CN218900525U

CN218900525U - Air passage

Info

Publication number: CN218900525U
Application number: CN202221859192.8U
Authority: CN
Inventors: 张煜彦; 吴清; 胡佳乐; 孙鑫
Original assignee: Nanjing Nuoling Biotechnology Co ltd
Current assignee: Nanjing Nuoling Biotechnology Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2023-04-25
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses a gas circuit, and relates to the technical field of pipeline connectors. The gas circuit comprises two communicated tee pipe fittings, the tee pipe fittings are provided with a first joint, a second joint and a third joint which are mutually communicated, the second joint comprises an outer joint and an inner joint which are coaxially sleeved in the same direction, and the inner joint protrudes out of the outer joint. Through the mode that the second joint of tee bend pipe fitting sets up to the nipple overcoat in the gas circuit and is equipped with the outer joint, the outer joint can be linked together with breathing machine, anesthesia machine air outlet pipeline and the great connecting pipe of size of corresponding size, the nipple can be linked together with the less connecting pipe of size, and the nipple is longer than the outer joint for can not interfere with the outer joint when the connecting pipe of size is established to the cover on the nipple, guarantee that nipple and outer joint all can be used to connect, make this gas circuit have the compatibility to the interface size that is applicable to different objects, reduced the degree of difficulty of use and management.

Description

Air passage

Technical Field

The utility model relates to the technical field of pipeline connectors, in particular to a gas circuit.

Background

Nitric oxide has recently been found to play a role in transmitting important messages and regulating cellular functions in the human body, helping to promote blood circulation in the body, rapidly diffusing across biological membranes without any intervening mechanism, and transmitting information generated by a cell to cells surrounding it. Nitric oxide has the characteristics of multiple biological functions, is very easy to participate in electron transfer reaction and is added into the oxidation-reduction process of the organism. Direct inhalation nitric oxide therapy has been demonstrated to improve body oxygenation capacity as a therapeutic means for treating neonatal persistent pulmonary hypertension, and to reduce high risk critical in vitro cardiopulmonary support therapy, and artificial administration of appropriate and controlled application of nitric oxide can specifically reduce pulmonary hypertension and improve oxygenation. At present, nitric oxide inhalation therapy is widely applied to neonatal respiratory medicine, and is also applicable to clinical medicine fields such as critical care, cardiovascular and thoracic endovascular surgery, respiratory medicine, anesthesia department and the like.

When the nitric oxide inhalation treatment is carried out, medical nitric oxide gas is required to be introduced into an inhalation branch of a respirator or an anesthetic machine and is mixed with fresh air flow of the inhalation branch to be conveyed to a patient, at the moment, a three-way pipe fitting is required, one of the three-way pipe fitting is connected with a standard pipeline of the respirator or the anesthetic machine, and the other of the three-way pipe fitting is connected with a therapeutic gas source; meanwhile, when the nitric oxide inhalation treatment is carried out, a sampling gas path is also required to be arranged, and the mixed gas flow is sampled and detected, such as the concentration of therapeutic gas, the concentration of oxygen or the concentration of harmful gas and the like in the mixed gas flow is detected, and at the moment, a tee pipe fitting is also required, one vent is connected with the mixed gas end, the other vent is connected with the sampling gas path, and the other vent is connected with a connecting pipeline. However, the connecting pipeline has various specifications suitable for adults, children and infants due to different treatment objects, so that the management of the existing three-way pipe fitting is very confusing, and when the three-way pipe fitting is used, the switching pipe fitting is also often required to be additionally arranged, and the three-way pipe fitting is very troublesome.

Based on the foregoing, there is a need for an air circuit that is suitable for connecting pipelines and patient-side devices of various specifications, and reduces the difficulty of use and management.

Disclosure of Invention

The utility model aims to provide a gas circuit which can be suitable for connecting pipelines with various specifications and patient-end equipment, and reduces the difficulty of use and management.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a gas circuit, includes the tee bend pipe fitting of two intercommunication, and above-mentioned tee bend pipe fitting has first joint, second joint and the third joint of intercommunication each other, and above-mentioned second joint is including the outer joint and the inner joint that the coaxial cover was established, and the outstanding above-mentioned outer joint of above-mentioned inner joint setting.

Optionally, at least one of the first connectors has an inner diameter of 15mm to 22mm; alternatively, at least one of the first connectors has an outer diameter of 15mm to 22mm.

Optionally, at least one of said outer joints has an inner diameter of 22mm; alternatively, at least one of the outer joints has an outer diameter of 22mm.

Optionally, at least one of said nipples has an outer diameter of 15mm; alternatively, at least one of the inner joints has an inner diameter of 15mm; or, at least one of the inner joints has an outer diameter of 8mm to 10mm; alternatively, at least one of the internal joints has an internal diameter of 8mm to 10mm.

Optionally, the outer diameter of the first joint of at least one of the tee fittings is 15mm, the outer diameter of the outer joint is 22mm, and the outer diameter of the inner joint is 15mm.

Optionally, the outer diameter of the first joint of at least one of the tee fittings is 15mm, the outer diameter of the outer joint is 22mm, and the outer diameter of the inner joint is 10mm.

Optionally, a reinforcing rib is arranged at the joint of the inner joint and the outer joint of at least one of the tee pipe fittings.

Optionally, the gas circuit further comprises a connecting pipeline, and the two tee pipe fittings are respectively and fixedly connected to the gas inlet end and the gas outlet end of the connecting pipeline.

Optionally, the third joint of one of the three-way pipe fittings is a luer female joint, the third joint of the other one of the three-way pipe fittings is a luer male joint, the third joint of the three-way pipe fitting at the air inlet end is used for introducing air, and the third joint of the three-way pipe fitting at the air outlet end is used for extracting air.

Optionally, the third joint of one of the three-way pipe fittings is a luer female joint, and the third joint of the other one of the three-way pipe fittings is a luer male joint, and the luer female joint and the luer male joint are in butt joint.

The gas circuit provided by the utility model has the beneficial effects that: through setting up the mode that the nipple overcoat was equipped with the outer joint with the second of tee bend pipe fitting in the gas circuit, the outer joint can be linked together with breathing machine, anesthesia machine air outlet pipeline and the great connecting line of size (for example, be applicable to adult's pipeline), the nipple can be linked together with the connecting line of size less (for example, be applicable to children or infant's pipeline), and the nipple is longer than the outer joint, make can not overlap or joint strength is weaker because of interfering with the outer joint when establishing the connecting line of size less on the nipple, guarantee that nipple and outer joint all can be used to connect, make this gas circuit have the compatibility to the connecting line that is applicable to different objects, the degree of difficulty of use and management has been reduced.

Drawings

FIG. 1 is a perspective view of a first three-way pipe fitting provided by the present utility model;

FIG. 2 is a perspective view of the first three-way pipe fitting of the present utility model with the joint plug removed;

FIG. 3 is a cross-sectional view of a first three-way fitting according to the present utility model;

FIG. 4 is a view showing the construction of a reinforcing rib of a first three-way pipe fitting according to the present utility model;

FIG. 5 is a perspective view of a second three-way fitting according to the present utility model;

FIG. 6 is a perspective view of a second three-way fitting according to the present utility model with the fitting plug removed;

FIG. 7 is a cross-sectional view of a second three-way fitting according to the present utility model;

fig. 8 is a schematic diagram of connection of the gas paths provided by the present utility model.

In the figure:

1. a first joint;

2. a second joint; 20. an outer joint; 21. an inner joint;

3. a third joint; 30. luer mother head; 31. luer male;

4. a joint plug;

5. reinforcing ribs;

6. and a connecting pipeline.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus 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 relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The specific structure of the gas circuit provided by the present utility model is described below with reference to fig. 1 to 8. For convenience of explanation, the gas path provided by the utility model is described by taking gas treatment as a use scene, but the application range of the gas path is not limited to the treatment field, and the gas path can be used for liquid transportation, powder transportation and the like.

Specifically, the gas path provided by the utility model comprises two tee pipe fittings which are directly communicated or indirectly communicated through a connecting pipeline 6, as shown in fig. 1 and 5, each tee pipe fitting is provided with a first joint 1, a second joint 2 and a third joint 3 which are mutually communicated, and gas can flow between the three joints according to a preset direction. Wherein, the second joint 2 includes the outer joint 20 and the inner joint 21 that the syntropy and coaxial cover were established, and the protruding outer joint 20 setting of inner joint 21 for outer joint 20 and inner joint 21 can dock with the connecting line 6 of different specifications, and when needs use inner joint 21 to peg graft to connecting line 6, connecting line 6 can be connected with inner joint 21, and can not interfere with outer joint 20, influence the joint strength between inner joint 21 and the connecting line 6.

The length of the inner joint 21 protruding out of the outer joint 20 is selected according to the specific material, the material of the connecting pipe 6, and the like, and is specifically selected so as to satisfy the connection strength between the connecting pipe 6 and the inner joint 21. For example, for a three-way pipe fitting made of glass or resin, the inner joint 21 protrudes from the outer joint 20 by at least 14.5mm, i.e. the connection length between the connecting pipeline 6 and the inner joint 21 is not less than 14.5mm, so that the pulling force required for separating the connecting pipeline 6 from the inner joint 21 is greater than 20N, which can meet the connection strength requirements of most use scenes and can also meet the regulations in YY1040.1-2015 anesthesia and respiratory apparatus conical joint. Of course, it will be appreciated that the present utility model is not particularly limited to the length of the inner joint 21 that protrudes from the outer joint 20, based on a variety of factors such as materials, usage scenarios, connection mating relationships (e.g., mating tolerances), and the like.

Through setting the second joint 2 of tee bend pipe fitting in the gas circuit as the mode that the outer joint 20 endotheca was equipped with the nipple 21, outer joint 20 can be with the breathing machine of corresponding size (for example, michaeli medical treatment SV 800), anesthesia machine (for example, GE medical treatment care station 30) give vent to anger pipeline or other bigger connecting tube 6 (for example, be applicable to adult's pipeline), nipple 21 can be linked together with the connecting tube 6 of size (for example, be applicable to children or baby's pipeline), and nipple 21 is longer than outer joint 20, can not lead to the fact the condition that can't overlap or joint strength is weaker because of interfering with outer joint 20 when establishing the connecting tube 6 of size on nipple 21, guarantee that nipple 21 and outer joint 20 all can be used for the connection, through rationally setting up the size of each joint in every tee bend pipe fitting, and can connect two tee bend pipe fittings in multiple mode, make this gas circuit have the compatibility for the connecting tube 6 that is applicable to different objects, the difficulty of using and managing has been reduced.

It is emphasized that the size specification of each interface in the tee pipe fitting is set according to actual requirements, and the pipelines connected with each interface in the tee pipe fitting during use are also set according to actual requirements. For example, taking gas treatment as an example, the adult pipeline, the child pipeline and the infant pipeline are all connecting pipelines 6 suitable for gas treatment, the joint specification of the adult pipeline is generally 22mm in inner diameter or 22mm in outer diameter, the joint specification of the child pipeline is generally 15mm in inner diameter or 15mm in outer diameter, the joint specification of the infant pipeline is generally 8mm-10mm in inner diameter or 8mm-10mm in outer diameter, the outlet port sizes of the breathing machine and the anesthesia machine comprise various specifications such as 15mm-22mm in outer diameter, 15mm-22mm in inner diameter and the like, and therefore the size specification of each joint in the three-way pipe fitting comprises various sizes.

For example, in some embodiments, the outer diameters of the first joints 1 and the outer joints 20 of the three-way pipe fittings in the air path are 15mm and 22mm, and the outer diameters of the inner joints 21 are 15mm, so that the first joints 1 of the three-way pipe fittings can be correspondingly connected with a respirator with a corresponding size, an air outlet pipeline of an anesthesia machine or patient-end equipment with an interface size of 15mm, and the outer joints 20 of the two three-way pipe fittings are correspondingly connected with a connecting pipeline 6 suitable for adults to construct the air path, or the inner joints 21 of the two three-way pipe fittings are correspondingly connected with the connecting pipeline 6 suitable for children to construct the air path. At this time, the gas circuit including this tee bend pipe fitting just can selectively replace the connecting line 6 that is applicable to children with using the connecting line 6 that is applicable to adult in order to connect the external connection 20 of two tee bend pipe fittings, avoid missing the best treatment window period because of can't find the connecting line 6 that is applicable to children of suitable specification in time, also can reduce the management pressure to connecting line 6.

In some parallel embodiments, the outer diameters of the first connectors 1 and the

outer connectors

20 and 21 of the three-way pipe fittings in the air path are 15mm and 22mm, respectively, so that the first connectors 1 and the corresponding size of the breathing machine, the anesthesia machine air outlet pipeline or the patient end equipment with the interface size of 15mm can be correspondingly connected, the outer connectors 20 of the two three-way pipe fittings are correspondingly connected with the connecting pipeline 6 suitable for adults to form the air path, the inner connectors 21 of the two three-way pipe fittings and the connecting pipeline 6 suitable for infants can be correspondingly connected to form the air path, the effect of selective replacement can be achieved, the treatment air path can be timely constructed, and the management pressure on the connecting pipeline 6 can be reduced.

Of course, in actual use, it is necessary to consider not only the size of the corresponding interface specification but also whether the connection is an outside connection or an inside connection. As shown in fig. 3 and 7, in some embodiments, a pluggable space is left between the outer joint 20 and the inner joint 21, so that some connecting pipelines 6 with thinner wall thickness can be plugged inside the outer joint 20; the protruding nipple 21 may be provided with either an inner or an outer connection, depending on the actual need. Therefore, the specification and the size of each joint and the connection mode are not particularly limited in the utility model, and the gas path comprises the three-way pipe fitting provided by the utility model, which is within the scope of the utility model.

Further, two identical tee pipe fittings can be selected according to actual demands in the gas circuit, and two different tee pipe fittings can also be selected according to actual demands.

Illustratively, the first joint 1 of a three-way pipe fitting has an outer diameter of 15mm, the outer joint 20 has an outer diameter of 22mm, the inner joint 21 has an outer diameter of 10mm, and the outer joint 20 is connected to one end of the connecting pipe 6 having an interface specification of 22mm. The first joint 1 of the other three-way pipe fitting has an outer diameter of 22mm, the outer joint 20 has an outer diameter of 22mm, and the inner joint 21 has an outer diameter of 15mm. When a patient end device (such as a breathing mask) with the interface specification of 15mm is needed to be docked, the first joint 1 of the other three-way pipe fitting can be connected with the other end of the connecting pipeline 6 with the interface specification of 22mm, and the internal joint 21 of the three-way pipe fitting is utilized to dock the patient end device with the interface specification of 15mm; when the patient end device with the interface specification of 22mm in inner diameter is needed to be docked, the first joint 1 or the outer joint 20 of the other three-way pipe fitting can be connected with the other end of the connecting pipeline 6 with the interface specification of 22mm in inner diameter.

Obviously, the connection mode between the two tee pipes can be set according to actual requirements, the first joints 1 of the two tee pipes can be connected with each other, or the first joint 1 of one tee pipe is connected with the outer joint 20 of the other tee pipe through a connecting pipeline 6, the connection mode between the two tee pipes is not particularly limited in the utility model, and the connection mode is only required to be capable of being connected to form a gas circuit and is within the protection scope of the utility model.

Illustratively, for example, in the present embodiment, the first joint 1 of one three-way tube is connected to the outlet line (or outlet port) of a respirator or anesthesia machine, the third joint 3 of the three-way tube is used for introducing therapeutic gas, the outer joint 20 of the second joint 2 of the three-way tube is connected to one end of the connecting line 6, and the other end of the connecting line 6 is connected to the first joint 1 of the other three-way tube. The third joint 3 of the other three-way pipe fitting is used for leading out sampling gas, the second joint 2 is connected to patient end equipment such as a breathing mask, an air suction pipe and the like used by a patient, and by utilizing the outer joint 20 and the inner joint 21 of the second joint 2, the outer joint 20 can be connected with the patient end equipment suitable for adults, and the inner joint 21 can be connected with the patient end equipment suitable for children or infants, so that the second joint 2 can be compatible with a plurality of different patient end equipment.

In some other embodiments, the second joint 2 of one three-way pipe fitting is connected to one end of the connecting pipeline 6, the second joint 2 of another three-way pipe fitting is also connected to the other end of the connecting pipeline 6, and the second joints 2 of two three-way pipe fittings each have an outer joint 20 and an inner joint 21, so that the connecting pipeline 6 can adopt various different specifications, and is especially suitable for the situations requiring rapid treatment such as emergency treatment, and the window time delaying the emergency treatment caused by the lack of the connecting pipeline 6 with specific specifications can be avoided.

In some other parallel embodiments, the second joint 2 of one three-way pipe fitting is connected to the air outlet pipeline (or air outlet port) of the breathing machine or the anesthesia machine, the first joint 1 of the three-way pipe fitting is connected to one end of the connecting pipeline 6, the other end of the connecting pipeline 6 is connected with the first joint 1 of another three-way pipe fitting, the second joint 2 of the other three-way pipe fitting is connected to a patient end device such as a breathing mask, an air suction pipe and the like used by a patient, and the second joints 2 of the two three-way pipe fittings are respectively provided with an outer joint 20 and an inner joint 21, so that the breathing machine or the air outlet port (or air outlet pipeline) of the anesthesia machine of various specifications can be further compatible on the basis of compatibility with the patient end device of various specifications.

In some more specific embodiments, it is also possible that two three-way pipes are connected to each other by a third joint 3 to form a four-way assembly. For example, the third joint 3 of one three-way pipe fitting is a luer female joint 30, the third joint 3 of the other three-way pipe fitting is a luer male joint 31, the luer female joint 30 and the luer male joint 31 are in butt joint, and the three-way pipe fitting can be quickly connected to form a four-way component with pipeline compatibility, so that diversified pipeline construction requirements are met. Of course, the third connector 3 may be directly connected with the luer female connector 30 and the luer male connector 31, or may be directly connected with other connector types commonly used in other fields, or indirectly connected through common pipelines (such as silicone tubes).

Optionally, a reinforcing rib 5 is arranged at the joint of the inner joint 21 and the outer joint 20 of at least one tee pipe fitting in the air path. In the present embodiment, as shown in fig. 4, the reinforcing ribs are provided in a cross shape, increasing the structural strength between the inner joint member 21 and the outer joint member 20 from a plurality of directions. Of course, the reinforcing ribs may be provided in various other forms such as a zigzag form, so long as the effect of enhancing the structural strength between the inner joint 21 and the outer joint 20 is achieved, and all the reinforcing ribs are within the scope of the present utility model.

The joint pattern of each joint is also set according to the field of use. For example, in the therapeutic field, as the plug of the sampling gas circuit is commonly used as a Luer connector (Luer tip), as shown in fig. 2 and 6, the third connector 3 can be configured as a Luer connector (Luer male head 31 or Luer female head 30), and is provided with a corresponding connector plug 4, so that the sampling gas circuit can be conveniently abutted and the sanitary requirement can be met; in the hydraulic field, the plug of the hydraulic pipeline is commonly used as a park joint, so that the third joint 3 can be arranged as a park joint, and the hydraulic pipeline can be conveniently docked.

