Trachea cannula with side holes in inner wall of catheter and capable of being connected with negative pressure suction outside

Abstract

The utility model provides a trachea cannula with side holes in the inner wall of a catheter and capable of being connected with negative pressure suction outside, and belongs to the technical field of medical instruments. Comprising a catheter, the side wall of the catheter is fixedly connected with an upper suction tube, a sputum suction tube and an inflation tube, the tail end of the catheter is connected with an air bag, the inflation tube is communicated with the air bag, a spiral cavity is formed in the wall thickness of the catheter, and a linear cavity is formed in one end of the spiral cavity; the tail end of the sputum suction tube is hermetically connected with the suction tail end opening and internally communicated with the suction tail end opening, and multiple groups of side holes are formed in the outer side wall of the catheter and communicated with the spiral cavity. The side hole and the spiral cavity are arranged and matched with a negative pressure suction machine, continuous negative pressure vacuum can be generated at the side hole, then the continuous negative pressure suction effect is achieved, it can be avoided that sputum is formed due to too much secretions in the trachea of a patient through continuous negative pressure suction, and various discomfort caused by the fact that the patient uses a sputum suction tube is further avoided; the pain of the patient caused by repeated insertion of the sputum suction tube is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an endotracheal cannula with a side hole on the inner wall of the cannula and capable of being connected to negative pressure suction on the outside. Background Art

[0002] Endotracheal intubation is a method of inserting a special endotracheal tube into the trachea or bronchus through the oral or nasal cavity and the glottis, providing the best conditions for airway patency, ventilation and oxygen supply, and airway suction. It is an important measure to rescue patients with respiratory dysfunction.

[0003] Clinically, when suctioning sputum for intubated patients, a suction tube is needed to be inserted from the endotracheal tube to the end of the endotracheal tube and then passed out. The other end of the suction tube is connected to a negative pressure suction machine for suctioning sputum. However, the suction tube usually irritates the patient, causing the patient to cough, gasp, vomit, etc., causing serious discomfort to the patient. In addition, the insertion of the suction tube will affect the patient's normal breathing and cannot be used continuously. When suctioning sputum for the patient, the suction port is too high, so that the sputum cannot be completely sucked out. The residual sputum will be stuck in the patient's trachea, causing breathing difficulties, and then the patient will continue to cough and gasp. The nursing staff needs to perform suction operations multiple times. Repeated suction operations further increase the patient's discomfort. Therefore, the present application provides a endotracheal tube with a side hole on the inner wall of the tube that can be connected to negative pressure suction on the outside to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an endotracheal cannula with a side hole on the inner wall of the cannula and the outside of which can be connected to negative pressure suction, so as to solve the problem that the existing sputum suction tube may cause stimulation to the patient and cause serious discomfort to the patient.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A tracheal intubation tube with a side hole on the inner wall of the catheter and capable of being connected to negative pressure suction on the outside, comprises a catheter, the side walls of the catheter are respectively fixedly connected with an upper suction tube, a sputum suction tube and an inflation tube, the end of the catheter is connected with an air bag, the inflation tube is communicated with the air bag, a spiral cavity is opened in the wall thickness of the catheter, a linear cavity is opened at one end of the spiral cavity, the port of the linear cavity is an opening for the suction end, the end of the sputum suction tube is sealed and connected to the suction end opening and the interiors are communicated, and a plurality of groups of side holes are opened on the outer wall of the catheter, the side holes are communicated with the spiral cavity.

[0007] Optionally, the spiral cavity is a spiral structure, the side hole is arranged on the spiral cavity and communicated with the spiral cavity, the end of the spiral cavity is located at the bottom of the airbag and the opening is the suction head end opening.

[0008] Optionally, the linear cavity is a linear structure and is communicated with the spiral cavity.

[0009] Optionally, an upper suction port is opened on the side wall of the catheter, and the upper suction port is located at the top of the airbag. The upper suction tube extends into the interior of the catheter and is connected with the upper suction port.

[0010] Optionally, an inflation port is provided on the side wall of the catheter, and the inflation port is located inside the airbag.

[0011] Optionally, the end of the inflation tube extends into the interior of the catheter and is sealed and connected to the inflation port and communicates with the interior.

[0012] Optionally, the first end of the inflation tube is connected to an inflation bag, and the inflation bag is provided with a one-way flow valve.

[0013] Optionally, two ends of the airbag are respectively sealed and connected to the outer wall of the catheter.

[0014] Optionally, the first end of the sputum suction tube is connected to a negative pressure connector.

