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1. WO1990014046 - DILATATION CATHETER ASSEMBLY WITH HEATED BALLOON

Publication Number WO/1990/014046
Publication Date 29.11.1990
International Application No. PCT/US1990/002744
International Filing Date 15.05.1990
Chapter 2 Demand Filed 07.12.1990
IPC
A61B 17/22 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
22Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
A61B 18/08 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
08by means of electrically-heated probes
A61M 29/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES 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
29Dilators with or without means for introducing media, e.g. remedies
02Inflatable dilators; Dilators made of swellable materials
CPC
A61B 18/08
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
08by means of electrically-heated probes
A61B 18/082
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
08by means of electrically-heated probes
082Probes or electrodes therefor
A61B 2017/22001
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
22Implements for squeezing-off ulcers or the like on ; the inside of; inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; ; Apparatus for removing obstructions in blood vessels, not otherwise provided for
22001Angioplasty, e.g. PCTA
A61B 2017/22002
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
22Implements for squeezing-off ulcers or the like on ; the inside of; inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; ; Apparatus for removing obstructions in blood vessels, not otherwise provided for
22001Angioplasty, e.g. PCTA
22002preventing restenosis
A61M 2025/1075
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
25Catheters; Hollow probes
10Balloon catheters
1043with special features or adapted for special applications
1075having a balloon composed of several layers, e.g. by coating or embedding
A61M 2025/1097
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
25Catheters; Hollow probes
10Balloon catheters
1043with special features or adapted for special applications
1097with perfusion means for enabling blood circulation only while the balloon is in an inflated state, e.g. temporary by-pass within balloon
Applicants
  • ADVANCED CARDIOVASCULAR SYSTEMS, INC. [US]/[US]
Inventors
  • KASPRZYK, Daniel, John
  • ORTH, Jean, Conway
  • GAISER, John, W.
  • HOUSER, Russell, A.
Agents
  • ABRAHAMS, Colin, P.
Priority Data
351,77715.05.1989US
521,33709.05.1990US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DILATATION CATHETER ASSEMBLY WITH HEATED BALLOON
(FR) ENSEMBLE A CATHETER DE DILATATION AVEC BALLON CHAUFFE
Abstract
(EN)
A balloon dilatation catheter (10) having heating elements (22) raises the temperature of the working surface of the balloon while the balloon is being inflated during an angioplasty procedure. In one embodiment, the balloon (12) is provided with a thin electrically conductive layer (20) in heat transfer relationship therewith preferably on the interior surface of the balloon (12). Electrical power (33) at radio frequencies is preferred and a coaxial cable (24) is employed to deliver such power to a conductive layer (22) for heating the balloon (12). In another embodiment, the balloon itself (43) is formed of electrically conductive material. A perfusion lumen (42) may be provided through the balloon with one or more proximal inlet ports (46) and one or more distal discharge ports (47) in fluid communication with the lumen (42) to allow blood to pass through the balloon (43) when it is inflated during angioplasty procedures. This facilitates the flow of oxygenated blood distally of the catheter when the balloon is inflated thus allowing for extended balloon inflations, e.g., up to 30 minutes or more. The catheter assembly (10) may also be employed to treat myocardial infarction by dilating thrombotic occlusions.
(FR)
Un cathéter à ballon de dilatation (10) ayant des éléments chauffants (22) augmente la température de la surface effective du ballon pendant son gonflage lors d'une angioplastie. Dans un mode de réalisation, le ballon (12) est pourvu d'une fine couche électroconductrice (20) en relation de transfert thermique, placé de préférence sur la surface intérieure du ballon (12). On utilise de préférence un courant électrique (33) à haute fréquence ainsi qu'un câble coaxial (24) pour amener l'alimentation électrique à la couche conductrice (22) en vue de chauffer le ballon (12). Dans un autre mode de réalisation, le ballon lui-même (43) est constitué d'un matériau électroconducteur. Une ouverture de perfusion (42) peut être ménagée au travers du ballon avec un ou plusieurs orifices d'admission proximaux (46) et un ou plusieurs orifices de décharge distaux (47) en communication fluide avec l'ouverture (42) pour permettre au sang de passer au travers du ballon (43) lorsqu'il est gonflé pendant l'angioplastie. Ceci facilite l'écoulement de sang oxygéné distalement par rapport au cathéter lorsque le ballon est gonflé permettant ainsi d'effectuer des gonflages prolongés du ballon, par exemple jusqu'à 30 minutes ou davantage. L'ensemble à cathéter (10) peut également être utilisé pour traiter l'infarctus du myocarde en dilatant des occlusions thrombotiques.
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