JP3699791B2 - Catheter, dysphagia treatment tool using catheter, and catheter fixing tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a catheter, a device for treating dysphagia using a catheter, and a catheter fixture.
[0002]
[Background Art and Problems to be Solved by the Invention]
Conventionally, various feeding catheters have been used to deliver nutrients through the nasal cavity or oral cavity, through the esophagus and into the stomach. Conventional feeding catheters are made of a relatively hard material that does not deform due to pressure on the pharynx or esophageal wall when inserted into the body through the nose or mouth.
[0003]
Therefore, there are problems that the patient is painful at the time of insertion and the nasal mucosa is damaged. In addition, there is a sense of incompatibility when the catheter is placed, and the esophageal wall and the like continue to be pressed. Such compression of the esophageal wall or the like not only causes esophageal ulcer and bleeding, but also causes a decrease in the function of the esophageal sphincter and causes a decrease in peristaltic movement, so that the contents of the stomach and esophagus are likely to flow backward. As a result, food is sent to the trachea instead of the esophagus, causing so-called aspiration and causing aspiration pneumonia.
[0004]
On the other hand, patients suffering from dysphagia due to traffic accidents, strokes, neurological diseases, etc. often depend on enteral nutrition, but severe dysphagia causes less invasiveness and other reasons such as less invasiveness. Nasal tube feeding is given. Here, swallowing means that food or drink is sent from the oral cavity to the pharynx, and further down the esophagus to the gastric cardia.
Such long-term administration of nasal tube feeding causes atrophy of swallowing-related muscles (esophageal sphincter muscles, etc.), emotional obesity, intellectual decline, etc. Therefore, medical improvement is desired.
[0005]
In the case of severe dysphagia, rehabilitation of residual functions may be performed by an expert. For such rehabilitation,
(a) (1) brushing, wiping with mouth rinse, (2) honey massage to keep the oral cavity clean and increase mucosal sensitivity, or
(b) To stimulate the masticatory muscles and to bring out the movement of the tongue (1) Cold stimulation massage in the oral cavity with ice wrapped in gauze, (2) Taste stimulation with lemon juice
Etc.
[0006]
However, rehabilitation for dysphagia cannot be said to be effective in practice, and requires a great deal of manpower and perseverance. Therefore, rehabilitation for dysphagia has not spread widely, and development of a treatment method for dysphagia is strongly desired.
Further, conventionally, in order to prevent the catheter from being buried in the body when inserted into the body through the nasal cavity, the catheter outside the nostril has been fixed to the face or the like with tape. For this reason, there existed a problem that there existed discomfort and necrosis occurred in the site | part where the tape was affixed.
[0007]
The object of the present invention is to reduce the pain when inserted into the body through the nasal cavity or oral cavity and indwelling feeling without placing pressure on the esophagus, etc., and therefore does not cause functional deterioration of the esophageal sphincter, etc. To provide a nutritional catheter capable of preventing the backflow of stomach and esophagus contents.
Another object of the present invention is to provide a catheter having the same action as the above-mentioned nutritional catheter and also having a functional treatment for dysphagia.
[0008]
Still another object of the present invention is to provide a device for treating dysphagia using a catheter capable of functional treatment for dysphagia.
Still another object of the present invention is to provide a fixture capable of fixing a catheter without using a tape.
[0009]
[Means for Solving the Problems]
  The catheter of the present inventionWhen inserted into the body via the nasal cavity or oral cavity, a tubular catheter having a cross-sectional shape that is deformed flat by the internal pressure of the pharynx and esophagus, or a cross-sectional shape that has been formed flat in advance, the catheter Provided in a part of the longitudinal direction of the catheter, is inflatable in an outward direction and an inward direction orthogonal to the longitudinal direction of the catheter, and closes the lumen of the catheter in the inflated state. A possible balloon part, a gas passage hole that is provided in the tube wall of the catheter and feeds gas into the balloon part, and a thin-walled part provided upstream of the balloon part in the gas inflow direction of the catheter. A fluid is flowed down and stored in the catheter in a state where the lumen of the catheter is blocked by the inward expansion of the balloon portion. When it is, the thin portion, characterized in that expands the outer direction.
