Breathing connector and closed sputum suction tube

Abstract

The utility model relates to the technical field of medical instruments, and discloses a breathing connector and a closed type sputum suction catheter comprising the breathing connector, the breathing connector comprises a breathing cavity, an isolation cavity, an isolation assembly arranged in the isolation cavity and an external connection cavity, the isolation cavity is provided with a communication hole, and the isolation cavity is provided with a through hole. The communicating holes are communicated with the external cavity and the breathing cavity respectively, and the communicating or isolating state between the communicating holes can be switched by operating the isolating assembly; the breathing connector comprises an operation feedback mechanism, and when the communicating hole is switched to be in the communicating or isolating state, the operation feedback mechanism can provide operation feedback. The operation feedback mechanism comprises a fixed buckle part and an active feedback part, and the operation feedback mechanism provides operation feedback through connection of the fixed buckle part and the active feedback part. According to the utility model, the suction catheter can be easily and safely connected and isolated, and the isolation component can be prevented from being accidentally opened or closed.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, it relates to a breathing joint and adopt closed suction tube of breathing joint. BACKGROUND

[0002] Patient care for the respiratory system is an important area in the medical field, with needs spanning from infants to the elderly. Such patients face a wide variety of respiratory ailments, both temporary and permanent. Procedures for intubated patients can include: ventilation, suction, oxygenation, sampling, visual inspection, on-line sensing, pressure monitoring, irrigation, medication, and / or lavage. Healthcare workers attempt to meet the multiple needs of the patient.

[0003] In clinical practice, patients who are unable to expel sputum or cough, resulting in difficulty breathing, require artificial sputum suction to clear respiratory secretions and maintain airway patency. Secretion removal is accomplished by a suction catheter that is temporarily placed in an artificial airway via a respiratory access assembly. An artificial airway is an endotracheal tube placed in a portion of a patient's airway to provide air (or oxygen and other gases) to the lungs of such a patient. While this process sounds simple, it is fraught with difficulties, particularly when the caregiver must change equipment or perform other treatments sequentially or simultaneously. It is undesirable to deprive the patient of oxygen during the secretion removal process. In fact, opening the respiratory circuit can result in the patient contracting ventilator-associated pneumonia. These problems are also encountered in other respiratory system care procedures such as bronchoscopy, bronchoalveolar lavage, and the like. Therefore, it is necessary to address and overcome these difficulties.

[0004] Providing an isolation valve between the artificial airway and the closed suction catheter can isolate the suction catheter from the respiratory circuit when the suction catheter is idle, reduce the number of times the closed respiratory circuit is opened, improve the safety of respiratory care, and moderately extend the service life of the suction catheter. Since the isolation valve needs to have a certain degree of airtightness, the commonly used rotary isolation valve has a certain operating resistance, and the caregiver is prone to overexertion and damage to the isolation valve. Another common isolation valve is an automatic flap valve, which has poor airtightness and cannot lock the open and closed states of the valve. SUMMARY

[0005] The technical problem to be solved by the embodiments of the utility model lies in providing a breathing joint, which facilitates the control of the communication and isolation between an artificial airway and an external respiratory care device, provides corresponding operation feedback to the operator, prevents improper operation or overexertion, and stably maintains the state of communication or isolation.

[0006] To solve the above technical problems, the utility model discloses a kind of breathing joints, including breathing cavity, isolation cavity, isolation component being arranged in the isolation cavity, and for connecting external device external cavity, the two ends of the isolation cavity are respectively provided with communication hole, to be communicated respectively with the external cavity and the breathing cavity,

[0007] Wherein, by operating the isolation component, the communication between the communication holes can be switched between communication or isolation state;

[0008] The breathing joint includes an operation feedback mechanism that provides operation feedback when the communication holes are switched between communication or isolation state.

[0009] Specifically, the operation feedback mechanism can include a fixed buckle part and an active feedback part, and the operation feedback mechanism provides operation feedback through the engagement of the fixed buckle part and the active feedback part. Preferably, one of the fixed buckle part and the active feedback part is arranged in the isolation cavity, and the other is arranged in the isolation component.

[0010] In some embodiments, the isolation component includes a valve core and an actuating ring for driving the valve core to move, so as to switch the communication between the communication holes between communication or isolation state. For example, the communication between the communication holes is switched between communication or isolation state by rotating the actuating ring.

[0011] In some embodiments, the actuating ring is provided with a force receiving part that receives external force, and the side wall of the isolation cavity is provided with a window of a predetermined length to provide a moving space for the force receiving part.

[0012] As an improvement of the above scheme, the valve core is provided with an annular functional area corresponding to the communication hole, and the annular functional area is provided with a passage hole and a blocking part for communication and isolation between the breathing cavity and the external cavity, respectively.

[0013] As an improvement of the above scheme, the valve core is provided with at least two passage holes, and the aperture of at least one passage hole is different from the aperture of another passage hole.

[0014] As an improvement of the above scheme, the maximum opening of the window is larger than the isolation component, and the isolation component is installed in the isolation cavity through the window.

[0015] As an improvement of the above scheme, the valve core is arranged in the actuating ring, the inner wall of the actuating ring is provided with a synchronization groove, the outer side wall of the valve core is provided with a synchronization rib matched with the synchronization groove, and the valve core and the actuating ring move synchronously through the matching between the synchronization groove and the synchronization rib.

[0016] Alternatively, the valve core is arranged in the actuating ring, an outer side wall of the valve core is provided with a synchronous groove, an inner wall of the actuating ring is provided with a synchronous convex rib matched with the synchronous groove, and the valve core and the actuating ring are synchronously moved through matching between the synchronous groove and the synchronous convex rib.

[0017] As an improvement of the above scheme, the inner wall of the actuating ring is provided with a positioning groove, the outer side wall of the valve core is provided with a positioning part matched with the positioning groove, and the relative position relationship between the channel hole and the actuating ring is determined through matching of the positioning part and the positioning groove, so that the active feedback part and the fixed buckle part are just buckled when the channel hole or the blocking part is docked with the communication hole.

[0018] As an improvement of the above scheme, the isolation assembly further comprises a protective shell, the protective shell is sleeved outside the isolation cavity to prevent the valve core or the actuating ring from being separated from the isolation cavity, and specifically, the protective shell cooperates with the top surface and the bottom surface of the isolation cavity to form a closed space, and the valve core and the actuating ring are limited in the closed space.

[0019] As an improvement of the above scheme, the protective shell is provided with an inner bottom edge, the inner bottom edge is provided with a connecting hole for fixed connection with the actuating ring, and the actuating ring is driven to rotate by rotating the protective shell.

[0020] As an improvement of the above scheme, the active feedback part comprises a protrusion arranged on the actuating ring, and the fixed buckle part comprises a clamping hole arranged on the isolation cavity, and more specifically, the clamping hole is arranged at the top edge or the bottom edge of the window.

[0021] As an improvement of the above scheme, the protective shell is provided with a connecting hole, and the protective shell and the actuating ring are fixedly connected by inserting the protrusion into the connecting hole.

[0022] As an improvement of the above scheme, the clamping hole is protruded relative to the movement track of the active feedback part, so as to increase the resistance when the active feedback part is buckled into the clamping hole.

[0023] Alternatively, the fixed buckle part comprises clamping holes arranged at two side walls of the window, and the active feedback part comprises clamping blocks arranged on the side surface of the actuating ring and extending along the circumference.

[0024] The utility model also provides a closed sputum suction tube, including above -mentioned breathing connector and sputum suction subassembly, sputum suction subassembly includes with the outer connected cavity of breathing connector is docked protection sleeve, is located in the protection sleeve and is drawn to the catheter, and negative pressure connector.

[0025] When the passage hole of the valve core of the breathing connector is switched to communicate with the communication hole, the catheter can pass through the passage hole to extend into the breathing cavity and enter the artificial airway connected with the breathing cavity.

[0026] The utility model has the advantages of:

[0027] The utility model discloses a breathing connector, including breathing cavity, isolation cavity, isolation subassembly and external cavity, the both ends of isolation cavity are equipped with communication hole respectively, to communicate external cavity and breathing cavity respectively, and the communication or isolation state between communication hole can be switched through operating isolation subassembly, the breathing connector includes operation feedback mechanism, and operation feedback mechanism can provide operation feedback when communication hole switches to communication or isolation state.

[0028] Therefore, the operation feedback provided by the operation feedback mechanism can determine the state between the breathing cavity and the external cavity in time, help nursing staff to master the operation strength when switching the communication state between the breathing connector and the external cavity, and prevent the operation from being insufficient or excessive.

[0029] Meanwhile, the operation feedback mechanism can include a fixed buckle part and an active feedback part, and the operation feedback mechanism provides operation feedback through the engagement of the fixed buckle part and the active feedback part. The design of the buckle can lock the communication or isolation state between the breathing cavity and the external cavity.

[0030] Correspondingly, the utility model discloses a sputum suction tube using the above-mentioned breathing connector, which can easily and safely realize the access and isolation of the suction catheter, and can prevent the isolation subassembly from being accidentally opened or closed, thereby maintaining the suction catheter access port in the open or closed state. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the three-dimensional structure schematic diagram of the breathing connector of the utility model;

[0032] Figure 2 It is the structure exploded schematic diagram of the breathing connector of the utility model;

[0033] Figure 3 It is the structure exploded schematic diagram of the isolation subassembly of the breathing connector of the utility model;

[0034] Figure 4 It is the structure schematic diagram of the fixed buckle part and the active feedback part of the breathing connector of the utility model;

[0035] Figure 5 It is another structure schematic diagram of the fixed buckle part and the active feedback part of the breathing connector of the utility model;

[0036] Figure 6 is another structure schematic view of the fixed buckle part and the active feedback part of the breathing connector of the utility model;

[0037] Figure 7 is a cross-sectional structure schematic view of the closed sputum suction tube of the utility model. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in further detail below in combination with the drawings.

[0039] Referring to Figure 1 , Figure 2 and Figure 3 , the embodiment of the utility model provides a breathing connector, including breathing cavity 1, isolation cavity 2, isolation assembly arranged in the isolation cavity 2 and external cavity 3 for connecting external devices, the top and bottom of the isolation cavity 2 are provided with communication holes respectively to communicate the external cavity 3 and the breathing cavity 1 respectively,

[0040] Among them, the isolation assembly includes valve core 4 and actuating ring 5 for driving the rotation of the valve core 4, to switch the communication or isolation state between the two communication holes by rotating the actuating ring 5;

[0041] The actuating ring 5 is provided with a force receiving part 51 for receiving external driving force, and the side wall of the isolation cavity 2 is provided with a window 22 of a predetermined length to provide the movement space of the force receiving part 51;

[0042] The window 22 is provided with a fixed buckle part 23, and the force receiving part 51 is provided with an active feedback part, such as a lug 52, for engaging the fixed buckle part 23, and the engagement of the fixed buckle 23 and the active feedback part provides tactile or sound feedback for determining the communication or isolation state between the communication holes.

[0043] Among them, the fixed buckle part and the active feedback part constitute the operation feedback mechanism of the breathing connector, which can provide operation feedback when the communication holes are switched to the communication or isolation state. The operation feedback includes force feedback or sound feedback. The force feedback can include operation resistance change, such as increase or decrease of operation resistance. The sound feedback can include, for example, the "click" sound generated when the common buckle structure is engaged.

[0044] Specifically, referring to Figure 3 , the valve core 4 is provided with an annular functional area corresponding to the communication hole, and the annular functional area is provided with at least a through channel hole 41 and a blocking part 42 penetrating the valve core, to be used for communication and isolation between the breathing cavity 1 and the external cavity 3 respectively.

[0045] Preferably, the passage hole 41 of different aperture can be added to enhance the scope of application of the breathing connector, so as to facilitate the adaptation of the catheter or other breathing operation device of different aperture. Specifically, the annular functional area of the valve core can be provided with at least two passage holes, and the aperture of at least one passage hole is different from that of another passage hole.

[0046] Referring to Figure 1 , the breathing cavity 1 can be provided with a breathing machine interface 11 for docking the breathing machine pipeline, a medicine adding interface 12 for drug administration, and a tracheal connector 13 for connecting the artificial airway. The external cavity 3 is preferably provided with a cleaning interface 31 for connecting the cleaning tube.

[0047] Preferably, as Figure 3 shown, the periphery of the blocking part 42 can be provided with a surrounding edge 43 for docking the communication hole, so as to enhance the sealing performance of the valve core. Preferably, the periphery of the passage hole 41 is also provided with the surrounding edge 43. The surrounding edge 43 can prevent air leakage of the breathing connector through the isolation cavity, for example, prevent external air from entering the breathing cavity 1 or the external cavity 3 through the isolation cavity 2.

[0048] In order to facilitate the installation and replacement of the isolation assembly, the size of the largest opening of the window 22 is larger than that of the isolation assembly, so that the isolation assembly can be installed in the isolation cavity 2 through the window 22. Preferably, the main body of the isolation cavity 2 is a cylindrical shell, and the opening range of the window 22 is 150-210°, more preferably 160-190°.

[0049] Further, the valve core 4 is arranged in the actuating ring 5, as Figure 3 shown, the inner wall of the actuating ring 5 is provided with a synchronous groove 53 for synchronously driving the rotation of the valve core 4, and the outer side wall of the valve core 4 is provided with a synchronous convex rib 44 matched with the synchronous groove 53, so as to be inserted into the synchronous groove 53, thereby limiting the relative movement between the actuating ring 5 and the valve core 4, so that when the actuating ring 5 is rotated, the valve core 4 will also be synchronously rotated.

[0050] As Figure 3 shown, the inner wall of the actuating ring 5 can be provided with a positioning groove 54, and the outer side wall of the valve core 4 is provided with a positioning part 45 matched with the positioning groove 54, which is inserted into the positioning groove 54, so as to determine the relative position relationship between the passage hole 41 and the active feedback part 52, so that when the passage hole 41 or the blocking part 42 is docked with the communication hole, the active feedback part is just clamped with the fixed buckle part 23.

[0051] For the design of the positioning groove 54, the width of the positioning groove 54 can be designed to be smaller than the synchronous rib 44, so that the operator cannot mistakenly put the valve core 4 into the actuating ring 5. Alternatively, the depth of the positioning groove 54 is smaller than the height of the synchronous rib 44, and correspondingly, the height of the positioning part 45 matches the depth of the positioning groove 54. When the synchronous rib 44 instead of the positioning part 45 is inserted into the positioning groove 54, the valve core 4 cannot be completely fitted into the actuating ring 5 because the synchronous rib 44 cannot be completely inserted into the positioning groove 54.

[0052] The synchronous groove and the synchronous rib constitute a synchronous movement mechanism between the valve core and the actuating ring, and the positioning groove and the positioning part constitute a positioning mechanism between the valve core and the actuating ring. Obviously, some positioning grooves and positioning parts can also function as synchronous grooves and synchronous ribs, and asymmetrically distributed synchronous grooves and synchronous ribs can also function as positioning grooves and positioning parts. Therefore, in some embodiments, there can be only positioning grooves and positioning parts without synchronous grooves and synchronous ribs, or only synchronous grooves and synchronous ribs without positioning grooves and positioning parts, or positioning grooves and positioning parts simultaneously function as synchronous grooves and synchronous ribs.

[0053] In some embodiments, the positions of the synchronous groove and the synchronous rib can be interchanged. For example, the synchronous groove can be provided on the outer side wall of the valve core, and correspondingly, the synchronous rib can be provided on the inner wall of the actuating ring. Similarly, the positions of the positioning groove and the positioning part can also be interchanged. For example, the positioning groove is located on the outer side wall of the valve core, and the positioning part can be provided on the inner wall of the actuating ring.

[0054] In order to keep the isolation assembly in the isolation cavity 2, the isolation assembly further comprises a protective shell 6, which is sleeved outside the isolation cavity 2 to close the window 22, thereby preventing the isolation assembly from being separated from the isolation cavity.

[0055] In order to maintain that the actuating ring 5 can be driven by the operator, the protective shell 6 is provided with an inner bottom edge 61, which is provided with a connecting hole 62, and the actuating ring 5 is provided with a connecting piece such as the protrusion 52, which can be inserted into the connecting hole 62 to fixedly connect the protective shell 6 and the actuating ring 5, so that the actuating ring 5 can be driven to rotate by rotating the protective shell 6.

[0056] Referring to Figure 4 The fixed buckle part 23 is provided with a first buckle hole 24, and is slightly raised relative to the movement track of the protrusion 52 to increase the resistance when the protrusion 52 is buckled into the first buckle hole 24, thereby providing obvious resistance feedback to the operator.

[0057] Preferably, the fixed buckle part 23 can be arranged along the edge of the window 22, as shown inFigure 4 The fixed buckle portion 23 is provided on the side of the window 22 near the connector of the actuating ring 5, while the protrusion 52 is cylindrical to fit into the drive hole 62. Obviously, in this embodiment, the protrusion 52 of the actuating ring serves as both an active feedback portion for coupling with the fixed buckle portion and a connector for secure connection with the protective shell, but the present invention is not limited to this. In other embodiments of the present invention, the active feedback portion and the connector may not be identical.

[0058] like Figure 5 As shown, in another embodiment of the respiratory connector of the present invention, the fixed buckle portion 23 is provided on the side of the window 22 facing away from the connection member of the actuation ring 5. The active feedback portion includes a feedback rib 55, and the fixed buckle portion includes a second bayonet 25. The feedback rib 55 engages with the second bayonet 25 to provide operational feedback to the operator. In this embodiment, the active feedback portion does not include the protrusion 52; the protrusion 52 serves only as a connection member for fixed connection with the protective shell.

[0059] In another embodiment of the present invention, see Figure 6 , the fixed buckle portion 23 can be arranged on both sides of the circumference of the window 22, and the fixed buckle portion 23 is provided with two third bayonet holes 26 for the active feedback portion to buckle in, and the active feedback portion includes a block 56 provided on the side of the actuating ring and extending along its circumference. There is a block at each end of the side of the actuating ring. Preferably, the opening of the third bayonet hole 26 is larger inside and smaller outside, for example, in the shape of Ω. Correspondingly, the shape of the block 56 is adapted to the second bayonet hole 232. In this embodiment, the active feedback portion does not include the protrusion 52, and the protrusion 52 only serves as a connector for fixed connection with the protective shell.

[0060] It is understood that the active feedback portion and the fixed snap portion cooperate to achieve the objectives of the present invention, and their specific locations are not limited to those described in the above embodiments. In one embodiment, the active feedback portion may be located in the valve core or the protective shell. In another embodiment, the active feedback portion may be located in the isolation chamber, while the fixed snap portion may be located in the isolation assembly, such as the actuating ring.

[0061] See also Figure 7 The embodiment of the present utility model further discloses a closed sputum suction tube 200, comprising a respiratory connector 201 and a sputum suction assembly of the present invention, wherein the sputum suction assembly comprises a protective sleeve 202 docked with the external cavity of the respiratory connector, a suction catheter 203 disposed in the protective sleeve, and a negative pressure connector 204;

[0062] When the passage hole of the valve core of the breathing connector is switched to communicate with the corresponding communication hole, the catheter 203 passes through the passage hole to enter the breathing cavity of the breathing connector and the artificial airway connected with the breathing cavity. The breathing connector 201 can adopt the corresponding structure shown in Figures 1-6

[0063] In the context of the present application, a technical feature without a specific number can refer to one, two or more of the technical features. Unless theoretically impossible or obviously contradictory to the context, the meaning of "or" is the same as "and / or". For example, "A or B or C" can include "A", "B", "C", "A and B", "A and C", "B and C", "A and B and C".

[0064] The above is the preferred embodiment of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.​

Claims

1. A breathing connector, characterized in that, The breathing connector comprises a breathing cavity, an isolation cavity, an isolation assembly arranged in the isolation cavity, and an external cavity, the isolation cavity is provided with a communication hole to respectively communicate the external cavity and the breathing cavity, The isolation assembly is switched between the communication and isolation states of the communication hole by operation; The breathing connector comprises an operation feedback mechanism, which can provide operation feedback when the communication hole is switched between the communication and isolation states; The operation feedback mechanism comprises a fixed buckle part and an active feedback part, and the operation feedback mechanism provides operation feedback through the engagement of the fixed buckle part and the active feedback part.

2. The breathing connector of claim 1, wherein, The isolation assembly comprises a valve core and an actuating ring for driving the valve core to move.

3. The breathing connector of claim 2, wherein, The valve core is provided with an annular functional area corresponding to the communication hole, and the annular functional area is provided with a passage hole for communicating the breathing cavity and the external cavity and a blocking part for isolating the breathing cavity and the external cavity.

4. The breathing connector of claim 3, wherein, The valve core is provided with at least two passage holes, and the aperture of at least one passage hole is different from that of another passage hole.

5. The breathing connector of claim 2, wherein, The isolation assembly further comprises a protective shell, which is sleeved outside the isolation cavity to prevent the valve core or the actuating ring from being separated from the isolation cavity.

6. The breathing connector of claim 5, wherein, The active feedback part comprises a protrusion arranged on the actuating ring, and the fixed buckle part comprises a bayonet arranged on the isolation cavity.

7. The breathing connector of claim 6, wherein, The protective shell is fixedly connected with the actuating ring by inserting the protrusion into the connecting hole of the protective shell.

8. The breathing connector of claim 2, wherein, The actuating ring is provided with a force receiving part, and the side wall of the isolation cavity is provided with a window with a predetermined length, which provides a moving space for the force receiving part.

9. The breathing connector of claim 8, wherein, The fixed buckle part comprises a bayonet arranged at the side wall of the window, and the active feedback part comprises a clamping block arranged at the side surface of the actuating ring.

10. A closed suction tube, characterized in that The breathing connector comprises a breathing connector and a sputum suction assembly, the sputum suction assembly comprises a protective sleeve connected with the external cavity of the breathing connector, a suction conduit arranged in the protective sleeve, and a negative pressure connector.

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