GB2245836A - Adjustable respiratory valve - Google Patents
Adjustable respiratory valve Download PDFInfo
- Publication number
- GB2245836A GB2245836A GB9110910A GB9110910A GB2245836A GB 2245836 A GB2245836 A GB 2245836A GB 9110910 A GB9110910 A GB 9110910A GB 9110910 A GB9110910 A GB 9110910A GB 2245836 A GB2245836 A GB 2245836A
- Authority
- GB
- United Kingdom
- Prior art keywords
- respiratory
- breathing device
- valve
- thumb
- plunger
- 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.)
- Withdrawn
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
- A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
- A61M16/209—Relief valves
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
A hand operated dual-function valve for applying intermittent positive pressure ventilation to patients requiring resuscitation or hyper-inflation of the lungs during physiotherapy treatment comprises a valve body (1) which is held in one hand, with the thumb of the same hand operating a spring loaded plunger (3). Adjustment for resistance of outflow of expiratory gases is obtained by screwing expiratory flow adjuster (2) in or out to change the bias of spring (7). Hyper-inflation of the lungs can be held by depressing the plunger with the thumb to seat the valve head (6). <IMAGE>
Description
RESPIRATORY RE-BREA < HING DUAL-FUNCTION VALVE
This invention relates to improvements in device for applying
I.P.P.V. to patients requiring resuscitation or hyperinflation of the lungs during physiotherapy treatment.
For the operators of these valves, positive feel and smooth efficient operation is imperative to apply safe I.P.P.V. to patients. The construction of a previous device - (DF655), lacked simplicity in design causing alignment problems and sticking, due to warping of materials during sterilizing procedures. It was possible for certain components to come completely adrift from their locations during use, resulting in the danger of patient inhaling fragments of plastic or a metal pin or both. The complete inner valve assembly had been known to unscrew and drop out during use. It was possible for staff to mistakenly loosen a locking ring thinking it was for adjustment purposes so allowing it to work loose and thus fall out - extremely hazardous if during resuscitation and uncomfortable at the least for a conscious, intubated patient.
Another previous proposal acted solely as an expiratory resistor with threaded adjustment for spring tension on the valve, but no provision for holding inflation of the lungs, needed for physiotherapy application and complete expulsion of
C02 from the patient, thus a tee piece has to be introduced into the circuit, increasing the cost factor and also increasing the risk of cross infection.
These problems are overcome by the present invention -which provides smooth, safe operation with low maintenance and dual function for physiotherapy and resuscitation applications.
To assist with understanding the invention, reference will now be made to the accompanying parts list and drawings.
In the drawings:
Fig. 1 Shows a sectional view of the device according to
this invention;
Fig. 2 Shows the respiratory dual function valve held by
the operator.
Assembly consists of:
1. valve body (existing or modified).
Inner
Valve
Assembly
2. Expiratory flow adjuster (threaded).
3. Inspiratory hold/release plunger (thumb operated).
4. Spring.
5. Retaining ring.
6. Nylon disc valve and stem.
7. Spring.
8. Screw.
9. Screw.
Parts 2 to 7 are all concentric to each other.
This valve has a minimum number of parts allowing ease of operation.
It consists of: 1. The valve body to take the inner valve assembly:- parts as
follows 2 to 9.
2. The expiratory flow adjuster (threaded) whicn can be screwed
in or out with two fingers to adjust expiratory flow restrIctIon (metal).
3. The respiratory hold/reiease plunger (thumb operated) wncr comes into contact with the stem of the disc valve and is
spring loaded (plastic).
4. Heavier spring for thumb operated plunger.
5. Retaining ring (metal).
6. Nylon disc. valve and stem (-very light but strong).
7. Spring - light action (rust proof).
8. Retaining screw.
9. Retaining screw.
Claims (4)
1. A respiratory re-breathing device comprising a metal or
plastic valve body, housing an inner valve assembly
adapted to incorporate a thumb operated plunger, allowing
adjustment of expiratory flow resistance independently
from the action of the thumb operated plunger.
2. The respiratory re-breathing device of claim 1. wherein
the construction and materials used does significantly
reduce the risk of patient inhalation of broken or faulty
fragments of metal or plastics, and any probability of
the inner valve being totally unscrewed and falling apart
during use.
3. The respiratory re-breathing device of claims 1. and
2. wherein the need for a TEE piece to be introduced into
the circuit for physiotherapy application is eliminated,
thus reducing the cost factor associated with TEE piece.
It may also reduce the risk of cross infection, and
allows for the complete expulsion of carbon dioxide from
the patient.
4. A respiratory re-breathing device substantially as herein
described with reference to the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPK025690 | 1990-05-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9110910D0 GB9110910D0 (en) | 1991-07-10 |
GB2245836A true GB2245836A (en) | 1992-01-15 |
Family
ID=3774701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9110910A Withdrawn GB2245836A (en) | 1990-05-24 | 1991-05-21 | Adjustable respiratory valve |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2245836A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2844328A1 (en) * | 2002-09-05 | 2004-03-12 | Draeger Medical Ag | Pressure relief valve used in e.g. breathing gas line of anesthesia apparatus, has teeth provided in hand wheel and threaded sleeve, such that rotary movement and lifting movement can be performed between hand wheel and threaded sleeve |
WO2007035093A2 (en) * | 2005-09-26 | 2007-03-29 | Think! Global B.V. | Administering and evacuation system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2079162A (en) * | 1980-07-04 | 1982-01-20 | Commw Ind Gases | Resuscitator valve assembly |
GB2145336A (en) * | 1983-08-18 | 1985-03-27 | Automated Process & Control | Expiratory valve |
-
1991
- 1991-05-21 GB GB9110910A patent/GB2245836A/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2079162A (en) * | 1980-07-04 | 1982-01-20 | Commw Ind Gases | Resuscitator valve assembly |
GB2145336A (en) * | 1983-08-18 | 1985-03-27 | Automated Process & Control | Expiratory valve |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2844328A1 (en) * | 2002-09-05 | 2004-03-12 | Draeger Medical Ag | Pressure relief valve used in e.g. breathing gas line of anesthesia apparatus, has teeth provided in hand wheel and threaded sleeve, such that rotary movement and lifting movement can be performed between hand wheel and threaded sleeve |
WO2007035093A2 (en) * | 2005-09-26 | 2007-03-29 | Think! Global B.V. | Administering and evacuation system |
WO2007035093A3 (en) * | 2005-09-26 | 2007-08-23 | Think Global B V | Administering and evacuation system |
Also Published As
Publication number | Publication date |
---|---|
GB9110910D0 (en) | 1991-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |