CN219575007U

CN219575007U - Simulated lung

Info

Publication number: CN219575007U
Application number: CN202320462584.9U
Authority: CN
Inventors: 王昭丽; 何淑儿; 林露仙
Original assignee: Guangzhou Panyu Central Hospital
Current assignee: Guangzhou Panyu Central Hospital
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-08-22
Anticipated expiration: 2033-03-10

Abstract

The present utility model relates to a simulated lung. The simulated lung of the utility model comprises: the tank body is provided with an air receiving port, a pressure measuring port and an air outlet; the gas ring is arranged in the tank body in a sliding manner, the gas ring divides the inner cavity of the tank body into a first cavity and a second cavity, the first cavity is communicated with the gas receiving port and the pressure measuring port, and the second cavity is communicated with the gas outlet; the spring is arranged between the tank body and the gas ring and is used for driving the gas ring to reset; the pressure gauge is connected with the pressure measuring port and collects gas pressure.

Description

Simulated lung

Technical Field

The utility model relates to the field of medical instruments, in particular to a simulated lung.

Background

The simulation lung is a simulation device designed according to the respiratory motion mode of the real human lung system, is an indispensable powerful tool in clinical medicine teaching, training and scientific research work, and is also a necessary instrument for accurately detecting various respirator performance indexes. The simulated lung is a mechanical ventilation load that simulates the chest and lung characteristics of a patient (the lung compliance and airway resistance parameters are fixed, stepped or adjustable), and can be classified into adult simulated lung, infant simulated lung and mixed simulated lung according to volume.

The existing lung simulation technology is that an airbag is clamped by 2 splints, the air bag is inflated by positive pressure gas of a breathing machine, and the airbag is extruded and contracted by the splints after the breathing machine stops blowing, so that a lung expansion and contraction simulation effect is formed.

The existing simulated lung is obviously affected by the outside, and if the simulated lung is extruded by external force, the work of the simulated lung is obviously affected, so that the breathing machine alarms. Meanwhile, the existing simulated lung cannot observe the simulated lung pressure. If pediatric simulated lung is used, the existing simulated lung is sensitive and frequently gives an alarm, because the children have smaller lung capacity, the existing simulated lung is difficult to adapt to the work of the small-displacement simulated lung, and the pressure of the simulated lung cannot be detected.

Disclosure of Invention

Based on this, it is an object of the present utility model to provide a simulated lung.

A simulated lung, the simulated lung comprising: the tank body is provided with an air receiving port, a pressure measuring port and an air outlet; the gas ring is arranged in the tank body in a sliding manner, the gas ring divides the inner cavity of the tank body into a first cavity and a second cavity, the first cavity is communicated with the gas receiving port and the pressure measuring port, and the second cavity is communicated with the gas outlet; the spring is arranged between the tank body and the gas ring and is used for driving the gas ring to reset; the pressure gauge is connected with the pressure measuring port and collects gas pressure.

Further, a sealing ring is arranged on the periphery of the gas ring, and the sealing ring is attached to the inner wall of the tank body.

Further, the seal ring is made of silica gel.

Further, an upper fixing buckle and a lower fixing buckle are arranged on the end face of the gas ring, and one end of the spring is connected to the upper fixing buckle and the lower fixing buckle in a buckling mode.

Further, the end face of the gas ring protrudes out of a first positioning seat, the upper fixing buckle and the lower fixing buckle are arranged on the periphery of the first positioning seat, and the spring is sleeved on the first positioning seat.

Further, the air receiving port is arranged on one end face of the tank body, the base is arranged on the other end face of the tank body, and the air outlet is arranged on the base.

Further, the spring is arranged in the second cavity, one end of the spring is connected to the gas ring, and the other end of the spring is connected to the base.

Further, the end face of the base is protruded with a second positioning seat, and the spring is sleeved on the second positioning seat.

Further, the simulated lung comprises a three-way connecting pipe, an oxygen sensor, a display device and a controller, wherein a first end of the three-way connecting pipe is used for being communicated with the air receiving port, a second end of the three-way connecting pipe is used for being communicated with the breathing machine, a third end of the three-way connecting pipe is connected with the oxygen sensor, the oxygen sensor is used for collecting gas oxygen concentration, and the controller is respectively and electrically connected with the pressure gauge, the oxygen sensor and the display device.

Further, the simulated lung comprises a flow tube and a flow sensor, one end of the flow tube is connected with the air receiving port, the other end of the flow tube is connected with the first end of the three-way connecting tube, and the flow sensor is connected with the flow tube to collect gas flow.

For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.

Drawings

FIG. 1 is a schematic diagram of a simulated lung according to an embodiment;

FIG. 2 is an internal schematic view of a simulated lung according to an embodiment I;

FIG. 3 is a schematic view of a base according to a first embodiment;

FIG. 4 is a schematic view of a gas ring according to one embodiment;

FIG. 5 is a schematic diagram of a simulated lung according to the second embodiment;

reference numerals:

1. a tank body; 11. an air receiving port; 12. an air outlet; 13. a pressure measuring port; 14. a first chamber; 15. a second chamber; 16. a base; 17. a second positioning seat; 2. a gas ring; 21. a seal ring; 22. a first positioning seat; 23. a fixing buckle is arranged on the upper part; 24. a lower fixing buckle; 3. a spring; 4. a pressure gauge; 5. a flow tube; 6. a three-way connecting pipe; 7. a flow sensor; 8. an oxygen sensor; 9. a display device; 10. and a controller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

It is to be understood that in the description of the present utility model, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and simplify 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. 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, i.e., features defining "first," "second," may explicitly or implicitly include one or more such features. Furthermore, unless otherwise indicated, the meaning of "a plurality" is two or more.

It should be noted that, in the description of the present utility model, unless explicitly specified and defined otherwise, the terms "disposed," "connected," and "hollow" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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.

Example 1

Referring to fig. 1 to 4, a simulated lung of the present embodiment includes a canister 1, a gas ring 2, a spring 3, and a pressure gauge 4. An air receiving port 11 is arranged on one end face of the tank body 1, a base 16 is arranged on the other end face of the tank body 1, an air outlet 12 is arranged on the base 16, and a pressure measuring port 13 is arranged on the peripheral side face of the tank body 1. The gas ring 2 is slidably arranged in the tank body 1, the gas ring 2 divides the inner cavity of the tank body 1 into a first cavity 14 and a second cavity 15, the first cavity 14 is communicated with the gas receiving port 11 and the pressure measuring port 13, and the second cavity 15 is communicated with the gas outlet 12. The spring 3 is arranged between the tank 1 and the gas ring 2, the spring 3 is used for driving the gas ring 2 to reset, in the embodiment, the spring 3 is positioned in the second chamber 15, one end of the spring 3 is connected to the gas ring 2, and the other end of the spring 3 is connected to the base 16. The pressure gauge 4 is connected with the pressure measuring port 13, and the pressure gauge 4 collects gas pressure.

In order to improve the tightness between the gas ring 2 and the tank body 1, a sealing ring 21 is arranged on the periphery of the gas ring 2, the sealing ring 21 is made of silica gel, and the sealing ring 21 is completely attached to the inner wall of the tank body 1. The sealing ring 21 can function as a sealing gas and a sliding action.

In order to define the position of the spring 3 in the can 1, a first positioning seat 22 is provided on the face of the gas ring 2 opposite the seat 16, and a second positioning seat 17 is provided on the face of the seat 16 opposite the gas ring 2. One end of the spring 3 is sleeved on the first positioning seat 22, the other end of the spring 3 is sleeved on the second positioning seat 17, and two ends of the spring 3 are respectively propped against the gas ring 2 and the base 16.

In order to fixedly connect the spring 3 with the air ring 2, an upper fixing buckle 23 and a lower fixing buckle 24 are arranged on the end face of the air ring 2, the upper fixing buckle 23 and the lower fixing buckle 24 are arranged on the periphery of the first positioning seat 22, and the upper fixing buckle 23 and the lower fixing buckle 24 are symmetrically arranged relative to the axis of the first positioning seat 22. One end of the spring 3 is connected with the upper fixing buckle 23 and the lower fixing buckle 24 in a buckling way.

The working process comprises the following steps: the user connects the air port 11 of the simulated lung with the air port of the breathing machine, and starts the breathing machine, and the breathing machine supplies positive pressure air needed by the human body to the simulated lung; then, positive pressure gas is supplied to the first chamber 14 of the canister 1 simulating the lung; after the first chamber 14 of the tank body 1 receives positive pressure gas, the gas in the first chamber 14 can squeeze the gas ring 2 to drive the gas ring 2 to move leftwards; in the process that the gas ring 2 moves leftwards, the gas ring 2 presses the spring 3, gas in the second chamber 15 of the tank body 1 is pressed by the gas ring 2, and the gas in the second chamber 15 is discharged from the gas outlet 12 of the tank body 1; when the frequency gas is supplied, the gas ring 2 is rebounded to the original position by the spring 3, and the next time the frequency gas starts again, so that a simulated lung 'expanding' and 'closing' state is formed.

Compared with the prior art, the children simulation lung solves the problem that the work of the simulation lung is obviously influenced by external force extrusion, so that the breathing machine can be tested in various environments by using the simulation lung test machine, and the failure phenomenon of the breathing machine caused by the influence of the environment is reduced. Meanwhile, the problem that the simulated lung pressure cannot be observed is solved, so that the simulated lung pressure can be observed intuitively under certain parameters of the breathing machine, the simulated lung pressure can be observed intuitively even if the air displacement is small, the breathing machine air supply pressure is provided for clinical medical staff to observe, and the treatment safety is guaranteed.

Example two

Referring to fig. 5, the difference between the simulated lung according to the present embodiment and the simulated lung according to the first embodiment is that: also comprises a flow tube 5, a three-way connecting tube 6, a flow sensor 7, an oxygen sensor 8, a display device 9 and a controller 10. One end of the flow tube 5 is connected with the air receiving port 11 of the tank body 1, and the other end of the flow tube 5 is connected with the first end of the three-way connecting tube 6. The second end of the three-way connection tube 6 is adapted to be connected to a ventilator. A flow sensor 7 is connected to the flow tube 5 to collect the gas flow. The oxygen sensor 8 is connected with the third end of the three-way connecting pipe 6, and the oxygen sensor 8 is used for collecting the oxygen concentration of the gas. The controller 10 is respectively and electrically connected with the pressure gauge 4, the flow sensor 7, the oxygen sensor 8 and the display device 9, the controller 10 receives the pressure value collected by the pressure gauge 4, the flow value collected by the flow sensor 7 and the oxygen concentration collected by the oxygen sensor 8, and sends the collected data to the display, and the display device 9 displays the pressure value collected by the pressure gauge 4, the flow value collected by the flow sensor 7 and the oxygen concentration collected by the oxygen sensor 8.

In particular, the flow sensor 7 may be a differential pressure type flow sensor, a turbine type flow sensor or a flow sampling probe. The display device 9 may be an LCD, LED or printer.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. A simulated lung, the simulated lung comprising:

the tank body (1), the tank body (1) is provided with an air receiving port (11), a pressure measuring port (13) and an air outlet (12);

the gas ring (2) is slidably arranged in the tank body (1), the gas ring (2) divides the inner cavity of the tank body (1) into a first cavity (14) and a second cavity (15), the first cavity (14) is communicated with the gas receiving port (11) and the pressure measuring port (13), and the second cavity (15) is communicated with the gas outlet (12);

the spring (3) is arranged between the tank body (1) and the gas ring (2), and the spring (3) is used for driving the gas ring (2) to return;

the pressure gauge (4), the pressure gauge (4) with pressure measurement mouth (13) are connected, gas pressure is gathered to pressure gauge (4).

2. The simulated lung of claim 1, wherein: the periphery of the gas ring (2) is provided with a sealing ring (21), and the sealing ring (21) is attached to the inner wall of the tank body (1).

3. The simulated lung of claim 2, wherein: the sealing ring (21) is made of silica gel.

4. The simulated lung of claim 1, wherein: the end face of the gas ring (2) is provided with an upper fixing buckle (23) and a lower fixing buckle (24), and one end of the spring (3) is connected to the upper fixing buckle (23) and the lower fixing buckle (24) in a buckling mode.

5. The simulated lung of claim 4, wherein: the end face of the gas ring (2) protrudes out of a first positioning seat (22), the upper fixing buckle (23) and the lower fixing buckle (24) are arranged on the periphery of the first positioning seat (22), and the spring (3) is sleeved on the first positioning seat (22).

6. The simulated lung of claim 1, wherein: one end face of the tank body (1) is provided with the air receiving port (11), the other end face of the tank body (1) is provided with the base (16), and the air outlet (12) is arranged on the base (16).

7. The simulated lung of claim 6, wherein: the spring (3) is arranged in the second chamber (15), one end of the spring (3) is connected to the gas ring (2), and the other end of the spring (3) is connected to the base (16).

8. The simulated lung of claim 7, wherein: the end face of the base (16) is provided with a second positioning seat (17) in a protruding mode, and the spring (3) is sleeved on the second positioning seat (17).

9. The simulated lung of claim 1, wherein: the simulated lung comprises a three-way connecting pipe (6), an oxygen sensor (8), a display device (9) and a controller (10), wherein a first end of the three-way connecting pipe (6) is used for being communicated with an air receiving port (11), a second end of the three-way connecting pipe (6) is used for being communicated with a breathing machine, a third end of the three-way connecting pipe (6) is connected with the oxygen sensor (8), the oxygen sensor (8) is used for collecting gas oxygen concentration, and the controller (10) is respectively electrically connected with the pressure gauge (4), the oxygen sensor (8) and the display device (9).

10. The simulated lung of claim 9, wherein: the simulated lung comprises a flow tube (5) and a flow sensor (7), one end of the flow tube (5) is connected with the air receiving port (11), the other end of the flow tube (5) is connected with the first end of the three-way connecting tube (6), and the flow sensor (7) is connected with the flow tube (5) to collect gas flow.