CN203458657U - Air passage exhaust device and breathing machine provided with same - Google Patents
Air passage exhaust device and breathing machine provided with same Download PDFInfo
- Publication number
- CN203458657U CN203458657U CN201320532542.4U CN201320532542U CN203458657U CN 203458657 U CN203458657 U CN 203458657U CN 201320532542 U CN201320532542 U CN 201320532542U CN 203458657 U CN203458657 U CN 203458657U
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- CN
- China
- Prior art keywords
- electromagnetic valve
- valve
- air flue
- venturi nozzle
- pressure
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Abstract
The utility model relates to an air passage exhaust device which comprises a control unit, a high-pressure air source, a first electromagnetic valve, a second electromagnetic valve, a first one-way valve and a venturi nozzle, wherein the high-pressure air source is connected to an inlet of the venturi nozzle through a first air passage, the first electromagnetic valve is arranged on the first air passage, a patient breath pipeline is connected to an adsorption port of the venturi nozzle through a second air passage, the second electromagnetic valve and the first one-way valve are arranged on the second air passage, air exhaled by a patient is exhausted outwards through an outlet of the venturi nozzle, and the control unit is used for controlling the on-off of the first electromagnetic valve and the second electromagnetic valve. A breathing machine is provided with the air passage exhaust device. According to the air passage exhaust device and the breathing machine, the working sensitivity and the air tightness of a breathing valve used by the patient can be improved, the man-machine counteraction can be reduced, the respiratory resistance of the air passages is reduced and the inhaling comfort of the patient is improved.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of air flue exhaust apparatus and the respirator with this exhaust apparatus.
Background technology
Respirator has adopted breather valve while connecting patient, ventilating return in breather valve and patient are connected with an one-way sucting valve (as shown in 201 in Fig. 1), while making breathing machine ventilation, gas is sent into patient pulmonary through check valve, and during patient exhales, gas cannot be back to respirator by check valve.The sensitivity of this check valve work is higher, and the better patient's of air-tightness expiration will be happier.And the factor of working sensitivity that determines check valve is except the material and self design of check valve, the factor of another one maximum is the pressure differential at check valve two ends, and when this pressure differential is larger, its air-tightness is better.The variation of pressure differential has determined sensitivity.
For existing respirator, the air flue gas exhaust piping exhaust velocity that connects patient respiration pipeline is slow, make the pressure decrease slow in air flue, the pressure differential at one-way sucting valve two ends forms slowly, and minimum pressure cannot be lower than ambient pressure, patient causes breathing and has some setbacks or even dyspnea because the one-way cock of breather valve cannot form stable pressure differential when exhaling.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of air flue exhaust apparatus and the respirator with this exhaust apparatus are provided, improve working sensitivity and the air-tightness of patient respiration valve, reduce man-machine confrontation, reduce air flue respiratory resistance, greatly improve the comfortableness of patient exhales.
For achieving the above object, this utility model is by the following technical solutions:
A kind of air flue exhaust apparatus, comprise control unit, high-pressure air source, the first electromagnetic valve, the second electromagnetic valve, the first check valve and Venturi nozzle, described high-pressure air source is connected to the entrance of described Venturi nozzle by the first air flue, described the first electromagnetic valve is arranged on described the first air flue, patient respiration pipeline is connected to the absorption port of described Venturi nozzle by the second air flue, described the second electromagnetic valve and described the first check valve are arranged on described the second air flue, the gas that patient breathes out is discharged to outside by the outlet of described Venturi nozzle, described control unit is for controlling the break-make of described the first electromagnetic valve and described the second electromagnetic valve.
Described the first check valve is arranged between described the second electromagnetic valve and described Venturi nozzle.
Between described high-pressure air source and described the first electromagnetic valve, be provided with pressure-regulating valve.
Between described high-pressure air source and described the first electromagnetic valve, be provided with vapour lock.
The pressure of described high-pressure air source is at 2.7bar-6bar.
A kind of respirator, comprise patient respiration valve, patient respiration pipeline and air flue exhaust apparatus, one-way sucting valve described in one termination of described patient respiration pipeline in patient respiration valve, air flue exhaust apparatus described in another termination, described air flue exhaust apparatus comprises control unit, high-pressure air source, the first electromagnetic valve, the second electromagnetic valve, the first check valve and Venturi nozzle, described high-pressure air source is connected to the entrance of described Venturi nozzle by the first air flue, described the first electromagnetic valve is arranged on described the first air flue, described patient respiration pipeline is connected to the absorption port of described Venturi nozzle by the second air flue, described the second electromagnetic valve and described the first check valve are arranged on described the second air flue, the gas that patient breathes out is discharged to outside by the outlet of described Venturi nozzle, described control unit is for controlling the break-make of described the first electromagnetic valve and described the second electromagnetic valve.
Described the first check valve is arranged between described the second electromagnetic valve and described Venturi nozzle.
Between described high-pressure air source and described the first electromagnetic valve, be provided with pressure-regulating valve.
Between described high-pressure air source and described the first electromagnetic valve, be provided with vapour lock.
The pressure of described high-pressure air source is at 2.7bar-6bar.
Useful technique effect of the present utility model:
Air flue exhaust apparatus of the present utility model can effectively improve working sensitivity and the air-tightness of patient respiration valve, reduces man-machine confrontation, reduces air flue respiratory resistance, significantly improves the comfortableness of patient exhales.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of this utility model air flue exhaust apparatus;
Fig. 2 is the part-structure schematic diagram of a kind of embodiment of this utility model respirator.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be emphasized that, following explanation is only exemplary, rather than in order to limit scope of the present utility model and application thereof.
Consult Fig. 1 and Fig. 2, in some embodiments, a kind of air flue exhaust apparatus comprises control unit, high-pressure air source, the first electromagnetic valve V1, the second electromagnetic valve V2, the first check valve V4 and Venturi nozzle, described high-pressure air source is connected to the entrance of described Venturi nozzle by the first air flue A, described the first electromagnetic valve V1 is arranged on described the first air flue A, patient respiration pipeline 202 is connected to the absorption port of described Venturi nozzle by the second air flue B, described the second electromagnetic valve V2 and described the first check valve V4 are arranged on described the second air flue B, the gas that patient breathes out is discharged to outside by the outlet of described Venturi nozzle, described control unit is for controlling the break-make of described the first electromagnetic valve V1 and described the second electromagnetic valve V2.
Preferably, described the first check valve is arranged between described the second electromagnetic valve V2 and described Venturi nozzle.
Preferably, between described high-pressure air source and described the first electromagnetic valve V1, be provided with pressure-regulating valve.
Preferably, between described high-pressure air source and described the first electromagnetic valve V1, be provided with vapour lock.
Preferably, the pressure of described high-pressure air source is at 2.7bar-6bar.
Figure 2 shows that a kind of respirator with this exhaust apparatus, it comprises patient respiration valve 200, patient respiration pipeline 202 and air flue exhaust apparatus as shown in Figure 1, patient respiration valve 200 comprises for the one-way sucting valve 201 of patient's one-way intake and supplies the one-way breather valve 203 of the unidirectional expiration of patient, one-way sucting valve 201 described in one termination of described patient respiration pipeline 202 in patient respiration valve 200, air flue exhaust apparatus described in another termination.
Working method is as follows:
While starting aerofluxus, it is open-minded that control unit is controlled the second electromagnetic valve V2, makes patient respiration pipeline 202 and the second air flue B UNICOM, and it is open-minded that while control unit is controlled the first electromagnetic valve V1, makes high-pressure air source and the first air flue A UNICOM; The high velocity air of the first air flue A is through Venturi nozzle, utilize Venturi effect to produce low pressure at the absorption port of Venturi nozzle, make the first check valve V4 two ends mineralization pressure poor, thereby improved the flow velocity of the second air flue B, the gas discharge rate of patient respiration pipeline 202 is strengthened.
While finishing aerofluxus, control unit is controlled the first electromagnetic valve V1 and is closed, and disconnects high-pressure air source, and can select to close the second electromagnetic valve V2 at once or be maintained to exhale while finishing, just to close the second electromagnetic valve V2.If close the second electromagnetic valve V2 while selecting to close the first electromagnetic valve V1 at once, the pressure stability of patient respiration pipeline 202 constant (may lower than atmospheric pressure).If select to be maintained to exhale, while finishing, just close the second electromagnetic valve V2, the pressure of patient respiration pipeline 202 will rise to atmospheric pressure.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. an air flue exhaust apparatus, it is characterized in that, comprise control unit, high-pressure air source, the first electromagnetic valve, the second electromagnetic valve, the first check valve and Venturi nozzle, described high-pressure air source is connected to the entrance of described Venturi nozzle by the first air flue, described the first electromagnetic valve is arranged on described the first air flue, patient respiration pipeline is connected to the absorption port of described Venturi nozzle by the second air flue, described the second electromagnetic valve and described the first check valve are arranged on described the second air flue, the gas that patient breathes out is discharged to outside by the outlet of described Venturi nozzle, described control unit is for controlling the break-make of described the first electromagnetic valve and described the second electromagnetic valve.
2. air flue exhaust apparatus as claimed in claim 1, is characterized in that, described the first check valve is arranged between described the second electromagnetic valve and described Venturi nozzle.
3. air flue exhaust apparatus as claimed in claim 1 or 2, is characterized in that, between described high-pressure air source and described the first electromagnetic valve, is provided with pressure-regulating valve.
4. air flue exhaust apparatus as claimed in claim 1 or 2, is characterized in that, between described high-pressure air source and described the first electromagnetic valve, is provided with vapour lock.
5. air flue exhaust apparatus as claimed in claim 1 or 2, is characterized in that, the pressure of described high-pressure air source is at 2.7bar-6bar.
6. a respirator, comprise patient respiration valve, patient respiration pipeline and air flue exhaust apparatus, one-way sucting valve described in one termination of described patient respiration pipeline in patient respiration valve, air flue exhaust apparatus described in another termination, it is characterized in that, described air flue exhaust apparatus comprises control unit, high-pressure air source, the first electromagnetic valve, the second electromagnetic valve, the first check valve and Venturi nozzle, described high-pressure air source is connected to the entrance of described Venturi nozzle by the first air flue, described the first electromagnetic valve is arranged on described the first air flue, described patient respiration pipeline is connected to the absorption port of described Venturi nozzle by the second air flue, described the second electromagnetic valve and described the first check valve are arranged on described the second air flue, the gas that patient breathes out is discharged to outside by the outlet of described Venturi nozzle, described control unit is for controlling the break-make of described the first electromagnetic valve and described the second electromagnetic valve.
7. respirator as claimed in claim 6, is characterized in that, described the first check valve is arranged between described the second electromagnetic valve and described Venturi nozzle.
8. the respirator as described in claim 6 or 7, is characterized in that, between described high-pressure air source and described the first electromagnetic valve, is provided with pressure-regulating valve.
9. the respirator as described in claim 6 or 7, is characterized in that, between described high-pressure air source and described the first electromagnetic valve, is provided with vapour lock.
10. the respirator as described in claim 6 or 7, is characterized in that, the pressure of described high-pressure air source is at 2.7bar-6bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532542.4U CN203458657U (en) | 2013-08-29 | 2013-08-29 | Air passage exhaust device and breathing machine provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532542.4U CN203458657U (en) | 2013-08-29 | 2013-08-29 | Air passage exhaust device and breathing machine provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203458657U true CN203458657U (en) | 2014-03-05 |
Family
ID=50171038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320532542.4U Withdrawn - After Issue CN203458657U (en) | 2013-08-29 | 2013-08-29 | Air passage exhaust device and breathing machine provided with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203458657U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405837A (en) * | 2013-08-29 | 2013-11-27 | 深圳市安保科技有限公司 | Airway exhaust device and respirator with same |
| CN104399165A (en) * | 2014-11-28 | 2015-03-11 | 山东大学齐鲁医院 | Non-invasive ventilator capable of reversely adjusting inhaling/ exhaling pressure ratio |
| CN117018373A (en) * | 2023-10-08 | 2023-11-10 | 德州氧康健康科技有限公司 | Oxygen exhausting device of medical oxygen cabin |
-
2013
- 2013-08-29 CN CN201320532542.4U patent/CN203458657U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103405837A (en) * | 2013-08-29 | 2013-11-27 | 深圳市安保科技有限公司 | Airway exhaust device and respirator with same |
| CN104399165A (en) * | 2014-11-28 | 2015-03-11 | 山东大学齐鲁医院 | Non-invasive ventilator capable of reversely adjusting inhaling/ exhaling pressure ratio |
| CN117018373A (en) * | 2023-10-08 | 2023-11-10 | 德州氧康健康科技有限公司 | Oxygen exhausting device of medical oxygen cabin |
| CN117018373B (en) * | 2023-10-08 | 2024-01-12 | 潍坊华信氧业有限公司 | Oxygen exhausting device of medical oxygen cabin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20150826 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20150826 |
|
| RGAV | Abandon patent right to avoid regrant |