connected into a whole, and the needle head protecting device does not need to be taken out and stored independently, so that the loss is avoided, and the needle head can be shielded and protected through the movement of the sleeve, thereby being more convenient and faster.

Description

A needle-type anesthetic drug injector

Technical Field

The utility model relates to the technical field of medical devices, in particular to an acupuncture type anesthetic drug injector.

Background technique

An acupuncture injector is a device used to inject liquid medicine or other substances. It consists of a needle and a syringe. The device introduces anesthetic drugs directly into the body by injection by inserting the needle into the skin or other tissue.

In order to protect the needle, a protective needle sleeve is placed on the outside of the needle. However, since the needle sleeve has no fixed storage position, it is easy to be forgotten or accidentally dropped, which increases the inconvenience during use. Therefore, we propose an acupuncture anesthetic injector to solve the existing problem.

Utility Model Content

The utility model aims to solve the problems existing in the background technology and proposes an acupuncture type anesthetic drug injector.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an acupuncture anesthetic injector, comprising a syringe, a pull rope, a sleeve, a sleeve and a positioning strip, the outer wall of the syringe is sleeved with a sleeve, a pressure rod is arranged inside the syringe, a piston is arranged at the lower end of the pressure rod, a needle is arranged at the lower end of the syringe, a spring is arranged at the upper end of the sleeve, a limiting sleeve is embedded and installed inside the sleeve, a positioning strip is slidably inserted inside the limiting sleeve, an elastic part is sleeved on the outer wall of the positioning strip, a positioning hole is opened inside one end of the sleeve, and a pull rope is arranged at one end of the positioning strip.

When using the acupuncture anesthetic injector in the present scheme, before use, pull down the sleeve and pull the pull ring at the same time. When the positioning hole corresponds to the positioning strip, the positioning strip is inserted into the positioning hole, and the sleeve is fixed by squeezing the elastic member. The sleeve shields the needle. When in use, pull the pressure handle to pull the pressure rod, extract the anesthetic liquid through the needle piston, insert the needle into the anesthesia position, and squeeze the piston to inject the anesthetic. During this process, the sleeve is located inside the sleeve by the elastic pulling of the spring.

Preferably, a pressure handle is provided at the upper end of the pressure rod, and the piston is slidably mounted inside the syringe. The pressure handle is used for applying force with fingers, and the movement of the piston forms positive pressure or negative pressure inside the needle.

Preferably, the upper end of the sleeve is located inside the lower end of the sleeve, and the sleeve moves inside the sleeve.

Preferably, the upper end of the spring is connected to the inner wall of the upper end of the sleeve. The sleeve is elastically connected to the sleeve through the spring.

Preferably, the outer wall of the positioning strip is sleeved with a limiting block, and the two ends of the elastic member are respectively connected to the limiting block and the inner wall of the sleeve. The limiting block supports the elastic member, and the elastic supporting force applied by the elastic member acts on the positioning strip.

Preferably, one end of the positioning bar is inserted into the positioning hole, and both sides of the lower end of the sleeve are provided with limiting rods. When the positioning bar is connected to the positioning hole, the sleeve is fixed, and the limiting rod is convenient for applying force to the longitudinal movement of the sleeve.

Preferably, a pull ring is provided at one end of the pull rope, and the outer wall of the sleeve is sleeved with equally spaced travel sleeves, and the pull rope is slidably inserted into the travel sleeve. The pull rope is limited by the travel sleeve, and the pull ring is convenient for applying force to the pull rope, and the exchange is placed on one side of the upper end of the sleeve for easy use. The pull rope is used to pull the positioning bar.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model provides a sleeve on the outside of the syringe, the sleeve is elastically connected to the sleeve, the sleeve is clamped by an elastic member, the needle is shielded when clamped, and the exposed needle is stored when the clamping is cancelled, the needle is shielded and protected, and the possibility of damage or contamination of the needle during storage and carrying is reduced. The sleeve is always integrated with the injection device and does not need to be taken out and stored separately, which is more convenient and quick.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the main cross-sectional structure of the utility model;

FIG2 is a schematic diagram of the main structure of the utility model;

FIG3 is a schematic diagram of an enlarged main cross-sectional view of the positioning strip in FIG1 of the present invention.

