Long-term indwelling tracheal cannula and medical device

Abstract

The application discloses a long-term retention tracheal cannula and a medical instrument, wherein the long-term retention tracheal cannula comprises a pipe body, an interface structure and a separation layer structure; the pipe body is internally provided with an internal contraction opening; the interface structure is mounted on the pipe body and is communicated with the inside of the pipe body; the separation layer structure comprises a blocking part and a separation layer part; the separation layer part is mounted in the pipe body; the blocking part is mounted between the internal contraction opening and the separation layer part and partially extends into the interface structure; and the blocking part is in abutment with the internal contraction opening. Through the abutment between the blocking part and the internal contraction opening, the application achieves blocking and avoids foreign matters from entering the trachea. In the case that the blocking part does not block the internal contraction opening, the patient can speak, and the foreign matters are connected by the separation layer part, thereby facilitating the prompt of medical staff and the cleaning of foreign matters, improving the processing efficiency and the safety of the patient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a long-term tracheal cannula and a medical device. BACKGROUND

[0002] The existing tracheal cannula is mainly divided into cannula with bladder and cannula without bladder, the difference is whether the air bag is used to block the trachea, the cannula with bladder is mainly used in operating room and intensive care unit, with the opening of the air bag, good blocking can be achieved, so as to avoid foreign matter entering the trachea, but at this time it is impossible to talk, if the air bag intercepts foreign matter from the oral cavity, it is more troublesome to clean.

[0003] The above content is only used to assist in understanding the technical scheme of the present application, and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The main purpose of the present application is to provide a long-term tracheal cannula, which enables the patient to talk when foreign matter enters the trachea, and avoids foreign matter invading the trachea, and facilitates the cleaning of foreign matter.

[0005] To achieve the above purpose, the long-term tracheal cannula provided by the present application comprises:

[0006] The pipe body is provided with an inner contraction opening;

[0007] The interface structure is installed on the pipe body and communicates with the inside of the pipe body; and

[0008] The separation layer structure comprises a blocking part and a separation layer part, the separation layer part is installed in the pipe body, the blocking part is installed between the inner contraction opening and the separation layer part, and the blocking part partially extends into the interface structure, and the blocking part abuts against the inner contraction opening.

[0009] Optionally, the separation layer part is a layered structure, and the layered structure supports the blocking part.

[0010] Optionally, the separation layer part comprises a supporting layer and a receiving layer, the supporting layer is provided with an extension end, the extension end is connected with the inner wall of the pipe body, and the edge of the receiving layer is connected with the inner wall of the pipe body.

[0011] Optionally, the supporting layer is located between the inner contraction opening and the receiving layer, and the supporting layer supports the blocking part.

[0012] Optionally, a first through hole is arranged in the middle of the supporting layer, a protrusion is arranged on the side surface of the middle of the receiving layer close to the supporting layer, a second through hole is arranged on the receiving layer, and the second through hole penetrates through the receiving layer and the protrusion in the middle of the receiving layer.

[0013] Optionally, the blocking part comprises a blocking piece and an inflation tube, the blocking piece is installed between the inner retracted opening and the support layer, the blocking piece abuts against the inner retracted opening, the blocking piece abuts against the support layer, one end of the inflation tube is connected with the blocking piece, and the other end extends into the interface structure.

[0014] Optionally, the blocking piece is an expansion piece, and the blocking piece can pass through the first through hole in a contracted state.

[0015] Optionally, one end of the inflation tube, which is away from the blocking piece, passes through the first through hole and extends into the interface structure.

[0016] Optionally, the inner retracted opening is a funnel structure.

[0017] The application further provides a medical device, which comprises the long-term retention tracheal cannula.

[0018] The application achieves blocking by the abutment of the blocking part and the inner retracted opening, avoids foreign matters from entering the trachea, enables the patient to speak when the blocking part does not block the inner retracted opening, and connects the foreign matters by the separation layer part, thereby facilitating the prompt of medical staff and the cleaning of foreign matters, improving the processing efficiency and the safety of the patient, and enabling the medical staff to remove the foreign matters on the separation layer part through the interface structure, simplifying the removal operation of the foreign matters in the tracheal cannula and reducing the cleaning difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor.

[0020] Figure 1 FIG. 1 is a structural schematic diagram of an embodiment of the long-term retention tracheal cannula of the application;

[0021] Figure 2 FIG. 2 is a right view structural schematic diagram of an embodiment of the long-term retention tracheal cannula of the application;

[0022] Figure 3 FIG. 3 is a sectional view of A-A in FIG. 1. Figure 2

[0023] Explanation of reference signs:

[0024]

[0025] ​The objectives, functional features and advantages of the present application will be further illustrated in conjunction with the embodiments with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0027] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the accompanying drawings), and if the certain posture changes, the directionality indications also change accordingly.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In addition, the description such as "first", "second", etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions, for example, "A and / or B" includes A solution, or B solution, or A and B solutions at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0030] The present application provides a long-term indwelling tracheal cannula 100.

[0031] Reference Figures 1 to 3 , Figure 1 is a structural schematic diagram of an embodiment of the long-term indwelling tracheal cannula of the present application; Figure 2 is a right view structural schematic diagram of an embodiment of the long-term indwelling tracheal cannula of the present application;Figure 3 for Figure 2 Sectional view at point AA.

[0032] In this embodiment of the invention, the long-term indwelling endotracheal tube 100; such as Figures 1 to 3 As shown, it includes:

[0033] Pipe body 10, an inner shrinkage 14 is provided in the pipe body 10;

[0034] An interface structure 30 is mounted on the tube body 10 and communicates with the interior of the tube body 10; and

[0035] The partition structure 20 includes a sealing part 21 and a partition part 22. The partition part 22 is installed inside the pipe body 10. The sealing part 21 is installed between the inner narrowing opening 14 and the partition part 22, and the sealing part 21 extends into the interface structure 30. The sealing part 21 abuts against the inner narrowing opening 14.

[0036] It should be noted that the tube body 10 is a multi-port tube body, and the interface structure 30 is installed on one of the interfaces of the tube body 10.

[0037] It should be noted that the tube body 10 is a silicone component, and the tube body 10 has two layers of silicone with gaps between them, which facilitates inflation and expansion, and makes it easier for the tube body 10 to contact the patient's trachea to prevent air leakage.

[0038] The technical solution of this invention achieves sealing by the contact between the sealing part 21 and the inner retraction port 14, preventing foreign objects from entering the trachea. When the sealing part 21 does not seal the inner retraction port 14, the patient can speak, and the foreign object will be connected by the partition part 22, which facilitates prompting medical staff and clearing the foreign object, improving treatment efficiency and patient safety. Medical staff can remove foreign objects from the partition part 22 through the interface structure 30, simplifying the removal operation of foreign objects in the endotracheal tube and reducing the difficulty of cleaning.

[0039] In this embodiment, the interface structure 30 includes a first connection port 33, a second connection port 34, and a baffle 31. The first connection port 33 is installed on one side of the baffle 31, and the second connection port 34 is installed on the other side of the baffle 31. The first connection port 33 extends into the tube body 10 and is connected to the tube body 10.

[0040] In this embodiment, the second connection port 34 is provided with a vent 32 that penetrates the baffle 31, the second connection port 34 and the first connection port 33, and gas can enter the interior of the pipe body 10 through the vent 32.

[0041] It should be noted that the first connecting port 33 and the second connecting port 34 are hollow columns.

[0042] It should be noted that the second connecting port 34 is provided with a threaded surface on the surface, so as to facilitate the connection of the second connecting port 34 with other instruments.

[0043] In this embodiment, by connecting the air pipe of the airflow machine on the second connecting port 34, the airflow state inside the pipe body 10 can be detected, and then it is convenient to judge whether there is sputum blocking in the patient's trachea, so as to better detect the patient's state, facilitate immediate treatment, and improve the safety of the patient.

