CN115171501A - Simulated lung for detecting performance of breathing machine - Google Patents
Simulated lung for detecting performance of breathing machine Download PDFInfo
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- CN115171501A CN115171501A CN202210984586.4A CN202210984586A CN115171501A CN 115171501 A CN115171501 A CN 115171501A CN 202210984586 A CN202210984586 A CN 202210984586A CN 115171501 A CN115171501 A CN 115171501A
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- upper cover
- adapter
- simulated lung
- rotating shaft
- performance
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
Abstract
The invention discloses a simulated lung for detecting the performance of a breathing machine, which comprises a simulated lung main body of a box structure consisting of an upper cover and a lower cover, wherein one sides of the upper cover and the lower cover are hinged, and the opposite sides are detachably provided with springs; a rubber air bag is arranged in the simulated lung main body, the upper end of the rubber air bag is connected with the inner wall of the upper cover, and the lower end of the rubber air bag is connected with the inner wall of the lower cover; the upper surface of the upper cover is provided with a rotatable adapter, one end of the adapter is communicated with the rubber air bag, and the other end of the adapter is communicated with the tested respirator; the invention has compact structure and easy use, and various conditions are simulated by replacing different springs.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a simulated lung for detecting the performance of a breathing machine.
Background
The simulated lung refers to a simulation device designed according to the respiratory motion mode of the real human pulmonary system. The simulated lung is not an anatomical model of a real human body; the lung compliance and airway resistance when the simulated lung simulates normal physiology or pathological state are indispensable powerful tools for clinical medicine teaching, training and scientific research work, and are also necessary instruments for accurately detecting various ventilator performance indexes.
However, the existing simulated lung has the defects of complex structure, high operation difficulty and inconvenience for quick use of a breathing machine. And more precise compliance cannot be obtained.
Disclosure of Invention
The invention provides a simulated lung for detecting the performance of a breathing machine, which has a compact structure, is easy to use and can obtain accurate compliance aiming at the problems in the prior art.
The technical scheme adopted by the invention is as follows:
a simulated lung for performance detection of a breathing machine comprises a simulated lung main body of a box structure consisting of an upper cover and a lower cover, wherein one side of the upper cover is hinged with one side of the lower cover, and the opposite side of the upper cover is detachably provided with a spring; a rubber air bag is arranged in the simulated lung main body, the upper end of the rubber air bag is connected with the inner wall of the upper cover, and the lower end of the rubber air bag is connected with the inner wall of the lower cover; the upper surface of the upper cover is provided with a rotatable adapter, one end of the adapter is communicated with the rubber air bag, and the other end of the adapter is communicated with the measured respirator.
Furthermore, the upper surface of the upper cover is provided with a display screen, and the upper cover also comprises a flow sensor for testing the gas flow in the adapter and a pressure sensor for measuring the pressure in the rubber air bag; flow sensor and pressure sensor all are connected to processing apparatus, and processing apparatus connects the display screen.
Furthermore, a rotating shaft is arranged on one side of the upper cover, which is hinged with the lower cover, and a sleeve is sleeved on the rotating shaft; two ends of the rotating shaft are respectively provided with a rotating shaft connecting block; the sleeve between the pivot connecting blocks is provided with the pivot outward, and the cover is equipped with the torsional spring in the pivot, and both sides all are provided with limiting displacement's reinforcing plate about the torsional spring.
Furthermore, the joint of the adapter and the upper cover is provided with an air blocking piece, and a sealing ring is arranged between the air blocking piece and the adapter.
Further, the display screen is arranged in the transparent shell arranged on the upper cover.
Further, the adapter is of an L-shaped structure.
Furthermore, a first gasket is arranged between the rotating shaft connecting block and the sleeve.
Further, a second gasket is arranged between the air resistance piece and the upper cover.
Further, the adapter is communicated with the detected respirator through a threaded silicone tube.
The beneficial effects of the invention are:
(1) The invention has compact structure and easy use, and various conditions are simulated by replacing different springs;
(2) The invention can adjust the compliance and the acting resistance of the test lung to obtain more accurate compliance and airway resistance.
Drawings
FIG. 1 is a side view of the present invention.
FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1 according to the present invention.
FIG. 3 is a top view of the present invention.
In the figure: 1-a lower cover, 2-an upper cover, 3-a rotating shaft connecting block, 4-a first gasket, 5-a sleeve, 6-a rubber air bag, 7-a pressing plate, 8-a spring, 9-an air resistance piece, 10-a sealing ring, 11-a torsion spring, 12-a rotating shaft, 13-a reinforcing plate, 14-a second gasket, 15-a rotating shaft, 16-an adapter, 17-a pressure sensor, 18-a display screen, 19-a shell and 20-a flow sensor.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1 and 2, a simulated lung for performance detection of a breathing machine comprises a simulated lung main body of a box structure formed by an upper cover 2 and a lower cover 1, wherein one side of the upper cover 2 is hinged with one side of the lower cover 1, and the opposite side is detachably provided with a spring 8; a rubber air bag 6 is arranged in the simulated lung main body, the upper end of the rubber air bag 6 is connected with the inner wall of the upper cover 2, and the lower end is connected with the inner wall of the lower cover 1; the upper surface of the upper cover 2 is provided with a rotatable adapter 16, one end of the adapter 16 is communicated with the rubber air bag 6, and the other end is communicated with the tested respirator.
The upper surface of the upper cover 2 is provided with a display screen 18, and the upper cover further comprises a flow sensor 20 for testing the gas flow in the adapter 16 and a pressure sensor 17 for measuring the pressure in the rubber air bag 6; both the flow sensor 20 and the pressure sensor 17 are connected to processing means which are connected to a display screen 18.
A rotating shaft 15 is arranged on one hinged side of the upper cover 2 and the lower cover 1, and a sleeve 5 is sleeved on the rotating shaft 15; two ends of the rotating shaft 15 are respectively provided with a rotating shaft connecting block 3; the sleeve 5 between the pivot connecting block 3 is provided with the pivot 12 outward, and the cover is equipped with torsional spring 11 on the pivot 12, and both sides all are provided with limiting displacement's reinforcing plate 13 about torsional spring 11.
An air resistance piece 9 is arranged at the joint of the adapter 16 and the upper cover 2, and a sealing ring 10 is arranged between the air resistance piece 9 and the adapter 20. The display screen 18 is placed in a transparent housing 19 provided on the upper cover 2. Adapter 16 is an L-shaped structure. A first gasket 4 is arranged between the rotating shaft connecting block 3 and the sleeve 5. The adapter 20 is communicated with the breathing machine to be tested through a threaded silicone tube.
The device can be used for testing and training the breathing machine, when the breathing machine of a user is tested, the breathing machine is connected with the breathing machine detector, and the breathing machine detector is connected with the device to detect the breathing machine. When a respirator training is carried out, the respirator is connected with the device.
When the test device is used, a 30cm threaded pipe is connected with the L-shaped connector, the upper surface of the upper cover 2 can be marked with specific airway resistance to be tested, such as Rp5, rp20 and Rp50, a pointer is marked on the L-shaped connector, and the pointer points to the airway resistance to be tested. When the L-shaped connecting head is not used, the L-shaped connecting head is rotated to the OFF position, and the measuring instrument is prevented from being damaged. The airway resistance calculation method is as follows: the peak pressure measured by the pressure transducer 17 minus the plateau pressure is then divided by the gas flow rate. Wherein the gas flow rate is measured by the flow sensor 20 and the platform pressure is a real-time measured pressure value.
When the compliance test is carried out, different springs are selected according to actual conditions, and C50 does not need to be added with any spring. C20 needs to be added with a natural color spring, C10 needs to be added with a yellow spring, and C5 needs to be added with a red spring. The springs with different colors are used for marking, so that the replacement is convenient. The compliance measurement method is as follows: the compliance is equal to the enhanced volume of the bellows divided by the pre-and post-measurement pressure increase value obtained by the pressure sensor 17. The bellows bladder is referred to herein as the rubber bladder 6.
The main technical parameters of the device are as follows:
the device adopts different springs to adapt to tests of different compliance, and more accurate compliance is obtained; more accurate airway resistance can be obtained; and the structure is compact, the operation is simple, and the carrying is convenient.
