JP2023070755A - Capsule injection device - Google Patents

Abstract

To improve work efficiency in injecting a capsule into an animal.SOLUTION: A capsule injection device 10 according to this disclosure is provided with a capsule holding part 20 which can hold a capsule 90 at a tip of a support pipe 11 to be inserted from the mouth of a cow 100, the capsule 90 is pushed out by making a core material 40 in the support pipe 11 move to a tip side by operation of an operation part 50, and the capsule 90 is injected into the cow 100. Also, the support pipe 11 is provided with a bending deformation part 29 for connecting a main pipe 12 and the capsule holding part 20 to enable bending deformation.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present disclosure relates to a capsule inserting device for inserting, through the mouth, a capsule with a built-in wireless device that resides in the stomach of an animal.

Conventionally, a monitoring method is known in which a capsule with a built-in wireless device for wirelessly transmitting the state of the stomach of an animal is permanently stationed in the stomach of the animal (see Patent Document 1, for example).

JP 2018-74992 A (paragraphs [0035] to [0039], FIG. 2, etc.)

The injection of the capsule into the animal is carried out, for example, by raising the head of the animal, straightening the throat from the mouth, and passing the capsule through the vinyl chloride pipe inserted there. There were times when the capsule stopped midway, making it impossible to drop, and the work efficiency was poor. In view of this, there is a need to improve the work efficiency when injecting capsules into animals.

A capsule injection device according to the present disclosure is a capsule injection device for injecting a capsule with a built-in wireless device that resides in the stomach of an animal through the mouth, comprising: a support pipe inserted from the mouth of the animal to the throat or esophagus; A capsule holding part provided at the distal end of the support pipe and capable of holding the capsule, and a base end of the support pipe connected to the capsule holding part via a core material passed through the support pipe. and a controlled operation unit, wherein the operation of the operation unit switches between a holding state in which the capsule holding unit holds the capsule and a release state in which the capsule is released from the capsule holding unit.

1 is a perspective view of a capsule dosing device of the present disclosure; FIG. Schematic diagram of cattle management method using capsules Sectional view of the capsule injection device Sectional view of the capsule holder Enlarged sectional view of the capsule holder Enlarged cross-sectional view of the connecting portion between the main pipe and the bending deformation portion Enlarged sectional view of the handle Enlarged sectional view of the handle Perspective view of the capsule injection device Sectional view of the capsule injection device Sectional view of the capsule holder Sectional view of the capsule injection device inserted into the cow Sectional view of the capsule injection device inserted into the cow Cross-sectional view of a capsule holding portion according to a modification Cross-sectional view of a capsule holding portion according to a modification

[First embodiment]
Hereinafter, a capsule injection device 10 of this embodiment will be described with reference to FIGS. 1 to 13. FIG. The capsule feeding device 10 shown in FIG. 1 is a capsule that resides in a stomach 100S (specifically, the rumen or reticulum) of a cow 100 (corresponding to the "animal" in the claims). 90 (see FIG. 2).

As shown in FIG. 2, the capsule 90 includes a bottomed cylindrical case 91 at both ends, and a pressure sensor 92 and a wireless device 93 built in the case 91 . The capsule 90 is put into each of a plurality of cows 100 in a barn or ranch, and the pressure data in the stomach 100S measured by the pressure sensor 92 is sent to the user of the manager of the barn or ranch via a communication network or the like via a wireless device 93. Send to terminal 110 . In addition to the pressure sensor 92, the capsule 90 is equipped with a temperature sensor and an acceleration sensor.

As shown in FIGS. 1 and 3, the capsule injection device 10 has a support pipe 11 inserted into the mouth of a cow 100 (see FIG. 2) and a core material 40 inserted through the support pipe 11. are doing. Hereafter, the left side in FIG.

The support pipe 11 has a main pipe 12 that forms about 2/3 of the entire support pipe 11 from the base end of the support pipe 11, and a capsule holding portion 20 positioned at the tip of the support pipe 11. .

