Breathing connector

Abstract

The utility model discloses a breathing connector which comprises a shell, a first connector and a second connector, the shell is configured to be in a barrel shape, the side wall of the shell is provided with a first connector extending in the radial direction, and the first connector is used for being communicated with the breathing system of a patient; the cover body is arranged at the upper end of the shell in a buckled mode, and the side wall of the cover body is provided with a second connector extending in the radial direction; the inner barrel is arranged in the shell, the inner barrel divides an inner cavity of the shell into an annular cavity located on the radial outer side and a cylindrical cavity located on the radial inner side, the first connector communicates with the annular cavity, and the cylindrical cavity communicates with the second connector; the lower end of the inner cylinder is higher than the cavity bottom of the inner cavity, so that the lower end of the annular cavity is communicated with the lower end of the cylindrical cavity; and the hydrophilic part is positioned below the inner cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a breathing connector in an oxygen supply system. Background Art

[0002] There are connectors with multiple functions in the oxygen supply system for providing oxygen to patients, one of which is used to liquefy and remove water from the exhaled airflow. For this purpose, the breathing connector used to liquefy and remove water from the exhaled airflow in the prior art generally includes a cylindrical shell, a cover body buckled on the cylindrical shell, and a hydrophilic component; a radially extending first interface is arranged on the wall of the shell, a radially extending second interface is arranged on the side of the cover body, and the hydrophilic component is arranged at the bottom of the inner cavity of the shell. The second interface is connected to the oxygen source through the trachea; the first interface is connected to the breathing mask through the trachea, and thus connected to the patient's nostrils and mouth. When the patient inhales, the oxygen flow provided by the oxygen source is sent into the patient's breathing system through the second interface, the inner cavity of the shell and the first interface. When the patient inhales, the airflow exhaled by the patient enters the inner cavity of the shell through the first interface. In the inner cavity, the exhaled airflow exchanges heat with the wall of the shell, so that the water in the fluid is liquefied and flows down along the wall and is adsorbed by the hydrophilic component, and then the airflow flows out through the second interface.

[0003] The above connector in the prior art has the following defects when used:

[0004] 1. The effect of removing water from the exhaled airflow is poor. The reason is that among the exhaled airflow entering the inner cavity of the shell, only the airflow located in the radial outer layer has the opportunity to contact the wall of the shell for heat exchange, while the airflow located in the radial inner layer has little chance to contact the wall. This part of the airflow in the radial inner layer directly flows out from the second interface, and the water carried by this part of the airflow may affect other equipment of the respiratory system, for example, affect the biosafety of other equipment, and specifically, may cause bacteria to grow on the equipment.

[0005] 2. The oxygen flow provided by the oxygen source will contact the hydrophilic component when passing through the inner cavity of the shell, so that the hydrophilic component will humidify the oxygen flow in an undesirable manner.

[0006] 3. The connector may be temporarily inverted as a whole, causing water at the bottom of the inner cavity of the shell below the hydrophilic component to flow back toward the second interface. Utility Model Content

[0007] In view of the above-mentioned technical problems existing in the prior art, an embodiment of the utility model provides a breathing connector.

[0008] In order to solve the above technical problems, the technical solution adopted in the embodiment of the utility model is:

[0009] A breathing connector, comprising:

[0010] A shell, which is configured in a cylindrical shape, and a radially extending first interface is configured on a side wall of the shell, and the first interface is used to communicate with the patient's respiratory system;

[0011] A cover body, which is buckled on the upper end of the shell, and the side wall of the cover body is provided with a second interface extending radially;

[0012] an inner cylinder, which is arranged in the shell, and the inner cylinder divides the inner cavity of the shell into an annular cavity located on the radial outside and a cylindrical cavity located on the radial inside, the first interface is communicated with the annular cavity, and the cylindrical cavity is communicated with the second interface; the lower end of the inner cylinder is higher than the cavity bottom of the inner cavity, so that the lower end of the annular cavity is communicated with the lower end of the cylindrical cavity;

[0013] The hydrophilic component is located below the inner cylinder.

[0014] Preferably, an airflow control component is disposed transversely between the housing and the cover, and the airflow control component comprises:

[0015] The valve plate has a first frustum surface located on the inner side in the radial direction and a second frustum surface located on the outer side in the radial direction; the first frustum surface and the second frustum surface are respectively facing upward and downward; the first frustum surface is provided with a plurality of first ventilation grooves penetrating in the thickness direction and arranged circumferentially, and the second frustum surface is provided with a plurality of second ventilation grooves penetrating in the thickness direction and arranged circumferentially;

[0016] a first silicone film covering the first frustum surface, wherein the radial inner edge of the first silicone film is attached to the first frustum surface, the radial outer edge of the first silicone film is kept separated from the first frustum surface, and the first silicone film opens the first vent groove by deforming radially outward;

[0017] A second silicone membrane covers the second frustum surface, wherein the radial inner edge of the second silicone membrane is attached to the second frustum surface, and the radial outer edge of the second silicone membrane remains separated from the second frustum surface, and the second silicone membrane opens the second ventilation groove by deforming radially outward.

[0018] Preferably, the cylinder wall at the lower portion of the inner cylinder expands radially outward to form an expansion portion.

[0019] Preferably, a flat portion away from the first interface is formed in an area of ​​the wall of the inner cylinder opposite to the first interface.

[0020] Preferably,

[0021] The cavity bottom of the inner cavity of the shell is configured to be inclined toward the middle, so that the radial inner side of the cavity bottom is lower than the radial outer side of the cavity bottom;

[0022] A flow guide interface extending downward is arranged in the middle of the cavity bottom;

[0023] A disc-shaped component is disposed below the housing, the disc-shaped component has a disc-shaped cavity, and the hydrophilic component is adapted to and disposed in the disc-shaped cavity;

[0024] The disc-shaped component is attached to the flow guide interface.

[0025] Preferably, a necking component is attached to the lower end of the diversion interface.

[0026] Preferably, a filter component is disposed in the cover body, and the filter component is located above the airflow control component.

[0027] Preferably, the thickness of the second silicone film is greater than the thickness of the first silicone film.

[0028] Preferably, the bottom of the disc-shaped component is configured as an openable and closable structure so that the hydrophilic component can be taken out of the disc-shaped component.

[0029] Compared with the prior art, the beneficial effects of the breathing connector disclosed in the utility model are:

[0030] The breathing connector provided by the utility model can significantly improve the liquefaction effect and efficiency of water in the exhaled air flow.

[0031] The overview of various implementations or examples of the technology described in this utility model is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In the drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the utility model. When appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present device or method.

[0033] Figure 1 This is a main cross-sectional view of a breathing connector provided in an embodiment of the utility model.

[0034] Figure 2 for Figure 1AA section view.

[0035] Figure 3 for Figure 1 B-direction cross-sectional view.

[0036] Figure 4 This is a state view of the breathing connector during exhalation.

[0037] Figure 5 This is a state view of the breathing connector during inspiration.

[0038] Reference numerals:

[0039] 10-shell; 11-first interface; 12-annular cavity; 13-cylindrical cavity; 14-flow guide interface; 20-cover; 30-inner cylinder; 31-expansion part; 32-flattening part; 40-air flow control component; 41-valve plate; 411-first ventilation groove; 412-second ventilation groove; 421-first silicone membrane; 422-second silicone membrane; 50-hydrophilic component; 60-disc-shaped component; 61-bottom cover; 70-neck component; 80-filter component. DETAILED DESCRIPTION

[0040] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0042] The embodiment of the utility model discloses a breathing connector, which is used for connecting between an oxygen source and a breathing mask in an oxygen supply system to liquefy and remove water in an exhaled airflow from a patient.

[0043] like Figures 1 to 3 As shown, the breathing connector includes: a housing 10 , a cover 20 , an inner tube 30 , a hydrophilic component 50 , a disc-shaped component 60 , a filter component 80 and an airflow control component 40 .

[0044] The shell 10 is configured as a columnar structure, and a first interface 11 extending radially outward is provided on the side wall of the shell 10. The first interface 11 is connected to the inner cavity of the shell 10, and the breathing mask is connected to the first interface 11 through the trachea, so that the patient's respiratory system is connected to the first interface 11. The bottom of the inner cavity of the shell 10 is configured to be inclined from the radial outside to the radial inside, that is, the middle of the bottom of the cavity is lower than the edge of the bottom of the cavity, so that the fluid can automatically flow from the edge of the bottom of the cavity to the middle of the bottom of the cavity. A downwardly extending guide interface 14 is configured in the middle of the bottom of the cavity, and the fluid flows out of the bottom of the cavity through the guide interface 14.

[0045] The cover body 20 is screwed onto the upper end of the shell 10 . The side wall of the cover body 20 has a second interface extending radially outward. The second interface is connected to the oxygen source through an air pipe, so that the oxygen source supplies oxygen to the shell 10 through the second interface.

[0046] The inner cylinder 30 is disposed in the housing 10, and the inner cylinder 30 divides the inner cavity of the housing 10 into an annular cavity 12 located radially outward and a cylindrical cavity 13 located radially inward, so that the first interface 11 passes through the annular cavity 12; the lower end of the inner cylinder 30 is higher than the cavity bottom of the inner cavity of the housing 10, so that the annular cavity 12 and the cylindrical cavity 13 are connected at the lower end of the inner cavity. In some preferred structures, the cylinder wall of the lower part of the inner cylinder 30 is radially inclined outward to form an expansion part 31, and the expansion part 31 makes the gap at the lower part of the annular cavity 12 smaller than the gap at the upper part of the annular cavity 12. In some preferred structures, the wall of the inner tube 30 in the area opposite to the first interface 11 is configured as a flat portion 32, and the flat portion 32 is farther away from the side wall of the shell 10 than the wall of other areas of the inner tube 30, thereby facilitating the exhaled air flow from the first interface 11 to enter the annular cavity 12 more smoothly and facilitating the exhaled air flow to diffuse toward the annular cavity 12 outside the flat portion 32.

[0047] The airflow control component 40 is horizontally placed between the shell 10 and the cover body 20, and the airflow control component 40 includes a valve plate 41, a first silicone membrane 421 and a second silicone membrane 422; the valve plate 41 is disc-shaped, and the valve plate 41 is fixed between the shell 10 and the cover body 20, and the valve plate 41 has a first cone surface located on the radial inner side and a second cone surface located on the radial outer side, the first cone surface faces upward, and the second cone surface faces downward; a plurality of first ventilation grooves 411 penetrating in thickness are provided on the first cone surface, and the plurality of first ventilation grooves 411 are arranged circumferentially, and a plurality of second ventilation grooves 412 penetrating in thickness are provided on the second cone surface, and the plurality of second ventilation grooves 41 2 circumferential arrangement; the first silicone membrane 421 covers the first frustum surface, and the radial inner side of the first silicone membrane 421 is attached to the first frustum surface, and the radial outer side of the first silicone membrane 421 is kept separated from the first frustum surface; the second silicone membrane 422 covers the second frustum surface, and the radial inner side of the second silicone membrane 422 is attached to the second frustum surface, and the radial outer side of the second silicone membrane 422 is kept separated from the second frustum surface, so that the radial outer side of the first silicone membrane 421 can be deformed upward to open the first vent groove 411, and the radial outer side of the second silicone membrane 422 can be deformed downward to open the second vent groove 412. The upper end of the cylinder body abuts against the bottom of the valve plate 41 in the area between the first frustum surface and the second frustum surface, so that the first vent groove 411 corresponds to the cylindrical cavity 13, and the second vent groove 412 corresponds to the annular cavity 12. The filter component 80 is adapted to the interior of the cover body 20 and is disposed in the cover body 20 . The filter component 80 is used to filter the airflow passing through the interior of the cover body 20 .

[0048] The middle part of the upper end of the disc-shaped component 60 is attached to the diversion interface 14 at the bottom of the housing 10. A disc-shaped cavity is configured in the disc-shaped component 60. The hydrophilic component 50 is adapted to the disc-shaped cavity and is arranged in the disc-shaped cavity. The hydrophilic component 50 (such as an absorbent sponge) is used to absorb water from the diversion interface 14. In some preferred structures, a bottom cover 61 that can be opened and closed is provided at the bottom of the disc-shaped component 60, and the hydrophilic component 50 in the disc-shaped cavity is replaced by opening the bottom cover 61. A constriction component 70 is attached to the diversion interface 14, and the inner hole of the lower end of the constriction component 70 is much smaller than the inner hole of the diversion interface 14.

[0049] The following introduces the working process and function of some breathing connectors in the oxygen supply system.

[0050] When the patient exhales, Figure 4As shown, the exhaled airflow first enters the annular inner cavity of the housing 10 through the first interface 11. In the annular inner cavity, the annular inner cavity reduces the radial layer thickness of the exhaled airflow, so that the exhaled airflow contacts the side wall of the housing 10 more fully, which can make the moisture in the exhaled airflow more easily liquefied, thereby significantly improving the liquefaction efficiency and effect of the exhaled airflow. Since the radial outer side of the second silicone membrane 422 is restricted to deform upward, the exhaled airflow can only flow downward and pass through the inner cavity bottom of the housing 10 and flow into the cylindrical cavity 13. Since the expansion portion of the lower part of the inner cylinder 30 reduces the gap at the lower end of the annular cavity 12, the time the exhaled airflow stays in the annular cavity 12 can be extended, thereby further improving the liquefaction efficiency.

[0051] The water liquefied and attached to the side wall of the housing 10 flows downward along the side wall, and then flows toward the middle along the cavity bottom and flows into the inner cavity of the disc-shaped component 60 through the flow guide interface 14 and the constricted part 70 to be adsorbed by the hydrophilic component 50 .

[0052] The exhaled airflow entering the cylindrical cavity 13 flows upward, causing the radial outer side of the first silicone membrane 421 to deform upward and open the first ventilation groove 411, so that the exhaled airflow flows into the filter component 80 through the first ventilation groove 411, and the filter component 80 filters the exhaled airflow. The filtered exhaled airflow flows out from the second interface and is then discharged out of the system by other types of connectors. Configuring the first silicone membrane 421 to have a smaller thickness is conducive to reducing the resistance to the patient's exhalation.

[0053] When the oxygen source supplies oxygen, such as Figure 5 As shown, oxygen first enters the cover body 20 through the second interface and is filtered by the filter component 80. Since the radial outer side of the first silicone membrane 421 is restricted from deforming downward, oxygen can only deform the radial outer side of the second silicone membrane 422 downward, and oxygen enters the annular cavity 12 through the second ventilation groove 412 without entering the cylindrical cavity 13, thereby reducing the flow path of oxygen, thereby reducing the chance of contact with liquefied water or the hydrophilic component 50, and thus reducing the humidification of oxygen to a certain extent. The oxygen entering the annular cavity 12 flows out through the second interface and flows to the patient for the patient to inhale.

[0054] If the entire connector is temporarily inverted, the constricted portion 70 can prevent water in the disc-shaped portion 60 from entering the housing 10 through the flow guide interface 14 and humidifying the filter portion 80 .

[0055] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and the examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0056] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the utility model. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the utility model may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the utility model should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0057] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A breathing connector, characterized in that: include: A shell, which is configured in a cylindrical shape, and a radially extending first interface is configured on a side wall of the shell, and the first interface is used to communicate with the patient's respiratory system; A cover body, which is buckled on the upper end of the shell, and the side wall of the cover body is provided with a second interface extending radially; an inner cylinder, which is arranged in the shell, and the inner cylinder divides the inner cavity of the shell into an annular cavity located on the radial outside and a cylindrical cavity located on the radial inside, the first interface is communicated with the annular cavity, and the cylindrical cavity is communicated with the second interface; the lower end of the inner cylinder is higher than the cavity bottom of the inner cavity, so that the lower end of the annular cavity is communicated with the lower end of the cylindrical cavity; The hydrophilic component is located below the inner cylinder.

2. The breathing connector according to claim 1, characterized in that An airflow control component is disposed transversely between the housing and the cover, and the airflow control component includes: The valve plate has a first frustum surface located on the inner side in the radial direction and a second frustum surface located on the outer side in the radial direction; the first frustum surface and the second frustum surface are respectively facing upward and downward; the first frustum surface is provided with a plurality of first ventilation grooves penetrating in the thickness direction and arranged circumferentially, and the second frustum surface is provided with a plurality of second ventilation grooves penetrating in the thickness direction and arranged circumferentially; a first silicone film covering the first frustum surface, wherein the radial inner edge of the first silicone film is attached to the first frustum surface, the radial outer edge of the first silicone film is kept separated from the first frustum surface, and the first silicone film opens the first vent groove by deforming radially outward; A second silicone membrane covers the second frustum surface, wherein the radial inner edge of the second silicone membrane is attached to the second frustum surface, and the radial outer edge of the second silicone membrane remains separated from the second frustum surface, and the second silicone membrane opens the second ventilation groove by deforming radially outward.

3. The breathing connector according to claim 1, characterized in that The cylinder wall at the lower part of the inner cylinder expands radially outward to form an expansion portion.

4. The breathing connector according to claim 1, characterized in that A flat portion away from the first interface is formed in an area of ​​the wall of the inner cylinder opposite to the first interface.

5. The breathing connector according to claim 1, characterized in that The cavity bottom of the inner cavity of the shell is configured to be inclined toward the middle, so that the radial inner side of the cavity bottom is lower than the radial outer side of the cavity bottom; A flow guide interface extending downward is arranged in the middle of the cavity bottom; A disc-shaped component is disposed below the housing, the disc-shaped component has a disc-shaped cavity, and the hydrophilic component is adapted to and disposed in the disc-shaped cavity; The disc-shaped component is attached to the flow guide interface.

6. The breathing connector according to claim 5, characterized in that A necking component is attached to the lower end of the diversion interface.

7. The breathing connector according to claim 5, characterized in that A filter component is disposed in the cover body, and the filter component is located above the airflow control component.

8. The breathing connector according to claim 2, characterized in that The thickness of the second silicone film is greater than the thickness of the first silicone film.

9. The breathing connector according to claim 5, characterized in that The bottom of the disc-shaped component is configured to be an openable and closable structure so that the hydrophilic component can be taken out from the disc-shaped component.

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