JPH073653U - Animal needle - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a highly safe animal injection needle that makes it difficult for the injection needle to break during injection and that can be easily pulled out even if it is broken. [Structure] A holder 11 in which a needle base 10 connected to a syringe 1 and a sleeve 12 projecting from the distal end thereof are integrally molded of a thermoplastic resin, and a holder 11 is inserted and fixed in the center thereof. The metal needle 9 is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to the structure of an animal injection needle.

[0002]

[Prior art]

 FIG. 3 is a schematic diagram of a conventional injector using a needle for animals. In the figure, 1 is a syringe, 2 is an injection cylinder (also referred to as barrel) of the syringe 1, scales and the like are marked on its side surface, a brim portion 3 is provided at one end, and a lure tip is provided at the other end. 4 are projected. Reference numeral 5 denotes a plunger to be inserted into the syringe barrel 2, a handle 6 serving as both the operation of the plunger 5 and a stopper is provided at one end, and a rubber tip slidably contacted with the inner periphery of the syringe barrel 2 at the other end. 7 is provided.

An animal injection needle 8 is composed of a metal needle 9 and a needle base 10 which is fixed by inserting the metal needle 9 into the center of one end thereof. The other end of the needle base 10 is an injection needle. It is connected to the lure tip 4 of the tube 2. The syringe 1 is composed of a syringe 2, a plunger 5 and an animal injection needle 8.

When injecting an animal using the conventional animal injection needle 8 configured as described above, first, the needle base 10 of the animal injection needle 8 is firmly connected to the luer tip 4 of the injection cylinder 2. , The handle 6 of the plunger 3 is operated to inject the drug solution into the syringe barrel 2. Then, it is confirmed whether or not the drug solution comes out of the metal needle 9, and after the confirmation, the metal needle 9 is pierced into the body (blood vessel etc.) of the animal to inject the drug solution in the syringe barrel 2 into the animal.

[0005]

[Problems to be solved by the device]

 When an animal is injected using the conventional animal injection needle 8 as described above, the animal often moves during the injection. Therefore, the force causes the animal injection needle 8 to bend. It was very difficult to pull out the metal needle 9 because the metal needle 9 was broken at the connecting portion between the metal needle 9 and the needle base 10 shown in FIG. In addition, the pierced metal needle 9 may enter the body and hinder the animal, resulting in poor safety.

The present invention has been made to solve the above-mentioned problems, and makes it possible to prevent the injection needle from breaking during injection, and for animals with high safety that can be easily pulled out even if it is broken. The purpose is to provide an injection needle.

[0007]

[Means for Solving the Problems]

 An animal injection needle according to the present invention comprises a holder in which a needle base to be connected to a syringe and a sleeve protruding from the distal end of the needle base are integrally molded of a thermoplastic resin, and the needle is inserted into the center of the holder. It consists of a fixed metal needle.

Further, a needle base connected to a syringe and a holder formed through a small-diameter portion at a distal end of the needle base are integrally molded of a thermoplastic resin, and the holder is inserted into a central portion of the holder. It consists of a fixed metal needle.

[0009]

[Action]

 An animal injection needle consisting of a metal needle and its holder is connected to the syringe, and the plunger is operated to inject the drug solution into the syringe. Then, a metal needle is pierced into the body of the animal to inject the drug solution. At this time, the animal needle is reinforced by the sleeve of the holder, so that the animal needle is prevented from being broken by the force of the animal.

Further, a needle base connected to a syringe and a holder formed through a small-diameter portion at a distal end of the needle base are integrally molded of a thermoplastic resin, and the holder is inserted into a central portion of the holder. The metal needle that is fixed in place makes it easier for the animal injection needle to break at the small diameter part of the holder, and if it breaks, the holding part of the holder prevents the metal needle from entering the body. Make it easy to remove the injection needle.

[0011]

EXAMPLES Example 1. FIG. 1 is a schematic diagram of a first embodiment of the present invention. Incidentally, the same parts as those of the conventional example described in FIG.

In the figure, reference numeral 11 comprises a needle base 10 connected to a luer tip 4 of an injection barrel 2 and a sleeve 12 protruding from the distal end of the needle base 10. The needle base 10 is integrally molded of a thermoplastic resin such as polypropylene. In the holder, the metal needle 9 is inserted from the sleeve 12 into the needle base 10, and is fixed to the holder 11 by an adhesive, for example. The metal needle 9 and the holder 11 constitute an animal injection needle 13. The outer diameter of the sleeve 12 is preferably set to be twice the outer diameter of the metal needle 9 or less, and the length of the sleeve 12 is preferably set to be more than twice the outer diameter of the metal needle 9.

When an animal is injected using the animal injection needle 13 configured as described above, first, the luer tip 4 of the injection barrel 2 is attached with the holder 11 (needle base 10) of the animal injection needle 13. It is connected to a scale and the handle 6 of the plunger 3 is operated to inject the drug solution into the syringe barrel 2. Then, it is confirmed by operating the plunger 3 whether or not the drug solution comes out from the metal needle 9, and after the confirmation, the metal needle 9 is pierced into the body (blood vessel etc.) of the animal to inject the drug solution in the syringe barrel 2 into the animal. At this time, the animal moves and the force causes the animal injection needle 13 to bend. However, since the animal injection needle 13 is reinforced by the sleeve 12, the breakage can be prevented.

Although the metal needle 9 is inserted from the sleeve 12 into the needle base 10 and fixed to the holder 11 with an adhesive or the like in the above-described embodiment, the metal needle 9 is molded when the holder 11 is molded. 9 may be inserted into the needle base 10 from the sleeve 12 and integrally molded.

Example 2. FIG. 2 is a schematic view of the second embodiment of the present invention. In the figure, 14 is a holding body for a metal needle 9 formed by molding a thermoplastic resin similarly to the holding body 11 of the first embodiment, and is formed with a needle base 10 and a thin portion 15 at its tip. Further, it is integrally formed with the holding portion 16 whose outer circumference is expanded in an arc shape. Further, the metal needle 9 is inserted from the holding portion 16 into the needle base 10 via the small-diameter portion 13 and is fixed to the holding body 14 by, for example, an adhesive. The metal needle 9 and the holder 14 form an animal injection needle 17. The outer diameter of the small-diameter portion 15 is preferably set to be twice the outer diameter of the metal needle 9 or less.

In this embodiment configured as described above, as in the case described in the first embodiment, the animal injection needle 17 is connected to the luer tip 4 of the syringe barrel 2 to inject the drug solution into the syringe barrel 2. To do. Then, the metal needle 9 is pierced into the body of the animal to inject the drug solution. At this time, when the animal moves and the force causes the animal injection needle 17 to bend, stress concentrates on the small-diameter portion 15 and the animal injection needle 17 breaks from the small-diameter portion 15. Then, the animal injection needle 17 is held in that position by the holding portion 16 while being stuck in the body of the animal, and is prevented from entering the body, and the broken animal injection needle 17 holds the holding portion 16. Can be pulled out easily with a can.

In the above-described embodiment, the case where the metal needle 9 is inserted from the holding portion 16 into the needle base 10 through the small diameter portion 13 and fixed to the holding body 14 with an adhesive or the like is shown. The metal needle 9 may be integrally molded by inserting the metal needle 9 from the holding portion 16 into the needle base 10 via the small-diameter portion 15 when forming the holding body 14. Further, the shape of the holding portion 16 is not limited to the above embodiment, and various shapes can be applied.

Further, although the case where the drug solution is injected into an animal has been described in Examples 1 and 2, the animal injection needle 13 or the animal injection needle 17 can also be used when collecting blood, for example. , Produces the same effect.

[0019]

[Effect of device]

 As described above, according to the present invention, the needle base connected to the syringe and the sleeve protruding from the distal end of the holder are integrally formed of thermoplastic resin, and the holder is inserted into the center of the holder. Since the fixed metal needle is used, even when the animal moves and the animal injection needle is bent during injection, the animal injection needle is reinforced by the sleeve and can be prevented from breaking.

Further, a needle base connected to the syringe and a holder formed through a small-diameter portion on the tip end of the needle base are integrally molded of a thermoplastic resin, and the holder is inserted into the center of the holder. Since it consists of a metal needle that is fixed in place, if the animal needle is bent during injection and the animal needle is bent, the animal needle will break from the small-diameter part of the holder and the holding part of the holder will It is possible to obtain a highly safe animal injection needle that can be easily pulled out by preventing the injection needle from entering and holding it at that position.

[Brief description of drawings]

FIG. 1 is a schematic view of a first embodiment of the present invention.

FIG. 2 is a schematic diagram of a second embodiment of the present invention.

FIG. 3 is a schematic diagram of a conventional injector using a conventional animal injection needle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Syringe 9 Metal needle 10 Needle base 11,14 Holding body 12 Sleeve 13,17 Animal injection needle 15 Small diameter part 16 Holding part

Claims (2)

[Scope of utility model registration request] 1. A holder formed by integrally molding a needle base connected to an injector and a sleeve protruding from the distal end thereof with a thermoplastic resin, and a metal fixed by being inserted into the center of the holder. An animal needle consisting of a needle. 2. A holding body in which a needle base connected to a syringe and a holding portion formed at its distal end via a small diameter portion are integrally molded with a thermoplastic resin, and the holding body is inserted into a central portion of the holding body. An animal injection needle consisting of a fixed metal needle.