JP2001170090A - Syringe for creature - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a syringe for a creature capable of safely and quickly injecting a drug fluid to a creature including a cattle. SOLUTION: This syringe for a creature has a cover 5 with a projecting hole 6 for an injection needle 4 fitted through the outer periphery of a barrel 2 so as to be movable back and forth and adapted to be energized to the end of the injection needle 4 for covering the injection needle 4 when the injector 1 is not used. A tube is connected to a space of the barrel 2 via a connection member 14 for supplying an injection. A first slit 12 ranging from a base end opening 7 of the cover 5 to the end thereof is fitted to the neck 14a of the connection member 14, whereby the cover 5 can be moved back and forth with respect to the barrel 2. A second slit 13 following the first slit 12 is provided in proximity to the base end of the cover 5 in the circumferential direction. When the injector 1 is not used, the injection needle 4 can be always covered by engaging the neck 14a of the connection member 14 with the second slit 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a syringe for injecting a drug solution into living creatures such as livestock, and more particularly, to a syringe for living creatures which can cover a needle attached when the syringe is not used.

[0002]

2. Description of the Related Art Conventionally, one of the important tasks in breeding animals is regular chemical injections performed for disease prevention. In addition, since it is disgusted with injections and is performed on a large number of uncontrolled organisms, the burden on breeders who perform injections such as chemicals is considerable physically and mentally. For this reason, there are mistakes due to unexpected movement of the projectile and fatigue of the breeder who is carrying out the medicinal solution injection, which also causes inadvertent mistakes due to a decrease in attention.

[0003] The main thing is that the needle attached to the syringe often has a puncture, and when picking up a syringe which is intended to inject a drug solution into a livestock, a finger or a fingertip touches the needle by mistake. Many injuries are caused by piercing the needle or scratching the skin with the needle. Increasing fatigue has also caused mistakes other than those involving syringes.

[0004] For this reason, the present inventors have proposed that a fish syringe be provided with arms having a fan opening angle of 30 ° to 60 ° above and below the injection needle, guide the fish during this time, and perform an injection operation. are doing. However, this arm is effective for small intervening organisms such as fish, but not available for larger organisms. In addition, it is a skill to properly guide an organism of an appropriate size between the arms. Therefore, development of a syringe that does not require skill and that can be applied to any living thing has been desired.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to provide a biological syringe which can safely and rapidly perform an operation of injecting a drug solution into a living organism.

[0006]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a biological syringe in which a chemical solution is delivered from a syringe needle at the end of a barrel into an object by operating a piston inserted into the barrel. A cover having a protruding hole for the injection needle at its tip is reciprocally movable and biased in the direction of the tip of the injection needle to be inserted therein, and is held at a position where the syringe is covered when the syringe is not in use. A biological syringe, wherein the syringe is retracted while being pressed against the projectile while resisting the bias, and the injection needle projects from the projecting hole and is injected into the projectile.

[0007] Explaining the syringe of the present invention, living organisms include all living subjects, and include not only animals such as livestock but also plants. The syringe comprises a barrel for storing a drug solution, a piston connected to a handle for sucking the drug solution into the barrel or injecting the drug solution into the barrel, and an injection needle for piercing a living body such as livestock, which is the body to be injected. In the case of a continuous syringe for continuously injecting a drug solution into an object to be injected, a connection member having a suction valve for the drug solution is provided in a barrel of the syringe, and the connection member includes A tube with a suction needle is connected.

[0008] A cover having a projecting hole from which the injection needle projects is inserted into the outer periphery of the barrel of the syringe so as to be able to advance and retreat, and is urged by a coil spring toward the tip of the injection needle. When not in use, the cover covers the injection needle. The cover has a cylindrical shape with a distal end formed in a hemisphere and an open proximal end, and a projection hole through which an injection needle projects is provided in the center of the distal end of the hemisphere. The diameter of the protruding hole and the shape of the circumference may be appropriately set as appropriate.

