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WO2003079942A1 - Body fluid sampling assembly - Google Patents

Body fluid sampling assembly Download PDF

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Publication number
WO2003079942A1
WO2003079942A1 PCT/IB2003/001084 IB0301084W WO03079942A1 WO 2003079942 A1 WO2003079942 A1 WO 2003079942A1 IB 0301084 W IB0301084 W IB 0301084W WO 03079942 A1 WO03079942 A1 WO 03079942A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
valve
bag
sampling
spigots
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.)
Ceased
Application number
PCT/IB2003/001084
Other languages
French (fr)
Inventor
Marius Jordaan
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
Priority to AU2003209937A priority Critical patent/AU2003209937A1/en
Priority to BR0303395-3A priority patent/BR0303395A/en
Publication of WO2003079942A1 publication Critical patent/WO2003079942A1/en
Priority to SE0303144A priority patent/SE0303144L/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
    • A61B10/0045—Devices for taking samples of body liquids
    • A61B10/007—Devices for taking samples of body liquids for taking urine samples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
    • A61F5/4404—Details or parts
    • A61F5/4405—Valves or valve arrangements specially adapted therefor ; Fluid inlets or outlets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
    • A61F5/4404—Details or parts
    • A61F5/4408—Means for securing receptacles or bags to the body otherwise than by adhesives, e.g. belts, straps or harnesses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
    • A61F5/441—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices having venting or deodorant means, e.g. filters ; having antiseptic means, e.g. bacterial barriers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
    • A61F5/451—Genital or anal receptacles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G9/00—Bed-pans, urinals or other sanitary devices for bed-ridden persons; Cleaning devices therefor, e.g. combined with toilet-urinals
    • A61G9/006—Urinals
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/223—Multiway valves

