EP0256060A1 - Systeme de succion pour drainage de blessures et drainage gastro-intestinal - Google Patents

Systeme de succion pour drainage de blessures et drainage gastro-intestinal

Info

Publication number
EP0256060A1
EP0256060A1 EP87901000A EP87901000A EP0256060A1 EP 0256060 A1 EP0256060 A1 EP 0256060A1 EP 87901000 A EP87901000 A EP 87901000A EP 87901000 A EP87901000 A EP 87901000A EP 0256060 A1 EP0256060 A1 EP 0256060A1
Authority
EP
European Patent Office
Prior art keywords
chamber
reservoir
accordance
collapsible
vacuum
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Withdrawn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
EP87901000A
Other languages
German (de)
English (en)
Inventor
Victor Leslie George Osmond
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 EP0256060A1 publication Critical patent/EP0256060A1/fr
Withdrawn legal-status Critical Current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
    • 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 drainage of wounds and in particular to a system incorporating a suction device to facilitate s ⁇ such drainage.
  • Such drainage is achieved by the introduction of a perforated cannula into the area of the wound, the cannula remaining in the wound and exiting through the skin to facilitate drainage for a
  • the cannula is placed in coc ⁇ nunication with a vacuum via a tube which tube is also in communication with a
  • the second system currently utilised involves an electrically operated pump capable of generating a vacuum and connected to the wound site via a collection jar or jars.
  • This lastmentioned system can readily be programmed to provide an intermittent vacuum thus preventing muscosa or tissue adhering to the perforated cannula and allowing pooling of fluids in the wound site during the off- cycle ready for evacuation during the next on-cycle.
  • Electrical suction units as lastmentioned however require the installation of a bottle between the suction unit and the cannula and the changing of such bottle when filled. As patients may be suffering from communicable diseases such as AIDS the handling and changing of bottles by nursing staff is undesirable as the staff may come into contact with the evacuated fluids.
  • a hollow chamber adapted to receive a collapsible reservoir for the collection of fluids; an opening in said hollow chamber to facilitate the introduction and removal of a collapsible reservoir; means to close and seal said reservoir such that a vacuum may be generated and maintained in said chamber; a first port in said chamber to facilitate evacuation thereof; means to determine when a collapsible reservoir in the chamber is approaching a full state, and a second port to facilitate a liquid conduit passing into the chamber.
  • Figure 1 is a perspective view of the principal components of a system in accordance with the present invention
  • Figure 2 is a frontal view from the top of an assembled system in accordance with the present invention.
  • Figure 1 depicts a co]_-__E_3ibLe plastic reservoir 1 and a moulded chamber 2.
  • the moulded chamber includes a vacuum pump (not shown) in its base 3 and is provided with a hinged lid 4 to facilitate loading the chamber with the collapsible reservoir 1.
  • the lid incorporates a seal along its interface with the main body of the chamber such that when the lid is a closed state a vacuum may be induced in the chamber 2. It will be noted that the lid 4 is notched at 5 in order to accommodate the plastic tube 6 aidcannula connecting the reservoir to the wound site.
  • the plastic tubing terminates in an enlarged joining piece 7 before it enters the reservoir, this enlarged joining piece serving a dual function.
  • the enlarged joining piece in this case of silicon.is resiliently deformable so as to conform to the shape of notch 5 thereby ensuring a good seal where the joining piece passes through the lid 4.
  • the silicon joining piece additionally facilitates penetration by a needle and syringe in order that sampling or testing of fluids entering the reservoir may occur.
  • the chamber 2 has a transparent face portion 8 in order that the level in the reservoir may be observed without disturbing the system. It may further be observed that the reservoir itself is transparent and is provided with marked graduations 9 in order that the volume of fluid in the reservoir may be readily determined.
  • press 5 studs say male press studs on the inside of the chamber with female press studs on the external surface of the reservoir. If metal press studs were utilised then this system could be worked in with a"reservoir full"sensor.
  • the press studs on the reservoir could be in electrical communication with 10 short metal tapes extending down the inside of the bag. When the bag became full of liquid then the electrical resistance between each of the two said metal tapes would change thus enabling a sensor unit in the chamber and communicating with the reservoir through the press studs to determine the reservoir full state.
  • the vacuum pump (not shown) in the base 3 communicates with the chamber 2 via an inlet (not shown) adjacent the upper portion of the chamber.
  • the base of the chamb preferably incorporates a moisture sensor which operates an alarm 0 and pump cut off should a malfunction such as a rupture cause fluid to come into direct contact with the chamber.
  • Control knobs and 13 may be utilised to control the pump by selection of on/off or intermittent modes as well as regulating the vacuum.
  • a bar graph 14 is provided in order that the level of vacuum may be 5 accurately monitored. The L.E.D. depicted beneath the bar graph a 15 alert the operator as to specific faults or ' modes of the machin
  • the second L.E.D. indicates that status of a switching device which turns the unit off when the reservoir reaches a full state.
  • This switching device may take the form of a magnet implanted in the rear of the reservoir towards the top thereof which co-operates with a switching unit in the rear of the chamber when the reservoir is full and in an expanded state.
  • the third sensor may warn as to a vacuum leakage as may occur when the wrong type of bag or no bag at all is inserted in the chamber. When any of the three lastmentioned L.E.D. 's illuminate an audible alarm may also be activated and the pump unit is switched off.
  • the vacuum pump receive power from the mains and indeed it may be desirable in many circumstances that a battery back up be provided to ensure that the units operation was not dependent upon mains supply. In remote areas where access to mains power may be difficult and additionally in mobile applications such as ambulances and planes the unit could additionally be desigpsd so as to operate from a battery or vehicles electrical system.
  • the present system eliminates any contact between drained fluid and the chamber 2 and associated pump and control equipment.
  • the reservoir, canulae and plastic tubing may be disposed or removed to another location when full, again without the necessity of nursing staff coming into contact with fluid within the reservoir.
  • the reservoir may for example be connected to the patient (say in an operating theatre) prior to insertion into a vacuum chamber thus facilitating easy transport of the patient and reservoir (with cannula implanted in the patient) back to a ward having a suitable vacuum chamber.
  • the collapsible plastic reservoir is normally a sealed unit open only to the plastic tubing and cannula the chamber and vacuum unit should also be capable of accommodating a vented reservoir necessary to drain gastro intestinal wounds.
  • a volume of gas may be discharged into the cannula. along with fluids and con ⁇ sequently this gas needs to be evacuated from the resevoir in order that the reservoir may fill with fluid.
  • This reservoir consequently requires a vent in order that the gases may pass into the chamber through the vacuum pump to atmosphere.
  • a filter is required at the reservoir vent in such an embodiment.
  • all reservoirs should contain a non ⁇ return valve in order to prevent fluid returning along the inlet tubing and coming into contact with staff after the cannula °r reservoir is removed.

