JPS62299261A - Stay tube - 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] 3. Detailed description of the invention [Industrial application field] The present invention relates to an indwelling tube with a heating function.

[Prior art] In recent years, it has been possible to diagnose the affected area within the body cavity by inserting it into the deep body cavity from the oral cavity, etc., without the need for surgery, and to treat it using a treatment tool if necessary! i! Endoscopes that can be placed in the X position have become widely used.

The above-mentioned endoscope can also be used when a stricture occurs at the distal end of a bile duct, for example, when a hollow tube-shaped indwelling tube as disclosed in Japanese Utility Model Application Publication No. 60-180442 is placed. used.

Symptoms of bile duct obstruction were prevented by placing a hollow indwelling tube in the narrowed area using the endoscope. This indwelling tube 101 has a lumen 10 as shown in FIG.
2, one end of the tube body 103 has a tapered opening to form a distal end 104, and a flap 105 for preventing slippage is provided near the distal end 104 and on the distal end thereof. is the provision.

[Problems to be Solved by the Invention] However, the conventional indwelling tube 101 described above has problems when the cause of the narrowing of the bile duct or the like is a tumor such as cancer.
The drawback was that it could not fundamentally treat obstructive symptoms.

The present invention has been made in view of the above-mentioned points.
An object of the present invention is to provide an indwelling tube that can cure even when obstructive symptoms are caused by an i.c. ulcer.

[Means and effects for solving the problems] In the present invention, a tubular member that can be retained in a body cavity is provided with a communication path that communicates both ends thereof, and is also provided with a heating means that generates heat by chemical reaction or the like. This creates an indwelling tube that can be drained and cure the tumor.

[Example] Hereinafter, the present invention will be specifically explained with reference to the drawings.

1 and 2 relate to a first embodiment of the present invention, FIG. 1 shows the structure of the first embodiment, and FIG. 2 shows an example of use.

As shown in FIG. 1, the indwelling tube 1 of the first embodiment has a tube body 2 formed into a hollow, flexible tube shape using a material such as polyethylene, and one end of which is tapered to have a narrow diameter. A distal end 3 is formed to facilitate insertion, and flaps 4, 5 for preventing removal from handling are provided protruding outward in a portion adjacent to the distal end 3 and in the vicinity of the rear end.

The center portion 6 of the tube body 2 has a two-layer structure including an inner tube portion 7A and an outer tube portion 7B, and a cylindrical gap between the inner tube portion 7A and the outer tube portion 7B is filled with water and reacts with water. A pyrogenic substance 8 that generates heat by heating, for example, Ocimax (a product name developed by Oshi Kagaku Technological Research Institute and described in, for example, the Nikkan Kogyo Shimbun dated October 15, 1985) is built-in.

The exothermic substance 8 housed between the inner layer and outer layer tube portions 7A and 7B is stored in a small side hole 9 provided in the outer layer tube portion 7B. . . , so that it reacts with the water that enters through the tube 9 and generates heat.

Further, when the indwelling tube 1 is indwelled in the body, a lumen 11 inside the tube allows liquid or gas to pass therethrough.

In the first embodiment configured in this way, it is formed into a tube shape and provided with flaps 4:5.5 to allow 1flffi to be applied to the tubular region inside the body, and also generates heat in a flameless state by reacting with water. It is characterized by being equipped with a pyrogenic substance 8.

Therefore, cancer and other cells are more sensitive to heat than normal cells! If a tumor develops, this first embodiment can be placed in the site and treated by generating heat.

An example of the use of the first embodiment will be described below with reference to FIG. 2.

For example, when an ulcer such as cancer occurs near the end of the bile duct 13, a stricture 14 is formed. If left as it is, the bile duct 13 will become obstructed and the internal pressure will increase, leading to death and a very dangerous situation. In such a case, by using an endoscope, as shown in FIG. The bile duct 13 side and the duodenum 15 side are brought into communication through the lumen 11 of the bile duct 13 side and the duodenum 15 side. The indwelling tube 1 can be installed by passing the distal end of the endoscope through the oral cavity and into the duodenum 15, and using an indwelling tube guide means or the like that is inserted roughly into the channel of the endoscope. This installation method is, for example, disclosed in Japanese Patent Application Laid-open No. 60-2277.
It is disclosed in No. 71.

The ldl &
Tube 1 is equipped with flaps 4:5.5, so
The indwelling tube 1 is prevented from falling out of the stenotic part 13 and is securely indwelled.

By indwelling the indwelling tube 1, bile on the upstream side of the bile duct 13 is discharged to the duodenum 15 side through the lumen 11, thereby preventing obstructive symptoms from occurring.

Generally speaking, since the indwelling tube 1 stores a pyrogenic substance 8, body fluids may leak into the side holes 9, . . . , 9 of the duplex body 2.
It enters the storage area of the exothermic substance 8 through the exothermic substance 8, reacts with the exothermic substance 8, and generates heat. For this reason, the tube body 2 is kept in a humidified state, and the stenotic part 13 that the central part 6 of the tube body 2 contacts can be heated to kill heat-sensitive cancer cells and cure the tumor. .

FIG. 3 shows a second embodiment of the invention.

The first embodiment has a side hole 9° on the outer tube portion 7 side.
9 is a provision, whereas the indwelling tube 2 of the second embodiment
In 1, there is an inner layer on the inner layer tube portion 7A side! An inner hole 22 communicating with 11. ..., 22 is provided.

The rest of the groove structure is the same as that of the first embodiment, and the same parts are designated by the same reference numerals.

In this second embodiment, when bile passes through the lumen 11, the lumen 2
2. . . , enters into the housing of the exothermic substance 8 through the passage 22, reacts with the exothermic substance 8, and causes this substance to generate heat.

This second embodiment has substantially the same effects as the first embodiment.

FIG. 4 shows a third embodiment of the invention.

The one-place tube 31 of this third embodiment has a tube main body 32.
However, instead of having a two-layer structure as in the first or second embodiment, the lumen is divided by a partition 33 into a first lumen 34A and a second lumen 34B.

Thus, one lumen 34B is filled with a pyrogenic substance 8 such as Ocimax. Both ends of the first lumen 34A and the second lumen 34B in which the exothermic substance 8 is housed are open. Therefore, the first lumen 34A can pass liquids such as bile and gas.

Furthermore, when moisture such as bile enters the second lumen 34B, the pyrogen 8 reacts and generates heat. Note that both ends of the second inward direction 34B are closed with a net-like member to allow moisture to pass through, but
The exothermic substance 8 may be prevented from passing through. The effects of this third embodiment are almost the same as those of the first or second embodiment.

FIG. 6 shows a fourth embodiment of the invention.

The indwelling tube 1-741 of the fourth embodiment has a double structure from near the center of the tube body 42 to the end thereof, consisting of an inner tube section 43A and an outer tube section 43B. A ring-shaped or cylindrical cavity 44 formed by the outer circumferential surface of the inner tube section 43A and the inner circumferential surface of the outer tube section 43B is filled with a heat generating substance 8 such as Ocimax.

Note that a click 45 that projects outward is provided on the outer peripheral surface near the end of the inner tube portion 43A. However, the distal end side of the bushing tube 46 used for pushing the indwelling tube 41 from behind and indwelling it in the body can be fitted into the distal end side of the cavity 44 of the lever, and the state shown in FIG. 6 is changed to the state shown in FIG. 7. The bushing tube 46 fitted in this manner is compressed at the click 45 portion, thereby preventing water from entering.

In this fourth embodiment, the bushing tube 46 is fitted into the cavity 44 of the indwelling tube 41 as shown in FIG. Pull out the tube 46. Then, the end side of the cavity 44 becomes open, so body fluids enter, and the exothermic substance 8 packed inside reacts and generates heat.

8 to 10 show a fifth embodiment of the present invention.

This indwelling tube 51 has a tube main body 52 provided with an excretion hole 53 that communicates from the tip to the distal end as shown in FIG.
It is formed by providing two reflux passages 54 and 54. still,
This reflux path 54.54 is closed at the tip.

For example, when the indwelling tube 51 is installed (endoscopically) with its distal end pushing out the narrowed part 14 of the bile duct 13 as shown in FIG. 11, the proximal side becomes outside the oral cavity. This is a long version. However, at this proximal end,
A connecting tube 55 is connected to the drainage hole 53, and a removable base 56 can be attached to the connecting tube 55. Bile and the like can be excreted from the body through this connecting tube 55.

Further, the proximal ends of the reflux channels 54 and 54 in the indwelling tube 51 are connected to connecting pipes 57 and 57, respectively, and a heat-generating fluid 58 such as hot water is sent from one of the connecting pipes 57.
It is designed so that it can be recovered through the other connecting pipe 57.

By circulating the exothermic fluid 58 through the communicating reflux channels 54 and 54, it is possible to humidify and heal the bile duct stricture in the area that has been pushed open by the distal end of the indwelling tube 51, etc. .

12 and 13 show a sixth embodiment of the present invention. 1゜This indwelling tube 61 has a semicircular cross section with both ends communicating with a tube main body 62 of an appropriate length to be indwelled in a constricted area in the body. A through hole 63 is provided. Furthermore, the void section, which has a semicircular cross section and is partitioned by the through hole 63 side and the partition membrane 64, is further partitioned by the partition membrane 65 to form two storage areas, and these storage areas are filled with heat-generating materials such as Ocimax. A substance 8 and water 66 as a fluid that generates heat when mixed with the exothermic substance 8 are housed. Note that the tips of these storage sections are closed. Further, the distal ends are each closed by moving valves 67 and 67 formed of an elastic body or the like.

Each of the movable valves 67 is movable between the distal end of the storage portion and protrusions 68 and 69 protruding slightly forward of the distal end. However, these moving valves 67.67
When the housing is moved from the position shown in FIG. 12 to the rear position where it abuts against the protrusion 68, the intermediate lower portion 1 provided near the end of the partition membrane 65 allows the two storage portions to communicate with each other. As described below, the bushing tube 72 is used to generate heat after the indwelling operation.

That is, the needle 73 embedded in the front end of the bushing tube 72
．． The distal end of the indwelling tube 61 is inserted into the moving valve 67, 67 and pushed by the bushing tube 72 to install the indwelling tube 61 in a predetermined tubular region such as a narrowed part.

When this bushing tube 72 is pulled toward the user's side in order to be removed from the body, this operation causes both moving valves 67.6 to
7 moves rearward (to the left), and both storage sections are brought into communication by the lower part 1. Therefore, the water 66 mixes with the exothermic substance 8 and reacts to generate heat.

FIGS. 14 and 15 show a seventh embodiment of the present invention.

In the indwelling tube 81 of this seventh embodiment, like the indwelling tube 61 of the sixth embodiment shown in FIGS. 12 and 13,
A through hole 83 is provided in the tube body 82 to communicate both ends thereof, and the two storage portions each having a chiseled tip are partitioned nH8.
Each of these compartments can store the exothermic substance 8 and water 85 from the open ends, and the rubber stoppers 8 are stopped from being handled by protrusions 86 and 86.
7, 87, etc. so that it can be closed.

By the way, in this seventh embodiment, the partition membrane 84 is water 85.
It is formed of a semi-permeable membrane etc. through which it passes. Therefore, after the water 85 and the exothermic substance 85 are separated and stored in both storage sections, an exothermic reaction gradually occurs due to the water 85 passing through the semipermeable membrane. In this embodiment, by adjusting the thickness of the partition membrane 84 or forming only a part of the area of the partition membrane 84 with a semipermeable membrane, the amount of water 85 permeation can be adjusted, and the heat generation temperature and heat generation time can be controlled. The advantage of this is that it can be controlled to suit conditions. The indwelling tube 81 is provided with a flap near the distal end and a flap near the distal end.

FIG. 16 shows an eighth embodiment of the present invention.

The indwelling tube 91 of the eighth embodiment does not have the partition membrane 84 in the seventh embodiment, stores the pyrogenic substance 8 and a semi-transparent bag 92 in a storage portion with a closed end, and has a plugged end. It is covered with a lid. The rest is almost the same as the seventh embodiment. This eighth embodiment is almost the same as the seventh embodiment.

Incidentally, instead of putting water 85 in the semi-transparent bag 92, the exothermic substance 8
It is also possible to have a structure that stores the.

FIG. 17 shows a ninth embodiment of the present invention.

The indwelling tube 95 of this ninth embodiment is provided with a first lumen and a second lumen 96 having, for example, a semicircular cross section, similar to that shown in FIG. 4 above. The first lumen serves as an excretion passage through which bile and the like can pass, and the second lumen 96 stores the pyrogenic substance 8 in the semi-permeable drainage method 97.97. ..., 97
It is packed with.

The size of each semipermeable hole 97 is slightly larger than the small hole 99 of the elastic lid 98 at the distal end of the second lumen 96 . still,
The aperture of the cap on the distal side is (much) smaller than on the distal side.

