US3724489A - Fractional inspiratory oxygen monitoring valve apparatus - Google Patents
Fractional inspiratory oxygen monitoring valve apparatus Download PDFInfo
- Publication number
- US3724489A US3724489A US3724489DA US3724489A US 3724489 A US3724489 A US 3724489A US 3724489D A US3724489D A US 3724489DA US 3724489 A US3724489 A US 3724489A
- Authority
- US
- United States
- Prior art keywords
- passage
- valve
- stem
- valve apparatus
- tubular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
- F16L47/32—Branch units, e.g. made in one piece, welded, riveted
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings
- F16L37/40—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings with a lift valve being opened automatically when the coupling is applied
-
- 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
- Y10T137/598—With repair, tapping, assembly, or disassembly means
- Y10T137/612—Tapping a pipe, keg, or apertured tank under pressure
- Y10T137/613—With valved closure or bung
- Y10T137/6137—Longitudinal movement of valve
Definitions
- ABSTRACT Cline Attorney-Hue", Blenko & Ziesenheim [57] ABSTRACT
- the specification discloses a fractional inspiratory oxygen monitoring valve apparatus, adapted for insertion in respiratory systems used in hospitals for administering oxygen to patients.
- the monitoring valve apparatus enables withdrawal of a sample of the oxygenated air stream to the patient for purposes of supply to the oxygen analyzer, and insures against leakage of oxygen from the system when the sampling withdrawal is terminated.
- the apparatus is simple in construction, of relatively low cost, and readily installable and operable by persons of minimal skill or special training.
- the monitoring valve apparatus is adapted to provide for cut off of the diverted sample supplied to the analyzer without danger of causing leakage from the system.
- the monitoring valve apparatus is of relatively simple construction and low cost and capable of use by persons who are relatively unskilled.
- Respirator 10 which for simplicity is shown in block form, comprises conventional equipment for supplying a controlled oxygenated air supply.
- the controlled air supply is conducted via a flexible hose 13 to a nebulizer 11 which functions to inject any additional element or elements, in vaporized form, into the air stream.
- the monitoring valve apparatus 14 which I provide is desirably interposed at this point in the system between the output of the nebulizer and a flexible hose 15 connected to the input of exhalation valve 12.
- the monitoring valve apparatus which l provide is essentially a fitting of T-shape readily insertable in existing respiratory systems and having a normally closed valve in the stem portion of the fitting.
- a hollow stem is insertable in the stern portion of the fitting to unseat the valve and bleed ofi a sample of controlled air supply to an analyzer. Removal of the hollow stem automatically returns the valve in the valve stem to closed position.
- FIG. 1 is a simplified diagrammatic view of a respiratory system, illustrative of those used in hospitals, embodying my novel monitoring valve apparatus, and
- FIG. 2 is an enlarged elevational view, mainly in section, showing details of my monitoring valve apparatus, and in which the valve activating stemportion is shown separated from the valve body itself.
- the illustrative respiratory system shown therein comprises a respirator 10, a nebulizer 11, and an exhalation valve 12.
- the monitoring valve apparatus 14 shown is essentially a T-fitting in three parts, namely a body portion 18, a connection portion 19, and a valve activating stem 20, shown separated from the body portion.
- the body portion is cylindrical in form and has a central longitudinal through passage 21.
- the body portion has an external circumferential rib 22 of enlarged diameter, the rib having a radial hole therein opening into the passage 21.
- a hollow tubular sleeve 23 is suitably cemented in the radial hole and extends substantially at a right-angle to thebody portion.
- Sleeve 23 has a through bore 24 which is tapped to receive the body of a valve 25.
- Valve 25 is similar to the type of valve in an automotive tire valve stem. It is normally biased to a seated, or closed position blocking escape of air or gas from the passage 21 but is unseated, that is opened, by pressure applied inwardly on a valve stem 26.
- Valve activating stem 20 is a tubular element, having a central portion 27 of uniform diameter and oppositely extending circularly tapered end portions 28 and 29.
- a through bore or passage 30 extends longitudinally through the stem 20 from the outer extremity of tapered portion 29, through the central portion 27 and through the tapered portion 28 up to a point near the extremity thereof.
- the blocked end of the passage 30 provides a seat for engaging the end of valve stem 26 upon insertion of the valve activating stem 20 into the outer end of the tapped bore 24 in sleeve 23.
- the end portion 28 of the stem 20 is so tapered that the blocked end of the stern engages the valve stem 26 and holds the valve 25 unseated concurrently with engagement of the tapered end portion with the rim of the bore 24 in sleeve 23.
- valve activating stem 20 For the purpose of allowing flow of air orgas from the passage 21 into the passage 30 in the valve activating stem 20, while the stem is frictionally held in sleeve 23, the end of the tapered portion 28, is provided with diametrically located flats 31 and a transverse bore or hole 32 through the flats 31 intersecting the passage 30.
- the end portion 29 of valve activating stem 20 is circuthereon, which, as shown in FIG. 1., leads to a so-called oxygen (0,) analyzer 34. in hose 33 is interposed a resilient bulb 35 and a dryer unit 36.
- the body portion 18, the sleeve 23 and the valve activating stem 20 are preferably of the same material, which may be any suitable clear, transparent and relatively hard plastic material.
- the slightly tapered end of the body portion 18 is of suitable diameter to engage sealingly in the end bore of hose 15 when pressed therein.
- the connecting portion 19 is a sleeve of flexible resilient material having an interior sealing rib 37. at one end which expands over the cylindrical end of the body portion 18 and engages in a corresponding external groove 38 in the body portion 18 and a second interior sealing rib 39 which engages the end face of the body portion 18.
- the sleeve tapers externally in diameter away from the body portion and has an internal sealing rib 40. As shown in FIG. 1, the tapered end of the connecting portion 19 thus sealingly expands over a projecting fitting (not shown) in the nebulizer 11, or any other device correspondingly located.
- the monitoring valve apparatus 14 is installed in a respiratory system, such as shown in FIG. 1, as previously described, and that the valve activating stem 20 is not connected to the sleeve 23. In such case, of course, the valve is closed and the controlled air supply flows from the respirator l0 and through passage 21 of the monitoring valve apparatus l4, tube 15, exhalation valve 12, and tube 16 to the patient.
- the operator In order to obtain a sample of the controlled air being supplied to the. patient and without interrupting the supply to the patient, for supply to the analyzer 34, the operator simply inserts the end portion 28 of the activating stem 20 into the sleeve 23 of the body portion 18 with a slight twisting motion to thus frictionally hold the stem 20 in the sleeve 23.
- Valve stem 26 is thus engaged by the extremity of the tapered end portion 28 of the stem 20 and pressed in so as to hold valve 25 unseated. Controlled air under pressure is thus allowed to flow from passage 21 past the valve 25 and into the passage 30 of the stem 20, whence it continues via hose 33, the bulb and dryer 36 to the analyzer 34.
- bulb 35 is not required, as it has been in heretofore known practice, for pressurizing the sample to supply it to the analyzer. However, it may serve a useful purpose, as when calibrating the analyzer.
- termination of the supply to the analyzer may be effected readily and quickly by simply removing the valve activating stem 20 from the sleeve 23. Upon removal of the stem 20, pressure on the valve stem 26 is automatically removed and the valve 25 is thus restored to its seated or closed position, sealing the bore 24 against leakage of controlled air from the passage 21.
- the monitoring valve apparatus which I have provided may be readily installed and operated by personnel with minimal training or skill. Moreover, the possibility of leakage of controlled air under pressure from the respiratory system is avoided because of the tight closure of valve 25. Also, the non-metallic character of the apparatus is a safety factor, as it avoids possible sparks due to clash of metal parts a dangerous situation where oxygen or traces thereof may be present in the ambient atmosphere.
