Intubation tube connector and closed sputum suction tube

Abstract

The utility model discloses a cannula joint and a closed sputum suction catheter, the cannula joint comprises a joint main body and a connecting plug, one end of the connecting plug is provided with an external connection port used for being in butt joint with an external pipeline, the other end of the connecting plug is provided with a connecting pipe used for being communicated with the joint main body, and the joint main body is provided with an access pipe for the inserting of the connecting pipe; wherein a locking connection block is arranged on the side wall of the inserting connection pipe, a locking channel is formed in the inner side wall of the connecting-in pipe, the locking channel comprises an inserting channel allowing the locking connection block to be inserted and a rotating channel allowing the locking connection block to move in the circumferential direction, and the locking connection block enters the rotating channel along the inserting channel; the locking block is provided with a buckling part, a feedback part used for hindering movement of the buckling part is arranged at the preset position of the rotating channel, and movement of the locking block is hindered through combination or contact of the buckling part and the feedback part. According to the utility model, the butt joint is convenient and firm, and accidental loosening can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an intubation connector and a closed suction catheter using the intubation connector. Background Technology

[0002] In clinical practice, patients experiencing difficulty breathing due to an inability to expectorate or cough require manual suctioning. Correspondingly, tubing and equipment need to be connected to the patient's breathing mask via connectors. However, currently used tubing connections typically employ an interference fit, which can easily lead to loosening. Utility Model Content

[0003] The technical problem to be solved by this utility model embodiment is to provide a tube connector that is easy and secure to connect and can prevent accidental loosening.

[0004] The technical problem to be solved by this utility model embodiment is to provide a sealed suction tube that is easy and secure to connect, and does not affect the use of the suction catheter.

[0005] To solve the above-mentioned technical problems, this utility model provides a cannula connector, including a connector body and a cannula. One end of the cannula is provided with an external port for connecting to an external pipeline, and the other end is provided with a cannula for connecting to the connector body. The connector body is provided with an access tube for inserting the cannula.

[0006] The insertion tube has a locking block on its side wall and a locking channel on its inner side wall. The locking channel includes an insertion channel for inserting the locking block and a rotation channel for circumferential movement of the locking block. The locking block enters the rotation channel along the insertion channel.

[0007] The locking block is provided with a latching part, and a feedback part is provided at a preset position of the rotating channel to prevent the movement of the latching part, so that the movement of the locking block is prevented by the combination or contact between the latching part and the feedback part.

[0008] As an improvement to the above solution, the top surface of the buckle part is an arc-shaped concave surface, and the feedback part is a protrusion that matches the arc-shaped concave surface.

[0009] As an improvement to the above solution, the feedback part is provided with guide slopes on both sides, and the buckle part is provided with an inclined surface corresponding to the guide slopes.

[0010] As an improvement to the above solution, the outer wall of the access tube is provided with an observation port corresponding to the rotating channel to expose the rotating channel.

[0011] As an improvement to the above solution, the connector body is provided with a main port and a connecting channel. The main port is connected to the access pipe through the connecting channel. The diameter of the connecting channel gradually decreases from the access pipe to the main port.

[0012] As an improvement to the above solution, the connector body is also provided with an auxiliary pipe that communicates with the main port, and the auxiliary pipe is inclined relative to the access pipe.

[0013] As an improvement to the above solution, the side wall of the connector is also provided with a side pipe for external pipe connection, and the side pipe is connected to the connector.

[0014] A closed suction catheter includes a suction assembly, the aforementioned insertion connector and adapter, wherein the suction assembly includes a protective sleeve and a suction tubing disposed within the protective sleeve;

[0015] One port of the adapter is inserted into the external port, and the other port is connected to the sleeve port of the protective sleeve.

[0016] The suction catheter passes sequentially through the adapter, insertion tube, and access tube.

[0017] As an improvement to the above solution, the two end sidewalls of the adapter are provided with deformation inward grooves to provide radial inward deformation space to the two end outer sidewalls of the adapter.

[0018] As an improvement to the above solution, the connector is provided with a sealing element, the sealing element is provided with a conduit hole adapted to the suction conduit, and the side wall of the suction conduit is provided with a concave tactile feedback groove, so that when the tactile feedback groove passes through the conduit hole, it comes into contact with the sealing element to form tactile feedback.

[0019] Implementing this utility model has the following beneficial effects:

[0020] This utility model discloses a cannula connector, including a connector body and a cannula. One end of the cannula is provided with an external port, and the other end is provided with a cannula for connecting to the connector body. The connector body is provided with an access tube for inserting the cannula. Therefore, the connector body can be used to make a stable connection with a fixed pipeline. For pipelines that need to be replaced relatively frequently, quick docking can be achieved by inserting the cannula into the access tube.

[0021] Furthermore, the side wall of the connector is provided with a locking block, and the inner side wall of the access tube is provided with a locking channel. The locking channel includes an insertion channel for inserting the locking block and a rotation channel for circumferential movement of the locking block. The locking block enters the rotation channel along the insertion channel. Therefore, after the connector is inserted into the access tube through the locking block along the insertion channel, the locking block can be completely disengaged from the insertion channel and enter the rotation channel by twisting the connector, thereby ensuring that the connector is difficult to axially disengage from the access tube.

[0022] The locking block is provided with a latching part, and a feedback part is provided at a preset position of the rotating channel to prevent the movement of the latching part. By engaging or contacting the latching part and the feedback part, the movement of the locking block is prevented, thereby preventing the locking block from accidentally returning to the insertion channel and becoming loose. At the same time, there is a certain resistance between the engagement or contact between the latching part and the feedback part, so that the user can be well informed by touch that the locking block has rotated to the preset secure locking position.

[0023] Accordingly, this utility model also discloses a closed suction catheter using the above-mentioned insertion connector, which is convenient to connect and does not affect the use of the suction catheter. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the insertion connector of this utility model;

[0025] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure;

[0026] Figure 3 This is an exploded view of the structure of the insertion connector of this utility model;

[0027] Figure 4 This is an exploded view of another embodiment of the insertion connector of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the closed suction tube of this utility model;

[0029] Figure 6 This is a partial cross-sectional schematic diagram of the closed suction tube of this utility model. Detailed Implementation

[0030] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0031] See Figure 1 , 2In embodiment 3, this utility model provides a cannula connector, including a connector body 1 and a cannula 2. One end of the cannula 2 is provided with an external port 21 for connecting to an external pipeline, and the other end is provided with a cannula 22 for connecting to the connector body 1. The connector body 1 is provided with an access tube 11 for inserting the cannula 22.

[0032] The insertion tube 22 has a locking block 3 on its side wall and a locking channel on its inner side wall. The locking channel includes an insertion channel 111 for inserting the locking block 3 and a rotating channel 112 for circumferential movement of the locking block 3. The locking block 3 enters the rotating channel 112 along the insertion channel 111.

[0033] The locking block 3 is provided with a latching part, and the rotating channel 112 is provided with a feedback part at a preset position to prevent the movement of the latching part, so that the movement of the locking block is prevented by the combination or contact between the latching part and the feedback part.

[0034] Specifically, the top surface of the latching part is an arc-shaped concave surface 3a, and the feedback part is a protrusion 113a that matches the arc-shaped concave surface 3a. Therefore, when the protrusion 113a rotates to the feedback part, it will collide with the feedback part and provide the operator with obvious resistance feedback. Accordingly, the operator can increase the rotation force so that the protrusion 113a can be engaged with the arc-shaped concave surface 3a through slight deformation between the latching part and the feedback part, thereby completing the connection and locking between the insertion tube 22 and the access tube 11, and providing tactile feedback and audible feedback of obvious resistance changes.

[0035] See Figure 4 In addition to the embodiments of the latching part and the feedback part, another embodiment is provided, wherein the feedback part has guide slopes 113b on both sides, and the top of the latching part has an inclined surface 3b corresponding to the guide slopes, such as... Figure 4 Therefore, when the inclined surface 3b rotates to the feedback section, the top surface of the latching part moves along the guide inclined surface 113b. As it moves along one side of the guide inclined surface 113b, the pressure between the top of the latching part and the guide inclined surface 113b increases, resulting in a noticeable resistance. Correspondingly, when the latching part passes the feedback section and moves to the other side of the guide inclined surface 113b, the pressure between the top of the latching part and the guide inclined surface 113b gradually decreases. This completes the connection locking between the insertion tube 22 and the access tube 11, providing tactile feedback with a noticeable change in resistance.

[0036] Furthermore, to provide the operator with an additional means to confirm that the connection between the connector 22 and the access tube 11 is locked, an observation port 13 corresponding to the rotating channel 112 is provided on the outer wall of the access tube 11 to expose the rotating channel 112. Therefore, the operator can observe the position between the latching part and the feedback part through the observation port 13, thereby determining whether the connection between the connector 22 and the access tube 11 is locked.

[0037] To improve the sealing between the connector 22 and the access tube 11 after insertion, the connector body 1 is provided with a main port 12 and a connecting channel 13. The main port 12 is connected to the access tube 11 through the connecting channel 13. The diameter of the connecting channel 13 gradually decreases from the access tube 11 to the main port 12. Therefore, a sealed connection can be achieved between the connector 22 and the access tube 11 through insertion and fitting.

[0038] On the other hand, in order to improve the functionality of the connector body 1, the connector body 1 is also provided with an auxiliary pipe 14 that communicates with the main port 12. The auxiliary pipe 14 is inclined relative to the access pipe 11, so the external function pipeline, such as the dosing pipe, is also provided.