When moisture such as bile enters the semipermeable membrane 97, it generates heat and the reactant cannot pass through the semipermeable membrane, resulting in an increase in the spherical diameter. Accordingly, the ball whose diameter has expanded within the second lumen 96 presses the lid 98, and at this time pushes the small hole 99 wider and is pushed out of the indwelling tube 95. It will then be excreted from the body.

This ninth embodiment allows unnecessary exothermic substances to be discharged from the body after an exothermic reaction. In this case, for example, a substance such as a radioisotope may be mixed in the semi-permeable sphere 97 housed on the tip side so that it can be detected from the excrement that the exothermic action of the exothermic reactant has ended. You can also do it. Further, when excreted, a substance that can be easily identified as excrement may be mixed with the excrement.

Note that the present invention is not limited to Ocimax as the exothermic substance, but may also be a substance that generates heat when exposed to air,
Substances that generate heat due to chemical reactions or the like may be used by mixing special chemicals.

Alternatively, the holes through which moisture can infiltrate may be blocked with a substance that dissolves in moisture, a substance that dissolves in acid, or the like, so that the amount of infiltration of moisture can be adjusted.

In general, an addition reaction of water to an oxide, for example, in the case of calcium, an exothermic reaction such as Ca OHH20-)Ca (OH)2+ exothermic reaction may be used, or a mixture mainly consisting of iron powder and a metal acid salt may be used. is used as a heating element, and heat is generated using the oxidation reaction of iron powder that occurs when water or moisture in the body, etc., and air in the body are brought into contact with the mixture, or heat generation is generated by adding water to an anhydrous salt such as acetic anhydride. You can also use reactions.

Alternatively, the exothermic substance may be covered with a material that allows water vapor to pass through but not liquid, such as a foamed material made of fluoroethylene tetrafluoride, to prevent the reaction product from having an adverse effect on the human body. (As an example of this application, for example, in FIG. 16, the tube portion surrounding the exothermic substance 8 may be made of a foamed material of tetrafluoroethylene).

In addition, the tube body may be made of a tube using the above-mentioned foaming agent, or
A semi-permeable tube may also be used.

Note that the passage through which bile, etc. can pass is not limited to the inner cavity of the tube or a hollow passage, but may be a groove-shaped passage that communicates with both ends.

[Effects of the Invention] As described above, according to the present invention, since a heating means is provided that can heat a tubular member having a communication path with both ends communicating with each other, bile etc. can be discharged and tumors can be treated. You can also.

[Brief explanation of drawings]

1 and 2 relate to a first embodiment of the present invention, FIG. 1 is a sectional view showing the first embodiment, FIG. 2 is an explanatory diagram showing an example of use, and FIG. 4 is a sectional view showing a third embodiment of the present invention, FIG. 5 is a sectional view taken along line A-A' in FIG. 4, and FIG. 6 is a sectional view showing a fourth embodiment of the present invention. 7 is a sectional view showing a bushing tube fitted to the fourth embodiment, FIG. 8 is a front view showing the front end of the fifth embodiment of the present invention, and FIG. 9 is a sectional view showing the bushing tube of the fourth embodiment. 8 is a sectional view taken along line B-[3', FIG. 10 is a sectional view taken along line c-c' in FIG.
The figure is an explanatory diagram showing an example of use of the fifth embodiment, FIG. 12 is a sectional view showing the sixth embodiment of the present invention, and FIG.
-D' line sectional view, FIG. 14 is a sectional view showing the seventh embodiment of the present invention, FIG. 15 is a EE' line sectional view of FIG.
6 is a sectional view showing an eighth embodiment of the present invention, FIG. 17 is a sectional view showing a part of a ninth embodiment of the invention, and FIG. 18 is a sectional view showing a conventional example. 1...II tube 2...Tube body 3...
-Tip part 4.5...Flap 6...Central part 7A...Inner layer tube part 7B...Outer layer tube part 8...Pyrogenic substance 9...Side hole 11...Inner cavity No. 7 Figure 41 Figure 8 Figure 11 Figure 52/Figure 17

Claims (1)

[Claims] 1. An indwelling tube that can be placed in a body cavity, including a tube body having a lumen that communicates with both ends, and a tube provided in a part of the tube body to secure the lumen of the tube body. An indwelling tube characterized by having a heating means. 2. The indwelling tube according to claim 1, wherein the heating means is a flameless fuel that is built into the indwelling tube and generates heat through a chemical reaction. 3. The indwelling tube according to claim 1, wherein the heating means is formed of a reflux path provided within the indwelling tube and a hot fluid that refluxes within the reflux path.