JPH0432092Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial Application Field" This invention relates to a livestock catheter for dispersing medicinal fluids into the stomach, lungs, etc. of livestock such as cows.

"Prior Art" Conventionally, when treating livestock such as cows, for example, when pneumonia occurs, injections are usually administered.

Another known method is to insert a needle into the trachea and force-feed the drug with a syringe to inject the drug into the trachea (intratracheal injection).

``Problems to be solved by the invention'' However, when administering the drug by injection as described above, the therapeutic effect is not sufficient because the drug is indirectly transferred to the lungs via the blood, and intratracheal injection When this is done, it is not uniform and there are large individual differences, the drug concentrates in the trachea, and its distribution to the lungs is limited, so that a sufficient therapeutic effect is still not achieved.

This idea was made in view of the above circumstances,
The aim is to provide a catheter for livestock that can provide more effective treatment.

"Means for Solving the Problems" The livestock catheter of this invention includes a mounting part that is detachably attached to a container or a discharge port of a device capable of discharging the contents, and communicates with the discharge port through this mounting part. an injection section connected to a distal end of the tube, and the injection section has a narrow passage communicating with the inside of the tube, a plurality of injection grooves communicating with the narrow passage, and the injection groove. The above problem is solved by providing an injection hole that communicates with the injection hole and opens to the outside, and that the injection grooves communicate with the injection hole in different directions.

"Function" According to the livestock catheter of this invention, the injection part has a narrow passage communicating with the inside of the tube, a plurality of injection grooves communicating with the narrow passage, and an injection groove communicating with the injection groove and opening to the outside. Since holes are provided and the injection grooves are communicated with the injection holes in different directions, even when using a syringe or the like to force-feed the contents (medicinal solution), the internal solution can be strongly force-fed. , the contents discharged from the container pass through the tube and are further accelerated through a narrow path, then pass through injection grooves with different directions and reach the injection hole, where the contents enter the injection hole. They are given a swirling motion or are caused to collide with each other, so that the contents are easily atomized and sprayed from the injection holes. Even when the container that can discharge the contents is an aerosol product in which a medicinal solution is pressurized with carbon dioxide gas, etc., the contents are sprayed in the form of a mist at the spraying part, so the contents can be spread directly to the affected area over a wide range. It is distributed by

Embodiment FIGS. 1 to 4 show an embodiment of a catheter for livestock of this invention, and reference numeral 1 in the figures indicates a catheter for livestock (hereinafter abbreviated as catheter). This catheter 1 is detachably attached to a stem 3 of an aerosol product 2 shown by a two-dot chain line in FIG. The tube 5 is connected to the tube 5, and the injection part 6 is connected to the tip of the tube 5.

As shown in FIG. 2, the attachment part 4 is an aerosol button and consists of a cylindrical attachment body 7 with a lid and a connector 8 attached to the attachment body 7. The attachment body 7 is detachably attached to the aerosol product 2 by fitting its internal hole 9 into the stem 3 of the aerosol product 2. Further, a connector mounting hole 10 is formed at the upper end of the internal hole 9 of the mounting portion main body 7, communicating therewith and opening on the side wall side of the mounting portion main body 7.
A connector 8 is attached to this connector attachment hole 10. Connector 8 has connector mounting hole 1
It consists of a protrusion 11 that fits into and locks the tube 5, and a large diameter portion 12 for attaching the tube 5. A groove 12a is formed along the circumferential direction on the surface of the large diameter portion 12 opposite to the protrusion 11, and the rear end of the tube 5 is fitted and attached to this groove 12a.

The tube 5 is a flexible tube made of polyethylene, silicone, etc., and has an outer diameter of 2 mm so that it can be inserted into and removed from the trachea through the nostril of a cow.
It is approximately 10 mm long and 70 to 200 cm long. Further, an injection section 6 is integrally attached to the tip of the tube 5.

The injection section 6 includes a substantially cylindrical injection section main body 13 that is engaged with the tip opening of the tube 5, as shown in FIG.
It consists of a cylindrical body 15 inserted into the internal hole 14 of the injection part main body 13, and an outer sheath 16 inserted over the injection part main body 13 and the tip of the tube 5. The injection part main body 13 has a small diameter part 17 on the rear end side.
is inserted into the tube 5, and a locking step 17a formed on the outer periphery of the small diameter portion 17 engages and closely contacts the inner surface of the tube 5, thereby locking the tube 5 thereto. Projections 18 for fixing the cylindrical body 15 to the inner hole 14 are formed on the injection part main body 13, and furthermore, the inner hole 14 is formed on the tip side of the inner hole 14.
An injection hole 19 communicating with the injection hole 19 and opening at the distal end face, and a plurality of injection grooves 20 communicating with the injection hole 19 are formed. The injection hole 19 has a small diameter opening on the tip side and communicates with the injection grooves 20 on the internal hole 14 side. The injection grooves 20 are each opened into the internal hole 14 as shown in FIG. 4, and one end thereof is connected to the injection hole 19 and extends in the outer circumferential direction of the mounting body 7. . Further, these injection grooves 20 are formed so that adjacent grooves have different directionality.

The cylindrical body 15 is inserted into the internal hole 14 of the injection part main body 13 and fixed to the protrusions 18, and has a small diameter part 21 formed at its tip. As a result, a gap between the inner surface of the internal hole 14 and the outer surface of the cylindrical body 15 is created by a narrow path 2 serving as a flow path for the contents from the aerosol container 2 and the tube 5.
2, and the narrow passage 22 communicates with the injection grooves 20 through the side of the small diameter portion 21. Here, since the narrow passage 22 is formed by the gap between the inner surface of the internal hole 14 and the outer surface of the cylindrical body 15, its passage area is naturally extremely small compared to the passage area inside the tube 5, and therefore the tube This causes the flow rate of the contents (medicinal solution) flowing through the inside of the tube to be rapidly accelerated. The narrow passages 22, the injection grooves 2, and the injection holes 19 constitute a so-called mechanical break-up mechanism.

