JP2022015559A - Aspiration object guide tube, and aspiration object sucking system - Google Patents

Abstract

To achieve more easily aspiration of a minimally invasive aspiration object.SOLUTION: An aspiration object guide tube 100 connected to a suction tube of an aspirator includes a guide tube body 110 provided with a connection 112 connected to the suction tube, an inner lid 120 provided on one end of the guide tube body, having the outer peripheral surface on the tip side constituted of a taper surface 120c expanding from the tip to the base end, and having an opening 120a on the tip side, and a tip cap 130 provided openably/closably to the opening of the inner lid through a connection cord 114 connected to one end of the inner lid.SELECTED DRAWING: Figure 2

Description

The present invention relates to a suction object guide tube and a suction object suction system.

It may be difficult to expel or swallow inhaled substances in the human body such as sputum, saliva, and nasal discharge accumulated in the pharynx due to aging or illness due to coughing or swallowing. If such an aspirated object enters the trachea, it may cause dyspnea, choking, pneumonia, aerobic lung, etc. Therefore, the aspirated object is aspirated using a suction catheter or the like connected to the suction tube of the suction device. And need to be removed.

When aspirating objects such as sputum to be aspirated with a suction catheter, the suction effect cannot be sufficiently obtained unless the end of the suction catheter reaches the aspirated object. Further, in this case, the airway may be damaged by inserting the suction catheter into the lower respiratory tract. As a related technique for efficiently performing sputum aspiration, for example, Patent Document 1 describes Mechanical Insufflation --Exsufflation (hereinafter referred to as MI-E) in which a patient's lungs are made positive pressure by a machine and then negative pressure is applied. A collection device is disclosed in which sputum in the lungs is guided to the upper airway and then sucked with a suction catheter to collect the sputum.

Japanese Patent Application Laid-Open No. 2013-524202 (paragraph [0017] of the specification)

However, sputum aspiration by mechanical cough assistance (MI-E) induces sputum in the upper respiratory tract, which enables minimally invasive sputum aspiration, but requires skill in mechanical operation and setting. Therefore, it is desired that the suctioned substance such as sputum is more easily guided to the upper respiratory tract side.

The present invention has been made in view of the above problems, and an object of the present invention is to enable a minimally invasive suction of a suctioned object by inducing the suctioned object toward the upper respiratory tract side more easily.

According to one aspect of the present invention, in the suction tube to be connected to the suction tube of the suction device, a guide tube main body provided with a connection portion connected to the suction tube and one end of the guide tube main body are provided. It is provided with an inner lid having a tapered surface whose outer peripheral surface on the distal end side expands in diameter from the distal end to the proximal end and an opening on the distal end side.

According to one aspect of the present invention, a suction object guide tube is attached to the tip of the suction tube of the suction device, and then the suction object guide tube is brought into close contact with the ventilation member for mounting on a human body and communicated with the suction object. Is guided to the upper airway side, so that it becomes possible to efficiently aspirate a minimally invasive object to be sucked.

Another aspect of the present invention is a suction device provided with a suction tube and the above-mentioned suction object guide tube connected to one end of the suction tube in a suction device suction system for sucking a suction object from a living body. , Equipped with.

According to another aspect of the present invention, the suction object guide tube is connected to the tip of the suction tube of the suction device, and then the suction object guide tube is brought into close contact with the ventilation member for mounting on a human body to communicate with the suction device. Since the suctioned object is guided to the upper airway side, it becomes possible to easily suck the suctioned object with minimal invasiveness.

According to the present invention, it is possible to realize a minimally invasive suction of the suctioned object by guiding the suctioned object toward the upper respiratory tract side more easily.

It is a perspective view which shows the use state of the suctioned material guide tube which concerns on one Embodiment of this invention. FIG. 1 is a cross-sectional view taken along the line AA of FIG. It is a perspective view which shows the unused state of the suctioned material guide tube which concerns on one Embodiment of this invention. It is a perspective view which shows the unfolded state of the suctioned object guide tube which concerns on one Embodiment of this invention. It is a front view which shows the unfolded state of the suctioned object guide tube which concerns on one Embodiment of this invention. It is a top view which shows the expanded state of the suctioned object guide tube which concerns on one Embodiment of this invention. It is a bottom view which shows the expanded state of the suction | subject guide tube which concerns on one Embodiment of this invention. It is a schematic block diagram of the suction object suction system using the suction object suction tube which concerns on one Embodiment of this invention. It is a schematic block diagram which shows the other embodiment of the suction object suction system using the suction object suction tube which concerns on one Embodiment of this invention. It is a right side view which shows the unused state of the suctioned material guide tube which concerns on other embodiment of this invention. It is a schematic block diagram which shows still another embodiment of the suction object suction system using the suction object suction tube which concerns on one Embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described in detail. It should be noted that the present embodiment described below does not unreasonably limit the content of the present invention described in the claims, and all the configurations described in the present embodiment are indispensable as the means for solving the present invention. It is not always the case.

First, the schematic configuration of the suctioned object guide tube according to the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a usage state of the suctioned object guide tube according to the embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line AA of the present invention. It is a perspective view which shows the unused state of the suction | subject guide tube which concerns on embodiment.

The suctioned object guide tube 100 of the present embodiment is a suction device (fixed installation type or portable sputum) when sucking and removing a suctioned object such as sputum and other body fluids from the airway including the lower airway of the patient. It is attached to the tip of a suction tube connected to the suction device) and is used as a member that guides the object to be sucked to the upper airway side by the suction force (negative pressure) of the suction device. As shown in FIG. 1, the suctioned object guide tube 100 includes a guide tube main body 110, an inner lid 120, and a tip cap 130.

