JP7081833B2 - Catheter devices, connector devices and catheter systems - Google Patents

Description

The present invention relates to a catheter device and a connector device, and more particularly to a catheter device having a light emitting portion at the tip of a tube to be inserted into the body, and a connector device and a catheter system used thereof.

A tube feeding catheter device is known as one of the catheter devices. The tube feeding catheter device is used to send nutritional supplements and medicines to the stomach of a patient who cannot eat or drink by himself / herself due to impaired consciousness, muscle weakness, or the like. In the method using this type of catheter device, a tube is inserted into the body through the mouth or nose to reach the stomach, and a nutritional supplement or the like is sent from outside the body to the stomach via the tube. There is a concern that the ability of the digestive system such as the stomach and intestines may decline only by intravenous drip, but there is also the merit that the decline of the ability of the digestive system can be suppressed by sending nutritional supplements directly to the stomach through a tube.

With such a catheter device method, care must be taken to prevent the tube from accidentally entering the airway. Therefore, a contrast line made of an X-ray opaque material such as Bi ₂ O ₃ or BaSO ₄ powder is placed in the tube of the catheter device and confirmed by X-ray. However, the handling management of X-rays is complicated, and the device configuration is also complicated.

There is also a method of confirming whether the tube has reached the stomach by checking whether gastric juice can be detected using a pH sensor. However, gastric acid may be detected before the tube reaches the stomach due to reflux of gastric acid, and accurate position detection cannot be performed.

Here, Patent Document 1 discloses a catheter including a plurality of visual elements. That is, a catheter system including a fixed visual element and a movable visual element that allows a user to capture a plurality of images of a lesion at various angles is disclosed. In this catheter system, an LED is provided at the tip of the tube to irradiate light to improve the quality of the image captured by the visual element.

Further, Patent Document 2 discloses an internal part light emitting device that is inserted into a capillary tube in a living body to emit light. This device has a main body portion made of a flexible and light-transmitting tubular body whose ends are sealed, at least one light emitting portion installed in the main body portion, and a light emitting portion for causing the light emitting portion to emit light. It has a light emitting means. In this internal part light emitting device, the main body is made to emit light and is inserted into the living body, and then the light is emitted so that doctors and veterinarians can accurately visually recognize the position and running state of the capillary tube in laparoscopic surgery and the like. It has become.

Patent Document 3 discloses an optical guide system for surely visually recognizing the tip position as an image when an oral or nasal feeding catheter, which is one of the tube feeding catheter devices, is inserted. In this system, emitted light is emitted from the tip of an optical fiber light guide inserted into the body. Therefore, even when the guide is placed inside the human body, the emitted light can be observed percutaneously regardless of the position and direction of the tip of the guide.

Japanese Patent Publication No. 2008-526360 JP-A-2007-222388 Japanese Patent Application Laid-Open No. 2015-066018

The tube feeding catheter device is disposable, but when the optical element and the conducting wire are integrally formed with the tube, discarding them increases the operating cost as compared with the tube-only configuration. On the other hand, a conductor with an optical element placed at the tip is placed inside the tube (inside the hollow), and after identifying a desired position in the body, the conductor and the optical element are pulled out, and then a nutrient is sent through the tube. The configuration is also conceivable. However, with this configuration, there is a problem that the procedure takes time, and it is necessary to be careful so that the position of the tip of the tube does not change when the lead wire is pulled out.

An object of the present invention is to provide a catheter device, a connector device and a catheter system capable of accurately detecting the tip position of a tube and suppressing an increase in operating cost.

In order to solve the above problems, the catheter device according to one aspect of the present invention includes a tube to be inserted into the body, a light emitting unit provided on the tip end side of the tube and emitting light for confirming the position of the tube, and a tube. A power supply line provided in the tube along the line to supply electric power to the light emitting portion, a power supply line provided in the tube provided on the rear end side of the tube, and an external device for supplying electric power to the power supply line from the outside. It is provided with a connector portion for connecting. The connector portion has a placement hole into which the tube is inserted, a tube holding portion that holds the tip portion on the rear end side of the tube, a port portion that has a port hole that communicates with an opening provided in the tube, and a tube portion. It has a conduction connector portion that holds the rear end portion on the rear end side and conducts with the power supply line on the rear end side of the tube to connect the external connector detachably.

With such a configuration, it is possible to connect the port hole into which a nutrient or a drug can be inserted in the connector portion to the inside of the hollow hole of the tube, and the outside of the external device for supplying electric power to the light emitting portion. Can be connected to a connector. Further, since the external connector is detachably connected to the conductive connector portion, the tube side can be replaced from the connector portion by removing the external connector from the conductive connector portion.

In the catheter device, the tube holding portion, the port portion, and the conductive connector portion are arranged in this order in the extending direction of the tube, and the tube may be watertightly fixed between each of the tube holding portion and the conductive connector portion. .. This makes it possible to form a watertight structure between the tube holding portion and the port portion and between the conductive connector portion and the port portion.

In the above-mentioned catheter device, the conduction connector portion has a substrate having an electrode pattern and an internal connector for conducting with the electrode pattern of the substrate and connecting an external connector detachably, and the power supply line is behind the tube. It may be connected to the electrode pattern at the extending portion extending from the end side. As a result, the extension portion of the power supply line extending from the rear end side of the tube can be electrically connected to the internal connector.

In the catheter device, the electrode pattern and the extending portion may be sealed by a sealing portion. As a result, the connection portion between the pad and the extension portion can be formed into a sealing structure.

In the catheter device, a port space that communicates with the arrangement hole and also communicates with the port hole may be provided on the outside of the tube. As a result, even if the position of the opening provided in the tube varies, it is possible to reliably communicate with the port hole.

In the catheter device, the port space may be watertightly sealed between each of the tube holding portion and the conduction connector portion. As a result, it is possible to prevent water from entering the port space from other than the port hole in the connector portion.

In the catheter device, the conduction connector portion is provided separately from the port portion, and the continuity connector portion is fitted and connected to the port space in the port portion and the fitting hole communicating with the extending direction of the tube. May be good. As a result, the port portion and the conductive connector can be separated from each other, and can be assembled by fitting after tube connection and electrical wiring.

In the above catheter device, a cap provided at the end of the conductive connector portion is further provided, the conductive connector portion and the cap are fixed in a watertight manner, and the external connector is attached to the conductive connector portion via a hole provided in the cap. It may be connected. As a result, a watertight structure can be formed between the conductive connector portion and the outside.

One aspect of the present invention is a connector device used for a catheter device having a tube inserted into the body, which is provided on the rear end side of the tube to connect the tube to an external device. This connector device has an insertion hole into which the tube is inserted, a tube holding portion that holds the rear end side of the tube, a port space that communicates with the insertion hole, and a port space in which an opening provided in the tube is located, and a port space. It is provided with a port portion having a port hole for communicating with the power supply line, and a conductive connector portion for connecting the external connector to the power supply line in a detachable manner.

With such a configuration, it is possible to maintain the connection of the tube inserted into the body and to connect to an electrical external connector. Further, since the external connector is detachably connected to the conductive connector portion, the tube side can be easily replaced by removing the external connector from the conductive connector portion.

In addition to the catheter device, the external device may be provided with a control unit for controlling the temperature of the light emitting unit. In this case, unnecessary heat generation due to infrared irradiation can be suppressed.

INDUSTRIAL APPLICABILITY According to the present invention, it becomes possible to provide a catheter device, a connector device and a catheter system capable of accurately detecting the tip position of a tube and suppressing an increase in operating cost.

It is a schematic diagram which illustrates the catheter apparatus which concerns on this embodiment. It is a perspective view which shows the structural example of the light emitting part. (A) and (b) are schematic views showing a configuration example of a tube. (A) and (b) are schematic views illustrating a connector portion. It is sectional drawing which illustrates the connector part. (A) and (b) are schematic views of the connector portion. It is a schematic diagram which illustrates the manufacturing method of the connector part. (A) and (b) are schematic views illustrating a method of manufacturing a connector portion. (A) and (b) are schematic views illustrating a method of manufacturing a connector portion. It is a schematic diagram which illustrates the manufacturing method of the connector part. (A) and (b) are schematic views illustrating a method of manufacturing a connector portion.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same members are designated by the same reference numerals, and the description of the members once described will be omitted as appropriate.
In the present embodiment, the side provided with the light emitting portion 20 is referred to as a front end, and the side provided with the connector portion 15 is referred to as a rear end.

(Construction of catheter device)
FIG. 1 is a schematic diagram illustrating the catheter device according to the present embodiment.
In the catheter device 1 according to the present embodiment, the tube 10 inserted into the human body 100, the light emitting portion 20 provided on the tip end side of the tube 10, and the connector portion (connector device) 15 holding the rear end side of the tube 10 are held. And a power supply line 25 formed on the tube 10 and arranged between the front end side and the rear end side of the tube 10. The catheter system 1000 shown in FIG. 1 further includes a light receiving unit 30, a control unit 50, and the like. As an example, the catheter device 1 inserts the tube 10 into the body through the mouth or nose, and makes the tip of the tube 10 reach the stomach via the esophagus. Then, nutrients and medicines are sent from outside the body through the tube 10 to the stomach. As a result, nutritional supplements and medicines can be sent directly to the patient's stomach.

A connector portion 15 is connected to the rear end side of the tube 10, and a cable C10 is connected to the connector portion 15. The cable C10 is connected to the control unit 50 (external device). The tube 10 is provided with a power supply line 25, one end of the power supply line 25 is connected to the light emitting portion 20, and the other end of the power supply line 25 is connected to the connector portion 15. One of the roles of the connector portion 15 is to make the power supply line 25 of the tube 10 and the cable C10 conductive.

Further, another role of the connector portion 15 is to enable nutrients, medicines and the like to be put into the tube 10 through the port hole 151 communicating with the opening 10h on the other end side of the tube 10. The details of the connector portion 15 will be described later.

The light emitting unit 20 is provided with an infrared light emitting element 21. The wavelength of the infrared light emitted from the infrared light emitting element 21 is preferably in the near infrared region having high transparency to the human body, for example, about 650 nm to 1000 nm. As a result, when the tube 10 is inserted into the body, the infrared light emitted from the light emitting portion 20 provided on the tip end side of the tube 10 can be received outside the body. A power supply line 25 is connected to the infrared light emitting element 21. The power supply line 25 is embedded in the wall (inside the wall thickness) of the tube 10, for example, and extends along the tube 10 from the front end to the rear end of the tube 10.

The light receiving unit 30 is a portion that receives infrared light emitted from the light emitting unit 20 and transmitted through the human body. The light receiving unit 30 is arranged at a position close to or in contact with the human body 100 outside the body. For example, when the tip of the tube 10 is desired to reach the stomach, the light receiving portion 30 is arranged near the position corresponding to the stomach outside the body or in contact with the position corresponding to the stomach. The light receiving unit 30 is connected to the control unit 50 by the cable C30. The electric signal based on the infrared light received by the light receiving unit 30 is sent to the control unit 50 via the cable C30.

The control unit 50 is a unit that controls each unit such as the light emitting unit 20 and the light receiving unit 30. The control unit 50 includes an operation button 53 and a display 55. The control unit 50 controls energization to the light emitting unit 20 via the cable C10. That is, the electric power for operating the light emitting unit 20 is supplied from the control unit 50 to the infrared light emitting element 21 of the light emitting unit 20 via the cable C10 and the power supply line 25 of the tube 10.

The display 55 displays the detection result by the light receiving unit 30. For example, when the signal based on the intensity of the infrared light detected by the light receiving unit 30 exceeds a predetermined value, a display indicating "detection" is performed. In addition, numerical values, graphs, patterns, etc. according to the signal strength may be displayed. The control unit 50 may notify the "detection" by sound. The operation button 53 is used when switching the display of the display 55, changing the setting, and the like.

To use the catheter device 1, first, the cable C30 to which the cable C10 and the light receiving unit 30 are connected is connected to the control unit 50 via a connector jack or the like. Next, the cable C10 extending from the control unit 50 is connected to the connector unit 15 of the catheter device 1.

Next, the operation button 53 is operated to supply electric power from the control unit 50 to the light emitting unit 20 via the cable C10 and the power supply line 25 of the tube 10, and emit infrared light. In this state, the tube 10 is inserted into the body through the mouth or nose. On the other hand, the light receiving portion 30 is arranged outside the body close to the position where the tip of the tube 10 is desired to reach. For example, when the tube 10 is to be inserted to the stomach, the light receiving portion 30 is arranged around the stomach outside the body (around the upper abdomen).

In this state, the tube 10 is inserted into the body. Then, when the tip of the tube 10 reaches the stomach, the infrared light emitted from the light emitting unit 20 passes through the human body and reaches the light receiving unit 30. When the light receiving unit 30 receives infrared light, it sends a signal corresponding to the amount of light to the control unit 50 via the cable C30. When this signal exceeds a preset value, it is displayed that the display 55 of the control unit 50 has been reached.

On the other hand, when the tip of the tube 10 does not reach the stomach, the amount of infrared light received by the light receiving unit 30 is small, so that the display 55 does not indicate that the light has reached the stomach. Thereby, the user can recognize whether or not the tip of the tube 10 has reached the stomach by the display of the display 55.
In this description, an example is described in which the tube 10 is inserted into the body after the light emitting unit 20 emits infrared light, but after inserting the tube 10 into the body to some extent, the operation button 53 is operated to emit infrared light. You may try to do it.

(Structure example of light emitting part)
FIG. 2 is a perspective view showing a configuration example of the light emitting unit.
The light emitting unit 20 has a substrate 200 which is a base material extending in the extending direction D0 of the tube 10 and an infrared light emitting element 21 mounted on the substrate 200. Here, the extending direction D0 of the tube 10 means the extending direction of the tube 10 when the tube 10 is straightened.

The substrate 200 is, for example, a flexible substrate on which an electrode pattern 200p is formed. The substrate 200 is arranged on the tip end side of the tube 10, and the power supply line 25 extending from the tip end of the tube 10 and the electrode pattern 200p of the substrate 200 are connected by solder or the like.

The infrared light emitting element 21 is mounted on the mounting surface 210a of the substrate 200. The infrared light emitting element 21 and the electrode pattern 200p are conducting on the substrate 200, whereby electric power is supplied from the power supply line 25 to the infrared light emitting element 21 via the electrode pattern 200p.

The configuration of the light emitting unit 20 described above is an example, and other configurations may be used. For example, a visible light emitting element connected in series with the infrared light emitting element 21 may be mounted on the substrate 200 so that the operating state of the infrared light emitting element 21 can be visually confirmed by the lighting state of the visible light emitting element.

3 (a) and 3 (b) are schematic views showing a configuration example of a tube.
FIG. 3A shows a partial perspective view of the tube 10, and FIG. 3B shows a cross-sectional view of the tube 10.
The tube 10 has a hollow structure having an outer diameter of about 2 mm to 5 mm and an inner diameter of about 1 mm to 3 mm. The material of the tube 10 is, for example, vinyl chloride or a silicone resin. A wiring 105 that serves as a power supply line 25 is embedded in the wall 11 of the tube 10. In the example shown in FIG. 3, two wires 105 are embedded in the wall 11 of the tube 10 so as to be parallel to each other. The wiring 105 is a conductor, and the wall 11 of the tube 10 serves as a covering. Therefore, the fluid such as nutrients passing through the tube 10 does not come into contact with the wiring 105.

There may be three or more wires 105 embedded in the wall 11 of the tube 10. Since the wiring 105 is embedded in the extending direction D0 of the tube 10, tension (elasticity) can be given to the tube 10 as compared with the case where the wiring 105 is not embedded. This makes it possible to improve the conductivity of the wiring 105 and the workability when inserting the tube 10 into the human body 100.
Further, in FIG. 3, the wirings 105 are arranged side by side with a predetermined interval (in the figure, an interval of about 10 degrees in the circumferential direction), but are separated from each other at opposite positions, that is, about 180 degrees in the circumferential direction. It is also possible to place it in a position. In that case, the maximum interval can be taken and insulation can be reliably performed. The separation angle in the circumferential direction is not limited to this, and may be any other angle. Further, the wiring 105 may not only be embedded in the tube 10 but also may be held on the outer surface or the inner surface of the tube 10 with an adhesive. Further, after holding with an adhesive, the surface may be laminated with a resin or the like.

(Configure of connector part)
4 (a) and 4 (b) are schematic views illustrating a connector portion.
FIG. 4A shows a perspective view of the connector portion 15, and FIG. 4B shows a side view of the connector portion 15.
FIG. 5 is a cross-sectional view illustrating the connector portion.
6 (a) and 6 (b) are exploded schematic views of the connector portion.
FIG. 6A shows a state in which the port portion 153 and the conductive connector portion 155 are disassembled, and FIG. 6B shows a state in which the conductive connector portion 155 and the internal connector 1555 are disassembled.

The connector portion 15 has a tube holding portion 150, a port portion 153, and a conductive connector portion 155. The rear end side of the tube 10 is connected to one side of the connector portion 15, and the external connector 70 is connected to the other side. That is, the connector portion 15 is a member for connecting both the tube 10 inserted into the human body and the external connector 70 for electrical connection, and has a port hole 151 capable of supplying nutrients and the like to the tube. is doing.

The tube holding portion 150 has an insertion hole (arrangement hole) 150h in which the tube 10 is arranged. The insertion hole 150h is provided so as to penetrate from one end of the tube holding portion 150 to the center. The tip of the tube 10 inserted into the insertion hole 150h on the rear end side is watertightly fixed to the inner wall of the tube holding portion 150 constituting the insertion hole 150h. For example, the space between the tube 10 and the inner wall of the tube holding portion 150 is fixed by an ultraviolet curable adhesive. Although the tube holding portion 150 is an integral part in the present embodiment, it is divided into two parts so as to pass through the central axis of the insertion hole 150h, and the tube 10 is held between them and then integrated by using an adhesive or the like. May be good.

The port portion 153 is juxtaposed with the tube holding portion 150 in the extending direction D0 of the tube 10. The port portion 153 has a port space 152 that communicates with the insertion hole 150h of the tube holding portion 150, and a port hole 151 that communicates with the port space 152.

The inner diameter of the port space 152 is larger than the outer diameter of the tube 10. As a result, a gap is provided between the outside of the tube 10 passed from the insertion hole 150h to the port space 152 and the inner wall of the port space 152. With the tube 10 reaching the port space 152, the opening 10h provided in the tube 10 is located in the port space 152.

The tip of the port hole 151 reaches the port space 152, and the rear end of the port hole 151 is open. A cap as shown in FIG. 4 is provided in the opening portion via a hinge. The port hole 151 is shaped so that a syringe can be fitted, for example.

When feeding a fluid such as a nutrient, a syringe containing the fluid is fitted into the port hole 151, and the fluid is pushed out from the syringe. The fluid collects in the port space 152 through the port hole 151 and is sent into the tube 10 through the opening 10h of the tube 10 located in the port space 152. By providing the port space 152, the margin for alignment between the port hole 151 and the opening 10h of the tube 10 is increased. That is, if the opening 10h of the tube 10 is located in the port space 152, the fluid can be sent from the opening 10h into the tube 10 regardless of the positional relationship between the opening 10h and the port hole 151 in the front-rear direction. .. At the same time, since the port space 152 is formed on the entire outer circumference of the tube 10, it can be incorporated without having to adjust the angle in the circumferential direction of the tube 10, and in this sense, the margin of alignment is increased. Further, it is necessary to control the coating position and the coating amount so that the ultraviolet curable adhesive provided in the tube holding portion 150 does not reach the opening 10h, but the port space 152 allows the tube holding portion 150 and the opening 10h to be controlled. Since a large space is formed between the two to make it difficult for the ultraviolet curable adhesive to reach the opening 10h, there is a margin for controlling the coating position and the coating amount.

The port space 152 does not necessarily have to be provided, but in that case, the port hole 151 is formed sufficiently larger than the opening 10h, or the port hole 151 is formed sufficiently smaller than the opening 10h, and the tube 10 is formed. It is necessary to make sure that there is no problem even if there is a misalignment at the time of assembling in the D0 direction.

The conductive connector portion 155 is juxtaposed with the port portion 153 in the extending direction D0 of the tube 10. The conductive connector portion 155 is configured to be conductive with the power supply line 25 extending from the tube 10 on one end side, and to be detachably connected to the external connector 70 on the other end side.

Specifically, a substrate 1550 is provided inside the conduction connector portion 155, and the power supply line 25 is connected to the electrode pattern 1551 provided on the substrate 1550 by solder or the like. Further, an internal connector 1555 is mounted on the substrate 1550, and the terminal 1555a (see FIG. 7) outside the internal connector 1555 is conductive to the electrode pattern 1551 by soldering or the like. When there are two power supply lines 25, two electrode patterns 1551 are also provided, and each power supply line 25 and the internal terminal of the two-pole internal connector 1555 are provided via the electrode pattern 1551 and the outer terminal 1555a of the internal connector 1555. (Not shown) is connected by conduction.

The internal connector 1555 is a female connector such as a jack connector into which a plug connector is inserted and which comes into contact with the internal terminal. It is desirable that the internal connector 1555 has a waterproof structure so that even if water or the like enters through the insertion hole into which the plug connector is inserted, it does not leak from other than the insertion hole. As a result, even if water enters through the opening of the internal connector 1555, it is possible to prevent the water from entering the outside of the internal connector 1555 (inside the conductive connector portion 155).