As shown in FIGS. 4 and 5, the capsule holding portion 20 includes a protective sleeve 21 and a first connecting portion 25 screwed onto the proximal end portion of the protective sleeve 21 . The protective sleeve 21 has a cylindrical shape with open ends and a uniform outer surface. The inner surface of the protective sleeve 21 is formed with a female threaded portion 21N at the proximal end thereof, and an intermediate protrusion 22 protruding inwardly at the center portion in the axial direction. The side surface on the base end side of the intermediate protrusion 22 is an orthogonal surface 22A perpendicular to the axial direction, and the side surface on the tip side is an inclined surface 22B that is inclined so as to approach the center in the radial direction toward the base end side. It has become. A connecting surface 22C extending parallel to the axial direction communicates between the orthogonal surface 22A and the inclined surface 22B.

Further, the tip of the protective sleeve 21 is a thick portion 21A that bulges inward and becomes thick. The inner diameter between the thick portion 21A and the intermediate protrusion 22 of the protective sleeve 21 is larger than the inner diameter between the intermediate protrusion 22 and the female screw portion 21N.

As shown in FIG. 4, the first connecting portion 25 includes a large-diameter tubular portion 26 thicker than the protective sleeve 21, and a proximal end wall 26A projecting radially inward from the proximal end of the large-diameter tubular portion 26. have. A male threaded portion 26</b>N that is screwed into the female threaded portion 21</b>N of the protective sleeve 21 is formed at the tip of the large-diameter cylindrical portion 26 . The outer surface of the large-diameter cylindrical portion 26 on the base end side from the male screw portion 26N is flush with the outer surface of the protective sleeve 21 . Further, the tip surface 26B of the large-diameter cylindrical portion 26 faces the orthogonal surface 22A of the intermediate protrusion 22 and protrudes radially inward from the orthogonal surface 22A.

A circular through-hole 26K is formed in the center of the base end wall 26A, and a small-diameter cylindrical portion 27 having a smaller diameter than the large-diameter cylindrical portion 26 and being thin protrudes toward the proximal side from the opening edge of the through-hole 26K. . A stepped surface 28 is provided on the inner surface of the first connecting portion 25 to connect the inner surface of the large-diameter tubular portion 26 and the inner surface of the small-diameter tubular portion 27 in a stepped manner.

The protective sleeve 21 is provided with an engaging ring 23 fitted inside. The engaging ring 23 has a cylindrical shape that is shorter than the main body of the protective sleeve 21 and is sandwiched between the orthogonal surface 22A of the intermediate protrusion 22 and the tip surface 26B of the first connecting portion 25 and positioned. The inner diameter of the engaging ring 23 is sized to enable frictional engagement with the capsule 90 . The capsule 90 is inserted through the opening on the distal end side of the protective sleeve 21 and held by the protective sleeve 21 by frictionally engaging with the engagement ring 23 .

In this embodiment, the capsule 90 is slightly tapered from one end (the left end in FIG. 4) to the other end (the right end in FIG. 4). The side surface is also tapered and reduced in diameter. The engagement ring 23 is arranged so that the smaller diameter side is located on the proximal side, and the capsule 90 is also inserted with the smaller diameter side located on the proximal side. By pushing the capsule 90 into the engagement ring 23 with the tapered surfaces in contact with each other, the frictional engagement between the engagement ring 23 and the capsule 90 is strengthened.

In addition, the tip of the protective sleeve 21 is positioned axially outside the capsule 90 held in the protective sleeve 21 relative to the tip of the capsule 90 , and the protective sleeve 21 covers the entire outer surface of the capsule 90 .

As shown in FIG. 3, the main pipe 12 has a cylindrical main pipe body 12A with a diameter smaller than that of the protective sleeve 21, and a second connecting member 15 is attached to the tip of the main pipe main body 12A. As shown in FIG. 6, the second connecting member 15 has a large-diameter cylindrical portion 16 on the base end side and a small-diameter cylindrical portion 17 on the distal end side. A male threaded portion 16N is formed at the proximal end portion of the outer surface of the large-diameter cylindrical portion 16 to be screwed with the female threaded portion 12N formed on the main pipe body 12A. A distal end wall 16A projecting radially inward is provided at the distal end portion of the large-diameter tubular portion 16 . A circular through hole 16K is formed in the center of the tip wall 16A, and the small-diameter cylindrical portion 17 protrudes from the opening edge of the through hole 16K to the tip side.