- Monitoring valve apparatus for use in respiratory systems and the like, comprising a tubular body member having a through passage adapted for connection in a communication through which a controlled gas is delivered to a patient, a tubular sleeve member generally radially on said body member having a branch passage opening out of said through passage, a
- a tu-' bular activating stem insertable in the open end of said branch passage having means for opening said valve to bleed controlled gas under pressure from said through passage through said activating stern for a desired purpose, one of said sleeve and stem being of resilient plastic dimensioned to resiliently interfit and engage the other in frictionally held sealing relationship upon a predetermined amount of engagement.
- valve has a valve stem projecting outwardly of said branch passage and engaged by the inner end of said activating stem, when inserted inwardly from the outer end of said branch passage, to effect unseating of said valve.
- said activating stem has a tapered end portion frictionally held in the outer end of said branch passage upon a predetermined amount of insertion thereinto, in which position the inner end of said activating stem engages said valve stem to hold said valve unseated.
- one end of said tubular body portion is circularly tapered toward the outer end thereof to sealingly engage in the end bore of a hose.
- monitoring valve apparatus wherein the end of said tubular body portion opposite said one end is cylindrical and has in spaced relation to the outer end of said cylindrical end an external peripheral groove, and wherein a tubular connecting member of resilient material is provided having at one end an interior sealing rib which is expandible over said cylindrical end for engagement in said peripheral groove and having at its opposite end an expandible interior sealing rib for connection to another member in said system.
- said activating stem has a longitudinal passage therein and a transverse passage therethrough intersecting said longitudinal passage, through which controlled gas under pressure is bled from said through passage in said fitting when said valve is unseated by said activating stem.
- Monitoring valve apparatus for use in respiratory systems and the like, comprising a fitting having a through passage adapted for connection in a communication through which a controlled gas is delivered to a patient, a branch passage opening out of said through passage, and a normally closed valve in said branch passage; and a tubular activating stem insertable in the open end of said branch passage for opening said valve to bleed controlled gas under pressure from said through passage through said activating stern for a desired purpose, said fitting comprising a tubular body portion containing said through passage, a transverse opening through the wall of said tubular portion, and a sleeve sealingly secured in said opening and providing said branch passage, wherein the end of said tubular body portion opposite said one end is cylindrical and 0
Abstract
The specification discloses a fractional inspiratory oxygen monitoring valve apparatus, adapted for insertion in respiratory systems used in hospitals for administering oxygen to patients. The monitoring valve apparatus enables withdrawal of a sample of the oxygenated air stream to the patient for purposes of supply to the oxygen analyzer, and insures against leakage of oxygen from the system when the sampling withdrawal is terminated. The apparatus is simple in construction, of relatively low cost, and readily installable and operable by persons of minimal skill or special training.
Description
United States Patent [1 1 Eross 1 Apr. 3, 1973 [54] FRACTIONAL INSPIRATORY OXYGEN 'MONITORING VALVE APPARATUS [75] Inventor: Bela Eross, Penn Hills Township,
Allegheny County, Pa.
[73] Assignee: Instrumentation Industries, luc.,
Pittsburgh, Pa.
221 Filed: May2l,197l 21 Appl.No.: 145,802
52 Us. 01. ..137/322, 251 149.7, 285/156, 128/274 51 Int. Cl. ..F16l37/28, F161 47/00 [58] Field of Search .1 ..25l/149.6, 149.7; 137/561, 137/320, 317,322, 230, 231; 73/420; '285/156, 238, 240, 332; 128/140, 247, 274
[5 6] References Cited UNITED STATES PATENTS 2,538,662 1/1951' Abbott ..285/332 X 3,472,531 10/1969 Evesque ..285l238 X 3,566,696 3/1971 Maddison et a1. ..73/420 3,381,982 5/1968 Elek ..285/l56 FOREIGN PATENTS OR APPLICATIONS 978,107 12/1964 GreatBritain ..137/322 Primary Examiner-William R. Cline Attorney-Hue", Blenko & Ziesenheim [57] ABSTRACT The specification discloses a fractional inspiratory oxygen monitoring valve apparatus, adapted for insertion in respiratory systems used in hospitals for administering oxygen to patients. The monitoring valve apparatus enables withdrawal of a sample of the oxygenated air stream to the patient for purposes of supply to the oxygen analyzer, and insures against leakage of oxygen from the system when the sampling withdrawal is terminated. The apparatus is simple in construction, of relatively low cost, and readily installable and operable by persons of minimal skill or special training.