The guide tube main body 110 is provided with a connecting tube 112 as a connecting portion connected to the suction tube on one surface. Further, as shown in FIG. 2, the portion of the guide tube main body 110 facing the connecting tube 112 has an opening 110a having an inner diameter of, for example, about 17 mm, and the inner peripheral surface 110b is the base of the connecting tube 112. It is a continuous curved surface toward the end. As shown in FIG. 2, the base end side of the guide tube main body 110 is provided with a fitting recess 110a1 that can be fitted with the fitting convex portion 120d on the base end side of the inner lid 120. As shown in FIG. 2, the inner peripheral surface 110b of the guide tube main body 110 has a gentle curved surface that shrinks in diameter as it approaches the base end of the connecting tube 112 from the upper end side of the fitting recess 110a1.

The connecting pipe 112 of the guide pipe main body 110 has a shape in which the diameter is reduced toward the tip, and the tip thereof is an opening 112a. The inner diameter of the opening 112a is, for example, about 7.0 mm. The shape of the connecting pipe 112 may be a shape that reduces the diameter toward the tip, and is not limited to a shape that gradually reduces the diameter toward the tip as shown in FIG.

Further, in the present embodiment, the guide tube main body 110 is provided with the connection tube 112 as a "connection portion" to be connected to the suction tube, but the connection tube 112 inserted inside the suction tube is provided as the connection portion. Not limited. That is, as the "connecting portion" provided in the guide tube main body 110, for example, a hole in which the suction tube can be inserted and fixed may be provided on one surface of the guide tube main body 110.

As shown in FIG. 1, a holder 116 capable of gripping a tubular member is provided at one end of the lower end side outer periphery of the guide tube main body 110. The holder 116 is configured so that a pair of grip portions 116a protrude from one end of the lower end side outer periphery of the guide tube main body 110, and as a tubular member, for example, the tip of the suction tube of the suction device can be fixed upward. It has become. As shown in FIGS. 1 and 2, the holder 116 has a structure in which the inner peripheral surface 116b expands in diameter from the proximal end side toward the distal end side, and has an inner tapered surface.

As shown in FIG. 3, an inner lid 120 for introducing a suctioned object into the suctioned object guiding tube 100 is provided at a portion of the guide tube main body 110 facing the connecting tube 112 via a hinge mechanism 118. It is provided so that it can be opened and closed. That is, the inner lid 120 is a hinge cap that can be opened and closed via the hinge mechanism 118 with respect to the opening 110a of the guide tube main body 110. The installation mode of the inner lid 120 with respect to the guide tube main body 110 is not limited to the mode of the hinge cap via the hinge mechanism 118, and for example, a recess that fits into both connection portions of the guide tube main body 110 of the inner lid 120. The guide tube main body 110 may be opened and closed in another manner so as to provide the convex portion. Further, the hinge mechanism 118 connecting the guide tube main body 110 and the inner lid 120 may be omitted, and the guide tube main body 110 and the inner lid 120 may be configured separately.

As shown in FIG. 2, the inner lid 120 is formed of a curved surface whose inner peripheral surface 120b is reduced in diameter from the proximal end side to the distal end side, and when the inner lid 120 is closed with respect to the guide tube main body 110, the inner lid 120 is formed. The inner peripheral surface 120b has a curved surface continuous with the inner peripheral surface 110b of the guide tube main body 110, and the inner peripheral surface 120b of the inner lid 120 and the inner peripheral surface 110b of the guide tube main body 110 form a so-called olive-shaped space. Is configured.

Further, the inner lid 120 has an opening 120a having an inner diameter of, for example, about 4.0 mm on the tip side, and as shown in FIG. 2, from the outer edge to the base end of the opening 120a on the tip side of the inner lid 120. A tapered surface 120c is provided so that the diameter is expanded in a predetermined range. The opening 120a of the inner lid 120 can be opened and closed by a tip cap 130 connected via a connection cord 114 connected to one end of the inner lid 120.

As shown in FIG. 2, the tip cap 130 has a convex portion 132 on the central side that closes the opening 120a of the inner lid 120 and an outer edge of the convex portion 132 so as to ensure hermeticity with the opening 120a of the inner lid 120. Is configured to have a groove 134. The configuration of the tip cap 130 is not limited to the mode shown in FIG. 2, and may be a configuration of another mode.

As described above, at the base end of the inner lid 120 on the opposite side of the opening 120a, as shown in FIG. 2, in order to ensure the airtightness between the inner lid 120 and the opening 120a of the guide tube main body 110. A fitting convex portion 120d that can be fitted into the fitting recess 110a1 provided at the inner edge of the opening 120a of the guide tube main body 110 is provided. The configuration of the base end side of the inner lid 120 is not limited to the embodiment shown in FIG. 2, and may be other configurations.

When the suctioned object guide tube 100 of the present embodiment is connected to the suction tube of the suction device by sputum suction or the like and sucks sputum or the like in the respiratory tract as a suction target, the inner lid 120 is used as the guide tube main body. It opens with respect to the opening 110a of 110. Next, by bringing the inner peripheral surface 110b of the guide tube main body 110 close to the end of the tracheal tube or tracheal cannula attached to the patient and bringing them into close contact with each other, the suction force (negative pressure) from the suction device causes the trachea to enter the lungs. Vacuuming (induction) is performed to move the suctioned material such as sputum in the lower respiratory tract leading to the terminal bronchiole to the upper respiratory tract side. Then, after the suctioned object is moved to the upper respiratory tract side, the suctioned object such as sputum guided to the upper respiratory tract side can be sucked by a suction device such as a suction catheter.

Further, when sucking nasal discharge or the like in the nasal cavity as a suction target, as shown in FIGS. 1 and 2, the inner lid 120 covers the opening 110a of the guide tube main body 110 and the tip cap 130. Is removed from the opening 120a to open the opening 120a, and then the tapered surface 120c on the outer edge of the opening 120a of the inner lid 120 is brought close to the nasal cavity and brought into close contact with the nasal cavity. Then, vacuuming is performed to move the suctioned object such as nasal discharge in the nasal cavity to the front side of the nasal cavity by the suction force from the suction device, and the suctioned object can be sucked and removed as it is. Further, the suctioned object can be sucked and removed by sucking the suctioned object moved to the front side of the nasal cavity by vacuuming with a suction device such as a suction catheter.

On the other hand, when the suctioned object guide tube 100 is not used, in order to prevent the suctioned object remaining in the suction tube from falling due to the backflow and foreign matter such as dust from entering the suctioned object guide tube 100, FIG. As shown in the above, the inner lid 120 closes the opening 110a of the guide tube main body 110, and the tip cap 130 closes the opening 120a to form a lid.

Next, the deployed state of the suctioned object guide tube according to the embodiment of the present invention will be described with reference to the drawings. FIG. 4 is a perspective view showing a deployed state of the suctioned object guide tube according to the embodiment of the present invention, and FIG. 5 is a front view showing the deployed state of the suctioned object guide tube according to the embodiment of the present invention. FIG. 6 is a plan view showing a deployed state of the attracted object guide tube according to the embodiment of the present invention, and FIG. 7 is a plan view showing the deployed state of the attracted object guide tube according to the embodiment of the present invention. It is a bottom view which shows the state.

As shown in FIGS. 4 to 7, the suctioned object guide tube 100 of the present embodiment is composed of an integrally molded body including a guide tube main body 110, an inner lid 120, a hinge mechanism 118, a tip cap 130, and a connection cord 114. There is. That is, each component of the suctioned object guide tube 100 is injection-molded with a thermoplastic resin such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), ABS resin, and acrylic resin (PMMA). It is configured as an integrally molded body.

As shown in FIGS. 6 and 7, the hinge mechanism 118 is provided so as to be able to open and close in the vertical direction with respect to the direction in which the holder 116 of the guide tube main body 110 is arranged. The hinge mechanism 118 includes a hinge connecting portion 118a that connects the guide tube main body 110 and the inner lid 120, and leaf springs 118b that are provided on both sides of the hinge connecting portion 118a. Therefore, as shown in FIG. 5, when the inner lid 120 is opened with respect to the guide tube main body 110, the open state of the inner lid 120 can be maintained by the restoring force of the leaf spring 118b.

As shown in FIGS. 6 and 7, the connection cord 114 is provided so as to extend in the vertical direction with respect to the direction in which the hinge mechanism 118 of the inner lid 120 is arranged. Specifically, the connection cord 114 is arranged to face the holder 116 when the inner lid 120 is closed with respect to the guide tube main body 110 and the suctioned object guide tube 100 is viewed in a plan view from the connection tube 112. As described above, the hinge mechanism 118 of the inner lid 120 is provided so as to extend in the vertical direction with respect to the direction in which the hinge mechanism 118 is arranged.

By arranging each component of the suctioned object guide tube 100 of the present embodiment in this way, the opening / closing operation of the inner lid 120 with respect to the opening 120a of the guide tube main body 110 and the tip cap with respect to the opening 120a of the inner lid 120. The opening and closing operations of 130 do not interfere with each other. Therefore, the work efficiency of the opening / closing operation of the inner lid 120 and the tip cap 130 when the suctioned object guide tube 100 is used is improved.

Next, the suctioned object suction system and the suctioned object guiding method to which the suctioned object guiding tube 100 according to the embodiment of the present invention is applied will be described with reference to the drawings. FIG. 8 is a schematic configuration diagram of an attracted object suction system according to an embodiment using an attracted object guide tube according to an embodiment of the present invention. In addition, FIG. 8 shows a tracheal cannula attached to a patient by tracheal incision as an embodiment of an inhaled object guiding method to which an inhaled object guiding tube 100, an inhaled object suction system 1 and an inhaled object suction system 1 are applied. It shows a state in which sputum is induced as an object to be sucked through a ventilation member for wearing on a human body and then sucked.

The suctioned object suction system 1 is applied when sucking a suctioned object such as a trachea A1 which is an airway of a patient P1 who is a living body and a body fluid such as sputum clogged in a lung or the like (not shown). As shown in FIG. 8, the suctioned object suction system 1 is configured by connecting the suctioned object guide tube 100 described above to one end of the suction tube 12 of the suction device 10. The suction device 10 accommodates a suction pump 14 that is a negative pressure source for generating suction pressure in a suction tube 12 made of a flexible resin such as polyurethane, and an object to be sucked from the suction tube 12. It is provided with a portion 16 and has a function of sucking an object to be sucked. When a portable suction device is used as the suction device 10, the suction tube 100 of the present embodiment can be directly connected to the portable suction device. In this case, the suction tube 12 is used. May be omitted. Further, in the suctioned object suction system 1 of the present embodiment, the suctioned object guide tube 100 is attached to one end of the suction tube 12, but the suctioned object guide tube 100 is configured to be integrated with the suction tube 12. You can also do it.

In the present embodiment, for example, an incision is made in which the inner lid 120 of the suctioned object guide tube 100 is opened with respect to the guide tube main body 110, and then the guide tube main body 110 is formed in the throat of the patient P1 as shown in FIG. It is inserted into the hole A2 and brought close to the tracheal cannula 20 fixed by the fixing plate 22 and the cuff 24. Then, the suction operation by the suction device 10 is started after the inner peripheral surface 110b of the guide tube main body 110 of the suctioned object guide tube 100 is brought into contact with one end 20a of the tracheal cannula 20. The suction force (negative pressure) from the suction device 10 is transmitted to the tracheal cannula 20 via the suction tube 100, so that sputum and the like in the lower respiratory tract from the trachea A1 to the terminal bronchioles in the lungs are covered. Vacuuming is performed to move the aspirate toward the upper respiratory tract.

That is, in the suctioned object suction system 1 and the suctioned object guiding method of the present embodiment, the tracheal cannula 20 that reaches the inside of the trachea A1 by inserting the suctioned object guiding tube 100 connected to the suction tube 12 into the incision hole A2. The suctioned object such as sputum sucked from the tracheal cannula 20 is moved toward the upper airway side by being brought into close contact with one end 20a of the tracheal cannula 20. After that, an aspirated object such as sputum in the trachea A1 guided toward the upper respiratory tract side is aspirated by a suction catheter.

In this embodiment, the diameter of the opening 110a of the suctioned object guide tube 100 is made slightly larger than the diameter of one end 20a of the tracheal cannula 20 so as to have a margin. Specifically, for example, when the outer diameter of one end 20a of the tracheal cannula 20 is φ15 mm, the inner diameter of the opening 110a of the suctioned object guide tube 100 is set to 17 mm, so that both members can be easily brought into close contact with each other. Therefore, it is possible to suppress an excessive close contact operation, that is, a patient's choking accident due to the connection of both members.

As described above, in the suctioned object suction system 1 and the suctioned object guiding method of the present embodiment, the suctioned object guiding tube 100 passes the suctioned object such as sputum in the lower respiratory tract from the trachea A1 to the terminal bronchiole to the upper respiratory tract. After vacuuming to move toward the side, the suctioned object moved into the trachea A1 is sucked toward the upper respiratory tract side with a suction device such as a suction catheter. That is, the suctioned object guide tube 100 of the suctioned object suction system 1 of the present embodiment sucks the suctioned object such as sputum in the lower respiratory tract from the trachea A1 to the terminal bronchiole with a suction device such as a suction catheter. For ease of use, it is used as an attachment that guides the trachea A1 toward the upper respiratory tract side.

Next, as an application example of the suctioned object induction method according to the present embodiment, a sputum suction method that can be performed using the suctioned object suction system 1 will be described. When aspirating an aspirated substance such as sputum from the lower respiratory tract of patient P1, first auscultate the lungs of patient P1 with a stethoscope, and then use a bag valve mask, for example, with a positive pressure of 40 cmH ₂ O. Inflate the lungs with pressurized ventilation for 5 seconds. At this time, if the peripheral lung is more atelectasis than the storage location of the suctioned object, it may be difficult to squeeze the suctioned object to the upper respiratory tract side because there is no air in the peripheral lung even after vacuuming. .. Therefore, in the present embodiment, pressure ventilation is performed before the suction treatment.

Further, when sputum aspiration is required, the respiratory condition of the patient P1 is poor and the blood oxygen saturation is often low, and during the sputum aspiration, the patient P1 cannot breathe and tends to become hypoxic. Therefore, in the present embodiment, when the above-mentioned pressurized ventilation is performed before the suction treatment, oxygen is mixed and the pressure ventilation is performed to stabilize the patient's condition before the suction treatment is started. In order to stabilize the condition of patient P1 in a short time, high-concentration oxygen may be mixed with pressurized ventilation, but if there is no request for a short time, pressurized ventilation with normal air containing oxygen may be used. May be. Further, a pressurized ventilation device such as a bag valve mask can also be included as a configuration of the suctioned object suction system 1 of the present embodiment.

After that, for example, vacuuming is performed for 5 seconds with a negative pressure of 60 _cmH2O to contract the entire lung to induce a suctioned substance such as sputum to the upper respiratory tract side, and then sputum induced to the upper respiratory tract side, etc. The suctioned object is sucked with a suction device such as a suction catheter. At this time, if the lungs _are squeezed by vacuuming, the lungs become atelectasis. become. As described above, in the suctioned object suction system 1 of the present embodiment, pressure ventilation is performed before and after the suction treatment performed by contracting the entire lung by vacuuming with negative pressure.

In the suction object guidance method to which the suction object suction system 1 of the present embodiment is applied, after listening to the patient P1, pressure ventilation with positive pressure, vacuuming with negative pressure, and a subject guided to the upper airway side are performed. The cycle of suctioning the aspirated material and then performing pressure ventilation with positive pressure again is repeated until the symptoms of patient P1 are improved. As described above, in the suctioned object suction system 1 of the present embodiment, after the suctioned object guide tube 100 is connected to the tip of the suction tube 12 of the suction device 10, the suctioned object in the lower airway is moved to the upper airway side. Minimally invasive sputum aspiration is easily realized by performing a vacuuming operation that guides the person toward the airway and sucking the suctioned object guided to the upper airway side with a suction device such as a suction catheter. It will be like. Further, in the present embodiment, by performing pressurized ventilation before and after the suction operation, minimally invasive sputum suction that further reduces the pain of the patient P1 can be realized.

