Left ventricular assist system
First Claim
1. An implantable system for assisting the left heart ventricle, said system comprising:
- a pumping means including a drive unit;
a cooling means for cooling said drive unit; and
a power supply unit for said cooling means and said drive unit, wherein;
said pumping means comprises two compressible pump chambers constituted by sacs and a single pusher plate arranged between said two pump chambers, said pusher plate being movable back and forth between two end positions by operation of said drive unit in order to compress said two pump chambers in alternation;
each of said pump chambers has an inlet side and an outlet side and one of said two pump chambers is emptied while the other one is being filled, and vice versa; and
said system further comprises;
two inlet side adapter parts and two heart valves, each said heart valve being housed in a respective adapter part and each said inlet side adapter part being connected to the inlet side of a respective pump chamber;
a first Y-adapter having two branches each connected to a respective inlet side adapter part;
two outlet side adapter parts each connected to the outlet side of a respective pump chamber;
a second Y-adapter having two branches each connected to a respective outlet side adapter part; and
a flap-shaped sail valve housed in said second Y-adapter at a location where said branches of said second Y-adapter meet.
1 Assignment
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Accused Products
Abstract
A fully implantable left ventricular assist system comprising a pumping means connectable via adapter elements to the ventricle includes two compressible chambers in the form of sacs (5, 5′) and a compressing means (4) to alternatingly fill and discharge the compressible chambers (5, 5′) at the same time, including a drive unit (41) assigned thereto, a cooling means (50) for cooling the drive unit (41), and a power supply unit (60) for the drive unit (41) and cooling means (50).
In this implantable system the pumping means, compression means (4), drive unit (41) and part of the cooling means (50) are accommodated in a two-part housing (1) on which tubular ports (10a, 10b; 10′a, 10′b) for connecting Y-shaped adapter elements (3, 3′) are configured.
60 Citations
11 Claims
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1. An implantable system for assisting the left heart ventricle, said system comprising:
- a pumping means including a drive unit;
a cooling means for cooling said drive unit; and
a power supply unit for said cooling means and said drive unit, wherein;said pumping means comprises two compressible pump chambers constituted by sacs and a single pusher plate arranged between said two pump chambers, said pusher plate being movable back and forth between two end positions by operation of said drive unit in order to compress said two pump chambers in alternation;
each of said pump chambers has an inlet side and an outlet side and one of said two pump chambers is emptied while the other one is being filled, and vice versa; and
said system further comprises;
two inlet side adapter parts and two heart valves, each said heart valve being housed in a respective adapter part and each said inlet side adapter part being connected to the inlet side of a respective pump chamber;
a first Y-adapter having two branches each connected to a respective inlet side adapter part;
two outlet side adapter parts each connected to the outlet side of a respective pump chamber;
a second Y-adapter having two branches each connected to a respective outlet side adapter part; and
a flap-shaped sail valve housed in said second Y-adapter at a location where said branches of said second Y-adapter meet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- a pumping means including a drive unit;
Specification