[0015] Optionally, an air guide joint is installed at the head end of the catheter, and the air guide joint and the catheter are nestedly connected.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, by setting up side holes and spiral chambers and cooperating with a negative pressure suction machine, a continuous negative pressure vacuum can be generated at the side holes, thereby achieving a continuous negative pressure suction effect. Continuous negative pressure suction can prevent the patient's tracheal secretions from forming sputum, further avoid the patient's use of suction tubes causing various discomforts, and avoid repeated insertion of suction tubes to increase the patient's pain.

[0018] By setting the spiral cavity, the number of side holes that can be set is increased, and the side holes are evenly distributed around the catheter ring, thereby increasing the suction points and achieving a better suction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of an endotracheal tube with a side hole on the inner wall of the tube and the outside of which can be connected to negative pressure suction;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of a partial cross-section of a catheter;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0023] [reference numerals]

[0024] 1. Catheter; 2. Air guide connector; 3. Air bag; 4. Upper suction port; 5. Upper suction tube; 6. Suction tube; 7. Negative pressure connector; 8. Suction end opening; 9. Side hole; 10. Linear cavity; 11. Spiral cavity; 12. Suction head opening; 13. Inflation tube; 14. Inflation port; 15. Inflatable bag.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0026] The following is a detailed description of a tracheal tube provided by the utility model with a side hole on the inner wall of the tube and capable of being connected to negative pressure suction on the outside, in conjunction with the drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0027] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it should be within the knowledge of technicians in the relevant field to implement such features, structures or characteristics in conjunction with other embodiments.

[0028] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0029] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0030] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0031] like Figures 1 to 3 As shown, an embodiment of the utility model provides an endotracheal intubation tube with a side hole on the inner wall of the catheter that can be connected to negative pressure suction on the outside, including a catheter 1, the side walls of the catheter 1 are respectively fixedly connected with an upper suction tube 5, a sputum suction tube 6 and an inflation tube 13, the end of the catheter 1 is connected with an air bag 3, the inflation tube 13 is connected to the air bag 3, a spiral cavity 11 is opened in the wall thickness of the catheter 1, a linear cavity 10 is opened at one end of the spiral cavity 11, the port of the linear cavity 10 is a suction end opening 8, the end of the sputum suction tube 6 is sealed and connected to the suction end opening 8 and the inside is communicated, a plurality of side holes 9 are opened on the outer wall of the catheter 1, the side holes 9 are connected with the spiral cavity 11, and by setting the side holes 9 and the spiral cavity 11, the plurality of side holes 9 are distributed on the side wall of the catheter 1 During use, the negative pressure suction machine can be connected with the linear cavity 10 and the spiral cavity 11 through the suction tube 6, and a negative pressure vacuum is formed at the side hole 9. When secretions are produced in the patient's trachea, the negative pressure vacuum at the side hole 9 can quickly suck the secretions into the spiral cavity 11, and enter the negative pressure suction machine through the linear cavity 10 and the suction tube 6. Continuous negative pressure suction can prevent the patient's tracheal secretions from forming sputum, further avoid various discomforts caused by the use of the suction tube, and avoid repeated insertion of the suction tube to increase the patient's pain. An air guide connector 2 is installed at the head end of the catheter 1, and the air guide connector 2 and the catheter 1 are nested, which is convenient for adjusting the length of the catheter 1 to adapt to different patients.

[0032] like Figure 2 and Figure 3As shown, the spiral cavity 11 is a spiral structure, and the side hole 9 is arranged on the spiral cavity 11 and connected therewith. The end of the spiral cavity 11 is located at the bottom of the airbag 3 and the opening is the suction head opening 12. By setting the spiral cavity 11, the area of ​​the spiral cavity 11 with a spiral structure is increased compared with the straight structure, thereby increasing the number of side holes 9 that can be set, and making the side holes 9 evenly distributed around the catheter 1 in a ring, thereby increasing the suction points and making the suction effect better. The straight cavity 10 is a straight structure and is connected to the spiral cavity 11.

[0033] like Figure 1 and 2 As shown, the side wall of the catheter 1 is provided with an upper suction port 4, which is located at the top of the airbag 3. The upper suction tube extends to the inside of the catheter and is connected with the upper suction port. The secretions above the airbag can be sucked and discharged through the upper suction port. The side wall of the catheter 1 is provided with an inflation port 14, which is located inside the airbag 3. The end of the inflation tube 13 extends to the inside of the catheter 1 and is sealed and connected with the inflation port 14 and is connected to the inside. The head end of the inflation tube 13 is connected to an inflation bag 15, and the inflation bag 15 is provided with a one-way flow valve. The one-way flow valve in the inflation bag 15 can seal the airbag 3 and the inflation tube 13. At the same time, the inflation bag 15 can detect the air tightness of the airbag 3. The two ends of the airbag 3 are respectively sealed and connected to the outer wall of the catheter 1. The head end of the suction tube 6 is connected to a negative pressure connector 7, and the negative pressure connector 7 is adapted to the suction interface of the negative pressure suction machine.

[0034] The working principle provided by the utility model is that when in use, the end of the catheter 1 is inserted into the patient's trachea, and then a proper amount of air is injected into the opening of the inflatable bag 15 through a syringe to prop up the airbag 3, so that the airbag 3 is expanded to be tightly attached to the inner wall of the patient's trachea, and then the catheter 1 is fixed inside the patient's trachea, and then according to the intubation operation steps, oxygen is delivered to the patient's trachea through the air guide joint 2 to assist the patient in normal breathing. After the catheter 1 is connected to the ventilator, the sputum suction tube 6 is connected to the negative pressure suction machine through the negative pressure joint 7. The negative pressure suction machine is connected to the sputum suction tube 6, the linear cavity 10, and the spiral cavity 11, and a negative pressure vacuum is formed at the side hole 9. The secretions generated in the trachea will continue to enter the spiral cavity 11 from the side hole 9, and finally enter the negative pressure suction machine through the linear cavity 10 and the sputum suction tube 6. Continuous negative pressure suction can reduce the generation of sputum in the patient's trachea, avoid the patient using the sputum suction tube, and then avoid the stimulation of the sputum suction tube on the patient, thereby improving the patient's comfort.

[0035] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A tracheal intubation tube with a side hole on the inner wall of the tube and the outer side of the tube being connectable to negative pressure suction, characterized in that: It includes a catheter, the side walls of which are respectively fixedly connected with an upper suction tube, a sputum suction tube and an inflation tube, the end of the catheter is connected with an air bag, the inflation tube is communicated with the air bag, a spiral cavity is opened in the wall thickness of the catheter, a linear cavity is opened at one end of the spiral cavity, the port of the linear cavity is the suction end opening, the end of the sputum suction tube is sealed and connected to the suction end opening and the insides are communicated, and a plurality of side holes are opened on the outer side wall of the catheter, and the side holes are communicated with the spiral cavity.

2. The endotracheal tube with a side hole on the inner wall of the catheter according to claim 1, wherein the outer side of the catheter can be connected to negative pressure suction, The spiral cavity is a spiral structure, the side hole is arranged on the spiral cavity spiral and is connected with the spiral cavity spiral, the end of the spiral cavity is located at the bottom of the airbag and the opening is the suction head end opening.

3. The endotracheal tube with a side hole on the inner wall of the catheter and the outside of which can be connected to negative pressure suction according to claim 1, characterized in that: The linear cavity is a linear structure and is communicated with the spiral cavity.

4. The endotracheal tube with a side hole on the inner wall of the catheter and the outside of which can be connected to negative pressure suction according to claim 1, characterized in that: An upper suction port is provided on the side wall of the catheter, and the upper suction port is located at the top of the airbag. The upper suction tube extends into the interior of the catheter and is communicated with the upper suction port.

5. The endotracheal tube with a side hole on the inner wall of the catheter and the outer side of which can be connected to negative pressure suction according to claim 1, characterized in that: The side wall of the catheter is provided with an inflation port, and the inflation port is located inside the airbag.

6. The endotracheal tube with a side hole on the inner wall of the catheter and the outside of which can be connected to negative pressure suction according to claim 5, characterized in that: The end of the inflation tube extends into the interior of the conduit and is sealed and connected to the inflation port and communicates with the interior.

7. The endotracheal tube with a side hole on the inner wall of the catheter and the outer side of which can be connected to negative pressure suction according to claim 1, characterized in that: The first end of the inflation tube is connected with an inflation bag, and the inflation bag is provided with a one-way flow valve.

8. The endotracheal tube with a side hole on the inner wall of the catheter and the outer side of which can be connected to negative pressure suction according to claim 1, characterized in that: The two ends of the airbag are respectively sealed and connected to the outer wall of the catheter.

9. The endotracheal tube with a side hole on the inner wall of the catheter and the outside of which can be connected to negative pressure suction according to claim 1, characterized in that: The first end of the sputum suction tube is connected with a negative pressure connector.

10. The endotracheal tube with a side hole on the inner wall of the tube and the outside of which can be connected to negative pressure suction according to claim 1, characterized in that: An air guide joint is installed at the front end of the conduit, and the air guide joint and the conduit are nestedly connected.

Images