GB2245836A - Adjustable respiratory valve - Google Patents

Adjustable respiratory valve Download PDF

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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Withdrawn
Application number
GB9110910A
Other versions
GB9110910D0 (en
Inventor
Kenneth Irwin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB9110910D0 publication Critical patent/GB9110910D0/en
Publication of GB2245836A publication Critical patent/GB2245836A/en
Withdrawn legal-status Critical Current

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)

Claims :
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.
GB9110910A 1990-05-24 1991-05-21 Adjustable respiratory valve Withdrawn GB2245836A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)