CN215461136U - Disposable trachea cannula - Google Patents
Disposable trachea cannula Download PDFInfo
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- CN215461136U CN215461136U CN202121509021.8U CN202121509021U CN215461136U CN 215461136 U CN215461136 U CN 215461136U CN 202121509021 U CN202121509021 U CN 202121509021U CN 215461136 U CN215461136 U CN 215461136U
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- cavity
- pressing plate
- shell
- elastic unit
- pressure
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- 210000003437 trachea Anatomy 0.000 title claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 61
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 description 6
- 206010002091 Anaesthesia Diseases 0.000 description 3
- 230000037005 anaesthesia Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000004712 air sac Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a disposable trachea cannula which comprises a main cannula, an air bag, an inflation tube, an inflation connector, a cannula connector and a pressure monitoring component, wherein the pressure monitoring component comprises a pressing plate, an elastic unit and a transparent shell, a cavity is arranged in the shell, the pressing plate is arranged in the cavity, the pressing plate divides the cavity into a first cavity and a second cavity which are not communicated with each other, the first cavity is connected with the inflation tube, the elastic unit is arranged in the second cavity, one end of the elastic unit is connected with the inner wall of the shell, the other end of the elastic unit is connected with the pressing plate, the pressing plate can move in the cavity along the axial direction of the pressing plate, and scale marks are arranged on the shell. The disposable trachea cannula has the advantages of simple structure, low cost and convenient use, the closed structure also meets the specification of aseptic operation, and a user can visually observe the pressure change of the air bag.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a disposable trachea cannula.
Background
The trachea cannula is a technique for endotracheal anesthesia and patient rescue, and is the most reliable means for keeping the upper respiratory tract unobstructed. The prior trachea cannula needs to support the trachea wall through an air sac body on the cannula after the trachea cannula is inserted into a patient, thereby being convenient for the smooth opening of an airway. However, in the process of inflating the air bag body, if the inflation air pressure is too low, there is a risk of air leakage when the anesthesia machine is used for mechanical ventilation, and if the air pressure is too high, ischemia necrosis of the tracheal mucosa is caused, so that the air pressure of the air bag needs to be monitored.
In current clinical application, equipment such as a pressure gauge or a pressure sensor is usually adopted to monitor the air pressure of an air sac of an endotracheal tube, but the equipment is only suitable for the endotracheal tube which can be used for multiple times, and for the disposable endotracheal tube, the equipment is specially and accurately used for monitoring, which is obviously unrealistic. Although there are simple monitoring structures for monitoring the air pressure, there are still some disadvantages. For example, the trachea cannula with the function of monitoring the pressure of the air bag disclosed in chinese patent publication No. CN111375108A has a cavity in the housing of the pressure measuring device, a piston is arranged in the cavity, the piston is connected to a pressure measuring column, the bottom end of the pressure measuring column penetrates out of the housing, a pressure scale value mark is arranged on the pressure measuring column, and the size of the air pressure can be judged by the mark when in use. Although this monitoring structure is low in cost and suitable for single-use endotracheal intubation, it has a number of drawbacks. The piston and the shell are inevitably provided with a gap in the production process, and although the gap has little influence on the error of air pressure monitoring, the inside and the outside of the shell are exchanged during use, which means that bacteria in the outside air can enter the inside of the shell and is not in accordance with the specification of sterile operation. In addition, the piston is mainly pushed by outside air, so that the homing speed is relatively slow, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a disposable trachea cannula for solving one or more technical problems in the prior art, which has the advantages of simple structure, low cost and convenient use, the closed structure also meets the specification of aseptic operation, a user can visually observe the pressure change of an air bag during operation, and the user can timely take measures according to actual conditions.
The solution of the utility model for solving the technical problem is as follows:
the disposable trachea cannula comprises a main cannula, an air bag, an inflation tube, an inflation connector, a cannula connector and a pressure monitoring component, wherein the cannula connector is connected with one end of the main cannula; the pressure monitoring part comprises a pressing plate, an elastic unit and a transparent shell, the shell is provided with a cavity, the pressing plate is arranged in the cavity, the pressing plate divides the cavity into a first cavity and a second cavity which are not communicated with each other, the first cavity is connected with the inflation tube, the elastic unit is arranged in the second cavity, one end of the elastic unit is connected with the inner wall of the shell, the other end of the elastic unit is connected with the pressing plate, the pressing plate can be arranged in the cavity along the axial direction of the pressing plate, and scale marks are arranged on the shell.
The utility model has at least the following beneficial effects: when the air inflation device is used, the air inflation connector is connected with an external air inflation device, the air inflation device conveys air to the air bag through the inflation tube, meanwhile, the air can also enter the first cavity in the shell, at the moment, one surface of the pressing plate can receive the pressure exerted by the air in the first cavity, the other surface of the pressing plate can receive the elastic force of the elastic unit and the air pressure of original air in the second cavity, and the pressing plate can move due to the stress difference on the two sides. Consequently, observe the change of clamp plate position and the scale sign that the clamp plate position corresponds through transparent casing, just can monitor the atmospheric pressure of gasbag, can know in real time whether too big of atmospheric pressure of gasbag, perhaps whether the phenomenon of gas leakage has appeared again, observe more directly perceived convenience, the user can in time make counter-measures according to actual conditions. In addition, the utility model has simple structure and low manufacturing cost, and the closed pressure monitoring part also meets the specification of aseptic operation.
As a further improvement of the technical scheme, an air inlet is formed in the shell, one end of the air inlet is connected with the inflation tube, the other end of the air inlet is connected with the first cavity, the axis of the air inlet and the axis of the pressing plate are in the same straight line, so that gas in the inflation tube can directly contact with the central part of the pressing plate after entering the first cavity from the air inlet, the applied pressure is more uniform, and the pressing plate can move more directly and rapidly according to the stress difference on two sides of the pressing plate.
As a further improvement of the above technical solution, the elastic unit is a spring, one end of the spring is connected with the pressure plate, the other end of the spring is connected with the inner wall of the housing, and the axis of the spring and the axis of the pressure plate are in the same line, so that the pressure of the pressure plate is more uniform, the pressure plate can move more smoothly, and the pressure in the air inflation tube can be reflected more directly and rapidly through the moving position.
As a further improvement of the technical scheme, the cavity is provided with a limiting rod, the pressing plate is provided with a through hole, the axial direction of the through hole is consistent with the axial direction of the pressing plate, the limiting rod penetrates through the pressing plate along the through hole, two ends of the limiting rod are connected with the shell, the pressing plate can move on the limiting rod, the limiting rod can enable the pressing plate not to be inclined in the moving process, the first cavity and the second cavity are kept in a non-communicated state all the time, and the accuracy of the pressure monitoring component is guaranteed.
As a further improvement of the technical scheme, the number of the through holes is two, and the through holes are symmetrically arranged by taking the axis of the pressing plate as a symmetry axis, so that the pressing plate is more uniformly stressed and moves more smoothly.
As a further improvement of the above technical solution, the scale marks are sequentially arranged from the first cavity to the second cavity, and are respectively 0 mmHg, 15mmHg and 36mmHg, so that the change of the air pressure inside the inflation tube can be observed more intuitively.
As a further improvement of the technical scheme, the casing is a cuboid, and is convenient to hold by hand for observation when in use.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the utility model, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a pressure monitoring component according to an embodiment of the present invention.
In the figure: 1. a main cannula; 2. an air bag; 3. an inflation tube; 4. an inflation joint; 5. a cannula fitting; 6. a pressure monitoring component; 61. a first cavity; 62. a second cavity; 63. a housing; 64. an air inlet; 65. a spring; 66. pressing a plate; 67. a limiting rod; 7. and (5) scale marking.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the utility model can be interactively combined on the premise of not conflicting with each other.
As shown in figure 1, a disposable trachea cannula comprises a main cannula 1, an air bag 2, an inflation tube 3, an inflation connector 4, a cannula connector 5 and a pressure monitoring part 6, wherein when in use, one end of the cannula connector 5 is connected with an anesthesia machine through a Y-shaped tube, the other end of the cannula connector 5 is connected with one end of the main cannula 1, the other end of the main cannula 1 is inserted into a preset position in a patient body, the air bag 2 is sleeved on the outer wall of the end of the main cannula 1, which is positioned in the patient body, one end of the inflation tube 3 is connected with the air bag 2, the other end of the inflation tube 3 is connected with the inflation connector 4, the pressure monitoring part 6 is connected with the inflation tube 3, the inflation tube 3 and the air bag 2 are positioned in the same cavity, so that the air pressure in the inflation tube 3 is the same as the air pressure in the air bag 2, and a user can observe the air pressure of the inflation tube 2 in real time through the pressure monitoring part 6, i.e. the amount of air pressure in the air bag 2.
As shown in fig. 2, the pressure monitoring part 6 includes a pressing plate 66, an elastic unit and a transparent casing 63, the casing 63 is provided with a cavity, the pressing plate 66 is arranged in the cavity, the pressing plate 66 divides the cavity into a first cavity 61 and a second cavity 62 which are not communicated with each other, the first cavity 61 is connected with the inflation tube 3, the elastic unit is arranged in the second cavity 62, one end of the elastic unit is connected with the inner wall of the casing 63, the other end of the elastic unit is connected with the pressing plate 66, the elastic unit can push the pressing plate 66 to move in the cavity along the axial direction of the pressing plate 66, the casing is provided with scale marks, and the casing 63 is transparent, so that a user can observe the position change of the pressing plate 66 through the casing 63, and accordingly, the pressure change in the airbag 2 is monitored through the position change of the pressing plate 66 and the scale marks corresponding to the position of the pressing plate.
In this embodiment, the elastic unit is a spring 65, as shown in fig. 2, one end of the spring 65 is connected to the pressing plate 66, the other end of the spring 65 is connected to the inner wall of the housing 63, and the axis of the spring 65 and the axis of the pressing plate 66 are in the same line, so that the pressing plate 66 is more uniformly stressed, the pressing plate 66 can move more smoothly, and the pressure inside the air tube 3 can be reflected more directly and rapidly through the moving position.
In some other embodiments, the elastic unit may also be a spring, one end of the spring is connected to the pressure plate 66, and the other end of the spring is connected to the inner wall of the housing 63, and the elastic force generated by the spring can make the pressure plate 66 move along the axial direction of the pressure plate 66.
In some other embodiments, the elastic unit may also be other elastic materials, such as rubber materials, etc., and the embodiment is preferably a spring 65, and the spring 65 has the advantages of stable elasticity, simple structure, easy installation, low cost, etc., compared with other elastic materials, and is more suitable for being applied to a disposable endotracheal tube.
More specifically, the housing 63 is provided with three scale marks 7, which are sequentially arranged from the first cavity 61 to the second cavity 62, and are respectively 0 mmHg, 15mmHg and 36mmHg, according to the actual use condition, the air pressure of the airbag 2 is preferably stabilized at 15mmHg to 36mmHg, before inflating the inflation tube 3, the spring 65 is in the normal diastole state, the air pressures in the first cavity 61 and the second cavity 62 are the same and are the same as the standard atmospheric pressure, the two sides of the pressure plate 66 are stressed consistently, and the pressure plate 66 is at the position of 0. When the inflation tube 3 is inflated, the inflated gas enters the first cavity 61, at this time, the air pressure of the first cavity 61 is greater than the air pressure of the second cavity 62, so that the pressing plate 66 is pushed to move towards the second cavity 62, if the position of the pressing plate 66 is between 0 mmHg and 15mmHg, it is indicated that the air pressure of the airbag 2 is insufficient, the inflation needs to be continued or whether the air leaks or not, if the position of the pressing plate 66 is greater than 36mmHg, it is indicated that the air pressure of the airbag 2 is too high, the deflation needs to be performed, and in the whole using process, it is required to ensure that the position of the pressing plate 66 is between 15mmHg and 36 mmHg.
As shown in fig. 2, the housing 63 is provided with an air inlet 64, one end of the air inlet 64 is connected with the air charging pipe 3, the other end of the air inlet 64 is connected with the first cavity 61, and the axis of the air inlet 64 and the axis of the pressure plate 66 are in the same straight line, so that the air in the air charging pipe 3 enters the first cavity 61 from the air inlet 64 and then can directly contact with the central part of the pressure plate 66, the applied pressure is more uniform, and the pressure plate 66 can move more directly and more rapidly according to the difference between the bearing forces on the two sides of the pressure plate 66.
In some other embodiments, the axis of the gas inlet 64 may not be aligned with the axis of the pressure plate 66, and the gas inlet 64 is mainly used for delivering gas to the first cavity 61, so that the gas pressure of the first cavity 61 is consistent with the gas pressure of the inflation tube 3 and the airbag 2.
As shown in fig. 2, the cavity is provided with a limiting rod 67, the through hole has been seted up to the clamp plate 66, the axial of through hole is unanimous with the axial of clamp plate 66, the limiting rod 67 runs through clamp plate 66 along the through hole, the both ends of limiting rod 67 all are connected with casing 63, clamp plate 66 can move on limiting rod 67, the limiting rod 67 can make clamp plate 66 the phenomenon crooked can not appear at the in-process that removes, keep first cavity 61 and second cavity 62 to be in the state that does not communicate all the time, guarantee pressure monitoring part 6's accuracy.
In this embodiment, the number of through-holes is two, and two through-holes use the axis of clamp plate 66 to be the symmetry setting as the symmetry axis for the atress of clamp plate 66 is more even, and it is more smooth and easy to remove.
In some other embodiments, the number of the through holes may be one, the through holes may be disposed in the center of the pressing plate 66, the limiting rod 67 penetrates through the middle of the pressing plate 66 through the through holes, one end of the limiting rod 67 located in the second cavity 62 is connected to the inner wall of the housing 63, and one end of the limiting rod 67 located in the first cavity 61 may not be connected to the housing 63, but needs to extend between the air inlet 64 and the air tube 3, so as to ensure that the pressing plate 66 does not slide out of the limiting rod 67.
In some other embodiments, the number of the through holes may be three or more, and the specific number is set according to actual requirements, so long as the function of preventing the pressure plate 66 from being skewed is within the protection scope of the present invention.
In this embodiment, the housing 63 has a rectangular parallelepiped shape, and is easy to hold and observe with a hand during use, and is not easy to slide.
In some other embodiments, the housing 63 may also be square or cylindrical in shape.
While the preferred embodiments of the present invention have been described in detail, it is to be understood that the utility model is not limited to the precise embodiments, and that various equivalent changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (7)
1. A disposable trachea cannula comprises a main cannula, an air bag, an inflation tube, an inflation connector, a cannula connector and a pressure monitoring component, wherein the cannula connector is connected with one end of the main cannula;
the method is characterized in that: the pressure monitoring part comprises a pressing plate, an elastic unit and a transparent shell, the shell is provided with a cavity, the pressing plate is arranged in the cavity, the pressing plate divides the cavity into a first cavity and a second cavity which are not communicated with each other, the first cavity is connected with the inflation tube, the elastic unit is arranged in the second cavity, one end of the elastic unit is connected with the inner wall of the shell, the other end of the elastic unit is connected with the pressing plate, the pressing plate can be arranged in the cavity along the axial direction of the pressing plate, and scale marks are arranged on the shell.
2. A single use endotracheal tube according to claim 1, characterized in that: the shell is provided with an air inlet, one end of the air inlet is connected with the inflation tube, the other end of the air inlet is connected with the first cavity, and the axis of the air inlet and the axis of the pressing plate are located on the same straight line.
3. A single use endotracheal tube according to claim 2, characterized in that: the elastic unit is a spring, one end of the spring is connected with the pressing plate, the other end of the spring is connected with the inner wall of the shell, and the axis of the spring and the axis of the pressing plate are in the same straight line.
4. A single use endotracheal tube according to claim 3, characterized in that: the cavity is provided with a limiting rod, the pressing plate is provided with a through hole, the axial direction of the through hole is consistent with the axial direction of the pressing plate, the limiting rod penetrates through the pressing plate along the through hole, two ends of the limiting rod are connected with the shell, and the pressing plate can move on the limiting rod.
5. The single use endotracheal tube according to claim 4, characterized in that: the number of the through holes is two, and the two through holes are symmetrically arranged by taking the axis of the pressing plate as a symmetry axis.
6. The single use endotracheal tube according to claim 5, characterized in that: the scale marks are sequentially arranged from the first cavity to the second cavity and are respectively 0 mmHg, 15mmHg and 36 mmHg.
7. The single use endotracheal tube according to claim 6, characterized in that: the casing is in a cuboid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509021.8U CN215461136U (en) | 2021-07-02 | 2021-07-02 | Disposable trachea cannula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509021.8U CN215461136U (en) | 2021-07-02 | 2021-07-02 | Disposable trachea cannula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215461136U true CN215461136U (en) | 2022-01-11 |
Family
ID=79724378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121509021.8U Expired - Fee Related CN215461136U (en) | 2021-07-02 | 2021-07-02 | Disposable trachea cannula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215461136U (en) |
-
2021
- 2021-07-02 CN CN202121509021.8U patent/CN215461136U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |