JPH10216160A - Injector for animal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture an injector by simple processes, and also, surely pierce the injector needle into the body of an animal, and inject a chemical. SOLUTION: This injector for animal, in order to inject a chemical, etc., in the body of an animal, is constituted of a cylindrical body 2 having an injection hole 23, a chemical chamber 21 which is formed between the injection hole 23 and a movable plug 24 by arranging the movable plug 24 in the cylindrical body 2, a gas chamber 22 which is formed between the movable plug 24 and a fixed plug 25 by arranging the fixed plug 25 at the rear end of the cylindrical body 2, a seal material 4 to seal the injection hole 23 of the cylindrical body 2, and an injection needle 3 which is attached while pinching the seal material 4 on the injection hole 23, and a wire 5 for breaking is arranged in the injection needle 3, and the seal material 4 is made breakable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an animal syringe.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conventional animal syringe a for use in administering a medicinal solution such as an anesthetic to a savage beast is composed of a medicinal solution partitioned by a slidable stopper c in a cylinder b of the syringe. It is known that a chamber d and a gas chamber e are provided, an opening g1 is formed in the middle of a syringe needle g whose tip is closed by a plug f, and the opening g1 is covered with a rubber ring h and closed. In the case of this syringe a, when the needle g of the syringe a fired by a blow arrow or the like penetrates the skin of the animal through the skin, the injection needle g
The ring h attached to slides on the skin of the animal and does not enter the body. From the opening g1 of the injection needle g opened by the slide of the ring h, the liquid medicine in the liquid medicine chamber d pushed out by the gas pressure in the gas chamber e is injected into the animal body.

[0003]

The above-mentioned conventional animal syringe has the following problems. <A> The injection needle requires two detailed operations, a step of closing the tip and a step of opening an opening on the way, and is extremely time-consuming to process. <B> Since the tip of the injection needle is closed, unless the needle is firmly fixed to the cylindrical body, only the injection needle is pushed out by the chemical solution ejected by the pressure of the gas, which is extremely dangerous. <C> Since the rubber ring is attached to close the opening formed in the injection needle, this becomes a resistance to piercing, and it is difficult for the injection needle to penetrate deeply into the body of the animal. Therefore, the drug solution cannot be sufficiently injected into the animal body. <D> In addition, since the opening for injecting the drug solution is formed on the side of the injection needle, when the injection needle does not reliably penetrate the animal body (for example, a state where it is lightly pierced into the skin). In such a case, the drug solution cannot be sufficiently injected into the body of the animal.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to make it possible to manufacture the device by a simple process, and to pierce the body of an animal with an injection needle without fail. An object of the present invention is to provide a veterinary syringe which can be injected.

[0005]

According to the present invention, there is provided an animal injector for injecting a drug solution or the like into an animal body, comprising: a cylinder having an injection hole; A liquid medicine chamber formed between the movable stopper, a fixed stopper provided at the rear end of the cylinder, a gas chamber formed between the movable stopper and the stopper, and a sheet for sealing an injection hole of the cylinder. A veterinary syringe, comprising a material and an injection needle attached to the injection hole while sandwiching a sheet material, wherein a breaking wire is arranged in the injection needle, and the seal material is breakable. . Further, the present invention is the above-mentioned animal syringe, wherein the entire length of the breaking wire is longer than the injection needle, and is configured to protrude from the tip of the injection needle. In the present invention, the above-described veterinary syringe may further include a stopper portion for preventing the breakage wire from dropping off on the way of the breakage wire located in the space formed in the connection portion between the injection needle and the injection hole of the cylindrical body. An animal syringe characterized by being formed. Furthermore, the present invention is characterized in that in any of the above-mentioned animal syringes, the breaking wire is configured to break the sheet material closing the injection hole when the injection needle collides with the animal body. , An animal syringe.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An animal injector according to the present invention will be described below with reference to the drawings.

<A> Overall Configuration As shown in FIG. 1, an animal injection needle 1 is composed of a cylindrical body 2, an injection needle 3, a sealing material 4, and a breaking wire 5.

<B> Cylindrical Body The cylindrical body 2 is a main body of the animal syringe 1, and the inside thereof is partitioned into a drug solution chamber 21 and a gas chamber 22. Cylinder 2
Is manufactured by processing an ordinary syringe. The processing at this time refers to cutting off the finger hook at the end of the syringe and cutting off the rubber stopper at the tip of the piston.

Chemical liquid chamber The chemical liquid chamber 21 is a chamber provided on the side of the injection hole 23 of the cylindrical body 2 and is a chamber for storing a chemical liquid such as an anesthetic. The chemical chamber 21 and a gas chamber 22 described later are separated by a movable stopper 24. As the movable stopper 24, a known member that is confidential and slidable when placed in the cylindrical body 2 can be used. For example, a rubber stopper cut from the tip of a piston of a syringe can be used. . When the rubber stopper of the piston of the syringe is used as the movable stopper 24, in order to maintain the shape of the rubber stopper, the tip of the push rod for joining the rubber stopper and the piston is cut off while being fitted to the rubber stopper.