  The catheter isIt is a tube that is inserted into the body through the nasal cavity or oral cavity, and has a flexibility such that the cross-sectional shape is deformed flat by the internal pressure of the pharynx and esophagus, or the cross-sectional shape is formed flat from the beginning It is what.
  As described above, the catheter of the present invention is flexible so that the cross-sectional shape is deformed flat, or the cross-sectional shape is formed flat, thereby reducing pain during insertion and discomfort during placement, There is no pressure on the inner wall of the esophagus or the like. Therefore, esophageal ulcer and bleeding can be suppressed, and a decrease in peristaltic movement due to a decrease in the function of the esophageal sphincter can be prevented. Further, since the cross section is flat, it is possible to prevent the contents in the stomach and esophagus from flowing back through the catheter. Furthermore, the catheter of the present invention can prevent the backflow of contents in the stomach and esophagus due to a decrease in function of the esophagus and stomach sphincter.
[0010]
  The catheter of the present invention can be used as a nutrition catheter for replenishing nutrients, a catheter for treating dysphagia, and the like.
  Further, the catheter of the present invention is provided with a balloon part that is inflatable in an outward direction perpendicular to the longitudinal direction, and a gas passage hole for sending a gas for inflating the balloon part. Provided in the tube wall along the longitudinal directioning.
[0011]
By inflating the balloon part, the balloon part gives pressure stimulation to a sensory receptor that induces a swallowing reflex existing in the pharynx and / or a sensory receptor that induces peristaltic movement existing in the esophagus part. Can be used. In order to apply pressure stimulation to the sensory receptor, the balloon portion may be provided at an effective site. It is preferable to provide one or more balloon portions along the longitudinal direction. When two or more balloon parts are provided, it is preferable to provide a gas passage hole independently in each balloon part so that these balloon parts can be inflated sequentially or simultaneously.
[0012]
  Also, the balloon partIsThe catheter can be inflated outward and inward, and the balloon portion is inflated inward to close the lumen of the catheter.IsIn addition, a thin-walled portion is provided on the upstream side of the balloon portion, which flows down in the catheter and expands outward by the fluid stored by the expansion of the balloon portion.Be. In this case, pressure stimulation can be applied not only by the expansion of the balloon part but also by the expansion of the thin part.
[0013]
  The catheter of the present invention may be a catheter for indwelling the esophagus, and in this case, pressure stimulation can be applied to a sensory receptor that induces peristaltic movement of the esophagus from the esophageal entrance to the stomach.
  The present invention also provides a dysphagia treatment tool using the catheter.
  The device for treating dysphagia according to the present inventionAsIs
(1) The tube wall has a stretchable structure that can expand outward, and when inserted into the body via the nasal cavity or oral cavity, the cross-sectional shape is deformed flatly by the internal pressure of the pharynx and esophagus, or in advance A tubular catheter having a flat cross-sectional shape, a pump for pressing a lump into the catheter, and moving the catheter while pressurizing the lump, and a press fit into the catheter and the catheter By moving inside, the peristaltic receptor that induces the swallowing reflex present in the pharynx of the body and / or the peristaltic movement of the esophagus that exists in the esophagus part of the body is induced while the tube wall is expanded outward. A lump that gives pressure stimulation to the sensory receptor, and the catheter is a nutritional catheter for replenishing nutrition,
(2) When inserted into the body through the nasal cavity or oral cavity, the tubular catheter is formed such that the cross-sectional shape is deformed flat by the internal pressure of the pharynx and esophagus, or the cross-sectional shape is previously formed flat, A sensory receptor provided in a part of the longitudinal direction of the catheter, inflatable in an outward direction orthogonal to the longitudinal direction, and inducing a swallowing reflex present in the pharynx in the body in the expanded state A balloon part capable of applying pressure stimulation to the balloon part, a balloon driving device or syringe for sending gas into the balloon part, and a balloon part provided in the tube wall of the catheter, from the balloon driving apparatus or syringe to the balloon part Dysphagia treatment, characterized in that the catheter is a nutrition catheter for replenishing nutrients. Tools,
(3) When inserted into the body through the nasal cavity or oral cavity, the tubular catheter is formed such that the cross-sectional shape is deformed flat by the internal pressure of the pharynx and esophagus, or the cross-sectional shape is previously formed flat, Perception provided on a part of the longitudinal direction of the catheter, capable of inflating outward and inward perpendicular to the longitudinal direction, and inducing swallowing reflexes present in the pharynx in the body in the inflated state A balloon part capable of applying pressure stimulation to the receptor and capable of closing the lumen of the catheter in the inflated state, and a balloon driving apparatus for feeding gas into the balloon part Or a syringe, a gas passage hole provided in the tube wall of the catheter, and for sending gas from the balloon driving device or syringe to the balloon part, and the catheter A fluid that flows down into the catheter, and the catheter is provided upstream of the balloon portion in the flow direction of the fluid from the catheter, and the balloon portion is inflated inward by the gas. A dysphagia treatment tool comprising: a thin-walled portion capable of expanding the tube wall in the outward direction by the fluid when the fluid flows down therein;
Is mentioned.
[0014]
  The catheters used for the dysphagia treatment tool are either flattened in cross-sectional shape due to the internal pressure of the pharynx and esophagus, or formed flat from the beginning.
  PreviousThe catheter isCan be used in nutrition catheters to replenish nutrients, andIt may be for esophageal detention.
  The catheter has a balloon part that is inflatable in an outward direction perpendicular to the longitudinal direction in a part of the longitudinal direction, and a gas passage hole for sending a gas for inflating the balloon part in the longitudinal direction. It may be provided in the tube wall along.
  The balloon part can be used to provide pressure stimulation to a sensory receptor that induces a swallowing reflex existing in the pharynx in the body by inflating the balloon part. In order to apply pressure stimulation to the sensory receptor, the balloon portion may be provided at an effective site. It is preferable to provide one or more balloon portions along the longitudinal direction. When two or more balloon parts are provided, it is preferable to provide a gas passage hole independently in each balloon part so that these balloon parts can be inflated sequentially or simultaneously.
  In addition, the balloon portion can be inflated in the outward and inward directions of the catheter, and the lumen of the catheter is blocked by the inward expansion of the balloon portion, and the inside of the catheter is disposed upstream of the balloon portion. A thin portion that flows down and expands outward by the fluid stored by the expansion of the balloon portion may be provided. In this case, pressure stimulation can be applied not only by the expansion of the balloon part but also by the expansion of the thin part.
  The catheter in the present invention is preferably formed of a hydrophilic polymer such as ethylene-vinyl alcohol copolymer (EVA) or polyvinyl alcohol hydrogel, and at least the surface of the catheter is coated with the hydrophilic polymer or hydrogel. It may be. In this case, the uncomfortable feeling when the catheter or the device for treating dysphagia is placed in the patient's esophagus or the like can be alleviated, and ulcers can be prevented from forming on the esophagus wall or the like.
[0015]
The catheter in the present invention may contain an antibacterial agent or an anti-inflammatory agent. When a catheter comes into contact with the esophageal wall or the like for a long time, compression by the catheter causes inflammation at the contact site and causes ulceration, or bacteria grow on the catheter. However, when an antibacterial agent or anti-inflammatory agent is contained in the catheter, the antibacterial agent or anti-inflammatory agent is eluted (released), so that the above-mentioned ulcer formation and bacterial growth can be suppressed.
[0016]
The catheter of the present invention may contain a swallowing reflection accelerator. In this case, since the swallowing reflex accelerator is eluted (released) from the catheter, the swallowing disorder can be treated more effectively.
The catheter of the present invention may be wound around a core rod with a flat cross-sectional shape, and may be held in a state of being wound with a fixed substance that dissolves easily when placed in the body. In this case, since the diameter of the catheter becomes smaller, it can be easily inserted into the patient's pharynx and esophagus through the nasal cavity or the like. When the catheter is placed in the body, the adhering substance dissolves in the body, so that the shape of the catheter returns to the state before being wound around the core rod.
[0017]
The fixture of the present invention is a cylindrical main body fixed to the outer surface of the catheter and held in the nasal cavity,
The fixing plate is coupled to the tip of the main body and can be deformed in accordance with the shape of the surface of the nose so that it can follow the surface of the nose.
Thus, in the fixing device of the present invention, the cylindrical main body fixes the outer surface of the catheter, is held in the nasal cavity, and the fixing plate coupled to the distal end of the main body is attached to the surface of the nose. The catheter can be easily held in the nasal cavity and can be prevented from being buried in the body. In addition, by using the above-mentioned fixing tool, it is possible to reduce the uncomfortable feeling when the catheter is fixed with a tape and the risk of necrosis occurring at the site fixed with the tape. Furthermore, by using the above-mentioned fixing tool, it is possible to remove the catheter from a balloon driving device that feeds air into the catheter or a pump that injects nutrients, concentrated liquid food, etc., except when using the catheter. There is an advantage that the patient is not always restrained by the drive device, the pump, or the like, and the mental pain of the patient can be reduced.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a cutaway perspective view showing an embodiment of the catheter of the present invention. As shown in the figure, the cross-sectional shape of the catheter 1 (and its lumen 1a) of the present invention is preferably a flexible one whose cross-section is deformed into a flat shape by the pressure of the pharynx or esophageal wall. This is based on the fact that the walls on both sides of the pharynx and esophagus are almost stuck to each other except when food or drink passes. For example, in the case of a rigid catheter that maintains a cross-sectional shape such as a circular shape that is not flat, when the catheter is left in the patient's body for a long period of time, the esophageal wall or the like continues to be compressed. As a result, not only esophageal ulcer and bleeding occur, but also the function of the esophageal sphincter is reduced and the peristaltic movement for swallowing food is reduced, which is not preferable. This is not preferable because a back flow of the contents of the is generated.
[0019]
In the present invention, the catheter 1 may be processed into a flat cross section from the beginning. Examples of such a processing method include a method of extruding in a flat shape and heat pressing into a flat shape.
The material of the catheter 1 is not particularly limited. For example, polyvinyl alcohol (PVA); polyvinyl acetate; polyolefin such as polyethylene; ethylene-propylene copolymer, ethylene-vinyl alcohol copolymer (EVA), ethylene-vinyl acetate. Polyolefin copolymers such as copolymers; Halides such as polyvinyl chloride; Polyurethanes; Polyamides; Thermoplastic resins such as various elastomers; Natural rubber latex; Silicone rubber; Hydrogels such as poly-2-ethylhydroxymethacrylate Can be mentioned. In particular, when a hydrophilic polymer such as ethylene-vinyl alcohol copolymer (EVA), polyvinyl alcohol (PVA), polyvinyl pyrrolidone, or polyacrylamide is used, or when polyvinyl alcohol hydrogel is used, the catheter 1 is placed in the esophagus or the like. It can alleviate the sensation of foreign matters and prevent ulcer formation.
[0020]
FIG. 2 shows a state in which the catheter 1 of the present invention is used for treating dysphagia.
This catheter 1 is provided with two balloon portions 4 and 5. The catheter 1 is inserted into the body of the patient 3 through the nasal cavity, and one end on the outside of the body is connected to the balloon driving device A, a syringe and the like via the tube 2, and pressurized gas is applied to the balloon portions 4 and 5 provided in the catheter 1. (Air, nitrogen gas, etc.)
[0021]
As a result, the balloons 4 and 5 are repeatedly inflated and contracted to positively apply pressure stimulation to the centripetal sensory receptor that induces the swallowing reflex distributed in the pharynx 6. It becomes possible.
At this time, it is preferable to adjust the time during which the balloons 4 and 5 block the airway so as not to disturb the breathing of the patient 3.
[0022]
The positions of the balloon portions 4 and 5 are preferably between the root of the tongue and the entrance to the esophagus, and the length is slightly different depending on the patient, but is about 10 to 23 cm from the nostril. Moreover, the volume of each balloon part 4 and 5 is not particularly limited, but may be about 10 to 30 ml.
In addition to the device A for driving the balloon, it is also possible to use a pump (not shown) or the like to inject nutrients, concentrated liquid food, etc. into the lumen 1a of the catheter 1 to supply the patient 3 with nutrition. Is possible.
