The present disclosure relates to a saccular cavopulmonary assist device, including a shell, an inflow tube (6) and an outflow tube (4), wherein a blood storage cavity (A) and a power cavity (B) are arranged in the shell, and the power cavity (B) is used for providing contraction and relaxation power for the blood storage cavity (A); the inflow tube (6) is arranged at a position corresponding to the power cavity (B) on the shell, an outer end is used for communicating with the vena cava, and an inner end communicates with the blood storage cavity (A) after passing through the power cavity (B); the outflow tube (4) is arranged at a position corresponding to the blood storage cavity (A) on the shell, an outer end is used for communicating with the pulmonary artery, and an inner end communicates with the blood storage cavity (A). This device can assist the cavopulmonary circulation of the single ventricle, realize repeated blood drawing and pumping actions, provide the required power for the pulmonary circulation of the patient, and restore the biventricular blood flow in the human body; and because the arrangement of the inflow tube in the power cavity, the internal structure of this device is more compact, the overall shape is smaller, and the energy of the power cavity can be fully utilized.

Apparatus and methods for driving a circulatory assist device with motive power from a fluid motor. In one example a parallel plate Tesla-type of motor extracts power from the circulatory system of a biological unit to drive a non-positive displacement pump and increase blood pressure in the biological unit.

Apparatus and methods for driving a circulatory assist device with motive power from a fluid motor. In one example a parallel plate Tesla-type of motor extracts power from the circulatory system of a biological unit to drive a non-positive displacement pump and increase blood pressure in the biological unit.

Extracorporeal circuit devices that can be used for on-pump open-heart surgery to support surgical procedures such as coronary artery bypass grafting are described. In some embodiments, an oxygenator can include an integral pump. Such an integrated arrangement can advantageously provide an extracorporeal circuit with a lower overall volume than other conventional extracorporeal circuits.

Some embodiments disclosed herein relate to devices and methods for controlling placement of intraocular implants within a patient's eye including but not limited to placement within or near the collector ducts of Schlemm's canal located behind the trabecular meshwork. In some embodiments, a handheld peristaltic rotor device having a compression element can be positioned on a corneal surface of the eye and rotated to create a peristaltic movement of blood in one or more episcleral veins to generate blood reflux within Schlemm's canal such that one or more collector ducts, or channels, of Schlemm's canal can be located. In some embodiments, an implant can be implanted near the identified location of the one or more collector ducts, or channels.

A method, device, or system for treating eye disorders or conditions, comprising restoring or increasing blood flow or blood flow rate in an artery that supplies blood to or in the eye, thereby increasing the amount of nutrient(s) that reaches the eye or a portion thereof. The invention also includes methods, devices, or systems for treating eye disorders or conditions which use reverse flow or retrograde flow structures and systems during the treatment of the eye disease.

A method, device, or system for treating eye disorders or conditions, comprising restoring or increasing blood flow or blood flow rate in an artery that supplies blood to or in the eye, thereby increasing the amount of nutrient(s) that reaches the eye or a portion thereof. The invention also includes methods, devices, or systems for treating eye disorders or conditions which use reverse flow or retrograde flow structures and systems during the treatment of the eye disease.

The invention relates to a radial blood pump (1) for supporting a blood flow (106) in a human or animal heart (205) comprising a first and a second inlet channel (41, 42), a first outlet channel (51, 52), a first electric motor (71) comprising a first stator (77) and a first internal rotor (75), wherein the first electric motor (71) is configured to drive an impeller (2, 2a, 2b) arranged at an intersection of the first with the second inlet channel (41, 42), wherein the impeller (2, 2a, 2b) is connected to the first internal rotor (75) and wherein the impeller (2, 2a, 2b) comprises a merging portion (22) arranged at the intersection, where a merging of a first blood flow (106) coming from the first inlet channel (41) and a second blood flow (107) coming from the second inlet channel (42) takes place, wherein the impeller (2, 2a, 2b) is configured to pump the first and second blood flow (106, 107) from the first and second inlet channel (41, 42) via the merging portion (22) to the first outlet channel (51), a plurality of blades (20) comprised by the impeller (2, 2a, 2b), wherein the blades (20) form blade channels (21) comprised by the merging portion (22), wherein each blade (20) is arranged and configured to pump the first and second blood (106, 107) flow entering through the first and the second inlet channel (41, 42) towards the outlet channel (51), wherein the blood pump (1) is arranged and configured such that the first blood flow (106) and the second blood flow (107) meet at the merging portion (22), such that a pressure difference between the first and second blood flow (106, 107) is reduced before blood from first and second blood flow (106, 107) is pumped to the first outlet channel (51).

The invention relates to a radial blood pump (1) for supporting a blood flow (106) in a human or animal heart (205) comprising a first and a second inlet channel (41, 42), a first outlet channel (51, 52), a first electric motor (71) comprising a first stator (77) and a first internal rotor (75), wherein the first electric motor (71) is configured to drive an impeller (2, 2a, 2b) arranged at an intersection of the first with the second inlet channel (41, 42), wherein the impeller (2, 2a, 2b) is connected to the first internal rotor (75) and wherein the impeller (2, 2a, 2b) comprises a merging portion (22) arranged at the intersection, where a merging of a first blood flow (106) coming from the first inlet channel (41) and a second blood flow (107) coming from the second inlet channel (42) takes place, wherein the impeller (2, 2a, 2b) is configured to pump the first and second blood flow (106, 107) from the first and second inlet channel (41, 42) via the merging portion (22) to the first outlet channel (51), a plurality of blades (20) comprised by the impeller (2, 2a, 2b), wherein the blades (20) form blade channels (21) comprised by the merging portion (22), wherein each blade (20) is arranged and configured to pump the first and second blood (106, 107) flow entering through the first and the second inlet channel (41, 42) towards the outlet channel (51), wherein the blood pump (1) is arranged and configured such that the first blood flow (106) and the second blood flow (107) meet at the merging portion (22), such that a pressure difference between the first and second blood flow (106, 107) is reduced before blood from first and second blood flow (106, 107) is pumped to the first outlet channel (51).

A bearingless and sealless rotary blood pump is disclosed which provides multidirectional flow intended to provide low-pressure, high-volume right-sided partial assist circulatory support in a univentricular Fontan circulation on a permanent basis. The pump includes a housing and an impeller suspended in the center of the housing. The housing incorporates flow optimization features between inlet and outlet ends, as well as with the impeller surface. Large fluid gaps maintained between impeller and housing eliminate any potential for blood flow obstruction. The impeller contains some motor components. It includes a central stator and surrounding rotor. The motor includes a brushless DC outrunner electrical motor design. An electromagnetic stator core is surrounded by a circumferential passive magnetic ring. The rotor is further levitated about the stator spindle by a plurality of axially and radially located passive magnetic and hydrodynamic journal bearings on both ends of the spindle. The rotor is bearingless and sealless. During impeller rotation, blood entering the space between the rotor and stator is induced to flow by centrifugal pumping action and the fluid film separates the stator hydrodynamic bearings from the rotor so that there is no direct mechanical contact between the rotor and stator.