Definitions

  • This invention relates to a bag assembly used for sampling fluid, usually urine, from a patient and more particularly to the connection between the body drainage outlet and the sample connection.
  • Drainage bags connected to a patient via a catheter and flexible tube for collection of urine discharged from the body are well known.
  • the connector includes a plug which may be pierced by a syringe needle and which will seal automatically once the needle is withdrawn.
  • the connector is a rigid tube with a central body portion having a transverse aperture into the bore through the body. This aperture is plugged with resilient material through which a syringe needle can be inserted to communicate with a flow through the connector. This enables a sample of freshly excreted body fluid to be obtained.
  • the manipulation of the syringe requires care and dexterity to satisfactorily obtain a required sample. Also to ensure the connector is full the drainage tube needs to be folded to provide a temporary reservoir in the tube and into which the syringe needle may be introduced through the plug and some of the fluid withdrawn as a test sample.
  • the procedure is thus one of potential danger because of the serious and often fatal infections which can be transmitted through mishandling of hypodermic syringes and in practice frequently leads to the drainage tube being temporarily removed from the drainage bag to allow a sample to be taken therefrom that is not fresh.
  • a connector for sampling drained body fluids comprising a three-way valve fitted to one end of a flexible tube and adapted for connection to a collection outlet. Further features of this invention provide for the three-way valve to be moulded in plastics material and of a kind having a body with three openings with connection spigots, two openings being directly opposed to each other and the third spaced between them but having its spigot inclined at an acute angle to one of the other spigots.
  • the invention also provides for the spigots to be tapered and provide a serrated surface for frictional engagement with flexible plastics material drainage tubing, closure caps or other connectors.
  • FIG.1 illustrates the sampling connector ready for use with a simple standard disposable collection bag
  • FIG.2 shows the connector on the kind of bag used for measured sample collection
  • FIG. 3 is an exploded view of a valve for the connector.
  • sampling connector (1) is attached to a conventional standard polyvinyl chloride urine collection bag (2).
  • the attachment is effected through a flexible tube (3) and an inlet spigot (4) for the bag (2).
  • the standard bag (2) usually has the inlet spigot (4) welded into position during manufacture and this may be integral with a length of tube (3).
  • the bag also has an outlet connection welded into position during manufacture and this outlet is fitted with a closure valve (5).
  • valve (5) will be a slide valve operable across the flow passage in well known manner. This also adds simplicity to the assembly.
  • a three-way valve (6) is fitted to the inlet to the bag in the length of the flexible tube (3). This makes it possible to locate the valve in a convenient position for use in sampling away from a catheter connection (3A) and where samples can be easily taken at any time. The ease with which samples can be taken makes it highly unlikely that any tube (3) will be disconnected for this purpose.
  • the three-way valve (6) has three openings with connection spigots (7) and thus provides a direct through flow for uninterrupted drainage or a by-pass for collection of samples or, where necessary, shut-off for the removal for disposal of the collection bag (2) and replacement with a new bag.
  • the openings into the spigots (7) such that two openings are arranged directly opposed to each other and the third spaced between them but having its spigot (7A) inclined at an acute angle to one of the other spigots (7).
  • the spigots (7) have tapered and serrated external surfaces to enable them to be easily connected in sealing engagement with the different fittings used in body fluid drainage and collection.
  • the three-way valve (6) is shown in use on a collection and measuring bag (8) made from polyvinyl chloride.
  • This bag (8) is reusable being provided at the inlet with a reflux valve (9) and having a tubular outlet (10) fitted with a manually operated closure valve (11).
  • This reflux valve (9) is usually provided as an integral part of the bag (8).
  • a rigid shaped container (12) for accurate measuring of samples and a second three-way valve (13) may be positioned between the container (12) and the measuring bag (8).
  • the container (12) is provided because the volumes demarcated on a scale (14) on the bag (8) are only approximate the use of the bag (8) for measured samples is generally not acceptable under post-operative conditions for example.
  • the bags do however give a useful indication of rate of flow through the catheter and thus the effective function of the urinary system of a patient.
  • the drainage assembly can provide an automatic overflow (15) from the container (12) through the three-way valve (13) into the bag (8).
  • the valve (13) can also be set to allow direct flow through the container (12) into the bag (8) or to prevent flow from the container other than through the overflow.
  • the valve (13) can also be closed when the bag (8) needs replacement for any reason. It will further be appreciated that the construction of the valve (6) enables a selected directional flow to be obtained under gravity.
  • the three-way valve connector can also be used with any other drainage or sampling bag assembly to obtain accurately measured samples.
  • the spigot for sampling can easily be kept clean and sterile when not in use by suitable protective caps and wiping after use with antiseptic material.
  • the invention thus provides body fluid drainage and sampling connector which enables the above sampling functions to be achieved in a more convenient manner than has been possible heretofore. However it is the facilitating of the sampling of freshly drained body fluids in a simple and safe manner which is most desirable particularly under circumstances where such sampling must be undertaken by persons of little if any medical training.
  • Other fittings than tubing and caps can also be connected to the connector of this invention.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Epidemiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Nursing (AREA)
  • Vascular Medicine (AREA)
  • Hematology (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention concerns a connector for sampling drained body fluids wherein a flexible tube has a three-way valve connected to at least one end so that a flow can be provided either for drainage collection or for separated flow of fresh sample body fluid.

Description

BODY FLUID SAMPLING ASSEMBLY
FIELD OF THE INVENTION
This invention relates to a bag assembly used for sampling fluid, usually urine, from a patient and more particularly to the connection between the body drainage outlet and the sample connection.
BACKGROUND TO THE INVENTION
Drainage bags connected to a patient via a catheter and flexible tube for collection of urine discharged from the body are well known.
It is frequently necessary when a patient is being treated to take samples of freshly discharged urine for examination. This is presently usually achieved by having the catheter attached through a special connector to the drainage tube. The connector includes a plug which may be pierced by a syringe needle and which will seal automatically once the needle is withdrawn. The connector is a rigid tube with a central body portion having a transverse aperture into the bore through the body. This aperture is plugged with resilient material through which a syringe needle can be inserted to communicate with a flow through the connector. This enables a sample of freshly excreted body fluid to be obtained.
Being located, as it is in use, near the catheter the manipulation of the syringe requires care and dexterity to satisfactorily obtain a required sample. Also to ensure the connector is full the drainage tube needs to be folded to provide a temporary reservoir in the tube and into which the syringe needle may be introduced through the plug and some of the fluid withdrawn as a test sample.
The procedure is thus one of potential danger because of the serious and often fatal infections which can be transmitted through mishandling of hypodermic syringes and in practice frequently leads to the drainage tube being temporarily removed from the drainage bag to allow a sample to be taken therefrom that is not fresh.
As far as the applicant is aware this procedure is widely used throughout the world.
The closest prior art known to the applicant is US Patent 4,000,649 assigned to International Patent Company. This document discloses a three-way valve as part of a complicated combined measuring and collection bag assembly. The valve is secured to the assembly and cannot be reused or have its position changed. While it is stated its purpose is to enable collected urine to be sampled it is not possible for fresh samples to be taken as urine must first be collected in a measuring container. Fresh urine sampling is not indicated in the document.
OBJECT OF THE INVENTION
It is the object of this invention to provide a connector which enables sampling to be effected in a simpler more efficient manner.
SUMMARY OF THE INVENTION
In accordance with this invention there is provided a connector for sampling drained body fluids comprising a three-way valve fitted to one end of a flexible tube and adapted for connection to a collection outlet. Further features of this invention provide for the three-way valve to be moulded in plastics material and of a kind having a body with three openings with connection spigots, two openings being directly opposed to each other and the third spaced between them but having its spigot inclined at an acute angle to one of the other spigots.
The invention also provides for the spigots to be tapered and provide a serrated surface for frictional engagement with flexible plastics material drainage tubing, closure caps or other connectors.
BRIEF DESCRIPTION OF THE DRAWINGS
A preferred example of the invention is described below with reference to the accompanying drawings in which
FIG.1 illustrates the sampling connector ready for use with a simple standard disposable collection bag; and
FIG.2 shows the connector on the kind of bag used for measured sample collection; and
FIG. 3 is an exploded view of a valve for the connector.
DETAILED DESCRIPTION OF THE INVENTION
As shown the sampling connector (1) is attached to a conventional standard polyvinyl chloride urine collection bag (2). The attachment is effected through a flexible tube (3) and an inlet spigot (4) for the bag (2).
The standard bag (2) usually has the inlet spigot (4) welded into position during manufacture and this may be integral with a length of tube (3). The bag also has an outlet connection welded into position during manufacture and this outlet is fitted with a closure valve (5).
Preferably the valve (5) will be a slide valve operable across the flow passage in well known manner. This also adds simplicity to the assembly.
It should be noted that a three-way valve (6) is fitted to the inlet to the bag in the length of the flexible tube (3). This makes it possible to locate the valve in a convenient position for use in sampling away from a catheter connection (3A) and where samples can be easily taken at any time. The ease with which samples can be taken makes it highly unlikely that any tube (3) will be disconnected for this purpose.
The three-way valve (6) has three openings with connection spigots (7) and thus provides a direct through flow for uninterrupted drainage or a by-pass for collection of samples or, where necessary, shut-off for the removal for disposal of the collection bag (2) and replacement with a new bag. To enable this to be done the openings into the spigots (7) such that two openings are arranged directly opposed to each other and the third spaced between them but having its spigot (7A) inclined at an acute angle to one of the other spigots (7).
The spigots (7) have tapered and serrated external surfaces to enable them to be easily connected in sealing engagement with the different fittings used in body fluid drainage and collection.
As shown in Fig 2 the three-way valve (6) is shown in use on a collection and measuring bag (8) made from polyvinyl chloride. This bag (8) is reusable being provided at the inlet with a reflux valve (9) and having a tubular outlet (10) fitted with a manually operated closure valve (11). This reflux valve (9) is usually provided as an integral part of the bag (8). Between the three-way valve (6) and the measuring bag (8) is a rigid shaped container (12) for accurate measuring of samples and a second three-way valve (13) may be positioned between the container (12) and the measuring bag (8). The container (12) is provided because the volumes demarcated on a scale (14) on the bag (8) are only approximate the use of the bag (8) for measured samples is generally not acceptable under post-operative conditions for example. The bags do however give a useful indication of rate of flow through the catheter and thus the effective function of the urinary system of a patient.
However the usual system is improved by having a connection according to this invention attached to both the inlet and the outlet of the container (12). In this way, with the valve (13) being a valve of the kind illustrated at (6) but inverted, the drainage assembly can provide an automatic overflow (15) from the container (12) through the three-way valve (13) into the bag (8). The valve (13) can also be set to allow direct flow through the container (12) into the bag (8) or to prevent flow from the container other than through the overflow. The valve (13) can also be closed when the bag (8) needs replacement for any reason. It will further be appreciated that the construction of the valve (6) enables a selected directional flow to be obtained under gravity.
It will be appreciated that the three-way valve connector can also be used with any other drainage or sampling bag assembly to obtain accurately measured samples. The spigot for sampling can easily be kept clean and sterile when not in use by suitable protective caps and wiping after use with antiseptic material.
The invention thus provides body fluid drainage and sampling connector which enables the above sampling functions to be achieved in a more convenient manner than has been possible heretofore. However it is the facilitating of the sampling of freshly drained body fluids in a simple and safe manner which is most desirable particularly under circumstances where such sampling must be undertaken by persons of little if any medical training. Other fittings than tubing and caps can also be connected to the connector of this invention.