Further, a cap 157 is attached to the end of the conduction connector portion 155. The conductive connector portion 155 and the cap 157 are fixed in a watertight manner. For example, an O-ring (not shown) is provided between the end of the conductive connector portion 155 and the cap 157 so that moisture does not enter between the conductive connector portion 155 and the cap 157. The conductive connector portion 155 and the cap 157 may be joined by an adhesive, ultrasonic welding, laser welding, or the like.

In the present embodiment, the tube holding portion 150, the port portion 153, and the conductive connector portion 155 are arranged in this order in the extending direction D0 of the tube 10. The tube 10 inserted from the insertion hole 150h of the tube holding portion 150 penetrates the port space 152 of the port portion 153 and reaches the conduction connector portion 155. Then, the rear end portion of the tube 10 that has reached the conductive connector portion 155 on the rear end side is watertightly fixed to and from the conductive connector portion 155 by an ultraviolet curable adhesive or the like.

In the conductive connector portion 155, the extending portion of the power supply line 25 extending from the rear end of the tube 10 is connected to the electrode pattern 1551 of the substrate 1550. The extension portion of the power supply line 25 and the electrode pattern 1551 are sealed by the sealing material 160.

The tube holding portion 150 and the port portion 153 are integrally formed. For the integrally molded product of the tube holding portion 150 and the port portion 153, a general-purpose plastic material that is easily deformable and has little effect on the human body, such as polycarbonate or polyurethane, is used. The conductive connector portion 155 is provided separately from the port portion 153. The port portion 153 is provided with a fitting hole 153h that communicates with the port space 152 in the extension direction D0 of the tube. On the other hand, the conductive connector portion 155 is provided with a protruding portion 155t. The fitting hole 153h and the protrusion 155t have a tapered shape that matches each other. By fitting the protruding portion 155t into the fitting hole 153h, the separate port portion 153 and the conductive connector portion 155 are combined.

Then, in the fitted state, the port portion 153 and the conduction connector portion 155 are fixed in a watertight manner. For example, the inner wall constituting the fitting hole 153h of the port portion 153 and the outer wall constituting the protruding portion 155t of the conductive connector portion 155 are fixed with an ultraviolet curable adhesive.

With such a configuration, the port space 152 is watertightly sealed between each of the tube holding portion 150 and the conductive connector portion 155. Since the port space 152 is sealed, when a fluid such as a nutrient is sent from the port hole 151 to the port space 152, the fluid does not leak from the port space 152 to the outside.

Adhesive portion for obtaining the airtightness of the port space 152 (between the tube 10 and the tube holding portion 150, between the tube 10 and the conductive connector portion 155, and the fitting of the protruding portion 155t of the conductive connector portion 155 and the port portion 153. The holes (between the holes 153h) are preferably fixed with an adhesive strength so as not to cause a pressure loss when feeding the fluid. As a result, when the fluid is fed by the syringe, the fluid can be efficiently fed into the tube 10 by the pressing force of the syringe.

(Manufacturing method of connector part)
7 to 11 (b) are schematic views illustrating a method of manufacturing a connector portion.
First, as shown in FIG. 7, the internal connector 1555 is mounted on the substrate 1550. The inside of the case of the internal connector 1555 has a waterproof structure, and the internal connector 1555 is mounted on the board 1550 by connecting the terminal 1555a on the outside of the case and the electrode pattern 1551 of the board 1550 by soldering or the like.

Although the surface of the substrate 1550 is covered with the insulating coat 1550c, the electrode patterns 1551a and 1551b in FIG. 7 are formed in the same layer. Further, the central terminal of the terminals 1555a on the outer side of the case is a terminal for mounting on a board, and is intended to increase the mounting strength, and the power supply line 25 is not connected. When three wirings 105 are provided to secure three energization paths, an external connector 70 such as a plug connector is set to three poles and three electrode patterns 1551 are formed so as to correspond to each energization path. The central terminal of the outer terminals 1555a is also used as an energizing path.

Next, as shown in FIG. 8A, the internal connector 1555 mounted on the substrate 1550 is inserted into the center hole 155h of the conductive connector portion 155. As a result, as shown in FIG. 8B, the internal connector 1555 is assembled to the conductive connector portion 155.

Next, as shown in FIG. 9A, the cap 157 is attached to the internal connector 1555 side of the conductive connector portion 155. An O-ring 156 is provided on the end face of the internal connector 1555. By attaching the cap 157, the O-ring 156 is sandwiched between the cap 157 and the end face of the internal connector 1555. As shown in FIG. 9B, the cap 157 is watertightly fixed to the conductive connector portion 155 by an adhesive, ultrasonic welding, laser welding, or the like.

Next, as shown in FIG. 10, the tube 10 is inserted from the tip end side of the conductive connector portion 155. The conduction connector portion 155 is provided with an opening 155w so that the internal substrate 1550 can be seen from the opening 155w. When the tube 10 is inserted, the power supply line 25 extending from the end of the tube 10 becomes visible from the opening 155w. Then, the power supply line 25 and the electrode pattern 1551 of the substrate 1550 are connected from the opening 155w by soldering or the like.

After connecting the power supply line 25 and the electrode pattern 1551, the sealing material 160 is filled from the opening 155w. As a result, the power supply line 25 and the electrode pattern 1551 are sealed by the sealing material 160.

Next, as shown in FIGS. 11A and 11B, the conduction connector portion 155 and the port portion 153 are fitted. That is, the protruding portion 155t of the conductive connector portion 155 to which the tube 10 is attached is fitted into the fitting hole 153h of the port portion 153.

Here, the tube 10 may be passed through the insertion hole 150h of the tube holding portion 150 to the port portion 153 before being connected to the conductive connector portion 155, or after connecting the conductive connector portion 155 and the tube 10 to the tube. The tip of the 10 may be passed from the port portion 153 to the insertion hole 150h of the tube holding portion 150.

After fitting the conductive connector portion 155 and the port portion 153, the space between the two is fixed with an adhesive or the like. Further, the inlet of the insertion hole 150h of the tube holding portion 150 is sealed with an adhesive or the like. As a result, the connector portion 15 is completed.

According to the connector unit 15, by connecting an external connector 70 such as a plug connector to the internal connector 1555, the external device and the light emitting unit 20 are electrically connected to each other via the power supply line 25 provided along the tube 10. You can connect. When the tube 10 is inserted into the human body 100, the infrared light emitted from the infrared light emitting element 21 of the light emitting unit 20 is received by the light receiving unit 30 outside the body, so that the work is performed while accurately grasping the tip position of the tube 10. be able to.

After inserting the tube 10 into the human body 100, a fluid such as a nutrient is injected through the port hole 151. The fluid is sent from the port hole 151 of the connector portion 15 to the port space 152, and is sent into the tube 10 through the opening 10h of the tube 10. Then, it is sent into the body through a hole provided on the tip end side of the tube 10. At this time, no fluid leaks from the port space 152. In addition, the fluid does not come into contact with the power supply line 25.

After the procedure of injecting the fluid into the human body 100 is completed and the tube 10 is pulled out from the human body 100, the tube 10 is removed from the external connector 70 and the internal connector 1555. As a result, the tube 10 side from the connector portion 15 and the control unit 50 side from the external connector 70 are separated. When a new fluid is injected, a new tube 10 and a connector portion 15 are prepared, and an external connector 70 is connected to the connector portion 15. That is, the tube 10 inserted into the human body 100 is new, and the same tube can be reused by the control unit 50 from the external connector 70.

As described above, according to the present embodiment, the catheter device 1, the connector portion (connector device) 15, and the catheter system 1000 that can accurately detect the tip position of the tube 10 and suppress an increase in operating cost are provided. It will be possible to provide.

Although the present embodiment has been described above, the present invention is not limited to these examples. For example, in the above embodiment, the example in which the tube 10 is inserted into the body through the mouth or nose is shown, but it can be applied even when the tube 10 is inserted through a hole made in the body by anus or a procedure. Further, in the above embodiment, an example in which a fluid such as a nutrient is sent from the port portion 153 to the human body 100 via the tube 10 is shown, but the sucked product is sucked by the tube 10 inserted into the human body 100. It may be taken out from the port part 153 to the outside.

Further, although the configuration in which the light receiving unit 30 is connected to the control unit 50 by the cable C30 is exemplified, the light receiving unit 30 may be connected to a mobile terminal such as a tablet, or the camera provided in the mobile terminal may be used as the light receiving unit 30. It may be configured to be. Further, the internal connector 1555 and the external connector 70 may be either a female type or a male type, or may be a surface contact type or a magnetic force connection type.

Further, in the present embodiment, the light emitted from the light emitting unit 20 is regarded as near-infrared light and detected by the light receiving unit 30, but in the case of the pediatric catheter system 1000 having a thin body wall, the light is replaced with the near-infrared light. Visible light may be used for direct visual inspection without providing the light receiving unit 30.

