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1. WO2012071567 - PNEUMATIC OR HYDRAULIC CARDIAC ASSIST DEVICES

Publication Number WO/2012/071567
Publication Date 31.05.2012
International Application No. PCT/US2011/062138
International Filing Date 23.11.2011
IPC
A61M 1/12 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
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
12implantable into the body
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
A61F 2/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
02Prostheses implantable into the body
A61L 27/58 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
27Materials for prostheses or for coating prostheses
50Materials characterised by their function or physical properties
58Materials at least partially resorbable by the body
CPC
A61M 1/106
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
1037Pumps having flexible elements, e.g. with membranes, diaphragms, or bladder pumps
1046Drive systems therefor, e.g. mechanically, electromechanically or skeletal muscle drive means
106using hydraulic or pneumatic means
A61M 1/1063
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
1037Pumps having flexible elements, e.g. with membranes, diaphragms, or bladder pumps
1046Drive systems therefor, e.g. mechanically, electromechanically or skeletal muscle drive means
106using hydraulic or pneumatic means
1063Diastole or systole switching by stopping or reversing a hydraulic or pneumatic pump operating at a much higher cyclical speed than the heart rate
A61M 1/1068
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
1037Pumps having flexible elements, e.g. with membranes, diaphragms, or bladder pumps
1067using a blood vessel as flexible element
1068using the heart as flexible element
A61M 1/12
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
12implantable into the body
Applicants
  • LILLEHEI, Theodore, J. [US]/[US]
  • ROBINSON, Allan, R. [US]/[US]
Inventors
  • LILLEHEI, Theodore, J.
  • ROBINSON, Allan, R.
Agents
  • McTAVISH, Hugh
Priority Data
61/458,49723.11.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PNEUMATIC OR HYDRAULIC CARDIAC ASSIST DEVICES
(FR) DISPOSITIFS D'ASSISTANCE CARDIAQUE PNEUMATIQUES OU HYDRAULIQUES
Abstract
(EN)
The embodiments relate to cardiac assist devices that comprise a jacket that wraps the exterior of the heart, where the jacket comprises one or more pneumatic or hydraulic bladders. The pneumatic or hydraulic bladders are linked to a pump, and the pump fills the bladders with fluid and withdraws the fluid in a cycle to match beats of the heart to assist contraction and pumping of the heart in systole or to assist expansion and filling of the heart in diastole.
(FR)
Les modes de réalisation de l'invention concernent des dispositifs d'assistance cardiaque qui comprennent une chemise qui enveloppe l'extérieur du cœur, la chemise comprenant une ou plusieurs vessies pneumatiques ou hydrauliques. Les vessies pneumatiques ou hydrauliques sont reliées à une pompe et la pompe remplit les vessies avec du fluide et évacue le fluide suivant un cycle reproduisant les battements du cœur afin de faciliter la contraction et le pompage du cœur en phase systolique ou afin de faciliter le relâchement et le remplissage du cœur en phase diastolique.
Also published as
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