Gas Chamber The gas chamber 22 is a chamber located at the rear end of the cylinder 2 and located behind the chemical liquid chamber 21 and is a chamber for storing gas for ejecting a chemical liquid. As described above, the chemical solution chamber 21 and the gas chamber 22 are separated by the movable stopper 24, and the closing means of the opening behind the gas chamber 22 will be described. It is conceivable that a fixed plug 25 is fitted into the opening behind the gas chamber 22. As the fixed plug 26, a known member capable of tightly closing the opening can be adopted. It is conceivable to use a rubber stopper of the piston. It is conceivable that the fixed stopper 25 is provided with a wing string 26 for maintaining the directivity of the animal syringe 1 in order to fly it straight. The blade string 26 is disposed by inserting its end into a hole formed by removing a push rod of the piston from the rear end of the rubber plug of the piston which is the fixing plug 25. Then, it is conceivable that a fixing rod 27 (for example, an injection needle or the like can be employed) made of a known material is pushed in from the outer peripheral surface of the cylinder 2 to fix the blade string 26 together with the fixing plug 25 to the cylinder 2. At this time, if the fixing rod 27 is stopped in a cross shape, the fixing plug 25 can be fixed with the fixing plug 25 sufficiently adhered to the inner wall of the cylindrical body 2.

<C> Injection Needle The injection needle 3 does not require any special processing, and can be a needle attached to an ordinary syringe. The ordinary injection needle 3 here refers to one having a connection portion 32 at the rear end of the needle 31 for connecting to the injection hole 23 of the cylindrical body 2, and as shown in FIG. A space having a diameter larger than the inner diameter of the needle hole 33 is formed.

<D> Sealing Material The sealing material 4 is a sheet made of a known non-water-permeable material such as resin. The sealing material 4 is a member that serves as a lid of the injection hole 23 of the cylinder 2 after storing the drug solution in the drug solution chamber 21 of the cylinder 2. The sealing material 4 is disposed between the injection hole 23 of the cylindrical body 2 and the connection part 32 of the injection needle 3 so as to seal the injection hole 23. Thereby, even when gas is injected into the gas chamber of the cylinder 2, the drug solution in the drug solution chamber 21 is filled with the injection hole 23.
No more leakage. Note that the sheet material 4 may be a flat material having flexibility, or the injection hole 2 of the cylindrical body 2 may be previously formed.
A material formed in the shape of No. 3 may be used.

<E> Wire for Breaking The wire for breaking 5 is a member for breaking the above-mentioned sealing material 4 and is a member made of a known material such as stainless steel. The breaking wire 5 is a member disposed so as to communicate with the inside of the needle hole 33 of the injection needle 3.
By making the inside diameter sufficiently smaller (preferably about 0.4 mm), the permeability of the drug solution is kept good. A stopper portion 5 formed by bending the wire in a circular shape is provided on the cylindrical body 2 side of the breaking wire 5.
1 is formed. The stopper portion 51 is provided for the injection needle 3
And prevents the breaking wire 5 from dropping out of the needle hole 33 of the injection needle 3. As shown in FIG. 2, the entire length of the breaking wire 5 is longer than the needle 31 of the injection needle 3,
When it is arranged in the needle hole 33 of the injection needle 3, the stopper 51
Is set so as to protrude from the tip of the injection needle 3 by a while staying at the connection part 32. Projection length a of the wire rod described above
Is a length corresponding to the slide length b sufficient for the wire at the tip of the stopper portion 51 to break the sheet material 4 when the wire is pushed. The stopper 51 formed in the middle of the breaking wire 5 may be formed by bending the wire, or by attaching a member larger than the needle hole 33 of the injection needle 3, for example. In this case, it is important to ensure sufficient passage of the chemical solution so that the stopper portion 51 does not block the needle hole 33.

[0014]

[Method of Use] The method of using the animal syringe of the present invention will be described below.

<A> Filling the Chemical Solution Room with the Chemical Solution When using the syringe for animals, it is necessary to prepare for filling the chemical solution room of the cylindrical body with the chemical solution and the gas chamber with the gas. First, when filling the liquid medicine, the injection needle is removed from the cylinder, and the required amount of liquid medicine is filled into the liquid medicine chamber from the injection hole. At this time, the position of the movable stopper in the cylindrical body can be adjusted by inserting a known syringe from the fixed stopper and sliding by increasing or decreasing the air inside the gas chamber, or by directly pushing out the movable stopper with a needle point. Conceivable.