7 Claims, 2 Drawing Figures mhmluuluu ll l mvzmon Bela Eross FRACTIONAL INSPIRATORY OXYGEN MONITORING VALVE APPARATUS This invention relates to monitoring valve apparatus propriateness of the oxygen content and other factors in the air supplied to the patient.
' In the administration of a controlled air supply from a respirator to a patient, it is highly important that the appropriate oxygen and other factors be monitored quickly and readily without elaborate equipment and without the necessity for utilizing highly skilled personnel. It has heretofore been necessary to employ technicians of considerable experience and skill to obtain a sample of the controlled air supply to the patient for delivery to the analyzer. In order to withdraw a supply of the controlled air being supplied to the patient, it has been the practice to inject a needle, similar to a hypodermic needle, into oneof the flexible hose connections through which the air stream to the patient flows and by means of a resilient bulb induce a vacuum on the needle for purposes of withdrawing a sample of the controlled air and then, inturn, delivering the sample so withdrawn to the analyzer by compression of the bulb.
This type of operation is relatively slow and tedious and requires skilled personnel. Moreover, leakage of controlled air from the flexible hose is likely to occur upon withdrawal of the needle. g
I propose to provide a monitoring valve apparatus by which a sample supplyfrom the stream of controlled air to the patient may be diverted directly to the analyzer under the pressure existing in the system and without the necessity for utilizing a bulb to pressurize the sample withdrawn. Moreover, the monitoring valve apparatus is adapted to provide for cut off of the diverted sample supplied to the analyzer without danger of causing leakage from the system. Also, the monitoring valve apparatus is of relatively simple construction and low cost and capable of use by persons who are relatively unskilled.
Details of the monitoring valve apparatus constituting my invention will be described hereinafter'in connection with the accompanying drawings, wherein:
FIG. 1 is a simplified diagrammatic view of a respiratory system, illustrative of those used in hospitals, embodying my novel monitoring valve apparatus, and
FIG. 2 is an enlarged elevational view, mainly in section, showing details of my monitoring valve apparatus, and in which the valve activating stemportion is shown separated from the valve body itself.
Referring to FIG. 1 of the drawings, the illustrative respiratory system shown therein comprises a respirator 10, a nebulizer 11, and an exhalation valve 12.
fice to understand that the controlled air supply flows through the body of the monitoring valve apparatus and thence via the exhalation valve and a flexible hose 16 to the patient. Air exhaled by the patient is blocked against back flow and diverted to the atmosphere via an exhaust or exhalation port 17.
Referring now to FIG. 2, the monitoring valve apparatus 14 shown is essentially a T-fitting in three parts, namely a body portion 18, a connection portion 19, and a valve activating stem 20, shown separated from the body portion.
The body portion is cylindrical in form and has a central longitudinal through passage 21. The body portion has an external circumferential rib 22 of enlarged diameter, the rib having a radial hole therein opening into the passage 21. A hollow tubular sleeve 23 is suitably cemented in the radial hole and extends substantially at a right-angle to thebody portion. Sleeve 23 has a through bore 24 which is tapped to receive the body of a valve 25. Valve 25 is similar to the type of valve in an automotive tire valve stem. It is normally biased to a seated, or closed position blocking escape of air or gas from the passage 21 but is unseated, that is opened, by pressure applied inwardly on a valve stem 26. i
. Valve activating stem 20 is a tubular element, having a central portion 27 of uniform diameter and oppositely extending circularly tapered end portions 28 and 29. A through bore or passage 30 extends longitudinally through the stem 20 from the outer extremity of tapered portion 29, through the central portion 27 and through the tapered portion 28 up to a point near the extremity thereof. The blocked end of the passage 30 provides a seat for engaging the end of valve stem 26 upon insertion of the valve activating stem 20 into the outer end of the tapped bore 24 in sleeve 23. The end portion 28 of the stem 20 is so tapered that the blocked end of the stern engages the valve stem 26 and holds the valve 25 unseated concurrently with engagement of the tapered end portion with the rim of the bore 24 in sleeve 23. By exerting a slight pressure on the stem 20, friction will hold stem 20 within the sleeve 23 in a position to hold the valve 25 unseated. Moreover, with a slight twisting pull the stem 20 may be readily removed from the sleeve 23. i
For the purpose of allowing flow of air orgas from the passage 21 into the passage 30 in the valve activating stem 20, while the stem is frictionally held in sleeve 23, the end of the tapered portion 28, is provided with diametrically located flats 31 and a transverse bore or hole 32 through the flats 31 intersecting the passage 30. The end portion 29 of valve activating stem 20 is circuthereon, which, as shown in FIG. 1., leads to a so-called oxygen (0,) analyzer 34. in hose 33 is interposed a resilient bulb 35 and a dryer unit 36.