Figure numerals: 1. pressing handle; 2. pull ring; 3. cartridge; 4. pull rope; 5. spring; 6. sleeve; 7. limit rod; 8. needle; 9. piston; 10. pressing rod; 11. sleeve; 12. limit sleeve; 13. positioning strip; 14. elastic member; 15. limit block; 16. positioning hole.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Embodiment 1

As shown in Figures 1-3, the utility model proposes an acupuncture anesthetic injector, which includes a syringe 3, a pull rope 4, a sleeve 6, a sleeve 11 and a positioning strip 13. The outer wall of the syringe 3 is sleeved with the sleeve 11, and a pressure rod 10 is arranged inside the syringe 3. The upper end of the pressure rod 10 is provided with a pressure handle 1, and the lower end of the pressure rod 10 is provided with a piston 9. The piston 9 is slidably installed inside the syringe 3, and a needle 8 is arranged at the lower end of the syringe 3. The upper end of the sleeve 6 is located inside the lower end of the sleeve 11, and the upper end of the sleeve 6 is provided with a spring 5, and the upper end of the spring 5 is connected to the inner wall of the upper end of the sleeve 11.

Based on the implementation steps of Example 1: the piston 9 draws the anesthetic solution, the needle 8 is inserted into the anesthesia position, and the piston 9 is squeezed to inject the anesthetic. During this process, the sleeve 6 is pulled elastically by the spring 5 and is located inside the sleeve 11 to ensure the use of the needle 8.

Embodiment 2

As shown in Figures 1-3, the utility model proposes an acupuncture anesthetic injector. Compared with the first embodiment, this embodiment also includes: a limiting sleeve 12 is embedded and installed inside the sleeve 11, a positioning strip 13 is slidably inserted inside the limiting sleeve 12, an elastic member 14 is sleeved on the outer wall of the positioning strip 13, a limiting block 15 is sleeved on the outer wall of the positioning strip 13, and the two ends of the elastic member 14 are respectively connected to the limiting block 15 and the inner wall of the sleeve 11, a positioning hole 16 is opened inside one end of the sleeve 6, one end of the positioning strip 13 is inserted into the positioning hole 16, limiting rods 7 are arranged on both sides of the lower end of the sleeve 6, a pull rope 4 is arranged at one end of the positioning strip 13, a pull ring 2 is arranged at one end of the pull rope 4, and the outer wall of the sleeve 11 is sleeved with equidistantly distributed travel sleeves 17, and the pull rope 4 is slidably inserted into the travel sleeve 17.

In this embodiment, before use, the sleeve 6 is pulled down and the pull ring 2 is pulled at the same time. When the positioning hole 16 corresponds to the positioning strip 13, the positioning strip 13 is inserted into the positioning hole 16. The sleeve 6 is fixed by the extrusion of the elastic member 14. The sleeve 6 shields the needle 8 and protects the needle 8, while preventing the loss of the sleeve 6, the protective device of the needle 8.

The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims (7)

1. An acupuncture anesthetic injector, comprising a syringe (3), a drawstring (4), a sleeve (6), a sleeve (11) and a positioning strip (13), characterized in that: the outer wall of the syringe (3) is sleeved with the sleeve (11), a pressure rod (10) is arranged inside the syringe (3), a piston (9) is arranged at the lower end of the pressure rod (10), a needle (8) is arranged at the lower end of the syringe (3), a spring (5) is arranged at the upper end of the sleeve (6), a limiting sleeve (12) is embedded and installed inside the sleeve (11), a positioning strip (13) is slidably inserted inside the limiting sleeve (12), an elastic member (14) is sleeved on the outer wall of the positioning strip (13), a positioning hole (16) is opened inside one end of the sleeve (6), and a drawstring (4) is arranged at one end of the positioning strip (13). 2. An acupuncture anesthetic injector according to claim 1, characterized in that: a pressing handle (1) is provided at the upper end of the pressing rod (10), and the piston (9) is slidably installed inside the syringe (3). 3. An acupuncture anesthetic injector according to claim 1, characterized in that the upper end of the sleeve (6) is located inside the lower end of the sleeve (11). 4. The acupuncture anesthetic injector according to claim 1, characterized in that the upper end of the spring (5) is connected to the inner wall of the upper end of the sleeve (11). 5. An acupuncture anesthetic injector according to claim 1, characterized in that: the outer wall of the positioning strip (13) is sleeved with a limit block (15), and the two ends of the elastic member (14) are respectively connected to the limit block (15) and the inner wall of the sleeve (11). 6. An acupuncture anesthetic injector according to claim 1, characterized in that one end of the positioning strip (13) is inserted into the positioning hole (16), and limiting rods (7) are provided on both sides of the lower end of the sleeve (6). 7. An acupuncture anesthetic injector according to claim 1, characterized in that: a pull ring (2) is provided at one end of the pull rope (4), the outer wall of the sleeve (11) is sleeved with equidistantly distributed travel sleeves (17), and the pull rope (4) is slidably inserted into the interior of the travel sleeve (17).