GB2339696A - Deposit and encrustation resistant long term urethral catheter - Google Patents

Deposit and encrustation resistant long term urethral catheter Download PDF

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Publication number
GB2339696A
GB2339696A GB9815760A GB9815760A GB2339696A GB 2339696 A GB2339696 A GB 2339696A GB 9815760 A GB9815760 A GB 9815760A GB 9815760 A GB9815760 A GB 9815760A GB 2339696 A GB2339696 A GB 2339696A
Authority
GB
United Kingdom
Prior art keywords
catheter
lumen
long term
encrustation
deposit
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Withdrawn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
GB9815760A
Other versions
GB9815760D0 (en
Inventor
Alexander Robert Ead Blacklock
Mohammed L Al-Sudani
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.)
AL SUDANI MOHAMMED L
Original Assignee
AL SUDANI MOHAMMED L
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 AL SUDANI MOHAMMED L filed Critical AL SUDANI MOHAMMED L
Priority to GB9815760A priority Critical patent/GB2339696A/en
Publication of GB9815760D0 publication Critical patent/GB9815760D0/en
Priority to GB9916834A priority patent/GB2339698A/en
Publication of GB2339696A publication Critical patent/GB2339696A/en
Withdrawn legal-status Critical Current

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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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/02—Inorganic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A61L29/18—Materials at least partially X-ray or laser opaque

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Urology & Nephrology (AREA)
  • Chemical & Material Sciences (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Inorganic Chemistry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • External Artificial Organs (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Description

2339696 DEPOSIT AND ENCRUSTATION RESISTANT LONG TERM URETHRAL CATHETER
This invention relates to the standard type of urethral catheter made of synthetic rubber, plastic or silicone rubber type material which is retained in the bladder by means of a water inflated balloon incorporated into the tip end of the catheter.
Such catheters are widely used but suffer from the disadvantage, even when designed for long term use, of blocking; due to the formation of infected calcified deposited material ie encrustation within the lumen of the catheter. This material starts with the formation of a bio-film which becomes adherent to the wall of the catheter lumen. Bacteria attach to the bio-film and build up a matrix which becomes calcified as calcium salts deposit out from the urine into the bio-film. Eventually the lumen of the catheter blocks.
17he object of the invention is to prevent bio-film formation and bacteria build up within the lumen of the catheter so that calcified deposits and encrustations do not occur to cause catheter blockage. The catheter will therefore be in situ for much longer than presently available catheters and would be more comfortable and more trouble free than present catheters.
Accordingly the catheter is designed to create a passive electrical field within the urine within the lumen of the catheter which will deter biofilm formation and adherence of bacteria to the inner wall of the catheter. This in turn will prevent deposit and encrustation. A copper strip is attached to the wall of the lumen of the catheter diametrically opposite a similarly attached strip of another metal or alloy. Both strips run the full length of the catheter lumen and act as electrodes. The electrode strips are connected to each other around the external; ie open, end of the
2 catheter, The effect of these two electrodes, in close proximity in an electrolyte solution, namely urine, will be to create a passive electrical field.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which; Fig 1 shows in perspective a standard design of urethral catheter with a copper strip (1) and other metal or alloy strip (2) acting as electrodes running along the wall of the lumen and connected to each other around the external, ie open end of the catheter.
Referring to the drawing, the standard long term urethral catheter probably made of a silicone rubber compound is inserted into the urethra and the balloon (3) inflated to retain the catheter. Once urine enters the lumen of the catheter an electrical field is created which prevents bio-film formation with subsequent adherence of bacteria and deposits of calcium salts which cause encrustation and catheter blockage.
3

Claims (2)

1. A deposit and encrustation resistant long term urethral catheter which is an adaptation of a standard long term urethral catheter in which a passive electrical field is created within the urine within the lumen of the catheter by means of having diametrically opposed and connected electrode strips, one of copper and the other of other metal or alloy, attached to the wall of the lumen and running the length of the catheter.
2. A deposit and encrustation resistant long term urethral catheter as claimed in Claim 1, wherein an active electrical field within the urine within the lumen of the catheter is created by means of two diametrically opposed copper strips acting as electrodes attached to the wall of the lumen and running the length of the catheter with the external end of each strip being attached to the positive or negative terminal of a small watch type battery incorporated into the open external end of the catheter. This allows an active electrical field to be generated when urine fills the lumen of the catheter.
GB9815760A 1998-07-21 1998-07-21 Deposit and encrustation resistant long term urethral catheter Withdrawn GB2339696A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9815760A GB2339696A (en) 1998-07-21 1998-07-21 Deposit and encrustation resistant long term urethral catheter
GB9916834A GB2339698A (en) 1998-07-21 1999-07-20 Urethral catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9815760A GB2339696A (en) 1998-07-21 1998-07-21 Deposit and encrustation resistant long term urethral catheter

Publications (2)

Publication Number Publication Date
GB9815760D0 GB9815760D0 (en) 1998-09-16
GB2339696A true GB2339696A (en) 2000-02-09

Family

ID=10835826

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9815760A Withdrawn GB2339696A (en) 1998-07-21 1998-07-21 Deposit and encrustation resistant long term urethral catheter
GB9916834A Withdrawn GB2339698A (en) 1998-07-21 1999-07-20 Urethral catheter

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9916834A Withdrawn GB2339698A (en) 1998-07-21 1999-07-20 Urethral catheter

Country Status (1)

Country Link
GB (2) GB2339696A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013304A1 (en) * 2006-03-21 2007-09-27 Medicoplast International Gmbh Device for germ reduction or germ destruction in natural or artificial body openings, comprises tube-shaped unit for insertion into body openings, and electrode, which is connected over switching unit with energy source

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2426199A (en) * 2005-05-20 2006-11-22 Alexander Robert Ead Blacklock Urinary catheter with reduced encrustation and blockage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411648A (en) * 1981-06-11 1983-10-25 Board Of Regents, The University Of Texas System Iontophoretic catheter device
US4569673A (en) * 1984-01-12 1986-02-11 Battelle Development Corporation Bacterial barrier for indwelling catheters and other medical devices
EP0206024A2 (en) * 1985-06-07 1986-12-30 Becton, Dickinson and Company Antimicrobial surfaces and inhibition of microorganism growth thereby

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240838A1 (en) * 1982-11-05 1984-05-10 Hilsenitz, Eric, Dr.med., 3502 Vellmar Aggregation-preventing indwelling cannulas or catheters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411648A (en) * 1981-06-11 1983-10-25 Board Of Regents, The University Of Texas System Iontophoretic catheter device
US4569673A (en) * 1984-01-12 1986-02-11 Battelle Development Corporation Bacterial barrier for indwelling catheters and other medical devices
EP0206024A2 (en) * 1985-06-07 1986-12-30 Becton, Dickinson and Company Antimicrobial surfaces and inhibition of microorganism growth thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013304A1 (en) * 2006-03-21 2007-09-27 Medicoplast International Gmbh Device for germ reduction or germ destruction in natural or artificial body openings, comprises tube-shaped unit for insertion into body openings, and electrode, which is connected over switching unit with energy source

Also Published As

Publication number Publication date
GB9916834D0 (en) 1999-09-22
GB2339698A (en) 2000-02-09
GB9815760D0 (en) 1998-09-16

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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)