Claims

A connector (1) for sampling drained body fluids characterized in that it comprises a three-way valve (6) fitted to one end of a flexible tube (3) and adapted for connection to a collection outlet.
2. A connector (1) as claimed in claim 1 characterized in that the valve (5A) body has three openings with connection spigots (7), two openings being directly opposed to each other and the third spaced between them but having its spigot (7A) inclined at an acute angle to one of the spigots (7).
3. A connector as claimed in claim 2 characterized in that the spigots (7) provide tapered and serrated surface for frictional engagement with different fittings.
A connector as claimed in claim 2 characterized in that the valve (6) is moulded from synthetic plastics material.
PCT/IB2003/001084 2002-03-27 2003-03-25 Body fluid sampling assembly Ceased WO2003079942A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2003209937A AU2003209937A1 (en) 2002-03-27 2003-03-25 Body fluid sampling assembly
BR0303395-3A BR0303395A (en) 2002-03-27 2003-03-25 Body Fluid Sampling Connector
SE0303144A SE0303144L (en) 2002-03-27 2003-11-26 Samples for body fluids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2002/2450 2002-03-27
ZA200202450 2002-03-27

Publications (1)

Publication Number Publication Date
WO2003079942A1 true WO2003079942A1 (en) 2003-10-02

Family

ID=28455334

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/001084 Ceased WO2003079942A1 (en) 2002-03-27 2003-03-25 Body fluid sampling assembly

Country Status (4)

Country Link
AU (1) AU2003209937A1 (en)
BR (1) BR0303395A (en)
SE (1) SE0303144L (en)
WO (1) WO2003079942A1 (en)

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WO2008057946A3 (en) * 2006-11-02 2008-07-10 Fenwal Inc Flow controllers and systems and methods using the same
WO2008125007A1 (en) * 2007-04-11 2008-10-23 Xingming Zhang Transfusion exhaust valve
WO2017002050A3 (en) * 2015-06-30 2017-03-02 Jayaratne Anuruddika Device with catheter tube and external public blader with hanger
JP2018201636A (en) * 2017-05-31 2018-12-27 株式会社トップ Three-way stopcock
WO2021014462A1 (en) * 2019-07-19 2021-01-28 Payeli Sravan Kumar Systems for aspiration of fluids
WO2021102296A1 (en) * 2019-11-21 2021-05-27 Purewick Corporation Portable urine collection system and related methods
US11376152B2 (en) 2014-03-19 2022-07-05 Purewick Corporation Apparatus and methods for receiving discharged urine
US11382786B2 (en) 2014-03-19 2022-07-12 Purewick Corporation Apparatus and methods for receiving discharged urine
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US12472090B2 (en) 2020-04-17 2025-11-18 Purewick Corporation Female external catheter devices having a urethral cup, and related systems and methods
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BR0303395A (en) 2004-03-30
SE0303144L (en) 2004-01-16
SE0303144D0 (en) 2003-11-26

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