WO2013097688A1 - 旁通阀 - Google Patents
旁通阀 Download PDFInfo
- Publication number
- WO2013097688A1 WO2013097688A1 PCT/CN2012/087372 CN2012087372W WO2013097688A1 WO 2013097688 A1 WO2013097688 A1 WO 2013097688A1 CN 2012087372 W CN2012087372 W CN 2012087372W WO 2013097688 A1 WO2013097688 A1 WO 2013097688A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- valve
- gas passage
- gasket
- valve body
- Prior art date
Links
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
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- 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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/18—Vaporising devices for anaesthetic preparations
- A61M16/183—Filling systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre
-
- 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
- A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7859—Single head, plural ports in parallel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7879—Resilient material valve
- Y10T137/7888—With valve member flexing about securement
- Y10T137/789—Central mount
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87917—Flow path with serial valves and/or closures
- Y10T137/88046—Biased valve with external operator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87917—Flow path with serial valves and/or closures
- Y10T137/88054—Direct response normally closed valve limits direction of flow
Definitions
- the present invention relates to the field of medical devices, and more particularly to a bypass valve.
- the anesthesia machine is a device with high requirements for safety, stability and easy operation of the operating room. It sends the anesthetic into the patient's alveoli through a mechanical circuit to form a partial pressure of the anesthetic gas, which is diffused into the blood and directly to the central nervous system. Inhibition occurs, resulting in the effect of general anesthesia.
- the anesthesia machine mainly includes four parts: the gas supply system, the volatile tank, the ventilator and the circuit system.
- the anesthesia vaporizer is an important component of the anesthesia machine, which provides a stable, precise concentration of anesthetic mixture to the patient through an anesthesia machine. It can effectively evaporate anesthetics; it can also accurately control the output concentration of anesthetic vapor.
- the anesthesia machine and the anesthetic evaporator are connected by a bypass valve.
- the anesthesia machine delivers gas to the patient through the bypass valve.
- the bypass valve functions as a passage for conveying the gas, so that the gas should not be leaked outward, if the airtightness is not good enough. Some gas will leak out, causing waste of resources.
- it should also ensure that the gas flowing through the bypass valve has no gas resistance or small gas resistance, so as to provide smooth gas supply to the patient;
- the bypass valve has its own gas delivery channel closed, all the gas flows through the anesthetic evaporator, and the evaporator output enters the anesthesia machine through the bypass valve again, and delivers the patient end.
- the bypass valve should ensure that the anesthetic does not leak, if the gas Poor density, resulting in leakage of anesthetic, not only a waste of resources, but also an anesthesia for doctors, greatly affecting the quality of surgery and patient safety.
- the conventional bypass valves have an air inlet and an air outlet.
- gas enters the evaporator from the air inlet through the bypass valve, and the output of the evaporator passes through the air outlet of the bypass valve to enter the downstream of the anesthesia machine. Delivery to the patient end, during the actual operation, when the pressure of the outlet port fluctuates, the gas will flow backwards, resulting in an inaccurate concentration of the anesthetic gas output, which is inconvenient for use; at the same time, the traditional bypass valve also has a structural process. Sexual defects, as well as defects such as insufficient air tightness.
- the object of the present invention is to solve the problem that the gas flow backflow phenomenon occurs when the outlet port of the conventional bypass valve has a pressure fluctuation, which further leads to an inaccurate concentration of the output anesthetic gas, and provides a bypass valve which passes through the bypass valve.
- the gas port is provided with a check valve, which makes the gas flow direction unique, does not cause gas backflow phenomenon, and has the advantages of structural processability and better air tightness.
- a bypass valve includes a valve body, the valve body has an air inlet and an air outlet, and a check valve is disposed at the air outlet, the check valve includes a one-way valve body, a gas permeable plate and a first a gasket having a first gas passage for gas supply inside, a gas permeable plate having a gas permeable hole, the gas permeable hole communicating with the gas outlet, the first gasket being disposed at Between the gas permeable plate and the one-way valve body, the first gas passage and the venting hole are selectively communicated through the first gasket.
- valve body is provided with a valve cover, the valve cover has a second gas passage therein, the body has a third gas passage, a first cavity communicating with the intake port, and a first a second cavity communicating with the cavity, the second cavity and the third gas passage are used for the bypass valve to deliver gas when the evaporator is not turned on, and the first cavity is in communication with the second cavity.
- the air outlet is provided with a stepped annular groove on the valve body, which is a first annular groove and a second annular groove, respectively, and the gas permeable plate is installed in the first annular groove, and is closely attached to the An outer end surface of the gas permeable plate fastens the valve body to the valve body by a screw, at a joint of the gas permeable plate and the valve body, the check valve body and the valve
- the joints of the body are provided with a sealing ring.
- the upper portion of the first cavity has an internal thread
- the valve cover is matched with the internal thread and provided with an external thread, so that the cover is screwed on the body, and the cover is cut on the cover.
- Grooves are respectively located on upper and lower sides of the external thread, and a sealing ring is disposed in both grooves, and a sealing ring on the upper side of the external thread is used to reinforce between the valve cover and the evaporator The airtightness of the sealing ring on the lower side of the external thread is used to strengthen the airtightness between the valve cover and the valve body;
- the third gas passage is disposed below the first cavity and communicates with the bottom of the first cavity such that the second gas passage and the third gas passage are oppositely disposed corresponding to the second gas
- the outlet of the passage is provided with a first boss at the bottom of the valve cover, and a second boss is disposed at the bottom of the first cavity corresponding to the inlet of the third gas passage.
- a third annular groove is disposed at an end of the one-way valve body contacting the gas permeable plate, and the third annular groove is in communication with the first gas passage;
- the gas permeable plate has a circular shape as a whole, and has a stepped surface at its outer edge for mounting a sealing ring, the gas permeable plate has a central hole, and has a plurality of venting holes;
- a first gasket is disposed between the gas permeable plate and the one-way valve body, and the gas outlet is selectively in communication with the first gas passage by movement of the first gasket.
- a valve body is disposed in the installation space composed of the second gas passage, the first cavity, and the third gas passage, and the valve core is provided with a second gasket, and the second gasket is located Between the first boss and the second boss, the first cavity is selectively in communication with the second gas channel and the third gas channel by the up and down movement of the second gasket.
- the first gasket includes a disc portion and a rod portion, the rod portion is disposed at a center of the disc portion, and the first gasket is mounted on the gas permeable plate and the check valve Between the valve bodies, such that the rod portion passes through the central hole, and the length of the rod portion is greater than the thickness of the gas permeable plate, and the outer end of the rod portion is provided with a limit cap to First The gasket does not fall off the gas permeable plate, and when the disk portion is in close contact with the gas permeable plate, the vent hole and the third annular groove are blocked, the gas outlet and the first The gas channel is blocked.
- valve core comprises a gland, an upper spring, a valve stem and a lower spring connected in sequence from top to bottom;
- the upper end of the gland has a first protrusion, and a second protrusion is disposed inwardly at an upper end of the valve cover corresponding to the first protrusion, and the second protrusion is located at an inlet of the second gas passage Retaining the gland in the second gas passage by the cooperation of the first protrusion and the second protrusion, the gland is generally cylindrical, and is straight and cut at the periphery thereof , and a circular arc-shaped guide is left at the center of the straight side.
- the outer diameter of the disc portion is smaller than the inner diameter of the third annular groove, and the third annular groove is provided with a plurality of limiting protrusions of the disc portion, and the third annular groove and the The first gas passage is in communication, and an outlet pipe joint is screwed to the outer end of the first gas passage.
