GB1427134A - Catheters - Google Patents

Catheters

Info

Publication number
GB1427134A
GB1427134A GB297272A GB297272A GB1427134A GB 1427134 A GB1427134 A GB 1427134A GB 297272 A GB297272 A GB 297272A GB 297272 A GB297272 A GB 297272A GB 1427134 A GB1427134 A GB 1427134A
Authority
GB
United Kingdom
Prior art keywords
catheter
conductive
plastics
moulded
distal end
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.)
Expired
Application number
GB297272A
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB297272A priority Critical patent/GB1427134A/en
Publication of GB1427134A publication Critical patent/GB1427134A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/276—Protection against electrode failure
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Cardiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

1427134 Plastics tubes NATIONAL RESEARCH DEVELOPMENT CORP 26 Feb 1973 [21 Jan 1972] 2972/72 Heading F2P [Also in Division A5] A catheter is formed of electrically insulating material incorporating a multiplicity of discrete electrically conductive paths extending from the inner surface to the outer surface of the catheter, said paths being distributed along a substantial length of the catheter and the distal end portion of the catheter being electrically insulating. The catheter may be moulded from plastics material containing an electrically conductive filler, e.g. carbon or a physiologically inert metal, the distal end portion of the catheter being of the plastics material without the filler. In a further embodiment a plastics catheter is moulded to include in its wall a woven braid containing conductive threads which are exposed at points on the inner and outer catheter surfaces. A conductive filament having lateral projections or a conductive helical filament may replace the braid. In another embodiment electrical conductors, e.g. inert metal rivets or staples extend through the catheter wall.
GB297272A 1972-01-21 1972-01-21 Catheters Expired GB1427134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB297272A GB1427134A (en) 1972-01-21 1972-01-21 Catheters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB297272A GB1427134A (en) 1972-01-21 1972-01-21 Catheters

Publications (1)

Publication Number Publication Date
GB1427134A true GB1427134A (en) 1976-03-10

Family

ID=9749510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB297272A Expired GB1427134A (en) 1972-01-21 1972-01-21 Catheters

Country Status (1)

Country Link
GB (1) GB1427134A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134845A1 (en) * 1983-09-21 1985-03-27 Walter Spaa Safety catheter
GB2224801A (en) * 1988-11-10 1990-05-16 Circulation Res Ltd Catheters
US5081993A (en) * 1987-11-11 1992-01-21 Circulation Research Limited Methods and apparatus for the examination and treatment of internal organs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134845A1 (en) * 1983-09-21 1985-03-27 Walter Spaa Safety catheter
US5081993A (en) * 1987-11-11 1992-01-21 Circulation Research Limited Methods and apparatus for the examination and treatment of internal organs
GB2224801A (en) * 1988-11-10 1990-05-16 Circulation Res Ltd Catheters
WO1991017785A1 (en) * 1988-11-10 1991-11-28 Circulation Research Limited Catheters

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee