Connecting device for respiratory system after general anesthesia

Abstract

The utility model discloses a connecting device for a respiratory system after general anesthesia. The problem that an existing trachea cannula and a heat and temperature exchange filter are prone to falling off in the using process is solved. The device comprises a heat and temperature exchange filter which is used for heat and temperature exchange and / or particle filtration of breathing gas; the heat and temperature exchange filter comprises a first joint, a second joint and a filter body; the trachea cannula comprises a tracheal catheter and a tracheal tube connector; the limiting assembly is connected with the heat and temperature exchange filter and / or the trachea cannula and used for limiting the relative position of the air pipe connector and the second connector. The trachea cannula has the advantages that the limiting assembly is arranged, and the relative position of the air pipe connector and the second connector is limited through the limiting assembly, so that the trachea cannula is prevented from falling off, and the product safety is higher. The utility model also has the advantages of simple structure, convenience in assembly, simplicity in operation, long service life and the like.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a connection device for the respiratory system after general anesthesia. Background Technology

[0002] Currently, oral insertion of an endotracheal tube is the most common method for establishing an artificial airway in the treatment of critically ill patients. For example, in well-known clinical cardiopulmonary resuscitation (CPR) in China, one of the most frequently used rescue measures involves inserting a breathing tube through the mouth into the patient's trachea to enhance assisted breathing. An artificial airway typically consists of a breathing circuit Y-shaped component, a heat exchange filter, and an endotracheal tube. The breathing circuit Y-shaped component and the heat exchange filter are usually connected by threads. Since the endotracheal tube usually includes an inner core and a cuff, the inner core must be removed during use; therefore, the endotracheal tube and the heat exchange filter must be separate components. Because the heat exchange filter can be connected to the endotracheal tube or a face mask, its interface is usually universal to accommodate more products. However, when one end of the endotracheal tube is inserted into the heat exchange filter and tightly fitted, the endotracheal tube and the heat exchange filter may detach during actual use, posing a certain safety hazard. Utility Model Content

[0003] To address the problem of existing endotracheal tubes and heat exchange filters easily detaching during use, this invention provides a connection device for the respiratory system after general anesthesia.

[0004] The technical solution of this utility model is: a connection device for the respiratory system after general anesthesia, comprising:

[0005] A heat exchange filter is used for heat exchange and / or filtering of particulate matter in breathing gas; the heat exchange filter includes a first connector, a second connector, and a filter body; the first connector is connected to the second connector through the filter body.

[0006] Endotracheal intubation, wherein the endotracheal intubation tube includes an endotracheal tube and an endotracheal connector; wherein the endotracheal tube is connected to a second connector via the endotracheal connector.

[0007] A limiting component is connected to a heat exchange filter and / or an endotracheal cannula. The limiting component includes a limiting pin with a slot. The slot is inserted into the endotracheal connector and / or the second connector to limit the relative position of the endotracheal connector and the second connector.

[0008] As a further improvement of this utility model, the tracheal connector includes a first insertion part, a shoulder part, and a neck. The first insertion part is inserted into and connected to the second connector. The outer diameter of the shoulder part is larger than the outer diameter of the neck. The slot cooperates with the neck and causes the limiting pin to abut against the axially upward end face of the shoulder part.

[0009] As a further improvement of this utility model, the endotracheal connector includes a second insertion part, which is inserted into the endotracheal tube and pressurized with the endotracheal tube, and the first insertion part is inserted into the second connector and pressurized with the second connector.

[0010] As a further improvement of this utility model, a connecting part is provided between the second connector and the filter body, the outer diameter of the second connector is larger than the outer diameter of the connecting part, and the slot is adapted to the connecting part so that the limiting pin abuts against the axial end face of the second connector.

[0011] As a further improvement of this utility model, there are two limiting pins, and each limiting pin is provided with the slot. The slots on the two limiting pins abut against the shoulder and the second connector respectively for axial limiting of the air pipe connector and the second connector. The slots are U-shaped or arc-shaped.

[0012] As a further improvement of this utility model, it also includes a first elastic element, wherein there are two limiting pins, which are respectively disposed on the first connector and the second connector. The two ends of the first elastic element are respectively connected to the first connector and the second connector and have a tendency to drive the limiting pin of the second connector to move closer to the limiting pin of the first connector.

[0013] As a further improvement of this utility model, there are two limiting pins, which are respectively disposed on the first connector and the second connector. The first connector and the second connector form a stop fit, making the distance between the two limiting pins adjustable.

[0014] As a further improvement of this utility model, the first connecting member is provided with a plurality of gear holes, and the second connecting member is provided with a gear component that is adapted to the gear holes.

[0015] As a further improvement of this utility model, it also includes a second elastic member, which abuts against the gear shift member and has a tendency to move outward from the gear shift member. The first connecting member has a safety limiting hole on the outer side of the gear shift hole relative to the second connecting member.

[0016] As a further improvement of this utility model, the limiting component is detachably connected to the heat exchange filter and / or endotracheal tube, and the first connector is provided with a threaded part for easy connection with the Y-shaped part of the breathing circuit.

[0017] The beneficial effects of this invention are that it incorporates a limiting component to restrict the relative position of the endotracheal tube connector and the second connector, thereby preventing the endotracheal tube from dislodging and enhancing product safety. This invention also boasts advantages such as simple structure, convenient assembly, easy operation, and long service life. Attached Figure Description

[0018] Appendix Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0019] Appendix Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0020] Appendix Figure 3 This is a schematic diagram of the structure of the limiting component in an embodiment of the present utility model.

[0021] In the figure, 1. Heat exchange filter; 11. First connector; 111. Threaded part; 12. Second connector; 13. Filter body; 14. Connecting part; 2. Endotracheal tube; 21. Endotracheal tube; 22. Endotracheal connector; 221. First insertion part; 222. Shoulder part; 223. Neck; 224. Second insertion part; 3. Limiting component; 31. Limiting pin; 311. Slot; 32. First connector; 321. Stop hole; 322. Safety limit hole; 33. Second connector; 331. Stop component; 34. First elastic component; 35. Second elastic component. Detailed Implementation

[0022] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0023] Depend on Figure 1 Combination Figure 2-3 As shown, a connection device for the respiratory system after general anesthesia includes:

[0024] A heat exchange filter 1 is used for heat exchange and / or filtering of particulate matter in breathing gas; the heat exchange filter 1 includes a first connector 11, a second connector 12 and a filter body 13; the first connector 11 is connected to the second connector 12 through the filter body 13.

[0025] The endotracheal tube 2 includes an endotracheal tube 21 and an endotracheal connector 22; the endotracheal tube 21 is connected to the second connector 12 through the endotracheal connector 22.

[0026] A limiting component 3 is connected to the heat exchange filter 1 and / or the endotracheal tube 2. The limiting component 3 includes a limiting pin 31 with a slot 311. The slot 311 is inserted into the endotracheal connector 22 and / or the second connector 12 to limit the relative position of the endotracheal connector 22 and the second connector 12. In use, the limiting component is directly pressed down to lock the endotracheal connector and the second connector, preventing them from falling off. This simple structure and convenient operation are preferred features of this invention. In practice, the first connector, the second connector, and the filter body are usually an integrated structure, and the endotracheal connector is usually tightly fitted with the endotracheal tube to form an integrated structure. This simplifies connection and operation. The beneficial effect of this invention is that the limiting component restricts the relative position of the endotracheal connector and the second connector, thereby preventing the endotracheal tube from falling off and improving product safety. This invention also has the advantages of simple structure, convenient assembly, simple operation, and long service life.

[0027] The endotracheal connector 22 includes a first insertion portion 221, a shoulder portion 222, and a neck portion 223. The first insertion portion 221 is inserted into and connected to the second connector 12. The outer diameter of the shoulder portion 222 is larger than the outer diameter of the neck portion 223. The slot 311 mates with the neck portion 223, causing the limiting insertion pin 31 to abut against the axially upward end face of the shoulder portion 222. Specifically, the endotracheal connector 22 includes a second insertion portion 224, which is inserted into the endotracheal tube 21 and press-fits with it. The first insertion portion 221 is inserted into the second connector 12 and press-fits with it. This structure makes it easy to connect the limiting component to the endotracheal connector, is simple in structure, and easy to operate. After the limiting component is connected, the endotracheal tube is not easily dislodged, preventing the endotracheal tube from separating from the heat exchange filter during surgery.

[0028] A connecting portion 14 is provided between the second connector 12 and the filter body 13. The outer diameter of the second connector 12 is larger than the outer diameter of the connecting portion 14. The slot 311 is adapted to the connecting portion 14, and the limiting pin 31 abuts against the axial end face of the second connector 12. This structure makes it convenient to connect the limiting component to the second connector, is simple in structure, and easy to operate. After the limiting component is connected, one side of the heat exchange filter is less likely to be pulled away by other tubes of the respiratory system, thus separating the tracheal tube from the heat exchange filter and improving the safety performance of the product.

[0029] The aforementioned limiting pins 31 are two in number, each with a slot 311. The slots 311 on the two limiting pins 31 respectively abut against the shoulder portion 222 and the second connector 12, providing axial limiting for the tracheal connector 22 and the second connector 12. The slots 311 are U-shaped or arc-shaped. Generally, the outer diameter of the connecting part is larger than the outer diameter of the neck; however, for ease of production or operation, the slots of the two limiting pins can be the same or similar, facilitating operation by medical personnel, simplifying the structure, and simplifying production. In practice, the slots can be U-shaped or semi-circular, etc. The limiting component of this invention can be integrally molded from plastic. The limiting pins can be made of materials such as resin film, resulting in a simple structure and low production cost.

[0030] This utility model also includes a first elastic element 34. Two limiting pins 31 are respectively disposed on the first connector 32 and the second connector 33. The two ends of the first elastic element 34 are connected to the first connector 32 and the second connector 33 respectively, and have a tendency to drive the limiting pin 31 on the second connector 33 to move closer to the limiting pin 31 on the first connector 32. The arrangement of the first elastic element, the first connector, and the second connector allows for adjustable spacing between the two limiting pins, resulting in a wide product compatibility range. Furthermore, the first elastic element allows the two limiting pins to move closer together, thus acting similarly to clamping a tracheal tube connector and a second connector. Simultaneously, the first elastic element prevents the second connector from being pulled apart from the first connector during use by the tracheal tube, making product adjustment convenient and ensuring high safety.

[0031] The aforementioned limiting pin 31 has two parts, which are respectively disposed on the first connector 32 and the second connector 33. The first connector 32 and the second connector 33 form a locking engagement, making the distance between the two limiting pins 31 adjustable. This facilitates adjustment of the distance between the two limiting pins and adapts to products of different specifications. The two pins can be clamped together in the middle, ensuring a reliable connection between the heat exchange filter and the endotracheal tube. In this invention, the locking component and locking hole can be used independently or in conjunction with the first elastic component. The preferred embodiment of this invention is the use of both together. This way, when medical personnel clamp the tube, if the endotracheal connector needs to be separated from the second connector (due to accidental contact or patient displacement causing the endotracheal connector to be pulled away from the second connector during use), it needs to overcome the force at the locking component and the tension at the first elastic component, making the endotracheal connector more difficult to separate and improving safety upon contact.

[0032] The first connecting member 32 is provided with multiple shift holes 321, and the second connecting member 33 is provided with shift members 331 that are adapted to the shift holes 321. Specifically, it also includes a second elastic member 35, which abuts against the shift member 331 and has a tendency to move the shift member 331 outward. The first connecting member 32 is provided with a safety limiting hole 322 on the outer side of the shift hole 321 relative to the second connecting member 33. The setting of the shift holes and shift members allows the first and second connecting members to reliably extend and retract, and at the same time be reliably fixed, preventing them from being pulled apart by forces from both sides. A safety limiting hole is also provided on the outermost side. Even if the shift member accidentally disengages from the shift hole during actual use, it will fall into the safety limiting hole, which limits the shift member and prevents the endotracheal tube from falling out, facilitating quick re-insertion by medical personnel.

[0033] The limiting component 3 is detachably connected to the heat exchange filter 1 and / or the endotracheal tube 2, and the first connector 11 is provided with a threaded portion 111 for easy connection with the Y-type component of the breathing circuit. This structure makes the product widely adaptable and simple in design.

[0034] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the inventive concept will be included within the scope of protection of this utility model patent.

Claims

1. A connection device for the respiratory system after general anesthesia, characterized in that: include: A heat exchange filter (1) is used for heat exchange and / or filtration of particulate matter in breathing gas; the heat exchange filter (1) includes a first connector (11), a second connector (12) and a filter body (13); the first connector (11) is connected to the second connector (12) through the filter body (13); The endotracheal tube (2) includes an endotracheal tube (21) and an endotracheal connector (22); the endotracheal tube (21) is connected to the second connector (12) through the endotracheal connector (22); The limiting component (3) is connected to the heat exchange filter (1) and / or the endotracheal tube (2). The limiting component (3) includes a limiting pin (31). The limiting pin (31) is provided with a slot (311). The slot (311) is inserted into the endotracheal connector (22) and / or the second connector (12) to limit the relative position of the endotracheal connector (22) and the second connector (12).

2. The connection device for the respiratory system after general anesthesia according to claim 1, characterized in that... The tracheal connector (22) includes a first insertion part (221), a shoulder part (222) and a neck (223). The first insertion part (221) is inserted into the second connector (12) and connected to the second connector (12). The outer diameter of the shoulder part (222) is larger than the outer diameter of the neck (223). The slot (311) cooperates with the neck (223) and makes the limiting pin (31) abut against the end face of the shoulder part (222) in the axial direction.

3. A connection device for the respiratory system after general anesthesia according to claim 2, characterized in that... The endotracheal connector (22) includes a second insertion part (224), which is inserted into the endotracheal tube (21) and pressurized with the endotracheal tube (21), and the first insertion part (221) is inserted into the second connector (12) and pressurized with the second connector (12).

4. A connection device for the respiratory system after general anesthesia according to claim 2, characterized in that... A connecting part (14) is provided between the second connector (12) and the filter body (13). The outer diameter of the second connector (12) is larger than the outer diameter of the connecting part (14). The slot (311) is adapted to the connecting part (14) and the limiting pin (31) abuts against the axial end face of the second connector (12).

5. A connection device for the respiratory system after general anesthesia according to claim 2, characterized in that... There are two limiting pins (31), and each limiting pin (31) is provided with a slot (311). The slots (311) on the two limiting pins (31) respectively abut against the shoulder (222) and the second connector (12) for axial limiting of the air pipe connector (22) and the second connector (12). The slots (311) are U-shaped or arc-shaped.

6. A connection device for the respiratory system after general anesthesia according to claim 1, characterized in that... It also includes a first elastic element (34), and there are two limiting pins (31). The two limiting pins (31) are respectively disposed on the first connector (32) and the second connector (33). The two ends of the first elastic element (34) are respectively connected to the first connector (32) and the second connector (33) and have the tendency to drive the second connector (33) to move the limiting pin (31) closer to the limiting pin (31) of the first connector (32).

7. A connection device for the respiratory system after general anesthesia according to claim 1 or 6, characterized in that... There are two limiting pins (31), which are respectively located on the first connector (32) and the second connector (33). The first connector (32) and the second connector (33) form a stop fit and make the distance between the two limiting pins (31) adjustable.

8. A connection device for the respiratory system after general anesthesia according to claim 7, characterized in that... The first connector (32) is provided with a plurality of gear holes (321), and the second connector (33) is provided with a gear component (331) that is adapted to the gear holes (321).

9. A connection device for the respiratory system after general anesthesia according to claim 7, characterized in that... It also includes a second elastic member (35), which abuts against the gear member (331) and has a tendency to move outward from the gear member (331). The first connecting member (32) has a safety limiting hole (322) on the outside of the gear hole (321) relative to the second connecting member (33).

10. A connection device for the respiratory system after general anesthesia according to claim 1, characterized in that... The limiting component (3) is detachably connected to the heat exchange filter (1) and / or the endotracheal tube (2), and the first connector (11) is provided with a threaded part (111) for easy connection with the Y-shaped part of the breathing circuit.

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