The invention relates to a catheter device (100) comprising a catheter (68) for insertion into a living being and at least one lumen (69, 70, 74, 79) for guiding a fluid flow within a section of the catheter device, and comprising a valve for controlling a fluid flow, in particular through a catheter, having a valve control chamber (12, 12a), into which an inlet opening (1a) of an inlet channel (1) and an outlet opening (2a) of an outlet channel (2) open, and further having a closure element (5, 13, 17) which can be moved in the valve control chamber (12, 12a) in a controlled manner and which, in at least a first position (I), closes the outlet opening (2a), in at least a second position (II) closes the inlet opening (1a), and which, in at least a third position (III), keeps open a connecting channel between the inlet opening (1a) and the outlet opening (2a), a valve train (A, A, B, B, 3, 14, 18) being provided and optionally moving the closure element (5, 13, 17) to at least the first, second or third position, and the at least one lumen (68, 70, 74, 79) being fluidically connected to the inlet channel or the outlet channel.

A thin-film, diaphragm based device is disclosed which can be used to perform an array of sensing and actuating operations where a very thin profile is desired, such as in millimeter, micrometer, or nanometer tight spaces.

The invention relates to a catheter device (100) comprising a catheter (68) for insertion into a living being and at least one lumen (69, 70, 74, 79) for guiding a fluid flow within a section of the catheter device, and comprising a valve for controlling a fluid flow, in particular through a catheter, having a valve control chamber (12, 12a), into which an inlet opening (1a) of an inlet channel (1) and an outlet opening (2a) of an outlet channel (2) open, and further having a closure element (5, 13, 17) which can be moved in the valve control chamber (12, 12a) in a controlled manner and which, in at least a first position (I), closes the outlet opening (2a), in at least a second position (II) closes the inlet opening (1a), and which, in at least a third position (III), keeps open a connecting channel between the inlet opening (1a) and the outlet opening (2a), a valve train (A, A, B, B, 3, 14, 18) being provided and optionally moving the closure element (5, 13, 17) to at least the first, second or third position, and the at least one lumen (68, 70, 74, 79) being fluidically connected to the inlet channel or the outlet channel.

A ventricular ejection device adapted to be delivered percutaneously or surgically in to a ventricle of the heart, and the device comprising of an anchoring stent which is adapted to be fitted along a perimeter to a myocardium of the ventricle, and a recoiling part in physical coupling to the anchoring stent, extends from the perimeter of the anchoring stent to a center of the device, and adapted to extend or recoil based on flow of blood into and out of the ventricle.

A thin-film, diaphragm based device is disclosed which can be used to perform an array of sensing and actuating operations where a very thin profile is desired, such as in millimeter, micrometer, or nanometer tight spaces.

Apparatus and methods are described, including apparatus (20) for implanting in a heart of a human subject. The apparatus includes an interatrial anchor (22) shaped to define an opening (26) having a diameter of 4-8 mm, and a bag (24) in fluid communication with the opening of the anchor. The apparatus is shaped to fit within a right atrium of the heart of the subject, and has a capacity of between 4 and 20 cm3. Other applications are also described.

A ventricular ejection device adapted to be delivered percutaneously or surgically in to a ventricle of the heart, and the device comprising of an anchoring stent which is adapted to be fitted along a perimeter to a myocardium of the ventricle, and a recoiling part in physical coupling to the anchoring stent, extends from the perimeter of the anchoring stent to a center of the device, and adapted to extend or recoil based on flow of blood into and out of the ventricle.

Apparatus for blood processing comprising a blood collection reservoir (30), a blood collection conduit, a blood transfer conduit, and a manually operable pump unit (10) comprising first and second peristaltic pumps (10A, 10B). The first peristaltic pump is mounted about and acts upon the blood collection conduit. The second peristaltic pump is mounted about and acts upon the blood transfer conduit. The pump unit is provided with an actuator (112) adapted to switch the second peristaltic pump between an operative condition and an inoperative condition: in the operative condition the second peristaltic pump is engaged with the blood transfer conduit to convey blood from the blood collection reservoir while the first peristaltic pump is engaged with the blood collection conduit to convey blood from a wound site to the blood collection reservoir, and in the inoperative condition the second peristaltic pump is disengaged from the blood transfer conduit.

The present disclosure discloses an impeller of a cardiac assist device, and the cardiac assist device. The impeller of the cardiac assist device includes an impeller shaft and a plurality of blades; a shape of the plurality of blades is set such that: blade cascades of the plurality of blades are of arc lines that recess towards a same side, and the blade cascade is a planar unfolding shape of an intersection line where a cylindrical surface intersects with the blade. In the present disclosure, a traditional wing-shaped blade cascade is changed, the blade cascades are of arc lines that recess towards the same side, this design enables blood to pass through the impeller at a smaller inflow angle and a greater outflow angle, the smaller inflow angle may generate a greater lift, so that the impeller obtains a greater output power, and meanwhile, a rotational flow can be prevented from being generated at an inflow port, such that the blood stably flows into the impeller. The greater outflow angle can convert the rotation energy of the blood at an outflow port into an axial kinetic energy, thereby obtaining a greater axial speed, and improving the efficiency of the impeller.

The present disclosure discloses an impeller of a cardiac assist device, and the cardiac assist device. The impeller of the cardiac assist device includes an impeller shaft and a plurality of blades; a shape of the plurality of blades is set such that: blade cascades of the plurality of blades are of arc lines that recess towards a same side, and the blade cascade is a planar unfolding shape of an intersection line where a cylindrical surface intersects with the blade. In the present disclosure, a traditional wing-shaped blade cascade is changed, the blade cascades are of arc lines that recess towards the same side, this design enables blood to pass through the impeller at a smaller inflow angle and a greater outflow angle, the smaller inflow angle may generate a greater lift, so that the impeller obtains a greater output power, and meanwhile, a rotational flow can be prevented from being generated at an inflow port, such that the blood stably flows into the impeller. The greater outflow angle can convert the rotation energy of the blood at an outflow port into an axial kinetic energy, thereby obtaining a greater axial speed, and improving the efficiency of the impeller.