[0023]
Details of the balloon portions 4 and 5 are shown in FIGS. 3 (a) and 3 (b) show the balloon part when it is deflated, and FIGS. 4 (a) and 4 (b) show the balloon part when it is inflated. As is apparent from these drawings, pressurized gas passage holes 7 and 8 for sending the pressure gas from the balloon driving device A to the two balloon portions 4 and 5 are provided in the tube wall of the catheter 1, respectively. It has been. The balloon portions 4 and 5 are constituted by gap portions 9 and 10 provided in these tube walls. When the pressurized gas is sent from the pressurized gas passage holes 7 and 8, the balloon portions 4 and 5 are expanded outward (FIGS. 4A and 4B).
[0024]
FIG. 5 shows a mechanism when the balloon parts 4 and 5 are used for dysphagia treatment. As shown in the figure, the catheter 1 is inserted into the body of the patient 3 through the nasal cavity 17 and the balloons 4 and 5 provided at predetermined portions of the catheter 1 by the pressurized gas fed from the balloon driving device A are simultaneously or By inflating sequentially, pressure stimulation is positively applied to the afferent sensory receptors that induce swallowing reflexes distributed in the pharynx 6 (pressure stimulation is indicated by an arrow). In FIG. 5, 18 indicates the esophagus and 19 indicates the trachea.
[0025]
On the other hand, FIGS. 6A to 6C show other modes of use of the catheter for treating dysphagia. That is, this catheter 20 has three balloon parts 13, 14, and 15, and is configured to repeat the expansion and contraction sequentially by the pressurized gas sent by the balloon driving device A and the like as described above. Yes.
First, as shown in FIG. 6 (a), a pressurized gas is sent from the balloon driving device A to inflate the first balloon portion 13 to stimulate the esophagus wall near the entrance portion of the esophagus 18; Shrink. Next, as shown in FIG. 4B, the second balloon portion 14 provided below the first balloon portion 13 is inflated, and the wall of the esophagus 18 is stimulated in the same manner as described above, and then contracted. Let Next, as shown in FIG. 3 (c), after inflating the third balloon portion 15 provided below the second balloon portion 14 and stimulating the wall of the esophagus 18 in the same manner as described above, Shrink. These series of actions are similar to the peristaltic actions during normal eating, and pressure stimulations due to the inflation of the balloon portions 13, 14, and 15 are sequentially transmitted from the esophageal entrance to the lower esophageal wall.
[0026]
The positions of the balloon portions 13, 14, and 15 are preferably between the esophagus entrance and the stomach, and the length varies slightly depending on the patient 3, but is generally about 10 to 48 cm from the nostril. Although the capacity | capacitance in particular of each balloon part 13,14,15 is not restrict | limited, It is good that it is about 10-30 ml.
7 (a) to 7 (c) show still another embodiment of a catheter for treating dysphagia. That is, the catheter 20 is provided with at least one balloon portion 16 similar to that described above, and the balloon portion 16 is inflatable outward and inward of the catheter 20. It is configured to close the lumen 11 of the catheter 20 by expansion in the direction. Further, on the upstream side of the balloon portion 16, swallowing reflex that is expanded outward by the fluid 21 (rich liquid food or the like) that has flowed down the catheter 20 in a state of being blocked by the balloon portion 16 and exists in the pharynx in the body. A thin-walled portion 12 is provided for applying a pressure stimulus to the sensory receptor that induces the above.
[0027]
In order to treat dysphagia with this catheter 20, first, in the initial state shown in FIG. 7 (a), pressurized gas is passed from the balloon driving device A through the gas passage hole 7 to the gap portion 9 forming the balloon portion 16. The balloon portion 16 is inflated. As a result, the lumen 11 of the catheter 20 is closed as shown in FIG. Thereafter, as shown in FIG. 7 (c), the fluid 21 is injected into the lumen 11 and the thin portion 12 is expanded.
[0028]
On the other hand, in FIGS. 8 (a) and 8 (b), instead of expanding the balloon portion or the like, the lump 22 that can pass through the lumen of the catheter 1 is used to expand the catheter 1 so that It is configured to provide a pressure stimulus to a sensory receptor that induces an existing swallowing reflex and / or a sensory receptor that induces an esophageal peristaltic motion present in the esophagus.
The catheter 1 used has a flat cross-sectional shape that is inserted into the body through the nasal cavity 17 or the oral cavity, and has a stretchability that allows the tube wall to expand outward. A lump is pressed into the lumen 1a of the catheter 1 (FIG. 8 (a)). Then, the inside of the catheter 1 is moved while pressurizing the lump (FIG. 8 (b)). In this way, a pressure stimulus corresponding to a normal swallowing motion may be applied to a sensory receptor that induces a swallowing reflex present in the pharynx and / or a sensory receptor that induces peristaltic movement of the esophagus in the esophagus. It is possible to treat dysphagia.
[0029]
Examples of the antibacterial agent contained in the catheter of the present invention and the catheter constituting the dysphagia treatment device of the present invention include arbekacin sulfate and domifene bromide, and examples of the anti-inflammatory agent include azulene and the like.
Examples of the swallowing reflection accelerator contained in the catheter of the present invention and the catheter constituting the dysphagia treatment device of the present invention include capsaicin.
[0030]
As shown in FIG. 9 (c), the catheter of each of the above embodiments is made of a substance that is easily dissolved when wound around a core rod (mandrill) 23 with a flat cross-sectional shape and placed in the body. It is preferable to fix and use the surface of 1. By wrapping the catheter 1 around the core rod 23, the diameter of the catheter or dysphagia treatment tool becomes smaller, and it becomes easy to insert the catheter 1 into the patient's pharynx and esophagus through the nasal cavity or the like. In addition, since the substance used to fix the catheter 1 around the core rod 23 dissolves when placed in the body, the shape of the catheter 1 returns to the state before it is wound around the core rod 23. The core rod 23 can be pulled out from the catheter 1 after the shape of the catheter 1 has been restored.
[0031]
For example, as shown in FIGS. 9 (a) to 9 (c), the catheter 1 may be wound around the core rod 23 by inserting the core rod 23 into its lumen and then with the catheter 1 having a flat cross-sectional shape. The core rod 23 may be inserted into a gas passage hole (not shown) in the tube wall of the catheter 1.
As the material of the core rod 23, for example, a metal wire such as stainless steel can be used. Further, the core rod 23 may be wound around in contact with the outside of the catheter 1.
[0032]
Examples of the substance that fixes the surface of the catheter 1 wound around the core rod 23 include gelatin and the like.
FIG. 10 (a) is a perspective view showing an embodiment of a catheter fixture according to the present invention, and FIG. 10 (b) is a sectional view. As shown in the figure, the fixture 24 of the present invention includes, for example, a cylindrical fixture body 25 fixed to the outer surface of the catheter 1 and held in the nasal cavity 17, and a distal end portion of the fixture body 25. And a fixed plate 26 coupled to the. In the figure, reference numeral 27 denotes a cap.
[0033]
The main body 25 of the fixing device 24 is preferably a cylindrical member having an outer diameter equal to or slightly larger than the inner diameter of the nasal cavity 17 so that the body 25 can be fitted into the nasal cavity 17, for example.
The fixing plate 26 is preferably made of a flexible material that can be deformed in accordance with the surface shape of the nose 31 so as to be able to follow the surface of the nose 31. Examples of a material that can be used for the fixing plate 26 include silicone rubber.
[0034]
【The invention's effect】
The catheter of the present invention has flexibility such that the cross-sectional shape is deformed flat, or the cross-sectional shape is formed flat, so that the inner wall surfaces of the pharynx and the esophagus are not compressed. Therefore, esophageal ulcer and bleeding can be suppressed, and a decrease in peristaltic movement due to a decrease in the function of the esophageal sphincter can be prevented. Further, since the cross section is flat, it is possible to prevent the contents in the stomach and esophagus from flowing back through the catheter. Therefore, it can be suitably used as a nutrition catheter for nutritional supplementation and a catheter for treating dysphagia. The catheter of the present invention can also prevent backflow of contents in the stomach and esophagus due to a decrease in function of the esophagus and gastric sphincter.
[0035]
In addition, when using the catheter of the present invention for the treatment of dysphagia, since it can give a stimulus by pressure to the sensory receptors present in the pharynx and esophagus in the body, it is effective for the treatment of dysphagia, There is an effect that treatment of dysphagia can be easily performed.
Further, when the catheter fixture according to the present invention is used, there is an effect that the catheter can be hygienically fixed, and since the catheter is fixed at the nasal cavity portion, the pump is used other than when the catheter is used. The catheter can be removed, the patient is not always restrained by a pump or the like, and the patient's mental pain can be reduced.
[Brief description of the drawings]
FIG. 1 is a cutaway perspective view showing an embodiment of a catheter of the present invention.
FIG. 2 is an explanatory view showing a state where the catheter of the present invention is used for treatment of dysphagia.
FIGS. 3A and 3B are a transverse sectional view and a longitudinal sectional view showing a contracted state of the catheter of the present invention having a balloon portion, respectively.
FIGS. 4A and 4B are a transverse sectional view and a longitudinal sectional view showing an expanded state of the catheter of the present invention having a balloon portion, respectively.
FIG. 5 is an explanatory view showing a mechanism when a catheter of the present invention having two balloon portions is used for treatment of dysphagia.
FIG. 6 is an explanatory view showing another catheter for treating dysphagia according to the present invention and a method for using the catheter.
FIG. 7 is an explanatory view showing still another dysphagia treatment catheter in the present invention and a method for using the catheter.
FIG. 8 is an explanatory view showing a usage pattern for treatment of dysphagia using a catheter and a solid material in the present invention.
FIGS. 9A, 9B, and 9C are explanatory views showing an example of a process for winding the catheter of the present invention around a core rod.
FIGS. 10A and 10B are a perspective view and a cross-sectional view showing an embodiment of the fixture of the present invention.
[Explanation of symbols]
1 Catheter
4 Balloon part
5 Balloon part
6 pharynx
7 Gas passage hole
8 Gas passage hole
12 Thin section
13 Balloon part
14 Balloon part
15 Balloon part
16 Balloon part
17 Nasal cavity
20 Catheter
21 Fluid
22 Mass
23 core rod
24 Fixture
25 Fixture body
26 Fixed plate
31 nose

Claims (23)

Tube wall has an expandable elastic outward, the cross-sectional shape in the inner pressure of the inserted when pharynx and esophagus into the body through the nasal cavity or oral cavity is formed so as to flatly deformed or pre-cross- There catheter tubular formed in polarized flat,
A pump that press-fits the mass into the catheter and moves the catheter while pressurizing the mass;
By being moved the press-fitted into the catheter and the catheter, sensory receptors and / or the body to induce a swallowing reflex that is similar to the pipe wall is expanded in the outer direction is present in the pharynx in al bodies comprising of a lump which gives pressure stimulation to sensory receptors to induce peristaltic movement of the esophagus present in the esophagus portion, and,
It said catheter, characterized in that it is a nutritional catheter for supplying nutrition, aspiration under disorder treatment devices. When inserted into the body through the nasal cavity or oral cavity, a tubular catheter whose cross-sectional shape is deformed flat by the internal pressure of the pharynx and esophagus, or whose cross-sectional shape is formed flat in advance,
A sensory receiver provided on a part of the longitudinal direction of the catheter, capable of inflating in an outward direction perpendicular to the longitudinal direction, and inducing a swallowing reflex present in the pharynx in the body in the expanded state. A balloon part capable of applying pressure stimulation to the container;
A balloon driving device or a syringe for feeding gas into the balloon part;
A gas passage hole provided in the tube wall of the catheter, for sending gas from the balloon driving device or syringe to the balloon portion, and
A device for treating dysphagia, wherein the catheter is a nutrition catheter for replenishing nutrients. When inserted into the body through the nasal cavity or oral cavity, a tubular catheter whose cross-sectional shape is deformed flat by the internal pressure of the pharynx and esophagus, or whose cross-sectional shape is formed flat in advance,
  It is provided in a part of the longitudinal direction of the catheter and is inflatable in an outward direction and an inward direction orthogonal to the longitudinal direction, and induces a swallowing reflex existing in the pharynx in the body in the expanded state. A balloon part capable of applying pressure stimulation to the sensory receptor and capable of occluding the lumen of the catheter in the inflated state;
