GB1536270A - Electrical current-carrying members - Google Patents
Electrical current-carrying membersInfo
- Publication number
- GB1536270A GB1536270A GB52334/74A GB5233474A GB1536270A GB 1536270 A GB1536270 A GB 1536270A GB 52334/74 A GB52334/74 A GB 52334/74A GB 5233474 A GB5233474 A GB 5233474A GB 1536270 A GB1536270 A GB 1536270A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductive
- conductor
- tube
- media
- platinum
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/048—Flexible cables, conductors, or cords, e.g. trailing cables for implantation into a human or animal body, e.g. pacemaker leads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/375—Constructional arrangements, e.g. casings
- A61N1/37512—Pacemakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
- H01B7/0027—Liquid conductors
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Electrotherapy Devices (AREA)
Abstract
1536270 Cardiac pacer leads GREATER GLASGOW HEALTH BOARD 2 Dec 1975 [3 Dec 1974] 52334/74 Heading A5R [Also in Division H1] A current carrying member for a cardiac pacemaker comprises a flexible insulating tube 2 and at least two different electrically conductive media within the tube, the media having different fatigue properties and each being capable of carrying, on its own, sufficient current to promote a pacemaking function in the heart. One of the media is a conductive fluid, sol, gel or paste. As shown one conductor is a coiled filament 3 of platinum or a platinum/iridium alloy, a second conductor is a conductive paste 4 and a third conductor is metallic coating 5 e.g. of platinum formed on the inside of the insulating tube 2. A fourth conductor may comprise a similar coating 8 on the outer surface of an inner conductive tube 1. All the conductors are connected to the heat electrode at one end and to the generator at the other; thus if the main conductor 3 fractures the remaining conductors provide sufficient current to promote the pacemaking function in the heart. A stylet 7 may be inserted in the inner tube 1 to facilitate insertion through veins. For bipolar devices two of the above conductors can be provided in a single insulating sheath. The insulating tubes may be of silicone rubber and the conducting medium between the tubes may be a conductive fluid, a conductive sol or a conductive gel. This medium may be made radio-opaque so that leaks can be detected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB52334/74A GB1536270A (en) | 1975-12-02 | 1975-12-02 | Electrical current-carrying members |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB52334/74A GB1536270A (en) | 1975-12-02 | 1975-12-02 | Electrical current-carrying members |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1536270A true GB1536270A (en) | 1978-12-20 |
Family
ID=10463530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB52334/74A Expired GB1536270A (en) | 1975-12-02 | 1975-12-02 | Electrical current-carrying members |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1536270A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2446001A1 (en) * | 1979-01-03 | 1980-08-01 | Cardiofrance Co | Electrical conductor for cardiac pacemaker - has inner conducting sleeve surrounded by carbon fibres inside outer flexible insulating sleeve |
EP0080536A1 (en) * | 1981-12-02 | 1983-06-08 | Walter Spaa | Cardiac stimulator |
CN103093865A (en) * | 2011-10-28 | 2013-05-08 | 清华大学 | Pacemaker electrode line and pacemaker |
-
1975
- 1975-12-02 GB GB52334/74A patent/GB1536270A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2446001A1 (en) * | 1979-01-03 | 1980-08-01 | Cardiofrance Co | Electrical conductor for cardiac pacemaker - has inner conducting sleeve surrounded by carbon fibres inside outer flexible insulating sleeve |
EP0080536A1 (en) * | 1981-12-02 | 1983-06-08 | Walter Spaa | Cardiac stimulator |
CN103093865A (en) * | 2011-10-28 | 2013-05-08 | 清华大学 | Pacemaker electrode line and pacemaker |
CN103093865B (en) * | 2011-10-28 | 2015-06-03 | 清华大学 | Pacemaker electrode line and pacemaker |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |