JPS61168347A - Apparatus for extracting magnet for attracting foreign matter in stomach - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention uses a permanent magnet that has been made to be sucked down by a cow and that has adsorbed foreign metal objects that have remained in the second stomach, while the foreign metal objects are still being adsorbed. It relates to a device that is housed in a cylinder and safely and reliably extracts the extract.

[Conventional technology]

In recent years, there has been a rise in the so-called metal disease in cattle, which occurs when cattle are exposed to foreign metal objects such as nails and wires mixed in their feed, which collect in the second stomach and irritate or protrude the stomach wall through contraction and relaxation movements of the stomach. There are many accidents where cattle get pierced and even damage the heart and other nearby organs, leading to death or disuse of the cattle.

In order to treat or prevent this metal disease, a method has been used in which a rod-shaped permanent magnet is placed in the second stomach of a cow, and metal pieces are attracted to the permanent magnet to alleviate irritation of the stomach wall caused by foreign metal objects. . However, in this method, metals larger than the magnet for adsorbing foreign objects in the stomach, especially long and sharp nails, still irritate the stomach wall and have to be removed from the stomach. In order to remove this type of foreign material together with a magnet, attempts have been made to insert a strong magnet into the second stomach of a cow and extract the metal foreign material together with a magnet for attracting foreign material in the stomach.

In Japanese Patent Publication No. 33-829, a magnet is first stored in a tube that is folded and opens into a funnel shape in the stomach, and after being inserted to the front of the opening of the cow's stomach, it is inserted with a piston. The magnet is pushed out to open the cup in the shape of a funnel. Once this mouth flap is opened, it cannot be closed until it is pulled out, and since it is foldable, the stimulation that each organ of the cow receives from the metal foreign object when it passes through the narrowed area is Inevitable. Passing such a large, open funnel-shaped tube through the narrow part of the pharynx and the flexible esophagus requires a lot of resistance, the cows are extremely fatigued, and there is a danger of falling metal objects along the way, making it difficult to pass through the narrow part of the pharynx and the flexible esophagus. It was impossible to implement.

Furthermore, Japanese Patent Application Laid-Open No. 52-69780 discloses a technique for attracting and pulling out a magnet for attracting a foreign body in the stomach, which has a metallic foreign body adsorbed on the tip of an electric magnet. This is an extremely dangerous method in which the magnet for attracting foreign bodies in the stomach is pulled out with metal foreign bodies still attached. Furthermore, electromagnetic methods tend to generate heat, are dangerous, and cannot be used on live cattle.

[Problem that the invention seeks to solve]

Therefore, we have developed a magnet for attracting gastric foreign bodies that can reliably and safely remove metal foreign bodies from the second stomach without the risk of them falling on the way and without causing unnecessary pain to cows. equipment was needed.

[Means of problem solving]

The present invention solves the above-mentioned problem, and in order to avoid the danger of the metal foreign object and the magnet for adsorbing the gastric foreign object falling during removal from the stomach, it is stored deep inside a metal cylinder. The structure is such that the second
A double-structured flexible thin tube is provided by easily sliding an inner wire inside an outer tube that is longer than the length to the fundus of the stomach, and a foreign metal object is adsorbed to the tip of the outer tube at one end of the thin tube. A cylinder that can hold a magnet for attracting foreign bodies in the stomach is fixed,
The tip of the inner wire is slidably inserted into the cylinder, a permanent magnet is fixed to the tip of the inner wire, and
1. The present invention is characterized in that an operating section is provided at the other end of the thin tube to move the permanent magnet up and down from the cylindrical portion to the vicinity of the cylindrical outlet via an inner wire.

The device for extracting a magnet for adsorbing a foreign body in the stomach according to the present invention has a cylindrical part that attracts and stores a magnet that has a foreign body in the stomach attracted to a strong permanent magnet, and makes it easy to remove the foreign body from the second stomach. It consists of an operating part that controls the vertical movement of the permanent magnet from outside the cow's mouth, and a thin tube that connects the cylindrical part and the operating part.
The cylindrical part has a sufficient volume to easily store the gastric foreign body adsorption magnet while retaining the gastric foreign body adsorbed, is thin and smooth enough to pass through strictures such as the open space, and has an opening in the second stomach. It must be heavy enough to hang down and hard enough to not be deformed by foreign metal objects, and rust-free metals such as stainless steel are preferred.

The tubule has both the rigidity that allows the cylinder to be pushed into the second stomach with its own blade when pushed in from the outside, and the flexibility that allows it to hang down in the second stomach with its opening facing downward. When inserted and removed, it must be smooth enough to not irritate the cow's mucous membranes. Therefore, in the present invention, the thin tube used has a double structure, and the outer tube has at least a spiral structure, and if possible, it is preferable that a smooth wire is further spirally wound around the contact portion of the spiral.

Store the inner wire inside the outer tube leaving some space,
It is preferable that the inner wire slide easily and smoothly within the outer tube. It is also preferable that the inner wire has a spiral structure that has both sufficient rigidity to push out the permanent magnet and flexibility to allow the cylinder to hang down within the second stomach.

After the cylindrical part is inserted into the second stomach, the operating part moves the magnet within the cylinder, captures the gastric foreign body adsorption magnet, and securely stores it within the cylinder. For example, as shown in FIG.
9) is connected to the inner wire (5), the operating rod is slidably housed in a hollow operating sleeve [12] fixed to the tip of the outer tube, and a handle is attached to the side wall of the operating sleeve (12). A guide groove (13) in which the handle (10) can slide is provided, a locking notch into which the handle handle is inserted is provided at both upper and lower ends of the guide groove (13), and the handle is inserted into the upper locking notch (15). ), the permanent magnet (35) is housed in the cylindrical part, and when the handle is engaged with the locking notch (14) at the bottom, the permanent magnet (35) moves to the vicinity of the cylindrical outlet. may be provided.

Furthermore, in order to reliably store the gastric foreign body adsorption magnet that has adsorbed the actual gastric object inside the cylinder, the gastric foreign body adsorption magnet that has adsorbed the gastric foreign body must be captured at the tip of the magnet fixed to the tip of the inner wire. Preferably, a trapping vane is provided which can be guided into the cylinder. This blade opens when the inner wire is pushed out near the cylinder, and when retracted, it captures the gastric foreign body adsorption magnet with the gastric foreign body attached, and is housed in the cylinder to reliably guide it to the cylinder. It is desirable that

The magnet for adsorbing gastric foreign bodies used in the present invention is not particularly limited, but it is preferably rod-shaped or elongated. Further, the magnet fixed to the tip of the inner wire is preferably a strong magnet such as a rare earth magnet or a ferrite magnet. Furthermore, it is preferable to cover the end of the permanent magnet on the cylindrical outlet side with an iron adsorbent and have a shape in which the magnetic force is strongest at the tip, that is, a shape and structure as shown in FIG. 3, which will be described later.

5 to 10 illustrate embodiments of the present invention in relation to anatomical diagrams of a cow. FIG. 5 is an anatomical diagram of a cow, in which 61 is the heart, 62 is the esophagus, 63 is the diaphragm, 64 is the cardia, 65 is the second stomach, 66 is the esophageal groove, 67 is the rumen, 6 is the anatomical diagram of a cow.
8 is the third stomach, and 69 is the fourth stomach.

FIG. 6 shows the cylinder 1 being passed through the esophagus to be pushed into the second stomach. As is clear from FIG. 6, the thin tube 3 requires rigidity to allow the cylinder 1, which is thicker than the esophagus 62, to be pushed into the esophagus.

FIG. 7 shows the cylinder 1 passing through the cardia 64 and entering the second stomach 65. After passing through the cardia, the thin tube 3 must have the flexibility to bend at a nearly right angle and allow the cylinder 1 to fall into the second stomach. If this flexibility is insufficient, the cylinder will continue to advance and irritate other visceral walls, making it impossible for the cylinder to reach the second stomach fundus where the gastric foreign body adsorption magnet attracts metal foreign objects.

After the cylinder 1 has entered the depths of the second stomach sufficiently as shown in FIG. 8, the inner wire 5 is pushed out from the outside by the operating section, and the permanent magnet housed in the cylinder is pushed out to the cylinder outlet. At the same time, the vanes open at the cylindrical outlet. At this time, the magnet 50 for attracting the actual gastric object is attracted to the permanent magnet in a state in which a metal foreign object (not shown) is attracted, and furthermore, the magnet 50 is adjusted by the blades to a position where it can be easily accommodated in the cylinder. When the inner wire is pulled up using the operating section, the magnet for adsorbing foreign matter in the stomach is housed in the cylindrical section together with the permanent magnet and the folded blades. If storage is insufficient, this operation can be repeated as many times as needed from outside the cow.

FIG. 9 shows a state in which the thin tube 3 is being pulled up after the magnet for attracting gastric foreign matter has been securely accommodated in the cylinder together with the metal foreign matter.

If the magnet for adsorbing gastric foreign matter is reliably housed within the cylinder, it can safely pass through a constricted part such as the cardia 64 as shown in FIG. 10.

〔Example〕

FIG. 1 is a side view of the entire device with some notches provided in the main parts and most of the thin tubes omitted except for both ends, and FIG. 2 is a sectional view taken along the line nn in FIG. 1. The extraction device of the present invention is broadly divided into a cylinder 1, an operating portion 2, and a thin tube 3 connecting these.

First, the thin tube 3 will be explained. It consists of an outer tube 4 having a spiral structure and an inner wire 5 that can easily slide inside the outer tube 4. The structure of the thin tube 3 is shown in FIG. 3, which is an enlarged cross-sectional view of the cylindrical portion, and the outer tube 4 is formed by winding a circular wire 6 in a single row in a helical manner. The outer wire 7 was wound helically. Therefore, when one end of the outer tube 3 is pressed, the adjacent outer peripheral wires come into close contact with each other, giving the outer tube 3 the rigidity to be pushed into the stomach from the outside. Moreover, since it is spiral, it does not lose its flexibility, and the flat outer wire does not irritate the stomach wall. The inner wire 5 used was one in which the outer periphery of a bundle consisting of a large number of wires was wound spirally with a flat metal ribbon 8. Therefore, even if the thin tube 3 is considerably curved, the inner wire 5 can freely slide inside the outer tube 4.

Next, the operation section 2 will be explained. The end of the inner wire 5 on the operating section side is firmly fixed to the operating rod 9. The other end of the operating rod 9 is bent at a substantially right angle to form a handle handle 10, and the handle 1 is attached to the tip of the handle 10.
Fix 1. Reference numeral 12 denotes a hollow operating sleeve, and a guide 1ji13 on which the handle 10 can freely slide is bored in the length direction at one location on the side circumference.

Reference numeral 14 indicates a locking notch when the magnet is pushed out, and 15 indicates a locking notch when the magnet is retracted, and these are provided at both upper and lower ends of the guide i13 so as to be continuous with the guide groove. 16
is a stopper fixed to the operating loft 9. Reference numeral 17 denotes a cap, which is connected to a locking member 20 that covers at least a portion of the locking notch 15 by the elastic force of a crown portion 18 screwed onto the operating sleeve 12 and a spring 19 provided on the outer periphery of the operating sleeve 12. Consisting of

Reference numeral 21 indicates a stop pin that defines the position where the locking member 20 covers the locking notch 15, and 22 indicates a screw that fixes the handle 10 to the handle 11.

Reference numeral 23 denotes a guide sleeve in which the outer tube 4 is fixedly fixed and stored, and an inner wire 5 is disposed at the tip inside the outer tube.
An operating rod 9 to which is fixed is slidably inserted.

A connecting member 24 connects the operating sleeve 12 and the guide sleeve 23, and is screwed onto the outer periphery of the operating sleeve 12. 25 is a set screw for the outer tube.

Next, the cylindrical portion will be explained. FIG. 3 is an enlarged sectional view of the cylindrical portion, and FIG. 4 is a sectional view taken along the line IV--IV in FIG. 30 is a cylindrical mounting member, the base is approximately equal in thickness to the thin tube 3, the tip is widened in a trumpet shape to a thickness that can be combined with the cylinder l, a space is provided inside, and it is fixed to the tip of the outer tube 4. . To attach the cylinder, the cylinder 1 was screwed onto the member 30. The cylinder l is made of stainless steel, and has a blade opening protrusion 31 protruding inwardly from its opening. The inner wire 5 is longer than the outer tube 4 when the magnet portion is retracted to the innermost part, and a push-out plate 32 is fixed to the tip. The tip of the extruded plate 32 is further opened in the center, and a magnet insert 33 having a cylindrical fitting part is tightly attached to the cylindrical opening side, and a cylindrical strong magnet insert 33 having a cylindrical space in the center is attached to the fitting part. A permanent magnet 34 is inserted. The extrusion plate 32 and the magnet insert 33 were fixed with screws 26. The magnet insert 33 and the permanent magnet 34 are covered with an iron adsorbent 35 having a cylindrical space in the center. 36 is an adsorbent 35, a permanent magnet 34, a magnet insert 33, and an extrusion plate 3
A gap 37 is provided between the tip of the screw 36 and the tip of the inner wire. 38 is permanent magnet 3
4 and the screw 36. Reference numeral 39 denotes a sliding body which slides within the cylinder 1, and has substantially hemispherical protrusions 40 protruding inward at equal intervals as shown in FIG. In this embodiment, four locations are provided, which corresponds to the number of long blades 41. The long blade leg portion 42 is curved into a circumferential surface having a radius slightly larger than that of the protrusion 40, and is curved in the shape of a circumferential surface having a radius slightly larger than that of the protrusion 40.
0 and is in point contact with the protrusion 40.