The body portion 18, the sleeve 23 and the valve activating stem 20 are preferably of the same material, which may be any suitable clear, transparent and relatively hard plastic material. The slightly tapered end of the body portion 18 is of suitable diameter to engage sealingly in the end bore of hose 15 when pressed therein.
The connecting portion 19 is a sleeve of flexible resilient material having an interior sealing rib 37. at one end which expands over the cylindrical end of the body portion 18 and engages in a corresponding external groove 38 in the body portion 18 and a second interior sealing rib 39 which engages the end face of the body portion 18. The sleeve tapers externally in diameter away from the body portion and has an internal sealing rib 40. As shown in FIG. 1, the tapered end of the connecting portion 19 thus sealingly expands over a projecting fitting (not shown) in the nebulizer 11, or any other device correspondingly located.
In operation, let it be assumed that the monitoring valve apparatus 14 is installed in a respiratory system, such as shown in FIG. 1, as previously described, and that the valve activating stem 20 is not connected to the sleeve 23. In such case, of course, the valve is closed and the controlled air supply flows from the respirator l0 and through passage 21 of the monitoring valve apparatus l4, tube 15, exhalation valve 12, and tube 16 to the patient.
In order to obtain a sample of the controlled air being supplied to the. patient and without interrupting the supply to the patient, for supply to the analyzer 34, the operator simply inserts the end portion 28 of the activating stem 20 into the sleeve 23 of the body portion 18 with a slight twisting motion to thus frictionally hold the stem 20 in the sleeve 23.
Valve stem 26 is thus engaged by the extremity of the tapered end portion 28 of the stem 20 and pressed in so as to hold valve 25 unseated. Controlled air under pressure is thus allowed to flow from passage 21 past the valve 25 and into the passage 30 of the stem 20, whence it continues via hose 33, the bulb and dryer 36 to the analyzer 34. It should be understood that bulb 35 is not required, as it has been in heretofore known practice, for pressurizing the sample to supply it to the analyzer. However, it may serve a useful purpose, as when calibrating the analyzer.
When the period of sample withdrawal has been completed, termination of the supply to the analyzer may be effected readily and quickly by simply removing the valve activating stem 20 from the sleeve 23. Upon removal of the stem 20, pressure on the valve stem 26 is automatically removed and the valve 25 is thus restored to its seated or closed position, sealing the bore 24 against leakage of controlled air from the passage 21.
It will thus be seen that the monitoring valve apparatus which I have provided may be readily installed and operated by personnel with minimal training or skill. Moreover, the possibility of leakage of controlled air under pressure from the respiratory system is avoided because of the tight closure of valve 25. Also, the non-metallic character of the apparatus is a safety factor, as it avoids possible sparks due to clash of metal parts a dangerous situation where oxygen or traces thereof may be present in the ambient atmosphere.
While a specific embodiment of the monitoring valve apparatus has been shown and a particular use thereof described, it should be apparent that variations in the apparatus and its use are possible within the scope of the appended claims.