[0039] Furthermore, the side wall of the connector 2 is also provided with a side tube 23 for external pipeline. The side tube 23 is connected to the connector tube 22. Therefore, the flushing tube can clean the inside of the connector 2 and the connector body 1 by connecting to the side tube 23.

[0040] See Figure 5 and 6 This utility model also discloses a closed suction tube, characterized in that it includes a suction assembly 4, an insertion connector 5, and an adapter 6. The suction assembly includes a protective sleeve 41 and a suction catheter 42 disposed within the protective sleeve 41. One port of the adapter 6 is inserted into the external port 21, and the other port is connected to the sleeve port 411 of the protective sleeve 41. The suction catheter 42 passes sequentially through the adapter 6, the insertion connector 22, and the access tube 11, and finally extends out from the main port 12.

[0041] The adapter 6 has deformation inward grooves 61 on both sides of its sidewalls to provide radial inward deformation space to the outer sidewalls of both sides of the adapter 6, thereby facilitating the insertion of the socket port 411 and the external port 21. The inner sidewall of the deformation inward groove 61 and the socket port 411 are provided with toothed protrusions 8 for mutual engagement to enhance the locking force.

[0042] On the other hand, the connector 2 is provided with a sealing element 7, which has a catheter hole 71 adapted to the suction catheter 42. The side wall of the suction catheter 42 is provided with a concave tactile feedback groove 421, so that when the tactile feedback groove 421 passes through the catheter hole 71, it contacts the sealing element 7 to form tactile feedback. Therefore, when the suction catheter 42 completes the suction treatment, the part inserted into the patient should not be excessively withdrawn during the withdrawal of the suction catheter 42. Therefore, the position of the tactile feedback groove on the suction catheter 42 can be preset, so that the user can be reminded in advance to stop withdrawing the suction catheter 42, thereby avoiding the user excessively withdrawing the suction catheter 42 and causing contaminants to spread inside the protective sleeve 41 or other parts. The sealing element 7 is preferably a sealing ring.

[0043] It should be noted that the structure of the cannula connector can be adopted. Figures 1-4 The corresponding structure is described above, so the structural principle of the insertion connector will not be elaborated here.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A cannula connector, characterized in that, It includes a connector body and a plug connector. One end of the plug connector is provided with an external port for connecting to an external pipeline, and the other end is provided with a plug tube for connecting to the connector body. The connector body is provided with an access tube for inserting the plug tube. The insertion tube has a locking block on its side wall and a locking channel on its inner side wall. The locking channel includes an insertion channel for inserting the locking block and a rotation channel for circumferential movement of the locking block. The locking block enters the rotation channel along the insertion channel. The locking block is provided with a latching part, and a feedback part is provided at a preset position of the rotating channel to prevent the movement of the latching part, so that the movement of the locking block is prevented by the combination or contact between the latching part and the feedback part.

2. The insertion connector as described in claim 1, characterized in that, The top surface of the buckle part is an arc-shaped concave surface, and the feedback part is a protrusion that is adapted to the arc-shaped concave surface.

3. The insertion connector as described in claim 1, characterized in that, The feedback part has guide slopes on both sides, and the buckle part has an inclined surface corresponding to the guide slopes.

4. The cannula connector as described in claim 1, characterized in that, The outer wall of the access tube has an observation port corresponding to the rotating channel to expose the rotating channel.

5. The insertion connector as described in claim 4, characterized in that, The connector body is provided with a main port and a connecting channel. The main port is connected to the access pipe through the connecting channel. The diameter of the connecting channel gradually decreases from the access pipe to the main port.

6. The cannula connector as described in claim 5, characterized in that, The connector body is also provided with an auxiliary pipe that communicates with the main port, and the auxiliary pipe is inclined relative to the access pipe.

7. The insertion connector as described in claim 1, characterized in that, The side wall of the connector is also provided with a side pipe for external pipe connection, and the side pipe is connected to the connector.

8. A closed suction catheter, characterized in that, Includes a suction assembly, a cannula connector and an adapter as described in any one of claims 1-7, wherein the suction assembly includes a protective sleeve and a suction catheter disposed within the protective sleeve; One port of the adapter is inserted into the external port, and the other port is connected to the sleeve port of the protective sleeve. The suction catheter passes sequentially through the adapter, insertion tube, and access tube.

9. The closed suction catheter as described in claim 8, characterized in that, The adapter has deformation grooves on both sides to provide radially inward deformation space to the outer sides of both ends of the adapter.

10. The closed suction catheter as described in claim 8, characterized in that, The connector is provided with a sealing element, and the sealing element has a conduit hole that is adapted to the suction conduit. The side wall of the suction conduit is provided with a concave tactile feedback groove, so that when the tactile feedback groove passes through the conduit hole, it comes into contact with the sealing element to form tactile feedback.

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