CN113975581A - Expiratory valve of anesthesia respirator - Google Patents
Expiratory valve of anesthesia respirator Download PDFInfo
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- CN113975581A CN113975581A CN202111282912.9A CN202111282912A CN113975581A CN 113975581 A CN113975581 A CN 113975581A CN 202111282912 A CN202111282912 A CN 202111282912A CN 113975581 A CN113975581 A CN 113975581A
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- valve
- diaphragm
- exhalation
- cover plate
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- 206010002091 Anaesthesia Diseases 0.000 title claims abstract description 12
- 230000037005 anaesthesia Effects 0.000 title claims abstract description 12
- 230000001965 increasing effect Effects 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 16
- 230000003444 anaesthetic effect Effects 0.000 claims description 8
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 5
- 230000004044 response Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0087—Environmental safety or protection means, e.g. preventing explosion
- A61M16/009—Removing used or expired gases or anaesthetic vapours
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/202—Controlled valves electrically actuated
- A61M16/203—Proportional
- A61M16/205—Proportional used for exhalation control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/206—Capsule valves, e.g. mushroom, membrane valves
Landscapes
- Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to the technical field of medical detection, in particular to an exhalation valve of an anesthesia respirator, which comprises: the valve comprises a valve body, a diaphragm, an end cover, a cover plate and an end cover arranged above the diaphragm, wherein the end cover is arranged above the cover plate, a driving gas inlet and an expiration outlet are arranged at the lower end of the valve body in parallel, the driving gas inlet is vertically arranged at one end of the valve body, and the expiration outlet corresponds to a valve port; the loop air port is positioned at the other end of the valve body; wherein the diaphragm comprises: the invention not only reduces local resistance, but also solves the problems of long response time, poor control precision, more accessory parts, air leakage points and action fault points and the problem of difficult maintenance and repair.
Description
Technical Field
The invention relates to the technical field of medical detection, in particular to an exhalation valve of an anesthesia respirator.
Background
In the technical performance indexes of the medical anesthesia machine, a Positive End Expiratory Pressure (PEEP) value and expiratory resistance are two crucial performance standards. It is directly related to the user experience of the product and the life safety of the patient. The traditional expiratory valve is only a pneumatic control one-way valve or is singly connected in series or integrated in a pipeline integration block, and during the operation process of the respirator of the anesthesia machine, the traditional expiratory valve has many leakage points, large local resistance, high maintenance technical requirement, needs professional tools and other adverse factors. In the actual process of adjusting the PEEP value, the adverse factors such as long response time, poor control precision and the like exist. Therefore, how to reduce the exhalation resistance and accurately and sensitively control the positive end expiratory pressure (PEEP value) becomes a key part of the device manufacturing. Related products in the market at present mainly adopt simple pneumatic control one-way valve type expiratory valves which are singly connected in series or integrated in a pipeline manifold block.
The existing conventional expiratory valve ventilation scheme has the following defects: 1) the exhalation resistance is large, and the opening and closing sensitivity is poor; 2) the PEEP value has poor precision; 3) the processing difficulty is high, and the processing cost is high; 4) the maintenance is difficult, and special tools are needed; 5) the volume is larger, the number of accessory parts is more, and the number of air leakage points and action failure points is more. Therefore, a new exhalation valve for an anesthetic breathing apparatus is needed.
Disclosure of Invention
The invention aims to overcome the problems and provides an exhalation valve of an anesthesia respirator. The valve body integrates interfaces such as a driving air inlet, a loop air port, an exhalation outlet and the like, and the exhalation resistance is reduced. Adopt injection moulding, integrated into one piece, the processing degree of difficulty is less, and the precision is higher, and the cost is lower. The subassembly volume is less, and part is small in quantity, does not have gas leakage point and fault action point, has effectively solved the not enough of prior art.
In order to achieve the above object, the present invention provides an exhalation valve for an anesthesia respirator, comprising: a valve body, a diaphragm, an end cover, a cover plate,
a cover plate is arranged above the diaphragm, an end cover is arranged above the cover plate, the driving gas inlet and the expiration outlet are arranged at the lower end of the valve body in parallel, the driving gas inlet is vertically arranged at one end of the valve body, and the expiration outlet corresponds to the valve port; the loop air port is positioned at the other end of the valve body; wherein the content of the first and second substances,
the diaphragm includes: the diaphragm main body is arranged on a valve port at the upper end of the valve body in a sealing mode through a valve body sealing part, and the diaphragm main body is sleeved in the diaphragm fixing part through the sensitive connecting part; and a steady flow noise reduction column is arranged in the vertical direction of the central position of the diaphragm main body.
Preferably, the valve body is provided with a positioning groove, the cover plate is provided with a positioning bulge, and the positioning bulge on the cover plate corresponds to the groove on the valve body.
Preferably, the diaphragm main body, the diaphragm fixing part, the sensitive connecting part and the flow stabilizing and noise reducing column are of an integrated structure;
the membrane fixing part and the membrane main body are positioned on the same horizontal plane;
the sensitive connecting part structure is an ultrathin U-shaped structure and is used for controlling the opening degree;
the diaphragm fixing part structure is of a circular ring structure and is relatively thick and used for increasing the stability of the diaphragm.
Preferably, the thickness of the sensitive connecting part is 0.3-0.9mm, and the thickness of the membrane fixing part is 2-5 mm.
Preferably, the sealing part of the valve body is in a disc-shaped structure and is thicker, so as to enhance the sealing performance.
Preferably, the thickness of the sealing part of the valve body is 4-8 mm.
Preferably, the end cover is internally provided with a multi-spiral thread for increasing screwing force; a plurality of semicircular anti-skidding protrusions are arranged on the periphery of the outer part of the end cover and used for increasing the friction force between the hand part and the end cover;
preferably, the cover plate is used for constant pressure gas control;
preferably, the valve body driving air inlet, the expiration air outlet and the return air port are arranged in a cone-shaped joint structure.
Preferably, the loop air port is arranged as a pagoda joint and is used for connecting and arranging a clamp on a pipeline.
Preferably, the positioning and mounting position of the valve body is provided with a mounting hole, and an annular reinforcing rib structure is arranged around the valve body and used for increasing mechanical strength and coarse positioning.
Preferably, the valve body of the exhalation valve further comprises an exhaust gas inlet located at one side of the valve body for receiving the component exhaust gas.
Compared with the prior art, the invention has the advantages that:
1) the valve body of the invention integrates the structures of a driving air inlet, a loop air port and an expiration outlet, thereby reducing expiration resistance; the inlet and the exhalation outlet of the valve body driver adopt a standard conical interface structure, so that the valve body driver is convenient to standard and universal, and the valve body is provided with an annular reinforcing rib structure around the mounting hole, so that the mechanical strength and the coarse positioning are enhanced.
2) The valve body diaphragm mounting position is provided with a positioning groove structure which is matched for positioning; the diaphragm is provided with a flow stabilizing and noise reducing column structure to reduce noise; the diaphragm is provided with an ultrathin U-shaped ultrasensitive connecting part structure, and the opening degree is flexibly controlled; the diaphragm is provided with a disc-shaped thick sealing part structure, so that the sealing performance is enhanced and the service life is prolonged; the diaphragm is provided with a circular ring-shaped fixing part structure, so that the diaphragm is relatively thick, and the stability of the diaphragm can be improved.
3) The cover plate is provided with a positioning bulge structure which is matched with the valve body for positioning; the end cover is internally provided with a multi-spiral structure which is matched with the valve body in a threaded manner, so that the friction force is increased, and the anti-loosening is realized, and the tool-free assembly and maintenance are convenient to realize; the end cover is externally provided with a plurality of semicircular bulges, so that the friction force between the hand and the end cover is increased, and tool-free assembly and maintenance are facilitated.
