Attracted object guiding device and attracted object attracting system

Abstract

The present application realizes easier and less invasive sputum suction. A suction object guiding device (100) guides a suction object from a side of an upper respiratory tract of a living body, and has a suction object discharge port (101) capable of discharging the suction object, a patient side connection interface (103) capable of being connected to a patient side, an inhalation interface (104) capable of being connected to an inhalation device, and a switching valve that switches a connection source of the patient side connection interface to either one of the suction object discharge port and the inhalation interface. The suction object guiding device (100) further has a housing (102) having the suction object discharge port (101), the patient side connection interface (103), and the inhalation interface (104), and the switching valve is configured to be provided in the housing in a slidable manner and capable of switching the connection source of the patient side connection interface to either one of the suction object discharge port and the inhalation interface.

Description

Technical Field

[0001] This disclosure relates to an object guiding device and an object attraction system. Background Technology

[0002] Due to age or illness, it may become difficult to expel or swallow phlegm, saliva, nasal mucus, or other aspirated material accumulated in the throat through coughing or swallowing. If such aspirated material enters the trachea, it can lead to breathing difficulties, suffocation, pneumonia, atelectasis, and other problems. Therefore, a suction catheter connected to a suction device is needed to suction and remove the aspirated material.

[0003] When using a suction catheter to aspirate sputum or other aspirated material, insufficient suction cannot be achieved if the tip of the suction catheter does not reach the aspirated material. Therefore, inserting the suction catheter into the lower respiratory tract may cause damage to the respiratory tract. As a related technology for sputum suction, for example, Patent Document 1 discloses a collection device that uses a mechanical insufflation-exsufflation (hereinafter referred to as MI-E) to mechanically apply positive pressure to the patient's lungs and then apply negative pressure, thereby guiding sputum from the lungs to the upper respiratory tract, where it is aspirated and collected using a suction catheter.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Publication No. 2013-524202 (paragraph 0017 of the specification) Summary of the Invention

[0007] The problem the invention aims to solve

[0008] By using a mechanical cough assist device (MI-E) for sputum suction, sputum is guided to the upper respiratory tract, thus enabling minimally invasive sputum suction that is less likely to damage the airway with the suction catheter. However, sputum suction using a mechanical cough assist device (MI-E) requires skilled technique in operating and setting the device. Therefore, it is desirable to guide suctioned material such as sputum to the upper respiratory tract more easily.

[0009] This disclosure was made in view of the aforementioned issues, and its purpose is to facilitate the easier guidance of the aspirate to the upper respiratory tract.

[0010] means for solving problems

[0011] One aspect of this disclosure is an aspirate guiding device that guides aspirate from an organism to the upper respiratory tract side, comprising: an aspirate discharge port capable of discharging the aspirate; a patient-side connection interface capable of connecting to a patient; an inhalation interface capable of connecting to an inhalation device; and a switching valve that switches the connection source of the patient-side connection interface to either the aspirate discharge port or the inhalation interface.

[0012] According to one aspect of this disclosure, the connection source of the patient-side connection interface of the suction guide device, which is connected to both the suction device and the inhalation device, can be easily switched using a switching valve. Therefore, after connecting the patient-side connection interface to the human-worn ventilation component for positive pressure ventilation, switching the connection source of the patient-side connection interface using the switching valve allows for easy vacuuming to guide the suctioned material to the upper respiratory tract using negative pressure.

[0013] Other aspects of this disclosure include an attractor system for attracting attractants from a living organism, comprising: an attraction device having an attraction tube; an attractor guiding device connected to one end of the attraction tube; and an air intake device connected to the air intake port of the attractor guiding device.

[0014] According to other embodiments of this disclosure, after connecting the patient-side interface of the suction guide tube, which is connected to both the suction device and the inhalation device, to the human-worn ventilation component and performing positive pressure ventilation, a switching valve is used to switch the connection source of the patient-side interface and connect it. This allows for easy vacuuming to guide the suctioned material to the upper respiratory tract using negative pressure.

[0015] Invention Effects

[0016] According to this disclosure, it is easier to guide the aspirate to the upper respiratory tract side. Attached Figure Description

[0017] Figure 1 This is a top view showing a schematic structure of an attractant guiding device according to one embodiment of the present disclosure.

[0018] Figure 2 (A) is a front view of the connection source switching unit of an object guiding device according to an embodiment of the present disclosure. Figure 2 (B) in the diagram is a top view of the connection source switching unit. Figure 2 (C) in the diagram is a bottom view of the connection source switching unit. Figure 2 (D) in the diagram is an explanatory diagram showing the structure of the switching valve in the connection source switching section.

[0019] Figure 3(A) is a perspective view showing the deployed state of the attractant guide tube of an attractant guide device according to an embodiment of the present disclosure. Figure 3 (B) in the middle is Figure 3 Sectional view of line AA in (A).

[0020] Figure 4 (A) and (B) are explanatory diagrams illustrating the switching action of switching the connection source of the patient-side connection interface by the switching valve of the suction guide device according to an embodiment of the present disclosure.

[0021] Figure 5 This is a schematic structural diagram of an object attraction system using an object guide device according to an embodiment of the present disclosure.

[0022] Figure 6 This is a schematic structural diagram illustrating other embodiments of an attractor system that utilizes an attractor guiding device according to one embodiment of the present disclosure.

[0023] Figure 7 This is a schematic structural diagram illustrating another embodiment of an attractor system using an attractor guiding device according to one embodiment of the present disclosure.

[0024] Figure 8 This is a perspective view of an attractant guiding device according to other embodiments of this disclosure.

[0025] Figure 9 yes Figure 7 BB line section view.

[0026] Figure 10 (A) is a perspective view of a switching valve included in an object guiding device according to another embodiment of this disclosure. Figure 10 (B) in the middle is Figure 10 The CC line section view of (A) in the diagram.

[0027] Figure 11 (A) and (B) in this diagram are operational illustrations of the object guiding device according to another embodiment of this disclosure.

[0028] Figure 12 This is a schematic structural diagram of an attractor system that uses an attractor guiding device according to other embodiments of the present disclosure.

[0029] Figure 13 This is a schematic structural diagram illustrating another embodiment of an attractor system that uses an attractor guiding device according to other embodiments of the present disclosure.

[0030] Figure 14This is a schematic structural diagram illustrating another embodiment of an attractor system that uses an attractor guiding device according to other embodiments of the present disclosure. Detailed Implementation

[0031] The preferred embodiments of this disclosure are described in detail below. Furthermore, the embodiments described below are not intended to unduly limit the content of this disclosure as stated in the claims, and not all configurations described in these embodiments are necessary for the solutions provided by this disclosure.

[0032] The terms "up," "down," "left," and "right" used in the following description are for illustrative purposes only and are not intended to limit the method or manner of use. The terms "first" and "nth" (where n is an integer) used in this specification and the claims are for distinguishing different elements and do not indicate a specific order or superiority.

[0033] The terminology used in the following description is for illustrative purposes only and is not intended to limit the scope of this disclosure. Regarding the constituent elements of an embodiment described in this specification and claims, unless explicitly stated in words as singular or plural, the plural form is intended to be included as well. The term "and / or" refers to any one or more of the associated listed elements and all conceivable combinations, and is intended to encompass the foregoing. The terms "includes," "including," "comprises," and / or "comprising" used in this specification and claims are used to identify the presence of features, actions, elements, or steps. However, this excludes the presence or addition of one or more other features, actions, elements, steps, and / or groups thereof.

[0034] (First Implementation)

[0035] First, the schematic structure of the suction guide tube according to one embodiment of the present disclosure will be described using the accompanying drawings. Figure 1 This is a top view showing a schematic structure of an attractant guiding device according to one embodiment of the present disclosure.

[0036] The aspirate guiding device 100 of this embodiment is used to guide aspirate (body fluids such as sputum) from the lower respiratory tract of a patient containing a living organism to the upper respiratory tract, whereby the aspirate is then suctioned and removed. The aspirate guiding device 100 is configured to connect to both the suction device used during aspiration and removal of the aspirate and the inspiratory device used for positive pressure ventilation performed before and after aspiration and removal of the aspirate. Figure 1As shown, the object guide device 100 includes an object guide tube 110, a connection source switching unit 105, a suction conduit 107, and a cover member 108.

[0037] The suction guide tube 110 is installed at the front end of the suction tube connected to a suction device (fixed or portable sputum suction device), and serves as a component for guiding the suctioned material to the upper respiratory tract side by means of the suction force (negative pressure) of the suction device. The suction guide tube 110 is configured such that a connecting tube 112 is provided on one side of the guide tube body 111 as a suction connection portion for connection with the suction tube. In this embodiment, the base end portion 107b of the suction catheter 107 is fitted inside the connecting tube 112, allowing connection to the suction catheter 107. The detailed structure of the suction guide tube 110 will be described later.

[0038] The connection source switching unit 105 has a switching valve 105a (see reference) that is slidably disposed within the housing 102. Figure 2 (D) in the formula switches the connection source of the patient-side connection interface 103 to either the suction discharge port 101 or the inhalation port 104. For example... Figure 1 As shown, the connection source switching unit 105 has an aspirated discharge port 101, a housing 102, a patient-side connection interface 103, an inhalation interface 104, and an operation unit 106.

[0039] The housing 102 is a cylindrical component made of resin. For example... Figure 1 As shown, a suction discharge port 101 is provided on the upper end of the housing 102, and a tubular patient-side connection interface 103 with an inner diameter of, for example, about 15 mm is provided on the lower end. The suction discharge port 101 functions as an outlet for discharging the suctioned material to the outside via the suction guide tube 110 or the suction conduit 107 connected to the suction guide tube 110. In this embodiment, the suction discharge port 101 is configured with an annular locking protrusion 101a on the upper end, which can be opened and closed using a cover 101b. The patient-side connection interface 103 functions as an interface that can transmit negative pressure from the suction device to the patient's airway by connecting to the end of a human-worn ventilation component such as an endotracheal tube or endotracheal cannula worn by the patient.

[0040] In this embodiment, such as Figure 1 As shown, the housing 102 is configured such that the suction outlet 101 and the patient-side connection interface 103 face each other. Furthermore, within the housing 102, an inhalation interface 104, capable of connecting to an inhalation device, is positioned between the suction outlet 101 and the patient-side connection interface 103. Figure 1 As shown, the intake port 104 is a tubular member that branches from the side of the housing 102 in the vertical direction.

[0041] The inhalation port 104 functions as an interface for connecting to various inhalation devices, such as manual elastic airbags or mechanical inhalation devices, when performing positive pressure ventilation on a patient. Furthermore, in this embodiment, the inhalation port 104 is a tubular member branching off from the side of the housing 102. However, the inhalation port 104 is not limited to a tubular member. That is, as an "inhalation port" provided in the housing 102, it may, for example, be configured such that a hole for fitting an inhalation device is provided on one side of the housing 102.

[0042] The operating unit 106 has a switching valve 105a (see reference) inside the housing 102. Figure 2 The (D) in the middle rotates and moves along the housing 102 to switch the connection source of the patient-side connection interface 103. That is, the switching valve 105a can switch the connection source of the patient-side connection interface 103 to either the suction discharge port 101 or the inhalation port 104 via the operation unit 106.

[0043] In this embodiment, the operating unit 106 is configured to insert a rotating key wedge 106b into the fitting hole 106a, which serves as a keyhole, to rotate the switching valve 105a. Furthermore, the key wedge 106b has the function of inserting into a tube connection portion and using the wedge principle to separate the tubes from each other. The tube connection portion is the connection portion between the patient-side connection interface 103 of the source switching unit 105 and the tube end, which is a human-worn ventilation component such as an endotracheal tube or endotracheal cannula. Moreover, the operating unit 106 only needs to be configured to rotate the switching valve 105a within the housing 102; therefore, it can also be configured to operate in a manner other than rotation via inserting the key wedge 106b into the fitting hole 106a. Details regarding the switching operation of the switching valve 105a via the operating unit 106 will be described later.

[0044] The suction conduit 107 is a tubular member made of resin or the like, used for suctioning and removing bodily fluids or other aspirated material. The front end 107a of the suction conduit 107 is open, and a slit-shaped vent 107c is provided on its side near the front end 107a. In this embodiment, the suction conduit 107 is sized such that the base end 107b can fit inside the connecting tube 112 of the aspirated material guide tube 110. Furthermore, in the suction conduit 107, the base end 107b fits inside the connecting tube 112 of the aspirated material guide tube 110, and the front end 107a is inserted from the aspirated material discharge port 101. In this way, the suction conduit 107 connects the connecting tube 112, which serves as a suction connection, to the aspirated material discharge port 101.

[0045] The diameter of the suction catheter 107 can vary and is not particularly limited. However, in order to facilitate the transfer of negative pressure from the suction device to the patient's airway via the connection source switching part 105, the suction catheter 107 preferably has a diameter of at least 5 mm. Similarly, the inner diameter of the connecting tube 112 of the suctioned material guide tube 110 connected to the suction catheter 107 is preferably 5 mm or more. When the suction catheter 107 is inserted and used after the sputum has reached the upper part of the airway, the suction catheter 107 may also be smaller than the inner diameter of the connecting tube 112. In addition, the suction catheter 107 may be at least smaller than the inner diameter of a human-worn ventilation device such as an endotracheal tube worn on the patient as the connection destination.

[0046] The cover member 108 is a flexible, cylindrical component made of a transparent resin sheet such as PMMA (acrylic acid), PET (polyethylene terephthalate), or PC (polycarbonate). In this embodiment, the cover member 108 is inserted into the connecting tube 112 of the suction guide tube 110 such that its front end 108a covers the outer periphery of the base end 107b of the suction conduit 107. Furthermore, the cover member 108 is installed by engaging the elastic base end 108b with the locking protrusion 101a of the suction outlet 101 of the connection source switching section 105. The cover member 108, by being installed between the suction guide tube 110 and the suction outlet 101, connects the suction guide tube 110 and the suction outlet 101, forming a closed channel 108c into which the guide tube 107 is inserted.

[0047] Thus, the aspirated material guiding device 100 of this embodiment is configured such that the aspirated material guiding tube 110, which is installed at the front end of the suction tube connected to the suction device, is connected to the aspirated material discharge port 101 of the connection source switching unit 105 via the suction conduit 107 and the cover member 108. Furthermore, the connection source switching unit 105 is provided with a switching valve 105a configured to switch the connection source of the patient-side connection interface 103 to either the aspirated material discharge port 101 or the inhalation interface 104.

[0048] Therefore, by switching the connection source of the patient-side connection interface 103 to the suction discharge port 101 via the connection source switching unit 105, the suctioned material can be guided to the upper respiratory tract side by the suction force (negative pressure) of the suction device, and then the suctioned material can be suctioned and removed using the suction catheter 107. On the other hand, by switching the connection source of the patient-side connection interface 103 to the inhalation interface 104 via the connection source switching unit 105, air or oxygen can be introduced into the patient's lungs for positive pressure ventilation. In addition, in this embodiment, the suction catheter 107 and the cover member 108 are configured to be detachable between the suctioned material guide tube 110 and the connection source switching unit 105. Therefore, after the suction and removal of the suctioned material and the positive pressure ventilation are completed, the suction catheter 107 and the cover member 108 can be removed, discarded, and replaced with new parts.

[0049] Next, using the accompanying drawings, a detailed structure of the connection source switching section with a switching valve in an embodiment of the object guiding device of this disclosure will be described. Figure 2 (A) is a front view of the connection source switching section of an attractant guiding device according to an embodiment of the present disclosure. Figure 2 (B) in the diagram is a top view of the connection source switching unit. Figure 2 (C) in the diagram is a bottom view of the connection source switching unit. Figure 2 (D) in the diagram is an explanatory diagram showing the structure of the switching valve included in the connection source switching section. Furthermore, Figure 2 (D) in the figure shows the state in which the operating part 106 has been removed from the housing 102.

[0050] Regarding the connection source switching unit 105 of this embodiment, the housing 102 accommodating the switching valve 105a is equipped with a suction discharge port 101, a patient-side connection interface 103, and an inhalation interface 104, all of which are integrally molded. That is, the connection source switching unit 105 is configured such that these components are integrally molded from thermoplastic resins such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), ABS resin, and acrylic resin (PMMA).

[0051] like Figure 2 (A) and Figure 2 As shown in (B), a suction discharge port 101 is provided on the upper end side of the housing 102, and the suction discharge port 101 can be opened and closed by a cover 101b connected via a connecting portion 101b1 connected to the side. On the other hand, as Figure 2 (A) and Figure 2As shown in (C), a tubular patient-side connection interface 103 is provided at the lower end of the housing 102, which can be connected to the end of a human-worn ventilation component such as an endotracheal tube or endotracheal cannula worn by a patient. On the side of the housing 102, a tubular inhalation interface 104 is configured to branch from the side of the housing 102 in the vertical direction.

[0052] like Figure 2 As shown in (D), a switching valve 105a is rotatably disposed inside the housing 102. Within the switching valve 105a, a suction vent 105b and a suction vent 105c are formed in the cylindrical valve member 105a1. In this embodiment, the switching valve 105a can slide within the housing 102 in a manner that allows it to rotate about the center portion 105a2 of the valve member 105a1.

[0053] like Figure 2 As shown in (D), in this embodiment, the switching valve 105a is configured such that a suction vent 105b extends radially through the valve member 105a1, and a suction vent 105c branches vertically from the suction vent 105b. That is, the switching valve 105a is configured such that a T-shaped vent formed by the suction vent 105b and the suction vent 105c is provided in the valve member 105a1. Furthermore, in this embodiment, the switching valve 105a is configured such that a T-shaped vent is formed within a cylindrical valve member 105a1 made of the aforementioned thermoplastic resin, etc. However, it is also possible, for example, to provide a T-shaped pipe within a cylindrical housing.

[0054] In addition, in this embodiment, such as Figure 2 As shown in (D), the switching valve 105a is provided with a disc spring 109 that spirally connects the center portion 105a2 of the valve member 105a1 to the inner side of the housing 102. The disc spring 109 applies force in a manner that enables the switching valve 105a to rotate. Thus, by providing the disc spring 109, in a neutral, normal situation where the restoring force of the disc spring 109 does not exert any effect, such as... Figure 2 As shown in (D), the suction ventilation passage 105b is oriented horizontally and can communicate with the inspiratory port 104. Meanwhile, regarding the switching valve 105a, the valve member 105a1 is disposed within the housing 102, such that the inspiratory ventilation passage 105c is oriented vertically downward and can communicate with the patient-side connection port 103. Thus, with the switching valve 105a disposed within the housing 102 via the valve member 105a1, the connection source of the patient-side connection port 103 becomes the inspiratory port 104. Furthermore, details of the subsequent switching operation of the connection source of the patient-side connection port 103 performed by the switching valve 105a are provided.

[0055] Next, the structure of the object guide tube in the object guide device of this embodiment will be described using the accompanying drawings. Figure 3 (A) in the figure is a perspective view showing the deployed state of the attractant guide tube of the attractant guide device according to an embodiment of the present disclosure. Figure 3 (B) in the middle is Figure 3 Sectional view of line AA in (A).

[0056] like Figure 3 As shown in (A), the attractant guide tube 110 of this embodiment has a guide tube body 111, a middle cover 114, a hinge mechanism 115, a front cover 116, and a connecting cord 117, all of which are integrally molded. That is, the attractant guide tube 110 is configured such that each component is integrally molded by injection molding thermoplastic resins such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), ABS resin, and acrylic resin (PMMA).

[0057] In the guide tube body 111, a connecting tube 112 is provided on one side as a suction connection portion for connecting to the suction tube. The connecting tube 112 is shaped with a tapered diameter towards the front end, and its front end is an opening 112a. The inner diameter of the opening 112a is, for example, about 5 mm. Furthermore, the shape of the connecting tube 112 can be a tapered diameter towards the front end, and is not limited to this shape. Figure 3 (A) and Figure 3 The shape shown in (B) is a stepped diameter reduction towards the front end.

[0058] Furthermore, in this embodiment, a connecting tube 112 is provided in the guide tube body 111 as a "suction connection part" connected to the suction tube. However, this suction connection part is not limited to the connecting tube 112 inserted into the inside of the suction tube. That is, as a "suction connection part" provided in the guide tube body 111, for example, a hole that allows the suction tube to be inserted and fixed can be provided on one side of the guide tube body 111.

[0059] like Figure 3 As shown in (A), a bracket 113 capable of holding a tubular member is provided at one end of the lower outer periphery of the guide tube body 111. The bracket 113 is configured such that a pair of holding portions 113a protrude from one end of the lower outer periphery of the guide tube body 111. The bracket 113 can serve as a tubular member to fix and hold, for example, the front end of a suction tube from a suction device, upwards. Figure 3 As shown in (A), the bracket 113 is configured such that the inner circumferential surface expands in diameter from the base end side toward the front end side, and the inner side is formed into a conical surface.

[0060] like Figure 3As shown in (B), an opening 111a with an inner diameter of approximately 17 mm is provided on the opposite side of the guide tube body 111 from the connecting tube 112. Its inner circumferential surface 111b is a continuous curved surface facing the base end of the connecting tube 112. A middle cover 114, which can be opened and closed relative to the opening 111a via a hinge mechanism 115, is provided on the side of the opening 111a of the guide tube body 111. The middle cover 114 has an opening 114a with an inner diameter of approximately 5 mm at its front end. This opening 114a can be opened and closed by a front cover 116, which is connected via a connecting cable 117 connected to one end of the middle cover 114.

[0061] The middle cover 114 functions as a so-called olive-shaped tube for use during nasal suction. Furthermore, after closing the opening 111a of the guide tube body 111, the middle cover 114 can be brought into close contact with the locking protrusion 101a of the suction discharge port 101 of the connection source switching unit 105 to create a vacuum. That is, the suction guide tube 110 can also be used by closing the opening 111a of the middle cover 114, creating a vacuum, and then using the suction catheter 107 to remove sputum that has risen to the upper respiratory tract. In addition, the suction guide tube 110 of this embodiment is configured to have a middle cover 114 and a front cover 130, but is not limited to this configuration. That is, the suction guide tube 110 can be adapted to the suction guide device 100 if it has at least a guide tube body 111 and a connecting tube 112 that can be connected to the suction tube of the suction device.

[0062] In this embodiment, the suction guide tube 110 is connected to the suction tube of the suction device via the connecting tube 112, and the suction force (negative pressure) from the suction device is conducted to the opening 114a side via the connecting tube 112. Therefore, by inserting the front end 107a of the suction conduit 107, which has been inserted into the connecting tube 112 of the suction guide tube 110, into the suction outlet 101 of the connection source switching unit 105, the suction force (negative pressure) from the suction device is conducted to the front end 107a of the suction conduit 107.

[0063] Thus, if the switching valve 105a of the source switching unit 105 is connected to the suction discharge port 101 and the patient-side connection interface 103, vacuuming (guidance) can be performed to move suctioned material such as sputum in the lower respiratory tract, located in the terminal bronchioles from the trachea to the lungs, to the upper respiratory tract. Then, the suctioned material such as sputum guided to the upper respiratory tract by vacuuming can be directly and continuously suctioned. Furthermore, if the suction catheter 107 and the cover member 10 are directly connected to the suction tube 12 of the suction device 10 (see reference...), Figures 5-7 If this is done, the guide tube 110 for the attracted object can be omitted.

[0064] Next, using the accompanying drawings, the switching operation of the patient-side connection interface 103 of the suction guide device according to an embodiment of the present disclosure will be described. Figure 4 (A) and Figure 4 (B) is an explanatory diagram of the switching operation of the patient-side connection interface of the switching valve of the suction guide device according to an embodiment of the present disclosure.

[0065] The aspirate guiding device 100 of this embodiment is configured such that the aspirate guiding tube 110 and the aspirate discharge port 101 of the connection source switching unit 105 are connected via the suction conduit 107 and the cover member 108. The aspirate guiding tube 110 is installed at the front end of the suction tube of the suction device. The connection source switching unit 105 has a switching valve 105a. The switching valve 105a is configured to switch the connection source of the patient-side connection interface 103 to either the aspirate discharge port 101 or the inhalation interface 104.

[0066] Therefore, when the lungs are expanded by positive pressure ventilation (hereinafter referred to as "positive pressure ventilation") performed by an inspiratory device before suctioning sputum or other aspirated material from the patient's lower respiratory tract, such as... Figure 4 As shown in (A), the switching valve 105a can orient the suction ventilation passage 105b towards the horizontal direction. When the switching valve 105a orients the suction ventilation passage 105b towards the horizontal direction, the suction ventilation passage 105b can communicate with the inhalation port 104. Simultaneously, in the switching valve 105a, the inhalation ventilation passage 105c faces downwards in the vertical direction and can communicate with the patient-side connection port 103. That is, in this embodiment, in the switching valve 105a, the valve member 105a1 is disposed within the housing 102 such that, during positive pressure ventilation, the suction ventilation passage 105b is connected to the inhalation port 104, and the inhalation ventilation passage 105c is connected to the patient-side connection port 103.

[0067] By configuring the valve member 105a1 in such a way that one end of the horizontally oriented suction ventilation passage 105b can connect to the inspiratory port 104, while the inspiratory ventilation passage 105c becomes vertically downward, connecting to the patient-side connection port 103. At this time, as... Figure 4 As shown in (A), the other end of the suction vent 105b faces the housing 102 and is closed. Meanwhile, the front end 107a of the suction conduit 107 (see reference) Figure 1 The inserted suction outlet 101 is also partially closed by the valve member 105a1, which is not equipped with a suction vent 105c.

[0068] If the suction outlet 101 is blocked by the portion of the valve member 105a1 that is not equipped with the inspiratory ventilation passage 105c, the suction force (negative pressure) from the suction device cannot be transmitted to the patient-side connection interface 103. Simultaneously, the inspiratory interface 104 is in communication with the patient-side connection interface 103. Therefore, air from the inspiratory interface 104 connected to the inspiratory device enters from one end of the suction ventilation passage 105b, passes through the inspiratory ventilation passage 105c, and is delivered to the patient-side connection interface 103. In this way, air from the inspiratory interface 104 connected to the inspiratory device can be delivered to the patient's lungs via the patient-side connection interface 103, enabling positive pressure ventilation.

[0069] On the other hand, when positive pressure ventilation has ended, suctioning is performed on the sputum or other aspirated material from the airway, such as... Figure 4 As shown in (B), the switching valve 105a is rotated clockwise until the suction ventilation passage 105b connects the suction discharge port 101 and the patient-side connection port 103. Thus, from the moment the switching valve 105a is rotated, the suction force (negative pressure) from the suction device is transmitted to the suction ventilation passage 105b. At this time, when the suction ventilation passage 105b is connected to the patient-side connection port 103 in the vertical direction, the inspiratory ventilation passage 105c is in a closed state facing the housing 102.

[0070] Subsequently, the tip 107a of the suction catheter 107 is inserted through the suction ventilation passage 105b from the suction discharge port 101 towards the patient-side connection port 103. The base 107b of the suction catheter 107 is connected to the connecting tube 112 of the suction guide tube 110. The connecting tube 112 of the suction guide tube 110 is connected to the suction tube of the suction device. Therefore, the suction force (negative pressure) from the suction device is conducted from the patient's trachea to the lungs via the tip 107a of the suction catheter 107. Thus, by means of the suction force (negative pressure) from the suction device, vacuuming (guiding) can be efficiently performed to move suctioned materials such as sputum in the lower respiratory tract towards the upper respiratory tract. Furthermore, the suctioned materials such as sputum that have moved to the upper respiratory tract side by vacuuming are efficiently suctioned and removed directly using the suction catheter 107.

[0071] After the vacuuming, suctioning, and removal of the aspirated material via the suction catheter 107 inserted into the patient-side connection interface 103 are completed, the inserted suction catheter 107 is returned to the aspirated material outlet 101, and then the rotation operation of the switching valve 105a is stopped. Thus, by stopping the rotation operation of the switching valve 105a, the suction ventilation passage 105b of the switching valve 105a returns to its original neutral state facing horizontally, thanks to the restoring force of the coil spring 109. Therefore, the aspirated material outlet 101 is closed on the inner circumferential surface of the portion of the housing 102 of the valve member 105a1 that is not equipped with the suction ventilation passage 105c, and the negative pressure from the suction device is cut off.

[0072] Thus, in this embodiment, the switching operation of the switching valve 105a performed by the operation unit 106 can easily switch the connection source of the patient-side connection interface 103 of the connection source switching unit 105 to either the suction discharge port 101 or the suction port 104. That is, negative pressure from the suction device 10 is transmitted to the patient-side connection interface 103 only when the switching valve 105a is rotated using the operation unit 106. Therefore, after easily performing vacuuming, the suctioned material can be attracted and removed.

[0073] Next, with the aid of the accompanying drawings, an object attraction system and an object guidance method according to an embodiment of the present disclosure will be described. Figure 5 This is a schematic structural diagram of an object attraction system implemented using an embodiment of the object guiding device according to an embodiment of the present disclosure. Furthermore, in Figure 5 In one embodiment of the aspirate guidance method using the aspirate suction system 1, a case is shown where sputum, as the aspirate, is guided and suctioned after being placed in a tracheostomy tube (human-worn ventilation component) on the patient.

[0074] The suction system 1 is suitable for suctioning bodily fluids, primarily sputum, from locations such as the trachea A1 or lungs (not shown) that are obstructing the airway of a living patient P1. Figure 5 As shown, the suction system 1 is configured to connect the suction guide tube 110 and the suction outlet 101 of the connection source switching section 105 having a switching valve 105a via a suction conduit 107 and a cover member 108. At this time, the connecting tube 112 of the suction guide tube 110 is connected to one end of the suction tube 12 of the suction device 10. Furthermore, in this embodiment, as... Figure 5 As shown, the object attraction system 1 is configured such that the air intake port 104 of the connection source switching unit 105 is connected to the elastic airbag 30.

[0075] The suction device 10 includes a suction pump 14, which acts as a negative pressure source, generating suction pressure within a suction tube 12 made of a flexible resin such as polyurethane, and a receiving portion 16 for receiving the object being suctioned from the suction tube 12. The suction device 10 has the function of attracting the object. Furthermore, when using a portable suction device as the suction device 10, the object guide tube 110 of this embodiment can be directly connected to the portable suction device. Therefore, in this case, the suction tube 12 can be omitted. Additionally, in the object suction system 1 of this embodiment, the object guide tube 110 is installed at one end of the suction tube 12, and the object guide tube 110 may also be configured to be integral with the suction tube 12.

[0076] The elastic airbag 30 is a bag-shaped component, such as an ellipsoid, made of an elastomer like silicone resin, and functions as a suction device for manual ventilation. One end of the elastic airbag 30 has an outlet 30a for expelling air from the airbag 30 to the outside, and the other end has an external gas inlet 30b that introduces external gas in one direction towards the inside, with an anti-backflow function. By manually compressing and restoring this elastic airbag 30, positive pressure ventilation can be achieved.

[0077] Furthermore, regarding the suction system 1 of this embodiment, the inhalation device connected to the inhalation port 104 is not limited to an elastic cuff 30 such as a bag valve mask for manually assisted ventilation. For example, a non-elastic cuff such as a Jackson-Rees breathing circuit can also be used as the inhalation device. In addition, mechanical inhalation devices such as invasive positive pressure ventilators for endotracheal intubation or non-invasive mask ventilators such as NPPV (Noninvasive Positive Pressure Ventilation) can also be used as the inhalation device.

[0078] In this embodiment, for example, such as Figure 5 As shown, the patient-side connection interface 103 of the connection source switching unit 105 is connected to the tracheostomy tube 20, which is inserted into the incision A2 formed on the pharynx of patient P1 and fixed by the fixation plate 22 and the cuff 24. At this time, regarding the suction guide tube 110, the suction tube 12 of the suction device 10 is connected to the connecting tube 112, and the suction catheter 107 and the cover member 108 are connected to the opening side. On the other hand, the elastic cuff 30 is connected to the inhalation interface 104 of the connection source switching unit 105. Moreover, the patient-side connection interface 103 of the connection source switching unit 105 is connected to one end 20a of the tracheostomy tube 20. Thereafter, firstly, positive pressure ventilation is initiated using the elastic cuff 30 with the aim of improving the oxygenation of the patient's lungs and atelectasis.

[0079] If positive pressure ventilation ends, the switching valve 105a is rotated by the operation unit 106 to switch the connection source of the patient-side connection interface 103 from the inspiratory interface 104 to the suction outlet 101 of the connection source switching unit 105. Then, the suction catheter 107 of the suction guide tube 110, which is attached to the connecting tube 112, is inserted from the suction outlet 101, and suction operation by the suction device 10 begins. When this suction operation begins, the suction force (negative pressure) from the suction device 10 is transmitted to the tracheostomy tube 20 via the suction guide tube 110 and the suction catheter 107. When the negative pressure from the suction device 10 is transmitted to the tracheostomy tube 20, vacuuming (guiding) can be performed to move suctioned material such as sputum in the lower respiratory tract toward the upper respiratory tract.

[0080] That is, in this embodiment, the aspirated object suction system 1 and the aspirated object guiding method are as follows: the patient-side connection interface 103 of the connection source switching unit 105 is connected to one end 20a of the tracheostomy tube 20. The connection source switching unit 105 connects the inhalation interface 104 to the elastic cuff 30. In this way, by connecting the patient-side connection interface 103 to one end 20a of the tracheostomy tube 20, positive pressure ventilation can be performed on the lungs of the patient P1 by means of positive pressure from the elastic cuff 30. Then, when positive pressure ventilation ends, the switching valve 105a is rotated by the operation unit 106 to switch the connection source of the patient-side connection interface 103 from the inhalation interface 104 to the aspirated object discharge outlet 101.

[0081] If the switching valve 105a is switched using the operating unit 106 to change the connection source of the patient-side connection interface 103, the suction ventilation passage 105b of the switching valve 105a is oriented vertically, connecting the suction discharge port 101 to the patient-side connection interface 103. At this time, the suction guide tube 110 is connected to the suction tube 12. Furthermore, the suction guide tube 110 is connected to the suction discharge port 101 of the connection source switching unit 105 via the suction conduit 107 and the cover member 108. Moreover, the connection source switching unit 105 connects the patient-side connection interface 103 to one end 20a of the tracheostomy tube 20. Therefore, by means of suction force (negative pressure) from the suction device 10, suctioned material such as sputum is guided towards the upper respiratory tract via the tracheostomy tube 20. Thereafter, the suction conduit 107 is used to suction the suctioned material such as sputum in the trachea A1 guided towards the upper respiratory tract.

[0082] If the suctioning of sputum or other suctioned material in the trachea A1 is completed, the suction catheter 107 is removed from the suctioned material discharge port 101. Then, to restore the direction of the suction ventilation path 105b from the vertical direction to the horizontal direction, the rotation operation of the switching valve 105a by the operating unit 106 is stopped. If the rotation operation of the switching valve 105a is stopped, the switching valve 105a is activated by the coil spring 109 (see reference). Figure 2 The restoring force of (D) in the middle restores it to a neutral state in which the suction ventilation path 105b faces the horizontal direction.

[0083] Therefore, the connection source of the patient-side connection interface 103 is switched from the suction outlet 101, where the suction catheter 107 is inserted, to the inhalation interface 104 connected to the elastic cuff 30. In this way, positive pressure ventilation from the elastic cuff 30 is performed again, restoring the lungs to a normal state with air present. Thus, in the suction system 1 of this embodiment, the switching operation between suction treatment performed under negative pressure and positive pressure ventilation can be easily performed by switching the switching valve 105a of the connection source switching unit 105.

[0084] In the suction system 1 and suction method of this embodiment, the suction guide device 100 first performs a vacuum to move the suction material, such as sputum, in the lower respiratory tract from the trachea A1 to the terminal bronchioles toward the upper respiratory tract. Then, after vacuuming, the suction catheter 107 is used to suction the suction material that has moved toward the upper respiratory tract into the trachea A1. That is, in order to facilitate the suction of the suction material, such as sputum, in the lower respiratory tract using a suction device such as the suction catheter 107, the suction guide device 100 of the suction system 1 of this embodiment guides the portion of the suction material toward the upper respiratory tract of the trachea A1.

[0085] Furthermore, the aspirate suction system 1 aspirates and removes the aspirate guided by the aspirate guide device 100 to the upper respiratory tract side. Additionally, the aspirate suction system 1 of this embodiment is used to switch between positive pressure ventilation and vacuuming by switching the switching valve 105a of the source switching unit 105. That is, the aspirate suction system 1 is easily switched to positive pressure ventilation when the patient-side connection interface 103 is connected to one end 20a of the tracheostomy tube 20.

[0086] Next, a sputum aspiration method applicable to the aspirate guidance method of this embodiment will be described using the aspirate aspiration system 1. When aspirating sputum or other aspirate from the lower respiratory tract of patient P1, firstly, the lungs of patient P1 are auscultated with a stethoscope. Then, positive pressure ventilation is performed for 5 seconds at a positive pressure of 40 cmH2O using an inhalation device such as an elastic air bag to inflate the lungs. At this time, if atelectasis occurs at the extremities where the aspirate has accumulated, even with vacuuming, there is no air in the extremities, making it difficult to push the aspirate towards the upper respiratory tract. Therefore, when using the aspirate aspiration system 1 for sputum aspiration, positive pressure ventilation is performed before the aspiration process.

[0087] Furthermore, when sputum suction is required, patient P1's respiratory status often deteriorates, and blood oxygen saturation is frequently low. Therefore, during sputum suction, patient P1 may experience difficulty breathing and hypooxidation. In this embodiment, when performing the aforementioned positive pressure ventilation before suction, oxygen is mixed into the positive pressure ventilation to stabilize the patient's condition before starting the suction procedure. Alternatively, to stabilize patient P1's condition quickly, a high concentration of oxygen can be mixed into the positive pressure ventilation; however, if a short duration is not required, ordinary air containing oxygen can also be used for positive pressure ventilation. Additionally, a pressurized ventilation device (inhalation device) such as an elastic airbag can be included as a component of the suction system 1 of this embodiment.

[0088] Subsequently, a vacuum is applied for 5 seconds at a negative pressure of 60 cmH2O (i.e., -60 cmH2O) to cause the lungs to contract and guide the suctioned material, such as sputum, to the upper respiratory tract. Then, the suctioned material, such as sputum, is suctioned from the upper respiratory tract using a suction catheter or other suction device. If the lungs are compressed by the vacuum, atelectasis may occur. Therefore, positive pressure ventilation is applied again for 5 seconds at a positive pressure of 40 cmH2O, thereby restoring the lungs to their normal state with air present. Thus, according to the suction system 1 of this embodiment, positive pressure ventilation must be performed before and after the suction procedure performed by causing the lungs to contract under negative pressure.

[0089] In the suction method of the suction system 1 of this embodiment, after auscultation of patient P1, a cycle of positive pressure ventilation, vacuuming under negative pressure, suctioning of the suctioned material guided to the upper respiratory tract, and then positive pressure ventilation is repeated until patient P1's symptoms improve. Thus, in the suction system 1 of this embodiment, after the suction catheter 107 is installed in the suction guide tube 110 connected to the front end of the suction tube 12 of the suction device 10, a vacuuming operation is performed to guide the suctioned material in the lower respiratory tract toward the upper respiratory tract. Moreover, in the suction system 1 of this embodiment, by using the suction catheter 107 (suction device) to suction the suctioned material guided to the upper respiratory tract, easy and minimally invasive sputum suction is achieved.

[0090] Furthermore, in this embodiment, by performing positive pressure ventilation before and after the sputum suction operation, a less invasive sputum suction method that further reduces the pain of patient P1 is achieved. In particular, in this embodiment, when performing positive pressure ventilation before and after a vacuum suction operation under negative pressure, the switching valve 105a is rotated while the patient-side connection port 103 of the connection source switching unit 105 is connected to one end 20a of the tracheostomy tube 20. Thus, by rotating the switching valve 105a using the operating unit 106, the switching operation between vacuum suction under negative pressure and positive pressure ventilation can be easily performed. Therefore, the invasion of foreign objects such as viruses or bacteria from the outside can be suppressed during this switching operation, enabling more hygienic closed-loop sputum suction.

[0091] Furthermore, in this embodiment, in the suction system 1, the patient-side connection interface 103 of the connection source switching unit 105 is connected to the tracheostomy tube 20 worn in the throat of the patient P1, and a vacuum is drawn. Then, the suction catheter 107 is used to aspirate the suctioned material guided to the upper respiratory tract. The suction system 1 of this embodiment can also be applied to other methods. That is, even without the insertion of a human-worn ventilation component such as the tracheostomy tube 20, the suction system 1 of this embodiment can be configured as follows: Figure 6 As shown.

[0092] As another embodiment of the object guiding device 100, the object attraction system 1, and the object guiding method of the object attraction system 1, Figure 6 An example of an inhalation mask 40 suitable for covering the mouth of patient P1 is shown. In this embodiment, the patient-side connection interface 103 of the connection source switching unit 105 is connected to a branch port 44 branching from the connection member 42, which is mounted on the end of the inhalation mask 40. The connection source switching unit 105 connects the elastic airbag 30 to the inhalation interface 104. Furthermore, the suction guide tube 110, mounted on the suction tube 12 of the suction device 10, is connected to the suction discharge port 101 of the connection source switching unit 105 via the suction conduit 107 and the cover member 108 to guide the suctioned material. In addition, the inhalation mask 40 can utilize a mask such as an oronasal mask.

[0093] In this embodiment, by connecting the patient-side connection interface 103 of the connection source switching unit 105 to the branch port 44 of the connection member 42 of the inspiratory mask 40, negative pressure from the suction device 10 is transmitted to the inspiratory mask 40. Then, through the negative pressure transmitted from the suction device 10 to the inspiratory mask 40, the aspirated material such as sputum in the lower respiratory tract from the trachea A1 to the terminal bronchioles is guided to the upper respiratory tract side. In this way, by vacuuming the aspirated material, it can be guided to the oral cavity in the upper respiratory tract. Therefore, the aspirated material guided to the oral cavity in the upper respiratory tract can be easily aspirated using a suction device such as the suction catheter 107. In addition, in this embodiment, by vacuuming via the inspiratory mask 40, aspirated material not only in the oral cavity but also in the nasal cavity can be guided and suctioned toward the inspiratory mask 40.

[0094] Furthermore, as other embodiments of the object guiding device 100, the object attraction system 1, and the object guiding method using the object attraction system 1, the object attraction system 1 in this embodiment may also be configured as follows: Figure 7 As shown. That is, as Figure 7 As shown, in the postoperative ICU (Intensive Care Unit) and other similar settings, when suctioning and removing sputum and other aspirated materials from a patient P1 under mechanical ventilation whose endotracheal tube 50 has been inserted into the trachea A1 through the mouth of the patient P1, the aspirated material suction system 1 of this embodiment is applicable.

[0095] Specifically, an endotracheal tube 50 is inserted into the trachea A1, and the distal end of the endotracheal tube 50 is secured using a cuff 52. Then, the patient-side connection interface 103 of the connection source switching section 105 of the aspirate guiding device 100 is connected to the joint portion 50a at the base of the endotracheal tube 50. By connecting the patient-side connection interface 103 to the joint portion 50a, negative pressure from the suction device 10 is conducted, creating a vacuum to guide aspirated material such as sputum towards the upper respiratory tract. Then, the aspirated material guided to the upper respiratory tract is aspirated using the suction catheter 107, thereby removing the aspirated material.

[0096] In this way, by connecting the patient-side connection interface 103 of the connection source switching unit 105 to the joint portion 50a of the endotracheal tube 50, negative pressure from the suction device 10 is conducted, and the aspirated material such as sputum in the lower respiratory tract can be guided to the upper respiratory tract side. Therefore, the aspirated material guided to the upper respiratory tract side can be easily and directly aspirated using the suction catheter 107. In addition, in this embodiment, when positive pressure ventilation is performed before and after the suction operation, the operation unit 106 rotates the switching valve 105a while the patient-side connection interface 103 of the connection source switching unit 105 is connected to the joint portion 50a of the endotracheal tube 50. By rotating the switching valve 105a in this way, the switching operation between vacuum and positive pressure ventilation can be easily performed, thus suppressing the invasion of foreign objects such as viruses or bacteria from the outside, and achieving more hygienic closed-loop sputum suction.

[0097] Next, the function and effects of the object guiding device 100 and the object attraction system 1 according to one embodiment of the present disclosure will be explained.

[0098] The aspirated object guiding device 100 of this embodiment is configured to connect to both the suction device 10 and the suction device (elastic airbag 30), and the connection source of the patient-side connection interface 103 of the connection source switching unit 105 can be easily switched using the operation section 106 of the switching valve 105a. Furthermore, the aspirated object guiding tube 110, which is connected to the suction tube 12 of the suction device 10, and the connection source switching unit 105, which is connected to the human-wearable ventilation member, are connected via the cover member 108. Therefore, after connecting the patient-side connection interface 103 of the connection source switching unit 105 to the human-wearable ventilation member, the connection source of the patient-side connection interface 103 can be switched using the switching valve 105a, thereby easily and immediately switching between positive pressure ventilation and vacuum. This suppresses the invasion of foreign objects such as viruses or bacteria from the outside, enabling more hygienic, closed-loop, low-invasive aspiration of the aspirated object.

[0099] That is, the patient-side connection interface 103 of the connection source switching unit 105, which connects to both the suction device 10 and the elastic airbag 30, is connected to the human-worn ventilation component worn by the patient P1. Then, the switching valve 105a is rotated using the operation unit 106. By rotating the switching valve 105a, the connection source of the patient-side connection interface 103 is switched from the suction port 104 to the suction discharge port 101. Furthermore, the human-worn ventilation component mentioned herein can include the endotracheal tube 50, the endotracheal cannula 20, and the inhalation mask 40.

[0100] With the connection source of the patient-side connection interface 103 switched to the suction discharge outlet 101, the suction catheter 107 installed in the suction guide tube 110 is inserted. The suction guide tube 110 is connected to the suction tube 12 of the suction device 10. Then, by communicating with the human-worn ventilation component in this state, suction is performed directly using the suction catheter 107 after the suctioned material is guided to the upper respiratory tract side. Therefore, the suctioned material can be guided to the upper respiratory tract side with a simple technique, enabling continuous, minimally invasive, and easy suction (expulsion) of the suctioned material guided to the upper respiratory tract side.

[0101] Additionally, vacuuming using the suction device 10 can be achieved by tightly connecting the suction tube 12 to a human-worn ventilation component such as the endotracheal tube 50 or endotracheal cannula 20. However, when the suction tube 12 is cut open with scissors, its cross-section is irregular and its diameter varies. Therefore, it is difficult to ensure a tight fit between the suction tube 12 and the human-worn ventilation component such as the endotracheal tube 50 or endotracheal cannula 20, resulting in variations in vacuuming effectiveness depending on the operator's skill. Furthermore, direct contact between the suction tube 12 and the patient or bodily fluids for suction is an unauthorized use of the suction tube 12 and is therefore not permitted in medical practice.

[0102] Therefore, in this embodiment, by inserting and connecting the connecting tube 112 into the suction tube 12, a tight fit between the suction tube 12 and the connecting tube 112 is ensured, and the suction guide tube 110 and the connection source switching part 105 are connected via the cover member 108. Furthermore, the patient-side connection interface 103 of the connection source switching part 105 is connected to a wearable ventilation component such as the endotracheal cannula 20 or endotracheal tube 50. Therefore, according to this embodiment, even a less skilled operator can easily ensure a tight fit between the components. Thus, a more reliable vacuuming effect can be achieved, and anyone can perform the same vacuuming.

