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WO1992007591A1 - Dispositif d'aspiration - Google Patents

Dispositif d'aspiration Download PDF

Info

Publication number
WO1992007591A1
WO1992007591A1 PCT/GB1991/001809 GB9101809W WO9207591A1 WO 1992007591 A1 WO1992007591 A1 WO 1992007591A1 GB 9101809 W GB9101809 W GB 9101809W WO 9207591 A1 WO9207591 A1 WO 9207591A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction device
tube
chamber
valve
actuating
Prior art date
Application number
PCT/GB1991/001809
Other languages
English (en)
Inventor
Francis Emanuel Arnstein
Gary Brian Smith
Original Assignee
Francis Emanuel Arnstein
Gary Brian Smith
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 Francis Emanuel Arnstein, Gary Brian Smith filed Critical Francis Emanuel Arnstein
Publication of WO1992007591A1 publication Critical patent/WO1992007591A1/fr

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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/64—Containers with integrated suction means
    • A61M1/68—Containers incorporating a flexible member creating suction

Definitions

  • the present invention relates to a suction device, in particular but not exclusively, for extracting mucus from the airway of a neonate.
  • a suction device comprising:- an actuating chamber having an inlet and an outlet, the actuating chamber being at least partially collapsible under manual compression for expulsion of fluid material therefrom and being resilient for recovery of its original volume to draw in fluid material; an aspiration tube connected to the inlet and via which fluid material can be drawn into the device towards the actuating chamber; a collection chamber - having a collection space - connected to the outlet for receiving drawn-in fluid material from the actuating chamber and storing it the collection space; an inlet non-return valve at the inlet of the actuating chamber for allowing passage of drawn-in fluid material from the aspiration tube to the actuating chamber; and an outlet non-return valve between the actuating chamber and the collection space of the collection chamber for allowing passage of drawn-in fluid material into the collection space for storage there.
  • the preferred suction device had its inlet non-return valve within the actuating chamber at its inlet.
  • the object of the present invention is to provide an improved suction device of this type.
  • a suction device includes an actuating chamber comprised of a flexible tube enclosing a resilient member adapted for distending the flexible tube for recovery of the actuating chamber to its original volume after manual compression.
  • the collection chamber will normally be closed for containment of aspirated material, it is envisaged that the collection chamber may be open, possibly even to an extent that the collection chamber is vestigial.
  • the resilient member has an open centre in which the inlet valve is accommodated.
  • the resilient member is a tubular member. It may be cropped from a length of extruded plastics material tube or may be injection moulded as a separate item.
  • the flexible tube may be comprised of two pieces of flat plastics material welded together to tubular form.
  • the flexible tube may be of "lie-flat" plastics material tube.
  • the flexible tube is welded to the aspiration or inlet tube.
  • This provides a flexible connection of the aspiration tube, allowing ready manipulation of the aspiration tube in use with the actuating chamber held in the palm of the hand.
  • the inlet valve is a flutter valve, secured onto a portion of the aspiration tube terminating within the actuating chamber.
  • the flutter valve is welded to the aspiration tube at the weld of the aspiration tube to the flexible tube of the actuating chamber.
  • the preferred flutter valve is short to avoid re-expulsion of aspirated material. It can be tapered from the diameter of the aspiration tube to a lateral end dimension when collapsed of three or more times this dimension.
  • the inner end of the aspiration tube may be tapered to a shape complementary to the free shape of the flutter valve to support the flutter valve against total collapse and re-expulsion of aspirated material.
  • the collection chamber is an extensio of the tubular material of the flexible tube of the actuating chamber.
  • the chambers are separate by a weld across this tubular material.
  • the outlet valve may be secured by this weld and is conveniently a flutter valve secured to a piece of rigid tube held by this weld.
  • the entire aspirator is of transparent o translucent material for viewing of the fluid material bein aspirated.
  • the inlet flutter valve and the outlet valve are comprised of a singl piece of valve tube, which extends through the actuating chamber and into the collection chamber and has a cut away portion in the actuating chamber through which aspirated material can enter the actuating chamber from the aspiratio tube and can leave the actuating chamber towards the collection chamber.
  • the flexible tube is welded across its extent to separate the actuating and collection chambers by a pair of welds which extend as far as the valve tube from opposite sides, but do not extend across the valve tube.
  • Figure 1 is a plan view of a suction device of the invention
  • Figure 2 is a cross-sectional side view on Line II-II of the device of Figure 1;
  • Figure 3 is a cross-sectional end view of the device o Figure 1 on Line III-III in Figure 2; and Figure 4 is a view similar to Figure 1 of a variant of the suction device of Figure 1.
  • the suction device according to the invention illustrated in the drawing is primarily for aspirating mucu from the airway of a neonate. It may also be used for aspirating me ⁇ onium and other fluids. It has an inlet or aspiration tube 1 terminating within an actuating chamber 2.
  • a collection chamber 3 for the collection of aspirated material is connected to the actuating chamber 2.
  • the actuating chamber 2 - and indeed the collection chamber 3 - is formed of a flexible tube 4 comprised of two pieces of transparent flat plastics sheet 5,6 welded together along side edges 7,8, a front edge 9 and a rear edge 10, which latter defines the boundary between the actuating chamber 2 and the collection chamber 3.
  • a length of resilient polythene tubing 11 which normally distends the actuating chamber 2 to give it a generally eliptical cross-sectional shape.
  • the tubing 11 may be a cropped off piece of a longer length of extruded tubing; or it may be a injection moulded item.
  • the tube 4 is a tight fit over the tubing 11 and of sufficient resiliency to generate a suctio of lOOmmHg on recovery after compression.
  • the actuating chamber has a transverse dimension of 45mm and a front to rear length of 40mm.
  • the inlet tube 1 is secured by the weld at the front edge 9 of the actuating chamber.
  • a flutter valve 12 is secured to the outlet end of the inlet tube by the front edge weld and extends within the tubing 11.
  • the flutter valve is comprised of a short length - typically 25mm - of two skins of polythene sheet, of truncated cone shape. At the truncated end, the flutter valve is welded to the aspiration tube, whose diameter is typically 5mm. At its outlet end, it has a transverse dimension of 18mm.
  • the aspiration tube extends into the flutter valve and terminates with a wedge shape 13 in side view formed by paring down of the end of the tube.
  • the actuating and collection chambers 2,3 are inter ⁇ connected by a connection tube 14 included within the weld at the rear edge 10 of the actuating chamber, together with an outlet flutter valve 15 within the collection chamber.
  • the valve is of similar construction to the inlet valve 12, but is longer and has parallel sides.
  • the collection chamber 3 is welded closed at end 16 opposite from the actuating chamber. Conveniently, the weld 10 is of sufficient width to be cut through allowing the collection chamber and the actuating chamber to remain intact so that the contents can be sent in it for analysis.
  • the suction device thereshown has its inlet tube 1, actuating chamber 2, collection chamber 3, flexible tube 4 and distension tubing 11 identical to those of the suction device of Figure 1. Its inlet and outlet flutter valves 112 and 115 are modified in that they . are of a single piece of thin-walled, lay-flat tube 150.
  • the tube 150 passes through the weld 110 between the actuating and collection chambers.
  • the weld 110 is arranged as a pair of welds extending in from the edges of the device as far as the edge of the tube 150, but no further so as not to close the tube. This is achieved by notching of the jaws of a welding machine at the passage of the tube 150 through the combined weld 110.
  • the tube 150 i partially cut away in the actuating chamber, whereby aspirated material can enter the chamber from the inlet and valve tubes; and the valve tube 150 can collapse and seal between its cut away portion 151 and the inlet tube to act as a non-return valve. Material to be expelled from the actuating chamber passes back into the valve tube through the cut away portion 151 and into the collection chamber, that is past the weld 110.
  • the suction device may be somewhat larger for neonate use and indeed be scaled up for aspirating other fluids in a medical context.
  • the collection chamber may not be closed, for instance having an over-flow aperture to enable a volume of material greater than that of the collection chamber to be aspirated.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

Le dispositif d'aspiration décrit, qui sert à extraire le mucus des voies respiratoires d'un nouveau-né, comprend un tube d'entrée (1) débouchant dans une chambre d'activation (2) à laquelle est reliée une chambre collectrice. La chambre d'activation (2) et la chambre collectrice (3) sont constituées par un tube flexible (4), à l'intérieur duquel est placé un manchon en polythène résillient (11) qui, en situation normale, confère à la section transversale de la chambre d'activation (2) une forme généralement elliptique. Une soupape à battement (12) est fixée à l'extrémité de sorite du tube d'entrée et s'étend à l'intérieur du manchon (11). La chambre d'activation (2) et la chambre collectrice (3) sont reliées entre elles par un tube de raccordement (14) relié à une soupape à battement de sortie (15) à l'intérieur de la chambre collectrice.
PCT/GB1991/001809 1990-10-26 1991-10-17 Dispositif d'aspiration WO1992007591A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9023346.1 1990-10-26
GB909023346A GB9023346D0 (en) 1990-10-26 1990-10-26 Suction device

Publications (1)

Publication Number Publication Date
WO1992007591A1 true WO1992007591A1 (fr) 1992-05-14

Family

ID=10684413

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/001809 WO1992007591A1 (fr) 1990-10-26 1991-10-17 Dispositif d'aspiration

Country Status (5)

Country Link
AU (1) AU8727091A (fr)
GB (1) GB9023346D0 (fr)
IE (1) IE913750A1 (fr)
IL (1) IL99784A0 (fr)
WO (1) WO1992007591A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8636721B2 (en) 2003-11-20 2014-01-28 Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
US8814839B2 (en) 2004-10-12 2014-08-26 C. R. Bard, Inc. Corporeal drainage system
US11344318B2 (en) 2016-07-18 2022-05-31 Merit Medical Systems, Inc. Inflatable radial artery compression device
US12426864B2 (en) 2021-06-18 2025-09-30 Merit Medical Systems, Inc. Hemostasis devices and methods of use

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828546A (en) * 1987-08-21 1989-05-09 Surgidyne, Inc. Bulb evacuator for closed wound suction
WO1990003194A1 (fr) * 1988-09-22 1990-04-05 Francis Emanuel Arnstein Aspirateur manuel portatif, utile tout particulierement dans le domaine medical

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828546A (en) * 1987-08-21 1989-05-09 Surgidyne, Inc. Bulb evacuator for closed wound suction
WO1990003194A1 (fr) * 1988-09-22 1990-04-05 Francis Emanuel Arnstein Aspirateur manuel portatif, utile tout particulierement dans le domaine medical

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8636721B2 (en) 2003-11-20 2014-01-28 Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
US9393353B2 (en) 2003-11-20 2016-07-19 The Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
US9907887B2 (en) 2003-11-20 2018-03-06 The Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
US10213532B2 (en) 2003-11-20 2019-02-26 The Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
US8814839B2 (en) 2004-10-12 2014-08-26 C. R. Bard, Inc. Corporeal drainage system
US9295764B2 (en) 2004-10-12 2016-03-29 C. R. Bard, Inc. Corporeal drainage system
US9913935B2 (en) 2004-10-12 2018-03-13 C. R. Bard, Inc. Corporeal drainage system
US10946123B2 (en) 2004-10-12 2021-03-16 Merit Medical Systems, Inc. Corporeal drainage system
US11344318B2 (en) 2016-07-18 2022-05-31 Merit Medical Systems, Inc. Inflatable radial artery compression device
US12426864B2 (en) 2021-06-18 2025-09-30 Merit Medical Systems, Inc. Hemostasis devices and methods of use

Also Published As

Publication number Publication date
AU8727091A (en) 1992-05-26
IE913750A1 (en) 1992-05-22
IL99784A0 (en) 1992-08-18
GB9023346D0 (en) 1990-12-05

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