Three-way connector, breathing pipeline of anesthesia breathing machine and anesthesia breathing machine

Abstract

The utility model provides a three-way connector, a breathing pipeline of an anesthesia breathing machine and the anesthesia breathing machine, and relates to the technical field of medical instruments. The three-way connector comprises a first communicating branch pipe, a second communicating branch pipe and a third communicating branch pipe which are fixed to one another, a blocking plate is arranged in the second communicating branch pipe, and the blocking plate is arranged in the axial direction of the second communicating branch pipe so as to divide the second communicating branch pipe into a first channel and a second channel; a first sealing connecting piece is arranged at the first end of the first communicating branch pipe, the second end of the first communicating branch pipe is communicated with a first channel of the first end of the second communicating branch pipe in a sealing mode, and a second sealing connecting piece is arranged at the second end of the second communicating branch pipe. A second passage at the first end of the second communicating branch pipe is hermetically communicated with the first end of the third communicating branch pipe; and a third sealing connecting piece is arranged at the second end part of the third communicating branch pipe. Based on the technical scheme, the carbon dioxide absorption tank can be conveniently detached from the breathing pipeline of the anesthesia breathing machine and replaced through the three-way connector.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a three-way connector, an anesthesia breathing machine breathing circuit and an anesthesia breathing machine. Background Art

[0002] Anesthesia ventilators play a vital role in the modern medical field and provide important guarantees for the safety and success of surgery. During general anesthesia surgery, anesthesia ventilators connect patients by inserting endotracheal tubes to control the patient's breathing and ensure the stability of the patient's physiological parameters. The exhaled gas (mixed gas containing carbon dioxide, mainly oxygen, or anesthetic gas) in the breathing circuit of the anesthesia ventilator is absorbed by the carbon dioxide absorption tank and then re-enters the breathing circuit for use, ensuring that the patient will not repeatedly inhale this gas, thereby ensuring the patient's life safety.

[0003] Among them, the soda lime in the carbon dioxide absorption tank reacts chemically with the carbon dioxide in the breathing circuit to remove the carbon dioxide in the patient's exhaled air. When the soda lime loses its absorption capacity after a certain period of use, the carbon dioxide absorption tank needs to be removed and replaced. Therefore, it is necessary to design a three-way connector that can facilitate the removal and replacement of the carbon dioxide absorption tank from the breathing circuit of the anesthesia ventilator. Utility Model Content

[0004] In response to the above-mentioned problems in the prior art, the present application proposes a three-way connector, an anesthesia ventilator breathing circuit and an anesthesia ventilator, which can facilitate the removal and replacement of a carbon dioxide absorption tank from the anesthesia ventilator breathing circuit.

[0005] One aspect of the utility model provides a three-way connector, which includes a first connecting branch, a second connecting branch and a third connecting branch that are fixed to each other, a baffle plate being provided in the second connecting branch, the baffle plate being arranged along the axial direction of the second connecting branch to separate the second connecting branch into a first passage and a second passage, a first end portion of the first connecting branch being provided with a first sealing connector, the first end portion of the first connecting branch being able to be sealed and connected to an outlet pipe of a breathing circuit of an anesthesia respirator through the first sealing connector, the second end of the first connecting branch being sealed and connected to the first passage of the first end of the second connecting branch, the second end of the second connecting branch being provided with a second sealing connector, the second end of the second connecting branch being able to be sealed and connected to a carbon dioxide absorption tank through the second sealing connector, the second passage of the first end of the second connecting branch being sealed and connected to the first end of the third connecting branch, the second end of the third connecting branch being provided with a third sealing connector, the second end of the third connecting branch being able to be sealed and connected to an air inlet pipe of the anesthesia respirator through the third sealing connector.

[0006] As a further improvement of the above technical solution:

[0007] The above-mentioned three-way connector, further, the first sealing connection piece is an annular groove provided on the first connecting branch pipe, and the air outlet pipe of the breathing circuit of the anesthesia ventilator can be sleeved on the first connecting branch pipe and fixed in the annular groove.

[0008] The above-mentioned three-way connector, further, has a radial dimension of the first end of the first connecting branch pipe that is smaller than a radial dimension of the first connecting branch pipe at a position located in the annular groove.

[0009] In the above three-way connector, further, the second sealing connection piece is a first external thread provided on the outer side wall of the second connecting branch pipe, and the carbon dioxide absorption tank can be connected to the first external thread in a thread-sealed manner.

[0010] The above-mentioned three-way connector, further, has a retaining ring on the outer side wall of the second connecting branch pipe, and the carbon dioxide absorption tank can be connected to the first external thread in a sealing manner to abut against the retaining ring.

[0011] The above-mentioned three-way connector, further, has a second external thread on the outer side wall of the third connecting branch pipe, and a plurality of arc-shaped clamping plates are circumferentially spaced apart at the second end of the third connecting branch pipe, and the third sealing connection piece includes a threaded ring, which is sleeved on the third connecting branch pipe and cooperates with the second external thread, and the plurality of arc-shaped clamping plates can be sleeved on the air inlet pipe of the anesthesia respirator, and the axial movement of the threaded ring along the third connecting branch pipe can enable the plurality of arc-shaped clamping plates to be clamped on the air inlet pipe of the anesthesia respirator.

[0012] The above-mentioned three-way connector, further, the outer side wall of the arc-shaped clamping plate is provided with an inclined abutment surface extending along the axial direction of the third connecting branch pipe, and the threaded ring abuts against the inclined abutment surface and moves along the axial direction of the third connecting branch pipe so that multiple arc-shaped clamping plates can be gradually clamped on the air inlet pipe of the anesthesia ventilator.

[0013] Another aspect of the utility model provides a breathing circuit of an anesthesia ventilator, wherein the breathing circuit of the anesthesia ventilator comprises the three-way connector as described above.

[0014] As a further improvement of the above technical solution:

[0015] The above-mentioned anesthesia ventilator breathing circuit further includes an air outlet pipe, and the first end of the first connecting branch pipe is sealed and connected to the air outlet pipe through the first sealing connector.

[0016] Another aspect of the utility model provides an anesthesia breathing machine, wherein the anesthesia breathing machine comprises the anesthesia breathing machine breathing circuit as described above.

[0017] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the utility model can be achieved.

[0018] The utility model provides a three-way connector, anesthesia breathing machine breathing tube and anesthesia breathing machine, which have at least the following beneficial effects compared with the prior art: when in use, the first end of the first connecting branch of the three-way connector is sealed and connected with the outlet pipe of the breathing tube of the anesthesia breathing machine through the first sealing connector, the second end of the second connecting branch of the three-way connector is sealed and connected with the carbon dioxide absorption tank through the second sealing connector, and the second end of the third connecting branch of the three-way connector is sealed and connected with the air inlet pipe of the anesthesia breathing machine through the third sealing connector, and the gas exhaled by the user of the anesthesia breathing machine enters the first connecting branch along the outlet pipe of the breathing tube of the anesthesia breathing machine, and then enters the first passage along the first connecting branch, and then enters the carbon dioxide absorption tank along the first passage, and the carbon dioxide in the gas is absorbed by the carbon dioxide absorption tank, and the remaining gas enters the second passage, and then enters the third connecting branch along the second passage, and finally enters the air inlet pipe of the anesthesia breathing machine along the third connecting branch. When the carbon dioxide absorption tank needs to be replaced, the carbon dioxide absorption tank can be removed from the second connecting branch by unlocking the second sealing connector, and the replaced carbon dioxide absorption tank is sealed and installed on the second end of the second connecting branch through the second sealing connector. The three-way connector can facilitate the removal and replacement of the carbon dioxide absorber from the breathing pipeline of the anesthesia ventilator.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0022] Figure 1 The structure diagram of the three-way connector provided by the embodiment of the utility model is shown Figure 1 ;

[0023] Figure 2 The structure diagram of the three-way connector provided by the embodiment of the utility model is shown Figure 2 ;

[0024] Figure 3 A cross-sectional view of a three-way connector provided by an embodiment of the utility model is shown.

[0025] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0026] Description of reference numerals:

[0027] 100-three-way connector, 110-first connecting branch, 111-annular groove, 120-second connecting branch, 121-blocking plate, 122-first passage, 123-second passage, 124-first external thread, 125-retaining ring, 130-third connecting branch, 131-second external thread, 132-arc clamping plate, 133-threaded collar, 134-inclined abutting surface. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] The utility model will be further described below in conjunction with the accompanying drawings.

[0034] The embodiment of the utility model provides a three-way connector 100, which can facilitate the removal and replacement of a carbon dioxide absorption tank from a breathing tube of an anesthesia breathing machine.

[0035] See also Figure 1 , Figure 2 as well as Figure 3The three-way connector 100 provided by the embodiment of the utility model comprises a first connecting branch 110, a second connecting branch 120 and a third connecting branch 130 fixed to each other, a baffle plate 121 is provided in the second connecting branch 120, and the baffle plate 121 is arranged along the axial direction of the second connecting branch 120 to separate the second connecting branch 120 into a first passage 122 and a second passage 123, and a first end portion of the first connecting branch 110 is provided with a first sealing connector, and the first end portion of the first connecting branch 110 can be sealed and connected with the outlet pipe of the breathing circuit of the anesthesia respirator through the first sealing connector. The second end of the first connecting branch 110 is sealed and connected with the first passage 122 of the first end of the second connecting branch 120, and the second end of the second connecting branch 120 is provided with a second sealing connector, and the second end of the second connecting branch 120 can be sealed and connected with the carbon dioxide absorption tank through the second sealing connector, and the second passage 123 of the first end of the second connecting branch 120 is sealed and connected with the first end of the third connecting branch 130, and the second end of the third connecting branch 130 is provided with a third sealing connector, and the second end of the third connecting branch 130 can be sealed and connected with the air inlet pipe of the anesthesia ventilator through the third sealing connector.

[0036] When in use, the first end of the first connecting branch 110 of the three-way connector 100 provided in the embodiment of the utility model is sealed and connected to the outlet pipe of the breathing circuit of the anesthesia ventilator through the first sealing connector, the second end of the second connecting branch 120 of the three-way connector 100 provided in the embodiment of the utility model is sealed and connected to the carbon dioxide absorption tank through the second sealing connector, and the second end of the third connecting branch 130 of the three-way connector 100 provided in the embodiment of the utility model is sealed and connected to the air inlet pipe of the anesthesia ventilator through the third sealing connector.

[0037] The gas exhaled by the user of the anesthesia respirator enters the first connecting branch 110 along the outlet pipe of the breathing circuit of the anesthesia respirator, then enters the first passage 122 along the first connecting branch 110, then enters the carbon dioxide absorption tank along the first passage 122, the carbon dioxide in the gas is absorbed by the carbon dioxide absorption tank, and the remaining gas enters the second passage 123, then enters the third connecting branch 130 along the second passage 123, and finally enters the air inlet pipe of the anesthesia respirator along the third connecting branch 130. When the carbon dioxide absorption tank needs to be replaced, the carbon dioxide absorption tank can be removed from the second connecting branch 120 by unlocking the second sealing connector, and the replaced carbon dioxide absorption tank is sealed and installed on the second end of the second connecting branch 120 through the second sealing connector. The three-way connector 100 provided in the embodiment of the utility model can facilitate the removal and replacement of the carbon dioxide absorption tank from the breathing circuit of the anesthesia respirator.

[0038] The three-way connector 100 provided in the embodiment of the present utility model is specifically Figure 1 , Figure 2 as well as Figure 3 The first sealing connector is an annular groove 111 provided on the first connecting branch 110, and the outlet pipe of the breathing circuit of the anesthesia ventilator can be sleeved on the first connecting branch 110 and fixed in the annular groove 111. The radial dimension of the first end of the first connecting branch 110 is smaller than the radial dimension of the first connecting branch 110 at the position of the annular groove 111, so that the outlet pipe of the breathing circuit of the anesthesia ventilator can be sleeved on the first connecting branch 110. In this embodiment, a claw is provided at the end of the outlet pipe of the breathing circuit of the anesthesia ventilator, and the outlet pipe of the breathing circuit of the anesthesia ventilator is sleeved on the first connecting branch 110, and the claw can be clamped in the annular groove 111.

[0039] The three-way connector 100 provided in the embodiment of the present utility model is specifically Figure 1 , Figure 2 as well as Figure 3 The second sealing connection member is a first external thread 124 provided on the outer side wall of the second connecting branch pipe 120, and the carbon dioxide absorption tank can be thread-sealed and connected with the first external thread 124. A retaining ring 125 is provided on the outer side wall of the second connecting branch pipe 120, and the carbon dioxide absorption tank can be thread-sealed and connected with the first external thread 124 to abut against the retaining ring 125, and the retaining ring 125 can locate the relative position of the carbon dioxide absorption tank and the second connecting branch pipe 120.

[0040] The three-way connector 100 provided in the embodiment of the present utility model is specifically Figure 1 , Figure 2 as well as Figure 3 A second external thread 131 is provided on the outer wall of the third connecting branch pipe 130, and a plurality of arc-shaped clamping plates 132 are provided at intervals along the circumferential direction at the second end of the third connecting branch pipe 130. The third sealing connector includes a threaded ring 133, which is sleeved on the third connecting branch pipe 130 and threadably matched with the second external thread 131. The plurality of arc-shaped clamping plates 132 can be sleeved on the air inlet pipe of the anesthesia respirator. The axial movement of the threaded ring 133 along the third connecting branch pipe 130 can clamp the plurality of arc-shaped clamping plates 132 on the air inlet pipe of the anesthesia respirator.

[0041] In this embodiment, the outer wall of the arc clamping plate 132 is provided with an inclined abutting surface 134 extending along the axial direction of the third connecting branch pipe 130. The threaded collar 133 abuts against the inclined abutting surface 134 and moves along the axial direction of the third connecting branch pipe 130, so that the multiple arc clamping plates 132 can be gradually clamped on the air inlet pipe of the anesthesia breathing machine. When the threaded collar 133 rotates relative to the third connecting branch pipe 130, the arc clamping plate 132 will be squeezed by the threaded collar 133. As the threaded collar 133 continues to rotate and move along the axial direction of the third connecting branch pipe 130, the greater the squeezing force on the arc clamping plate 132, the more the arc clamping plate 132 will clamp the air inlet pipe of the anesthesia breathing machine, thereby preventing the three-way connector 100 provided by the embodiment of the utility model from being separated from the air inlet pipe of the anesthesia breathing machine.

[0042] The utility model also provides an anesthesia ventilator breathing circuit, which has a three-way connector 100 provided by any of the above embodiments. The specific structure of the three-way connector 100 refers to the above embodiments. Since the anesthesia ventilator breathing circuit adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Specifically, the anesthesia ventilator breathing circuit also includes an air outlet pipe, and the first end of the first connecting branch pipe 110 is sealed and connected to the air outlet pipe through a first sealing connector.

[0043] The utility model also provides an anesthesia ventilator, which has an anesthesia ventilator breathing circuit provided by any of the above embodiments. The specific structure of the anesthesia ventilator breathing circuit refers to the above embodiments. Since the anesthesia ventilator adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A three-way connector, characterized in that: The three-way connector includes a first connecting branch, a second connecting branch and a third connecting branch that are fixed to each other. A baffle is provided in the second connecting branch. The baffle is arranged along the axial direction of the second connecting branch to separate the second connecting branch into a first passage and a second passage. A first sealing connector is provided at the first end of the first connecting branch. The first end of the first connecting branch can be sealed and connected to the outlet pipe of the breathing circuit of the anesthesia respirator through the first sealing connector. The second end of the first connecting branch is sealed and connected to the first passage of the first end of the second connecting branch. A second sealing connector is provided at the second end of the second connecting branch. The second end of the second connecting branch can be sealed and connected to the carbon dioxide absorption tank through the second sealing connector. The second passage of the first end of the second connecting branch is sealed and connected to the first end of the third connecting branch. A third sealing connector is provided at the second end of the third connecting branch. The second end of the third connecting branch can be sealed and connected to the intake pipe of the anesthesia respirator through the third sealing connector.

2. The three-way connector according to claim 1, characterized in that: The first sealing connector is an annular groove provided on the first connecting branch pipe, and the air outlet pipe of the breathing circuit of the anesthesia ventilator can be sleeved on the first connecting branch pipe and fixed in the annular groove.

3. The three-way connector according to claim 2, characterized in that: The radial dimension of the first end of the first communicating branch pipe is smaller than the radial dimension of the first communicating branch pipe at the position of the annular groove.

4. The three-way connector according to claim 1, characterized in that: The second sealing connection piece is a first external thread provided on the outer side wall of the second connecting branch pipe, and the carbon dioxide absorption tank can be thread-sealed and connected with the first external thread.

5. The three-way connector according to claim 4, characterized in that: A retaining ring is provided on the outer side wall of the second connecting branch pipe, and the carbon dioxide absorption tank can be connected to the first external thread in a thread-sealed manner to abut against the retaining ring.

6. The three-way connector according to claim 1, characterized in that: A second external thread is provided on the outer side wall of the third connecting branch pipe, and a plurality of arc-shaped clamping plates are provided at intervals along the circumferential direction at the second end of the third connecting branch pipe. The third sealing connector includes a threaded ring, which is sleeved on the third connecting branch pipe and cooperates with the second external thread. The plurality of arc-shaped clamping plates can be sleeved on the air inlet pipe of the anesthesia respirator, and the axial movement of the threaded ring along the third connecting branch pipe can clamp the plurality of arc-shaped clamping plates on the air inlet pipe of the anesthesia respirator.

7. The three-way connector according to claim 6, characterized in that: The outer side wall of the arc-shaped clamping plate is provided with an inclined abutment surface extending along the axial direction of the third connecting branch pipe. The threaded ring abuts against the inclined abutment surface and moves along the axial direction of the third connecting branch pipe, so that multiple arc-shaped clamping plates can be gradually clamped on the air inlet pipe of the anesthesia ventilator.

8. A breathing circuit for an anesthesia ventilator, characterized in that: The anesthesia ventilator breathing circuit comprises a three-way connector as described in any one of claims 1 to 7.

9. The anesthesia breathing machine breathing circuit according to claim 8, characterized in that: The anesthesia ventilator breathing circuit also includes an air outlet pipeline, and the first end of the first connecting branch is sealed and connected to the air outlet pipeline through the first sealing connector.

10. An anesthesia breathing machine, characterized in that: The anesthesia ventilator comprises an anesthesia ventilator breathing circuit as claimed in claim 9.

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