In this embodiment, an auxiliary blade 43 is further provided at an intermediate position between the long blades. A recess 44 is carved in the outer circumferential surface of the auxiliary blade attachment portion of the magnet insert 33, and the leg portion 45 of the auxiliary blade 43 is narrowed and tightly attached to the outer periphery of the magnet insert 33. is bent inward to engage with the recess 44. Reference numeral 47 denotes a blade holder provided on the outer periphery of the magnet insert 33, the leg part of which is fixed by a screw 48, the tip contacts near the tip 46 of the leg part 45 of the auxiliary blade 43, and then opens outward. . Therefore, the auxiliary blades 43 can always move back and forth, but when housed in the cylinder 1, they are in contact with the inner periphery of the cylinder and in a closed state.

50 is a magnet for attracting foreign matter, 51 is a metallic foreign matter, and 52 is a particularly large metallic foreign matter.

The operation of this embodiment will be explained below.

Since the operating rod 9 is directly connected to the inner wire 5,
Due to the flexibility of the inner wire, the operating rod 9 can be directed to a certain extent. Therefore, the handle handle 10 is set so that it is within the guide groove 13, but it is approximately 90 mm.
It can be rotated easily. When the handle 11 is in the position shown in FIG. 1, the handle 10 is rotated approximately 90 degrees and fitted into the locking notch 14, the permanent magnet 34 is pushed out, and the blades are in an open state. When inserting into the stomach of a cow, rotate the handle 11, slide it in the guide groove 13 and pull it up to the upper limit, rotate it about 90 degrees in the opposite direction and fit it into the locking notch 15, as shown in FIG. position as shown in the imaginary line. At this time, the cap 17 is pushed down by the elastic force of the spring 19, a gap is created between the crown part 18 and the locking member 20, the locking member 20 covers the locking cap 15, and the handle rotates naturally. This prevents the guide groove 13 from sliding.

In this state, the cylindrical portion is inserted into the second stomach of the cow.

The circumference of the cylinder 1 is smooth, the cylindrical portion is sufficiently heavy, the outer tube 4 of the thin tube 3 is also flexible, and the outer wire is rigid, so insertion is relatively easy. Inside the second stomach, the cylindrical portion is placed in a sagging position with the opening facing down due to its weight.

After being inserted into the second stomach of a cow, the spring 19 is compressed to compress the locking member 20 in the direction of the crown 18 and the locking notch 15 is inserted.
, rotate the handle 11, slide the outer tube 13, and lock the handle in the position shown by the solid line in FIG. During this operation, the thin tube is a double tube and the inner wire is also slippery, so it does not irritate the cow's mucous membrane. When the handle is pushed down, the sliding body 39 slides on the inner surface of the cylinder 1 and comes into contact with the blade opening protrusion 31.

Since the sliding body 39 and the magnet fitting insert 33 are not fixed in any way, the sliding body 39
The relative positions of the magnet inserts 33 are shifted and the magnet inserts 33 are relatively protruded. As a result, the point contact position between the leg portion 42 of the long blade 41 and the projection 40 moves, and the long blade 41 rotates along the upper outer circumference of the projection 40, opening at the cylindrical tip as shown in FIG. state.

The auxiliary blades 43 are not particularly fixed, and their legs are slightly in contact with the blade presser 47, so when the long blades 41 open, they are pushed by the long blades and open further.
The center adsorbent 35 is surrounded by blades without gaps. The shape and structure of the permanent magnet and the attracting body are such that the magnetic force at the top of the attracting body is maximum, so that even if it is forcefully attracted to other parts, it will move to the top.

When the adsorbent 35 protrudes in this manner and the blades are in an open state, the magnet for adsorbing foreign matter in the stomach located nearby is attracted to the top of the adsorbent while keeping the foreign matter adsorbed.