Further, in the present embodiment, when the irradiation time of the light emitting unit 20 exceeds a predetermined time, or when a temperature sensor is provided in the vicinity of the heat generating unit and the predetermined temperature threshold is exceeded, the light emitting unit 20 emits light. The temperature of the light source may be controlled by the control unit 50 so that the temperature becomes low, such as stopping the temperature, intermittently emitting light, or providing two infrared light emitting elements 21 and turning them on alternately. By doing so, the thermal effect of far-infrared irradiation on the body can be further reduced, and the concern that burns or the like may occur can be further reduced.

In addition, those skilled in the art appropriately adding, deleting, and changing the design of each of the above-described embodiments, and those in which the features of each embodiment are appropriately combined are also provided with the gist of the present invention. As long as it is, it is included in the scope of the present invention.

1 ... Catheter device 10 ... Tube 10h ... Opening 11 ... Wall 15 ... Connector part 20 ... Light emitting part 21 ... Infrared light emitting element 25 ... Power supply line 30 ... Light receiving part 50 ... Control unit (external device)
53 ... Operation button 55 ... Display 70 ... External connector 100 ... Human body 105 ... Wiring 150 ... Tube holding portion 150h ... Insertion hole (arrangement hole)
151 ... Port hole 152 ... Port space 153 ... Port part 153h ... Fitting hole 155 ... Conduction connector part 155h ... Central hole 155t ... Protruding part 155w ... Opening 156 ... O ring 157 ... Cap 160 ... Sealing material 200 ... Board 200p ... Electrode pattern 210a ... Mounting surface 1000 ... Cauter system 1550 ... Substrate 1550c ... Insulation coat 1551 ... Electrode pattern 1551a ... Electrode pattern 1551b ... Electrode pattern 1555 ... Internal connector 1555a ... Terminal C10 ... Cable C30 ... Cable D0 ... Extension direction

Claims (10)

A tube inserted into the body and
A light emitting unit provided on the tip end side of the tube and emitting light for confirming the position of the tube,
A power supply line provided in the tube along the tube and supplying electric power to the light emitting portion,
A connector portion provided on the rear end side of the tube for connecting a power supply line provided on the tube and an external device for supplying electric power to the power supply line from the outside.
Equipped with
The connector part is
A tube holding portion having a placement hole in which the tube is arranged and holding the tip end portion of the tube on the rear end side, and a tube holding portion.
A port portion having a port hole communicating with an opening provided in the tube,
A catheter device having a conductive connector portion that holds the rear end portion of the tube on the rear end side and is conductive with a power supply line on the rear end side of the tube and for detachably connecting an external connector. The tube holding portion, the port portion, and the conductive connector portion are arranged in this order in the extending direction of the tube.
The catheter device according to claim 1, wherein the tube is watertightly fixed between each of the tube holding portion and the conductive connector portion. The conductive connector portion is
A substrate with an electrode pattern and
It has an internal connector that conducts with the electrode pattern of the substrate and is for detachably connecting the external connector.
The catheter device according to claim 1 or 2, wherein the power supply line is connected to the electrode pattern at an extension portion extending from the rear end side of the tube. The catheter device according to claim 3, wherein the electrode pattern and the extending portion are sealed by a sealing portion. The catheter device according to any one of claims 1 to 3, wherein a port space communicating with the arrangement hole and communicating with the port hole is provided on the outside of the tube. The catheter device according to claim 5, wherein the port space is hermetically sealed between each of the tube holding portion and the conductive connector portion. The conductive connector portion is provided separately from the port portion.
The catheter device according to claim 5 or 6, wherein the conduction connector portion is fitted and connected to the port space in the port portion and a fitting hole communicating with the tube in the extending direction. Further provided with a cap provided at the end of the conductive connector portion,
The conductive connector portion and the cap are fixed in a watertight manner.
The catheter device according to any one of claims 1 to 7, wherein the external connector is connected to the conduction connector portion through a hole provided in the cap. A connector device used for a catheter device having a tube to be inserted into the body, which is provided on the rear end side of the tube and for connecting the tube to an external device.
A tube holding portion having an insertion hole into which the tube is inserted and holding the rear end side of the tube,
A port portion that has a port space that communicates with the insertion hole and where an opening provided in the tube is located, and a port portion that communicates with the port space.
A conductive connector portion that conducts with the power supply line provided on the tube and allows the external connector to be detachably connected.
With a connector device. A catheter system according to claim 1, wherein the external device is provided with a control unit for controlling the temperature of the light emitting unit in addition to the catheter device according to claim 1.

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