CN214074550U - Livestock and poultry safety syringe - Google Patents

Abstract

The utility model discloses a livestock safety syringe, wherein a sliding sleeve parallel to a syringe barrel is arranged at the opposite end of an opening of the syringe barrel; the needle stem is connected with a moving disc at the opposite end of the needle tip; the needle stalk is inserted into the sliding sleeve, the needle point of the needle stalk is arranged outside the syringe barrel, and the movable disc is arranged inside the syringe barrel; a first spring is connected between the moving disc and the syringe barrel in an opposite direction; the fixed column of the syringe barrel is rotatably connected with the integrated pressing plate and the positioning plate, a second spring is arranged between the pressing plate and the syringe barrel, and the wide part of the positioning hole on the positioning plate is matched with the annular groove on the needle stem; a stopping disk is connected inside the syringe barrel, and a channel parallel to the longitudinal direction of the syringe barrel is contained in the stopping disk. The injector can lead the needle stem to automatically shrink into the injector after the hand of an operator is separated from the injector, thereby reducing the potential damage to tissues.

Description

Livestock and poultry safety syringe

Technical Field

The utility model relates to the field of medical equipment, in particular to poultry medical equipment field, concretely relates to beasts and birds safety syringe.

Background

If the medical care personnel shake hands or release the syringe barrel due to scare or other reasons or the patient is unstable, the syringe needle can move irregularly, the needle can damage the body, even puncture blood vessels, and damage periosteum. Children are more prone to such accidents than adults.

If the technology can actively avoid or reduce the damage of the needle point to the tissue when the medical staff for injection is in an unexpected condition, the medical safety can be greatly improved, but the effective report of the technology is not seen yet.

In particular, it is more likely that the needle tip will damage the animal's body due to the animal's wildness or susceptibility to startling without the veterinary injection of the drug.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a livestock and poultry safety syringe, which comprises a piston handle, a piston shaft, a piston, a syringe barrel and a needle stem;

the piston is inserted into the syringe barrel;

the open opposite end of the syringe barrel is provided with a sliding sleeve parallel to the syringe barrel;

the needle stem is fixedly or detachably connected with a movable disc at the opposite end of the needle point, the needle stem and the movable disc are relatively and vertically fixedly or detachably connected, and the movable disc is vertically vertical to the syringe barrel;

the needle stem is inserted into the sliding sleeve, the needle point of the needle stem is arranged outside the syringe barrel, and the moving disc is arranged inside the syringe barrel;

a first spring is fixedly connected or detachably connected between the movable disc and the syringe barrel in an opposite direction;

the side wall of the syringe barrel is provided with a fixing column; the syringe barrel is fixedly connected or detachably connected with the fixing column;

the injector also comprises a pressing plate and a positioning plate; the pressing plate and the positioning plate are vertically or nearly vertically fixedly connected or detachably connected;

the pressing plate is rotatably connected with the fixing column through a first rotating shaft;

the outer surface of the needle stem is provided with an annular groove; the depth of the annular groove is smaller than the thickness of the needle stem wall;

the positioning plate is provided with a positioning hole consisting of a hole wide part and a hole narrow part; the wide part of the hole is far away from the driving pressing plate; the width of the wide part of the hole is larger than the outer diameter of the needle stem; the width of the narrow hole part is larger than the diameter of the annular groove and smaller than the outer diameter of the needle stem;

a second spring is fixedly connected or detachably connected between the pressing disc and the syringe barrel in an opposite direction;

the interior of the syringe barrel is fixedly connected or detachably connected with a stopping disc.

In some embodiments, the piston shaft, and the piston are in turn fixedly connected or detachably connected.

In some embodiments, the piston and the syringe barrel are gas and liquid sealingly slidable relative to each other.

In some embodiments, one or more through holes are provided in the moving plate.

In some embodiments, the outer surface of the needle stem and the inner surface of the sliding sleeve are gas and liquid sealably slidable relative to each other.

In some embodiments, the stopping disk comprises one or more channels therein parallel to the longitudinal direction of the syringe barrel.

In some embodiments, the syringe further comprises a mounting block rotatably coupled to the syringe barrel by a second shaft.

In some embodiments, the fixation block is a rectangular parallelepiped.

In some embodiments, one direction of rotation of the fixing block is away from the free end of the pressing plate, and the other direction of rotation of the fixing block is partially inserted between the free end of the pressing plate and the syringe barrel.

In some embodiments, the syringe is transparent, opaque, translucent, or partially transparent.

The injector can lead the needle stem to automatically shrink into the injector after the hand of an operator is separated from the injector, thereby reducing the potential damage to tissues.

Drawings

Fig. 1 is a schematic sectional view of the livestock and poultry safety syringe according to embodiment 1, wherein the syringe shown in fig. 1 is transparent, translucent, opaque or partially transparent.

Fig. 2 is a sectional view of the positioning plate 14 in the direction of a-a in embodiment 1.

FIG. 3 is a schematic sectional view showing the positioning plate 14 in a depressed state A-A in the embodiment 1 (only a part of the parts are shown).

Fig. 4 is a schematic sectional view of the positioning plate 14 in the sprung state a-a in embodiment 1 (only some parts are shown).

Detailed Description

In order to describe the technical solutions of the present invention more clearly and intuitively and help understand the contribution of the present invention to the prior art, the present invention will be described in detail with reference to the accompanying drawings and embodiments.

Example 1

As shown in fig. 1-4, the safety syringe for livestock and poultry provided by the present invention comprises a piston handle 1, a piston shaft 2, a piston 3, a syringe barrel 4 and a needle stem 5;

the piston handle 1, the piston shaft 2 and the piston 3 are sequentially fixedly connected or detachably connected, the piston 3 is inserted into the syringe barrel 4, and the piston 3 and the syringe barrel 4 can slide relatively in a gas and liquid sealing manner;

the open opposite end of the syringe barrel 4 is provided with a sliding sleeve 8 parallel to the syringe barrel 4;

the needle stem 5 is fixedly connected or detachably connected with a movable disk 6 at the opposite end of the needle tip, the needle stem 5 and the movable disk 6 are vertically and fixedly connected or detachably connected relatively, and the movable disk 6 is vertically vertical to the syringe barrel 4;

one or more through holes 7 are arranged on the movable disc 6;

the needle stalk 5 is inserted into the sliding sleeve 8, the needle point of the needle stalk 5 is outside the syringe barrel 4, and the moving disk 6 is inside the syringe barrel 4; the outer surface of the needle stem 5 and the inner surface of the sliding sleeve 8 can slide in a gas and liquid tight manner relative to each other, the through hole 7 being such that when the moving disk 6 moves inside the syringe barrel 4, the liquid can flow freely in the through hole 7 without creating an obstacle;

a first spring 9 is fixedly or detachably connected between the movable disc 6 and the syringe barrel 4 in an opposite direction;

the side wall of the syringe barrel 4 is provided with a fixing column 15; the syringe barrel 4 is fixedly connected, integrally formed or detachably connected with the fixed column 15;

the injector also comprises a pressing plate 13 and a positioning plate 14;

the pressing plate 13 and the positioning plate 14 are vertically or nearly vertically fixedly connected or detachably connected;

the pressing plate 13 is rotatably connected with the fixed column 15 through a first rotating shaft 12;

the outer surface of the needle stem 5 is provided with an annular groove 17; the depth of the annular groove 17 is less than the wall thickness of the needle stem 5;

the positioning plate 14 is provided with a positioning hole consisting of a wide hole part 18 and a narrow hole part 19;

the hole wide portion 18 is away from the pressing plate 13;

the width of the hole wide part 18 is larger than the outer diameter of the needle stem 5;

the width of the narrow hole part 19 is larger than the diameter of the annular groove 17 and smaller than the outer diameter of the needle stem 5; a second spring 16 is fixedly or detachably connected between the pressing plate 13 and the syringe barrel 4 in an opposite direction; the second spring 16 is in a compressed state. A stopping disk 10 is fixedly or detachably connected inside the syringe barrel 4, and one or more channels 11 parallel to the longitudinal direction of the syringe barrel 4 are contained in the stopping disk 10, and the channels 11 allow the free circulation of liquid.

The blocking disk 10 can prevent the piston 3 from sliding in the syringe barrel 4 beyond the position of the moving disk 6 in the relaxed state of the first spring 9, and on the other hand, the needle tip can be retracted when the needle stem 5 is retracted into the syringe barrel 4 by blocking the moving disk 6.

The injector also comprises a fixed block 20, and the fixed block 20 is rotatably connected with the injector barrel 4 through a second rotating shaft 21; one direction of rotation of the fixed block 20 is spaced apart from the free end of the pressing plate 13, and the other direction of rotation of the fixed block 20 is partially inserted between the free end of the pressing plate 13 and the syringe barrel 4. The fixing block 20 may be a rectangular parallelepiped.

The working mode of the injector is as follows:

as shown in fig. 1-3, the pressing plate 13 is pressed down to make the annular groove 17 fit with the narrow hole portion 19, the narrow hole portion 19 restrains the needle stem 5 to be relatively fixed in the longitudinal direction of the syringe barrel 4, the first spring 9 and the second spring 16 are both in a compressed state, and the operator presses the pressing plate 13 with hands to operate the syringe according to a common method to perform operations such as regular injection.

When a hand falls off from the pressing plate 13, as shown in fig. 1, 2 and 4, the pressing plate 13 is pressed by the relaxation action of the second spring 14, so that the positioning plate 14 moves towards the direction far away from the needle stem 5, the hole width part 18 corresponds to the position of the needle stem 5, the hole width part 19 cannot limit the annular groove 17, the moving disc 6 moves towards the opening end of the syringe barrel 4 under the relaxation action of the first spring 9, the moving disc 6 drives the needle stem 5 to contract towards the inside of the syringe barrel 4, and the possibility that the needle point of the needle stem 5 is damaged on a machine body is greatly reduced by the contraction action of the needle stem 5 at the moment.

When the annular groove 17 is matched with the narrow hole part 19, the fixing block 20 is rotated to enable the edge of the fixing block to be inserted between the free end of the pressing plate 13 and the syringe barrel 4, and the function of whether the adjusting hand of the limiting plate 13 is pressed or not is shielded, so that the syringe is used as a common syringe.

When the injection operation is not needed for preparing the liquid medicine, the fixed block 20 indirectly prevents the movable disc 6 from driving the needle stem 5 to move, and the burden of an operator can be reduced.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that certain changes and modifications may be made to the invention in its general spirit and scope. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. A livestock and poultry safety syringe is characterized in that: the injector comprises a piston handle (1), a piston shaft (2), a piston (3), an injector cylinder (4) and a needle stem (5);

the piston (3) is inserted into the syringe barrel (4);

the open opposite end of the syringe barrel (4) is provided with a sliding sleeve (8) which is parallel to the syringe barrel (4);

the needle stem (5) is fixedly connected or detachably connected with a movable disc (6) at the opposite end of the needle tip, the opposite end of the needle tip of the needle stem (5) penetrates through the movable disc (6) to be arranged, the needle stem (5) and the movable disc (6) are vertically fixedly connected or detachably connected relatively, and the movable disc (6) is vertical to the syringe barrel (4) in the longitudinal direction;

the needle stalk (5) is inserted into the sliding sleeve (8), the needle point of the needle stalk (5) is outside the syringe barrel (4), and the moving disk (6) is inside the syringe barrel (4);

a first spring (9) is fixedly connected or detachably connected between the movable disc (6) and the syringe barrel (4) in an opposite direction;

a fixing column (15) is arranged on the side wall of the syringe barrel (4); the syringe barrel (4) is fixedly connected or detachably connected with the fixing column (15);

the injector also comprises a pressing plate (13) and a positioning plate (14); the pressing plate (13) and the positioning plate (14) are vertically or nearly vertically fixedly connected or detachably connected;

the pressing plate (13) and the fixing column (15) are rotatably connected through a first rotating shaft (12);

the outer surface of the needle stem (5) is provided with an annular groove (17); the depth of the annular groove (17) is less than the wall thickness of the needle stem (5);

the positioning plate (14) is provided with a positioning hole consisting of a wide hole part (18) and a narrow hole part (19); the hole wide part (18) is far away from the driving pressing plate (13); the width of the hole wide part (18) is larger than the outer diameter of the needle stem (5); the width of the narrow hole part (19) is larger than the diameter of the annular groove (17) and smaller than the outer diameter of the needle stem (5);

a second spring (16) is fixedly connected or detachably connected between the pressing plate (13) and the syringe barrel (4) in an opposite direction;

the interior of the syringe barrel (4) is fixedly or detachably connected with a stopping disc (10).

2. The livestock and poultry safety syringe according to claim 1, characterized in that:

the piston handle (1), the piston shaft (2) and the piston (3) are sequentially fixedly connected or detachably connected.

3. The livestock and poultry safety syringe according to claim 1, characterized in that:

the piston (3) and the syringe barrel (4) can slide in a gas-and liquid-tight manner relative to each other.

4. A livestock safety syringe of claim 1, wherein:

one or more through holes (7) are arranged on the moving disc (6).

5. A livestock safety syringe of claim 1, wherein:

the outer surface of the needle stem (5) and the inner surface of the sliding sleeve (8) can slide in a gas-and liquid-tight manner.

6. A livestock safety syringe of claim 1, wherein:

one or more channels (11) are contained in the stopping disk (10) parallel to the longitudinal direction of the syringe barrel (4).

7. A livestock safety syringe according to any of claims 1-6, characterized in that:

the injector also comprises a fixed block (20), and the fixed block (20) is rotatably connected with the injector barrel (4) through a second rotating shaft (21).

8. An animal safety syringe as defined in claim 7 wherein:

the fixed block (20) is a cuboid.

9. An animal safety syringe as defined in claim 7 wherein:

one direction of the rotation of the fixed block (20) is far away from the free end of the pressing plate (13), and the other direction of the rotation of the fixed block (20) is partially inserted between the free end of the pressing plate (13) and the driving syringe barrel (4).

10. A livestock safety syringe according to any of claims 1-6, characterized in that:

the syringe is transparent or opaque.

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