GB2201098A - Anaesthetic gas scavenging system - Google Patents
Anaesthetic gas scavenging system Download PDFInfo
- Publication number
- GB2201098A GB2201098A GB08801424A GB8801424A GB2201098A GB 2201098 A GB2201098 A GB 2201098A GB 08801424 A GB08801424 A GB 08801424A GB 8801424 A GB8801424 A GB 8801424A GB 2201098 A GB2201098 A GB 2201098A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mask
- face
- exhaust
- gas
- anaesthetic
- 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.)
- Granted
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
- A61M16/0087—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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/84—General characteristics of the apparatus for treating several patients simultaneously
Abstract
An anaesthetic gas scavenging system for a recovery room 1 has one or more face-masks (6, Fig. 2), exhaust tubing coupling the or each face-mask to a gas withdrawal system 4 for exhausting exhaled gases outside the recovery room, and a gas inlet 5 for an oxygen supply to the or each face mask. <IMAGE>
Description
ANAESTHETIC GAS SCAVENGING. SYSTEM
The invention relates to an anaesthetic gas scavenging system. Such systems are known in operating theatres where it is important to exhaust anaesthetic gases outside the theatre, so that operating staff are not affected by accumulation of gases in the theatre. However, -problems can also arise in the recovery room, where patients are supervised in their recovery from the anaesthetic.
Patients breath out anaesthetic gases for some time after the operation and these can accumulate in the recovery room to the discomfort of the nursing staff.
An object of the invention is to provide a solution to the problem.
According to one aspect of the invention there is provided an anaesthetic gas scavenging system for a recovery room, the system including one or more facemasks, exhaust tubing coupling the or each face-mask to a gas withdrawal system for exhausting exhaled gases outside the recovery room, and a gas inlet for an oxygen supply to the or each face-mask.
Preferably there is a plurality of recovery bed positions and adjacent each is a pair of gas connection points, one connection point being for connecting with the exhaust tubing of the face-mask and the other connection point being for connecting with the oxygen inlet of the face-mask, the members of the pairs of gas connection points being connected respectively to an exhaust trunking system and to an oxygen supply trunking system.
According to another aspect of the invention there is provided a face-mask having an exhaust tube and a gas inlet tube for oxygen, which inlet tube is different from the exhaust tube.
The oxygen supply inlet to the mask can be by a tube which enters the mask at a place different from the exhaust tubing. However, a convenient arrangement is for the inlet tube to be supported within the exhaust tube.
The mask may have vents to allow air to be inhaled from the room, such vents being provided with valves to prevent exhaled gases being exhausted to the room.
The invention will further be described with reference to the accompanying drawings, of which:
Figure 1 is a schematic diagram of a system embodying the invention;
Figure 2 is a diagram of a face-mask of the system;
Figure 3 is a pair of diagrams showing the termination of the oxygen inlet tube in the exhaust tube; and
Figure 4 is a pair of diagrams showing a valve of the face-mask.
Referring to Figure 1 the system is for a recovery room 1 where there are a number of recovery beds 2 and each is provided with an adjacent wallfitting 3 to a gas scavenging trunking system 4. The system 4 has a suction fan which draws gases from the wall-fittings when they are in use. An oxygen supply trunking system 5 has oxygen outlets adjacent to each wall-fitting.
Referring now to Figure 2 each patient has a disposable plastics face-mask 6 which fits one end of an exhaust tube 7. The other end 8 of the tube fits the wall-fitting. At end 8 an oxygen inlet tube is fitted to the oxygen supply at 9. The inlet tube 10 passes along the inside of the exhaust tube 7 and terminates at the face-mask end. In this way oxygen is provided to the patient and exhaled gases are drawn by the scavenging unit along tube 7 and exhausted outside the recovery room. Two valved inlets 11 are provided to allow the patient to draw in air from the room.
Figure 3 shows the termination of the inlet tube 10 at the face-mask end ofwthe exhaust tube 7.
Figure 3(b) is a cross-sectionçat 'D-D' of Figure 3(a). A plastic spider 12 supports the end of the inlet tube co-axially in the exhaust tube.
Figure 4 shows the inlet valve arrangement for each of the inlets 11. A plastic circular flap 13 is supported at the middle. Figure 4(a) shows the valve closed by the patient exhaling. Figure-4(b) shows the valve opened by the patient inhaling. In this way air can be drawn in but anaesthetic gases are contained in the scavenging system.
Claims (8)
1. An anaesthetic gas scavenging system for a recovery room, the system including one or more facemasks, exhaust tubing coupling the or each face-mask to a gas withdrawal system for exhausting exhaled gases outside the recovery room, and a gas inlet for an oxygen supply to the or each face mask.
2. An anaesthetic gas scavenging exhaust system as claimed in claim 1 wherein there is a plurality of recovery bed positions and adjacent each is a pair of gas connection points, one connection point being for connecting with the exhaust tubing of the face-mask and the other connection point being for connecting with the oxygen inlet of the face-mask, the members of the pairs of gas connection points being connected respectively to an exhaust trunking system and to an oxygen supply trunking system.
3. An anaesthetic gas scavenging exhaust system as claimed in either of the preceding claims wherein, for each face-mask, the inlet tube is supported within the exhaust tube.
4. An anaesthetic gas scavenging exhaust system as claimed in any of the preceding claims wherein each face-mask has vents to allow air to be inhaled from the room, the vents being provided with valves to prevent exhaled gases being exhausted to the room.
5. A face-mask for a gas scavenging exhaust system as claimed in -any of the preceding claims, the face-mask having an exhaust tube and a gas inlet tube for oxygen, which inlet tube is different from the exhaust tube.
6. A face-mask as claimed in claim 5 wherein one or more vents to atmosphere are provided, the or each vent having a valve which allows air in but prevents exhaust gases from coming out.
7. An anaesthetic gas scavenging exhaust system substantially as hereinbefore described with reference to the accompanying drawings.
8. A face-mask for an anaesthetic exhaust system substantially as hereinbefore described with reference to Figures 2 to 4 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878701427A GB8701427D0 (en) | 1987-01-22 | 1987-01-22 | Anaesthetic gas scavenging system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8801424D0 GB8801424D0 (en) | 1988-02-24 |
| GB2201098A true GB2201098A (en) | 1988-08-24 |
| GB2201098B GB2201098B (en) | 1991-11-13 |
Family
ID=10611073
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB878701427A Pending GB8701427D0 (en) | 1987-01-22 | 1987-01-22 | Anaesthetic gas scavenging system |
| GB8801424A Expired - Lifetime GB2201098B (en) | 1987-01-22 | 1988-01-22 | Anaesthetic gas scavenging system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB878701427A Pending GB8701427D0 (en) | 1987-01-22 | 1987-01-22 | Anaesthetic gas scavenging system |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8701427D0 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002062413A3 (en) * | 2001-02-06 | 2002-11-28 | Heptec Gmbh | Anti-snoring device, method for reducing snoring and air glasses |
| EP1983251A3 (en) * | 2007-04-16 | 2011-02-23 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Wireless medical gases management system |
| EP2539049A1 (en) * | 2010-02-22 | 2013-01-02 | Class 1 Inc. | Apparatus, systems and methods for collecting and reclaiming anaesthetic agents and for removing nitrous oxide from exhaust gases |
| US9675774B2 (en) | 2009-04-02 | 2017-06-13 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles in free space |
| US9962512B2 (en) | 2009-04-02 | 2018-05-08 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with a free space nozzle feature |
| US10058668B2 (en) | 2007-05-18 | 2018-08-28 | Breathe Technologies, Inc. | Methods and devices for sensing respiration and providing ventilation therapy |
| US10099028B2 (en) | 2010-08-16 | 2018-10-16 | Breathe Technologies, Inc. | Methods, systems and devices using LOX to provide ventilatory support |
| US10252020B2 (en) | 2008-10-01 | 2019-04-09 | Breathe Technologies, Inc. | Ventilator with biofeedback monitoring and control for improving patient activity and health |
| US10265486B2 (en) | 2009-09-03 | 2019-04-23 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature |
| EP3669917A4 (en) * | 2017-10-20 | 2020-08-26 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd | Anesthesia machine exhaust emission control system, and control method therefor |
| US10792449B2 (en) | 2017-10-03 | 2020-10-06 | Breathe Technologies, Inc. | Patient interface with integrated jet pump |
| US11154672B2 (en) | 2009-09-03 | 2021-10-26 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7588033B2 (en) | 2003-06-18 | 2009-09-15 | Breathe Technologies, Inc. | Methods, systems and devices for improving ventilation in a lung area |
| EP1660004A4 (en) | 2003-08-18 | 2017-05-31 | Breathe Technologies, Inc. | Method and device for non-invasive ventilation with nasal interface |
| CA2623756A1 (en) | 2005-09-20 | 2007-03-29 | Lutz Freitag | Systems, methods and apparatus for respiratory support of a patient |
| WO2007142812A2 (en) | 2006-05-18 | 2007-12-13 | Breathe Technologies, Inc. | Tracheotomy method and device |
| WO2008019102A2 (en) | 2006-08-03 | 2008-02-14 | Breathe Technologies, Inc. | Methods and devices for minimally invasive respiratory support |
| JP5513392B2 (en) | 2007-09-26 | 2014-06-04 | ブリーズ・テクノロジーズ・インコーポレーテッド | Method and apparatus for treating sleep apnea |
| CA2700878C (en) | 2007-09-26 | 2018-07-24 | Breathe Technologies, Inc. | Methods and devices for providing inspiratory and expiratory flow relief during ventilation therapy |
| WO2009151791A2 (en) | 2008-04-18 | 2009-12-17 | Breathe Technologies, Inc. | Methods and devices for sensing respiration and controlling ventilator functions |
| US8770193B2 (en) | 2008-04-18 | 2014-07-08 | Breathe Technologies, Inc. | Methods and devices for sensing respiration and controlling ventilator functions |
| US8677999B2 (en) | 2008-08-22 | 2014-03-25 | Breathe Technologies, Inc. | Methods and devices for providing mechanical ventilation with an open airway interface |
| WO2012045051A1 (en) | 2010-09-30 | 2012-04-05 | Breathe Technologies, Inc. | Methods, systems and devices for humidifying a respiratory tract |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960148A (en) * | 1974-10-15 | 1976-06-01 | Dryden Gale E | Apparatus for high flow anesthesia |
| US4015598A (en) * | 1975-09-05 | 1977-04-05 | Brown Glenn E | Anaesthesic system |
| US4151843A (en) * | 1976-06-28 | 1979-05-01 | Brekke John H | Apparatus for administration of a gas to a human and the exhausting thereof |
| GB1579018A (en) * | 1978-04-06 | 1980-11-12 | Howorth Air Eng Ltd | Gas scavenging system |
| EP0181842A1 (en) * | 1984-10-04 | 1986-05-21 | LINDKVIST, Erik Allan | Gas collection device |
| GB2167671A (en) * | 1984-12-03 | 1986-06-04 | Basil Houldsworth | Anaesthetic apparatus and patient ventilators |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE454949B (en) * | 1986-09-24 | 1988-06-13 | Anders Mollstam | PATIENT OXYGEN MASK DEVICE |
-
1987
- 1987-01-22 GB GB878701427A patent/GB8701427D0/en active Pending
-
1988
- 1988-01-22 GB GB8801424A patent/GB2201098B/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960148A (en) * | 1974-10-15 | 1976-06-01 | Dryden Gale E | Apparatus for high flow anesthesia |
| US4015598A (en) * | 1975-09-05 | 1977-04-05 | Brown Glenn E | Anaesthesic system |
| US4151843A (en) * | 1976-06-28 | 1979-05-01 | Brekke John H | Apparatus for administration of a gas to a human and the exhausting thereof |
| GB1579018A (en) * | 1978-04-06 | 1980-11-12 | Howorth Air Eng Ltd | Gas scavenging system |
| EP0181842A1 (en) * | 1984-10-04 | 1986-05-21 | LINDKVIST, Erik Allan | Gas collection device |
| GB2167671A (en) * | 1984-12-03 | 1986-06-04 | Basil Houldsworth | Anaesthetic apparatus and patient ventilators |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10105383C2 (en) * | 2001-02-06 | 2003-06-05 | Heptec Gmbh | Anti-snoring device |
| WO2002062413A3 (en) * | 2001-02-06 | 2002-11-28 | Heptec Gmbh | Anti-snoring device, method for reducing snoring and air glasses |
| EP1983251A3 (en) * | 2007-04-16 | 2011-02-23 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Wireless medical gases management system |
| US8253577B2 (en) | 2007-04-16 | 2012-08-28 | American Air Liquide, Inc. | Wireless medical gases management system |
| US10058668B2 (en) | 2007-05-18 | 2018-08-28 | Breathe Technologies, Inc. | Methods and devices for sensing respiration and providing ventilation therapy |
| US10252020B2 (en) | 2008-10-01 | 2019-04-09 | Breathe Technologies, Inc. | Ventilator with biofeedback monitoring and control for improving patient activity and health |
| US10695519B2 (en) | 2009-04-02 | 2020-06-30 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles within nasal pillows |
| US11103667B2 (en) | 2009-04-02 | 2021-08-31 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive ventilation with gas delivery nozzles in free space |
| US9962512B2 (en) | 2009-04-02 | 2018-05-08 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with a free space nozzle feature |
| US10046133B2 (en) | 2009-04-02 | 2018-08-14 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive open ventilation for providing ventilation support |
| US11896766B2 (en) | 2009-04-02 | 2024-02-13 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive ventilation with gas delivery nozzles in free space |
| US11707591B2 (en) | 2009-04-02 | 2023-07-25 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles with an outer tube |
| US10232136B2 (en) | 2009-04-02 | 2019-03-19 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive open ventilation for treating airway obstructions |
| US9675774B2 (en) | 2009-04-02 | 2017-06-13 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles in free space |
| US10709864B2 (en) | 2009-04-02 | 2020-07-14 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles with an outer tube |
| US11154672B2 (en) | 2009-09-03 | 2021-10-26 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature |
| US10265486B2 (en) | 2009-09-03 | 2019-04-23 | Breathe Technologies, Inc. | Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature |
| EP2539049A1 (en) * | 2010-02-22 | 2013-01-02 | Class 1 Inc. | Apparatus, systems and methods for collecting and reclaiming anaesthetic agents and for removing nitrous oxide from exhaust gases |
| EP2539049A4 (en) * | 2010-02-22 | 2014-10-01 | Class 1 Inc | Apparatus, systems and methods for collecting and reclaiming anaesthetic agents and for removing nitrous oxide from exhaust gases |
| US9242065B2 (en) | 2010-02-22 | 2016-01-26 | Class 1 Inc. | Apparatus, systems and method for collecting and reclaiming anaesthetic agents and for removing nitrous oxide from exhaust gases |
| US10099028B2 (en) | 2010-08-16 | 2018-10-16 | Breathe Technologies, Inc. | Methods, systems and devices using LOX to provide ventilatory support |
| US10792449B2 (en) | 2017-10-03 | 2020-10-06 | Breathe Technologies, Inc. | Patient interface with integrated jet pump |
| EP3669917A4 (en) * | 2017-10-20 | 2020-08-26 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd | Anesthesia machine exhaust emission control system, and control method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8701427D0 (en) | 1987-02-25 |
| GB8801424D0 (en) | 1988-02-24 |
| GB2201098B (en) | 1991-11-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 20080121 |