<B> Attaching of Wire for Breaking and Sheet Material Subsequently, the injection hole of the drug solution chamber (cylindrical body) filled with the drug solution is sealed to prevent the drug solution from leaking. In the injection hole, a sheet material is covered and arranged so as to be hermetically sealed, an injection needle is attached from above, and is fixed between the joint of the injection needle and the injection hole. In addition, various fixing methods are conceivable, such as directly attaching the sheet material to the injection hole with a known adhesive or the like.

<C> Filling the Gas Chamber with the Gas To fill the gas chamber of the cylinder with the gas, a syringe needle is pierced from a fixed stopper, and from here a liquid gas for a gas lighter or the like is filled. At this time, it is conceivable that the syringe used for adjusting the position of the movable stopper in the cylinder is not collected as it is but is positioned in the gas chamber to be used for gas filling. It is conceivable to fill the gas chamber with compressed air instead of filling it with gas.However, since the compressed air cannot be seen, if it leaks from the gas chamber, it cannot be confirmed and the syringe may be wasted. Although it is conceivable, it is preferable to use compressed air because the liquid gas can be seen to be filled through the cylinder.

<D> Use of Veterinary Injection Needle The use of the veterinary syringe prepared by the operations described in the above <A> to <C> will be described. The animal syringe is a member corresponding to an arrow of a blow arrow, and is used by spraying the animal with a known tubular member having an inner diameter (slightly loosened) suitable for the animal syringe. At this time, as the tubular member, for example, a resin pipe such as a vinyl chloride pipe or a metal pipe such as aluminum or stainless steel may be used. An animal syringe is inserted into the above-described tubular member, and is sprayed from a location away from the animal to hit the animal. As shown in FIG. 3, a breaking wire 5 is disposed on the injection needle 3 pierced into the body of the animal 6,
A sheet for closing the injection hole 23 of the cylindrical body 2 with the rear end of the breaking wire 5 pushing the tip of the breaking wire 5 protruding to the tip of the injection needle 3 backward by the impact force applied to the animal 6 so that the rear end of the breaking wire 5 is closed. Break through material 4. When the sheet material 4 is broken, the gas in the gas chamber 22 pushes out the gas in the gas chamber 22 through the movable stopper 24, and the liquid is injected into the animal 6 from the tip of the injection needle 3. In this way, it is possible to reliably inject a drug solution such as an anesthetic into the animal body.

[0019]

As described above, the present invention has the following effects. <B> It is not necessary to close the tip of the injection needle, just place the wire on the injection needle and close the injection hole of the cylinder with a sheet.
No complicated and troublesome work is required. That is, a veterinary injection needle can be manufactured by simple processing. <B> Since the tip of the injection needle is not closed, even if the needle is not firmly fixed to the cylinder, even if the sheet breaks due to the gas pressure and the chemical gushes, the chemical gushes from the needle hole Therefore, it is very safe without flying the injection needle. <C> Since there is no need to place a ring or the like in the middle of the injection needle, there is no resistance when the injection needle pierces the animal body, and the injection needle is easily pierced deeply into the animal body. Therefore, the drug solution can be reliably and sufficiently injected into the body of the animal. <D> Since the opening for injecting the drug solution is an opening at the tip like a normal injection needle, when the injection needle pierces the animal body shallowly (for example, when the injection needle is lightly pierced into the skin part) However, the drug solution can be sufficiently injected into the body of the animal.

[Brief description of the drawings]

FIG. 1 is an exploded view of the animal syringe of the present invention.

FIG. 2 is an explanatory view of a drug solution injection structure of an animal syringe.

FIG. 3 is an explanatory view when an animal syringe is used.

FIG. 4 is an explanatory view of a conventional animal syringe.

Claims (4)

[Claims] 1. An animal syringe for injecting a drug solution or the like into an animal body, comprising: a cylinder having an injection hole; and a movable stopper disposed in the cylinder, and formed between the injection hole and the movable stopper. A liquid medicine chamber, a gas stopper formed at a rear end of the cylinder, a gas chamber formed between the movable stopper and the stationary stopper, a sheet material for sealing an injection hole of the cylinder, and a sheet at the injection hole. An animal syringe, comprising: an injection needle which is attached while sandwiching a material, wherein a breaking wire is arranged in the injection needle, and the seal material is breakable. 2. The animal syringe according to claim 1, wherein the length of the breaking wire is longer than the length of the injection needle, and protrudes from the tip of the injection needle. 3. The veterinary syringe according to claim 1 or 2, wherein the breaking wire is located in a space formed in a connection formed between the injection needle and the injection hole of the cylindrical body. An animal syringe characterized by forming a stopper portion for preventing falling off of the syringe. 4. The animal injector according to claim 1, wherein the breaking wire breaks the sheet material closing the injection hole when the injection needle collides with the animal body. A veterinary syringe, characterized in that: