JP6242175B2 - Fish injection device - Google Patents

Description

  The present invention relates to a fish body injection device for injecting a vaccine into a fish body, and more particularly to a fish body injection device that allows a non-expert to quickly inject a vaccine without damaging the fish body.

In the fish farming industry, once fish cultivated in a ginger get sick, the cultured fish in the ginger may be completely destroyed without being touched. Vaccination is being carried out as a countermeasure.
The vaccination method for such cultured fish includes the oral method in which the vaccine is soaked in the long-term inoculation, the immersion method in which a large amount of fish is immersed in the vaccine solution at once, and the fish directly using a syringe. There is an injection method to vaccinate.

  Here, since the vaccine for fisheries is very expensive (about 100,000 yen per 500 ml), the mainstream is an injection method that allows the vaccine to be used efficiently and the amount of inoculation to be adjusted reliably. It has become. Among them, a so-called pistol type that uses a mechanism that converts the pulling action into a pushing action on the piston as it is, or a mechanism that drives the piston when compressed air is supplied from the compressor when the trigger is pulled. The method of performing vaccination using a syringe is generally used.

However, since the place where the vaccine is injected is usually the belly of the fish body, in this vaccination method using a pistol type syringe, the fish is lifted with the hand opposite to the dominant hand and the pistol type syringe is used with the dominant hand. It will be operated and vaccinated. Therefore, since the violent fish is grabbed with the hand opposite to the dominant hand, there is a problem that a large time loss occurs for beginners and unskilled workers who are not used to work.
In addition, since this method can only vaccinate one animal at a time, there is a problem that it is very time-consuming and the load on the fish body is large.
Furthermore, since the vaccination work is for tens of thousands of animals per day, this method, which allows only one vaccination at a time, is effective even if a highly skilled worker can handle a large number of people. There is also the problem of getting worse.

  Therefore, in order to reduce the burden on the operator, a fish body injection device that has been automated or semi-automated has been disclosed (see Patent Document 1 and Patent Document 2).

JP 2010-179075 A Japanese Patent No. 3936264

  However, for the fish injection devices of Patent Document 1 and Patent Document 2, although the burden on the worker is somewhat reduced, it is still necessary to measure the fish one by one or place it on a support base, so that the work efficiency is still high. There is a problem that gets worse.

In addition, the fish body injection device of Patent Document 1 or Patent Document 2 includes a fish body presser (Patent Document 1), a support base, and a moving mechanism (for holding the fish body so that the fish is not exposed when the vaccine is injected into the fish body). Patent Document 2) is required.
Therefore, for fish with soft vaccinations (for example, cues with a soft abdomen) or fish with fast legs that fall rapidly when the fish is damaged (for example, tuna, mackerel, sardines, etc.) In the fish injection devices of Patent Document 1 and Patent Document 2 that hold down the blood pressure, there is a problem that the vaccine cannot be successfully injected into the fish body or the fish body is damaged.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a fish body injection device that allows a non-expert to quickly inject a vaccine without damaging the fish body.

In order to achieve the above object, a fish body injection device according to claim 1 of the present invention includes a syringe, a syringe connected to the tip of the syringe, and a piston inserted into the syringe, driving means for driving the piston in the axial direction of said syringe barrel, provided in front of the syringe, a guide member for contacting the fish, is coupled to the guide member, the guide member when contacting the fish Displacement detection means for detecting the displacement of the guide member, and control means for driving the drive means based on the output from the displacement detection means . The guide member includes a penetrating portion that allows the injection needle to pass therethrough. a front and provided at a position to project the injection needle from the penetration portion, characterized in Rukoto.

The fish body injection device according to claim 2 of the present invention is characterized in that the displacement detection means uses at least one detection means selected from a load cell, a strain gauge, a pressure sensor, and a piezoelectric element.

A fish body injection device according to claim 3 of the present invention is characterized in that the displacement detection means is a load cell having a strain gauge attached thereto.

The fish body injection device according to claim 4 of the present invention is characterized in that the displacement detecting means is connected to the back surface of the surface of the guide member that contacts the fish body.

The fish body injection device according to claim 5 of the present invention is characterized in that the control means drives the drive means when the output from the displacement detection means exceeds a threshold value.

  According to the fish body injection device according to the present invention, since the vaccine can be injected while the fish body is in contact with the guide member, even an unskilled person can quickly inject the vaccine into the fish body.

Further, according to the fish injection device according to the present onset bright, since already in a state that stuck injection needle fish body in the step of contacting is fish in the guide member, it is injected vaccines without damaging the fish body it can.

Further, according to the fish injection device according to claims 2 to 4 of the present invention, it is possible to accurately detect that the fish is in contact with the guide member, without damaging the more fish, quickly vaccine unskilled person Can be injected.

Further, according to the fish body injection device according to claim 5 of the present invention, the output from the displacement detection means is determined based on the threshold value and the vaccine is injected, so that the threshold value depends on the type of fish body. By changing the above, even an unskilled person can quickly inject a vaccine without damaging the fish body even if the fish to be vaccinated is soft or a fish whose fish body is damaged.

It is a schematic diagram which shows the structure of the fish body injection apparatus of this invention. It is a perspective view which shows embodiment of the fish body injection apparatus of this invention. It is a perspective view which shows the use condition of the fish body injection apparatus of this invention. It is a graph which shows the working time at the time of using the fish body injection apparatus of this invention.

  Embodiments of the present invention will be described with reference to the drawings. The embodiment described below is merely an example embodying the present invention, and does not limit the technical scope of the present invention.

  First, the structure of the fish body injection apparatus 1 concerning this invention is demonstrated based on FIGS. 1-3. FIG. 1 is a schematic view showing the structure of the fish body injection device of the present invention, FIG. 2 is a perspective view showing an embodiment of the fish body injection device of the present invention, and FIG. 3 shows the use state of the fish body injection device of the present invention. It is a perspective view shown.

As shown in FIG. 1, the fish body injection device 1 according to the present invention is composed mainly of a syringe 2, a drive unit 3, a guide member 4, a displacement detection unit 5, and a control unit 6 described later. . Here, the guide member 4 is provided in front of the syringe 2, and the displacement detection means 5 is connected to the guide member 4. The driving means 3 is structured to be driven by the control means 6.
Further, as shown in FIGS. 1 and 2, the displacement detection means 5 is connected to the control means 6 by wiring 7.
Furthermore, as shown in FIG. 3, the fish body injection device 1 is provided with an angle 8, and is configured to be fixed to the work table 9 by being connected to a support bar 10 provided on the work table 9. . In FIG. 3, the fish body injection device 1 is installed so that the injection needle 12 is parallel to the work table 9. However, the present invention is not limited to this, and it is better to pierce the injection needle 12 from an oblique direction. In the case of a good fish body, the fish body injection device 1 can be installed by adjusting the angle 8 so that the injection needle 12 is inclined with respect to the work table 9.

  Next, the main components constituting the fish body injection device of the present invention will be described.

(Syringe)
The syringe 2 used in the fish body injection device of the present invention is configured with a syringe barrel 11, a syringe needle 12 connected to the tip of the syringe barrel 11, and a piston 13 inserted into the syringe barrel 11 as main components. If so, various known syringes can be used. 2 and 3, a drug such as a vaccine is supplied to the syringe barrel 11 through the hose 14.

(Driving means)
The driving means 3 used for the fish body injection device of the present invention drives the piston 13 in the axial direction of the syringe barrel 11, and supplies a liquid medicine such as a vaccine supplied in the syringe barrel 11 to the fish body through the syringe needle 12. It is for injection.
The driving means 3 used in the fish body injection device of the present invention is not particularly limited as long as it can drive the piston 13 in the axial direction of the syringe barrel 11, but a small amount of vaccine to be injected. Compressor (not shown) and solenoid valve (not shown) from the point that can be reliably injected into the fish body and the point that the injection work can be completed in a short time (working efficiency is improved) It is preferable that it is comprised from these. With such a structure, by opening and closing the electromagnetic valve based on a signal from the control means 6 described later, compressed air from the compressor can be quickly transmitted to the piston 13 through the hose 15, and a small amount of vaccine can be obtained. The fish body can be reliably injected in a short time.

(Guide member)
The guide member 4 used in the fish body injection device of the present invention is provided in front of the syringe 2 so that the injection needle 12 can be easily inserted into the fish body (particularly, the abdomen of the fish body) by contacting the fish body. At the same time, it plays the role of a restricting plate to prevent the needle from being stuck too deeply.
Here, the guide member 4 used in the fish body injection device of the present invention is particularly suitable as long as it can be temporarily fixed by bringing the fish body into contact and the injection needle 12 can be inserted into the fish body (particularly the abdomen of the fish body). Although it is not limited, since the amount of vaccine injected into the fish body is small as described above, it is necessary to reliably inject such a small amount of vaccine into the fish body, so that the fish body contacts the guide member 4. It is preferable that the injection needle is already stuck in the fish body at the stage of the above. Specifically, as shown in FIG. 1 and FIG. 2, it is preferable to provide a penetrating portion 16 for penetrating the injection needle 12 and to place the injection needle 12 at a position protruding from the penetrating portion 16. In addition, although the penetration part 16 has the hole shape in the fish injection apparatus 1 shown in FIG. 1 and FIG. 2, if the injection needle 12 comes to protrude from the penetration part 16, it will not be limited to this. However, various forms such as a notch shape, a slit shape, and a groove shape can be employed.
Moreover, it does not specifically limit about the shape and material of the guide member 4 used for the fish injection apparatus of this invention, The thing of various shapes and materials is employable.

(Displacement detection means)
The displacement detection means 5 used in the fish body injection device of the present invention is for detecting that the fish body has contacted the guide member 4. Specifically, it is for detecting the displacement of the guide member 4 when the fish body contacts the guide member 4.
The displacement detecting means 5 used in the fish body injection device of the present invention is not particularly limited as long as it can detect the displacement of the guide member 4, but a slight displacement of the guide member 4 is used. It is preferable to employ at least one type of detection means selected from a load cell, a strain gauge, a pressure sensor, and a piezoelectric element because it can be reliably detected. Such detection means may be used alone or in combination. However, as shown in FIG. 1 and FIG. 2, a strain gauge 18 is attached to the load cell 17 in view of more accurate displacement detection. Is preferably the displacement detection means 5.
Furthermore, the displacement detection means 5 used in the fish body injection device of the present invention is connected to the body of the fish body injection device 1 above the displacement detection means 5 so that a slight displacement of the guide member 4 can be detected reliably. It is preferable that both be connected to the guide member 4 at the lower part of the displacement detecting means 5. By adopting such a form, when the fish body comes into contact with the guide member 4, a force that moves the insulator acts on the displacement detection means 5, and a slight displacement of the guide member 4 is reliably detected. It can be done.

  Next, the operation and action of the fish body injection device 1 configured as described above will be described with reference to FIGS. 1 and 3.

  First, as shown in FIG. 3, the fish body injection device 1 is fixed to the work table 9 by the angle 8 and the support rod 10.

  Next, as shown in FIG. 1, the fish injection site (usually the abdomen of the fish body) is placed on the guide member 4 by sliding the fish body on the work table 9 using a hand and simultaneously changing the direction of the fish body. Make contact. If it does so, since the injection needle 12 protrudes from the penetration part 16 of the guide member 4, the injection needle 12 will be stabbed in a fish body.

Next, when the guide member 4 is brought into contact with the fish body and the injection needle 12 is inserted into the fish body, the displacement detection means 5 (load cell 17 and strain gauge 18) connected to the guide member 4 is shown in FIG. Thus, a load like a lever is applied with the connecting portion 19 between the displacement detecting means 5 and the fish body injection device 1 as a fulcrum and the connecting portion 20 between the displacement detecting means 5 and the guide member 4 as a power point.
Therefore, even with a slight displacement of the guide member 4 such that the fish body comes into contact, the displacement detecting means 5 reliably detects that the fish body has contacted the guide member 4.

  Next, the displacement detection means 5 that has detected that the fish body has contacted the guide member 4 converts the displacement into an electrical signal and outputs the electrical signal to the control means 6.

  Next, the control means 6 that has received the output from the displacement detection means 5 stores the threshold value (the fish body is in contact with the guide member 4 and the injection needle 12 is sufficiently inserted into the fish body) in which the received output is stored in advance. A signal that drives the driving means 3 (supplying compressed air to the syringe 2 by opening the electromagnetic valve) and turns on the LED 21 when exceeding the electric signal output from the displacement detecting means 5 when a certain load is applied Is sent for a certain period of time. As a result, an appropriate amount of vaccine is injected into the fish.

  Finally, when the signal from the control means 6 stops after a certain period of time, the drive means 3 stops (the supply of compressed air is stopped by closing the solenoid valve) and the LED 21 is turned off. Then, since the operator can recognize that the injection of the vaccine into the fish body has been completed, the fish body is separated from the guide member 4 and is moved to a vaccination work for another fish body.

Therefore, the fish body injection device of the present invention can inject an appropriate amount of vaccine into the fish body in a short time and can quickly inject the vaccine without damaging the fish body.
In addition, since the worker only needs to check that the LED is lit by bringing the fish into contact with the guide member, a series of operations can be quickly performed.
Furthermore, if the fish injection device of the present invention is installed on each of the right hand side and the left hand side, vaccination of two fish bodies can be performed at a time, and the working time can be greatly shortened. . In addition, since it is only necessary to slide the fish body on the work table and bring it into contact with the guide member, the vaccination method using a conventional pistol-type syringe, Patent Document 1 and Patent Document 2 are described. Like a fish injection device, it is possible to inject a vaccine without requiring skill and without pressing the fish.

  Next, the present invention will be described in more detail with reference to examples. FIG. 4 is a graph showing the working time when the fish body injection device of the present invention is used.

  At the Kinki University Fisheries Research Institute in Shirahama, Wakayama Prefecture, each veterinary veterinary worker and 3 non-experts use the fish injection device of the present invention (Example) and a pistol type syringe (Comparative Example). Forty rabbits were vaccinated and the time required was measured. And the average working time required for one animal was calculated and compared.

  As a result, as shown in FIG. 4, by using the fish body injection device of the present invention, the working time could be shortened by about 50% for the unskilled person and about 40% for the skilled person. In particular, even a non-skilled person can shorten the working time by 0.02 seconds by using the fish body injection device of the present invention as compared with the case where the skilled person uses a pistol type syringe. This seems to be because the fish body injection device of the present invention can perform the vaccination work only by sliding the fish body on the work table and bringing it into contact with the guide member.

  The fish body injection device of the present invention can be used for vaccination of fish bodies.

DESCRIPTION OF SYMBOLS 1 Fish body injection apparatus 2 Syringe 3 Drive means 4 Guide member 5 Displacement detection means 6 Control means 7 Wiring 8 Angle 9 Worktable 10 Support rod 11 Injection cylinder 12 Injection needle 13 Piston 14 Hose 15 Hose 16 Through part 17 Load cell 18 Strain gauge 19 Connecting part 20 Connecting part 21 LED

Claims (5)

A syringe including a syringe, a syringe needle connected to the tip of the syringe, and a piston inserted into the syringe;
Drive means for driving the piston in the axial direction of the syringe barrel;
A guide member provided in front of the syringe for contacting the fish;
Coupled to said guide member, a displacement detecting means for detecting a displacement of the guide member when allowed to come in contact with the fish to the guide member,
E Bei control means for driving the drive means on the basis of an output from said displacement detecting means,
The guide member is
While having a penetrating portion for penetrating the injection needle,
The syringe of a front, and fish injection device the injection needle, characterized that you have provided at a position to project from the penetrating portion. The displacement detection means is
The fish body injection device according to claim 1, wherein at least one type of detection means selected from a load cell, a strain gauge, a pressure sensor, and a piezoelectric element is used. The displacement detection means is
Fish injection device according to claim 1 or claim 2, characterized in that the load cell is obtained adhered a strain gauge. The displacement detection means is
The fish body injection device according to any one of claims 1 to 3 , wherein the fish body of the guide member is connected to a back surface of a surface with which the fish body comes into contact. The control means is
The fish body injection device according to any one of claims 1 to 4 , wherein the driving unit is driven when an output from the displacement detection unit exceeds a threshold value.