When the handle 11 is pulled up again, both the long blade and the auxiliary blade touch the inner surface of the cylinder 1 and close, and the relative positions of the sliding body 39 and the magnet insert 33 are returned to their original positions, and the foreign object is removed as shown in FIG. The gastric foreign body attracting magnet 50 is drawn into the cylinder in a state in which the gastric foreign body is attracted. At this time, the shape of the adsorbent 35 is as shown in FIG. 3, iron is used as the material, and
Because a strong rare earth magnet was used as the magnet, the adsorption body 35
There is no metal or foreign matter attached to the side periphery of the blade, and there is no risk of the blade failing to close. If the cylindrical part is removed from the cow in this state, large metal foreign objects can also be removed safely and reliably. Even when passing through a narrowed part of the body, there is no risk of it falling because it is protected within the cylinder.

In this example, the length of the cylinder l is such that the tip of the permanent magnet slightly protrudes when the magnet for adsorbing gastric foreign matter is attracted, but as shown by the dashed line in Fig. 3, most of the attracted foreign matter is It may be long enough to be hidden; in other words, it needs to be long enough to protect the magnet and the attracted foreign object from falling when passing through a constricted part of the body during extraction. In this embodiment, a 0-type ring-shaped magnet was used as the magnet for attracting foreign bodies in the stomach, but it goes without saying that a normal bar-shaped magnet would have the same effect. Further, although this embodiment has been described in detail, the intended purpose can be achieved even with a structure that includes only a permanent magnet and a cylinder and no blades. Moreover, the number and shape of the blades can be any number,
Other known methods can be used for the attachment mechanism.

The structure of the operation part is not limited to this embodiment, and any structure that can reliably move the inner wire up and down is sufficient.
For example, the operating rod 9 may be made longer and a handle may be directly fixed to the tip of the operating rod 9.

〔Effect of the invention〕

With the present invention, which stores a magnet for attracting foreign bodies in the stomach and a metal foreign body in a cylinder, it is possible to safely and reliably remove metal foreign bodies in the stomach of a cow together with the magnet for attracting foreign bodies in the stomach without the risk of them falling off on the way. Became.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of the entire structure with some notches in the main part and most of the thin tubes are omitted except for both ends, and FIG. Figure 3 is an enlarged cross-sectional view of the cylindrical part, Figure 4 is a cross-sectional view taken along the N-rV line of Figure 3, Figure 5 is an anatomical diagram of a cow, Figures 6 to 10 are The relationship between the stomach and the cylinder is shown in Fig. 6, where the cylinder is being pushed in, Fig. 7, where the cylinder has passed through the cardia, and Fig. 8, where the magnet for attracting foreign bodies in the stomach is being attracted. FIG. 9 is an explanatory view showing a state in which the cylinder is being pulled up, and FIG. 10 is an explanatory diagram showing a state in which the cylinder is being pulled out after passing through the esophagus. In the drawings, 1 is a cylinder, 2 is an operating section, 3 is a thin tube, 4 is an outer tube, 5 is an inner wire, 9 is an operating rod, 10
11 is a handle, 12 is an operating sleeve, 17 is a camp 23 is a guide sleeve, 30 is a cylindrical mounting member, 33 is a magnet insert, 34 is a permanent magnet, 35 is an adsorbent, 36 is a screw, 39 11 is a moving body, 40 is a protrusion, 41 is a long blade, 43 is an auxiliary blade, 50 is a magnet for attracting foreign objects, 51 is a metal foreign object, 5
2 is a particularly large metal foreign object, 63 is a diaphragm, 64 is a cardia, and 65 is an rumen. Patent applicant Denka Pharmaceutical Co., Ltd. Representative Patent attorney Sadako Suzuki Figures 5 and 6

Claims (1)

[Claims] (1) A flexible thin tube with a double structure is provided by inserting an inner wire into the outer tube, which is longer than the length from the cow's mouth to the fundus of the second stomach, and the outer tube is inserted into the outer tube at one end of the thin tube. Fixing a cylinder into which a magnet for gastric foreign body adsorption with a metal foreign body adsorbed can be placed at the tip of the tube, slidingly inserting the tip of the inner wire into the cylinder, fixing a permanent magnet to the tip of the inner wire, and A device for extracting a magnet for attracting foreign bodies in a cow's stomach, which is provided at the other end of the thin tube with an operating part that moves the permanent magnet up and down from the back of the cylinder to near the exit of the cylinder via an inner wire.