CN219354954U - Connector of respiratory assistance system - Google Patents

Abstract

The utility model provides a connector of a respiratory assistance system, which comprises a catheter assembly, a sealing ring and a patient interface assembly, wherein the catheter assembly comprises a first connecting end, the patient interface assembly comprises a second connecting end, and the first connecting end and the second connecting end are coaxially nested, so that the catheter assembly and the patient interface assembly can rotate relatively, and the sealing ring is clamped between the first connecting end and the second connecting end. In the scheme, the first connecting end and the second connecting end can relatively rotate, and in the using process, the dead zone in the gas loop can be eliminated by adjusting the relative positions of the catheter component and the patient interface component, and meanwhile, part of components of the connector can be replaced at any time, so that the flexibility of the connector in use is improved; through the sealing washer that presss from both sides tightly between first link and second link, both provided rotation damping, still realized between first link and the second link good and stable sealed effect.

Description

Connector of respiratory assistance system

Technical Field

The utility model belongs to the field of medical instruments, and particularly relates to a connector of a respiratory assistance system.

Background

Ventilators are an important member of the medical field, wherein respiratory assistance systems typically use Y-pieces as connectors to connect inspiratory and expiratory tubes to a patient interface, and conventional Y-pieces are essentially one piece, integrally provided, with a heating dead zone in the gas circuit through which gas tends to condense and accumulate on the tubes, causing inconvenience to the patient and medical personnel.

Disclosure of Invention

The utility model aims to provide a connector of a breathing auxiliary system, which aims to solve the technical problem that a Y-shaped part integrally arranged in the related technology reduces the use flexibility.

To solve the above-mentioned problems, the present utility model is a connector for a respiratory assistance system, including a catheter assembly, a sealing ring, and a patient interface assembly, where the catheter assembly includes a first connection end, and the patient interface assembly includes a second connection end, and the first connection end and the second connection end are coaxially nested, so that the catheter assembly and the patient interface assembly can relatively rotate the sealing ring to be clamped between the first connection end and the second connection end.

Further, the first connecting end is inserted into the second connecting end, the sealing ring surrounds the outer wall of the first connecting end, and the outer wall of the sealing ring is abutted to the inner wall of the second connecting end.

Further, the second connecting end is inserted in the first connecting end, the sealing ring surrounds the outer wall of the second connecting end, and the outer wall of the sealing ring is abutted to the inner wall of the first connecting end.

Further, the catheter assembly further comprises a first abutting structure protruding from the outer wall of the first connecting end, the patient interface assembly comprises a second abutting structure and a third abutting structure protruding from the inner wall of the second connecting end, the second abutting structure abuts against the top side of the first abutting structure, the top side of the third abutting structure abuts against the bottom side of the first abutting structure, and the bottom side of the sealing ring abuts against the top side of the first abutting structure.

Further, the catheter assembly includes a first ramp structure disposed on a top side of the first connection end, and the patient interface assembly includes a second ramp structure disposed on a bottom side of the third abutment structure.

Further, the catheter assembly further comprises a limiting structure arranged at the bottom of the first inclined plane structure and protruding out of the outer wall of the first connecting end.

Further, the patient interface assembly further includes a connecting tube at a top end of the second connecting end, the connecting tube having a first opening and a second opening, the first opening, the second opening, the first connecting end, and the catheter assembly being in communication with one another.

Further, the patient interface assembly further includes a first plug for plugging a first opening and a second plug for plugging a second opening, the second plug being provided with a notch in communication with the second opening.

Further, the second plug is of a one-way valve structure, and the direction of the one-way valve structure is from the notch to the connecting pipe.

Further, the catheter assembly includes an exhalation catheter and an inhalation catheter disposed at the bottom side of the first connection end and symmetrically disposed along a centerline of the first connection end, the exhalation catheter, inhalation catheter, second connection end and patient interface assembly being in communication with one another.

Compared with the related technology, the connector of the breathing auxiliary system has the beneficial effects that:

in the scheme, the first connecting end of the catheter assembly and the second connecting end of the patient interface assembly are coaxially nested, and the first connecting end is abutted to the first connecting end in the axial direction, so that the first connecting end and the second connecting end can rotate relatively; meanwhile, through the sealing ring clamped between the first connecting end and the second connecting end, not only is rotation damping provided, but also a good and stable sealing effect between the first connecting end and the second connecting end is realized; because the catheter component and the patient interface component can rotate relatively, the relative positions of the catheter component and the patient interface can be adjusted through rotation in the use process, dead zones in a gas loop are eliminated, and meanwhile, part of components of the connector can be replaced at any time, so that the flexibility of the connector in use is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings may be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic overall construction of a connector of a respiratory assistance system in an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of a connector of a respiratory assistance system in an embodiment of the present application;

FIG. 3 is a schematic view of a catheter assembly in an embodiment of the present application;

FIG. 4 is a schematic structural view of a patient interface assembly according to an embodiment of the present application that does not include a first plug and a second plug;

FIG. 5 is a first perspective exploded view of a connector of a respiratory assistance system in an embodiment of the present application;

fig. 6 is a second perspective exploded view of a connector of a respiratory assistance system in an embodiment of the present application.

In the drawings, each reference numeral denotes: 1. a catheter assembly; 11. a first connection end; 12. a first abutting structure; 13. a first ramp structure; 14. a limit structure; 15. an exhalation catheter; 16. an aspiration conduit; 2. a seal ring; 3. a patient interface assembly; 31. a second connection end; 32. a second abutting structure; 33. a third abutting structure; 34. a second ramp structure; 35. a connecting pipe; 351. a first opening; 352. a second opening; 36. a first plug; 37. and a second plug.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present utility model and should not be construed as limiting the utility model, and all other embodiments, based on the embodiments of the present utility model, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-6, the present utility model provides a connector for a respiratory assistance system, comprising a catheter assembly 1, a sealing ring 2 and a patient interface assembly 3, wherein the catheter assembly 1 comprises a first connection end 11, the patient interface assembly 3 comprises a second connection end 31, the first connection end 11 and the second connection end 31 are coaxially nested, and the sealing ring 2 is clamped between the first connection end 11 and the second connection end 31.

In this embodiment, the first connection end 11 of the catheter assembly 1 and the second connection end 31 of the patient interface assembly 3 are coaxially nested, and the first connection end 11 abuts against the second connection end 31 in the axial direction, so that the first connection end 11 and the second connection end 31 can rotate relatively; meanwhile, through the sealing ring 2 clamped between the first connecting end 11 and the second connecting end 31, not only is rotation damping provided, but also a good and stable sealing effect between the first connecting end 11 and the second connecting end 31 is realized; because the catheter assembly 1 and the patient interface assembly 3 can rotate relatively, the relative positions of the catheter assembly 1 and the patient interface can be adjusted by rotation in the use process, dead zones in a gas loop are eliminated, and meanwhile, part of assemblies of the connector can be replaced at any time, so that the flexibility of the connector in use is improved.

Further, referring to fig. 2-5, the first connecting end 11 is inserted into the second connecting end 31, the sealing ring 2 surrounds the outer wall of the first connecting end 11, and the outer wall of the sealing ring 2 abuts against the inner wall of the second connecting end 31.

Specifically, the first connection end 11 and the second connection end 31 are both in a circular ring structure; the sealing ring 2 can be made of polymer soft elastic materials such as silica gel or rubber, the first connecting end 11 and the second connecting end 31 are both annular, and the outer diameter of the first connecting end 11 is smaller than the inner diameter of the second connecting end 31; the first connecting end 11 is inserted in the second connecting end 31, so that the catheter assembly 1 and the patient interface assembly 3 can relatively rotate, meanwhile, the sealing ring 2 is added at the connecting position of the first connecting end 11 and the second connecting end 31, the sealing ring 2 not only ensures the tightness of the catheter assembly 1 and the patient interface assembly 3, but also can provide rotation damping for the relative rotation of the catheter assembly 1 and the patient interface assembly 3, and in the use process, the dead zone in a gas loop can be eliminated by adjusting the relative positions of the catheter assembly 1 and the patient interface assembly 3, meanwhile, part of the components of the connector can be replaced at any time, and the flexibility of the connector in use is improved.

In other embodiments, the second connecting end 31 is inserted into the first connecting end 11, the sealing ring 2 surrounds the outer wall of the second connecting end 31, and the outer wall of the sealing ring 2 abuts against the inner wall of the first connecting end 11.

Specifically, in other embodiments, the inner diameter of the first connecting end 11 may be larger than the outer diameter of the second connecting end 31, so that the second connecting end 31 is inserted into the first connecting end 11, and the rotation damping of the relative rotation of the catheter assembly 1 and the patient interface assembly 3 is provided through the sealing ring 2 on one hand, and the tightness of the joint between the catheter assembly 1 and the patient interface assembly 3 is ensured on the other hand, so that the sealing performance of the whole product is ensured to be good and stable.

Further, referring to fig. 2-4, the catheter assembly 1 further includes a first abutting structure 12 protruding from the outer wall of the first connecting end 11, the patient interface assembly 3 includes a second abutting structure 32 and a third abutting structure 33 protruding from the inner wall of the second connecting end 31, the second abutting structure 32 abuts against the top side of the first abutting structure 12, the top side of the third abutting structure 33 abuts against the bottom side of the first abutting structure 12, and the bottom side of the sealing ring 2 abuts against the top side of the first abutting structure 12.

Specifically, the first abutting structure 12 is disposed at the bottom side of the first connecting end 11 and is a ring-shaped structure; the second connecting end 31 is integrally formed by two sections of ring structures with different inner diameters and a second abutting structure 32, four third abutting structures 33 are arranged on the inner wall of the second connecting end 31 with a large inner diameter at equal intervals, and the four third abutting structures 33 are positioned on the bottom side of the first abutting structure 12; the bottom side of the first abutment structure 12 abuts the top side of the third abutment structure 33, ensuring that the catheter assembly 1 does not move downwards relative to the patient interface assembly 3; the top side of the first abutment structure 12 abuts the bottom side of the second abutment structure 32, ensuring that the catheter assembly 1 does not move upwards relative to the patient interface assembly 3; the top side of the first abutting structure 12 abuts against the bottom side of the sealing ring 2, and the sealing ring 2 is prevented from falling down.

The size of the third abutment structure 33 may be set according to actual needs, and in other embodiments, the number of the third abutment structures 33 may be one, two, three, five, six, or the like.

Further, referring to fig. 3-4, the catheter assembly 1 includes a first ramp structure 13 disposed on a top side of the first connection end 11, and the patient interface assembly 3 includes a second ramp structure 34 disposed on a bottom side of the third abutment structure 33.

Specifically, the first inclined structures 13 are disposed around the first connection end 11, and the number of the second inclined structures 34 is four. In the actual assembly process, the first inclined surface structure 13 is arranged to facilitate the sealing ring 2 to be sleeved at the first connecting end 11; both the first ramp structure 13 and the second ramp structure 34 may facilitate assembly between the catheter assembly 1 and the patient interface assembly 3; the assembly difficulty of the whole product is reduced. In other embodiments, the number of second ramp structures 34 is set according to the number of third abutment structures 33.

Further, referring to fig. 2 and 4, the catheter assembly 1 further includes a limiting structure 14 disposed at the bottom of the first inclined surface structure 13 and protruding from the outer wall of the first connecting end 11.

Specifically, the limiting structure 14 is disposed around the first connecting end 11, and the sealing ring 2 is located below the limiting structure 14, so that the sealing ring 2 can be prevented from moving upwards to a certain extent.

Further, referring to fig. 2, 5 and 6, the patient interface assembly 3 further includes a connecting tube 35 at the top end of the second connecting end 31, the connecting tube 35 having a first opening 351 and a second opening 352, the first opening 351, the second opening 352, the first connecting end 11 and the catheter assembly 1 being in communication with each other.

Specifically, the first opening 351 and the second opening 352 are located at the upper left and upper right of the second connection end 31, respectively. Wherein the first opening 351 is a patient end, the first opening 351 is adapted to be coupled to an external component during use of the connector, such as the first opening 351 may be coupled to a mask tracheal mask, nasal cannula, or the like.

Further, referring to fig. 5 and 6, the patient interface assembly 3 further includes a first plug 36 for plugging the first opening 351 and a second plug 37 for plugging the second opening 352, the second plug 37 being provided with a notch (not shown) in communication with the second opening 352.

Specifically, the first plug 36 and the second plug 37 may be made of a polymer soft elastic material such as silica gel or rubber; the second plug 37 can be used to block the second opening 352 by using the deformation amount of the second plug during the assembly process; when the connector is idle and the first opening 351 is not connected with an external component, the first opening 351 can be plugged by the deformation amount of the first plug 36; the second plug 37 is provided with a notch, and medical staff can inject external aerosol medicine sources and the like into the connector according to requirements in the using process of the connector; or the external atomizer and the like are communicated with the connector through the notch.

Further, referring to fig. 5 and 6, the second plug 37 is a check valve structure, and the check valve is oriented from the notch to the connecting tube 35.

Specifically, the gap is a small gap arranged on the second plug 37, and because the second plug 37 is made of soft materials such as silica gel, the gap can be automatically plugged in the normal state of the second plug 37, the small gap is difficult to find, and the gap can be clearly seen only if a user manually kneads the second plug 37; under the conventional condition, external air cannot enter the connector through the notch, and the air in the connector cannot flow out of the outside through the notch; when the connector is used, a user can inject special air-soluble substances into the connector from the notch of the second plug 37 through a needle tube and the like, so the second plug 37 can be regarded as a one-way valve structure; by manual operation, the medicine can only enter the connecting tube 35 through the second plug 37 and cannot come out of the connecting tube 35; and the gas does not flow out of the interior of the connection tube 35 through the second plug 37.

Further, referring to fig. 1-6, the catheter assembly 1 includes an exhalation catheter 15 and an inhalation catheter 16 disposed on the bottom side of the first connection end 11 and symmetrically disposed along the centerline of the first connection end 11, and the exhalation catheter 15, the inhalation catheter 16, the second connection end 31 and the patient interface assembly 3 are in communication with each other.

Specifically, the exhalation tube 15, the inhalation tube 16, the second connection end 31, the first connection end 11, the first opening 351 and the second opening 352 are mutually communicated, and in the use process of the connector, the first opening 351 is communicated with an external component, gas to be absorbed passes through the first connection end 11, the second connection end 31 and the connection pipe 35 from the inhalation tube 16, then passes through the first opening 351 and the external component, and exhaled gas passes through the first opening 351, the connection pipe 35, the second connection end 31 and the first connection end 11 from the external component and then passes through the exhalation tube 15.

It should be noted that the illustrated exhalation and inhalation conduits 15 and 16 are for convenience of description only and are not intended to indicate or imply that the exhalation and inhalation conduits 15 and 16 must be constructed and operated in a specific orientation in an actual product in which both the exhalation and inhalation conduits 15 and 16 are only connected to external devices and are actually functioning, and that exhaled gas may pass through the illustrated inhalation conduit 16 and gas requiring absorption may also pass through the illustrated exhalation conduit 15.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.

The foregoing is a description of the embodiments of the present utility model, and is not to be construed as limiting the utility model, since modifications in the detailed description and the application scope will become apparent to those skilled in the art upon consideration of the teaching of the embodiments of the present utility model.

Claims (10)

1. The utility model provides a connector of respiratory assist system, its characterized in that includes pipe subassembly, sealing washer and patient interface assembly, the pipe subassembly includes first link, patient interface assembly includes the second link, first link with the coaxial nested setting of second link, so that pipe subassembly with patient interface assembly can rotate relatively, the sealing washer press from both sides tightly in between the first link with the second link.

2. The connector of claim 1, wherein the first connection end is inserted into the second connection end, the sealing ring surrounds an outer wall of the first connection end, and an outer wall of the sealing ring abuts against an inner wall of the second connection end.

3. The connector of claim 1, wherein the second connection end is inserted into the first connection end, the sealing ring surrounds an outer wall of the second connection end, and an outer wall of the sealing ring abuts against an inner wall of the first connection end.

4. The connector of claim 1, wherein the conduit assembly further comprises a first abutment structure protruding from an outer wall of the first connection end, the patient interface assembly comprises a second abutment structure, and a third abutment structure protruding from an inner wall of the second connection end, the second abutment structure abutting a top side of the first abutment structure, a top side of the third abutment structure abutting a bottom side of the first abutment structure, a bottom side of the sealing ring abutting a top side of the first abutment structure.

5. The connector of the respiratory assistance system of claim 4, wherein the conduit assembly includes a first ramp structure disposed on a top side of the first connection end and the patient interface assembly includes a second ramp structure disposed on a bottom side of the third abutment structure.

6. The connector of claim 5, wherein the conduit assembly further comprises a stop structure disposed at the bottom of the first ramp structure and protruding from the outer wall of the first connection end.

7. The connector of the respiratory assistance system of claim 1, wherein the patient interface assembly further comprises a connecting tube at a top end of the second connecting end, the connecting tube having a first opening and a second opening, the first opening, the second opening, the first connecting end, and the conduit assembly communicating with one another.

8. The connector of the respiratory assistance system of claim 7, wherein the patient interface assembly further comprises a first plug for plugging a first opening and a second plug for plugging a second opening, the second plug being provided with a notch in communication with the second opening.

9. The connector of the respiratory assistance system of claim 8, wherein the second plug is a one-way valve structure, the one-way valve being oriented from the notch to the connecting tube.

10. The connector of claim 1, wherein the conduit assembly includes an exhalation conduit and an inhalation conduit disposed on a bottom side of the first connection end and symmetrically disposed along a centerline of the first connection end, the exhalation conduit, inhalation conduit, second connection end and patient interface assembly being in communication with one another.