[0044] It should be noted that a thread can be arranged on the surface of the first connecting port 33, and a threaded groove is arranged on the inner surface of one interface of the pipe body 10, so as to facilitate the sealed connection between the first connecting port 33 and the pipe body 10, ensure the smoothness of air inlet and outlet, and avoid air leakage.

[0045] It should be noted that the first connecting port 33 and the pipe body 10 can be interference fit, which can ensure the stability of the connection between the first connecting port 33 and the pipe body 10 while ensuring the sealing.

[0046] It should be noted that the baffle 31 can be a metal plate to ensure the stability of the interface structure 30.

[0047] In this embodiment, the pipe body 10 includes a pipe body 11 and an air inlet 13, the pipe body 11 is provided with an inflation cavity 12, the air inlet 13 is mounted on the pipe body 11, and the air inlet 13 communicates with the inflation cavity 12.

[0048] It should be noted that the pipe body 11 is an inflation member, which is inflated after being installed in the patient's trachea and completely adheres to the inner wall of the trachea.

[0049] In this embodiment, after the pipe body 11 is placed inside the patient's trachea, the inflation cavity 12 is inflated through the air inlet 13, so that the pipe body 11 is inflated and abuts against the patient's trachea, the tight installation of the pipe body 11 in the trachea is completed, and the inflated pipe body 11 abuts against the first connecting port 33, further increasing the stability of the connection between the first connecting port 33 and the pipe body 11.

[0050] Optionally, the separation layer 22 is a layered structure, and the layered structure supports the blocking part 21.

[0051] In the embodiment, the partition layer 22 is arranged in the pipe body 11 and fixedly connected with the pipe body 11, supports the blocking part 21, and receives foreign matters falling from the inner recess 14 to prevent the foreign matters from entering the trachea of the patient through the pipe body 11 and causing the patient to have difficulty in breathing.

[0052] Optionally, the partition layer 22 comprises a support layer 221 and a receiving layer 222, the support layer 221 is provided with an extending end connected with the inner wall of the pipe body 10, and the edge of the receiving layer 222 is connected with the inner wall of the pipe body 10.

[0053] In the embodiment, the support layer 221 and the receiving layer 222 are in a layered structure, and the support layer 221 and the receiving layer 222 are arranged in a spaced manner, after the extending end of the support layer 221 is connected with the inner wall of the pipe body 10, the foreign matters falling from the inner recess 14 fall through the gap between the support layer 221 and the pipe body 11, are supported by the receiving layer 222, and thus the foreign matters enter the trachea along the pipe body, thereby preventing the foreign matters.

[0054] In the embodiment, the blocking part 21 is not in abutment with the inner recess 14, and when the blocking part 21 is in abutment with the support layer 221, the foreign matters falling from the inner recess 14 fall through the gap between the support layer 221 and the inner wall of the pipe body 10 due to the blocking of the blocking part 21 and the support layer 221, and thus fall into the receiving layer 222 and are received by the receiving layer 222, thereby preventing the foreign matters from directly entering the trachea and ensuring the safety of the patient.

[0055] In the embodiment, after the receiving layer 222 receives the foreign matters, the operator can clean the foreign matters on the receiving layer 222 through the interface structure 30, thereby reducing the difficulty of cleaning the tracheal tube.

[0056] Optionally, the support layer 221 is located between the inner recess 14 and the receiving layer 222, and the support layer 221 supports the blocking part 21.

[0057] In the embodiment, the support layer 221 supports the blocking part 21, thereby facilitating the blocking part 21 to block the inner recess 14, and the blocking part 21 is in abutment with the support layer 221, thereby achieving the blocking of the support layer 221 by the blocking part 21, preventing the foreign matters from entering the second through hole through the first through hole, and ensuring the safety of the patient.

[0058] Optionally, the middle part of the support layer 221 is provided with a first through hole, the middle part of the receiving layer 222 is provided with a protrusion close to the side surface of the support layer 221, the receiving layer 222 is provided with a second through hole, and the second through hole penetrates the receiving layer 222 and the protrusion in the middle part of the receiving layer.

[0059] In the embodiment, the receiving layer 222 is provided with a protrusion, and the protrusion is arranged in the middle part of the receiving layer 222, so that the surface of the receiving layer 222 is high in the center and low around, and when the foreign matter enters the pipe body 10 through the inner neck 14, the foreign matter falls on the receiving layer 222 through the edge of the support layer 221, is limited by the receiving layer 222 and continues to fall, is concentrated and collected, is convenient for the operator to take out subsequently, and the foreign matter is prevented from entering the trachea of the patient directly through the pipe body 10, so that the safety of the patient is ensured.

[0060] In the embodiment, the middle part of the support layer 221 is provided with a first through hole, and when the plugging part 21 is inflated, the plugging part 21 can abut against the support layer 221, and the plugging part 21 is located in the middle part of the support layer 221. Due to the existence of the first through hole, the movement of the plugging part 21 on the support layer 221 is limited.

[0061] Optionally, the plugging part 21 comprises a plugging piece 211 and an inflation tube 212, the plugging piece 211 is installed between the inner neck 14 and the support layer 221, the plugging piece 211 abuts against the inner neck 14, the plugging piece 211 abuts against the support layer 221, one end of the inflation tube 212 is connected with the plugging piece 211, and the other end extends into the interface structure 30.

[0062] In the embodiment, the plugging piece 211 is an air bag. When the air bag is inflated, the inner neck 14 and the first through hole are plugged, and when the air bag is deflated, the air bag can pass through the first through hole, so that the installation of the air bag is facilitated.

[0063] In the embodiment, one end of the inflation tube 212 can pass through the first through hole and is connected with the air bag, and the other end of the inflation tube 212 extends into the interface structure 30, so that the inflation tube 212 is convenient for inflating or deflating the air bag, and the inflation or deflation of the air bag is controlled.

[0064] In the embodiment, when the sealing member 211 is installed, the sealing member 211 passes through the air hole 32 in a contracted state and enters the pipe body 11, and then the contracted sealing member 211 passes through the first through hole and is located on the side of the support layer 221 close to the inner recess 14, and meanwhile, the inflatable tube 212 is automatically laid along the installation path of the sealing member 211, thereby achieving quick installation of the sealing member 211.

[0065] It should be noted that the inflatable tube 212 is connected with an inflating device such as an inflating pump at the end away from the sealing member 211, so that gas enters the sealing member 211 through the inflatable tube 212, and then the sealing member 211 is inflated, thereby facilitating control of the sealing member 211 to seal the port of the inner recess 14 close to the support layer 221.

[0066] It should be noted that the sealing member 211 in the case of the air bag can be inflated and contracted during inflation and deflation, and can achieve complete sealing of the port of the inner recess 14 close to the support layer 221 when the air bag is inflated, thereby avoiding foreign matter entering the pipe body 11 and the patient's trachea through the gap, and improving the safety of use.

[0067] It should be noted that when the sealing member 211 no longer abuts against the inner recess 14, the two tracheas separated by the pipe body 11 can be communicated, thereby facilitating the patient to speak with the mouth open, and due to the existence of the support layer 221 and the receiving layer 222, foreign matter falling from the inner recess 14 will also pass through the gap between the support layer 221 and the pipe body 11 and be supported and accommodated by the support layer 221, thereby effectively preventing the foreign matter from being prevented during the patient's speaking with the mouth open.

[0068] Optionally, the sealing member 211 is an inflation member, and the sealing member 211 can pass through the first through hole in a contracted state.

[0069] In the embodiment, after the sealing member 211 passes through the air hole 32 and the first through hole, the sealing member 211 is installed between the support layer 221 and the inner recess 14.

[0070] Optionally, the end of the inflatable tube 212 away from the sealing member 211 passes through the first through hole and extends into the interface structure 30.

[0071] It should be noted that one end of the inflatable tube 212 extends into the air hole 32.

[0072] In the embodiment, the air bag is deflated through the one end of the inflation tube 212 extending into the air vent 32, and then the inflation and contraction of the air bag is controlled, so as to facilitate the plugging to prevent foreign matters from entering the trachea, or facilitate the patient to speak.

[0073] Optionally, the inner tapered opening 14 is a funnel structure.

[0074] In the embodiment, the inner tapered opening 14 gradually shrinks in diameter in the direction of the plugging member 211, so as to facilitate the foreign matter to move along the slope of the inner tapered opening 14 and approach the plugging member 211 when the foreign matter enters the inner tapered opening 14, and the foreign matter can fall through the gap between the support layer 221 and the pipe body 11 and be supported by the receiving layer 222 when the plugging member 211 does not abut against the inner tapered opening 14, so as to avoid the foreign matter directly entering the trachea of the patient through the pipe body 11.

[0075] In the embodiment, the inner tapered opening 14 is a funnel structure, so that the plugging member 211 can block the port of the inner tapered opening 14 close to the support layer 221 in the inflated state, and does not affect the collection of the foreign matter in the inner tapered opening 14, and the collection of the foreign matter is completed at the same time of blocking the foreign matter, so as to facilitate the subsequent centralized removal of the foreign matter, reduce the working difficulty of the operator and improve the operation efficiency.

[0076] The application further provides a medical instrument, which comprises the long-term retention tracheal cannula 100, and the specific structure of the long-term retention tracheal cannula 100 is referred to the above embodiments.

[0077] The above only describes the preferred embodiments of the application, and does not limit the patent scope of the application, and any equivalent structural transformation based on the inventive concept of the application, the contents of the specification and the drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the application.

Claims

1. A long-term indwelling endotracheal tube, characterized in that, include: The tube body has an inner constriction opening and includes a tube body. The tube body has a double-layer structure and an inflation chamber. When the tube body is installed in the patient's trachea and inflated, the tube body completely fits the inner wall of the trachea. An interface structure, wherein the interface structure is mounted on the pipe body and communicates with the interior of the pipe body; and A partition structure includes a sealing part and a partition part. The partition part is installed inside the tube body. The sealing part is installed between the inner retraction port and the partition part, and the sealing part extends into the interface structure. The sealing part abuts against the inner retraction port. The partition part includes a receiving layer and a supporting layer. An extension end is provided on the supporting layer and the extension end is connected to the inner wall of the tube body. The edge of the receiving layer is connected to the inner wall of the tube body to receive foreign objects falling from the inner retraction port. The receiving layer has a protrusion on its side near the support layer in the middle. The receiving layer has a second through hole that penetrates the receiving layer and the protrusion in the middle of the receiving layer. The sealing part does not abut against the inner opening. When the sealing part abuts against the support layer, foreign objects fall from the inner opening. Due to the obstruction of the sealing part and the support layer, the foreign objects fall from the gap between the support layer and the inner wall of the tube and then fall into the receiving layer. The inner opening has a funnel structure, and its diameter gradually narrows towards the sealing part to facilitate the collection and removal of foreign objects.

2. The long-term indwelling endotracheal tube as described in claim 1, characterized in that, The partition layer has a layered structure and supports the sealing layer.

3. The long-term indwelling endotracheal tube as described in claim 2, characterized in that, The support layer is located between the inner opening and the receiving layer, and the support layer supports the sealing part.

4. The long-term indwelling endotracheal tube as described in claim 2, characterized in that, A first through hole is provided in the middle of the support layer.

5. The long-term indwelling endotracheal tube as described in claim 4, characterized in that, The sealing part includes a sealing element and an inflation tube. The sealing element is installed between the inner opening and the support layer. The sealing element abuts against the inner opening and the support layer. One end of the inflation tube is connected to the sealing element, and the other end extends into the interface structure.

6. The long-term indwelling endotracheal tube as described in claim 5, characterized in that, The sealing element is an expansion element, which can pass through the first through hole when it is in a contracted state.

7. The long-term indwelling endotracheal tube as described in claim 5, characterized in that, The end of the inflation tube facing away from the sealing member passes through the first through hole and extends into the interface structure.

8. A medical device, characterized in that, Includes the long-term indwelling endotracheal tube as described in any one of claims 1 to 7.

Images