In the present embodiment, the suctioned object suction system 1 is attached to the tracheal cannula 20 in which the suctioned object guide tube 100 connected to the suction tube 12 is attached to the throat of the patient P1. After vacuuming by bringing the inner peripheral surface 110b of 110 into contact with each other, the suctioned object guided to the upper airway side is sucked by a suction catheter or the like, but other embodiments can also be applied. For example, when the tracheal cannula 20 is not attached to the incision hole A2 formed in the throat of the patient P1, the inner lid 120 is closed with respect to the guide tube main body 110 of the suctioned object guide tube 100, and the inner lid 120 is closed. After the distal opening 120a is brought into close contact with the incision hole A2, vacuuming is performed to guide the suctioned object such as sputum in the lower respiratory tract from the trachea A1 to the terminal bronchiole to the upper respiratory tract side, and then the suction catheter. You may suck and remove the suctioned object guided to the upper respiratory tract side with a suction device such as.

Further, the suctioned object suction system 1 of the present embodiment may be configured as shown in FIG. 9 even if a ventilation member for mounting on a human body such as a tracheal cannula 20 is not intubated. FIG. 9 shows the end of the suction mask 50 covering the oral cavity of the patient P1 as an embodiment of the suctioned object guiding method to which the suctioned object guiding tube 100, the suctioned object suction system 1 and the suctioned object suction system 1 are applied. An embodiment is shown in which an object to be sucked guide tube 100 connected to a suction tube 12 of a suction device 10 is brought into close contact with a branch port 54 branched from a connection member 52 attached to the portion to guide the object to be sucked. As the intake mask 50, for example, a mask such as a mouth and nose mask can be used.

In the present embodiment, the diameter of the opening 110a of the suction object guide tube 100 is made slightly larger than the diameter of the branch port 54 of the connecting member 52 so as to have a margin. Specifically, for example, when the outer diameter of the branch port 54 of the connecting member 52 is φ15 mm, the inner diameter of the opening 110a of the suction object guide tube 100 is set to 17 mm, so that both members can be easily brought into close contact with each other. Above, it is possible to suppress an excessive close contact operation, that is, a patient's choking accident due to the connection of both members.

In this way, by bringing the inner peripheral surface 110b from the opening 110a side of the guide tube main body 110 of the suctioned object guide tube 100 into close contact with the branch port 54 of the connecting member 52 of the intake mask 50, the trachea A1 to the terminal bronchiole bronchiole Since the inhaled material such as sputum in the lower respiratory tract is vacuumed, the inhaled material can be guided into the oral cavity of the upper respiratory tract. Therefore, it is possible to easily suck the suctioned object guided into the oral cavity of the upper respiratory tract with a suction device such as a suction catheter. Further, in the present embodiment, by performing vacuuming through the inspiratory mask 50, it becomes possible to guide the suctioned object not only in the oral cavity but also in the nasal cavity toward the suction mask 50 and suck it. ..

Further, in the present embodiment, as the suctioned object guiding tube 200 connected to the suction tube 12, the suctioned object guiding tube 200 having an inner lid 220 as shown in FIG. 10 having a long cap having a length of, for example, about 140 mm. If you use, you do not have to use a suction device such as a suction catheter. That is, the inner lid 220 provided to be openable and closable on the guide tube main body 210 including the connection pipe 212 and the holder 216 has a rounded tip shape and has a tip portion 221 having an opening 221a at the tip and a guide portion 221. If a long hollow tube portion 222 is provided between the base end portion 223 connected to the tube main body 210, the suctioned object guide tube 200 connected to the suction tube 12 can be sucked. After guiding the object into the oral cavity, the induced object to be sucked can be sucked.

Specifically, first, the inner lid 220 is opened with respect to the guide tube main body 210 of the suction target guide tube 200, and then the guide tube main body 210 is brought into close contact with the branch port 54 of the connection member 52 of the suction mask 50. By doing so, vacuuming is performed to guide an inhaled object such as sputum in the lower respiratory tract of patient P1 to the upper respiratory tract. Then, after closing the long cap-shaped inner lid 220 with respect to the guide tube main body 210, the suction mask 50 is removed from the face of the patient P1, and the tip portion 221 of the inner lid 220 is directly inserted into the oral cavity of the patient P1. insert. Then, the suctioned object guided into the oral cavity is sucked from the opening 221a of the tip portion 221 of the inner lid 220.

As described above, in the suctioned object guide tube 200 of the present embodiment, the shape of the tip portion 221 of the inner lid 220 is rounded, so that when the inner lid 220 is inserted into the oral cavity and the suctioned object is sucked. , It becomes possible to suppress the damage of the oral cavity. Further, the suctioned object guide tube 200 of the present embodiment can be applied as a so-called olive tube for suctioning a suctioned object such as a nasal discharge in the nasal cavity. Since the suction tube 200 of the present embodiment is applied as a suction tube for suction in the oral cavity, the tube portion 222 is provided with a bent portion of, for example, about 75 ° so that it can be easily inserted into the oral cavity. It may be configured to have. Further, a tip cap capable of opening and closing the opening 221a of the tip portion 221 of the inner lid 220 may be provided.

Further, the suctioned object suction system 1 of the present embodiment is shown in FIG. 11 as an embodiment of the suctioned object guiding method to which the suctioned object guiding tube 100, the suctioned object suction system 1 and the suctioned object suction system 1 are applied. It may be configured as shown in. That is, as shown in FIG. 11, the suctioned object suction system 1 of the present embodiment is a patient under the control of a ventilator in which the tracheal tube 30 is intubated from the mouth of the patient P1 into the trachea A1 in the ICU or the like after surgery. It is applied to P1 when sucking / removing a suctioned object such as sputum. Specifically, the tracheal tube 30 is inserted toward the inside of the trachea A1, the tip end side of the tracheal tube 30 is fixed with the cuff 32, and the suctioned object is guided to the joint portion 30a on the proximal end side of the tracheal tube 30. By bringing the tube 100 into close contact, an object to be sucked such as sputum is guided to the upper respiratory tract side. Then, by sucking the suctioned object guided to the upper respiratory tract side with a suction device such as a suction catheter, the suctioned object can be removed.

In the present embodiment, the diameter of the opening 110a of the suctioned object guide tube 100 is made slightly larger than the diameter of the joint portion 30a of the tracheal tube 30 so as to have a margin. Specifically, for example, when the outer diameter of the joint portion 30a of the tracheal tube 30 is φ15 mm, the inner diameter of the opening 110a of the suctioned object guide tube 100 is set to 17 mm, so that both members can be easily brought into close contact with each other. Above, it is possible to suppress an excessive close contact operation, that is, a patient's choking accident due to the connection of both members.

Next, the actions and effects of the suctioned object guide tube 100 and the suctioned object suction system 1 according to the embodiment of the present invention will be described.

The suction object guide tube 100 of the present embodiment has a configuration in which the connecting pipe 112 of the guide tube main body 110 connected to one end of the suction tube 12 of the suction device 10 is reduced in diameter toward the tip. Therefore, since the adhesion between the connecting pipe 112 of the guide tube main body 110 and one end of the suction tube 12 is enhanced, the suction pressure from the suction device 10 is surely applied to the suctioned object guide tube 100, and the suctioned object is sucked. Efficiently guide the suctioned object such as sputum in the lower airway from the trachea to the terminal bronchus to the upper airway side through the guide tube 100 in order to facilitate suction with a suction device such as a suction catheter. Therefore, the suction efficiency is improved.

That is, after attaching the suctioned object guide tube 100 of the present embodiment to the tip of the suction tube 12 of the suction device 10, the tracheal tube 30, the tracheal cannula 20, and the suction mask in which the suctioned object guide tube 100 is attached to the patient. By contacting and communicating with a ventilation member for mounting on a human body such as 50, the suctioned object can be guided to the upper airway side, so that the suctioned object can be guided to the upper airway side by a simple procedure. Therefore, suction of the suctioned object from the upper respiratory tract side (exhaust to the outside of the body) can be easily performed with minimal invasiveness.

Vacuuming using the negative pressure of the suction device 10 was also possible by bringing the suction tube 12 into close contact with a ventilation member for mounting on a human body such as the tracheal tube 30 and the tracheal cannula 20. However, when the suction tube 12 is used by cutting the suction tube 12 with scissors, the cross section of the suction tube 12 is irregular and the tube diameter is different. It was difficult to make it adhere to the member, and the effect of vacuuming was different depending on the skill of the practitioner. Therefore, in the present embodiment, the suction tube 120 is attached to the suction tube main body 110 with the connection tube 112 provided at the tip of the suction tube 12, and the adhesion between the suction tube 12 and the connection tube 112 is improved. In addition, the adhesion to the ventilation member for mounting on the human body such as the tracheal cannula 20 and the tracheal tube 30 is improved. Therefore, according to the present embodiment, even if the practitioner is not a skilled practitioner, the same vacuuming effect as that of a skilled practitioner can be obtained, and the same vacuuming can be performed by anyone.

Further, in the present embodiment, the inner lid 120 is provided so as to be openable and closable with respect to the opening 120a of the guide tube main body 110 having the connecting tube 112. Therefore, when the inner lid 120 is opened with respect to the opening 110a of the guide tube main body 110, the inner peripheral surface 110b of the guide tube main body 110 is in close contact with various human body mounting ventilation members such as the tracheal cannula 20 attached to the patient P1 side. It becomes easier to do.

Therefore, by improving the airtightness between the suction target guide tube 100 and various ventilation members for mounting on the human body such as the tracheal cannula 20, the suction pressure from the suction device 10 is mounted on the various human bodies via the suction target guide tube 100. Since it is easily transmitted to the ventilation member, it becomes possible to easily move the suctioned object such as peripheral sputum or foreign matter in the lower respiratory tract from the trachea A1 to the terminal bronchiole to the upper respiratory tract side. Then, the suctioned object guided to the upper respiratory tract side becomes a suction target because it can be easily sucked because it is close to the suction device such as the suction catheter used when sucking the suctioned object. The suction efficiency of the object to be sucked is improved.

Further, in the present embodiment, when the inner lid 120 is closed with respect to the opening 120a of the guide tube main body 110, a continuous curved surface is formed by the inner peripheral surface 110a of the guide tube main body 110 and the inner peripheral surface 120a of the inner lid 120. Then, an olive-shaped space is formed in the suctioned object guide tube 100. Therefore, the inner lid 120 is closed with respect to the opening 120a of the guide tube main body 110 in a state where the connection tube 112 of the guide tube main body 110 of the object to be sucked guide tube 100 and the suction tube 12 are connected, and the tip cap 130. When the suction operation is performed by bringing the patient closer to the nasal cavity of the patient P1 with the inner lid 120 open to the opening 120a, the nasal cavity such as nasal juice is sucked through the olive-shaped space, similar to the so-called olive tube. It will be guided to the front side of the nasal cavity and can be sucked efficiently.