- the bottom of the bottom of the gland extends upwardly with an upper mounting groove, and the upper mounting notch is rounded, and the center of the top of the valve stem extends downwardly with a lower mounting groove, and the upper end of the spring Installed in the upper mounting slot and the other end in the lower mounting slot;
- An annular body is disposed in a middle portion of the valve stem, and an upper portion of the annular body has a tapered surface, and a second gasket mounting groove is formed on the valve stem against a lower end surface of the annular body, and the second gasket passes through a second gasket mounting groove is mounted on the mast, the lower spring sleeve is disposed on a periphery of the lower portion of the mast, one end is disposed in the third gas passage, and the other end is in contact with the lower end surface of the second gasket .
- the beneficial effects of the invention are as follows: by providing a one-way valve at the air outlet of the valve body, when the gas flows in a normal flow direction, the one-way valve is opened, and the gas flows smoothly; when the pressure is fluctuated at the air outlet, the gas is reversed.
- the check valve includes a one-way valve body, a gas permeable plate, and the two are connected to the first gasket to open or close the one-way valve, when the gas
- the flow direction is normal flow direction, that is, from the first cavity to the air outlet, under the action of the gas pressure, the first gasket is pushed to move toward the first gas passage side, so that a gap occurs between the first gasket and the gas permeable plate.
- the gas flows from the vent hole to the first gas passage to realize the output of the gas; when the gas reversely flows backward, that is, flows inward from the first gas passage, under the action of the gas pressure, the first gasket is pressed against the gas permeable plate, Further, the first gas passage and the air outlet are blocked, and the gas cannot flow from the first gas passage into the bypass valve; the valve cover and the valve body are strengthened by providing a double seal ring at the joint between the valve cover and the valve body, The airtightness between the evaporators; the airtightness between the one-way valve and the valve body is enhanced by providing a sealing ring at the joint of the one-way valve body and the valve body, and at the junction of the gas permeable plate and the valve body .
- the bypass valve of the present invention has the advantages of ensuring unique gas flow direction, simple structure, and better air tightness.
- Figure 1 is a partial cross-sectional view showing the bypass valve of the present invention
- Figure 2 is a schematic cross-sectional view of the valve body shown in Figure 1;
- Figure 3 is a cross-sectional view of the valve cover shown in Figure 1;
- Figure 4 is a perspective view of the gland shown in Figure 1;
- Figure 5 is a cross-sectional view of the gland shown in Figure 1;
- Figure 6 is a perspective view of the valve stem shown in Figure 1;
- Figure 7 is a cross-sectional view of the valve stem shown in Figure 1;
- Figure 8 is a perspective view of the check valve body shown in Figure 1;
- Figure 9 is a cross-sectional view of the check valve body shown in Figure 1;
- Figure 10 is a perspective view of the gas permeable plate shown in Figure 1;
- Figure 11 is a cross-sectional view showing the gas permeable panel shown in Figure 1;
- Figure 12 is a perspective view of the first gasket shown in Figure 1.
- valve cover 21, a second gas passage; 22, a second protrusion; 23, a first boss; 24, a second groove; 25, a third groove;
- a gland 31, a gland; 311, a first protrusion; 312, an upper mounting groove; 313, a guiding portion;
- valve stem 33, lower mounting groove; 332, annular body; 333, second gasket mounting groove;
- the bypass valve of the present invention includes a valve body 1, a valve body 1 has an air inlet and an air outlet, and a check valve 4 is disposed at the air outlet, the check valve 4 includes a check valve body 41, a gas permeable plate 42 and a first gasket 43, and the check valve body 41 has a inside
- the first gas passage 411 for gas transmission the gas permeable plate 42 has a venting hole 421, the venting hole 421 is in communication with the gas outlet, and the first gasket 43 is disposed between the gas permeable plate 42 and the check valve body 41, the first gas
- the passage 411 and the venting hole 421 are selectively communicated by the first gasket 43.
- the check valve 4 When the gas flows out from the air outlet, the check valve 4 is opened, and a gap is formed between the first gasket 43 and the gas permeable plate 42 so that The venting hole 421 communicates with the first gas passage 411 to realize normal gas output.
- the check valve 4 When the pressure of the air outlet is fluctuating, the gas is reversed, the check valve 4 is closed, and the first gasket 43 is in close contact with the gas permeable plate 42 to The vent hole 421 is blocked from the first gas passage 411, so that the gas cannot flow back into the bypass valve.
- the valve body 1 is provided with a valve cover 2, a valve core 3 is disposed between the valve cover 2 and the valve body 1, and a second gasket 35 is mounted on the valve core 3, and the valve core 3 includes a gland connected in series from top to bottom. 31.
- the valve body 1 has a first cavity 11 communicating with an air inlet (not shown), and a first cavity 11 communicating with the first cavity 11.
- the second cavity 12, the third gas passage 13, the upper portion of the first cavity 11 has an internal thread for screwing the valve cover 2, and the second cavity 12 and the third gas passage 13 are used for the bypass valve
- the gas is delivered when the evaporator is turned on, and the third gas passage 13 is located below the first cavity 11 and communicates with the bottom of the first cavity 11, and the inlet of the corresponding third gas passage 13 is disposed at the bottom of the first cavity 11.
- the second boss 16 has concentrically opened two annular grooves at the air outlet, respectively a first annular groove 14 and a second annular groove 15, and is further provided with a first groove 17 for mounting a single
- a sealing ring 5 is disposed inside the first groove 17 of the gas permeable plate 42 of the valve. Since it is located at the junction of the check valve and the bypass valve, the airtightness between the check valve and the bypass valve can be enhanced. effect.
- Fig. 3 a specific embodiment of the valve cover is shown.
- the valve cover 2 has a hollow structure with a second gas passage 21 inside, the bottom of which is the outlet of the second gas passage 21, and the top is the second.
- the outlet of the second gas passage 21 is provided with a first boss 23 at the bottom of the valve cover 2, and the upper portion of the valve cover 2 has a second protrusion 22 inward.
- the external thread is disposed, and the second IHJ groove 24 and the third IHJ groove 25 are respectively disposed on the valve cover 2 on the upper and lower sides of the external thread, and the sealing ring 5 is disposed in the second IHJ groove 24 and the third IHJ groove 25
- the sealing ring 5 on the upper side of the threaded connection ensures airtightness between the bonnet 2 and the evaporator, and the sealing ring 5 on the lower side of the threaded connection ensures
- the valve body 1 and the valve cover 2 have good airtightness.
- the valve core 3 includes a gland 31, an upper spring 32, a valve stem 33, and a lower spring 34.
- the gland 31 has a cylindrical shape as a whole. The outer circumference is evenly slit and has four straight sides, and the straight side can form a gas passage between the lid 2 and the gland 31, and a circular arc-shaped guiding portion 313 is left at the center of the straight side, and the guiding portion 31 3 can The gland 31 is moved smoothly and reliably inside the bonnet 1.
- the upper part of the gland 31 is provided with a first protrusion 311, and the bottom center extends upwardly with an upper mounting groove 312, and the upper mounting groove 312 is rounded and rounded for easy and upper
- the top center of the valve stem 33 extends downwardly with a lower mounting groove 331.
- the middle portion of the valve stem 33 is provided with an annular body 332.
- the upper portion of the annular body 332 has a tapered surface, and the lower end surface of the annular body 332 is adjacent to the valve.
- a second gasket mounting groove 333 is opened in the rod 33.
- the upper spring 32-end is installed in the upper mounting groove 312, the other end is installed in the lower mounting groove 331, and the second gasket 35 is mounted on the mast 33 through the second gasket mounting groove 333, and the lower spring 34 is sleeved.