I claim:
1. Monitoring valve apparatus for use in respiratory systems and the like, comprising a tubular body member having a through passage adapted for connection in a communication through which a controlled gas is delivered to a patient, a tubular sleeve member generally radially on said body member having a branch passage opening out of said through passage, a
normally closed valve in said branch passage; and a tu-' bular activating stem insertable in the open end of said branch passage having means for opening said valve to bleed controlled gas under pressure from said through passage through said activating stern for a desired purpose, one of said sleeve and stem being of resilient plastic dimensioned to resiliently interfit and engage the other in frictionally held sealing relationship upon a predetermined amount of engagement.
2. Monitoring valve apparatus according to claim 1, wherein said valve has a valve stem projecting outwardly of said branch passage and engaged by the inner end of said activating stem, when inserted inwardly from the outer end of said branch passage, to effect unseating of said valve.
3. Monitoring valve apparatus according to claim 2, wherein said activating stem has a tapered end portion frictionally held in the outer end of said branch passage upon a predetermined amount of insertion thereinto, in which position the inner end of said activating stem engages said valve stem to hold said valve unseated.
4. Monitoring valve apparatus according to claim 1, wherein one end of said tubular body portion is circularly tapered toward the outer end thereof to sealingly engage in the end bore of a hose.
5. Monitoring valve apparatus according to claim 1, wherein the end of said tubular body portion opposite said one end is cylindrical and has in spaced relation to the outer end of said cylindrical end an external peripheral groove, and wherein a tubular connecting member of resilient material is provided having at one end an interior sealing rib which is expandible over said cylindrical end for engagement in said peripheral groove and having at its opposite end an expandible interior sealing rib for connection to another member in said system.
6. Monitoring valve'apparatus according to claim 1, wherein said activating stem has a longitudinal passage therein and a transverse passage therethrough intersecting said longitudinal passage, through which controlled gas under pressure is bled from said through passage in said fitting when said valve is unseated by said activating stem.
7. Monitoring valve apparatus for use in respiratory systems and the like, comprising a fitting having a through passage adapted for connection in a communication through which a controlled gas is delivered to a patient, a branch passage opening out of said through passage, and a normally closed valve in said branch passage; and a tubular activating stem insertable in the open end of said branch passage for opening said valve to bleed controlled gas under pressure from said through passage through said activating stern for a desired purpose, said fitting comprising a tubular body portion containing said through passage, a transverse opening through the wall of said tubular portion, and a sleeve sealingly secured in said opening and providing said branch passage, wherein the end of said tubular body portion opposite said one end is cylindrical and 0
Claims (7)
1. Monitoring valve apparatus for use in respiratory systems and the like, comprising a tubular body member having a through passage adapted for connection in a communication through which a controlled gas is delivered to a patient, a tubular sleeve member Generally radially on said body member having a branch passage opening out of said through passage, a normally closed valve in said branch passage; and a tubular activating stem insertable in the open end of said branch passage having means for opening said valve to bleed controlled gas under pressure from said through passage through said activating stem for a desired purpose, one of said sleeve and stem being of resilient plastic dimensioned to resiliently interfit and engage the other in frictionally held sealing relationship upon a predetermined amount of engagement.
2. Monitoring valve apparatus according to claim 1, wherein said valve has a valve stem projecting outwardly of said branch passage and engaged by the inner end of said activating stem, when inserted inwardly from the outer end of said branch passage, to effect unseating of said valve.
3. Monitoring valve apparatus according to claim 2, wherein said activating stem has a tapered end portion frictionally held in the outer end of said branch passage upon a predetermined amount of insertion thereinto, in which position the inner end of said activating stem engages said valve stem to hold said valve unseated.
4. Monitoring valve apparatus according to claim 1, wherein one end of said tubular body portion is circularly tapered toward the outer end thereof to sealingly engage in the end bore of a hose.
5. Monitoring valve apparatus according to claim 1, wherein the end of said tubular body portion opposite said one end is cylindrical and has in spaced relation to the outer end of said cylindrical end an external peripheral groove, and wherein a tubular connecting member of resilient material is provided having at one end an interior sealing rib which is expandible over said cylindrical end for engagement in said peripheral groove and having at its opposite end an expandible interior sealing rib for connection to another member in said system.