Further, in the present embodiment, when the outer diameter of the suction port of the tracheal cannula 20 is small, the inner lid 120 is closed with respect to the guide tube main body 110, and the tracheal cannula 20 is brought into close contact with the opening 120a of the inner lid 120. By vacuuming and sucking, the suctioned object can be guided to the upper respiratory tract side and then sucked, so that the suction efficiency can be improved.

As described above, in the present embodiment, various human bodies such as a tracheal cannula 20 and a suction catheter are attached when the suctioned object guide tube 100 sucks the suctioned object such as sputum from the suction tube 12 of the suction device 10 and the patient P1 side. By opening and closing the inner lid 120 according to the mode of the ventilation member for human body, the contact portion with the ventilation member for mounting on various human bodies can be changed to increase the degree of adhesion. Therefore, by attaching the suctioned object guide tube 100 of the present embodiment as an attachment inserted between the suction tube 12 of the suction device 10 and various ventilation members for mounting on a human body that are inserted or attached to the patient P1 side. , It functions as a guide tube to guide the attracted material such as sputum on the lower respiratory tract side to the upper respiratory tract side, and easily sucks the sputum etc. guided to the upper respiratory tract side to attract minimally invasive sputum. You will be able to realize suction of things.

That is, in general, when a suction catheter connected to a suction tube is inserted into the respiratory tract to perform sputum aspiration, a sufficient suction effect cannot be obtained unless the tip of the suction catheter reaches the sputum to be aspirated. .. In addition, in the blind insertion operation of the suction catheter, there is a concern about the risk of airway damage to the patient due to airway stimulation due to deep insertion of the suction catheter. On the other hand, mechanical cough assistance (MI-E) can achieve minimally invasive sputum aspiration in a short time. However, the device that performs mechanical cough assist (MI-E) is expensive because it is configured to electromechanically control the intake / expiratory pressure, and the negative pressure is applied after the positive pressure is applied by the machine. Since skillful skill is required for the suction operation, it is difficult to perform the suction operation without operation training.

On the other hand, after the suctioned object guide tube 100 of the present embodiment is attached to the tip of the suction tube 12, it is brought into close contact with a human body mounting ventilation member such as a tracheal cannula 20 or a tracheal tube 30 mounted on the patient P1 side. When used as an attachment, both the degree of adhesion between the suctioned object guide tube 100 and the suction tube 12 and the degree of adhesion between the attracted object guide tube 100 and the ventilation member for mounting on a human body are enhanced. Therefore, the suction force (negative pressure) from the suction device 10 is transmitted to the ventilation member for human body mounting such as the tracheal cannula 20 and the tracheal tube 30 without leaking from the contact portion with the suction tube 12 and the ventilation member for mounting on the human body. become.

That is, after connecting the connecting pipe 112 of the suctioned object guide tube 100 to one end of the suction tube 12, the inner peripheral surface 110b having the suction tube main body 110 on the opening 110a side of the suctioned object guide tube 100 is on the patient P1 side. When it is brought into close contact with a ventilation member for human body mounting such as the tracheal cannula 20 or the tracheal tube 30 attached to the patient, vacuuming via the induction tube main body 110 causes suction of peripheral sputum or foreign matter in the lower respiratory tract of the patient P1. Objects can be moved to the upper respiratory tract side. Therefore, the object to be sucked that has moved to the upper respiratory tract side can be easily removed by suction using a suction device such as a suction catheter. In particular, in the present embodiment, as described above, before the vacuuming operation with negative pressure and after the suction operation of the suctioned object guided to the upper airway side, pressurized ventilation with positive pressure by a bag valve mask or the like is performed. By doing so, it becomes possible to easily remove the suctioned object such as sputum, which is minimally invasive.

As described above, by attaching the suctioned object guide tube 100 of the present embodiment to the tip of the suction tube 12 and using it as an attachment to be brought into close contact with the human body mounting ventilation member mounted on the patient P1 side, the suctioned object can be attached. Since it can be easily guided to the upper respiratory tract side, it becomes easier to suck the suctioned object guided to the upper respiratory tract side, and the suction efficiency is improved. In particular, when performing sputum aspiration, the method of blindly inserting a suction catheter deeply into the airway of patient P1 to induce cough not only causes pain to patient P1, but also causes cerebrovascular accidents due to increased blood pressure. Although there is a risk of serious complications such as airway injury, in the present embodiment, the risk of such pain and complications can be suppressed.

Further, in the present embodiment, efficient sputum aspiration can be performed without using an expensive device for mechanical cough assist (MI-E), so that the pain of the patient P1 can be reduced at a lower cost. As a result, suction of aspirated substances such as minimally invasive sputum that can enhance the QOL (Quality Of Life) of the patient P1 will be realized. Further, in the present embodiment, since the suctioned object guide tube 100 has a simple structure, a sputum suction method (for example, a bronchoscope, a percussion ventilator) performed by using a mechanical cough assist (for example, MI-E) or a device is performed. ), It is possible to mass-produce the suctioned object guide tube 100 at a lower price, and it is possible to reduce the labor involved in preparation and cleaning up. Further, in the present embodiment, it is possible to more reliably induce the suctioned object than the sputum suction method such as postural drainage and squeezing (manual respiratory assistance). In particular, postural drainage and squeezing involve the risk of fractures due to postural change in patients who are bedridden for a long period of time, but with vacuuming according to this embodiment, the suction effect of the aspirated object can be obtained regardless of the patient's position. Therefore, the risk of fracture due to postural change can be reduced.

Further, in the present embodiment, since the inner lid 120 can be opened and closed with respect to the guide tube main body 110 via the hinge mechanism 118, the inner lid 120 can be easily opened and closed with one hand when using sputum suction or the like. Since it can be done, work efficiency such as sputum suction is improved. Further, by opening the inner lid 120 with respect to the guide tube main body 110 after using the suctioned object guide tube 100, maintenance such as cleaning can be easily performed.