Further, in the case of gas treatment, as shown in fig. 8, the third connector 3 of the three-way pipe fitting for introducing the therapeutic gas in the gas path is set as a luer male head 31, the third connector 3 of the other three-way pipe fitting for introducing the sampling gas is set as a luer female head 30, the two three-way pipe fittings are connected through the connecting pipeline 6, the three-way pipe fitting for introducing the therapeutic gas is located at the gas inlet end of the connecting pipeline 6, and the three-way pipe fitting for introducing the sampling gas is located at the gas outlet end of the connecting pipeline 6. Because the luer female head 30 and the luer male head 31 have a one-to-one corresponding connection relationship, the third joints 3 of the two three-way pipe fittings form a foolproof design, and a sampling person can clearly distinguish whether the three-way pipe fitting is positioned at the upstream or the downstream of the air passage according to the two different third joints 3, so that the interface of the sampling air passage is prevented from being butted with the third joint 3 of the three-way pipe fitting positioned at the upstream of the air passage, and invalid sampling is caused. Of course, it can be understood that the third connector 3 of the three-way pipe fitting for introducing the therapeutic gas in the gas path can be set as the luer female connector 30, and the third connector 3 of the other three-way pipe fitting for introducing the sampling gas is set as the luer male connector 31, so long as the third connectors 3 of the two three-way pipe fittings are different, the interface of the sampling gas path is only in one-to-one correspondence with the third connector 3 of one three-way pipe fitting in the gas path, the fool-proof design can be satisfied, and invalid sampling is avoided.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The utility model provides a gas circuit, its characterized in that includes two tee bend pipe fitting of intercommunication, tee bend pipe fitting has first joint (1), second joint (2) and third joint (3) of intercommunication each other, second joint (2) are including the outer joint (20) and the nipple (21) that the syntropy and coaxial cover were established, nipple (21) outstanding outer joint (20) set up.

2. A gas circuit according to claim 1, wherein,

the inner diameter of at least one first joint (1) is 15mm-22mm;

alternatively, at least one of the first connectors (1) has an outer diameter of 15mm to 22mm.

3. A gas circuit according to claim 1, wherein,

at least one of said outer joints (20) has an inner diameter of 22mm;

alternatively, at least one of the outer joints (20) has an outer diameter of 22mm.

4. A gas circuit according to claim 1, wherein,

at least one of said inner joints (21) has an outer diameter of 15mm;

alternatively, at least one of said nipples (21) has an internal diameter of 15mm;

alternatively, at least one of said inner joints (21) has an outer diameter of 8mm-10mm;

alternatively, at least one of said inner joints (21) has an inner diameter of 8mm-10mm.

5. A gas circuit according to claim 4, wherein the outer diameter of the first joint (1) of at least one of the three-way pipe elements is 15mm, the outer diameter of the outer joint (20) is 22mm, and the outer diameter of the inner joint (21) is 15mm.

6. A gas circuit according to claim 4, wherein the outer diameter of the first joint (1) of at least one of the three-way pipe elements is 15mm, the outer diameter of the outer joint (20) is 22mm, and the outer diameter of the inner joint (21) is 10mm.

7. A gas circuit according to claim 1, characterized in that the junction of the inner joint (21) and the outer joint (20) of at least one of the three-way pipe elements is provided with a reinforcing rib (5).

8. A gas circuit according to any one of claims 1-7, further comprising a connecting pipe (6), two of said three-way pipe elements being fixedly connected to the gas inlet and outlet ends of said connecting pipe (6), respectively.

9. A gas circuit according to claim 8, characterized in that the third joint (3) of one of the three-way pipes is a luer female (30) and the third joint (3) of the other three-way pipe is a luer male (31), the third joint (3) of the three-way pipe at the gas inlet end being for introducing gas and the third joint (3) of the three-way pipe at the gas outlet end being for extracting gas.

10. A gas circuit according to any one of claims 1-7, wherein the third joint (3) of one of the three-way pipes is a luer female head (30) and the third joint (3) of the other three-way pipe is a luer male head (31), the luer female head (30) and the luer male head (31) being in abutment.