- valve stem 33 On the lower periphery of the valve stem 33, one end is placed in the third gas passage 13 and the other end is in contact with the lower end surface of the second gasket 35, and then the valve core 3 is aligned inside the valve cover 1, by compressing the upper and lower springs 32, 34 screwing the valve cover 2 to the valve body 1 through the first protrusion 311 and the second protrusion 22 Tightening each other, the gland 31 is confined in the second gas passage 21, and the second gasket 35 is located opposite to the third gas passage 13 and the second gasket 35 is located at the first boss 23 and the second boss 16 Meanwhile, when the second gasket 35 moves upward and is tightened with the first boss 23, the second gas passage 21 is blocked, and the first cavity 11 communicates with the third gas passage 13; when the second gasket When the downward movement and the second boss 16 are tightened, the third gas passage 13 is blocked, and the first cavity 11 communicates with the second gas passage 21.
- the one-way valve 4 is installed at the air outlet, and includes a one-way valve body 41 and a gas permeable plate 42, a one-way valve body There is a first gas passage 411 therein, and a third annular groove 412 is opened at the inlet of the first gas passage 411.
- the third annular groove has a plurality of limiting protrusions 413 therein, and the outlet of the first gas passage 411 passes through the thread.
- the check valve body 41 is also provided with a threaded hole, so that it can be connected to the valve body 1 by screws;
- the gas permeable plate 42 is generally circular, has a central hole, and has four venting holes 421, the outer edge of the gas permeable plate 42 is cut with a step surface 422, and the step surface 422 is provided with a sealing ring 5;
- a first gasket 43 is disposed between the gas permeable plate 42 and the check valve body 41, the first gasket 43 including a disk portion 431 and a rod portion 432, and the rod portion 432 is disposed at the center of the disk portion 431 And the length of the rod portion 432 is greater than the thickness of the gas permeable plate 42, the rod portion 432 can be moved back and forth in the central hole of the gas permeable plate 42, in order to prevent the first gasket 43 from falling off the gas permeable plate 42, at the rod portion 432
- the end portion is provided with a limiting cap 433.
- the outer shape of the limiting cap 433 is larger than the central aperture, and a plurality of limiting protrusions 413 are disposed in the third annular groove 412 to limit the position of the disc portion 431.
- the rod portion 432 and the limiting cap 433 are first penetrated into the central hole of the gas permeable plate 42, and then the gas permeable plate 42 and the sealing ring 5 are installed in the first annular groove 14 to
- the limiting cap 433 is placed in the second annular groove 15, and the disc portion 431 is bonded to the rod portion 432, and the sealing ring 5 is placed in the first recess 17, and the disc portion 431 and the third ring are made.
- the one-way valve body 41 is fastened to the valve body 1 by screws. Since the outer diameter of the disk portion 431 is smaller than the inner diameter of the third annular groove 412, the disk portion 431 is placed in the third annular groove 412. When the disc portion 431 is in close contact with the gas permeable plate 42, it can block the vent hole 421 to block the gas outlet from the first gas passage 411.
- bypass valve of the present invention As shown in Fig. 1, only the partial structure of the bypass valve of the present invention is shown, and the bypass valve actually has two identical valve covers, all of which are installed. On the valve body, the valve body has two independent gas paths.
- the bypass valve at this time actually acts as a gas passage, and the gas enters the valve body from the intake pipe joint, and finally
- the second cavity 12 outputs; when the bypass valve is connected to the evaporator, both valve covers are connected to the evaporator, (ie, one evaporator needs to cooperate with the two valve covers at the same time to achieve the connection with the bypass valve),
- the gas enters the inside of the valve body from the intake pipe joint, enters the evaporator from the first valve cover, and then enters the valve body from the evaporator through the second valve cover, and finally outputs from the pipe joint at the air outlet.
- the upper part of the bonnet is designed as a hexagonal structure, and its main function is to facilitate the assembly with the valve body (ie, the peripheral structure of the bonnet is mainly used for matching with the assembly tool), and each bypass valve can be attached at the same time. Or multiple evaporators.
- the bypass valve When the evaporator is not turned on, the bypass valve at this time actually functions as a gas passage, the second chamber 12 is the outlet end portion of the gas passage, and the gland 31 is not depressed, and the lower spring 34 is Under the elastic force, the second gasket 35 is pressed against the first boss 23, the second gas passage 21 is blocked, the gas enters the third gas passage 13 from the air inlet, and enters the second chamber through the first cavity 11
- the body 12 is then passed downstream of the anesthesia machine through a bypass valve conduit and a connector (not shown).
- the gland 31 When the evaporator is turned on, the gland 31 is depressed, so that the second gasket 35 is moved downward against the elastic force of the lower spring 34, and is tightened with the second boss 16, and the third gas passage 13 is blocked, anesthetized Gas
- the body enters the first cavity 11 from the second gas passage 21, flows into the air outlet through the second cavity 12, and when entering the inside of the second annular groove 15, the gas pressure pushes the first gasket 43 to the right to make the first
- a gap is formed between the gasket 43 and the gas permeable plate 42 through which the gas flows from the gas permeable hole 421 into the third annular groove 412, and then flows into the first gas passage 411 and is output from the pipe joint 6.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Emergency Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Pulmonology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Valve Housings (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/000,865 US8967194B2 (en) | 2011-12-30 | 2012-12-25 | Bypass valve |
EA201391161A EA025719B1 (ru) | 2011-12-30 | 2012-12-25 | Перепускной клапан |
BR112013023220A BR112013023220A2 (pt) | 2011-12-30 | 2012-12-25 | válvula de derivação |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110455688.9A CN103182129B (zh) | 2011-12-30 | 2011-12-30 | 旁通阀 |
CN201110455688.9 | 2011-12-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013097688A1 true WO2013097688A1 (zh) | 2013-07-04 |
Family
ID=48673737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2012/087372 WO2013097688A1 (zh) | 2011-12-30 | 2012-12-25 | 旁通阀 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8967194B2 (zh) |
CN (1) | CN103182129B (zh) |
BR (1) | BR112013023220A2 (zh) |
EA (1) | EA025719B1 (zh) |
WO (1) | WO2013097688A1 (zh) |
Cited By (1)
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CN109297115A (zh) * | 2018-11-13 | 2019-02-01 | 成都昶艾电子科技有限公司 | 一种高原氧气弥散终端 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104874082B (zh) * | 2014-02-28 | 2018-11-13 | 北京谊安医疗系统股份有限公司 | 电磁阀密封片和具有其的呼吸机 |
CN105841896A (zh) * | 2016-03-26 | 2016-08-10 | 宁波市宇华电器有限公司 | 一种钢塑管件密封性能测试装置 |
CN113827835B (zh) * | 2021-09-24 | 2024-05-28 | 杨杨 | 一种新型的医用氧气湿化装置及湿化方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB750152A (en) * | 1953-03-10 | 1956-06-13 | John Henry Blease | An improved valve for use in controlling human respiration |
US3795257A (en) * | 1972-03-27 | 1974-03-05 | Robertshaw Controls Co | Demand valve assembly for use with breathing or resuscitation equipment |
CN101584897A (zh) * | 2008-05-23 | 2009-11-25 | 北京航天长峰股份有限公司 | 采用气动阀和换向阀的麻醉气路 |