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)

Abstract

Ledit système comprend une chambre creuse (2) conçue pour recevoir un réservoir repliable (1) destiné à recueillir les fluides du corps. Une ouverture, ménagée dans ladite chambre creuse, facilite l'introduction et le retrait du réservoir repliable. Un dispositif (4) ferme et étanchéise ledit réservoir, de telle sorte qu'un vide d'air peut être créé et maintenu dans ladite chambre. Un premier orifice, ménagé dans ladite chambre, facilite l'évacuation. Un dispositif (8) détermine l'instant où le réservoir repliable placé dans la chambre est sur le point d'être plein et un second orifice (5) facilite le passage d'un conduit de liquide dans la chambre.
EP87901000A 1986-01-31 1987-01-30 Systeme de succion pour drainage de blessures et drainage gastro-intestinal Withdrawn EP0256060A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU4384/86 1986-01-31
AU438486 1986-01-31

Publications (1)

Publication Number Publication Date
EP0256060A1 true EP0256060A1 (fr) 1988-02-24

Family

ID=3694829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87901000A Withdrawn EP0256060A1 (fr) 1986-01-31 1987-01-30 Systeme de succion pour drainage de blessures et drainage gastro-intestinal

Country Status (2)

Country Link
EP (1) EP0256060A1 (fr)
WO (1) WO1987004626A1 (fr)

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* Cited by examiner, † Cited by third party
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