When the cover is inserted into a continuous syringe provided with a connecting member in a barrel, a first slit having a width fitting into the neck of the connecting member from the base opening to the distal end of the cover is provided. Preferably, the slit is fitted to the neck of the connecting member so that the cover can advance and retreat with respect to the barrel.

[0010] Further, a second slit following the first slit is provided in the circumferential direction in the vicinity of the base end of the cover, and the neck of the connecting member is engaged with this slit at all times when the syringe is not used. The injection needle may be covered up. That is, the engagement and disengagement of the neck of the connecting member with the second slit suppresses the forward and backward movement of the cover.

Therefore, when the user holds the syringe and pushes the cover against the object, only the injection needle is stabbed into the object. When the pressing force is released, the cover is restored and the injection needle is hidden. . The method of urging the cover is not particularly limited, but a ridge is provided substantially in the center of the outer periphery of the cover and in the circumferential direction of the base end, and an annular body is fitted between the ridges so as to be able to advance and retreat, It is preferable to insert a coil spring between the annular body and the central ridge to urge the spring. The width and height of the ridge and the annular body are not particularly limited. Further, the number of coils and the urging force of the coil spring are not particularly limited, but the cover must be easily movable.

The cover may have a two-piece structure including a needle cover having a projecting hole and a needle cover holder having a first slit and a second slit. Specifically, a screw is threaded on the base end of the needle cover part and the tip end and base end of the needle cover holder part, the needle cover part is screwed on the tip end of the needle cover holder part, and almost the outer periphery of the cover is covered. The ridges provided in the circumferential direction at the center and the base end may be screwed on the inner wall of the annular body and screwed to the tip and base end screws of the needle cover holder, respectively. At that time, the annular body and the coil spring may be inserted between the respective ridges formed by screwing the annular body.

The material of the cover including the needle cover portion and the needle cover holder portion is not particularly limited as long as it is formed by appropriately using a resin, a metal, or the like, but is preferably a transparent cover through which the inside can be seen. Good. Further, the material of the coil spring is not particularly limited, but a material having rust prevention such as stainless steel is preferably used. Also, the hardness of the member is not particularly limited, and a hard material or a soft material may be appropriately used if there is no problem in use.

[0014]

Since the biological syringe of the present invention is constructed as described above, when the syringe is not used, the cover is advanced to a position to cover and hide the injection needle by the urging force of the coil spring. The engagement of the second slit with the neck of the member allows the cover to move back and forth to the second position.
Are suppressed by the side wall of the slit. Thereby, the injection needle is always hidden in the cover.

When using the syringe, the cover is turned circumferentially so that the neck of the connecting member engaging with the second slit is engaged with the first slit, and the neck is aligned with the position of the first slit. This allows the cover to advance and retreat with the neck engaged with the first slit. That is, the operation is for unlocking the cover.

At the time of injection, when the drug solution is sucked into the barrel of the syringe and the tip of the cover is pressed against the projectile, the cover retreats, and the injection needle attached to the tip of the syringe projects from the projecting hole at the tip of the cover. Penetrate into the body of
After piercing, push the handle connected to the piston to inject the drug solution into the living body. When the injection is completed, the injection needle is removed from the subject, and the cover is advanced by the coil spring to cover the injection needle.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the biological syringe of the present invention will be described below with reference to the drawings. The cover shown in this figure is transparent, but is not limited to this. FIG. 1 is a side view of a biological syringe, wherein 1 is a syringe according to the present invention, 2 is a barrel for storing a drug solution, 3 is a piston for pushing out a drug solution in a barrel 2, and 4 is an injection for inserting a drug solution into a living body and injecting the drug solution. needle,
5 is a cover for covering the injection needle 4 when the syringe 1 is not used,
Reference numeral 6 denotes a projecting hole provided at the tip of the cover 5 and through which the injection needle 4 projects.

Reference numeral 8 denotes a ridge provided substantially at the center of the outer periphery of the cover 5, 9 denotes a ridge provided at a base end of the outer periphery of the cover 5,
10 is a ring fitted on the outer periphery of the cover 5 so as to be able to advance and retreat,
Reference numeral 11 denotes a coil spring fitted on the outer periphery of the cover 5 to advance the cover 5 toward the distal end of the injection needle 4.

Reference numeral 14 denotes a connecting member to which a tube for supplying a chemical solution provided in the barrel 2 is connected, and 14a denotes a connecting member 1
Reference numeral 4 denotes a neck, 15 denotes a connection port of a tube, 16 denotes a handle for supporting the syringe 1, and 17 denotes a handle for pressing the piston 3. FIG. 2 is a bottom view of the biological syringe, in which 12 is a first slit provided in the cover 5, and 13 is a second slit.

FIG. 3 is a perspective view of the cover, wherein 5 is a cover, 6 is a projecting hole of the injection needle 4, 7 is an opening fitted into the barrel 2, and 8 is a projection provided substantially at the center of the outer periphery of the cover 5. The one end of the coil spring 11 is locked by the ridge. Reference numeral 9 denotes a ridge provided on the base end of the outer periphery of the cover 5 to prevent the cover 5 from coming off.

Reference numeral 10 denotes a ring fitted on the outer periphery of the cover 5 so as to be able to advance and retreat, and 11 denotes a coil spring fitted on the outer periphery of the cover 5. When the cover 5 is set on the barrel 2, the cover 5 holds the syringe needle. Advance toward the tip. Reference numeral 12 denotes a first slit fitted into the neck 14a of the connecting member 14, and reference numeral 13 denotes a second slit provided in the circumferential direction following the first slit 12, and the cover 5 is formed by engaging the neck 14a with the second slit. Always covers the needle. That is, the cover 5
It is a slit that locks.

FIG. 4 is a partially enlarged view of a state in which the cover is locked, and the second slit 13 is engaged with the neck 14a (shade of the connecting member 14) of the connecting member 14 having the connection port 15. The cover 5 is moved forward and backward by the second slit 13.
Is restrained. FIG. 5 is a partially enlarged view of a position where the cover can move forward and backward, and the first slit 12 is engaged with the neck portion 14 a (shade of the connecting member 14) of the connecting member 14 having the connection port 15. The cover 5 can move forward and backward.

FIG. 6 is a partially enlarged view showing a state in which the cover has been withdrawn. When the tip of the cover 5 is pressed against the living body, the cover 5 is attached to the neck 14a of the connecting member 14 (the connecting member 1).
The first slit 12 is engaged with (in the shade of 4) and retreats, the injection needle 4 protrudes from the protruding hole 6 provided at the tip of the cover 5, and the injection needle 4 is stabbed into the living body. When the injection of the drug solution is completed and the injection needle 4 is removed from the living body, the cover 5 is advanced by the coil spring 11 and covers the injection needle 4.

FIG. 7 is an exploded side view of a cover having a two-piece structure. Reference numeral 50 denotes a needle cover having a projecting hole 51, and a screw 52 is threaded at a base end of the needle cover 50. 53 is the first
A needle cover holder having a slit 54 and a second slit 55,
A screw 57 is screwed at the base end of the screw 6.

Reference numeral 58/59 denotes a ridged ring having a thread threaded on the inner wall, and includes a ring 10 and a coil spring 1.
1 is fitted around the outer periphery of the needle cover holder 53 and the screw 56 /
The screw 57 is screwed. And the screw 5 of the needle cover 50
2 and the screw 56 of the needle cover holder 53 are screwed to form a cover.

[0026]

[Effect] Since the biological syringe of the present invention is configured as described above, when injecting a drug solution into the projectile, the drug solution is sucked into the barrel of the syringe and the tip of the cover is placed on the skin of a living organism such as livestock. By pressing the cover, the cover is automatically retracted, and the injection needle protrudes from the projecting hole at the tip of the cover and is inserted into the living body. When the injection of the medical solution into the living organism is completed and the injection needle is removed from the living organism, the cover is advanced by the coil spring and automatically covers and hides the injection needle.

As described above, since the injection needle is covered with the cover during the operation of injection of the medicinal solution, there is no occurrence of injuries caused by the injection needle, and the operation of injecting the medicinal solution to livestock can be performed safely and promptly. Can be. When the syringe is stored after the chemical solution injection operation is completed, the cover is locked on to prevent the advance / retreat operation of the cover, so that the syringe can be stored safely.

Further, the object can be used for any object without being restricted by the object. Further, the cover is made of a transparent member that can see through the inside, the state of the injection needle, the connection state of the injection needle, and the like can be checked, and the treatment in the event of an abnormality can be promptly dealt with, Therefore, it is advantageous also in work and leads to further improvement of safety.

[Brief description of the drawings]

FIG. 1 is a side view of a biological syringe.

Fig. 2 Bottom view of biological syringe

FIG. 3 is a perspective view of a cover.

FIG. 4 is a partially enlarged view of a state where a cover is locked.

FIG. 5 is a partially enlarged view of a position where the cover can move forward and backward.

FIG. 6 is a partially enlarged view showing a state in which the cover has exited.

FIG. 7 is an exploded side view of a two-piece structure cover.

[Explanation of symbols]

1-syringe, 2-barrel, 3-piston, 4-needle,
5-cover, 50-needle cover, 51-projection hole, 52-screw, 53-needle cover holder, 54-first slit,
55-second slit, 56-screw, 57-screw, 58
-Ridge ring, 59-ridge ring, 6-projection hole, 7-opening, 8-ridge, 9-ridge, 10-ring, 11-coil spring, 12-first slit, 13-second Slit, 14-connection member, 14a-neck, 15-connection port,
16-handle, 17-handle

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor, Takashi Aso 3-19-16 Nukii, Nerima-ku, Tokyo Fujihira Industry Co., Ltd. Fujimidai Plant (72) Inventor Nobuyuki Shibayama 6-11 Hongo, Bunkyo-ku, Tokyo No. 6 Fujihira Industry Co., Ltd. (72) Inventor Kazuto Tanaka 6-11-6 Hongo, Bunkyo-ku, Tokyo F-term Industry Co., Ltd. F-term (reference) 4C066 AA09 AA10 BB01 CC01 DD08 EE14 NN04

Claims (5)

[Claims] 1. A biological syringe in which a medical solution is delivered from a syringe needle at the tip of a barrel into an object by operating a piston inserted into the barrel. It can be fitted and inserted by being urged in the direction of the tip of the injection needle.When not in use, it is held at a position that covers the injection needle, and the tip of the cover is pressed against the object to be retracted while resisting the bias. A biological needle, wherein an injection needle projects from the projecting hole and injects the projectile. 2. The cover according to claim 1, wherein the cover has a cylindrical shape with a distal end formed in a hemisphere and an open proximal end, and a protruding hole through which the injection needle can protrude is provided at the center of the hemisphere. Biological syringe 3. A tube for supplying an injection solution to a space of the barrel is connected to the barrel by a connecting member, and a first slit provided at a neck of the connecting member from a base end opening of the cover toward a front end thereof. 2. The biological syringe according to claim 1, wherein the cover is adapted to be retractable with respect to the barrel. 4. A non-use of a syringe by providing a second slit extending from the first slit in the circumferential direction near the base end of the cover and engaging the neck of the connecting member with the slit. 4. The biological syringe according to claim 3, wherein the injection needle is always covered at all times. 5. A ridge is provided in the circumferential direction substantially at the center and the base end of the outer periphery of the cover, and between the ridges, an annular body is fitted so as to be able to advance and retreat, and between the annular body and the center. 4. The biological syringe according to claim 3, wherein a coil spring is inserted between the projection and the ridge.