Claims (9)
1. A simulated lung for performance detection of a breathing machine is characterized by comprising a simulated lung main body of a box structure consisting of an upper cover (2) and a lower cover (1), wherein one side of the upper cover (2) is hinged with one side of the lower cover (1), and the opposite side is detachably provided with a spring (8); a rubber air bag (6) is arranged in the simulated lung main body, the upper end of the rubber air bag (6) is connected with the inner wall of the upper cover (2), and the lower end is connected with the inner wall of the lower cover (1); the upper surface of the upper cover (2) is provided with a rotatable adapter (16), one end of the adapter (16) is communicated with the rubber air bag (6), and the other end of the adapter is communicated with the measured respirator.
2. The simulated lung for detecting the performance of the breathing machine according to claim 1, wherein a display screen (18) is arranged on the upper surface of the upper cover (2), and the simulated lung further comprises a flow sensor (20) for testing the gas flow in the adapter (16) and a pressure sensor (17) for measuring the pressure in the rubber air bag (6); the flow sensor (20) and the pressure sensor (17) are both connected to a processing device, and the processing device is connected with a display screen (18).
3. The simulated lung for detecting the performance of the breathing machine according to claim 1, wherein a rotating shaft (15) is arranged on one hinged side of the upper cover (2) and the lower cover (1), and a sleeve (5) is sleeved on the rotating shaft (15); two ends of the rotating shaft (15) are respectively provided with a rotating shaft connecting block (3); a rotating shaft (12) is arranged outside the sleeve (5) between the rotating shaft connecting blocks (3), a torsion spring (11) is sleeved on the rotating shaft (12), and reinforcing plates (13) with limiting effects are arranged on the upper side and the lower side of the torsion spring (11).
4. The simulated lung for detecting the performance of the breathing machine according to claim 1, wherein an air blocking piece (9) is arranged at the joint of the adapter (16) and the upper cover (2), and a sealing ring (10) is arranged between the air blocking piece (9) and the adapter (20).
5. A simulated lung for performance testing of a ventilator according to claim 2, wherein the display screen (18) is placed in a transparent housing (19) provided on the upper cover (2).
6. The simulated lung for ventilator performance testing of claim 1 wherein said adapter (16) is an L-shaped structure.
7. A lung simulator for performance testing of a ventilator according to claim 3, wherein a first spacer (4) is provided between the shaft connection block (3) and the sleeve (5).
8. A lung simulator for performance testing of a ventilator according to claim 4, in which a second gasket (14) is provided between the air resistor (9) and the upper cover (2).
9. The simulated lung for detecting performance of a respirator as claimed in claim 1, wherein the adapter (16) is in communication with the respirator to be detected through a threaded silicone tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210984586.4A CN115171501A (en) | 2022-08-17 | 2022-08-17 | Simulated lung for detecting performance of breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210984586.4A CN115171501A (en) | 2022-08-17 | 2022-08-17 | Simulated lung for detecting performance of breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115171501A true CN115171501A (en) | 2022-10-11 |
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ID=83479626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210984586.4A Pending CN115171501A (en) | 2022-08-17 | 2022-08-17 | Simulated lung for detecting performance of breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115171501A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007008781A1 (en) * | 2007-02-22 | 2008-08-28 | G. Lohmeier Gmbh | Device for lung simulation, has two plates, which are measured by angle sensor, and sensor measures pressure inside and outside of folding bellows |
| CN101911151A (en) * | 2008-01-11 | 2010-12-08 | 挪度医疗器械有限公司 | A device for simulating variable lung compliance |
| CN205264213U (en) * | 2016-01-26 | 2016-05-25 | 北京大学人民医院 | A lung is planned to convenient section mould for medical science teaching |
| CN215895790U (en) * | 2021-09-18 | 2022-02-22 | 灵智创新(北京)医疗科技有限公司 | Device for simulating lung compliance |
-
2022
- 2022-08-17 CN CN202210984586.4A patent/CN115171501A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007008781A1 (en) * | 2007-02-22 | 2008-08-28 | G. Lohmeier Gmbh | Device for lung simulation, has two plates, which are measured by angle sensor, and sensor measures pressure inside and outside of folding bellows |
| CN101911151A (en) * | 2008-01-11 | 2010-12-08 | 挪度医疗器械有限公司 | A device for simulating variable lung compliance |
| CN205264213U (en) * | 2016-01-26 | 2016-05-25 | 北京大学人民医院 | A lung is planned to convenient section mould for medical science teaching |
| CN215895790U (en) * | 2021-09-18 | 2022-02-22 | 灵智创新(北京)医疗科技有限公司 | Device for simulating lung compliance |
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