As shown in FIG. 3, a closing member 18 is attached to the proximal end of the main pipe body 12A. The closing member 18 includes a closing wall 18A that closes the proximal opening of the main pipe body 12A, and a fitting wall 18B that extends from the outer edge of the closing wall 18A to the distal side and fits to the outside of the main pipe body 12A. A through hole 18K is formed in the center of the blocking wall 18A. A plurality of screw holes 18H are formed in the fitting wall 18B, and the closing member 18 is fixed to the main pipe body 12A by tightening screws into the screw holes 18H.

Next, the core material 40 will be described. The core member 40 is linearly movable in the axial direction while being held on the central axis within the support pipe 11 . Specifically, one end of the core member 40 is arranged inside the first connecting portion 25 of the capsule holding portion 20, while the other end is arranged at a position protruding from the base end portion of the main pipe 12 to form the first connecting portion. It is held on the central axis of the support pipe 11 by contacting the small-diameter cylindrical portions 27, 17 of the portion 25 and the second connecting member 15 and the opening edge of the through hole 18K of the closing member 18. FIG.

As shown in FIG. 4 , the tip of the core member 40 is provided with a projecting portion 45 that projects radially outward and faces the stepped surface 28 of the first connecting portion 25 of the capsule holding portion 20 from the distal end side. there is Further, as shown in FIG. 7, a retaining member 46 is fixed to the base end portion of the portion of the core member 40 that is disposed inside the support pipe 11 . The retaining member 46 has a tubular shape and is fitted to the outside of the core member 40 . A portion of the lower portion of the retaining member 46 extending from the central portion toward the proximal end is obliquely cut away, thereby forming an inclined surface 46</b>M that approaches radially inward toward the proximal end in the lower portion of the retaining member 46 . Also, the distal end surface and the upper proximal end surface of the retaining member 46 are perpendicular to the axial direction. The protruding portion 45 and the retaining member 46 restrict the core member 40 from coming off toward the base end side.

As shown in FIG. 3 , the capsule injection device 10 has an operation section 50 for linearly moving the core material 40 with respect to the support pipe 11 . The operation portion 50 has a handle portion 51 fixed to the base end portion of the support pipe 11 and an operation lever 60 pivotally supported by the handle portion 51 .

As shown in FIG. 7, the handle portion 51 includes a handle base 52 made of steel having a U-shaped cross section. One end of the handle base 52 is fixed to the closing member 18 of the support pipe 11 so as to open toward the proximal side, and extends downward from there toward the proximal side. At the lower end of the handle base 52, a pair of side walls 53 fixed to both side walls 52S and extending toward the base end side are arranged. Note that the handle base 52 may be molded integrally with the closing member 18 .

A lock mechanism 55 is provided at the upper end of the handle base 52 . The lock mechanism 55 has a support wall 55A, a lock operation portion 55S, and a lock pin 55P. The support wall 55A is fixed to the upper end of the handle base 52, extends toward the tip side, and then extends slightly downward.

The lock operation portion 55S is formed by bending a band plate into an L shape and has a first side portion 55S1 extending horizontally and a second side portion 55S2 extending downward from the base end of the first side portion 55S1. ing. A protruding piece 55S3 projecting upward is provided at the base end of the first side portion 55S1 of the lock operation portion 55S, and the upper end portion of the projecting piece 55S3 is pivotally supported by the corner portion of the support wall 55A so that the lock operation portion 55S is is rotatable with respect to the handle base 52 .

The lock pin 55P extends vertically, and its lower end is connected to the tip of the lock operation portion 55S. As shown in FIG. 7, a through hole 12K is formed in the lower portion of the main pipe body 12A of the support pipe 11 slightly toward the tip side of the retaining member 46 of the core member 40, and the lock pin 55P is formed in the through hole. It can enter into the main pipe body 12A from 12K and abut on the retaining member 46 from the tip side.

The lock operation portion 55S is biased by an elastic member (not shown) to a first position where the tip of the first side portion 55S1 is located above the base end. At this first position, the upper end portion of the lock pin 55P faces the retaining member 46 of the core member 40, and movement of the core member 40 toward the tip side is restricted. Further, at the first position, the second side portion 55S2 of the lock operation portion 55S is arranged at a position away from the handle base 52. As shown in FIG.

When the lock operation portion 55S is rotated until the second side portion 55S2 abuts against the handle base 52, the lock pin 55P is retracted from the position where it abuts against the retaining member 46, allowing the core member 40 to move to the distal end side (Fig. 8).