CN101943279A (zh) * | 2009-07-06 | 2011-01-12 | 北京谊安医疗系统股份有限公司 | 单向阀和麻醉机 |
CN102109052A (zh) * | 2009-12-23 | 2011-06-29 | 浙江三花制冷集团有限公司 | 单向阀和过滤器 |
CN202397935U (zh) * | 2011-12-30 | 2012-08-29 | 北京谊安医疗系统股份有限公司 | 医用气控阀 |
CN202590121U (zh) * | 2011-12-30 | 2012-12-12 | 北京谊安医疗系统股份有限公司 | 旁通阀 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2841142A (en) * | 1955-03-25 | 1958-07-01 | Air Reduction | Anesthetic administering apparatus |
US3630197A (en) * | 1968-11-29 | 1971-12-28 | Tukiko Hirano | Respiratory valve of nonrebreathing type for use in anaesthesia apparatus |
US3933171A (en) * | 1974-04-09 | 1976-01-20 | Airco, Inc. | Anesthesia breathing circuit with positive end expiratory pressure valve |
US4121580A (en) * | 1977-02-07 | 1978-10-24 | Robertshaw Controls Company | Squeeze bag resuscitator with air-oxygen proportionating control |
US4274404A (en) * | 1979-04-13 | 1981-06-23 | American Safety Flight Systems, Inc. | Oxygen supply system controlled by user exhalation |
US5002050A (en) * | 1986-09-17 | 1991-03-26 | Mcginnis Gerald E | Medical gas flow control valve, system and method |
GB9101560D0 (en) * | 1991-01-24 | 1991-03-06 | Boc Group Plc | Fluid delivery system |
US5239990A (en) * | 1991-05-17 | 1993-08-31 | Delphia John B | Snorkel with floating intake valve |
US9750905B2 (en) * | 2002-02-04 | 2017-09-05 | Fisher & Paykel Healthcare Limited | Breathing assistance apparatus |
US8522839B2 (en) * | 2006-03-06 | 2013-09-03 | Baxter International Inc. | Adapters for use with an anesthetic vaporizer |
JP5592485B2 (ja) * | 2009-06-19 | 2014-09-17 | ピラマル クリティカル ケアー インコーポレイテッド | バルブ付レシーバ |
-
2011
- 2011-12-30 CN CN201110455688.9A patent/CN103182129B/zh active Active
-
2012
- 2012-12-25 BR BR112013023220A patent/BR112013023220A2/pt not_active Application Discontinuation
- 2012-12-25 US US14/000,865 patent/US8967194B2/en not_active Expired - Fee Related
- 2012-12-25 EA EA201391161A patent/EA025719B1/ru not_active IP Right Cessation
- 2012-12-25 WO PCT/CN2012/087372 patent/WO2013097688A1/zh active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB750152A (en) * | 1953-03-10 | 1956-06-13 | John Henry Blease | An improved valve for use in controlling human respiration |
US3795257A (en) * | 1972-03-27 | 1974-03-05 | Robertshaw Controls Co | Demand valve assembly for use with breathing or resuscitation equipment |
CN101584897A (zh) * | 2008-05-23 | 2009-11-25 | 北京航天长峰股份有限公司 | 采用气动阀和换向阀的麻醉气路 |
CN101943279A (zh) * | 2009-07-06 | 2011-01-12 | 北京谊安医疗系统股份有限公司 | 单向阀和麻醉机 |
CN102109052A (zh) * | 2009-12-23 | 2011-06-29 | 浙江三花制冷集团有限公司 | 单向阀和过滤器 |
CN202397935U (zh) * | 2011-12-30 | 2012-08-29 | 北京谊安医疗系统股份有限公司 | 医用气控阀 |
CN202590121U (zh) * | 2011-12-30 | 2012-12-12 | 北京谊安医疗系统股份有限公司 | 旁通阀 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109297115A (zh) * | 2018-11-13 | 2019-02-01 | 成都昶艾电子科技有限公司 | 一种高原氧气弥散终端 |
Also Published As
Publication number | Publication date |
---|---|
EA201391161A1 (ru) | 2014-05-30 |
BR112013023220A2 (pt) | 2017-03-21 |
CN103182129A (zh) | 2013-07-03 |
US20140053929A1 (en) | 2014-02-27 |
EA025719B1 (ru) | 2017-01-30 |
US8967194B2 (en) | 2015-03-03 |
CN103182129B (zh) | 2015-12-09 |
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