6. Monitoring valve apparatus according to claim 1, wherein said activating stem has a longitudinal passage therein and a transverse passage therethrough intersecting said longitudinal passage, through which controlled gas under pressure is bled from said through passage in said fitting when said valve is unseated by said activating stem.
7. Monitoring valve apparatus for use in respiratory systems and the like, comprising a fitting having a through passage adapted for connection in a communication through which a controlled gas is delivered to a patient, a branch passage opening out of said through passage, and a normally closed valve in said branch passage; and a tubular activating stem insertable in the open end of said branch passage for opening said valve to bleed controlled gas under pressure from said through passage through said activating stem for a desired purpose, said fitting comprising a tubular body portion containing said through passage, a transverse opening through the wall of said tubular portion, and a sleeve sealingly secured in said opening and providing said branch passage, wherein the end of said tubular body portion opposite said one end is cylindrical and has in spaced relation to the outer end of said end portion an external peripheral groove, and wherein a tubular connecting member of resilient material is provided with a pair of axially spaced interior sealing ribs, one of which is expandible over the cylindrical end of said tubular body portion to engage in said peripheral groove and the other of which sealingly engages the outer end face of said cylindrical end of the tubular body portion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14580271A | 1971-05-21 | 1971-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3724489A true US3724489A (en) | 1973-04-03 |
Family
ID=22514620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US3724489D Expired - Lifetime US3724489A (en) | 1971-05-21 | 1971-05-21 | Fractional inspiratory oxygen monitoring valve apparatus |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3724489A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193419A (en) * | 1978-04-04 | 1980-03-18 | Alex Pellerito | Connector apparatus for pressurized lines |
| FR2452653A1 (en) * | 1979-03-26 | 1980-10-24 | Carrion Gerard | Straight or branched tubes with semi-rigid accordion mid-section - used to provide junctions or terminals for tubes for e.g. medical infusion, foodstuff dispensers and aquarium fittings |
| US4951661A (en) * | 1988-06-08 | 1990-08-28 | Thayer Medical Corporation | Quick-connect adapter valve for connecting nebulizer and fluid ventilator hose |
| US5295719A (en) * | 1990-06-08 | 1994-03-22 | Fabbrica Italiana Serrature Torino S.P.A. | Connection assembly for vehicle engine coolant circuits |
| US6725858B2 (en) | 2001-05-07 | 2004-04-27 | Hudson Respiratory Care Inc. | Valved aerosol tee adapter assembly |
| US20050109133A1 (en) * | 2003-11-13 | 2005-05-26 | John Lamb | Adaptor means |
| US20050149231A1 (en) * | 2004-01-05 | 2005-07-07 | John Pretlove | Method and a system for programming an industrial robot |
| US20110114091A1 (en) * | 2009-11-16 | 2011-05-19 | Galemed Corporation | Tee connector for supplying aerosol |
| US20140124050A1 (en) * | 2011-06-20 | 2014-05-08 | Graco Minnesota Inc. | Pour spout adapter assembly for pumping system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2538662A (en) * | 1950-01-24 | 1951-01-16 | Charles C Abbott | Expendable valve unit for surgical appliances |
| GB978107A (en) * | 1963-01-31 | 1964-12-16 | Hermann Halbach | Improvements in or relating to pipe connections |
| US3381982A (en) * | 1966-06-06 | 1968-05-07 | Armstrong Plastic Specialties | Plastic fitting assembly |
| US3472531A (en) * | 1967-08-08 | 1969-10-14 | Pittsburgh Railways Co | Eccentric connecting means between a dip tube and an aerosol valve |
| US3566696A (en) * | 1968-12-24 | 1971-03-02 | William D Maddison | Valve stem |
-
1971
- 1971-05-21 US US3724489D patent/US3724489A/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2538662A (en) * | 1950-01-24 | 1951-01-16 | Charles C Abbott | Expendable valve unit for surgical appliances |
| GB978107A (en) * | 1963-01-31 | 1964-12-16 | Hermann Halbach | Improvements in or relating to pipe connections |
| US3381982A (en) * | 1966-06-06 | 1968-05-07 | Armstrong Plastic Specialties | Plastic fitting assembly |
| US3472531A (en) * | 1967-08-08 | 1969-10-14 | Pittsburgh Railways Co | Eccentric connecting means between a dip tube and an aerosol valve |
| US3566696A (en) * | 1968-12-24 | 1971-03-02 | William D Maddison | Valve stem |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193419A (en) * | 1978-04-04 | 1980-03-18 | Alex Pellerito | Connector apparatus for pressurized lines |
| FR2452653A1 (en) * | 1979-03-26 | 1980-10-24 | Carrion Gerard | Straight or branched tubes with semi-rigid accordion mid-section - used to provide junctions or terminals for tubes for e.g. medical infusion, foodstuff dispensers and aquarium fittings |
| US4951661A (en) * | 1988-06-08 | 1990-08-28 | Thayer Medical Corporation | Quick-connect adapter valve for connecting nebulizer and fluid ventilator hose |
| US5295719A (en) * | 1990-06-08 | 1994-03-22 | Fabbrica Italiana Serrature Torino S.P.A. | Connection assembly for vehicle engine coolant circuits |
| US6725858B2 (en) | 2001-05-07 | 2004-04-27 | Hudson Respiratory Care Inc. | Valved aerosol tee adapter assembly |
| US20050109133A1 (en) * | 2003-11-13 | 2005-05-26 | John Lamb | Adaptor means |
| US20050149231A1 (en) * | 2004-01-05 | 2005-07-07 | John Pretlove | Method and a system for programming an industrial robot |
| US20110114091A1 (en) * | 2009-11-16 | 2011-05-19 | Galemed Corporation | Tee connector for supplying aerosol |
| US20140124050A1 (en) * | 2011-06-20 | 2014-05-08 | Graco Minnesota Inc. | Pour spout adapter assembly for pumping system |
| US9810361B2 (en) * | 2011-06-20 | 2017-11-07 | Graco Minnesota Inc. | Pour spout adapter assembly for pumping system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3502097A (en) | Catheter-infuser connector | |
| US3262446A (en) | Resuscitator | |
| US3724489A (en) | Fractional inspiratory oxygen monitoring valve apparatus | |
| US4456014A (en) | Flow restrictor | |
| US3322126A (en) | Endotracheal catheter | |
| US2693801A (en) | Safety cutoff valve for liquid administering apparatus | |
| US4495946A (en) | Artificial breathing device | |
| US4416273A (en) | Connector valve assembly for endotracheal tubes | |
| US3794043A (en) | Endotracheal tube with inflatable cuff and check valve | |
| US4827921A (en) | Connecting system for gas lines for respirator or anesthesia apparatus having pluggable connecting elements | |
| US4045058A (en) | Slip-proof coupling device | |
| US4202330A (en) | Life support system and valve for use therewith | |
| US20030018308A1 (en) | Drug-adding tube of infusion set | |
| US4484769A (en) | Non-rigid universal coupling for health related equipment | |
| GB1154950A (en) | Improvements in or relating to Double-Lumen Balloon Catheters | |
| EP2879747B1 (en) | Firesafe coupling | |
| DE102007063556A1 (en) | Breathing device for use as e.g. tracheostoma device, has hose coupling for respiratory gas tube, and receiver arranged for pressure measuring connection and/or oxygen connection in region of hose coupling | |
| US9067038B2 (en) | Valve system for use with a flexible gas supply tube extending to a patient | |
| US4098290A (en) | Miniature intermittent positive pressure breathing valve | |
| US3060927A (en) | Means for administering oxygen during resuscitation | |
| US4407281A (en) | Intratracheal tube | |
| US4741331A (en) | Disposable radioactive aerosol inhalation apparatus | |
| US3953060A (en) | Slip-proof coupling device | |
| US2483698A (en) | Resuscitator | |
| US10982773B2 (en) | Gas concentrator apparatus and method of use thereof |