  A balloon driving device or a syringe for feeding gas into the balloon part;
  A gas passage hole that is provided in the tube wall of the catheter and sends gas from the balloon driving device or syringe to the balloon portion;
  Fluid flowing down into the catheter;
The fluid is flowed into the catheter with the balloon portion inflated in the inward direction by the gas, provided upstream of the balloon portion of the catheter in the flow-down direction of the fluid. And a thin portion capable of expanding the tube wall in the outward direction by the fluid,
A device for treating dysphagia, comprising: The dysphagia treatment device according to claim 3, wherein the catheter is a nutrition catheter for supplying nutrients. Two or more balloon parts are provided, and the gas passage holes are provided independently for each balloon part so that the balloon parts can be inflated sequentially or simultaneously. The dysphagia treatment tool according to any one of claims 2 and 3. Characterized in that said catheter is a catheter for esophageal placement, dysphagia therapy appliance according to any one of claims 1 to 5. Wherein the catheter is formed of a hydrophilic polymer or hydrogel, dysphagia therapy appliance according to any one of claims 1 to 6. At least the surface is characterized in that it is coated with a hydrophilic polymer or hydrogel, dysphagia treatment tool according to claim 1 of the catheter. The catheter is characterized by containing an antimicrobial or anti-inflammatory agents, dysphagia therapy appliance according to any one of claims 1 to 8. Wherein the catheter contains a swallowing reflex promoter, dysphagia therapy appliance according to any one of claims 1 to 9. Further comprising a mandrel, the catheter is held in a state where the cross section is wound on the mandrel in a flat state, and the catheter by stickies that dissolves in the body wound around the core rod wherein the are, dysphagia therapy appliance according to any one of claims 1 to 10. When inserted into the body through the nasal cavity or oral cavity, the tubular catheter is formed so that the cross-sectional shape is deformed flat by the internal pressure of the pharynx and esophagus, or the cross-sectional shape is formed flat in advance,
It is provided in a part of the longitudinal direction of the catheter, is inflatable in the outward and inward directions orthogonal to the longitudinal direction of the catheter, and closes the lumen of the catheter in the inflated state A balloon part capable of
A gas passage hole provided in the tube wall of the catheter, for sending gas into the balloon portion;
A thin portion provided on the upstream side in the gas inflow direction from the balloon portion of the catheter, and
When the fluid is flowed down and stored in the catheter in a state where the lumen of the catheter is blocked by the inward expansion of the balloon portion, the thin-walled portion expands in the outward direction. A catheter characterized by that. 13. Catheter according to claim 12, characterized in that it is a nutritional catheter for replenishing nutrients. The catheter according to claim 12 or 13, which is a catheter for treating dysphagia. The balloon portion, characterized in that provided in the active site to provide a pressure stimulus to the sensory receptors to induce the swallowing reflex present in the pharynx of the body, in any one of claims 12 to 14 The catheter described. The balloon portion, characterized in that provided in the active site to provide a pressure stimulus to the sensory receptors to induce peristaltic movement of the esophagus present in the esophagus of the body, any of claims 12 to 14 the catheter according to any. Provided the balloon portion is two or more, so that it is possible to sequentially or these balloon portion is inflated simultaneously, characterized in that the gas passage hole is provided independently for each balloon portion to catheter according to any one of claims 12 to 16. The catheter according to any one of claims 12 to 17 , wherein the catheter is an esophageal placement catheter. Characterized in that it is formed by a hydrophilic polymer or hydrogel catheter according to any one of claims 12 to 18. Characterized in that at least the surface is coated with a hydrophilic polymer or hydrogel catheter according to any one of claims 12 to 18. The catheter according to any one of claims 12 to 20 , comprising an antibacterial agent or an anti-inflammatory agent. The catheter according to any one of claims 12 to 21 , comprising a swallowing reflex promoter. State further comprises a mandrel, the catheter, the cross section has been wound on the mandrel in a flat state, and by sticking substance that dissolves in the body, wherein the catheter is wound on the core rod in characterized in that it is held, catheter according to any one of claims 12 to 22.

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