The exterior 16 is a substantially cylindrical member made of metal such as cylindrical material, synthetic resin such as polyethylene, or rubber, and has a radius at the tip and a tapered surface at the rear end, excluding the pointed end. be. Furthermore, the outer surface of the outer sheath 16 is processed to be smooth so that there are no irregularities due to burrs or the like, so that the inner wall will not be damaged when inserted into the trachea of a domestic animal. Furthermore, the outer sheath 16 is selected in advance to have an appropriate size and outer diameter so that it can be easily inserted into and removed from the nostrils, trachea, etc. of livestock such as cattle.

In order to treat, for example, bovine pneumonia using the catheter 1 having such a configuration, an aerosol product 2 is prepared by filling an aerosol pressure-resistant container with a drug solution, attaching an aerosol valve, and pressurizing the container with carbon dioxide gas, etc. The attachment part 4 of the catheter 1 is attached to the stem 3 of this.
Attach. Next, the injection part 6 is inserted into the nostril of the cow from its distal end side, and is further inserted through the trachea to the endotracheal bifurcation. Thereafter, the attachment part 4 is pressed and the stem 3 is pushed down to eject the aerosol contents.
Then, the aerosol contents pass through the attachment part 4 and the tube 5 and flow into the injection part 6, where they collide with each other by passing through the injection grooves 20 having different directions, thereby causing a wide range of It spreads in the direction and is sprayed.

With such a catheter 1, the medicinal solution (aerosol content) can be injected over a wide range to the affected area, so that a sufficient therapeutic effect can be obtained. In addition, since the flexible tube 5 is used, it can be easily inserted into a curved hole such as the inside of the trachea, and can be easily taken out without damaging the inside of the trachea. can. Furthermore, the medicinal solution can be sprayed onto the affected area simply by attaching the attachment part 4 to the aerosol product 2 and pressing the attachment part 4, making it extremely easy to use.

In addition, in the above-mentioned catheter 1, the damage prevention member 23 may be inserted over the outer periphery of the exterior as shown by the two-dot chain line in FIG. 3, for example. Here, the scratch prevention member 23 is a substantially cylindrical member made of synthetic rubber such as silicone or soft synthetic resin, and is rounded at its outer periphery.
It is designed to prevent damage to the inner wall of the trachea when it is inserted into and removed from the trachea.

Further, FIG. 5 shows a modification of this invention, in which the shape of the exterior 16 of the injection part 6 is different from that of the previous example. In FIG. 5, the injection part 6 is attached to the tip of the tube 5 as in the previous example, and consists of an injection part main body 13 (not shown), a cylindrical body 15 (not shown), and an exterior 24. There is. The exterior 24 includes a substantially cylindrical spherical member 24a with a spherical outer peripheral surface, and a cylindrical fixing tube 24 for fixing the spherical member 24a to the tube 5.
b, and is made of synthetic resin such as polyethylene. and,
Since the injection part 6 equipped with such an exterior 24 has a structure that also includes the scratch prevention member 23 shown in FIG. 3, it has excellent productivity and economical efficiency.

In addition, in the injection part 6, if the distal end surface of the injection part main body 13 is fixed in a state drawn in from the distal end of the exterior 24 as shown by the two-dot chain line in FIG. The distal end surface of the main body 13 may coincide with or protrude from the distal end of the sheath 24, or the distal end surface of the injection section main body 13 may be made spherical so as to protrude from the sheath 24.

"Effects of the invention" As explained above, the livestock catheter of this invention has the ability to
After passing through the tube and being accelerated through a narrow path, the contents pass through injection grooves with different directions and reach the injection hole, so that the contents are given a swirling motion at the injection hole. or collide with each other, thereby easily atomizing the contents, so that even contents that are difficult to atomize themselves can be easily sprayed in atomized form. There are fewer restrictions on things. Furthermore, since the contents (medicinal solution) can be sprayed in the form of a mist, the contents can be sprayed over a wide range of affected areas of livestock, and a sufficient therapeutic effect can therefore be obtained.

[Brief explanation of the drawing]

Figures 1 to 4 are views showing an embodiment of the livestock catheter of this invention, in which Figure 1 is a schematic diagram of the livestock catheter, Figure 2 is a schematic diagram of the attachment part, and Figure 3 is a schematic diagram of the livestock catheter. 4 is a schematic configuration diagram of the injection part, FIG. 4 is a view taken along the - line in FIG. 3, and FIG. 5 is a diagram showing a modification of the livestock catheter shown in FIG. 1,
It is a schematic block diagram of an injection part. 1... Livestock catheter, 2... Aerosol container, 4... Mounting member, 5... Tube, 6...
Injection part, 19... Injection hole, 20... Injection groove, 22
...A narrow alley.

Claims (1)

[Scope of utility model registration request] A mounting part that is detachably attached to a discharge port of a container or device capable of discharging contents, a tube communicating with the discharge port via the mounting part, and an injection part connected to the tip of the tube. The injection part is provided with a narrow passage communicating with the inside of the tube, a plurality of injection grooves communicating with the narrow passage, and an injection hole communicating with the injection groove and opening to the outside,
A catheter for livestock, characterized in that the injection grooves communicate with injection holes in different directions.