4) The valve body is integrally designed to ensure that the driving air inlet and the exhalation outlet are positioned on the same mounting surface, so that the external pipeline is convenient to connect; the gas port of the valve body loop is provided with a conical joint structure, so that the connection of an internal rubber pipe and the fixation of a binding belt are facilitated.
Drawings
FIG. 1 is a view of the main body of the exhalation valve body of the present invention;
FIG. 2 is a top view of the exhalation valve of the present invention;
FIG. 3 is a front view of a diaphragm of the present invention;
FIG. 4 is a cross-sectional view of a diaphragm of the present invention;
FIG. 5 is a perspective view of a diaphragm of the present invention
FIG. 6 is a cross-sectional view of the valve body of the present invention;
FIG. 7 is a schematic view of the end cap thread configuration of the present invention;
FIG. 8 is a schematic view of the structure of the anti-slip protrusions of the end cap of the present invention;
FIG. 9 is a front view of the cover of the present invention;
FIG. 10 is a top view of the cover plate of the present invention;
FIG. 11 is a diagram of the inspiratory state of the exhalation valve of the present invention;
figure 12 is a diagram of the exhalation state of the exhalation valve of the present invention.
Reference numerals:
1. the valve body, 2, the end cover, 3 and the diaphragm; 4. the device comprises a cover plate, 5, a driving gas inlet, 6, a loop gas port, 7, an expiration outlet, 8, a waste gas inlet, 9, a mounting hole, 10, a circular reinforcing rib, 11, a conical joint, 12, a steady-flow noise reduction column, 13, a membrane fixing part, 14, a sensitive connecting part, 15, a valve port sealing part, 16, a membrane fixing base table, 17, a positioning groove, 18, a positioning bulge, 19, a main exhaust passage, 20, an anti-skid bulge, 21, threads, 22 and a membrane main body.
Detailed Description
The invention is further illustrated by the following examples and figures.
The invention provides an expiratory valve for an anesthesia respirator, as shown in figures 1-10, the expiratory valve comprises a valve body 1, a diaphragm 3, an end cover 2 and a cover plate 4, wherein a driving air inlet 5, a loop air port 6 and an expiratory outlet 7 are positioned on the valve body, a positioning groove 17 is arranged on the valve body 1, a positioning bulge 18 is arranged on the cover plate 4, and the cover plate 4 is used for controlling air at a constant pressure; the positioning projection 18 on the cover plate 4 corresponds to the groove 17 on the valve body 1. The threads 21 with a multi-spiral structure are designed in the end cover 2, so that screwing force is effectively increased; the valve body 1 is provided with a driving air inlet 5, and when air flows in from the driving air inlet, the constant pressure air control presses the diaphragm to ensure that the air enters the folding bag through the loop air port to finish the air suction process. After inhaling, level pressure accuse gas pressure reduces, and the diaphragm is got rid of through exhaling the export under folding the gaseous promotion in the bag, and the valve body sets up many spiral threads, can accomplish the equipment through bare-handed operation, promotes assembly efficiency greatly.
A plurality of semicircular anti-slip protrusions 20 are arranged around the outer part of the end cover 2 and used for increasing the friction force between the hand and the end cover. The valve body driving air inlet 5, the expiration outlet 7 and the loop air port 6 are arranged into a conical joint 11 structure. Wherein, the drive gas adopts the line mark awl to connect, but the direct insertion appointed silica gel hose. The return circuit gas port sets up to the pagoda joint, and the pipe connection of being convenient for sets up the clamp, reduces and reveals the risk.
Mounting hole 9 is established to the location installation department of valve body 1, and is equipped with annular strengthening rib structure on every side for increase mechanical strength and thick location, promptly, the round hole is established to valve body location installation department, and establishes circular strengthening rib 10, can be convenient for thick location when increasing intensity, promote big subassembly assembly efficiency.
The valve body of the exhalation valve also comprises an exhaust gas inlet which is positioned on one side of the valve body and used for receiving the exhaust gas of the element. And are positioned at one side of the valve body, and at present, two are arranged and are communicated with the expiration outlet.
The diaphragm 3 is arranged on a valve port at the upper end of the valve body 1 from top to bottom, a cover plate 4 capable of being connected with constant-pressure gas control is arranged above the diaphragm 3, an end cover 2 is arranged above the cover plate 4, the driving gas inlet 5 and the expiration outlet 7 are arranged at the lower end of the valve body 1 in parallel, the driving gas inlet 5 is vertically arranged at one end of the valve body 1, and the expiration outlet 7 corresponds to the valve port in position, namely, after the valve port and the diaphragm are sealed and opened, gas is exhaled from the expiration outlet; the loop gas port 2 is positioned at the other end of the valve body 1; wherein, this diaphragm 3 is the silica gel material, and the valve body adopts the PC material, and natural state diaphragm and valve port have the clearance. The diaphragm comprises a diaphragm main body 22, a diaphragm fixing part 13 and a sensitive connecting part 14, wherein the diaphragm main body 22 is sleeved in the diaphragm fixing part 13, and the diaphragm main body is connected with the diaphragm fixing part through the sensitive connecting part 14; a steady flow noise reduction column is arranged in the vertical direction of the diaphragm main body 22; the diaphragm body is sealed with the valve port by a valve body seal 15. The diaphragm main body 22, the diaphragm fixing part 13, the sensitive connecting part 14 and the flow stabilizing and noise reducing column 12 are of an integrated structure; the membrane fixing part 13 and the membrane main body 22 are positioned on the same horizontal plane; the steady flow noise reduction column 12 is arranged in the vertical direction of the center of the diaphragm main body 22; the sensitive connecting part 14 is of an ultrathin U-shaped structure and is used for controlling the opening, and the thickness of the sensitive connecting part is 0.6 mm; the membrane fixing part structure 13 is a circular ring-shaped structure, is relatively thick and is used for increasing the stability of the membrane, and the thickness of the membrane fixing part is 3 mm; the valve body sealing part 15 is of a disc-shaped structure, is thick and is used for enhancing the sealing performance, and the thickness of the valve body sealing part is 6 mm.
As shown in figures 11-12, the valve body is used for connecting and fixing all the components together, the membrane 3 is arranged on a membrane fixing base 16 of the valve body 1, the air control cover plate 4 is pressed on the upper part, the component positioning bulge 18 is matched with the valve body positioning groove 17, the membrane is firmly fixed, and the service life of the membrane is prolonged. The diaphragm is designed by adopting silica gel with special hardness, and is sensitive to the change of air control pressure, so that the control precision is increased, the valve port sealing part made of the silica gel is relatively thick, the opening and closing of the valve port can be flexibly controlled, and the flow stabilizing and noise reducing column is arranged below the valve port sealing part to reduce the air flow resonance noise. The top of accuse gas apron sets up the screw thread that the end cover has many helicla constructions, and convenient even fastening is sealed.
The diaphragm of the invention changes up and down along with the change of the constant pressure air control pressure to cause the change of the drift diameter, when the air control pressure (in an expiration state) is smaller, the diaphragm is slightly bent, the drift diameter is larger, the expiration process is smooth and can be closed after reaching the corresponding PEEP value, when the air control pressure is increased and enters an inspiration stage (in an inspiration state), the main exhaust passage 19 is closed, the driving air directly enters the manifold block to drive the leather bag to inhale, and the inspiration process of a patient is completed. In the process of flow and pressure increase, the diaphragm continuously rises upwards, the effect of increasing the drift diameter is achieved, and the rapid exhaust can be compatible. Meanwhile, the diaphragm is provided with the ultrasensitive connecting part, so that the response and the action are very rapid, and the flow stabilizing and noise reducing column is arranged, so that a relatively critical effect is achieved on the improvement of noise indexes.
The invention not only reduces the local resistance, but also solves the problems of long response time, poor control precision, more accessory parts, air leakage points and action fault points and the problem of difficult maintenance and repair. The control precision is greatly improved, the response time is greatly shortened, the maintenance is extremely convenient, and the production, use and after-sale maintenance cost of the product is effectively reduced.
Conventional technical knowledge in the art can be used for the details which are not described in the present invention.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An exhalation valve for an anesthesia ventilator, said exhalation valve comprising: a valve body, a diaphragm, an end cover and a cover plate, which is characterized in that,
a cover plate is arranged above the diaphragm, an end cover is arranged above the cover plate, the driving gas inlet and the expiration outlet are arranged at the lower end of the valve body in parallel, the driving gas inlet is vertically arranged at one end of the valve body, and the expiration outlet corresponds to the valve port; the loop air port is positioned at the other end of the valve body; wherein the content of the first and second substances,
the diaphragm includes: the diaphragm main body is arranged on a valve port at the upper end of the valve body in a sealing mode through a valve body sealing part, and the diaphragm main body is sleeved in the diaphragm fixing part through the sensitive connecting part; and a steady flow noise reduction column is arranged in the vertical direction of the central position of the diaphragm main body.
2. The exhalation valve for an anesthetic breathing apparatus as claimed in claim 1, wherein the valve body is provided with a positioning groove, the cover plate is provided with a positioning protrusion, and the positioning protrusion on the cover plate corresponds to the groove on the valve body.
3. The exhalation valve for an anesthetic breathing apparatus as claimed in claim 1, wherein the diaphragm main body, the diaphragm fixing portion, the sensitive connecting portion, and the flow stabilizing and noise reducing post are of an integrated structure;
the membrane fixing part and the membrane main body are positioned on the same horizontal plane;
the sensitive connecting part structure is a U-shaped structure and is used for controlling the opening degree;
the diaphragm fixing part structure is of a circular ring structure and is used for increasing the stability of the diaphragm.
4. The exhalation valve for an anesthetic breathing apparatus as claimed in claim 3, wherein the thickness of the sensitive connection portion is 0.3-0.9mm, and the thickness of the diaphragm fixing portion is 2-5 mm.
5. The exhalation valve for an anesthetic breathing apparatus as claimed in claim 1, wherein the valve body seal portion structure is a disk-shaped structure for enhancing sealing performance.
6. The exhalation valve for an anesthetic breathing apparatus as claimed in claim 5, wherein the valve body seal portion has a thickness of 4-8 mm.
7. The exhalation valve for an anesthetic breathing apparatus as claimed in claim 1, wherein the end cap is internally provided with a multi-spiral thread for increasing the screwing force;
a plurality of semicircular anti-skidding protrusions are arranged on the periphery of the outer part of the end cover and used for increasing the friction force between the hand part and the end cover;
the cover plate is used for controlling gas at constant pressure;
the valve body driving air inlet, the expiration outlet and the loop air port are arranged to be cone-shaped joint structures.
8. The exhalation valve for an anesthesia respirator of claim 1, wherein the circuit port is configured as a pagoda fitting for a tubing connection configuration clip.
9. The exhalation valve for an anesthesia respirator as claimed in claim 1 wherein the valve body has a positioning hole at the location of the valve body and an annular rib structure around the valve body for increasing mechanical strength and coarse positioning.
10. The exhalation valve for an anesthetic breathing apparatus as claimed in claim 1, wherein the valve body of the exhalation valve further comprises an exhaust gas inlet located at a side of the valve body for receiving element exhaust gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282912.9A CN113975581A (en) | 2021-11-01 | 2021-11-01 | Expiratory valve of anesthesia respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282912.9A CN113975581A (en) | 2021-11-01 | 2021-11-01 | Expiratory valve of anesthesia respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113975581A true CN113975581A (en) | 2022-01-28 |
Family
ID=79745356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111282912.9A Pending CN113975581A (en) | 2021-11-01 | 2021-11-01 | Expiratory valve of anesthesia respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113975581A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889158A (en) * | 1988-08-26 | 1989-12-26 | Fisher Controls International, Inc. | Pressure/flow compensated direct acting pressure regulator |
| EP0398858A2 (en) * | 1989-05-15 | 1990-11-22 | Fisher Controls International, Inc. | Boost modified, droop compensated direct acting pressure regulator |
| US5127400A (en) * | 1990-03-23 | 1992-07-07 | Bird Products Corp. | Ventilator exhalation valve |
| CN2697419Y (en) * | 2004-03-05 | 2005-05-04 | 魏光第 | Pressure regulator for marsh gas |
| CN200961546Y (en) * | 2006-10-17 | 2007-10-17 | 东风襄樊仪表系统有限公司 | Vacuum alarm |
| US20080142091A1 (en) * | 2004-03-12 | 2008-06-19 | Uwe Meinig | Pneumatic Pressure Regulation Valve |
| CN101642597A (en) * | 2008-08-05 | 2010-02-10 | 北京谊安医疗系统股份有限公司 | Expiratory valve |
| CN201847694U (en) * | 2010-11-05 | 2011-06-01 | 李霞 | Stethoscope head |
| CN103372256A (en) * | 2012-04-27 | 2013-10-30 | 上海力申科学仪器有限公司 | Exhalation membrane valve |
| CN204573231U (en) * | 2015-05-05 | 2015-08-19 | 合肥依科普工业设备有限公司 | Adjustable zero-pressure valve |
| CN105485982A (en) * | 2015-12-30 | 2016-04-13 | 浙江新劲空调设备有限公司 | Vibration and noise reduction expansion valve |
| CN208212279U (en) * | 2017-12-12 | 2018-12-11 | 深圳融昕医疗科技有限公司 | Outlet valve and ventilator with it |
-
2021
- 2021-11-01 CN CN202111282912.9A patent/CN113975581A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889158A (en) * | 1988-08-26 | 1989-12-26 | Fisher Controls International, Inc. | Pressure/flow compensated direct acting pressure regulator |
| EP0398858A2 (en) * | 1989-05-15 | 1990-11-22 | Fisher Controls International, Inc. | Boost modified, droop compensated direct acting pressure regulator |
| US5127400A (en) * | 1990-03-23 | 1992-07-07 | Bird Products Corp. | Ventilator exhalation valve |
| CN2697419Y (en) * | 2004-03-05 | 2005-05-04 | 魏光第 | Pressure regulator for marsh gas |
| US20080142091A1 (en) * | 2004-03-12 | 2008-06-19 | Uwe Meinig | Pneumatic Pressure Regulation Valve |
| CN200961546Y (en) * | 2006-10-17 | 2007-10-17 | 东风襄樊仪表系统有限公司 | Vacuum alarm |
| CN101642597A (en) * | 2008-08-05 | 2010-02-10 | 北京谊安医疗系统股份有限公司 | Expiratory valve |
| CN201847694U (en) * | 2010-11-05 | 2011-06-01 | 李霞 | Stethoscope head |
| CN103372256A (en) * | 2012-04-27 | 2013-10-30 | 上海力申科学仪器有限公司 | Exhalation membrane valve |
| CN204573231U (en) * | 2015-05-05 | 2015-08-19 | 合肥依科普工业设备有限公司 | Adjustable zero-pressure valve |
| CN105485982A (en) * | 2015-12-30 | 2016-04-13 | 浙江新劲空调设备有限公司 | Vibration and noise reduction expansion valve |
| CN208212279U (en) * | 2017-12-12 | 2018-12-11 | 深圳融昕医疗科技有限公司 | Outlet valve and ventilator with it |
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