Further, in the present embodiment, a holder 116 capable of gripping a tubular member such as a suction tube 12 is provided at one end of the outer periphery of the lower end side of the guide tube main body 110. Therefore, the tip of the suction tube 12 can be fixed upward so as not to drip the drainage remaining in the suction tube 12 after use after the sputum suction operation is completed. In particular, in the present embodiment, the holder 116 of the guide tube main body 110 has a structure in which the inner peripheral surface 116b expands in diameter from the proximal end side to the distal end side, so that a suction tube made of a flexible resin is used. The 12 can be easily attached from the tip end side to the base end side of the holder 116 and then fixed.

Further, in the present embodiment, the guide tube main body 110, the inner lid 120, the hinge mechanism 118, the tip cap 130, and the connection cord 114 constituting the suctioned object guide tube 100 are made of an integrated resin molded body. Therefore, by injection molding the thermoplastic resin, it is possible to easily manufacture the suctioned object guide tube 100 including each component in an unfolded state. At that time, paying attention to the arrangement of the hinge mechanism 118 that connects the guide tube main body 110 and the inner lid 120 and the connection cord 114 that connects the inner lid 120 and the tip cap 130, as an integrally molded body in the expanded state. By configuring it, it is easy to handle, and usability for medical personnel and the like at the time of use is improved. In particular, when the suctioned object guide tube 100 is composed of a plurality of separable components, there is a risk that the components will be lost. However, since the suctioned object guide tube 100 of the present embodiment is composed of a single resin molded body, the components are not lost.

Although one embodiment of the present invention has been described in detail as described above, those skilled in the art can easily understand that many modifications that do not substantially deviate from the new matters and effects of the present invention are possible. You can do it. Therefore, all such modifications are included in the scope of the present invention.

For example, a term described at least once in a specification or drawing with a different term in a broader or synonymous manner may be replaced by that different term anywhere in the specification or drawing. Further, the configuration and operation of the suction object guide tube and the suction object suction system are not limited to those described in the embodiment of the present invention, and various modifications can be carried out.

1 Suctioned object suction system 10 Suction device 12 Suction tube 14 Suction pump 16 Accommodating part 20 Tracheal cannula 20a One end 22 Fixing plate 24 Cuff 30 Suction tube 32 Cuff 50 Suction mask 52 Connection member 54 Branch port 100, 200 Suctioned object induction Tube 110, 210 Guide tube body 110a Opening 110a1 Fitting recess 110b Inner peripheral surface 112, 212 Connection tube 112a Opening 114, 214 Connection cord 116, 216 Holder 116a Grip part 116b Inner peripheral surface 118 Hinge mechanism 118a Hinge connection part 118b Leaf spring 120, 220 Inner lid 120a Opening 120b Inner peripheral surface 120c Tapered surface 120 ⅾ Fitting convex part 130, 230 Tip cap 132 Convex part 134 Groove part 221 Tip part 221a Opening part 222 Pipe part 223 Base end part A1 Air duct A2 incision hole P1 patient (living body)

Claims (11)

In the suction object guide tube connected to the suction tube of the suction device,
A guide tube main body provided with a connection portion connected to the suction tube,
The inner lid is provided at one end of the guide tube main body, has a tapered surface whose outer peripheral surface on the distal end side expands in diameter from the distal end to the proximal end, and has an opening on the distal end side. Aspirated object guide tube. The suction tube according to claim 1, wherein the inner lid is provided so as to be openable and closable with respect to a portion of the guide tube body facing the connection tube. The invention according to claim 1 or 2, wherein the inner peripheral surface of the inner lid is formed of a curved surface whose diameter is reduced from the proximal end side to the distal end side, and is a curved surface continuous with the inner peripheral surface of the guide tube main body. Aspirated object guide tube. The suctioned object guide tube according to any one of claims 1 to 3, wherein the connection portion of the guide tube main body is a connection tube whose diameter is reduced toward the tip. The suction tube to be sucked according to any one of claims 1 to 4, wherein a holder capable of gripping a tubular member is provided at one end of the outer periphery of the lower end side of the guide tube main body. The suctioned object guide tube according to claim 5, wherein the holder has an inner peripheral surface whose diameter increases from the proximal end side to the distal end side. The suctioned object guide tube according to any one of claims 1 to 6, wherein the inner lid is a hinge cap that can be opened and closed with respect to the guide tube main body via a hinge mechanism. The object to be sucked according to any one of claims 1 to 7, further comprising a tip cap that is openable and closable with respect to the opening of the inner lid via a connection cord connected to one end of the inner lid. Induction tube. The suction tube according to claim 8, wherein the guide tube main body, the inner lid, the hinge mechanism, the tip cap, and the connection cord are integrally molded. The hinge mechanism is provided so as to be able to open and close in a vertical direction with respect to the direction in which the holder of the guide tube main body is arranged.
The hinge mechanism of the inner lid is arranged so that the connection cord faces the holder when the inner lid is closed and viewed from the connection pipe in a plan view with respect to the guide tube main body. The object to be sucked guide tube according to claim 8 or 9, which is provided so as to extend in the vertical direction with respect to the direction in which the tube is located. In the suctioned object suction system that sucks the suctioned object from the living body,
A suction device equipped with a suction tube and
The suctioned object suction system comprising the suctioned object guide tube according to any one of claims 1 to 10 connected to one end of the suction tube.

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