As shown in FIGS. 1 and 7 , the operating lever 60 is arranged on the base end side of the handle portion 51 . The operating lever 60 has a pair of opposing walls 61 that face each other in the horizontal direction with the core member 40 interposed therebetween, and a connecting wall 62 that connects the proximal sides of the pair of opposing walls 61 . The pair of opposing walls 61 have a strip shape extending in the vertical direction, and their lower ends are pivotally supported by the base ends of the side walls 53 . The upper end of the opposing wall 61 is positioned above the support pipe 11 . The connecting wall 62 connects the portions of the pair of opposing walls 61 below the core member 40 . A curved wall 63 is provided at the upper end of the connecting wall 62 and is curved upward after extending toward the base end side.

An operating arm 65 is connected to the upper end of the operating lever 60 . The operating arm 65 has a bar shape extending downward from the upper end of the operating lever 60, and the base end of the core member 40 is fixed to the lower end thereof. An elongated hole 60A is formed in the upper end of the operating lever 60, and an engaging pin 65A provided at the upper end of an operating arm 65 is engaged with the elongated hole 60A so as to be capable of direct movement.

As shown in FIG. 8, when the operating lever 60 is rotated to approach the handle portion 51, the operating arm 65 is pushed by the bending wall 63 of the operating lever 60 to rotate, and the lower end of the operating arm 65 Approach the support pipe 11 . As a result, the core material 40 moves to the tip side.

As shown in FIG. 7, when the lock operating portion 55S is arranged at the first position, even if an attempt is made to operate the operating lever 60, the retaining member 46 of the core member 40 comes into contact with the lock pin 55P and further operation is prevented. The lever 60 cannot be pushed. That is, the operation lever 60 is locked when the lock operation portion 55S is arranged at the first position. Then, as shown in FIG. 8, when the lock operation portion 55S is operated and placed at the second position, the lock is released and the operation lever 60 can be operated. As shown in FIGS. 8 to 11, when the operation lever 60 is pushed until the operating arm 65 abuts against the support pipe 11, the tip of the core 40 moves to a position protruding from the tip of the capsule holder 20. As shown in FIGS.

As shown in FIGS. 7 and 8, an elastic member 58 is attached between the handle portion 51 and the operating lever 60 . The elastic member 58 is a coil spring in which a wire is tightly wound. One end of the elastic member 58 is fixed to the upper portion of the handle portion 51, and the other end is fixed to the lower end portion of the operating lever 60, so that the intermediate portion is bent. It's becoming The bending angle of the elastic member 58 (the angle bent from the linear state) is greater when the operating lever 60 is closer to the handle portion 51 (see FIG. 8) than when the operating lever 60 is further away from the handle portion 51 (see FIG. 7). ). As a result, the operating lever 60 is biased away from the handle portion 51, that is, the core member 40 is biased toward the base end side.

The operation portion 50 can be operated with one hand by putting four fingers on the handle portion 51 and gripping the operation lever 60 with the palm of the hand. In addition, by placing the index finger on the lock operation portion 55S, it is possible to unlock the operation portion 50 with one hand while holding the operation portion 50. As shown in FIG.

The capsule dosing device 10 is used as follows. That is, first, the capsule 90 is inserted into the capsule holding portion 20 from the distal end side and frictionally engaged with the protective sleeve 21 (engagement ring 23). Then, the support pipe 11 is inserted into the mouth of the cow 100 from the tip side, and the capsule holder 20 reaches the throat or esophagus of the cow 100 (see FIG. 12).

Then, the lock operation portion 55S is operated to release the lock, and the operation lever 60 is pushed toward the handle portion 51 side. Then, the core material 40 moves to the tip side, the tip of which pushes the capsule 90 out of the protective sleeve 21 (engagement ring 23), the capsule 90 is released from the capsule inserting device 10, and is put into the body of the cow 100 ( See Figure 13).

After the input is completed, if the operation of the operating portion 50 is stopped (if the hand gripping the operating portion 50 is loosened), the operating lever 60 is separated from the handle portion 51 by the elastic force of the elastic member 58, that is, The core member 40 returns to the state where it is positioned on the proximal end side. At this time, since the inclined surface 46M is formed on the lower portion of the retaining member 46 of the core member 40, the lock operation portion 55S of the locking mechanism 55 returns to the first position, and the lock pin 55P faces the retaining member 46. Also, the lock pin 55P is guided by the inclined surface 46M and moves downward, so that the core member 40 and the operating lever 60 can be smoothly returned.

Here, as shown in FIG. 3, in the capsule loading device 10 of the present embodiment, the support pipe 11 connects the main pipe 12 and the capsule holding portion 20, and forms a bending deformation portion 29 capable of bending deformation. I have. The bending deformation portion 29 has a coil shape in which a wire is coaxially wound without gaps. is press-fitted.

Further, the core material 40 is also provided with a bending deformation portion 41 . Specifically, the core member 40 includes a rod member 42 extending from the operating arm 65 of the operating portion 50 to an intermediate portion near the tip in the main pipe 12, and a tip member 43 positioned at the tip of the core member 40. and are connected by a bending deformation portion 41 . The tip member 43 has a columnar shape, and the projecting portion 45 described above protrudes laterally from the tip thereof. Similar to the bending deformation portion 29 of the support pipe 11, the bending deformation portion 41 has a coil shape in which a wire is coaxially wound without gaps, and a rod member 42 and a tip member 43 are press-fitted at both ends thereof.

As a result, the support pipe 11 , together with the core member 40 , bends sideways with respect to the axial direction of the main pipe 12 at the capsule holding portion 20 .

The bending deformation portion 29 of the support pipe 11 is preferably rigid enough to be inserted even if the cow 100 tries to push it out with its tongue. .2 ± 0.1 mm), the outer diameter of the coil is 20 to 30 mm (preferably 22.0 ± 0.5 mm), the material of the wire is stainless steel, and the reaction force at 45 degrees is 40 to 60 N (preferably 49 N ) can be considered. Moreover, the bending deformation portion 29 may be exposed to the outside, or may be covered with a cover (not shown). In the latter case, it is possible to prevent a part of the throat or the like from being caught in the gap between the wires caused by the deformation of the coil.

The configuration of the capsule injection device 10 of the present embodiment is as described above. Next, the effects of the capsule injection device 10 will be described. As described above, the capsule feeding device 10 is inserted through the mouth of the cow 100 while the capsule 90 is engaged with the capsule holder 20 . The capsule 90 is put into the body of the cow 100 by operating the operation unit 50 . The inserted capsule 90 resides in the stomach 100S of the cow 100, and transmits pressure data and the like in the stomach 100S to the user terminal 110 of the manager of the barn or ranch. As a result, it becomes possible to detect at an early stage the cow 100 that has become bloated due to the gas generated in the stomach or the cow 100 that has a sign of bloating.

By the way, conventionally, when this type of capsule is put into the cow 100, for example, the head of the cow 100 is raised, the mouth and throat are straightened, and the capsule is passed through a vinyl chloride pipe inserted there. However, with this method, the capsule stopped in the middle of the vinyl chloride pipe and could not be dropped, resulting in poor work efficiency.

On the other hand, according to the capsule feeding device 10 of the present embodiment, the capsule holding portion 20 at the tip of the support pipe 11 holds the capsule 90, and the capsule holding portion 20 is held by the throat or esophagus of the cow 100. The capsule 90 can be put in by operating the operation part 50, and the working efficiency is improved.

In addition, in the conventional method, it is necessary to keep the cow 100 in a posture with its head raised, which may give stress to the cow 100 . On the other hand, in the capsule feeding device 10 of the present embodiment, since the support pipe 11 and the core material 40 are provided with the bending deformation portions 29 and 41, the support pipe 11 can be inserted without raising the head of the cow 100. However, the bending deformation portions 29 and 41 are deformed along the shape of the throat of the cow 100, and the capsule holding portion 20 can be placed in the throat or esophagus of the cow 100 (see FIG. 12). By operating the operating portion 50 in this state, the capsule 90 is inserted while the bending deformation portion 29 of the support pipe 11 is deformed (see FIG. 13). As a result, the stress given to the cow 100 is reduced.

In addition, since the bending deformation portion 29 is arranged only at a position near the tip of the support pipe 11, the rigidity is higher than that of the structure in which the entire support pipe 11 can be bent and deformed, and the support pipe 11 can be inserted into the mouth of the cow 100. It's getting easier.

Furthermore, in the capsule feeding device 10, the protective sleeve 21 of the capsule holder 20 covers the entire outer surface of the capsule 90, so that the capsule 90 is prevented from being damaged by the cow 100 chewing when the support pipe 11 is inserted. Moreover, since the protective sleeve 21 is configured such that the engaging ring 23 provided therein frictionally engages with the capsule 90, when inserting capsules with different outer diameters, the engaging ring 23 corresponding to the size of the capsule can be inserted. is prepared, other parts can be reused. In other words, the capsule injection device 10 of this embodiment can handle a plurality of types of capsules.

Further, since the operation portion 50 is provided with the lock mechanism 55 that disables the operation of the operation lever 60, it is possible to prevent the capsule 90 from falling out due to the operation of the operation lever 60 by mistake while the support pipe 11 is being inserted. be

[Second embodiment]
14 to 16 show a capsule injection device 10Z of a second embodiment. In the capsule injection device 10Z, parts having the same configurations as those of the capsule injection device 10 of the first embodiment are denoted by the same reference numerals, and descriptions thereof are omitted, and only different points will be described below.

As shown in FIG. 15, in the capsule holding portion 20Z of the capsule loading device 10Z of the present embodiment, a flange 23Z1 projecting radially inward is provided at the proximal end portion of the engaging ring 23Z. A compression coil spring 20C is arranged between the flange 23Z1 and the first connecting portion 25Z, and the engagement ring 23Z is movable toward the proximal end while being biased toward the distal end.

As a result, when the capsule 90 is pushed into the engagement ring 23Z, the engagement ring 23Z moves to the base end side when the tapers are in surface contact with each other and engaged to some extent. In other words, since the force that pushes the capsule 90 into the engagement ring 23Z can be released to the compression coil spring 20C, it is possible to prevent the capsule 90 from being excessively pushed into the engagement ring 23Z. Therefore, the force required when inserting the capsule 90 can be prevented from becoming too large.

In this embodiment, male threads 27N, 17N are formed on the outer surfaces of the small-diameter cylindrical portion 27Z of the first connecting portion 25Z and the small-diameter cylindrical portion 17Z of the second connecting member 15Z. 17N are screwed to both end portions of the bending deformation portion 29 . As a result, both ends of the bending deformation portion 29 are less likely to be deformed, and stress is prevented from concentrating on the ends of the bending deformation portion 29 to cause plastic deformation. Similarly, male threads are formed on the outer surfaces of the bar 42 and the tip member 43, and are screwed to both ends of the bending deformation portion 41, so that stress concentrates on the ends of the bending deformation portion 41. Plastic deformation is prevented.

Further, as shown in FIGS. 14 and 16, the operating portion 50Z of the capsule loading device 10Z of this embodiment is provided with a cover plate 50C. In the operation portion 50Z of the present embodiment, similarly to the operation portion 50 of the first embodiment, when the operation lever 60Z is gripped so as to approach the handle portion 51Z, the operating arm 65 is interlocked to move the core material 40 toward the distal end side. move directly. Although the operation portion 50Z of this embodiment is not provided with the lock mechanism 55, the handle portion 51Z of this embodiment is not directly connected to the operation lever 60Z, and only the handle portion 51Z is gripped. Therefore, it is less likely that the operation lever 60Z will be erroneously operated while the support pipe 11 is being inserted.

[Other embodiments]
(1) The bending deformation portion 29 may have a multi-joint structure, a bellows structure, or may be made of elastomer as long as it is capable of bending deformation.

(2) The entire support pipe 11 may be configured to be bendable.

(3) The operation unit 50 may be provided with a cover that prevents fingers from being caught.

(4) The core material 40 may have a structure such as a wire that can be bent and deformed as a whole.

(5) In the above embodiment, the operating portion 50 is configured to grip the handle portion 51 and the operating lever 60. However, for example, the operating portion integrally attached to the core member 40 can be slid relative to the support pipe 11. It may be configured to operate.

(6) The protective sleeve 21 may directly engage the capsule 90 without the engagement ring 23 .

(7) A configuration in which the operating arm 65 is not provided and the core member 40 is directly connected to the operating lever 60 may be employed.

(8) The configuration may be such that the tip of the capsule 90 is exposed from the protective sleeve 21 .