[0103] In general, when inserting a suction catheter connected to a suction tube into the airway for sputum suction, insufficient suction cannot be achieved if the tip of the suction catheter cannot reach the sputum to be suctioned. Furthermore, blindly inserting the suction catheter may cause airway irritation and damage to the patient due to excessive insertion. On the other hand, mechanical cough assist (MI-E) can achieve minimally invasive sputum clearance in a short time. However, the setup and operation of MI-E devices are complex, requiring skilled personnel for sputum clearance, and the devices themselves are expensive.

[0104] In contrast, in the suction guide device 100 of this embodiment, the suction guide tube 110, which is installed at the front end of the suction tube 12, is connected to the suction outlet 101 of the connection source switching unit 105 via the suction conduit 107 and the cover member 108. Furthermore, the connection source switching unit 105 is connected to a human-worn ventilation component such as a tracheostomy tube 20 or endotracheal tube 50 worn on the patient's P1 side.

[0105] Thus, in this embodiment, if the suction guide tube 110 is used as a connecting accessory, the tightness of the suction guide tube 110 and the suction tube 12 can be ensured. Furthermore, in this embodiment, the connection source switching part 105, which is connected to the suction guide tube 110, is connected to a human-wearable ventilation component via the cover member 108. Therefore, the suction force (negative pressure) from the suction device 10 will not leak from the position where the suction tube 12 and the suction guide tube 110 are in close contact, and will be conducted to the human-wearable ventilation component such as the tracheostomy tube 20 or endotracheal tube 50 via the cover member 108, the suction guide tube 107, and the connection source switching part 105.

[0106] Furthermore, the suction guide device 100 of this embodiment includes a connection source switching unit 105, which is equipped with a switching valve 105a for switching the connection source of the patient-side connection interface 103. Thus, by including the connection source switching unit 105, the circuit is switched only during suction operations, and automatically reverts to the artificial respiration circuit after the suction operation ends. Therefore, the breathing circuit does not need to be disconnected during each suction operation, reducing the risk of death due to forgetting to connect the ventilator after the suction operation, and enabling safer suction operations. Additionally, the suction guide tube 110 can be tightly pressed against the locking protrusion 101a of the suction outlet 101 of the connection source switching unit 105 for vacuuming. Therefore, by connecting the suction catheter 107, the cover member 108, and the suction outlet 101 of the connection source switching unit 105, a closed vacuum system can be easily upgraded.

[0107] Furthermore, in this embodiment, after connecting the connecting tube 112 of the suction guide tube 110 to one end of the suction tube 12, the patient-side connection interface 103 of the connection source switching unit 105 is connected to a human-worn ventilation component such as a tracheostomy tube 20 or endotracheal tube 50 worn on the patient P1 side. Then, with the connection to the human-worn ventilation component, the operation unit 106 of the switching valve 105a is rotated to switch the connection source of the patient-side connection interface 103 to the suction outlet 101. The suction catheter 107, which is installed on the suction guide tube 110 connected to the suction tube 12 of the suction device 10, is inserted into the suction outlet 101. As a result, by creating a vacuum through the patient-side connection interface 103, suctioned material such as sputum in the lower respiratory tract of the patient P1 can be moved to the upper respiratory tract side. Therefore, the suctioned material moved to the upper respiratory tract side can be easily suctioned and removed directly using the suction catheter 107 connected to the suction guide tube 110.

[0108] In particular, in this embodiment, the suction guide tube 110 is connected to the suction tube 12 of the suction device 10, and the connection source switching unit 105 has a switching valve 105a for switching the connection source of the patient-side connection interface 103. Furthermore, the suction catheter 107 and the suction discharge port 101 of the connection source switching unit 105 are connected to the suction guide tube 110 via the suction catheter 107 and the cover member 108. Therefore, negative pressure from the suction device 10 is transmitted to the suction catheter 107 mounted on the connection tube 112 of the suction guide tube 110.

[0109] Subsequently, after switching the aspirate discharge port 101 to the patient-side connection port 103 using the switching valve 105a, the suction catheter 107 is inserted. Then, by applying negative pressure from the tip 107a of the suction catheter 107 to create a vacuum, the aspirate guided to the upper respiratory tract can be easily and directly suctioned and removed using the suction catheter 107. Furthermore, once the aspirate removal is complete, after pulling the suction catheter 107 back to the aspirate discharge port 101, the rotation of the switching valve 105a by the operating unit 106 is stopped. Thus, by stopping the rotation of the switching valve 105a, it returns to its original neutral state, and the suction operation can be easily stopped.

[0110] Therefore, after vacuuming the lower respiratory tract of patient P1 to guide sputum and other aspirated material to the upper respiratory tract, the cover member 108 can prevent the invasion of foreign objects such as viruses or bacteria from the outside during the suction removal of the aspirated material already guided to the upper respiratory tract. This allows for a more closed and hygienic suction removal operation. Furthermore, in this embodiment, the suction catheter 107 and cover member 108 connecting the aspirated material guide tube 110 to the connection source switching unit 105 can be easily detached. Therefore, a closed and hygienic suction removal operation of sputum and other aspirated materials can be performed more easily.

[0111] Furthermore, in this embodiment, as described above, positive pressure ventilation is performed using an inspiratory device such as the elastic cuff 30 before the vacuuming operation under negative pressure and after the suction operation of the aspirate guided to the upper respiratory tract. By performing such positive pressure ventilation, the aspiration and removal of aspirate such as sputum can be easily performed with minimal invasiveness. In particular, in this embodiment, the connection source of the patient-side connection interface 103 of the aspirate guide device 100, which is connected to both the suction device 10 and the inspiratory device, can be easily switched using the operating part 106 of the switching valve 105a. Therefore, the invasion of foreign objects such as viruses or bacteria from the outside can be suppressed, and closed-loop sputum suction can be achieved more hygienically.

[0112] Thus, in the suction guide device 100 of this embodiment, the suction guide tube 110 is used as an accessory installed at the front end of the suction tube 12. In addition, in the suction guide device 100 of this embodiment, the connection source switching part 105 with the switching valve 105a is used as an accessory that connects to the human body ventilation member installed on the patient P1 side via the patient-side connection interface 103.

[0113] In this embodiment, by using the suction guide tube 110 and the connection source switching unit 105, the suctioned material can be easily guided to the upper respiratory tract side. Therefore, it is easier to aspirate the suctioned material guided to the upper respiratory tract side, thus improving suction efficiency. In particular, in the method of blindly inserting the suction catheter deep into the patient P1's airway during sputum suction, which induces coughing, not only does the patient P1 experience pain, but there is also a risk of serious complications such as cerebrovascular disorders due to airway damage or increased blood pressure. However, in the suction guide device 100 of this embodiment, the risk of such pain or complications can be suppressed.

[0114] Furthermore, in this embodiment, since expensive mechanical cough assist (MI-E) devices are not used, efficient sputum suction can be performed. Therefore, patient P1's discomfort can be reduced at a lower cost, and minimally invasive suction of sputum and other aspirated materials can be achieved, improving patient P1's QOL (Quality of Life). Moreover, in this embodiment, the aspirate guide tube 110 and the connection source switching unit 105 of the aspirate guide device 100 have a simple structure. Therefore, compared to mechanical cough assist devices (e.g., MI-E) or sputum suction methods using devices (e.g., tracheoscopic endoscopy, impact ventilator), the aspirate guide device 100 can be mass-produced at a lower cost, and preparation and cleanup time can be reduced.

[0115] Furthermore, in this embodiment, compared to postural drainage, compression (manual respiratory assistance), and other sputum suction methods, the suctioned material can be reliably guided in a shorter time. In particular, in the case of long-term bedridden patients, postural drainage or compression carries the risk of fracture due to changes in position or localized manual pressure. However, with the vacuum method of this embodiment, the suctioned material can be effectively aspirated regardless of the patient's position, thus reducing the risk of fracture due to changes in position or localized manual pressure.

[0116] (Second Implementation)

[0117] Next, using the accompanying drawings, a schematic structure of an attractant guiding device with respect to other embodiments of the present disclosure will be described. Figure 8 This is a perspective view of an attractant guiding device according to other embodiments of this disclosure. Figure 9 yes Figure 8 BB line section view. Figure 10 (A) in this diagram is a perspective view of a sliding portion, which serves as a switching valve, in an object guiding device according to another embodiment of this disclosure. Figure 10 (B) in the middle is Figure 10 The CC line section view of (A) in the diagram.

[0118] The aspirate guiding device 200 of this embodiment is a component connected to both the suction device and the inspiratory device. The suction device is used to aspirate and remove aspirate, such as sputum and other bodily fluids, from the respiratory tract, which includes the patient's lower respiratory tract. The inspiratory device is used for positive pressure ventilation performed before and after aspirate removal. Specifically, the aspirate guiding device 200 is installed at the front end of the suction tube connected to the suction device of a fixed or portable sputum suction device, thereby serving as a component that guides the aspirate to the upper respiratory tract side using the suction force (negative pressure) of the suction device. Furthermore, the aspirate guiding device 200 is installed at the connection interface of a manual or mechanical inspiratory device, thereby serving as a component for introducing air or oxygen into the patient's lungs during positive pressure ventilation performed before and after aspirate removal.

[0119] like Figure 8 as well as Figure 9 As shown, the suction guide device 200 has a connecting part (connecting tube) 201, a housing 202, a patient-side connecting interface 203, an inhalation interface 204, a sliding part 205, and an operating part 206.

[0120] The housing 202 is a tubular component made of resin, such as... Figure 8 As shown, a sealing section 202a is provided on the upper side, and an operating section 206 is installed on the sealing section 202a. A tubular patient-side connection interface 203 with an inner diameter of, for example, about 15 mm is provided on the lower side. The patient-side connection interface 203 connects to the end of a human-worn ventilation component such as an endotracheal tube or endotracheal cannula worn on the patient, and functions as an interface for transmitting negative pressure from the suction device to the patient's airway. Additionally, as... Figure 9 As shown, the housing 202 has an inner protrusion 202b configured such that the wall thickness of the lower end side having the patient-side connection interface 203 is thicker than that of the upper end side. The inner protrusion 202b restricts the lower end of the sliding range of the sliding part 205, which serves as a switching valve.

[0121] On the side of the housing 202, there is a connecting pipe 201 serving as a connection portion for connecting to the suction pipe of the suction device, and a suction port 204 for connecting to the connection interface of the suction device. In this embodiment, as... Figure 8 As shown, in the height direction of the housing 202, the air intake 204 is disposed below the connecting pipe 201 in the side of the housing 202. Furthermore, the arrangement of the connecting pipe 201 and the air intake 204 disposed in the side of the housing 202 is not limited to... Figure 8 As shown. That is, regarding the configuration of the side of the housing 202 in the height direction or rotation direction, it is only necessary that the "first position" and the "second position" are different from each other.

[0122] The connecting tube 201 has a tapered shape towards the front end. Regarding the connecting tube 201, its front end is an opening 201a, and its base end is a connection port between the suction tube and the housing 202, which functions as a discharge outlet for the suctioned material 201b. The inner diameter of the opening 201a is, for example, approximately 5 mm. Furthermore, the shape of the connecting tube 201 is only required to be tapered towards the front end and is not limited to any particular shape. Figure 8 The shape shows a stepped reduction in diameter towards the front end. Furthermore, in this embodiment, a connecting tube 201 is provided on the side of the housing 202 as a "connecting part" for connecting to the suction tube. However, this connecting part is not limited to the connecting tube 201 inserted into the inner side of the suction tube. That is, as a "connecting part" provided in the housing 202, it can also be configured such that a hole is provided on the side of the housing 202 for inserting and fixing the suction tube.