(9) The capsule 90 may be in a released state when the core 40 is pulled toward the proximal end. For example, as shown in FIG. 17, the tip of the core 40 is provided with an engaging portion 40R that frictionally engages with the capsule 90 as a part of the capsule holding portion 20, while the protective sleeve 21 abuts on the capsule 90. A contact portion 21T is provided, and when the core member 40 is pulled toward the base end side, the engaging portion 40R moves and disengages from the capsule 90 in contact with the contact portion 21T. falling configuration

(10) The core member 40 may be screwed with a portion of the support pipe 11 and rotated to move the core member 40 in the axial direction of the support pipe 11 .

(11) The capsule 90 and the capsule holding portion 20 may be partially screwed together, and the core member 40 may transmit rotation to move the capsule 90 .

(12) As shown in FIG. 18, the capsule holder 20W grips the capsule 90 with a pair of hinged gripping arms 20W1. may be configured to release the

(13) The capsule 90 may be used, for example, to manage the location and number of cows instead of transmitting the pressure data in the stomach. Also, it may be one that is put into animals other than cows or people.

Although specific examples of the technology included in the scope of claims are disclosed in the specification and drawings, the technology described in the scope of claims is not limited to these specific examples. Various modifications and changes of the examples are included, and a part of specific examples is also included.

REFERENCE SIGNS LIST 10 Capsule feeding device 10S Stomach 11 Supporting pipe 12 Main pipe 12A Main pipe body 20 Capsule holding part 21 Protective sleeve 23 Engaging ring 29 Bending deformation part 40 Core material 50 Operating part 51 Handle part 52 Handle base 55 Locking mechanism 60 Operating lever 90 Capsule 100 cow (animal)

A capsule injection device according to the present disclosure is a capsule injection device for injecting a capsule with a built-in wireless device that resides in the stomach of an animal through the mouth, comprising: a support pipe inserted from the mouth of the animal to the throat or esophagus; A capsule holding part provided at the distal end of the support pipe and capable of holding the capsule, and a base end of the support pipe connected to the capsule holding part via a core material passed through the support pipe. and a bending deformation part of a multi-joint structure, a bellows structure, an elastomer, or a coil structure provided only at a position near the tip of the support pipe and capable of bending deformation, wherein the capsule holding portion switches between a holding state in which the capsule holding portion holds the capsule and a release state in which the capsule is released from the capsule holding portion by operating the operating portion.

Claims (9)

A capsule inserting device for inserting through the mouth a capsule with a built-in wireless device that resides in the stomach of an animal,
a support pipe inserted from the animal's mouth to the throat or esophagus;
a capsule holding part provided at the tip of the support pipe and capable of holding the capsule;
an operating portion provided at the proximal end portion of the support pipe and connected to the capsule holding portion via a core material passed through the support pipe;
A capsule injection device that switches between a holding state in which the capsule holding section holds the capsule and a release state in which the capsule is released from the capsule holding section by operating the operating section. Capsule dosing according to claim 1, wherein the support pipe includes a bendable, articulated, bellows, elastomeric, or coiled bendable portion. Device. 3. The capsule injection device according to claim 2, wherein the bending deformation portion is arranged only at a position near the tip of the support pipe. 4. According to any one of claims 1 to 3, wherein the capsule holding portion includes a protective sleeve that covers the entire outer surface of the capsule in the holding state and protects the capsule from chewing by the animal. Capsule dosing device as described. Frictional engagement between the protective sleeve and the capsule results in the retained state;
5. The capsule injection device according to claim 4, wherein the tip of the core material pushes the capsule out of the protective sleeve into the released state by operating the operating portion. said protective sleeve comprising an engaging ring positioned therein;
6. The capsule dosing device according to claim 5, wherein said holding state is achieved by frictional engagement between said engaging ring and said capsule. 7. The capsule loading device according to claim 6, wherein said engaging ring is linearly movable within said protective sleeve and is urged toward the distal end side of said support pipe. The operation unit is
a handle portion fixed to the support pipe and extending in a direction crossing the axial direction of the support pipe;
8. An operation lever rotatably supported by the handle portion, opposed to the handle portion in the axial direction of the support pipe, and connected to the base end portion of the core member. Capsule dosing device according to claim 1. 9. The capsule injection device according to any one of claims 1 to 8, wherein the operation portion is provided with a lock mechanism for switching whether the operation is permitted or not.

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