[0123] like Figure 8 as well as Figure 9 As shown, the inhalation port 204 is a tubular member that branches off from the side of the housing 202 in the vertical direction. When performing positive pressure ventilation on a patient using a manual elastic airbag or a mechanical inhalation device, the inhalation port 204 functions as an interface for connecting to the inhalation device. Furthermore, in this embodiment, the inhalation port 204 connected to the inhalation device is a tubular member that branches off from the side of the housing 202, but the form of the inhalation port 204 is not limited to a tubular member. That is, as an "inhalation port" provided in the housing 202, for example, it may be configured such that a hole for the inhalation port of the inhalation device is provided on one side of the housing 202 for fitting.

[0124] In this embodiment, the object guiding device 200 is configured such that the housing 202, connecting tube 201, and suction port 204 are integrally molded from thermoplastic resin. Examples of thermoplastic resins that can be used to construct the object guiding device 200 include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), ABS resin, and acrylic resin (PMMA). Alternatively, the object guiding device 200 can be configured such that after separately constructing the housing 202, connecting tube 201, and suction port 204, the connecting tube 201 and suction port 204 are respectively bonded to the side of the housing 202.

[0125] like Figure 9 As shown, a sliding portion 205 is provided on the inner side of the housing 202, along the inner circumferential surface of the housing 202. For example... Figure 10 (A) and Figure 10As shown in (B), the sliding part 205 has an opening at its lower end and is a generally cylindrical resin component with a mesh-like structure and multiple vents 205a on its upper surface. A fitting hole 205c is provided at the center of the upper surface of the sliding part 205, into which the shaft portion 206b of the operating part 206 can fit. The sliding part 205 slides within the housing 202 and functions as a switching valve, closing either the suction tube connection port 201b or the suction port 204 from the inside of the housing 202 via the side surface 205b of the sliding part 205.

[0126] The operation unit 206 has the function of switching the connection source of the patient-side connection interface 203 by moving the sliding part 205 along the housing 202. In this embodiment, the operation unit 206 switches the connection source of the patient-side connection interface 203 from the inhalation interface 204 to the suction tube connection port 201b by moving the sliding part 205 from top to bottom along the housing 202. That is, before moving the sliding part 205 using the operation unit 206, the suction tube connection port 201b of the connecting tube 201 is closed by the side 205b of the sliding part 205, so that the patient-side connection interface 203 and the inhalation interface 204 are in a state where air can pass through. After moving the sliding part 205 downward using the operation unit 206, the inhalation interface 204 is closed by the side 205b of the sliding part 205. Then, the connection between the patient-side connection interface 203 and the suction tube connection port 201b is switched to a state where air can pass through the air vent 205a of the sliding part 205.

[0127] Furthermore, the configuration of the connecting pipe 201 and the air intake port 204 located on the side of the housing 202 is not... Figure 8 In the case described above, that is, when the "first position" and "second position" are different in terms of the arrangement of the side of the housing 202 in the height direction or rotation direction, the sliding operation of the sliding part 205 performed by the operating unit 206 also changes. For example, when the arrangement of the connecting pipe 201 and the suction port 204 in the height direction is reversed, the operating unit 206 can move the sliding part 205 downward along the housing 202, thereby switching the closure performed by the side 205b of the sliding part 205 from the suction port 204 to the connecting pipe 201. In addition, when the arrangement of the connecting pipe 201 and the suction port 204 is different in the rotation direction of the side of the housing 202, the sliding part 205 can be rotated along the side of the housing 202, so that when the side 205b of the sliding part 205 closes either the suction pipe connection port 201b of the connecting pipe 201 or the suction port 204, the other side is not closed.

[0128] In this embodiment, the operating unit 206 is configured such that by moving the sliding part 205 along the housing 202, the connection source of the patient-side connection interface 203 is switched to either the suction tube connection port 201b of the connection tube 201 or the inhalation interface 204. Specifically, as Figure 9 As shown, the operation unit 206 has a pressing part 206a that can be pressed from the outside, a shaft part 206b that connects the pressing part 206a to the sliding part 205, and an elastic member 206c disposed between the pressing part 206a and the closing part 202a.

[0129] like Figure 8 As shown, the pressing part 206a is, for example, a flange-shaped plate-like member made of resin, such as a circle, with an opening 206a1 at its center. The opening 206a1 can communicate with a through hole 206b1 formed along the axial direction of the shaft part 206b. Furthermore, the pressing part 206a is provided with a cover member 206a2 that covers the opening 206a1, and a connecting cable 206a3 that connects the cover member 206a2 to the pressing part 206a. The opening 206a1 can be opened and closed via the cover member 206a2.

[0130] The shaft portion 206b is a resinous tubular member with a through hole 206b1 provided along the axial direction. Therefore, after opening the cover member 206a2 of the pressing portion 206a, a suction device such as a suction tube can be inserted through the through hole 206b1 through the opening 206a1. In addition, the shaft portion 206b connects the pressing portion 206a and the sliding portion 205 by fitting into the fitting hole 205c formed on the upper surface side of the sliding portion 205. Moreover, the shaft portion 206b is configured to slide relative to the opening 202a1 of the sealing portion 202a that blocks the upper end side of the housing 202. Therefore, by the movement accompanying pressing the pressing portion 206a, the sliding portion 205, which is connected to the pressing portion 206a via the shaft portion 206b, can move along the housing 202. In addition, regarding the area around the shaft portion 206b, in order to prevent dirt caused by the adhesion of phlegm, it is preferable to cover it with a resin sheet or the like.

[0131] like Figure 8 as well as Figure 9As shown, the elastic member 206c is wound around the shaft portion 206b and disposed between the pressing portion 206a and the closing portion 202a. In this embodiment, the elastic member 206c is configured as a helical spring consisting of a compression spring having a restoring force relative to the pressing direction of the pressing portion 206a. Furthermore, while the elastic member 206c is configured as a helical spring in this embodiment, it can be any other configuration as long as it has a restoring force relative to the pressing direction of the pressing portion 206a. For example, as the elastic member, a tension spring can be wound around the shaft portion between the closing portion 202a and the sliding portion 205, having a restoring force relative to the pressing direction of the pressing portion 206a.

[0132] Next, the operation of the aspirated object guide tube according to other embodiments of the present disclosure will be described using the accompanying drawings. Figure 11 (A) and Figure 11 (B) is an illustration of the operation of the attractant guide tube according to another embodiment of this disclosure.

[0133] In the suction guide device 200 of this embodiment, a patient-side connection interface 203 is provided on the lower end side of the housing 202. A connecting tube 201, which connects to the suction tube of the suction device, and an air inlet 204, which connects to the air inlet device, are branched onto the side of the housing 202. Furthermore, by sliding the sliding part 205 through the operating part 206, the connection source of the patient-side connection interface 203 can be switched to either the suction tube connection port 201b of the connecting tube 201 or the air inlet 204.

[0134] For example, when positive pressure ventilation of the inspiratory device is performed to inflate the lungs before suctioning sputum or other aspirated material from the patient's lower respiratory tract, the patient-side connection port 203 and the inspiratory port 204 are ventilatedly connected. Specifically, such as Figure 11 As shown in (A), the suction guide device 200 is in a state where the side 205b of the sliding part 205 closes the suction tube connection port 201b of the connecting tube 201 from the inside of the housing 202. Furthermore, the side 205b of the sliding part 205 does not block the inhalation port 204 from the inside of the housing 202, allowing for airflow communication between the patient-side connection port 203 and the inhalation port 204.

[0135] At this time, since the pressing part 206a of the operating part 206 is not pressed, the elastic member 206c, which is made of a coil spring, is in a neutral state. Therefore, by utilizing the neutral state of the elastic member 206c, the pressing part 206a of the operating part 206 is in a state separated from the closing part 202a. Subsequently, as Figure 11As shown in (A), the sliding part 205 is in a state of rest on the upper side of the housing 202. Therefore, the side 205b of the sliding part 205 closes the suction tube connection port 201b of the connecting tube 201 from the inside of the housing 202.

[0136] Thus, if the side 205b of the sliding part 205 closes the suction tube connection port 201b, the suction force (negative pressure) from the suction device cannot be transmitted into the housing 202. At the same time, the inhalation port 204 is connected to the patient-side connection port 203. Therefore, air from the inhalation port 204 connected to the inhalation device is delivered to the patient's lungs via the patient-side connection port 203 for positive pressure ventilation.

[0137] Additionally, when positive pressure ventilation has ended, suctioning is performed on sputum or other aspirated material from the airway, such as... Figure 11 As shown in (B), the pressing part 206a is pressed. By pressing the pressing part 206a, the sliding part 205 moves downward along the housing 202 until it engages with the inner protrusion 202b. In this way, by moving the sliding part 205 downward, the side 205b of the sliding part 205, which is closed by the suction tube connection port 201b of the connecting tube 201, is shifted away from the suction tube connection port 201b. By shifting the side 205b of the sliding part 205, after the suction tube connection port 201b is opened, this side 205b closes the suction port 204 from the inner circumferential surface of the housing 202.

[0138] Therefore, the suction force (negative pressure) from the connecting tube 201 connected to the suction device is conducted from the patient's trachea to the lungs via the patient-side connecting interface 203. This allows for vacuuming (guidance) to move suctioned material such as sputum from the lower respiratory tract, specifically the terminal bronchioles of the trachea to the upper respiratory tract, using the suction force (negative pressure) from the suction device. After moving the suctioned material to the upper respiratory tract, the cover member 206a2 of the pressing part 206a is opened, and a suction device such as a suction catheter is inserted through the opening 206a1 into the through hole 206b1 of the shaft part 206b. By inserting the suction device, the suctioned material such as sputum guided to the respiratory tract can be effectively suctioned.

[0139] Furthermore, when the vacuuming via the patient-side connection interface 203 is terminated, by ceasing the pressing operation on the pressing part 206a, the pressing part 206a returns to its original neutral state, separated from the closing part 202a, by means of the restoring force of the elastic member 206c. Consequently, the sliding part 205 moves upward along the housing 202, returning to the state where the suction tube connection port 201b of the connecting tube 201 is closed from the inner circumferential surface of the housing 202 by the side surface 205b of the sliding part 205.

[0140] Thus, in this embodiment, by sliding the sliding part 205 through the operation part 206, the connection source of the patient-side connection interface 203 of the suction guide device 200 can be easily switched to either the suction tube connection port 201b of the connection tube 201 or the suction port 204. That is, the switching operation is performed only when the pressing part 206a of the operation part 206 is pressed, so that the negative pressure from the suction device is transmitted to the patient-side connection interface 203, and vacuuming can be easily performed.

[0141] Next, using the accompanying drawings, an object attraction system and object guidance method of an object guide device 200 to which other embodiments of the present disclosure are applied will be described. Figure 12 This is a schematic structural diagram of an object attraction system implemented using an embodiment of an object guiding device that employs other embodiments of this disclosure. Furthermore, in Figure 12 In this embodiment, as the aspirate guiding device 200, the aspirate suction system 2, and the aspirate guiding method using the aspirate suction system 2, a case is shown where sputum (aspirate) is guided by a tracheostomy tube (human-worn ventilation device) worn on the patient in a tracheostomy manner and then suctioned.

[0142] The suction system 2 is suitable for suctioning bodily fluids, primarily sputum, from the trachea A1 or lungs (not shown) that obstruct the airway of a patient P1, who is a living organism. Figure 12 As shown, the object attraction system 2 is configured such that the connecting tube 201 of the aforementioned object guiding device 200 is connected to one end of the attraction tube 12 of the attraction device 10. Furthermore, in this embodiment, as... Figure 12 As shown, the object attraction system 2 is configured such that the air intake 204 of the aforementioned object guide device 200 is connected to a manually operated elastic airbag 30, which serves as an air intake device.

[0143] The suction device 10 has the function of attracting objects and includes: a suction pump 14 as a negative pressure source that generates suction pressure within the suction tube 12, which is made of a flexible resin such as polyurethane; and a receiving portion 16 that receives the objects attracted from the suction tube 12. Furthermore, when using a portable suction device as the suction device 10, the object guide tube 200 of this embodiment can be directly connected to the portable suction device for use. Therefore, in this case, the suction tube 12 can be omitted. Additionally, in the object suction system 2 of this embodiment, the object guide tube 200 is installed at one end of the suction tube 12, and the object guide tube 200 may also be configured to be integrated with the suction tube 12.

[0144] The elastic airbag 30 is a bag-shaped component, such as an ellipsoid, made of an elastomer like silicone resin, and functions as a suction device for manual ventilation. One end of the elastic airbag 30 has an outlet 30a for expelling air from the airbag 30 to the outside, and the other end has an external gas inlet 30b that introduces external gas in one direction towards the inside, with an anti-backflow function. Positive pressure ventilation is achieved by manually compressing and restoring the elastic airbag 30.

[0145] Furthermore, in the suction system 2 of this embodiment, the inhalation device connected to the inhalation interface 204 is not limited to a manual inhalation device that assists in manual ventilation, such as an elastic cuff 30 like a bag valve mask. For example, a non-elastic cuff such as a Jackson-Rees breathing circuit can also be used. In addition, mechanical inhalation devices such as invasive positive pressure ventilators for endotracheal intubation or non-invasive mask ventilators such as NPPV (Noninvasive Positive Pressure Ventilation) can also be used.

[0146] In this embodiment, for example, such as Figure 12 As shown, the patient-side connection interface 203 of the suction guide device 200 is connected to the tracheostomy tube 20, which is inserted into the incision A2 formed in the pharynx of the patient P1 and fixed by the fixation plate 22 and the cuff 24. At this time, regarding the suction guide device 200, the suction tube 12 of the suction device 10 is connected to the connecting tube 201, and the elastic cuff 30 is connected to the inhalation interface 204. Moreover, after connecting the patient-side connection interface 203 of the suction guide device 200 to one end 20a of the tracheostomy tube 20, positive pressure ventilation is first initiated using the elastic cuff 30 with the aim of oxygenating the patient's lungs and improving atelectasis.

[0147] If positive pressure ventilation ends, then by pressing the pressing part 206a of the operation unit 206, the connection source of the patient-side connection interface 203 is switched from the inspiratory interface 204 to the connection tube 201, which serves as the connection part of the housing 202, and suction operation by the suction device 10 begins. The suction force (negative pressure) from the suction device 10 is transmitted to the tracheal cannula 20 via the suction guide device 200, thereby performing vacuuming (guidance) to move the suctioned material such as sputum in the lower respiratory tract toward the upper respiratory tract.

[0148] That is, in this embodiment, the suction system 2 and the suction method are as follows: the patient-side connection interface 203 of the suction guide device 200 is connected to one end 20a of the tracheostomy tube 20. The elastic cuff 30 and the suction tube 12 of the suction device 10 are connected to the suction guide device 200. By connecting the patient-side connection interface 203 to one end 20a of the tracheostomy tube 20, positive pressure ventilation can be performed on the lungs of the patient P1 by means of the positive pressure from the elastic cuff 30. Then, when the positive pressure ventilation ends, the connection source of the patient-side connection interface 203 is switched from the inhalation interface 204 connected to the elastic cuff 30 to the connection tube 201 connected to the suction tube 12 by pressing the pressing part 206a of the operation part 206.

[0149] The aspirate guiding device 200 is also connected to the suction tube 12. Furthermore, in the aspirate guiding device 200, the patient-side connection interface 203 is connected to one end 20a of the tracheostomy tube 20. Therefore, if the connection source of the patient-side connection interface 203 is switched using the operation unit 206, the aspirate, such as sputum, is moved towards the upper respiratory tract via the tracheostomy tube 20 by the suction force (negative pressure) from the suction device 10. Thereafter, the aspirate, such as sputum, is suctioned from the trachea A1, which has been guided to the upper respiratory tract, using the suction catheter.

[0150] If the suction of sputum or other aspirated material in the trachea A1 is completed, the pressing operation on the pressing part 206a of the operating unit 206 is stopped. Then, the connection source of the patient-side connection interface 203 is switched from the connection tube 201 connected to the suction tube 12 to the inhalation interface 204 connected to the elastic air bag 30, and positive pressure ventilation from the suction device 10 is performed again, restoring the lungs to a normal state with air present. Thus, in the aspirated material suction system 2 of this embodiment, the positive pressure ventilation switching operation performed before and after the suction treatment, which is a treatment performed by causing the entire lung to contract through vacuum under negative pressure, can be easily performed using the operating part 206 of the aspirated material guiding device 200.

[0151] Thus, in the suction system 2 and suction method of this embodiment, after the suction guide device 200 performs vacuuming, the suction material that has moved towards the upper respiratory tract and into the trachea A1 is suctioned using a suction device such as a suction cannula. That is, in this embodiment, in order to facilitate the suctioning of sputum and other suction materials from the trachea A1 to the terminal bronchioles using a suction device such as a suction cannula, the suction guide device 200 is used as an accessory for guiding the portion towards the upper respiratory tract of the trachea A1. Furthermore, the suction guide device 200 is used as an operating member that allows for easy switching to positive pressure ventilation before and after vacuuming by pressing the operating part 206 when the patient-side connection interface 203 is connected to one end 20a of the tracheal cannula 20.

[0152] Next, as an example of the applicable method for guiding the aspirate in this embodiment, a sputum aspiration method that can be performed using the aspirate aspiration system 2 will be described. When aspirating sputum or other aspirate from the lower respiratory tract of patient P1, firstly, the lungs of patient P1 are auscultated with a stethoscope. Then, positive pressure ventilation is performed for 5 seconds at a positive pressure of 40 cmH2O using an inhalation device such as an elastic cuff, causing the lungs to inflate. At this time, if the distal lung relative to the location of the aspirate accumulation is atelectasis, even with vacuum extraction, there is no air in the distal lung, making it difficult to push the aspirate towards the upper respiratory tract. Therefore, positive pressure ventilation is performed before the aspiration procedure.

[0153] Furthermore, when sputum suction is required, patient P1's respiratory status often deteriorates, and blood oxygen saturation is frequently low. During sputum suction, patient P1 may experience difficulty breathing and hypooxidation. Therefore, in this embodiment, when performing the aforementioned positive pressure ventilation before suction, oxygen is mixed into the positive pressure ventilation to stabilize the patient's condition before initiating suction. Additionally, to stabilize patient P1's condition quickly, a high concentration of oxygen can be mixed into the positive pressure ventilation; however, if a short duration is not required, ordinary air containing oxygen can be used for positive pressure ventilation. Furthermore, pressure ventilation devices (inhalation devices) such as elastic airbags can also be included as components of the suction system 2 of this embodiment.

[0154] Subsequently, a vacuum is applied for 5 seconds at a negative pressure of 60 cmH2O (i.e., -60 cmH2O) to cause the lungs to contract and guide the suctioned material, such as sputum, to the upper respiratory tract. Then, the suctioned material is aspirated using a suction catheter or other suction device. If the lungs are compressed during this vacuum process, atelectasis may occur. Therefore, positive pressure ventilation is applied again for 5 seconds at a positive pressure of 40 cmH2O, thereby restoring the lungs to their normal state with air present. Thus, in the suction system 2 of this embodiment, positive pressure ventilation must be performed before and after the suction process performed by causing the lungs to contract under negative pressure.

[0155] In the aspirate guidance method of the aspirate suction system 2 of this embodiment, after auscultation of patient P1, a cycle of positive pressure ventilation, vacuuming under negative pressure, suctioning of the aspirate guided to the upper respiratory tract, and then positive pressure ventilation again is repeated until patient P1's symptoms improve. Thus, in the aspirate suction system 2 of this embodiment, after connecting the aspirate guidance device 200 to the front end of the suction tube 12 of the suction device 10, a vacuuming operation is performed to guide the aspirate in the lower respiratory tract toward the upper respiratory tract. Furthermore, by using a suction device such as a suction catheter to suction the aspirate guided to the upper respiratory tract through the vacuuming operation, easy and minimally invasive sputum suction is achieved.

[0156] Furthermore, in this embodiment, by performing positive pressure ventilation before and after the suction operation, a less invasive sputum suction method that further reduces the pain of patient P1 is achieved. In particular, in this embodiment, when performing positive pressure ventilation before and after a vacuum suction operation under negative pressure, the operating section 206 is pressed while the patient-side connection interface 203 of the suction guide device 200 is connected to one end 20a of the tracheostomy tube 20. By performing this pressing operation, the switching operation between vacuum suction under negative pressure and positive pressure ventilation can be easily performed. Therefore, the invasion of foreign objects such as viruses or bacteria from the outside can be suppressed during this switching operation, and closed-loop sputum suction can be achieved more hygienically.

[0157] Furthermore, in this embodiment, in the suction system 2, the patient-side connection interface 203 of the suction guide device 200 connected to the suction tube 12 is connected to the tracheostomy tube 20 worn on the throat of the patient P1. A vacuum is then created, and the suction tube or similar device is used to suction the suction material guided to the upper respiratory tract. Other methods can also be applied. That is, the suction system 2 of this embodiment can be configured even without inserting a human-worn ventilation component such as the tracheostomy tube 20. Figure 13 As shown.

[0158] Figure 13 An embodiment of a method for guiding aspirated objects, incorporating an object-attracting device 200, an object-attracting system 2, and an object-attracting method of the object-attracting system 2, is shown. Specifically, Figure 13 An embodiment is shown in which a suction guide device 200, which connects the suction tube 12 and the elastic air bladder 30 of the suction device 10, is connected to a branch port 44 to guide the suctioned material. The branch port 44 branches off from a connecting member 42 installed at the end of an inhalation mask 40 covering the patient P1's mouth. Furthermore, the inhalation mask 40 can also be, for example, a mouth-nose mask.

[0159] In this embodiment, the patient-side connection interface 203 of the suction guide device 200 is connected to the branch port 44 of the connecting member 42 of the inspiratory mask 40. Through this connection, negative pressure from the suction device 10 is conducted towards the upper respiratory tract, creating a vacuum for suctioned material such as sputum in the lower respiratory tract from the trachea A1 to the terminal bronchioles. Therefore, the suctioned material can be guided into the oral cavity of the upper respiratory tract, and the suctioned material guided into the oral cavity of the upper respiratory tract can be easily suctioned using a suction device such as a suction cannula. Furthermore, in this embodiment, by creating a vacuum via the inspiratory mask 40, suctioned material from not only the oral cavity but also the nasal cavity can be guided and suctioned towards the inspiratory mask 40.

[0160] Furthermore, the object attraction system 2 of this embodiment can be configured as an object guiding device 200, an object attraction system 2, and an object guiding method using the object attraction system 2 in other embodiments. Figure 14 As shown. That is, as Figure 14 As shown, the suction system 2 of this embodiment is applicable to patients under mechanical ventilation in the ICU or other postoperative ICU, where the endotracheal tube 50 is inserted from the mouth of patient P1 into the trachea A1 and the suctioned material such as sputum is removed.

[0161] Specifically, an endotracheal tube 50 is inserted into the trachea A1, and the tip of the endotracheal tube 50 is secured using a cuff 52. The suction guide device 200 is then connected to the joint 50a at the base of the endotracheal tube 50. By connecting the suction guide device 200 in this way, negative pressure from the suction device 10 is conducted, creating a vacuum to guide suctioned material such as sputum to the upper respiratory tract. Then, the suctioned material, which has been guided to the upper respiratory tract, is aspirated using a suction device such as a suction catheter, thereby removing the suctioned material.

[0162] In this way, by connecting the patient-side connection interface 203 of the aspirate guide device 200 to the joint 50a of the endotracheal tube 50, negative pressure from the suction device 10 is conducted to vacuum the aspirated material such as sputum in the lower respiratory tract. Therefore, the aspirated material can be guided to the upper respiratory tract side, and thus, the aspirated material guided to the upper respiratory tract side can be easily aspirated using a suction device such as a suction catheter.

[0163] Furthermore, in this embodiment, when positive pressure ventilation is performed before and after the suction operation, the operation unit 206 is pressed while the patient-side connection port 203 is connected to the joint 50a of the endotracheal tube 50, thereby easily switching between vacuum and positive pressure ventilation. Therefore, the invasion of foreign objects such as viruses or bacteria from the outside can be suppressed, enabling more hygienic closed-loop sputum suction.

[0164] Next, the function and effects of the attractant guiding device 200 and the attractant attraction system 1 in other embodiments of this disclosure will be explained.

[0165] The aspirated object guiding device 200 of this embodiment is configured to connect to both the suction device 10 and the suction device (elastic airbag 30), and the connection source of the patient-side connection interface 203 can be easily switched using the operation unit 206. After connecting the patient-side connection interface 203 to the human-worn ventilation member, the connection source of the patient-side connection interface 203 is switched by pressing the pressing part 206a of the operation unit 206, thus allowing easy switching between positive pressure ventilation and vacuum. Therefore, in this embodiment, the invasion of foreign objects such as viruses or bacteria from the outside can be suppressed, and the aspiration of the aspirated object can be performed more hygienically and with less invasive closed-loop suction.

[0166] That is, in this embodiment, the patient-side connection interface 203 of the suction guide device 200, which is connected to both the suction device 10 and the inhalation device, is connected to a human-worn ventilation component such as the endotracheal tube 50, endotracheal cannula 20, or inhalation mask 40 worn by the patient P1. Then, by pressing the pressing part 206a of the operation part 206, the connection source of the patient-side connection interface 203 is switched from the inhalation interface 204 to the suction tube connection port 201b of the connecting tube 201.

[0167] In this way, by switching the connection source of the patient-side connection interface 203 to the state of the suction device 10 connected to the connection tube 201, and connecting it to the human-worn ventilation component, the aspirated material is guided to the upper respiratory tract side. Therefore, the aspirated material can be guided to the upper respiratory tract side with a simple technique, thereby enabling the aspirated material from the upper respiratory tract side to be suctioned (expelled from the body) in a low-invasive and easy manner.

[0168] Furthermore, in this embodiment, the connection is made by inserting the connecting tube 201 of the suction guide device 200 into the front end of the suction tube 12, ensuring a tight fit between the suction tube 12 and the connecting tube 201. Moreover, the patient-side connection interface 203 of the suction guide device 200 is connected to a human-worn ventilation component such as the endotracheal cannula 20 or endotracheal tube 50. Therefore, according to this embodiment, even a non-skilled operator can achieve the same vacuuming effect as a skilled operator, and anyone can easily perform the same vacuuming.

[0169] Furthermore, in this embodiment, it is used as an accessory to connect the connecting tube 201 of the suction guide device 200 to a human-worn ventilation component such as the tracheostomy cannula 20 or endotracheal tube 50 worn on the patient's P1 side after the connecting tube 201 of the suction guide device 200 is installed at the front end of the suction tube 12. Thus, by using the suction guide device 200, a tight fit between the suction guide device 200 and the suction tube 12 can be ensured, allowing the suction guide device 200 to connect to the human-worn ventilation component. Therefore, the suction force (negative pressure) from the suction device 10 will not leak from the position where the suction tube 12 and the connecting tube 201 of the suction guide device 200 are in close contact, and will not be conducted to the human-worn ventilation component such as the tracheostomy cannula 20 or endotracheal tube 50.

[0170] In this embodiment, the connecting tube 201 of the suction guide device 200 is connected to one end of the suction tube 12. Then, with the patient-side connecting interface 203 of the suction guide device 200 connected to a human-worn ventilation component such as a tracheostomy cannula 20 or endotracheal tube 50 worn on the patient P1 side, the pressing part 206a of the operation section 206 is pressed. By pressing the pressing part 206a, the connection source of the patient-side connecting interface 203 is switched to the connecting tube 201 connected to the suction device. Then, by creating a vacuum through the patient-side connecting interface 203, the suctioned material, such as sputum, in the lower respiratory tract of the patient P1 is moved to the upper respiratory tract side. Therefore, the suctioned material that has moved to the upper respiratory tract side can be easily suctioned and removed using a suction device such as a suction catheter.

[0171] In particular, in this embodiment, the shaft portion 206b constituting the operating part of the aspirate guiding device 200 is a resinous tubular member with a through hole 206b1 provided along the axial direction. Therefore, by performing vacuuming via the aspirate guiding device 200, aspirate such as sputum in the lower respiratory tract of patient P1 can be moved to the upper respiratory tract side. Then, after the aspirate is moved to the upper respiratory tract side, the cover member 206a2 of the pressing part 206a is opened, and a suction device such as a suction catheter is inserted through the opening 206a1 with the through hole 206b1 through it, allowing for easy suction removal. Furthermore, once the aspirate removal is complete, the opening 206a1 is closed by the cover member 206a2, preventing the invasion of foreign objects such as viruses or bacteria from the outside, thereby enabling a more hygienic suction removal operation.

[0172] Furthermore, in this embodiment, as described above, positive pressure ventilation is performed using an inspiratory device such as the elastic cuff 30 before the vacuuming operation under negative pressure and after the suction operation of the aspirate guided to the upper respiratory tract side. This allows for easy and minimally invasive suction removal of aspirate such as sputum. In particular, in this embodiment, by pressing the pressing part 206a of the operation part 206, the connection source of the patient-side connection interface 203 of the aspirate guide device 200, which is connected to both the suction device 10 and the inspiratory device, can be easily switched. Therefore, the invasion of foreign objects such as viruses or bacteria from the outside can be suppressed, and closed-loop sputum suction can be achieved more hygienically.

[0173] In this embodiment, the suction guide device 200 is installed at the front end of the suction tube 12 and serves as an accessory for connection to a wearable ventilation component installed on the patient P1 side. Thus, by using the suction guide device 200, the suctioned material can be easily guided to the upper respiratory tract side, making it easier to suction the material guided to the upper respiratory tract side and improving suction efficiency. In methods where the suction catheter is blindly and deeply inserted into the patient P1's airway during sputum suction, causing coughing, not only does the patient P1 experience pain, but there is also a risk of serious complications such as cerebrovascular disorders due to airway damage or increased blood pressure. In contrast, in this embodiment, the risk of such pain and complications can be suppressed.

[0174] Furthermore, similar to the previous embodiment, this embodiment does not use expensive devices for mechanical cough assist (MI-E), enabling efficient sputum suction. Therefore, it is possible to alleviate patient P1's suffering at a lower cost, improving patient P1's QOL (Quality of Life) and achieving minimally invasive suction of sputum and other aspirated material. Moreover, in this embodiment, the aspirate guide device 200 has a simple structure; therefore, compared to mechanical cough assist devices (e.g., MI-E) or sputum suction methods using devices (e.g., tracheoscopic endoscopy, impingement ventilator), the aspirate guide device 200 can be mass-produced at a lower cost, and preparation and cleanup time can be reduced.

[0175] Furthermore, in this embodiment, compared to postural drainage, compression (manual respiratory assistance), and other sputum suction methods, the suctioned material can be reliably guided in a shorter time. In particular, in the case of long-term bedridden patients, postural drainage or compression carries the risk of fracture due to changes in position or localized manual pressure. Therefore, according to the vacuum method of this embodiment, the suctioned material can be effectively aspirated regardless of the patient's position, thus reducing the risk of fracture due to changes in position or localized manual pressure.

[0176] Furthermore, as described above, various embodiments of this disclosure have been detailed. However, it will be readily understood by those skilled in the art that various modifications are possible that do not depart from the limitations and effects of this disclosure. Therefore, all such modifications are included within the scope of this disclosure.

[0177] For example, in the specification or drawings, any term that is described at least once with a different term that is more general or synonymous can be replaced with that different term anywhere in the specification or drawings. Furthermore, the configuration and operation of the attracted object guide tube and the attracted object attraction system are not limited to the descriptions in the various embodiments of this disclosure, and various modifications are possible.

[0178] Explanation of reference numerals in the attached figures

[0179] 1. Suction system for the object being suctioned; 10. Suction device; 12. Suction tube; 14. Suction pump; 16. Receptacle; 20. Tracheal cannula; 20a. One end; 22. Fixing plate; 24. Cuff; 30. Elastic airbag (inhalation device); 30a. Exhaust port; 30b. External gas inlet; 40. Suction mask; 42. Connecting member; 44. Branch port; 50. Tracheal tube; 52. Cuff; 100, 200. Object guiding device; 101. Object exhaust port; 101a. Locking protrusion. 101b Cover, 101b1 Connecting part, 102, 202 Housing, 103, 203 Patient-side connection interface, 104, 204 Inspiratory interface, 105 Connection source switching part, 105a Switching valve, 105a1 Valve component, 105a2 Central part, 105b Suction ventilation path, 105c Inspiratory ventilation path, 106, 206 Operating part, 106a Fitting hole, 106b Key wedge, 107 Suction catheter, 107a Front end, 107 b. Base end, 108. Cover component, 108a. Front end, 108b. Base end, 108c. Closed channel, 109. Coil spring (elastic component), 110. Guide tube for attracted object, 111. Guide tube body, 112, 201. Connecting tube (suction connection part), 112a. Opening, 113. Support, 113a. Holding part, 114. Middle cover, 114a. Opening, 115. Hinge part, 116. Front cover, 117. Connecting cord, 201b. Suction tube connection port ( 202a (exhaust port), 202a1 (opening), 202b (inner protrusion), 205 (sliding part (switching valve)), 205a (ventilation port), 205b (side), 205c (fitting hole), 206a (pressing part), 206a1 (opening), 206a2 (cover component), 206a3 (connecting flexible wire), 206b (shaft), 206b1 (through hole), 206c (coil spring (elastic component)), A1 (trachea), A2 (incision hole), P1 (patient (organism)).

Claims

1. An aspirate guiding device for guiding aspirate from an organism towards the upper respiratory tract, wherein, have: A housing having an attractive discharge port for discharging the attractive object; The patient-side connection interface allows for connection to the patient's side. It also includes an air intake interface that can be connected to an air intake device; The sliding part is a switching valve that can be slidably disposed in the housing and can switch the connection source of the patient-side connection interface to either the suction outlet or the inhalation interface. An operating unit that moves the sliding part along the housing; The shaft is mounted on the sliding part and has a through hole along the axial direction; as well as The cover component is capable of opening and closing the opening that communicates with the through hole; The object-attracting guiding device is configured such that, after the cover member is opened, a suction device for attracting the object can be inserted through the through hole from the opening.

2. The object guiding device according to claim 1, wherein, The aspirated object guiding device also has an elastic member that moves the switching valve, causing the connection source of the patient-side connection interface to change from the aspirated object outlet to the inhalation interface.

3. The object guiding device according to claim 1, wherein, A suction connection part, which connects to the suction tube of the suction device, is located at a first position on the side of the housing. The patient-side connection interface is located on the lower end of the housing. The air intake port is located at a second position on the side of the housing. The switching valve is configured to have an opening at the lower end and an air vent at the upper end, and to slide within the housing, thereby closing either the suction tube connection port at the base end of the suction connection or the suction port using the side.

4. The object guiding device according to claim 3, wherein, The operating unit switches between two states by moving the switching valve along the housing between the first position and the second position: a state in which the suction tube connection port is closed by the side of the switching valve, allowing air to pass between the patient-side connection port and the inhalation port; and a state in which the inhalation port is closed by the side of the switching valve, allowing air to pass between the patient-side connection port and the suction tube connection port via the vent of the switching valve.

5. The object guiding device according to claim 2, wherein, The operating unit has: The pressing part allows for external pressing, and The shaft connects the pressing part to the switching valve; The operating part transmits the pressing force of the pressing part to the switching valve via the shaft part, causing the switching valve to move along the inside of the housing.

6. The object guiding device according to claim 5, wherein, The elastic member is a helical spring disposed between the sealing portion that blocks the upper end of the housing and the pressing portion, and has a restoring force relative to the pressing direction of the pressing portion.

7. An attractor system for attracting attractants from an organism, wherein, have: The suction device is equipped with a suction tube; The object guiding device according to any one of claims 1 to 6 is connected to one end of the suction tube; and The suction device is connected to the suction port of the object-attracting guide device.

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